diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index da78bd3101..6075adace3 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -5,7 +5,6 @@
       <directory url="file://$PROJECT_DIR$/src/test/java/org/wise/portal/dao" includeSubdirectories="true" />
       <directory url="file://$PROJECT_DIR$/src/test/java/org/wise/portal/domain" includeSubdirectories="true" />
       <directory url="file://$PROJECT_DIR$/src/test/java/org/wise/portal/mail" includeSubdirectories="true" />
-      <directory url="file://$PROJECT_DIR$/src/test/java/org/wise/portal/presentation/web/controllers/admin" includeSubdirectories="true" />
       <directory url="file://$PROJECT_DIR$/src/test/java/org/wise/portal/presentation/web/controllers/general/contactwise" includeSubdirectories="true" />
       <directory url="file://$PROJECT_DIR$/src/test/java/org/wise/portal/presentation/web/controllers/teacher" includeSubdirectories="true" />
       <directory url="file://$PROJECT_DIR$/src/test/java/org/wise/portal/presentation/web/controllers" includeSubdirectories="false" />
diff --git a/package.json b/package.json
index 48f97a8336..1aa32a66bc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wise",
-  "version": "5.7.5",
+  "version": "5.7.6",
   "description": "Web-based Inquiry Science Environment",
   "main": "app.js",
   "dependencies": {
diff --git a/pom.xml b/pom.xml
index 65c3267bbc..50ba12b720 100644
--- a/pom.xml
+++ b/pom.xml
@@ -35,7 +35,7 @@
   <artifactId>wise</artifactId>
   <packaging>war</packaging>
   <name>Web-based Inquiry Science Environment</name>
-  <version>5.7.5</version>
+  <version>5.7.6</version>
   <url>http://wise5.org</url>
 
   <licenses>
@@ -124,7 +124,6 @@
               <testExcludes>
                 <exclude>**/org/wise/portal/service/**/*.java</exclude>
                 <exclude>**/org/wise/portal/domain/**/*.java</exclude>
-                <exclude>**/org/wise/portal/presentation/web/controllers/admin/*.java</exclude>
                 <exclude>**/org/wise/portal/presentation/web/controllers/general/contactwise/*.java</exclude>
                 <exclude>**/org/wise/portal/presentation/web/controllers/teacher/**/*.java</exclude>
                 <exclude>**/org/wise/portal/presentation/web/controllers/*.java</exclude>
@@ -148,7 +147,6 @@
           <excludes>
             <exclude>**/org/wise/portal/service/**/*.java</exclude>
             <exclude>**/org/wise/portal/domain/**/*.java</exclude>
-            <exclude>**/org/wise/portal/presentation/web/controllers/admin/*.java</exclude>
             <exclude>**/org/wise/portal/presentation/web/controllers/general/contactwise/*.java</exclude>
             <exclude>**/org/wise/portal/presentation/web/controllers/teacher/**/*.java</exclude>
             <exclude>**/org/wise/portal/presentation/web/controllers/*.java</exclude>
diff --git a/src/main/java/org/wise/portal/domain/admin/DailyAdminJob.java b/src/main/java/org/wise/portal/domain/admin/DailyAdminJob.java
index 0b27c0c617..a04278f16a 100644
--- a/src/main/java/org/wise/portal/domain/admin/DailyAdminJob.java
+++ b/src/main/java/org/wise/portal/domain/admin/DailyAdminJob.java
@@ -147,7 +147,6 @@ public void doJob() {
         try {
           JSONObject wiseStatisticsJSONObject = new JSONObject();
           wiseStatisticsJSONObject.put("wiseName", wiseProperties.getProperty("wise.name"));
-          wiseStatisticsJSONObject.put("wiseBaseURL", wiseProperties.getProperty("wiseBaseURL"));
 
           PortalStatistics latestPortalStatistics = portalStatisticsService.getLatestPortalStatistics();
           wiseStatisticsJSONObject.put("portal", latestPortalStatistics.getJSONObject());
@@ -680,7 +679,6 @@ public void postStatistics(String wiseStatisticsString) {
 
       List<NameValuePair> urlParameters = new ArrayList<NameValuePair>();
       urlParameters.add(new BasicNameValuePair("name", wiseProperties.getProperty("wise.name")));
-      urlParameters.add(new BasicNameValuePair("wiseBaseURL", wiseProperties.getProperty("wiseBaseURL")));
       urlParameters.add(new BasicNameValuePair("stats", wiseStatisticsString));
 
       try {
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/InformationController.java b/src/main/java/org/wise/portal/presentation/web/controllers/InformationController.java
index 8c31e4ffe5..420636b351 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/InformationController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/InformationController.java
@@ -136,14 +136,13 @@ public void handleGetConfigWISE4(HttpServletRequest request, HttpServletResponse
     throws ObjectNotFoundException, IOException {
     User signedInUser = ControllerUtil.getSignedInUser();
     String mode = request.getParameter("mode");
-
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+    String contextPath = request.getContextPath();
     JSONObject config = new JSONObject();
     String projectIdString = request.getParameter("projectId");
     // if projectId provided, this is a request for preview
     if (projectIdString != null) {
       Project project = projectService.getById(Long.parseLong(projectIdString));
-      addPreviewConfigParametersWISE4(request, signedInUser, mode, wiseBaseURL, config, project);
+      addPreviewConfigParametersWISE4(request, signedInUser, mode, contextPath, config, project);
       printConfigToResponse(response, config);
       return;
     }
@@ -155,7 +154,7 @@ public void handleGetConfigWISE4(HttpServletRequest request, HttpServletResponse
       if (workgroup == null && signedInUser == null && !signedInUser.isAdmin()) {
         return;
       }
-      addRunConfigParametersWISE4(request, signedInUser, mode, wiseBaseURL, config, runId, run, workgroup);
+      addRunConfigParametersWISE4(request, signedInUser, mode, contextPath, config, runId, run, workgroup);
       printConfigToResponse(response, config);
       return;
     }
@@ -219,18 +218,19 @@ public void handleGetConfigWISE5ClassroomMonitor(HttpServletRequest request,
     getRunConfigParameters(request, config, run);
 
     User signedInUser = ControllerUtil.getSignedInUser();
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+    String contextPath = request.getContextPath();
+
     if (hasRunReadAccess(signedInUser, run)) {
       config.put("runCode", run.getRuncode());
-      config.put("teacherDataURL", wiseBaseURL + "/teacher/data");
-      config.put("runDataExportURL", wiseBaseURL + "/teacher/export");
-      config.put("studentNotebookURL", wiseBaseURL + "/teacher/notebook/" + runId);
+      config.put("teacherDataURL", contextPath + "/teacher/data");
+      config.put("runDataExportURL", contextPath + "/teacher/export");
+      config.put("studentNotebookURL", contextPath + "/teacher/notebook/" + runId);
     }
 
     Project project = run.getProject();
     if (hasRunWriteAccess(signedInUser, run)) {
       String projectId = project.getId().toString();
-      String saveProjectURL = wiseBaseURL + "/project/save/" + projectId;
+      String saveProjectURL = contextPath + "/project/save/" + projectId;
       config.put("saveProjectURL", saveProjectURL);
     }
 
@@ -444,7 +444,7 @@ private JSONArray getPeriodsJSONArray(Run run) {
 
   private void addPreviewConfigParametersWISE4(
     HttpServletRequest request, User signedInUser, String mode,
-    String wiseBaseURL, JSONObject config, Project project) {
+    String contextPath, JSONObject config, Project project) {
     try {
       config.put("runId", "");
       config.put("runName", "");
@@ -462,11 +462,11 @@ private void addPreviewConfigParametersWISE4(
     } catch (JSONException e) {
       e.printStackTrace();
     }
-    addCommonConfigParametersWISE4(request, signedInUser, mode, wiseBaseURL, config, project);
+    addCommonConfigParametersWISE4(request, signedInUser, mode, contextPath, config, project);
   }
 
   private void addRunConfigParametersWISE4(HttpServletRequest request, User signedInUser,
-                                           String mode, String wiseBaseURL, JSONObject config, String runId, Run run, Workgroup workgroup) {
+                                           String mode, String contextPath, JSONObject config, String runId, Run run, Workgroup workgroup) {
     Long workgroupId = null;
     Long periodId = null;
     if (workgroup != null && workgroup.isStudentWorkgroup()) {
@@ -482,47 +482,46 @@ private void addRunConfigParametersWISE4(HttpServletRequest request, User signed
       config.put("runId", Long.parseLong(runId));
       config.put("runName", run.getName());
       config.put("isRunActive", !run.isEnded());
-      config.put("flagsURL", wiseBaseURL + "/annotation?type=flag&runId=" + runId);
-      config.put("inappropriateFlagsURL", wiseBaseURL + "/annotation?type=inappropriateFlag&runId=" + runId);
-      config.put("annotationsURL", wiseBaseURL + "/annotation?type=annotation&runId=" + runId);
-      config.put("studentDataURL", wiseBaseURL + "/studentData.html");
+      config.put("flagsURL", contextPath + "/annotation?type=flag&runId=" + runId);
+      config.put("inappropriateFlagsURL", contextPath + "/annotation?type=inappropriateFlag&runId=" + runId);
+      config.put("annotationsURL", contextPath + "/annotation?type=annotation&runId=" + runId);
+      config.put("studentDataURL", contextPath + "/studentData.html");
       config.put("gradingType", request.getParameter("gradingType"));
       config.put("getRevisions", request.getParameter("getRevisions"));
-      config.put("peerReviewURL", wiseBaseURL + "/peerReview.html?type=peerreview");
-      config.put("ideaBasketURL", getIdeaBasketURL(runId, wiseBaseURL, run, periodId, workgroupId));
-      config.put("portfolioURL", getPortfolioURL(runId, wiseBaseURL, periodId, workgroupId));
-      config.put("studentAssetManagerURL", wiseBaseURL + "/assetManager?type=studentAssetManager&runId=" + runId);
+      config.put("peerReviewURL", contextPath + "/peerReview.html?type=peerreview");
+      config.put("ideaBasketURL", getIdeaBasketURL(runId, contextPath, run, periodId, workgroupId));
+      config.put("portfolioURL", getPortfolioURL(runId, contextPath, periodId, workgroupId));
+      config.put("studentAssetManagerURL", contextPath + "/assetManager?type=studentAssetManager&runId=" + runId);
       config.put("runInfo", run.getInfo());
       config.put("isRealTimeEnabled", true);  // TODO: make this run-specific setting
-      config.put("webSocketURL", getWebSocketURL(request, wiseBaseURL));
-      config.put("studentStatusURL", wiseBaseURL + "/studentStatus");
-      config.put("runStatusURL", wiseBaseURL + "/runStatus");
+      config.put("webSocketURL", getWebSocketURL(request, contextPath));
+      config.put("studentStatusURL", contextPath + "/studentStatus");
+      config.put("runStatusURL", contextPath + "/runStatus");
       config.put("postLevel", run.getPostLevel());
-      config.put("userInfoURL", wiseBaseURL + "/userInfo?runId=" + runId);
+      config.put("userInfoURL", contextPath + "/userInfo?runId=" + runId);
 
       if ("grading".equals(mode)) {
-        config.put("premadeCommentsURL", wiseBaseURL + "/teacher/grading/premadeComments.html");
-        config.put("getXLSExportURL", wiseBaseURL + "/export?type=xlsexport&runId=" + runId);
-        config.put("getSpecialExportURL", wiseBaseURL + "/specialExport?type=specialExport&runId=" + runId);
-        config.put("getStudentListURL", wiseBaseURL + "/teacher/management/studentListExport?runId=" + runId);
+        config.put("premadeCommentsURL", contextPath + "/teacher/grading/premadeComments.html");
+        config.put("getXLSExportURL", contextPath + "/export?type=xlsexport&runId=" + runId);
+        config.put("getSpecialExportURL", contextPath + "/specialExport?type=specialExport&runId=" + runId);
+        config.put("getStudentListURL", contextPath + "/teacher/management/studentListExport?runId=" + runId);
       }
     } catch (JSONException e) {
       e.printStackTrace();
     }
     Project project = run.getProject();
-    addCommonConfigParametersWISE4(request, signedInUser, mode, wiseBaseURL, config, project);
+    addCommonConfigParametersWISE4(request, signedInUser, mode, contextPath, config, project);
   }
 
   private void addCommonConfigParametersWISE4(
     HttpServletRequest request, User signedInUser, String mode,
-    String wiseBaseURL, JSONObject config, Project project) {
+    String contextPath, JSONObject config, Project project) {
     assert project != null;
     try {
-      config.put("wiseBaseURL", wiseBaseURL);
-      String contextPath = request.getContextPath();
+      config.put("wiseBaseURL", contextPath);
       config.put("contextPath", contextPath);
       config.put("mode", mode);
-      config.put("projectMetadataURL", wiseBaseURL + "/metadata.html");
+      config.put("projectMetadataURL", contextPath + "/metadata.html");
       String curriculumBaseWWW = wiseProperties.getProperty("curriculum_base_www");
       String rawProjectUrl = project.getModulePath();
       String projectURL = curriculumBaseWWW + rawProjectUrl;
@@ -532,9 +531,9 @@ private void addCommonConfigParametersWISE4(
       addProjectBaseURL(config, projectURL);
       config.put("studentUploadsBaseURL",  wiseProperties.getProperty("studentuploads_base_www"));
       config.put("theme", "WISE");
-      config.put("cRaterRequestURL", wiseBaseURL + "/cRater");
+      config.put("cRaterRequestURL", contextPath + "/cRater");
       config.put("mainHomePageURL", contextPath);
-      config.put("renewSessionURL", wiseBaseURL + "/session/renew");
+      config.put("renewSessionURL", contextPath + "/session/renew");
       config.put("sessionLogOutURL", contextPath + "/logout");
       addStep(request, config);
       setUserLocale(request, signedInUser, config);
@@ -555,8 +554,8 @@ private void addStep(HttpServletRequest request, JSONObject config) throws JSONE
     }
   }
 
-  private String getPortfolioURL(String runId, String wiseBaseURL, Long periodId, Long workgroupId) {
-    String portfolioURL = wiseBaseURL + "/portfolio?runId=" + runId;
+  private String getPortfolioURL(String runId, String contextPath, Long periodId, Long workgroupId) {
+    String portfolioURL = contextPath + "/portfolio?runId=" + runId;
     if (periodId != null) {
       portfolioURL += "&periodId=" + periodId;
     }
@@ -566,8 +565,8 @@ private String getPortfolioURL(String runId, String wiseBaseURL, Long periodId,
     return portfolioURL;
   }
 
-  private String getIdeaBasketURL(String runId, String wiseBaseURL, Run run, Long periodId, Long workgroupId) {
-    String ideaBasketURL = wiseBaseURL + "/ideaBasket?runId=" + runId + "&projectId=" + run.getProject().getId().toString();
+  private String getIdeaBasketURL(String runId, String contextPath, Run run, Long periodId, Long workgroupId) {
+    String ideaBasketURL = contextPath + "/ideaBasket?runId=" + runId + "&projectId=" + run.getProject().getId().toString();
     if (periodId != null) {
       ideaBasketURL += "&periodId=" + periodId;
     }
@@ -585,11 +584,11 @@ private String getIdeaBasketURL(String runId, String wiseBaseURL, Run run, Long
    * e.g.
    * ws://localhost:8080/wise
    */
-  private String getWebSocketURL(HttpServletRequest request, String wiseBaseURL) {
+  private String getWebSocketURL(HttpServletRequest request, String contextPath) {
     String webSocketBaseURL = wiseProperties.getProperty("webSocketBaseUrl");
     if (webSocketBaseURL == null) {
-      if (wiseBaseURL.contains("http")) {
-        webSocketBaseURL = wiseBaseURL.replace("http", "ws");
+      if (contextPath.contains("http")) {
+        webSocketBaseURL = contextPath.replace("http", "ws");
       } else {
         String portalContextPath = ControllerUtil.getPortalUrlString(request);
         webSocketBaseURL = portalContextPath.replace("http", "ws");
@@ -664,26 +663,26 @@ private void setUserLocale(HttpServletRequest request, User signedInUser, JSONOb
 
   private void getRunConfigParameters(HttpServletRequest request, JSONObject config, Run run)
     throws JSONException, ObjectNotFoundException {
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+    String contextPath = request.getContextPath();
     Long runId = run.getId();
-    String annotationsURL = wiseBaseURL + "/annotation?type=annotation&runId=" + runId;
-    String studentStatusURL = wiseBaseURL + "/studentStatus";
-    String runStatusURL = wiseBaseURL + "/runStatus";
+    String annotationsURL = contextPath + "/annotation?type=annotation&runId=" + runId;
+    String studentStatusURL = contextPath + "/studentStatus";
+    String runStatusURL = contextPath + "/runStatus";
 
     config.put("runName", run.getName());
     config.put("runId", runId);
     config.put("annotationsURL", annotationsURL);
     config.put("runInfo", run.getInfo());
     config.put("isRealTimeEnabled", run.isRealTimeEnabled());
-    config.put("webSocketURL", getWebSocketURL(request, wiseBaseURL));
+    config.put("webSocketURL", getWebSocketURL(request, contextPath));
     config.put("studentStatusURL", studentStatusURL);
     config.put("runStatusURL", runStatusURL);
     config.put("userInfo", getUserInfo(run));
-    config.put("studentDataURL", wiseBaseURL + "/student/data");  // the url to get/post student data
-    config.put("studentAssetsURL", wiseBaseURL + "/student/asset/" + runId);
-    config.put("studentNotebookURL", wiseBaseURL + "/student/notebook/" + runId);
-    config.put("achievementURL", wiseBaseURL + "/achievement/" + runId);
-    config.put("notificationURL", wiseBaseURL + "/notification/" + runId);
+    config.put("studentDataURL", contextPath + "/student/data");  // the url to get/post student data
+    config.put("studentAssetsURL", contextPath + "/student/asset/" + runId);
+    config.put("studentNotebookURL", contextPath + "/student/notebook/" + runId);
+    config.put("achievementURL", contextPath + "/achievement/" + runId);
+    config.put("notificationURL", contextPath + "/notification/" + runId);
     String openCPUURL = wiseProperties.getProperty("openCPUURL");
     if (openCPUURL != null) {
       config.put("openCPUURL", openCPUURL);
@@ -729,21 +728,19 @@ private void addCommonConfigParameters(
     String curriculumBaseWWW = wiseProperties.getProperty("curriculum_base_www");
     String projectURL = curriculumBaseWWW + rawProjectUrl;
 
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
-    config.put("wiseBaseURL", wiseBaseURL);
+    String contextPath = request.getContextPath();
+    config.put("wiseBaseURL", contextPath);
     config.put("projectId", project.getId());
     config.put("parentProjectId", project.getParentProjectId());
-    config.put("previewProjectURL", wiseBaseURL + "/project/" + project.getId());
+    config.put("previewProjectURL", contextPath + "/project/" + project.getId());
     config.put("theme", "WISE");
     config.put("projectURL", projectURL);
     addProjectBaseURL(config, projectURL);
     config.put("studentUploadsBaseURL", wiseProperties.getProperty("studentuploads_base_www"));
-    config.put("cRaterRequestURL", wiseBaseURL + "/cRater");
-
-    String contextPath = request.getContextPath();  //get the context path e.g. /wise
+    config.put("cRaterRequestURL", contextPath + "/cRater");
     config.put("contextPath", contextPath);
     config.put("mainHomePageURL", contextPath);
-    config.put("renewSessionURL", wiseBaseURL + "/session/renew");
+    config.put("renewSessionURL", contextPath + "/session/renew");
     config.put("sessionLogOutURL", contextPath + "/logout");
 
     User signedInUser = ControllerUtil.getSignedInUser();
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/StatisticsController.java b/src/main/java/org/wise/portal/presentation/web/controllers/StatisticsController.java
index 8562b2ef5b..5725db22ac 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/StatisticsController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/StatisticsController.java
@@ -118,10 +118,6 @@ protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpSer
       return null;
     } else {
       ModelAndView modelAndView = new ModelAndView();
-
-      //add the wise base url to the model so the jsp can access it
-      modelAndView.addObject("wiseBaseURL", wiseProperties.getProperty("wiseBaseURL"));
-
       return modelAndView;
     }
   }
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/VLEController.java b/src/main/java/org/wise/portal/presentation/web/controllers/VLEController.java
index 5add832f93..b9763b4cc5 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/VLEController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/VLEController.java
@@ -23,11 +23,6 @@
  */
 package org.wise.portal.presentation.web.controllers;
 
-import java.util.Properties;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
@@ -37,8 +32,12 @@
 import org.springframework.web.servlet.ModelAndView;
 import org.wise.portal.dao.ObjectNotFoundException;
 import org.wise.portal.domain.run.Run;
-import org.wise.portal.service.run.RunService;
 import org.wise.portal.service.project.ProjectService;
+import org.wise.portal.service.run.RunService;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.Properties;
 
 /**
  * Controller for handling student VLE-portal interactions.
@@ -63,13 +62,13 @@ protected ModelAndView launchVLEWISE4Run(HttpServletRequest request, HttpServlet
       throws Exception {
     String runIdString = request.getParameter("runId");
     Run run = runService.retrieveById(Long.parseLong(runIdString));
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+    String contextPath = request.getContextPath();
 
     ModelAndView modelAndView = new ModelAndView("vle");
     modelAndView.addObject("run", run);
-    modelAndView.addObject("vleurl", wiseBaseURL + "/vle/vle.html");
+    modelAndView.addObject("vleurl", contextPath + "/vle/vle.html");
     modelAndView.addObject("vleConfigUrl",
-        wiseBaseURL + "/vleconfig?runId=" + run.getId() + "&mode=run");
+      contextPath + "/vleconfig?runId=" + run.getId() + "&mode=run");
     String curriculumBaseWWW = wiseProperties.getProperty("curriculum_base_www");
     String rawProjectUrl = run.getProject().getModulePath();
     String contentUrl = curriculumBaseWWW + rawProjectUrl;
@@ -78,20 +77,20 @@ protected ModelAndView launchVLEWISE4Run(HttpServletRequest request, HttpServlet
   }
 
   @RequestMapping(value = "/student/run/{runId}")
-  protected String launchVLEWISE5Run(@PathVariable Long runId, ModelMap modelMap) {
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
-    modelMap.put("configURL", wiseBaseURL + "/config/studentRun/" + runId);
+  protected String launchVLEWISE5Run(HttpServletRequest request, @PathVariable Long runId, ModelMap modelMap) {
+    String contextPath = request.getContextPath();
+    modelMap.put("configURL", contextPath + "/config/studentRun/" + runId);
     return "student";
   }
 
   @RequestMapping(value = "/project/{projectId}", method = RequestMethod.GET)
-  protected String launchVLEWISE5Preview(@PathVariable String projectId, ModelMap modelMap) {
+  protected String launchVLEWISE5Preview(HttpServletRequest request, @PathVariable String projectId, ModelMap modelMap) {
     try {
       if (!"demo".equals(projectId)) {
         projectService.getById(Long.parseLong(projectId));
       }
-      String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
-      modelMap.put("configURL", wiseBaseURL + "/config/preview/" + projectId);
+      String contextPath = request.getContextPath();
+      modelMap.put("configURL", contextPath + "/config/preview/" + projectId);
       return "student";
     } catch (ObjectNotFoundException onfe) {
       onfe.printStackTrace();
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/admin/FindProjectRunsController.java b/src/main/java/org/wise/portal/presentation/web/controllers/admin/FindProjectRunsController.java
index 5e99b6bfd0..b5d15079d4 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/admin/FindProjectRunsController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/admin/FindProjectRunsController.java
@@ -31,8 +31,10 @@
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
+import org.springframework.ui.ModelMap;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.servlet.ModelAndView;
 import org.wise.portal.dao.ObjectNotFoundException;
 import org.wise.portal.domain.project.Project;
@@ -43,15 +45,13 @@
 import org.wise.portal.service.user.UserService;
 
 /**
- * Controller to find project runs for admin users
+ * Controller for admins to find project runs
  * @author Patrick Lawler
  */
 @Controller
 @RequestMapping("/admin/run/manageprojectruns.html")
 public class FindProjectRunsController {
 
-  private final static String VIEW = "admin/run/manageprojectruns";
-
   @Autowired
   private RunService runService;
 
@@ -64,41 +64,29 @@ public class FindProjectRunsController {
   @Autowired
   private Properties wiseProperties;
 
-  @RequestMapping(method=RequestMethod.GET)
-  protected ModelAndView handleGET(
-    HttpServletRequest request) {
-
-    ModelAndView modelAndView = new ModelAndView();
+  @RequestMapping(method = RequestMethod.GET)
+  protected String findRun(
+      @RequestParam(value = "runLookupType", required = true) String runLookupType,
+      @RequestParam(value = "runLookupValue", required = true) String runLookupValue,
+      ModelMap modelMap) {
     List<Run> runList = new ArrayList<Run>();
-
-    // check if runLookupType was passed in, can be ["runId","projectId","teacherUsername"]
-    String runLookupType = request.getParameter("runLookupType");
-    String runLookupValue = request.getParameter("runLookupValue");
-
-    if (runLookupType != null && runLookupValue != null) {
-      if ("runId".equals(runLookupType)) {
-        runList = this.getRunListByRunId(Long.parseLong(runLookupValue));
-      } else if ("projectId".equals(runLookupType)) {
-        runList = this.getRunListByProjectId(Long.parseLong(runLookupValue));
-      } else if ("teacherUsername".equals(runLookupType)) {
-        runList = this.getRunListByUsername(runLookupValue);
-      } else if ("runTitle".equals(runLookupType)) {
-        runList = this.getRunListByRunTitle(runLookupValue);
-      }
+    if ("runId".equals(runLookupType)) {
+      runList = this.getRunListByRunId(Long.parseLong(runLookupValue));
+    } else if ("projectId".equals(runLookupType)) {
+      runList = this.getRunListByProjectId(Long.parseLong(runLookupValue));
+    } else if ("teacherUsername".equals(runLookupType)) {
+      runList = this.getRunListByUsername(runLookupValue);
+    } else if ("runTitle".equals(runLookupType)) {
+      runList = this.getRunListByRunTitle(runLookupValue);
     }
-
-    modelAndView = new ModelAndView(VIEW);
-    modelAndView.addObject("runList", runList);
-
-    String isRealTimeEnabledStr = wiseProperties.getProperty("isRealTimeEnabled", "false");
-    modelAndView.addObject("isRealTimeEnabled", Boolean.valueOf(isRealTimeEnabledStr));
-
-    return modelAndView;
+    modelMap.put("runList", runList);
+    return "admin/run/manageprojectruns";
   }
 
   /**
    * Returns a <code>List<Run></code> list of any runs that are
-   * associated with the given <code>Long</code> project id.
+   * associated with the given <code>Long</code> project id, including runs that were made
+   * using copies of the project
    *
    * @param projectId
    * @return List<Run> - list of runs associated with the projectId
@@ -147,17 +135,14 @@ private List<Run> getRunListByUsername(String username) {
    */
   private List<Run> getRunListByRunId(Long runId) {
     List<Run> runList = new ArrayList<Run>();
-
     try {
       Run run = this.runService.retrieveById(runId);
-
       if (run != null) {
         runList.add(run);
       }
     } catch(ObjectNotFoundException e) {
       e.printStackTrace();
     }
-
     return runList;
   }
 
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/admin/UserInfoController.java b/src/main/java/org/wise/portal/presentation/web/controllers/admin/UserInfoController.java
index 322f62328a..b6859b326e 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/admin/UserInfoController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/admin/UserInfoController.java
@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2007-2017 Regents of the University of California (Regents).
+ * Copyright (c) 2007-2018 Regents of the University of California (Regents).
  * Created by WISE, Graduate School of Education, University of California, Berkeley.
  *
  * This software is distributed under the GNU General Public License, v3,
@@ -30,6 +30,7 @@
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
+import org.springframework.ui.ModelMap;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.servlet.ModelAndView;
@@ -43,7 +44,8 @@
 import org.wise.portal.service.user.UserService;
 
 /**
- * Controller for displaying user information
+ * Controller for displaying user information to admin users
+ * and student information to their teachers
  * @author Sally Ahn
  */
 @Controller
@@ -61,34 +63,29 @@ public class UserInfoController {
   protected final static String USER_INFO_MAP = "userInfoMap";
 
   @RequestMapping(value = {"/student/account/info", "/teacher/account/info"})
-  protected ModelAndView handleGetUserAccountInfo(
-      @RequestParam("userName") String userName) throws Exception {
+  protected String getUserAccountInfo(
+      @RequestParam("userName") String userName,
+      ModelMap modelMap) throws Exception {
     User signedInUser = ControllerUtil.getSignedInUser();
-    User infoUser = this.userService.retrieveUserByUsername(userName);
+    User user = this.userService.retrieveUserByUsername(userName);
 
     if (signedInUser.isAdmin() ||
-      this.studentService.isStudentAssociatedWithTeacher(infoUser, signedInUser)) {
-      MutableUserDetails userDetails = (MutableUserDetails) infoUser.getUserDetails();
-      ModelAndView modelAndView = new ModelAndView();
-
+        this.studentService.isStudentAssociatedWithTeacher(user, signedInUser)) {
+      MutableUserDetails userDetails = (MutableUserDetails) user.getUserDetails();
       HashMap<String, Object> userInfoMap = userDetails.getInfo();
-      userInfoMap.put("ID", infoUser.getId());
-      modelAndView.addObject(USER_INFO_MAP, userInfoMap);
-
-      if (infoUser.getUserDetails().hasGrantedAuthority(UserDetailsService.STUDENT_ROLE)) {
-        modelAndView.addObject("isStudent", true);
-        List<Run> runList = runService.getRunList(infoUser);
-        modelAndView.addObject("runList", runList);
-        modelAndView.setViewName("student/account/info");
+      userInfoMap.put("ID", user.getId());
+      modelMap.put(USER_INFO_MAP, userInfoMap);
+      if (user.getUserDetails().hasGrantedAuthority(UserDetailsService.STUDENT_ROLE)) {
+        modelMap.put("isStudent", true);
+        modelMap.put("runList", runService.getRunList(user));
+        return "student/account/info";
       } else {
-        modelAndView.addObject("isStudent", false);
-        List<Run> runListByOwner = runService.getRunListByOwner(infoUser);
-        modelAndView.addObject("runList", runListByOwner);
-        modelAndView.setViewName("teacher/account/info");
+        modelMap.put("isStudent", false);
+        modelMap.put("runList", runService.getRunListByOwner(user));
+        return "teacher/account/info";
       }
-      return modelAndView;
     } else {
-      return new ModelAndView("errors/accessdenied");
+      return "errors/accessdenied";
     }
   }
 }
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/admin/ViewAllUsersController.java b/src/main/java/org/wise/portal/presentation/web/controllers/admin/ViewAllUsersController.java
index 947dd6fd81..05682e33ec 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/admin/ViewAllUsersController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/admin/ViewAllUsersController.java
@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2007-2015 Regents of the University of California (Regents).
+ * Copyright (c) 2007-2018 Regents of the University of California (Regents).
  * Created by WISE, Graduate School of Education, University of California, Berkeley.
  *
  * This software is distributed under the GNU General Public License, v3,
@@ -30,7 +30,6 @@
 import java.util.List;
 
 import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
@@ -61,8 +60,6 @@ public class ViewAllUsersController{
   @Autowired
   private DailyAdminJob adminJob;
 
-  protected static final String VIEW_NAME = "admin/account/manageusers";
-
   protected static final String TEACHERS = "teachers";
 
   protected static final String STUDENTS = "students";
@@ -81,26 +78,19 @@ public class ViewAllUsersController{
 
   private static final String LOGGED_IN_TEACHER_USERNAMES = "loggedInTeacherUsernames";
 
-  /**
-   * @see org.springframework.web.servlet.mvc.AbstractController#handleRequestInternal(javax.servlet.http.HttpServletRequest,
-   *      javax.servlet.http.HttpServletResponse)
-   */
   @RequestMapping(method = RequestMethod.GET)
   @SuppressWarnings("unchecked")
-  protected String handleRequestInternal(
-    HttpServletRequest servletRequest,
-    ModelMap modelMap) throws Exception {
-
-    String onlyShowLoggedInUser = servletRequest.getParameter("onlyShowLoggedInUser");
-    String onlyShowUsersWhoLoggedIn = servletRequest.getParameter("onlyShowUsersWhoLoggedIn");
+  protected String showUsers(HttpServletRequest request, ModelMap modelMap) throws Exception {
+    String onlyShowLoggedInUser = request.getParameter("onlyShowLoggedInUser");
+    String onlyShowUsersWhoLoggedIn = request.getParameter("onlyShowUsersWhoLoggedIn");
     if (onlyShowLoggedInUser != null && onlyShowLoggedInUser.equals("true")) {
       // get logged in users from servlet context
       HashMap<String, User> allLoggedInUsers =
-        (HashMap<String, User>) servletRequest.getSession()
+        (HashMap<String, User>) request.getSession()
           .getServletContext().getAttribute(WISESessionListener.ALL_LOGGED_IN_USERS);
 
       HashMap<String, Long> studentsToRunIds =
-        (HashMap<String, Long>) servletRequest.getSession()
+        (HashMap<String, Long>) request.getSession()
           .getServletContext().getAttribute("studentsToRunIds");
 
       ArrayList<Object> loggedInStudent = new ArrayList<Object>();
@@ -166,20 +156,18 @@ protected String handleRequestInternal(
       modelMap.put("teachersWhoLoggedInSince", teachersWhoLoggedInSince);
     } else {
       // result depends on passed-in userType parameter
-      String userType = servletRequest.getParameter(USER_TYPE);
+      String userType = request.getParameter(USER_TYPE);
       if (userType == null) {
         List<String> allUsernames = this.userService.retrieveAllUsernames();
         modelMap.put(USERNAMES, allUsernames);
       } else if (userType.equals(STUDENT)) {
-
         List<String> usernames = this.userDetailsService.retrieveAllUsernames(StudentUserDetails.class.getName());
         modelMap.put(STUDENTS, usernames);
       } else if (userType.equals(TEACHER)) {
         List<String> usernames = this.userDetailsService.retrieveAllUsernames(TeacherUserDetails.class.getName());
-
         modelMap.put(TEACHERS, usernames);
       }
     }
-    return VIEW_NAME;
+    return "admin/account/manageusers";
   }
 }
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/author/project/AuthorProjectController.java b/src/main/java/org/wise/portal/presentation/web/controllers/author/project/AuthorProjectController.java
index fbe1dc5f11..e1562093ae 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/author/project/AuthorProjectController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/author/project/AuthorProjectController.java
@@ -23,22 +23,6 @@
  */
 package org.wise.portal.presentation.web.controllers.author.project;
 
-import java.io.File;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
-
-import javax.servlet.ServletContext;
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
-
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -77,6 +61,15 @@
 import org.wise.vle.web.AssetManager;
 import org.wise.vle.web.SecurityUtils;
 
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.File;
+import java.io.IOException;
+import java.util.*;
+
 /**
  * Controller for users with author privileges to author WISE4 projects
  *
@@ -812,10 +805,10 @@ protected ModelAndView handleConvertRequestInternal(
    */
   private ModelAndView handleLaunchAuthoring(HttpServletRequest request) {
     User author = ControllerUtil.getSignedInUser();
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+    String contextPath = request.getContextPath();
 
-    String vleUrl = wiseBaseURL + "/vle/author.html";
-    String portalAuthorUrl = wiseBaseURL + "/author/authorproject.html";
+    String vleUrl = contextPath + "/vle/author.html";
+    String portalAuthorUrl = contextPath + "/author/authorproject.html";
     String command = request.getParameter("param1");
 
     String projectIdStr = request.getParameter(PROJECT_ID_PARAM_NAME);
@@ -1469,32 +1462,29 @@ private ModelAndView handleGetConfig(HttpServletRequest request, HttpServletResp
     //get the username
     String username = user.getUserDetails().getUsername();
 
-    //get the wise base url
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
-
     //get the context path e.g. /wise
     String contextPath = request.getContextPath();
 
     //get the url to get and post metadata
-    String projectMetadataURL = wiseBaseURL + "/metadata.html";
+    String projectMetadataURL = contextPath + "/metadata.html";
 
     //get the url to make CRater requests
-    String cRaterRequestURL = wiseBaseURL + "/cRater";
+    String cRaterRequestURL = contextPath + "/cRater";
 
     //get the curriculum_base_www variable from the wise.properties file
     String curriculumBaseUrl = wiseProperties.getProperty("curriculum_base_www");
 
     //get the url to preview project
-    String previewProjectUrl = wiseBaseURL + "/previewproject.html";
+    String previewProjectUrl = contextPath + "/previewproject.html";
 
     //get the url to make CRater requests
-    String deleteProjectUrl = wiseBaseURL + "/teacher/projects/deleteproject.html";
+    String deleteProjectUrl = contextPath + "/teacher/projects/deleteproject.html";
 
     //get the url to make analyze project requests
-    String analyzeProjectUrl = wiseBaseURL + "/teacher/projects/analyzeproject.html";
+    String analyzeProjectUrl = contextPath + "/teacher/projects/analyzeproject.html";
 
     //the get/post url for premade comments
-    String premadeCommentsURL = wiseBaseURL + "/teacher/grading/premadeComments.html";
+    String premadeCommentsURL = contextPath + "/teacher/grading/premadeComments.html";
 
     //create a JSONObject to contain the config params
     JSONObject config = new JSONObject();
@@ -1504,7 +1494,7 @@ private ModelAndView handleGetConfig(HttpServletRequest request, HttpServletResp
       config.put("username", username);
       config.put("projectMetadataURL", projectMetadataURL);
       config.put("curriculumBaseUrl", curriculumBaseUrl);
-      config.put("indexURL", wiseBaseURL + WISEAuthenticationProcessingFilter.TEACHER_DEFAULT_TARGET_PATH);
+      config.put("indexURL", contextPath + WISEAuthenticationProcessingFilter.TEACHER_DEFAULT_TARGET_PATH);
       int maxInactiveInterval = request.getSession().getMaxInactiveInterval() * 1000;
       config.put("sessionTimeoutInterval", maxInactiveInterval);      // add sessiontimeout interval, in milleseconds
       int sessionTimeoutCheckInterval = maxInactiveInterval / 20;         // check 20 times during the session.
@@ -1519,7 +1509,7 @@ private ModelAndView handleGetConfig(HttpServletRequest request, HttpServletResp
       config.put("deleteProjectUrl", deleteProjectUrl);
       config.put("analyzeProjectUrl", analyzeProjectUrl);
       config.put("premadeCommentsURL", premadeCommentsURL);
-      config.put("wiseBaseURL", wiseBaseURL);
+      config.put("wiseBaseURL", contextPath);
       config.put("contextPath", contextPath);
 
       // if projectId provided, this is a request for preview
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/author/project/WISE5AuthorProjectController.java b/src/main/java/org/wise/portal/presentation/web/controllers/author/project/WISE5AuthorProjectController.java
index ea91bbaac1..44922ea77c 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/author/project/WISE5AuthorProjectController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/author/project/WISE5AuthorProjectController.java
@@ -116,8 +116,8 @@ protected String authorProject(HttpServletRequest request, HttpServletResponse r
       // do nothing
     }
 
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
-    modelMap.put("configURL", wiseBaseURL + "/authorConfig");
+    String contextPath = request.getContextPath();
+    modelMap.put("configURL", contextPath + "/authorConfig");
     return "author";
   }
 
@@ -343,7 +343,7 @@ protected void getAuthorProjectConfig(HttpServletRequest request, HttpServletRes
 
     JSONObject config = getDefaultAuthoringConfigJsonObject(request);
     try {
-      String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+      String contextPath = request.getContextPath();
       String curriculumBaseWWW = wiseProperties.getProperty("curriculum_base_www");
       String rawProjectUrl = project.getModulePath();
       String projectURL = curriculumBaseWWW + rawProjectUrl;
@@ -358,16 +358,16 @@ protected void getAuthorProjectConfig(HttpServletRequest request, HttpServletRes
       config.put("projectId", projectId);
       config.put("projectURL", projectURL);
       config.put("projectAssetTotalSizeMax", projectAssetTotalSizeMax);
-      config.put("projectAssetURL", wiseBaseURL + "/project/asset/" + projectId);
+      config.put("projectAssetURL", contextPath + "/project/asset/" + projectId);
       config.put("projectBaseURL", projectBaseURL);
-      config.put("previewProjectURL", wiseBaseURL + "/project/" + projectId);
-      config.put("cRaterRequestURL", wiseBaseURL + "/cRater");
-      config.put("importStepsURL", wiseBaseURL + "/project/importSteps/" + projectId);
+      config.put("previewProjectURL", contextPath + "/project/" + projectId);
+      config.put("cRaterRequestURL", contextPath + "/cRater");
+      config.put("importStepsURL", contextPath + "/project/importSteps/" + projectId);
       config.put("mode", "author");
 
       if (projectService.canAuthorProject(project, ControllerUtil.getSignedInUser())) {
-        config.put("saveProjectURL", wiseBaseURL + "/project/save/" + projectId);
-        config.put("commitProjectURL", wiseBaseURL + "/project/commit/" + projectId);
+        config.put("saveProjectURL", contextPath + "/project/save/" + projectId);
+        config.put("commitProjectURL", contextPath + "/project/commit/" + projectId);
       }
 
       Long runId = this.getRunId(projectId);
@@ -390,18 +390,17 @@ private JSONObject getDefaultAuthoringConfigJsonObject(HttpServletRequest reques
     User user = ControllerUtil.getSignedInUser();
     try {
       String contextPath = request.getContextPath();
-      String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
       config.put("contextPath", contextPath);
-      config.put("copyProjectURL", wiseBaseURL + "/project/copy");
-      config.put("mainHomePageURL", wiseBaseURL);
-      config.put("renewSessionURL", wiseBaseURL + "/session/renew");
-      config.put("sessionLogOutURL", wiseBaseURL + "/logout");
-      config.put("registerNewProjectURL", wiseBaseURL + "/project/new");
-      config.put("wiseBaseURL", wiseBaseURL);
-      config.put("notifyProjectBeginURL", wiseBaseURL + "/project/notifyAuthorBegin/");
-      config.put("notifyProjectEndURL", wiseBaseURL + "/project/notifyAuthorEnd/");
-      config.put("getLibraryProjectsURL", wiseBaseURL + "/author/authorproject.html?command=projectList&projectPaths=&projectTag=library&wiseVersion=5");
-      config.put("teacherDataURL", wiseBaseURL + "/teacher/data");
+      config.put("copyProjectURL", contextPath + "/project/copy");
+      config.put("mainHomePageURL", contextPath);
+      config.put("renewSessionURL", contextPath + "/session/renew");
+      config.put("sessionLogOutURL", contextPath + "/logout");
+      config.put("registerNewProjectURL", contextPath + "/project/new");
+      config.put("wiseBaseURL", contextPath);
+      config.put("notifyProjectBeginURL", contextPath + "/project/notifyAuthorBegin/");
+      config.put("notifyProjectEndURL", contextPath + "/project/notifyAuthorEnd/");
+      config.put("getLibraryProjectsURL", contextPath + "/author/authorproject.html?command=projectList&projectPaths=&projectTag=library&wiseVersion=5");
+      config.put("teacherDataURL", contextPath + "/teacher/data");
 
       String projectMetadataSettings = null;
       try {
@@ -503,8 +502,8 @@ private JSONObject getDefaultAuthoringConfigJsonObject(HttpServletRequest reques
          * e.g.
          * ws://localhost:8080/wise
          */
-        if (wiseBaseURL.contains("http")) {
-          webSocketBaseURL = wiseBaseURL.replace("http", "ws");
+        if (contextPath.contains("http")) {
+          webSocketBaseURL = contextPath.replace("http", "ws");
         } else {
           String portalContextPath = ControllerUtil.getPortalUrlString(request);
           webSocketBaseURL = portalContextPath.replace("http", "ws");
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/forgotaccount/teacher/ForgotAccountTeacherIndexController.java b/src/main/java/org/wise/portal/presentation/web/controllers/forgotaccount/teacher/ForgotAccountTeacherIndexController.java
index f2aa62d359..fb13ecf0e8 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/forgotaccount/teacher/ForgotAccountTeacherIndexController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/forgotaccount/teacher/ForgotAccountTeacherIndexController.java
@@ -23,14 +23,6 @@
  */
 package org.wise.portal.presentation.web.controllers.forgotaccount.teacher;
 
-import java.util.Date;
-import java.util.List;
-import java.util.Locale;
-import java.util.Properties;
-import java.util.regex.Pattern;
-
-import javax.servlet.http.HttpServletRequest;
-
 import org.apache.commons.lang3.RandomStringUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -38,7 +30,6 @@
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.ui.ModelMap;
-import org.springframework.validation.Errors;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
@@ -49,6 +40,13 @@
 import org.wise.portal.service.mail.MailService;
 import org.wise.portal.service.user.UserService;
 
+import javax.servlet.http.HttpServletRequest;
+import java.util.Date;
+import java.util.List;
+import java.util.Locale;
+import java.util.Properties;
+import java.util.regex.Pattern;
+
 /**
  * Controller for lost password teacher username and email lookup
  *
@@ -171,13 +169,13 @@ protected String onSubmit(@ModelAttribute("userDetails") TeacherUserDetails user
        * e.g.
        * http://wise4.berkeley.edu/wise/forgotaccount/resetpassword.html?k=1234567890abc
        */
-      String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+      String contextPath = request.getContextPath();
       String portalContextURL = "";
-      if (wiseBaseURL.startsWith("http")) {
-        // in case wiseBaseURL is absolute, in the form "http://xyz:8080/wise"
-        portalContextURL = wiseBaseURL;
+      if (contextPath.startsWith("http")) {
+        // in case contextPath is absolute, in the form "http://xyz:8080/wise"
+        portalContextURL = contextPath;
       } else {
-        // in case wiseBaseURL is relative, in the form "/wise"
+        // in case contextPath is relative, in the form "/wise"
         portalContextURL = ControllerUtil.getPortalUrlString(request);
       }
       String passwordResetLink = portalContextURL + "/forgotaccount/resetpassword.html?k=" + randomAlphanumeric;
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/student/StartProjectController.java b/src/main/java/org/wise/portal/presentation/web/controllers/student/StartProjectController.java
index 7450a91ebe..87938c6124 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/student/StartProjectController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/student/StartProjectController.java
@@ -23,17 +23,6 @@
  */
 package org.wise.portal.presentation.web.controllers.student;
 
-import java.util.Date;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Properties;
-import java.util.Set;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
-
 import org.hibernate.StaleObjectStateException;
 import org.json.JSONArray;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -47,10 +36,15 @@
 import org.wise.portal.domain.workgroup.Workgroup;
 import org.wise.portal.presentation.web.controllers.ControllerUtil;
 import org.wise.portal.service.attendance.StudentAttendanceService;
-import org.wise.portal.service.run.RunService;
 import org.wise.portal.service.project.ProjectService;
+import org.wise.portal.service.run.RunService;
 import org.wise.portal.service.workgroup.WorkgroupService;
 
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.util.*;
+
 /**
  * Controller to allow students to launch the VLE using the project.
  * This link is *always* used to start the project for students, whether:
@@ -170,7 +164,7 @@ protected synchronized ModelAndView handleRequestInternal(
         // create a student attendance entry
         addStudentAttendanceEntry(workgroupId, runId, presentUserIds, absentUserIds);
 
-        return projectService.launchProject(workgroup);
+        return projectService.launchProject(workgroup, request.getContextPath());
       } else {
         // need to create a workgroup for this user, take them to create workgroup wizard
         ModelAndView modelAndView = new ModelAndView(SELECT_TEAM_URL);
@@ -219,7 +213,7 @@ protected synchronized ModelAndView handleRequestInternal(
 
         // update servlet session
         notifyServletSession(request, run);
-        return projectService.launchProject(workgroup);
+        return projectService.launchProject(workgroup, request.getContextPath());
       } else {
         ModelAndView modelAndView = new ModelAndView(TEAM_SIGN_IN_URL);
         modelAndView.addObject("runId", runId);
@@ -264,7 +258,7 @@ protected synchronized ModelAndView handleRequestInternal(
 
         // update servlet session
         notifyServletSession(request, run);
-        return projectService.launchProject(workgroup);
+        return projectService.launchProject(workgroup, request.getContextPath());
       } else {
         ModelAndView modelAndView = new ModelAndView(TEAM_SIGN_IN_URL);
         modelAndView.addObject("runId", runId);
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/student/TeamSignInController.java b/src/main/java/org/wise/portal/presentation/web/controllers/student/TeamSignInController.java
index 88ab7406de..dbe746cb07 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/student/TeamSignInController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/student/TeamSignInController.java
@@ -23,17 +23,6 @@
  */
 package org.wise.portal.presentation.web.controllers.student;
 
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Properties;
-import java.util.Set;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
 import org.hibernate.StaleObjectStateException;
 import org.json.JSONArray;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -57,12 +46,16 @@
 import org.wise.portal.presentation.web.controllers.ControllerUtil;
 import org.wise.portal.service.attendance.StudentAttendanceService;
 import org.wise.portal.service.group.GroupService;
-import org.wise.portal.service.run.RunService;
 import org.wise.portal.service.project.ProjectService;
+import org.wise.portal.service.run.RunService;
 import org.wise.portal.service.student.StudentService;
 import org.wise.portal.service.user.UserService;
 import org.wise.portal.service.workgroup.WorkgroupService;
 
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.*;
+
 /**
  * Controller for handling team sign-ins before students start the project. The first user
  * entered in the form must be already signed-in and associated with a specific
@@ -333,7 +326,7 @@ protected synchronized String onSubmit(@ModelAttribute("teamSignInForm") TeamSig
     }
 
     StartProjectController.notifyServletSession(request, run);
-    ModelAndView modelAndView = projectService.launchProject(workgroup);
+    ModelAndView modelAndView = projectService.launchProject(workgroup, request.getContextPath());
 
     // clear the command object from the session
     status.setComplete();
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/teacher/TeacherAccountController.java b/src/main/java/org/wise/portal/presentation/web/controllers/teacher/TeacherAccountController.java
index e8fafe6c22..5b229aab86 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/teacher/TeacherAccountController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/teacher/TeacherAccountController.java
@@ -23,13 +23,6 @@
  */
 package org.wise.portal.presentation.web.controllers.teacher;
 
-import java.util.Calendar;
-import java.util.Locale;
-import java.util.Properties;
-
-import javax.mail.MessagingException;
-import javax.servlet.http.HttpServletRequest;
-
 import org.apache.commons.lang3.ArrayUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.MessageSource;
@@ -55,6 +48,12 @@
 import org.wise.portal.service.mail.IMailFacade;
 import org.wise.portal.service.user.UserService;
 
+import javax.mail.MessagingException;
+import javax.servlet.http.HttpServletRequest;
+import java.util.Calendar;
+import java.util.Locale;
+import java.util.Properties;
+
 /**
  * Controller for creating and updating WISE teacher accounts
  *
@@ -171,7 +170,7 @@ protected String createNewTeacher(
       userDetails.setDisplayname(userDetails.getFirstname() + " " + userDetails.getLastname());
       userDetails.setEmailValid(true);
       User createdUser = this.userService.createUser(userDetails);
-      NewAccountEmailService newAccountEmailService = new NewAccountEmailService(createdUser, request.getLocale());
+      NewAccountEmailService newAccountEmailService = new NewAccountEmailService(createdUser, request.getLocale(), request);
       Thread thread = new Thread(newAccountEmailService);
       thread.start();
       modelMap.addAttribute("username", userDetails.getUsername());
@@ -310,10 +309,12 @@ public boolean isOnRegisterNewTeacherPage(HttpServletRequest request) {
   class NewAccountEmailService implements Runnable {
     private User newUser;
     private Locale locale;
+    private HttpServletRequest request;
 
-    public NewAccountEmailService(User newUser, Locale locale) {
+    public NewAccountEmailService(User newUser, Locale locale, HttpServletRequest request) {
       this.newUser = newUser;
       this.locale = locale;
+      this.request = request;
     }
 
     public void run() {
@@ -322,14 +323,14 @@ public void run() {
       if (!sendEmailEnabled) {
         return;
       } else {
-        this.sendEmail();
+        this.sendEmail(this.request);
       }
     }
 
     /**
      * Sends a welcome email to the new user with WISE resources.
      */
-    private void sendEmail() {
+    private void sendEmail(HttpServletRequest request) {
       TeacherUserDetails newUserDetails = (TeacherUserDetails) newUser.getUserDetails();
       String userUsername = newUserDetails.getUsername();
       String userEmailAddress[] = {newUserDetails.getEmailAddress()};
@@ -337,8 +338,8 @@ private void sendEmail() {
           wiseProperties.getProperty("uber_admin").split(","));
       String defaultSubject = messageSource.getMessage("presentation.web.controllers.teacher.registerTeacherController.welcomeTeacherEmailSubject", null, Locale.US);
       String subject = messageSource.getMessage("presentation.web.controllers.teacher.registerTeacherController.welcomeTeacherEmailSubject", null, defaultSubject, this.locale);
-      String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
-      String gettingStartedUrl = wiseBaseURL + "/pages/gettingstarted.html";
+      String portalString = ControllerUtil.getPortalUrlString(request);
+      String gettingStartedUrl = portalString + "/pages/gettingstarted.html";
       String defaultBody = messageSource.getMessage("presentation.web.controllers.teacher.registerTeacherController.welcomeTeacherEmailBody", new Object[] {userUsername,gettingStartedUrl}, Locale.US);
       String message = messageSource.getMessage("presentation.web.controllers.teacher.registerTeacherController.welcomeTeacherEmailBody", new Object[] {userUsername,gettingStartedUrl}, defaultBody, this.locale);
 
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/teacher/grading/GradeWorkController.java b/src/main/java/org/wise/portal/presentation/web/controllers/teacher/grading/GradeWorkController.java
index c1bffc4152..34aab1d47d 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/teacher/grading/GradeWorkController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/teacher/grading/GradeWorkController.java
@@ -23,12 +23,6 @@
  */
 package org.wise.portal.presentation.web.controllers.teacher.grading;
 
-import java.io.IOException;
-import java.util.Properties;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -39,7 +33,6 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.servlet.ModelAndView;
-import org.springframework.web.servlet.view.RedirectView;
 import org.wise.portal.dao.ObjectNotFoundException;
 import org.wise.portal.domain.project.impl.ProjectType;
 import org.wise.portal.domain.run.Run;
@@ -47,6 +40,11 @@
 import org.wise.portal.presentation.web.controllers.ControllerUtil;
 import org.wise.portal.service.run.RunService;
 
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.Properties;
+
 /**
  * A Controller for Grading Student Work
  *
@@ -70,7 +68,7 @@ public class GradeWorkController {
    * @throws Exception
    */
   @RequestMapping(value = "/classroomMonitor/{runId}")
-  protected ModelAndView launchClassroomMonitorWISE5(@PathVariable Integer runId) throws Exception {
+  protected ModelAndView launchClassroomMonitorWISE5(HttpServletRequest request, @PathVariable Integer runId) throws Exception {
     Run run = null;
     try {
       run = runService.retrieveById(new Long(runId));
@@ -87,8 +85,8 @@ protected ModelAndView launchClassroomMonitorWISE5(@PathVariable Integer runId)
       this.runService.hasRunPermission(run, user, BasePermission.WRITE) ||
       this.runService.hasRunPermission(run, user, BasePermission.READ)) {
 
-      String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
-      String getClassroomMonitorConfigUrl = wiseBaseURL + "/config/classroomMonitor/" + runId;
+      String contextPath = request.getContextPath();
+      String getClassroomMonitorConfigUrl = contextPath + "/config/classroomMonitor/" + runId;
 
       ModelAndView modelAndView = new ModelAndView("classroomMonitor");
       modelAndView.addObject("configURL", getClassroomMonitorConfigUrl);
@@ -137,14 +135,14 @@ protected ModelAndView handleRequestInternal(
           this.runService.hasRunPermission(run, user, BasePermission.WRITE) ||
           this.runService.hasRunPermission(run, user, BasePermission.READ)) {
 
-          String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+          String contextPath = request.getContextPath();
 
-          String getGradeWorkUrl = wiseBaseURL + "/vle/gradework.html";
-          String getGradingConfigUrl = wiseBaseURL + "/vleconfig?runId=" + run.getId().toString() + "&gradingType=" + gradingType + "&mode=grading&getRevisions=" + getRevisions;
+          String getGradeWorkUrl = contextPath + "/vle/gradework.html";
+          String getGradingConfigUrl = contextPath + "/vleconfig?runId=" + run.getId().toString() + "&gradingType=" + gradingType + "&mode=grading&getRevisions=" + getRevisions;
 
           // get the classroom monitor urls
-          String getClassroomMonitorUrl = wiseBaseURL + "/vle/classroomMonitor.html";
-          String getClassroomMonitorConfigUrl = wiseBaseURL + "/vleconfig?runId=" + run.getId().toString() + "&gradingType=" + gradingType + "&mode=grading&getRevisions=" + getRevisions;
+          String getClassroomMonitorUrl = contextPath + "/vle/classroomMonitor.html";
+          String getClassroomMonitorConfigUrl = contextPath + "/vleconfig?runId=" + run.getId().toString() + "&gradingType=" + gradingType + "&mode=grading&getRevisions=" + getRevisions;
 
           // set the permission variable so that we can access it in the .jsp
           if (this.runService.hasRunPermission(run, user, BasePermission.WRITE)) {
diff --git a/src/main/java/org/wise/portal/presentation/web/controllers/teacher/run/UpdateRunController.java b/src/main/java/org/wise/portal/presentation/web/controllers/teacher/run/UpdateRunController.java
index b93724e4f5..1955792ecb 100644
--- a/src/main/java/org/wise/portal/presentation/web/controllers/teacher/run/UpdateRunController.java
+++ b/src/main/java/org/wise/portal/presentation/web/controllers/teacher/run/UpdateRunController.java
@@ -23,19 +23,11 @@
  */
 package org.wise.portal.presentation.web.controllers.teacher.run;
 
-import java.util.Date;
-import java.util.Properties;
-
-import javax.mail.MessagingException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.servlet.ModelAndView;
-import org.springframework.web.servlet.view.RedirectView;
 import org.wise.portal.domain.project.Project;
 import org.wise.portal.domain.run.Run;
 import org.wise.portal.domain.user.User;
@@ -43,8 +35,14 @@
 import org.wise.portal.presentation.web.exception.NotAuthorizedException;
 import org.wise.portal.service.authentication.UserDetailsService;
 import org.wise.portal.service.mail.IMailFacade;
-import org.wise.portal.service.run.RunService;
 import org.wise.portal.service.project.ProjectService;
+import org.wise.portal.service.run.RunService;
+
+import javax.mail.MessagingException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.Date;
+import java.util.Properties;
 
 /**
  * Controller for updating run settings, like add period,
@@ -139,7 +137,7 @@ protected ModelAndView handlePOST(HttpServletRequest request, HttpServletRespons
         this.runService.updateSurvey(Long.parseLong(runId), survey);
 
         // send email to WISE staff with Survey
-        String linkToSurvey = wiseProperties.getProperty("wiseBaseURL")+"/teacher/run/survey.html?runId="+runId;
+        String linkToSurvey = ControllerUtil.getPortalUrlString(request)+"/teacher/run/survey.html?runId="+runId;
         String emailBody = user.getUserDetails().getUsername()+ " completed a survey for "+run.getName()+" (Run ID="+runId+").\n\nLink to view survey on WISE: "+linkToSurvey+"\n\n"+survey;
         EmailService emailService =
           new EmailService("Survey completed [Run ID="+runId+"]: "+run.getName(), emailBody);
diff --git a/src/main/java/org/wise/portal/service/project/ProjectService.java b/src/main/java/org/wise/portal/service/project/ProjectService.java
index 50369299d0..68922cad02 100644
--- a/src/main/java/org/wise/portal/service/project/ProjectService.java
+++ b/src/main/java/org/wise/portal/service/project/ProjectService.java
@@ -23,11 +23,6 @@
  */
 package org.wise.portal.service.project;
 
-import java.io.IOException;
-import java.io.Serializable;
-import java.util.List;
-import java.util.Set;
-
 import org.springframework.security.access.annotation.Secured;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.servlet.ModelAndView;
@@ -40,6 +35,11 @@
 import org.wise.portal.domain.workgroup.Workgroup;
 import org.wise.portal.presentation.web.exception.NotAuthorizedException;
 
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.List;
+import java.util.Set;
+
 /**
  * A Service for Projects
  *
@@ -152,7 +152,7 @@ void removeSharedTeacherFromProject(String username, Project project)
    * @return
    * @throws Exception
    */
-  ModelAndView launchProject(Workgroup workgroup) throws Exception;
+  ModelAndView launchProject(Workgroup workgroup, String contextPath) throws Exception;
 
   /**
    * Launches a Preview of the Project.
diff --git a/src/main/java/org/wise/portal/service/project/impl/ProjectServiceImpl.java b/src/main/java/org/wise/portal/service/project/impl/ProjectServiceImpl.java
index 66c03c2b40..2be33dde87 100644
--- a/src/main/java/org/wise/portal/service/project/impl/ProjectServiceImpl.java
+++ b/src/main/java/org/wise/portal/service/project/impl/ProjectServiceImpl.java
@@ -301,8 +301,8 @@ public List<Project> getAdminProjectList() {
   /**
    * @see ProjectService#launchProject(Workgroup)
    */
-  public ModelAndView launchProject(Workgroup workgroup) throws Exception {
-    return new ModelAndView(new RedirectView(generateStudentStartProjectUrlString(workgroup)));
+  public ModelAndView launchProject(Workgroup workgroup, String contextPath) throws Exception {
+    return new ModelAndView(new RedirectView(generateStudentStartProjectUrlString(workgroup, contextPath)));
   }
 
   /**
@@ -313,20 +313,20 @@ public ModelAndView previewProject(PreviewProjectParameters params) throws Excep
     if (project.getWiseVersion().equals(4)) {
       return previewProjectWISE4(params, project);
     } else {
-      return previewProjectWISE5(project);
+      return previewProjectWISE5(params, project);
     }
   }
 
-  private ModelAndView previewProjectWISE5(Project project) {
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
-    String wise5URL = wiseBaseURL + "/project/" + project.getId();
+  private ModelAndView previewProjectWISE5(PreviewProjectParameters params, Project project) {
+    String contextPath = params.getHttpServletRequest().getContextPath();
+    String wise5URL = contextPath + "/project/" + project.getId();
     return new ModelAndView(new RedirectView(wise5URL));
   }
 
   private ModelAndView previewProjectWISE4(PreviewProjectParameters params, Project project) {
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
+    String contextPath = params.getHttpServletRequest().getContextPath();
     String vleConfigUrl =
-        wiseBaseURL + "/vleconfig" + "?projectId=" + project.getId() + "&mode=preview";
+        contextPath + "/vleconfig" + "?projectId=" + project.getId() + "&mode=preview";
 
     String step = params.getStep();
     if (step != null) {
@@ -348,7 +348,7 @@ private ModelAndView previewProjectWISE4(PreviewProjectParameters params, Projec
     }
 
     ModelAndView modelAndView = new ModelAndView("vle");
-    String vleurl = wiseBaseURL + "/vle/vle.html";
+    String vleurl = contextPath + "/vle/vle.html";
     modelAndView.addObject("vleurl", vleurl);
     modelAndView.addObject("vleConfigUrl", vleConfigUrl);
     String curriculumBaseWWW = wiseProperties.getProperty("curriculum_base_www");
@@ -393,15 +393,14 @@ public void updateProject(Project project, User user) throws NotAuthorizedExcept
    * @param workgroup Workgroup requesting to launch the project
    * @return url string that, when accessed, will launch the project
    */
-  public String generateStudentStartProjectUrlString(Workgroup workgroup) {
+  public String generateStudentStartProjectUrlString(Workgroup workgroup, String contextPath) {
     Run run = workgroup.getRun();
     Project project = run.getProject();
     Integer wiseVersion = project.getWiseVersion();
-    String wiseBaseURL = wiseProperties.getProperty("wiseBaseURL");
     if (wiseVersion.equals(4)) {
-      return wiseBaseURL + "/student/vle/vle.html?runId=" + run.getId() + "&workgroupId=" + workgroup.getId();
+      return contextPath + "/student/vle/vle.html?runId=" + run.getId() + "&workgroupId=" + workgroup.getId();
     } else if (wiseVersion.equals(5)) {
-      return wiseBaseURL + "/student/run/" + run.getId();
+      return contextPath + "/student/run/" + run.getId();
     }
     return null;
   }
diff --git a/src/main/resources/version.txt b/src/main/resources/version.txt
index 6ab7204dab..bdbab22610 100644
--- a/src/main/resources/version.txt
+++ b/src/main/resources/version.txt
@@ -1 +1 @@
-5.7.5
+5.7.6
diff --git a/src/main/resources/wise_sample.properties b/src/main/resources/wise_sample.properties
index 92c390f0df..94260be5a0 100644
--- a/src/main/resources/wise_sample.properties
+++ b/src/main/resources/wise_sample.properties
@@ -3,7 +3,7 @@
 # This section is for portal definitions
 # NOTE FOR WINDOWS USERS: you can use paths like this: C:/apache-tomcat-7.0.32/webapps/curriculum instead of C:\....
 # wise.name  - name this WISE instance. Used when sending email to users. (e.g. "Hello from My Local WISE Instance", "Password changed on My Local WISE Instance")
-# defaultLocale - the default locale for this WISE instance. [en, es, he, zh_CN,...] First-time users will see WISE in this locale when they visit the homepage. 
+# defaultLocale - the default locale for this WISE instance. [en, es, he, zh_CN,...] First-time users will see WISE in this locale when they visit the homepage.
 # wiseBaseURL - hosted wise location, viewable by browser. ex: if running locally, http://localhost:8080/wise.  if running publicly, http://wise4.xyz.com:8080/wise, etc.
 # wiseBaseDir - absolute server path to the wise folder in CATALINA_HOME/webapps/wise. ex: /home/userx/apache-tomcat-6.0.29/webapps/wise
 # curriculum_base_www -  hosted curriculum location, viewable by browser. ex: if running locally, http://localhost:8080/curriculum.  if running publicly, http://wise4.xyz.com:8080/curriculum, etc.
@@ -28,7 +28,6 @@
 wise.name=My WISE Production Instance
 defaultLocale=en
 supportedLocales=en,ar,zh_TW,zh_CN,nl,fr,de,el,he,it,ja,ko,pt,es,th,tr
-wiseBaseURL=http://localhost:8080/wise
 wiseBaseDir=/Users/wise/tomcat/webapps/wise
 curriculum_base_www=http://localhost:8080/curriculum
 curriculum_base_dir=/Users/wise/tomcat/webapps/curriculum
@@ -70,7 +69,7 @@ hibernate.bytecode.use_reflection_optimizer=true
 hibernate.hbm2ddl.auto=none
 
 # Sample HSQLDB setting (for development server)
-# You can also use HSQLDB embedded database, but it's not recommended for 
+# You can also use HSQLDB embedded database, but it's not recommended for
 # production/qa purposes.
 # Comment out the above MySQL section and uncomment the below.
 
@@ -112,9 +111,9 @@ c3p0.idleConnectionTestPeriod=100
 # - when a run is set up or shared
 # - when a project is shared
 # - daily reports for admins
-# 
+#
 # One easy thing to do is create a gmail account and use it as an smtp server to send emails on behalf of the portal.
-# With this approach, 
+# With this approach,
 #  mail.user is the gmail username
 #  mail.password is the gmail password
 #  mail.from is the gmail address (ex xyz@gmail.com)
@@ -167,12 +166,12 @@ cronJobExpression=0 0 0 * * ?
 
 ########## run codes prefixes ##########
 
-# List available run codes for each locale here. 
-# Each line should follow this format runcode_prefixes_[locale]=comma separated values for runcode prefixes. 
+# List available run codes for each locale here.
+# Each line should follow this format runcode_prefixes_[locale]=comma separated values for runcode prefixes.
 # For example, runcode_prefixes_en=urchin,lion for english, runcode_prefixes_es=queso,azul for spanish
 runcode_prefixes_en=Tiger,Lion,Fox,Owl,Panda,Hawk,Mole,Falcon,Orca,Eagle,Manta,Otter,Cat,Zebra,Flea,Wolf,Dragon,Seal,Cobra,Bug,Gecko,Fish,Koala,Mouse,Wombat,Shark,Whale,Sloth,Slug,Ant,Mantis,Bat,Rhino,Gator,Monkey,Swan,Ray,Crow,Goat,Marmot,Dog,Finch,Puffin,Fly,Camel,Kiwi,Spider,Lizard,Robin,Bear,Boa,Cow,Crab,Mule,Moth,Lynx,Moose,Skunk,Mako,Liger,Llama,Shrimp,Parrot,Pig,Clam,Urchin,Toucan,Frog,Toad,Turtle,Viper,Trout,Hare,Bee,Krill,Dodo,Tuna,Loon,Leech,Python,Wasp,Yak,Snake,Duck,Worm,Yeti
 runcode_prefixes_es=Cabra,Liebre,Oruga,Casa,Panda,Ciervo,Alce,Toro,Tigre,Rana,Sapo,Cebra,Rata,Selva,Sombra,Teja,Auto,Ronda,Libra,Tauro,Libro,Libre,Huerta,Pan,Ostra,Pez
-	
+
 
 ########## VLE Properties ##########
 
@@ -181,7 +180,7 @@ runcode_prefixes_es=Cabra,Liebre,Oruga,Casa,Panda,Ciervo,Alce,Toro,Tigre,Rana,Sa
 # remember to set maxFileUploadSize >= project_max_total_assets_size
 # student_max_asset_size: max size for any asset uploaded by student, in bytes. Default: 5MB=5242880 bytes
 # student_max_total_assets_size: max size for all assets combined uploaded by student, in bytes. Default: 10MB=10485760 bytes
-# student_max_work_size: max size of student work (data in one node visit) for nodes in bytes. Default:  500K=512000 bytes 
+# student_max_work_size: max size of student work (data in one node visit) for nodes in bytes. Default:  500K=512000 bytes
 #
 # Note: if you set any of these values above 1MB, you'll also need to set mysql's max_allowed_packet value to allow saving the big data.
 # See this post: https://groups.google.com/d/topic/wise4-dev/CPS4AZEiquo/discussion
diff --git a/src/main/resources/wise_sample_embedded_tomcat.properties b/src/main/resources/wise_sample_embedded_tomcat.properties
index 10304366d1..fc6f5e6198 100644
--- a/src/main/resources/wise_sample_embedded_tomcat.properties
+++ b/src/main/resources/wise_sample_embedded_tomcat.properties
@@ -27,7 +27,6 @@
 wise.name=My Local WISE Development Instance
 defaultLocale=en
 supportedLocales=en,ar,zh_TW,zh_CN,nl,fr,de,el,he,it,ja,ko,pt,es,th,tr
-wiseBaseURL=/wise
 wiseBaseDir=/path_to_WISE_checkout/src/main/webapp/
 curriculum_base_www=/wise/curriculum
 curriculum_base_dir=/path_to_WISE_checkout/src/main/webapp/curriculum
@@ -175,7 +174,7 @@ runcode_prefixes_es=Cabra,Liebre,Oruga,Casa,Panda,Ciervo,Alce,Toro,Tigre,Rana,Sa
 # remember to set maxFileUploadSize >= project_max_total_assets_size
 # student_max_asset_size: max size for any asset uploaded by student, in bytes. Default: 5MB=5242880 bytes
 # student_max_total_assets_size: max size for all assets combined uploaded by student, in bytes. Default: 2MB=2097152 bytes
-# student_max_work_size: max size of student work (data in one node visit) for nodes in bytes. Default:  500K=512000 bytes 
+# student_max_work_size: max size of student work (data in one node visit) for nodes in bytes. Default:  500K=512000 bytes
 #
 # Note: if you set any of these values above 1MB, you'll also need to set mysql's max_allowed_packet value to allow saving the big data.
 # See this post: https://groups.google.com/d/topic/wise4-dev/CPS4AZEiquo/discussion
diff --git a/src/main/webapp/portal/admin/run/manageprojectruns.jsp b/src/main/webapp/portal/admin/run/manageprojectruns.jsp
index 739d13a3ea..c1abf78261 100644
--- a/src/main/webapp/portal/admin/run/manageprojectruns.jsp
+++ b/src/main/webapp/portal/admin/run/manageprojectruns.jsp
@@ -3,479 +3,479 @@
 <!DOCTYPE html>
 <html dir="${textDirection}">
 <head>
-<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
-<meta http-equiv="X-UA-Compatible" content="chrome=1" />
-<link rel="shortcut icon" href="${contextPath}/<spring:theme code="favicon"/>" />
-<title><spring:message code="wiseAdmin" /></title>
+    <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+    <meta http-equiv="X-UA-Compatible" content="chrome=1" />
+    <link rel="shortcut icon" href="${contextPath}/<spring:theme code="favicon"/>" />
+    <title><spring:message code="wiseAdmin" /></title>
 
-<link href="${contextPath}/<spring:theme code="globalstyles"/>" media="screen" rel="stylesheet"  type="text/css" />
-<link href="${contextPath}/<spring:theme code="stylesheet"/>" media="screen" rel="stylesheet"  type="text/css" />
-<link href="${contextPath}/<spring:theme code="jquerystylesheet"/>" media="screen" rel="stylesheet" type="text/css" />
-<link href="${contextPath}/<spring:theme code="teacherhomepagestylesheet"/>" media="screen" rel="stylesheet" type="text/css" />
-<link href="${contextPath}/<spring:theme code="teacherrunstylesheet"/>" media="screen" rel="stylesheet"  type="text/css" />
-<link href="${contextPath}/<spring:theme code="jquerydatatables.css"/>" media="screen" rel="stylesheet"  type="text/css" />
-<link href="${contextPath}/<spring:theme code="facetedfilter.css"/>" media="screen" rel="stylesheet"  type="text/css" />
+    <link href="${contextPath}/<spring:theme code="globalstyles"/>" media="screen" rel="stylesheet"  type="text/css" />
+    <link href="${contextPath}/<spring:theme code="stylesheet"/>" media="screen" rel="stylesheet"  type="text/css" />
+    <link href="${contextPath}/<spring:theme code="jquerystylesheet"/>" media="screen" rel="stylesheet" type="text/css" />
+    <link href="${contextPath}/<spring:theme code="teacherhomepagestylesheet"/>" media="screen" rel="stylesheet" type="text/css" />
+    <link href="${contextPath}/<spring:theme code="teacherrunstylesheet"/>" media="screen" rel="stylesheet"  type="text/css" />
+    <link href="${contextPath}/<spring:theme code="jquerydatatables.css"/>" media="screen" rel="stylesheet"  type="text/css" />
+    <link href="${contextPath}/<spring:theme code="facetedfilter.css"/>" media="screen" rel="stylesheet"  type="text/css" />
 
-<script src="${contextPath}/<spring:theme code="jquerysource"/>" type="text/javascript"></script> 
-<script src="${contextPath}/<spring:theme code="jquerydatatables.js"/>" type="text/javascript"></script>
-<script src="${contextPath}/<spring:theme code="generalsource"/>" type="text/javascript"></script>
-<script src="${contextPath}/<spring:theme code="jqueryuisource"/>" type="text/javascript"></script>
-<script src="${contextPath}/<spring:theme code="facetedfilter.js"/>" type="text/javascript"></script>
+    <script src="${contextPath}/<spring:theme code="jquerysource"/>" type="text/javascript"></script>
+    <script src="${contextPath}/<spring:theme code="jquerydatatables.js"/>" type="text/javascript"></script>
+    <script src="${contextPath}/<spring:theme code="generalsource"/>" type="text/javascript"></script>
+    <script src="${contextPath}/<spring:theme code="jqueryuisource"/>" type="text/javascript"></script>
+    <script src="${contextPath}/<spring:theme code="facetedfilter.js"/>" type="text/javascript"></script>
 
-<!-- TODO: move to separate js setup file (will require js i18n implementation for portal) -->
-<script type="text/javascript">
+    <!-- TODO: move to separate js setup file (will require js i18n implementation for portal) -->
+    <script type="text/javascript">
 
-	$(document).ready(function() {
+        $(document).ready(function() {
 
-	//setup grading and classroom monitor dialogs
-	$('.grading, .researchTools').on('click',function(){
-		var settings = $(this).attr('id');
-		var title = $(this).attr('title');
-		var path = "${contextPath}/teacher/grading/gradework.html?" + settings;
-		var div = $('#gradingDialog').html('<iframe id="gradingIfrm" width="100%" height="100%" style="overflow-y:hidden;"></iframe>');
-		$('body').css('overflow','hidden');
-		div.dialog({
-			modal: true,
-			width: $(window).width() - 32,
-			height: $(window).height() - 32,
-			position: 'center',
-			title: title,
-			close: function (e, ui) { $(this).html(''); $('body').css('overflow','auto'); },
-			buttons: {
-				Exit: function(){
-					$(this).dialog('close');
-				}
-			}
-		});
-		$("#gradingDialog > #gradingIfrm").attr('src',path);
-	});
-	
-	// setup grading and classroom monitor dialogs
-	$('.classroomMonitor').on('click',function(){
-		var settings = $(this).attr('id');
-		var runId = $(this).attr('runId');
-		var title = $(this).attr('title');
-		var wiseVersion = $(this).attr('wiseVersion');
-		var path = "${contextPath}/teacher/classroomMonitor/classroomMonitor?" + settings;
-		if (wiseVersion != null && wiseVersion == 5) {
-			path = "${contextPath}/classroomMonitor/" + runId;
-		}
-		window.open(path);
-	});
-	
-	// setup share project run dialog
-	$('.shareRun').on('click',function(){
-		var title = $(this).attr('title');
-		var runId = $(this).attr('id').replace('shareRun_','');
-		var path = "${contextPath}/teacher/run/shareprojectrun.html?runId=" + runId;
-		var div = $('#shareDialog').html('<iframe id="shareIfrm" width="100%" height="100%"></iframe>');
-		div.dialog({
-			modal: true,
-			width: '650',
-			height: '450',
-			title: title,
-			position: 'center',
-			close: function(){ 
-				$(this).html('');
-			},
-			buttons: {
-				Close: function(){$(this).dialog('close');}
-			}
-		});
-		$("#shareDialog > #shareIfrm").attr('src',path);
-	});
-	
-	// setup edit run settings dialog
-	$('.editRun').on('click',function(){
-		var title = $(this).attr('title');
-		var runId = $(this).attr('id').replace('editRun_','');
-		var path = "${contextPath}/teacher/run/editrun.html?runId=" + runId;
-		var div = $('#editRunDialog').html('<iframe id="editIfrm" width="100%" height="100%"></iframe>');
-		div.dialog({
-			modal: true,
-			width: '600',
-			height: '400',
-			title: title,
-			position: 'center',
-			close: function(){
-				if(document.getElementById('editIfrm').contentWindow['runUpdated']){
-					window.location.reload();
-				}
-				$(this).html(''); 
-			},
-			buttons: {
-				Close: function(){
-					$(this).dialog('close');
-				}
-			}
-		});
-		$("#editRunDialog > #editIfrm").attr('src',path);
-	});
+            //setup grading and classroom monitor dialogs
+            $('.grading, .researchTools').on('click',function(){
+                var settings = $(this).attr('id');
+                var title = $(this).attr('title');
+                var path = "${contextPath}/teacher/grading/gradework.html?" + settings;
+                var div = $('#gradingDialog').html('<iframe id="gradingIfrm" width="100%" height="100%" style="overflow-y:hidden;"></iframe>');
+                $('body').css('overflow','hidden');
+                div.dialog({
+                    modal: true,
+                    width: $(window).width() - 32,
+                    height: $(window).height() - 32,
+                    position: 'center',
+                    title: title,
+                    close: function (e, ui) { $(this).html(''); $('body').css('overflow','auto'); },
+                    buttons: {
+                        Exit: function(){
+                            $(this).dialog('close');
+                        }
+                    }
+                });
+                $("#gradingDialog > #gradingIfrm").attr('src',path);
+            });
 
-	//setup archive and restore run dialogs
-	$('.archiveRun, .activateRun').on('click',function(){
-		var title = $(this).attr('title');
-		if($(this).hasClass('archiveRun')){
-			var params = $(this).attr('id').replace('archiveRun_','');
-			var path = "${contextPath}/teacher/run/manage/archiveRun.html?" + params;
-		} else if($(this).hasClass('activateRun')){
-			var params = $(this).attr('id').replace('activateRun_','');
-			var path = "${contextPath}/teacher/run/manage/startRun.html?" + params;
-		}
-		var div = $('#archiveRunDialog').html('<iframe id="archiveIfrm" width="100%" height="100%"></iframe>');
-		div.dialog({
-			modal: true,
-			width: '600',
-			height: '450',
-			title: title,
-			position: 'center',
-			close: function(){
-				if(document.getElementById('archiveIfrm').contentWindow['refreshRequired']){
-					window.location.reload();
-				}
-				$(this).html('');
-			},
-			buttons: {
-				Close: function(){
-					$(this).dialog('close');
-				}
-			}
-		});
-		$("#archiveRunDialog > #archiveIfrm").attr('src',path);
-	});
-	
-	// setup manage students dialog
-	$('.manageStudents').on('click',function(){
-		var title = $(this).attr('title');
-		var params = $(this).attr('id').replace('manageStudents_','');
-		var path = "${contextPath}/teacher/management/viewmystudents?" + params;
-		var div = $('#manageStudentsDialog').html('<iframe id="manageStudentsIfrm" width="100%" height="100%"></iframe>');
-		$('body').css('overflow','hidden');
-		div.dialog({
-			modal: true,
-			width: $(window).width() - 32,
-			height: $(window).height() - 32,
-			title: title,
-			position: 'center',
-			beforeClose: function() {
-				// check for unsaved changes and alert user if necessary
-				if(document.getElementById('manageStudentsIfrm').contentWindow['unsavedChanges']){
-					var answer = confirm("Warning: You currently have unsaved changes to student teams. If you exit now, they will be discarded. To save your changes, choose 'Cancel' and click the 'SAVE CHANGES' button in the upper right corner.\n\nAre you sure you want to exit without saving?")
-					if(answer){
-						return true;
-					} else {
-						return false;
-					};
-				} else {
-					return true;
-				}
-			},
-			close: function(){
-				// refresh page if required (run title or student periods have been modified)
-				if(document.getElementById('manageStudentsIfrm').contentWindow['refreshRequired']){
-					window.location.reload();
-				}
-				$(this).html('');
-				$('body').css('overflow','auto');
-			},
-			buttons: {
-				Exit: function(){
-					$(this).dialog('close');
-				}
-			}
-		});
-		$("#manageStudentsDialog > #manageStudentsIfrm").attr('src',path);
-	});
+            // setup grading and classroom monitor dialogs
+            $('.classroomMonitor').on('click',function(){
+                var settings = $(this).attr('id');
+                var runId = $(this).attr('runId');
+                var title = $(this).attr('title');
+                var wiseVersion = $(this).attr('wiseVersion');
+                var path = "${contextPath}/teacher/classroomMonitor/classroomMonitor?" + settings;
+                if (wiseVersion != null && wiseVersion == 5) {
+                    path = "${contextPath}/classroomMonitor/" + runId;
+                }
+                window.open(path);
+            });
 
-	//Set up view project details click action for each project id link
-	$('a.projectDetail').on('click',function(){
-		var title = $(this).attr('title');
-		if($(this).hasClass('projectDetail')){
-			var projectId = $(this).attr('id').replace('projectDetail_','');
-		} else if($(this).hasClass('projectInfo')){
-			var projectId = $(this).attr('id').replace('projectInfo_','');
-		}
-		var path = "${contextPath}/projectInfo?projectId=" + projectId;
-		var div = $('#projectDetailDialog').html('<iframe id="projectIfrm" width="100%" height="100%"></iframe>');
-		div.dialog({
-			modal: true,
-			width: '800',
-			height: '400',
-			title: title,
-			position: 'center',
-			close: function(){ $(this).html(''); },
-			buttons: {
-				Close: function(){
-					$(this).dialog('close');
-				}
-			}
-		});
-		$("#projectDetailDialog > #projectIfrm").attr('src',path);
-	});
-	
+            // setup share project run dialog
+            $('.shareRun').on('click',function(){
+                var title = $(this).attr('title');
+                var runId = $(this).attr('id').replace('shareRun_','');
+                var path = "${contextPath}/teacher/run/shareprojectrun.html?runId=" + runId;
+                var div = $('#shareDialog').html('<iframe id="shareIfrm" width="100%" height="100%"></iframe>');
+                div.dialog({
+                    modal: true,
+                    width: '650',
+                    height: '450',
+                    title: title,
+                    position: 'center',
+                    close: function(){
+                        $(this).html('');
+                    },
+                    buttons: {
+                        Close: function(){$(this).dialog('close');}
+                    }
+                });
+                $("#shareDialog > #shareIfrm").attr('src',path);
+            });
 
+            // setup edit run settings dialog
+            $('.editRun').on('click',function(){
+                var title = $(this).attr('title');
+                var runId = $(this).attr('id').replace('editRun_','');
+                var path = "${contextPath}/teacher/run/editrun.html?runId=" + runId;
+                var div = $('#editRunDialog').html('<iframe id="editIfrm" width="100%" height="100%"></iframe>');
+                div.dialog({
+                    modal: true,
+                    width: '600',
+                    height: '400',
+                    title: title,
+                    position: 'center',
+                    close: function(){
+                        if(document.getElementById('editIfrm').contentWindow['runUpdated']){
+                            window.location.reload();
+                        }
+                        $(this).html('');
+                    },
+                    buttons: {
+                        Close: function(){
+                            $(this).dialog('close');
+                        }
+                    }
+                });
+                $("#editRunDialog > #editIfrm").attr('src',path);
+            });
 
-		var oTable = $('.runTable').dataTable({
-			"sPaginationType": "full_numbers",
-			"iDisplayLength": 10,
-			"aLengthMenu": [[10, 25, 100, -1], [10, 25, 100, "All"]],
-			"bSort": false,
-			"oLanguage": {
-				"sInfo": "<spring:message code="datatable_info_showing"/> _START_-_END_ <spring:message code="of"/> _TOTAL_",
-				"sInfoEmpty": "<spring:message code="datatable_info_empty"/>",
-				"sInfoFiltered": "<spring:message code="datatable_info_filtered_post_matches"/>", // (from _MAX_ total)
-				"sLengthMenu": "<spring:message code="datatable_lengthLabel"/> _MENU_ <spring:message code="datatable_perPage"/>",
-				"sProcessing": "<spring:message code="processing"/>",
-				"sZeroRecords": "<spring:message code="datatable_noMatch"/>",
-				"sInfoPostFix":  "",
-				"sSearch": "<spring:message code="datatable_search"/>",
-				"sUrl": "",
-				"oPaginate": {
-					"sFirst":    "<spring:message code="datatable_paginate_first"/>",
-					"sPrevious": "<spring:message code="datatable_paginate_previous"/>",
-					"sNext":     "<spring:message code="datatable_paginate_next"/>",
-					"sLast":     "<spring:message code="datatable_paginate_last"/>"
-				}
-			},
-			"fnDrawCallback": function( oSettings ){
-				// automatically scroll to top on page change
-				var tableID = $(this).attr('id');
-				var targetOffset = $('#' + tableID).offset().top - 14;
-				if ($(window).scrollTop() > targetOffset){
-					$('html,body').scrollTop(targetOffset);
-				}
-			},
-			"sDom":'<"top"lip>rt<"bottom"ip><"clear">'
-		});
-		
-		// define sort options
-		var sortParams = {
-				"items": [
-							{"label": "<spring:message code="teacher.management.projectruntabs.sort_AZ"/>", "column": 3, "direction": "desc" },
-							{"label": "<spring:message code="teacher.management.projectruntabs.sort_ZA"/>", "column": 3, "direction": "asc" },
-							{"label": "<spring:message code="teacher.management.projectruntabs.sort_NewOld"/>", "column": 0, "direction": "asc" },
-							{"label": "<spring:message code="teacher.management.projectruntabs.sort_OldNew"/>", "column": 0, "direction": "desc" }
-						]
-		};
-		
-		// setup sorting
-		function setSort(index,sortParams,wrapper) {
-			if(sortParams.items.length){
-				// insert sort options into DOM
-				var sortHtml = '<div class="dataTables_sort"><spring:message code="datatable_sort"/> <select id="' + 'sort_' + index + '"  size="1">';
-				$.each(sortParams.items,function(){
-					sortHtml += '<option>' + this.label + '</option>';
-				});
-				sortHtml +=	'</select></div>';
-				$(wrapper).children('.top').prepend(sortHtml);
-				
-				$('#sort_' + index).change(function(){
-					$.fn.dataTableExt.iApiIndex = index;
-					var i = $('option:selected', '#sort_' + index).index();
-					oTable.fnSort( [ [sortParams.items[i].column,sortParams.items[i].direction] ] );
-				});
-			}
-		};
-		
-		var i;
-		for(i=0; i<oTable.length; i++){
-			oTable.dataTableExt.iApiIndex = i;
-			var wrapper = oTable.fnSettings().nTableWrapper;
-			var table = oTable.fnSettings();
-			var id = $(table.oInstance).attr('id');
-			
-			// Define FacetedFilter options
-			var facets = new FacetedFilter( table, {
-				"bScroll": false,
-				"sClearFilterLabel": "<spring:message code="datatable_ff_filter_clear"/>",
-				"sClearSearchLabel": "<spring:message code="datatable_ff_search_clear"/>",
-				"sFilterLabel": "<spring:message code="datatable_ff_filter_label"/>",
-				"sSearchLabel": "<spring:message code="datatable_ff_search_label"/>",
-				"aSearchOpts": [
-					{
-						"identifier": "keyword", "label": "<spring:message code="datatable_ff_keyword_label"/> ", "column": 0, "maxlength": 50
-					},
-					{
-						"identifier": "period", "label": "<spring:message code="datatable_ff_period_label"/> ", "column": 7, "maxlength": 30,
-						"regexreplace": {"match": "/,\s*/gi", "replacement": " "},
-						"instructions": "<spring:message code="datatable_ff_period_instructions"/>"
-					}
-				 ]
-			});
-			
-			// add sort logic
-			setSort(i,sortParams,wrapper);
-			
-			// reset cloumn widths on run tables (datatables seems to change these)
-			$('.runHeader').width(215);
-			$('.studentHeader').width(145);
-			$('.teacherHeader').width(115);
-			$('.toolsHeader').width(170);
-			
-			oTable.fnSort( [ [7,'desc'] ] );
-		}
-		
-		// Make top header scroll with page
-		var $stickyEl = $('.dataTables_wrapper .top');
-		if($stickyEl.length>0){
-			var elTop = $stickyEl.offset().top,
-			width = $stickyEl.width();
-			$(window).scroll(function() {
-		        var windowTop = $(window).scrollTop();
-		        if (windowTop > elTop) {
-		            $stickyEl.addClass('sticky');
-		        	$stickyEl.css('width',width);
-		        } else {
-		            $stickyEl.removeClass('sticky');
-		        	$stickyEl.css('width','auto');
-		        }
-		    });
-		}
-	});
-</script>
+            //setup archive and restore run dialogs
+            $('.archiveRun, .activateRun').on('click',function(){
+                var title = $(this).attr('title');
+                if($(this).hasClass('archiveRun')){
+                    var params = $(this).attr('id').replace('archiveRun_','');
+                    var path = "${contextPath}/teacher/run/manage/archiveRun.html?" + params;
+                } else if($(this).hasClass('activateRun')){
+                    var params = $(this).attr('id').replace('activateRun_','');
+                    var path = "${contextPath}/teacher/run/manage/startRun.html?" + params;
+                }
+                var div = $('#archiveRunDialog').html('<iframe id="archiveIfrm" width="100%" height="100%"></iframe>');
+                div.dialog({
+                    modal: true,
+                    width: '600',
+                    height: '450',
+                    title: title,
+                    position: 'center',
+                    close: function(){
+                        if(document.getElementById('archiveIfrm').contentWindow['refreshRequired']){
+                            window.location.reload();
+                        }
+                        $(this).html('');
+                    },
+                    buttons: {
+                        Close: function(){
+                            $(this).dialog('close');
+                        }
+                    }
+                });
+                $("#archiveRunDialog > #archiveIfrm").attr('src',path);
+            });
+
+            // setup manage students dialog
+            $('.manageStudents').on('click',function(){
+                var title = $(this).attr('title');
+                var params = $(this).attr('id').replace('manageStudents_','');
+                var path = "${contextPath}/teacher/management/viewmystudents?" + params;
+                var div = $('#manageStudentsDialog').html('<iframe id="manageStudentsIfrm" width="100%" height="100%"></iframe>');
+                $('body').css('overflow','hidden');
+                div.dialog({
+                    modal: true,
+                    width: $(window).width() - 32,
+                    height: $(window).height() - 32,
+                    title: title,
+                    position: 'center',
+                    beforeClose: function() {
+                        // check for unsaved changes and alert user if necessary
+                        if(document.getElementById('manageStudentsIfrm').contentWindow['unsavedChanges']){
+                            var answer = confirm("Warning: You currently have unsaved changes to student teams. If you exit now, they will be discarded. To save your changes, choose 'Cancel' and click the 'SAVE CHANGES' button in the upper right corner.\n\nAre you sure you want to exit without saving?")
+                            if(answer){
+                                return true;
+                            } else {
+                                return false;
+                            };
+                        } else {
+                            return true;
+                        }
+                    },
+                    close: function(){
+                        // refresh page if required (run title or student periods have been modified)
+                        if(document.getElementById('manageStudentsIfrm').contentWindow['refreshRequired']){
+                            window.location.reload();
+                        }
+                        $(this).html('');
+                        $('body').css('overflow','auto');
+                    },
+                    buttons: {
+                        Exit: function(){
+                            $(this).dialog('close');
+                        }
+                    }
+                });
+                $("#manageStudentsDialog > #manageStudentsIfrm").attr('src',path);
+            });
+
+            //Set up view project details click action for each project id link
+            $('a.projectDetail').on('click',function(){
+                var title = $(this).attr('title');
+                if($(this).hasClass('projectDetail')){
+                    var projectId = $(this).attr('id').replace('projectDetail_','');
+                } else if($(this).hasClass('projectInfo')){
+                    var projectId = $(this).attr('id').replace('projectInfo_','');
+                }
+                var path = "${contextPath}/projectInfo?projectId=" + projectId;
+                var div = $('#projectDetailDialog').html('<iframe id="projectIfrm" width="100%" height="100%"></iframe>');
+                div.dialog({
+                    modal: true,
+                    width: '800',
+                    height: '400',
+                    title: title,
+                    position: 'center',
+                    close: function(){ $(this).html(''); },
+                    buttons: {
+                        Close: function(){
+                            $(this).dialog('close');
+                        }
+                    }
+                });
+                $("#projectDetailDialog > #projectIfrm").attr('src',path);
+            });
+
+
+
+            var oTable = $('.runTable').dataTable({
+                "sPaginationType": "full_numbers",
+                "iDisplayLength": 10,
+                "aLengthMenu": [[10, 25, 100, -1], [10, 25, 100, "All"]],
+                "bSort": false,
+                "oLanguage": {
+                    "sInfo": "<spring:message code="datatable_info_showing"/> _START_-_END_ <spring:message code="of"/> _TOTAL_",
+                    "sInfoEmpty": "<spring:message code="datatable_info_empty"/>",
+                    "sInfoFiltered": "<spring:message code="datatable_info_filtered_post_matches"/>", // (from _MAX_ total)
+                    "sLengthMenu": "<spring:message code="datatable_lengthLabel"/> _MENU_ <spring:message code="datatable_perPage"/>",
+                    "sProcessing": "<spring:message code="processing"/>",
+                    "sZeroRecords": "<spring:message code="datatable_noMatch"/>",
+                    "sInfoPostFix":  "",
+                    "sSearch": "<spring:message code="datatable_search"/>",
+                    "sUrl": "",
+                    "oPaginate": {
+                        "sFirst":    "<spring:message code="datatable_paginate_first"/>",
+                        "sPrevious": "<spring:message code="datatable_paginate_previous"/>",
+                        "sNext":     "<spring:message code="datatable_paginate_next"/>",
+                        "sLast":     "<spring:message code="datatable_paginate_last"/>"
+                    }
+                },
+                "fnDrawCallback": function( oSettings ){
+                    // automatically scroll to top on page change
+                    var tableID = $(this).attr('id');
+                    var targetOffset = $('#' + tableID).offset().top - 14;
+                    if ($(window).scrollTop() > targetOffset){
+                        $('html,body').scrollTop(targetOffset);
+                    }
+                },
+                "sDom":'<"top"lip>rt<"bottom"ip><"clear">'
+            });
+
+            // define sort options
+            var sortParams = {
+                "items": [
+                    {"label": "<spring:message code="teacher.management.projectruntabs.sort_AZ"/>", "column": 3, "direction": "desc" },
+                    {"label": "<spring:message code="teacher.management.projectruntabs.sort_ZA"/>", "column": 3, "direction": "asc" },
+                    {"label": "<spring:message code="teacher.management.projectruntabs.sort_NewOld"/>", "column": 0, "direction": "asc" },
+                    {"label": "<spring:message code="teacher.management.projectruntabs.sort_OldNew"/>", "column": 0, "direction": "desc" }
+                ]
+            };
+
+            // setup sorting
+            function setSort(index,sortParams,wrapper) {
+                if(sortParams.items.length){
+                    // insert sort options into DOM
+                    var sortHtml = '<div class="dataTables_sort"><spring:message code="datatable_sort"/> <select id="' + 'sort_' + index + '"  size="1">';
+                    $.each(sortParams.items,function(){
+                        sortHtml += '<option>' + this.label + '</option>';
+                    });
+                    sortHtml +=	'</select></div>';
+                    $(wrapper).children('.top').prepend(sortHtml);
+
+                    $('#sort_' + index).change(function(){
+                        $.fn.dataTableExt.iApiIndex = index;
+                        var i = $('option:selected', '#sort_' + index).index();
+                        oTable.fnSort( [ [sortParams.items[i].column,sortParams.items[i].direction] ] );
+                    });
+                }
+            };
+
+            var i;
+            for(i=0; i<oTable.length; i++){
+                oTable.dataTableExt.iApiIndex = i;
+                var wrapper = oTable.fnSettings().nTableWrapper;
+                var table = oTable.fnSettings();
+                var id = $(table.oInstance).attr('id');
+
+                // Define FacetedFilter options
+                var facets = new FacetedFilter( table, {
+                    "bScroll": false,
+                    "sClearFilterLabel": "<spring:message code="datatable_ff_filter_clear"/>",
+                    "sClearSearchLabel": "<spring:message code="datatable_ff_search_clear"/>",
+                    "sFilterLabel": "<spring:message code="datatable_ff_filter_label"/>",
+                    "sSearchLabel": "<spring:message code="datatable_ff_search_label"/>",
+                    "aSearchOpts": [
+                        {
+                            "identifier": "keyword", "label": "<spring:message code="datatable_ff_keyword_label"/> ", "column": 0, "maxlength": 50
+                        },
+                        {
+                            "identifier": "period", "label": "<spring:message code="datatable_ff_period_label"/> ", "column": 7, "maxlength": 30,
+                            "regexreplace": {"match": "/,\s*/gi", "replacement": " "},
+                            "instructions": "<spring:message code="datatable_ff_period_instructions"/>"
+                        }
+                    ]
+                });
+
+                // add sort logic
+                setSort(i,sortParams,wrapper);
+
+                // reset cloumn widths on run tables (datatables seems to change these)
+                $('.runHeader').width(215);
+                $('.studentHeader').width(145);
+                $('.teacherHeader').width(115);
+                $('.toolsHeader').width(170);
+
+                oTable.fnSort( [ [7,'desc'] ] );
+            }
+
+            // Make top header scroll with page
+            var $stickyEl = $('.dataTables_wrapper .top');
+            if($stickyEl.length>0){
+                var elTop = $stickyEl.offset().top,
+                        width = $stickyEl.width();
+                $(window).scroll(function() {
+                    var windowTop = $(window).scrollTop();
+                    if (windowTop > elTop) {
+                        $stickyEl.addClass('sticky');
+                        $stickyEl.css('width',width);
+                    } else {
+                        $stickyEl.removeClass('sticky');
+                        $stickyEl.css('width','auto');
+                    }
+                });
+            }
+        });
+    </script>
 </head>
 <body>
 <div id="pageWrapper">
-	<div id="page">
-		
-		<div id="pageContent">
+    <div id="page">
+
+        <div id="pageContent">
+
+            <h5 style="color:#0000CC;"><a href="${contextPath}/admin"><spring:message code="returnToMainAdminPage" /></a></h5>
+
+            <div class="contentPanel">
+                <div class="panelHeader"><spring:message code="teacher.index.gradeAndManageClassroomRuns"/>
+                    <span class="pageTitle"><spring:message code="header_location_admin"/></span>
+                </div>
 
-		<h5 style="color:#0000CC;"><a href="${contextPath}/admin"><spring:message code="returnToMainAdminPage" /></a></h5>
+                <div class="panelContent">
+                    <table id="currentRunTable" class="runTable" border="1" cellpadding="0" cellspacing="0">
+                        <thead>
+                        <tr>
+                            <th style="width:220px;" class="tableHeaderMain runHeader"><spring:message code="teacher.management.projectruntabs.active_header" /></th>
+                            <th style="width:155px;" class="tableHeaderMain studentHeader"><spring:message code="teacher.management.projectruntabs.studentManagement" /></th>
+                            <th style="width:285px;" class="tableHeaderMain toolsHeader"><spring:message code="teacher.management.projectruntabs.tools" /></th>
+                            <th style="display:none;" class="tableHeaderMain">run created</th>
+                            <th style="display:none;" class="tableHeaderMain">run ended</th>
+                            <th style="display:none;" class="tableHeaderMain">source</th>
+                            <th style="display:none;" class="tableHeaderMain">ownership</th>
+                            <th style="display:none;" class="tableHeaderMain">periods</th>
+                        </tr>
+                        </thead>
+                        <tbody>
+                        <c:if test="${fn:length(runList) > 0}">
+                            <c:forEach var="run" items="${runList}">
+                                <tr id="runTitleRow_${run.id}" class="runRow">
+                                    <td>
+                                        <div class="runTitle">${run.name}</div>
+                                        <c:set var="ownership" value="owned" />
+                                        <c:forEach var="sharedowner" items="${run.sharedowners}">
+                                            <c:if test="${sharedowner == user}">
+                                                <!-- the project run is shared with the logged-in user. -->
+                                                <c:set var="ownership" value="shared" />
+                                                <div class="sharedIcon">
+                                                    <img src="${contextPath}/<spring:theme code="shared"/>" alt="shared project" /> <spring:message code="teacher.management.projectruntabs.ownedBy"/>
+                                                        ${run.owner.userDetails.firstname} ${run.owner.userDetails.lastname}
+                                                </div>
+                                                <!-- let the user unshare self from the run. -->
+                                                <a class="unshare" onClick="unshareFromRun('${run.id}','<spring:escapeBody javaScriptEscape="true">${run.name}</spring:escapeBody>');"><spring:message code="teacher.management.projectruntabs.unshare"/></a>
+                                            </c:if>
+                                        </c:forEach>
 
-			<div class="contentPanel">
-				<div class="panelHeader"><spring:message code="teacher.index.gradeAndManageClassroomRuns"/>
-					<span class="pageTitle"><spring:message code="header_location_admin"/></span>
-				</div>
-				
-				<div class="panelContent">
-					<table id="currentRunTable" class="runTable" border="1" cellpadding="0" cellspacing="0">
-						<thead>
-						    <tr>
-						       <th style="width:220px;" class="tableHeaderMain runHeader"><spring:message code="teacher.management.projectruntabs.active_header" /></th>
-						       <th style="width:155px;" class="tableHeaderMain studentHeader"><spring:message code="teacher.management.projectruntabs.studentManagement" /></th>      
-						       <th style="width:285px;" class="tableHeaderMain toolsHeader"><spring:message code="teacher.management.projectruntabs.tools" /></th>
-						       <th style="display:none;" class="tableHeaderMain">run created</th>
-						       <th style="display:none;" class="tableHeaderMain">run ended</th>
-						       <th style="display:none;" class="tableHeaderMain">source</th>
-						       <th style="display:none;" class="tableHeaderMain">ownership</th>
-						       <th style="display:none;" class="tableHeaderMain">periods</th>
-						    </tr>
-						</thead>
-						<tbody>
-						  <c:if test="${fn:length(runList) > 0}">
-							  <c:forEach var="run" items="${runList}">
-							  <tr id="runTitleRow_${run.id}" class="runRow">
-							    <td>
-							    	<div class="runTitle">${run.name}</div>
-							    		<c:set var="ownership" value="owned" />
-										<c:forEach var="sharedowner" items="${run.sharedowners}">
-								    	    <c:if test="${sharedowner == user}">
-								    	    	<!-- the project run is shared with the logged-in user. -->
-								    	    	<c:set var="ownership" value="shared" />
-								    	    	<div class="sharedIcon">
-									    	    	<img src="${contextPath}/<spring:theme code="shared"/>" alt="shared project" /> <spring:message code="teacher.management.projectruntabs.ownedBy"/>
-								    	    		${run.owner.userDetails.firstname} ${run.owner.userDetails.lastname}
-								    	    	</div>
-								    	    	<!-- let the user unshare self from the run. -->
-								    	    	<a class="unshare" onClick="unshareFromRun('${run.id}','<spring:escapeBody javaScriptEscape="true">${run.name}</spring:escapeBody>');"><spring:message code="teacher.management.projectruntabs.unshare"/></a>
-								    	    </c:if>
-								    	</c:forEach>
-							     
-									<table class="runTitleTable">
-										    <tr>
-										    	<th><spring:message code="teacher.management.projectruntabs.ownedBy" /></th>
-												<td>
-									    	    	${run.owner.userDetails.firstname} ${run.owner.userDetails.lastname}
-									    	    </td>
-							      			<tr>
-												<th><spring:message code="run_accessCode" /></th>
-												<td class="accesscode">${run.runcode}</td>
-											</tr>
-							      			<tr>
-							      				<th><spring:message code="run_id_label" /></th>
-							      				<td>${run.id}</td>
-							      			</tr>
-							      			<tr>
-							      				<th><spring:message code="teacher.management.projectruntabs.created"/></th>
-							      				<td><fmt:formatDate value="${run.starttime}" type="date" dateStyle="medium" /></td>
-							      			</tr>
-							      				<c:set var="source" value="custom" />
-							      				<c:if test="${run.project.familytag == 'TELS'}"> <!-- TODO: modify this to show when a run was generated from a library project -->
-								      				<c:set var="source" value="library" />
-							      				</c:if>
-											<tr>
-							      				<th><spring:message code="project_id"/></th>
-							      				<td><a id="projectDetail_${run.project.id}" class="projectDetail" title="<spring:message code="project_details"/>">${run.project.id}</a></td>
-							      			</tr>
-							      			<tr>
-							      				<c:if test="${run.project.parentProjectId != null}">
-							      				<th><spring:message code="teacher.management.projectruntabs.copyLabel"/></th>
-												<td><a id="projectDetail_${run.project.parentProjectId}" class="projectDetail" title="<spring:message code="project_details"/>">${run.project.parentProjectId}</a></td>
-												</c:if>
-							      			</tr>
-							      				<tr>
-							      					<td colspan="2" style="padding-top:.5em;">
-							      						<a id="editRun_${run.id}" class="editRun" title="<spring:message code="teacher.management.projectruntabs.editSettings"/>: ${run.name} (<spring:message code="run_id"/> ${run.id})"><img class="icon" alt="settings" src="${contextPath}/<spring:theme code="processing"/>" /><span><spring:message code="teacher.management.projectruntabs.editSettings"/></span></a>
-							      					</td>
-							      				</tr>
-									</table>
-								</td>
-							    <td style="padding:.5em 0;" >
-							    	<table class="currentRunInfoTable" border="0" cellpadding="0" cellspacing="0">
-							          <tr>
-							            <th class="tableInnerHeader"><spring:message code="run_period"/></th>
-							            <th class="tableInnerHeader"><spring:message code="student_cap_plural"/></th>
-							          </tr>
-							          <c:forEach var="period" items="${run.periods}">
-							            <tr>
-							              <td style="width:35%;" class="tableInnerData">${period.name}</td>
-							              <td style="width:65%;" class="tableInnerDataRight">
-				 	                    			<a class="manageStudents" title="<spring:message code="teacher.management.projectruntabs.manageStudents"/>: ${run.name} (<spring:message code="run_id"/> ${run.id})" id="runId=${run.id}&periodName=${period.name}">${fn:length(period.members)}&nbsp;<spring:message code="teacher.management.projectruntabs.registered"/></a>
-							              </td>
-							            </tr>
-							          </c:forEach>
-				 	                    <tr><td colspan="2" class="manageStudentGroups"><a class="manageStudents" title="<spring:message code="teacher.management.projectruntabs.manageStudents"/>: ${run.name} (<spring:message code="run_id"/> ${run.id})" id="runId=${run.id}"><img class="icon" alt="groups" src="${contextPath}/<spring:theme code="connected"/>" /><span><spring:message code="teacher.management.projectruntabs.manageStudents"/></span></a></td></tr>
-							        </table>
-							    </td> 
-							    <td>
+                                        <table class="runTitleTable">
+                                            <tr>
+                                                <th><spring:message code="teacher.management.projectruntabs.ownedBy" /></th>
+                                                <td>
+                                                        ${run.owner.userDetails.firstname} ${run.owner.userDetails.lastname}
+                                                </td>
+                                            <tr>
+                                                <th><spring:message code="run_accessCode" /></th>
+                                                <td class="accesscode">${run.runcode}</td>
+                                            </tr>
+                                            <tr>
+                                                <th><spring:message code="run_id_label" /></th>
+                                                <td>${run.id}</td>
+                                            </tr>
+                                            <tr>
+                                                <th><spring:message code="teacher.management.projectruntabs.created"/></th>
+                                                <td><fmt:formatDate value="${run.starttime}" type="date" dateStyle="medium" /></td>
+                                            </tr>
+                                            <c:set var="source" value="custom" />
+                                            <c:if test="${run.project.familytag == 'TELS'}"> <!-- TODO: modify this to show when a run was generated from a library project -->
+                                                <c:set var="source" value="library" />
+                                            </c:if>
+                                            <tr>
+                                                <th><spring:message code="project_id"/></th>
+                                                <td><a id="projectDetail_${run.project.id}" class="projectDetail" title="<spring:message code="project_details"/>">${run.project.id}</a></td>
+                                            </tr>
+                                            <tr>
+                                                <c:if test="${run.project.parentProjectId != null}">
+                                                    <th><spring:message code="teacher.management.projectruntabs.copyLabel"/></th>
+                                                    <td><a id="projectDetail_${run.project.parentProjectId}" class="projectDetail" title="<spring:message code="project_details"/>">${run.project.parentProjectId}</a></td>
+                                                </c:if>
+                                            </tr>
+                                            <tr>
+                                                <td colspan="2" style="padding-top:.5em;">
+                                                    <a id="editRun_${run.id}" class="editRun" title="<spring:message code="teacher.management.projectruntabs.editSettings"/>: ${run.name} (<spring:message code="run_id"/> ${run.id})"><img class="icon" alt="settings" src="${contextPath}/<spring:theme code="processing"/>" /><span><spring:message code="teacher.management.projectruntabs.editSettings"/></span></a>
+                                                </td>
+                                            </tr>
+                                        </table>
+                                    </td>
+                                    <td style="padding:.5em 0;" >
+                                        <table class="currentRunInfoTable" border="0" cellpadding="0" cellspacing="0">
+                                            <tr>
+                                                <th class="tableInnerHeader"><spring:message code="run_period"/></th>
+                                                <th class="tableInnerHeader"><spring:message code="student_cap_plural"/></th>
+                                            </tr>
+                                            <c:forEach var="period" items="${run.periods}">
+                                                <tr>
+                                                    <td style="width:35%;" class="tableInnerData">${period.name}</td>
+                                                    <td style="width:65%;" class="tableInnerDataRight">
+                                                        <a class="manageStudents" title="<spring:message code="teacher.management.projectruntabs.manageStudents"/>: ${run.name} (<spring:message code="run_id"/> ${run.id})" id="runId=${run.id}&periodName=${period.name}">${fn:length(period.members)}&nbsp;<spring:message code="teacher.management.projectruntabs.registered"/></a>
+                                                    </td>
+                                                </tr>
+                                            </c:forEach>
+                                            <tr><td colspan="2" class="manageStudentGroups"><a class="manageStudents" title="<spring:message code="teacher.management.projectruntabs.manageStudents"/>: ${run.name} (<spring:message code="run_id"/> ${run.id})" id="runId=${run.id}"><img class="icon" alt="groups" src="${contextPath}/<spring:theme code="connected"/>" /><span><spring:message code="teacher.management.projectruntabs.manageStudents"/></span></a></td></tr>
+                                        </table>
+                                    </td>
+                                    <td>
 
-							   <ul class="actionList">
-									<li><a class="classroomMonitor" wiseVersion="${run.project.wiseVersion == null ? 4 : run.project.wiseVersion}" runId="${run.id}" title="<spring:message code="teacher.management.projectruntabs.monitorTitle"/> ${run.name} (<spring:message code="run_id"/> ${run.id})" id="runId=${run.id}&gradingType=monitor"><img class="icon" alt="monitor" src="${contextPath}/<spring:theme code="bar_chart"/>" /><span><spring:message code="teacher.management.projectruntabs.gradingTool"/></span></a></li>
-				               </ul>
-				               <ul class="actionList">
-							        <li>
-							        	<spring:message code="teacher.management.projectruntabs.projectLabel"/>&nbsp;<a href="${contextPath}/previewproject.html?projectId=${run.project.id}" target="_blank"><img class="icon" alt="preview" src="${contextPath}/<spring:theme code="screen"/>" /><span><spring:message code="preview"/></span></a>
-						    			|&nbsp;<a id="projectInfo_${run.project.id}" class="projectInfo" title="<spring:message code="project_details"/>"><img class="icon" alt="info" src="${contextPath}/<spring:theme code="id"/>" /><span><spring:message code="teacher.management.projectruntabs.projectInfo"/></span></a>
-							        	|&nbsp;<a onclick="if(confirm('<spring:message code="teacher.management.projectruntabs.editWarning"/>')){window.top.location='${contextPath}/author/authorproject.html?projectId=${run.project.id}';} return true;"><img class="icon" alt="edit" src="${contextPath}/<spring:theme code="edit"/>" /><span><spring:message code="teacher.management.projectruntabs.edit"/></span></a>
-							        </li>
-							    </ul>
-									<ul class="actionList">
-				   					    <li><a id="shareRun_${run.id}" class="shareRun" title="<spring:message code="teacher.management.projectruntabs.sharingPermissionsTitle"/> ${run.name} (<spring:message code="run_id"/> ${run.id})"><img class="icon" alt="share" src="${contextPath}/<spring:theme code="agent"/>" /><span><spring:message code="teacher.management.projectruntabs.sharingPermissions"/></span></a></li> 
-								      	<li><a id="editAnnouncements_${run.id}" class="editAnnouncements" title="<spring:message code="teacher.management.projectruntabs.announcementsTitle"/> ${run.name} (<spring:message code="run_id"/> ${run.id})" ><img class="icon" alt="announcements" src="${contextPath}/<spring:theme code="chat"/>" /><spring:message code="teacher.management.projectruntabs.announcements"/></a></li>
-										<c:if test="${run.project.wiseVersion == null || run.project.wiseVersion == 4}">
-											<li><a class="researchTools" title="<spring:message code="teacher.management.projectruntabs.researcherTools"/>: ${run.name} (<spring:message code="run_id"/> ${run.id})" id="runId=${run.id}&gradingType=export"><img class="icon" alt="export" src="${contextPath}/<spring:theme code="save"/>" /><span><spring:message code="teacher.management.projectruntabs.researcherTools"/> <spring:message code="teacher.management.projectruntabs.exportStudentData"/></span></a></li>
-										</c:if>
-										<li><a href="${contextPath}//contact/contactwise.html?projectId=${run.project.id}&runId=${run.id}"><img class="icon" alt="contact" src="${contextPath}/<spring:theme code="email"/>" /><span><spring:message code="teacher.management.projectruntabs.reportProblem"/></span></a></li>
-	  						    	    <li><a class="archiveRun" id="archiveRun_runId=${run.id}&runName=<c:out value="${fn:escapeXml(run.name)}" />" title="<spring:message code="teacher.management.projectruntabs.archive_title"/> ${run.name} (<spring:message code="run_id"/> ${run.id})"><img class="icon" alt="archive" src="${contextPath}/<spring:theme code="lock"/>" /><span><spring:message code="teacher.management.projectruntabs.archive"/></span></a></li>
-								    </ul>
-								</td>
-								<td style="display:none;">${run.starttime}</td>
-								<td style="display:none;"></td>
-								<td style="display:none;">${source}</td>
-								<td style="display:none;">${ownership}</td>
-								<td style="display:none;">
-									<c:forEach var="period" items="${run.periods}">${period.name},</c:forEach>
-							   </td>
-							   </tr>
-							  </c:forEach>
-							</c:if>
-						</tbody>
-					</table>
-				</div>
-			</div>
-		</div>
-	</div>
-	<%@ include file="../../footer.jsp"%>
+                                        <ul class="actionList">
+                                            <li><a class="classroomMonitor" wiseVersion="${run.project.wiseVersion == null ? 4 : run.project.wiseVersion}" runId="${run.id}" title="<spring:message code="teacher.management.projectruntabs.monitorTitle"/> ${run.name} (<spring:message code="run_id"/> ${run.id})" id="runId=${run.id}&gradingType=monitor"><img class="icon" alt="monitor" src="${contextPath}/<spring:theme code="bar_chart"/>" /><span><spring:message code="teacher.management.projectruntabs.gradingTool"/></span></a></li>
+                                        </ul>
+                                        <ul class="actionList">
+                                            <li>
+                                                <spring:message code="teacher.management.projectruntabs.projectLabel"/>&nbsp;<a href="${contextPath}/previewproject.html?projectId=${run.project.id}" target="_blank"><img class="icon" alt="preview" src="${contextPath}/<spring:theme code="screen"/>" /><span><spring:message code="preview"/></span></a>
+                                                |&nbsp;<a id="projectInfo_${run.project.id}" class="projectInfo" title="<spring:message code="project_details"/>"><img class="icon" alt="info" src="${contextPath}/<spring:theme code="id"/>" /><span><spring:message code="teacher.management.projectruntabs.projectInfo"/></span></a>
+                                                |&nbsp;<a onclick="if(confirm('<spring:message code="teacher.management.projectruntabs.editWarning"/>')){window.top.location='${contextPath}/author/authorproject.html?projectId=${run.project.id}';} return true;"><img class="icon" alt="edit" src="${contextPath}/<spring:theme code="edit"/>" /><span><spring:message code="teacher.management.projectruntabs.edit"/></span></a>
+                                            </li>
+                                        </ul>
+                                        <ul class="actionList">
+                                            <li><a id="shareRun_${run.id}" class="shareRun" title="<spring:message code="teacher.management.projectruntabs.sharingPermissionsTitle"/> ${run.name} (<spring:message code="run_id"/> ${run.id})"><img class="icon" alt="share" src="${contextPath}/<spring:theme code="agent"/>" /><span><spring:message code="teacher.management.projectruntabs.sharingPermissions"/></span></a></li>
+                                            <li><a id="editAnnouncements_${run.id}" class="editAnnouncements" title="<spring:message code="teacher.management.projectruntabs.announcementsTitle"/> ${run.name} (<spring:message code="run_id"/> ${run.id})" ><img class="icon" alt="announcements" src="${contextPath}/<spring:theme code="chat"/>" /><spring:message code="teacher.management.projectruntabs.announcements"/></a></li>
+                                            <c:if test="${run.project.wiseVersion == null || run.project.wiseVersion == 4}">
+                                                <li><a class="researchTools" title="<spring:message code="teacher.management.projectruntabs.researcherTools"/>: ${run.name} (<spring:message code="run_id"/> ${run.id})" id="runId=${run.id}&gradingType=export"><img class="icon" alt="export" src="${contextPath}/<spring:theme code="save"/>" /><span><spring:message code="teacher.management.projectruntabs.researcherTools"/> <spring:message code="teacher.management.projectruntabs.exportStudentData"/></span></a></li>
+                                            </c:if>
+                                            <li><a href="${contextPath}//contact/contactwise.html?projectId=${run.project.id}&runId=${run.id}"><img class="icon" alt="contact" src="${contextPath}/<spring:theme code="email"/>" /><span><spring:message code="teacher.management.projectruntabs.reportProblem"/></span></a></li>
+                                            <li><a class="archiveRun" id="archiveRun_runId=${run.id}&runName=<c:out value="${fn:escapeXml(run.name)}" />" title="<spring:message code="teacher.management.projectruntabs.archive_title"/> ${run.name} (<spring:message code="run_id"/> ${run.id})"><img class="icon" alt="archive" src="${contextPath}/<spring:theme code="lock"/>" /><span><spring:message code="teacher.management.projectruntabs.archive"/></span></a></li>
+                                        </ul>
+                                    </td>
+                                    <td style="display:none;">${run.starttime}</td>
+                                    <td style="display:none;"></td>
+                                    <td style="display:none;">${source}</td>
+                                    <td style="display:none;">${ownership}</td>
+                                    <td style="display:none;">
+                                        <c:forEach var="period" items="${run.periods}">${period.name},</c:forEach>
+                                    </td>
+                                </tr>
+                            </c:forEach>
+                        </c:if>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+        </div>
+    </div>
+    <%@ include file="../../footer.jsp"%>
 </div>
 
 <div id="gradingDialog" class="dialog"></div>
@@ -485,4 +485,4 @@
 <div id="projectDetailDialog" style="overflow:hidden;" class="dialog"></div>
 <div id="archiveRunDialog" style="overflow:hidden;" class="dialog"></div>
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/src/main/webapp/portal/author.jsp b/src/main/webapp/portal/author.jsp
index 9e8412027d..a8043e5c01 100644
--- a/src/main/webapp/portal/author.jsp
+++ b/src/main/webapp/portal/author.jsp
@@ -12,7 +12,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <%@ include file="favicon.jsp"%>
         <script src="${contextPath}/wise5/jspm_packages/system.js"></script>
-        <script src="${contextPath}/wise5/config.js"></script>
+        <script src="${contextPath}/wise5/config.js?v=5.7.6"></script>
         <script>
             System.import('${contextPath}/wise5/authoringTool/bootstrap');
         </script>
diff --git a/src/main/webapp/portal/classroomMonitor.jsp b/src/main/webapp/portal/classroomMonitor.jsp
index c1904e25e6..42b5964854 100644
--- a/src/main/webapp/portal/classroomMonitor.jsp
+++ b/src/main/webapp/portal/classroomMonitor.jsp
@@ -12,7 +12,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <%@ include file="favicon.jsp"%>
         <script src="${contextPath}/wise5/jspm_packages/system.js"></script>
-        <script src="${contextPath}/wise5/config.js"></script>
+        <script src="${contextPath}/wise5/config.js?v=5.7.6"></script>
         <script>
             System.import('${contextPath}/wise5/classroomMonitor/bootstrap');
         </script>
diff --git a/src/main/webapp/portal/student.jsp b/src/main/webapp/portal/student.jsp
index 84a554e197..9aadbd9e65 100644
--- a/src/main/webapp/portal/student.jsp
+++ b/src/main/webapp/portal/student.jsp
@@ -13,7 +13,7 @@
 		<%@ include file="favicon.jsp"%>
 		<link rel="apple-touch-icon" href="apple-touch-icon.png">
 	    <script src="${contextPath}/wise5/jspm_packages/system.js"></script>
-    	<script src="${contextPath}/wise5/config.js"></script>
+    	<script src="${contextPath}/wise5/config.js?v=5.7.6"></script>
 		<script>
         	System.import('${contextPath}/wise5/vle/bootstrap');
 	    </script>
diff --git a/src/main/webapp/wise5/authoringTool/authoringToolController.es6 b/src/main/webapp/wise5/authoringTool/authoringToolController.es6
index 4f027362c9..f2a03c1645 100644
--- a/src/main/webapp/wise5/authoringTool/authoringToolController.es6
+++ b/src/main/webapp/wise5/authoringTool/authoringToolController.es6
@@ -266,6 +266,11 @@ class AuthoringToolController {
     } else {
       this.projectTitle = null;
     }
+    this.turnOffJSONValidMessage();
+  }
+
+  turnOffJSONValidMessage() {
+    this.$rootScope.$broadcast('setIsJSONValid', { isJSONValid: null });
   }
 
   /**
diff --git a/src/main/webapp/wise5/authoringTool/authoringToolController.js b/src/main/webapp/wise5/authoringTool/authoringToolController.js
index 17da20da6b..43229ce03d 100644
--- a/src/main/webapp/wise5/authoringTool/authoringToolController.js
+++ b/src/main/webapp/wise5/authoringTool/authoringToolController.js
@@ -252,6 +252,12 @@ var AuthoringToolController = function () {
       } else {
         this.projectTitle = null;
       }
+      this.turnOffJSONValidMessage();
+    }
+  }, {
+    key: 'turnOffJSONValidMessage',
+    value: function turnOffJSONValidMessage() {
+      this.$rootScope.$broadcast('setIsJSONValid', { isJSONValid: null });
     }
 
     /**
diff --git a/src/main/webapp/wise5/authoringTool/authoringToolController.js.map b/src/main/webapp/wise5/authoringTool/authoringToolController.js.map
index ee9ef40ad6..9f039190b1 100644
--- a/src/main/webapp/wise5/authoringTool/authoringToolController.js.map
+++ b/src/main/webapp/wise5/authoringTool/authoringToolController.js.map
@@ -1 +1 @@
-{"version":3,"sources":["authoringToolController.es6"],"names":["AuthoringToolController","$anchorScroll","$filter","$location","$mdDialog","$rootScope","$scope","$state","$timeout","ConfigService","ProjectService","SessionService","TeacherDataService","$translate","numberProject","isMenuOpen","views","id","name","label","icon","type","showToolbar","active","logoPath","getThemePath","processUI","$on","event","toState","toParams","fromState","fromParams","confirm","parent","angular","element","document","body","title","content","ariaLabel","ok","cancel","show","then","renewSession","forceLogOut","ev","alert","textContent","targetEvent","setGlobalMessage","Date","getTime","params","stateParams","isPopup","projectId","nodeId","componentId","target","targetObject","templateUrl","controller","controllerAs","$stateParams","clickOutsideToClose","escapeToClose","saveEvent","current","showStepTools","$current","view","currentViewName","getProjectId","runId","getRunId","projectTitle","getProjectTitle","url","mouseMoved","notifyAuthorProjectEnd","wiseBaseURL","getWISEBaseURL","window","location","message","time","globalMessage","text","$broadcast","eventName","category","context","componentType","data","$inject"],"mappings":"AAAA;;;;;;;;;;IAEMA,uB;AAEJ,mCACIC,aADJ,EAEIC,OAFJ,EAGIC,SAHJ,EAIIC,SAJJ,EAKIC,UALJ,EAMIC,MANJ,EAOIC,MAPJ,EAQIC,QARJ,EASIC,aATJ,EAUIC,cAVJ,EAWIC,cAXJ,EAYIC,kBAZJ,EAYwB;AAAA;;AAAA;;AACtB,SAAKX,aAAL,GAAqBA,aAArB;AACA,SAAKC,OAAL,GAAeA,OAAf;AACA,SAAKC,SAAL,GAAiBA,SAAjB;AACA,SAAKC,SAAL,GAAiBA,SAAjB;AACA,SAAKC,UAAL,GAAkBA,UAAlB;AACA,SAAKC,MAAL,GAAcA,MAAd;AACA,SAAKC,MAAL,GAAcA,MAAd;AACA,SAAKC,QAAL,GAAgBA,QAAhB;AACA,SAAKK,UAAL,GAAkB,KAAKX,OAAL,CAAa,WAAb,CAAlB;AACA,SAAKO,aAAL,GAAqBA,aAArB;AACA,SAAKC,cAAL,GAAsBA,cAAtB;AACA,SAAKC,cAAL,GAAsBA,cAAtB;AACA,SAAKC,kBAAL,GAA0BA,kBAA1B;;AAEA,SAAKE,aAAL,GAAqB,IAArB,CAfsB,CAeK;AAC3B,SAAKC,UAAL,GAAkB,KAAlB;;AAEA;AACA,SAAKC,KAAL,GAAa;AACX,sBAAgB;AACdC,YAAI,mBADU;AAEdC,cAAM,KAAKL,UAAL,CAAgB,aAAhB,CAFQ;AAGdM,eAAO,KAAKN,UAAL,CAAgB,aAAhB,CAHO;AAIdO,cAAM,MAJQ;AAKdC,cAAM,SALQ;AAMdC,qBAAa,IANC;AAOdC,gBAAQ;AAPM,OADL;AAUX,+BAAyB;AACvBN,YAAI,gBADmB;AAEvBC,cAAM,KAAKL,UAAL,CAAgB,kBAAhB,CAFiB;AAGvBM,eAAO,KAAKN,UAAL,CAAgB,kBAAhB,CAHgB;AAIvBO,cAAM,MAJiB;AAKvBC,cAAM,SALiB;AAMvBC,qBAAa,IANU;AAOvBC,gBAAQ;AAPe,OAVd;AAmBX,4BAAsB;AACpBN,YAAI,aADgB;AAEpBC,cAAM,KAAKL,UAAL,CAAgB,aAAhB,CAFc;AAGpBM,eAAO,KAAKN,UAAL,CAAgB,aAAhB,CAHa;AAIpBO,cAAM,aAJc;AAKpBC,cAAM,SALc;AAMpBC,qBAAa,IANO;AAOpBC,gBAAQ;AAPY,OAnBX;AA4BX,2BAAqB;AACnBN,YAAI,YADe;AAEnBC,cAAM,KAAKL,UAAL,CAAgB,cAAhB,CAFa;AAGnBM,eAAO,KAAKN,UAAL,CAAgB,cAAhB,CAHY;AAInBO,cAAM,MAJa;AAKnBC,cAAM,SALa;AAMnBC,qBAAa,IANM;AAOnBC,gBAAQ;AAPW,OA5BV;AAqCX,mBAAa;AACXN,YAAI,mBADO;AAEXC,cAAM,KAAKL,UAAL,CAAgB,cAAhB,CAFK;AAGXM,eAAO,KAAKN,UAAL,CAAgB,cAAhB,CAHI;AAIXO,cAAM,SAJK;AAKXC,cAAM,SALK;AAMXC,qBAAa,KANF;AAOXC,gBAAQ;AAPG,OArCF;AA8CX,2BAAqB;AACnBL,cAAM,EADa;AAEnBC,eAAO,EAFY;AAGnBC,cAAM,EAHa;AAInBC,cAAM,WAJa;AAKnBC,qBAAa,IALM;AAMnBC,gBAAQ;AANW,OA9CV;AAsDX,sCAAgC;AAC9BL,cAAM,EADwB;AAE9BC,eAAO,EAFuB;AAG9BC,cAAM,EAHwB;AAI9BC,cAAM,WAJwB;AAK9BC,qBAAa,IALiB;AAM9BC,gBAAQ;AANsB,OAtDrB;AA8DX,oCAA8B;AAC5BL,cAAM,EADsB;AAE5BC,eAAO,EAFqB;AAG5BC,cAAM,EAHsB;AAI5BC,cAAM,WAJsB;AAK5BC,qBAAa,IALe;AAM5BC,gBAAQ;AANoB;AA9DnB,KAAb;;AAwEA,SAAKC,QAAL,GAAgB,KAAKd,cAAL,CAAoBe,YAApB,KAAqC,8BAArD;AACA,SAAKC,SAAL;;AAEA;AACA,SAAKpB,MAAL,CAAYqB,GAAZ,CAAgB,qBAAhB,EACI,UAACC,KAAD,EAAQC,OAAR,EAAiBC,QAAjB,EAA2BC,SAA3B,EAAsCC,UAAtC,EAAqD;AACvD,YAAKjB,UAAL,GAAkB,KAAlB;AACA,YAAKW,SAAL;AACD,KAJD;;AAMApB,WAAOqB,GAAP,CAAW,oBAAX,EAAiC,YAAM;AACrC,UAAIM,UAAU,MAAK7B,SAAL,CAAe6B,OAAf,GACTC,MADS,CACFC,QAAQC,OAAR,CAAgBC,SAASC,IAAzB,CADE,EAETC,KAFS,CAEH,MAAK1B,UAAL,CAAgB,gBAAhB,CAFG,EAGT2B,OAHS,CAGD,MAAK3B,UAAL,CAAgB,mBAAhB,CAHC,EAIT4B,SAJS,CAIC,MAAK5B,UAAL,CAAgB,gBAAhB,CAJD,EAKT6B,EALS,CAKN,MAAK7B,UAAL,CAAgB,KAAhB,CALM,EAMT8B,MANS,CAMF,MAAK9B,UAAL,CAAgB,IAAhB,CANE,CAAd;AAOA,YAAKT,SAAL,CAAewC,IAAf,CAAoBX,OAApB,EAA6BY,IAA7B,CAAkC,YAAM;AACtC,cAAKlC,cAAL,CAAoBmC,YAApB;AACD,OAFD,EAEG,YAAM;AACP,cAAKnC,cAAL,CAAoBoC,WAApB;AACD,OAJD;AAKD,KAbD;;AAeA;AACA,SAAKzC,MAAL,CAAYqB,GAAZ,CAAgB,mBAAhB,EAAqC,UAACqB,EAAD,EAAQ;AAC3C,UAAIC,QAAQ,MAAK7C,SAAL,CAAe6B,OAAf,GACPC,MADO,CACAC,QAAQC,OAAR,CAAgBC,SAASC,IAAzB,CADA,EAEPC,KAFO,CAED,MAAK1B,UAAL,CAAgB,cAAhB,CAFC,EAGPqC,WAHO,CAGK,MAAKrC,UAAL,CAAgB,kCAAhB,CAHL,EAIP4B,SAJO,CAIG,MAAK5B,UAAL,CAAgB,cAAhB,CAJH,EAKPsC,WALO,CAKKH,EALL,EAMPN,EANO,CAMJ,MAAK7B,UAAL,CAAgB,IAAhB,CANI,CAAZ;;AAQA,YAAKT,SAAL,CAAewC,IAAf,CAAoBK,KAApB,EAA2BJ,IAA3B,CAAgC,YAAM;AACpC;AACD,OAFD,EAEG,YAAM;AACP;AACD,OAJD;AAKD,KAdD;;AAgBA;;;;;AAKA,SAAKvC,MAAL,CAAYqB,GAAZ,CAAgB,eAAhB,EAAiC,YAAM;AACrC,YAAKyB,gBAAL,CAAsB,MAAKvC,UAAL,CAAgB,QAAhB,CAAtB,EAAiD,IAAjD;AACD,KAFD;;AAIA;;;;AAIA,SAAKP,MAAL,CAAYqB,GAAZ,CAAgB,cAAhB,EAAgC,YAAM;;AAEpC;;;;;;;AAOA,YAAKnB,QAAL,CAAc,YAAM;AAClB,cAAK4C,gBAAL,CAAsB,MAAKvC,UAAL,CAAgB,OAAhB,CAAtB,EAAgD,IAAIwC,IAAJ,GAAWC,OAAX,EAAhD;AACD,OAFD,EAEG,GAFH;AAGD,KAZD;;AAcA;;;;AAIA,SAAKhD,MAAL,CAAYqB,GAAZ,CAAgB,kBAAhB,EAAoC,UAACC,KAAD,EAAQ2B,MAAR,EAAmB;AACrD;AACA,UAAMC,cAAc;AAChBC,iBAASF,OAAOE,OADA;AAEhBC,m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strict';\n\nclass AuthoringToolController {\n\n  constructor(\n      $anchorScroll,\n      $filter,\n      $location,\n      $mdDialog,\n      $rootScope,\n      $scope,\n      $state,\n      $timeout,\n      ConfigService,\n      ProjectService,\n      SessionService,\n      TeacherDataService) {\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$location = $location;\n    this.$mdDialog = $mdDialog;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$state = $state;\n    this.$timeout = $timeout;\n    this.$translate = this.$filter('translate');\n    this.ConfigService = ConfigService;\n    this.ProjectService = ProjectService;\n    this.SessionService = SessionService;\n    this.TeacherDataService = TeacherDataService;\n\n    this.numberProject = true; // TODO: make dynamic or remove\n    this.isMenuOpen = false;\n\n    // ui-views and their corresponding names, labels, and icons\n    this.views = {\n      'root.project': {\n        id: 'projectHomeButton',\n        name: this.$translate('projectHome'),\n        label: this.$translate('projectHome'),\n        icon: 'home',\n        type: 'primary',\n        showToolbar: true,\n        active: true\n      },\n      'root.project.notebook': {\n        id: 'notebookButton',\n        name: this.$translate('notebookSettings'),\n        label: this.$translate('notebookSettings'),\n        icon: 'book',\n        type: 'primary',\n        showToolbar: true,\n        active: true\n      },\n      'root.project.asset': {\n        id: 'assetButton',\n        name: this.$translate('fileManager'),\n        label: this.$translate('fileManager'),\n        icon: 'attach_file',\n        type: 'primary',\n        showToolbar: true,\n        active: true\n      },\n      'root.project.info': {\n        id: 'infoButton',\n        name: this.$translate('PROJECT_INFO'),\n        label: this.$translate('PROJECT_INFO'),\n        icon: 'info',\n        type: 'primary',\n        showToolbar: true,\n        active: true\n      },\n      'root.main': {\n        id: 'projectListButton',\n        name: this.$translate('projectsList'),\n        label: this.$translate('projectsList'),\n        icon: 'reorder',\n        type: 'primary',\n        showToolbar: false,\n        active: true\n      },\n      'root.project.node': {\n        name: '',\n        label: '',\n        icon: '',\n        type: 'secondary',\n        showToolbar: true,\n        active: false\n      },\n      'root.project.nodeConstraints': {\n        name: '',\n        label: '',\n        icon: '',\n        type: 'secondary',\n        showToolbar: true,\n        active: false\n      },\n      'root.project.nodeEditPaths': {\n        name: '',\n        label: '',\n        icon: '',\n        type: 'secondary',\n        showToolbar: true,\n        active: false\n      },\n    };\n\n    this.logoPath = this.ProjectService.getThemePath() + '/images/WISE-logo-ffffff.svg';\n    this.processUI();\n\n    // listen for state change events and close the menu\n    this.$scope.$on('$stateChangeSuccess',\n        (event, toState, toParams, fromState, fromParams) => {\n      this.isMenuOpen = false;\n      this.processUI();\n    });\n\n    $scope.$on('showSessionWarning', () => {\n      let confirm = this.$mdDialog.confirm()\n          .parent(angular.element(document.body))\n          .title(this.$translate('sessionTimeout'))\n          .content(this.$translate('autoLogoutMessage'))\n          .ariaLabel(this.$translate('sessionTimeout'))\n          .ok(this.$translate('yes'))\n          .cancel(this.$translate('no'));\n      this.$mdDialog.show(confirm).then(() => {\n        this.SessionService.renewSession();\n      }, () => {\n        this.SessionService.forceLogOut();\n      });\n    });\n\n    // alert user when they're inactive for a long time\n    this.$scope.$on('showRequestLogout', (ev) => {\n      let alert = this.$mdDialog.confirm()\n          .parent(angular.element(document.body))\n          .title(this.$translate('serverUpdate'))\n          .textContent(this.$translate('serverUpdateRequestLogoutMessage'))\n          .ariaLabel(this.$translate('serverUpdate'))\n          .targetEvent(ev)\n          .ok(this.$translate('ok'));\n\n      this.$mdDialog.show(alert).then(() => {\n        // do nothing\n      }, () => {\n        // do nothing\n      });\n    });\n\n    /*\n     * Listen for the savingProject event which means the authoring tool\n     * is in the process of saving the project and display this information\n     * globally.\n     */\n    this.$scope.$on('savingProject', () => {\n      this.setGlobalMessage(this.$translate('saving'), null);\n    });\n\n    /*\n     * Listen for the projectSaved event which means the project has just\n     * been saved to the server\n     */\n    this.$scope.$on('projectSaved', () => {\n\n      /*\n       * Wait half a second before changing the message to 'Saved' so that\n       * the 'Saving...' message stays up long enough for the author to\n       * see that the project is saving. If we don't perform this wait,\n       * it will always say 'Saved' and authors may wonder whether the\n       * project ever gets saved.\n       */\n      this.$timeout(() => {\n        this.setGlobalMessage(this.$translate('SAVED'), new Date().getTime());\n      }, 500);\n    });\n\n    /*\n     * Open the asset chooser to let the author insert an asset into the\n     * specified target\n     */\n    this.$scope.$on('openAssetChooser', (event, params) => {\n      // create the params for opening the asset chooser\n      const stateParams = {\n          isPopup: params.isPopup,\n          projectId: params.projectId,\n          nodeId: params.nodeId,\n          componentId: params.componentId,\n          target: params.target,\n          targetObject: params.targetObject\n      };\n\n      // open the dialog that will display the assets for the user to choose\n      this.$mdDialog.show({\n          templateUrl: 'wise5/authoringTool/asset/asset.html',\n          controller: 'ProjectAssetController',\n          controllerAs: 'projectAssetController',\n          $stateParams: stateParams,\n          clickOutsideToClose: true,\n          escapeToClose: true\n      });\n    });\n\n    /*\n     * Open the asset chooser to let the author insert an WISE Link into the\n     * specified target\n     */\n    this.$scope.$on('openWISELinkChooser', (event, params) => {\n      // create the params for opening the WISE Link authoring popup\n      const stateParams = {\n          projectId: params.projectId,\n          nodeId: params.nodeId,\n          componentId: params.componentId,\n          target: params.target\n      };\n\n      // open the WISE Link authoring popup\n      this.$mdDialog.show({\n          templateUrl: 'wise5/authoringTool/wiseLink/wiseLinkAuthoring.html',\n          controller: 'WISELinkAuthoringController',\n          controllerAs: 'wiseLinkAuthoringController',\n          $stateParams: stateParams,\n          clickOutsideToClose: true,\n          escapeToClose: true\n      });\n    });\n\n    this.$rootScope.$on('$stateChangeSuccess',\n        (event, toState, toParams, fromState, fromParams) => {\n      if (toState != null && toState.name == 'root.main') {\n        this.saveEvent('projectListViewed', 'Navigation');\n      }\n    });\n\n    if (this.$state.current.name == 'root.main') {\n      this.saveEvent('projectListViewed', 'Navigation');\n    }\n  }\n\n  /**\n   * Update UI items based on state, show or hide relevant menus and toolbars\n   * TODO: remove/rework this and put items in their own ui states?\n   */\n  processUI() {\n    // scroll to the top of the page\n    this.$anchorScroll('top');\n\n    // set current view and whether to show the toolbars and step tools\n    this.showStepTools = this.$state.$current.name === 'root.project' ||\n        this.$state.$current.name === 'root.project.node' ||\n        this.$state.$current.name === 'root.project.nodeConstraints' ||\n      this.$state.$current.name === 'root.project.nodeEditPaths';\n    const view = this.views[this.$state.$current.name];\n    if (view) {\n      this.currentViewName = view.name;\n      this.showToolbar = view.showToolbar;\n    } else {\n      this.currentViewName = '';\n      this.showToolbar = false;\n    }\n\n    this.projectId = this.ConfigService.getProjectId();\n    this.runId = this.ConfigService.getRunId();\n\n    if (this.projectId) {\n      this.projectTitle = this.ProjectService.getProjectTitle();\n    } else {\n      this.projectTitle = null;\n    }\n  }\n\n  /**\n   * Navigate the user to the My Projects page in the Authoring Tool\n   */\n  goToMyProjects() {\n    this.$location.url('/author');\n  }\n\n  /**\n   * Toggle the authoring tool main menu\n   */\n  toggleMenu() {\n    this.isMenuOpen = !this.isMenuOpen;\n  }\n\n  /**\n   * Notify Session to renew when user moves the mouse\n   */\n  mouseMoved() {\n    this.SessionService.mouseMoved();\n  }\n\n  exit() {\n    this.ProjectService.notifyAuthorProjectEnd().then(() => {\n      let wiseBaseURL = this.ConfigService.getWISEBaseURL();\n      window.location = wiseBaseURL + '/teacher';\n    });\n  }\n\n  /**\n   * Set the global message at the top right\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setGlobalMessage(message, time) {\n    const globalMessage = {\n      text: message,\n      time: time\n    };\n    this.$rootScope.$broadcast('setGlobalMessage', { globalMessage: globalMessage });\n  };\n\n  /**\n   * Save an Authoring Tool event\n   * @param eventName the name of the event\n   * @param category the category of the event\n   * example 'Navigation' or 'Authoring'\n   */\n  saveEvent(eventName, category) {\n    let context = 'AuthoringTool';\n    let nodeId = null;\n    let componentId = null;\n    let componentType = null;\n    let data = {};\n\n    this.TeacherDataService.saveEvent(context, nodeId, componentId,\n        componentType, category, eventName, data);\n  }\n}\n\nAuthoringToolController.$inject = [\n  '$anchorScroll',\n  '$filter',\n  '$location',\n  '$mdDialog',\n  '$rootScope',\n  '$scope',\n  '$state',\n  '$timeout',\n  'ConfigService',\n  'ProjectService',\n  'SessionService',\n  'TeacherDataService',\n  'moment'\n];\n\nexport default AuthoringToolController;\n"]}
\ No newline at end of file
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strict';\n\nclass AuthoringToolController {\n\n  constructor(\n      $anchorScroll,\n      $filter,\n      $location,\n      $mdDialog,\n      $rootScope,\n      $scope,\n      $state,\n      $timeout,\n      ConfigService,\n      ProjectService,\n      SessionService,\n      TeacherDataService) {\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$location = $location;\n    this.$mdDialog = $mdDialog;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$state = $state;\n    this.$timeout = $timeout;\n    this.$translate = this.$filter('translate');\n    this.ConfigService = ConfigService;\n    this.ProjectService = ProjectService;\n    this.SessionService = SessionService;\n    this.TeacherDataService = TeacherDataService;\n\n    this.numberProject = true; // TODO: make dynamic or remove\n    this.isMenuOpen = false;\n\n    // ui-views and their corresponding names, labels, and icons\n    this.views = {\n      'root.project': {\n        id: 'projectHomeButton',\n        name: this.$translate('projectHome'),\n        label: this.$translate('projectHome'),\n        icon: 'home',\n        type: 'primary',\n        showToolbar: true,\n        active: true\n      },\n      'root.project.notebook': {\n        id: 'notebookButton',\n        name: this.$translate('notebookSettings'),\n        label: this.$translate('notebookSettings'),\n        icon: 'book',\n        type: 'primary',\n        showToolbar: true,\n        active: true\n      },\n      'root.project.asset': {\n        id: 'assetButton',\n        name: this.$translate('fileManager'),\n        label: this.$translate('fileManager'),\n        icon: 'attach_file',\n        type: 'primary',\n        showToolbar: true,\n        active: true\n      },\n      'root.project.info': {\n        id: 'infoButton',\n        name: this.$translate('PROJECT_INFO'),\n        label: this.$translate('PROJECT_INFO'),\n        icon: 'info',\n        type: 'primary',\n        showToolbar: true,\n        active: true\n      },\n      'root.main': {\n        id: 'projectListButton',\n        name: this.$translate('projectsList'),\n        label: this.$translate('projectsList'),\n        icon: 'reorder',\n        type: 'primary',\n        showToolbar: false,\n        active: true\n      },\n      'root.project.node': {\n        name: '',\n        label: '',\n        icon: '',\n        type: 'secondary',\n        showToolbar: true,\n        active: false\n      },\n      'root.project.nodeConstraints': {\n        name: '',\n        label: '',\n        icon: '',\n        type: 'secondary',\n        showToolbar: true,\n        active: false\n      },\n      'root.project.nodeEditPaths': {\n        name: '',\n        label: '',\n        icon: '',\n        type: 'secondary',\n        showToolbar: true,\n        active: false\n      },\n    };\n\n    this.logoPath = this.ProjectService.getThemePath() + '/images/WISE-logo-ffffff.svg';\n    this.processUI();\n\n    // listen for state change events and close the menu\n    this.$scope.$on('$stateChangeSuccess',\n        (event, toState, toParams, fromState, fromParams) => {\n      this.isMenuOpen = false;\n      this.processUI();\n    });\n\n    $scope.$on('showSessionWarning', () => {\n      let confirm = this.$mdDialog.confirm()\n          .parent(angular.element(document.body))\n          .title(this.$translate('sessionTimeout'))\n          .content(this.$translate('autoLogoutMessage'))\n          .ariaLabel(this.$translate('sessionTimeout'))\n          .ok(this.$translate('yes'))\n          .cancel(this.$translate('no'));\n      this.$mdDialog.show(confirm).then(() => {\n        this.SessionService.renewSession();\n      }, () => {\n        this.SessionService.forceLogOut();\n      });\n    });\n\n    // alert user when they're inactive for a long time\n    this.$scope.$on('showRequestLogout', (ev) => {\n      let alert = this.$mdDialog.confirm()\n          .parent(angular.element(document.body))\n          .title(this.$translate('serverUpdate'))\n          .textContent(this.$translate('serverUpdateRequestLogoutMessage'))\n          .ariaLabel(this.$translate('serverUpdate'))\n          .targetEvent(ev)\n          .ok(this.$translate('ok'));\n\n      this.$mdDialog.show(alert).then(() => {\n        // do nothing\n      }, () => {\n        // do nothing\n      });\n    });\n\n    /*\n     * Listen for the savingProject event which means the authoring tool\n     * is in the process of saving the project and display this information\n     * globally.\n     */\n    this.$scope.$on('savingProject', () => {\n      this.setGlobalMessage(this.$translate('saving'), null);\n    });\n\n    /*\n     * Listen for the projectSaved event which means the project has just\n     * been saved to the server\n     */\n    this.$scope.$on('projectSaved', () => {\n\n      /*\n       * Wait half a second before changing the message to 'Saved' so that\n       * the 'Saving...' message stays up long enough for the author to\n       * see that the project is saving. If we don't perform this wait,\n       * it will always say 'Saved' and authors may wonder whether the\n       * project ever gets saved.\n       */\n      this.$timeout(() => {\n        this.setGlobalMessage(this.$translate('SAVED'), new Date().getTime());\n      }, 500);\n    });\n\n    /*\n     * Open the asset chooser to let the author insert an asset into the\n     * specified target\n     */\n    this.$scope.$on('openAssetChooser', (event, params) => {\n      // create the params for opening the asset chooser\n      const stateParams = {\n          isPopup: params.isPopup,\n          projectId: params.projectId,\n          nodeId: params.nodeId,\n          componentId: params.componentId,\n          target: params.target,\n          targetObject: params.targetObject\n      };\n\n      // open the dialog that will display the assets for the user to choose\n      this.$mdDialog.show({\n          templateUrl: 'wise5/authoringTool/asset/asset.html',\n          controller: 'ProjectAssetController',\n          controllerAs: 'projectAssetController',\n          $stateParams: stateParams,\n          clickOutsideToClose: true,\n          escapeToClose: true\n      });\n    });\n\n    /*\n     * Open the asset chooser to let the author insert an WISE Link into the\n     * specified target\n     */\n    this.$scope.$on('openWISELinkChooser', (event, params) => {\n      // create the params for opening the WISE Link authoring popup\n      const stateParams = {\n          projectId: params.projectId,\n          nodeId: params.nodeId,\n          componentId: params.componentId,\n          target: params.target\n      };\n\n      // open the WISE Link authoring popup\n      this.$mdDialog.show({\n          templateUrl: 'wise5/authoringTool/wiseLink/wiseLinkAuthoring.html',\n          controller: 'WISELinkAuthoringController',\n          controllerAs: 'wiseLinkAuthoringController',\n          $stateParams: stateParams,\n          clickOutsideToClose: true,\n          escapeToClose: true\n      });\n    });\n\n    this.$rootScope.$on('$stateChangeSuccess',\n        (event, toState, toParams, fromState, fromParams) => {\n      if (toState != null && toState.name == 'root.main') {\n        this.saveEvent('projectListViewed', 'Navigation');\n      }\n    });\n\n    if (this.$state.current.name == 'root.main') {\n      this.saveEvent('projectListViewed', 'Navigation');\n    }\n  }\n\n  /**\n   * Update UI items based on state, show or hide relevant menus and toolbars\n   * TODO: remove/rework this and put items in their own ui states?\n   */\n  processUI() {\n    // scroll to the top of the page\n    this.$anchorScroll('top');\n\n    // set current view and whether to show the toolbars and step tools\n    this.showStepTools = this.$state.$current.name === 'root.project' ||\n        this.$state.$current.name === 'root.project.node' ||\n        this.$state.$current.name === 'root.project.nodeConstraints' ||\n      this.$state.$current.name === 'root.project.nodeEditPaths';\n    const view = this.views[this.$state.$current.name];\n    if (view) {\n      this.currentViewName = view.name;\n      this.showToolbar = view.showToolbar;\n    } else {\n      this.currentViewName = '';\n      this.showToolbar = false;\n    }\n\n    this.projectId = this.ConfigService.getProjectId();\n    this.runId = this.ConfigService.getRunId();\n\n    if (this.projectId) {\n      this.projectTitle = this.ProjectService.getProjectTitle();\n    } else {\n      this.projectTitle = null;\n    }\n    this.turnOffJSONValidMessage();\n  }\n\n  turnOffJSONValidMessage() {\n    this.$rootScope.$broadcast('setIsJSONValid', { isJSONValid: null });\n  }\n\n  /**\n   * Navigate the user to the My Projects page in the Authoring Tool\n   */\n  goToMyProjects() {\n    this.$location.url('/author');\n  }\n\n  /**\n   * Toggle the authoring tool main menu\n   */\n  toggleMenu() {\n    this.isMenuOpen = !this.isMenuOpen;\n  }\n\n  /**\n   * Notify Session to renew when user moves the mouse\n   */\n  mouseMoved() {\n    this.SessionService.mouseMoved();\n  }\n\n  exit() {\n    this.ProjectService.notifyAuthorProjectEnd().then(() => {\n      let wiseBaseURL = this.ConfigService.getWISEBaseURL();\n      window.location = wiseBaseURL + '/teacher';\n    });\n  }\n\n  /**\n   * Set the global message at the top right\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setGlobalMessage(message, time) {\n    const globalMessage = {\n      text: message,\n      time: time\n    };\n    this.$rootScope.$broadcast('setGlobalMessage', { globalMessage: globalMessage });\n  };\n\n  /**\n   * Save an Authoring Tool event\n   * @param eventName the name of the event\n   * @param category the category of the event\n   * example 'Navigation' or 'Authoring'\n   */\n  saveEvent(eventName, category) {\n    let context = 'AuthoringTool';\n    let nodeId = null;\n    let componentId = null;\n    let componentType = null;\n    let data = {};\n\n    this.TeacherDataService.saveEvent(context, nodeId, componentId,\n        componentType, category, eventName, data);\n  }\n}\n\nAuthoringToolController.$inject = [\n  '$anchorScroll',\n  '$filter',\n  '$location',\n  '$mdDialog',\n  '$rootScope',\n  '$scope',\n  '$state',\n  '$timeout',\n  'ConfigService',\n  'ProjectService',\n  'SessionService',\n  'TeacherDataService',\n  'moment'\n];\n\nexport default AuthoringToolController;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.es6 b/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.es6
index 245f5b0d6c..4e0abebd32 100644
--- a/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.es6
+++ b/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.es6
@@ -11,6 +11,9 @@ class ToolbarController {
       }
       this.globalMessage = params.globalMessage;
     });
+    this.$rootScope.$on('setIsJSONValid', (event, params) => {
+      this.isJSONValid = params.isJSONValid;
+    });
   }
 
   toggleMenu() {
@@ -39,6 +42,8 @@ const Toolbar = {
         <span class="toolbar__title" ng-if="!$ctrl.showStepTools">{{ $ctrl.viewName }}</span>
         <step-tools ng-if="$ctrl.showStepTools" show-position="$ctrl.numberProject"></step-tools>
         <div flex></div>
+        <span ng-if="$ctrl.isJSONValid === true" style="color: green; font-size: 16px"><md-icon style="color:green; margin-top: -4px;">done</md-icon><span>{{ 'jsonValid' | translate }}</span></span>
+        <span ng-if="$ctrl.isJSONValid === false" style="color: red; font-size: 16px"><md-icon style="color:red; margin-top: -4px;">clear</md-icon><span>{{ 'jsonInvalid' | translate }}</span></span>
         <div style="width: 40px; height: 40px;">
           <md-progress-circular ng-if="$ctrl.isProgressIndicatorVisible"
               md-mode="indeterminate"
diff --git a/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.js b/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.js
index 5fda8d51f0..a5a2dad98d 100644
--- a/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.js
+++ b/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.js
@@ -23,6 +23,9 @@ var ToolbarController = function () {
       }
       _this.globalMessage = params.globalMessage;
     });
+    this.$rootScope.$on('setIsJSONValid', function (event, params) {
+      _this.isJSONValid = params.isJSONValid;
+    });
   }
 
   _createClass(ToolbarController, [{
@@ -45,7 +48,7 @@ var Toolbar = {
     onMenuToggle: '&'
   },
   controller: ToolbarController,
-  template: '<md-toolbar class="md-whiteframe-z1 toolbar md-toolbar--wise" md-theme="light">\n      <div class="md-toolbar-tools toolbar__tools">\n        <md-button aria-label="{{ \'authoringToolMenu\' | translate}}" class="md-icon-button" ng-click="$ctrl.toggleMenu()">\n          <md-icon> menu </md-icon>\n        </md-button>\n        <span class="toolbar__title" ng-if="!$ctrl.showStepTools">{{ $ctrl.viewName }}</span>\n        <step-tools ng-if="$ctrl.showStepTools" show-position="$ctrl.numberProject"></step-tools>\n        <div flex></div>\n        <div style="width: 40px; height: 40px;">\n          <md-progress-circular ng-if="$ctrl.isProgressIndicatorVisible"\n              md-mode="indeterminate"\n              class="md-accent"\n              style="margin: 8px;"\n              md-diameter="24px">\n          </md-progress-circular>\n        </div>\n        <span ng-if="$ctrl.globalMessage.text"\n            class="component__actions__info md-caption global-message"\n            style="margin-right: 20px;">\n            {{$ctrl.globalMessage.text}}\n            <span class="component__actions__more">\n              <md-tooltip md-direction="bottom">\n                {{ $ctrl.globalMessage.time | amDateFormat:\'ddd, MMM D YYYY, h:mm a\' }}\n              </md-tooltip>\n              <span am-time-ago="$ctrl.globalMessage.time"></span>\n            </span>\n        </span>\n      </div>\n    </md-toolbar>'
+  template: '<md-toolbar class="md-whiteframe-z1 toolbar md-toolbar--wise" md-theme="light">\n      <div class="md-toolbar-tools toolbar__tools">\n        <md-button aria-label="{{ \'authoringToolMenu\' | translate}}" class="md-icon-button" ng-click="$ctrl.toggleMenu()">\n          <md-icon> menu </md-icon>\n        </md-button>\n        <span class="toolbar__title" ng-if="!$ctrl.showStepTools">{{ $ctrl.viewName }}</span>\n        <step-tools ng-if="$ctrl.showStepTools" show-position="$ctrl.numberProject"></step-tools>\n        <div flex></div>\n        <span ng-if="$ctrl.isJSONValid === true" style="color: green; font-size: 16px"><md-icon style="color:green; margin-top: -4px;">done</md-icon><span>{{ \'jsonValid\' | translate }}</span></span>\n        <span ng-if="$ctrl.isJSONValid === false" style="color: red; font-size: 16px"><md-icon style="color:red; margin-top: -4px;">clear</md-icon><span>{{ \'jsonInvalid\' | translate }}</span></span>\n        <div style="width: 40px; height: 40px;">\n          <md-progress-circular ng-if="$ctrl.isProgressIndicatorVisible"\n              md-mode="indeterminate"\n              class="md-accent"\n              style="margin: 8px;"\n              md-diameter="24px">\n          </md-progress-circular>\n        </div>\n        <span ng-if="$ctrl.globalMessage.text"\n            class="component__actions__info md-caption global-message"\n            style="margin-right: 20px;">\n            {{$ctrl.globalMessage.text}}\n            <span class="component__actions__more">\n              <md-tooltip md-direction="bottom">\n                {{ $ctrl.globalMessage.time | amDateFormat:\'ddd, MMM D YYYY, h:mm a\' }}\n              </md-tooltip>\n              <span am-time-ago="$ctrl.globalMessage.time"></span>\n            </span>\n        </span>\n      </div>\n    </md-toolbar>'
 };
 
 exports.default = Toolbar;
diff --git a/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.js.map b/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.js.map
index 6d243a773e..918b681e00 100644
--- a/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.js.map
+++ b/src/main/webapp/wise5/authoringTool/components/shared/toolbar/toolbar.js.map
@@ -1 +1 @@
-{"version":3,"sources":["toolbar.es6"],"names":["ToolbarController","$rootScope","$on","event","params","globalMessage","time","isProgressIndicatorVisible","onMenuToggle","$inject","Toolbar","bindings","numberProject","showStepTools","viewName","controller","template"],"mappings":"AAAA;;;;;;;;;;IAEMA,iB;AACJ,6BAAYC,UAAZ,EAAwB;AAAA;;AAAA;;AACtB,SAAKA,UAAL,GAAkBA,UAAlB;AACA,SAAKA,UAAL,CAAgBC,GAAhB,CAAoB,kBAApB,EAAwC,UAACC,KAAD,EAAQC,MAAR,EAAmB;AACzD,UAAIA,OAAOC,aAAP,CAAqBC,IAArB,KAA8B,IAAlC,EAAwC;AACtC,cAAKC,0BAAL,GAAkC,IAAlC;AACD,OAFD,MAEO;AACL,cAAKA,0BAAL,GAAkC,KAAlC;AACD;AACD,YAAKF,aAAL,GAAqBD,OAAOC,aAA5B;AACD,KAPD;AAQD;;;;iCAEY;AACX,WAAKG,YAAL;AACD;;;;;;AAGHR,kBAAkBS,OAAlB,GAA4B,CAC1B,YAD0B,CAA5B;;AAIA,IAAMC,UAAU;AACdC,YAAU;AACRC,mBAAe,GADP;AAERC,mBAAe,GAFP;AAGRC,cAAU,GAHF;AAIRN,kBAAc;AAJN,GADI;AAOdO,cAAYf,iBAPE;AAQdgB;AARc,CAAhB;;kBAwCeN,O","file":"toolbar.js","sourcesContent":["\"use strict\";\n\nclass ToolbarController {\n  constructor($rootScope) {\n    this.$rootScope = $rootScope;\n    this.$rootScope.$on('setGlobalMessage', (event, params) => {\n      if (params.globalMessage.time === null) {\n        this.isProgressIndicatorVisible = true;\n      } else {\n        this.isProgressIndicatorVisible = false;\n      }\n      this.globalMessage = params.globalMessage;\n    });\n  }\n\n  toggleMenu() {\n    this.onMenuToggle();\n  }\n}\n\nToolbarController.$inject = [\n  '$rootScope'\n];\n\nconst Toolbar = {\n  bindings: {\n    numberProject: '<',\n    showStepTools: '<',\n    viewName: '<',\n    onMenuToggle: '&'\n  },\n  controller: ToolbarController,\n  template:\n    `<md-toolbar class=\"md-whiteframe-z1 toolbar md-toolbar--wise\" md-theme=\"light\">\n      <div class=\"md-toolbar-tools toolbar__tools\">\n        <md-button aria-label=\"{{ 'authoringToolMenu' | translate}}\" class=\"md-icon-button\" ng-click=\"$ctrl.toggleMenu()\">\n          <md-icon> menu </md-icon>\n        </md-button>\n        <span class=\"toolbar__title\" ng-if=\"!$ctrl.showStepTools\">{{ $ctrl.viewName }}</span>\n        <step-tools ng-if=\"$ctrl.showStepTools\" show-position=\"$ctrl.numberProject\"></step-tools>\n        <div flex></div>\n        <div style=\"width: 40px; height: 40px;\">\n          <md-progress-circular ng-if=\"$ctrl.isProgressIndicatorVisible\"\n              md-mode=\"indeterminate\"\n              class=\"md-accent\"\n              style=\"margin: 8px;\"\n              md-diameter=\"24px\">\n          </md-progress-circular>\n        </div>\n        <span ng-if=\"$ctrl.globalMessage.text\"\n            class=\"component__actions__info md-caption global-message\"\n            style=\"margin-right: 20px;\">\n            {{$ctrl.globalMessage.text}}\n            <span class=\"component__actions__more\">\n              <md-tooltip md-direction=\"bottom\">\n                {{ $ctrl.globalMessage.time | amDateFormat:'ddd, MMM D YYYY, h:mm a' }}\n              </md-tooltip>\n              <span am-time-ago=\"$ctrl.globalMessage.time\"></span>\n            </span>\n        </span>\n      </div>\n    </md-toolbar>`\n};\n\nexport default Toolbar;\n"]}
\ No newline at end of file
+{"version":3,"sources":["toolbar.es6"],"names":["ToolbarController","$rootScope","$on","event","params","globalMessage","time","isProgressIndicatorVisible","isJSONValid","onMenuToggle","$inject","Toolbar","bindings","numberProject","showStepTools","viewName","controller","template"],"mappings":"AAAA;;;;;;;;;;IAEMA,iB;AACJ,6BAAYC,UAAZ,EAAwB;AAAA;;AAAA;;AACtB,SAAKA,UAAL,GAAkBA,UAAlB;AACA,SAAKA,UAAL,CAAgBC,GAAhB,CAAoB,kBAApB,EAAwC,UAACC,KAAD,EAAQC,MAAR,EAAmB;AACzD,UAAIA,OAAOC,aAAP,CAAqBC,IAArB,KAA8B,IAAlC,EAAwC;AACtC,cAAKC,0BAAL,GAAkC,IAAlC;AACD,OAFD,MAEO;AACL,cAAKA,0BAAL,GAAkC,KAAlC;AACD;AACD,YAAKF,aAAL,GAAqBD,OAAOC,aAA5B;AACD,KAPD;AAQA,SAAKJ,UAAL,CAAgBC,GAAhB,CAAoB,gBAApB,EAAsC,UAACC,KAAD,EAAQC,MAAR,EAAmB;AACvD,YAAKI,WAAL,GAAmBJ,OAAOI,WAA1B;AACD,KAFD;AAGD;;;;iCAEY;AACX,WAAKC,YAAL;AACD;;;;;;AAGHT,kBAAkBU,OAAlB,GAA4B,CAC1B,YAD0B,CAA5B;;AAIA,IAAMC,UAAU;AACdC,YAAU;AACRC,mBAAe,GADP;AAERC,mBAAe,GAFP;AAGRC,cAAU,GAHF;AAIRN,kBAAc;AAJN,GADI;AAOdO,cAAYhB,iBAPE;AAQdiB;AARc,CAAhB;;kBA0CeN,O","file":"toolbar.js","sourcesContent":["\"use strict\";\n\nclass ToolbarController {\n  constructor($rootScope) {\n    this.$rootScope = $rootScope;\n    this.$rootScope.$on('setGlobalMessage', (event, params) => {\n      if (params.globalMessage.time === null) {\n        this.isProgressIndicatorVisible = true;\n      } else {\n        this.isProgressIndicatorVisible = false;\n      }\n      this.globalMessage = params.globalMessage;\n    });\n    this.$rootScope.$on('setIsJSONValid', (event, params) => {\n      this.isJSONValid = params.isJSONValid;\n    });\n  }\n\n  toggleMenu() {\n    this.onMenuToggle();\n  }\n}\n\nToolbarController.$inject = [\n  '$rootScope'\n];\n\nconst Toolbar = {\n  bindings: {\n    numberProject: '<',\n    showStepTools: '<',\n    viewName: '<',\n    onMenuToggle: '&'\n  },\n  controller: ToolbarController,\n  template:\n    `<md-toolbar class=\"md-whiteframe-z1 toolbar md-toolbar--wise\" md-theme=\"light\">\n      <div class=\"md-toolbar-tools toolbar__tools\">\n        <md-button aria-label=\"{{ 'authoringToolMenu' | translate}}\" class=\"md-icon-button\" ng-click=\"$ctrl.toggleMenu()\">\n          <md-icon> menu </md-icon>\n        </md-button>\n        <span class=\"toolbar__title\" ng-if=\"!$ctrl.showStepTools\">{{ $ctrl.viewName }}</span>\n        <step-tools ng-if=\"$ctrl.showStepTools\" show-position=\"$ctrl.numberProject\"></step-tools>\n        <div flex></div>\n        <span ng-if=\"$ctrl.isJSONValid === true\" style=\"color: green; font-size: 16px\"><md-icon style=\"color:green; margin-top: -4px;\">done</md-icon><span>{{ 'jsonValid' | translate }}</span></span>\n        <span ng-if=\"$ctrl.isJSONValid === false\" style=\"color: red; font-size: 16px\"><md-icon style=\"color:red; margin-top: -4px;\">clear</md-icon><span>{{ 'jsonInvalid' | translate }}</span></span>\n        <div style=\"width: 40px; height: 40px;\">\n          <md-progress-circular ng-if=\"$ctrl.isProgressIndicatorVisible\"\n              md-mode=\"indeterminate\"\n              class=\"md-accent\"\n              style=\"margin: 8px;\"\n              md-diameter=\"24px\">\n          </md-progress-circular>\n        </div>\n        <span ng-if=\"$ctrl.globalMessage.text\"\n            class=\"component__actions__info md-caption global-message\"\n            style=\"margin-right: 20px;\">\n            {{$ctrl.globalMessage.text}}\n            <span class=\"component__actions__more\">\n              <md-tooltip md-direction=\"bottom\">\n                {{ $ctrl.globalMessage.time | amDateFormat:'ddd, MMM D YYYY, h:mm a' }}\n              </md-tooltip>\n              <span am-time-ago=\"$ctrl.globalMessage.time\"></span>\n            </span>\n        </span>\n      </div>\n    </md-toolbar>`\n};\n\nexport default Toolbar;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/authoringTool/i18n/i18n_en.json b/src/main/webapp/wise5/authoringTool/i18n/i18n_en.json
index fe01fd4094..138ec98e16 100644
--- a/src/main/webapp/wise5/authoringTool/i18n/i18n_en.json
+++ b/src/main/webapp/wise5/authoringTool/i18n/i18n_en.json
@@ -161,6 +161,8 @@
     "isVisitable": "Is Visitable",
     "isVisited": "Is Visited",
     "json": "JSON",
+    "jsonInvalid": "JSON Invalid",
+    "jsonValid": "JSON Valid",
     "labelLink": "Label (Link)",
     "labelPlural": "Label (Plural)",
     "labelSingular": "Label (Singular)",
@@ -225,6 +227,7 @@
     "projectCreatedOn": "Project created on ",
     "projectHome": "Project Home",
     "projectJSON": "Project JSON",
+    "jsonInvalidErrorMessage": "The JSON is invalid. Invalid JSON will not be saved.\nClick \"OK\" to revert back to the last valid JSON.\nClick \"Cancel\" to keep the invalid JSON open so you can fix it.",
     "projectsList": "Projects List",
     "projectStyles": "Project Styles",
     "projectStructure": "Project Structure",
diff --git a/src/main/webapp/wise5/authoringTool/main.es6 b/src/main/webapp/wise5/authoringTool/main.es6
index ab6bdef9e6..2cb103bbf1 100644
--- a/src/main/webapp/wise5/authoringTool/main.es6
+++ b/src/main/webapp/wise5/authoringTool/main.es6
@@ -28,6 +28,7 @@ import '../components/conceptMap/conceptMapComponentModule';
 import ConfigService from '../services/configService';
 import CRaterService from '../services/cRaterService';
 import '../directives/components';
+import ComponentService from '../components/componentService';
 import '../components/discussion/discussionComponentModule';
 import '../components/draw/drawComponentModule';
 import '../components/embedded/embeddedComponentModule';
@@ -50,6 +51,7 @@ import ProjectAssetService from '../services/projectAssetService';
 import ProjectController from './project/projectController';
 import ProjectHistoryController from './history/projectHistoryController';
 import ProjectInfoController from './info/projectInfoController';
+import PlanningService from '../services/planningService';
 import ProjectService from '../services/projectService';
 import SessionService from '../services/sessionService';
 import SpaceService from '../services/spaceService';
@@ -101,11 +103,13 @@ let authoringModule = angular.module('authoring', [
     ])
     .service(AnnotationService.name, AnnotationService)
     .service(AuthorWebSocketService.name, AuthorWebSocketService)
+    .service(ComponentService.name, ComponentService)
     .service(ConfigService.name, ConfigService)
     .service(CRaterService.name, CRaterService)
     .service(NodeService.name, NodeService)
     .service(NotebookService.name, NotebookService)
     .service(NotificationService.name, NotificationService)
+    .service(PlanningService.name, PlanningService)
     .service(ProjectService.name, AuthoringToolProjectService)
     .service(ProjectAssetService.name, ProjectAssetService)
     .service(SessionService.name, SessionService)
diff --git a/src/main/webapp/wise5/authoringTool/main.js b/src/main/webapp/wise5/authoringTool/main.js
index af5a3a87f5..4dda2e36df 100644
--- a/src/main/webapp/wise5/authoringTool/main.js
+++ b/src/main/webapp/wise5/authoringTool/main.js
@@ -82,6 +82,10 @@ var _cRaterService2 = _interopRequireDefault(_cRaterService);
 
 require('../directives/components');
 
+var _componentService = require('../components/componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
+
 require('../components/discussion/discussionComponentModule');
 
 require('../components/draw/drawComponentModule');
@@ -144,6 +148,10 @@ var _projectInfoController = require('./info/projectInfoController');
 
 var _projectInfoController2 = _interopRequireDefault(_projectInfoController);
 
+var _planningService = require('../services/planningService');
+
+var _planningService2 = _interopRequireDefault(_planningService);
+
 var _projectService = require('../services/projectService');
 
 var _projectService2 = _interopRequireDefault(_projectService);
@@ -198,7 +206,7 @@ var _moment2 = _interopRequireDefault(_moment);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-var authoringModule = _angular2.default.module('authoring', [(0, _angularDragula2.default)(_angular2.default), 'angularMoment', 'angular-toArrayFilter', 'animationComponentModule', 'audioOscillatorComponentModule', 'authoringTool.components', 'components', 'conceptMapComponentModule', 'discussionComponentModule', 'drawComponentModule', 'embeddedComponentModule', 'filters', 'graphComponentModule', 'highcharts-ng', 'htmlComponentModule', 'labelComponentModule', 'matchComponentModule', 'multipleChoiceComponentModule', 'ngAnimate', 'ngAria', 'ngFileUpload', 'ngMaterial', 'ngSanitize', 'ngWebSocket', 'notebook', 'openResponseComponentModule', 'outsideURLComponentModule', 'pascalprecht.translate', 'summernote', 'tableComponentModule', 'ui.router']).service(_annotationService2.default.name, _annotationService2.default).service(_authorWebSocketService2.default.name, _authorWebSocketService2.default).service(_configService2.default.name, _configService2.default).service(_cRaterService2.default.name, _cRaterService2.default).service(_nodeService2.default.name, _nodeService2.default).service(_notebookService2.default.name, _notebookService2.default).service(_notificationService2.default.name, _notificationService2.default).service(_projectService2.default.name, _authoringToolProjectService2.default).service(_projectAssetService2.default.name, _projectAssetService2.default).service(_sessionService2.default.name, _sessionService2.default).service(_spaceService2.default.name, _spaceService2.default).service(_studentAssetService2.default.name, _studentAssetService2.default).service(_studentDataService2.default.name, _studentDataService2.default).service(_studentStatusService2.default.name, _studentStatusService2.default).service(_studentWebSocketService2.default.name, _studentWebSocketService2.default).service(_teacherDataService2.default.name, _teacherDataService2.default).service(_teacherWebSocketService2.default.name, _teacherWebSocketService2.default).service(_utilService2.default.name, _utilService2.default).controller(_authoringToolController2.default.name, _authoringToolController2.default).controller(_authoringToolMainController2.default.name, _authoringToolMainController2.default).controller(_authoringToolNewProjectController2.default.name, _authoringToolNewProjectController2.default).controller(_authorNotebookController2.default.name, _authorNotebookController2.default).controller(_nodeAuthoringController2.default.name, _nodeAuthoringController2.default).controller(_projectAssetController2.default.name, _projectAssetController2.default).controller(_projectController2.default.name, _projectController2.default).controller(_projectHistoryController2.default.name, _projectHistoryController2.default).controller(_projectInfoController2.default.name, _projectInfoController2.default).controller(_wiseLinkAuthoringController2.default.name, _wiseLinkAuthoringController2.default).config(['$urlRouterProvider', '$stateProvider', '$translateProvider', '$translatePartialLoaderProvider', '$controllerProvider', '$mdThemingProvider', function ($urlRouterProvider, $stateProvider, $translateProvider, $translatePartialLoaderProvider, $controllerProvider, $mdThemingProvider) {
+var authoringModule = _angular2.default.module('authoring', [(0, _angularDragula2.default)(_angular2.default), 'angularMoment', 'angular-toArrayFilter', 'animationComponentModule', 'audioOscillatorComponentModule', 'authoringTool.components', 'components', 'conceptMapComponentModule', 'discussionComponentModule', 'drawComponentModule', 'embeddedComponentModule', 'filters', 'graphComponentModule', 'highcharts-ng', 'htmlComponentModule', 'labelComponentModule', 'matchComponentModule', 'multipleChoiceComponentModule', 'ngAnimate', 'ngAria', 'ngFileUpload', 'ngMaterial', 'ngSanitize', 'ngWebSocket', 'notebook', 'openResponseComponentModule', 'outsideURLComponentModule', 'pascalprecht.translate', 'summernote', 'tableComponentModule', 'ui.router']).service(_annotationService2.default.name, _annotationService2.default).service(_authorWebSocketService2.default.name, _authorWebSocketService2.default).service(_componentService2.default.name, _componentService2.default).service(_configService2.default.name, _configService2.default).service(_cRaterService2.default.name, _cRaterService2.default).service(_nodeService2.default.name, _nodeService2.default).service(_notebookService2.default.name, _notebookService2.default).service(_notificationService2.default.name, _notificationService2.default).service(_planningService2.default.name, _planningService2.default).service(_projectService2.default.name, _authoringToolProjectService2.default).service(_projectAssetService2.default.name, _projectAssetService2.default).service(_sessionService2.default.name, _sessionService2.default).service(_spaceService2.default.name, _spaceService2.default).service(_studentAssetService2.default.name, _studentAssetService2.default).service(_studentDataService2.default.name, _studentDataService2.default).service(_studentStatusService2.default.name, _studentStatusService2.default).service(_studentWebSocketService2.default.name, _studentWebSocketService2.default).service(_teacherDataService2.default.name, _teacherDataService2.default).service(_teacherWebSocketService2.default.name, _teacherWebSocketService2.default).service(_utilService2.default.name, _utilService2.default).controller(_authoringToolController2.default.name, _authoringToolController2.default).controller(_authoringToolMainController2.default.name, _authoringToolMainController2.default).controller(_authoringToolNewProjectController2.default.name, _authoringToolNewProjectController2.default).controller(_authorNotebookController2.default.name, _authorNotebookController2.default).controller(_nodeAuthoringController2.default.name, _nodeAuthoringController2.default).controller(_projectAssetController2.default.name, _projectAssetController2.default).controller(_projectController2.default.name, _projectController2.default).controller(_projectHistoryController2.default.name, _projectHistoryController2.default).controller(_projectInfoController2.default.name, _projectInfoController2.default).controller(_wiseLinkAuthoringController2.default.name, _wiseLinkAuthoringController2.default).config(['$urlRouterProvider', '$stateProvider', '$translateProvider', '$translatePartialLoaderProvider', '$controllerProvider', '$mdThemingProvider', function ($urlRouterProvider, $stateProvider, $translateProvider, $translatePartialLoaderProvider, $controllerProvider, $mdThemingProvider) {
 
   $urlRouterProvider.otherwise('/');
 
diff --git a/src/main/webapp/wise5/authoringTool/main.js.map b/src/main/webapp/wise5/authoringTool/main.js.map
index 7da41e75bd..1be1d23e9b 100644
--- a/src/main/webapp/wise5/authoringTool/main.js.map
+++ b/src/main/webapp/wise5/authoringTool/main.js.map
@@ -1 +1 @@
-{"version":3,"sources":["main.es6"],"names":["authoringModule","module","service","name","controller","config","$urlRouterProvider","$stateProvider","$translateProvider","$translatePartialLoaderProvider","$controllerProvider","$mdThemingProvider","otherwise","state","url","abstract","templateUrl","controllerAs","resolve","ConfigService","retrieveConfig","window","configURL","language","$translate","use","getLocale","sessionTimers","SessionService","initializeSession","projectConfig","$stateParams","projectId","project","ProjectService","retrieveProject","projectAssets","ProjectAssetService","retrieveProjectAssets","webSocket","AuthorWebSocketService","initialize","addPart","useLoader","urlTemplate","registerAvailableLanguageKeys","determinePreferredLanguage","fallbackLanguage","useSanitizeValueStrategy","definePalette","undefined","theme","primaryPalette","accentPalette","warnPalette","lightMap","extendPalette","setDefaultTheme","enableBrowserColor","updateLocale","calendar","lastDay","sameDay","nextDay","lastWeek","nextWeek","sameElse"],"mappings":"AAAA;;;;;;AAEA;;AACA;;AACA;;;;AACA;;;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;;;AACA;;AACA;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;AACA;;;;AACA;;;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;AACA;;;;AACA;;;;AACA;;AACA;;;;AACA;;;;AACA;;AACA;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AACA;;AACA;;;;AACA;;;;AACA;;;;AACA;;;;AAEA;;AACA;;;;;;AAEA,IAAIA,kBAAkB,kBAAQC,MAAR,CAAe,WAAf,EAA4B,CAC9C,gDAD8C,EAE9C,eAF8C,EAG9C,uBAH8C,EAI9C,0BAJ8C,EAK9C,gCAL8C,EAM9C,0BAN8C,EAO9C,YAP8C,EAQ9C,2BAR8C,EAS9C,2BAT8C,EAU9C,qBAV8C,EAW9C,yBAX8C,EAY9C,SAZ8C,EAa9C,sBAb8C,EAc9C,eAd8C,EAe9C,qBAf8C,EAgB9C,sBAhB8C,EAiB9C,sBAjB8C,EAkB9C,+BAlB8C,EAmB9C,WAnB8C,EAoB9C,QApB8C,EAqB9C,cArB8C,EAsB9C,YAtB8C,EAuB9C,YAvB8C,EAwB9C,aAxB8C,EAyB9C,UAzB8C,EA0B9C,6BA1B8C,EA2B9C,2BA3B8C,EA4B9C,wBA5B8C,EA6B9C,YA7B8C,EA8B9C,sBA9B8C,EA+B9C,WA/B8C,CAA5B,EAiCjBC,OAjCiB,CAiCT,4BAAkBC,IAjCT,+BAkCjBD,OAlCiB,CAkCT,iCAAuBC,IAlCd,oCAmCjBD,OAnCiB,CAmCT,wBAAcC,IAnCL,2BAoCjBD,OApCiB,CAoCT,wBAAcC,IApCL,2BAqCjBD,OArCiB,CAqCT,sBAAYC,IArCH,yBAsCjBD,OAtCiB,CAsCT,0BAAgBC,IAtCP,6BAuCjBD,OAvCiB,CAuCT,8BAAoBC,IAvCX,iCAwCjBD,OAxCiB,CAwCT,yBAAeC,IAxCN,yCAyCjBD,OAzCiB,CAyCT,8BAAoBC,IAzCX,iCA0CjBD,OA1CiB,CA0CT,yBAAeC,IA1CN,4BA2CjBD,OA3CiB,CA2CT,uBAAaC,IA3CJ,0BA4CjBD,OA5CiB,CA4CT,8BAAoBC,IA5CX,iCA6CjBD,OA7CiB,CA6CT,6BAAmBC,IA7CV,gCA8CjBD,OA9CiB,CA8CT,+BAAqBC,IA9CZ,kCA+CjBD,OA/CiB,CA+CT,kCAAwBC,IA/Cf,qCAgDjBD,OAhDiB,CAgDT,6BAAmBC,IAhDV,gCAiDjBD,OAjDiB,CAiDT,kCAAwBC,IAjDf,qCAkDjBD,OAlDiB,CAkDT,sBAAYC,IAlDH,yBAmDjBC,UAnDiB,CAmDN,kCAAwBD,IAnDlB,qCAoDjBC,UApDiB,CAoDN,sCAA4BD,IApDtB,yCAqDjBC,UArDiB,CAqDN,4CAAkCD,IArD5B,+CAsDjBC,UAtDiB,CAsDN,mCAAyBD,IAtDnB,sCAuDjBC,UAvDiB,CAuDN,kCAAwBD,IAvDlB,qCAwDjBC,UAxDiB,CAwDN,iCAAuBD,IAxDjB,oCAyDjBC,UAzDiB,CAyDN,4BAAkBD,IAzDZ,+BA0DjBC,UA1DiB,CA0DN,mCAAyBD,IA1DnB,sCA2DjBC,UA3DiB,CA2DN,gCAAsBD,IA3DhB,mCA4DjBC,UA5DiB,CA4DN,sCAA4BD,IA5DtB,yCA6DjBE,MA7DiB,CA6DV,CACR,oBADQ,EAER,gBAFQ,EAGR,oBAHQ,EAIR,iCAJQ,EAKR,qBALQ,EAMR,oBANQ,EAOR,UAACC,kBAAD,EACCC,cADD,EAECC,kBAFD,EAGCC,+BAHD,EAICC,mBAJD,EAKCC,kBALD,EAKwB;;AAEtBL,qBAAmBM,SAAnB,CAA6B,GAA7B;;AAEAL,iBACKM,KADL,CACW,MADX,EACmB;AACbC,SAAK,EADQ;AAEbC,cAAU,IAFG;AAGbC,iBAAa,wCAHA;AAIbZ,gBAAY,yBAJC;AAKba,kBAAc,yBALD;AAMbC,aAAS;AANI,GADnB,EASKL,KATL,CASW,WATX,EASwB;AAClBC,SAAK,GADa;AAElBE,iBAAa,oCAFK;AAGlBZ,gBAAY,6BAHM;AAIlBa,kBAAc,6BAJI;AAKlBC,aAAS;AACPb,cAAQ,gBAACc,aAAD,EAAmB;AACzB,eAAOA,cAAcC,cAAd,CAA6BC,OAAOC,SAApC,CAAP;AACD,OAHM;AAIPC,gBAAU,kBAACC,UAAD,EAAaL,aAAb,EAA4Bd,MAA5B,EAAuC;AAC/CmB,mBAAWC,GAAX,CAAeN,cAAcO,SAAd,EAAf;AACD,OANM;AAOPC,qBAAe,uBAACC,cAAD,EAAiBvB,MAAjB,EAA4B;AACzC,eAAOuB,eAAeC,iBAAf,EAAP;AACD;AATM;AALS,GATxB,EA0BKhB,KA1BL,CA0BW,UA1BX,EA0BuB;AACjBC,SAAK,MADY;AAEjBE,iBAAa,mCAFI;AAGjBZ,gBAAY,mCAHK;AAIjBa,kBAAc,mCAJG;AAKjBC,aAAS;AACPb,cAAQ,gBAACc,aAAD,EAAmB;AACzB,eAAOA,cAAcC,cAAd,CAA6BC,OAAOC,SAApC,CAAP;AACD,OAHM;AAIPC,gBAAU,kBAACC,UAAD,EAAaL,aAAb,EAA4Bd,MAA5B,EAAuC;AAC/CmB,mBAAWC,GAAX,CAAeN,cAAcO,SAAd,EAAf;AACD,OANM;AAOPC,qBAAe,uBAACC,cAAD,EAAiBvB,MAAjB,EAA4B;AACzC,eAAOuB,eAAeC,iBAAf,EAAP;AACD;AATM;AALQ,GA1BvB,EA2CKhB,KA3CL,CA2CW,cA3CX,EA2C2B;AACrBC,SAAK,qBADgB;AAErBE,iBAAa,0CAFQ;AAGrBZ,gBAAY,mBAHS;AAIrBa,kBAAc,mBAJO;AAKrBC,aAAS;AACPY,qBAAe,uBAACX,aAAD,EAAgBY,YAAhB,EAAiC;AAC9C,YAAMT,YAAYD,OAAOC,SAAP,GAAmB,GAAnB,GAAyBS,aAAaC,SAAxD;AACA,eAAOb,cAAcC,cAAd,CAA6BE,SAA7B,CAAP;AACD,OAJM;AAKPW,eAAS,iBAACC,cAAD,EAAiBJ,aAAjB,EAAmC;AAC1C,eAAOI,eAAeC,eAAf,EAAP;AACD,OAPM;AAQPC,qBAAe,uBAACC,mBAAD,EAAsBP,aAAtB,EAAqCG,OAArC,EAAiD;AAC9D,eAAOI,oBAAoBC,qBAApB,EAAP;AACD,OAVM;AAWPf,gBAAU,kBAACC,UAAD,EAAaL,aAAb,EAA4BW,aAA5B,EAA8C;AACtDN,mBAAWC,GAAX,CAAeN,cAAcO,SAAd,EAAf;AACD,OAbM;AAcPC,qBAAe,uBAACC,cAAD,EAAiBE,aAAjB,EAAmC;AAChD,eAAOF,eAAeC,iBAAf,EAAP;AACD,OAhBM;AAiBPU,iBAAW,mBAACC,sBAAD,EAAyBV,aAAzB,EAA2C;AACpD,eAAOU,uBAAuBC,UAAvB,EAAP;AACD;AAnBM;AALY,GA3C3B,EAsEK5B,KAtEL,CAsEW,mBAtEX,EAsEgC;AAC1BC,SAAK,eADqB;AAE1BE,iBAAa,oCAFa;AAG1BZ,gBAAY,yBAHc;AAI1Ba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strict';\n\nimport '../themes/default/js/webfonts';\nimport 'jquery';\nimport angular from 'angular';\nimport angularDragula from 'angular-dragula';\nimport 'ng-file-upload';\nimport 'highcharts-ng';\nimport 'angular-ui-router';\nimport 'angular-material';\nimport 'angular-moment';\nimport 'angular-sanitize';\nimport 'lib/angular-toArrayFilter/toArrayFilter';\nimport 'angular-translate';\nimport 'angular-translate-loader-partial';\nimport 'angular-websocket';\nimport '../components/animation/animationComponentModule';\nimport AnnotationService from '../services/annotationService';\nimport '../components/audioOscillator/audioOscillatorComponentModule';\nimport './components/authoringToolComponents';\nimport AuthoringToolController from './authoringToolController';\nimport AuthoringToolMainController from './main/authoringToolMainController';\nimport AuthoringToolNewProjectController from './main/authoringToolNewProjectController';\nimport AuthoringToolProjectService from './authoringToolProjectService';\nimport AuthorNotebookController from './notebook/authorNotebookController';\nimport AuthorWebSocketService from '../services/authorWebSocketService';\nimport '../components/conceptMap/conceptMapComponentModule';\nimport ConfigService from '../services/configService';\nimport CRaterService from '../services/cRaterService';\nimport '../directives/components';\nimport '../components/discussion/discussionComponentModule';\nimport '../components/draw/drawComponentModule';\nimport '../components/embedded/embeddedComponentModule';\nimport '../filters/filters';\nimport '../lib/highcharts@4.2.1';\nimport '../components/graph/graphComponentModule';\nimport '../components/html/htmlComponentModule';\nimport '../components/label/labelComponentModule';\nimport '../components/match/matchComponentModule';\nimport '../components/multipleChoice/multipleChoiceComponentModule';\nimport NodeAuthoringController from './node/nodeAuthoringController';\nimport NodeService from '../services/nodeService';\nimport '../directives/notebook/notebook';\nimport NotebookService from '../services/notebookService';\nimport NotificationService from '../services/notificationService';\nimport '../components/openResponse/openResponseComponentModule';\nimport '../components/outsideURL/outsideURLComponentModule';\nimport ProjectAssetController from './asset/projectAssetController';\nimport ProjectAssetService from '../services/projectAssetService';\nimport ProjectController from './project/projectController';\nimport ProjectHistoryController from './history/projectHistoryController';\nimport ProjectInfoController from './info/projectInfoController';\nimport ProjectService from '../services/projectService';\nimport SessionService from '../services/sessionService';\nimport SpaceService from '../services/spaceService';\nimport StudentAssetService from '../services/studentAssetService';\nimport StudentDataService from '../services/studentDataService';\nimport StudentStatusService from '../services/studentStatusService';\nimport StudentWebSocketService from '../services/studentWebSocketService';\nimport '../components/table/tableComponentModule';\nimport TeacherDataService from '../services/teacherDataService';\nimport TeacherWebSocketService from '../services/teacherWebSocketService';\nimport UtilService from '../services/utilService';\nimport WISELinkAuthoringController from './wiseLink/wiseLinkAuthoringController';\n\nimport 'lib/angular-summernote/dist/angular-summernote.min';\nimport moment from 'moment';\n\nlet authoringModule = angular.module('authoring', [\n    angularDragula(angular),\n    'angularMoment',\n    'angular-toArrayFilter',\n    'animationComponentModule',\n    'audioOscillatorComponentModule',\n    'authoringTool.components',\n    'components',\n    'conceptMapComponentModule',\n    'discussionComponentModule',\n    'drawComponentModule',\n    'embeddedComponentModule',\n    'filters',\n    'graphComponentModule',\n    'highcharts-ng',\n    'htmlComponentModule',\n    'labelComponentModule',\n    'matchComponentModule',\n    'multipleChoiceComponentModule',\n    'ngAnimate',\n    'ngAria',\n    'ngFileUpload',\n    'ngMaterial',\n    'ngSanitize',\n    'ngWebSocket',\n    'notebook',\n    'openResponseComponentModule',\n    'outsideURLComponentModule',\n    'pascalprecht.translate',\n    'summernote',\n    'tableComponentModule',\n    'ui.router'\n    ])\n    .service(AnnotationService.name, AnnotationService)\n    .service(AuthorWebSocketService.name, AuthorWebSocketService)\n    .service(ConfigService.name, ConfigService)\n    .service(CRaterService.name, CRaterService)\n    .service(NodeService.name, NodeService)\n    .service(NotebookService.name, NotebookService)\n    .service(NotificationService.name, NotificationService)\n    .service(ProjectService.name, AuthoringToolProjectService)\n    .service(ProjectAssetService.name, ProjectAssetService)\n    .service(SessionService.name, SessionService)\n    .service(SpaceService.name, SpaceService)\n    .service(StudentAssetService.name, StudentAssetService)\n    .service(StudentDataService.name, StudentDataService)\n    .service(StudentStatusService.name, StudentStatusService)\n    .service(StudentWebSocketService.name, StudentWebSocketService)\n    .service(TeacherDataService.name, TeacherDataService)\n    .service(TeacherWebSocketService.name, TeacherWebSocketService)\n    .service(UtilService.name, UtilService)\n    .controller(AuthoringToolController.name, AuthoringToolController)\n    .controller(AuthoringToolMainController.name, AuthoringToolMainController)\n    .controller(AuthoringToolNewProjectController.name, AuthoringToolNewProjectController)\n    .controller(AuthorNotebookController.name, AuthorNotebookController)\n    .controller(NodeAuthoringController.name, NodeAuthoringController)\n    .controller(ProjectAssetController.name, ProjectAssetController)\n    .controller(ProjectController.name, ProjectController)\n    .controller(ProjectHistoryController.name, ProjectHistoryController)\n    .controller(ProjectInfoController.name, ProjectInfoController)\n    .controller(WISELinkAuthoringController.name, WISELinkAuthoringController)\n    .config([\n    '$urlRouterProvider',\n    '$stateProvider',\n    '$translateProvider',\n    '$translatePartialLoaderProvider',\n    '$controllerProvider',\n    '$mdThemingProvider',\n    ($urlRouterProvider,\n     $stateProvider,\n     $translateProvider,\n     $translatePartialLoaderProvider,\n     $controllerProvider,\n     $mdThemingProvider) => {\n\n      $urlRouterProvider.otherwise('/');\n\n      $stateProvider\n          .state('root', {\n            url: '',\n            abstract: true,\n            templateUrl: 'wise5/authoringTool/authoringTool.html',\n            controller: 'AuthoringToolController',\n            controllerAs: 'authoringToolController',\n            resolve: {}\n          })\n          .state('root.main', {\n            url: '/',\n            templateUrl: 'wise5/authoringTool/main/main.html',\n            controller: 'AuthoringToolMainController',\n            controllerAs: 'authoringToolMainController',\n            resolve: {\n              config: (ConfigService) => {\n                return ConfigService.retrieveConfig(window.configURL);\n              },\n              language: ($translate, ConfigService, config) => {\n                $translate.use(ConfigService.getLocale());\n              },\n              sessionTimers: (SessionService, config) => {\n                return SessionService.initializeSession();\n              }\n            }\n          })\n          .state('root.new', {\n            url: '/new',\n            templateUrl: 'wise5/authoringTool/main/new.html',\n            controller: 'AuthoringToolNewProjectController',\n            controllerAs: 'authoringToolNewProjectController',\n            resolve: {\n              config: (ConfigService) => {\n                return ConfigService.retrieveConfig(window.configURL);\n              },\n              language: ($translate, ConfigService, config) => {\n                $translate.use(ConfigService.getLocale());\n              },\n              sessionTimers: (SessionService, config) => {\n                return SessionService.initializeSession();\n              }\n            }\n          })\n          .state('root.project', {\n            url: '/project/:projectId',\n            templateUrl: 'wise5/authoringTool/project/project.html',\n            controller: 'ProjectController',\n            controllerAs: 'projectController',\n            resolve: {\n              projectConfig: (ConfigService, $stateParams) => {\n                const configURL = window.configURL + '/' + $stateParams.projectId;\n                return ConfigService.retrieveConfig(configURL);\n              },\n              project: (ProjectService, projectConfig) => {\n                return ProjectService.retrieveProject();\n              },\n              projectAssets: (ProjectAssetService, projectConfig, project) => {\n                return ProjectAssetService.retrieveProjectAssets();\n              },\n              language: ($translate, ConfigService, projectConfig) => {\n                $translate.use(ConfigService.getLocale());\n              },\n              sessionTimers: (SessionService, projectConfig) => {\n                return SessionService.initializeSession();\n              },\n              webSocket: (AuthorWebSocketService, projectConfig) => {\n                return AuthorWebSocketService.initialize();\n              }\n            }\n          })\n          .state('root.project.node', {\n            url: '/node/:nodeId',\n            templateUrl: 'wise5/authoringTool/node/node.html',\n            controller: 'NodeAuthoringController',\n            controllerAs: 'nodeAuthoringController',\n            resolve: {}\n          })\n          .state('root.project.nodeConstraints', {\n            url: '/node/constraints/:nodeId',\n            templateUrl: 'wise5/authoringTool/node/node.html',\n            controller: 'NodeAuthoringController',\n            controllerAs: 'nodeAuthoringController',\n            resolve: {}\n          })\n          .state('root.project.nodeEditPaths', {\n            url: '/node/editpaths/:nodeId',\n            templateUrl: 'wise5/authoringTool/node/node.html',\n            controller: 'NodeAuthoringController',\n            controllerAs: 'nodeAuthoringController',\n            resolve: {}\n          })\n          .state('root.project.asset', {\n            url: '/asset',\n            templateUrl: 'wise5/authoringTool/asset/asset.html',\n            controller: 'ProjectAssetController',\n            controllerAs: 'projectAssetController',\n            resolve: {}\n          })\n          .state('root.project.info', {\n            url: '/info',\n            templateUrl: 'wise5/authoringTool/info/info.html',\n            controller: 'ProjectInfoController',\n            controllerAs: 'projectInfoController',\n            resolve: {}\n          })\n          .state('root.project.history', {\n            url: '/history',\n            templateUrl: 'wise5/authoringTool/history/history.html',\n            controller: 'ProjectHistoryController',\n            controllerAs: 'projectHistoryController',\n            resolve: {}\n          })\n          .state('root.project.notebook', {\n            url: '/notebook',\n            templateUrl: 'wise5/authoringTool/notebook/notebook.html',\n            controller: 'AuthorNotebookController',\n            controllerAs: 'authorNotebookController',\n            resolve: {}\n          });\n\n      $translatePartialLoaderProvider.addPart('i18n');\n      $translatePartialLoaderProvider.addPart('authoringTool/i18n');\n      $translateProvider\n          .useLoader('$translatePartialLoader', {\n            urlTemplate: 'wise5/{part}/i18n_{lang}.json'\n          })\n          .registerAvailableLanguageKeys(\n            ['el','en','es','ja','ko','pt','tr','zh_CN','zh_TW'], {\n            'en_US': 'en',\n            'en_UK': 'en'\n          })\n          .determinePreferredLanguage()\n          .fallbackLanguage(['en'])\n          .useSanitizeValueStrategy('sanitizeParameters', 'escape');\n\n      $mdThemingProvider.definePalette('accent', {\n        '50': 'fde9e6',\n        '100': 'fbcbc4',\n        '200': 'f8aca1',\n        '300': 'f4897b',\n        '400': 'f2705f',\n        '500': 'f05843',\n        '600': 'da503c',\n        '700': 'c34736',\n        '800': 'aa3e2f',\n        '900': '7d2e23',\n        'A100': 'ff897d',\n        'A200': 'ff7061',\n        'A400': 'ff3829',\n        'A700': 'cc1705',\n        'contrastDefaultColor': 'light',\n        'contrastDarkColors': ['50', '100', '200', '300', 'A100'],\n        'contrastLightColors': undefined\n      });\n      $mdThemingProvider.theme('default')\n          .primaryPalette('deep-purple', { 'default': '400' })\n          .accentPalette('accent',  { 'default': '500' })\n          .warnPalette('red', { 'default': '800' });\n      const lightMap = $mdThemingProvider.extendPalette('grey', {\n      'A100': 'ffffff'\n      });\n      $mdThemingProvider.definePalette('light', lightMap);\n      $mdThemingProvider.theme('light')\n          .primaryPalette('light', { 'default': 'A100' })\n          .accentPalette('pink', { 'default': '900' });\n      $mdThemingProvider.setDefaultTheme('default');\n      $mdThemingProvider.enableBrowserColor();\n\n      // moment.js default overrides\n      // TODO: add i18n support\n      moment.updateLocale('en', {\n        calendar: {\n          lastDay : '[Yesterday at] LT',\n          sameDay : '[Today at] LT',\n          nextDay : '[Tomorrow at] LT',\n          lastWeek : '[last] dddd [at] LT',\n          nextWeek : 'dddd [at] LT',\n          sameElse : 'll'\n        }\n      });\n    }\n]);\n\nexport default authoringModule;\n"]}
\ No newline at end of file
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strict';\n\nimport '../themes/default/js/webfonts';\nimport 'jquery';\nimport angular from 'angular';\nimport angularDragula from 'angular-dragula';\nimport 'ng-file-upload';\nimport 'highcharts-ng';\nimport 'angular-ui-router';\nimport 'angular-material';\nimport 'angular-moment';\nimport 'angular-sanitize';\nimport 'lib/angular-toArrayFilter/toArrayFilter';\nimport 'angular-translate';\nimport 'angular-translate-loader-partial';\nimport 'angular-websocket';\nimport '../components/animation/animationComponentModule';\nimport AnnotationService from '../services/annotationService';\nimport '../components/audioOscillator/audioOscillatorComponentModule';\nimport './components/authoringToolComponents';\nimport AuthoringToolController from './authoringToolController';\nimport AuthoringToolMainController from './main/authoringToolMainController';\nimport AuthoringToolNewProjectController from './main/authoringToolNewProjectController';\nimport AuthoringToolProjectService from './authoringToolProjectService';\nimport AuthorNotebookController from './notebook/authorNotebookController';\nimport AuthorWebSocketService from '../services/authorWebSocketService';\nimport '../components/conceptMap/conceptMapComponentModule';\nimport ConfigService from '../services/configService';\nimport CRaterService from '../services/cRaterService';\nimport '../directives/components';\nimport ComponentService from '../components/componentService';\nimport '../components/discussion/discussionComponentModule';\nimport '../components/draw/drawComponentModule';\nimport '../components/embedded/embeddedComponentModule';\nimport '../filters/filters';\nimport '../lib/highcharts@4.2.1';\nimport '../components/graph/graphComponentModule';\nimport '../components/html/htmlComponentModule';\nimport '../components/label/labelComponentModule';\nimport '../components/match/matchComponentModule';\nimport '../components/multipleChoice/multipleChoiceComponentModule';\nimport NodeAuthoringController from './node/nodeAuthoringController';\nimport NodeService from '../services/nodeService';\nimport '../directives/notebook/notebook';\nimport NotebookService from '../services/notebookService';\nimport NotificationService from '../services/notificationService';\nimport '../components/openResponse/openResponseComponentModule';\nimport '../components/outsideURL/outsideURLComponentModule';\nimport ProjectAssetController from './asset/projectAssetController';\nimport ProjectAssetService from '../services/projectAssetService';\nimport ProjectController from './project/projectController';\nimport ProjectHistoryController from './history/projectHistoryController';\nimport ProjectInfoController from './info/projectInfoController';\nimport PlanningService from '../services/planningService';\nimport ProjectService from '../services/projectService';\nimport SessionService from '../services/sessionService';\nimport SpaceService from '../services/spaceService';\nimport StudentAssetService from '../services/studentAssetService';\nimport StudentDataService from '../services/studentDataService';\nimport StudentStatusService from '../services/studentStatusService';\nimport StudentWebSocketService from '../services/studentWebSocketService';\nimport '../components/table/tableComponentModule';\nimport TeacherDataService from '../services/teacherDataService';\nimport TeacherWebSocketService from '../services/teacherWebSocketService';\nimport UtilService from '../services/utilService';\nimport WISELinkAuthoringController from './wiseLink/wiseLinkAuthoringController';\n\nimport 'lib/angular-summernote/dist/angular-summernote.min';\nimport moment from 'moment';\n\nlet authoringModule = angular.module('authoring', [\n    angularDragula(angular),\n    'angularMoment',\n    'angular-toArrayFilter',\n    'animationComponentModule',\n    'audioOscillatorComponentModule',\n    'authoringTool.components',\n    'components',\n    'conceptMapComponentModule',\n    'discussionComponentModule',\n    'drawComponentModule',\n    'embeddedComponentModule',\n    'filters',\n    'graphComponentModule',\n    'highcharts-ng',\n    'htmlComponentModule',\n    'labelComponentModule',\n    'matchComponentModule',\n    'multipleChoiceComponentModule',\n    'ngAnimate',\n    'ngAria',\n    'ngFileUpload',\n    'ngMaterial',\n    'ngSanitize',\n    'ngWebSocket',\n    'notebook',\n    'openResponseComponentModule',\n    'outsideURLComponentModule',\n    'pascalprecht.translate',\n    'summernote',\n    'tableComponentModule',\n    'ui.router'\n    ])\n    .service(AnnotationService.name, AnnotationService)\n    .service(AuthorWebSocketService.name, AuthorWebSocketService)\n    .service(ComponentService.name, ComponentService)\n    .service(ConfigService.name, ConfigService)\n    .service(CRaterService.name, CRaterService)\n    .service(NodeService.name, NodeService)\n    .service(NotebookService.name, NotebookService)\n    .service(NotificationService.name, NotificationService)\n    .service(PlanningService.name, PlanningService)\n    .service(ProjectService.name, AuthoringToolProjectService)\n    .service(ProjectAssetService.name, ProjectAssetService)\n    .service(SessionService.name, SessionService)\n    .service(SpaceService.name, SpaceService)\n    .service(StudentAssetService.name, StudentAssetService)\n    .service(StudentDataService.name, StudentDataService)\n    .service(StudentStatusService.name, StudentStatusService)\n    .service(StudentWebSocketService.name, StudentWebSocketService)\n    .service(TeacherDataService.name, TeacherDataService)\n    .service(TeacherWebSocketService.name, TeacherWebSocketService)\n    .service(UtilService.name, UtilService)\n    .controller(AuthoringToolController.name, AuthoringToolController)\n    .controller(AuthoringToolMainController.name, AuthoringToolMainController)\n    .controller(AuthoringToolNewProjectController.name, AuthoringToolNewProjectController)\n    .controller(AuthorNotebookController.name, AuthorNotebookController)\n    .controller(NodeAuthoringController.name, NodeAuthoringController)\n    .controller(ProjectAssetController.name, ProjectAssetController)\n    .controller(ProjectController.name, ProjectController)\n    .controller(ProjectHistoryController.name, ProjectHistoryController)\n    .controller(ProjectInfoController.name, ProjectInfoController)\n    .controller(WISELinkAuthoringController.name, WISELinkAuthoringController)\n    .config([\n    '$urlRouterProvider',\n    '$stateProvider',\n    '$translateProvider',\n    '$translatePartialLoaderProvider',\n    '$controllerProvider',\n    '$mdThemingProvider',\n    ($urlRouterProvider,\n     $stateProvider,\n     $translateProvider,\n     $translatePartialLoaderProvider,\n     $controllerProvider,\n     $mdThemingProvider) => {\n\n      $urlRouterProvider.otherwise('/');\n\n      $stateProvider\n          .state('root', {\n            url: '',\n            abstract: true,\n            templateUrl: 'wise5/authoringTool/authoringTool.html',\n            controller: 'AuthoringToolController',\n            controllerAs: 'authoringToolController',\n            resolve: {}\n          })\n          .state('root.main', {\n            url: '/',\n            templateUrl: 'wise5/authoringTool/main/main.html',\n            controller: 'AuthoringToolMainController',\n            controllerAs: 'authoringToolMainController',\n            resolve: {\n              config: (ConfigService) => {\n                return ConfigService.retrieveConfig(window.configURL);\n              },\n              language: ($translate, ConfigService, config) => {\n                $translate.use(ConfigService.getLocale());\n              },\n              sessionTimers: (SessionService, config) => {\n                return SessionService.initializeSession();\n              }\n            }\n          })\n          .state('root.new', {\n            url: '/new',\n            templateUrl: 'wise5/authoringTool/main/new.html',\n            controller: 'AuthoringToolNewProjectController',\n            controllerAs: 'authoringToolNewProjectController',\n            resolve: {\n              config: (ConfigService) => {\n                return ConfigService.retrieveConfig(window.configURL);\n              },\n              language: ($translate, ConfigService, config) => {\n                $translate.use(ConfigService.getLocale());\n              },\n              sessionTimers: (SessionService, config) => {\n                return SessionService.initializeSession();\n              }\n            }\n          })\n          .state('root.project', {\n            url: '/project/:projectId',\n            templateUrl: 'wise5/authoringTool/project/project.html',\n            controller: 'ProjectController',\n            controllerAs: 'projectController',\n            resolve: {\n              projectConfig: (ConfigService, $stateParams) => {\n                const configURL = window.configURL + '/' + $stateParams.projectId;\n                return ConfigService.retrieveConfig(configURL);\n              },\n              project: (ProjectService, projectConfig) => {\n                return ProjectService.retrieveProject();\n              },\n              projectAssets: (ProjectAssetService, projectConfig, project) => {\n                return ProjectAssetService.retrieveProjectAssets();\n              },\n              language: ($translate, ConfigService, projectConfig) => {\n                $translate.use(ConfigService.getLocale());\n              },\n              sessionTimers: (SessionService, projectConfig) => {\n                return SessionService.initializeSession();\n              },\n              webSocket: (AuthorWebSocketService, projectConfig) => {\n                return AuthorWebSocketService.initialize();\n              }\n            }\n          })\n          .state('root.project.node', {\n            url: '/node/:nodeId',\n            templateUrl: 'wise5/authoringTool/node/node.html',\n            controller: 'NodeAuthoringController',\n            controllerAs: 'nodeAuthoringController',\n            resolve: {}\n          })\n          .state('root.project.nodeConstraints', {\n            url: '/node/constraints/:nodeId',\n            templateUrl: 'wise5/authoringTool/node/node.html',\n            controller: 'NodeAuthoringController',\n            controllerAs: 'nodeAuthoringController',\n            resolve: {}\n          })\n          .state('root.project.nodeEditPaths', {\n            url: '/node/editpaths/:nodeId',\n            templateUrl: 'wise5/authoringTool/node/node.html',\n            controller: 'NodeAuthoringController',\n            controllerAs: 'nodeAuthoringController',\n            resolve: {}\n          })\n          .state('root.project.asset', {\n            url: '/asset',\n            templateUrl: 'wise5/authoringTool/asset/asset.html',\n            controller: 'ProjectAssetController',\n            controllerAs: 'projectAssetController',\n            resolve: {}\n          })\n          .state('root.project.info', {\n            url: '/info',\n            templateUrl: 'wise5/authoringTool/info/info.html',\n            controller: 'ProjectInfoController',\n            controllerAs: 'projectInfoController',\n            resolve: {}\n          })\n          .state('root.project.history', {\n            url: '/history',\n            templateUrl: 'wise5/authoringTool/history/history.html',\n            controller: 'ProjectHistoryController',\n            controllerAs: 'projectHistoryController',\n            resolve: {}\n          })\n          .state('root.project.notebook', {\n            url: '/notebook',\n            templateUrl: 'wise5/authoringTool/notebook/notebook.html',\n            controller: 'AuthorNotebookController',\n            controllerAs: 'authorNotebookController',\n            resolve: {}\n          });\n\n      $translatePartialLoaderProvider.addPart('i18n');\n      $translatePartialLoaderProvider.addPart('authoringTool/i18n');\n      $translateProvider\n          .useLoader('$translatePartialLoader', {\n            urlTemplate: 'wise5/{part}/i18n_{lang}.json'\n          })\n          .registerAvailableLanguageKeys(\n            ['el','en','es','ja','ko','pt','tr','zh_CN','zh_TW'], {\n            'en_US': 'en',\n            'en_UK': 'en'\n          })\n          .determinePreferredLanguage()\n          .fallbackLanguage(['en'])\n          .useSanitizeValueStrategy('sanitizeParameters', 'escape');\n\n      $mdThemingProvider.definePalette('accent', {\n        '50': 'fde9e6',\n        '100': 'fbcbc4',\n        '200': 'f8aca1',\n        '300': 'f4897b',\n        '400': 'f2705f',\n        '500': 'f05843',\n        '600': 'da503c',\n        '700': 'c34736',\n        '800': 'aa3e2f',\n        '900': '7d2e23',\n        'A100': 'ff897d',\n        'A200': 'ff7061',\n        'A400': 'ff3829',\n        'A700': 'cc1705',\n        'contrastDefaultColor': 'light',\n        'contrastDarkColors': ['50', '100', '200', '300', 'A100'],\n        'contrastLightColors': undefined\n      });\n      $mdThemingProvider.theme('default')\n          .primaryPalette('deep-purple', { 'default': '400' })\n          .accentPalette('accent',  { 'default': '500' })\n          .warnPalette('red', { 'default': '800' });\n      const lightMap = $mdThemingProvider.extendPalette('grey', {\n      'A100': 'ffffff'\n      });\n      $mdThemingProvider.definePalette('light', lightMap);\n      $mdThemingProvider.theme('light')\n          .primaryPalette('light', { 'default': 'A100' })\n          .accentPalette('pink', { 'default': '900' });\n      $mdThemingProvider.setDefaultTheme('default');\n      $mdThemingProvider.enableBrowserColor();\n\n      // moment.js default overrides\n      // TODO: add i18n support\n      moment.updateLocale('en', {\n        calendar: {\n          lastDay : '[Yesterday at] LT',\n          sameDay : '[Today at] LT',\n          nextDay : '[Tomorrow at] LT',\n          lastWeek : '[last] dddd [at] LT',\n          nextWeek : 'dddd [at] LT',\n          sameElse : 'll'\n        }\n      });\n    }\n]);\n\nexport default authoringModule;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/authoringTool/node/node.html b/src/main/webapp/wise5/authoringTool/node/node.html
index 57657f36b4..3a80f76150 100644
--- a/src/main/webapp/wise5/authoringTool/node/node.html
+++ b/src/main/webapp/wise5/authoringTool/node/node.html
@@ -795,7 +795,9 @@ <h6 ng-if='projectController.isGroupNode(nodeAuthoringController.nodeId)'>{{ 'ed
       <h6 ng-if='!projectController.isGroupNode(nodeAuthoringController.nodeId)'>{{ 'editStepJSON' | translate }}</h6>
       <md-input-container style='width: 100%;'>
         <textarea ng-model='nodeAuthoringController.authoringNodeContentJSONString'
-              style='width: 90%; border: 1px solid black;'></textarea>
+            ng-change='nodeAuthoringController.autoSaveJSON()'
+            ng-model-options='{ debounce: 1000 }'
+            style='width: 90%; border: 1px solid black;'></textarea>
       </md-input-container>
     </div>
   </div>
diff --git a/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.es6 b/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.es6
index e65b58ddcc..0b7f275e39 100644
--- a/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.es6
+++ b/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.es6
@@ -717,7 +717,7 @@ class NodeAuthoringController {
    */
   showSaveErrorAdvancedAuthoring() {
     alert(this.$translate('saveErrorAdvancedAuthoring'));
-  };
+  }
 
   /**
    * The author has clicked the cancel button which will revert all
@@ -1357,9 +1357,8 @@ class NodeAuthoringController {
       this.showStepButtons = true;
       this.showComponents = true;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'generalAdvanced') {
-      // save and parse the JSON if it has changed
-      this.saveAndParseJSON();
       // toggle the edit transitions view and hide all the other views
       this.showCreateComponent = false;
       this.showGeneralAdvanced = !this.showGeneralAdvanced;
@@ -1373,9 +1372,8 @@ class NodeAuthoringController {
       this.showStepButtons = false;
       this.showComponents = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'editTransitions') {
-      // save and parse the JSON if it has changed
-      this.saveAndParseJSON();
       // toggle the edit transitions view and hide all the other views
       this.showCreateComponent = false;
       this.showGeneralAdvanced = false;
@@ -1389,9 +1387,8 @@ class NodeAuthoringController {
       this.showStepButtons = false;
       this.showComponents = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'editConstraints') {
-      // save and parse the JSON if it has changed
-      this.saveAndParseJSON();
       // toggle the edit constraints view and hide all the other views
       this.showCreateComponent = false;
       this.showGeneralAdvanced = false;
@@ -1405,6 +1402,7 @@ class NodeAuthoringController {
       this.showStepButtons = false;
       this.showComponents = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'editButtons') {
       // toggle the edit buttons view and hide all the other views
       this.showCreateComponent = false;
@@ -1418,6 +1416,7 @@ class NodeAuthoringController {
       this.showImportView = false;
       this.showStepButtons = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'editRubric') {
       // toggle the edit buttons view and hide all the other views
       this.showCreateComponent = false;
@@ -1432,9 +1431,8 @@ class NodeAuthoringController {
       this.showStepButtons = false;
       this.showComponents = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'createBranch') {
-      // save and parse the JSON if it has changed
-      this.saveAndParseJSON();
       // toggle the edit buttons view and hide all the other views
       this.showCreateComponent = false;
       this.showGeneralAdvanced = false;
@@ -1448,6 +1446,7 @@ class NodeAuthoringController {
       this.showStepButtons = false;
       this.showComponents = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'previousNode') {
       // hide all the other views
       this.showCreateComponent = false;
@@ -1460,6 +1459,7 @@ class NodeAuthoringController {
       this.showAdvanced = false;
       this.showImportView = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
       let prevNodeId = this.ProjectService.getPreviousNodeId(this.nodeId);
       if (prevNodeId != null) {
         // there is a previous node id so we will go to it
@@ -1481,6 +1481,7 @@ class NodeAuthoringController {
       this.showAdvanced = false;
       this.showImportView = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
       let nextNodeId = this.ProjectService.getNextNodeId(this.nodeId);
       if (nextNodeId != null) {
         // there is a next node id so we will go to it
@@ -1504,6 +1505,7 @@ class NodeAuthoringController {
       this.showStepButtons = false;
       this.showComponents = false;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'copy') {
       // toggle the copy view and hide all the other views
       this.showCreateComponent = false;
@@ -1518,6 +1520,7 @@ class NodeAuthoringController {
       this.showStepButtons = true;
       this.showComponents = true;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'move') {
       // toggle the move view and hide all the other views
       this.showCreateComponent = false;
@@ -1532,6 +1535,7 @@ class NodeAuthoringController {
       this.showStepButtons = true;
       this.showComponents = true;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'import') {
       // toggle the import view and hide all the other views
       this.showCreateComponent = false;
@@ -1546,9 +1550,8 @@ class NodeAuthoringController {
       this.showStepButtons = false;
       this.showComponents = true;
       this.showJSON = false;
+      this.UtilService.hideJSONValidMessage();
     } else if (view == 'showJSON') {
-      // save and parse the JSON if it has changed
-      this.saveAndParseJSON();
       // toggle the import view and hide all the other views
       this.showCreateComponent = false;
       this.showGeneralAdvanced = false;
@@ -1561,8 +1564,24 @@ class NodeAuthoringController {
       this.showImportView = false;
       this.showStepButtons = false;
       this.showComponents = false;
-      this.authoringNodeContentJSONString = angular.toJson(this.node, 4);
-      this.showJSON = !this.showJSON;
+      if (this.showJSON) {
+        // we were showing the JSON view and the author now wants to hide it
+        if (!this.isJSONValid()) {
+          if (confirm(this.$translate('jsonInvalidErrorMessage'))) {
+            // the author wants to revert back to the last valid JSON
+            this.toggleJSONAuthoringView();
+            this.UtilService.hideJSONValidMessage();
+          }
+        } else {
+          this.toggleJSONAuthoringView();
+          this.UtilService.hideJSONValidMessage();
+        }
+      } else {
+        // we were not showing the JSON view and now the author wants to show it
+        this.toggleJSONAuthoringView();
+        this.authoringNodeContentJSONString = angular.toJson(this.node, 4);
+        this.UtilService.showJSONValidMessage();
+      }
     } else {
       // hide all the views
       this.showCreateComponent = false;
@@ -1580,6 +1599,19 @@ class NodeAuthoringController {
     }
   }
 
+  isJSONValid() {
+    try {
+      angular.fromJson(this.authoringNodeContentJSONString);
+      return true;
+    } catch(e) {
+      return false;
+    }
+  }
+
+  toggleJSONAuthoringView() {
+    this.showJSON = !this.showJSON;
+  }
+
   /**
    * The author has changed the number of branch paths
    * TODO refactor long function
@@ -3254,13 +3286,7 @@ class NodeAuthoringController {
    */
   backButtonClicked() {
     if (this.showImportView || this.showRubric || this.showAdvanced) {
-      if (this.showJSON) {
-        /*
-         * we are showing the JSON so we will check if it has changed
-         * and then save and parse the JSON
-         */
-        this.saveAndParseJSON();
-      }
+      this.UtilService.hideJSONValidMessage();
 
       // we are in the import view so we will go back to the node view
       this.nodeAuthoringViewButtonClicked();
@@ -3350,41 +3376,35 @@ class NodeAuthoringController {
   }
 
   /**
-   * Check if the JSON has changed and then save and parse the JSON
+   * Save the project JSON to the server if the JSON is valid.
    */
-  saveAndParseJSON() {
-    if (this.showJSON) {
-      /*
-       * We are showing the JSON so we will now check to see if the
-       * JSON changed. If the JSON changed we will save the node with
-       * new JSON.
-       */
-      if (this.authoringNodeContentJSONString != angular.toJson(this.node, 4)) {
-        // the JSON has been changed so we will update the node
-
-        // create the updated node object
-        let updatedNode = angular.fromJson(this.authoringNodeContentJSONString);
+  autoSaveJSON() {
+    try {
+      // create the updated node object
+      let updatedNode = angular.fromJson(this.authoringNodeContentJSONString);
 
-        // set the updated node into the project
-        this.ProjectService.setNode(this.nodeId, updatedNode);
+      // set the updated node into the project
+      this.ProjectService.setNode(this.nodeId, updatedNode);
 
-        // set the updated node into this controller
-        this.node = updatedNode;
+      // set the updated node into this controller
+      this.node = updatedNode;
 
-        // set the components into this controller
-        this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);
+      // set the components into this controller
+      this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);
 
-        // set the current node
-        this.TeacherDataService.setCurrentNodeByNodeId(this.nodeId);
+      // set the current node
+      this.TeacherDataService.setCurrentNodeByNodeId(this.nodeId);
 
-        // update the branch authoring fields into the controller
-        this.populateBranchAuthoring();
+      // update the branch authoring fields into the controller
+      this.populateBranchAuthoring();
 
-        // save the project
-        this.authoringViewNodeChanged().then(() => {
-          this.$rootScope.$broadcast('parseProject');
-        });
-      }
+      // save the project
+      this.authoringViewNodeChanged().then(() => {
+        this.$rootScope.$broadcast('parseProject');
+      });
+      this.UtilService.showJSONValidMessage();
+    } catch(e) {
+      this.UtilService.showJSONInvalidMessage();
     }
   }
 
diff --git a/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.js b/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.js
index eae3f1616a..3d2852741c 100644
--- a/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.js
+++ b/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.js
@@ -667,14 +667,14 @@ var NodeAuthoringController = function () {
     value: function showSaveErrorAdvancedAuthoring() {
       alert(this.$translate('saveErrorAdvancedAuthoring'));
     }
-  }, {
-    key: 'cancel',
-
 
     /**
      * The author has clicked the cancel button which will revert all
      * the recent changes since they opened the node.
      */
+
+  }, {
+    key: 'cancel',
     value: function cancel() {
       // check if the user has made any changes
       if (!angular.equals(this.node, this.originalNodeCopy)) {
@@ -1513,9 +1513,8 @@ var NodeAuthoringController = function () {
         this.showStepButtons = true;
         this.showComponents = true;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'generalAdvanced') {
-        // save and parse the JSON if it has changed
-        this.saveAndParseJSON();
         // toggle the edit transitions view and hide all the other views
         this.showCreateComponent = false;
         this.showGeneralAdvanced = !this.showGeneralAdvanced;
@@ -1529,9 +1528,8 @@ var NodeAuthoringController = function () {
         this.showStepButtons = false;
         this.showComponents = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'editTransitions') {
-        // save and parse the JSON if it has changed
-        this.saveAndParseJSON();
         // toggle the edit transitions view and hide all the other views
         this.showCreateComponent = false;
         this.showGeneralAdvanced = false;
@@ -1545,9 +1543,8 @@ var NodeAuthoringController = function () {
         this.showStepButtons = false;
         this.showComponents = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'editConstraints') {
-        // save and parse the JSON if it has changed
-        this.saveAndParseJSON();
         // toggle the edit constraints view and hide all the other views
         this.showCreateComponent = false;
         this.showGeneralAdvanced = false;
@@ -1561,6 +1558,7 @@ var NodeAuthoringController = function () {
         this.showStepButtons = false;
         this.showComponents = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'editButtons') {
         // toggle the edit buttons view and hide all the other views
         this.showCreateComponent = false;
@@ -1574,6 +1572,7 @@ var NodeAuthoringController = function () {
         this.showImportView = false;
         this.showStepButtons = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'editRubric') {
         // toggle the edit buttons view and hide all the other views
         this.showCreateComponent = false;
@@ -1588,9 +1587,8 @@ var NodeAuthoringController = function () {
         this.showStepButtons = false;
         this.showComponents = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'createBranch') {
-        // save and parse the JSON if it has changed
-        this.saveAndParseJSON();
         // toggle the edit buttons view and hide all the other views
         this.showCreateComponent = false;
         this.showGeneralAdvanced = false;
@@ -1604,6 +1602,7 @@ var NodeAuthoringController = function () {
         this.showStepButtons = false;
         this.showComponents = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'previousNode') {
         // hide all the other views
         this.showCreateComponent = false;
@@ -1616,6 +1615,7 @@ var NodeAuthoringController = function () {
         this.showAdvanced = false;
         this.showImportView = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
         var prevNodeId = this.ProjectService.getPreviousNodeId(this.nodeId);
         if (prevNodeId != null) {
           // there is a previous node id so we will go to it
@@ -1637,6 +1637,7 @@ var NodeAuthoringController = function () {
         this.showAdvanced = false;
         this.showImportView = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
         var nextNodeId = this.ProjectService.getNextNodeId(this.nodeId);
         if (nextNodeId != null) {
           // there is a next node id so we will go to it
@@ -1660,6 +1661,7 @@ var NodeAuthoringController = function () {
         this.showStepButtons = false;
         this.showComponents = false;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'copy') {
         // toggle the copy view and hide all the other views
         this.showCreateComponent = false;
@@ -1674,6 +1676,7 @@ var NodeAuthoringController = function () {
         this.showStepButtons = true;
         this.showComponents = true;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'move') {
         // toggle the move view and hide all the other views
         this.showCreateComponent = false;
@@ -1688,6 +1691,7 @@ var NodeAuthoringController = function () {
         this.showStepButtons = true;
         this.showComponents = true;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'import') {
         // toggle the import view and hide all the other views
         this.showCreateComponent = false;
@@ -1702,9 +1706,8 @@ var NodeAuthoringController = function () {
         this.showStepButtons = false;
         this.showComponents = true;
         this.showJSON = false;
+        this.UtilService.hideJSONValidMessage();
       } else if (view == 'showJSON') {
-        // save and parse the JSON if it has changed
-        this.saveAndParseJSON();
         // toggle the import view and hide all the other views
         this.showCreateComponent = false;
         this.showGeneralAdvanced = false;
@@ -1717,8 +1720,24 @@ var NodeAuthoringController = function () {
         this.showImportView = false;
         this.showStepButtons = false;
         this.showComponents = false;
-        this.authoringNodeContentJSONString = angular.toJson(this.node, 4);
-        this.showJSON = !this.showJSON;
+        if (this.showJSON) {
+          // we were showing the JSON view and the author now wants to hide it
+          if (!this.isJSONValid()) {
+            if (confirm(this.$translate('jsonInvalidErrorMessage'))) {
+              // the author wants to revert back to the last valid JSON
+              this.toggleJSONAuthoringView();
+              this.UtilService.hideJSONValidMessage();
+            }
+          } else {
+            this.toggleJSONAuthoringView();
+            this.UtilService.hideJSONValidMessage();
+          }
+        } else {
+          // we were not showing the JSON view and now the author wants to show it
+          this.toggleJSONAuthoringView();
+          this.authoringNodeContentJSONString = angular.toJson(this.node, 4);
+          this.UtilService.showJSONValidMessage();
+        }
       } else {
         // hide all the views
         this.showCreateComponent = false;
@@ -1735,6 +1754,21 @@ var NodeAuthoringController = function () {
         this.showJSON = false;
       }
     }
+  }, {
+    key: 'isJSONValid',
+    value: function isJSONValid() {
+      try {
+        angular.fromJson(this.authoringNodeContentJSONString);
+        return true;
+      } catch (e) {
+        return false;
+      }
+    }
+  }, {
+    key: 'toggleJSONAuthoringView',
+    value: function toggleJSONAuthoringView() {
+      this.showJSON = !this.showJSON;
+    }
 
     /**
      * The author has changed the number of branch paths
@@ -3773,13 +3807,7 @@ var NodeAuthoringController = function () {
     key: 'backButtonClicked',
     value: function backButtonClicked() {
       if (this.showImportView || this.showRubric || this.showAdvanced) {
-        if (this.showJSON) {
-          /*
-           * we are showing the JSON so we will check if it has changed
-           * and then save and parse the JSON
-           */
-          this.saveAndParseJSON();
-        }
+        this.UtilService.hideJSONValidMessage();
 
         // we are in the import view so we will go back to the node view
         this.nodeAuthoringViewButtonClicked();
@@ -3940,46 +3968,40 @@ var NodeAuthoringController = function () {
     }
 
     /**
-     * Check if the JSON has changed and then save and parse the JSON
+     * Save the project JSON to the server if the JSON is valid.
      */
 
   }, {
-    key: 'saveAndParseJSON',
-    value: function saveAndParseJSON() {
+    key: 'autoSaveJSON',
+    value: function autoSaveJSON() {
       var _this9 = this;
 
-      if (this.showJSON) {
-        /*
-         * We are showing the JSON so we will now check to see if the
-         * JSON changed. If the JSON changed we will save the node with
-         * new JSON.
-         */
-        if (this.authoringNodeContentJSONString != angular.toJson(this.node, 4)) {
-          // the JSON has been changed so we will update the node
-
-          // create the updated node object
-          var updatedNode = angular.fromJson(this.authoringNodeContentJSONString);
+      try {
+        // create the updated node object
+        var updatedNode = angular.fromJson(this.authoringNodeContentJSONString);
 
-          // set the updated node into the project
-          this.ProjectService.setNode(this.nodeId, updatedNode);
+        // set the updated node into the project
+        this.ProjectService.setNode(this.nodeId, updatedNode);
 
-          // set the updated node into this controller
-          this.node = updatedNode;
+        // set the updated node into this controller
+        this.node = updatedNode;
 
-          // set the components into this controller
-          this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);
+        // set the components into this controller
+        this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);
 
-          // set the current node
-          this.TeacherDataService.setCurrentNodeByNodeId(this.nodeId);
+        // set the current node
+        this.TeacherDataService.setCurrentNodeByNodeId(this.nodeId);
 
-          // update the branch authoring fields into the controller
-          this.populateBranchAuthoring();
+        // update the branch authoring fields into the controller
+        this.populateBranchAuthoring();
 
-          // save the project
-          this.authoringViewNodeChanged().then(function () {
-            _this9.$rootScope.$broadcast('parseProject');
-          });
-        }
+        // save the project
+        this.authoringViewNodeChanged().then(function () {
+          _this9.$rootScope.$broadcast('parseProject');
+        });
+        this.UtilService.showJSONValidMessage();
+      } catch (e) {
+        this.UtilService.showJSONInvalidMessage();
       }
     }
 
diff --git a/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.js.map b/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.js.map
index 90a9ee3b9a..fea4bda627 100644
--- a/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.js.map
+++ b/src/main/webapp/wise5/authoringTool/node/nodeAuthoringController.js.map
@@ -1 +1 @@
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strict';\n\nclass NodeAuthoringController {\n\n  constructor(\n      $anchorScroll,\n      $filter,\n      $injector,\n      $location,\n      $mdDialog,\n      $rootScope,\n      $scope,\n      $state,\n      $stateParams,\n      $timeout,\n      ConfigService,\n      NodeService,\n      ProjectAssetService,\n      ProjectService,\n      TeacherDataService,\n      UtilService) {\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$location = $location;\n    this.$mdDialog = $mdDialog;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$state = $state;\n    this.$stateParams = $stateParams;\n    this.$timeout = $timeout;\n    this.$translate = this.$filter('translate');\n    this.ConfigService = ConfigService;\n    this.NodeService = NodeService;\n    this.ProjectAssetService = ProjectAssetService;\n    this.ProjectService = ProjectService;\n    this.TeacherDataService = TeacherDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n    this.projectId = $stateParams.projectId;\n    this.nodeId = $stateParams.nodeId;\n    this.showCreateComponent = false;\n    this.showEditTransitions = false;\n    this.selectedComponent = null;\n    this.nodeCopy = null;\n    this.undoStack = [];\n    this.howToChooseAmongAvailablePathsOptions =\n        [null, 'random', 'workgroupId', 'firstAvailable', 'lastAvailable'];\n    this.whenToChoosePathOptions =\n        [null, 'enterNode', 'exitNode', 'scoreChanged', 'studentDataChanged'];\n    this.canChangePathOptions = [null, true, false];\n    this.createBranchBranches = [];\n    this.showComponents = true;\n    this.showStepButtons = true;\n    this.showComponentAuthoringViews = true;\n\n    // mapping from component id to whether the component checkbox is checked\n    this.componentsToChecked = {};\n\n    this.TeacherDataService.setCurrentNodeByNodeId(this.nodeId);\n\n    // the available constraint actions\n    this.constraintActions = [\n      {\n        value: \"\",\n        text: this.$translate('pleaseChooseAnAction')\n      },\n      {\n        value: \"makeAllNodesAfterThisNotVisitable\",\n        text: this.$translate('makeAllNodesAfterThisNotVisitable')\n      },\n      {\n        value: \"makeAllNodesAfterThisNotVisible\",\n        text: this.$translate('makeAllNodesAfterThisNotVisible')\n      },\n      {\n        value: \"makeAllOtherNodesNotVisitable\",\n        text: this.$translate('makeAllOtherNodesNotVisitable')\n      },\n      {\n        value: \"makeAllOtherNodesNotVisible\",\n        text: this.$translate('makeAllOtherNodesNotVisible')\n      },\n      {\n        value: \"makeThisNodeNotVisitable\",\n        text: this.$translate('makeThisNodeNotVisitable')\n      },\n      {\n        value: \"makeThisNodeNotVisible\",\n        text: this.$translate('makeThisNodeNotVisible')\n      }\n    ];\n\n    // the available removal conditionals\n    this.removalConditionals = [\n      {\n        value: \"all\",\n        text: this.$translate('all')\n      },\n      {\n        value: \"any\",\n        text: this.$translate('any')\n      }\n    ];\n\n    // the available removal criteria\n    this.removalCriteria = [\n      {\n        value: \"\",\n        text: this.$translate('pleaseChooseARemovalCriteria')\n      },\n      {\n        value: \"isCompleted\",\n        text: this.$translate('isCompleted'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          }\n        ]\n      },\n      {\n        value: \"score\",\n        text: this.$translate('SCORE'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"component\",\n            text: this.$translate('component')\n          },\n          {\n            value: \"scores\",\n            text: this.$translate('scoresParens')\n          }\n        ]\n      },\n      {\n        value: \"branchPathTaken\",\n        text: this.$translate('branchPathTaken'),\n        params: [\n          {\n            value: \"fromNodeId\",\n            text: this.$translate('fromStep')\n          },\n          {\n            value: \"toNodeId\",\n            text: this.$translate('toStep')\n          }\n        ]\n      },\n      {\n        value: \"choiceChosen\",\n        text: this.$translate('choiceChosen'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('component')\n          },\n          {\n            value: \"choiceIds\",\n            text: this.$translate('choices')\n          }\n        ]\n      },\n      {\n        value: \"isCorrect\",\n        text: this.$translate('IS_CORRECT'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('component')\n          }\n        ]\n      },\n      {\n        value: \"usedXSubmits\",\n        text: this.$translate('usedXSubmits'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('component')\n          },\n          {\n            value: \"requiredSubmitCount\",\n            text: this.$translate('requiredSubmitCount')\n          }\n        ]\n      },\n      {\n        value: \"isVisible\",\n        text: this.$translate('isVisible'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          }\n        ]\n      },\n      {\n        value: \"isVisitable\",\n        text: this.$translate('isVisitable'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          }\n        ]\n      },\n      {\n        value: \"isVisited\",\n        text: this.$translate('isVisited'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          }\n        ]\n      },\n      {\n        value: \"isPlanningActivityCompleted\",\n        text: this.$translate('isPlanningActivityCompleted')\n      },\n      {\n        value: \"wroteXNumberOfWords\",\n        text: this.$translate('wroteXNumberOfWords'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('component')\n          },\n          {\n            value: \"requiredNumberOfWords\",\n            text: this.$translate('requiredNumberOfWords')\n          }\n        ]\n      }\n    ];\n\n    // available transitionCriterias\n    this.transitionCriterias = [\n      {\n        value: \"score\",\n        text: this.$translate('getASpecificScoreOnAComponent'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('nodeID')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('componentID')\n          },\n          {\n            value: \"scores\",\n            text: this.$translate('scoresParens')\n          }\n        ]\n      },\n      {\n        value: \"choiceChosen\",\n        text: this.$translate('chooseASpecificChoiceOnAComponent'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('nodeID')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('componentID')\n          },\n          {\n            value: \"choiceIds\",\n            text: this.$translate('choices')\n          }\n        ]\n      }\n    ];\n\n    this.branchCriteria = [\n      {\n        value: \"workgroupId\",\n        text: this.$translate('WORKGROUP_ID')\n      },\n      {\n        value: \"score\",\n        text: this.$translate('SCORE')\n      },\n      {\n        value: \"choiceChosen\",\n        text: this.$translate('choiceChosen')\n      },\n      {\n        value: \"random\",\n        text: this.$translate('random')\n      }\n    ];\n\n    // the array of component types that can be created\n    // TODO: automate by looping through active component types for this WISE instance\n    this.componentTypes = [\n      {componentType: 'Animation', componentName: this.UtilService.getComponentTypeLabel('Animation')},\n      {componentType: 'AudioOscillator', componentName: this.UtilService.getComponentTypeLabel('AudioOscillator')},\n      {componentType: 'ConceptMap', componentName: this.UtilService.getComponentTypeLabel('ConceptMap')},\n      {componentType: 'Discussion', componentName: this.UtilService.getComponentTypeLabel('Discussion')},\n      {componentType: 'Draw', componentName: this.UtilService.getComponentTypeLabel('Draw')},\n      {componentType: 'Embedded', componentName: this.UtilService.getComponentTypeLabel('Embedded')},\n      {componentType: 'Graph', componentName: this.UtilService.getComponentTypeLabel('Graph')},\n      {componentType: 'HTML', componentName: this.UtilService.getComponentTypeLabel('HTML')},\n      {componentType: 'Label', componentName: this.UtilService.getComponentTypeLabel('Label')},\n      {componentType: 'Match', componentName: this.UtilService.getComponentTypeLabel('Match')},\n      {componentType: 'MultipleChoice', componentName: this.UtilService.getComponentTypeLabel('MultipleChoice')},\n      {componentType: 'OpenResponse', componentName: this.UtilService.getComponentTypeLabel('OpenResponse')},\n      {componentType: 'OutsideURL', componentName: this.UtilService.getComponentTypeLabel('OutsideURL')},\n      {componentType: 'Table', componentName: this.UtilService.getComponentTypeLabel('Table')}\n    ];\n\n    // select the first component type by default\n    this.selectedComponent = this.componentTypes[0].componentType;\n    this.node = this.ProjectService.getNodeById(this.nodeId);\n\n    // get the step number e.g. 1.3\n    this.nodePosition = this.ProjectService.getNodePositionById(this.nodeId);\n\n    // get the components in the node\n    this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);\n\n    /*\n     * remember a copy of the node at the beginning of this node authoring\n     * session in case we need to roll back if the user decides to\n     * cancel/revert all the changes.\n     */\n    this.originalNodeCopy = this.UtilService.makeCopyOfJSONObject(this.node);\n\n    /*\n     * remember the current version of the node. this will be updated each\n     * time the user makes a change.\n     */\n    this.currentNodeCopy = this.UtilService.makeCopyOfJSONObject(this.node);\n\n    // populate the branch authoring if any\n    this.populateBranchAuthoring();\n\n    // create the summernote rubric element id\n    this.summernoteRubricId = 'summernoteRubric_' + this.nodeId;\n\n    // the tooltip text for the insert WISE asset button\n    let insertAssetString = this.$translate('INSERT_ASSET');\n\n    /*\n     * create the custom button for inserting WISE assets into\n     * summernote\n     */\n    let insertAssetButton = this.UtilService.createInsertAssetButton(\n        this, null, this.nodeId, null, 'rubric', insertAssetString);\n\n    /*\n     * the options that specifies the tools to display in the\n     * summernote prompt\n     */\n    this.summernoteRubricOptions = {\n      toolbar: [\n        ['style', ['style']],\n        ['font', ['bold', 'underline', 'clear']],\n        ['fontname', ['fontname']],\n        ['fontsize', ['fontsize']],\n        ['color', ['color']],\n        ['para', ['ul', 'ol', 'paragraph']],\n        ['table', ['table']],\n        ['insert', ['link', 'video']],\n        ['view', ['fullscreen', 'codeview', 'help']],\n        ['customButton', ['insertAssetButton']]\n      ],\n      height: 300,\n      disableDragAndDrop: true,\n      buttons: {\n        insertAssetButton: insertAssetButton\n      }\n    };\n\n    /*\n     * inject the asset paths into the rubric html and set the summernote\n     * rubric html\n     */\n    this.summernoteRubricHTML =\n        this.ProjectService.replaceAssetPaths(this.node.rubric);\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     * TODO refactor too many nesting\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n      if (args != null) {\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == null) {\n          // the asset was selected for this component\n          if (args.assetItem != null && args.assetItem.fileName != null) {\n            let fileName = args.assetItem.fileName;\n            /*\n             * get the assets directory path\n             * e.g.\n             * /wise/curriculum/3/\n             */\n            let assetsDirectoryPath =\n                this.ConfigService.getProjectAssetsDirectoryPath();\n            let fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n            if (args.target == 'rubric') {\n              // the target is the summernote rubric element\n              let summernoteId = 'summernoteRubric_' + this.nodeId;\n\n              if (this.UtilService.isImage(fileName)) {\n                /*\n                 * move the cursor back to its position when the asset chooser\n                 * popup was clicked\n                 */\n                $('#' + summernoteId).summernote('editor.restoreRange');\n                $('#' + summernoteId).summernote('editor.focus');\n\n                // add the image html\n                $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n              } else if (this.UtilService.isVideo(fileName)) {\n                /*\n                 * move the cursor back to its position when the asset chooser\n                 * popup was clicked\n                 */\n                $('#' + summernoteId).summernote('editor.restoreRange');\n                $('#' + summernoteId).summernote('editor.focus');\n\n                // insert the video element\n                let videoElement = document.createElement('video');\n                videoElement.controls = 'true';\n                videoElement.innerHTML =\n                    '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                $('#' + summernoteId).summernote('insertNode', videoElement);\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    this.$scope.$on('componentShowSubmitButtonValueChanged', (event, args) => {\n      let showSubmitButton = args.showSubmitButton;\n      if (showSubmitButton) {\n        /*\n         * a component is showing their submit button so we will hide\n         * the step save button and submit buttons\n         */\n        this.node.showSaveButton = false;\n        this.node.showSubmitButton = false;\n\n        // turn on the save buttons for all components in this step\n        this.ProjectService.turnOnSaveButtonInComponents(this.node.id);\n      } else {\n        /*\n         * a component is hiding their submit button so we may need\n         * to show the step save button\n         */\n        if (this.ProjectService.doesAnyComponentShowSubmitButton(this.node.id)) {\n          /*\n           * there is at least one component in the step that is showing\n           * their submit button so we will show the save button on\n           * all the components\n           */\n\n          // turn on the save buttons for all components in this step\n          this.ProjectService.turnOnSaveButtonInComponents(this.node.id);\n        } else {\n          /*\n           * no components in this step show their submit button so we\n           * will show the step save button\n           */\n          this.node.showSaveButton = true;\n          this.node.showSubmitButton = false;\n\n          // turn off the save buttons for all the components\n          this.ProjectService.turnOffSaveButtonInComponents(this.node.id);\n        }\n      }\n\n      // save changes\n      this.authoringViewNodeChanged();\n    });\n\n    if (this.$state.current.name == 'root.project.nodeConstraints') {\n      this.$timeout(() => {\n        this.nodeAuthoringViewButtonClicked('advanced');\n        this.$timeout(() => {\n          this.nodeAuthoringViewButtonClicked('editConstraints');\n        });\n      });\n    }\n\n    if (this.$state.current.name == 'root.project.nodeEditPaths') {\n      this.$timeout(() => {\n        this.nodeAuthoringViewButtonClicked('advanced');\n        this.$timeout(() => {\n          this.nodeAuthoringViewButtonClicked('editTransitions');\n        });\n      });\n    }\n\n    this.scrollToTopOfPage();\n\n    let data = {\n      \"title\": this.ProjectService.getNodePositionAndTitleByNodeId(this.nodeId)\n    };\n\n    if (this.ProjectService.isGroupNode(this.nodeId)) {\n      this.saveEvent('activityViewOpened', 'Navigation', data);\n    } else {\n      this.saveEvent('stepViewOpened', 'Navigation', data);\n    }\n  }\n\n  /**\n   * Populate the branch authoring\n   * TODO refactor too much nesting\n   */\n  populateBranchAuthoring() {\n    if (this.node.transitionLogic != null) {\n      // clear the create branch branches so we can populate them again\n      this.createBranchBranches = [];\n\n      // get the number of branches\n      if (this.node.transitionLogic.transitions != null) {\n        this.createBranchNumberOfBranches = this.node.transitionLogic.transitions.length;\n      } else {\n        this.createBranchNumberOfBranches = 0;\n      }\n\n      for (let t = 0; t < this.node.transitionLogic.transitions.length; t++) {\n        let transition = this.node.transitionLogic.transitions[t];\n\n        if (transition != null) {\n\n          // create a branch object to hold all the related information for that branch\n          let branch = {};\n\n          // set the branch number for display purposes\n          branch.number = t + 1;\n\n          /*\n           * set the mapping of all the ids to order for use when choosing which items are\n           * in the branch path\n           */\n          branch.items = this.UtilService.makeCopyOfJSONObject(this.ProjectService.idToOrder);\n\n          // an array that will hold all the checked items in the branch path\n          branch.checkedItemsInBranchPath = [];\n\n          // set the transition into the branch so we can access it easily later\n          branch.transition = transition;\n\n          // add the branch to the array of branches\n          this.createBranchBranches.push(branch);\n\n          // get the transition criteria\n          let criteria = transition.criteria;\n\n          if (criteria != null) {\n            for (let criterion of criteria) {\n              if (criterion != null) {\n                let name = criterion.name;\n                let params = criterion.params;\n\n                if (params != null) {\n                  // get the node id and component id params if any\n                  this.createBranchNodeId = params.nodeId;\n                  this.createBranchComponentId = params.componentId;\n                }\n\n                if (name == 'score') {\n                  // this is a score criteria\n\n                  // set the branch criterion to score\n                  this.createBranchCriterion = 'score';\n\n                  if (params != null && params.scores != null) {\n                    // set the scores into the branch object\n                    branch.scores = params.scores;\n                  }\n                } else if (name == 'choiceChosen') {\n                  // this is a choice chosen criteria\n\n                  // set the branch criterion to choice chosen\n                  this.createBranchCriterion = 'choiceChosen';\n\n                  if (params != null && params.choiceIds != null && params.choiceIds.length > 0) {\n                    // set the choice id into the branch object\n                    branch.choiceId = params.choiceIds[0];\n                  }\n\n                  // get the choices from the component\n                  let choices = this.ProjectService.getChoicesByNodeIdAndComponentId(this.createBranchNodeId, this.createBranchComponentId);\n\n                  if (choices != null) {\n                    // set the choices into the branch object\n                    branch.choices = this.UtilService.makeCopyOfJSONObject(choices);\n                  }\n                }\n              }\n            }\n          }\n\n          // get the node ids in the branch path\n          let nodeIdsInBranch = this.ProjectService\n              .getNodeIdsInBranch(this.nodeId, transition.to);\n          for (let nodeId of nodeIdsInBranch) {\n            let item = branch.items[nodeId];\n            if (item != null) {\n              // make the item checked\n              item.checked = true;\n\n              // add the item to the array of checked items in this branch path\n              branch.checkedItemsInBranchPath.push(item);\n            }\n          }\n\n          // set the node ids in branch array into the branch object\n          branch.nodeIdsInBranch = nodeIdsInBranch;\n\n          if (nodeIdsInBranch.length > 0) {\n            // get the last node id in the branch path\n            let lastNodeIdInBranch = nodeIdsInBranch[nodeIdsInBranch.length - 1];\n\n            if (lastNodeIdInBranch != null) {\n              let transitionsFromLastNode = this.ProjectService\n                  .getTransitionsByFromNodeId(lastNodeIdInBranch);\n              if (transitionsFromLastNode != null &&\n                  transitionsFromLastNode.length > 0) {\n                let transition = transitionsFromLastNode[0];\n                if (transition != null) {\n                  this.createBranchMergePointNodeId = transition.to;\n                }\n              }\n            }\n          }\n        }\n      }\n\n      if (this.createBranchCriterion == null) {\n        /*\n         * we have not been able to determine the branch criterion yet\n         * so we will look at the howToChooseAmongAvailablePaths field\n         */\n        if (this.node.transitionLogic.howToChooseAmongAvailablePaths == 'workgroupId') {\n          // set the branch criterion to workgroup id\n          this.createBranchCriterion = 'workgroupId';\n        } else if (this.node.transitionLogic.howToChooseAmongAvailablePaths == 'random') {\n          // set the branch criterion to random\n          this.createBranchCriterion = 'random';\n        }\n      }\n    }\n  }\n\n  /**\n   * Launch VLE with this current step as the initial step\n   */\n  previewStepInNewWindow() {\n    let data = { \"constraints\": true };\n    this.saveEvent('stepPreviewed', 'Navigation', data);\n\n    let previewProjectURL = this.ConfigService.getConfigParam('previewProjectURL');\n    let previewStepURL  = previewProjectURL + '#/vle/' + this.nodeId;\n    window.open(previewStepURL);\n  };\n\n  /**\n   * Launch VLE with this current step as the initial step without constraints\n   */\n  previewStepWithoutConstraintsInNewWindow() {\n    let data = { \"constraints\": false };\n    this.saveEvent('stepPreviewed', 'Navigation', data);\n\n    let previewProjectURL = this.ConfigService.getConfigParam('previewProjectURL');\n    let previewStepURL  = previewProjectURL + '?constraints=false' + '#/vle/' + this.nodeId;\n    window.open(previewStepURL);\n  };\n\n  /**\n   * Close the node authoring view\n   */\n  close() {\n    this.$scope.$broadcast('exitNode', {nodeToExit: this.node});\n    this.TeacherDataService.setCurrentNode(null);\n    this.$state.go('root.project', {projectId: this.projectId});\n    this.scrollToTopOfPage();\n  };\n\n  /**\n   * Display an error saving during advanced authoring, most-likely due to malformed JSON\n   */\n  showSaveErrorAdvancedAuthoring() {\n    alert(this.$translate('saveErrorAdvancedAuthoring'));\n  };\n\n  /**\n   * The author has clicked the cancel button which will revert all\n   * the recent changes since they opened the node.\n   */\n  cancel() {\n    // check if the user has made any changes\n    if (!angular.equals(this.node, this.originalNodeCopy)) {\n      // the user has made changes\n      if (confirm(this.$translate('confirmUndo'))) {\n        // revert the node back to the previous version\n        this.ProjectService.replaceNode(this.nodeId, this.originalNodeCopy);\n        this.ProjectService.saveProject();\n        this.close();\n      }\n    } else {\n      // the user has not made any changes, so close the node authoring view\n      this.close();\n    }\n  }\n\n  /**\n   * Add a new transition for this node.\n   */\n  addNewTransition() {\n    if (this.node.transitionLogic.transitions == null) {\n      this.node.transitionLogic.transitions = [];\n    }\n    let nodeTransitions = this.node.transitionLogic.transitions;\n    if (nodeTransitions.length > 0) {\n      // If this node already has transitions, copy the last one.\n      let lastNodeTransition = nodeTransitions[nodeTransitions.length - 1];\n      let newTransition = {\n        \"to\": lastNodeTransition.to\n      };\n      nodeTransitions.push(newTransition);\n    } else {\n      // Otherwise set the new transition to the current nodeId\n      let newTransition = {\n        \"to\": this.nodeId\n      };\n      nodeTransitions.push(newTransition);\n    }\n\n    if (nodeTransitions.length > 1) {\n      /*\n       * there is more than one transition so we will set default values\n       * for the transition logic parameters if they haven't already been\n       * set\n       */\n      if (this.node.transitionLogic.howToChooseAmongAvailablePaths == null) {\n        this.node.transitionLogic.howToChooseAmongAvailablePaths = 'workgroupId';\n      }\n\n      if (this.node.transitionLogic.whenToChoosePath == null) {\n        this.node.transitionLogic.whenToChoosePath = 'enterNode';\n      }\n\n      if (this.node.transitionLogic.canChangePath == null) {\n        this.node.transitionLogic.canChangePath = false;\n      }\n\n      if (this.node.transitionLogic.maxPathsVisitable == null) {\n        this.node.transitionLogic.maxPathsVisitable = 1;\n      }\n    }\n    // save changes\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The transition to node id has changed so need to recalculate the step\n   * numbers\n   */\n  authoringViewTransitionToNodeIdChanged() {\n    /*\n     * update the node numbers now that a step has been added to a branch path\n     * e.g. if this is a branching step that is called\n     * 1.5 B View the Potential Energy\n     * then the node number is 1.5 B\n    */\n    this.ProjectService.calculateNodeNumbers();\n\n    // save changes\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * Add a new transition criteria for the specified transition.\n   */\n  addNewTransitionCriteria(transition) {\n    let nodeTransitions = this.node.transitionLogic.transitions;\n    for (let nodeTransition of nodeTransitions) {\n      if (nodeTransition == transition) {\n        if (nodeTransition.criteria == null) {\n          nodeTransition.criteria = [];\n        }\n        let newTransitionCriteria = {\n          \"name\":\"\",\n          \"params\": {\n            \"nodeId\": \"\",\n            \"componentId\": \"\"\n          }\n        };\n        nodeTransition.criteria.push(newTransitionCriteria);\n      }\n    }\n    // save changes\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The transition criteria node id changed so we will update the params\n   * accordingly.\n   * @param transitionCriteria the transition criteria object that changed\n   */\n  transitionCriteriaNodeIdChanged(transitionCriteria) {\n    if (transitionCriteria!= null && transitionCriteria.params != null) {\n      // remember the node id\n      let nodeId = transitionCriteria.params.nodeId;\n\n      // clear the params\n      transitionCriteria.params = {};\n\n      if (nodeId != null) {\n        // set the node id back into the params\n        transitionCriteria.params.nodeId = nodeId;\n      }\n    }\n\n    // save the node\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The transition criteria component id changed so we will update the params\n   * accordingly.\n   * @param transitionCriteria the transition criteria object that changed\n   */\n  transitionCriteriaComponentIdChanged(transitionCriteria) {\n    if (transitionCriteria!= null && transitionCriteria.params != null) {\n      // remember the node id and component id\n      let nodeId = transitionCriteria.params.nodeId;\n      let componentId = transitionCriteria.params.componentId;\n\n      // clear the params\n      transitionCriteria.params = {};\n\n      if (nodeId != null) {\n        // set the node id back into the params\n        transitionCriteria.params.nodeId = nodeId;\n      }\n\n      if (componentId != null) {\n        // set the component id back into the params\n        transitionCriteria.params.componentId = componentId;\n      }\n    }\n\n    // save the node\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * Deletes the specified transition from this node\n   * @param transition the transition to delete\n   */\n  deleteTransition(transition) {\n    let stepTitle = '';\n    if (transition != null) {\n      stepTitle = this.ProjectService.getNodePositionAndTitleByNodeId(transition.to);\n    }\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisPath', { stepTitle: stepTitle }));\n    if (answer) {\n      let nodeTransitions = this.node.transitionLogic.transitions;\n      let index = nodeTransitions.indexOf(transition);\n      if (index > -1) {\n        nodeTransitions.splice(index, 1);\n      }\n      if (nodeTransitions.length <= 1) {\n        /*\n         * there is zero or one transition so we will clear the parameters\n         * below since they only apply when there are multiple transitions\n         */\n        this.node.transitionLogic.howToChooseAmongAvailablePaths = null;\n        this.node.transitionLogic.whenToChoosePath = null;\n        this.node.transitionLogic.canChangePath = null;\n        this.node.transitionLogic.maxPathsVisitable = null;\n      }\n      // save changes\n      this.authoringViewNodeChanged();\n    }\n  }\n\n  /**\n   * Save transitions for this node\n   */\n  saveTransitions() {\n    this.ProjectService.saveProject();\n    this.showEditTransitions = false;\n  }\n\n  /**\n   * The add component button was clicked\n   */\n  addComponentButtonClicked() {\n    // select the first component type by default\n    this.selectedComponent = this.componentTypes[0].componentType;\n\n    // show the add component UI elements\n    this.nodeAuthoringViewButtonClicked('addComponent');\n\n    // turn on add component mode\n    this.turnOnAddComponentMode();\n\n    // turn on the move component mode\n    this.turnOffMoveComponentMode();\n\n    // turn on the insert component mode\n    this.turnOnInsertComponentMode();\n\n    // hide the component authoring\n    this.hideComponentAuthoring();\n  }\n\n  /**\n   * Delete the component from this node\n   * @param componentId the component id\n   */\n  deleteComponent(componentId) {\n    if (confirm(this.$translate('confirmDeleteComponent'))) {\n      // delete the component from the node\n      this.ProjectService.deleteComponent(this.nodeId, componentId);\n\n      // check if we need to show the node save or node submit buttons\n      this.checkIfNeedToShowNodeSaveOrNodeSubmitButtons();\n      this.ProjectService.saveProject();\n    }\n  }\n\n  /**\n   * Hide the save button in all the components\n   * TODO refactor too much nesting\n   */\n  hideAllComponentSaveButtons() {\n    let components = this.components;\n    if (components != null) {\n      for (let component of components) {\n        if (component != null) {\n          let componentType = component.type;\n\n          // get the service for the component type\n          let service = this.$injector.get(componentType + 'Service');\n          if (service != null) {\n            if (service.componentUsesSaveButton()) {\n              /*\n               * this component uses a save button so we will hide\n               * it\n               */\n              component.showSaveButton = false;\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * The node has changed in the authoring view\n   * @param parseProject whether to parse the whole project to recalculate\n   * significant changes such as branch paths\n   */\n  authoringViewNodeChanged(parseProject) {\n    // put the previous version of the node on to the undo stack\n    this.undoStack.push(this.currentNodeCopy);\n\n    // update the current node copy\n    this.currentNodeCopy = this.UtilService.makeCopyOfJSONObject(this.node);\n\n    if (parseProject) {\n      // refresh the project\n      this.ProjectService.parseProject();\n      this.items = this.ProjectService.idToOrder;\n    }\n\n    return this.ProjectService.saveProject();\n  }\n\n  /**\n   * Undo the last change by reverting the node to the previous version\n   */\n  undo() {\n    if (this.undoStack.length === 0) {\n      // the undo stack is empty so there are no changes to undo\n      alert(this.$translate('noUndoAvailable'));\n    } else if (this.undoStack.length > 0) {\n      // the undo stack has elements\n\n      if (confirm(this.$translate('confirmUndoLastChange'))) {\n        // perform any node cleanup if necessary\n        this.$scope.$broadcast('exitNode', {nodeToExit: this.node});\n\n        // get the previous version of the node\n        let nodeCopy = this.undoStack.pop();\n\n        // revert the node back to the previous version\n        this.ProjectService.replaceNode(this.nodeId, nodeCopy);\n\n        this.node = this.ProjectService.getNodeById(this.nodeId);\n        this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);\n        this.ProjectService.saveProject();\n      }\n\n    }\n  }\n\n  /**\n   * Get the removal criteria params for a removal criteria name\n   * @param name a removal criteria name e.g. 'isCompleted', 'score', 'branchPathTaken'\n   * @return the params for the given removal criteria name\n   */\n  getRemovalCriteriaParamsByName(name) {\n    let params = [];\n    if (name != null) {\n      for (let singleRemovalCriteria of this.removalCriteria) {\n        if (singleRemovalCriteria != null) {\n          if (singleRemovalCriteria.value == name) {\n            /*\n             * we have found the removal criteria we are looking for\n             * so we will get its params\n             */\n            params = singleRemovalCriteria.params;\n            break;\n          }\n        }\n      }\n    }\n    return params;\n  }\n\n  /**\n   * Get the transition criteria params for a transition criteria name\n   * @param name a transition criteria name e.g.  'score', 'choiceChosen'\n   * @return the params for the given transition criteria name\n   */\n  getTransitionCriteriaParamsByName(name) {\n    let params = [];\n    if (name != null) {\n      for (let singleTransitionCriteria of this.transitionCriterias) {\n        if (singleTransitionCriteria != null &&\n            singleTransitionCriteria.value == name) {\n          /*\n           * we have found the removal criteria we are looking for\n           * so we will get its params\n           */\n          params = singleTransitionCriteria.params;\n          break;\n        }\n      }\n    }\n    return params;\n  }\n\n  /**\n   * Get the choices of a component\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @return the choices from the component\n   */\n  getChoicesByNodeIdAndComponentId(nodeId, componentId) {\n    return this.ProjectService.getChoicesByNodeIdAndComponentId(nodeId, componentId);\n  }\n\n  /**\n   * Get the choice type of a component\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @return the choice type e.g. 'radio' or 'checkbox'\n   */\n  getChoiceTypeByNodeIdAndComponentId(nodeId, componentId) {\n    let choiceType = null;\n    let component = this.ProjectService\n        .getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null && component.choiceType != null) {\n      choiceType = component.choiceType;\n    }\n    return choiceType;\n  }\n\n  /**\n   * Get the next available constraint id for a node\n   * @param nodeId the node id\n   * @return a constraint id that hasn't been used yet\n   */\n  getNewNodeConstraintId(nodeId) {\n    let newNodeConstraintId = null;\n    let usedConstraintIds = [];\n    let node = this.ProjectService.getNodeById(nodeId);\n    if (node != null && node.constraints != null) {\n      let nodeConstraints = node.constraints;\n      for (let constraint of nodeConstraints) {\n        if (constraint != null) {\n          let constraintId = constraint.id;\n          usedConstraintIds.push(constraintId);\n        }\n      }\n    }\n\n    // counter used for finding a constraint id that hasn't been used yet\n    let constraintCounter = 1;\n\n    // loop until we have found an unused constraint id\n    while (newNodeConstraintId == null) {\n      // create a potential constraint id\n      let potentialNewNodeConstraintId = nodeId + 'Constraint' + constraintCounter;\n\n      // check if the constraint id has been used already\n      if (usedConstraintIds.indexOf(potentialNewNodeConstraintId) == -1) {\n        // the constraint id has not been used so we can use it\n        newNodeConstraintId = potentialNewNodeConstraintId;\n      } else {\n        /*\n         * the constraint id has been used so we will increment the\n         * counter to try another contraint id\n         */\n        constraintCounter++;\n      }\n    }\n    return newNodeConstraintId;\n  }\n\n  /**\n   * Add a new constraint.\n   * @return The id of the DOM element associated with the constraint.\n   */\n  addConstraint() {\n    // get a new constraint id\n    let newNodeConstraintId = this.getNewNodeConstraintId(this.nodeId);\n\n    // create the constraint object\n    let constraint = {\n      \"id\": newNodeConstraintId,\n      \"action\": '',\n      \"targetId\": this.nodeId,\n      \"removalConditional\": 'any',\n      \"removalCriteria\": []\n    };\n\n    // create a removal criteria\n    let removalCriteria = {\n      \"name\": '',\n      \"params\": {}\n    };\n\n    // add the removal criteria to the constraint\n    constraint.removalCriteria.push(removalCriteria);\n\n    // create the constraints array if it does not exist\n    if (this.node.constraints == null) {\n      this.node.constraints = [];\n    }\n    this.node.constraints.push(constraint);\n    this.ProjectService.saveProject();\n\n    return newNodeConstraintId;\n  }\n\n  /**\n   * Add a new constraint and then scroll to the bottom of the screen because\n   * that's where the new constraint will appear.\n   */\n  addConstraintAndScrollToBottom() {\n    let newNodeConstraintId = this.addConstraint();\n    this.$timeout(() => {\n      this.$rootScope.$broadcast('scrollToBottom');\n      this.UtilService.temporarilyHighlightElement(newNodeConstraintId);\n    });\n  }\n\n  /**\n   * Delete a constraint\n   * @param constraintIndex delete the constraint at the index\n   */\n  deleteConstraint(constraintIndex) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConstraint'));\n    if (answer) {\n      if (constraintIndex != null) {\n        let node = this.ProjectService.getNodeById(this.nodeId);\n        if (node != null) {\n          let constraints = node.constraints;\n          if (constraints != null) {\n            // remove the constraint at the given index\n            constraints.splice(constraintIndex, 1);\n          }\n        }\n      }\n      this.ProjectService.saveProject();\n    }\n  }\n\n  /**\n   * Add a removal criteria\n   * @param constraint add the removal criteria to this constraint\n   */\n  addRemovalCriteria(constraint) {\n    if (constraint != null) {\n      // create the removal criteria\n      let removalCriteria = {\n        \"name\": '',\n        \"params\": {}\n      };\n      // add the removal criteria to the constraint\n      constraint.removalCriteria.push(removalCriteria);\n    }\n    this.ProjectService.saveProject();\n  }\n\n  /**\n   * Delete a removal criteria from a constraint\n   * @param constraint remove the removal criteria from this constraint\n   * @param removalCriteriaIndex the index of the removal criteria to remove\n   */\n  deleteRemovalCriteria(constraint, removalCriteriaIndex) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisRemovalCriteria'));\n    if (answer) {\n      if (constraint != null) {\n        // get all the removal criteria\n        let removalCriteria = constraint.removalCriteria;\n        if (removalCriteria != null) {\n          // remove the single removal criteria\n          removalCriteria.splice(removalCriteriaIndex, 1);\n        }\n      }\n      this.ProjectService.saveProject();\n    }\n  }\n\n  /**\n   * Delete a transition criteria from a transition\n   * @param constraint remove the removal criteria from this constraint\n   * @param removalCriteriaIndex the index of the removal criteria to remove\n   */\n  deleteTransitionCriteria(transition, transitionCriteriaIndex) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisRequirement'));\n    if (answer) {\n      if (transition != null) {\n        // get all the transition criteria\n        let transitionCriterias = transition.criteria;\n        if (transitionCriterias != null) {\n          // remove the single transition criteria\n          transitionCriterias.splice(transitionCriteriaIndex, 1);\n        }\n      }\n      this.ProjectService.saveProject();\n    }\n  }\n\n  /**\n   * A removal criteria name has changed so we will clear the params so\n   * that the params from the previous removal criteria name do not persist\n   * TODO refactor too many nesting\n   */\n  removalCriteriaNameChanged(criteria) {\n    if (criteria != null) {\n      // clear the params\n      criteria.params = {};\n\n      // get the params for the given criteria name\n      let params = this.getRemovalCriteriaParamsByName(criteria.name);\n      if (params != null) {\n        for (let paramObject of params) {\n          if (paramObject != null) {\n            let value = paramObject.value;\n\n            // initialize the param value\n            criteria.params[value] = '';\n\n            if (value == 'nodeId') {\n              // default the node id param to this node\n              criteria.params[value] = this.nodeId;\n            }\n          }\n        }\n      }\n    }\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * A removal criteria name has changed so we will clear the params so\n   * that the params from the previous removal criteria name do not persist.\n   * @param transitionCriteria the transition criteria object\n   */\n  transitionCriteriaNameChanged(transitionCriteria) {\n    if (transitionCriteria != null) {\n      let nodeId = null;\n      let componentId = null;\n\n      if (transitionCriteria.params != null) {\n        // remember the node id and component id\n        nodeId = transitionCriteria.params.nodeId;\n        componentId = transitionCriteria.params.componentId;\n      }\n\n      // clear the params\n      transitionCriteria.params = {};\n\n      if (nodeId != null) {\n        // set the node id back into the params\n        transitionCriteria.params.nodeId = nodeId;\n      }\n\n      if (componentId != null) {\n        // set the component id back into the params\n        transitionCriteria.params.componentId = componentId;\n      }\n    }\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * A button to author a specific view of the node was clicked\n   * @param view the view name\n   */\n  nodeAuthoringViewButtonClicked(view) {\n    if (view == 'addComponent') {\n      // toggle the add component view and hide all the other views\n      this.showCreateComponent = !this.showCreateComponent;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = true;\n      this.showComponents = true;\n      this.showJSON = false;\n    } else if (view == 'generalAdvanced') {\n      // save and parse the JSON if it has changed\n      this.saveAndParseJSON();\n      // toggle the edit transitions view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = !this.showGeneralAdvanced;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubricButton = false;\n      this.showCreateBranch = false;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n    } else if (view == 'editTransitions') {\n      // save and parse the JSON if it has changed\n      this.saveAndParseJSON();\n      // toggle the edit transitions view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = !this.showEditTransitions;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubricButton = false;\n      this.showCreateBranch = false;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n    } else if (view == 'editConstraints') {\n      // save and parse the JSON if it has changed\n      this.saveAndParseJSON();\n      // toggle the edit constraints view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = !this.showConstraints;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n    } else if (view == 'editButtons') {\n      // toggle the edit buttons view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = !this.showEditButtons;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showJSON = false;\n    } else if (view == 'editRubric') {\n      // toggle the edit buttons view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = !this.showRubric;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n    } else if (view == 'createBranch') {\n      // save and parse the JSON if it has changed\n      this.saveAndParseJSON();\n      // toggle the edit buttons view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = !this.showCreateBranch;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n    } else if (view == 'previousNode') {\n      // hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showJSON = false;\n      let prevNodeId = this.ProjectService.getPreviousNodeId(this.nodeId);\n      if (prevNodeId != null) {\n        // there is a previous node id so we will go to it\n        this.$state.go('root.project.node', {projectId: this.projectId, nodeId:prevNodeId});\n      } else {\n        // there is no previous node id so we will display a message\n        let thereIsNoPreviousStep = this.$translate('thereIsNoPreviousStep');\n        alert(thereIsNoPreviousStep);\n      }\n    } else if (view == 'nextNode') {\n      // hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showJSON = false;\n      let nextNodeId = this.ProjectService.getNextNodeId(this.nodeId);\n      if (nextNodeId != null) {\n        // there is a next node id so we will go to it\n        this.$state.go('root.project.node', {projectId: this.projectId, nodeId:nextNodeId});\n      } else {\n        // there is no next node id so we will display a message\n        let thereIsNoNextStep = this.$translate('thereIsNoNextStep');\n        alert(thereIsNoNextStep);\n      }\n    } else if (view == 'advanced') {\n      // toggle the advanced view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = !this.showAdvanced;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n    } else if (view == 'copy') {\n      // toggle the copy view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = true;\n      this.showComponents = true;\n      this.showJSON = false;\n    } else if (view == 'move') {\n      // toggle the move view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = true;\n      this.showComponents = true;\n      this.showJSON = false;\n    } else if (view == 'import') {\n      // toggle the import view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = !this.showImportView;\n      this.showStepButtons = false;\n      this.showComponents = true;\n      this.showJSON = false;\n    } else if (view == 'showJSON') {\n      // save and parse the JSON if it has changed\n      this.saveAndParseJSON();\n      // toggle the import view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.authoringNodeContentJSONString = angular.toJson(this.node, 4);\n      this.showJSON = !this.showJSON;\n    } else {\n      // hide all the views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = true;\n      this.showComponents = true;\n      this.showJSON = false;\n    }\n  }\n\n  /**\n   * The author has changed the number of branch paths\n   * TODO refactor long function\n   */\n  createBranchNumberOfBranchesChanged() {\n    if (this.createBranchNumberOfBranches == 0) {\n      // the author has set the number of branch paths to 0 which is not allowed\n      alert(this.$translate('errorYouCantHave0BranchPaths'));\n\n      // revert the number of branch paths value\n      this.createBranchNumberOfBranches = this.createBranchBranches.length;\n    } else if (this.createBranchNumberOfBranches < this.createBranchBranches.length) {\n      /*\n       * the author is reducing the number of branches so we want to\n       * confirm they want to do so\n       */\n      let answer = confirm(this.$translate('areYouSureYouWantToReduceTheNumberOfBranchesToX', {createBranchNumberOfBranches:this.createBranchNumberOfBranches}));\n\n      if (answer) {\n        if (this.createBranchNumberOfBranches == 1) {\n          /*\n           * the author has removed all the branch paths so we will\n           * remove the branch\n           */\n          this.removeBranch();\n        } else {\n          /*\n           * the author is reducing the number of branch paths but\n           * not removing all of them\n           */\n          for (let bp = 0; bp < this.createBranchBranches.length; bp++) {\n            if (bp >= this.createBranchNumberOfBranches) {\n              // this is a branch we want to remove\n              let branch = this.createBranchBranches[bp];\n              this.removeBranchPath(branch);\n\n              /*\n               * decrement the counter back one because we have\n               * just removed a branch path\n               */\n              bp--;\n            }\n          }\n        }\n      } else {\n        // they answered no so we will revert the number of branches value\n        this.createBranchNumberOfBranches = this.createBranchBranches.length;\n      }\n    } else if (this.createBranchNumberOfBranches > this.createBranchBranches.length) {\n      // the author is increasing the number of branches\n      if (this.createBranchCriterion == null) {\n        /*\n         * we will default the branching to be based on workgroup id\n         * since that is what our researchers use most often\n         */\n        this.createBranchCriterion = 'workgroupId';\n        this.createBranchCriterionChanged();\n      }\n\n      // loop for the number of branches and create new branches objects\n      for (let b = 0; b < this.createBranchNumberOfBranches; b++) {\n        if (b >= this.createBranchBranches.length) {\n          /*\n           * we do not have a branch object for this branch number so\n           * we will create it\n           */\n\n          // create the branch object\n          let branch = {};\n\n          // set the branch number\n          branch.number = b + 1;\n\n          /*\n           * set the mapping of all the ids to order for use when choosing which items are\n           * in the branch path\n           */\n          branch.items = this.UtilService.makeCopyOfJSONObject(this.ProjectService.idToOrder);\n\n          // add the branch to the array of branches\n          this.createBranchBranches.push(branch);\n\n          // create a transition to represent the branch\n          let transition = {};\n\n          if (this.createBranchCriterion == 'score') {\n            // the branch is based on score\n\n            // create a score criterion\n            let criterion = {\n              \"name\": this.createBranchCriterion,\n              \"params\": {\n                \"scores\": []\n              }\n            };\n\n            if (this.createBranchNodeId != null) {\n              // set the node for which to look for the score\n              criterion.params.nodeId = this.createBranchNodeId;\n            }\n\n            if (this.createBranchComponentId != null) {\n              // set the component for which to look for the score\n              criterion.params.componentId = this.createBranchComponentId;\n            }\n\n            transition.criteria = [criterion];\n          } else if (this.createBranchCriterion == 'choiceChosen') {\n            // the branch is based on choice chosen\n            let criterion = {};\n            criterion.name = this.createBranchCriterion;\n            criterion.params = {};\n            criterion.params.choiceIds = [];\n\n            if (this.createBranchNodeId != null) {\n              // set the node for which to look for the score\n              criterion.params.nodeId = this.createBranchNodeId;\n            }\n\n            if (this.createBranchComponentId != null) {\n              // set the component for which to look for the score\n              criterion.params.componentId = this.createBranchComponentId;\n            }\n\n            transition.criteria = [criterion];\n          } else if (this.createBranchCriterion == 'workgroupId') {\n            // workgroup id branching does not require a transition criterion\n          } else if (this.createBranchCriterion == 'random') {\n            // random branching does not require a transition criterion\n          }\n\n          // add the transition\n          this.node.transitionLogic.transitions.push(transition);\n\n          // save a reference to the transition in the branch\n          branch.transition = transition;\n        }\n      }\n    }\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The branch criterion has changed\n   */\n  createBranchCriterionChanged() {\n    if (this.createBranchCriterion != null) {\n      let nodeId = this.node.id;\n      if (this.createBranchCriterion == 'workgroupId') {\n        // the branch is based on workgroup id\n        this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', 'workgroupId');\n        this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', 'enterNode');\n        this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', false);\n        this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', 1);\n      } else if (this.createBranchCriterion == 'score') {\n        // the branch is based on score\n        this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', 'random');\n        this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', 'studentDataChanged');\n        this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', false);\n        this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', 1);\n      } else if (this.createBranchCriterion == 'choiceChosen') {\n        // the branch is based on choice chosen\n        this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', 'random');\n        this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', 'studentDataChanged');\n        this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', false);\n        this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', 1);\n      } else if (this.createBranchCriterion == 'random') {\n        // the branch is based on random assignment\n        this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', 'random');\n        this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', 'enterNode');\n        this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', false);\n        this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', 1);\n      }\n    }\n\n    /*\n     * update the transitions so that they have the necessary parameter\n     * fields for the given branch criterion\n     */\n    this.createBranchUpdateTransitions();\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The create branch node id has changed\n   */\n  createBranchNodeIdChanged() {\n    this.createBranchComponentId = null;\n    let selectedNode = this.ProjectService.getNodeById(this.createBranchNodeId);\n    if (selectedNode != null) {\n      let components = selectedNode.components;\n      if (components != null) {\n        if (components.length == 1) {\n          /*\n           * there is only one component in the node so we will\n           * automatically select it in the drop down\n           */\n          let component = components[0];\n          this.createBranchComponentId = component.id;\n        }\n      }\n    }\n\n    /*\n     * update the transitions so that they have the necessary parameter\n     * fields for the given branch criterion\n     */\n    this.createBranchUpdateTransitions();\n\n    // save the project\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The create branch component id has changed\n   */\n  createBranchComponentIdChanged() {\n\n    /*\n     * update the transitions so that they have the necessary parameter\n     * fields for the given branch criterion\n     */\n    this.createBranchUpdateTransitions();\n\n    // save the project\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * Update the transitions so that they have the necessary parameter\n   * fields for the given branch criterion\n   */\n  createBranchUpdateTransitions() {\n    for (let b = 0; b < this.createBranchBranches.length; b++) {\n      let branch = this.createBranchBranches[b];\n      if (branch != null) {\n        // get the transition corresponding to the branch\n        let transition = branch.transition;\n        if (transition != null) {\n          if (this.createBranchCriterion == 'choiceChosen') {\n            // we are branching based on choice chosen\n\n            // clear the criteria array\n            transition.criteria = [];\n\n            // create a new choice chosen criterion\n            let criterion = {\n              \"name\": 'choiceChosen',\n              \"params\": {\n                \"nodeId\": this.createBranchNodeId,\n                \"componentId\": this.createBranchComponentId,\n                \"choiceIds\": []\n              }\n            };\n\n            // add the criterion to the array of criteria\n            transition.criteria.push(criterion);\n\n            /*\n             * clear the choice id. we will set the choice id in\n             * the branch object when we call createBranchUpdateChoiceChosenIds()\n             */\n            branch.choiceId = null;\n\n            /*\n             * clear the scores since we don't need it in choice\n             * chosen branching\n             */\n            branch.scores = null;\n          } else if (this.createBranchCriterion == 'score') {\n            // we are branching based on score\n\n            // clear the criteria array\n            transition.criteria = [];\n\n            // create a new score criterion\n            let criterion = {\n              \"name\": 'score',\n              \"params\": {\n                \"nodeId\": this.createBranchNodeId,\n                \"componentId\": this.createBranchComponentId,\n                \"scores\": []\n              },\n            };\n\n            // re-use scores if available\n\n            // add the criterion to the array of criteria\n            transition.criteria.push(criterion);\n\n            /*\n             * clear the choice id since we don't need it in score\n             * branching\n             */\n            branch.choiceId = null;\n\n            // set the scores into the branch object\n            branch.scores = criterion.params.scores;\n          } else if (this.createBranchCriterion == 'workgroupId') {\n            // we are branching based on workgroup id\n\n            /*\n             * remove the criteria array since it is not used for\n             * branching based on workgroup id\n             */\n            delete transition['criteria'];\n\n            // clear the node id and component id\n            this.createBranchNodeId = null;\n            this.createBranchComponentId = null;\n\n            /*\n             * clear the choice id and scores fields since we don't\n             * need them in workgroup id branching\n             */\n            branch.choiceId = null;\n            branch.scores = null;\n          } else if (this.createBranchCriterion == 'random') {\n            // we are branching based on random assignment\n\n            /*\n             * remove the criteria array since it is not used for\n             * branching based on random assignment\n             */\n            delete transition['criteria'];\n\n            // clear the node id and component id\n            this.createBranchNodeId = null;\n            this.createBranchComponentId = null;\n\n            /*\n             * clear the choice id and scores fields since we don't\n             * need them in random branching\n             */\n            branch.choiceId = null;\n            branch.scores = null;\n          }\n        }\n      }\n    }\n\n    if (this.createBranchCriterion == 'choiceChosen') {\n      /*\n       * the branching is based on choice chosen so we will populate the\n       * choice ids\n       */\n      this.createBranchUpdateChoiceChosenIds();\n    }\n  }\n\n  /**\n   * Automatically populate the selected choices if the branch is based on\n   * choice chosen and the selected component is a multiple choice component\n   * TODO refactor too many nesting\n   */\n  createBranchUpdateChoiceChosenIds() {\n    let nodeId = this.createBranchNodeId;\n    let componentId = this.createBranchComponentId;\n    let component = this.ProjectService\n        .getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null) {\n      if (component.type == 'MultipleChoice') {\n        // populate the drop down with the choices\n        this.createBranchUpdateChoiceChosenIdsHelper(component);\n      }\n    }\n  }\n\n  /**\n   * We are creating a branch that is based on which choice the student chooses\n   * in a multiple choice component. We will populate the drop down with the\n   * choices.\n   * @param component we are branching based on the choice chosen in this\n   * component\n   */\n  createBranchUpdateChoiceChosenIdsHelper(component) {\n    let nodeId = this.createBranchNodeId;\n    let componentId = this.createBranchComponentId;\n\n    // get the choices from the component\n    let choices = component.choices;\n\n    if (choices != null) {\n\n      // loop through all the choices\n      for (let c = 0; c < choices.length; c++) {\n        let choice = choices[c];\n        if (choice != null) {\n\n          // get the fields of the choice\n          let id = choice.id;\n          let text = choice.text;\n          let feedback = choice.feedback;\n          let isCorrect = choice.isCorrect;\n\n          // get the branch that corresponds to the choice\n          let branch = this.createBranchBranches[c];\n\n          if (branch != null) {\n            // get the choice for this branch\n            branch.choiceId = id;\n\n            // make a copy of the choices from the component\n            branch.choices = this.UtilService.makeCopyOfJSONObject(choices);\n\n            // get the transition corresponding to the branch\n            let transition = branch.transition;\n\n            if (transition != null) {\n\n              /*\n               * get the first transition criterion. we will assume\n               * there is only one transition criterion\n               */\n              let criterion = transition.criteria[0];\n\n              if (criterion != null) {\n\n                // get the params\n                let params = criterion.params;\n\n                if (params != null) {\n\n                  // set the node id and component id\n                  params.nodeId = nodeId;\n                  params.componentId = componentId;\n\n                  if (this.createBranchCriterion == 'choiceChosen') {\n                    // set the choice id\n                    params.choiceIds = [];\n                    params.choiceIds.push(id);\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * A step was clicked in the create branch authoring view\n   * @param branch the branch path\n   * @param item the step that was clicked\n   * TODO refactor function too long\n   */\n  createBranchStepClicked(branch, item) {\n    // get all the steps in order\n    let orderedItems = this.$filter('orderBy')(this.$filter('toArray')(branch.items), 'order');\n\n    // an array that will hold the items that were checked\n    branch.checkedItemsInBranchPath = [];\n    let checkedItemsInBranchPath = branch.checkedItemsInBranchPath;\n\n    // an array that will hold the node ids that were checked\n    branch.nodeIdsInBranch = [];\n\n    // used to hold the previously checked node id\n    let previousCheckedNodeId = null;\n\n    // the node id after the node that was clicked\n    let nodeIdAfter = null;\n\n    /*\n     * loop through all the items in order and set the transitions so that\n     * the steps in a branch path transition to one after the other\n     */\n    for (var i = 0; i < orderedItems.length; i++) {\n      var orderedItem = orderedItems[i];\n      if (orderedItem != null && orderedItem.checked) {\n        if (previousCheckedNodeId != null) {\n          // make the previous node id point to the current item\n          let previousCheckedNode = this.ProjectService.getNodeById(previousCheckedNodeId);\n          if (previousCheckedNode != null) {\n            // get the transition logic\n            let transitionLogic = previousCheckedNode.transitionLogic;\n            if (transitionLogic != null) {\n              if (transitionLogic.transitions != null) {\n                // clear the transitions\n                transitionLogic.transitions = [];\n\n                // create a new transition object to the current item\n                let transition = {\n                  \"to\": orderedItem.$key\n                };\n                // add the transition\n                transitionLogic.transitions.push(transition);\n              }\n            }\n          }\n        }\n\n        // add the item to the checked items array\n        checkedItemsInBranchPath.push(orderedItem);\n\n        // add the node id to the array of node ids in the branch path\n        branch.nodeIdsInBranch.push(orderedItem.$key);\n\n        // remember the previously checked node id\n        previousCheckedNodeId = orderedItem.$key;\n      }\n\n      // get the previous ordered item (checked or unchecked)\n      let previousOrderedItem = orderedItems[i - 1];\n      if (previousOrderedItem != null) {\n        if (previousOrderedItem.$key == item.$key) {\n          /*\n           * the previous item was the node that was checked/unchecked\n           * so we will remember this item because it is the node\n           * that comes after the node that was checked/unchecked\n           */\n          nodeIdAfter = orderedItem.$key;\n        }\n      }\n    }\n\n    if (this.createBranchMergePointNodeId != null) {\n      /*\n       * the merge point is specified so we will make the last checked\n       * node in this branch path point to the merge point\n       */\n\n      /*\n       * this is the last node in the branch path so we will make it\n       * transition to the merge point\n       */\n      let node = this.ProjectService.getNodeById(previousCheckedNodeId);\n      if (node != null) {\n        let transitionLogic = node.transitionLogic;\n        if (transitionLogic != null) {\n          if (transitionLogic.transitions != null) {\n            // clear the transitions\n            transitionLogic.transitions = [];\n\n            // make a transition to the merge point\n            let transition = {};\n            transition.to = this.createBranchMergePointNodeId;\n\n            // add the transition\n            transitionLogic.transitions.push(transition);\n          }\n        }\n      }\n    }\n\n    // get the branch number\n    let branchNumber = branch.number;\n\n    // get the node id that was clicked\n    let nodeId = item.$key;\n\n    // get the transition that corresponds to the branch\n    let transition = this.node.transitionLogic.transitions[branchNumber - 1];\n\n    let firstNodeId = null;\n\n    /*\n     * update the branch point transition in case the first step in the\n     * branch path has changed\n     */\n    if (transition != null) {\n\n      if (checkedItemsInBranchPath.length == 0) {\n        // there are no steps in the path\n        transition.to = null;\n      } else {\n        // get the first step in the path\n        let firstCheckedItem = checkedItemsInBranchPath[0];\n\n        if (firstCheckedItem != null) {\n          // set the branch point transition to the first step in the path\n          firstNodeId = firstCheckedItem.$key;\n          transition.to = firstNodeId;\n        }\n      }\n    }\n\n    // get the node that was clicked\n    let node = this.ProjectService.getNodeById(nodeId);\n\n    if (node != null) {\n\n      // remove all branch path taken constraints from the node\n      this.ProjectService.removeBranchPathTakenNodeConstraints(nodeId);\n\n      if (item.checked) {\n        // the item was checked so we will add the branch path taken constraints to it\n\n        /*\n         * the branch path taken constraints will be from this node to\n         * the first node in the branch path\n         */\n        let fromNodeId = this.nodeId;\n        let toNodeId = firstNodeId;\n\n        // add the branch path taken constraints\n        this.ProjectService.addBranchPathTakenConstraints(nodeId, fromNodeId, toNodeId);\n      } else {\n        /*\n         * the item was unchecked so we will change its transition to\n         * point to the node that comes right after it\n         */\n        this.ProjectService.setTransition(nodeId, nodeIdAfter);\n      }\n    }\n\n    /*\n     * update the constraints of other steps in the branch path if necessary.\n     * loop through all theh checked items in the path\n     */\n    for (let item of checkedItemsInBranchPath) {\n      let itemNodeId = item.$key;\n\n      // remove all branch path taken constraints from the node\n      this.ProjectService.removeBranchPathTakenNodeConstraints(itemNodeId);\n\n      /*\n       * the branch path taken constraints will be from this node to\n       * the first node in the branch path\n       */\n      let fromNodeId = this.nodeId;\n      let toNodeId = firstNodeId;\n\n      // add the branch path taken constraints\n      this.ProjectService.addBranchPathTakenConstraints(itemNodeId, fromNodeId, toNodeId);\n    }\n\n    /*\n     * update the node numbers now that a step has been added to a branch path\n     * e.g. if this is a branching step that is called\n     * 1.5 B View the Potential Energy\n     * then the node number is 1.5 B\n     */\n    this.ProjectService.calculateNodeNumbers();\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The score for a path has changed in the branch authoring\n   * @param branch the branch for which the score has changed\n   * TODO refactor too many nesting\n   */\n  createBranchScoreChanged(branch) {\n    if (branch != null) {\n      let transition = branch.transition;\n      if (transition != null) {\n        let scores = branch.scores;\n        if (scores != null) {\n          let criteria = transition.criteria;\n          if (criteria != null) {\n            // get the first criteria. we will assume there is only one criteria\n            let criterion = criteria[0];\n            if (criterion != null) {\n              // get the params of the criterion\n              let params = criterion.params;\n              if (params != null) {\n                // update the scores into the params\n                params.scores = scores;\n              }\n            }\n          }\n        }\n      }\n    }\n\n    // save the project\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The merge point has changed in the branch authoring\n   * TODO refactor too many nesting\n   */\n  createBranchMergePointNodeIdChanged() {\n    // get the merge point node id\n    let createBranchMergePointNodeId = this.createBranchMergePointNodeId;\n    let branches = this.createBranchBranches;\n    for (let branch of branches) {\n      if (branch != null) {\n        // get the node ids in the branch path\n        let nodeIdsInBranch = branch.nodeIdsInBranch;\n        if (nodeIdsInBranch != null && nodeIdsInBranch.length > 0) {\n          // get the last node id in the branch path\n          let lastNodeIdInBranchPath = nodeIdsInBranch[nodeIdsInBranch.length - 1];\n          if (lastNodeIdInBranchPath != null) {\n            // get the last node in the branch path\n            let lastNodeInBranchPath =\n                this.ProjectService.getNodeById(lastNodeIdInBranchPath);\n            if (lastNodeInBranchPath != null) {\n              // get the transition logic of the last node\n              let transitionLogic = lastNodeInBranchPath.transitionLogic;\n              if (transitionLogic != null) {\n                if (transitionLogic.transitions != null) {\n                  // clear the transitions\n                  transitionLogic.transitions = [];\n\n                  // make a new transition to the merge point\n                  let transition = {\n                    \"to\": createBranchMergePointNodeId\n                  };\n                  // add the transition\n                  transitionLogic.transitions.push(transition);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    /*\n     * calculate the node numbers\n     * e.g. if the step is called\n     * 1.5 View the Potential Energy\n     * then the node number is 1.5\n     */\n    this.ProjectService.calculateNodeNumbers();\n\n    // save the project\n    let parseProject = true;\n    this.authoringViewNodeChanged(parseProject);\n  }\n\n  /**\n   * Remove the branch after confirming with the user\n   */\n  removeBranchButtonClicked() {\n    if (confirm(this.$translate('areYouSureYouWantToRemoveTheBranch'))) {\n      this.removeBranch();\n    }\n  }\n\n  /**\n   * Remove the branch from the step by removing all the branch paths\n   */\n  removeBranch() {\n    for (let bp = 0; bp < this.createBranchBranches.length; bp++) {\n      // remove a branch path\n      let branchPath = this.createBranchBranches[bp];\n      this.removeBranchPath(branchPath);\n\n      /*\n       * shift the counter back one because we have just removed a branch\n       * path\n       */\n      bp--;\n    }\n\n    // get the node id of this node (which is the branch point)\n    let nodeId = this.node.id;\n\n    // get the node id that comes after this node\n    let nodeIdAfter = this.ProjectService.getNodeIdAfter(nodeId);\n\n    /*\n     * update the transition of this step to point to the next step\n     * in the project. this may be different than the next step\n     * if it was still the branch point.\n     */\n    this.ProjectService.setTransition(nodeId, nodeIdAfter);\n\n    // clear the transition logic fields\n    this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', null);\n    this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', null);\n    this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', null);\n    this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', null);\n\n    // clear the branch authoring fields\n    this.createBranchNumberOfBranches = 1;\n    this.createBranchCriterion = null;\n    this.createBranchNodeId = null;\n    this.createBranchComponentId = null;\n    this.createBranchMergePointNodeId = null;\n\n    /*\n     * branch paths are determined by the transitions. since there is now\n     * just one transition, we will create a single branch object to\n     * represent it.\n     */\n\n    // create a branch object to hold all the related information for that branch\n    let branch = {};\n\n    // set the branch number for display purposes\n    branch.number = 1;\n\n    /*\n     * set the mapping of all the ids to order for use when choosing which items are\n     * in the branch path\n     */\n    branch.items = this.UtilService.makeCopyOfJSONObject(this.ProjectService.idToOrder);\n\n    // an array that will hold all the checked items in the branch path\n    branch.checkedItemsInBranchPath = [];\n\n    let transition = null;\n\n    // get the transition from the node\n    let transitions = this.ProjectService.getTransitionsByFromNodeId(nodeId);\n\n    if (transitions != null && transitions.length > 0) {\n      transition = transitions[0];\n    }\n\n    // set the transition into the branch so we can access it easily later\n    branch.transition = transition;\n\n    // add the branch to the array of branches\n    this.createBranchBranches.push(branch);\n\n    /*\n     * calculate the node numbers\n     * e.g. if the step is called\n     * 1.5 View the Potential Energy\n     * then the node number is 1.5\n     */\n    this.ProjectService.calculateNodeNumbers();\n\n    // save the project\n    let parseProject = true;\n    this.authoringViewNodeChanged(parseProject);\n  }\n\n  /**\n   * Remove a branch path by removing all the branch path taken constraints\n   * from the steps in the branch path, resetting the transitions in the\n   * steps in the branch path, and removing the transition corresponding to\n   * the branch path in this branch point node.\n   * @param branch the branch object\n   */\n  removeBranchPath(branch) {\n    if (branch != null) {\n      // get the checked items in the branch path\n      let checkedItemsInBranchPath = branch.checkedItemsInBranchPath;\n      if (checkedItemsInBranchPath != null) {\n        for (let checkedItem of checkedItemsInBranchPath) {\n          if (checkedItem != null) {\n            // get the node id of the checked item\n            let nodeId = checkedItem.$key;\n\n            // remove the branchPathTaken constraints from the step\n            this.ProjectService.removeBranchPathTakenNodeConstraints(nodeId);\n\n            /*\n             * update the transition of the step to point to the next step\n             * in the project. this may be different than the next step\n             * if it was still in the branch path.\n             */\n            let nodeIdAfter = this.ProjectService.getNodeIdAfter(nodeId);\n            this.ProjectService.setTransition(nodeId, nodeIdAfter);\n          }\n        }\n      }\n      // get the index of the branch path\n      let branchPathIndex = this.createBranchBranches.indexOf(branch);\n\n      // remove the branch path\n      this.createBranchBranches.splice(branchPathIndex, 1);\n\n      // remove the transition that corresponds to the branch path\n      this.node.transitionLogic.transitions.splice(branchPathIndex, 1);\n    }\n  }\n\n  /**\n   * The author has changed the step rubric\n   */\n  summernoteRubricHTMLChanged() {\n    // get the summernote rubric html\n    let html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the step rubric\n    this.node.rubric = html;\n\n    // save the project\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * Show the component authoring views\n   */\n  showComponentAuthoring() {\n    this.showComponentAuthoringViews = true;\n  }\n\n  /**\n   * Hide the component authoring views so that the auther only sees\n   * the component numbers and component names\n   */\n  hideComponentAuthoring() {\n    this.showComponentAuthoringViews = false;\n  }\n\n  /**\n   * Show the insert buttons. This is used when choosing where to insert a\n   * component.\n   */\n  turnOnInsertComponentMode() {\n    this.insertComponentMode = true;\n  }\n\n  /**\n   * Hide the insert buttons.\n   */\n  turnOffInsertComponentMode() {\n    this.insertComponentMode = false;\n  }\n\n  /**\n   * Turn on the add component mode\n   */\n  turnOnAddComponentMode() {\n    this.addComponentMode = true;\n  }\n\n  /**\n   * Turn off the add component mode\n   */\n  turnOffAddComponentMode() {\n    this.addComponentMode = false;\n  }\n\n  /**\n   * Turn on the move component mode\n   */\n  turnOnMoveComponentMode() {\n    this.moveComponentMode = true;\n  }\n\n  /**\n   * Turn off the move component mode\n   */\n  turnOffMoveComponentMode() {\n    this.moveComponentMode = false;\n  }\n\n  /**\n   * Turn on the copy component mode\n   */\n  turnOnCopyComponentMode() {\n    this.copyComponentMode = true;\n  }\n\n  /**\n   * Turn off the copy component mode\n   */\n  turnOffCopyComponentMode() {\n    this.copyComponentMode = false;\n  }\n\n  /**\n   * Turn on the import component mode\n   */\n  turnOnImportComponentMode() {\n    this.importComponentMode = true;\n  }\n\n  /**\n   * Turn off the import component mode\n   */\n  turnOffImportComponentMode() {\n    this.importComponentMode = false;\n  }\n\n  /**\n   * Get the components that have been selected\n   * @return an array of component ids that have been selected\n   */\n  getSelectedComponentIds() {\n    let selectedComponents = [];\n    if (this.components != null) {\n      for (let component of this.components) {\n        if (component != null && component.id != null) {\n          // see if the component is checked\n          let checked = this.componentsToChecked[component.id];\n          if (checked) {\n            selectedComponents.push(component.id);\n          }\n        }\n      }\n    }\n    return selectedComponents;\n  }\n\n  /**\n   * Uncheck all the components\n   */\n  clearComponentsToChecked() {\n    /*\n     * clear the components to checked mappings so that all the component\n     * checkboxes are no longer checked\n     */\n    this.componentsToChecked = {};\n  }\n\n  /**\n   * Get the component numbers and component types that have been selected\n   * @return an array of strings\n   * example\n   * [\n   *   \"1. OpenResponse\",\n   *   \"3. MultipleChoice\"\n   * ]\n   */\n  getSelectedComponentNumbersAndTypes(componentIds) {\n    let selectedComponents = [];\n    if (this.components != null) {\n      for (let c = 0; c < this.components.length; c++) {\n        let component = this.components[c];\n        if (component != null && component.id != null) {\n          // see if the component is checked\n          let checked = this.componentsToChecked[component.id];\n          if (checked) {\n            // get the component number and type example \"1. OpenResponse\"\n            let componentNumberAndType = (c + 1) + '. ' + component.type;\n\n            // the component is checked\n            selectedComponents.push(componentNumberAndType);\n          }\n        }\n      }\n    }\n    return selectedComponents;\n  }\n\n  /**\n   * The import button was clicked to turn on the import view\n   */\n  importButtonClicked() {\n    // clear all the import project values\n    this.importProjectIdToOrder = {};\n    this.importProjectItems = [];\n    this.importMyProjectId = null;\n    this.importLibraryProjectId = null;\n    this.importProjectId = null;\n    this.importProject = null;\n\n    // hide the other views\n    this.nodeAuthoringViewButtonClicked('import');\n\n    if (this.showImportView) {\n      // turn on import mode\n      this.turnOnImportComponentMode();\n\n      if (this.myProjectsList == null) {\n        // populate the authorable projects drop down\n        this.myProjectsList = this.ConfigService.getAuthorableProjects();\n      }\n\n      if (this.libraryProjectsList == null) {\n        // populate the library projects drop down\n        this.ConfigService.getLibraryProjects().then((libraryProjectsList) => {\n          this.libraryProjectsList = libraryProjectsList;\n        });\n      }\n    }\n  }\n\n  /**\n   * The move component button was clicked\n   */\n  moveButtonClicked() {\n    if (this.getSelectedComponentIds().length == 0) {\n      alert(this.$translate('pleaseSelectAComponentToMoveAndThenClickTheMoveButtonAgain'));\n    } else {\n      // hide the other views\n      this.nodeAuthoringViewButtonClicked('move');\n\n      // turn off add component mode\n      this.turnOffAddComponentMode();\n\n      // turn on the move component mode\n      this.turnOnMoveComponentMode();\n\n      // turn on the insert component mode\n      this.turnOnInsertComponentMode()\n\n      // hide the component authoring\n      this.hideComponentAuthoring();\n    }\n  }\n\n  /**\n   * The copy component button was clicked\n   */\n  copyButtonClicked() {\n    if (this.getSelectedComponentIds().length == 0) {\n      alert(this.$translate('pleaseSelectAComponentToCopyAndThenClickTheCopyButtonAgain'));\n    } else {\n      // hide the other views\n      this.nodeAuthoringViewButtonClicked('copy');\n\n      // turn on the move component mode\n      this.turnOnCopyComponentMode();\n\n      // turn on the insert component mode\n      this.turnOnInsertComponentMode();\n\n      // hide the component authoring views\n      this.hideComponentAuthoring();\n    }\n  }\n\n  /**\n   * The delete button was clicked\n   * TODO refactor too many nesting\n   */\n  deleteButtonClicked() {\n    if (this.getSelectedComponentIds().length == 0) {\n      alert(this.$translate('pleaseSelectAComponentToDeleteAndThenClickTheDeleteButtonAgain'));\n    } else {\n      this.scrollToTopOfPage();\n\n      /*\n       * hide all the component authoring so that the author only sees the\n       * component numbers and component types\n       */\n      this.hideComponentAuthoring();\n\n      /*\n       * Use a timeout to allow the effects of hideComponentAuthoring() to\n       * take effect. If we don't use a timeout, the user won't see any change\n       * in the UI.\n       */\n      this.$timeout(() => {\n        let confirmMessage = '';\n\n        // get the selected component numbers and types\n        let selectedComponentNumbersAndTypes = this.getSelectedComponentNumbersAndTypes();\n\n        if (selectedComponentNumbersAndTypes.length == 1) {\n          // there is one selected component\n          confirmMessage = this.$translate('areYouSureYouWantToDeleteThisComponent');\n        } else if (selectedComponentNumbersAndTypes.length > 1) {\n          // there are multiple selected components\n          confirmMessage = this.$translate('areYouSureYouWantToDeleteTheseComponents');\n        }\n\n        // loop through all the selected components\n        for (let c = 0; c < selectedComponentNumbersAndTypes.length; c++) {\n\n          // get a component number and type\n          let selectedComponentNumberAndType = selectedComponentNumbersAndTypes[c];\n\n          // show the component number and type in the message\n          confirmMessage += '\\n' + selectedComponentNumberAndType;\n        }\n\n        // ask the user if they are sure they want to delete\n        if (confirm(confirmMessage)) {\n          let selectedComponents = this.getSelectedComponentIds();\n\n          // data saved in the component deleted event\n          let data = {\n            \"componentsDeleted\": this.getComponentObjectsForEventData(selectedComponents)\n          };\n\n          /*\n           * loop through all the selected component ids and delete the\n           * components\n           */\n          for (let componentId of selectedComponents) {\n            this.ProjectService.deleteComponent(this.nodeId, componentId);\n          }\n\n          this.saveEvent('componentDeleted', 'Authoring', data);\n\n          // check if we need to show the node save or node submit buttons\n          this.checkIfNeedToShowNodeSaveOrNodeSubmitButtons();\n\n          this.ProjectService.saveProject();\n        } else {\n          // uncheck the component check boxes\n          this.clearComponentsToChecked();\n        }\n\n        /*\n         * Wait a small amount of time before returning the UI back to the\n         * normal view. This allows the author to see the component number\n         * and type view a little longer so that they can see the change\n         * they just made before we switch back to the normal view.\n         */\n        this.$timeout(() => {\n          // turn off the insert component mode\n          this.turnOffInsertComponentMode();\n\n          // uncheck the component check boxes\n          this.clearComponentsToChecked();\n\n          // show the component authoring\n          this.showComponentAuthoring();\n        }, 2000);\n      });\n    }\n  }\n\n  /**\n   * The cancel insert button was clicked\n   */\n  cancelInsertClicked() {\n    // hide all the authoring views\n    this.nodeAuthoringViewButtonClicked();\n\n    this.turnOffAddComponentMode();\n    this.turnOffMoveComponentMode();\n    this.turnOffInsertComponentMode();\n    this.clearComponentsToChecked();\n    this.showComponentAuthoring();\n  }\n\n  /**\n   * Check if we need to show the node save or node submit buttons\n   */\n  checkIfNeedToShowNodeSaveOrNodeSubmitButtons() {\n    if (this.ProjectService.doesAnyComponentShowSubmitButton(this.nodeId)) {\n      /*\n       * there is a component in this step that is showing their\n       * submit button\n       */\n    } else {\n      /*\n       * there is no component in this step that is showing their\n       * submit button\n       */\n\n      if (this.ProjectService.doesAnyComponentHaveWork(this.nodeId)) {\n        /*\n         * there is a component that generates work so we will show\n         * the step save button\n         */\n        this.node.showSaveButton = true;\n        this.node.showSubmitButton = false;\n\n        // hide the save button in all the components\n        this.hideAllComponentSaveButtons();\n      } else {\n        /*\n         * there are no components in the step that generates work\n         * so we will not show the step save button\n         */\n        this.node.showSaveButton = false;\n        this.node.showSubmitButton = false;\n      }\n    }\n  }\n\n  /**\n   * Insert the component so it becomes the first component in the step\n   */\n  insertComponentAsFirst() {\n    if (this.addComponentMode) {\n      this.handleAddComponent();\n    } else if (this.moveComponentMode) {\n      this.handleMoveComponent();\n    } else if (this.copyComponentMode) {\n      this.handleCopyComponent();\n    } else if (this.importComponentMode) {\n      this.handleImportComponent();\n    }\n  }\n\n  /**\n   * Insert the component after the given component id.\n   * @param componentId insert the component after this given component id\n   */\n  insertComponentAfter(componentId) {\n    if (this.addComponentMode) {\n      this.handleAddComponent(componentId);\n    } else if (this.moveComponentMode) {\n      this.handleMoveComponent(componentId);\n    } else if (this.copyComponentMode) {\n      this.handleCopyComponent(componentId);\n    } else if (this.importComponentMode) {\n      this.handleImportComponent(componentId);\n    }\n  }\n\n  /**\n   * Add components to this step.\n   * @param componentId (optional) Add the components after this component id.\n   * If the componentId is not provided, we will put the components at the\n   * beginning of the step.\n   */\n  handleAddComponent(componentId) {\n    let newComponents = [];\n    // create a component and add it to this node\n    let newComponent = this.ProjectService\n        .createComponent(this.nodeId, this.selectedComponent, componentId);\n\n    let data = {\n      \"componentId\": newComponent.id,\n      \"componentType\": newComponent.type\n    };\n    this.saveEvent('componentCreated', 'Authoring', data);\n    newComponents.push(newComponent);\n    this.turnOffAddComponentMode();\n    this.ProjectService.saveProject();\n    this.highlightNewComponentsAndThenShowComponentAuthoring(newComponents);\n  }\n\n  /**\n   * Move components in this step.\n   * @param componentId (optional) Put the moved components after this component\n   * id. If the componentId is not provided, we will put the components at the\n   * beginning of the step.\n   */\n  handleMoveComponent(componentId) {\n    let newComponents = [];\n    let selectedComponentIds = this.getSelectedComponentIds();\n    if (selectedComponentIds != null && selectedComponentIds.indexOf(componentId) != -1) {\n      /*\n       * the author is trying to move a component and place it after\n       * itself which we will not allow\n       */\n      if (selectedComponentIds.length == 1) {\n        alert(this.$translate('youAreNotAllowedToInsertTheSelectedItemAfterItself'));\n      } else if (selectedComponentIds.length > 1) {\n        alert(this.$translate('youAreNotAllowedToInsertTheSelectedItemsAfterItself'));\n      }\n    } else {\n      // data saved in the component moved event\n      let data = {\n        \"componentsMoved\": this.getComponentObjectsForEventData(selectedComponentIds)\n      };\n\n      // move the components to their new location\n      newComponents = this.ProjectService\n          .moveComponent(this.nodeId, selectedComponentIds, componentId);\n\n      this.saveEvent('componentMoved', 'Authoring', data);\n      this.turnOffMoveComponentMode();\n      this.ProjectService.saveProject();\n      this.highlightNewComponentsAndThenShowComponentAuthoring(newComponents);\n    }\n  }\n\n  /**\n   * Copy components in this step.\n   * @param componentId (optional) Put the copied components after this\n   * component id. If the componentId is not provided, we will put the\n   * components at the beginning of the step.\n   */\n  handleCopyComponent(componentId) {\n    let newComponents = [];\n    let selectedComponentIds = this.getSelectedComponentIds();\n\n    // data saved in the component copied event\n    let data = {};\n    let componentsCopied = this.getComponentObjectsForEventData(selectedComponentIds);\n\n    // copy the components to their new location\n    newComponents = this.ProjectService.copyComponentAndInsert(this.nodeId, selectedComponentIds, componentId);\n\n    // get the information for all the components that were copied\n    for (let c = 0; c < componentsCopied.length; c++) {\n      let componentCopied = componentsCopied[c];\n      let newComponent = newComponents[c];\n\n      componentCopied.fromComponentId = componentCopied.componentId;\n      componentCopied.toComponentId = newComponent.id;\n      delete componentCopied.componentId;\n    }\n\n    data.componentsCopied = componentsCopied;\n    this.saveEvent('componentCopied', 'Authoring', data);\n    this.turnOffCopyComponentMode();\n    this.ProjectService.saveProject();\n    this.highlightNewComponentsAndThenShowComponentAuthoring(newComponents);\n  }\n\n  /**\n   * Import components into this step.\n   * @param componentId (optional) Put the imported components after this\n   * component id. If the componentId is not provided, we will put the\n   * components at the beginning of the step.\n   */\n  handleImportComponent(componentId) {\n    // import the selected components and insert them\n    this.importComponents(this.nodeId, componentId).then((newComponents) => {\n      this.turnOffImportComponentMode();\n      this.ProjectService.saveProject();\n      this.highlightNewComponentsAndThenShowComponentAuthoring(newComponents);\n\n      /*\n       * refresh the project assets in case any of the imported\n       * components also imported assets\n       */\n      this.ProjectAssetService.retrieveProjectAssets();\n    });\n  }\n\n  /**\n   * Temporarily highlight the new components and then show the component\n   * authoring views. Used to bring user's attention to new changes.\n   * @param newComponents an array of the new components we have just added\n   */\n  highlightNewComponentsAndThenShowComponentAuthoring(newComponents) {\n    // use a timeout to allow the components time to show up in the UI\n    this.$timeout(() => {\n      if (newComponents != null) {\n        for (let newComponent of newComponents) {\n          if (newComponent != null) {\n            this.UtilService.temporarilyHighlightElement(newComponent.id);\n          }\n        }\n      }\n\n      /*\n       * Wait a small amount of time before returning the UI back to the\n       * normal view. This allows the author to see the component number\n       * and type view a little longer so that they can see the change\n       * they just made before we switch back to the normal view.\n       */\n      this.$timeout(() => {\n        this.showComponentAuthoring();\n        this.turnOffInsertComponentMode();\n        this.nodeAuthoringViewButtonClicked();\n        this.clearComponentsToChecked();\n\n        /*\n         * use a timeout to wait for the UI to update and then scroll\n         * to the first new component\n         */\n        this.$timeout(() => {\n          if (newComponents != null && newComponents.length > 0) {\n            // get the UI element of the first new component\n            let componentElement = $('#' + newComponents[0].id);\n\n            if (componentElement != null) {\n              // scroll to the first new component that we've added\n              $('#content').animate({\n                scrollTop: componentElement.offset().top - 200\n              }, 1000);\n            }\n          }\n        }, 1000);\n      }, 1000);\n    });\n  }\n\n\n  /**\n   * The author has chosen an authorable project to import from\n   * @param importProjectId the project id to import from\n   */\n  showMyImportProject(importProjectId) {\n    // clear the select drop down for the library project\n    this.importLibraryProjectId = null;\n\n    this.showImportProject(importProjectId);\n  }\n\n  /**\n   * The author has chosen a library project to import from\n   * @param importProjectId the project id to import from\n   */\n  showLibraryImportProject(importProjectId) {\n    this.importMyProjectId = null;\n    this.showImportProject(importProjectId);\n  }\n\n  /**\n   * Show the project we want to import steps from\n   * @param importProjectId the import project id\n   */\n  showImportProject(importProjectId) {\n    this.importProjectId = importProjectId;\n\n    if (this.importProjectId == null) {\n      // clear all the import project values\n      this.importProjectIdToOrder = {};\n      this.importProjectItems = [];\n      this.importMyProjectId = null;\n      this.importLibraryProjectId = null;\n      this.importProjectId = null;\n      this.importProject = null;\n    } else {\n      // get the import project\n      this.ProjectService.retrieveProjectById(this.importProjectId)\n          .then((projectJSON) => {\n\n        // create the mapping of node id to order for the import project\n        this.importProjectIdToOrder = {};\n        this.importProject = projectJSON;\n\n        // calculate the node order of the import project\n        let result = this.ProjectService.getNodeOrderOfProject(this.importProject);\n        this.importProjectIdToOrder = result.idToOrder;\n        this.importProjectItems = result.nodes;\n      });\n    }\n  }\n\n  /**\n   * Import the selected steps\n   */\n  importComponentsButtonClicked() {\n    let selectedComponents = this.getSelectedComponentsToImport();\n    if (selectedComponents == null || selectedComponents.length == 0) {\n      // the author did not select any components to import\n      alert('Please select a component to import.');\n    } else {\n      /*\n       * hide the import view because we want to go back to the\n       * project view so that the author can choose where to place\n       * the new steps\n       */\n      this.showImportView = false;\n      this.turnOnInsertComponentMode();\n      this.hideComponentAuthoring();\n      this.scrollToTopOfPage();\n    }\n  }\n\n  /**\n   * Get the selected components to import\n   * @return an array of selected components\n   * TODO refactor too many nesting\n   */\n  getSelectedComponentsToImport() {\n    let selectedComponents = [];\n    for (let item of this.importProjectItems) {\n      if (item != null && item.node != null && item.node.components != null) {\n        let componentsInNode = item.node.components;\n        for (let component of componentsInNode) {\n          if (component != null && component.checked) {\n            /*\n             * this component is checked so we will add it to\n             * the array of components that we will import\n             */\n            selectedComponents.push(component);\n          }\n        }\n      }\n    }\n    return selectedComponents;\n  }\n\n  /**\n   * Get the components that were selected\n   * @param insertAfterComponentId (optional) Insert the components after this\n   * component id. If this is null, we will insert the components at the\n   * beginning of the step.\n   */\n  importComponents(nodeId, insertAfterComponentId) {\n    // data saved in the component imported event\n    let data = {\n      \"componentsImported\": this.getComponentObjectsForImportEventData()\n    };\n\n    let selectedComponents = this.getSelectedComponentsToImport();\n    for (let selectedComponent of selectedComponents) {\n      if (selectedComponent != null) {\n        // remove the checked field\n        delete selectedComponent.checked;\n      }\n    }\n\n    // insert the components into the project\n    return this.ProjectService.importComponents(selectedComponents,\n        this.importProjectId, nodeId, insertAfterComponentId)\n        .then((newComponents) => {\n      for (let c = 0; c < data.componentsImported.length; c++) {\n        let componentImported = data.componentsImported[c];\n        let newComponent = newComponents[c];\n        let newComponentId = newComponent.id;\n\n        /*\n        * set the toComponentId so the event knows what the new\n        * component id is\n        */\n        componentImported.toComponentId = newComponentId;\n      }\n\n      this.saveEvent('componentImported', 'Authoring', data);\n      return newComponents;\n    });\n  }\n\n  scrollToTopOfPage() {\n    this.$anchorScroll('top');\n  }\n\n  /**\n   * Preview the import project in a new tab\n   */\n  previewImportProject() {\n    if (this.importProject != null) {\n      window.open(this.importProject.previewProjectURL);\n    }\n  }\n\n  /**\n   * Preview the step in a new tab\n   * @param node\n   */\n  previewImportNode(node) {\n    if (node != null) {\n      let nodeId = node.id;\n      let previewProjectURL = this.importProject.previewProjectURL;\n      let previewStepURL  = previewProjectURL + '#/vle/' + nodeId;\n      window.open(previewStepURL);\n    }\n  }\n\n  /**\n   * Preview the component in a new tab\n   * @param node the node\n   * @param componentId the component id\n   */\n  previewImportComponent(node, componentId) {\n    if (node != null) {\n      let nodeId = node.id;\n      let previewProjectURL = this.importProject.previewProjectURL;\n      let previewStepURL  = previewProjectURL + '#/vle/' + nodeId + '/' + componentId;\n      window.open(previewStepURL);\n    }\n  }\n\n  /**\n   * We are in the create a new component mode and the user has clicked\n   * on a component type\n   * @param componentType the component type the author clicked\n   */\n  componentTypeClicked(componentType) {\n    this.selectedComponent = componentType;\n  }\n\n  /**\n   * We are in the create a new component mode and the user has clicked\n   * on the cancel button\n   */\n  cancelCreateComponentClicked() {\n    // hide all the authoring views\n    this.nodeAuthoringViewButtonClicked();\n\n    this.turnOffAddComponentMode();\n    this.turnOffMoveComponentMode();\n    this.turnOffInsertComponentMode()\n    this.showComponentAuthoring();\n  }\n\n  /**\n   * Get the component type label\n   * @param componentType the component type\n   * @return the component type label\n   * example\n   * \"Open Response\"\n   */\n  getComponentTypeLabel(componentType) {\n    return this.UtilService.getComponentTypeLabel(componentType);\n  }\n\n  /**\n   * The author has clicked the back button\n   */\n  backButtonClicked() {\n    if (this.showImportView || this.showRubric || this.showAdvanced) {\n      if (this.showJSON) {\n        /*\n         * we are showing the JSON so we will check if it has changed\n         * and then save and parse the JSON\n         */\n        this.saveAndParseJSON();\n      }\n\n      // we are in the import view so we will go back to the node view\n      this.nodeAuthoringViewButtonClicked();\n\n      this.$state\n        .go('root.project.node', {projectId: this.projectId, nodeId: this.nodeId});\n    } else {\n      // we are in the node view so we will go back to the project view\n      this.close();\n    }\n  }\n\n  /**\n   * Save an Authoring Tool event\n   * @param eventName the name of the event\n   * @param category the category of the event\n   * example 'Navigation' or 'Authoring'\n   * @param data (optional) an object that contains more specific data about\n   * the event\n   */\n  saveEvent(eventName, category, data) {\n    let context = 'AuthoringTool';\n    let nodeId = this.nodeId;\n    let componentId = null;\n    let componentType = null;\n    if (data == null) {\n      data = {};\n    }\n    this.TeacherDataService.saveEvent(context, nodeId, componentId, componentType, category, eventName, data);\n  }\n\n  /**\n   * Get an array of objects that contain the component id and type\n   * @param componentIds an array of component ids\n   * @return an array of objects that contain the component id and type\n   * TODO refactor too many nesting\n   */\n  getComponentObjectsForEventData(componentIds) {\n    let componentObjects = [];\n    if (componentIds != null) {\n      for (let componentId of componentIds) {\n        if (componentId != null) {\n          let component = this.ProjectService\n              .getComponentByNodeIdAndComponentId(this.nodeId, componentId);\n\n          if (component != null) {\n            let tempComponent = {\n              \"componentId\": component.id,\n              \"type\": component.type\n            };\n            componentObjects.push(tempComponent);\n          }\n        }\n      }\n    }\n    return componentObjects;\n  }\n\n  /**\n   * Get an array of objects that contain the node id, component id and type\n   * @return an array of objects that contain the node id, component id and type\n   * TODO refactor too many nesting\n   */\n  getComponentObjectsForImportEventData() {\n    let componentObjects = [];\n    for (let item of this.importProjectItems) {\n      if (item != null && item.node != null && item.node.components != null) {\n        for (let component of item.node.components) {\n          if (component != null && component.checked) {\n            let tempComponent = {\n              \"fromProjectId\": parseInt(this.importProjectId),\n              \"fromNodeId\": item.node.id,\n              \"fromComponentId\": component.id,\n              \"type\": component.type\n            };\n\n            /*\n             * this component is checked so we will add it to\n             * the array of components that we will import\n             */\n            componentObjects.push(tempComponent);\n          }\n        }\n      }\n    }\n    return componentObjects;\n  }\n\n  /**\n   * Check if the JSON has changed and then save and parse the JSON\n   */\n  saveAndParseJSON() {\n    if (this.showJSON) {\n      /*\n       * We are showing the JSON so we will now check to see if the\n       * JSON changed. If the JSON changed we will save the node with\n       * new JSON.\n       */\n      if (this.authoringNodeContentJSONString != angular.toJson(this.node, 4)) {\n        // the JSON has been changed so we will update the node\n\n        // create the updated node object\n        let updatedNode = angular.fromJson(this.authoringNodeContentJSONString);\n\n        // set the updated node into the project\n        this.ProjectService.setNode(this.nodeId, updatedNode);\n\n        // set the updated node into this controller\n        this.node = updatedNode;\n\n        // set the components into this controller\n        this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);\n\n        // set the current node\n        this.TeacherDataService.setCurrentNodeByNodeId(this.nodeId);\n\n        // update the branch authoring fields into the controller\n        this.populateBranchAuthoring();\n\n        // save the project\n        this.authoringViewNodeChanged().then(() => {\n          this.$rootScope.$broadcast('parseProject');\n        });\n      }\n    }\n  }\n\n  /**\n   * The advanced button was clicked on a component. We will broadcast an event\n   * so that the appropriate child component can display their advanced\n   * authoring options.\n   * @param componentId The component id whose advanced button was clicked.\n   */\n  componentAdvancedButtonClicked(componentId) {\n    this.$rootScope.$broadcast('componentAdvancedButtonClicked', { componentId: componentId });\n  }\n\n  /**\n   * A constraint removal criteria step has changed.\n   * @param criteria The removal criteria object.\n   */\n  authoringViewConstraintRemovalCriteriaNodeIdChanged(criteria) {\n    criteria.params.componentId = '';\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * A constraint removal criteria component has changed.\n   * @param criteria The removal criteria object.\n   */\n  authoringViewConstraintRemovalCriteriaComponentIdChanged(criteria) {\n    this.authoringViewNodeChanged();\n  }\n}\n\nNodeAuthoringController.$inject = [\n    '$anchorScroll',\n    '$filter',\n    '$injector',\n    '$location',\n    '$mdDialog',\n    '$rootScope',\n    '$scope',\n    '$state',\n    '$stateParams',\n    '$timeout',\n    'ConfigService',\n    'NodeService',\n    'ProjectAssetService',\n    'ProjectService',\n    'TeacherDataService',\n    'UtilService'\n];\n\nexport default NodeAuthoringController;\n"]}
\ No newline at end of file
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strict';\n\nclass NodeAuthoringController {\n\n  constructor(\n      $anchorScroll,\n      $filter,\n      $injector,\n      $location,\n      $mdDialog,\n      $rootScope,\n      $scope,\n      $state,\n      $stateParams,\n      $timeout,\n      ConfigService,\n      NodeService,\n      ProjectAssetService,\n      ProjectService,\n      TeacherDataService,\n      UtilService) {\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$location = $location;\n    this.$mdDialog = $mdDialog;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$state = $state;\n    this.$stateParams = $stateParams;\n    this.$timeout = $timeout;\n    this.$translate = this.$filter('translate');\n    this.ConfigService = ConfigService;\n    this.NodeService = NodeService;\n    this.ProjectAssetService = ProjectAssetService;\n    this.ProjectService = ProjectService;\n    this.TeacherDataService = TeacherDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n    this.projectId = $stateParams.projectId;\n    this.nodeId = $stateParams.nodeId;\n    this.showCreateComponent = false;\n    this.showEditTransitions = false;\n    this.selectedComponent = null;\n    this.nodeCopy = null;\n    this.undoStack = [];\n    this.howToChooseAmongAvailablePathsOptions =\n        [null, 'random', 'workgroupId', 'firstAvailable', 'lastAvailable'];\n    this.whenToChoosePathOptions =\n        [null, 'enterNode', 'exitNode', 'scoreChanged', 'studentDataChanged'];\n    this.canChangePathOptions = [null, true, false];\n    this.createBranchBranches = [];\n    this.showComponents = true;\n    this.showStepButtons = true;\n    this.showComponentAuthoringViews = true;\n\n    // mapping from component id to whether the component checkbox is checked\n    this.componentsToChecked = {};\n\n    this.TeacherDataService.setCurrentNodeByNodeId(this.nodeId);\n\n    // the available constraint actions\n    this.constraintActions = [\n      {\n        value: \"\",\n        text: this.$translate('pleaseChooseAnAction')\n      },\n      {\n        value: \"makeAllNodesAfterThisNotVisitable\",\n        text: this.$translate('makeAllNodesAfterThisNotVisitable')\n      },\n      {\n        value: \"makeAllNodesAfterThisNotVisible\",\n        text: this.$translate('makeAllNodesAfterThisNotVisible')\n      },\n      {\n        value: \"makeAllOtherNodesNotVisitable\",\n        text: this.$translate('makeAllOtherNodesNotVisitable')\n      },\n      {\n        value: \"makeAllOtherNodesNotVisible\",\n        text: this.$translate('makeAllOtherNodesNotVisible')\n      },\n      {\n        value: \"makeThisNodeNotVisitable\",\n        text: this.$translate('makeThisNodeNotVisitable')\n      },\n      {\n        value: \"makeThisNodeNotVisible\",\n        text: this.$translate('makeThisNodeNotVisible')\n      }\n    ];\n\n    // the available removal conditionals\n    this.removalConditionals = [\n      {\n        value: \"all\",\n        text: this.$translate('all')\n      },\n      {\n        value: \"any\",\n        text: this.$translate('any')\n      }\n    ];\n\n    // the available removal criteria\n    this.removalCriteria = [\n      {\n        value: \"\",\n        text: this.$translate('pleaseChooseARemovalCriteria')\n      },\n      {\n        value: \"isCompleted\",\n        text: this.$translate('isCompleted'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          }\n        ]\n      },\n      {\n        value: \"score\",\n        text: this.$translate('SCORE'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"component\",\n            text: this.$translate('component')\n          },\n          {\n            value: \"scores\",\n            text: this.$translate('scoresParens')\n          }\n        ]\n      },\n      {\n        value: \"branchPathTaken\",\n        text: this.$translate('branchPathTaken'),\n        params: [\n          {\n            value: \"fromNodeId\",\n            text: this.$translate('fromStep')\n          },\n          {\n            value: \"toNodeId\",\n            text: this.$translate('toStep')\n          }\n        ]\n      },\n      {\n        value: \"choiceChosen\",\n        text: this.$translate('choiceChosen'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('component')\n          },\n          {\n            value: \"choiceIds\",\n            text: this.$translate('choices')\n          }\n        ]\n      },\n      {\n        value: \"isCorrect\",\n        text: this.$translate('IS_CORRECT'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('component')\n          }\n        ]\n      },\n      {\n        value: \"usedXSubmits\",\n        text: this.$translate('usedXSubmits'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('component')\n          },\n          {\n            value: \"requiredSubmitCount\",\n            text: this.$translate('requiredSubmitCount')\n          }\n        ]\n      },\n      {\n        value: \"isVisible\",\n        text: this.$translate('isVisible'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          }\n        ]\n      },\n      {\n        value: \"isVisitable\",\n        text: this.$translate('isVisitable'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          }\n        ]\n      },\n      {\n        value: \"isVisited\",\n        text: this.$translate('isVisited'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          }\n        ]\n      },\n      {\n        value: \"isPlanningActivityCompleted\",\n        text: this.$translate('isPlanningActivityCompleted')\n      },\n      {\n        value: \"wroteXNumberOfWords\",\n        text: this.$translate('wroteXNumberOfWords'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('step')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('component')\n          },\n          {\n            value: \"requiredNumberOfWords\",\n            text: this.$translate('requiredNumberOfWords')\n          }\n        ]\n      }\n    ];\n\n    // available transitionCriterias\n    this.transitionCriterias = [\n      {\n        value: \"score\",\n        text: this.$translate('getASpecificScoreOnAComponent'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('nodeID')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('componentID')\n          },\n          {\n            value: \"scores\",\n            text: this.$translate('scoresParens')\n          }\n        ]\n      },\n      {\n        value: \"choiceChosen\",\n        text: this.$translate('chooseASpecificChoiceOnAComponent'),\n        params: [\n          {\n            value: \"nodeId\",\n            text: this.$translate('nodeID')\n          },\n          {\n            value: \"componentId\",\n            text: this.$translate('componentID')\n          },\n          {\n            value: \"choiceIds\",\n            text: this.$translate('choices')\n          }\n        ]\n      }\n    ];\n\n    this.branchCriteria = [\n      {\n        value: \"workgroupId\",\n        text: this.$translate('WORKGROUP_ID')\n      },\n      {\n        value: \"score\",\n        text: this.$translate('SCORE')\n      },\n      {\n        value: \"choiceChosen\",\n        text: this.$translate('choiceChosen')\n      },\n      {\n        value: \"random\",\n        text: this.$translate('random')\n      }\n    ];\n\n    // the array of component types that can be created\n    // TODO: automate by looping through active component types for this WISE instance\n    this.componentTypes = [\n      {componentType: 'Animation', componentName: this.UtilService.getComponentTypeLabel('Animation')},\n      {componentType: 'AudioOscillator', componentName: this.UtilService.getComponentTypeLabel('AudioOscillator')},\n      {componentType: 'ConceptMap', componentName: this.UtilService.getComponentTypeLabel('ConceptMap')},\n      {componentType: 'Discussion', componentName: this.UtilService.getComponentTypeLabel('Discussion')},\n      {componentType: 'Draw', componentName: this.UtilService.getComponentTypeLabel('Draw')},\n      {componentType: 'Embedded', componentName: this.UtilService.getComponentTypeLabel('Embedded')},\n      {componentType: 'Graph', componentName: this.UtilService.getComponentTypeLabel('Graph')},\n      {componentType: 'HTML', componentName: this.UtilService.getComponentTypeLabel('HTML')},\n      {componentType: 'Label', componentName: this.UtilService.getComponentTypeLabel('Label')},\n      {componentType: 'Match', componentName: this.UtilService.getComponentTypeLabel('Match')},\n      {componentType: 'MultipleChoice', componentName: this.UtilService.getComponentTypeLabel('MultipleChoice')},\n      {componentType: 'OpenResponse', componentName: this.UtilService.getComponentTypeLabel('OpenResponse')},\n      {componentType: 'OutsideURL', componentName: this.UtilService.getComponentTypeLabel('OutsideURL')},\n      {componentType: 'Table', componentName: this.UtilService.getComponentTypeLabel('Table')}\n    ];\n\n    // select the first component type by default\n    this.selectedComponent = this.componentTypes[0].componentType;\n    this.node = this.ProjectService.getNodeById(this.nodeId);\n\n    // get the step number e.g. 1.3\n    this.nodePosition = this.ProjectService.getNodePositionById(this.nodeId);\n\n    // get the components in the node\n    this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);\n\n    /*\n     * remember a copy of the node at the beginning of this node authoring\n     * session in case we need to roll back if the user decides to\n     * cancel/revert all the changes.\n     */\n    this.originalNodeCopy = this.UtilService.makeCopyOfJSONObject(this.node);\n\n    /*\n     * remember the current version of the node. this will be updated each\n     * time the user makes a change.\n     */\n    this.currentNodeCopy = this.UtilService.makeCopyOfJSONObject(this.node);\n\n    // populate the branch authoring if any\n    this.populateBranchAuthoring();\n\n    // create the summernote rubric element id\n    this.summernoteRubricId = 'summernoteRubric_' + this.nodeId;\n\n    // the tooltip text for the insert WISE asset button\n    let insertAssetString = this.$translate('INSERT_ASSET');\n\n    /*\n     * create the custom button for inserting WISE assets into\n     * summernote\n     */\n    let insertAssetButton = this.UtilService.createInsertAssetButton(\n        this, null, this.nodeId, null, 'rubric', insertAssetString);\n\n    /*\n     * the options that specifies the tools to display in the\n     * summernote prompt\n     */\n    this.summernoteRubricOptions = {\n      toolbar: [\n        ['style', ['style']],\n        ['font', ['bold', 'underline', 'clear']],\n        ['fontname', ['fontname']],\n        ['fontsize', ['fontsize']],\n        ['color', ['color']],\n        ['para', ['ul', 'ol', 'paragraph']],\n        ['table', ['table']],\n        ['insert', ['link', 'video']],\n        ['view', ['fullscreen', 'codeview', 'help']],\n        ['customButton', ['insertAssetButton']]\n      ],\n      height: 300,\n      disableDragAndDrop: true,\n      buttons: {\n        insertAssetButton: insertAssetButton\n      }\n    };\n\n    /*\n     * inject the asset paths into the rubric html and set the summernote\n     * rubric html\n     */\n    this.summernoteRubricHTML =\n        this.ProjectService.replaceAssetPaths(this.node.rubric);\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     * TODO refactor too many nesting\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n      if (args != null) {\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == null) {\n          // the asset was selected for this component\n          if (args.assetItem != null && args.assetItem.fileName != null) {\n            let fileName = args.assetItem.fileName;\n            /*\n             * get the assets directory path\n             * e.g.\n             * /wise/curriculum/3/\n             */\n            let assetsDirectoryPath =\n                this.ConfigService.getProjectAssetsDirectoryPath();\n            let fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n            if (args.target == 'rubric') {\n              // the target is the summernote rubric element\n              let summernoteId = 'summernoteRubric_' + this.nodeId;\n\n              if (this.UtilService.isImage(fileName)) {\n                /*\n                 * move the cursor back to its position when the asset chooser\n                 * popup was clicked\n                 */\n                $('#' + summernoteId).summernote('editor.restoreRange');\n                $('#' + summernoteId).summernote('editor.focus');\n\n                // add the image html\n                $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n              } else if (this.UtilService.isVideo(fileName)) {\n                /*\n                 * move the cursor back to its position when the asset chooser\n                 * popup was clicked\n                 */\n                $('#' + summernoteId).summernote('editor.restoreRange');\n                $('#' + summernoteId).summernote('editor.focus');\n\n                // insert the video element\n                let videoElement = document.createElement('video');\n                videoElement.controls = 'true';\n                videoElement.innerHTML =\n                    '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                $('#' + summernoteId).summernote('insertNode', videoElement);\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    this.$scope.$on('componentShowSubmitButtonValueChanged', (event, args) => {\n      let showSubmitButton = args.showSubmitButton;\n      if (showSubmitButton) {\n        /*\n         * a component is showing their submit button so we will hide\n         * the step save button and submit buttons\n         */\n        this.node.showSaveButton = false;\n        this.node.showSubmitButton = false;\n\n        // turn on the save buttons for all components in this step\n        this.ProjectService.turnOnSaveButtonInComponents(this.node.id);\n      } else {\n        /*\n         * a component is hiding their submit button so we may need\n         * to show the step save button\n         */\n        if (this.ProjectService.doesAnyComponentShowSubmitButton(this.node.id)) {\n          /*\n           * there is at least one component in the step that is showing\n           * their submit button so we will show the save button on\n           * all the components\n           */\n\n          // turn on the save buttons for all components in this step\n          this.ProjectService.turnOnSaveButtonInComponents(this.node.id);\n        } else {\n          /*\n           * no components in this step show their submit button so we\n           * will show the step save button\n           */\n          this.node.showSaveButton = true;\n          this.node.showSubmitButton = false;\n\n          // turn off the save buttons for all the components\n          this.ProjectService.turnOffSaveButtonInComponents(this.node.id);\n        }\n      }\n\n      // save changes\n      this.authoringViewNodeChanged();\n    });\n\n    if (this.$state.current.name == 'root.project.nodeConstraints') {\n      this.$timeout(() => {\n        this.nodeAuthoringViewButtonClicked('advanced');\n        this.$timeout(() => {\n          this.nodeAuthoringViewButtonClicked('editConstraints');\n        });\n      });\n    }\n\n    if (this.$state.current.name == 'root.project.nodeEditPaths') {\n      this.$timeout(() => {\n        this.nodeAuthoringViewButtonClicked('advanced');\n        this.$timeout(() => {\n          this.nodeAuthoringViewButtonClicked('editTransitions');\n        });\n      });\n    }\n\n    this.scrollToTopOfPage();\n\n    let data = {\n      \"title\": this.ProjectService.getNodePositionAndTitleByNodeId(this.nodeId)\n    };\n\n    if (this.ProjectService.isGroupNode(this.nodeId)) {\n      this.saveEvent('activityViewOpened', 'Navigation', data);\n    } else {\n      this.saveEvent('stepViewOpened', 'Navigation', data);\n    }\n  }\n\n  /**\n   * Populate the branch authoring\n   * TODO refactor too much nesting\n   */\n  populateBranchAuthoring() {\n    if (this.node.transitionLogic != null) {\n      // clear the create branch branches so we can populate them again\n      this.createBranchBranches = [];\n\n      // get the number of branches\n      if (this.node.transitionLogic.transitions != null) {\n        this.createBranchNumberOfBranches = this.node.transitionLogic.transitions.length;\n      } else {\n        this.createBranchNumberOfBranches = 0;\n      }\n\n      for (let t = 0; t < this.node.transitionLogic.transitions.length; t++) {\n        let transition = this.node.transitionLogic.transitions[t];\n\n        if (transition != null) {\n\n          // create a branch object to hold all the related information for that branch\n          let branch = {};\n\n          // set the branch number for display purposes\n          branch.number = t + 1;\n\n          /*\n           * set the mapping of all the ids to order for use when choosing which items are\n           * in the branch path\n           */\n          branch.items = this.UtilService.makeCopyOfJSONObject(this.ProjectService.idToOrder);\n\n          // an array that will hold all the checked items in the branch path\n          branch.checkedItemsInBranchPath = [];\n\n          // set the transition into the branch so we can access it easily later\n          branch.transition = transition;\n\n          // add the branch to the array of branches\n          this.createBranchBranches.push(branch);\n\n          // get the transition criteria\n          let criteria = transition.criteria;\n\n          if (criteria != null) {\n            for (let criterion of criteria) {\n              if (criterion != null) {\n                let name = criterion.name;\n                let params = criterion.params;\n\n                if (params != null) {\n                  // get the node id and component id params if any\n                  this.createBranchNodeId = params.nodeId;\n                  this.createBranchComponentId = params.componentId;\n                }\n\n                if (name == 'score') {\n                  // this is a score criteria\n\n                  // set the branch criterion to score\n                  this.createBranchCriterion = 'score';\n\n                  if (params != null && params.scores != null) {\n                    // set the scores into the branch object\n                    branch.scores = params.scores;\n                  }\n                } else if (name == 'choiceChosen') {\n                  // this is a choice chosen criteria\n\n                  // set the branch criterion to choice chosen\n                  this.createBranchCriterion = 'choiceChosen';\n\n                  if (params != null && params.choiceIds != null && params.choiceIds.length > 0) {\n                    // set the choice id into the branch object\n                    branch.choiceId = params.choiceIds[0];\n                  }\n\n                  // get the choices from the component\n                  let choices = this.ProjectService.getChoicesByNodeIdAndComponentId(this.createBranchNodeId, this.createBranchComponentId);\n\n                  if (choices != null) {\n                    // set the choices into the branch object\n                    branch.choices = this.UtilService.makeCopyOfJSONObject(choices);\n                  }\n                }\n              }\n            }\n          }\n\n          // get the node ids in the branch path\n          let nodeIdsInBranch = this.ProjectService\n              .getNodeIdsInBranch(this.nodeId, transition.to);\n          for (let nodeId of nodeIdsInBranch) {\n            let item = branch.items[nodeId];\n            if (item != null) {\n              // make the item checked\n              item.checked = true;\n\n              // add the item to the array of checked items in this branch path\n              branch.checkedItemsInBranchPath.push(item);\n            }\n          }\n\n          // set the node ids in branch array into the branch object\n          branch.nodeIdsInBranch = nodeIdsInBranch;\n\n          if (nodeIdsInBranch.length > 0) {\n            // get the last node id in the branch path\n            let lastNodeIdInBranch = nodeIdsInBranch[nodeIdsInBranch.length - 1];\n\n            if (lastNodeIdInBranch != null) {\n              let transitionsFromLastNode = this.ProjectService\n                  .getTransitionsByFromNodeId(lastNodeIdInBranch);\n              if (transitionsFromLastNode != null &&\n                  transitionsFromLastNode.length > 0) {\n                let transition = transitionsFromLastNode[0];\n                if (transition != null) {\n                  this.createBranchMergePointNodeId = transition.to;\n                }\n              }\n            }\n          }\n        }\n      }\n\n      if (this.createBranchCriterion == null) {\n        /*\n         * we have not been able to determine the branch criterion yet\n         * so we will look at the howToChooseAmongAvailablePaths field\n         */\n        if (this.node.transitionLogic.howToChooseAmongAvailablePaths == 'workgroupId') {\n          // set the branch criterion to workgroup id\n          this.createBranchCriterion = 'workgroupId';\n        } else if (this.node.transitionLogic.howToChooseAmongAvailablePaths == 'random') {\n          // set the branch criterion to random\n          this.createBranchCriterion = 'random';\n        }\n      }\n    }\n  }\n\n  /**\n   * Launch VLE with this current step as the initial step\n   */\n  previewStepInNewWindow() {\n    let data = { \"constraints\": true };\n    this.saveEvent('stepPreviewed', 'Navigation', data);\n\n    let previewProjectURL = this.ConfigService.getConfigParam('previewProjectURL');\n    let previewStepURL  = previewProjectURL + '#/vle/' + this.nodeId;\n    window.open(previewStepURL);\n  };\n\n  /**\n   * Launch VLE with this current step as the initial step without constraints\n   */\n  previewStepWithoutConstraintsInNewWindow() {\n    let data = { \"constraints\": false };\n    this.saveEvent('stepPreviewed', 'Navigation', data);\n\n    let previewProjectURL = this.ConfigService.getConfigParam('previewProjectURL');\n    let previewStepURL  = previewProjectURL + '?constraints=false' + '#/vle/' + this.nodeId;\n    window.open(previewStepURL);\n  };\n\n  /**\n   * Close the node authoring view\n   */\n  close() {\n    this.$scope.$broadcast('exitNode', {nodeToExit: this.node});\n    this.TeacherDataService.setCurrentNode(null);\n    this.$state.go('root.project', {projectId: this.projectId});\n    this.scrollToTopOfPage();\n  };\n\n  /**\n   * Display an error saving during advanced authoring, most-likely due to malformed JSON\n   */\n  showSaveErrorAdvancedAuthoring() {\n    alert(this.$translate('saveErrorAdvancedAuthoring'));\n  }\n\n  /**\n   * The author has clicked the cancel button which will revert all\n   * the recent changes since they opened the node.\n   */\n  cancel() {\n    // check if the user has made any changes\n    if (!angular.equals(this.node, this.originalNodeCopy)) {\n      // the user has made changes\n      if (confirm(this.$translate('confirmUndo'))) {\n        // revert the node back to the previous version\n        this.ProjectService.replaceNode(this.nodeId, this.originalNodeCopy);\n        this.ProjectService.saveProject();\n        this.close();\n      }\n    } else {\n      // the user has not made any changes, so close the node authoring view\n      this.close();\n    }\n  }\n\n  /**\n   * Add a new transition for this node.\n   */\n  addNewTransition() {\n    if (this.node.transitionLogic.transitions == null) {\n      this.node.transitionLogic.transitions = [];\n    }\n    let nodeTransitions = this.node.transitionLogic.transitions;\n    if (nodeTransitions.length > 0) {\n      // If this node already has transitions, copy the last one.\n      let lastNodeTransition = nodeTransitions[nodeTransitions.length - 1];\n      let newTransition = {\n        \"to\": lastNodeTransition.to\n      };\n      nodeTransitions.push(newTransition);\n    } else {\n      // Otherwise set the new transition to the current nodeId\n      let newTransition = {\n        \"to\": this.nodeId\n      };\n      nodeTransitions.push(newTransition);\n    }\n\n    if (nodeTransitions.length > 1) {\n      /*\n       * there is more than one transition so we will set default values\n       * for the transition logic parameters if they haven't already been\n       * set\n       */\n      if (this.node.transitionLogic.howToChooseAmongAvailablePaths == null) {\n        this.node.transitionLogic.howToChooseAmongAvailablePaths = 'workgroupId';\n      }\n\n      if (this.node.transitionLogic.whenToChoosePath == null) {\n        this.node.transitionLogic.whenToChoosePath = 'enterNode';\n      }\n\n      if (this.node.transitionLogic.canChangePath == null) {\n        this.node.transitionLogic.canChangePath = false;\n      }\n\n      if (this.node.transitionLogic.maxPathsVisitable == null) {\n        this.node.transitionLogic.maxPathsVisitable = 1;\n      }\n    }\n    // save changes\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The transition to node id has changed so need to recalculate the step\n   * numbers\n   */\n  authoringViewTransitionToNodeIdChanged() {\n    /*\n     * update the node numbers now that a step has been added to a branch path\n     * e.g. if this is a branching step that is called\n     * 1.5 B View the Potential Energy\n     * then the node number is 1.5 B\n    */\n    this.ProjectService.calculateNodeNumbers();\n\n    // save changes\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * Add a new transition criteria for the specified transition.\n   */\n  addNewTransitionCriteria(transition) {\n    let nodeTransitions = this.node.transitionLogic.transitions;\n    for (let nodeTransition of nodeTransitions) {\n      if (nodeTransition == transition) {\n        if (nodeTransition.criteria == null) {\n          nodeTransition.criteria = [];\n        }\n        let newTransitionCriteria = {\n          \"name\":\"\",\n          \"params\": {\n            \"nodeId\": \"\",\n            \"componentId\": \"\"\n          }\n        };\n        nodeTransition.criteria.push(newTransitionCriteria);\n      }\n    }\n    // save changes\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The transition criteria node id changed so we will update the params\n   * accordingly.\n   * @param transitionCriteria the transition criteria object that changed\n   */\n  transitionCriteriaNodeIdChanged(transitionCriteria) {\n    if (transitionCriteria!= null && transitionCriteria.params != null) {\n      // remember the node id\n      let nodeId = transitionCriteria.params.nodeId;\n\n      // clear the params\n      transitionCriteria.params = {};\n\n      if (nodeId != null) {\n        // set the node id back into the params\n        transitionCriteria.params.nodeId = nodeId;\n      }\n    }\n\n    // save the node\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The transition criteria component id changed so we will update the params\n   * accordingly.\n   * @param transitionCriteria the transition criteria object that changed\n   */\n  transitionCriteriaComponentIdChanged(transitionCriteria) {\n    if (transitionCriteria!= null && transitionCriteria.params != null) {\n      // remember the node id and component id\n      let nodeId = transitionCriteria.params.nodeId;\n      let componentId = transitionCriteria.params.componentId;\n\n      // clear the params\n      transitionCriteria.params = {};\n\n      if (nodeId != null) {\n        // set the node id back into the params\n        transitionCriteria.params.nodeId = nodeId;\n      }\n\n      if (componentId != null) {\n        // set the component id back into the params\n        transitionCriteria.params.componentId = componentId;\n      }\n    }\n\n    // save the node\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * Deletes the specified transition from this node\n   * @param transition the transition to delete\n   */\n  deleteTransition(transition) {\n    let stepTitle = '';\n    if (transition != null) {\n      stepTitle = this.ProjectService.getNodePositionAndTitleByNodeId(transition.to);\n    }\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisPath', { stepTitle: stepTitle }));\n    if (answer) {\n      let nodeTransitions = this.node.transitionLogic.transitions;\n      let index = nodeTransitions.indexOf(transition);\n      if (index > -1) {\n        nodeTransitions.splice(index, 1);\n      }\n      if (nodeTransitions.length <= 1) {\n        /*\n         * there is zero or one transition so we will clear the parameters\n         * below since they only apply when there are multiple transitions\n         */\n        this.node.transitionLogic.howToChooseAmongAvailablePaths = null;\n        this.node.transitionLogic.whenToChoosePath = null;\n        this.node.transitionLogic.canChangePath = null;\n        this.node.transitionLogic.maxPathsVisitable = null;\n      }\n      // save changes\n      this.authoringViewNodeChanged();\n    }\n  }\n\n  /**\n   * Save transitions for this node\n   */\n  saveTransitions() {\n    this.ProjectService.saveProject();\n    this.showEditTransitions = false;\n  }\n\n  /**\n   * The add component button was clicked\n   */\n  addComponentButtonClicked() {\n    // select the first component type by default\n    this.selectedComponent = this.componentTypes[0].componentType;\n\n    // show the add component UI elements\n    this.nodeAuthoringViewButtonClicked('addComponent');\n\n    // turn on add component mode\n    this.turnOnAddComponentMode();\n\n    // turn on the move component mode\n    this.turnOffMoveComponentMode();\n\n    // turn on the insert component mode\n    this.turnOnInsertComponentMode();\n\n    // hide the component authoring\n    this.hideComponentAuthoring();\n  }\n\n  /**\n   * Delete the component from this node\n   * @param componentId the component id\n   */\n  deleteComponent(componentId) {\n    if (confirm(this.$translate('confirmDeleteComponent'))) {\n      // delete the component from the node\n      this.ProjectService.deleteComponent(this.nodeId, componentId);\n\n      // check if we need to show the node save or node submit buttons\n      this.checkIfNeedToShowNodeSaveOrNodeSubmitButtons();\n      this.ProjectService.saveProject();\n    }\n  }\n\n  /**\n   * Hide the save button in all the components\n   * TODO refactor too much nesting\n   */\n  hideAllComponentSaveButtons() {\n    let components = this.components;\n    if (components != null) {\n      for (let component of components) {\n        if (component != null) {\n          let componentType = component.type;\n\n          // get the service for the component type\n          let service = this.$injector.get(componentType + 'Service');\n          if (service != null) {\n            if (service.componentUsesSaveButton()) {\n              /*\n               * this component uses a save button so we will hide\n               * it\n               */\n              component.showSaveButton = false;\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * The node has changed in the authoring view\n   * @param parseProject whether to parse the whole project to recalculate\n   * significant changes such as branch paths\n   */\n  authoringViewNodeChanged(parseProject) {\n    // put the previous version of the node on to the undo stack\n    this.undoStack.push(this.currentNodeCopy);\n\n    // update the current node copy\n    this.currentNodeCopy = this.UtilService.makeCopyOfJSONObject(this.node);\n\n    if (parseProject) {\n      // refresh the project\n      this.ProjectService.parseProject();\n      this.items = this.ProjectService.idToOrder;\n    }\n\n    return this.ProjectService.saveProject();\n  }\n\n  /**\n   * Undo the last change by reverting the node to the previous version\n   */\n  undo() {\n    if (this.undoStack.length === 0) {\n      // the undo stack is empty so there are no changes to undo\n      alert(this.$translate('noUndoAvailable'));\n    } else if (this.undoStack.length > 0) {\n      // the undo stack has elements\n\n      if (confirm(this.$translate('confirmUndoLastChange'))) {\n        // perform any node cleanup if necessary\n        this.$scope.$broadcast('exitNode', {nodeToExit: this.node});\n\n        // get the previous version of the node\n        let nodeCopy = this.undoStack.pop();\n\n        // revert the node back to the previous version\n        this.ProjectService.replaceNode(this.nodeId, nodeCopy);\n\n        this.node = this.ProjectService.getNodeById(this.nodeId);\n        this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);\n        this.ProjectService.saveProject();\n      }\n\n    }\n  }\n\n  /**\n   * Get the removal criteria params for a removal criteria name\n   * @param name a removal criteria name e.g. 'isCompleted', 'score', 'branchPathTaken'\n   * @return the params for the given removal criteria name\n   */\n  getRemovalCriteriaParamsByName(name) {\n    let params = [];\n    if (name != null) {\n      for (let singleRemovalCriteria of this.removalCriteria) {\n        if (singleRemovalCriteria != null) {\n          if (singleRemovalCriteria.value == name) {\n            /*\n             * we have found the removal criteria we are looking for\n             * so we will get its params\n             */\n            params = singleRemovalCriteria.params;\n            break;\n          }\n        }\n      }\n    }\n    return params;\n  }\n\n  /**\n   * Get the transition criteria params for a transition criteria name\n   * @param name a transition criteria name e.g.  'score', 'choiceChosen'\n   * @return the params for the given transition criteria name\n   */\n  getTransitionCriteriaParamsByName(name) {\n    let params = [];\n    if (name != null) {\n      for (let singleTransitionCriteria of this.transitionCriterias) {\n        if (singleTransitionCriteria != null &&\n            singleTransitionCriteria.value == name) {\n          /*\n           * we have found the removal criteria we are looking for\n           * so we will get its params\n           */\n          params = singleTransitionCriteria.params;\n          break;\n        }\n      }\n    }\n    return params;\n  }\n\n  /**\n   * Get the choices of a component\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @return the choices from the component\n   */\n  getChoicesByNodeIdAndComponentId(nodeId, componentId) {\n    return this.ProjectService.getChoicesByNodeIdAndComponentId(nodeId, componentId);\n  }\n\n  /**\n   * Get the choice type of a component\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @return the choice type e.g. 'radio' or 'checkbox'\n   */\n  getChoiceTypeByNodeIdAndComponentId(nodeId, componentId) {\n    let choiceType = null;\n    let component = this.ProjectService\n        .getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null && component.choiceType != null) {\n      choiceType = component.choiceType;\n    }\n    return choiceType;\n  }\n\n  /**\n   * Get the next available constraint id for a node\n   * @param nodeId the node id\n   * @return a constraint id that hasn't been used yet\n   */\n  getNewNodeConstraintId(nodeId) {\n    let newNodeConstraintId = null;\n    let usedConstraintIds = [];\n    let node = this.ProjectService.getNodeById(nodeId);\n    if (node != null && node.constraints != null) {\n      let nodeConstraints = node.constraints;\n      for (let constraint of nodeConstraints) {\n        if (constraint != null) {\n          let constraintId = constraint.id;\n          usedConstraintIds.push(constraintId);\n        }\n      }\n    }\n\n    // counter used for finding a constraint id that hasn't been used yet\n    let constraintCounter = 1;\n\n    // loop until we have found an unused constraint id\n    while (newNodeConstraintId == null) {\n      // create a potential constraint id\n      let potentialNewNodeConstraintId = nodeId + 'Constraint' + constraintCounter;\n\n      // check if the constraint id has been used already\n      if (usedConstraintIds.indexOf(potentialNewNodeConstraintId) == -1) {\n        // the constraint id has not been used so we can use it\n        newNodeConstraintId = potentialNewNodeConstraintId;\n      } else {\n        /*\n         * the constraint id has been used so we will increment the\n         * counter to try another contraint id\n         */\n        constraintCounter++;\n      }\n    }\n    return newNodeConstraintId;\n  }\n\n  /**\n   * Add a new constraint.\n   * @return The id of the DOM element associated with the constraint.\n   */\n  addConstraint() {\n    // get a new constraint id\n    let newNodeConstraintId = this.getNewNodeConstraintId(this.nodeId);\n\n    // create the constraint object\n    let constraint = {\n      \"id\": newNodeConstraintId,\n      \"action\": '',\n      \"targetId\": this.nodeId,\n      \"removalConditional\": 'any',\n      \"removalCriteria\": []\n    };\n\n    // create a removal criteria\n    let removalCriteria = {\n      \"name\": '',\n      \"params\": {}\n    };\n\n    // add the removal criteria to the constraint\n    constraint.removalCriteria.push(removalCriteria);\n\n    // create the constraints array if it does not exist\n    if (this.node.constraints == null) {\n      this.node.constraints = [];\n    }\n    this.node.constraints.push(constraint);\n    this.ProjectService.saveProject();\n\n    return newNodeConstraintId;\n  }\n\n  /**\n   * Add a new constraint and then scroll to the bottom of the screen because\n   * that's where the new constraint will appear.\n   */\n  addConstraintAndScrollToBottom() {\n    let newNodeConstraintId = this.addConstraint();\n    this.$timeout(() => {\n      this.$rootScope.$broadcast('scrollToBottom');\n      this.UtilService.temporarilyHighlightElement(newNodeConstraintId);\n    });\n  }\n\n  /**\n   * Delete a constraint\n   * @param constraintIndex delete the constraint at the index\n   */\n  deleteConstraint(constraintIndex) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConstraint'));\n    if (answer) {\n      if (constraintIndex != null) {\n        let node = this.ProjectService.getNodeById(this.nodeId);\n        if (node != null) {\n          let constraints = node.constraints;\n          if (constraints != null) {\n            // remove the constraint at the given index\n            constraints.splice(constraintIndex, 1);\n          }\n        }\n      }\n      this.ProjectService.saveProject();\n    }\n  }\n\n  /**\n   * Add a removal criteria\n   * @param constraint add the removal criteria to this constraint\n   */\n  addRemovalCriteria(constraint) {\n    if (constraint != null) {\n      // create the removal criteria\n      let removalCriteria = {\n        \"name\": '',\n        \"params\": {}\n      };\n      // add the removal criteria to the constraint\n      constraint.removalCriteria.push(removalCriteria);\n    }\n    this.ProjectService.saveProject();\n  }\n\n  /**\n   * Delete a removal criteria from a constraint\n   * @param constraint remove the removal criteria from this constraint\n   * @param removalCriteriaIndex the index of the removal criteria to remove\n   */\n  deleteRemovalCriteria(constraint, removalCriteriaIndex) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisRemovalCriteria'));\n    if (answer) {\n      if (constraint != null) {\n        // get all the removal criteria\n        let removalCriteria = constraint.removalCriteria;\n        if (removalCriteria != null) {\n          // remove the single removal criteria\n          removalCriteria.splice(removalCriteriaIndex, 1);\n        }\n      }\n      this.ProjectService.saveProject();\n    }\n  }\n\n  /**\n   * Delete a transition criteria from a transition\n   * @param constraint remove the removal criteria from this constraint\n   * @param removalCriteriaIndex the index of the removal criteria to remove\n   */\n  deleteTransitionCriteria(transition, transitionCriteriaIndex) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisRequirement'));\n    if (answer) {\n      if (transition != null) {\n        // get all the transition criteria\n        let transitionCriterias = transition.criteria;\n        if (transitionCriterias != null) {\n          // remove the single transition criteria\n          transitionCriterias.splice(transitionCriteriaIndex, 1);\n        }\n      }\n      this.ProjectService.saveProject();\n    }\n  }\n\n  /**\n   * A removal criteria name has changed so we will clear the params so\n   * that the params from the previous removal criteria name do not persist\n   * TODO refactor too many nesting\n   */\n  removalCriteriaNameChanged(criteria) {\n    if (criteria != null) {\n      // clear the params\n      criteria.params = {};\n\n      // get the params for the given criteria name\n      let params = this.getRemovalCriteriaParamsByName(criteria.name);\n      if (params != null) {\n        for (let paramObject of params) {\n          if (paramObject != null) {\n            let value = paramObject.value;\n\n            // initialize the param value\n            criteria.params[value] = '';\n\n            if (value == 'nodeId') {\n              // default the node id param to this node\n              criteria.params[value] = this.nodeId;\n            }\n          }\n        }\n      }\n    }\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * A removal criteria name has changed so we will clear the params so\n   * that the params from the previous removal criteria name do not persist.\n   * @param transitionCriteria the transition criteria object\n   */\n  transitionCriteriaNameChanged(transitionCriteria) {\n    if (transitionCriteria != null) {\n      let nodeId = null;\n      let componentId = null;\n\n      if (transitionCriteria.params != null) {\n        // remember the node id and component id\n        nodeId = transitionCriteria.params.nodeId;\n        componentId = transitionCriteria.params.componentId;\n      }\n\n      // clear the params\n      transitionCriteria.params = {};\n\n      if (nodeId != null) {\n        // set the node id back into the params\n        transitionCriteria.params.nodeId = nodeId;\n      }\n\n      if (componentId != null) {\n        // set the component id back into the params\n        transitionCriteria.params.componentId = componentId;\n      }\n    }\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * A button to author a specific view of the node was clicked\n   * @param view the view name\n   */\n  nodeAuthoringViewButtonClicked(view) {\n    if (view == 'addComponent') {\n      // toggle the add component view and hide all the other views\n      this.showCreateComponent = !this.showCreateComponent;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = true;\n      this.showComponents = true;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'generalAdvanced') {\n      // toggle the edit transitions view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = !this.showGeneralAdvanced;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubricButton = false;\n      this.showCreateBranch = false;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'editTransitions') {\n      // toggle the edit transitions view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = !this.showEditTransitions;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubricButton = false;\n      this.showCreateBranch = false;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'editConstraints') {\n      // toggle the edit constraints view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = !this.showConstraints;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'editButtons') {\n      // toggle the edit buttons view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = !this.showEditButtons;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'editRubric') {\n      // toggle the edit buttons view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = !this.showRubric;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'createBranch') {\n      // toggle the edit buttons view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = !this.showCreateBranch;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'previousNode') {\n      // hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n      let prevNodeId = this.ProjectService.getPreviousNodeId(this.nodeId);\n      if (prevNodeId != null) {\n        // there is a previous node id so we will go to it\n        this.$state.go('root.project.node', {projectId: this.projectId, nodeId:prevNodeId});\n      } else {\n        // there is no previous node id so we will display a message\n        let thereIsNoPreviousStep = this.$translate('thereIsNoPreviousStep');\n        alert(thereIsNoPreviousStep);\n      }\n    } else if (view == 'nextNode') {\n      // hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n      let nextNodeId = this.ProjectService.getNextNodeId(this.nodeId);\n      if (nextNodeId != null) {\n        // there is a next node id so we will go to it\n        this.$state.go('root.project.node', {projectId: this.projectId, nodeId:nextNodeId});\n      } else {\n        // there is no next node id so we will display a message\n        let thereIsNoNextStep = this.$translate('thereIsNoNextStep');\n        alert(thereIsNoNextStep);\n      }\n    } else if (view == 'advanced') {\n      // toggle the advanced view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = !this.showAdvanced;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'copy') {\n      // toggle the copy view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = true;\n      this.showComponents = true;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'move') {\n      // toggle the move view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = true;\n      this.showComponents = true;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'import') {\n      // toggle the import view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = !this.showImportView;\n      this.showStepButtons = false;\n      this.showComponents = true;\n      this.showJSON = false;\n      this.UtilService.hideJSONValidMessage();\n    } else if (view == 'showJSON') {\n      // toggle the import view and hide all the other views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      //this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = false;\n      this.showComponents = false;\n      if (this.showJSON) {\n        // we were showing the JSON view and the author now wants to hide it\n        if (!this.isJSONValid()) {\n          if (confirm(this.$translate('jsonInvalidErrorMessage'))) {\n            // the author wants to revert back to the last valid JSON\n            this.toggleJSONAuthoringView();\n            this.UtilService.hideJSONValidMessage();\n          }\n        } else {\n          this.toggleJSONAuthoringView();\n          this.UtilService.hideJSONValidMessage();\n        }\n      } else {\n        // we were not showing the JSON view and now the author wants to show it\n        this.toggleJSONAuthoringView();\n        this.authoringNodeContentJSONString = angular.toJson(this.node, 4);\n        this.UtilService.showJSONValidMessage();\n      }\n    } else {\n      // hide all the views\n      this.showCreateComponent = false;\n      this.showGeneralAdvanced = false;\n      this.showEditTransitions = false;\n      this.showConstraints = false;\n      this.showEditButtons = false;\n      this.showRubric = false;\n      this.showCreateBranch = false;\n      this.showAdvanced = false;\n      this.showImportView = false;\n      this.showStepButtons = true;\n      this.showComponents = true;\n      this.showJSON = false;\n    }\n  }\n\n  isJSONValid() {\n    try {\n      angular.fromJson(this.authoringNodeContentJSONString);\n      return true;\n    } catch(e) {\n      return false;\n    }\n  }\n\n  toggleJSONAuthoringView() {\n    this.showJSON = !this.showJSON;\n  }\n\n  /**\n   * The author has changed the number of branch paths\n   * TODO refactor long function\n   */\n  createBranchNumberOfBranchesChanged() {\n    if (this.createBranchNumberOfBranches == 0) {\n      // the author has set the number of branch paths to 0 which is not allowed\n      alert(this.$translate('errorYouCantHave0BranchPaths'));\n\n      // revert the number of branch paths value\n      this.createBranchNumberOfBranches = this.createBranchBranches.length;\n    } else if (this.createBranchNumberOfBranches < this.createBranchBranches.length) {\n      /*\n       * the author is reducing the number of branches so we want to\n       * confirm they want to do so\n       */\n      let answer = confirm(this.$translate('areYouSureYouWantToReduceTheNumberOfBranchesToX', {createBranchNumberOfBranches:this.createBranchNumberOfBranches}));\n\n      if (answer) {\n        if (this.createBranchNumberOfBranches == 1) {\n          /*\n           * the author has removed all the branch paths so we will\n           * remove the branch\n           */\n          this.removeBranch();\n        } else {\n          /*\n           * the author is reducing the number of branch paths but\n           * not removing all of them\n           */\n          for (let bp = 0; bp < this.createBranchBranches.length; bp++) {\n            if (bp >= this.createBranchNumberOfBranches) {\n              // this is a branch we want to remove\n              let branch = this.createBranchBranches[bp];\n              this.removeBranchPath(branch);\n\n              /*\n               * decrement the counter back one because we have\n               * just removed a branch path\n               */\n              bp--;\n            }\n          }\n        }\n      } else {\n        // they answered no so we will revert the number of branches value\n        this.createBranchNumberOfBranches = this.createBranchBranches.length;\n      }\n    } else if (this.createBranchNumberOfBranches > this.createBranchBranches.length) {\n      // the author is increasing the number of branches\n      if (this.createBranchCriterion == null) {\n        /*\n         * we will default the branching to be based on workgroup id\n         * since that is what our researchers use most often\n         */\n        this.createBranchCriterion = 'workgroupId';\n        this.createBranchCriterionChanged();\n      }\n\n      // loop for the number of branches and create new branches objects\n      for (let b = 0; b < this.createBranchNumberOfBranches; b++) {\n        if (b >= this.createBranchBranches.length) {\n          /*\n           * we do not have a branch object for this branch number so\n           * we will create it\n           */\n\n          // create the branch object\n          let branch = {};\n\n          // set the branch number\n          branch.number = b + 1;\n\n          /*\n           * set the mapping of all the ids to order for use when choosing which items are\n           * in the branch path\n           */\n          branch.items = this.UtilService.makeCopyOfJSONObject(this.ProjectService.idToOrder);\n\n          // add the branch to the array of branches\n          this.createBranchBranches.push(branch);\n\n          // create a transition to represent the branch\n          let transition = {};\n\n          if (this.createBranchCriterion == 'score') {\n            // the branch is based on score\n\n            // create a score criterion\n            let criterion = {\n              \"name\": this.createBranchCriterion,\n              \"params\": {\n                \"scores\": []\n              }\n            };\n\n            if (this.createBranchNodeId != null) {\n              // set the node for which to look for the score\n              criterion.params.nodeId = this.createBranchNodeId;\n            }\n\n            if (this.createBranchComponentId != null) {\n              // set the component for which to look for the score\n              criterion.params.componentId = this.createBranchComponentId;\n            }\n\n            transition.criteria = [criterion];\n          } else if (this.createBranchCriterion == 'choiceChosen') {\n            // the branch is based on choice chosen\n            let criterion = {};\n            criterion.name = this.createBranchCriterion;\n            criterion.params = {};\n            criterion.params.choiceIds = [];\n\n            if (this.createBranchNodeId != null) {\n              // set the node for which to look for the score\n              criterion.params.nodeId = this.createBranchNodeId;\n            }\n\n            if (this.createBranchComponentId != null) {\n              // set the component for which to look for the score\n              criterion.params.componentId = this.createBranchComponentId;\n            }\n\n            transition.criteria = [criterion];\n          } else if (this.createBranchCriterion == 'workgroupId') {\n            // workgroup id branching does not require a transition criterion\n          } else if (this.createBranchCriterion == 'random') {\n            // random branching does not require a transition criterion\n          }\n\n          // add the transition\n          this.node.transitionLogic.transitions.push(transition);\n\n          // save a reference to the transition in the branch\n          branch.transition = transition;\n        }\n      }\n    }\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The branch criterion has changed\n   */\n  createBranchCriterionChanged() {\n    if (this.createBranchCriterion != null) {\n      let nodeId = this.node.id;\n      if (this.createBranchCriterion == 'workgroupId') {\n        // the branch is based on workgroup id\n        this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', 'workgroupId');\n        this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', 'enterNode');\n        this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', false);\n        this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', 1);\n      } else if (this.createBranchCriterion == 'score') {\n        // the branch is based on score\n        this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', 'random');\n        this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', 'studentDataChanged');\n        this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', false);\n        this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', 1);\n      } else if (this.createBranchCriterion == 'choiceChosen') {\n        // the branch is based on choice chosen\n        this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', 'random');\n        this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', 'studentDataChanged');\n        this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', false);\n        this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', 1);\n      } else if (this.createBranchCriterion == 'random') {\n        // the branch is based on random assignment\n        this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', 'random');\n        this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', 'enterNode');\n        this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', false);\n        this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', 1);\n      }\n    }\n\n    /*\n     * update the transitions so that they have the necessary parameter\n     * fields for the given branch criterion\n     */\n    this.createBranchUpdateTransitions();\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The create branch node id has changed\n   */\n  createBranchNodeIdChanged() {\n    this.createBranchComponentId = null;\n    let selectedNode = this.ProjectService.getNodeById(this.createBranchNodeId);\n    if (selectedNode != null) {\n      let components = selectedNode.components;\n      if (components != null) {\n        if (components.length == 1) {\n          /*\n           * there is only one component in the node so we will\n           * automatically select it in the drop down\n           */\n          let component = components[0];\n          this.createBranchComponentId = component.id;\n        }\n      }\n    }\n\n    /*\n     * update the transitions so that they have the necessary parameter\n     * fields for the given branch criterion\n     */\n    this.createBranchUpdateTransitions();\n\n    // save the project\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The create branch component id has changed\n   */\n  createBranchComponentIdChanged() {\n\n    /*\n     * update the transitions so that they have the necessary parameter\n     * fields for the given branch criterion\n     */\n    this.createBranchUpdateTransitions();\n\n    // save the project\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * Update the transitions so that they have the necessary parameter\n   * fields for the given branch criterion\n   */\n  createBranchUpdateTransitions() {\n    for (let b = 0; b < this.createBranchBranches.length; b++) {\n      let branch = this.createBranchBranches[b];\n      if (branch != null) {\n        // get the transition corresponding to the branch\n        let transition = branch.transition;\n        if (transition != null) {\n          if (this.createBranchCriterion == 'choiceChosen') {\n            // we are branching based on choice chosen\n\n            // clear the criteria array\n            transition.criteria = [];\n\n            // create a new choice chosen criterion\n            let criterion = {\n              \"name\": 'choiceChosen',\n              \"params\": {\n                \"nodeId\": this.createBranchNodeId,\n                \"componentId\": this.createBranchComponentId,\n                \"choiceIds\": []\n              }\n            };\n\n            // add the criterion to the array of criteria\n            transition.criteria.push(criterion);\n\n            /*\n             * clear the choice id. we will set the choice id in\n             * the branch object when we call createBranchUpdateChoiceChosenIds()\n             */\n            branch.choiceId = null;\n\n            /*\n             * clear the scores since we don't need it in choice\n             * chosen branching\n             */\n            branch.scores = null;\n          } else if (this.createBranchCriterion == 'score') {\n            // we are branching based on score\n\n            // clear the criteria array\n            transition.criteria = [];\n\n            // create a new score criterion\n            let criterion = {\n              \"name\": 'score',\n              \"params\": {\n                \"nodeId\": this.createBranchNodeId,\n                \"componentId\": this.createBranchComponentId,\n                \"scores\": []\n              },\n            };\n\n            // re-use scores if available\n\n            // add the criterion to the array of criteria\n            transition.criteria.push(criterion);\n\n            /*\n             * clear the choice id since we don't need it in score\n             * branching\n             */\n            branch.choiceId = null;\n\n            // set the scores into the branch object\n            branch.scores = criterion.params.scores;\n          } else if (this.createBranchCriterion == 'workgroupId') {\n            // we are branching based on workgroup id\n\n            /*\n             * remove the criteria array since it is not used for\n             * branching based on workgroup id\n             */\n            delete transition['criteria'];\n\n            // clear the node id and component id\n            this.createBranchNodeId = null;\n            this.createBranchComponentId = null;\n\n            /*\n             * clear the choice id and scores fields since we don't\n             * need them in workgroup id branching\n             */\n            branch.choiceId = null;\n            branch.scores = null;\n          } else if (this.createBranchCriterion == 'random') {\n            // we are branching based on random assignment\n\n            /*\n             * remove the criteria array since it is not used for\n             * branching based on random assignment\n             */\n            delete transition['criteria'];\n\n            // clear the node id and component id\n            this.createBranchNodeId = null;\n            this.createBranchComponentId = null;\n\n            /*\n             * clear the choice id and scores fields since we don't\n             * need them in random branching\n             */\n            branch.choiceId = null;\n            branch.scores = null;\n          }\n        }\n      }\n    }\n\n    if (this.createBranchCriterion == 'choiceChosen') {\n      /*\n       * the branching is based on choice chosen so we will populate the\n       * choice ids\n       */\n      this.createBranchUpdateChoiceChosenIds();\n    }\n  }\n\n  /**\n   * Automatically populate the selected choices if the branch is based on\n   * choice chosen and the selected component is a multiple choice component\n   * TODO refactor too many nesting\n   */\n  createBranchUpdateChoiceChosenIds() {\n    let nodeId = this.createBranchNodeId;\n    let componentId = this.createBranchComponentId;\n    let component = this.ProjectService\n        .getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null) {\n      if (component.type == 'MultipleChoice') {\n        // populate the drop down with the choices\n        this.createBranchUpdateChoiceChosenIdsHelper(component);\n      }\n    }\n  }\n\n  /**\n   * We are creating a branch that is based on which choice the student chooses\n   * in a multiple choice component. We will populate the drop down with the\n   * choices.\n   * @param component we are branching based on the choice chosen in this\n   * component\n   */\n  createBranchUpdateChoiceChosenIdsHelper(component) {\n    let nodeId = this.createBranchNodeId;\n    let componentId = this.createBranchComponentId;\n\n    // get the choices from the component\n    let choices = component.choices;\n\n    if (choices != null) {\n\n      // loop through all the choices\n      for (let c = 0; c < choices.length; c++) {\n        let choice = choices[c];\n        if (choice != null) {\n\n          // get the fields of the choice\n          let id = choice.id;\n          let text = choice.text;\n          let feedback = choice.feedback;\n          let isCorrect = choice.isCorrect;\n\n          // get the branch that corresponds to the choice\n          let branch = this.createBranchBranches[c];\n\n          if (branch != null) {\n            // get the choice for this branch\n            branch.choiceId = id;\n\n            // make a copy of the choices from the component\n            branch.choices = this.UtilService.makeCopyOfJSONObject(choices);\n\n            // get the transition corresponding to the branch\n            let transition = branch.transition;\n\n            if (transition != null) {\n\n              /*\n               * get the first transition criterion. we will assume\n               * there is only one transition criterion\n               */\n              let criterion = transition.criteria[0];\n\n              if (criterion != null) {\n\n                // get the params\n                let params = criterion.params;\n\n                if (params != null) {\n\n                  // set the node id and component id\n                  params.nodeId = nodeId;\n                  params.componentId = componentId;\n\n                  if (this.createBranchCriterion == 'choiceChosen') {\n                    // set the choice id\n                    params.choiceIds = [];\n                    params.choiceIds.push(id);\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * A step was clicked in the create branch authoring view\n   * @param branch the branch path\n   * @param item the step that was clicked\n   * TODO refactor function too long\n   */\n  createBranchStepClicked(branch, item) {\n    // get all the steps in order\n    let orderedItems = this.$filter('orderBy')(this.$filter('toArray')(branch.items), 'order');\n\n    // an array that will hold the items that were checked\n    branch.checkedItemsInBranchPath = [];\n    let checkedItemsInBranchPath = branch.checkedItemsInBranchPath;\n\n    // an array that will hold the node ids that were checked\n    branch.nodeIdsInBranch = [];\n\n    // used to hold the previously checked node id\n    let previousCheckedNodeId = null;\n\n    // the node id after the node that was clicked\n    let nodeIdAfter = null;\n\n    /*\n     * loop through all the items in order and set the transitions so that\n     * the steps in a branch path transition to one after the other\n     */\n    for (var i = 0; i < orderedItems.length; i++) {\n      var orderedItem = orderedItems[i];\n      if (orderedItem != null && orderedItem.checked) {\n        if (previousCheckedNodeId != null) {\n          // make the previous node id point to the current item\n          let previousCheckedNode = this.ProjectService.getNodeById(previousCheckedNodeId);\n          if (previousCheckedNode != null) {\n            // get the transition logic\n            let transitionLogic = previousCheckedNode.transitionLogic;\n            if (transitionLogic != null) {\n              if (transitionLogic.transitions != null) {\n                // clear the transitions\n                transitionLogic.transitions = [];\n\n                // create a new transition object to the current item\n                let transition = {\n                  \"to\": orderedItem.$key\n                };\n                // add the transition\n                transitionLogic.transitions.push(transition);\n              }\n            }\n          }\n        }\n\n        // add the item to the checked items array\n        checkedItemsInBranchPath.push(orderedItem);\n\n        // add the node id to the array of node ids in the branch path\n        branch.nodeIdsInBranch.push(orderedItem.$key);\n\n        // remember the previously checked node id\n        previousCheckedNodeId = orderedItem.$key;\n      }\n\n      // get the previous ordered item (checked or unchecked)\n      let previousOrderedItem = orderedItems[i - 1];\n      if (previousOrderedItem != null) {\n        if (previousOrderedItem.$key == item.$key) {\n          /*\n           * the previous item was the node that was checked/unchecked\n           * so we will remember this item because it is the node\n           * that comes after the node that was checked/unchecked\n           */\n          nodeIdAfter = orderedItem.$key;\n        }\n      }\n    }\n\n    if (this.createBranchMergePointNodeId != null) {\n      /*\n       * the merge point is specified so we will make the last checked\n       * node in this branch path point to the merge point\n       */\n\n      /*\n       * this is the last node in the branch path so we will make it\n       * transition to the merge point\n       */\n      let node = this.ProjectService.getNodeById(previousCheckedNodeId);\n      if (node != null) {\n        let transitionLogic = node.transitionLogic;\n        if (transitionLogic != null) {\n          if (transitionLogic.transitions != null) {\n            // clear the transitions\n            transitionLogic.transitions = [];\n\n            // make a transition to the merge point\n            let transition = {};\n            transition.to = this.createBranchMergePointNodeId;\n\n            // add the transition\n            transitionLogic.transitions.push(transition);\n          }\n        }\n      }\n    }\n\n    // get the branch number\n    let branchNumber = branch.number;\n\n    // get the node id that was clicked\n    let nodeId = item.$key;\n\n    // get the transition that corresponds to the branch\n    let transition = this.node.transitionLogic.transitions[branchNumber - 1];\n\n    let firstNodeId = null;\n\n    /*\n     * update the branch point transition in case the first step in the\n     * branch path has changed\n     */\n    if (transition != null) {\n\n      if (checkedItemsInBranchPath.length == 0) {\n        // there are no steps in the path\n        transition.to = null;\n      } else {\n        // get the first step in the path\n        let firstCheckedItem = checkedItemsInBranchPath[0];\n\n        if (firstCheckedItem != null) {\n          // set the branch point transition to the first step in the path\n          firstNodeId = firstCheckedItem.$key;\n          transition.to = firstNodeId;\n        }\n      }\n    }\n\n    // get the node that was clicked\n    let node = this.ProjectService.getNodeById(nodeId);\n\n    if (node != null) {\n\n      // remove all branch path taken constraints from the node\n      this.ProjectService.removeBranchPathTakenNodeConstraints(nodeId);\n\n      if (item.checked) {\n        // the item was checked so we will add the branch path taken constraints to it\n\n        /*\n         * the branch path taken constraints will be from this node to\n         * the first node in the branch path\n         */\n        let fromNodeId = this.nodeId;\n        let toNodeId = firstNodeId;\n\n        // add the branch path taken constraints\n        this.ProjectService.addBranchPathTakenConstraints(nodeId, fromNodeId, toNodeId);\n      } else {\n        /*\n         * the item was unchecked so we will change its transition to\n         * point to the node that comes right after it\n         */\n        this.ProjectService.setTransition(nodeId, nodeIdAfter);\n      }\n    }\n\n    /*\n     * update the constraints of other steps in the branch path if necessary.\n     * loop through all theh checked items in the path\n     */\n    for (let item of checkedItemsInBranchPath) {\n      let itemNodeId = item.$key;\n\n      // remove all branch path taken constraints from the node\n      this.ProjectService.removeBranchPathTakenNodeConstraints(itemNodeId);\n\n      /*\n       * the branch path taken constraints will be from this node to\n       * the first node in the branch path\n       */\n      let fromNodeId = this.nodeId;\n      let toNodeId = firstNodeId;\n\n      // add the branch path taken constraints\n      this.ProjectService.addBranchPathTakenConstraints(itemNodeId, fromNodeId, toNodeId);\n    }\n\n    /*\n     * update the node numbers now that a step has been added to a branch path\n     * e.g. if this is a branching step that is called\n     * 1.5 B View the Potential Energy\n     * then the node number is 1.5 B\n     */\n    this.ProjectService.calculateNodeNumbers();\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The score for a path has changed in the branch authoring\n   * @param branch the branch for which the score has changed\n   * TODO refactor too many nesting\n   */\n  createBranchScoreChanged(branch) {\n    if (branch != null) {\n      let transition = branch.transition;\n      if (transition != null) {\n        let scores = branch.scores;\n        if (scores != null) {\n          let criteria = transition.criteria;\n          if (criteria != null) {\n            // get the first criteria. we will assume there is only one criteria\n            let criterion = criteria[0];\n            if (criterion != null) {\n              // get the params of the criterion\n              let params = criterion.params;\n              if (params != null) {\n                // update the scores into the params\n                params.scores = scores;\n              }\n            }\n          }\n        }\n      }\n    }\n\n    // save the project\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * The merge point has changed in the branch authoring\n   * TODO refactor too many nesting\n   */\n  createBranchMergePointNodeIdChanged() {\n    // get the merge point node id\n    let createBranchMergePointNodeId = this.createBranchMergePointNodeId;\n    let branches = this.createBranchBranches;\n    for (let branch of branches) {\n      if (branch != null) {\n        // get the node ids in the branch path\n        let nodeIdsInBranch = branch.nodeIdsInBranch;\n        if (nodeIdsInBranch != null && nodeIdsInBranch.length > 0) {\n          // get the last node id in the branch path\n          let lastNodeIdInBranchPath = nodeIdsInBranch[nodeIdsInBranch.length - 1];\n          if (lastNodeIdInBranchPath != null) {\n            // get the last node in the branch path\n            let lastNodeInBranchPath =\n                this.ProjectService.getNodeById(lastNodeIdInBranchPath);\n            if (lastNodeInBranchPath != null) {\n              // get the transition logic of the last node\n              let transitionLogic = lastNodeInBranchPath.transitionLogic;\n              if (transitionLogic != null) {\n                if (transitionLogic.transitions != null) {\n                  // clear the transitions\n                  transitionLogic.transitions = [];\n\n                  // make a new transition to the merge point\n                  let transition = {\n                    \"to\": createBranchMergePointNodeId\n                  };\n                  // add the transition\n                  transitionLogic.transitions.push(transition);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    /*\n     * calculate the node numbers\n     * e.g. if the step is called\n     * 1.5 View the Potential Energy\n     * then the node number is 1.5\n     */\n    this.ProjectService.calculateNodeNumbers();\n\n    // save the project\n    let parseProject = true;\n    this.authoringViewNodeChanged(parseProject);\n  }\n\n  /**\n   * Remove the branch after confirming with the user\n   */\n  removeBranchButtonClicked() {\n    if (confirm(this.$translate('areYouSureYouWantToRemoveTheBranch'))) {\n      this.removeBranch();\n    }\n  }\n\n  /**\n   * Remove the branch from the step by removing all the branch paths\n   */\n  removeBranch() {\n    for (let bp = 0; bp < this.createBranchBranches.length; bp++) {\n      // remove a branch path\n      let branchPath = this.createBranchBranches[bp];\n      this.removeBranchPath(branchPath);\n\n      /*\n       * shift the counter back one because we have just removed a branch\n       * path\n       */\n      bp--;\n    }\n\n    // get the node id of this node (which is the branch point)\n    let nodeId = this.node.id;\n\n    // get the node id that comes after this node\n    let nodeIdAfter = this.ProjectService.getNodeIdAfter(nodeId);\n\n    /*\n     * update the transition of this step to point to the next step\n     * in the project. this may be different than the next step\n     * if it was still the branch point.\n     */\n    this.ProjectService.setTransition(nodeId, nodeIdAfter);\n\n    // clear the transition logic fields\n    this.ProjectService.setTransitionLogicField(nodeId, 'howToChooseAmongAvailablePaths', null);\n    this.ProjectService.setTransitionLogicField(nodeId, 'whenToChoosePath', null);\n    this.ProjectService.setTransitionLogicField(nodeId, 'canChangePath', null);\n    this.ProjectService.setTransitionLogicField(nodeId, 'maxPathsVisitable', null);\n\n    // clear the branch authoring fields\n    this.createBranchNumberOfBranches = 1;\n    this.createBranchCriterion = null;\n    this.createBranchNodeId = null;\n    this.createBranchComponentId = null;\n    this.createBranchMergePointNodeId = null;\n\n    /*\n     * branch paths are determined by the transitions. since there is now\n     * just one transition, we will create a single branch object to\n     * represent it.\n     */\n\n    // create a branch object to hold all the related information for that branch\n    let branch = {};\n\n    // set the branch number for display purposes\n    branch.number = 1;\n\n    /*\n     * set the mapping of all the ids to order for use when choosing which items are\n     * in the branch path\n     */\n    branch.items = this.UtilService.makeCopyOfJSONObject(this.ProjectService.idToOrder);\n\n    // an array that will hold all the checked items in the branch path\n    branch.checkedItemsInBranchPath = [];\n\n    let transition = null;\n\n    // get the transition from the node\n    let transitions = this.ProjectService.getTransitionsByFromNodeId(nodeId);\n\n    if (transitions != null && transitions.length > 0) {\n      transition = transitions[0];\n    }\n\n    // set the transition into the branch so we can access it easily later\n    branch.transition = transition;\n\n    // add the branch to the array of branches\n    this.createBranchBranches.push(branch);\n\n    /*\n     * calculate the node numbers\n     * e.g. if the step is called\n     * 1.5 View the Potential Energy\n     * then the node number is 1.5\n     */\n    this.ProjectService.calculateNodeNumbers();\n\n    // save the project\n    let parseProject = true;\n    this.authoringViewNodeChanged(parseProject);\n  }\n\n  /**\n   * Remove a branch path by removing all the branch path taken constraints\n   * from the steps in the branch path, resetting the transitions in the\n   * steps in the branch path, and removing the transition corresponding to\n   * the branch path in this branch point node.\n   * @param branch the branch object\n   */\n  removeBranchPath(branch) {\n    if (branch != null) {\n      // get the checked items in the branch path\n      let checkedItemsInBranchPath = branch.checkedItemsInBranchPath;\n      if (checkedItemsInBranchPath != null) {\n        for (let checkedItem of checkedItemsInBranchPath) {\n          if (checkedItem != null) {\n            // get the node id of the checked item\n            let nodeId = checkedItem.$key;\n\n            // remove the branchPathTaken constraints from the step\n            this.ProjectService.removeBranchPathTakenNodeConstraints(nodeId);\n\n            /*\n             * update the transition of the step to point to the next step\n             * in the project. this may be different than the next step\n             * if it was still in the branch path.\n             */\n            let nodeIdAfter = this.ProjectService.getNodeIdAfter(nodeId);\n            this.ProjectService.setTransition(nodeId, nodeIdAfter);\n          }\n        }\n      }\n      // get the index of the branch path\n      let branchPathIndex = this.createBranchBranches.indexOf(branch);\n\n      // remove the branch path\n      this.createBranchBranches.splice(branchPathIndex, 1);\n\n      // remove the transition that corresponds to the branch path\n      this.node.transitionLogic.transitions.splice(branchPathIndex, 1);\n    }\n  }\n\n  /**\n   * The author has changed the step rubric\n   */\n  summernoteRubricHTMLChanged() {\n    // get the summernote rubric html\n    let html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the step rubric\n    this.node.rubric = html;\n\n    // save the project\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * Show the component authoring views\n   */\n  showComponentAuthoring() {\n    this.showComponentAuthoringViews = true;\n  }\n\n  /**\n   * Hide the component authoring views so that the auther only sees\n   * the component numbers and component names\n   */\n  hideComponentAuthoring() {\n    this.showComponentAuthoringViews = false;\n  }\n\n  /**\n   * Show the insert buttons. This is used when choosing where to insert a\n   * component.\n   */\n  turnOnInsertComponentMode() {\n    this.insertComponentMode = true;\n  }\n\n  /**\n   * Hide the insert buttons.\n   */\n  turnOffInsertComponentMode() {\n    this.insertComponentMode = false;\n  }\n\n  /**\n   * Turn on the add component mode\n   */\n  turnOnAddComponentMode() {\n    this.addComponentMode = true;\n  }\n\n  /**\n   * Turn off the add component mode\n   */\n  turnOffAddComponentMode() {\n    this.addComponentMode = false;\n  }\n\n  /**\n   * Turn on the move component mode\n   */\n  turnOnMoveComponentMode() {\n    this.moveComponentMode = true;\n  }\n\n  /**\n   * Turn off the move component mode\n   */\n  turnOffMoveComponentMode() {\n    this.moveComponentMode = false;\n  }\n\n  /**\n   * Turn on the copy component mode\n   */\n  turnOnCopyComponentMode() {\n    this.copyComponentMode = true;\n  }\n\n  /**\n   * Turn off the copy component mode\n   */\n  turnOffCopyComponentMode() {\n    this.copyComponentMode = false;\n  }\n\n  /**\n   * Turn on the import component mode\n   */\n  turnOnImportComponentMode() {\n    this.importComponentMode = true;\n  }\n\n  /**\n   * Turn off the import component mode\n   */\n  turnOffImportComponentMode() {\n    this.importComponentMode = false;\n  }\n\n  /**\n   * Get the components that have been selected\n   * @return an array of component ids that have been selected\n   */\n  getSelectedComponentIds() {\n    let selectedComponents = [];\n    if (this.components != null) {\n      for (let component of this.components) {\n        if (component != null && component.id != null) {\n          // see if the component is checked\n          let checked = this.componentsToChecked[component.id];\n          if (checked) {\n            selectedComponents.push(component.id);\n          }\n        }\n      }\n    }\n    return selectedComponents;\n  }\n\n  /**\n   * Uncheck all the components\n   */\n  clearComponentsToChecked() {\n    /*\n     * clear the components to checked mappings so that all the component\n     * checkboxes are no longer checked\n     */\n    this.componentsToChecked = {};\n  }\n\n  /**\n   * Get the component numbers and component types that have been selected\n   * @return an array of strings\n   * example\n   * [\n   *   \"1. OpenResponse\",\n   *   \"3. MultipleChoice\"\n   * ]\n   */\n  getSelectedComponentNumbersAndTypes(componentIds) {\n    let selectedComponents = [];\n    if (this.components != null) {\n      for (let c = 0; c < this.components.length; c++) {\n        let component = this.components[c];\n        if (component != null && component.id != null) {\n          // see if the component is checked\n          let checked = this.componentsToChecked[component.id];\n          if (checked) {\n            // get the component number and type example \"1. OpenResponse\"\n            let componentNumberAndType = (c + 1) + '. ' + component.type;\n\n            // the component is checked\n            selectedComponents.push(componentNumberAndType);\n          }\n        }\n      }\n    }\n    return selectedComponents;\n  }\n\n  /**\n   * The import button was clicked to turn on the import view\n   */\n  importButtonClicked() {\n    // clear all the import project values\n    this.importProjectIdToOrder = {};\n    this.importProjectItems = [];\n    this.importMyProjectId = null;\n    this.importLibraryProjectId = null;\n    this.importProjectId = null;\n    this.importProject = null;\n\n    // hide the other views\n    this.nodeAuthoringViewButtonClicked('import');\n\n    if (this.showImportView) {\n      // turn on import mode\n      this.turnOnImportComponentMode();\n\n      if (this.myProjectsList == null) {\n        // populate the authorable projects drop down\n        this.myProjectsList = this.ConfigService.getAuthorableProjects();\n      }\n\n      if (this.libraryProjectsList == null) {\n        // populate the library projects drop down\n        this.ConfigService.getLibraryProjects().then((libraryProjectsList) => {\n          this.libraryProjectsList = libraryProjectsList;\n        });\n      }\n    }\n  }\n\n  /**\n   * The move component button was clicked\n   */\n  moveButtonClicked() {\n    if (this.getSelectedComponentIds().length == 0) {\n      alert(this.$translate('pleaseSelectAComponentToMoveAndThenClickTheMoveButtonAgain'));\n    } else {\n      // hide the other views\n      this.nodeAuthoringViewButtonClicked('move');\n\n      // turn off add component mode\n      this.turnOffAddComponentMode();\n\n      // turn on the move component mode\n      this.turnOnMoveComponentMode();\n\n      // turn on the insert component mode\n      this.turnOnInsertComponentMode()\n\n      // hide the component authoring\n      this.hideComponentAuthoring();\n    }\n  }\n\n  /**\n   * The copy component button was clicked\n   */\n  copyButtonClicked() {\n    if (this.getSelectedComponentIds().length == 0) {\n      alert(this.$translate('pleaseSelectAComponentToCopyAndThenClickTheCopyButtonAgain'));\n    } else {\n      // hide the other views\n      this.nodeAuthoringViewButtonClicked('copy');\n\n      // turn on the move component mode\n      this.turnOnCopyComponentMode();\n\n      // turn on the insert component mode\n      this.turnOnInsertComponentMode();\n\n      // hide the component authoring views\n      this.hideComponentAuthoring();\n    }\n  }\n\n  /**\n   * The delete button was clicked\n   * TODO refactor too many nesting\n   */\n  deleteButtonClicked() {\n    if (this.getSelectedComponentIds().length == 0) {\n      alert(this.$translate('pleaseSelectAComponentToDeleteAndThenClickTheDeleteButtonAgain'));\n    } else {\n      this.scrollToTopOfPage();\n\n      /*\n       * hide all the component authoring so that the author only sees the\n       * component numbers and component types\n       */\n      this.hideComponentAuthoring();\n\n      /*\n       * Use a timeout to allow the effects of hideComponentAuthoring() to\n       * take effect. If we don't use a timeout, the user won't see any change\n       * in the UI.\n       */\n      this.$timeout(() => {\n        let confirmMessage = '';\n\n        // get the selected component numbers and types\n        let selectedComponentNumbersAndTypes = this.getSelectedComponentNumbersAndTypes();\n\n        if (selectedComponentNumbersAndTypes.length == 1) {\n          // there is one selected component\n          confirmMessage = this.$translate('areYouSureYouWantToDeleteThisComponent');\n        } else if (selectedComponentNumbersAndTypes.length > 1) {\n          // there are multiple selected components\n          confirmMessage = this.$translate('areYouSureYouWantToDeleteTheseComponents');\n        }\n\n        // loop through all the selected components\n        for (let c = 0; c < selectedComponentNumbersAndTypes.length; c++) {\n\n          // get a component number and type\n          let selectedComponentNumberAndType = selectedComponentNumbersAndTypes[c];\n\n          // show the component number and type in the message\n          confirmMessage += '\\n' + selectedComponentNumberAndType;\n        }\n\n        // ask the user if they are sure they want to delete\n        if (confirm(confirmMessage)) {\n          let selectedComponents = this.getSelectedComponentIds();\n\n          // data saved in the component deleted event\n          let data = {\n            \"componentsDeleted\": this.getComponentObjectsForEventData(selectedComponents)\n          };\n\n          /*\n           * loop through all the selected component ids and delete the\n           * components\n           */\n          for (let componentId of selectedComponents) {\n            this.ProjectService.deleteComponent(this.nodeId, componentId);\n          }\n\n          this.saveEvent('componentDeleted', 'Authoring', data);\n\n          // check if we need to show the node save or node submit buttons\n          this.checkIfNeedToShowNodeSaveOrNodeSubmitButtons();\n\n          this.ProjectService.saveProject();\n        } else {\n          // uncheck the component check boxes\n          this.clearComponentsToChecked();\n        }\n\n        /*\n         * Wait a small amount of time before returning the UI back to the\n         * normal view. This allows the author to see the component number\n         * and type view a little longer so that they can see the change\n         * they just made before we switch back to the normal view.\n         */\n        this.$timeout(() => {\n          // turn off the insert component mode\n          this.turnOffInsertComponentMode();\n\n          // uncheck the component check boxes\n          this.clearComponentsToChecked();\n\n          // show the component authoring\n          this.showComponentAuthoring();\n        }, 2000);\n      });\n    }\n  }\n\n  /**\n   * The cancel insert button was clicked\n   */\n  cancelInsertClicked() {\n    // hide all the authoring views\n    this.nodeAuthoringViewButtonClicked();\n\n    this.turnOffAddComponentMode();\n    this.turnOffMoveComponentMode();\n    this.turnOffInsertComponentMode();\n    this.clearComponentsToChecked();\n    this.showComponentAuthoring();\n  }\n\n  /**\n   * Check if we need to show the node save or node submit buttons\n   */\n  checkIfNeedToShowNodeSaveOrNodeSubmitButtons() {\n    if (this.ProjectService.doesAnyComponentShowSubmitButton(this.nodeId)) {\n      /*\n       * there is a component in this step that is showing their\n       * submit button\n       */\n    } else {\n      /*\n       * there is no component in this step that is showing their\n       * submit button\n       */\n\n      if (this.ProjectService.doesAnyComponentHaveWork(this.nodeId)) {\n        /*\n         * there is a component that generates work so we will show\n         * the step save button\n         */\n        this.node.showSaveButton = true;\n        this.node.showSubmitButton = false;\n\n        // hide the save button in all the components\n        this.hideAllComponentSaveButtons();\n      } else {\n        /*\n         * there are no components in the step that generates work\n         * so we will not show the step save button\n         */\n        this.node.showSaveButton = false;\n        this.node.showSubmitButton = false;\n      }\n    }\n  }\n\n  /**\n   * Insert the component so it becomes the first component in the step\n   */\n  insertComponentAsFirst() {\n    if (this.addComponentMode) {\n      this.handleAddComponent();\n    } else if (this.moveComponentMode) {\n      this.handleMoveComponent();\n    } else if (this.copyComponentMode) {\n      this.handleCopyComponent();\n    } else if (this.importComponentMode) {\n      this.handleImportComponent();\n    }\n  }\n\n  /**\n   * Insert the component after the given component id.\n   * @param componentId insert the component after this given component id\n   */\n  insertComponentAfter(componentId) {\n    if (this.addComponentMode) {\n      this.handleAddComponent(componentId);\n    } else if (this.moveComponentMode) {\n      this.handleMoveComponent(componentId);\n    } else if (this.copyComponentMode) {\n      this.handleCopyComponent(componentId);\n    } else if (this.importComponentMode) {\n      this.handleImportComponent(componentId);\n    }\n  }\n\n  /**\n   * Add components to this step.\n   * @param componentId (optional) Add the components after this component id.\n   * If the componentId is not provided, we will put the components at the\n   * beginning of the step.\n   */\n  handleAddComponent(componentId) {\n    let newComponents = [];\n    // create a component and add it to this node\n    let newComponent = this.ProjectService\n        .createComponent(this.nodeId, this.selectedComponent, componentId);\n\n    let data = {\n      \"componentId\": newComponent.id,\n      \"componentType\": newComponent.type\n    };\n    this.saveEvent('componentCreated', 'Authoring', data);\n    newComponents.push(newComponent);\n    this.turnOffAddComponentMode();\n    this.ProjectService.saveProject();\n    this.highlightNewComponentsAndThenShowComponentAuthoring(newComponents);\n  }\n\n  /**\n   * Move components in this step.\n   * @param componentId (optional) Put the moved components after this component\n   * id. If the componentId is not provided, we will put the components at the\n   * beginning of the step.\n   */\n  handleMoveComponent(componentId) {\n    let newComponents = [];\n    let selectedComponentIds = this.getSelectedComponentIds();\n    if (selectedComponentIds != null && selectedComponentIds.indexOf(componentId) != -1) {\n      /*\n       * the author is trying to move a component and place it after\n       * itself which we will not allow\n       */\n      if (selectedComponentIds.length == 1) {\n        alert(this.$translate('youAreNotAllowedToInsertTheSelectedItemAfterItself'));\n      } else if (selectedComponentIds.length > 1) {\n        alert(this.$translate('youAreNotAllowedToInsertTheSelectedItemsAfterItself'));\n      }\n    } else {\n      // data saved in the component moved event\n      let data = {\n        \"componentsMoved\": this.getComponentObjectsForEventData(selectedComponentIds)\n      };\n\n      // move the components to their new location\n      newComponents = this.ProjectService\n          .moveComponent(this.nodeId, selectedComponentIds, componentId);\n\n      this.saveEvent('componentMoved', 'Authoring', data);\n      this.turnOffMoveComponentMode();\n      this.ProjectService.saveProject();\n      this.highlightNewComponentsAndThenShowComponentAuthoring(newComponents);\n    }\n  }\n\n  /**\n   * Copy components in this step.\n   * @param componentId (optional) Put the copied components after this\n   * component id. If the componentId is not provided, we will put the\n   * components at the beginning of the step.\n   */\n  handleCopyComponent(componentId) {\n    let newComponents = [];\n    let selectedComponentIds = this.getSelectedComponentIds();\n\n    // data saved in the component copied event\n    let data = {};\n    let componentsCopied = this.getComponentObjectsForEventData(selectedComponentIds);\n\n    // copy the components to their new location\n    newComponents = this.ProjectService.copyComponentAndInsert(this.nodeId, selectedComponentIds, componentId);\n\n    // get the information for all the components that were copied\n    for (let c = 0; c < componentsCopied.length; c++) {\n      let componentCopied = componentsCopied[c];\n      let newComponent = newComponents[c];\n\n      componentCopied.fromComponentId = componentCopied.componentId;\n      componentCopied.toComponentId = newComponent.id;\n      delete componentCopied.componentId;\n    }\n\n    data.componentsCopied = componentsCopied;\n    this.saveEvent('componentCopied', 'Authoring', data);\n    this.turnOffCopyComponentMode();\n    this.ProjectService.saveProject();\n    this.highlightNewComponentsAndThenShowComponentAuthoring(newComponents);\n  }\n\n  /**\n   * Import components into this step.\n   * @param componentId (optional) Put the imported components after this\n   * component id. If the componentId is not provided, we will put the\n   * components at the beginning of the step.\n   */\n  handleImportComponent(componentId) {\n    // import the selected components and insert them\n    this.importComponents(this.nodeId, componentId).then((newComponents) => {\n      this.turnOffImportComponentMode();\n      this.ProjectService.saveProject();\n      this.highlightNewComponentsAndThenShowComponentAuthoring(newComponents);\n\n      /*\n       * refresh the project assets in case any of the imported\n       * components also imported assets\n       */\n      this.ProjectAssetService.retrieveProjectAssets();\n    });\n  }\n\n  /**\n   * Temporarily highlight the new components and then show the component\n   * authoring views. Used to bring user's attention to new changes.\n   * @param newComponents an array of the new components we have just added\n   */\n  highlightNewComponentsAndThenShowComponentAuthoring(newComponents) {\n    // use a timeout to allow the components time to show up in the UI\n    this.$timeout(() => {\n      if (newComponents != null) {\n        for (let newComponent of newComponents) {\n          if (newComponent != null) {\n            this.UtilService.temporarilyHighlightElement(newComponent.id);\n          }\n        }\n      }\n\n      /*\n       * Wait a small amount of time before returning the UI back to the\n       * normal view. This allows the author to see the component number\n       * and type view a little longer so that they can see the change\n       * they just made before we switch back to the normal view.\n       */\n      this.$timeout(() => {\n        this.showComponentAuthoring();\n        this.turnOffInsertComponentMode();\n        this.nodeAuthoringViewButtonClicked();\n        this.clearComponentsToChecked();\n\n        /*\n         * use a timeout to wait for the UI to update and then scroll\n         * to the first new component\n         */\n        this.$timeout(() => {\n          if (newComponents != null && newComponents.length > 0) {\n            // get the UI element of the first new component\n            let componentElement = $('#' + newComponents[0].id);\n\n            if (componentElement != null) {\n              // scroll to the first new component that we've added\n              $('#content').animate({\n                scrollTop: componentElement.offset().top - 200\n              }, 1000);\n            }\n          }\n        }, 1000);\n      }, 1000);\n    });\n  }\n\n\n  /**\n   * The author has chosen an authorable project to import from\n   * @param importProjectId the project id to import from\n   */\n  showMyImportProject(importProjectId) {\n    // clear the select drop down for the library project\n    this.importLibraryProjectId = null;\n\n    this.showImportProject(importProjectId);\n  }\n\n  /**\n   * The author has chosen a library project to import from\n   * @param importProjectId the project id to import from\n   */\n  showLibraryImportProject(importProjectId) {\n    this.importMyProjectId = null;\n    this.showImportProject(importProjectId);\n  }\n\n  /**\n   * Show the project we want to import steps from\n   * @param importProjectId the import project id\n   */\n  showImportProject(importProjectId) {\n    this.importProjectId = importProjectId;\n\n    if (this.importProjectId == null) {\n      // clear all the import project values\n      this.importProjectIdToOrder = {};\n      this.importProjectItems = [];\n      this.importMyProjectId = null;\n      this.importLibraryProjectId = null;\n      this.importProjectId = null;\n      this.importProject = null;\n    } else {\n      // get the import project\n      this.ProjectService.retrieveProjectById(this.importProjectId)\n          .then((projectJSON) => {\n\n        // create the mapping of node id to order for the import project\n        this.importProjectIdToOrder = {};\n        this.importProject = projectJSON;\n\n        // calculate the node order of the import project\n        let result = this.ProjectService.getNodeOrderOfProject(this.importProject);\n        this.importProjectIdToOrder = result.idToOrder;\n        this.importProjectItems = result.nodes;\n      });\n    }\n  }\n\n  /**\n   * Import the selected steps\n   */\n  importComponentsButtonClicked() {\n    let selectedComponents = this.getSelectedComponentsToImport();\n    if (selectedComponents == null || selectedComponents.length == 0) {\n      // the author did not select any components to import\n      alert('Please select a component to import.');\n    } else {\n      /*\n       * hide the import view because we want to go back to the\n       * project view so that the author can choose where to place\n       * the new steps\n       */\n      this.showImportView = false;\n      this.turnOnInsertComponentMode();\n      this.hideComponentAuthoring();\n      this.scrollToTopOfPage();\n    }\n  }\n\n  /**\n   * Get the selected components to import\n   * @return an array of selected components\n   * TODO refactor too many nesting\n   */\n  getSelectedComponentsToImport() {\n    let selectedComponents = [];\n    for (let item of this.importProjectItems) {\n      if (item != null && item.node != null && item.node.components != null) {\n        let componentsInNode = item.node.components;\n        for (let component of componentsInNode) {\n          if (component != null && component.checked) {\n            /*\n             * this component is checked so we will add it to\n             * the array of components that we will import\n             */\n            selectedComponents.push(component);\n          }\n        }\n      }\n    }\n    return selectedComponents;\n  }\n\n  /**\n   * Get the components that were selected\n   * @param insertAfterComponentId (optional) Insert the components after this\n   * component id. If this is null, we will insert the components at the\n   * beginning of the step.\n   */\n  importComponents(nodeId, insertAfterComponentId) {\n    // data saved in the component imported event\n    let data = {\n      \"componentsImported\": this.getComponentObjectsForImportEventData()\n    };\n\n    let selectedComponents = this.getSelectedComponentsToImport();\n    for (let selectedComponent of selectedComponents) {\n      if (selectedComponent != null) {\n        // remove the checked field\n        delete selectedComponent.checked;\n      }\n    }\n\n    // insert the components into the project\n    return this.ProjectService.importComponents(selectedComponents,\n        this.importProjectId, nodeId, insertAfterComponentId)\n        .then((newComponents) => {\n      for (let c = 0; c < data.componentsImported.length; c++) {\n        let componentImported = data.componentsImported[c];\n        let newComponent = newComponents[c];\n        let newComponentId = newComponent.id;\n\n        /*\n        * set the toComponentId so the event knows what the new\n        * component id is\n        */\n        componentImported.toComponentId = newComponentId;\n      }\n\n      this.saveEvent('componentImported', 'Authoring', data);\n      return newComponents;\n    });\n  }\n\n  scrollToTopOfPage() {\n    this.$anchorScroll('top');\n  }\n\n  /**\n   * Preview the import project in a new tab\n   */\n  previewImportProject() {\n    if (this.importProject != null) {\n      window.open(this.importProject.previewProjectURL);\n    }\n  }\n\n  /**\n   * Preview the step in a new tab\n   * @param node\n   */\n  previewImportNode(node) {\n    if (node != null) {\n      let nodeId = node.id;\n      let previewProjectURL = this.importProject.previewProjectURL;\n      let previewStepURL  = previewProjectURL + '#/vle/' + nodeId;\n      window.open(previewStepURL);\n    }\n  }\n\n  /**\n   * Preview the component in a new tab\n   * @param node the node\n   * @param componentId the component id\n   */\n  previewImportComponent(node, componentId) {\n    if (node != null) {\n      let nodeId = node.id;\n      let previewProjectURL = this.importProject.previewProjectURL;\n      let previewStepURL  = previewProjectURL + '#/vle/' + nodeId + '/' + componentId;\n      window.open(previewStepURL);\n    }\n  }\n\n  /**\n   * We are in the create a new component mode and the user has clicked\n   * on a component type\n   * @param componentType the component type the author clicked\n   */\n  componentTypeClicked(componentType) {\n    this.selectedComponent = componentType;\n  }\n\n  /**\n   * We are in the create a new component mode and the user has clicked\n   * on the cancel button\n   */\n  cancelCreateComponentClicked() {\n    // hide all the authoring views\n    this.nodeAuthoringViewButtonClicked();\n\n    this.turnOffAddComponentMode();\n    this.turnOffMoveComponentMode();\n    this.turnOffInsertComponentMode()\n    this.showComponentAuthoring();\n  }\n\n  /**\n   * Get the component type label\n   * @param componentType the component type\n   * @return the component type label\n   * example\n   * \"Open Response\"\n   */\n  getComponentTypeLabel(componentType) {\n    return this.UtilService.getComponentTypeLabel(componentType);\n  }\n\n  /**\n   * The author has clicked the back button\n   */\n  backButtonClicked() {\n    if (this.showImportView || this.showRubric || this.showAdvanced) {\n      this.UtilService.hideJSONValidMessage();\n\n      // we are in the import view so we will go back to the node view\n      this.nodeAuthoringViewButtonClicked();\n\n      this.$state\n        .go('root.project.node', {projectId: this.projectId, nodeId: this.nodeId});\n    } else {\n      // we are in the node view so we will go back to the project view\n      this.close();\n    }\n  }\n\n  /**\n   * Save an Authoring Tool event\n   * @param eventName the name of the event\n   * @param category the category of the event\n   * example 'Navigation' or 'Authoring'\n   * @param data (optional) an object that contains more specific data about\n   * the event\n   */\n  saveEvent(eventName, category, data) {\n    let context = 'AuthoringTool';\n    let nodeId = this.nodeId;\n    let componentId = null;\n    let componentType = null;\n    if (data == null) {\n      data = {};\n    }\n    this.TeacherDataService.saveEvent(context, nodeId, componentId, componentType, category, eventName, data);\n  }\n\n  /**\n   * Get an array of objects that contain the component id and type\n   * @param componentIds an array of component ids\n   * @return an array of objects that contain the component id and type\n   * TODO refactor too many nesting\n   */\n  getComponentObjectsForEventData(componentIds) {\n    let componentObjects = [];\n    if (componentIds != null) {\n      for (let componentId of componentIds) {\n        if (componentId != null) {\n          let component = this.ProjectService\n              .getComponentByNodeIdAndComponentId(this.nodeId, componentId);\n\n          if (component != null) {\n            let tempComponent = {\n              \"componentId\": component.id,\n              \"type\": component.type\n            };\n            componentObjects.push(tempComponent);\n          }\n        }\n      }\n    }\n    return componentObjects;\n  }\n\n  /**\n   * Get an array of objects that contain the node id, component id and type\n   * @return an array of objects that contain the node id, component id and type\n   * TODO refactor too many nesting\n   */\n  getComponentObjectsForImportEventData() {\n    let componentObjects = [];\n    for (let item of this.importProjectItems) {\n      if (item != null && item.node != null && item.node.components != null) {\n        for (let component of item.node.components) {\n          if (component != null && component.checked) {\n            let tempComponent = {\n              \"fromProjectId\": parseInt(this.importProjectId),\n              \"fromNodeId\": item.node.id,\n              \"fromComponentId\": component.id,\n              \"type\": component.type\n            };\n\n            /*\n             * this component is checked so we will add it to\n             * the array of components that we will import\n             */\n            componentObjects.push(tempComponent);\n          }\n        }\n      }\n    }\n    return componentObjects;\n  }\n\n  /**\n   * Save the project JSON to the server if the JSON is valid.\n   */\n  autoSaveJSON() {\n    try {\n      // create the updated node object\n      let updatedNode = angular.fromJson(this.authoringNodeContentJSONString);\n\n      // set the updated node into the project\n      this.ProjectService.setNode(this.nodeId, updatedNode);\n\n      // set the updated node into this controller\n      this.node = updatedNode;\n\n      // set the components into this controller\n      this.components = this.ProjectService.getComponentsByNodeId(this.nodeId);\n\n      // set the current node\n      this.TeacherDataService.setCurrentNodeByNodeId(this.nodeId);\n\n      // update the branch authoring fields into the controller\n      this.populateBranchAuthoring();\n\n      // save the project\n      this.authoringViewNodeChanged().then(() => {\n        this.$rootScope.$broadcast('parseProject');\n      });\n      this.UtilService.showJSONValidMessage();\n    } catch(e) {\n      this.UtilService.showJSONInvalidMessage();\n    }\n  }\n\n  /**\n   * The advanced button was clicked on a component. We will broadcast an event\n   * so that the appropriate child component can display their advanced\n   * authoring options.\n   * @param componentId The component id whose advanced button was clicked.\n   */\n  componentAdvancedButtonClicked(componentId) {\n    this.$rootScope.$broadcast('componentAdvancedButtonClicked', { componentId: componentId });\n  }\n\n  /**\n   * A constraint removal criteria step has changed.\n   * @param criteria The removal criteria object.\n   */\n  authoringViewConstraintRemovalCriteriaNodeIdChanged(criteria) {\n    criteria.params.componentId = '';\n    this.authoringViewNodeChanged();\n  }\n\n  /**\n   * A constraint removal criteria component has changed.\n   * @param criteria The removal criteria object.\n   */\n  authoringViewConstraintRemovalCriteriaComponentIdChanged(criteria) {\n    this.authoringViewNodeChanged();\n  }\n}\n\nNodeAuthoringController.$inject = [\n    '$anchorScroll',\n    '$filter',\n    '$injector',\n    '$location',\n    '$mdDialog',\n    '$rootScope',\n    '$scope',\n    '$state',\n    '$stateParams',\n    '$timeout',\n    'ConfigService',\n    'NodeService',\n    'ProjectAssetService',\n    'ProjectService',\n    'TeacherDataService',\n    'UtilService'\n];\n\nexport default NodeAuthoringController;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/authoringTool/project/project.html b/src/main/webapp/wise5/authoringTool/project/project.html
index 454b050555..e83830a03e 100644
--- a/src/main/webapp/wise5/authoringTool/project/project.html
+++ b/src/main/webapp/wise5/authoringTool/project/project.html
@@ -394,8 +394,8 @@ <h5 translate="editProjectJSON"></h5>
               <md-input-container style='width: 100%;'>
                 <textarea ng-model='projectController.projectJSONString'
                       style='width: 90%; border: 1px solid black;'
-                      ng-change='projectController.saveProjectJSONString()'
-                      ng-model-options='{updateOn: "blur"}'></textarea>
+                      ng-change='projectController.autoSaveProjectJSONString()'
+                      ng-model-options='{ debounce: 1000 }'></textarea>
               </md-input-container>
             </div>
           </div>
diff --git a/src/main/webapp/wise5/authoringTool/project/projectController.es6 b/src/main/webapp/wise5/authoringTool/project/projectController.es6
index 4c90aa2461..97672e914b 100644
--- a/src/main/webapp/wise5/authoringTool/project/projectController.es6
+++ b/src/main/webapp/wise5/authoringTool/project/projectController.es6
@@ -1135,17 +1135,58 @@ class ProjectController {
    * The show JSON button was clicked
    */
   showJSONClicked() {
-    this.showJSONAuthoring = !this.showJSONAuthoring;
     if (this.showJSONAuthoring) {
+      // we were showing the JSON view and the author now wants to hide it
+      if (this.isJSONValid()) {
+        this.toggleJSONAuthoringView();
+        this.UtilService.hideJSONValidMessage();
+      } else {
+        let answer = confirm(this.$translate('jsonInvalidErrorMessage'));
+        if (answer) {
+          // the author wants to revert back to the last valid JSON
+          this.toggleJSONAuthoringView();
+          this.UtilService.hideJSONValidMessage();
+        }
+      }
+    } else {
+      // we were not showing the JSON view and now the author wants to show it
+      this.toggleJSONAuthoringView();
       this.projectJSONString = angular.toJson(this.ProjectService.project, 4);
+      this.UtilService.showJSONValidMessage();
+    }
+  }
+
+  isJSONValid() {
+    try {
+      angular.fromJson(this.projectJSONString);
+      return true;
+    } catch(e) {
+      return false;
+    }
+  }
+
+  toggleJSONAuthoringView() {
+    this.showJSONAuthoring = !this.showJSONAuthoring;
+  }
+
+  /**
+   * Save the project JSON to the server if the JSON is valid.
+   */
+  autoSaveProjectJSONString() {
+    try {
+      this.saveProjectJSON(this.projectJSONString);
+      this.UtilService.showJSONValidMessage();
+    } catch(e) {
+      this.UtilService.showJSONInvalidMessage();
     }
   }
 
   /**
    * Save the project JSON string to the server
+   * @param projectJSONString
    */
-  saveProjectJSONString() {
-    let project = angular.fromJson(this.projectJSONString);
+  saveProjectJSON(projectJSONString) {
+    let project = angular.fromJson(projectJSONString);
     this.ProjectService.setProject(project);
     let scriptFilename = this.ProjectService.getProjectScriptFilename();
     if (scriptFilename != null) {
@@ -1300,6 +1341,9 @@ class ProjectController {
       // if the advanced view is shown, do not show the project view
       this.projectMode = !this.advancedMode;
     }
+    if (!this.showJSONAuthoring) {
+      this.UtilService.hideJSONValidMessage();
+    }
   }
 
   /**
diff --git a/src/main/webapp/wise5/authoringTool/project/projectController.js b/src/main/webapp/wise5/authoringTool/project/projectController.js
index 1646dc01cd..a80bb1e7ec 100644
--- a/src/main/webapp/wise5/authoringTool/project/projectController.js
+++ b/src/main/webapp/wise5/authoringTool/project/projectController.js
@@ -1394,20 +1394,66 @@ var ProjectController = function () {
   }, {
     key: 'showJSONClicked',
     value: function showJSONClicked() {
-      this.showJSONAuthoring = !this.showJSONAuthoring;
       if (this.showJSONAuthoring) {
+        // we were showing the JSON view and the author now wants to hide it
+        if (this.isJSONValid()) {
+          this.toggleJSONAuthoringView();
+          this.UtilService.hideJSONValidMessage();
+        } else {
+          var answer = confirm(this.$translate('jsonInvalidErrorMessage'));
+          if (answer) {
+            // the author wants to revert back to the last valid JSON
+            this.toggleJSONAuthoringView();
+            this.UtilService.hideJSONValidMessage();
+          }
+        }
+      } else {
+        // we were not showing the JSON view and now the author wants to show it
+        this.toggleJSONAuthoringView();
         this.projectJSONString = angular.toJson(this.ProjectService.project, 4);
+        this.UtilService.showJSONValidMessage();
+      }
+    }
+  }, {
+    key: 'isJSONValid',
+    value: function isJSONValid() {
+      try {
+        angular.fromJson(this.projectJSONString);
+        return true;
+      } catch (e) {
+        return false;
+      }
+    }
+  }, {
+    key: 'toggleJSONAuthoringView',
+    value: function toggleJSONAuthoringView() {
+      this.showJSONAuthoring = !this.showJSONAuthoring;
+    }
+
+    /**
+     * Save the project JSON to the server if the JSON is valid.
+     */
+
+  }, {
+    key: 'autoSaveProjectJSONString',
+    value: function autoSaveProjectJSONString() {
+      try {
+        this.saveProjectJSON(this.projectJSONString);
+        this.UtilService.showJSONValidMessage();
+      } catch (e) {
+        this.UtilService.showJSONInvalidMessage();
       }
     }
 
     /**
      * Save the project JSON string to the server
+     * @param projectJSONString
      */
 
   }, {
-    key: 'saveProjectJSONString',
-    value: function saveProjectJSONString() {
-      var project = angular.fromJson(this.projectJSONString);
+    key: 'saveProjectJSON',
+    value: function saveProjectJSON(projectJSONString) {
+      var project = angular.fromJson(projectJSONString);
       this.ProjectService.setProject(project);
       var scriptFilename = this.ProjectService.getProjectScriptFilename();
       if (scriptFilename != null) {
@@ -1577,6 +1623,9 @@ var ProjectController = function () {
         // if the advanced view is shown, do not show the project view
         this.projectMode = !this.advancedMode;
       }
+      if (!this.showJSONAuthoring) {
+        this.UtilService.hideJSONValidMessage();
+      }
     }
 
     /**
diff --git a/src/main/webapp/wise5/authoringTool/project/projectController.js.map b/src/main/webapp/wise5/authoringTool/project/projectController.js.map
index 34d720c397..74ed73303e 100644
--- a/src/main/webapp/wise5/authoringTool/project/projectController.js.map
+++ b/src/main/webapp/wise5/authoringTool/project/projectController.js.map
@@ -1 +1 @@
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strict';\n\nclass ProjectController {\n\n  constructor(\n      $anchorScroll,\n      $filter,\n      $interval,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      $state,\n      $stateParams,\n      $timeout,\n      AuthorWebSocketService,\n      ConfigService,\n      ProjectAssetService,\n      ProjectService,\n      TeacherDataService,\n      UtilService) {\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$interval = $interval;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$state = $state;\n    this.$stateParams = $stateParams;\n    this.$timeout = $timeout;\n    this.$translate = this.$filter('translate');\n    this.AuthorWebSocketService = AuthorWebSocketService;\n    this.ConfigService = ConfigService;\n    this.ProjectAssetService = ProjectAssetService;\n    this.ProjectService = ProjectService;\n    this.TeacherDataService = TeacherDataService;\n    this.UtilService = UtilService;\n\n    this.projectId = this.$stateParams.projectId;\n    this.runId = this.ConfigService.getRunId();\n    this.items = this.ProjectService.idToOrder;\n    this.nodeIds = this.ProjectService.getFlattenedProjectAsNodeIds();\n    this.showCreateGroup = false;\n    this.showCreateNode = false;\n    this.projectTitle = this.ProjectService.getProjectTitle();\n    this.inactiveGroupNodes = this.ProjectService.getInactiveGroupNodes();\n    this.inactiveStepNodes = this.ProjectService.getInactiveStepNodes();\n    this.inactiveNodes = this.ProjectService.getInactiveNodes();\n    this.idToNode = this.ProjectService.getIdToNode();\n    this.projectScriptFilename = this.ProjectService.getProjectScriptFilename();\n    this.currentAuthorsMessage = '';\n    this.projectMode = true;\n    this.showCreateGroup = false;\n    this.showCreateNode = false;\n    this.showImportView = false;\n    this.importMode = false;\n    this.editProjectRubricMode = false;\n    this.advancedMode = false;\n    this.showJSONAuthoring = false;\n\n    // whether there are any step nodes checked\n    this.stepNodeSelected = false;\n\n    // whether there are any activity nodes checked\n    this.activityNodeSelected = false;\n\n    /*\n     * The colors for the branch path steps. The colors are from\n     * http://colorbrewer2.org/\n     * http://colorbrewer2.org/export/colorbrewer.js\n     * The colors chosen are from the 'qualitative', 'Set2'.\n     */\n    this.stepBackgroundColors = ['#66c2a5','#fc8d62','#8da0cb','#e78ac3',\n        '#a6d854','#ffd92f','#e5c494','#b3b3b3'];\n\n    // start by opening the project, with no node being authored\n    this.TeacherDataService.setCurrentNode(null);\n\n    this.metadata = this.ProjectService.getProjectMetadata();\n    this.ProjectService.notifyAuthorProjectBegin(this.projectId);\n    this.summernoteRubricId = 'summernoteRubric_' + this.projectId;\n    this.summernoteRubricHTML = this.ProjectService\n        .replaceAssetPaths(this.ProjectService.getProjectRubric());\n\n    let insertAssetToolTipText = this.$translate('INSERT_ASSET');\n    let insertAssetButton = this.UtilService.createInsertAssetButton(this,\n          this.projectId, null, null, 'rubric', insertAssetToolTipText);\n\n    // options to display in the summernote tool\n    this.summernoteRubricOptions = {\n      toolbar: [\n        ['style', ['style']],\n        ['font', ['bold', 'underline', 'clear']],\n        ['fontname', ['fontname']],\n        ['fontsize', ['fontsize']],\n        ['color', ['color']],\n        ['para', ['ul', 'ol', 'paragraph']],\n        ['table', ['table']],\n        ['insert', ['link', 'video']],\n        ['view', ['fullscreen', 'codeview', 'help']],\n        ['customButton', ['insertAssetButton']]\n      ],\n      height: 300,\n      disableDragAndDrop: true,\n      buttons: {\n        'insertAssetButton': insertAssetButton\n      }\n    };\n\n    this.projectURL = window.location.origin + this.ConfigService.getConfigParam('projectURL');\n\n    this.$scope.$on('currentAuthorsReceived', (event, args) => {\n      let currentAuthorsUsernames = args.currentAuthorsUsernames;\n      let myUserName = this.ConfigService.getMyUserName();\n      currentAuthorsUsernames\n          .splice(currentAuthorsUsernames.indexOf(myUserName), 1);\n      if (currentAuthorsUsernames.length > 0) {\n        this.currentAuthorsMessage = this.$translate('concurrentAuthorsWarning',\n            { currentAuthors: currentAuthorsUsernames.join(', ') });\n      } else {\n        this.currentAuthorsMessage = '';\n      }\n    });\n\n    this.$scope.$on('$destroy', () => {\n      this.ProjectService.notifyAuthorProjectEnd(this.projectId);\n    });\n\n    /*\n     * Listen for the assetSelected event which occurs when the author\n     * selects an asset from the choose asset popup to add to project rubric\n     * or choosing the script file.\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n      if (args != null && args.projectId == this.projectId &&\n          args.assetItem != null && args.assetItem.fileName != null) {\n        let assetFileName = args.assetItem.fileName;\n        if (args.target === 'rubric') {\n          let summernoteElement = $('#summernoteRubric_' + this.projectId);\n          let fullAssetPath =\n              this.ConfigService.getProjectAssetsDirectoryPath() +\n                  '/' + assetFileName;\n          if (this.UtilService.isImage(assetFileName)) {\n            /*\n             * move the cursor back to its position when the asset chooser\n             * popup was clicked\n             */\n            summernoteElement.summernote('editor.restoreRange');\n            summernoteElement.summernote('editor.focus');\n            summernoteElement.summernote(\n                'insertImage', fullAssetPath, assetFileName);\n          } else if (this.UtilService.isVideo(assetFileName)) {\n            /*\n             * move the cursor back to its position when the asset chooser\n             * popup was clicked\n             */\n            summernoteElement.summernote('editor.restoreRange');\n            summernoteElement.summernote('editor.focus');\n            let videoElement = document.createElement('video');\n            videoElement.controls = 'true';\n            videoElement.innerHTML =\n                '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n            summernoteElement.summernote('insertNode', videoElement);\n          }\n        } else if (args.target === 'scriptFilename') {\n          this.projectScriptFilename = assetFileName;\n          this.projectScriptFilenameChanged();\n        }\n      }\n      this.$mdDialog.hide();\n    });\n\n    this.$rootScope.$on('$stateChangeSuccess',\n        (event, toState, toParams, fromState, fromParams) => {\n      if (toState != null) {\n        let stateName = toState.name;\n        if (stateName == 'root.project') {\n          this.saveEvent('projectHomeViewOpened', 'Navigation');\n        } else if (stateName == 'root.project.node') {\n        } else if (stateName == 'root.project.asset') {\n          this.saveEvent('assetsViewOpened', 'Navigation');\n        } else if (stateName == 'root.project.info') {\n          this.saveEvent('projectInfoViewOpened', 'Navigation');\n        } else if (stateName == 'root.project.notebook') {\n          this.saveEvent('notebookViewOpened', 'Navigation');\n        }\n      }\n    });\n\n    this.$rootScope.$on('projectSaved', () => {\n      //this.saveEvent('projectSaved', 'Authoring');\n    });\n\n    /*\n     * Listen for the event to parse the project. This is so other\n     * controllers can trigger parsing the project in this controller.\n     */\n    this.$rootScope.$on('parseProject', () => {\n      this.refreshProject();\n    });\n\n    this.$rootScope.$on('scrollToBottom', () => {\n      this.scrollToBottomOfPage();\n    });\n\n    this.saveEvent('projectOpened', 'Navigation');\n  };\n\n  /**\n   * Launch the project in preview mode in a new tab\n   */\n  previewProject() {\n    let previewProjectEventData = { constraints: true };\n    this.saveEvent('projectPreviewed', 'Navigation', previewProjectEventData);\n    window.open(this.ConfigService.getConfigParam('previewProjectURL'));\n  };\n\n  /**\n   * Launch the project in preview mode without constraints in a new tab\n   */\n  previewProjectWithoutConstraints() {\n    let previewProjectEventData = { constraints: false };\n    this.saveEvent('projectPreviewed', 'Navigation', previewProjectEventData);\n    window.open(this.ConfigService.getConfigParam('previewProjectURL') +\n        '?constraints=false');\n  };\n\n  viewProjectAssets() {\n    this.$state.go('root.project.asset', {projectId: this.projectId});\n  };\n\n  viewProjectHistory() {\n    this.$state.go('root.project.history', {projectId: this.projectId});\n  };\n\n  viewNotebookSettings() {\n    this.$state.go('root.project.notebook', {projectId: this.projectId});\n  }\n\n  saveProject() {\n    let commitMessage = 'Made changes to the project.';\n    try {\n      // if projectJSONString is bad json,\n      // an exception will be thrown and it will not save.\n      this.ProjectService.saveProject(commitMessage)\n          .then((commitHistoryArray) => {\n        this.commitHistory = commitHistoryArray;\n        $('#commitMessageInput').val('');\n      });\n    } catch (error) {\n      // TODO: i18n\n      alert('Invalid JSON. Please check syntax. Aborting save.');\n      return;\n    }\n  };\n\n  /**\n   * Make a request to download this project as a zip file\n   */\n  downloadProject() {\n    window.location.href = this.ConfigService.getWISEBaseURL()\n        + '/project/export/' + this.projectId;\n  }\n\n  /**\n   * Close authoring for the current project and bring user back to main AT page\n   */\n  closeProject() {\n    this.$state.go('root.main');\n  };\n\n  /**\n   * Get the node position\n   * @param nodeId the node id\n   * @returns the node position\n   */\n  getNodePositionById(nodeId) {\n    return this.ProjectService.getNodePositionById(nodeId);\n  };\n\n  /**\n   * Get the components that are in the specified node id.\n   * @param nodeId the node id\n   * @returns components in the node\n   */\n  getComponentsByNodeId(nodeId) {\n    return this.ProjectService.getComponentsByNodeId(nodeId);\n  }\n\n  /**\n   * Returns a list of possible criteria for the specified node and component\n   * @param nodeId the node id\n   * @param componentId the component id in the node\n   */\n  getPossibleTransitionCriteria(nodeId, componentId) {\n    return this.ProjectService\n        .getPossibleTransitionCriteria(nodeId, componentId);\n  }\n\n  /**\n   * Get the node title for a node\n   * @param nodeId the node id\n   * @returns the node title\n   */\n  getNodeTitleByNodeId(nodeId) {\n    return this.ProjectService.getNodeTitleByNodeId(nodeId);\n  };\n\n  /**\n   * Check if a node id is for a group\n   * @param nodeId\n   * @returns whether the node is a group node\n   */\n  isGroupNode(nodeId) {\n    return this.ProjectService.isGroupNode(nodeId);\n  };\n\n  /**\n   * A node was clicked so we will go to the node authoring view\n   * @param nodeId\n   */\n  nodeClicked(nodeId) {\n    this.unselectAllItems();\n    this.TeacherDataService\n        .endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\n    this.$state\n        .go('root.project.node', {projectId: this.projectId, nodeId: nodeId});\n  };\n\n  /**\n   * The constraint icon on a step in the project view was clicked.\n   * We will open the constraint view for the step.\n   * @param nodeId The node id of the step.\n   */\n  constraintIconClicked(nodeId) {\n    this.TeacherDataService\n      .endCurrentNodeAndSetCurrentNodeByNodeId(nodeId);\n    this.$state\n      .go('root.project.nodeConstraints', {projectId: this.projectId, nodeId: nodeId});\n  }\n\n  /**\n   * The branch icon on a step in the project view was clicked.\n   * We will open the transitions view for the step.\n   * @param nodeId The node id of the step.\n   */\n  branchIconClicked(nodeId) {\n    this.TeacherDataService\n      .endCurrentNodeAndSetCurrentNodeByNodeId(nodeId);\n    this.$state\n      .go('root.project.nodeEditPaths', {projectId: this.projectId, nodeId: nodeId});\n  }\n\n  /**\n   * Create a new group (activity)\n   */\n  createGroup() {\n    /*\n     * set the group into this variable to hold it temporarily while the\n     * author decides where to place it\n     */\n    this.nodeToAdd = this.ProjectService.createGroup(this.createGroupTitle);\n\n    this.showCreateGroup = false;\n    this.createGroupTitle = '';\n    this.insertGroupMode = true;\n    this.createMode = true;\n  }\n\n  /**\n   * Create a new node (step)\n   */\n  createNode() {\n    /*\n     * set the node into this variable to hold it temporarily while the\n     * author decides where to place it\n     */\n    this.nodeToAdd = this.ProjectService.createNode(this.createNodeTitle);\n\n    this.showCreateNode = false;\n    this.createNodeTitle = '';\n    this.insertNodeMode = true;\n    this.createMode = true;\n  }\n\n  /**\n   * Insert the node(s) inside\n   * @param nodeId the node id of the group that we will insert into\n   */\n  insertInside(nodeId) {\n    // TODO check that we are inserting into a group\n    if (this.createMode) {\n      this.handleCreateModeInsert(nodeId, 'inside');\n    } else if (this.moveMode) {\n      this.handleMoveModeInsert(nodeId, 'inside');\n    } else if (this.copyMode) {\n      this.handleCopyModeInsert(nodeId, 'inside');\n    } else if (this.importMode) {\n      this.importSelectedNodes(nodeId);\n    }\n  }\n\n  /**\n   * Insert the node(s) after\n   * @param nodeId the node id of the node we will insert after\n   */\n  insertAfter(nodeId) {\n    if (this.createMode) {\n      this.handleCreateModeInsert(nodeId, 'after');\n    } else if (this.moveMode) {\n      this.handleMoveModeInsert(nodeId, 'after');\n    } else if (this.copyMode) {\n      this.handleCopyModeInsert(nodeId, 'after');\n    } else if (this.importMode) {\n      this.importSelectedNodes(nodeId);\n    }\n  }\n\n  /**\n   * Create a node and then insert it in the specified location\n   * @param nodeId insert the new node inside or after this node id\n   * @param moveTo whether to insert 'inside' or 'after' the nodeId parameter\n   */\n  handleCreateModeInsert(nodeId, moveTo) {\n    if (moveTo === 'inside') {\n      this.ProjectService.createNodeInside(this.nodeToAdd, nodeId);\n    } else if (moveTo === 'after') {\n      this.ProjectService.createNodeAfter(this.nodeToAdd, nodeId);\n    } else {\n      // an unspecified moveTo was provided\n      return;\n    }\n\n    let newNodes = [this.nodeToAdd];\n    let newNode = this.nodeToAdd;\n\n    /*\n     * clear this variable that we used to hold the node we inserted.\n     * since we have inserted the node we don't need a handle to it\n     * anymore\n     */\n    this.nodeToAdd = null;\n\n    this.createMode = false;\n    this.insertGroupMode = false;\n    this.insertNodeMode = false;\n    this.temporarilyHighlightNewNodes(newNodes);\n\n    this.checkPotentialStartNodeIdChangeThenSaveProject().then(() => {\n      if (newNode != null) {\n        let nodeCreatedEventData = {\n          'nodeId': newNode.id,\n          'title': this.ProjectService\n              .getNodePositionAndTitleByNodeId(newNode.id)\n        };\n\n        if (this.ProjectService.isGroupNode(newNode.id)) {\n          this.saveEvent('activityCreated', 'Authoring', nodeCreatedEventData);\n        } else {\n          this.saveEvent('stepCreated', 'Authoring', nodeCreatedEventData);\n        }\n      }\n    });\n  }\n\n  /**\n   * Move a node and insert it in the specified location\n   * @param nodeId insert the new node inside or after this node id\n   * @param moveTo whether to insert 'inside' or 'after' the nodeId parameter\n   */\n  handleMoveModeInsert(nodeId, moveTo) {\n    let selectedNodeIds = this.getSelectedNodeIds();\n    if (selectedNodeIds != null && selectedNodeIds.indexOf(nodeId) != -1) {\n      /*\n       * the user is trying to insert the selected node ids after\n       * itself so we will not allow that\n       */\n      if (selectedNodeIds.length == 1) {\n        alert(this\n            .$translate('youAreNotAllowedToInsertTheSelectedItemAfterItself'));\n      } else if (selectedNodeIds.length > 1) {\n        alert(this\n            .$translate('youAreNotAllowedToInsertTheSelectedItemsAfterItself'));\n      }\n    } else {\n      let movedNodes = [];\n      for (let selectedNodeId of selectedNodeIds) {\n        let node = {\n          'nodeId': selectedNodeId,\n          'fromTitle': this.ProjectService\n              .getNodePositionAndTitleByNodeId(selectedNodeId)\n        };\n        movedNodes.push(node);\n      }\n\n      let newNodes = [];\n      if (moveTo === 'inside') {\n        newNodes = this.ProjectService.moveNodesInside(selectedNodeIds, nodeId);\n      } else if (moveTo === 'after') {\n        newNodes = this.ProjectService.moveNodesAfter(selectedNodeIds, nodeId);\n      } else {\n        // an unspecified moveTo was provided\n        return;\n      }\n\n      this.moveMode = false;\n      this.insertGroupMode = false;\n      this.insertNodeMode = false;\n      this.temporarilyHighlightNewNodes(newNodes);\n      this.checkPotentialStartNodeIdChangeThenSaveProject().then(() => {\n        if (newNodes != null && newNodes.length > 0) {\n          let firstNewNode = newNodes[0];\n          if (firstNewNode != null && firstNewNode.id != null) {\n            for (let n = 0; n < movedNodes.length; n++) {\n              let node = movedNodes[n];\n              let newNode = newNodes[n];\n              if (node != null && newNode != null) {\n                node.toTitle = this.ProjectService\n                    .getNodePositionAndTitleByNodeId(newNode.id);\n              }\n            }\n\n            if (this.ProjectService.isGroupNode(firstNewNode.id)) {\n              let nodeMovedEventData = { activitiesMoved: movedNodes };\n              this.saveEvent('activityMoved', 'Authoring', nodeMovedEventData);\n            } else {\n              let nodeMovedEventData = { stepsMoved: movedNodes };\n              this.saveEvent('stepMoved', 'Authoring', nodeMovedEventData);\n            }\n          }\n        }\n      });\n    }\n  }\n\n  /**\n   * Copy a node and insert it in the specified location\n   * @param nodeId insert the new node inside or after this node id\n   * @param moveTo whether to insert 'inside' or 'after' the nodeId parameter\n   */\n  handleCopyModeInsert(nodeId, moveTo) {\n    let copiedNodes = [];\n    let selectedNodeIds = this.getSelectedNodeIds();\n    for (let selectedNodeId of selectedNodeIds) {\n      let node = {\n        'fromNodeId': selectedNodeId,\n        'fromTitle': this.ProjectService\n            .getNodePositionAndTitleByNodeId(selectedNodeId)\n      };\n      copiedNodes.push(node);\n    }\n\n    let newNodes = [];\n    if (moveTo === 'inside') {\n      newNodes = this.ProjectService.copyNodesInside(selectedNodeIds, nodeId);\n    } else if (moveTo === 'after') {\n      newNodes = this.ProjectService.copyNodesAfter(selectedNodeIds, nodeId);\n    } else {\n      // an unspecified moveTo was provided\n      return;\n    }\n\n    this.copyMode = false;\n    this.insertGroupMode = false;\n    this.insertNodeMode = false;\n    this.temporarilyHighlightNewNodes(newNodes);\n    this.checkPotentialStartNodeIdChangeThenSaveProject().then(() => {\n      if (newNodes != null && newNodes.length > 0) {\n        let firstNewNode = newNodes[0];\n        if (firstNewNode != null && firstNewNode.id != null) {\n          for (let n = 0; n < copiedNodes.length; n++) {\n            let node = copiedNodes[n];\n            let newNode = newNodes[n];\n            if (node != null && newNode != null) {\n              node.toNodeId = newNode.id;\n              node.toTitle = this.ProjectService\n                  .getNodePositionAndTitleByNodeId(newNode.id);\n            }\n          }\n\n          if (this.ProjectService.isGroupNode(firstNewNode.id)) {\n            let nodeCopiedEventData = { activitiesCopied: copiedNodes };\n            this.saveEvent('activityCopied', 'Authoring', nodeCopiedEventData);\n          } else {\n            let nodeCopiedEventData = { stepsCopied: copiedNodes };\n            this.saveEvent('stepCopied', 'Authoring', nodeCopiedEventData);\n          }\n        }\n      }\n    });\n  }\n\n  /**\n   * Import the selected steps and draw attention to them by highlighting them\n   * and scrolling to them.\n   * @param nodeIdToInsertInsideOrAfter If this is a group, we will make the\n   * new step the first step in the group. If this is a step, we will place\n   * the new step after it.\n   */\n  importSelectedNodes(nodeIdToInsertInsideOrAfter) {\n    let selectedNodes = this.getSelectedNodesToImport();\n    let selectedNodeTitles = this.getSelectedNodeTitlesToImport();\n    let toProjectId = this.ConfigService.getConfigParam('projectId');\n    let fromProjectId = this.importProjectId;\n\n    this.performImport(nodeIdToInsertInsideOrAfter).then((newNodes) => {\n      this.checkPotentialStartNodeIdChangeThenSaveProject().then(() => {\n        let doScrollToNewNodes = true;\n        this.temporarilyHighlightNewNodes(newNodes, doScrollToNewNodes);\n\n        let stepsImported = [];\n        for (let n = 0; n < selectedNodes.length; n++) {\n          let selectedNode = selectedNodes[n];\n          let selectedNodeTitle = selectedNodeTitles[n];\n          let newNode = newNodes[n];\n\n          let stepImported = {\n            fromProjectId: parseInt(fromProjectId),\n            fromNodeId: selectedNode.id,\n            fromTitle: selectedNodeTitle,\n            toNodeId: newNode.id,\n            toTitle: this.ProjectService\n              .getNodePositionAndTitleByNodeId(newNode.id)\n          };\n          stepsImported.push(stepImported);\n        }\n\n        let stepsImportedEventData = { 'stepsImported': stepsImported };\n        this.saveEvent('stepImported', 'Authoring', stepsImportedEventData);\n      });\n    });\n  }\n\n  /**\n   * Import the step and place it in the chosen location\n   * @param nodeIdToInsertInsideOrAfter If this is a group, we will make the\n   * new step the first step in the group. If this is a step, we will place\n   * the new step after it.\n   */\n  performImport(nodeIdToInsertInsideOrAfter) {\n    let selectedNodes = this.getSelectedNodesToImport();\n    let toProjectId = this.ConfigService.getConfigParam('projectId');\n    let fromProjectId = this.importProjectId;\n\n    return this.ProjectService.copyNodes(selectedNodes, fromProjectId,\n        toProjectId, nodeIdToInsertInsideOrAfter).then((newNodes) => {\n      this.refreshProject();\n      this.insertNodeMode = false;\n      this.toggleView('project');\n\n      this.importProjectIdToOrder = {};\n      this.importProjectItems = [];\n      this.importMyProjectId = null;\n      this.importLibraryProjectId = null;\n      this.importProjectId = null;\n      this.importProject = null;\n\n      /*\n       * go back to the project view and\n       * refresh the project assets in case any of the imported\n       * steps also imported assets\n       */\n      this.showProjectHome();\n      this.ProjectAssetService.retrieveProjectAssets();\n      return newNodes;\n    });\n  }\n\n  /**\n   * Turn on copy mode\n   */\n  copy() {\n    // make sure there is at least one item selected\n    let selectedNodeIds = this.getSelectedNodeIds();\n    if (selectedNodeIds == null || selectedNodeIds.length == 0) {\n      alert(this.$translate('pleaseSelectAnItemToCopyAndThenClickTheCopyButtonAgain'));\n    } else {\n      let selectedItemTypes = this.getSelectedItemTypes();\n      if (selectedItemTypes.length === 1 && selectedItemTypes[0] === 'node') {\n        this.insertNodeMode = true;\n        this.copyMode = true;\n      } else if (selectedItemTypes.length === 1 && selectedItemTypes[0] === 'group') {\n        alert(this.$translate('youCannotCopyActivitiesAtThisTime'));\n      }\n    }\n  }\n\n  /**\n   * Turn on move mode\n   * TODO refactor. too many nesting. Rename function to \"turnOnMoveMode\"?\n   */\n  move() {\n    // make sure there is at least one item selected\n    let selectedNodeIds = this.getSelectedNodeIds();\n    if (selectedNodeIds == null || selectedNodeIds.length == 0) {\n      alert(this.$translate('pleaseSelectAnItemToMoveAndThenClickTheMoveButtonAgain'));\n    } else {\n      let selectedItemTypes = this.getSelectedItemTypes();\n      if (selectedItemTypes.length === 1 && selectedItemTypes[0] === 'node') {\n        this.insertNodeMode = true;\n        this.moveMode = true;\n      } else if (selectedItemTypes.length === 1 && selectedItemTypes[0] === 'group') {\n        this.insertGroupMode = true;\n        this.moveMode = true;\n      }\n    }\n  }\n\n  /**\n   * Delete the selected nodes after asking user for confirmation\n   * TODO refactor too many nesting\n   */\n  delete() {\n    let selectedNodeIds = this.getSelectedNodeIds();\n    if (selectedNodeIds == null || selectedNodeIds.length == 0) {\n      alert(this.$translate('pleaseSelectAnItemToDeleteAndThenClickTheDeleteButtonAgain'));\n    } else {\n      let confirmMessage = '';\n      if (selectedNodeIds.length == 1) {\n        confirmMessage = this.$translate('areYouSureYouWantToDeleteTheSelectedItem');\n      } else if (selectedNodeIds.length > 1) {\n        confirmMessage = this.$translate('areYouSureYouWantToDeleteTheXSelectedItems',\n            { numItems: selectedNodeIds.length });\n      }\n      if (confirm(confirmMessage)) {\n        let deletedStartNodeId = false;\n        let activityDeleted = false;\n        let stepDeleted = false;\n        let stepsDeleted = [];\n        let activitiesDeleted = [];\n        for (let nodeId of selectedNodeIds) {\n          let node = this.ProjectService.getNodeById(nodeId);\n          let tempNode = {};\n\n          if (node != null) {\n            tempNode.nodeId = node.id;\n            tempNode.title =\n                this.ProjectService.getNodePositionAndTitleByNodeId(node.id);\n          }\n\n          if (this.ProjectService.isStartNodeId(nodeId)) {\n            deletedStartNodeId = true;\n          }\n\n          if (this.ProjectService.isGroupNode(nodeId)) {\n            activityDeleted = true;\n            let stepsInActivityDeleted = [];\n            for (let stepNodeId of node.ids) {\n              let stepTitle = this.ProjectService\n                  .getNodePositionAndTitleByNodeId(stepNodeId);\n\n              // create an object with the step id and title\n              let stepObject = {\n                'nodeId': stepNodeId,\n                'title': stepTitle\n              };\n              stepsInActivityDeleted.push(stepObject);\n            }\n            tempNode.stepsInActivityDeleted = stepsInActivityDeleted;\n            activitiesDeleted.push(tempNode);\n          } else {\n            stepDeleted = true;\n            stepsDeleted.push(tempNode);\n          }\n          this.ProjectService.deleteNode(nodeId);\n        }\n\n        if (deletedStartNodeId) {\n          this.updateStartNodeId();\n        }\n\n        if (activityDeleted) {\n          let activitiesDeletedEventData = {\n            'activitiesDeleted': activitiesDeleted\n          };\n          this.saveEvent('activityDeleted', 'Authoring',\n              activitiesDeletedEventData);\n        }\n\n        if (stepDeleted) {\n          let stepDeletedEventData = {\n            'stepsDeleted': stepsDeleted\n          };\n          this.saveEvent('stepDeleted', 'Authoring', stepDeletedEventData);\n        }\n\n        this.ProjectService.saveProject();\n        this.refreshProject();\n      }\n    }\n  }\n\n  /**\n   * Get the ids of the selected nodes, both active and inactive.\n   * @returns an array of node ids that are selected\n   */\n  getSelectedNodeIds() {\n    let selectedNodeIds = [];\n    angular.forEach(this.items, function(value, key) {\n      if (value.checked) {\n        selectedNodeIds.push(key);\n      }\n    }, selectedNodeIds);\n\n    if (this.inactiveNodes != null) {\n      for (let inactiveNode of this.inactiveNodes) {\n        if (inactiveNode != null && inactiveNode.checked) {\n          selectedNodeIds.push(inactiveNode.id);\n        }\n      }\n    }\n    return selectedNodeIds;\n  }\n\n  /**\n   * Get the distinct types of the selected items, both active and inactive.\n   * @returns an array of item types. possible items are group or node.\n   */\n  getSelectedItemTypes() {\n    let selectedItemTypes = [];\n\n    angular.forEach(this.items, function(value, key) {\n      if (value.checked) {\n        let node = this.ProjectService.getNodeById(key);\n        if (node != null) {\n          let nodeType = node.type;\n          if (selectedItemTypes.indexOf(nodeType) == -1) {\n            selectedItemTypes.push(nodeType);\n          }\n        }\n      }\n    }, this);\n\n    if (this.inactiveNodes != null) {\n      for (let inactiveNode of this.inactiveNodes) {\n        if (inactiveNode != null && inactiveNode.checked) {\n          let inactiveNodeType = inactiveNode.type;\n          if (selectedItemTypes.indexOf(inactiveNodeType) == -1) {\n            selectedItemTypes.push(inactiveNodeType);\n          }\n        }\n      }\n    }\n\n    return selectedItemTypes;\n  }\n\n  unselectAllItems() {\n    angular.forEach(this.items, function(value, key) {\n      value.checked = false;\n    });\n    angular.forEach(this.inactiveGroupNodes, function(value, key) {\n      value.checked = false;\n    });\n    angular.forEach(this.inactiveStepNodes, function(value, key) {\n      value.checked = false;\n    });\n    this.stepNodeSelected = false;\n    this.activityNodeSelected = false;\n  }\n\n  /**\n   * Toggle the create group input\n   */\n  creatNewActivityClicked() {\n    this.createGroupTitle = '';\n    this.toggleView('createGroup');\n    if (this.showCreateGroup) {\n      this.$timeout(() => {\n        $('#createGroupTitle').focus();\n      });\n    }\n  }\n\n  /**\n   * Toggle the create node input\n   */\n  createNewStepClicked() {\n    this.createNodeTitle = '';\n    this.toggleView('createNode');\n    if (this.showCreateNode) {\n      this.$timeout(() => {\n        $('#createNodeTitle').focus();\n      });\n    }\n  }\n\n  /**\n   * Cancel the move mode\n   */\n  cancelMove() {\n    this.insertGroupMode = false;\n    this.insertNodeMode = false;\n    this.nodeToAdd = null;\n    this.createMode = false;\n    this.moveMode = false;\n    this.copyMode = false;\n    this.importMode = false;\n    this.unselectAllItems();\n  }\n\n  /**\n   * Update the start node id by traversing start ids until a\n   * node id is found.\n   */\n  updateStartNodeId() {\n    let newStartNodeId = null;\n    let startGroupId = this.ProjectService.getStartGroupId();\n    let node = this.ProjectService.getNodeById(startGroupId);\n    let done = false;\n\n    // recursively traverse the start ids\n    while (!done) {\n      if (node == null) {\n        // base case in case something went wrong\n        done = true;\n      } else if (this.ProjectService.isGroupNode(node.id)) {\n        // the node is a group node so we will get its start node\n        node = this.ProjectService.getNodeById(node.startId);\n      } else if (this.ProjectService.isApplicationNode(node.id)) {\n        // the node is a step node so we have found the new start node id\n        newStartNodeId = node.id;\n        done = true;\n      } else {\n        // base case in case something went wrong\n        done = true;\n      }\n    }\n\n    if (newStartNodeId) {\n      this.ProjectService.setStartNodeId(newStartNodeId);\n    }\n  }\n\n  /**\n   * Check if the start node id for the project could potentially\n   * change.\n   */\n  checkPotentialStartNodeIdChange() {\n    return this.$q((resolve, reject) => {\n      let firstLeafNodeId = this.ProjectService.getFirstLeafNodeId();\n      if (firstLeafNodeId == null) {\n        // there are no steps in the project\n        // set the start node id to empty string\n        this.ProjectService.setStartNodeId('');\n        resolve();\n      } else {\n        // we have found a leaf node\n        let currentStartNodeId = this.ProjectService.getStartNodeId();\n        if (currentStartNodeId != firstLeafNodeId) {\n          // update the start node id\n          this.ProjectService.setStartNodeId(firstLeafNodeId);\n          resolve();\n        } else {\n          resolve();\n        }\n      }\n    });\n  }\n\n  /**\n   * Check if the start node id has changed and then save the project\n   */\n  checkPotentialStartNodeIdChangeThenSaveProject() {\n    return this.checkPotentialStartNodeIdChange().then(() => {\n      this.ProjectService.saveProject();\n      this.refreshProject();\n    });\n  }\n\n  /**\n   * Recalculates step numbering\n   */\n  refreshProject() {\n    /*\n     * Use a timeout before we refresh the project in order to allow the\n     * spinning progress indicator to show up before the browser starts\n     * blocking/freezing.\n     */\n    this.$timeout(() => {\n      this.ProjectService.parseProject();\n      this.items = this.ProjectService.idToOrder;\n      this.inactiveGroupNodes = this.ProjectService.getInactiveGroupNodes();\n      this.inactiveStepNodes = this.ProjectService.getInactiveStepNodes();\n      this.inactiveNodes = this.ProjectService.getInactiveNodes();\n      this.idToNode = this.ProjectService.getIdToNode();\n      this.unselectAllItems();\n    });\n  }\n\n  /**\n   * The project title changed so we will update the project title in the\n   * project service and save the project\n   */\n  projectTitleChanged() {\n    this.ProjectService.setProjectTitle(this.projectTitle);\n    this.ProjectService.saveProject();\n  }\n\n  /**\n   * Toggle the import view and populate the project drop downs if necessary\n   */\n  importStepClicked() {\n    this.toggleView('importStep');\n\n    if (this.importMode) {\n      if (this.myProjectsList == null) {\n        this.myProjectsList = this.ConfigService.getAuthorableProjects();\n      }\n\n      if (this.libraryProjectsList == null) {\n        this.ConfigService.getLibraryProjects().then((libraryProjectsList) => {\n          this.libraryProjectsList = libraryProjectsList;\n        });\n      }\n    }\n  }\n\n  /**\n   * The author has chosen an authorable project to import from\n   * @param importProjectId the project id to import from\n   */\n  showMyImportProject(importProjectId) {\n    this.importLibraryProjectId = null;\n    this.showImportProject(importProjectId);\n  }\n\n  /**\n   * The author has chosen a library project to import from\n   * @param importProjectId the project id to import from\n   */\n  showLibraryImportProject(importProjectId) {\n    this.importMyProjectId = null;\n    this.showImportProject(importProjectId);\n  }\n\n  /**\n   * Show the project we want to import steps from\n   * @param importProjectId the import project id\n   */\n  showImportProject(importProjectId) {\n    this.importProjectId = importProjectId;\n    if (this.importProjectId == null) {\n      // clear all the import project values\n      this.importProjectIdToOrder = {};\n      this.importProjectItems = [];\n      this.importMyProjectId = null;\n      this.importLibraryProjectId = null;\n      this.importProjectId = null;\n      this.importProject = null;\n    } else {\n      this.ProjectService.retrieveProjectById(this.importProjectId)\n          .then((projectJSON) => {\n        this.importProject = projectJSON;\n        const nodeOrderOfProject = this.ProjectService\n            .getNodeOrderOfProject(this.importProject);\n        this.importProjectIdToOrder = nodeOrderOfProject.idToOrder;\n        this.importProjectItems = nodeOrderOfProject.nodes;\n      });\n    }\n  }\n\n  /**\n   * Preview the import project in a new tab\n   */\n  previewImportProject() {\n    if (this.importProject != null) {\n      window.open(this.importProject.previewProjectURL);\n    }\n  }\n\n  /**\n   * Preview the import step in a new tab\n   * @param node\n   */\n  previewImportNode(node) {\n    if (node != null) {\n      const nodeId = node.id;\n      const previewProjectURL = this.importProject.previewProjectURL;\n      const previewStepURL  = previewProjectURL + '#/vle/' + nodeId;\n      window.open(previewStepURL);\n    }\n  }\n\n  /**\n   * Import the selected steps\n   */\n  importSteps() {\n    let selectedNodes = this.getSelectedNodesToImport();\n    if (selectedNodes == null || selectedNodes.length == 0) {\n      // TODO i18n\n      alert('Please select a step to import.');\n    } else {\n      /*\n       * hide the import view because we want to go back to the\n       * project view so that the author can choose where to place\n       * the new steps\n       */\n      this.showImportView = false;\n      this.insertNodeMode = true;\n      this.projectMode = true;\n    }\n  }\n\n  /**\n   * Get the selected nodes to import\n   * @return an array of selected nodes\n   */\n  getSelectedNodesToImport() {\n    let selectedNodes = [];\n    for (let item of this.importProjectItems) {\n      if (item.checked) {\n        selectedNodes.push(item.node);\n      }\n    }\n    return selectedNodes;\n  }\n\n  /**\n   * Show the view to edit the project rubric\n   */\n  editProjectRubricClicked() {\n    this.toggleView('rubric');\n  }\n\n  /**\n   * Show the advanced authoring view\n   */\n  advancedClicked() {\n    this.toggleView('advanced');\n  }\n\n  /**\n   * The show JSON button was clicked\n   */\n  showJSONClicked() {\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n    if (this.showJSONAuthoring) {\n      this.projectJSONString = angular.toJson(this.ProjectService.project, 4);\n    }\n  }\n\n  /**\n   * Save the project JSON string to the server\n   */\n  saveProjectJSONString() {\n    let project = angular.fromJson(this.projectJSONString);\n    this.ProjectService.setProject(project);\n    let scriptFilename = this.ProjectService.getProjectScriptFilename();\n    if (scriptFilename != null) {\n      this.projectScriptFilename = scriptFilename;\n    }\n    this.checkPotentialStartNodeIdChangeThenSaveProject();\n  }\n\n  /**\n   * The author has changed the rubric, so save the changes\n   */\n  summernoteRubricHTMLChanged() {\n    let html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    this.ProjectService.setProjectRubric(html);\n    this.ProjectService.saveProject();\n  }\n\n  /**\n   * Check if the specified node is in any branch path\n   * @param nodeId the node id of the node\n   * @return whether the node is in any branch path\n   */\n  isNodeInAnyBranchPath(nodeId) {\n    return this.ProjectService.isNodeInAnyBranchPath(nodeId);\n  }\n\n  /**\n   * The project script file name changed\n   */\n  projectScriptFilenameChanged() {\n    // update the project script file name in the project service\n    this.ProjectService.setProjectScriptFilename(this.projectScriptFilename);\n\n    if (this.showJSONAuthoring) {\n      /*\n       * we are showing the project JSON authoring so we need to update\n       * the JSON string that we are showing in the textarea\n       */\n      this.projectJSONString = angular.toJson(this.ProjectService.project, 4);\n    }\n    this.ProjectService.saveProject();\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose an image for the\n   * project script filename\n   */\n  chooseProjectScriptFilename() {\n    let openAssetChooserParams = {\n      popup: true,\n      projectId: this.projectId,\n      target: 'scriptFilename'\n    };\n    this.$rootScope.$broadcast('openAssetChooser', openAssetChooserParams);\n  }\n\n  /**\n   * Show the appropriate authoring view\n   * @param view the view to show\n   */\n  toggleView(view) {\n    // clear the input element for creating a new activity\n    this.createGroupTitle = '';\n\n    // clear the input element for creating a new step\n    this.createNodeTitle = '';\n\n    if (view == 'project') {\n      // we are showing the regular project view\n      this.showCreateGroup = false;\n      this.showCreateNode = false;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = false;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n      this.projectMode = true;\n    } else if (view == 'createGroup') {\n      // toggle the create activity view\n      this.showCreateGroup = !this.showCreateGroup;\n      this.showCreateNode = false;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = false;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n\n      // also show the project view\n      this.projectMode = true;\n    } else if (view == 'createNode') {\n      // toggle the create step view\n      this.showCreateGroup = false;\n      this.showCreateNode = !this.showCreateNode;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = false;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n\n      // also show the project view\n      this.projectMode = true;\n    } else if (view == 'importStep') {\n      // toggle the import step view\n      this.showCreateGroup = false;\n      this.showCreateNode = false;\n      this.importMode = !this.importMode;\n      this.showImportView = !this.showImportView;\n      this.editProjectRubricMode = false;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n\n      // if the import view is shown, do not show the project view\n      this.projectMode = !this.importMode;\n    } else if (view == 'rubric') {\n      // toggle the rubric view\n      this.showCreateGroup = false;\n      this.showCreateNode = false;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = !this.editProjectRubricMode;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n\n      // if the rubric view is shown, do not show the project view\n      this.projectMode = !this.editProjectRubricMode;\n    } else if (view == 'advanced') {\n      // toggle the advanced view\n      this.showCreateGroup = false;\n      this.showCreateNode = false;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = false;\n      this.advancedMode = !this.advancedMode;\n      this.showJSONAuthoring = false;\n\n      // if the advanced view is shown, do not show the project view\n      this.projectMode = !this.advancedMode;\n    }\n  }\n\n  /**\n   * Go back to a previous page, which is different based on which page\n   * the author is currently on.\n   */\n  backButtonClicked() {\n    if (this.showImportView) {\n      this.toggleView('project');\n    } else if (this.editProjectRubricMode) {\n      this.toggleView('project');\n    } else if (this.advancedMode) {\n      this.toggleView('project');\n    } else {\n      this.$state.go('root.main');\n    }\n  }\n\n  /**\n   * Show the regular project view\n   */\n  projectHomeClicked() {\n    // show the regular project view\n    this.showProjectHome();\n  }\n\n  /**\n   * Show the regular project view\n   */\n  showProjectHome() {\n    // we are going to the project view so we will set the current node to null\n    this.TeacherDataService.setCurrentNode(null);\n\n    // show the regular project view\n    this.toggleView('project');\n    this.scrollToTopOfPage();\n  }\n\n  scrollToTopOfPage() {\n    this.$anchorScroll('top');\n  }\n\n  scrollToBottomOfPage() {\n    $('#content').animate({\n      scrollTop: $('#bottom').prop('offsetTop')\n    }, 1000);\n  }\n\n  /**\n   * Creating a group was cancelled, so show the project regular project view\n   */\n  cancelCreateGroupClicked() {\n    this.toggleView('project');\n  }\n\n  /**\n   * Creating a node was cancelled, so show the project view\n   */\n  cancelCreateNodeClicked() {\n    this.toggleView('project');\n  }\n\n  /**\n   * Temporarily highlight the new nodes to draw attention to them\n   * @param newNodes the new nodes to highlight\n   * @param doScrollToNewNodes if true, scroll to the first new node added\n   * TODO: can we remove the null checks: ensure that newNodes is never null?\n   */\n  temporarilyHighlightNewNodes(newNodes, doScrollToNewNodes = false) {\n    this.$timeout(() => {\n      if (newNodes != null && newNodes.length > 0) {\n        for (let newNode of newNodes) {\n          if (newNode != null) {\n            this.UtilService.temporarilyHighlightElement(newNode.id);\n          }\n        }\n        if (doScrollToNewNodes) {\n          let firstNodeElementAdded = $('#' + newNodes[0].id);\n          if (firstNodeElementAdded != null) {\n            $('#content').animate({\n              scrollTop: firstNodeElementAdded.prop('offsetTop') - 60\n            }, 1000);\n          }\n        }\n      }\n    });\n  }\n\n  /**\n   * Save an Authoring Tool event\n   * @param eventName the name of the event\n   * @param category the category of the event\n   * example 'Navigation' or 'Authoring'\n   * @param data (optional) an object that contains more specific data about\n   * the event\n   */\n  saveEvent(eventName, category, data) {\n    let context = 'AuthoringTool';\n    let nodeId = null;\n    let componentId = null;\n    let componentType = null;\n\n    if (data == null) {\n      data = {};\n    }\n    this.TeacherDataService.saveEvent(context, nodeId, componentId,\n      componentType, category, eventName, data);\n  }\n\n  /**\n   * Get the selected node titles that we are importing\n   * @return an array of node titles that may include the step numbers\n   */\n  getSelectedNodeTitlesToImport() {\n    let selectedNodeTitles = [];\n    let selectedNodes = this.getSelectedNodesToImport();\n    for (let n = 0; n < selectedNodes.length; n++) {\n      let selectedNode = selectedNodes[n];\n      if (selectedNode != null) {\n        // get the step number and title from the import project\n        let tempNode = this.importProjectIdToOrder[selectedNode.id];\n        let stepNumber = tempNode.stepNumber;\n        let title = '';\n\n        if (stepNumber == null) {\n          title = selectedNode.title;\n        } else {\n          title = stepNumber + ': ' + selectedNode.title;\n        }\n        selectedNodeTitles[n] = title;\n      }\n    }\n    return selectedNodeTitles;\n  }\n\n  /**\n   * Get the background color for a step\n   * @param nodeId get the background color for a step in the project view\n   * @return If the node is in a branch path it will return a color. If the\n   * node is not in a branch path it will return null.\n   */\n  getStepBackgroundColor(nodeId) {\n    let color = null;\n    let branchPathLetter = this.ProjectService.getBranchPathLetter(nodeId);\n    if (branchPathLetter != null) {\n      // the node is in a branch path\n\n      // get the ascii code for the letter. example A=65, B=66, C=67, etc.\n      let letterASCIICode = branchPathLetter.charCodeAt(0);\n\n      // get the branch path number A=0, B=1, C=2, etc.\n      let branchPathNumber = letterASCIICode - 65;\n\n      // get the color for the branch path number\n      color = this.stepBackgroundColors[branchPathNumber];\n    }\n    return color;\n}\n\n  /**\n   * Copy the project URL to the clipboard\n   */\n  copyProjectURL() {\n    let textArea = document.createElement('textarea');\n    textArea.value = this.projectURL;\n    document.body.appendChild(textArea);\n    textArea.select();\n    document.execCommand('copy');\n    document.body.removeChild(textArea);\n  }\n\n  /**\n   * Open the project.json file in a new tab\n   */\n  openProjectURLInNewTab() {\n    window.open(this.projectURL, '_blank');\n  }\n\n  /**\n   * Get the number of inactive groups.\n   * @return The number of inactive groups.\n   */\n  getNumberOfInactiveGroups() {\n    let count = 0;\n    for (let n = 0; n < this.inactiveNodes.length; n++) {\n      let inactiveNode = this.inactiveNodes[n];\n      if (inactiveNode != null) {\n        if (inactiveNode.type == 'group') {\n          count++;\n        }\n      }\n    }\n    return count;\n  }\n\n  /**\n   * Get the number of inactive steps. This only counts the inactive steps that\n   * are not in an inactive group.\n   * @return The number of inactive steps (not including the inactive steps that\n   * are in an inactive group).\n   */\n  getNumberOfInactiveSteps() {\n    let count = 0;\n    for (let n = 0; n < this.inactiveNodes.length; n++) {\n      let inactiveNode = this.inactiveNodes[n];\n      if (inactiveNode != null) {\n        if (inactiveNode.type == 'node' &&\n              this.ProjectService.getParentGroup(inactiveNode.id) == null) {\n          count++;\n        }\n      }\n    }\n    return count;\n  }\n\n  /**\n   * Get the parent of a node.\n   * @param nodeId Get the parent of this node.\n   * @return The parent group node or null if the node does not have a parent.\n   */\n  getParentGroup(nodeId) {\n    return this.ProjectService.getParentGroup(nodeId);\n  }\n\n  /**\n   * The checkbox for a node was clicked. We will determine whether there are\n   * any activity nodes that are selected or whether there are any step nodes\n   * that are selected. We do this because we do not allow selecting a mix of\n   * activities and steps. If there are any activity nodes that are selected,\n   * we will disable all the step node check boxes. Alternatively, if there are\n   * any step nodes selected, we will disable all the activity node check boxes.\n   * @param nodeId The node id of the node that was clicked.\n   */\n  projectItemClicked(nodeId) {\n    this.stepNodeSelected = false;\n    this.activityNodeSelected = false;\n\n    // this will check the items that are used in the project\n    for (let nodeId in this.items) {\n      let node = this.items[nodeId];\n      if (node.checked) {\n        if (this.isGroupNode(nodeId)) {\n          this.activityNodeSelected = true;\n        } else {\n          this.stepNodeSelected = true;\n        }\n      }\n    }\n\n    // this will check the items that are unused in the project\n    for (let key in this.idToNode) {\n      let node = this.idToNode[key];\n      if (node.checked) {\n        if (this.isGroupNode(key)) {\n          this.activityNodeSelected = true;\n        } else {\n          this.stepNodeSelected = true;\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if a node is a branch point.\n   * @param nodeId The node id of the node.\n   * @return Whether the node is a branch point.\n   */\n  isBranchPoint(nodeId) {\n    return this.ProjectService.isBranchPoint(nodeId);\n  }\n\n  /**\n   * Get the number of branch paths. This is assuming the node is a branch point.\n   * @param nodeId The node id of the branch point node.\n   * @return The number of branch paths for this branch point.\n   */\n  getNumberOfBranchPaths(nodeId) {\n    return this.ProjectService.getNumberOfBranchPaths(nodeId);\n  }\n\n  /**\n   * Get the description of the branch criteria.\n   * @param nodeId The node id of the branch point node.\n   * @returns A human readable string describing how we will decide which\n   * branch path a student goes down.\n   */\n  getBranchCriteriaDescription(nodeId) {\n    return this.ProjectService.getBranchCriteriaDescription(nodeId);\n  }\n\n  /**\n   * Check if a node has a constraint.\n   * @param nodeId The node id of the node.\n   * @return Whether the node has a constraint authored on it.\n   */\n  nodeHasConstraint(nodeId) {\n    return this.ProjectService.nodeHasConstraint(nodeId);\n  }\n\n  /**\n   * Get the number of constraints authored on a node.\n   * @param nodeId The node id of the node.\n   * @return The number of constraints authored on a node.\n   */\n  getNumberOfConstraintsOnNode(nodeId) {\n    let constraints = this.ProjectService.getConstraintsOnNode(nodeId);\n    return constraints.length;\n  }\n\n  /**\n   * Get the description of the constraints authored on the given step.\n   * @param nodeId The node id.\n   * @return A human readable string containing the description of the\n   * constraints authored on the given step.\n   */\n  getConstraintDescriptions(nodeId) {\n    let constraintDescriptions = '';\n    let constraints = this.ProjectService.getConstraintsOnNode(nodeId);\n    for (let c = 0; c < constraints.length; c++) {\n      let constraint = constraints[c];\n      let description = this.ProjectService.getConstraintDescription(constraint);\n      constraintDescriptions += (c + 1) + ' - ' + description + '\\n';\n    }\n    return constraintDescriptions;\n  }\n\n  /**\n   * Check if a node has a rubric.\n   * @param nodeId The node id of the node.\n   * @return Whether the node or one of the node's components has a rubric\n   * authored on it.\n   */\n  nodeHasRubric(nodeId) {\n    return this.ProjectService.nodeHasRubric(nodeId);\n  }\n}\n\nProjectController.$inject = [\n    '$anchorScroll',\n    '$filter',\n    '$interval',\n    '$mdDialog',\n    '$q',\n    '$rootScope',\n    '$scope',\n    '$state',\n    '$stateParams',\n    '$timeout',\n    'AuthorWebSocketService',\n    'ConfigService',\n    'ProjectAssetService',\n    'ProjectService',\n    'TeacherDataService',\n    'UtilService'\n];\n\nexport default ProjectController;\n"]}
\ No newline at end of file
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strict';\n\nclass ProjectController {\n\n  constructor(\n      $anchorScroll,\n      $filter,\n      $interval,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      $state,\n      $stateParams,\n      $timeout,\n      AuthorWebSocketService,\n      ConfigService,\n      ProjectAssetService,\n      ProjectService,\n      TeacherDataService,\n      UtilService) {\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$interval = $interval;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$state = $state;\n    this.$stateParams = $stateParams;\n    this.$timeout = $timeout;\n    this.$translate = this.$filter('translate');\n    this.AuthorWebSocketService = AuthorWebSocketService;\n    this.ConfigService = ConfigService;\n    this.ProjectAssetService = ProjectAssetService;\n    this.ProjectService = ProjectService;\n    this.TeacherDataService = TeacherDataService;\n    this.UtilService = UtilService;\n\n    this.projectId = this.$stateParams.projectId;\n    this.runId = this.ConfigService.getRunId();\n    this.items = this.ProjectService.idToOrder;\n    this.nodeIds = this.ProjectService.getFlattenedProjectAsNodeIds();\n    this.showCreateGroup = false;\n    this.showCreateNode = false;\n    this.projectTitle = this.ProjectService.getProjectTitle();\n    this.inactiveGroupNodes = this.ProjectService.getInactiveGroupNodes();\n    this.inactiveStepNodes = this.ProjectService.getInactiveStepNodes();\n    this.inactiveNodes = this.ProjectService.getInactiveNodes();\n    this.idToNode = this.ProjectService.getIdToNode();\n    this.projectScriptFilename = this.ProjectService.getProjectScriptFilename();\n    this.currentAuthorsMessage = '';\n    this.projectMode = true;\n    this.showCreateGroup = false;\n    this.showCreateNode = false;\n    this.showImportView = false;\n    this.importMode = false;\n    this.editProjectRubricMode = false;\n    this.advancedMode = false;\n    this.showJSONAuthoring = false;\n\n    // whether there are any step nodes checked\n    this.stepNodeSelected = false;\n\n    // whether there are any activity nodes checked\n    this.activityNodeSelected = false;\n\n    /*\n     * The colors for the branch path steps. The colors are from\n     * http://colorbrewer2.org/\n     * http://colorbrewer2.org/export/colorbrewer.js\n     * The colors chosen are from the 'qualitative', 'Set2'.\n     */\n    this.stepBackgroundColors = ['#66c2a5','#fc8d62','#8da0cb','#e78ac3',\n        '#a6d854','#ffd92f','#e5c494','#b3b3b3'];\n\n    // start by opening the project, with no node being authored\n    this.TeacherDataService.setCurrentNode(null);\n\n    this.metadata = this.ProjectService.getProjectMetadata();\n    this.ProjectService.notifyAuthorProjectBegin(this.projectId);\n    this.summernoteRubricId = 'summernoteRubric_' + this.projectId;\n    this.summernoteRubricHTML = this.ProjectService\n        .replaceAssetPaths(this.ProjectService.getProjectRubric());\n\n    let insertAssetToolTipText = this.$translate('INSERT_ASSET');\n    let insertAssetButton = this.UtilService.createInsertAssetButton(this,\n          this.projectId, null, null, 'rubric', insertAssetToolTipText);\n\n    // options to display in the summernote tool\n    this.summernoteRubricOptions = {\n      toolbar: [\n        ['style', ['style']],\n        ['font', ['bold', 'underline', 'clear']],\n        ['fontname', ['fontname']],\n        ['fontsize', ['fontsize']],\n        ['color', ['color']],\n        ['para', ['ul', 'ol', 'paragraph']],\n        ['table', ['table']],\n        ['insert', ['link', 'video']],\n        ['view', ['fullscreen', 'codeview', 'help']],\n        ['customButton', ['insertAssetButton']]\n      ],\n      height: 300,\n      disableDragAndDrop: true,\n      buttons: {\n        'insertAssetButton': insertAssetButton\n      }\n    };\n\n    this.projectURL = window.location.origin + this.ConfigService.getConfigParam('projectURL');\n\n    this.$scope.$on('currentAuthorsReceived', (event, args) => {\n      let currentAuthorsUsernames = args.currentAuthorsUsernames;\n      let myUserName = this.ConfigService.getMyUserName();\n      currentAuthorsUsernames\n          .splice(currentAuthorsUsernames.indexOf(myUserName), 1);\n      if (currentAuthorsUsernames.length > 0) {\n        this.currentAuthorsMessage = this.$translate('concurrentAuthorsWarning',\n            { currentAuthors: currentAuthorsUsernames.join(', ') });\n      } else {\n        this.currentAuthorsMessage = '';\n      }\n    });\n\n    this.$scope.$on('$destroy', () => {\n      this.ProjectService.notifyAuthorProjectEnd(this.projectId);\n    });\n\n    /*\n     * Listen for the assetSelected event which occurs when the author\n     * selects an asset from the choose asset popup to add to project rubric\n     * or choosing the script file.\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n      if (args != null && args.projectId == this.projectId &&\n          args.assetItem != null && args.assetItem.fileName != null) {\n        let assetFileName = args.assetItem.fileName;\n        if (args.target === 'rubric') {\n          let summernoteElement = $('#summernoteRubric_' + this.projectId);\n          let fullAssetPath =\n              this.ConfigService.getProjectAssetsDirectoryPath() +\n                  '/' + assetFileName;\n          if (this.UtilService.isImage(assetFileName)) {\n            /*\n             * move the cursor back to its position when the asset chooser\n             * popup was clicked\n             */\n            summernoteElement.summernote('editor.restoreRange');\n            summernoteElement.summernote('editor.focus');\n            summernoteElement.summernote(\n                'insertImage', fullAssetPath, assetFileName);\n          } else if (this.UtilService.isVideo(assetFileName)) {\n            /*\n             * move the cursor back to its position when the asset chooser\n             * popup was clicked\n             */\n            summernoteElement.summernote('editor.restoreRange');\n            summernoteElement.summernote('editor.focus');\n            let videoElement = document.createElement('video');\n            videoElement.controls = 'true';\n            videoElement.innerHTML =\n                '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n            summernoteElement.summernote('insertNode', videoElement);\n          }\n        } else if (args.target === 'scriptFilename') {\n          this.projectScriptFilename = assetFileName;\n          this.projectScriptFilenameChanged();\n        }\n      }\n      this.$mdDialog.hide();\n    });\n\n    this.$rootScope.$on('$stateChangeSuccess',\n        (event, toState, toParams, fromState, fromParams) => {\n      if (toState != null) {\n        let stateName = toState.name;\n        if (stateName == 'root.project') {\n          this.saveEvent('projectHomeViewOpened', 'Navigation');\n        } else if (stateName == 'root.project.node') {\n        } else if (stateName == 'root.project.asset') {\n          this.saveEvent('assetsViewOpened', 'Navigation');\n        } else if (stateName == 'root.project.info') {\n          this.saveEvent('projectInfoViewOpened', 'Navigation');\n        } else if (stateName == 'root.project.notebook') {\n          this.saveEvent('notebookViewOpened', 'Navigation');\n        }\n      }\n    });\n\n    this.$rootScope.$on('projectSaved', () => {\n      //this.saveEvent('projectSaved', 'Authoring');\n    });\n\n    /*\n     * Listen for the event to parse the project. This is so other\n     * controllers can trigger parsing the project in this controller.\n     */\n    this.$rootScope.$on('parseProject', () => {\n      this.refreshProject();\n    });\n\n    this.$rootScope.$on('scrollToBottom', () => {\n      this.scrollToBottomOfPage();\n    });\n\n    this.saveEvent('projectOpened', 'Navigation');\n  };\n\n  /**\n   * Launch the project in preview mode in a new tab\n   */\n  previewProject() {\n    let previewProjectEventData = { constraints: true };\n    this.saveEvent('projectPreviewed', 'Navigation', previewProjectEventData);\n    window.open(this.ConfigService.getConfigParam('previewProjectURL'));\n  };\n\n  /**\n   * Launch the project in preview mode without constraints in a new tab\n   */\n  previewProjectWithoutConstraints() {\n    let previewProjectEventData = { constraints: false };\n    this.saveEvent('projectPreviewed', 'Navigation', previewProjectEventData);\n    window.open(this.ConfigService.getConfigParam('previewProjectURL') +\n        '?constraints=false');\n  };\n\n  viewProjectAssets() {\n    this.$state.go('root.project.asset', {projectId: this.projectId});\n  };\n\n  viewProjectHistory() {\n    this.$state.go('root.project.history', {projectId: this.projectId});\n  };\n\n  viewNotebookSettings() {\n    this.$state.go('root.project.notebook', {projectId: this.projectId});\n  }\n\n  saveProject() {\n    let commitMessage = 'Made changes to the project.';\n    try {\n      // if projectJSONString is bad json,\n      // an exception will be thrown and it will not save.\n      this.ProjectService.saveProject(commitMessage)\n          .then((commitHistoryArray) => {\n        this.commitHistory = commitHistoryArray;\n        $('#commitMessageInput').val('');\n      });\n    } catch (error) {\n      // TODO: i18n\n      alert('Invalid JSON. Please check syntax. Aborting save.');\n      return;\n    }\n  };\n\n  /**\n   * Make a request to download this project as a zip file\n   */\n  downloadProject() {\n    window.location.href = this.ConfigService.getWISEBaseURL()\n        + '/project/export/' + this.projectId;\n  }\n\n  /**\n   * Close authoring for the current project and bring user back to main AT page\n   */\n  closeProject() {\n    this.$state.go('root.main');\n  };\n\n  /**\n   * Get the node position\n   * @param nodeId the node id\n   * @returns the node position\n   */\n  getNodePositionById(nodeId) {\n    return this.ProjectService.getNodePositionById(nodeId);\n  };\n\n  /**\n   * Get the components that are in the specified node id.\n   * @param nodeId the node id\n   * @returns components in the node\n   */\n  getComponentsByNodeId(nodeId) {\n    return this.ProjectService.getComponentsByNodeId(nodeId);\n  }\n\n  /**\n   * Returns a list of possible criteria for the specified node and component\n   * @param nodeId the node id\n   * @param componentId the component id in the node\n   */\n  getPossibleTransitionCriteria(nodeId, componentId) {\n    return this.ProjectService\n        .getPossibleTransitionCriteria(nodeId, componentId);\n  }\n\n  /**\n   * Get the node title for a node\n   * @param nodeId the node id\n   * @returns the node title\n   */\n  getNodeTitleByNodeId(nodeId) {\n    return this.ProjectService.getNodeTitleByNodeId(nodeId);\n  };\n\n  /**\n   * Check if a node id is for a group\n   * @param nodeId\n   * @returns whether the node is a group node\n   */\n  isGroupNode(nodeId) {\n    return this.ProjectService.isGroupNode(nodeId);\n  };\n\n  /**\n   * A node was clicked so we will go to the node authoring view\n   * @param nodeId\n   */\n  nodeClicked(nodeId) {\n    this.unselectAllItems();\n    this.TeacherDataService\n        .endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\n    this.$state\n        .go('root.project.node', {projectId: this.projectId, nodeId: nodeId});\n  };\n\n  /**\n   * The constraint icon on a step in the project view was clicked.\n   * We will open the constraint view for the step.\n   * @param nodeId The node id of the step.\n   */\n  constraintIconClicked(nodeId) {\n    this.TeacherDataService\n      .endCurrentNodeAndSetCurrentNodeByNodeId(nodeId);\n    this.$state\n      .go('root.project.nodeConstraints', {projectId: this.projectId, nodeId: nodeId});\n  }\n\n  /**\n   * The branch icon on a step in the project view was clicked.\n   * We will open the transitions view for the step.\n   * @param nodeId The node id of the step.\n   */\n  branchIconClicked(nodeId) {\n    this.TeacherDataService\n      .endCurrentNodeAndSetCurrentNodeByNodeId(nodeId);\n    this.$state\n      .go('root.project.nodeEditPaths', {projectId: this.projectId, nodeId: nodeId});\n  }\n\n  /**\n   * Create a new group (activity)\n   */\n  createGroup() {\n    /*\n     * set the group into this variable to hold it temporarily while the\n     * author decides where to place it\n     */\n    this.nodeToAdd = this.ProjectService.createGroup(this.createGroupTitle);\n\n    this.showCreateGroup = false;\n    this.createGroupTitle = '';\n    this.insertGroupMode = true;\n    this.createMode = true;\n  }\n\n  /**\n   * Create a new node (step)\n   */\n  createNode() {\n    /*\n     * set the node into this variable to hold it temporarily while the\n     * author decides where to place it\n     */\n    this.nodeToAdd = this.ProjectService.createNode(this.createNodeTitle);\n\n    this.showCreateNode = false;\n    this.createNodeTitle = '';\n    this.insertNodeMode = true;\n    this.createMode = true;\n  }\n\n  /**\n   * Insert the node(s) inside\n   * @param nodeId the node id of the group that we will insert into\n   */\n  insertInside(nodeId) {\n    // TODO check that we are inserting into a group\n    if (this.createMode) {\n      this.handleCreateModeInsert(nodeId, 'inside');\n    } else if (this.moveMode) {\n      this.handleMoveModeInsert(nodeId, 'inside');\n    } else if (this.copyMode) {\n      this.handleCopyModeInsert(nodeId, 'inside');\n    } else if (this.importMode) {\n      this.importSelectedNodes(nodeId);\n    }\n  }\n\n  /**\n   * Insert the node(s) after\n   * @param nodeId the node id of the node we will insert after\n   */\n  insertAfter(nodeId) {\n    if (this.createMode) {\n      this.handleCreateModeInsert(nodeId, 'after');\n    } else if (this.moveMode) {\n      this.handleMoveModeInsert(nodeId, 'after');\n    } else if (this.copyMode) {\n      this.handleCopyModeInsert(nodeId, 'after');\n    } else if (this.importMode) {\n      this.importSelectedNodes(nodeId);\n    }\n  }\n\n  /**\n   * Create a node and then insert it in the specified location\n   * @param nodeId insert the new node inside or after this node id\n   * @param moveTo whether to insert 'inside' or 'after' the nodeId parameter\n   */\n  handleCreateModeInsert(nodeId, moveTo) {\n    if (moveTo === 'inside') {\n      this.ProjectService.createNodeInside(this.nodeToAdd, nodeId);\n    } else if (moveTo === 'after') {\n      this.ProjectService.createNodeAfter(this.nodeToAdd, nodeId);\n    } else {\n      // an unspecified moveTo was provided\n      return;\n    }\n\n    let newNodes = [this.nodeToAdd];\n    let newNode = this.nodeToAdd;\n\n    /*\n     * clear this variable that we used to hold the node we inserted.\n     * since we have inserted the node we don't need a handle to it\n     * anymore\n     */\n    this.nodeToAdd = null;\n\n    this.createMode = false;\n    this.insertGroupMode = false;\n    this.insertNodeMode = false;\n    this.temporarilyHighlightNewNodes(newNodes);\n\n    this.checkPotentialStartNodeIdChangeThenSaveProject().then(() => {\n      if (newNode != null) {\n        let nodeCreatedEventData = {\n          'nodeId': newNode.id,\n          'title': this.ProjectService\n              .getNodePositionAndTitleByNodeId(newNode.id)\n        };\n\n        if (this.ProjectService.isGroupNode(newNode.id)) {\n          this.saveEvent('activityCreated', 'Authoring', nodeCreatedEventData);\n        } else {\n          this.saveEvent('stepCreated', 'Authoring', nodeCreatedEventData);\n        }\n      }\n    });\n  }\n\n  /**\n   * Move a node and insert it in the specified location\n   * @param nodeId insert the new node inside or after this node id\n   * @param moveTo whether to insert 'inside' or 'after' the nodeId parameter\n   */\n  handleMoveModeInsert(nodeId, moveTo) {\n    let selectedNodeIds = this.getSelectedNodeIds();\n    if (selectedNodeIds != null && selectedNodeIds.indexOf(nodeId) != -1) {\n      /*\n       * the user is trying to insert the selected node ids after\n       * itself so we will not allow that\n       */\n      if (selectedNodeIds.length == 1) {\n        alert(this\n            .$translate('youAreNotAllowedToInsertTheSelectedItemAfterItself'));\n      } else if (selectedNodeIds.length > 1) {\n        alert(this\n            .$translate('youAreNotAllowedToInsertTheSelectedItemsAfterItself'));\n      }\n    } else {\n      let movedNodes = [];\n      for (let selectedNodeId of selectedNodeIds) {\n        let node = {\n          'nodeId': selectedNodeId,\n          'fromTitle': this.ProjectService\n              .getNodePositionAndTitleByNodeId(selectedNodeId)\n        };\n        movedNodes.push(node);\n      }\n\n      let newNodes = [];\n      if (moveTo === 'inside') {\n        newNodes = this.ProjectService.moveNodesInside(selectedNodeIds, nodeId);\n      } else if (moveTo === 'after') {\n        newNodes = this.ProjectService.moveNodesAfter(selectedNodeIds, nodeId);\n      } else {\n        // an unspecified moveTo was provided\n        return;\n      }\n\n      this.moveMode = false;\n      this.insertGroupMode = false;\n      this.insertNodeMode = false;\n      this.temporarilyHighlightNewNodes(newNodes);\n      this.checkPotentialStartNodeIdChangeThenSaveProject().then(() => {\n        if (newNodes != null && newNodes.length > 0) {\n          let firstNewNode = newNodes[0];\n          if (firstNewNode != null && firstNewNode.id != null) {\n            for (let n = 0; n < movedNodes.length; n++) {\n              let node = movedNodes[n];\n              let newNode = newNodes[n];\n              if (node != null && newNode != null) {\n                node.toTitle = this.ProjectService\n                    .getNodePositionAndTitleByNodeId(newNode.id);\n              }\n            }\n\n            if (this.ProjectService.isGroupNode(firstNewNode.id)) {\n              let nodeMovedEventData = { activitiesMoved: movedNodes };\n              this.saveEvent('activityMoved', 'Authoring', nodeMovedEventData);\n            } else {\n              let nodeMovedEventData = { stepsMoved: movedNodes };\n              this.saveEvent('stepMoved', 'Authoring', nodeMovedEventData);\n            }\n          }\n        }\n      });\n    }\n  }\n\n  /**\n   * Copy a node and insert it in the specified location\n   * @param nodeId insert the new node inside or after this node id\n   * @param moveTo whether to insert 'inside' or 'after' the nodeId parameter\n   */\n  handleCopyModeInsert(nodeId, moveTo) {\n    let copiedNodes = [];\n    let selectedNodeIds = this.getSelectedNodeIds();\n    for (let selectedNodeId of selectedNodeIds) {\n      let node = {\n        'fromNodeId': selectedNodeId,\n        'fromTitle': this.ProjectService\n            .getNodePositionAndTitleByNodeId(selectedNodeId)\n      };\n      copiedNodes.push(node);\n    }\n\n    let newNodes = [];\n    if (moveTo === 'inside') {\n      newNodes = this.ProjectService.copyNodesInside(selectedNodeIds, nodeId);\n    } else if (moveTo === 'after') {\n      newNodes = this.ProjectService.copyNodesAfter(selectedNodeIds, nodeId);\n    } else {\n      // an unspecified moveTo was provided\n      return;\n    }\n\n    this.copyMode = false;\n    this.insertGroupMode = false;\n    this.insertNodeMode = false;\n    this.temporarilyHighlightNewNodes(newNodes);\n    this.checkPotentialStartNodeIdChangeThenSaveProject().then(() => {\n      if (newNodes != null && newNodes.length > 0) {\n        let firstNewNode = newNodes[0];\n        if (firstNewNode != null && firstNewNode.id != null) {\n          for (let n = 0; n < copiedNodes.length; n++) {\n            let node = copiedNodes[n];\n            let newNode = newNodes[n];\n            if (node != null && newNode != null) {\n              node.toNodeId = newNode.id;\n              node.toTitle = this.ProjectService\n                  .getNodePositionAndTitleByNodeId(newNode.id);\n            }\n          }\n\n          if (this.ProjectService.isGroupNode(firstNewNode.id)) {\n            let nodeCopiedEventData = { activitiesCopied: copiedNodes };\n            this.saveEvent('activityCopied', 'Authoring', nodeCopiedEventData);\n          } else {\n            let nodeCopiedEventData = { stepsCopied: copiedNodes };\n            this.saveEvent('stepCopied', 'Authoring', nodeCopiedEventData);\n          }\n        }\n      }\n    });\n  }\n\n  /**\n   * Import the selected steps and draw attention to them by highlighting them\n   * and scrolling to them.\n   * @param nodeIdToInsertInsideOrAfter If this is a group, we will make the\n   * new step the first step in the group. If this is a step, we will place\n   * the new step after it.\n   */\n  importSelectedNodes(nodeIdToInsertInsideOrAfter) {\n    let selectedNodes = this.getSelectedNodesToImport();\n    let selectedNodeTitles = this.getSelectedNodeTitlesToImport();\n    let toProjectId = this.ConfigService.getConfigParam('projectId');\n    let fromProjectId = this.importProjectId;\n\n    this.performImport(nodeIdToInsertInsideOrAfter).then((newNodes) => {\n      this.checkPotentialStartNodeIdChangeThenSaveProject().then(() => {\n        let doScrollToNewNodes = true;\n        this.temporarilyHighlightNewNodes(newNodes, doScrollToNewNodes);\n\n        let stepsImported = [];\n        for (let n = 0; n < selectedNodes.length; n++) {\n          let selectedNode = selectedNodes[n];\n          let selectedNodeTitle = selectedNodeTitles[n];\n          let newNode = newNodes[n];\n\n          let stepImported = {\n            fromProjectId: parseInt(fromProjectId),\n            fromNodeId: selectedNode.id,\n            fromTitle: selectedNodeTitle,\n            toNodeId: newNode.id,\n            toTitle: this.ProjectService\n              .getNodePositionAndTitleByNodeId(newNode.id)\n          };\n          stepsImported.push(stepImported);\n        }\n\n        let stepsImportedEventData = { 'stepsImported': stepsImported };\n        this.saveEvent('stepImported', 'Authoring', stepsImportedEventData);\n      });\n    });\n  }\n\n  /**\n   * Import the step and place it in the chosen location\n   * @param nodeIdToInsertInsideOrAfter If this is a group, we will make the\n   * new step the first step in the group. If this is a step, we will place\n   * the new step after it.\n   */\n  performImport(nodeIdToInsertInsideOrAfter) {\n    let selectedNodes = this.getSelectedNodesToImport();\n    let toProjectId = this.ConfigService.getConfigParam('projectId');\n    let fromProjectId = this.importProjectId;\n\n    return this.ProjectService.copyNodes(selectedNodes, fromProjectId,\n        toProjectId, nodeIdToInsertInsideOrAfter).then((newNodes) => {\n      this.refreshProject();\n      this.insertNodeMode = false;\n      this.toggleView('project');\n\n      this.importProjectIdToOrder = {};\n      this.importProjectItems = [];\n      this.importMyProjectId = null;\n      this.importLibraryProjectId = null;\n      this.importProjectId = null;\n      this.importProject = null;\n\n      /*\n       * go back to the project view and\n       * refresh the project assets in case any of the imported\n       * steps also imported assets\n       */\n      this.showProjectHome();\n      this.ProjectAssetService.retrieveProjectAssets();\n      return newNodes;\n    });\n  }\n\n  /**\n   * Turn on copy mode\n   */\n  copy() {\n    // make sure there is at least one item selected\n    let selectedNodeIds = this.getSelectedNodeIds();\n    if (selectedNodeIds == null || selectedNodeIds.length == 0) {\n      alert(this.$translate('pleaseSelectAnItemToCopyAndThenClickTheCopyButtonAgain'));\n    } else {\n      let selectedItemTypes = this.getSelectedItemTypes();\n      if (selectedItemTypes.length === 1 && selectedItemTypes[0] === 'node') {\n        this.insertNodeMode = true;\n        this.copyMode = true;\n      } else if (selectedItemTypes.length === 1 && selectedItemTypes[0] === 'group') {\n        alert(this.$translate('youCannotCopyActivitiesAtThisTime'));\n      }\n    }\n  }\n\n  /**\n   * Turn on move mode\n   * TODO refactor. too many nesting. Rename function to \"turnOnMoveMode\"?\n   */\n  move() {\n    // make sure there is at least one item selected\n    let selectedNodeIds = this.getSelectedNodeIds();\n    if (selectedNodeIds == null || selectedNodeIds.length == 0) {\n      alert(this.$translate('pleaseSelectAnItemToMoveAndThenClickTheMoveButtonAgain'));\n    } else {\n      let selectedItemTypes = this.getSelectedItemTypes();\n      if (selectedItemTypes.length === 1 && selectedItemTypes[0] === 'node') {\n        this.insertNodeMode = true;\n        this.moveMode = true;\n      } else if (selectedItemTypes.length === 1 && selectedItemTypes[0] === 'group') {\n        this.insertGroupMode = true;\n        this.moveMode = true;\n      }\n    }\n  }\n\n  /**\n   * Delete the selected nodes after asking user for confirmation\n   * TODO refactor too many nesting\n   */\n  delete() {\n    let selectedNodeIds = this.getSelectedNodeIds();\n    if (selectedNodeIds == null || selectedNodeIds.length == 0) {\n      alert(this.$translate('pleaseSelectAnItemToDeleteAndThenClickTheDeleteButtonAgain'));\n    } else {\n      let confirmMessage = '';\n      if (selectedNodeIds.length == 1) {\n        confirmMessage = this.$translate('areYouSureYouWantToDeleteTheSelectedItem');\n      } else if (selectedNodeIds.length > 1) {\n        confirmMessage = this.$translate('areYouSureYouWantToDeleteTheXSelectedItems',\n            { numItems: selectedNodeIds.length });\n      }\n      if (confirm(confirmMessage)) {\n        let deletedStartNodeId = false;\n        let activityDeleted = false;\n        let stepDeleted = false;\n        let stepsDeleted = [];\n        let activitiesDeleted = [];\n        for (let nodeId of selectedNodeIds) {\n          let node = this.ProjectService.getNodeById(nodeId);\n          let tempNode = {};\n\n          if (node != null) {\n            tempNode.nodeId = node.id;\n            tempNode.title =\n                this.ProjectService.getNodePositionAndTitleByNodeId(node.id);\n          }\n\n          if (this.ProjectService.isStartNodeId(nodeId)) {\n            deletedStartNodeId = true;\n          }\n\n          if (this.ProjectService.isGroupNode(nodeId)) {\n            activityDeleted = true;\n            let stepsInActivityDeleted = [];\n            for (let stepNodeId of node.ids) {\n              let stepTitle = this.ProjectService\n                  .getNodePositionAndTitleByNodeId(stepNodeId);\n\n              // create an object with the step id and title\n              let stepObject = {\n                'nodeId': stepNodeId,\n                'title': stepTitle\n              };\n              stepsInActivityDeleted.push(stepObject);\n            }\n            tempNode.stepsInActivityDeleted = stepsInActivityDeleted;\n            activitiesDeleted.push(tempNode);\n          } else {\n            stepDeleted = true;\n            stepsDeleted.push(tempNode);\n          }\n          this.ProjectService.deleteNode(nodeId);\n        }\n\n        if (deletedStartNodeId) {\n          this.updateStartNodeId();\n        }\n\n        if (activityDeleted) {\n          let activitiesDeletedEventData = {\n            'activitiesDeleted': activitiesDeleted\n          };\n          this.saveEvent('activityDeleted', 'Authoring',\n              activitiesDeletedEventData);\n        }\n\n        if (stepDeleted) {\n          let stepDeletedEventData = {\n            'stepsDeleted': stepsDeleted\n          };\n          this.saveEvent('stepDeleted', 'Authoring', stepDeletedEventData);\n        }\n\n        this.ProjectService.saveProject();\n        this.refreshProject();\n      }\n    }\n  }\n\n  /**\n   * Get the ids of the selected nodes, both active and inactive.\n   * @returns an array of node ids that are selected\n   */\n  getSelectedNodeIds() {\n    let selectedNodeIds = [];\n    angular.forEach(this.items, function(value, key) {\n      if (value.checked) {\n        selectedNodeIds.push(key);\n      }\n    }, selectedNodeIds);\n\n    if (this.inactiveNodes != null) {\n      for (let inactiveNode of this.inactiveNodes) {\n        if (inactiveNode != null && inactiveNode.checked) {\n          selectedNodeIds.push(inactiveNode.id);\n        }\n      }\n    }\n    return selectedNodeIds;\n  }\n\n  /**\n   * Get the distinct types of the selected items, both active and inactive.\n   * @returns an array of item types. possible items are group or node.\n   */\n  getSelectedItemTypes() {\n    let selectedItemTypes = [];\n\n    angular.forEach(this.items, function(value, key) {\n      if (value.checked) {\n        let node = this.ProjectService.getNodeById(key);\n        if (node != null) {\n          let nodeType = node.type;\n          if (selectedItemTypes.indexOf(nodeType) == -1) {\n            selectedItemTypes.push(nodeType);\n          }\n        }\n      }\n    }, this);\n\n    if (this.inactiveNodes != null) {\n      for (let inactiveNode of this.inactiveNodes) {\n        if (inactiveNode != null && inactiveNode.checked) {\n          let inactiveNodeType = inactiveNode.type;\n          if (selectedItemTypes.indexOf(inactiveNodeType) == -1) {\n            selectedItemTypes.push(inactiveNodeType);\n          }\n        }\n      }\n    }\n\n    return selectedItemTypes;\n  }\n\n  unselectAllItems() {\n    angular.forEach(this.items, function(value, key) {\n      value.checked = false;\n    });\n    angular.forEach(this.inactiveGroupNodes, function(value, key) {\n      value.checked = false;\n    });\n    angular.forEach(this.inactiveStepNodes, function(value, key) {\n      value.checked = false;\n    });\n    this.stepNodeSelected = false;\n    this.activityNodeSelected = false;\n  }\n\n  /**\n   * Toggle the create group input\n   */\n  creatNewActivityClicked() {\n    this.createGroupTitle = '';\n    this.toggleView('createGroup');\n    if (this.showCreateGroup) {\n      this.$timeout(() => {\n        $('#createGroupTitle').focus();\n      });\n    }\n  }\n\n  /**\n   * Toggle the create node input\n   */\n  createNewStepClicked() {\n    this.createNodeTitle = '';\n    this.toggleView('createNode');\n    if (this.showCreateNode) {\n      this.$timeout(() => {\n        $('#createNodeTitle').focus();\n      });\n    }\n  }\n\n  /**\n   * Cancel the move mode\n   */\n  cancelMove() {\n    this.insertGroupMode = false;\n    this.insertNodeMode = false;\n    this.nodeToAdd = null;\n    this.createMode = false;\n    this.moveMode = false;\n    this.copyMode = false;\n    this.importMode = false;\n    this.unselectAllItems();\n  }\n\n  /**\n   * Update the start node id by traversing start ids until a\n   * node id is found.\n   */\n  updateStartNodeId() {\n    let newStartNodeId = null;\n    let startGroupId = this.ProjectService.getStartGroupId();\n    let node = this.ProjectService.getNodeById(startGroupId);\n    let done = false;\n\n    // recursively traverse the start ids\n    while (!done) {\n      if (node == null) {\n        // base case in case something went wrong\n        done = true;\n      } else if (this.ProjectService.isGroupNode(node.id)) {\n        // the node is a group node so we will get its start node\n        node = this.ProjectService.getNodeById(node.startId);\n      } else if (this.ProjectService.isApplicationNode(node.id)) {\n        // the node is a step node so we have found the new start node id\n        newStartNodeId = node.id;\n        done = true;\n      } else {\n        // base case in case something went wrong\n        done = true;\n      }\n    }\n\n    if (newStartNodeId) {\n      this.ProjectService.setStartNodeId(newStartNodeId);\n    }\n  }\n\n  /**\n   * Check if the start node id for the project could potentially\n   * change.\n   */\n  checkPotentialStartNodeIdChange() {\n    return this.$q((resolve, reject) => {\n      let firstLeafNodeId = this.ProjectService.getFirstLeafNodeId();\n      if (firstLeafNodeId == null) {\n        // there are no steps in the project\n        // set the start node id to empty string\n        this.ProjectService.setStartNodeId('');\n        resolve();\n      } else {\n        // we have found a leaf node\n        let currentStartNodeId = this.ProjectService.getStartNodeId();\n        if (currentStartNodeId != firstLeafNodeId) {\n          // update the start node id\n          this.ProjectService.setStartNodeId(firstLeafNodeId);\n          resolve();\n        } else {\n          resolve();\n        }\n      }\n    });\n  }\n\n  /**\n   * Check if the start node id has changed and then save the project\n   */\n  checkPotentialStartNodeIdChangeThenSaveProject() {\n    return this.checkPotentialStartNodeIdChange().then(() => {\n      this.ProjectService.saveProject();\n      this.refreshProject();\n    });\n  }\n\n  /**\n   * Recalculates step numbering\n   */\n  refreshProject() {\n    /*\n     * Use a timeout before we refresh the project in order to allow the\n     * spinning progress indicator to show up before the browser starts\n     * blocking/freezing.\n     */\n    this.$timeout(() => {\n      this.ProjectService.parseProject();\n      this.items = this.ProjectService.idToOrder;\n      this.inactiveGroupNodes = this.ProjectService.getInactiveGroupNodes();\n      this.inactiveStepNodes = this.ProjectService.getInactiveStepNodes();\n      this.inactiveNodes = this.ProjectService.getInactiveNodes();\n      this.idToNode = this.ProjectService.getIdToNode();\n      this.unselectAllItems();\n    });\n  }\n\n  /**\n   * The project title changed so we will update the project title in the\n   * project service and save the project\n   */\n  projectTitleChanged() {\n    this.ProjectService.setProjectTitle(this.projectTitle);\n    this.ProjectService.saveProject();\n  }\n\n  /**\n   * Toggle the import view and populate the project drop downs if necessary\n   */\n  importStepClicked() {\n    this.toggleView('importStep');\n\n    if (this.importMode) {\n      if (this.myProjectsList == null) {\n        this.myProjectsList = this.ConfigService.getAuthorableProjects();\n      }\n\n      if (this.libraryProjectsList == null) {\n        this.ConfigService.getLibraryProjects().then((libraryProjectsList) => {\n          this.libraryProjectsList = libraryProjectsList;\n        });\n      }\n    }\n  }\n\n  /**\n   * The author has chosen an authorable project to import from\n   * @param importProjectId the project id to import from\n   */\n  showMyImportProject(importProjectId) {\n    this.importLibraryProjectId = null;\n    this.showImportProject(importProjectId);\n  }\n\n  /**\n   * The author has chosen a library project to import from\n   * @param importProjectId the project id to import from\n   */\n  showLibraryImportProject(importProjectId) {\n    this.importMyProjectId = null;\n    this.showImportProject(importProjectId);\n  }\n\n  /**\n   * Show the project we want to import steps from\n   * @param importProjectId the import project id\n   */\n  showImportProject(importProjectId) {\n    this.importProjectId = importProjectId;\n    if (this.importProjectId == null) {\n      // clear all the import project values\n      this.importProjectIdToOrder = {};\n      this.importProjectItems = [];\n      this.importMyProjectId = null;\n      this.importLibraryProjectId = null;\n      this.importProjectId = null;\n      this.importProject = null;\n    } else {\n      this.ProjectService.retrieveProjectById(this.importProjectId)\n          .then((projectJSON) => {\n        this.importProject = projectJSON;\n        const nodeOrderOfProject = this.ProjectService\n            .getNodeOrderOfProject(this.importProject);\n        this.importProjectIdToOrder = nodeOrderOfProject.idToOrder;\n        this.importProjectItems = nodeOrderOfProject.nodes;\n      });\n    }\n  }\n\n  /**\n   * Preview the import project in a new tab\n   */\n  previewImportProject() {\n    if (this.importProject != null) {\n      window.open(this.importProject.previewProjectURL);\n    }\n  }\n\n  /**\n   * Preview the import step in a new tab\n   * @param node\n   */\n  previewImportNode(node) {\n    if (node != null) {\n      const nodeId = node.id;\n      const previewProjectURL = this.importProject.previewProjectURL;\n      const previewStepURL  = previewProjectURL + '#/vle/' + nodeId;\n      window.open(previewStepURL);\n    }\n  }\n\n  /**\n   * Import the selected steps\n   */\n  importSteps() {\n    let selectedNodes = this.getSelectedNodesToImport();\n    if (selectedNodes == null || selectedNodes.length == 0) {\n      // TODO i18n\n      alert('Please select a step to import.');\n    } else {\n      /*\n       * hide the import view because we want to go back to the\n       * project view so that the author can choose where to place\n       * the new steps\n       */\n      this.showImportView = false;\n      this.insertNodeMode = true;\n      this.projectMode = true;\n    }\n  }\n\n  /**\n   * Get the selected nodes to import\n   * @return an array of selected nodes\n   */\n  getSelectedNodesToImport() {\n    let selectedNodes = [];\n    for (let item of this.importProjectItems) {\n      if (item.checked) {\n        selectedNodes.push(item.node);\n      }\n    }\n    return selectedNodes;\n  }\n\n  /**\n   * Show the view to edit the project rubric\n   */\n  editProjectRubricClicked() {\n    this.toggleView('rubric');\n  }\n\n  /**\n   * Show the advanced authoring view\n   */\n  advancedClicked() {\n    this.toggleView('advanced');\n  }\n\n  /**\n   * The show JSON button was clicked\n   */\n  showJSONClicked() {\n    if (this.showJSONAuthoring) {\n      // we were showing the JSON view and the author now wants to hide it\n      if (this.isJSONValid()) {\n        this.toggleJSONAuthoringView();\n        this.UtilService.hideJSONValidMessage();\n      } else {\n        let answer = confirm(this.$translate('jsonInvalidErrorMessage'));\n        if (answer) {\n          // the author wants to revert back to the last valid JSON\n          this.toggleJSONAuthoringView();\n          this.UtilService.hideJSONValidMessage();\n        }\n      }\n    } else {\n      // we were not showing the JSON view and now the author wants to show it\n      this.toggleJSONAuthoringView();\n      this.projectJSONString = angular.toJson(this.ProjectService.project, 4);\n      this.UtilService.showJSONValidMessage();\n    }\n  }\n\n  isJSONValid() {\n    try {\n      angular.fromJson(this.projectJSONString);\n      return true;\n    } catch(e) {\n      return false;\n    }\n  }\n\n  toggleJSONAuthoringView() {\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n  }\n\n  /**\n   * Save the project JSON to the server if the JSON is valid.\n   */\n  autoSaveProjectJSONString() {\n    try {\n      this.saveProjectJSON(this.projectJSONString);\n      this.UtilService.showJSONValidMessage();\n    } catch(e) {\n      this.UtilService.showJSONInvalidMessage();\n    }\n  }\n\n  /**\n   * Save the project JSON string to the server\n   * @param projectJSONString\n   */\n  saveProjectJSON(projectJSONString) {\n    let project = angular.fromJson(projectJSONString);\n    this.ProjectService.setProject(project);\n    let scriptFilename = this.ProjectService.getProjectScriptFilename();\n    if (scriptFilename != null) {\n      this.projectScriptFilename = scriptFilename;\n    }\n    this.checkPotentialStartNodeIdChangeThenSaveProject();\n  }\n\n  /**\n   * The author has changed the rubric, so save the changes\n   */\n  summernoteRubricHTMLChanged() {\n    let html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    this.ProjectService.setProjectRubric(html);\n    this.ProjectService.saveProject();\n  }\n\n  /**\n   * Check if the specified node is in any branch path\n   * @param nodeId the node id of the node\n   * @return whether the node is in any branch path\n   */\n  isNodeInAnyBranchPath(nodeId) {\n    return this.ProjectService.isNodeInAnyBranchPath(nodeId);\n  }\n\n  /**\n   * The project script file name changed\n   */\n  projectScriptFilenameChanged() {\n    // update the project script file name in the project service\n    this.ProjectService.setProjectScriptFilename(this.projectScriptFilename);\n\n    if (this.showJSONAuthoring) {\n      /*\n       * we are showing the project JSON authoring so we need to update\n       * the JSON string that we are showing in the textarea\n       */\n      this.projectJSONString = angular.toJson(this.ProjectService.project, 4);\n    }\n    this.ProjectService.saveProject();\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose an image for the\n   * project script filename\n   */\n  chooseProjectScriptFilename() {\n    let openAssetChooserParams = {\n      popup: true,\n      projectId: this.projectId,\n      target: 'scriptFilename'\n    };\n    this.$rootScope.$broadcast('openAssetChooser', openAssetChooserParams);\n  }\n\n  /**\n   * Show the appropriate authoring view\n   * @param view the view to show\n   */\n  toggleView(view) {\n    // clear the input element for creating a new activity\n    this.createGroupTitle = '';\n\n    // clear the input element for creating a new step\n    this.createNodeTitle = '';\n\n    if (view == 'project') {\n      // we are showing the regular project view\n      this.showCreateGroup = false;\n      this.showCreateNode = false;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = false;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n      this.projectMode = true;\n    } else if (view == 'createGroup') {\n      // toggle the create activity view\n      this.showCreateGroup = !this.showCreateGroup;\n      this.showCreateNode = false;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = false;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n\n      // also show the project view\n      this.projectMode = true;\n    } else if (view == 'createNode') {\n      // toggle the create step view\n      this.showCreateGroup = false;\n      this.showCreateNode = !this.showCreateNode;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = false;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n\n      // also show the project view\n      this.projectMode = true;\n    } else if (view == 'importStep') {\n      // toggle the import step view\n      this.showCreateGroup = false;\n      this.showCreateNode = false;\n      this.importMode = !this.importMode;\n      this.showImportView = !this.showImportView;\n      this.editProjectRubricMode = false;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n\n      // if the import view is shown, do not show the project view\n      this.projectMode = !this.importMode;\n    } else if (view == 'rubric') {\n      // toggle the rubric view\n      this.showCreateGroup = false;\n      this.showCreateNode = false;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = !this.editProjectRubricMode;\n      this.advancedMode = false;\n      this.showJSONAuthoring = false;\n\n      // if the rubric view is shown, do not show the project view\n      this.projectMode = !this.editProjectRubricMode;\n    } else if (view == 'advanced') {\n      // toggle the advanced view\n      this.showCreateGroup = false;\n      this.showCreateNode = false;\n      this.importMode = false;\n      this.showImportView = false;\n      this.editProjectRubricMode = false;\n      this.advancedMode = !this.advancedMode;\n      this.showJSONAuthoring = false;\n\n      // if the advanced view is shown, do not show the project view\n      this.projectMode = !this.advancedMode;\n    }\n    if (!this.showJSONAuthoring) {\n      this.UtilService.hideJSONValidMessage();\n    }\n  }\n\n  /**\n   * Go back to a previous page, which is different based on which page\n   * the author is currently on.\n   */\n  backButtonClicked() {\n    if (this.showImportView) {\n      this.toggleView('project');\n    } else if (this.editProjectRubricMode) {\n      this.toggleView('project');\n    } else if (this.advancedMode) {\n      this.toggleView('project');\n    } else {\n      this.$state.go('root.main');\n    }\n  }\n\n  /**\n   * Show the regular project view\n   */\n  projectHomeClicked() {\n    // show the regular project view\n    this.showProjectHome();\n  }\n\n  /**\n   * Show the regular project view\n   */\n  showProjectHome() {\n    // we are going to the project view so we will set the current node to null\n    this.TeacherDataService.setCurrentNode(null);\n\n    // show the regular project view\n    this.toggleView('project');\n    this.scrollToTopOfPage();\n  }\n\n  scrollToTopOfPage() {\n    this.$anchorScroll('top');\n  }\n\n  scrollToBottomOfPage() {\n    $('#content').animate({\n      scrollTop: $('#bottom').prop('offsetTop')\n    }, 1000);\n  }\n\n  /**\n   * Creating a group was cancelled, so show the project regular project view\n   */\n  cancelCreateGroupClicked() {\n    this.toggleView('project');\n  }\n\n  /**\n   * Creating a node was cancelled, so show the project view\n   */\n  cancelCreateNodeClicked() {\n    this.toggleView('project');\n  }\n\n  /**\n   * Temporarily highlight the new nodes to draw attention to them\n   * @param newNodes the new nodes to highlight\n   * @param doScrollToNewNodes if true, scroll to the first new node added\n   * TODO: can we remove the null checks: ensure that newNodes is never null?\n   */\n  temporarilyHighlightNewNodes(newNodes, doScrollToNewNodes = false) {\n    this.$timeout(() => {\n      if (newNodes != null && newNodes.length > 0) {\n        for (let newNode of newNodes) {\n          if (newNode != null) {\n            this.UtilService.temporarilyHighlightElement(newNode.id);\n          }\n        }\n        if (doScrollToNewNodes) {\n          let firstNodeElementAdded = $('#' + newNodes[0].id);\n          if (firstNodeElementAdded != null) {\n            $('#content').animate({\n              scrollTop: firstNodeElementAdded.prop('offsetTop') - 60\n            }, 1000);\n          }\n        }\n      }\n    });\n  }\n\n  /**\n   * Save an Authoring Tool event\n   * @param eventName the name of the event\n   * @param category the category of the event\n   * example 'Navigation' or 'Authoring'\n   * @param data (optional) an object that contains more specific data about\n   * the event\n   */\n  saveEvent(eventName, category, data) {\n    let context = 'AuthoringTool';\n    let nodeId = null;\n    let componentId = null;\n    let componentType = null;\n\n    if (data == null) {\n      data = {};\n    }\n    this.TeacherDataService.saveEvent(context, nodeId, componentId,\n      componentType, category, eventName, data);\n  }\n\n  /**\n   * Get the selected node titles that we are importing\n   * @return an array of node titles that may include the step numbers\n   */\n  getSelectedNodeTitlesToImport() {\n    let selectedNodeTitles = [];\n    let selectedNodes = this.getSelectedNodesToImport();\n    for (let n = 0; n < selectedNodes.length; n++) {\n      let selectedNode = selectedNodes[n];\n      if (selectedNode != null) {\n        // get the step number and title from the import project\n        let tempNode = this.importProjectIdToOrder[selectedNode.id];\n        let stepNumber = tempNode.stepNumber;\n        let title = '';\n\n        if (stepNumber == null) {\n          title = selectedNode.title;\n        } else {\n          title = stepNumber + ': ' + selectedNode.title;\n        }\n        selectedNodeTitles[n] = title;\n      }\n    }\n    return selectedNodeTitles;\n  }\n\n  /**\n   * Get the background color for a step\n   * @param nodeId get the background color for a step in the project view\n   * @return If the node is in a branch path it will return a color. If the\n   * node is not in a branch path it will return null.\n   */\n  getStepBackgroundColor(nodeId) {\n    let color = null;\n    let branchPathLetter = this.ProjectService.getBranchPathLetter(nodeId);\n    if (branchPathLetter != null) {\n      // the node is in a branch path\n\n      // get the ascii code for the letter. example A=65, B=66, C=67, etc.\n      let letterASCIICode = branchPathLetter.charCodeAt(0);\n\n      // get the branch path number A=0, B=1, C=2, etc.\n      let branchPathNumber = letterASCIICode - 65;\n\n      // get the color for the branch path number\n      color = this.stepBackgroundColors[branchPathNumber];\n    }\n    return color;\n}\n\n  /**\n   * Copy the project URL to the clipboard\n   */\n  copyProjectURL() {\n    let textArea = document.createElement('textarea');\n    textArea.value = this.projectURL;\n    document.body.appendChild(textArea);\n    textArea.select();\n    document.execCommand('copy');\n    document.body.removeChild(textArea);\n  }\n\n  /**\n   * Open the project.json file in a new tab\n   */\n  openProjectURLInNewTab() {\n    window.open(this.projectURL, '_blank');\n  }\n\n  /**\n   * Get the number of inactive groups.\n   * @return The number of inactive groups.\n   */\n  getNumberOfInactiveGroups() {\n    let count = 0;\n    for (let n = 0; n < this.inactiveNodes.length; n++) {\n      let inactiveNode = this.inactiveNodes[n];\n      if (inactiveNode != null) {\n        if (inactiveNode.type == 'group') {\n          count++;\n        }\n      }\n    }\n    return count;\n  }\n\n  /**\n   * Get the number of inactive steps. This only counts the inactive steps that\n   * are not in an inactive group.\n   * @return The number of inactive steps (not including the inactive steps that\n   * are in an inactive group).\n   */\n  getNumberOfInactiveSteps() {\n    let count = 0;\n    for (let n = 0; n < this.inactiveNodes.length; n++) {\n      let inactiveNode = this.inactiveNodes[n];\n      if (inactiveNode != null) {\n        if (inactiveNode.type == 'node' &&\n              this.ProjectService.getParentGroup(inactiveNode.id) == null) {\n          count++;\n        }\n      }\n    }\n    return count;\n  }\n\n  /**\n   * Get the parent of a node.\n   * @param nodeId Get the parent of this node.\n   * @return The parent group node or null if the node does not have a parent.\n   */\n  getParentGroup(nodeId) {\n    return this.ProjectService.getParentGroup(nodeId);\n  }\n\n  /**\n   * The checkbox for a node was clicked. We will determine whether there are\n   * any activity nodes that are selected or whether there are any step nodes\n   * that are selected. We do this because we do not allow selecting a mix of\n   * activities and steps. If there are any activity nodes that are selected,\n   * we will disable all the step node check boxes. Alternatively, if there are\n   * any step nodes selected, we will disable all the activity node check boxes.\n   * @param nodeId The node id of the node that was clicked.\n   */\n  projectItemClicked(nodeId) {\n    this.stepNodeSelected = false;\n    this.activityNodeSelected = false;\n\n    // this will check the items that are used in the project\n    for (let nodeId in this.items) {\n      let node = this.items[nodeId];\n      if (node.checked) {\n        if (this.isGroupNode(nodeId)) {\n          this.activityNodeSelected = true;\n        } else {\n          this.stepNodeSelected = true;\n        }\n      }\n    }\n\n    // this will check the items that are unused in the project\n    for (let key in this.idToNode) {\n      let node = this.idToNode[key];\n      if (node.checked) {\n        if (this.isGroupNode(key)) {\n          this.activityNodeSelected = true;\n        } else {\n          this.stepNodeSelected = true;\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if a node is a branch point.\n   * @param nodeId The node id of the node.\n   * @return Whether the node is a branch point.\n   */\n  isBranchPoint(nodeId) {\n    return this.ProjectService.isBranchPoint(nodeId);\n  }\n\n  /**\n   * Get the number of branch paths. This is assuming the node is a branch point.\n   * @param nodeId The node id of the branch point node.\n   * @return The number of branch paths for this branch point.\n   */\n  getNumberOfBranchPaths(nodeId) {\n    return this.ProjectService.getNumberOfBranchPaths(nodeId);\n  }\n\n  /**\n   * Get the description of the branch criteria.\n   * @param nodeId The node id of the branch point node.\n   * @returns A human readable string describing how we will decide which\n   * branch path a student goes down.\n   */\n  getBranchCriteriaDescription(nodeId) {\n    return this.ProjectService.getBranchCriteriaDescription(nodeId);\n  }\n\n  /**\n   * Check if a node has a constraint.\n   * @param nodeId The node id of the node.\n   * @return Whether the node has a constraint authored on it.\n   */\n  nodeHasConstraint(nodeId) {\n    return this.ProjectService.nodeHasConstraint(nodeId);\n  }\n\n  /**\n   * Get the number of constraints authored on a node.\n   * @param nodeId The node id of the node.\n   * @return The number of constraints authored on a node.\n   */\n  getNumberOfConstraintsOnNode(nodeId) {\n    let constraints = this.ProjectService.getConstraintsOnNode(nodeId);\n    return constraints.length;\n  }\n\n  /**\n   * Get the description of the constraints authored on the given step.\n   * @param nodeId The node id.\n   * @return A human readable string containing the description of the\n   * constraints authored on the given step.\n   */\n  getConstraintDescriptions(nodeId) {\n    let constraintDescriptions = '';\n    let constraints = this.ProjectService.getConstraintsOnNode(nodeId);\n    for (let c = 0; c < constraints.length; c++) {\n      let constraint = constraints[c];\n      let description = this.ProjectService.getConstraintDescription(constraint);\n      constraintDescriptions += (c + 1) + ' - ' + description + '\\n';\n    }\n    return constraintDescriptions;\n  }\n\n  /**\n   * Check if a node has a rubric.\n   * @param nodeId The node id of the node.\n   * @return Whether the node or one of the node's components has a rubric\n   * authored on it.\n   */\n  nodeHasRubric(nodeId) {\n    return this.ProjectService.nodeHasRubric(nodeId);\n  }\n}\n\nProjectController.$inject = [\n    '$anchorScroll',\n    '$filter',\n    '$interval',\n    '$mdDialog',\n    '$q',\n    '$rootScope',\n    '$scope',\n    '$state',\n    '$stateParams',\n    '$timeout',\n    'AuthorWebSocketService',\n    'ConfigService',\n    'ProjectAssetService',\n    'ProjectService',\n    'TeacherDataService',\n    'UtilService'\n];\n\nexport default ProjectController;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.es6 b/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.es6
index e1a34429e7..0dc3ee461e 100644
--- a/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.es6
+++ b/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.es6
@@ -10,6 +10,7 @@ class NavItemController {
                 ConfigService,
                 NodeService,
                 NotificationService,
+                PlanningService,
                 ProjectService,
                 StudentDataService,
                 StudentStatusService,
@@ -25,6 +26,7 @@ class NavItemController {
         this.ConfigService = ConfigService;
         this.NodeService = NodeService;
         this.NotificationService = NotificationService;
+        this.PlanningService = PlanningService;
         this.ProjectService = ProjectService;
         this.StudentDataService = StudentDataService;
         this.StudentStatusService = StudentStatusService;
@@ -61,7 +63,7 @@ class NavItemController {
         this.isWorkgroupOnlineOnNode = false;
 
         // whether this node is a planning group
-        this.isPlanning = this.ProjectService.isPlanning(this.nodeId);
+        this.isPlanning = this.PlanningService.isPlanning(this.nodeId);
 
         // get the node icon
         this.icon = this.ProjectService.getNodeIconByNodeId(this.nodeId);
@@ -79,7 +81,7 @@ class NavItemController {
              * planning is enabled for this group so we will get the available
              * planning nodes that can be used
              */
-            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.nodeId);
+            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.nodeId);
         } else if (this.isPlanningNode) {
             /* this is an available planning node for its parent group, so we
              * need to calculate the total number of times it has been added
@@ -419,6 +421,7 @@ NavItemController.$inject = [
     'ConfigService',
     'NodeService',
     'NotificationService',
+    'PlanningService',
     'ProjectService',
     'StudentDataService',
     'StudentStatusService',
diff --git a/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.js b/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.js
index 1e67e023b2..0fc50cb79c 100644
--- a/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.js
+++ b/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.js
@@ -9,7 +9,7 @@ var _createClass = function () { function defineProperties(target, props) { for
 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
 var NavItemController = function () {
-    function NavItemController($element, $filter, $rootScope, $scope, $state, AnnotationService, ConfigService, NodeService, NotificationService, ProjectService, StudentDataService, StudentStatusService, TeacherDataService, TeacherWebSocketService) {
+    function NavItemController($element, $filter, $rootScope, $scope, $state, AnnotationService, ConfigService, NodeService, NotificationService, PlanningService, ProjectService, StudentDataService, StudentStatusService, TeacherDataService, TeacherWebSocketService) {
         var _this = this;
 
         _classCallCheck(this, NavItemController);
@@ -23,6 +23,7 @@ var NavItemController = function () {
         this.ConfigService = ConfigService;
         this.NodeService = NodeService;
         this.NotificationService = NotificationService;
+        this.PlanningService = PlanningService;
         this.ProjectService = ProjectService;
         this.StudentDataService = StudentDataService;
         this.StudentStatusService = StudentStatusService;
@@ -59,7 +60,7 @@ var NavItemController = function () {
         this.isWorkgroupOnlineOnNode = false;
 
         // whether this node is a planning group
-        this.isPlanning = this.ProjectService.isPlanning(this.nodeId);
+        this.isPlanning = this.PlanningService.isPlanning(this.nodeId);
 
         // get the node icon
         this.icon = this.ProjectService.getNodeIconByNodeId(this.nodeId);
@@ -77,7 +78,7 @@ var NavItemController = function () {
              * planning is enabled for this group so we will get the available
              * planning nodes that can be used
              */
-            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.nodeId);
+            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.nodeId);
         } else if (this.isPlanningNode) {
             /* this is an available planning node for its parent group, so we
              * need to calculate the total number of times it has been added
@@ -176,13 +177,6 @@ var NavItemController = function () {
             _this.setWorkgroupsOnNodeData();
             _this.getAlertNotifications();
         });
-
-        // listen for the currentWorkgroupChanged event
-        /*this.$rootScope.$on('currentWorkgroupChanged', (event, args) => {
-            this.currentWorkgroup = args.currentWorkgroup;
-            this.setCurrentNodeStatus();
-            this.getAlertNotifications();
-        });*/
     }
 
     _createClass(NavItemController, [{
@@ -445,7 +439,7 @@ var NavItemController = function () {
     return NavItemController;
 }();
 
-NavItemController.$inject = ['$element', '$filter', '$rootScope', '$scope', '$state', 'AnnotationService', 'ConfigService', 'NodeService', 'NotificationService', 'ProjectService', 'StudentDataService', 'StudentStatusService', 'TeacherDataService', 'TeacherWebSocketService'];
+NavItemController.$inject = ['$element', '$filter', '$rootScope', '$scope', '$state', 'AnnotationService', 'ConfigService', 'NodeService', 'NotificationService', 'PlanningService', 'ProjectService', 'StudentDataService', 'StudentStatusService', 'TeacherDataService', 'TeacherWebSocketService'];
 
 var NavItem = {
     bindings: {
diff --git a/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.js.map b/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.js.map
index e8bb1714c7..050833f557 100644
--- a/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.js.map
+++ b/src/main/webapp/wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.js.map
@@ -1 +1 @@
-{"version":3,"sources":["navItem.es6"],"names":["NavItemController","$element","$filter","$rootScope","$scope","$state","AnnotationService","ConfigService","NodeService","NotificationService","ProjectService","StudentDataService","StudentStatusService","TeacherDataService","TeacherWebSocketService","$translate","expanded","item","idToNode","nodeId","isGroup","isGroupNode","nodeHasWork","nodeTitle","showPosition","nodeIdToNumber","title","currentNode","previousNode","isCurrentNode","id","currentPeriod","getCurrentPeriod","currentWorkgroup","getCurrentWorkgroup","setCurrentNodeStatus","maxScore","getMaxScoreForNode","workgroupsOnNodeData","isWorkgroupOnlineOnNode","isPlanning","icon","getNodeIconByNodeId","parentGroupId","parentGroup","getParentGroup","availablePlanningNodes","getAvailablePlanningNodes","isPlanningNode","setWorkgroupsOnNodeData","$onInit","hasAlert","newAlert","alertNotifications","getAlertNotifications","hasRubrics","getNumberOfRubricsByNodeId","alertIconLabel","alertIconClass","alertIconName","rubricIconLabel","rubricIconClass","rubricIconName","$watch","newNode","oldNode","isPrev","isApplicationNode","previousStep","$parent","isPrevStep","zoomToElement","prevNodeisGroup","prevNodeIsDescendant","isNodeDescendentOfGroup","value","itemExpanded","$on","event","args","setTimeout","top","offsetTop","location","delay","$","animate","scrollTop","getNodeById","endCurrentNodeAndSetCurrentNodeByNodeId","planningNodeId","maxAddAllowed","planningGroupNode","isParentGroupPlanning","a","length","availablePlanningNode","max","numPlanningNodesAdded","ids","c","childPlanningNodeId","childPlanningNode","planningNodeTemplateId","node","description","periodId","getNodeCompletion","completionPct","workgroupId","getScore","getNodeAverageScore","getWorkgroupIdsOnNode","workgroupIdsOnNode","workgroupOnlineOnNode","n","i","usernames","getDisplayUserNamesByWorkgroupId","avatarColor","getAvatarColorForWorkgroupId","online","isStudentOnline","push","studentStatus","getStudentStatusForWorkgroupId","currentNodeStatus","nodeStatuses","toWorkgroupId","hasNewAlert","result","nAlerts","alert","timeDismissed","$inject","NavItem","bindings","type","templateUrl","controller"],"mappings":"AAAA;;;;;;;;;;IAEMA,iB;AACF,+BAAYC,QAAZ,EACYC,OADZ,EAEYC,UAFZ,EAGYC,MAHZ,EAIYC,MAJZ,EAKYC,iBALZ,EAMYC,aANZ,EAOYC,WAPZ,EAQYC,mBARZ,EASYC,cATZ,EAUYC,kBAVZ,EAWYC,oBAXZ,EAYYC,kBAZZ,EAaYC,uBAbZ,EAaqC;AAAA;;AAAA;;AAEjC,aAAKb,QAAL,GAAgBA,QAAhB;AACA,aAAKC,OAAL,GAAeA,OAAf;AACA,aAAKC,UAAL,GAAkBA,UAAlB;AACA,aAAKC,MAAL,GAAcA,MAAd;AACA,aAAKC,MAAL,GAAcA,MAAd;AACA,aAAKC,iBAAL,GAAyBA,iBAAzB;AACA,aAAKC,aAAL,GAAqBA,aAArB;AACA,aAAKC,WAAL,GAAmBA,WAAnB;AACA,aAAKC,mBAAL,GAA2BA,mBAA3B;AACA,aAAKC,cAAL,GAAsBA,cAAtB;AACA,aAAKC,kBAAL,GAA0BA,kBAA1B;AACA,aAAKC,oBAAL,GAA4BA,oBAA5B;AACA,aAAKC,kBAAL,GAA0BA,kBAA1B;AACA,aAAKC,uBAAL,GAA+BA,uBAA/B;;AAEA,aAAKC,UAAL,GAAkB,KAAKb,OAAL,CAAa,WAAb,CAAlB;;AAEA,aAAKc,QAAL,GAAgB,KAAhB;;AAEA,aAAKC,IAAL,GAAY,KAAKP,cAAL,CAAoBQ,QAApB,CAA6B,KAAKC,MAAlC,CAAZ;AACA,aAAKC,OAAL,GAAe,KAAKV,cAAL,CAAoBW,WAApB,CAAgC,KAAKF,MAArC,CAAf;AACA,aAAKG,WAAL,GAAmB,KAAKZ,cAAL,CAAoBY,WAApB,CAAgC,KAAKH,MAArC,CAAnB;;AAEA,aAAKI,SAAL,GAAiB,KAAKC,YAAL,GAAqB,KAAKd,cAAL,CAAoBe,cAApB,CAAmC,KAAKN,MAAxC,IAAkD,IAAlD,GAAyD,KAAKF,IAAL,CAAUS,KAAxF,GAAiG,KAAKT,IAAL,CAAUS,KAA5H;AACA,aAAKC,WAAL,GAAmB,KAAKd,kBAAL,CAAwBc,WAA3C;AACA,aAAKC,YAAL,GAAoB,IAApB;AACA,aAAKC,aAAL,GAAsB,KAAKF,WAAL,CAAiBG,EAAjB,KAAwB,KAAKX,MAAnD;;AAEA;AACA,aAAKY,aAAL,GAAqB,KAAKlB,kBAAL,CAAwBmB,gBAAxB,EAArB;;AAEA;AACA,aAAKC,gBAAL,GAAwB,KAAKpB,kBAAL,CAAwBqB,mBAAxB,EAAxB;AACA,aAAKC,oBAAL;;AAEA;AACA,aAAKC,QAAL,GAAgB,KAAK1B,cAAL,CAAoB2B,kBAApB,CAAuC,KAAKlB,MAA5C,CAAhB;;AAEA;AACA,aAAKmB,oBAAL,GAA4B,EAA5B;;AAEA;AACA,aAAKC,uBAAL,GAA+B,KAA/B;;AAEA;AACA,aAAKC,UAAL,GAAkB,KAAK9B,cAAL,CAAoB8B,UAApB,CAA+B,KAAKrB,MAApC,CAAlB;;AAEA;AACA,aAAKsB,IAAL,GAAY,KAAK/B,cAAL,CAAoBgC,mBAApB,CAAwC,KAAKvB,MAA7C,CAAZ;;AAEA,aAAKwB,aAAL,GAAqB,IAArB;;AAEA,YAAIC,cAAc,KAAKlC,cAAL,CAAoBmC,cAApB,CAAmC,KAAK1B,MAAxC,CAAlB;;AAEA,YAAIyB,eAAe,IAAnB,EAAyB;AACrB,iBAAKD,aAAL,GAAqBC,YAAYd,EAAjC;AACH;;AAED,YAAI,KAAKU,UAAT,EAAqB;AACjB;;;;AAIA,iBAAKM,sBAAL,GAA8B,KAAKpC,cAAL,CAAoBqC,yBAApB,CAA8C,KAAK5B,MAAnD,CAA9B;AACH,SAND,MAMO,IAAI,KAAK6B,cAAT,EAAyB;AAC5B;;;;;AAKH;;AAED,aAAKC,uBAAL;;AAEA,aAAKC,OAAL,GAAe,YAAM;AACjB,kBAAKC,QAAL,GAAgB,KAAhB;AACA,kBAAKC,QAAL,GAAgB,KAAhB;AACA,kBAAKC,kBAAL,GAA0B,EAA1B;;AAEA,kBAAKC,qBAAL;;AAEA,kBAAKC,UAAL,GAAkB,MAAK7C,cAAL,CAAoB8C,0BAApB,CAA+C,MAAKrC,MAApD,IAA8D,CAAhF;AACA,kBAAKsC,cAAL,GAAsB,MAAK1C,UAAL,CAAgB,gBAAhB,CAAtB;AACA,kBAAK2C,cAAL,GAAsB,MAAtB;AACA,kBAAKC,aAAL,GAAqB,eAArB;AACA,kBAAKC,eAAL,GAAuB,MAAK7C,UAAL,CAAgB,uBAAhB,CAAvB;AACA,kBAAK8C,eAAL,GAAuB,MAAvB;AACA,kBAAKC,cAAL,GAAsB,MAAtB;AACH,SAdD;;AAgBA,aAAK1D,MAAL,CAAY2D,MAAZ,CACI,YAAM;AAAE,mBAAO,MAAKlD,kBAAL,CAAwBc,WAA/B;AAA6C,SADzD,EAEI,UAACqC,OAAD,EAAUC,OAAV,EAAsB;AAClB,kBAAKtC,WAAL,GAAmBqC,OAAnB;AACA,kBAAKpC,YAAL,GAAoBqC,OAApB;AACA,kBAAKpC,aAAL,GAAsB,MAAKV,MAAL,KAAgB6C,QAAQlC,EAA9C;AACA,gBAAIoC,SAAS,KAAb;;AAEA,gBAAI,MAAKxD,cAAL,CAAoByD,iBAApB,CAAsCH,QAAQlC,EAA9C,CAAJ,EAAu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strict\";\r\n\r\nclass NavItemController {\r\n    constructor($element,\r\n                $filter,\r\n                $rootScope,\r\n                $scope,\r\n                $state,\r\n                AnnotationService,\r\n                ConfigService,\r\n                NodeService,\r\n                NotificationService,\r\n                ProjectService,\r\n                StudentDataService,\r\n                StudentStatusService,\r\n                TeacherDataService,\r\n                TeacherWebSocketService) {\r\n\r\n        this.$element = $element;\r\n        this.$filter = $filter;\r\n        this.$rootScope = $rootScope;\r\n        this.$scope = $scope;\r\n        this.$state = $state;\r\n        this.AnnotationService = AnnotationService;\r\n        this.ConfigService = ConfigService;\r\n        this.NodeService = NodeService;\r\n        this.NotificationService = NotificationService;\r\n        this.ProjectService = ProjectService;\r\n        this.StudentDataService = StudentDataService;\r\n        this.StudentStatusService = StudentStatusService;\r\n        this.TeacherDataService = TeacherDataService;\r\n        this.TeacherWebSocketService = TeacherWebSocketService;\r\n\r\n        this.$translate = this.$filter('translate');\r\n\r\n        this.expanded = false;\r\n\r\n        this.item = this.ProjectService.idToNode[this.nodeId];\r\n        this.isGroup = this.ProjectService.isGroupNode(this.nodeId);\r\n        this.nodeHasWork = this.ProjectService.nodeHasWork(this.nodeId);\r\n\r\n        this.nodeTitle = this.showPosition ? (this.ProjectService.nodeIdToNumber[this.nodeId] + ': ' + this.item.title) : this.item.title;\r\n        this.currentNode = this.TeacherDataService.currentNode;\r\n        this.previousNode = null;\r\n        this.isCurrentNode = (this.currentNode.id === this.nodeId);\r\n\r\n        // the current period\r\n        this.currentPeriod = this.TeacherDataService.getCurrentPeriod();\r\n\r\n        // the current workgroup\r\n        this.currentWorkgroup = this.TeacherDataService.getCurrentWorkgroup();\r\n        this.setCurrentNodeStatus();\r\n\r\n        // the max score for the node\r\n        this.maxScore = this.ProjectService.getMaxScoreForNode(this.nodeId);\r\n\r\n        // an object to hold workgroups currently visiting this node\r\n        this.workgroupsOnNodeData = [];\r\n\r\n        // whether there is at least one workgroup both online and on this node\r\n        this.isWorkgroupOnlineOnNode = false;\r\n\r\n        // whether this node is a planning group\r\n        this.isPlanning = this.ProjectService.isPlanning(this.nodeId);\r\n\r\n        // get the node icon\r\n        this.icon = this.ProjectService.getNodeIconByNodeId(this.nodeId);\r\n\r\n        this.parentGroupId = null;\r\n\r\n        var parentGroup = this.ProjectService.getParentGroup(this.nodeId);\r\n\r\n        if (parentGroup != null) {\r\n            this.parentGroupId = parentGroup.id;\r\n        }\r\n\r\n        if (this.isPlanning) {\r\n            /*\r\n             * planning is enabled for this group so we will get the available\r\n             * planning nodes that can be used\r\n             */\r\n            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.nodeId);\r\n        } else if (this.isPlanningNode) {\r\n            /* this is an available planning node for its parent group, so we\r\n             * need to calculate the total number of times it has been added\r\n             * to the project by all the workgroups in the current period\r\n             */\r\n\r\n        }\r\n\r\n        this.setWorkgroupsOnNodeData();\r\n\r\n        this.$onInit = () => {\r\n            this.hasAlert = false;\r\n            this.newAlert = false;\r\n            this.alertNotifications = [];\r\n\r\n            this.getAlertNotifications();\r\n\r\n            this.hasRubrics = this.ProjectService.getNumberOfRubricsByNodeId(this.nodeId) > 0;\r\n            this.alertIconLabel = this.$translate('HAS_ALERTS_NEW');\r\n            this.alertIconClass = 'warn';\r\n            this.alertIconName = 'notifications';\r\n            this.rubricIconLabel = this.$translate('STEP_HAS_RUBRICS_TIPS');\r\n            this.rubricIconClass = 'info';\r\n            this.rubricIconName = 'info';\r\n        };\r\n\r\n        this.$scope.$watch(\r\n            () => { return this.TeacherDataService.currentNode; },\r\n            (newNode, oldNode) => {\r\n                this.currentNode = newNode;\r\n                this.previousNode = oldNode;\r\n                this.isCurrentNode = (this.nodeId === newNode.id);\r\n                let isPrev = false;\r\n\r\n                if (this.ProjectService.isApplicationNode(newNode.id)) {\r\n                    return;\r\n                }\r\n\r\n                if (oldNode) {\r\n                    isPrev = (this.nodeId === oldNode.id);\r\n\r\n                    if (this.TeacherDataService.previousStep) {\r\n                        this.$scope.$parent.isPrevStep = (this.nodeId === this.TeacherDataService.previousStep.id);\r\n                    }\r\n\r\n                    if (isPrev && !this.isGroup) {\r\n                        this.zoomToElement();\r\n                    }\r\n                }\r\n\r\n                if (this.isGroup) {\r\n                    let prevNodeisGroup = (!oldNode || this.ProjectService.isGroupNode(oldNode.id));\r\n                    let prevNodeIsDescendant = this.ProjectService.isNodeDescendentOfGroup(oldNode, this.item);\r\n                    if (this.isCurrentNode) {\r\n                        this.expanded = true;\r\n                        if (prevNodeisGroup || !prevNodeIsDescendant) {\r\n                            this.zoomToElement();\r\n                        }\r\n                    } else {\r\n                        if (!prevNodeisGroup) {\r\n                            if (prevNodeIsDescendant) {\r\n                                this.expanded = true;\r\n                            } else {\r\n                                this.expanded = false;\r\n                            }\r\n                        }\r\n                    }\r\n                } else {\r\n                    if (isPrev && this.ProjectService.isNodeDescendentOfGroup(this.item, newNode)) {\r\n                        this.zoomToElement();\r\n                    }\r\n                }\r\n            }\r\n        );\r\n\r\n        this.$scope.$watch(\r\n            () => { return this.expanded; },\r\n            (value) => {\r\n                this.$scope.$parent.itemExpanded = value;\r\n            }\r\n        );\r\n\r\n        // listen for the studentsOnlineReceived event\r\n        this.$rootScope.$on('studentsOnlineReceived', (event, args) => {\r\n            this.setWorkgroupsOnNodeData();\r\n        });\r\n\r\n        // listen for the studentStatusReceived event\r\n        this.$rootScope.$on('studentStatusReceived', (event, args) => {\r\n            this.setWorkgroupsOnNodeData();\r\n            this.setCurrentNodeStatus();\r\n            this.getAlertNotifications();\r\n        });\r\n\r\n        // listen for the currentPeriodChanged event\r\n        this.$rootScope.$on('currentPeriodChanged', (event, args) => {\r\n            this.currentPeriod = args.currentPeriod;\r\n            this.setWorkgroupsOnNodeData();\r\n            this.getAlertNotifications();\r\n        });\r\n\r\n        // listen for the currentWorkgroupChanged event\r\n        /*this.$rootScope.$on('currentWorkgroupChanged', (event, args) => {\r\n            this.currentWorkgroup = args.currentWorkgroup;\r\n            this.setCurrentNodeStatus();\r\n            this.getAlertNotifications();\r\n        });*/\r\n    }\r\n\r\n    zoomToElement() {\r\n        setTimeout(()=> {\r\n            // smooth scroll to expanded group's page location\r\n            let top = this.$element[0].offsetTop;\r\n            let location = this.isGroup ? top - 32 : top - 80;\r\n            let delay = 350;\r\n            $('#content').animate({\r\n                scrollTop: location\r\n            }, delay, 'linear');\r\n        }, 500);\r\n    }\r\n\r\n    itemClicked(event) {\r\n        let previousNode = this.TeacherDataService.currentNode;\r\n        let currentNode = this.ProjectService.getNodeById(this.nodeId);\r\n        if (this.isGroup) {\r\n            this.expanded = !this.expanded;\r\n            if (this.expanded) {\r\n                if (this.isCurrentNode) {\r\n                    this.zoomToElement();\r\n                } else {\r\n                    this.TeacherDataService.endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\r\n                }\r\n            }\r\n        } else {\r\n            this.TeacherDataService.endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Returns the max times a planning node can be added to the project (-1 is\r\n     * is returned if there is no limit)\r\n     * @param planningNodeId\r\n     */\r\n    getPlannindNodeMaxAllowed(planningNodeId) {\r\n        let maxAddAllowed = -1;  // by default, students can add as many instances as they want\r\n        let planningGroupNode = null;\r\n        if (this.isParentGroupPlanning) {\r\n            planningGroupNode = this.ProjectService.getNodeById(this.parentGroupId);\r\n        } else {\r\n            planningGroupNode = this.ProjectService.getNodeById(this.nodeId);\r\n        }\r\n        // get the maxAddAllowed value by looking up the planningNode in the project.\r\n        if (planningGroupNode && planningGroupNode.availablePlanningNodes) {\r\n            for (let a = 0; a < planningGroupNode.availablePlanningNodes.length; a++) {\r\n                let availablePlanningNode = planningGroupNode.availablePlanningNodes[a];\r\n                if (availablePlanningNode.nodeId === planningNodeId && availablePlanningNode.max != null) {\r\n                    maxAddAllowed = availablePlanningNode.max;\r\n                }\r\n            }\r\n        }\r\n\r\n        return maxAddAllowed;\r\n    }\r\n\r\n    /**\r\n     * Returns the number of times a planning node has been added to the project\r\n     * @param planningNodeId\r\n     */\r\n    getNumPlannindNodeInstances(planningNodeId) {\r\n        let numPlanningNodesAdded = 0;  // keep track of number of instances\r\n        // otherwise, see how many times the planning node template has been used.\r\n\r\n        let planningGroupNode = null;\r\n        if (this.isParentGroupPlanning) {\r\n            planningGroupNode = this.ProjectService.getNodeById(this.parentGroupId);\r\n        } else {\r\n            planningGroupNode = this.ProjectService.getNodeById(this.nodeId);\r\n        }\r\n\r\n        // loop through the child ids in the planning group and see how many times they've been used\r\n        if (planningGroupNode && planningGroupNode.ids) {\r\n            for (let c = 0; c < planningGroupNode.ids.length; c++) {\r\n                let childPlanningNodeId = planningGroupNode.ids[c];\r\n                let childPlanningNode = this.ProjectService.getNodeById(childPlanningNodeId);\r\n                if (childPlanningNode != null && childPlanningNode.planningNodeTemplateId === planningNodeId) {\r\n                    numPlanningNodesAdded++;\r\n                }\r\n            }\r\n        }\r\n\r\n        return numPlanningNodesAdded;\r\n    }\r\n\r\n    /**\r\n     * Get the node title\r\n     * @param nodeId get the title for this node\r\n     * @returns the title for the node\r\n     */\r\n    getNodeTitle(nodeId) {\r\n        var node = this.ProjectService.idToNode[nodeId];\r\n        var title = null;\r\n\r\n        if (node != null) {\r\n            title = node.title;\r\n        }\r\n\r\n        return title;\r\n    }\r\n\r\n    /**\r\n     * Get the node description\r\n     * @param nodeId get the description for this node\r\n     * @returns the description for the node\r\n     */\r\n    getNodeDescription(nodeId) {\r\n        var node = this.ProjectService.idToNode[nodeId];\r\n        var description = null;\r\n\r\n        if (node != null) {\r\n            description = node.description;\r\n        }\r\n\r\n        return description;\r\n    }\r\n\r\n    /**\r\n     * Get the percentage of the node that the class or period has completed\r\n     * @returns the percentage of the node that the class or period has completed\r\n     */\r\n    getNodeCompletion() {\r\n        // get completion for all students in the current period\r\n        let periodId = this.currentPeriod.periodId;\r\n        return this.StudentStatusService.getNodeCompletion(this.nodeId, periodId, null, true).completionPct;\r\n    }\r\n\r\n    /**\r\n     * Get the average score for the node\r\n     * @returns the average score for the node\r\n     */\r\n    getNodeAverageScore() {\r\n        // get the currently seleceted workgroupId\r\n        let workgroupId = this.currentWorkgroup ? this.currentWorkgroup.workgroupId : null;\r\n\r\n        if (workgroupId) {\r\n            // get and return score for currently selected workgroup\r\n            return this.AnnotationService.getScore(workgroupId, this.nodeId);\r\n        } else {\r\n            // there is no currently selected workgroup, so get the currently selected period\r\n            let periodId = this.currentPeriod.periodId;\r\n\r\n            // get and return the average score for the node\r\n            return this.StudentStatusService.getNodeAverageScore(this.nodeId, periodId);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Get the workgroup ids on this node in the current period\r\n     * @returns an array of workgroup ids on a node in a period\r\n     */\r\n    getWorkgroupIdsOnNode() {\r\n        // get the currently selected period\r\n        let periodId = this.currentPeriod.periodId;\r\n\r\n        // get the workgroups that are on the node in the period\r\n        return this.StudentStatusService.getWorkgroupIdsOnNode(this.nodeId, periodId);\r\n    }\r\n\r\n    setWorkgroupsOnNodeData() {\r\n        let workgroupIdsOnNode = this.getWorkgroupIdsOnNode();\r\n        let workgroupOnlineOnNode = false;\r\n        this.workgroupsOnNodeData = [];\r\n\r\n        let n = workgroupIdsOnNode.length;\r\n        for (let i = 0; i < n; i++) {\r\n            let id = workgroupIdsOnNode[i];\r\n\r\n            let usernames = this.ConfigService.getDisplayUserNamesByWorkgroupId(id);\r\n            let avatarColor = this.ConfigService.getAvatarColorForWorkgroupId(id);\r\n            let online = this.TeacherWebSocketService.isStudentOnline(id);\r\n            if (online) {\r\n                workgroupOnlineOnNode = true;\r\n            }\r\n\r\n            this.workgroupsOnNodeData.push({\r\n                'workgroupId': id,\r\n                'usernames': usernames,\r\n                'avatarColor': avatarColor,\r\n                'online': online\r\n            });\r\n        }\r\n\r\n        this.isWorkgroupOnlineOnNode = workgroupOnlineOnNode;\r\n    }\r\n\r\n    setCurrentNodeStatus() {\r\n        if (this.currentWorkgroup) {\r\n            // get the workgroup's studentStatus\r\n            let studentStatus = this.StudentStatusService.getStudentStatusForWorkgroupId(this.currentWorkgroup.workgroupId);\r\n\r\n            // get the current node status\r\n            this.currentNodeStatus = studentStatus.nodeStatuses[this.nodeId];\r\n        }\r\n    }\r\n\r\n    getAlertNotifications() {\r\n        // get the currently selected period\r\n        let periodId = this.currentPeriod.periodId;\r\n        let workgroupId = this.currentWorkgroup ? this.currentWorkgroup.workgroupId : null;\r\n\r\n        let args = {};\r\n        args.nodeId = this.nodeId;\r\n        args.periodId = periodId;\r\n        args.toWorkgroupId = workgroupId;\r\n        this.alertNotifications = this.NotificationService.getAlertNotifications(args);\r\n\r\n        this.hasAlert = (this.alertNotifications.length > 0);\r\n        this.newAlert = this.hasNewAlert();\r\n    }\r\n\r\n    hasNewAlert() {\r\n        let result = false;\r\n\r\n        let nAlerts = this.alertNotifications.length;\r\n        for (let i = 0; i < nAlerts; i++) {\r\n            let alert = this.alertNotifications[i];\r\n\r\n            if (!alert.timeDismissed) {\r\n                result = true;\r\n                break;\r\n            }\r\n        }\r\n\r\n        return result;\r\n    }\r\n}\r\n\r\nNavItemController.$inject = [\r\n    '$element',\r\n    '$filter',\r\n    '$rootScope',\r\n    '$scope',\r\n    '$state',\r\n    'AnnotationService',\r\n    'ConfigService',\r\n    'NodeService',\r\n    'NotificationService',\r\n    'ProjectService',\r\n    'StudentDataService',\r\n    'StudentStatusService',\r\n    'TeacherDataService',\r\n    'TeacherWebSocketService'\r\n];\r\n\r\nconst NavItem = {\r\n    bindings: {\r\n        nodeId: '<',\r\n        showPosition: '<',\r\n        type: '<',\r\n        isPlanningNode: '<'\r\n    },\r\n    templateUrl: 'wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.html',\r\n    controller: NavItemController\r\n};\r\n\r\nexport default NavItem;\r\n"]}
\ No newline at end of file
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strict\";\n\nclass NavItemController {\n    constructor($element,\n                $filter,\n                $rootScope,\n                $scope,\n                $state,\n                AnnotationService,\n                ConfigService,\n                NodeService,\n                NotificationService,\n                PlanningService,\n                ProjectService,\n                StudentDataService,\n                StudentStatusService,\n                TeacherDataService,\n                TeacherWebSocketService) {\n\n        this.$element = $element;\n        this.$filter = $filter;\n        this.$rootScope = $rootScope;\n        this.$scope = $scope;\n        this.$state = $state;\n        this.AnnotationService = AnnotationService;\n        this.ConfigService = ConfigService;\n        this.NodeService = NodeService;\n        this.NotificationService = NotificationService;\n        this.PlanningService = PlanningService;\n        this.ProjectService = ProjectService;\n        this.StudentDataService = StudentDataService;\n        this.StudentStatusService = StudentStatusService;\n        this.TeacherDataService = TeacherDataService;\n        this.TeacherWebSocketService = TeacherWebSocketService;\n\n        this.$translate = this.$filter('translate');\n\n        this.expanded = false;\n\n        this.item = this.ProjectService.idToNode[this.nodeId];\n        this.isGroup = this.ProjectService.isGroupNode(this.nodeId);\n        this.nodeHasWork = this.ProjectService.nodeHasWork(this.nodeId);\n\n        this.nodeTitle = this.showPosition ? (this.ProjectService.nodeIdToNumber[this.nodeId] + ': ' + this.item.title) : this.item.title;\n        this.currentNode = this.TeacherDataService.currentNode;\n        this.previousNode = null;\n        this.isCurrentNode = (this.currentNode.id === this.nodeId);\n\n        // the current period\n        this.currentPeriod = this.TeacherDataService.getCurrentPeriod();\n\n        // the current workgroup\n        this.currentWorkgroup = this.TeacherDataService.getCurrentWorkgroup();\n        this.setCurrentNodeStatus();\n\n        // the max score for the node\n        this.maxScore = this.ProjectService.getMaxScoreForNode(this.nodeId);\n\n        // an object to hold workgroups currently visiting this node\n        this.workgroupsOnNodeData = [];\n\n        // whether there is at least one workgroup both online and on this node\n        this.isWorkgroupOnlineOnNode = false;\n\n        // whether this node is a planning group\n        this.isPlanning = this.PlanningService.isPlanning(this.nodeId);\n\n        // get the node icon\n        this.icon = this.ProjectService.getNodeIconByNodeId(this.nodeId);\n\n        this.parentGroupId = null;\n\n        var parentGroup = this.ProjectService.getParentGroup(this.nodeId);\n\n        if (parentGroup != null) {\n            this.parentGroupId = parentGroup.id;\n        }\n\n        if (this.isPlanning) {\n            /*\n             * planning is enabled for this group so we will get the available\n             * planning nodes that can be used\n             */\n            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.nodeId);\n        } else if (this.isPlanningNode) {\n            /* this is an available planning node for its parent group, so we\n             * need to calculate the total number of times it has been added\n             * to the project by all the workgroups in the current period\n             */\n\n        }\n\n        this.setWorkgroupsOnNodeData();\n\n        this.$onInit = () => {\n            this.hasAlert = false;\n            this.newAlert = false;\n            this.alertNotifications = [];\n\n            this.getAlertNotifications();\n\n            this.hasRubrics = this.ProjectService.getNumberOfRubricsByNodeId(this.nodeId) > 0;\n            this.alertIconLabel = this.$translate('HAS_ALERTS_NEW');\n            this.alertIconClass = 'warn';\n            this.alertIconName = 'notifications';\n            this.rubricIconLabel = this.$translate('STEP_HAS_RUBRICS_TIPS');\n            this.rubricIconClass = 'info';\n            this.rubricIconName = 'info';\n        };\n\n        this.$scope.$watch(\n            () => { return this.TeacherDataService.currentNode; },\n            (newNode, oldNode) => {\n                this.currentNode = newNode;\n                this.previousNode = oldNode;\n                this.isCurrentNode = (this.nodeId === newNode.id);\n                let isPrev = false;\n\n                if (this.ProjectService.isApplicationNode(newNode.id)) {\n                    return;\n                }\n\n                if (oldNode) {\n                    isPrev = (this.nodeId === oldNode.id);\n\n                    if (this.TeacherDataService.previousStep) {\n                        this.$scope.$parent.isPrevStep = (this.nodeId === this.TeacherDataService.previousStep.id);\n                    }\n\n                    if (isPrev && !this.isGroup) {\n                        this.zoomToElement();\n                    }\n                }\n\n                if (this.isGroup) {\n                    let prevNodeisGroup = (!oldNode || this.ProjectService.isGroupNode(oldNode.id));\n                    let prevNodeIsDescendant = this.ProjectService.isNodeDescendentOfGroup(oldNode, this.item);\n                    if (this.isCurrentNode) {\n                        this.expanded = true;\n                        if (prevNodeisGroup || !prevNodeIsDescendant) {\n                            this.zoomToElement();\n                        }\n                    } else {\n                        if (!prevNodeisGroup) {\n                            if (prevNodeIsDescendant) {\n                                this.expanded = true;\n                            } else {\n                                this.expanded = false;\n                            }\n                        }\n                    }\n                } else {\n                    if (isPrev && this.ProjectService.isNodeDescendentOfGroup(this.item, newNode)) {\n                        this.zoomToElement();\n                    }\n                }\n            }\n        );\n\n        this.$scope.$watch(\n            () => { return this.expanded; },\n            (value) => {\n                this.$scope.$parent.itemExpanded = value;\n            }\n        );\n\n        // listen for the studentsOnlineReceived event\n        this.$rootScope.$on('studentsOnlineReceived', (event, args) => {\n            this.setWorkgroupsOnNodeData();\n        });\n\n        // listen for the studentStatusReceived event\n        this.$rootScope.$on('studentStatusReceived', (event, args) => {\n            this.setWorkgroupsOnNodeData();\n            this.setCurrentNodeStatus();\n            this.getAlertNotifications();\n        });\n\n        // listen for the currentPeriodChanged event\n        this.$rootScope.$on('currentPeriodChanged', (event, args) => {\n            this.currentPeriod = args.currentPeriod;\n            this.setWorkgroupsOnNodeData();\n            this.getAlertNotifications();\n        });\n    }\n\n    zoomToElement() {\n        setTimeout(()=> {\n            // smooth scroll to expanded group's page location\n            let top = this.$element[0].offsetTop;\n            let location = this.isGroup ? top - 32 : top - 80;\n            let delay = 350;\n            $('#content').animate({\n                scrollTop: location\n            }, delay, 'linear');\n        }, 500);\n    }\n\n    itemClicked(event) {\n        let previousNode = this.TeacherDataService.currentNode;\n        let currentNode = this.ProjectService.getNodeById(this.nodeId);\n        if (this.isGroup) {\n            this.expanded = !this.expanded;\n            if (this.expanded) {\n                if (this.isCurrentNode) {\n                    this.zoomToElement();\n                } else {\n                    this.TeacherDataService.endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\n                }\n            }\n        } else {\n            this.TeacherDataService.endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\n        }\n    }\n\n    /**\n     * Returns the max times a planning node can be added to the project (-1 is\n     * is returned if there is no limit)\n     * @param planningNodeId\n     */\n    getPlannindNodeMaxAllowed(planningNodeId) {\n        let maxAddAllowed = -1;  // by default, students can add as many instances as they want\n        let planningGroupNode = null;\n        if (this.isParentGroupPlanning) {\n            planningGroupNode = this.ProjectService.getNodeById(this.parentGroupId);\n        } else {\n            planningGroupNode = this.ProjectService.getNodeById(this.nodeId);\n        }\n        // get the maxAddAllowed value by looking up the planningNode in the project.\n        if (planningGroupNode && planningGroupNode.availablePlanningNodes) {\n            for (let a = 0; a < planningGroupNode.availablePlanningNodes.length; a++) {\n                let availablePlanningNode = planningGroupNode.availablePlanningNodes[a];\n                if (availablePlanningNode.nodeId === planningNodeId && availablePlanningNode.max != null) {\n                    maxAddAllowed = availablePlanningNode.max;\n                }\n            }\n        }\n\n        return maxAddAllowed;\n    }\n\n    /**\n     * Returns the number of times a planning node has been added to the project\n     * @param planningNodeId\n     */\n    getNumPlannindNodeInstances(planningNodeId) {\n        let numPlanningNodesAdded = 0;  // keep track of number of instances\n        // otherwise, see how many times the planning node template has been used.\n\n        let planningGroupNode = null;\n        if (this.isParentGroupPlanning) {\n            planningGroupNode = this.ProjectService.getNodeById(this.parentGroupId);\n        } else {\n            planningGroupNode = this.ProjectService.getNodeById(this.nodeId);\n        }\n\n        // loop through the child ids in the planning group and see how many times they've been used\n        if (planningGroupNode && planningGroupNode.ids) {\n            for (let c = 0; c < planningGroupNode.ids.length; c++) {\n                let childPlanningNodeId = planningGroupNode.ids[c];\n                let childPlanningNode = this.ProjectService.getNodeById(childPlanningNodeId);\n                if (childPlanningNode != null && childPlanningNode.planningNodeTemplateId === planningNodeId) {\n                    numPlanningNodesAdded++;\n                }\n            }\n        }\n\n        return numPlanningNodesAdded;\n    }\n\n    /**\n     * Get the node title\n     * @param nodeId get the title for this node\n     * @returns the title for the node\n     */\n    getNodeTitle(nodeId) {\n        var node = this.ProjectService.idToNode[nodeId];\n        var title = null;\n\n        if (node != null) {\n            title = node.title;\n        }\n\n        return title;\n    }\n\n    /**\n     * Get the node description\n     * @param nodeId get the description for this node\n     * @returns the description for the node\n     */\n    getNodeDescription(nodeId) {\n        var node = this.ProjectService.idToNode[nodeId];\n        var description = null;\n\n        if (node != null) {\n            description = node.description;\n        }\n\n        return description;\n    }\n\n    /**\n     * Get the percentage of the node that the class or period has completed\n     * @returns the percentage of the node that the class or period has completed\n     */\n    getNodeCompletion() {\n        // get completion for all students in the current period\n        let periodId = this.currentPeriod.periodId;\n        return this.StudentStatusService.getNodeCompletion(this.nodeId, periodId, null, true).completionPct;\n    }\n\n    /**\n     * Get the average score for the node\n     * @returns the average score for the node\n     */\n    getNodeAverageScore() {\n        // get the currently seleceted workgroupId\n        let workgroupId = this.currentWorkgroup ? this.currentWorkgroup.workgroupId : null;\n\n        if (workgroupId) {\n            // get and return score for currently selected workgroup\n            return this.AnnotationService.getScore(workgroupId, this.nodeId);\n        } else {\n            // there is no currently selected workgroup, so get the currently selected period\n            let periodId = this.currentPeriod.periodId;\n\n            // get and return the average score for the node\n            return this.StudentStatusService.getNodeAverageScore(this.nodeId, periodId);\n        }\n    }\n\n    /**\n     * Get the workgroup ids on this node in the current period\n     * @returns an array of workgroup ids on a node in a period\n     */\n    getWorkgroupIdsOnNode() {\n        // get the currently selected period\n        let periodId = this.currentPeriod.periodId;\n\n        // get the workgroups that are on the node in the period\n        return this.StudentStatusService.getWorkgroupIdsOnNode(this.nodeId, periodId);\n    }\n\n    setWorkgroupsOnNodeData() {\n        let workgroupIdsOnNode = this.getWorkgroupIdsOnNode();\n        let workgroupOnlineOnNode = false;\n        this.workgroupsOnNodeData = [];\n\n        let n = workgroupIdsOnNode.length;\n        for (let i = 0; i < n; i++) {\n            let id = workgroupIdsOnNode[i];\n\n            let usernames = this.ConfigService.getDisplayUserNamesByWorkgroupId(id);\n            let avatarColor = this.ConfigService.getAvatarColorForWorkgroupId(id);\n            let online = this.TeacherWebSocketService.isStudentOnline(id);\n            if (online) {\n                workgroupOnlineOnNode = true;\n            }\n\n            this.workgroupsOnNodeData.push({\n                'workgroupId': id,\n                'usernames': usernames,\n                'avatarColor': avatarColor,\n                'online': online\n            });\n        }\n\n        this.isWorkgroupOnlineOnNode = workgroupOnlineOnNode;\n    }\n\n    setCurrentNodeStatus() {\n        if (this.currentWorkgroup) {\n            // get the workgroup's studentStatus\n            let studentStatus = this.StudentStatusService.getStudentStatusForWorkgroupId(this.currentWorkgroup.workgroupId);\n\n            // get the current node status\n            this.currentNodeStatus = studentStatus.nodeStatuses[this.nodeId];\n        }\n    }\n\n    getAlertNotifications() {\n        // get the currently selected period\n        let periodId = this.currentPeriod.periodId;\n        let workgroupId = this.currentWorkgroup ? this.currentWorkgroup.workgroupId : null;\n\n        let args = {};\n        args.nodeId = this.nodeId;\n        args.periodId = periodId;\n        args.toWorkgroupId = workgroupId;\n        this.alertNotifications = this.NotificationService.getAlertNotifications(args);\n\n        this.hasAlert = (this.alertNotifications.length > 0);\n        this.newAlert = this.hasNewAlert();\n    }\n\n    hasNewAlert() {\n        let result = false;\n\n        let nAlerts = this.alertNotifications.length;\n        for (let i = 0; i < nAlerts; i++) {\n            let alert = this.alertNotifications[i];\n\n            if (!alert.timeDismissed) {\n                result = true;\n                break;\n            }\n        }\n\n        return result;\n    }\n}\n\nNavItemController.$inject = [\n    '$element',\n    '$filter',\n    '$rootScope',\n    '$scope',\n    '$state',\n    'AnnotationService',\n    'ConfigService',\n    'NodeService',\n    'NotificationService',\n    'PlanningService',\n    'ProjectService',\n    'StudentDataService',\n    'StudentStatusService',\n    'TeacherDataService',\n    'TeacherWebSocketService'\n];\n\nconst NavItem = {\n    bindings: {\n        nodeId: '<',\n        showPosition: '<',\n        type: '<',\n        isPlanningNode: '<'\n    },\n    templateUrl: 'wise5/classroomMonitor/classroomMonitorComponents/nodeProgress/navItem/navItem.html',\n    controller: NavItemController\n};\n\nexport default NavItem;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.es6 b/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.es6
index c25b2c9107..ce35e6e40c 100644
--- a/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.es6
+++ b/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.es6
@@ -98,6 +98,29 @@ class ClassroomMonitorProjectService extends ProjectService {
     }
     return null;
   }
+
+  /**
+   * Recursively calculates the node order.
+   * @param node
+   */
+  calculateNodeOrder(node) {
+    this.idToOrder[node.id] = {'order': this.nodeCount};
+    this.nodeCount++;
+    if (this.isGroupNode(node.id)) {
+      const childIds = node.ids;
+      for (let childId of childIds) {
+        const child = this.getNodeById(childId);
+        this.calculateNodeOrder(child);
+      }
+      const planningIds = node.availablePlanningNodes;
+      if (planningIds) {
+        for (let planningId of planningIds) {
+          const child = this.getNodeById(planningId.nodeId);
+          this.calculateNodeOrder(child);
+        }
+      }
+    }
+  };
 }
 
 ClassroomMonitorProjectService.$inject = [
diff --git a/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.js b/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.js
index 25919f6bab..dff8db6e02 100644
--- a/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.js
+++ b/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.js
@@ -169,6 +169,75 @@ var ClassroomMonitorProjectService = function (_ProjectService) {
       }
       return null;
     }
+
+    /**
+     * Recursively calculates the node order.
+     * @param node
+     */
+
+  }, {
+    key: 'calculateNodeOrder',
+    value: function calculateNodeOrder(node) {
+      this.idToOrder[node.id] = { 'order': this.nodeCount };
+      this.nodeCount++;
+      if (this.isGroupNode(node.id)) {
+        var childIds = node.ids;
+        var _iteratorNormalCompletion3 = true;
+        var _didIteratorError3 = false;
+        var _iteratorError3 = undefined;
+
+        try {
+          for (var _iterator3 = childIds[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
+            var childId = _step3.value;
+
+            var _child = this.getNodeById(childId);
+            this.calculateNodeOrder(_child);
+          }
+        } catch (err) {
+          _didIteratorError3 = true;
+          _iteratorError3 = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion3 && _iterator3.return) {
+              _iterator3.return();
+            }
+          } finally {
+            if (_didIteratorError3) {
+              throw _iteratorError3;
+            }
+          }
+        }
+
+        var planningIds = node.availablePlanningNodes;
+        if (planningIds) {
+          var _iteratorNormalCompletion4 = true;
+          var _didIteratorError4 = false;
+          var _iteratorError4 = undefined;
+
+          try {
+            for (var _iterator4 = planningIds[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
+              var planningId = _step4.value;
+
+              var child = this.getNodeById(planningId.nodeId);
+              this.calculateNodeOrder(child);
+            }
+          } catch (err) {
+            _didIteratorError4 = true;
+            _iteratorError4 = err;
+          } finally {
+            try {
+              if (!_iteratorNormalCompletion4 && _iterator4.return) {
+                _iterator4.return();
+              }
+            } finally {
+              if (_didIteratorError4) {
+                throw _iteratorError4;
+              }
+            }
+          }
+        }
+      }
+    }
   }]);
 
   return ClassroomMonitorProjectService;
diff --git a/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.js.map b/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.js.map
index 5af1e0f3ef..82e7e79c24 100644
--- a/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.js.map
+++ b/src/main/webapp/wise5/classroomMonitor/classroomMonitorProjectService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["classroomMonitorProjectService.es6"],"names":["ClassroomMonitorProjectService","$filter","$http","$injector","$q","$rootScope","ConfigService","UtilService","nodeId","nodeIdAndComponentIds","nodeContent","getNodeContentByNodeId","components","component","componentId","id","nodeIdAndComponentId","push","showPreviousWorkNodeId","showPreviousWorkComponentId","nodePosition","getNodePositionById","branchLetterRegex","match","exec","$inject"],"mappings":"AAAA;;;;;;;;AACA;;;;;;;;;;;;IAEMA,8B;;;AACJ,0CAAYC,OAAZ,EAAqBC,KAArB,EAA4BC,SAA5B,EAAuCC,EAAvC,EAA2CC,UAA3C,EAAuDC,aAAvD,EAAsEC,WAAtE,EAAmF;AAAA;;AAAA,2JAC3EN,OAD2E,EAClEC,KADkE,EAC3DC,SAD2D,EAChDC,EADgD,EAC5CC,UAD4C,EAChCC,aADgC,EACjBC,WADiB;AAElF;;AAED;;;;;;;;;;8CAM0BC,M,EAAQ;AAChC,UAAMC,wBAAwB,EAA9B;AACA,UAAID,UAAU,IAAd,EAAoB;AAClB,YAAME,cAAc,KAAKC,sBAAL,CAA4BH,MAA5B,CAApB;AACA,YAAIE,eAAe,IAAnB,EAAyB;AACvB,cAAME,aAAaF,YAAYE,UAA/B;AACA,cAAIA,cAAc,IAAlB,EAAwB;AAAA;AAAA;AAAA;;AAAA;AACtB,mCAAsBA,UAAtB,8HAAkC;AAAA,oBAAzBC,SAAyB;;AAChC,oBAAIA,aAAa,IAAjB,EAAuB;AACrB,sBAAMC,cAAcD,UAAUE,EAA9B;AACA,sBAAMC,uBAAuB,EAA7B;AACAA,uCAAqBR,MAArB,GAA8BA,MAA9B;AACAQ,uCAAqBF,WAArB,GAAmCA,WAAnC;AACAL,wCAAsBQ,IAAtB,CAA2BD,oBAA3B;AACD;AACF;AATqB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAUvB;AACF;AACF;AACD,aAAOP,qBAAP;AACD;;AAED;;;;;;;;;;8DAO0CD,M,EAAQ;AAChD,UAAMC,wBAAwB,EAA9B;AACA,UAAID,UAAU,IAAd,EAAoB;AAClB,YAAME,cAAc,KAAKC,sBAAL,CAA4BH,MAA5B,CAApB;AACA,YAAIE,eAAe,IAAnB,EAAyB;AACvB,cAAME,aAAaF,YAAYE,UAA/B;AACA,cAAIA,cAAc,IAAlB,EAAwB;AAAA;AAAA;AAAA;;AAAA;AACtB,oCAAsBA,UAAtB,mIAAkC;AAAA,oBAAzBC,SAAyB;;AAChC,oBAAIA,aAAa,IAAjB,EAAuB;AACrB,sBAAMK,yBAAyBL,UAAUK,sBAAzC;AACA,sBAAMC,8BACJN,UAAUM,2BADZ;AAEA,sBAAID,0BAA0B,IAA1B,IACFC,+BAA+B,IADjC,EACuC;AACrC,wBAAMH,uBAAuB,EAA7B;AACAA,yCAAqBR,MAArB,GAA8BU,sBAA9B;AACAF,yCAAqBF,WAArB,GAAmCK,2BAAnC;AACAV,0CAAsBQ,IAAtB,CAA2BD,oBAA3B;AACD;AACF;AACF;AAdqB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAevB;AACF;AACF;AACD,aAAOP,qBAAP;AACD;;AAED;;;;;;;;;;oCAOgBD,M,EAAQ;AACtB,UAAIA,UAAU,IAAd,EAAoB;AAClB;AACA,YAAMY,eAAe,KAAKC,mBAAL,CAAyBb,MAAzB,CAArB;;AAEA,YAAIY,gBAAgB,IAApB,EAA0B;AACxB;AACA,cAAME,oBAAoB,WAA1B;;AAEA;AACA,cAAMC,QAAQD,kBAAkBE,IAAlB,CAAuBJ,YAAvB,CAAd;;AAEA,cAAIG,SAAS,IAAb,EAAmB;AACjB;;;;AAIA,mBAAOA,MAAM,CAAN,CAAP;AACD;AACF;AACF;AACD,aAAO,IAAP;AACD;;;;;;AAGHvB,+BAA+ByB,OAA/B,GAAyC,CACvC,SADuC,EAEvC,OAFuC,EAGvC,WAHuC,EAIvC,IAJuC,EAKvC,YALuC,EAMvC,eANuC,EAOvC,aAPuC,CAAzC;;kBAUezB,8B","file":"classroomMonitorProjectService.js","sourcesContent":["'use strict';\nimport ProjectService from '../services/projectService';\n\nclass ClassroomMonitorProjectService extends ProjectService {\n  constructor($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService) {\n    super($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService);\n  }\n\n  /**\n   * Get the node ids and component ids in a node\n   * @param nodeId get the node ids and component ids in this node\n   * @returns an array of objects. the objects contain a node id\n   * and component id.\n   */\n  getNodeIdsAndComponentIds(nodeId) {\n    const nodeIdAndComponentIds = [];\n    if (nodeId != null) {\n      const nodeContent = this.getNodeContentByNodeId(nodeId);\n      if (nodeContent != null) {\n        const components = nodeContent.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              const componentId = component.id;\n              const nodeIdAndComponentId = {};\n              nodeIdAndComponentId.nodeId = nodeId;\n              nodeIdAndComponentId.componentId = componentId;\n              nodeIdAndComponentIds.push(nodeIdAndComponentId);\n            }\n          }\n        }\n      }\n    }\n    return nodeIdAndComponentIds;\n  }\n\n  /**\n   * Get the show previous work node ids and component ids in a node\n   * @param nodeId get the show previous work node ids and component ids in\n   * this node\n   * @returns an array of objects. the objects contain a node id\n   * and component id.\n   */\n  getShowPreviousWorkNodeIdsAndComponentIds(nodeId) {\n    const nodeIdAndComponentIds = [];\n    if (nodeId != null) {\n      const nodeContent = this.getNodeContentByNodeId(nodeId);\n      if (nodeContent != null) {\n        const components = nodeContent.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              const showPreviousWorkNodeId = component.showPreviousWorkNodeId;\n              const showPreviousWorkComponentId =\n                component.showPreviousWorkComponentId;\n              if (showPreviousWorkNodeId != null &&\n                showPreviousWorkComponentId != null) {\n                const nodeIdAndComponentId = {};\n                nodeIdAndComponentId.nodeId = showPreviousWorkNodeId;\n                nodeIdAndComponentId.componentId = showPreviousWorkComponentId;\n                nodeIdAndComponentIds.push(nodeIdAndComponentId);\n              }\n            }\n          }\n        }\n      }\n    }\n    return nodeIdAndComponentIds;\n  }\n\n  /**\n   * Get the branch letter in the node position string if the node is in a\n   * branch path\n   * @param nodeId the node id we want the branch letter for\n   * @return the branch letter in the node position if the node is in a branch\n   * path\n   */\n  getBranchLetter(nodeId) {\n    if (nodeId != null) {\n      // get the node position e.g. \"1.8\" or \"1.9 A\"\n      const nodePosition = this.getNodePositionById(nodeId);\n\n      if (nodePosition != null) {\n        // regex for extracting the branch letter\n        const branchLetterRegex = /.*([A-Z])/;\n\n        // run the regex on the node position string\n        const match = branchLetterRegex.exec(nodePosition);\n\n        if (match != null) {\n          /*\n           * the node position has a branch letter so we will get it\n           * from the matched group\n           */\n          return match[1];\n        }\n      }\n    }\n    return null;\n  }\n}\n\nClassroomMonitorProjectService.$inject = [\n  '$filter',\n  '$http',\n  '$injector',\n  '$q',\n  '$rootScope',\n  'ConfigService',\n  'UtilService'\n];\n\nexport default ClassroomMonitorProjectService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["classroomMonitorProjectService.es6"],"names":["ClassroomMonitorProjectService","$filter","$http","$injector","$q","$rootScope","ConfigService","UtilService","nodeId","nodeIdAndComponentIds","nodeContent","getNodeContentByNodeId","components","component","componentId","id","nodeIdAndComponentId","push","showPreviousWorkNodeId","showPreviousWorkComponentId","nodePosition","getNodePositionById","branchLetterRegex","match","exec","node","idToOrder","nodeCount","isGroupNode","childIds","ids","childId","child","getNodeById","calculateNodeOrder","planningIds","availablePlanningNodes","planningId","$inject"],"mappings":"AAAA;;;;;;;;AACA;;;;;;;;;;;;IAEMA,8B;;;AACJ,0CAAYC,OAAZ,EAAqBC,KAArB,EAA4BC,SAA5B,EAAuCC,EAAvC,EAA2CC,UAA3C,EAAuDC,aAAvD,EAAsEC,WAAtE,EAAmF;AAAA;;AAAA,2JAC3EN,OAD2E,EAClEC,KADkE,EAC3DC,SAD2D,EAChDC,EADgD,EAC5CC,UAD4C,EAChCC,aADgC,EACjBC,WADiB;AAElF;;AAED;;;;;;;;;;8CAM0BC,M,EAAQ;AAChC,UAAMC,wBAAwB,EAA9B;AACA,UAAID,UAAU,IAAd,EAAoB;AAClB,YAAME,cAAc,KAAKC,sBAAL,CAA4BH,MAA5B,CAApB;AACA,YAAIE,eAAe,IAAnB,EAAyB;AACvB,cAAME,aAAaF,YAAYE,UAA/B;AACA,cAAIA,cAAc,IAAlB,EAAwB;AAAA;AAAA;AAAA;;AAAA;AACtB,mCAAsBA,UAAtB,8HAAkC;AAAA,oBAAzBC,SAAyB;;AAChC,oBAAIA,aAAa,IAAjB,EAAuB;AACrB,sBAAMC,cAAcD,UAAUE,EAA9B;AACA,sBAAMC,uBAAuB,EAA7B;AACAA,uCAAqBR,MAArB,GAA8BA,MAA9B;AACAQ,uCAAqBF,WAArB,GAAmCA,WAAnC;AACAL,wCAAsBQ,IAAtB,CAA2BD,oBAA3B;AACD;AACF;AATqB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAUvB;AACF;AACF;AACD,aAAOP,qBAAP;AACD;;AAED;;;;;;;;;;8DAO0CD,M,EAAQ;AAChD,UAAMC,wBAAwB,EAA9B;AACA,UAAID,UAAU,IAAd,EAAoB;AAClB,YAAME,cAAc,KAAKC,sBAAL,CAA4BH,MAA5B,CAApB;AACA,YAAIE,eAAe,IAAnB,EAAyB;AACvB,cAAME,aAAaF,YAAYE,UAA/B;AACA,cAAIA,cAAc,IAAlB,EAAwB;AAAA;AAAA;AAAA;;AAAA;AACtB,oCAAsBA,UAAtB,mIAAkC;AAAA,oBAAzBC,SAAyB;;AAChC,oBAAIA,aAAa,IAAjB,EAAuB;AACrB,sBAAMK,yBAAyBL,UAAUK,sBAAzC;AACA,sBAAMC,8BACJN,UAAUM,2BADZ;AAEA,sBAAID,0BAA0B,IAA1B,IACFC,+BAA+B,IADjC,EACuC;AACrC,wBAAMH,uBAAuB,EAA7B;AACAA,yCAAqBR,MAArB,GAA8BU,sBAA9B;AACAF,yCAAqBF,WAArB,GAAmCK,2BAAnC;AACAV,0CAAsBQ,IAAtB,CAA2BD,oBAA3B;AACD;AACF;AACF;AAdqB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAevB;AACF;AACF;AACD,aAAOP,qBAAP;AACD;;AAED;;;;;;;;;;oCAOgBD,M,EAAQ;AACtB,UAAIA,UAAU,IAAd,EAAoB;AAClB;AACA,YAAMY,eAAe,KAAKC,mBAAL,CAAyBb,MAAzB,CAArB;;AAEA,YAAIY,gBAAgB,IAApB,EAA0B;AACxB;AACA,cAAME,oBAAoB,WAA1B;;AAEA;AACA,cAAMC,QAAQD,kBAAkBE,IAAlB,CAAuBJ,YAAvB,CAAd;;AAEA,cAAIG,SAAS,IAAb,EAAmB;AACjB;;;;AAIA,mBAAOA,MAAM,CAAN,CAAP;AACD;AACF;AACF;AACD,aAAO,IAAP;AACD;;AAED;;;;;;;uCAImBE,I,EAAM;AACvB,WAAKC,SAAL,CAAeD,KAAKV,EAApB,IAA0B,EAAC,SAAS,KAAKY,SAAf,EAA1B;AACA,WAAKA,SAAL;AACA,UAAI,KAAKC,WAAL,CAAiBH,KAAKV,EAAtB,CAAJ,EAA+B;AAC7B,YAAMc,WAAWJ,KAAKK,GAAtB;AAD6B;AAAA;AAAA;;AAAA;AAE7B,gCAAoBD,QAApB,mIAA8B;AAAA,gBAArBE,OAAqB;;AAC5B,gBAAMC,SAAQ,KAAKC,WAAL,CAAiBF,OAAjB,CAAd;AACA,iBAAKG,kBAAL,CAAwBF,MAAxB;AACD;AAL4B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAM7B,YAAMG,cAAcV,KAAKW,sBAAzB;AACA,YAAID,WAAJ,EAAiB;AAAA;AAAA;AAAA;;AAAA;AACf,kCAAuBA,WAAvB,mIAAoC;AAAA,kBAA3BE,UAA2B;;AAClC,kBAAML,QAAQ,KAAKC,WAAL,CAAiBI,WAAW7B,MAA5B,CAAd;AACA,mBAAK0B,kBAAL,CAAwBF,KAAxB;AACD;AAJc;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAKhB;AACF;AACF;;;;;;AAGHhC,+BAA+BsC,OAA/B,GAAyC,CACvC,SADuC,EAEvC,OAFuC,EAGvC,WAHuC,EAIvC,IAJuC,EAKvC,YALuC,EAMvC,eANuC,EAOvC,aAPuC,CAAzC;;kBAUetC,8B","file":"classroomMonitorProjectService.js","sourcesContent":["'use strict';\nimport ProjectService from '../services/projectService';\n\nclass ClassroomMonitorProjectService extends ProjectService {\n  constructor($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService) {\n    super($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService);\n  }\n\n  /**\n   * Get the node ids and component ids in a node\n   * @param nodeId get the node ids and component ids in this node\n   * @returns an array of objects. the objects contain a node id\n   * and component id.\n   */\n  getNodeIdsAndComponentIds(nodeId) {\n    const nodeIdAndComponentIds = [];\n    if (nodeId != null) {\n      const nodeContent = this.getNodeContentByNodeId(nodeId);\n      if (nodeContent != null) {\n        const components = nodeContent.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              const componentId = component.id;\n              const nodeIdAndComponentId = {};\n              nodeIdAndComponentId.nodeId = nodeId;\n              nodeIdAndComponentId.componentId = componentId;\n              nodeIdAndComponentIds.push(nodeIdAndComponentId);\n            }\n          }\n        }\n      }\n    }\n    return nodeIdAndComponentIds;\n  }\n\n  /**\n   * Get the show previous work node ids and component ids in a node\n   * @param nodeId get the show previous work node ids and component ids in\n   * this node\n   * @returns an array of objects. the objects contain a node id\n   * and component id.\n   */\n  getShowPreviousWorkNodeIdsAndComponentIds(nodeId) {\n    const nodeIdAndComponentIds = [];\n    if (nodeId != null) {\n      const nodeContent = this.getNodeContentByNodeId(nodeId);\n      if (nodeContent != null) {\n        const components = nodeContent.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              const showPreviousWorkNodeId = component.showPreviousWorkNodeId;\n              const showPreviousWorkComponentId =\n                component.showPreviousWorkComponentId;\n              if (showPreviousWorkNodeId != null &&\n                showPreviousWorkComponentId != null) {\n                const nodeIdAndComponentId = {};\n                nodeIdAndComponentId.nodeId = showPreviousWorkNodeId;\n                nodeIdAndComponentId.componentId = showPreviousWorkComponentId;\n                nodeIdAndComponentIds.push(nodeIdAndComponentId);\n              }\n            }\n          }\n        }\n      }\n    }\n    return nodeIdAndComponentIds;\n  }\n\n  /**\n   * Get the branch letter in the node position string if the node is in a\n   * branch path\n   * @param nodeId the node id we want the branch letter for\n   * @return the branch letter in the node position if the node is in a branch\n   * path\n   */\n  getBranchLetter(nodeId) {\n    if (nodeId != null) {\n      // get the node position e.g. \"1.8\" or \"1.9 A\"\n      const nodePosition = this.getNodePositionById(nodeId);\n\n      if (nodePosition != null) {\n        // regex for extracting the branch letter\n        const branchLetterRegex = /.*([A-Z])/;\n\n        // run the regex on the node position string\n        const match = branchLetterRegex.exec(nodePosition);\n\n        if (match != null) {\n          /*\n           * the node position has a branch letter so we will get it\n           * from the matched group\n           */\n          return match[1];\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Recursively calculates the node order.\n   * @param node\n   */\n  calculateNodeOrder(node) {\n    this.idToOrder[node.id] = {'order': this.nodeCount};\n    this.nodeCount++;\n    if (this.isGroupNode(node.id)) {\n      const childIds = node.ids;\n      for (let childId of childIds) {\n        const child = this.getNodeById(childId);\n        this.calculateNodeOrder(child);\n      }\n      const planningIds = node.availablePlanningNodes;\n      if (planningIds) {\n        for (let planningId of planningIds) {\n          const child = this.getNodeById(planningId.nodeId);\n          this.calculateNodeOrder(child);\n        }\n      }\n    }\n  };\n}\n\nClassroomMonitorProjectService.$inject = [\n  '$filter',\n  '$http',\n  '$injector',\n  '$q',\n  '$rootScope',\n  'ConfigService',\n  'UtilService'\n];\n\nexport default ClassroomMonitorProjectService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/classroomMonitor/main.es6 b/src/main/webapp/wise5/classroomMonitor/main.es6
index c7d6cc7d4a..01d597bbda 100644
--- a/src/main/webapp/wise5/classroomMonitor/main.es6
+++ b/src/main/webapp/wise5/classroomMonitor/main.es6
@@ -26,6 +26,7 @@ import ConceptMapComponentModule from '../components/conceptMap/conceptMapCompon
 import ConfigService from '../services/configService';
 import CRaterService from '../services/cRaterService';
 import Components from '../directives/components';
+import ComponentService from '../components/componentService';
 import DashboardController from './dashboard/dashboardController';
 import DataExportController from './dataExport/dataExportController';
 import DiscussionComponentModule from '../components/discussion/discussionComponentModule';
@@ -49,6 +50,7 @@ import NotebookService from '../services/notebookService';
 import NotificationService from '../services/notificationService';
 import OpenResponseComponentModule from '../components/openResponse/openResponseComponentModule';
 import OutsideURLComponentModule from '../components/outsideURL/outsideURLComponentModule';
+import PlanningService from '../services/planningService';
 import ProjectService from '../services/projectService';
 import SessionService from '../services/sessionService';
 import StudentAssetService from '../services/studentAssetService';
@@ -99,12 +101,14 @@ let classroomMonitorModule = angular.module('classroomMonitor', [
     ])
     .service(AchievementService.name, AchievementService)
     .service(AnnotationService.name, AnnotationService)
+    .service(ComponentService.name, ComponentService)
     .service(ConfigService.name, ConfigService)
     .service(CRaterService.name, CRaterService)
     .service(HttpInterceptor.name, HttpInterceptor)
     .service(NodeService.name, NodeService)
     .service(NotebookService.name, NotebookService)
     .service(NotificationService.name, NotificationService)
+    .service(PlanningService.name, PlanningService)
     .service(ProjectService.name, ClassroomMonitorProjectService)
     .service(SessionService.name, SessionService)
     .service(StudentAssetService.name, StudentAssetService)
diff --git a/src/main/webapp/wise5/classroomMonitor/main.js b/src/main/webapp/wise5/classroomMonitor/main.js
index b1d3b3e0bc..f12e96178a 100644
--- a/src/main/webapp/wise5/classroomMonitor/main.js
+++ b/src/main/webapp/wise5/classroomMonitor/main.js
@@ -106,6 +106,10 @@ var _components = require('../directives/components');
 
 var _components2 = _interopRequireDefault(_components);
 
+var _componentService = require('../components/componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
+
 var _dashboardController = require('./dashboard/dashboardController');
 
 var _dashboardController2 = _interopRequireDefault(_dashboardController);
@@ -198,6 +202,10 @@ var _outsideURLComponentModule = require('../components/outsideURL/outsideURLCom
 
 var _outsideURLComponentModule2 = _interopRequireDefault(_outsideURLComponentModule);
 
+var _planningService = require('../services/planningService');
+
+var _planningService2 = _interopRequireDefault(_planningService);
+
 var _projectService = require('../services/projectService');
 
 var _projectService2 = _interopRequireDefault(_projectService);
@@ -252,7 +260,7 @@ var _moment2 = _interopRequireDefault(_moment);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-var classroomMonitorModule = _angular2.default.module('classroomMonitor', [(0, _angularDragula2.default)(_angular2.default), 'angularMoment', 'angular-inview', 'angular-toArrayFilter', 'animationComponentModule', 'audioOscillatorComponentModule', 'components', 'conceptMapComponentModule', 'classroomMonitor.components', 'discussionComponentModule', 'drawComponentModule', 'embeddedComponentModule', 'graphComponentModule', 'highcharts-ng', 'htmlComponentModule', 'labelComponentModule', 'matchComponentModule', 'multipleChoiceComponentModule', 'ngAnimate', 'ngAria', 'ngFileSaver', 'ngFileUpload', 'ngMaterial', 'ngSanitize', 'ngWebSocket', 'notebook', 'openResponseComponentModule', 'outsideURLComponentModule', 'pascalprecht.translate', 'tableComponentModule', 'ui.router']).service(_achievementService2.default.name, _achievementService2.default).service(_annotationService2.default.name, _annotationService2.default).service(_configService2.default.name, _configService2.default).service(_cRaterService2.default.name, _cRaterService2.default).service(_httpInterceptor2.default.name, _httpInterceptor2.default).service(_nodeService2.default.name, _nodeService2.default).service(_notebookService2.default.name, _notebookService2.default).service(_notificationService2.default.name, _notificationService2.default).service(_projectService2.default.name, _classroomMonitorProjectService2.default).service(_sessionService2.default.name, _sessionService2.default).service(_studentAssetService2.default.name, _studentAssetService2.default).service(_studentDataService2.default.name, _studentDataService2.default).service(_studentStatusService2.default.name, _studentStatusService2.default).service(_studentWebSocketService2.default.name, _studentWebSocketService2.default).service(_teacherDataService2.default.name, _teacherDataService2.default).service(_teacherWebSocketService2.default.name, _teacherWebSocketService2.default).service(_utilService2.default.name, _utilService2.default).controller(_classroomMonitorController2.default.name, _classroomMonitorController2.default).controller(_dataExportController2.default.name, _dataExportController2.default).controller(_milestonesController2.default.name, _milestonesController2.default).controller(_nodeGradingController2.default.name, _nodeGradingController2.default).controller(_nodeProgressController2.default.name, _nodeProgressController2.default).controller(_notebookGradingController2.default.name, _notebookGradingController2.default).controller(_studentGradingController2.default.name, _studentGradingController2.default).controller(_studentProgressController2.default.name, _studentProgressController2.default).config(['$urlRouterProvider', '$stateProvider', '$translateProvider', '$translatePartialLoaderProvider', '$controllerProvider', '$mdThemingProvider', '$httpProvider', function ($urlRouterProvider, $stateProvider, $translateProvider, $translatePartialLoaderProvider, $controllerProvider, $mdThemingProvider, $httpProvider) {
+var classroomMonitorModule = _angular2.default.module('classroomMonitor', [(0, _angularDragula2.default)(_angular2.default), 'angularMoment', 'angular-inview', 'angular-toArrayFilter', 'animationComponentModule', 'audioOscillatorComponentModule', 'components', 'conceptMapComponentModule', 'classroomMonitor.components', 'discussionComponentModule', 'drawComponentModule', 'embeddedComponentModule', 'graphComponentModule', 'highcharts-ng', 'htmlComponentModule', 'labelComponentModule', 'matchComponentModule', 'multipleChoiceComponentModule', 'ngAnimate', 'ngAria', 'ngFileSaver', 'ngFileUpload', 'ngMaterial', 'ngSanitize', 'ngWebSocket', 'notebook', 'openResponseComponentModule', 'outsideURLComponentModule', 'pascalprecht.translate', 'tableComponentModule', 'ui.router']).service(_achievementService2.default.name, _achievementService2.default).service(_annotationService2.default.name, _annotationService2.default).service(_componentService2.default.name, _componentService2.default).service(_configService2.default.name, _configService2.default).service(_cRaterService2.default.name, _cRaterService2.default).service(_httpInterceptor2.default.name, _httpInterceptor2.default).service(_nodeService2.default.name, _nodeService2.default).service(_notebookService2.default.name, _notebookService2.default).service(_notificationService2.default.name, _notificationService2.default).service(_planningService2.default.name, _planningService2.default).service(_projectService2.default.name, _classroomMonitorProjectService2.default).service(_sessionService2.default.name, _sessionService2.default).service(_studentAssetService2.default.name, _studentAssetService2.default).service(_studentDataService2.default.name, _studentDataService2.default).service(_studentStatusService2.default.name, _studentStatusService2.default).service(_studentWebSocketService2.default.name, _studentWebSocketService2.default).service(_teacherDataService2.default.name, _teacherDataService2.default).service(_teacherWebSocketService2.default.name, _teacherWebSocketService2.default).service(_utilService2.default.name, _utilService2.default).controller(_classroomMonitorController2.default.name, _classroomMonitorController2.default).controller(_dataExportController2.default.name, _dataExportController2.default).controller(_milestonesController2.default.name, _milestonesController2.default).controller(_nodeGradingController2.default.name, _nodeGradingController2.default).controller(_nodeProgressController2.default.name, _nodeProgressController2.default).controller(_notebookGradingController2.default.name, _notebookGradingController2.default).controller(_studentGradingController2.default.name, _studentGradingController2.default).controller(_studentProgressController2.default.name, _studentProgressController2.default).config(['$urlRouterProvider', '$stateProvider', '$translateProvider', '$translatePartialLoaderProvider', '$controllerProvider', '$mdThemingProvider', '$httpProvider', function ($urlRouterProvider, $stateProvider, $translateProvider, $translatePartialLoaderProvider, $controllerProvider, $mdThemingProvider, $httpProvider) {
 
     $urlRouterProvider.otherwise('/project/');
 
diff --git a/src/main/webapp/wise5/classroomMonitor/main.js.map b/src/main/webapp/wise5/classroomMonitor/main.js.map
index 855f61ccf6..d70afaa80e 100644
--- a/src/main/webapp/wise5/classroomMonitor/main.js.map
+++ b/src/main/webapp/wise5/classroomMonitor/main.js.map
@@ -1 +1 @@
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strict';\n\nimport '../themes/default/js/webfonts';\nimport $ from 'jquery';\nimport AchievementService from '../services/achievementService';\nimport angular from 'angular';\nimport angularDragula from 'angular-dragula';\nimport angularFileSaver from 'angular-file-saver';\nimport angularInview from 'angular-inview';\nimport angularMoment from 'angular-moment';\nimport angularToArrayFilter from 'lib/angular-toArrayFilter/toArrayFilter';\nimport angularUIRouter from 'angular-ui-router';\nimport ngFileUpload from 'ng-file-upload';\nimport ngMaterial from 'angular-material';\nimport angularSanitize from 'angular-sanitize';\nimport angularTranslate from 'angular-translate';\nimport angularTranslateLoaderPartial from 'angular-translate-loader-partial';\nimport ngWebSocket from 'angular-websocket';\nimport AnimationComponentModule from '../components/animation/animationComponentModule';\nimport AnnotationService from '../services/annotationService';\nimport AudioOscillatorComponentModule from '../components/audioOscillator/audioOscillatorComponentModule';\nimport ClassroomMonitorComponents from './classroomMonitorComponents';\nimport ClassroomMonitorController from './classroomMonitorController';\nimport ClassroomMonitorProjectService from './classroomMonitorProjectService';\nimport ConceptMapComponentModule from '../components/conceptMap/conceptMapComponentModule';\nimport ConfigService from '../services/configService';\nimport CRaterService from '../services/cRaterService';\nimport Components from '../directives/components';\nimport DashboardController from './dashboard/dashboardController';\nimport DataExportController from './dataExport/dataExportController';\nimport DiscussionComponentModule from '../components/discussion/discussionComponentModule';\nimport DrawComponentModule from '../components/draw/drawComponentModule';\nimport EmbeddedComponentModule from '../components/embedded/embeddedComponentModule';\nimport GraphComponentModule from '../components/graph/graphComponentModule';\nimport Highcharts from '../lib/highcharts@4.2.1';\nimport highchartsng from 'highcharts-ng';\nimport HTMLComponentModule from '../components/html/htmlComponentModule';\nimport HttpInterceptor from '../services/httpInterceptor';\nimport LabelComponentModule from '../components/label/labelComponentModule';\nimport MatchComponentModule from '../components/match/matchComponentModule';\nimport MilestonesController from './milestones/milestonesController';\nimport MultipleChoiceComponentModule from '../components/multipleChoice/multipleChoiceComponentModule';\nimport NodeGradingController from './nodeGrading/nodeGradingController';\nimport NodeProgressController from './nodeProgress/nodeProgressController';\nimport NodeService from '../services/nodeService';\nimport Notebook from '../directives/notebook/notebook';\nimport NotebookGradingController from './notebook/notebookGradingController';\nimport NotebookService from '../services/notebookService';\nimport NotificationService from '../services/notificationService';\nimport OpenResponseComponentModule from '../components/openResponse/openResponseComponentModule';\nimport OutsideURLComponentModule from '../components/outsideURL/outsideURLComponentModule';\nimport ProjectService from '../services/projectService';\nimport SessionService from '../services/sessionService';\nimport StudentAssetService from '../services/studentAssetService';\nimport StudentDataService from '../services/studentDataService';\nimport StudentGradingController from './studentGrading/studentGradingController';\nimport StudentProgressController from './studentProgress/studentProgressController';\nimport StudentStatusService from '../services/studentStatusService';\nimport StudentWebSocketService from '../services/studentWebSocketService';\nimport TableComponentModule from '../components/table/tableComponentModule';\nimport TeacherDataService from '../services/teacherDataService';\nimport TeacherWebSocketService from '../services/teacherWebSocketService';\nimport UtilService from '../services/utilService';\n\nimport moment from 'moment';\n\nlet classroomMonitorModule = angular.module('classroomMonitor', [\n        angularDragula(angular),\n        'angularMoment',\n        'angular-inview',\n        'angular-toArrayFilter',\n        'animationComponentModule',\n        'audioOscillatorComponentModule',\n        'components',\n        'conceptMapComponentModule',\n        'classroomMonitor.components',\n        'discussionComponentModule',\n        'drawComponentModule',\n        'embeddedComponentModule',\n        'graphComponentModule',\n        'highcharts-ng',\n        'htmlComponentModule',\n        'labelComponentModule',\n        'matchComponentModule',\n        'multipleChoiceComponentModule',\n        'ngAnimate',\n        'ngAria',\n        'ngFileSaver',\n        'ngFileUpload',\n        'ngMaterial',\n        'ngSanitize',\n        'ngWebSocket',\n        'notebook',\n        'openResponseComponentModule',\n        'outsideURLComponentModule',\n        'pascalprecht.translate',\n        'tableComponentModule',\n        'ui.router'\n    ])\n    .service(AchievementService.name, AchievementService)\n    .service(AnnotationService.name, AnnotationService)\n    .service(ConfigService.name, ConfigService)\n    .service(CRaterService.name, CRaterService)\n    .service(HttpInterceptor.name, HttpInterceptor)\n    .service(NodeService.name, NodeService)\n    .service(NotebookService.name, NotebookService)\n    .service(NotificationService.name, NotificationService)\n    .service(ProjectService.name, ClassroomMonitorProjectService)\n    .service(SessionService.name, SessionService)\n    .service(StudentAssetService.name, StudentAssetService)\n    .service(StudentDataService.name, StudentDataService)\n    .service(StudentStatusService.name, StudentStatusService)\n    .service(StudentWebSocketService.name, StudentWebSocketService)\n    .service(TeacherDataService.name, TeacherDataService)\n    .service(TeacherWebSocketService.name, TeacherWebSocketService)\n    .service(UtilService.name, UtilService)\n    .controller(ClassroomMonitorController.name, ClassroomMonitorController)\n    .controller(DataExportController.name, DataExportController)\n    .controller(MilestonesController.name, MilestonesController)\n    .controller(NodeGradingController.name, NodeGradingController)\n    .controller(NodeProgressController.name, NodeProgressController)\n    .controller(NotebookGradingController.name, NotebookGradingController)\n    .controller(StudentGradingController.name, StudentGradingController)\n    .controller(StudentProgressController.name, StudentProgressController)\n    .config([\n        '$urlRouterProvider',\n        '$stateProvider',\n        '$translateProvider',\n        '$translatePartialLoaderProvider',\n        '$controllerProvider',\n        '$mdThemingProvider',\n        '$httpProvider',\n        ($urlRouterProvider,\n         $stateProvider,\n         $translateProvider,\n         $translatePartialLoaderProvider,\n         $controllerProvider,\n         $mdThemingProvider,\n         $httpProvider) => {\n\n            $urlRouterProvider.otherwise('/project/');\n\n            $stateProvider\n                .state('root', {\n                    url: '',\n                    abstract: true,\n                    templateUrl: 'wise5/classroomMonitor/classroomMonitor.html',\n                    controller: 'ClassroomMonitorController',\n                    controllerAs: 'classroomMonitorController',\n                    resolve: {\n                        config: function(ConfigService) {\n                            var configURL = window.configURL;\n\n                            return ConfigService.retrieveConfig(configURL);\n                        },\n                        project: function(ProjectService, config) {\n                            return ProjectService.retrieveProject();\n                        },\n                        runStatus: function(TeacherDataService, config) {\n                            return TeacherDataService.retrieveRunStatus();\n                        },\n                        studentStatuses: function(StudentStatusService, config) {\n                            return StudentStatusService.retrieveStudentStatuses();\n                        },\n                        achievements: function (AchievementService, studentStatuses, config, project) {\n                            return AchievementService.retrieveAchievements();\n                        },\n                        notifications: function (NotificationService, ConfigService, studentStatuses, config, project) {\n                            //return NotificationService.retrieveNotifications(ConfigService.getWorkgroupId());\n                            return NotificationService.retrieveNotifications();\n                        },\n                        webSocket: function(TeacherWebSocketService, config) {\n                            return TeacherWebSocketService.initialize();\n                        },\n                        language: ($translate, ConfigService, config) => {\n                            let locale = ConfigService.getLocale();  // defaults to \"en\"\n                            $translate.use(locale);\n                        },\n                        sessionTimers: (SessionService, config) => {\n                            return SessionService.initializeSession();\n                        },\n                        annotations: function(TeacherDataService, config) {\n                            return TeacherDataService.retrieveAnnotations();\n                        }\n                    }\n                })\n                .state('root.teamLanding', {\n                    url: '/team',\n                    templateUrl: 'wise5/classroomMonitor/studentProgress/studentProgress.html',\n                    controller: 'StudentProgressController',\n                    controllerAs: 'studentProgressController'\n                })\n                .state('root.team', {\n                    url: '/team/:workgroupId',\n                    templateUrl: 'wise5/classroomMonitor/studentGrading/studentGrading.html',\n                    controller: 'StudentGradingController',\n                    controllerAs: 'studentGradingController',\n                    resolve: {\n                        studentData: function($stateParams, TeacherDataService, config) {\n                            return TeacherDataService.retrieveStudentDataByWorkgroupId($stateParams.workgroupId);\n                        }\n                    }\n                })\n                .state('root.project', {\n                    url: '/project/:nodeId?periodId&workgroupId',\n                    views: {\n                        'nodeView': {\n                            templateUrl: 'wise5/classroomMonitor/nodeGrading/nodeGrading.html',\n                            controller: 'NodeGradingController',\n                            controllerAs: 'nodeGradingController'\n                        }\n                    }\n                })\n                .state('root.dashboard', {\n                    url: '/dashboard',\n                    templateUrl: 'wise5/classroomMonitor/dashboard/dashboard.html',\n                    controller: 'DashboardController',\n                    controllerAs: 'dashboardController'\n                })\n                .state('root.export', {\n                    url: '/export',\n                    templateUrl: 'wise5/classroomMonitor/dataExport/dataExport.html',\n                    controller: 'DataExportController',\n                    controllerAs: 'dataExportController'\n                })\n                .state('root.milestones', {\n                    url: '/milestones',\n                    templateUrl: 'wise5/classroomMonitor/milestones/milestones.html',\n                    controller: 'MilestonesController',\n                    controllerAs: 'milestonesController'\n                })\n                .state('root.notebooks', {\n                    url: '/notebook',\n                    templateUrl: 'wise5/classroomMonitor/notebook/notebook.html',\n                    controller: 'NotebookGradingController',\n                    controllerAs: 'notebookGradingController',\n                    resolve: {\n                        notebook: function (NotebookService, ConfigService, config, project, StudentAssetService) {\n                            if (!ConfigService.isPreview()) {\n                                //StudentAssetService.retrieveAssets().then((studentAssets) => {\n                                    return NotebookService.retrieveNotebookItems().then((notebook) => {\n                                        return notebook;\n                                    });\n                                //});\n                            } else {\n                                return NotebookService.notebook;\n                            }\n                        }\n                    }\n                });\n\n            $httpProvider.interceptors.push('HttpInterceptor');\n\n            // Set up Translations\n            $translatePartialLoaderProvider.addPart('i18n');\n            $translatePartialLoaderProvider.addPart('classroomMonitor/i18n');\n            $translateProvider.useLoader('$translatePartialLoader', {\n                    urlTemplate: 'wise5/{part}/i18n_{lang}.json'\n            })\n            .fallbackLanguage(['en'])\n            .registerAvailableLanguageKeys(['el','en','es','ja','ko','pt','tr','zh_CN','zh_TW'], {\n                'en_US': 'en',\n                'en_UK': 'en'\n            })\n            .determinePreferredLanguage()\n            .useSanitizeValueStrategy('sanitizeParameters', 'escape');\n\n            $mdThemingProvider.definePalette('accent', {\n                '50': 'fde9e6',\n                '100': 'fbcbc4',\n                '200': 'f8aca1',\n                '300': 'f4897b',\n                '400': 'f2705f',\n                '500': 'f05843',\n                '600': 'da503c',\n                '700': 'c34736',\n                '800': 'aa3e2f',\n                '900': '7d2e23',\n                'A100': 'ff897d',\n                'A200': 'ff7061',\n                'A400': 'ff3829',\n                'A700': 'cc1705',\n                'contrastDefaultColor': 'light',\n                'contrastDarkColors': ['50', '100',\n                    '200', '300', 'A100'],\n                'contrastLightColors': undefined\n            });\n\n            $mdThemingProvider.theme('default')\n                .primaryPalette('blue', {\n                    'default': '800'\n                })\n                .accentPalette('accent',  {\n                    'default': '500'\n                })\n                .warnPalette('red', {\n                    'default': '800'\n                });\n\n            var lightMap = $mdThemingProvider.extendPalette('grey', {\n                'A100': 'ffffff'\n            });\n            $mdThemingProvider.definePalette('light', lightMap);\n\n            $mdThemingProvider.theme('light')\n                .primaryPalette('light', {\n                    'default': 'A100'\n                })\n                .accentPalette('blue', {\n                    'default': '900'\n                });\n\n            $mdThemingProvider.setDefaultTheme('default');\n            $mdThemingProvider.enableBrowserColor();\n\n            // moment.js default overrides\n            // TODO: add i18n support\n            moment.updateLocale('en', {\n                calendar: {\n                    lastDay : '[Yesterday at] LT',\n                    sameDay : '[Today at] LT',\n                    nextDay : '[Tomorrow at] LT',\n                    lastWeek : '[last] dddd [at] LT',\n                    nextWeek : 'dddd [at] LT',\n                    sameElse : 'll'\n                }\n            });\n        }]);\n\nexport default classroomMonitorModule;\n"]}
\ No newline at end of file
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strict';\n\nimport '../themes/default/js/webfonts';\nimport $ from 'jquery';\nimport AchievementService from '../services/achievementService';\nimport angular from 'angular';\nimport angularDragula from 'angular-dragula';\nimport angularFileSaver from 'angular-file-saver';\nimport angularInview from 'angular-inview';\nimport angularMoment from 'angular-moment';\nimport angularToArrayFilter from 'lib/angular-toArrayFilter/toArrayFilter';\nimport angularUIRouter from 'angular-ui-router';\nimport ngFileUpload from 'ng-file-upload';\nimport ngMaterial from 'angular-material';\nimport angularSanitize from 'angular-sanitize';\nimport angularTranslate from 'angular-translate';\nimport angularTranslateLoaderPartial from 'angular-translate-loader-partial';\nimport ngWebSocket from 'angular-websocket';\nimport AnimationComponentModule from '../components/animation/animationComponentModule';\nimport AnnotationService from '../services/annotationService';\nimport AudioOscillatorComponentModule from '../components/audioOscillator/audioOscillatorComponentModule';\nimport ClassroomMonitorComponents from './classroomMonitorComponents';\nimport ClassroomMonitorController from './classroomMonitorController';\nimport ClassroomMonitorProjectService from './classroomMonitorProjectService';\nimport ConceptMapComponentModule from '../components/conceptMap/conceptMapComponentModule';\nimport ConfigService from '../services/configService';\nimport CRaterService from '../services/cRaterService';\nimport Components from '../directives/components';\nimport ComponentService from '../components/componentService';\nimport DashboardController from './dashboard/dashboardController';\nimport DataExportController from './dataExport/dataExportController';\nimport DiscussionComponentModule from '../components/discussion/discussionComponentModule';\nimport DrawComponentModule from '../components/draw/drawComponentModule';\nimport EmbeddedComponentModule from '../components/embedded/embeddedComponentModule';\nimport GraphComponentModule from '../components/graph/graphComponentModule';\nimport Highcharts from '../lib/highcharts@4.2.1';\nimport highchartsng from 'highcharts-ng';\nimport HTMLComponentModule from '../components/html/htmlComponentModule';\nimport HttpInterceptor from '../services/httpInterceptor';\nimport LabelComponentModule from '../components/label/labelComponentModule';\nimport MatchComponentModule from '../components/match/matchComponentModule';\nimport MilestonesController from './milestones/milestonesController';\nimport MultipleChoiceComponentModule from '../components/multipleChoice/multipleChoiceComponentModule';\nimport NodeGradingController from './nodeGrading/nodeGradingController';\nimport NodeProgressController from './nodeProgress/nodeProgressController';\nimport NodeService from '../services/nodeService';\nimport Notebook from '../directives/notebook/notebook';\nimport NotebookGradingController from './notebook/notebookGradingController';\nimport NotebookService from '../services/notebookService';\nimport NotificationService from '../services/notificationService';\nimport OpenResponseComponentModule from '../components/openResponse/openResponseComponentModule';\nimport OutsideURLComponentModule from '../components/outsideURL/outsideURLComponentModule';\nimport PlanningService from '../services/planningService';\nimport ProjectService from '../services/projectService';\nimport SessionService from '../services/sessionService';\nimport StudentAssetService from '../services/studentAssetService';\nimport StudentDataService from '../services/studentDataService';\nimport StudentGradingController from './studentGrading/studentGradingController';\nimport StudentProgressController from './studentProgress/studentProgressController';\nimport StudentStatusService from '../services/studentStatusService';\nimport StudentWebSocketService from '../services/studentWebSocketService';\nimport TableComponentModule from '../components/table/tableComponentModule';\nimport TeacherDataService from '../services/teacherDataService';\nimport TeacherWebSocketService from '../services/teacherWebSocketService';\nimport UtilService from '../services/utilService';\n\nimport moment from 'moment';\n\nlet classroomMonitorModule = angular.module('classroomMonitor', [\n        angularDragula(angular),\n        'angularMoment',\n        'angular-inview',\n        'angular-toArrayFilter',\n        'animationComponentModule',\n        'audioOscillatorComponentModule',\n        'components',\n        'conceptMapComponentModule',\n        'classroomMonitor.components',\n        'discussionComponentModule',\n        'drawComponentModule',\n        'embeddedComponentModule',\n        'graphComponentModule',\n        'highcharts-ng',\n        'htmlComponentModule',\n        'labelComponentModule',\n        'matchComponentModule',\n        'multipleChoiceComponentModule',\n        'ngAnimate',\n        'ngAria',\n        'ngFileSaver',\n        'ngFileUpload',\n        'ngMaterial',\n        'ngSanitize',\n        'ngWebSocket',\n        'notebook',\n        'openResponseComponentModule',\n        'outsideURLComponentModule',\n        'pascalprecht.translate',\n        'tableComponentModule',\n        'ui.router'\n    ])\n    .service(AchievementService.name, AchievementService)\n    .service(AnnotationService.name, AnnotationService)\n    .service(ComponentService.name, ComponentService)\n    .service(ConfigService.name, ConfigService)\n    .service(CRaterService.name, CRaterService)\n    .service(HttpInterceptor.name, HttpInterceptor)\n    .service(NodeService.name, NodeService)\n    .service(NotebookService.name, NotebookService)\n    .service(NotificationService.name, NotificationService)\n    .service(PlanningService.name, PlanningService)\n    .service(ProjectService.name, ClassroomMonitorProjectService)\n    .service(SessionService.name, SessionService)\n    .service(StudentAssetService.name, StudentAssetService)\n    .service(StudentDataService.name, StudentDataService)\n    .service(StudentStatusService.name, StudentStatusService)\n    .service(StudentWebSocketService.name, StudentWebSocketService)\n    .service(TeacherDataService.name, TeacherDataService)\n    .service(TeacherWebSocketService.name, TeacherWebSocketService)\n    .service(UtilService.name, UtilService)\n    .controller(ClassroomMonitorController.name, ClassroomMonitorController)\n    .controller(DataExportController.name, DataExportController)\n    .controller(MilestonesController.name, MilestonesController)\n    .controller(NodeGradingController.name, NodeGradingController)\n    .controller(NodeProgressController.name, NodeProgressController)\n    .controller(NotebookGradingController.name, NotebookGradingController)\n    .controller(StudentGradingController.name, StudentGradingController)\n    .controller(StudentProgressController.name, StudentProgressController)\n    .config([\n        '$urlRouterProvider',\n        '$stateProvider',\n        '$translateProvider',\n        '$translatePartialLoaderProvider',\n        '$controllerProvider',\n        '$mdThemingProvider',\n        '$httpProvider',\n        ($urlRouterProvider,\n         $stateProvider,\n         $translateProvider,\n         $translatePartialLoaderProvider,\n         $controllerProvider,\n         $mdThemingProvider,\n         $httpProvider) => {\n\n            $urlRouterProvider.otherwise('/project/');\n\n            $stateProvider\n                .state('root', {\n                    url: '',\n                    abstract: true,\n                    templateUrl: 'wise5/classroomMonitor/classroomMonitor.html',\n                    controller: 'ClassroomMonitorController',\n                    controllerAs: 'classroomMonitorController',\n                    resolve: {\n                        config: function(ConfigService) {\n                            var configURL = window.configURL;\n\n                            return ConfigService.retrieveConfig(configURL);\n                        },\n                        project: function(ProjectService, config) {\n                            return ProjectService.retrieveProject();\n                        },\n                        runStatus: function(TeacherDataService, config) {\n                            return TeacherDataService.retrieveRunStatus();\n                        },\n                        studentStatuses: function(StudentStatusService, config) {\n                            return StudentStatusService.retrieveStudentStatuses();\n                        },\n                        achievements: function (AchievementService, studentStatuses, config, project) {\n                            return AchievementService.retrieveAchievements();\n                        },\n                        notifications: function (NotificationService, ConfigService, studentStatuses, config, project) {\n                            //return NotificationService.retrieveNotifications(ConfigService.getWorkgroupId());\n                            return NotificationService.retrieveNotifications();\n                        },\n                        webSocket: function(TeacherWebSocketService, config) {\n                            return TeacherWebSocketService.initialize();\n                        },\n                        language: ($translate, ConfigService, config) => {\n                            let locale = ConfigService.getLocale();  // defaults to \"en\"\n                            $translate.use(locale);\n                        },\n                        sessionTimers: (SessionService, config) => {\n                            return SessionService.initializeSession();\n                        },\n                        annotations: function(TeacherDataService, config) {\n                            return TeacherDataService.retrieveAnnotations();\n                        }\n                    }\n                })\n                .state('root.teamLanding', {\n                    url: '/team',\n                    templateUrl: 'wise5/classroomMonitor/studentProgress/studentProgress.html',\n                    controller: 'StudentProgressController',\n                    controllerAs: 'studentProgressController'\n                })\n                .state('root.team', {\n                    url: '/team/:workgroupId',\n                    templateUrl: 'wise5/classroomMonitor/studentGrading/studentGrading.html',\n                    controller: 'StudentGradingController',\n                    controllerAs: 'studentGradingController',\n                    resolve: {\n                        studentData: function($stateParams, TeacherDataService, config) {\n                            return TeacherDataService.retrieveStudentDataByWorkgroupId($stateParams.workgroupId);\n                        }\n                    }\n                })\n                .state('root.project', {\n                    url: '/project/:nodeId?periodId&workgroupId',\n                    views: {\n                        'nodeView': {\n                            templateUrl: 'wise5/classroomMonitor/nodeGrading/nodeGrading.html',\n                            controller: 'NodeGradingController',\n                            controllerAs: 'nodeGradingController'\n                        }\n                    }\n                })\n                .state('root.dashboard', {\n                    url: '/dashboard',\n                    templateUrl: 'wise5/classroomMonitor/dashboard/dashboard.html',\n                    controller: 'DashboardController',\n                    controllerAs: 'dashboardController'\n                })\n                .state('root.export', {\n                    url: '/export',\n                    templateUrl: 'wise5/classroomMonitor/dataExport/dataExport.html',\n                    controller: 'DataExportController',\n                    controllerAs: 'dataExportController'\n                })\n                .state('root.milestones', {\n                    url: '/milestones',\n                    templateUrl: 'wise5/classroomMonitor/milestones/milestones.html',\n                    controller: 'MilestonesController',\n                    controllerAs: 'milestonesController'\n                })\n                .state('root.notebooks', {\n                    url: '/notebook',\n                    templateUrl: 'wise5/classroomMonitor/notebook/notebook.html',\n                    controller: 'NotebookGradingController',\n                    controllerAs: 'notebookGradingController',\n                    resolve: {\n                        notebook: function (NotebookService, ConfigService, config, project, StudentAssetService) {\n                            if (!ConfigService.isPreview()) {\n                                //StudentAssetService.retrieveAssets().then((studentAssets) => {\n                                    return NotebookService.retrieveNotebookItems().then((notebook) => {\n                                        return notebook;\n                                    });\n                                //});\n                            } else {\n                                return NotebookService.notebook;\n                            }\n                        }\n                    }\n                });\n\n            $httpProvider.interceptors.push('HttpInterceptor');\n\n            // Set up Translations\n            $translatePartialLoaderProvider.addPart('i18n');\n            $translatePartialLoaderProvider.addPart('classroomMonitor/i18n');\n            $translateProvider.useLoader('$translatePartialLoader', {\n                    urlTemplate: 'wise5/{part}/i18n_{lang}.json'\n            })\n            .fallbackLanguage(['en'])\n            .registerAvailableLanguageKeys(['el','en','es','ja','ko','pt','tr','zh_CN','zh_TW'], {\n                'en_US': 'en',\n                'en_UK': 'en'\n            })\n            .determinePreferredLanguage()\n            .useSanitizeValueStrategy('sanitizeParameters', 'escape');\n\n            $mdThemingProvider.definePalette('accent', {\n                '50': 'fde9e6',\n                '100': 'fbcbc4',\n                '200': 'f8aca1',\n                '300': 'f4897b',\n                '400': 'f2705f',\n                '500': 'f05843',\n                '600': 'da503c',\n                '700': 'c34736',\n                '800': 'aa3e2f',\n                '900': '7d2e23',\n                'A100': 'ff897d',\n                'A200': 'ff7061',\n                'A400': 'ff3829',\n                'A700': 'cc1705',\n                'contrastDefaultColor': 'light',\n                'contrastDarkColors': ['50', '100',\n                    '200', '300', 'A100'],\n                'contrastLightColors': undefined\n            });\n\n            $mdThemingProvider.theme('default')\n                .primaryPalette('blue', {\n                    'default': '800'\n                })\n                .accentPalette('accent',  {\n                    'default': '500'\n                })\n                .warnPalette('red', {\n                    'default': '800'\n                });\n\n            var lightMap = $mdThemingProvider.extendPalette('grey', {\n                'A100': 'ffffff'\n            });\n            $mdThemingProvider.definePalette('light', lightMap);\n\n            $mdThemingProvider.theme('light')\n                .primaryPalette('light', {\n                    'default': 'A100'\n                })\n                .accentPalette('blue', {\n                    'default': '900'\n                });\n\n            $mdThemingProvider.setDefaultTheme('default');\n            $mdThemingProvider.enableBrowserColor();\n\n            // moment.js default overrides\n            // TODO: add i18n support\n            moment.updateLocale('en', {\n                calendar: {\n                    lastDay : '[Yesterday at] LT',\n                    sameDay : '[Today at] LT',\n                    nextDay : '[Tomorrow at] LT',\n                    lastWeek : '[last] dddd [at] LT',\n                    nextWeek : 'dddd [at] LT',\n                    sameElse : 'll'\n                }\n            });\n        }]);\n\nexport default classroomMonitorModule;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/animation/animationService.es6 b/src/main/webapp/wise5/components/animation/animationService.es6
index a27697173a..96fe6961dc 100644
--- a/src/main/webapp/wise5/components/animation/animationService.es6
+++ b/src/main/webapp/wise5/components/animation/animationService.es6
@@ -1,37 +1,17 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class AnimationService extends NodeService {
-  constructor($filter,
-      StudentDataService,
-      UtilService) {
-    super();
-    this.$filter = $filter;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
+class AnimationService extends ComponentService {
+  constructor($filter, StudentDataService, UtilService) {
+    super($filter, StudentDataService, UtilService);
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Animation"
-   */
   getComponentTypeLabel() {
     return this.$translate('animation.componentTypeLabel');
   }
 
-  /**
-   * Create a Animation component object
-   * @returns a new Animation component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'Animation';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
-    component.isStudentAttachmentEnabled = false;
     component.widthInPixels = 600;
     component.widthInUnits = 60;
     component.heightInPixels = 200;
@@ -43,62 +23,6 @@ class AnimationService extends NodeService {
     return component;
   }
 
-  /**
-   * Copies a Animation component object
-   * @returns a copied Animation component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.starterSentence = componentToCopy.starterSentence;
-    component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;
-    return component;
-  }
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'Animation') {
-        // the other component is an Animation component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     let result = false;
 
@@ -146,69 +70,6 @@ class AnimationService extends NodeService {
     return result;
   };
 
-  /**
-   * Check if we need to display the annotation to the student
-   * @param componentContent the component content
-   * @param annotation the annotation
-   * @returns whether we need to display the annotation to the student
-   */
-  displayAnnotation(componentContent, annotation) {
-
-    var result = true;
-
-    if (componentContent != null && annotation != null) {
-
-      if (annotation.type == 'score') {
-
-      } else if (annotation.type == 'comment') {
-
-      } else if (annotation.type == 'autoScore') {
-        // this is an auto graded score annotation
-
-        if (componentContent.cRater != null && !componentContent.cRater.showScore) {
-          // we do not want to show the CRater score
-          result = false;
-        } else if (componentContent.showAutoScore === false) {
-          // do not show the auto score to the student
-          result = false;
-        }
-      } else if (annotation.type == 'autoComment') {
-        // this is an auto graded comment annotation
-
-        if (componentContent.cRater != null && !componentContent.cRater.showFeedback) {
-          // we do not want to show the CRater comment
-          result = false;
-        } else if (componentContent.showAutoFeedback === false) {
-          // do not show the auto comment to the student
-          result = false;
-        }
-      }
-
-      if (annotation.displayToStudent === false) {
-        // do not display the annotation to the studentr
-        result = false;
-      }
-    }
-
-    return result;
-  }
-
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Get the human readable student data string
-   * @param componentState the component state
-   * @return a human readable student data string
-   */
   getStudentDataString(componentState) {
 
     var studentDataString = '';
@@ -225,42 +86,13 @@ class AnimationService extends NodeService {
     return studentDataString;
   }
 
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
-
     if (componentState != null) {
-
       let studentData = componentState.studentData;
-
       if (studentData != null) {
         return true;
       }
     }
-
     return false;
   }
 }
diff --git a/src/main/webapp/wise5/components/animation/animationService.js b/src/main/webapp/wise5/components/animation/animationService.js
index e8a433579c..bdb5fb9f01 100644
--- a/src/main/webapp/wise5/components/animation/animationService.js
+++ b/src/main/webapp/wise5/components/animation/animationService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,49 +20,25 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var AnimationService = function (_NodeService) {
-  _inherits(AnimationService, _NodeService);
+var AnimationService = function (_ComponentService) {
+  _inherits(AnimationService, _ComponentService);
 
   function AnimationService($filter, StudentDataService, UtilService) {
     _classCallCheck(this, AnimationService);
 
-    var _this = _possibleConstructorReturn(this, (AnimationService.__proto__ || Object.getPrototypeOf(AnimationService)).call(this));
-
-    _this.$filter = $filter;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
-    return _this;
+    return _possibleConstructorReturn(this, (AnimationService.__proto__ || Object.getPrototypeOf(AnimationService)).call(this, $filter, StudentDataService, UtilService));
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Animation"
-   */
-
-
   _createClass(AnimationService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('animation.componentTypeLabel');
     }
-
-    /**
-     * Create a Animation component object
-     * @returns a new Animation component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(AnimationService.prototype.__proto__ || Object.getPrototypeOf(AnimationService.prototype), 'createComponent', this).call(this);
       component.type = 'Animation';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
-      component.isStudentAttachmentEnabled = false;
       component.widthInPixels = 600;
       component.widthInUnits = 60;
       component.heightInPixels = 200;
@@ -71,72 +49,8 @@ var AnimationService = function (_NodeService) {
       component.objects = [];
       return component;
     }
-
-    /**
-     * Copies a Animation component object
-     * @returns a copied Animation component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.starterSentence = componentToCopy.starterSentence;
-      component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;
-      return component;
-    }
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-
-  }, {
-    key: 'populateComponentState',
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'Animation') {
-          // the other component is an Animation component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       var result = false;
 
@@ -183,73 +97,6 @@ var AnimationService = function (_NodeService) {
 
       return result;
     }
-  }, {
-    key: 'displayAnnotation',
-
-
-    /**
-     * Check if we need to display the annotation to the student
-     * @param componentContent the component content
-     * @param annotation the annotation
-     * @returns whether we need to display the annotation to the student
-     */
-    value: function displayAnnotation(componentContent, annotation) {
-
-      var result = true;
-
-      if (componentContent != null && annotation != null) {
-
-        if (annotation.type == 'score') {} else if (annotation.type == 'comment') {} else if (annotation.type == 'autoScore') {
-          // this is an auto graded score annotation
-
-          if (componentContent.cRater != null && !componentContent.cRater.showScore) {
-            // we do not want to show the CRater score
-            result = false;
-          } else if (componentContent.showAutoScore === false) {
-            // do not show the auto score to the student
-            result = false;
-          }
-        } else if (annotation.type == 'autoComment') {
-          // this is an auto graded comment annotation
-
-          if (componentContent.cRater != null && !componentContent.cRater.showFeedback) {
-            // we do not want to show the CRater comment
-            result = false;
-          } else if (componentContent.showAutoFeedback === false) {
-            // do not show the auto comment to the student
-            result = false;
-          }
-        }
-
-        if (annotation.displayToStudent === false) {
-          // do not display the annotation to the studentr
-          result = false;
-        }
-      }
-
-      return result;
-    }
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-
-  }, {
-    key: 'componentHasWork',
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Get the human readable student data string
-     * @param componentState the component state
-     * @return a human readable student data string
-     */
-
   }, {
     key: 'getStudentDataString',
     value: function getStudentDataString(componentState) {
@@ -267,58 +114,21 @@ var AnimationService = function (_NodeService) {
 
       return studentDataString;
     }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
-
       if (componentState != null) {
-
         var studentData = componentState.studentData;
-
         if (studentData != null) {
           return true;
         }
       }
-
       return false;
     }
   }]);
 
   return AnimationService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 AnimationService.$inject = ['$filter', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/animation/animationService.js.map b/src/main/webapp/wise5/components/animation/animationService.js.map
index c483704c1a..c5d3bd75d4 100644
--- a/src/main/webapp/wise5/components/animation/animationService.js.map
+++ b/src/main/webapp/wise5/components/animation/animationService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["animationService.es6"],"names":["AnimationService","$filter","StudentDataService","UtilService","$translate","component","id","generateKey","type","prompt","showSaveButton","showSubmitButton","isStudentAttachmentEnabled","widthInPixels","widthInUnits","heightInPixels","heightInUnits","dataXOriginInPixels","dataYOriginInPixels","coordinateSystem","objects","componentToCopy","createComponent","starterSentence","componentStateFromOtherComponent","componentState","createComponentState","otherComponentType","componentType","studentData","studentDataCopy","makeCopyOfJSONObject","componentStates","componentEvents","nodeEvents","node","result","length","submitRequired","i","l","state","isSubmit","response","completionCriteria","isCompletionCriteriaSatisfied","componentContent","annotation","cRater","showScore","showAutoScore","showFeedback","showAutoFeedback","displayToStudent","studentDataString","$inject"],"mappings":";;;;;;;;AAAA;;;;;;;;;;;;IAEMA,gB;;;AACJ,4BAAYC,OAAZ,EACIC,kBADJ,EAEIC,WAFJ,EAEiB;AAAA;;AAAA;;AAEf,UAAKF,OAAL,GAAeA,OAAf;AACA,UAAKC,kBAAL,GAA0BA,kBAA1B;AACA,UAAKC,WAAL,GAAmBA,WAAnB;AACA,UAAKC,UAAL,GAAkB,MAAKH,OAAL,CAAa,WAAb,CAAlB;AALe;AAMhB;;AAED;;;;;;;;;4CAKwB;AACtB,aAAO,KAAKG,UAAL,CAAgB,8BAAhB,CAAP;AACD;;AAED;;;;;;;sCAIkB;AAChB,UAAIC,YAAY,EAAhB;AACAA,gBAAUC,EAAV,GAAe,KAAKH,WAAL,CAAiBI,WAAjB,EAAf;AACAF,gBAAUG,IAAV,GAAiB,WAAjB;AACAH,gBAAUI,MAAV,GAAmB,EAAnB;AACAJ,gBAAUK,cAAV,GAA2B,KAA3B;AACAL,gBAAUM,gBAAV,GAA6B,KAA7B;AACAN,gBAAUO,0BAAV,GAAuC,KAAvC;AACAP,gBAAUQ,aAAV,GAA0B,GAA1B;AACAR,gBAAUS,YAAV,GAAyB,EAAzB;AACAT,gBAAUU,cAAV,GAA2B,GAA3B;AACAV,gBAAUW,aAAV,GAA0B,EAA1B;AACAX,gBAAUY,mBAAV,GAAgC,CAAhC;AACAZ,gBAAUa,mBAAV,GAAgC,EAAhC;AACAb,gBAAUc,gBAAV,GAA6B,QAA7B;AACAd,gBAAUe,OAAV,GAAoB,EAApB;AACA,aAAOf,SAAP;AACD;;AAED;;;;;;;kCAIcgB,e,EAAiB;AAC7B,UAAIhB,YAAY,KAAKiB,eAAL,EAAhB;AACAjB,gBAAUI,MAAV,GAAmBY,gBAAgBZ,MAAnC;AACAJ,gBAAUK,cAAV,GAA2BW,gBAAgBX,cAA3C;AACAL,gBAAUM,gBAAV,GAA6BU,gBAAgBV,gBAA7C;AACAN,gBAAUkB,eAAV,GAA4BF,gBAAgBE,eAA5C;AACAlB,gBAAUO,0BAAV,GAAuCS,gBAAgBT,0BAAvD;AACA,aAAOP,SAAP;AACD;AACD;;;;;;;;;2CAMuBmB,gC,EAAkC;AACvD,UAAIC,iBAAiB,IAArB;;AAEA,UAAID,oCAAoC,IAAxC,EAA8C;;AAE5C;AACAC,yBAAiB,KAAKvB,kBAAL,CAAwBwB,oBAAxB,EAAjB;;AAEA;AACA,YAAIC,qBAAqBH,iCAAiCI,aAA1D;;AAEA,YAAID,uBAAuB,WAA3B,EAAwC;AACtC;;AAEA;AACA,cAAIE,cAAcL,iCAAiCK,WAAnD;;AAEA;AACA,cAAIC,kBAAkB,KAAK3B,WAAL,CAAiB4B,oBAAjB,CAAsCF,WAAtC,CAAtB;;AAEA;AACAJ,yBAAeI,WAAf,GAA6BC,eAA7B;AACD;AACF;;AAED,aAAOL,cAAP;AACD;;;;;AAED;;;;;;;;;gCASYpB,S,EAAW2B,e,EAAiBC,e,EAAiBC,U,EAAYC,I,EAAM;AACzE,UAAIC,SAAS,KAAb;;AAEA,UAAIJ,mBAAmBA,gBAAgBK,MAAvC,EAA+C;AAC7C,YAAIC,iBAAiBH,KAAKxB,gBAAL,IAA0BN,UAAUM,gBAAV,IAA8B,CAACwB,KAAKzB,cAAnF;;AAEA,YAAI4B,cAAJ,EAAoB;AAClB;AACA,eAAK,IAAIC,IAAI,CAAR,EAAWC,IAAIR,gBAAgBK,MAApC,EAA4CE,IAAIC,CAAhD,EAAmDD,GAAnD,EAAwD;AACtD,gBAAIE,QAAQT,gBAAgBO,CAAhB,CAAZ;AACA,gBAAIE,MAAMC,QAAN,IAAkBD,MAAMZ,WAA5B,EAAyC;AACvC;AACA,kBAAIY,MAAMZ,WAAN,CAAkBc,QAAtB,EAAgC;AAC9B;AACAP,yBAAS,IAAT;AACA;AACD;AACF;AACF;AACF,SAbD,MAaO;AACL;AACA,cAAII,KAAIR,gBAAgBK,MAAhB,GAAyB,CAAjC;AACA,cAAIZ,iBAAiBO,gBAAgBQ,EAAhB,CAArB;;AAEA,cAAIX,cAAcJ,eAAeI,WAAjC;;AAEA,cAAIA,eAAe,IAAnB,EAAyB;AACvB,gBAAIA,YAAYc,QAAhB,EAA0B;AACxB;AACAP,uBAAS,IAAT;AACD;AACF;AACF;AACF;;AAED,UAAI/B,UAAUuC,kBAAV,IAAgC,IAApC,EAA0C;AACxC;;;;;AAKAR,iBAAS,KAAKlC,kBAAL,CAAwB2C,6BAAxB,CAAsDxC,UAAUuC,kBAAhE,CAAT;AACD;;AAED,aAAOR,MAAP;AACD;;;;;AAED;;;;;;sCAMkBU,gB,EAAkBC,U,EAAY;;AAE9C,UAAIX,SAAS,IAAb;;AAEA,UAAIU,oBAAoB,IAApB,IAA4BC,cAAc,IAA9C,EAAoD;;AAElD,YAAIA,WAAWvC,IAAX,IAAmB,OAAvB,EAAgC,CAE/B,CAFD,MAEO,IAAIuC,WAAWvC,IAAX,IAAmB,SAAvB,EAAkC,CAExC,CAFM,MAEA,IAAIuC,WAAWvC,IAAX,IAAmB,WAAvB,EAAoC;AACzC;;AAEA,cAAIsC,iBAAiBE,MAAjB,IAA2B,IAA3B,IAAmC,CAACF,iBAAiBE,MAAjB,CAAwBC,SAAhE,EAA2E;AACzE;AACAb,qBAAS,KAAT;AACD,WAHD,MAGO,IAAIU,iBAAiBI,aAAjB,KAAmC,KAAvC,EAA8C;AACnD;AACAd,qBAAS,KAAT;AACD;AACF,SAVM,MAUA,IAAIW,WAAWvC,IAAX,IAAmB,aAAvB,EAAsC;AAC3C;;AAEA,cAAIsC,iBAAiBE,MAAjB,IAA2B,IAA3B,IAAmC,CAACF,iBAAiBE,MAAjB,CAAwBG,YAAhE,EAA8E;AAC5E;AACAf,qBAAS,KAAT;AACD,WAHD,MAGO,IAAIU,iBAAiBM,gBAAjB,KAAsC,KAA1C,EAAiD;AACtD;AACAhB,qBAAS,KAAT;AACD;AACF;;AAED,YAAIW,WAAWM,gBAAX,KAAgC,KAApC,EAA2C;AACzC;AACAjB,mBAAS,KAAT;AACD;AACF;;AAED,aAAOA,MAAP;AACD;;AAED;;;;;;;;;;qCAOiB/B,S,EAAW;AAC1B,aAAO,IAAP;AACD;;AAED;;;;;;;;yCAKqBoB,c,EAAgB;;AAEnC,UAAI6B,oBAAoB,EAAxB;;AAEA,UAAI7B,kBAAkB,IAAtB,EAA4B;AAC1B,YAAII,cAAcJ,eAAeI,WAAjC;;AAEA,YAAIA,eAAe,IAAnB,EAAyB;AACvB;AACAyB,8BAAoBzB,YAAYc,QAAhC;AACD;AACF;;AAED,aAAOW,iBAAP;AACD;;AAED;;;;;;;8CAI0B;AACxB,aAAO,IAAP;AACD;;AAED;;;;;;;gDAI4B;AAC1B,aAAO,IAAP;AACD;;AAED;;;;;;;;;;;;iDAS6B7B,c,EAAgBqB,gB,EAAkB;;AAE7D,UAAIrB,kBAAkB,IAAtB,EAA4B;;AAE1B,YAAII,cAAcJ,eAAeI,WAAjC;;AAEA,YAAIA,eAAe,IAAnB,EAAyB;AACvB,iBAAO,IAAP;AACD;AACF;;AAED,aAAO,KAAP;AACD;;;;;;AAGH7B,iBAAiBuD,OAAjB,GAA2B,CACzB,SADyB,EAEzB,oBAFyB,EAGzB,aAHyB,CAA3B;;kBAMevD,gB","file":"animationService.js","sourcesContent":["import NodeService from '../../services/nodeService';\n\nclass AnimationService extends NodeService {\n  constructor($filter,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Animation\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('animation.componentTypeLabel');\n  }\n\n  /**\n   * Create a Animation component object\n   * @returns a new Animation component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'Animation';\n    component.prompt = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.isStudentAttachmentEnabled = false;\n    component.widthInPixels = 600;\n    component.widthInUnits = 60;\n    component.heightInPixels = 200;\n    component.heightInUnits = 20;\n    component.dataXOriginInPixels = 0;\n    component.dataYOriginInPixels = 80;\n    component.coordinateSystem = 'screen';\n    component.objects = [];\n    return component;\n  }\n\n  /**\n   * Copies a Animation component object\n   * @returns a copied Animation component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.starterSentence = componentToCopy.starterSentence;\n    component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;\n    return component;\n  }\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'Animation') {\n        // the other component is an Animation component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.response) {\n              // there is a response so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.response) {\n            // there is a response so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    if (component.completionCriteria != null) {\n      /*\n       * there is a special completion criteria authored in this component\n       * so we will evaluate the completion criteria to see if the student\n       * has completed this component\n       */\n      result = this.StudentDataService.isCompletionCriteriaSatisfied(component.completionCriteria);\n    }\n\n    return result;\n  };\n\n  /**\n   * Check if we need to display the annotation to the student\n   * @param componentContent the component content\n   * @param annotation the annotation\n   * @returns whether we need to display the annotation to the student\n   */\n  displayAnnotation(componentContent, annotation) {\n\n    var result = true;\n\n    if (componentContent != null && annotation != null) {\n\n      if (annotation.type == 'score') {\n\n      } else if (annotation.type == 'comment') {\n\n      } else if (annotation.type == 'autoScore') {\n        // this is an auto graded score annotation\n\n        if (componentContent.cRater != null && !componentContent.cRater.showScore) {\n          // we do not want to show the CRater score\n          result = false;\n        } else if (componentContent.showAutoScore === false) {\n          // do not show the auto score to the student\n          result = false;\n        }\n      } else if (annotation.type == 'autoComment') {\n        // this is an auto graded comment annotation\n\n        if (componentContent.cRater != null && !componentContent.cRater.showFeedback) {\n          // we do not want to show the CRater comment\n          result = false;\n        } else if (componentContent.showAutoFeedback === false) {\n          // do not show the auto comment to the student\n          result = false;\n        }\n      }\n\n      if (annotation.displayToStudent === false) {\n        // do not display the annotation to the studentr\n        result = false;\n      }\n    }\n\n    return result;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Get the human readable student data string\n   * @param componentState the component state\n   * @return a human readable student data string\n   */\n  getStudentDataString(componentState) {\n\n    var studentDataString = '';\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        // get the response the student typed\n        studentDataString = studentData.response;\n      }\n    }\n\n    return studentDataString;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n}\n\nAnimationService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default AnimationService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["animationService.es6"],"names":["AnimationService","$filter","StudentDataService","UtilService","$translate","component","type","widthInPixels","widthInUnits","heightInPixels","heightInUnits","dataXOriginInPixels","dataYOriginInPixels","coordinateSystem","objects","componentStates","componentEvents","nodeEvents","node","result","length","submitRequired","showSubmitButton","showSaveButton","i","l","state","isSubmit","studentData","response","componentState","completionCriteria","isCompletionCriteriaSatisfied","studentDataString","componentContent","$inject"],"mappings":";;;;;;;;;;AAAA;;;;;;;;;;;;IAEMA,gB;;;AACJ,4BAAYC,OAAZ,EAAqBC,kBAArB,EAAyCC,WAAzC,EAAsD;AAAA;;AAAA,+HAC9CF,OAD8C,EACrCC,kBADqC,EACjBC,WADiB;AAErD;;;;4CAEuB;AACtB,aAAO,KAAKC,UAAL,CAAgB,8BAAhB,CAAP;AACD;;;sCAEiB;AAChB,UAAMC,+IAAN;AACAA,gBAAUC,IAAV,GAAiB,WAAjB;AACAD,gBAAUE,aAAV,GAA0B,GAA1B;AACAF,gBAAUG,YAAV,GAAyB,EAAzB;AACAH,gBAAUI,cAAV,GAA2B,GAA3B;AACAJ,gBAAUK,aAAV,GAA0B,EAA1B;AACAL,gBAAUM,mBAAV,GAAgC,CAAhC;AACAN,gBAAUO,mBAAV,GAAgC,EAAhC;AACAP,gBAAUQ,gBAAV,GAA6B,QAA7B;AACAR,gBAAUS,OAAV,GAAoB,EAApB;AACA,aAAOT,SAAP;AACD;;;gCAEWA,S,EAAWU,e,EAAiBC,e,EAAiBC,U,EAAYC,I,EAAM;AACzE,UAAIC,SAAS,KAAb;;AAEA,UAAIJ,mBAAmBA,gBAAgBK,MAAvC,EAA+C;AAC7C,YAAIC,iBAAiBH,KAAKI,gBAAL,IAA0BjB,UAAUiB,gBAAV,IAA8B,CAACJ,KAAKK,cAAnF;;AAEA,YAAIF,cAAJ,EAAoB;AAClB;AACA,eAAK,IAAIG,IAAI,CAAR,EAAWC,IAAIV,gBAAgBK,MAApC,EAA4CI,IAAIC,CAAhD,EAAmDD,GAAnD,EAAwD;AACtD,gBAAIE,QAAQX,gBAAgBS,CAAhB,CAAZ;AACA,gBAAIE,MAAMC,QAAN,IAAkBD,MAAME,WAA5B,EAAyC;AACvC;AACA,kBAAIF,MAAME,WAAN,CAAkBC,QAAtB,EAAgC;AAC9B;AACAV,yBAAS,IAAT;AACA;AACD;AACF;AACF;AACF,SAbD,MAaO;AACL;AACA,cAAIM,KAAIV,gBAAgBK,MAAhB,GAAyB,CAAjC;AACA,cAAIU,iBAAiBf,gBAAgBU,EAAhB,CAArB;;AAEA,cAAIG,cAAcE,eAAeF,WAAjC;;AAEA,cAAIA,eAAe,IAAnB,EAAyB;AACvB,gBAAIA,YAAYC,QAAhB,EAA0B;AACxB;AACAV,uBAAS,IAAT;AACD;AACF;AACF;AACF;;AAED,UAAId,UAAU0B,kBAAV,IAAgC,IAApC,EAA0C;AACxC;;;;;AAKAZ,iBAAS,KAAKjB,kBAAL,CAAwB8B,6BAAxB,CAAsD3B,UAAU0B,kBAAhE,CAAT;AACD;;AAED,aAAOZ,MAAP;AACD;;;yCAEoBW,c,EAAgB;;AAEnC,UAAIG,oBAAoB,EAAxB;;AAEA,UAAIH,kBAAkB,IAAtB,EAA4B;AAC1B,YAAIF,cAAcE,eAAeF,WAAjC;;AAEA,YAAIA,eAAe,IAAnB,EAAyB;AACvB;AACAK,8BAAoBL,YAAYC,QAAhC;AACD;AACF;;AAED,aAAOI,iBAAP;AACD;;;iDAE4BH,c,EAAgBI,gB,EAAkB;AAC7D,UAAIJ,kBAAkB,IAAtB,EAA4B;AAC1B,YAAIF,cAAcE,eAAeF,WAAjC;AACA,YAAIA,eAAe,IAAnB,EAAyB;AACvB,iBAAO,IAAP;AACD;AACF;AACD,aAAO,KAAP;AACD;;;;;;AAGH5B,iBAAiBmC,OAAjB,GAA2B,CACzB,SADyB,EAEzB,oBAFyB,EAGzB,aAHyB,CAA3B;;kBAMenC,gB","file":"animationService.js","sourcesContent":["import ComponentService from '../componentService';\n\nclass AnimationService extends ComponentService {\n  constructor($filter, StudentDataService, UtilService) {\n    super($filter, StudentDataService, UtilService);\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('animation.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'Animation';\n    component.widthInPixels = 600;\n    component.widthInUnits = 60;\n    component.heightInPixels = 200;\n    component.heightInUnits = 20;\n    component.dataXOriginInPixels = 0;\n    component.dataYOriginInPixels = 80;\n    component.coordinateSystem = 'screen';\n    component.objects = [];\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.response) {\n              // there is a response so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.response) {\n            // there is a response so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    if (component.completionCriteria != null) {\n      /*\n       * there is a special completion criteria authored in this component\n       * so we will evaluate the completion criteria to see if the student\n       * has completed this component\n       */\n      result = this.StudentDataService.isCompletionCriteriaSatisfied(component.completionCriteria);\n    }\n\n    return result;\n  };\n\n  getStudentDataString(componentState) {\n\n    var studentDataString = '';\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        // get the response the student typed\n        studentDataString = studentData.response;\n      }\n    }\n\n    return studentDataString;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n}\n\nAnimationService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default AnimationService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.es6 b/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.es6
index a60482b422..3d761d05b7 100644
--- a/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.es6
+++ b/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.es6
@@ -1,35 +1,17 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class AudioOscillatorService extends NodeService {
-  constructor($filter,
-      StudentDataService,
-      UtilService) {
-    super();
-    this.$filter = $filter;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
+class AudioOscillatorService extends ComponentService {
+  constructor($filter, StudentDataService, UtilService) {
+    super($filter, StudentDataService, UtilService);
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Audio Oscillator"
-   */
   getComponentTypeLabel() {
     return this.$translate('audioOscillator.componentTypeLabel');
   }
 
-  /**
-   * Create a AudioOscillator component object
-   * @returns a new AudioOscillator component object
-   */
   createComponent() {
-
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'AudioOscillator';
-    component.prompt = '';
     component.oscillatorTypes = [
       'sine'
     ];
@@ -38,57 +20,9 @@ class AudioOscillatorService extends NodeService {
     component.oscilloscopeHeight = 400;
     component.gridCellSize = 50;
     component.stopAfterGoodDraw = false;
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
-    component.starterSentence = null;
-    component.isStudentAttachmentEnabled = false;
-
     return component;
   }
 
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'AudioOscillator') {
-        // the other component is an OpenResponse component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     let result = false;
 
@@ -127,42 +61,6 @@ class AudioOscillatorService extends NodeService {
     return result;
   };
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
     if (componentState != null) {
       let studentData = componentState.studentData;
@@ -173,7 +71,6 @@ class AudioOscillatorService extends NodeService {
         }
       }
     }
-
     return false;
   }
 }
diff --git a/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.js b/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.js
index a98d837f02..d016c04d13 100644
--- a/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.js
+++ b/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,110 +20,35 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var AudioOscillatorService = function (_NodeService) {
-  _inherits(AudioOscillatorService, _NodeService);
+var AudioOscillatorService = function (_ComponentService) {
+  _inherits(AudioOscillatorService, _ComponentService);
 
   function AudioOscillatorService($filter, StudentDataService, UtilService) {
     _classCallCheck(this, AudioOscillatorService);
 
-    var _this = _possibleConstructorReturn(this, (AudioOscillatorService.__proto__ || Object.getPrototypeOf(AudioOscillatorService)).call(this));
-
-    _this.$filter = $filter;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
-    return _this;
+    return _possibleConstructorReturn(this, (AudioOscillatorService.__proto__ || Object.getPrototypeOf(AudioOscillatorService)).call(this, $filter, StudentDataService, UtilService));
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Audio Oscillator"
-   */
-
-
   _createClass(AudioOscillatorService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('audioOscillator.componentTypeLabel');
     }
-
-    /**
-     * Create a AudioOscillator component object
-     * @returns a new AudioOscillator component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(AudioOscillatorService.prototype.__proto__ || Object.getPrototypeOf(AudioOscillatorService.prototype), 'createComponent', this).call(this);
       component.type = 'AudioOscillator';
-      component.prompt = '';
       component.oscillatorTypes = ['sine'];
       component.startingFrequency = 440;
       component.oscilloscopeWidth = 800;
       component.oscilloscopeHeight = 400;
       component.gridCellSize = 50;
       component.stopAfterGoodDraw = false;
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
-      component.starterSentence = null;
-      component.isStudentAttachmentEnabled = false;
-
       return component;
     }
-
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-
-  }, {
-    key: 'populateComponentState',
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'AudioOscillator') {
-          // the other component is an OpenResponse component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       var result = false;
 
@@ -159,53 +86,6 @@ var AudioOscillatorService = function (_NodeService) {
 
       return result;
     }
-  }, {
-    key: 'componentHasWork',
-
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -217,13 +97,12 @@ var AudioOscillatorService = function (_NodeService) {
           }
         }
       }
-
       return false;
     }
   }]);
 
   return AudioOscillatorService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 AudioOscillatorService.$inject = ['$filter', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.js.map b/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.js.map
index fef5fcc4b1..cb36cbb41d 100644
--- a/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.js.map
+++ b/src/main/webapp/wise5/components/audioOscillator/audioOscillatorService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["audioOscillatorService.es6"],"names":["AudioOscillatorService","$filter","StudentDataService","UtilService","$translate","component","id","generateKey","type","prompt","oscillatorTypes","startingFrequency","oscilloscopeWidth","oscilloscopeHeight","gridCellSize","stopAfterGoodDraw","showSaveButton","showSubmitButton","starterSentence","isStudentAttachmentEnabled","componentStateFromOtherComponent","componentState","createComponentState","otherComponentType","componentType","studentData","studentDataCopy","makeCopyOfJSONObject","componentStates","componentEvents","nodeEvents","node","result","length","submitRequired","i","l","state","isSubmit","frequenciesPlayed","componentContent","$inject"],"mappings":";;;;;;;;AAAA;;;;;;;;;;;;IAEMA,sB;;;AACJ,kCAAYC,OAAZ,EACIC,kBADJ,EAEIC,WAFJ,EAEiB;AAAA;;AAAA;;AAEf,UAAKF,OAAL,GAAeA,OAAf;AACA,UAAKC,kBAAL,GAA0BA,kBAA1B;AACA,UAAKC,WAAL,GAAmBA,WAAnB;AACA,UAAKC,UAAL,GAAkB,MAAKH,OAAL,CAAa,WAAb,CAAlB;AALe;AAMhB;;AAED;;;;;;;;;4CAKwB;AACtB,aAAO,KAAKG,UAAL,CAAgB,oCAAhB,CAAP;AACD;;AAED;;;;;;;sCAIkB;;AAEhB,UAAIC,YAAY,EAAhB;AACAA,gBAAUC,EAAV,GAAe,KAAKH,WAAL,CAAiBI,WAAjB,EAAf;AACAF,gBAAUG,IAAV,GAAiB,iBAAjB;AACAH,gBAAUI,MAAV,GAAmB,EAAnB;AACAJ,gBAAUK,eAAV,GAA4B,CAC1B,MAD0B,CAA5B;AAGAL,gBAAUM,iBAAV,GAA8B,GAA9B;AACAN,gBAAUO,iBAAV,GAA8B,GAA9B;AACAP,gBAAUQ,kBAAV,GAA+B,GAA/B;AACAR,gBAAUS,YAAV,GAAyB,EAAzB;AACAT,gBAAUU,iBAAV,GAA8B,KAA9B;AACAV,gBAAUW,cAAV,GAA2B,KAA3B;AACAX,gBAAUY,gBAAV,GAA6B,KAA7B;AACAZ,gBAAUa,eAAV,GAA4B,IAA5B;AACAb,gBAAUc,0BAAV,GAAuC,KAAvC;;AAEA,aAAOd,SAAP;AACD;;AAED;;;;;;;;;2CAMuBe,gC,EAAkC;AACvD,UAAIC,iBAAiB,IAArB;;AAEA,UAAID,oCAAoC,IAAxC,EAA8C;;AAE5C;AACAC,yBAAiB,KAAKnB,kBAAL,CAAwBoB,oBAAxB,EAAjB;;AAEA;AACA,YAAIC,qBAAqBH,iCAAiCI,aAA1D;;AAEA,YAAID,uBAAuB,iBAA3B,EAA8C;AAC5C;;AAEA;AACA,cAAIE,cAAcL,iCAAiCK,WAAnD;;AAEA;AACA,cAAIC,kBAAkB,KAAKvB,WAAL,CAAiBwB,oBAAjB,CAAsCF,WAAtC,CAAtB;;AAEA;AACAJ,yBAAeI,WAAf,GAA6BC,eAA7B;AACD;AACF;;AAED,aAAOL,cAAP;AACD;;;;;AAED;;;;;;;;;gCASYhB,S,EAAWuB,e,EAAiBC,e,EAAiBC,U,EAAYC,I,EAAM;AACzE,UAAIC,SAAS,KAAb;;AAEA,UAAIJ,mBAAmBA,gBAAgBK,MAAvC,EAA+C;AAC7C,YAAIC,iBAAiBH,KAAKd,gBAAL,IAA0BZ,UAAUY,gBAAV,IAA8B,CAACc,KAAKf,cAAnF;;AAEA,YAAIkB,cAAJ,EAAoB;AAClB;AACA,eAAK,IAAIC,IAAI,CAAR,EAAWC,IAAIR,gBAAgBK,MAApC,EAA4CE,IAAIC,CAAhD,EAAmDD,GAAnD,EAAwD;AACtD,gBAAIE,QAAQT,gBAAgBO,CAAhB,CAAZ;AACA,gBAAIE,MAAMC,QAAN,IAAkBD,MAAMZ,WAA5B,EAAyC;AACvC;AACA,kBAAIY,MAAMZ,WAAN,CAAkBc,iBAAlB,IAAuC,IAAvC,IAA+Cd,YAAYc,iBAAZ,CAA8BN,MAA9B,GAAuC,CAA1F,EAA6F;AAC3F;AACAD,yBAAS,IAAT;AACA;AACD;AACF;AACF;AACF,SAbD,MAaO;AACL;AACA,cAAII,KAAIR,gBAAgBK,MAAhB,GAAyB,CAAjC;AACA,cAAIZ,iBAAiBO,gBAAgBQ,EAAhB,CAArB;;AAEA,cAAIX,eAAcJ,eAAeI,WAAjC;;AAEA,cAAIA,gBAAe,IAAnB,EAAyB;AACvB,gBAAIA,aAAYc,iBAAZ,IAAiC,IAAjC,IAAyCd,aAAYc,iBAAZ,CAA8BN,MAA9B,GAAuC,CAApF,EAAuF;AACrF;AACAD,uBAAS,IAAT;AACD;AACF;AACF;AACF;;AAED,aAAOA,MAAP;AACD;;;;;AAED;;;;;;;qCAOiB3B,S,EAAW;AAC1B,aAAO,IAAP;AACD;;AAED;;;;;;;8CAI0B;AACxB,aAAO,IAAP;AACD;;AAED;;;;;;;gDAI4B;AAC1B,aAAO,IAAP;AACD;;AAED;;;;;;;;;;;;iDAS6BgB,c,EAAgBmB,gB,EAAkB;AAC7D,UAAInB,kBAAkB,IAAtB,EAA4B;AAC1B,YAAII,gBAAcJ,eAAeI,WAAjC;AACA,YAAIA,iBAAe,IAAnB,EAAyB;AACvB,cAAIA,cAAYc,iBAAZ,IAAiC,IAAjC,IACFd,cAAYc,iBAAZ,CAA8BN,MAA9B,GAAuC,CADzC,EAC4C;AAC1C,mBAAO,IAAP;AACD;AACF;AACF;;AAED,aAAO,KAAP;AACD;;;;;;AAGHjC,uBAAuByC,OAAvB,GAAiC,CAC/B,SAD+B,EAE/B,oBAF+B,EAG/B,aAH+B,CAAjC;;kBAMezC,sB","file":"audioOscillatorService.js","sourcesContent":["import NodeService from '../../services/nodeService';\n\nclass AudioOscillatorService extends NodeService {\n  constructor($filter,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Audio Oscillator\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('audioOscillator.componentTypeLabel');\n  }\n\n  /**\n   * Create a AudioOscillator component object\n   * @returns a new AudioOscillator component object\n   */\n  createComponent() {\n\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'AudioOscillator';\n    component.prompt = '';\n    component.oscillatorTypes = [\n      'sine'\n    ];\n    component.startingFrequency = 440;\n    component.oscilloscopeWidth = 800;\n    component.oscilloscopeHeight = 400;\n    component.gridCellSize = 50;\n    component.stopAfterGoodDraw = false;\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.starterSentence = null;\n    component.isStudentAttachmentEnabled = false;\n\n    return component;\n  }\n\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'AudioOscillator') {\n        // the other component is an OpenResponse component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.frequenciesPlayed != null && studentData.frequenciesPlayed.length > 0) {\n              // the student has played at least one frequency so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.frequenciesPlayed != null && studentData.frequenciesPlayed.length > 0) {\n            // the student has played at least one frequency so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        if (studentData.frequenciesPlayed != null &&\n          studentData.frequenciesPlayed.length > 0) {\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n}\n\nAudioOscillatorService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default AudioOscillatorService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["audioOscillatorService.es6"],"names":["AudioOscillatorService","$filter","StudentDataService","UtilService","$translate","component","type","oscillatorTypes","startingFrequency","oscilloscopeWidth","oscilloscopeHeight","gridCellSize","stopAfterGoodDraw","componentStates","componentEvents","nodeEvents","node","result","length","submitRequired","showSubmitButton","showSaveButton","i","l","state","isSubmit","studentData","frequenciesPlayed","componentState","componentContent","$inject"],"mappings":";;;;;;;;;;AAAA;;;;;;;;;;;;IAEMA,sB;;;AACJ,kCAAYC,OAAZ,EAAqBC,kBAArB,EAAyCC,WAAzC,EAAsD;AAAA;;AAAA,2IAC9CF,OAD8C,EACrCC,kBADqC,EACjBC,WADiB;AAErD;;;;4CAEuB;AACtB,aAAO,KAAKC,UAAL,CAAgB,oCAAhB,CAAP;AACD;;;sCAEiB;AAChB,UAAMC,2JAAN;AACAA,gBAAUC,IAAV,GAAiB,iBAAjB;AACAD,gBAAUE,eAAV,GAA4B,CAC1B,MAD0B,CAA5B;AAGAF,gBAAUG,iBAAV,GAA8B,GAA9B;AACAH,gBAAUI,iBAAV,GAA8B,GAA9B;AACAJ,gBAAUK,kBAAV,GAA+B,GAA/B;AACAL,gBAAUM,YAAV,GAAyB,EAAzB;AACAN,gBAAUO,iBAAV,GAA8B,KAA9B;AACA,aAAOP,SAAP;AACD;;;gCAEWA,S,EAAWQ,e,EAAiBC,e,EAAiBC,U,EAAYC,I,EAAM;AACzE,UAAIC,SAAS,KAAb;;AAEA,UAAIJ,mBAAmBA,gBAAgBK,MAAvC,EAA+C;AAC7C,YAAIC,iBAAiBH,KAAKI,gBAAL,IAA0Bf,UAAUe,gBAAV,IAA8B,CAACJ,KAAKK,cAAnF;;AAEA,YAAIF,cAAJ,EAAoB;AAClB;AACA,eAAK,IAAIG,IAAI,CAAR,EAAWC,IAAIV,gBAAgBK,MAApC,EAA4CI,IAAIC,CAAhD,EAAmDD,GAAnD,EAAwD;AACtD,gBAAIE,QAAQX,gBAAgBS,CAAhB,CAAZ;AACA,gBAAIE,MAAMC,QAAN,IAAkBD,MAAME,WAA5B,EAAyC;AACvC;AACA,kBAAIF,MAAME,WAAN,CAAkBC,iBAAlB,IAAuC,IAAvC,IAA+CD,YAAYC,iBAAZ,CAA8BT,MAA9B,GAAuC,CAA1F,EAA6F;AAC3F;AACAD,yBAAS,IAAT;AACA;AACD;AACF;AACF;AACF,SAbD,MAaO;AACL;AACA,cAAIM,KAAIV,gBAAgBK,MAAhB,GAAyB,CAAjC;AACA,cAAIU,iBAAiBf,gBAAgBU,EAAhB,CAArB;;AAEA,cAAIG,eAAcE,eAAeF,WAAjC;;AAEA,cAAIA,gBAAe,IAAnB,EAAyB;AACvB,gBAAIA,aAAYC,iBAAZ,IAAiC,IAAjC,IAAyCD,aAAYC,iBAAZ,CAA8BT,MAA9B,GAAuC,CAApF,EAAuF;AACrF;AACAD,uBAAS,IAAT;AACD;AACF;AACF;AACF;;AAED,aAAOA,MAAP;AACD;;;iDAE4BW,c,EAAgBC,gB,EAAkB;AAC7D,UAAID,kBAAkB,IAAtB,EAA4B;AAC1B,YAAIF,gBAAcE,eAAeF,WAAjC;AACA,YAAIA,iBAAe,IAAnB,EAAyB;AACvB,cAAIA,cAAYC,iBAAZ,IAAiC,IAAjC,IACFD,cAAYC,iBAAZ,CAA8BT,MAA9B,GAAuC,CADzC,EAC4C;AAC1C,mBAAO,IAAP;AACD;AACF;AACF;AACD,aAAO,KAAP;AACD;;;;;;AAGHlB,uBAAuB8B,OAAvB,GAAiC,CAC/B,SAD+B,EAE/B,oBAF+B,EAG/B,aAH+B,CAAjC;;kBAMe9B,sB","file":"audioOscillatorService.js","sourcesContent":["import ComponentService from '../componentService';\n\nclass AudioOscillatorService extends ComponentService {\n  constructor($filter, StudentDataService, UtilService) {\n    super($filter, StudentDataService, UtilService);\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('audioOscillator.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'AudioOscillator';\n    component.oscillatorTypes = [\n      'sine'\n    ];\n    component.startingFrequency = 440;\n    component.oscilloscopeWidth = 800;\n    component.oscilloscopeHeight = 400;\n    component.gridCellSize = 50;\n    component.stopAfterGoodDraw = false;\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.frequenciesPlayed != null && studentData.frequenciesPlayed.length > 0) {\n              // the student has played at least one frequency so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.frequenciesPlayed != null && studentData.frequenciesPlayed.length > 0) {\n            // the student has played at least one frequency so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        if (studentData.frequenciesPlayed != null &&\n          studentData.frequenciesPlayed.length > 0) {\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n}\n\nAudioOscillatorService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default AudioOscillatorService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/componentService.es6 b/src/main/webapp/wise5/components/componentService.es6
new file mode 100644
index 0000000000..7ef1867fbb
--- /dev/null
+++ b/src/main/webapp/wise5/components/componentService.es6
@@ -0,0 +1,121 @@
+class ComponentService {
+  constructor($filter,
+              StudentDataService,
+              UtilService) {
+    this.$filter = $filter;
+    this.StudentDataService = StudentDataService;
+    this.UtilService = UtilService;
+    this.$translate = this.$filter('translate');
+  }
+
+  /**
+   * Get the component type label. For example "Open Response".
+   * @returns {string}
+   */
+  getComponentTypeLabel() {
+    return '';
+  }
+
+  /**
+   * Create a component object
+   * @returns {object} a component object
+   */
+  createComponent() {
+    return {
+      id: this.UtilService.generateKey(),
+      type: '',
+      prompt: '',
+      showSaveButton: false,
+      showSubmitButton: false
+    }
+  }
+
+  /**
+   * Populate a component state with the data from another component state
+   * @param {object} componentStateFromOtherComponent the component state to obtain the data from
+   * @return {object} a new component state that contains the student data from the other
+   * component state
+   */
+  populateComponentState(componentStateFromOtherComponent) {
+    const studentDataCopy = this.UtilService.makeCopyOfJSONObject(componentStateFromOtherComponent.studentData);
+    const componentState = this.StudentDataService.createComponentState();
+    componentState.studentData = studentDataCopy;
+    return componentState;
+  };
+
+  /**
+   * Check if the component was completed
+   * @param component the component object
+   * @param componentStates the component states for the specific component
+   * @param componentEvents the events for the specific component
+   * @param nodeEvents the events for the parent node of the component
+   * @param node parent node of the component
+   * @returns {boolean} whether the component was completed
+   */
+  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
+    return true;
+  }
+
+  /**
+   * Check if we need to display the annotation to the student
+   * @param componentContent the component content
+   * @param annotation the annotation
+   * @returns {boolean} whether we need to display the annotation to the student
+   */
+  displayAnnotation(componentContent, annotation) {
+    return true;
+  }
+
+  /**
+   * Whether this component generates student work
+   * @param component (optional) the component object. if the component object
+   * is not provided, we will use the default value of whether the
+   * component type usually has work.
+   * @return {boolean} whether this component generates student work
+   */
+  componentHasWork(component) {
+    return true;
+  }
+
+  /**
+   * Check if the component state has student work. Sometimes a component
+   * state may be created if the student visits a component but doesn't
+   * actually perform any work. This is where we will check if the student
+   * actually performed any work.
+   * @param componentState the component state object
+   * @param componentContent the component content
+   * @return {boolean} whether the component state has any work
+   */
+  componentStateHasStudentWork(componentState, componentContent) {
+    return false;
+  }
+
+  /**
+   * Get the human readable student data string
+   * @param componentState the component state
+   * @return {string} a human readable student data string
+   */
+  getStudentDataString(componentState) {
+    return '';
+  }
+
+  /**
+   * Whether this component uses a save button
+   * @return {boolean} whether this component uses a save button
+   */
+  componentUsesSaveButton() {
+    return true;
+  }
+
+  /**
+   * Whether this component uses a submit button
+   * @return {boolean} whether this component uses a submit button
+   */
+  componentUsesSubmitButton() {
+    return true;
+  }
+}
+
+ComponentService.$inject = [];
+
+export default ComponentService;
diff --git a/src/main/webapp/wise5/components/componentService.js b/src/main/webapp/wise5/components/componentService.js
new file mode 100644
index 0000000000..93f5d48d64
--- /dev/null
+++ b/src/main/webapp/wise5/components/componentService.js
@@ -0,0 +1,166 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var ComponentService = function () {
+  function ComponentService($filter, StudentDataService, UtilService) {
+    _classCallCheck(this, ComponentService);
+
+    this.$filter = $filter;
+    this.StudentDataService = StudentDataService;
+    this.UtilService = UtilService;
+    this.$translate = this.$filter('translate');
+  }
+
+  /**
+   * Get the component type label. For example "Open Response".
+   * @returns {string}
+   */
+
+
+  _createClass(ComponentService, [{
+    key: 'getComponentTypeLabel',
+    value: function getComponentTypeLabel() {
+      return '';
+    }
+
+    /**
+     * Create a component object
+     * @returns {object} a component object
+     */
+
+  }, {
+    key: 'createComponent',
+    value: function createComponent() {
+      return {
+        id: this.UtilService.generateKey(),
+        type: '',
+        prompt: '',
+        showSaveButton: false,
+        showSubmitButton: false
+      };
+    }
+
+    /**
+     * Populate a component state with the data from another component state
+     * @param {object} componentStateFromOtherComponent the component state to obtain the data from
+     * @return {object} a new component state that contains the student data from the other
+     * component state
+     */
+
+  }, {
+    key: 'populateComponentState',
+    value: function populateComponentState(componentStateFromOtherComponent) {
+      var studentDataCopy = this.UtilService.makeCopyOfJSONObject(componentStateFromOtherComponent.studentData);
+      var componentState = this.StudentDataService.createComponentState();
+      componentState.studentData = studentDataCopy;
+      return componentState;
+    }
+  }, {
+    key: 'isCompleted',
+
+
+    /**
+     * Check if the component was completed
+     * @param component the component object
+     * @param componentStates the component states for the specific component
+     * @param componentEvents the events for the specific component
+     * @param nodeEvents the events for the parent node of the component
+     * @param node parent node of the component
+     * @returns {boolean} whether the component was completed
+     */
+    value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
+      return true;
+    }
+
+    /**
+     * Check if we need to display the annotation to the student
+     * @param componentContent the component content
+     * @param annotation the annotation
+     * @returns {boolean} whether we need to display the annotation to the student
+     */
+
+  }, {
+    key: 'displayAnnotation',
+    value: function displayAnnotation(componentContent, annotation) {
+      return true;
+    }
+
+    /**
+     * Whether this component generates student work
+     * @param component (optional) the component object. if the component object
+     * is not provided, we will use the default value of whether the
+     * component type usually has work.
+     * @return {boolean} whether this component generates student work
+     */
+
+  }, {
+    key: 'componentHasWork',
+    value: function componentHasWork(component) {
+      return true;
+    }
+
+    /**
+     * Check if the component state has student work. Sometimes a component
+     * state may be created if the student visits a component but doesn't
+     * actually perform any work. This is where we will check if the student
+     * actually performed any work.
+     * @param componentState the component state object
+     * @param componentContent the component content
+     * @return {boolean} whether the component state has any work
+     */
+
+  }, {
+    key: 'componentStateHasStudentWork',
+    value: function componentStateHasStudentWork(componentState, componentContent) {
+      return false;
+    }
+
+    /**
+     * Get the human readable student data string
+     * @param componentState the component state
+     * @return {string} a human readable student data string
+     */
+
+  }, {
+    key: 'getStudentDataString',
+    value: function getStudentDataString(componentState) {
+      return '';
+    }
+
+    /**
+     * Whether this component uses a save button
+     * @return {boolean} whether this component uses a save button
+     */
+
+  }, {
+    key: 'componentUsesSaveButton',
+    value: function componentUsesSaveButton() {
+      return true;
+    }
+
+    /**
+     * Whether this component uses a submit button
+     * @return {boolean} whether this component uses a submit button
+     */
+
+  }, {
+    key: 'componentUsesSubmitButton',
+    value: function componentUsesSubmitButton() {
+      return true;
+    }
+  }]);
+
+  return ComponentService;
+}();
+
+ComponentService.$inject = [];
+
+exports.default = ComponentService;
+//# sourceMappingURL=componentService.js.map
diff --git a/src/main/webapp/wise5/components/componentService.js.map b/src/main/webapp/wise5/components/componentService.js.map
new file mode 100644
index 0000000000..2c117a730f
--- /dev/null
+++ b/src/main/webapp/wise5/components/componentService.js.map
@@ -0,0 +1 @@
+{"version":3,"sources":["componentService.es6"],"names":["ComponentService","$filter","StudentDataService","UtilService","$translate","id","generateKey","type","prompt","showSaveButton","showSubmitButton","componentStateFromOtherComponent","studentDataCopy","makeCopyOfJSONObject","studentData","componentState","createComponentState","component","componentStates","componentEvents","nodeEvents","node","componentContent","annotation","$inject"],"mappings":";;;;;;;;;;IAAMA,gB;AACJ,4BAAYC,OAAZ,EACYC,kBADZ,EAEYC,WAFZ,EAEyB;AAAA;;AACvB,SAAKF,OAAL,GAAeA,OAAf;AACA,SAAKC,kBAAL,GAA0BA,kBAA1B;AACA,SAAKC,WAAL,GAAmBA,WAAnB;AACA,SAAKC,UAAL,GAAkB,KAAKH,OAAL,CAAa,WAAb,CAAlB;AACD;;AAED;;;;;;;;4CAIwB;AACtB,aAAO,EAAP;AACD;;AAED;;;;;;;sCAIkB;AAChB,aAAO;AACLI,YAAI,KAAKF,WAAL,CAAiBG,WAAjB,EADC;AAELC,cAAM,EAFD;AAGLC,gBAAQ,EAHH;AAILC,wBAAgB,KAJX;AAKLC,0BAAkB;AALb,OAAP;AAOD;;AAED;;;;;;;;;2CAMuBC,gC,EAAkC;AACvD,UAAMC,kBAAkB,KAAKT,WAAL,CAAiBU,oBAAjB,CAAsCF,iCAAiCG,WAAvE,CAAxB;AACA,UAAMC,iBAAiB,KAAKb,kBAAL,CAAwBc,oBAAxB,EAAvB;AACAD,qBAAeD,WAAf,GAA6BF,eAA7B;AACA,aAAOG,cAAP;AACD;;;;;AAED;;;;;;;;;gCASYE,S,EAAWC,e,EAAiBC,e,EAAiBC,U,EAAYC,I,EAAM;AACzE,aAAO,IAAP;AACD;;AAED;;;;;;;;;sCAMkBC,gB,EAAkBC,U,EAAY;AAC9C,aAAO,IAAP;AACD;;AAED;;;;;;;;;;qCAOiBN,S,EAAW;AAC1B,aAAO,IAAP;AACD;;AAED;;;;;;;;;;;;iDAS6BF,c,EAAgBO,gB,EAAkB;AAC7D,aAAO,KAAP;AACD;;AAED;;;;;;;;yCAKqBP,c,EAAgB;AACnC,aAAO,EAAP;AACD;;AAED;;;;;;;8CAI0B;AACxB,aAAO,IAAP;AACD;;AAED;;;;;;;gDAI4B;AAC1B,aAAO,IAAP;AACD;;;;;;AAGHf,iBAAiBwB,OAAjB,GAA2B,EAA3B;;kBAEexB,gB","file":"componentService.js","sourcesContent":["class ComponentService {\n  constructor($filter,\n              StudentDataService,\n              UtilService) {\n    this.$filter = $filter;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label. For example \"Open Response\".\n   * @returns {string}\n   */\n  getComponentTypeLabel() {\n    return '';\n  }\n\n  /**\n   * Create a component object\n   * @returns {object} a component object\n   */\n  createComponent() {\n    return {\n      id: this.UtilService.generateKey(),\n      type: '',\n      prompt: '',\n      showSaveButton: false,\n      showSubmitButton: false\n    }\n  }\n\n  /**\n   * Populate a component state with the data from another component state\n   * @param {object} componentStateFromOtherComponent the component state to obtain the data from\n   * @return {object} a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    const studentDataCopy = this.UtilService.makeCopyOfJSONObject(componentStateFromOtherComponent.studentData);\n    const componentState = this.StudentDataService.createComponentState();\n    componentState.studentData = studentDataCopy;\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns {boolean} whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    return true;\n  }\n\n  /**\n   * Check if we need to display the annotation to the student\n   * @param componentContent the component content\n   * @param annotation the annotation\n   * @returns {boolean} whether we need to display the annotation to the student\n   */\n  displayAnnotation(componentContent, annotation) {\n    return true;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return {boolean} whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return {boolean} whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n    return false;\n  }\n\n  /**\n   * Get the human readable student data string\n   * @param componentState the component state\n   * @return {string} a human readable student data string\n   */\n  getStudentDataString(componentState) {\n    return '';\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return {boolean} whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return {boolean} whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n}\n\nComponentService.$inject = [];\n\nexport default ComponentService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/conceptMap/conceptMapController.es6 b/src/main/webapp/wise5/components/conceptMap/conceptMapController.es6
index 75c1d98179..7f8beaae75 100644
--- a/src/main/webapp/wise5/components/conceptMap/conceptMapController.es6
+++ b/src/main/webapp/wise5/components/conceptMap/conceptMapController.es6
@@ -746,18 +746,22 @@ class ConceptMapController {
         }
       }
     } else {
-      /*
-       * inject the asset path so that the file name is changed to
-       * a relative path
-       * e.g.
-       * 'Sun.png'
-       * will be changed to
-       * '/wise/curriculum/108/assets/Sun.png'
-       */
-      componentState = this.ProjectService.injectAssetPaths(componentState);
+      if (componentState == null) {
+        this.populateStarterConceptMap();
+      } else {
+        /*
+         * inject the asset path so that the file name is changed to
+         * a relative path
+         * e.g.
+         * 'Sun.png'
+         * will be changed to
+         * '/wise/curriculum/108/assets/Sun.png'
+         */
+        componentState = this.ProjectService.injectAssetPaths(componentState);
 
-      // populate the student work into this component
-      this.setStudentWork(componentState);
+        // populate the student work into this component
+        this.setStudentWork(componentState);
+      }
     }
 
     // check if the student has used up all of their submits
@@ -2578,9 +2582,6 @@ class ConceptMapController {
       link.setOriginalId(originalId);
     }
 
-    // hide the link type chooser
-    this.hideLinkTypeChooser();
-
     // make the link not highlighted
     this.clearHighlightedElement();
 
@@ -4397,6 +4398,12 @@ class ConceptMapController {
     }
   }
 
+  populateStarterConceptMap() {
+    if (this.componentContent.starterConceptMap != null) {
+      this.populateConceptMapData(this.componentContent.starterConceptMap);
+    }
+  }
+
   /**
    * Remove all the links and nodes
    */
diff --git a/src/main/webapp/wise5/components/conceptMap/conceptMapController.js b/src/main/webapp/wise5/components/conceptMap/conceptMapController.js
index bf4c0286d3..0fea196e44 100644
--- a/src/main/webapp/wise5/components/conceptMap/conceptMapController.js
+++ b/src/main/webapp/wise5/components/conceptMap/conceptMapController.js
@@ -712,18 +712,22 @@ var ConceptMapController = function () {
           }
         }
       } else {
-        /*
-         * inject the asset path so that the file name is changed to
-         * a relative path
-         * e.g.
-         * 'Sun.png'
-         * will be changed to
-         * '/wise/curriculum/108/assets/Sun.png'
-         */
-        componentState = this.ProjectService.injectAssetPaths(componentState);
+        if (componentState == null) {
+          this.populateStarterConceptMap();
+        } else {
+          /*
+           * inject the asset path so that the file name is changed to
+           * a relative path
+           * e.g.
+           * 'Sun.png'
+           * will be changed to
+           * '/wise/curriculum/108/assets/Sun.png'
+           */
+          componentState = this.ProjectService.injectAssetPaths(componentState);
 
-        // populate the student work into this component
-        this.setStudentWork(componentState);
+          // populate the student work into this component
+          this.setStudentWork(componentState);
+        }
       }
 
       // check if the student has used up all of their submits
@@ -2704,9 +2708,6 @@ var ConceptMapController = function () {
         link.setOriginalId(originalId);
       }
 
-      // hide the link type chooser
-      this.hideLinkTypeChooser();
-
       // make the link not highlighted
       this.clearHighlightedElement();
 
@@ -4691,6 +4692,13 @@ var ConceptMapController = function () {
         this.authoringViewComponentChanged();
       }
     }
+  }, {
+    key: 'populateStarterConceptMap',
+    value: function populateStarterConceptMap() {
+      if (this.componentContent.starterConceptMap != null) {
+        this.populateConceptMapData(this.componentContent.starterConceptMap);
+      }
+    }
 
     /**
      * Remove all the links and nodes
diff --git a/src/main/webapp/wise5/components/conceptMap/conceptMapController.js.map b/src/main/webapp/wise5/components/conceptMap/conceptMapController.js.map
index b6b340e84b..cc5fa71232 100644
--- a/src/main/webapp/wise5/components/conceptMap/conceptMapController.js.map
+++ b/src/main/webapp/wise5/components/conceptMap/conceptMapController.js.map
@@ -1,5 +1 @@
-<<<<<<< HEAD
-{"version":3,"sources":["conceptMapController.es6"],"names":["ConceptMapController","$anchorScroll","$filter","$injector","$location","$mdDialog","$q","$rootScope","$scope","$timeout","AnnotationService","ConceptMapService","ConfigService","CRaterService","NodeService","NotebookService","ProjectService","StudentAssetService","StudentDataService","UtilService","idToOrder","$translate","nodeId","componentId","componentContent","authoringComponentContent","studentResponse","attachments","isDisabled","isDirty","isSubmitDirty","saveMessage","text","time","isShowPreviousWork","isSubmit","isRichTextEnabled","isStudentAttachmentEnabled","isPromptVisible","isSaveButtonVisible","isSubmitButtonVisible","isSubmitButtonDisabled","isSnipButtonVisible","showAdvancedAuthoring","showJSONAuthoring","latestAnnotations","messageDialog","width","height","availableNodes","availableLinks","nodes","links","displayLinkTypeChooser","displayLinkTypeChooserModalOverlay","selectedLinkType","initializedDisplayLinkTypeChooserModalOverlay","modalWidth","modalHeight","selectedNode","tempOffsetX","tempOffsetY","themePath","getThemePath","connectedComponentUpdateOnOptions","value","allowedConnectedComponentTypes","type","originalComponentContent","mode","workgroupId","teacherWorkgroupId","shouldOptions","label","autoFeedbackString","submitCounter","id","setBackgroundImage","background","stretchBackground","svgId","conceptMapContainerId","selectNodeBarId","feedbackContainerId","showSaveButton","showSubmitButton","getLatestComponentAnnotations","componentState","idInfo","summernoteRubricId","summernoteRubricHTML","rubric","insertAssetString","InsertAssetButton","createInsertAssetButton","summernoteRubricOptions","toolbar","disableDragAndDrop","buttons","insertAssetButton","updateAdvancedAuthoringView","$watch","bind","newValue","oldValue","injectAssetPaths","document","getElementById","setupSVG","angular","initializeSVG","conceptMapController","getComponentState","deferred","defer","getState","action","createComponentState","then","resolve","promise","$on","event","args","submitTriggeredBy","submit","studentWork","$emit","isAutoSave","clientSaveTime","setSaveMessage","lockIfNecessary","annotation","annotationNodeId","annotationComponentId","assetItem","fileName","assetsDirectoryPath","getProjectAssetsDirectoryPath","fullAssetPath","summernoteId","target","authoringViewComponentChanged","indexOf","node","authoringViewGetNodeById","isImage","$","summernote","isVideo","videoElement","createElement","controls","innerHTML","hide","hasShowWorkConnectedComponent","handleConnectedComponents","componentStateHasStudentWork","setStudentWork","hasConnectedComponent","importPreviousWorkNodeId","importPreviousWorkComponentId","importWorkNodeId","importWorkComponentId","importWork","starterConceptMap","conceptMapData","populateConceptMapData","maxSubmitCount","score","data","maxAutoScore","comment","enableNodeDragging","calculateDisabled","$parent","nodeController","registerComponentController","$broadcast","studentData","processLatestSubmit","n","length","instanceId","originalId","filePath","x","y","conceptMapNode","newConceptMapNode","draw","addNode","setNodeMouseEvents","l","link","sourceNodeId","sourceNodeInstanceId","destinationNodeId","destinationNodeInstanceId","color","curvature","startCurveUp","endCurveUp","sourceNode","destinationNode","getNodeById","conceptMapLink","newConceptMapLink","addLink","setLinkMouseEvents","backgroundPath","moveLinkTextToFront","moveNodesToFront","refreshLinkLabels","getLabel","setLabel","latestState","getLatestComponentStateByNodeIdAndComponentId","performSubmit","numberOfSubmitsLeft","message","alert","confirm","customRuleEvaluator","getConceptMapData","thisConceptMapService","thisResult","any","arguments","all","setResult","result","eval","autoFeedbackResult","resultString","showAutoScore","maxScore","showAutoFeedback","feedback","show","clickOutsideToClose","title","htmlContent","ariaLabel","ok","isLockAfterSubmit","getComponentId","createNewComponentState","response","getStudentResponse","runId","getRunId","periodId","getPeriodId","toWorkgroupId","getWorkgroupId","annotations","parseFloat","autoGrader","scoreAnnotation","createAutoScoreAnnotation","push","commentAnnotation","createAutoCommentAnnotation","componentType","createComponentStateAdditionalProcessing","nodeJSON","toJSONObject","linkJSON","substring","lastIndexOf","lockAfterSubmit","componentStates","getComponentStatesByNodeIdAndComponentId","isSubmitted","isWorkSubmitted","attachment","splice","studentDataChanged","studentAsset","copyAssetForReference","copiedAsset","studentAssetId","iconURL","prompt","showPreviousWorkPrompt","numRows","numColumns","importWorkComponentState","populatedComponentState","populateComponentState","nodeAuthoringController","authoringViewNodeChanged","editedComponentContent","fromJson","authoringComponentContentJSONString","replaceComponent","e","showSaveErrorAdvancedAuthoring","showPreviousWork","showPreviousWorkNodeId","showPre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strict';\n\nimport 'svg.js';\nimport 'svg.draggable.js';\n\nclass ConceptMapController {\n\n  constructor($anchorScroll,\n      $filter,\n      $injector,\n      $location,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      $timeout,\n      AnnotationService,\n      ConceptMapService,\n      ConfigService,\n      CRaterService,\n      NodeService,\n      NotebookService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$location = $location;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$timeout = $timeout;\n    this.AnnotationService = AnnotationService;\n    this.ConceptMapService = ConceptMapService;\n    this.ConfigService = ConfigService;\n    this.CRaterService = CRaterService;\n    this.NodeService = NodeService;\n    this.NotebookService = NotebookService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.idToOrder = this.ProjectService.idToOrder;\n\n    this.$translate = this.$filter('translate');\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // holds the text that the student has typed\n    this.studentResponse = '';\n\n    // holds student attachments like assets\n    this.attachments = [];\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether the student work has changed since last submit\n    this.isSubmitDirty = false;\n\n    // message to show next to save/submit buttons\n    this.saveMessage = {\n      text: '',\n      time: ''\n    };\n\n    // whether this component is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // whether rich text editing is enabled\n    this.isRichTextEnabled = false;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // whether the prompt is shown or not\n    this.isPromptVisible = true;\n\n    // whether the save button is shown or not\n    this.isSaveButtonVisible = false;\n\n    // whether the submit button is shown or not\n    this.isSubmitButtonVisible = false;\n\n    // whether the submit button is disabled\n    this.isSubmitButtonDisabled = false;\n\n    // whether the snip table button is shown or not\n    this.isSnipButtonVisible = true;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // the latest annotations\n    this.latestAnnotations = null;\n\n    // used to hold a message dialog if we need to use one\n    this.messageDialog = null;\n\n    // default width and height for the svg\n    this.width = 800;\n    this.height = 600;\n\n    // the available nodes the students can choose\n    this.availableNodes = [];\n\n    // the available links the students can choose\n    this.availableLinks = [];\n\n    // the node instances the students create\n    this.nodes = [];\n\n    // the link instances the students create\n    this.links = [];\n\n    // flag to display the link type chooser\n    this.displayLinkTypeChooser = false;\n\n    // flag to display the modal overlay for the link type chooser\n    this.displayLinkTypeChooserModalOverlay = false;\n\n    // the selected link type\n    this.selectedLinkType = null;\n\n    // flag for whether we have initialized the link type modal overlay\n    this.initializedDisplayLinkTypeChooserModalOverlay = false;\n\n    // default values for the modal width and height\n    this.modalWidth = 800;\n    this.modalHeight = 600;\n\n    /*\n     * used to remember the node the student has started dragging to create\n     * so that we know what node to create once they let go off the mouse\n     * on the svg element\n     */\n    this.selectedNode = null;\n\n    /*\n     * used to remember the offset of the mouse relative to the upper left\n     * of the node image the student started dragging to create a new node\n     * instance\n     */\n    this.tempOffsetX = 0;\n    this.tempOffsetY = 0;\n\n    let themePath = this.ProjectService.getThemePath();\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      { type: 'ConceptMap' },\n      { type: 'Draw' },\n      { type: 'Embedded' },\n      { type: 'Graph' },\n      { type: 'Label' },\n      { type: 'Table' }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    // the options for authoring the should or should not value in rules\n    this.shouldOptions = [\n      {\n        value: false, label: this.$translate('conceptMap.should')\n      },\n      {\n        value: true, label: this.$translate('conceptMap.shouldNot')\n      }\n    ];\n\n    // the auto feedback string\n    this.autoFeedbackString = '';\n\n    // counter to keep track of the number of submits\n    this.submitCounter = 0;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n      this.setBackgroundImage(this.componentContent.background,\n                  this.componentContent.stretchBackground);\n\n      // set the id of the svg and other display elements\n      this.svgId = 'svg_' + this.$scope.nodeId + '_' + this.componentId;\n      this.conceptMapContainerId = 'conceptMapContainer_' + this.$scope.nodeId + '_' + this.componentId;\n      this.selectNodeBarId = 'selectNodeBar_' + this.$scope.nodeId + '_' + this.componentId;\n      this.feedbackContainerId = 'feedbackContainer_' + this.$scope.nodeId + '_' + this.componentId;\n\n      if (this.componentContent.width != null) {\n        this.width = this.componentContent.width;\n      }\n\n      if (this.componentContent.height != null) {\n        this.height = this.componentContent.height;\n      }\n\n      if (this.mode === 'student') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.availableNodes = this.componentContent.nodes;\n        this.availableLinks = this.componentContent.links;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n      } else if (this.mode === 'grading' || this.mode === 'gradingRevision') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n\n        let componentState = this.$scope.componentState;\n\n        if (componentState) {\n          // set ids for the svg and other display elements using the componentStateId (so we have unique ids when showing revisions)\n          /*\n           * the student has work for this component so we will use\n           * the node id, component id, and workgroup id, and\n           * componentStateId for the svg id\n           */\n          let idInfo = this.nodeId + '_' + this.componentId + '_' + this.workgroupId + '_' + componentState.id;\n          if (this.mode === 'gradingRevision') {\n            idInfo = '_gradingRevision_' + idInfo\n            this.svgId = 'svg_' + idInfo;\n            this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n            this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n            this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n          } else {\n            this.svgId = 'svg_' + idInfo;\n            this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n            this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n            this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n          }\n        } else {\n          /*\n           * the student does not have any work for this component so\n           * we will use the node id, component id, and workgroup id\n           * for the svg id\n           */\n          let idInfo = this.nodeId + '_' + this.componentId + '_' + this.workgroupId;\n          this.svgId = 'svg_' + idInfo;\n          this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n          this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n          this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n\n        }\n      } else if (this.mode === 'onlyShowWork') {\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isSnipButtonVisible = false;\n        this.isDisabled = true;\n\n        var componentState = this.$scope.componentState;\n\n        if (componentState == null) {\n          /*\n           * the student does not have any work for this component so\n           * we will use the node id, component id, and workgroup id\n           * for the svg id\n           */\n          this.svgId = 'svgOnlyShowWork_' + this.nodeId + '_' + this.componentId + '_' + this.workgroupId;\n        } else {\n          /*\n           * the student has work for this component so we will use\n           * the node id, component id, and component state id\n           * for the svg id\n           */\n          this.svgId = 'svgOnlyShowWork_' + this.nodeId + '_' + this.componentId + '_' + componentState.id;\n        }\n      } else if (this.mode === 'showPreviousWork') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isSnipButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'authoring') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.availableNodes = this.componentContent.nodes;\n        this.availableLinks = this.componentContent.links;\n\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n          this.isSaveButtonVisible = this.componentContent.showSaveButton;\n          this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n          this.availableNodes = this.componentContent.nodes;\n          this.availableLinks = this.componentContent.links;\n          this.width = this.componentContent.width;\n          this.height = this.componentContent.height;\n          this.setBackgroundImage(this.componentContent.background,\n                      this.componentContent.stretchBackground);\n\n          /*\n           * make sure the SVG element can be accessed. we need to\n           * perform this check because this watch is getting fired\n           * before angular sets the svgId on the svg element. if\n           * setupSVG() is called before the svgId is set on the svg\n           * element, we will get an error.\n           */\n          if (document.getElementById(this.svgId) != null) {\n            this.setupSVG();\n          }\n        }.bind(this), true);\n      }\n\n      /*\n       * Call the initializeSVG() after a timeout so that angular has a\n       * chance to set the svg element id before we start using it. If we\n       * don't wait for the timeout, the svg id won't be set when we try\n       * to start referencing the svg element.\n       */\n      this.$timeout(angular.bind(this, this.initializeSVG));\n    }\n\n    /**\n     * Returns true iff there is student work that hasn't been saved yet\n     */\n    this.$scope.isDirty = function() {\n      return this.$scope.conceptMapController.isDirty;\n    }.bind(this);\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @param isSubmit boolean whether the request is coming from a submit\n     * action (optional; default is false)\n     * @return a promise of a component state containing the student data\n     */\n    this.$scope.getComponentState = function(isSubmit) {\n      var deferred = this.$q.defer();\n      let getState = false;\n      let action = 'change';\n\n      if (isSubmit) {\n        if (this.$scope.conceptMapController.isSubmitDirty) {\n          getState = true;\n          action = 'submit';\n        }\n      } else {\n        if (this.$scope.conceptMapController.isDirty) {\n          getState = true;\n          action = 'save';\n        }\n      }\n\n      if (getState) {\n        // create a component state populated with the student data\n        this.$scope.conceptMapController.createComponentState(action).then((componentState) => {\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', function(event, args) {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n\n        // trigger the submit\n        var submitTriggeredBy = 'nodeSubmitButton';\n        this.submit(submitTriggeredBy);\n      }\n    }.bind(this));\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', angular.bind(this, function(event, args) {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // set isDirty to false because the component state was just saved and notify node\n        this.isDirty = false;\n        this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: false});\n\n        let isAutoSave = componentState.isAutoSave;\n        let isSubmit = componentState.isSubmit;\n        let clientSaveTime = componentState.clientSaveTime;\n\n        // set save message\n        if (isSubmit) {\n          this.setSaveMessage(this.$translate('SUBMITTED'), clientSaveTime);\n\n          this.lockIfNecessary();\n\n          // set isSubmitDirty to false because the component state was just submitted and notify node\n          this.isSubmitDirty = false;\n          this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        } else if (isAutoSave) {\n          this.setSaveMessage(this.$translate('AUTO_SAVED'), clientSaveTime);\n        } else {\n          this.setSaveMessage(this.$translate('SAVED'), clientSaveTime);\n        }\n      }\n    }));\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', function(event, args) {\n\n    }.bind(this));\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'background') {\n                // the target is the background image\n\n                // set the background file name\n                this.authoringComponentContent.background = fileName;\n\n                // the authoring component content has changed so we will save the project\n                this.authoringViewComponentChanged();\n              } else if (args.target != null && args.target.indexOf('node') == 0) {\n                // the target is a node image\n\n                // get the concept map node\n                var node = this.authoringViewGetNodeById(args.target);\n\n                if (node != null) {\n                  // set the file name of the node\n                  node.fileName = fileName;\n                }\n\n                // the authoring component content has changed so we will save the project\n                this.authoringViewComponentChanged();\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n  }\n\n  /**\n   * Initialize the SVG\n   */\n  initializeSVG() {\n\n    // setup the svg\n    this.setupSVG();\n\n    var componentState = null;\n\n    // set whether rich text is enabled\n    this.isRichTextEnabled = this.componentContent.isRichTextEnabled;\n\n    // set whether studentAttachment is enabled\n    this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n    // get the component state from the scope\n    componentState = this.$scope.componentState;\n\n    if (this.mode == 'student') {\n      if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {\n        // we will show work from another component\n        this.handleConnectedComponents();\n      }  else if (this.ConceptMapService.componentStateHasStudentWork(componentState, this.componentContent)) {\n        /*\n         * the student has work so we will populate the work into this\n         * component\n         */\n\n        /*\n         * inject the asset path so that the file name is changed to\n         * a relative path\n         * e.g.\n         * \"Sun.png\"\n         * will be changed to\n         * \"/wise/curriculum/108/assets/Sun.png\"\n         */\n        componentState = this.ProjectService.injectAssetPaths(componentState);\n\n        this.setStudentWork(componentState);\n      } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (componentState == null) {\n        /*\n         * only import work if the student does not already have\n         * work for this component\n         */\n\n        // check if we need to import work\n        var importPreviousWorkNodeId = this.componentContent.importPreviousWorkNodeId;\n        var importPreviousWorkComponentId = this.componentContent.importPreviousWorkComponentId;\n\n        if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n          /*\n           * check if the node id is in the field that we used to store\n           * the import previous work node id in\n           */\n          importPreviousWorkNodeId = this.componentContent.importWorkNodeId;\n        }\n\n        if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n          /*\n           * check if the component id is in the field that we used to store\n           * the import previous work component id in\n           */\n          importPreviousWorkComponentId = this.componentContent.importWorkComponentId;\n        }\n\n        if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n          // import the work from the other component\n          this.importWork();\n        } else if (this.componentContent.starterConceptMap != null) {\n          /*\n           * the student has not done any work and there is a starter\n           * concept map so we will populate the concept map with\n           * the starter\n           */\n\n          // get the starter concept map\n          var conceptMapData = this.componentContent.starterConceptMap;\n\n          // populate the concept map data into the component\n          this.populateConceptMapData(conceptMapData);\n        }\n      }\n    } else {\n      /*\n       * inject the asset path so that the file name is changed to\n       * a relative path\n       * e.g.\n       * 'Sun.png'\n       * will be changed to\n       * '/wise/curriculum/108/assets/Sun.png'\n       */\n      componentState = this.ProjectService.injectAssetPaths(componentState);\n\n      // populate the student work into this component\n      this.setStudentWork(componentState);\n    }\n\n    // check if the student has used up all of their submits\n    if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n      /*\n       * the student has used up all of their chances to submit so we\n       * will disable the submit button\n       */\n      this.isSubmitButtonDisabled = true;\n    }\n\n    // populate the previous feedback\n    if (this.latestAnnotations != null) {\n\n      var autoFeedbackString = '';\n\n      // obtain the previous score annotation if any\n      if (this.latestAnnotations.score != null) {\n\n        // get the annotation data\n        var data = this.latestAnnotations.score.data;\n\n        if (data != null) {\n\n          // get the score and max auto score\n          var score = data.value;\n          var maxAutoScore = data.maxAutoScore;\n\n          autoFeedbackString += this.$translate('SCORE') + ': ' + score;\n\n          if (maxAutoScore != null && maxAutoScore != '') {\n            // show the max score as the denominator\n            autoFeedbackString += '/' + maxAutoScore;\n          }\n        }\n      }\n\n      // obtain the previous comment annotation if any\n      if (this.latestAnnotations.comment != null) {\n\n        // get the annotation data\n        var data = this.latestAnnotations.comment.data;\n\n        if (data != null) {\n          if (autoFeedbackString != '') {\n            // add a new line if the result string is not empty\n            autoFeedbackString += '<br/>';\n          }\n\n          // get the comment\n          var comment = data.value;\n          autoFeedbackString += this.$translate('FEEDBACK') + ': ' + comment;\n        }\n      }\n\n      /*\n       * set the previous auto feedback into the field that is used\n       * to display the auto feedback to the student when they click\n       * on the show feedback button\n       */\n      this.autoFeedbackString = autoFeedbackString;\n    }\n\n    // make the nodes draggable\n    this.enableNodeDragging();\n\n    // check if we need to lock this component\n    this.calculateDisabled();\n\n\n    if (this.$scope.$parent.nodeController != null) {\n      // register this component with the parent node\n      this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n    }\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        var conceptMapData = studentData.conceptMapData;\n\n        var submitCounter = studentData.submitCounter;\n\n        if (submitCounter != null) {\n          // populate the submit counter\n          this.submitCounter = submitCounter;\n        }\n\n        if (conceptMapData != null) {\n\n          // populate the concept map data into the component\n          this.populateConceptMapData(conceptMapData);\n        }\n\n        var attachments = studentData.attachments;\n\n        if (attachments != null) {\n          this.attachments = attachments;\n        }\n\n        this.processLatestSubmit();\n      }\n    }\n  };\n\n  /**\n   * Populate the concept map data into the component\n   * @param conceptMapData the concept map data which contains an array\n   * of nodes and an array of links\n   */\n  populateConceptMapData(conceptMapData) {\n\n    if (conceptMapData != null) {\n\n      // clear the existing nodes in the student view\n      this.nodes = [];\n\n      var nodes = conceptMapData.nodes;\n\n      if (nodes != null) {\n\n        // loop through all the nodes\n        for (var n = 0; n < nodes.length; n++) {\n          var node = nodes[n];\n\n          var instanceId = node.instanceId;\n          var originalId = node.originalId;\n          var filePath = node.fileName;\n          var label = node.label;\n          var x = node.x;\n          var y = node.y;\n          var width = node.width;\n          var height = node.height\n\n          // create a ConceptMapNode\n          var conceptMapNode = this.ConceptMapService.newConceptMapNode(this.draw, instanceId, originalId, filePath, label, x, y, width, height);\n\n          // add the node to our array of nodes\n          this.addNode(conceptMapNode);\n\n          // set the mouse events on the node\n          this.setNodeMouseEvents(conceptMapNode);\n        }\n      }\n\n      // clear the existing links in the student view\n      this.links = [];\n\n      var links = conceptMapData.links;\n\n      if (links != null) {\n\n        // loop through all the links\n        for (var l = 0; l < links.length; l++) {\n          var link = links[l];\n\n          var instanceId = link.instanceId;\n          var originalId = link.originalId;\n          var sourceNodeId = link.sourceNodeInstanceId;\n          var destinationNodeId = link.destinationNodeInstanceId;\n          var label = link.label;\n          var color = link.color;\n          var curvature = link.curvature;\n          var startCurveUp = link.startCurveUp;\n          var endCurveUp = link.endCurveUp;\n          var sourceNode = null;\n          var destinationNode = null;\n\n          if (sourceNodeId != null) {\n            sourceNode = this.getNodeById(sourceNodeId);\n          }\n\n          if (destinationNodeId != null) {\n            destinationNode = this.getNodeById(destinationNodeId);\n          }\n\n          // create a ConceptMapLink\n          var conceptMapLink = this.ConceptMapService.newConceptMapLink(this.draw, instanceId, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, endCurveUp);\n\n          // add the link to our array of links\n          this.addLink(conceptMapLink);\n\n          // set the mouse events on the link\n          this.setLinkMouseEvents(conceptMapLink);\n        }\n      }\n\n      if (conceptMapData.backgroundPath != null &&\n          conceptMapData.backgroundPath != '') {\n        this.setBackgroundImage(conceptMapData.backgroundPath,\n          conceptMapData.stretchBackground);\n      }\n\n      /*\n       * move the link text group to the front so that they are on top\n       * of links\n       */\n      this.moveLinkTextToFront();\n\n      // move the nodes to the front so that they are on top of links\n      this.moveNodesToFront();\n\n      /*\n       * set a timeout to refresh the link labels so that the rectangles\n       * around the labels are properly resized\n       */\n      this.$timeout(() => {\n        this.refreshLinkLabels();\n      });\n    }\n  }\n\n  /**\n   * Refresh the link labels so that the rectangles around the text\n   * labels are resized to fit the text properly. This is required because\n   * the rectangles are not properly sized when the ConceptMapLinks are\n   * initialized. The rectangles need to be rendered first and then the\n   * labels need to be set in order for the rectangles to be resized properly.\n   * This is why this function is called in a $timeout.\n   */\n  refreshLinkLabels() {\n\n    if (this.nodes != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var node = this.nodes[n];\n\n        if (node != null) {\n          // get the label from the node\n          var label = node.getLabel();\n\n          /*\n           * set the label back into the node so that the rectangle\n           * around the text label is resized to the text\n           */\n          node.setLabel(label);\n        }\n      }\n    }\n\n    if (this.links != null) {\n\n      // loop throgh all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var link = this.links[l];\n\n        if (link != null) {\n          // get the label from the link\n          var label = link.getLabel();\n\n          /*\n           * set the label back into the link so that the rectangle\n           * around the text label is resized to the text\n           */\n          link.setLabel(label);\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if latest component state is a submission and set isSubmitDirty accordingly\n   */\n  processLatestSubmit() {\n    let latestState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n    if (latestState) {\n      if (latestState.isSubmit) {\n        // latest state is a submission, so set isSubmitDirty to false and notify node\n        this.isSubmitDirty = false;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SUBMITTED'), latestState.clientSaveTime);\n      } else {\n        // latest state is not a submission, so set isSubmitDirty to true and notify node\n        this.isSubmitDirty = true;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SAVED'), latestState.clientSaveTime);\n      }\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n    this.isSubmit = false;\n\n    if (this.mode === 'authoring') {\n      /*\n       * we are in authoring mode so we will set isDirty to false here\n       * because the 'componentSaveTriggered' event won't work in\n       * authoring mode\n       */\n      this.isDirty = false;\n    }\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    // trigger the submit\n    var submitTriggeredBy = 'componentSubmitButton';\n    this.submit(submitTriggeredBy);\n  };\n\n  /**\n   * A submit was triggered by the component submit button or node submit button\n   * @param submitTriggeredBy what triggered the submit\n   * e.g. 'componentSubmitButton' or 'nodeSubmitButton'\n   */\n  submit(submitTriggeredBy) {\n\n    if (this.isSubmitDirty) {\n\n      var performSubmit = true;\n\n      if (this.componentContent.maxSubmitCount != null) {\n        // there is a max submit count\n\n        // calculate the number of submits this student has left\n        var numberOfSubmitsLeft = this.componentContent.maxSubmitCount - this.submitCounter;\n\n        var message = '';\n\n        if (numberOfSubmitsLeft <= 0) {\n\n          // the student does not have any more chances to submit\n          alert(this.$translate('conceptMap.youHaveNoMoreChances'));\n          performSubmit = false;\n        } else if (numberOfSubmitsLeft == 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('conceptMap.youHaveOneChance', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          performSubmit = confirm(message);\n        } else if (numberOfSubmitsLeft > 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('conceptMap.youHaveMultipleChances', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          performSubmit = confirm(message);\n        }\n      }\n\n      if (performSubmit) {\n        // increment the submit counter\n        this.submitCounter++;\n\n        // check if the student has used up all of their submits\n        if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n          /*\n           * the student has used up all of their submits so we will\n           * disable the submit button\n           */\n          //this.isDisabled = true;\n          this.isSubmitButtonDisabled = true;\n        }\n\n        // get the custom rule evaluator code that was authored\n        var customRuleEvaluator = this.componentContent.customRuleEvaluator;\n\n        // get the component content\n        var componentContent = this.componentContent;\n\n        // get the student concept map\n        var conceptMapData = this.getConceptMapData();\n\n        var thisConceptMapService = this.ConceptMapService;\n\n        // the result will be stored in this variable\n        var thisResult = {};\n\n        /*\n         * create the any function that can be called in the custom rule\n         * evaluator code. the arguments to the any function are rule names.\n         * for example if we are looking for any of the links below\n         * Sun (Infrared Radiation) Space\n         * Sun (Heat) Space\n         * Sun (Solar Radiation) Space\n         * we will call the any function like this\n         * any(\"Sun (Infrared Radiation) Space\", \"Sun (Heat) Space\", \"Sun (Solar Radiation) Space\")\n         * these dynamic arguments will be placed in the arguments variable\n         */\n        var any = function() {\n          return thisConceptMapService.any(componentContent, conceptMapData, arguments);\n        };\n\n        /*\n         * create the all function that can be called in the custom rule\n         * evaluator code. the arguments to the all function are rule names.\n         * for example if we are looking for all of the links below\n         * Sun (Infrared Radiation) Space\n         * Sun (Heat) Space\n         * Sun (Solar Radiation) Space\n         * we will call the any function like this\n         * all(\"Sun (Infrared Radiation) Space\", \"Sun (Heat) Space\", \"Sun (Solar Radiation) Space\")\n         * these dynamic arguments will be placed in the arguments variable\n         */\n        var all = function() {\n          return thisConceptMapService.all(componentContent, conceptMapData, arguments);\n        }\n\n        /*\n         * create the setResult function that can be called in the custom rule\n         * evaluator code\n         */\n        var setResult = function(result) {\n          thisResult = result;\n        }\n\n        // run the custom rule evaluator\n        eval(customRuleEvaluator);\n\n        // remember the auto feedback result\n        this.autoFeedbackResult = thisResult;\n\n        var resultString = '';\n\n        if (this.componentContent.showAutoScore && thisResult.score != null) {\n          // display the score\n          resultString += this.$translate('SCORE') + ': ' + thisResult.score;\n\n          if (this.componentContent.maxScore != null && this.componentContent.maxScore != '') {\n            // show the max score as the denominator\n            resultString += '/' + this.componentContent.maxScore;\n          }\n        }\n\n        if (this.componentContent.showAutoFeedback && thisResult.feedback != null) {\n          if (resultString != '') {\n            // add a new line if the result string is not empty\n            resultString += '<br/>';\n          }\n\n          // display the feedback\n          resultString += this.$translate('FEEDBACK') + ': ' + thisResult.feedback;\n        }\n\n        if (resultString != '') {\n          // show the auto feedback in a modal dialog\n          this.$mdDialog.show(\n            this.$mdDialog.alert()\n            .clickOutsideToClose(true)\n            .title(this.$translate('FEEDBACK'))\n            .htmlContent(resultString)\n            .ariaLabel(this.$translate('FEEDBACK'))\n            .ok(this.$translate('CLOSE'))\n          );\n        }\n\n        // remember the feedback string\n        this.autoFeedbackString = resultString;\n\n        this.isSubmit = true;\n\n        if (this.mode === 'authoring') {\n          /*\n           * we are in the authoring view so we will set the\n           * latest score and comment annotations manually\n           */\n\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.createComponentState('submit');\n        }\n\n        // tell the parent node that this component wants to submit\n        this.$scope.$emit('componentSubmitTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n      } else {\n        /*\n         * the student has cancelled the submit so if a component state\n         * is created, it will just be a regular save and not submit\n         */\n        this.isSubmit = false;\n      }\n    }\n  };\n\n  lockIfNecessary() {\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flags so we will know we need to save or submit the\n     * student work later\n     */\n    this.isDirty = true;\n    this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: true});\n\n    this.isSubmitDirty = true;\n    this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n\n    // clear out the save message\n    this.setSaveMessage('', null);\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Get the student response\n   */\n  getStudentResponse() {\n    return this.studentResponse;\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    var deferred = this.$q.defer();\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    // get the text the student typed\n    var response = this.getStudentResponse();\n\n    // set the response into the component state\n    var studentData = {};\n    var conceptMapData = this.getConceptMapData();\n    studentData.conceptMapData = conceptMapData;\n\n    // the student submitted this work\n    componentState.isSubmit = this.isSubmit;\n\n    if (this.isSubmit) {\n\n      /*\n       * reset the isSubmit value so that the next component state\n       * doesn't maintain the same value\n       */\n      this.isSubmit = false;\n\n      if (this.autoFeedbackResult != null) {\n        // there is auto feedback\n\n        if (this.autoFeedbackResult.score != null || this.autoFeedbackResult.feedback != null) {\n          // there is an auto score or auto feedback\n\n          // get the values used to create an annotation\n          var runId = this.ConfigService.getRunId();\n          var periodId = this.ConfigService.getPeriodId();\n          var nodeId = this.nodeId;\n          var componentId = this.componentId;\n          var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n          // create an array of annotations to be saved with the component state\n          componentState.annotations = [];\n\n          if (this.autoFeedbackResult.score != null) {\n            // there is an auto score\n\n            // create the data object for the annotation\n            var data = {};\n            data.value = parseFloat(this.autoFeedbackResult.score);\n            data.autoGrader = 'conceptMap';\n\n            if (this.componentContent.maxScore != null) {\n              data.maxAutoScore = parseFloat(this.componentContent.maxScore);\n            }\n\n            // create the auto score annotation\n            var scoreAnnotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n            // add the annotation to the component state\n            componentState.annotations.push(scoreAnnotation);\n\n            if (this.mode === 'authoring') {\n              if (this.latestAnnotations == null) {\n                this.latestAnnotations = {};\n              }\n\n              /*\n               * we are in the authoring view so we will set the\n               * latest score annotation manually\n               */\n              this.latestAnnotations.score = scoreAnnotation;\n            }\n          }\n\n          if (this.autoFeedbackResult.feedback != null) {\n            // there is auto feedback\n\n            // create the data object for the annotation\n            var data = {};\n            data.value = this.autoFeedbackResult.feedback;\n            data.autoGrader = 'conceptMap';\n\n            // create the auto score annotation\n            var commentAnnotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n            // add the annotation to the component state\n            componentState.annotations.push(commentAnnotation);\n\n            if (this.mode === 'authoring') {\n              if (this.latestAnnotations == null) {\n                this.latestAnnotations = {};\n              }\n\n              /*\n               * we are in the authoring view so we will set the\n               * latest comment annotation manually\n               */\n              this.latestAnnotations.comment = commentAnnotation;\n            }\n          }\n        }\n      }\n    }\n\n    // set the submit counter\n    studentData.submitCounter = this.submitCounter;\n\n    // set the student data into the component state\n    componentState.studentData = studentData;\n\n    // set the component type\n    componentState.componentType = 'ConceptMap';\n\n    // set the node id\n    componentState.nodeId = this.nodeId;\n\n    // set the component id\n    componentState.componentId = this.componentId;\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Get the concept map data\n   * @returns an object containing a array of nodes and an array of links\n   */\n  getConceptMapData() {\n    var studentData = {};\n    studentData.nodes = [];\n    studentData.links = [];\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      // get the JSON representation of the node\n      var nodeJSON = node.toJSONObject();\n\n      studentData.nodes.push(nodeJSON);\n    }\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var link = this.links[l];\n\n      // get the JSON representation of the link\n      var linkJSON = link.toJSONObject();\n\n      studentData.links.push(linkJSON);\n    }\n\n    // set the background data into the student data\n    if (this.background != null) {\n      var background = this.background;\n\n      // this is the background file name e.g. background.png\n      studentData.background = background.substring(background.lastIndexOf('/') + 1);\n\n      // this is the background path e.g. /wise/curriculum/108/assets/background.png\n      studentData.backgroundPath = background;\n\n      // whether to stretch the background to fill the svg element\n      studentData.stretchBackground = this.stretchBackground;\n    }\n\n    return studentData;\n  }\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n\n    /*\n     * we don't need to perform any additional processing so we can resolve\n     * the promise immediately\n     */\n    deferred.resolve(componentState);\n  }\n\n  /**\n   * Create an auto score annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto score annotation\n   */\n  createAutoScoreAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto score annotation\n    var annotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Create an auto comment annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto comment annotation\n   */\n  createAutoCommentAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto comment annotation\n    var annotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the component after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n    }\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  removeAttachment(attachment) {\n    if (this.attachments.indexOf(attachment) != -1) {\n      this.attachments.splice(this.attachments.indexOf(attachment), 1);\n      this.studentDataChanged();\n      // YOU ARE NOW FREEEEEEEEE!\n    }\n  };\n\n  /**\n   * Attach student asset to this Component's attachments\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          var attachment = {\n            studentAssetId: copiedAsset.id,\n            iconURL: copiedAsset.iconURL\n          };\n\n          this.attachments.push(attachment);\n          this.studentDataChanged();\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the number of rows for the textarea\n   */\n  getNumRows() {\n    var numRows = null;\n\n    if (this.componentContent != null) {\n      numRows = this.componentContent.numRows;\n    }\n\n    return numRows;\n  };\n\n  /**\n   * Get the number of columns for the textarea\n   */\n  getNumColumns() {\n    var numColumns = null;\n\n    if (this.componentContent != null) {\n      numColumns = this.componentContent.numColumns;\n    }\n\n    return numColumns;\n  };\n\n  /**\n   * Get the text the student typed\n   */\n  getResponse() {\n    var response = null;\n\n    if (this.studentResponse != null) {\n      response = this.studentResponse;\n    }\n\n    return response;\n  };\n\n  /**\n   * Import work from another component\n   */\n  importWork() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // get the import previous work node id and component id\n      var importPreviousWorkNodeId = componentContent.importPreviousWorkNodeId;\n      var importPreviousWorkComponentId = componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        if (componentContent.importWorkNodeId != null && componentContent.importWorkNodeId != '') {\n          importPreviousWorkNodeId = componentContent.importWorkNodeId;\n        }\n      }\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        if (componentContent.importWorkComponentId != null && componentContent.importWorkComponentId != '') {\n          importPreviousWorkComponentId = componentContent.importWorkComponentId;\n        }\n      }\n\n      if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importPreviousWorkNodeId, importPreviousWorkComponentId);\n\n          if (importWorkComponentState != null) {\n            /*\n             * populate a new component state with the work from the\n             * imported component state\n             */\n            var populatedComponentState = this.ConceptMapService.populateComponentState(importWorkComponentState);\n\n            /*\n             * inject the asset paths so that the node file names change from\n             * 'Sun.png' to '/wise/curriculum/129/assets/Sun.png'\n             */\n            populatedComponentState = this.ProjectService.injectAssetPaths(populatedComponentState);\n\n            // populate the component state into this component\n            this.setStudentWork(populatedComponentState);\n\n            // make the work dirty so that it gets saved\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * The show previous work checkbox was clicked\n   */\n  authoringShowPreviousWorkClicked() {\n\n    if (!this.authoringComponentContent.showPreviousWork) {\n      /*\n       * show previous work has been turned off so we will clear the\n       * show previous work node id, show previous work component id, and\n       * show previous work prompt values\n       */\n      this.authoringComponentContent.showPreviousWorkNodeId = null;\n      this.authoringComponentContent.showPreviousWorkComponentId = null;\n      this.authoringComponentContent.showPreviousWorkPrompt = null;\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The show previous work node id has changed\n   */\n  authoringShowPreviousWorkNodeIdChanged() {\n\n    if (this.authoringComponentContent.showPreviousWorkNodeId == null ||\n      this.authoringComponentContent.showPreviousWorkNodeId == '') {\n\n      /*\n       * the show previous work node id is null so we will also set the\n       * show previous component id to null\n       */\n      this.authoringComponentContent.showPreviousWorkComponentId = '';\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The show previous work component id has changed\n   */\n  authoringShowPreviousWorkComponentIdChanged() {\n\n    // get the show previous work node id\n    var showPreviousWorkNodeId = this.authoringComponentContent.showPreviousWorkNodeId;\n\n    // get the show previous work prompt boolean value\n    var showPreviousWorkPrompt = this.authoringComponentContent.showPreviousWorkPrompt;\n\n    // get the old show previous work component id\n    var oldShowPreviousWorkComponentId = this.componentContent.showPreviousWorkComponentId;\n\n    // get the new show previous work component id\n    var newShowPreviousWorkComponentId = this.authoringComponentContent.showPreviousWorkComponentId;\n\n    // get the new show previous work component\n    var newShowPreviousWorkComponent = this.ProjectService.getComponentByNodeIdAndComponentId(showPreviousWorkNodeId, newShowPreviousWorkComponentId);\n\n    if (newShowPreviousWorkComponent == null || newShowPreviousWorkComponent == '') {\n      // the new show previous work component is empty\n\n      // save the component\n      this.authoringViewComponentChanged();\n    } else if (newShowPreviousWorkComponent != null) {\n\n      // get the current component type\n      var currentComponentType = this.componentContent.type;\n\n      // get the new component type\n      var newComponentType = newShowPreviousWorkComponent.type;\n\n      // check if the component types are different\n      if (newComponentType != currentComponentType) {\n        /*\n         * the component types are different so we will need to change\n         * the whole component\n         */\n\n        // make sure the author really wants to change the component type\n        var answer = confirm(this.$translate('ARE_YOU_SURE_YOU_WANT_TO_CHANGE_THIS_COMPONENT_TYPE'));\n\n        if (answer) {\n          // the author wants to change the component type\n\n          /*\n           * get the component service so we can make a new instance\n           * of the component\n           */\n          var componentService = this.$injector.get(newComponentType + 'Service');\n\n          if (componentService != null) {\n\n            // create a new component\n            var newComponent = componentService.createComponent();\n\n            // set move over the values we need to keep\n            newComponent.id = this.authoringComponentContent.id;\n            newComponent.showPreviousWork = true;\n            newComponent.showPreviousWorkNodeId = showPreviousWorkNodeId;\n            newComponent.showPreviousWorkComponentId = newShowPreviousWorkComponentId;\n            newComponent.showPreviousWorkPrompt = showPreviousWorkPrompt;\n\n            /*\n             * update the authoring component content JSON string to\n             * change the component\n             */\n            this.authoringComponentContentJSONString = JSON.stringify(newComponent);\n\n            // update the component in the project and save the project\n            this.advancedAuthoringViewComponentChanged();\n          }\n        } else {\n          /*\n           * the author does not want to change the component type so\n           * we will rollback the showPreviousWorkComponentId value\n           */\n          this.authoringComponentContent.showPreviousWorkComponentId = oldShowPreviousWorkComponentId;\n        }\n      } else {\n        /*\n         * the component types are the same so we do not need to change\n         * the component type and can just save\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * A node up button was clicked in the authoring tool so we will move the\n   * node up\n   * @param index the index of the node that we will move\n   */\n  authoringViewNodeUpButtonClicked(index) {\n\n    // check if the node is at the top\n    if (index != 0) {\n      // the node is not at the top so we can move it up\n\n      // get the nodes\n      var nodes = this.authoringComponentContent.nodes;\n\n      if (nodes != null) {\n\n        // get the node at the given index\n        var node = nodes[index];\n\n        // remove the node\n        nodes.splice(index, 1);\n\n        // insert the node back in one index back\n        nodes.splice(index - 1, 0, node);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * A node down button was clicked in the authoring tool so we will move the\n   * node down\n   * @param index the index of the node that we will move\n   */\n  authoringViewNodeDownButtonClicked(index) {\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    // check if the node is at the bottom\n    if (nodes != null && index != nodes.length - 1) {\n      // the node is not at the bottom so we can move it down\n\n      // get the node at the given index\n      var node = nodes[index];\n\n      // remove the node\n      nodes.splice(index, 1);\n\n      // insert the node back in one index ahead\n      nodes.splice(index + 1, 0, node);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * A node delete button was clicked in the authoring tool so we will remove\n   * the node\n   * @param index the index of the node that we will delete\n   */\n  authoringViewNodeDeleteButtonClicked(index) {\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    if (nodes != null) {\n\n      // get the node\n      var node = nodes[index];\n\n      if (node != null) {\n\n        // get the file name and label\n        var nodeFileName = node.fileName;\n        var nodeLabel = node.label;\n\n        // confirm with the author that they really want to delete the node\n        var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisNode', { nodeFileName: nodeFileName, nodeLabel: nodeLabel}));\n\n        if (answer) {\n          /*\n           * the author is sure they want to delete the node so we\n           * will remove it from the array\n           */\n          nodes.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link up button was clicked in the authoring tool so we will move the\n   * link up\n   * @param index the index of the link\n   */\n  authoringViewLinkUpButtonClicked(index) {\n\n    // check if the link is at the top\n    if (index != 0) {\n\n      // get the links\n      var links = this.authoringComponentContent.links;\n\n      if (links != null) {\n\n        // get a link\n        var link = links[index];\n\n        if (link != null) {\n\n          // remove the link\n          links.splice(index, 1);\n\n          // add the link back in one index back\n          links.splice(index - 1, 0, link);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link down button was clicked in the authoring tool so we will move the\n   * link down\n   * @param index the index of the link\n   */\n  authoringViewLinkDownButtonClicked(index) {\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    // check if the link is at the bottom\n    if (links != null && index != links.length - 1) {\n      // the node is not at the bottom so we can move it down\n\n      if (links != null) {\n\n        // get the link\n        var link = links[index];\n\n        if (link != null) {\n\n          // remove the link\n          links.splice(index, 1);\n\n          // add the link back in one index ahead\n          links.splice(index + 1, 0, link);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link delete button was clicked in the authoring tool so we remove the\n   * link\n   * @param index the index of the link\n   */\n  authoringViewLinkDeleteButtonClicked(index) {\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    if (links != null) {\n\n      // get a link\n      var link = links[index];\n\n      if (link != null) {\n\n        // get the link label\n        var linkLabel = link.label;\n\n        // confirm with the author that they really want to delete the link\n        var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisLink', { linkLabel: linkLabel}));\n\n        if (answer) {\n          /*\n           * the author is sure they want to delete the link so we\n           * will remove it from the array\n           */\n          links.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a node in the authoring tool\n   */\n  authoringViewAddNode() {\n\n    // get a new node id\n    var id = this.authoringGetNewConceptMapNodeId();\n\n    // create the new node\n    var newNode = {};\n    newNode.id = id;\n    newNode.label = '';\n    newNode.fileName = '';\n    newNode.width = 100;\n    newNode.height = 100;\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    // add the new node\n    nodes.push(newNode);\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get the concept map node with the given id\n   * @param nodeId the concept map node id\n   * @return the concept map node with the given node id\n   */\n  authoringViewGetNodeById(nodeId) {\n\n    if (nodeId != null &&\n      this.authoringComponentContent != null &&\n      this.authoringComponentContent.nodes != null) {\n\n      // loop through all the concept map nodes\n      for (var n = 0; n < this.authoringComponentContent.nodes.length; n++) {\n        var node = this.authoringComponentContent.nodes[n];\n\n        if (node != null) {\n          if (nodeId === node.id) {\n            // we have found the concept map node that we want\n            return node;\n          }\n        }\n      }\n    }\n\n    return null;\n  }\n\n  /**\n   * Add a link in the authoring tool\n   */\n  authoringViewAddLink() {\n\n    // get a new link id\n    var id = this.authoringGetNewConceptMapLinkId();\n\n    // create a new link\n    var newLink = {};\n    newLink.id = id;\n    newLink.label = '';\n    newLink.color = '';\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    // add the new link\n    links.push(newLink);\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get a new ConceptMapNode id that isn't being used\n   * @returns a new ConceptMapNode id e.g. 'node3'\n   */\n  authoringGetNewConceptMapNodeId() {\n\n    var nextAvailableNodeIdNumber = 1;\n\n    // array to remember the numbers that have been used in node ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.authoringComponentContent.nodes.length; x++) {\n      var node = this.authoringComponentContent.nodes[x];\n\n      if (node != null) {\n\n        // get the node id\n        var nodeId = node.id;\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('node', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableNodeIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'node' + nextAvailableNodeIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Get a new ConceptMapLink id that isn't being used\n   * @returns a new ConceptMapLink id e.g. 'link3'\n   */\n  authoringGetNewConceptMapLinkId() {\n\n    var nextAvailableLinkIdNumber = 1;\n\n    // array to remember the numbers that have been used in link ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.authoringComponentContent.links.length; x++) {\n      var link = this.authoringComponentContent.links[x];\n\n      if (link != null) {\n\n        // get the node id\n        var nodeId = link.id;\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('link', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableLinkIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'link' + nextAvailableLinkIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * A \"with link\" checkbox was checked\n   * @param ruleIndex the index of the rule\n   */\n  authoringRuleLinkCheckboxClicked(ruleIndex) {\n\n    // get the rule that was checked\n    var rule = this.authoringComponentContent.rules[ruleIndex];\n\n    if (rule != null) {\n      if (rule.type == 'node') {\n        /*\n         * the rule has been set to 'node' instead of 'link' so we\n         * will remove the link label and other node label\n         */\n\n        delete rule.linkLabel;\n        delete rule.otherNodeLabel;\n      }\n    }\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a new rule\n   */\n  authoringAddRule() {\n\n    // create the new rule\n    var newRule = {};\n    newRule.name = '';\n    newRule.type = 'node';\n    newRule.categories = [];\n    newRule.nodeLabel = '';\n    newRule.comparison = 'exactly';\n    newRule.number = 1;\n    newRule.not = false;\n\n    // add the rule to the array of rules\n    this.authoringComponentContent.rules.push(newRule);\n\n    var showSubmitButton = false;\n\n    if (this.authoringComponentContent.rules.length > 0) {\n      // there are scoring rules so we will show the submit button\n      showSubmitButton = true;\n    }\n\n    // set the value of the showSubmitButton field\n    this.setShowSubmitButtonValue(showSubmitButton);\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a rule up\n   * @param index the index of the rule\n   */\n  authoringViewRuleUpButtonClicked(index) {\n\n    // check if the rule is at the top\n    if (index != 0) {\n      // the rule is not at the top so we can move it up\n\n      // get the rules\n      var rules = this.authoringComponentContent.rules;\n\n      if (rules != null) {\n\n        // get the rule at the given index\n        var rule = rules[index];\n\n        // remove the rule\n        rules.splice(index, 1);\n\n        // insert the rule back in one index back\n        rules.splice(index - 1, 0, rule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a rule down\n   * @param index the index of the rule\n   */\n  authoringViewRuleDownButtonClicked(index) {\n\n    // get the rules\n    var rules = this.authoringComponentContent.rules;\n\n    // check if the rule is at the bottom\n    if (rules != null && index != rules.length - 1) {\n      // the rule is not at the bottom so we can move it down\n\n      // get the rule at the given index\n      var rule = rules[index];\n\n      // remove the rule\n      rules.splice(index, 1);\n\n      // insert the rule back in one index ahead\n      rules.splice(index + 1, 0, rule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /*\n   * Delete a rule\n   * @param index the index of the rule to delete\n   */\n  authoringViewRuleDeleteButtonClicked(index) {\n\n    // get the rule\n    var rule = this.authoringComponentContent.rules[index];\n\n    if (rule != null) {\n\n      // get the rule name\n      var ruleName = rule.name;\n\n      // confirm with the author that they really want to delete the rule\n      var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisRule', { ruleName: ruleName }));\n\n      if (answer) {\n        // remove the rule at the given index\n        this.authoringComponentContent.rules.splice(index, 1);\n\n        // perform updating and saving\n        this.authoringViewComponentChanged();\n      }\n    }\n\n    var showSubmitButton = false;\n\n    if (this.authoringComponentContent.rules.length > 0) {\n      // there are scoring rules so we will show the submit button\n      showSubmitButton = true;\n    }\n\n    // set the value of the showSubmitButton field\n    this.setShowSubmitButtonValue(showSubmitButton);\n  }\n\n  /**\n   * Add a category to a rule\n   * @param rule the rule\n   */\n  authoringViewAddCategoryClicked(rule) {\n\n    if (rule != null) {\n      // add an empty category name\n      rule.categories.push('');\n    }\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a category from a rule\n   * @param rule delete a category from this rule\n   * @param index the index of the category\n   */\n  authoringViewDeleteCategoryClicked(rule, index) {\n\n    if (rule != null) {\n\n      // get the rule name\n      var ruleName = rule.name;\n\n      // get the category name\n      var categoryName = rule.categories[index];\n\n      // confirm with the author that they really want to delete the category from the rule\n      var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteTheCategory' , { ruleName: ruleName, categoryName: categoryName }));\n\n      if (answer) {\n        // remove the category at the index\n        rule.categories.splice(index, 1);\n\n        // perform updating and saving\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Get all the step node ids in the project\n   * @returns all the step node ids\n   */\n  getStepNodeIds() {\n    var stepNodeIds = this.ProjectService.getNodeIds();\n\n    return stepNodeIds;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Set the message next to the save button\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setSaveMessage(message, time) {\n    this.saveMessage.text = message;\n    this.saveMessage.time = time;\n  };\n\n  /**\n   * Check if CRater is enabled for this component\n   * @returns whether CRater is enabled for this component\n   */\n  isCRaterEnabled() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterEnabled(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on save\n   * @returns whether CRater is set to score on save\n   */\n  isCRaterScoreOnSave() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSave(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on submit\n   * @returns whether CRater is set to score on submit\n   */\n  isCRaterScoreOnSubmit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSubmit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on change\n   * @returns whether CRater is set to score on change\n   */\n  isCRaterScoreOnChange() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnChange(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score when the student exits the step\n   * @returns whether CRater is set to score when the student exits the step\n   */\n  isCRaterScoreOnExit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnExit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    exitListener = this.$scope.$on('exit', angular.bind(this, function(event, args) {\n\n    }));\n  };\n\n  /**\n   * A link type was selected in the link type chooser popup\n   * @param linkType the authored link object that was selected\n   */\n  linkTypeSelected(selectedLink) {\n\n    if (this.highlightedElement != null &&\n      this.highlightedElement.constructor.name == 'ConceptMapLink') {\n\n      /*\n       * get the ConceptMapLink object that we are setting the link type\n       * for\n       */\n      var link = this.highlightedElement;\n\n      // get the label, color, and original id\n      var label = selectedLink.label;\n      var color = selectedLink.color;\n      var originalId = selectedLink.id;\n\n      // set the label, color, and original id into the link\n      link.setLabel(label);\n      link.setColor(color);\n      link.setOriginalId(originalId);\n    }\n\n    // hide the link type chooser\n    this.hideLinkTypeChooser();\n\n    // make the link not highlighted\n    this.clearHighlightedElement();\n\n    // handle the student data changing\n    this.studentDataChanged();\n  }\n\n  /**\n   * Get the links title\n   * @returns the links title\n   */\n  getLinksTitle() {\n    var linksTitle = '';\n\n    if (this.componentContent != null) {\n      linksTitle = this.componentContent.linksTitle;\n    }\n\n    return linksTitle;\n  }\n\n  /**\n   * Show the link type chooser popup\n   */\n  showLinkTypeChooser() {\n\n    // check if we have initialized the popup\n    if (!this.initializedDisplayLinkTypeChooserModalOverlay) {\n      // we have not initialized the popup so we will do so now\n      this.setLinkTypeChooserOverlayStyle();\n      this.initializedDisplayLinkTypeChooserModalOverlay = true;\n    }\n\n    /*\n     * initialize the top left of the link chooser popup to show up on\n     * the top right of the svg element\n     */\n    this.linkTypeChooserStyle['left'] = '600px';\n    this.linkTypeChooserStyle['top'] = '20px';\n\n    this.displayLinkTypeChooser = true;\n  }\n\n  /**\n   * Hide the link type chooser popup\n   */\n  hideLinkTypeChooser() {\n\n    // hide the link type chooser\n    this.displayLinkTypeChooser = false;\n    this.displayLinkTypeChooserModalOverlay = false;\n    this.newlyCreatedLink = null;\n\n    if (!this.$scope.$$phase) {\n      // TODO GK (from HT) this line was causing a lot of js errors ( $digest already in progress ), so I commented it out\n      // and it still seems to work. Do we need this line?\n      // see here: http://stackoverflow.com/questions/12729122/angularjs-prevent-error-digest-already-in-progress-when-calling-scope-apply\n      //this.$scope.$apply();\n    }\n  }\n\n  /**\n   * Setup the svg\n   */\n  setupSVG() {\n    // get the svg element in the svg.js world\n    this.draw = SVG(this.svgId);\n    this.draw.width(this.width);\n    this.draw.height(this.height);\n\n    this.highlightedElement = null;\n    this.activeNode = null;\n    this.activeLink = null;\n    this.drawingLink = false;\n    this.newlyCreatedLink = null;\n\n    // set the mouse down listener\n    this.draw.mousedown((event) => {\n      this.svgMouseDown(event);\n    });\n\n    // set the mouse up listener\n    this.draw.mouseup((event) => {\n      this.svgMouseUp(event);\n    });\n\n    // set the mouse move listener\n    this.draw.mousemove((event) => {\n      this.svgMouseMove(event);\n    });\n\n    // get the svg element in the angular world\n    var svg = angular.element('#' + this.svgId);\n\n    /*\n     * check if we have already added the dragover listener so we don't\n     * add multiple listeners for the same event. adding multiple listeners\n     * to the same event may occur in the authoring tool.\n     */\n    if (!this.addedDragOverListener) {\n      /*\n       * listen for the dragover event which occurs when the user is\n       * dragging a node onto the svg\n       */\n      svg[0].addEventListener('dragover', (event) => {\n        /*\n         * prevent the default because if we don't, the user won't\n         * be able to drop a new node instance onto the svg in the\n         * authoring mode\n         */\n        event.preventDefault();\n      });\n\n      this.addedDragOverListener = true;\n    }\n\n    /*\n     * check if we have already added the drop listener so we don't\n     * add multiple listeners for the same event. adding multiple listeners\n     * to the same event may occur in the authoring tool.\n     */\n    if (!this.addedDropListener) {\n      /*\n       * listen for the drop event which occurs when the student drops\n       * a new node onto the svg\n       */\n      svg[0].addEventListener('drop', (event) => {\n\n        /*\n         * the user has dropped a new node onto the svg to create a\n         * new instance of a node\n         */\n        this.newNodeDropped(event);\n      });\n\n      this.addedDropListener = true;\n    }\n\n    // set the link type chooser style\n    this.setLinkTypeChooserStyle();\n  }\n\n  /**\n   * Set the link type chooser popup style\n   */\n  setLinkTypeChooserStyle() {\n\n    /*\n     * set the link type chooser popup to show up in the upper right of\n     * the svg element\n     */\n    this.linkTypeChooserStyle = {\n      'width': '300px',\n      'position': 'absolute',\n      'left': '600px',\n      'top': '20px',\n      'border': '1px solid black',\n      'backgroundColor': 'white',\n      'cursor': 'pointer',\n      'z-index': 10000,\n      'padding': '16px'\n    }\n  }\n\n  /**\n   * Set the link type chooser popup overlay style\n   */\n  setLinkTypeChooserOverlayStyle() {\n\n    // calculate the modal overlay width and height\n    this.modalWidth = this.getModalWidth();\n    this.modalHeight = this.getModalHeight();\n\n    //var overlayWidth = this.modalWidth + 'px';\n    var overlayWidth = this.modalWidth;\n\n    var conceptMapContainer = angular.element('#' + this.conceptMapContainerId);\n    var width = conceptMapContainer.width();\n    var height = conceptMapContainer.height();\n    var offset = conceptMapContainer.offset();\n\n    var offsetLeft = offset.left;\n    var offsetTop = offset.top;\n    offsetLeft = 0;\n    offsetTop = 0;\n\n    this.linkTypeChooserModalOverlayStyle = {\n      'position': 'absolute',\n      'z-index': 9999,\n      'width': overlayWidth,\n      'height': height,\n      'background-color': '#000000',\n      'opacity': 0.4\n    }\n  }\n\n  /**\n   * Get the width that the modal overlay should be\n   * @returns the width that the modal overlay should be\n   */\n  getModalWidth() {\n\n    var selectNodeBarWidth = null;\n    var svgWidth = null;\n\n    // get the width of the left select node bar\n    var selectNodeBarWidthString = angular.element(document.getElementById('#' + this.selectNodeBarId)).css('width');\n\n    // get the width of the svg element\n    var svgWidthString = angular.element(document.getElementById(this.svgId)).css('width');\n\n    if (selectNodeBarWidthString != null && svgWidthString != null) {\n      // get the integer values\n      selectNodeBarWidth = parseInt(selectNodeBarWidthString.replace('px', ''));\n      svgWidth = parseInt(svgWidthString.replace('px', ''));\n    }\n\n    var overlayWidth = null;\n\n    if (selectNodeBarWidth != null && svgWidth != null) {\n      // calculate the sum of the widths\n      overlayWidth = selectNodeBarWidth + svgWidth;\n    }\n\n    return overlayWidth;\n  }\n\n  /**\n   * Get the height that the modal overlay should be\n   * @returns the height that the modal overlay should be\n   */\n  getModalHeight() {\n\n    var selectNodeBarHeight = null;\n    var svgHeight = null;\n\n    // get the height of the left select node bar\n    var selectNodeBarHeightString = angular.element(document.getElementById('#' + this.selectNodeBarId)).css('height');\n\n    // get the height of the svg element\n    var svgHeightString = angular.element(document.getElementById(this.svgId)).css('height');\n\n    if (selectNodeBarHeightString != null && svgHeightString != null) {\n      // get the integer values\n      selectNodeBarHeight = parseInt(selectNodeBarHeightString.replace('px', ''));\n      svgHeight = parseInt(svgHeightString.replace('px', ''));\n    }\n\n    var overlayHeight = null;\n\n    if (selectNodeBarHeight != null && svgHeight != null) {\n      // get the larger of the two heights\n      overlayHeight = Math.max(selectNodeBarHeight, svgHeight);\n    }\n\n    return overlayHeight;\n  }\n\n  /**\n   * The cancel button on the link type chooser was clicked\n   */\n  cancelLinkTypeChooser() {\n\n    if (this.newlyCreatedLink != null) {\n      /*\n       * the student has just created this link and has not yet chosen\n       * a link type so we will remove the link\n       */\n      this.newlyCreatedLink.remove();\n      this.newlyCreatedLink = null;\n    }\n\n    // hide the link chooser\n    this.hideLinkTypeChooser();\n\n    // make the link not highlighted\n    this.clearHighlightedElement();\n  }\n\n  /**\n   * Called when the mouse iss clicked down on a blank spot in the svg element\n   * @param event the mouse down event\n   */\n  svgMouseDown(event) {\n    if (event.target.tagName == 'svg') {\n      // remove highlighting from any item that was previously highlighted\n      this.clearHighlightedElement();\n    }\n  }\n\n  /**\n   * Called when the mouse is released\n   * @param event the mouse up event\n   */\n  svgMouseUp(event) {\n\n    if (this.activeLink != null && this.activeNode == null) {\n      /*\n       * the student was creating a link but did not connect the link\n       * to a destination node so we will just remove the link\n       */\n      this.activeLink.remove();\n    }\n\n    // we are no longer drawing a link\n    this.drawingLink = false;\n\n    // there is no longer an active link\n    this.activeLink = null;\n\n    // enable node draggin\n    this.enableNodeDragging();\n    this.moveLinkTextToFront();\n    // move the nodes to the front so that they are on top of links\n    this.moveNodesToFront();\n  }\n\n  /**\n   * Called when the mouse is moved\n   * @param event the mouse move event\n   */\n  svgMouseMove(event) {\n\n    if (this.activeLink != null) {\n      /*\n       * there is an active link which means the student has created a\n       * new link and is in the process of choosing the link's destination\n       * node\n       */\n\n      // get the coordinates that the link should be updated to\n      var coordinates = this.getRelativeCoordinatesByEvent(event);\n      var x1 = null;\n      var y1 = null;\n      var x2 = coordinates.x;\n      var y2 = coordinates.y;\n\n      /*\n       * get the location of the center of the connector that the link\n       * originated from\n       */\n      var startX = this.activeLinkStartX;\n      var startY = this.activeLinkStartY;\n\n      /*\n       * get the distance from the start to the current position of the\n       * mouse\n       */\n      var distance = this.ConceptMapService.calculateDistance(startX, startY, x2, y2);\n\n      /*\n       * check if we have set the curvature yet and that the mouse\n       * is more than 20 pixels away from the start.\n       *\n       * we will determine the curvature of the link based upon how\n       * the user has dragged the mouse in relation to the center\n       * of the connector. if they start drawing the link horizontally\n       * we will create a straight line with no curvature. if they\n       * start drawing the link by moving the mouse up, we will create\n       * a line that curves up. if they start drawing the link by\n       * moving the mouse down, we will create a line that curves down.\n       */\n      if (!this.linkCurvatureSet && distance > 20) {\n\n        /*\n         * get the slope of the line from the start to the location\n         * of the mouse\n         */\n        var slope = Math.abs(this.ConceptMapService.getSlope(startX, startY, x2, y2));\n\n        if (y2 < startY) {\n          // the user has moved the mouse above the connector\n\n          if (slope == null) {\n            /*\n             * the slope is infinite so we will default the\n             * curvature to 0.5\n             */\n            this.activeLink.curvature = 0.5;\n          } else if (slope < 1.0) {\n            // make the link straight\n            this.activeLink.curvature = 0.0;\n          } else {\n            // make the link curved\n            this.activeLink.curvature = 0.5;\n          }\n\n          // make the link curve up\n          this.activeLink.startCurveUp = true;\n          this.activeLink.endCurveUp = true;\n        } else if (y2 > startY) {\n          // the user has moved the mouse below the connector\n\n          if (slope == null) {\n            /*\n             * the slope is infinite so we will default the\n             * curvature to 0.5\n             */\n            this.activeLink.curvature = 0.5;\n          } else if (slope < 1.0) {\n            // make the link straight\n            this.activeLink.curvature = 0.0;\n          } else {\n            // make the link curved\n            this.activeLink.curvature = 0.5;\n          }\n\n          // make the link curve down\n          this.activeLink.startCurveUp = false;\n          this.activeLink.endCurveUp = false;\n        }\n\n        // remember that we have set the curvature\n        this.linkCurvatureSet = true;\n      }\n\n      var isDragging = true;\n\n      // redraw the link with the new coordinates\n      this.activeLink.updateCoordinates(x1, y1, x2, y2, isDragging);\n    }\n  }\n\n  /**\n   * Set the active node. This is called when the student places the mouse\n   * over a node. When a node becomes active, we show the delete button and\n   * the border.\n   * @param node the node to make active\n   */\n  setActiveNode(node) {\n    if (node != null) {\n      // show the delete button for the node\n      node.showDeleteButton();\n\n      // show the border for the node\n      node.showBorder();\n\n      // remember the active node\n      this.activeNode = node;\n    }\n  }\n\n  /**\n   * Clear the active node\n   */\n  clearActiveNode() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var tempNode = this.nodes[n];\n\n      if (tempNode == this.activeNode && tempNode != this.highlightedElement) {\n        /*\n         * we have found the node and it is not highlighted so we will\n         * hide the delete button and hide the border\n         */\n        tempNode.hideDeleteButton();\n        tempNode.hideBorder();\n      }\n    }\n\n    this.activeNode = null;\n  }\n\n  /**\n   * Get the coordinates of the mouse relative to the svg element\n   * @param event a mouse event\n   * @returns an object containing x and y values\n   */\n  getRelativeCoordinatesByEvent(event) {\n\n    // get the offset of the mouse from its parent\n    var offsetX = event.offsetX;\n    var offsetY = event.offsetY;\n\n    var parentOffsetX = 0;\n    var parentOffsetY = 0;\n\n    // get the user agent so we can determine which browser the user is using\n    var userAgent = navigator.userAgent;\n\n    if (event.target.tagName == 'svg') {\n      // the target is the svg element\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n        var matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n        matrix = event.target.createSVGMatrix();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      } else {\n        // the user is using some other browser\n        matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    } else if (event.target.tagName == 'circle') {\n      // the target is a node connector circle or delete circle\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the matrix of the group\n        var matrix = event.target.getCTM();\n\n        // get the bounding box of the circle\n        var bbox = event.target.getBBox();\n\n        /*\n         * get the bounding box of the circle so we can get the\n         * coordinates of the circle within the group\n         */\n        var x = bbox.x;\n        var y = bbox.y;\n\n        // get the absolute coordinates of the circle\n        parentOffsetX = matrix.e + bbox.x;\n        parentOffsetY = matrix.f + bbox.y;\n      }\n    } else if (event.target.tagName == 'rect') {\n      // the target is the rectangle that outlines the image\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the matrix of the group\n        var matrix = event.target.getCTM();\n\n        // get the bounding box of the rect\n        var bbox = event.target.getBBox();\n\n        /*\n         * get the bounding box of the rect so we can get the\n         * coordinates of the rect within the group\n         */\n        var x = bbox.x;\n        var y = bbox.y;\n\n        // get the absolute coordinates of the rect\n        parentOffsetX = matrix.e + x;\n        parentOffsetY = matrix.f + y;\n      }\n    } else if (event.target.tagName == 'image') {\n      // the target is an image\n\n      if (userAgent.indexOf('Chrome') != -1) {\n\n      } else if (userAgent.indexOf('Firefox') != -1) {\n\n        // get the matrix of the group\n        var matrix = event.target.parentElement.getCTM();\n\n        // get the coordinates of the upper left corner of the group\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    } else if (event.target.tagName == 'path') {\n      /*\n       * the target is the link line. sometimes the mouse can be over the\n       * link if the student is moving the mouse around quickly.\n       */\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the coordinates of the head of the link\n        var x2 = event.target.attributes['x2'];\n        var y2 = event.target.attributes['y2'];\n\n        if (x2 != null && y2 != null) {\n          parentOffsetX = parseInt(x2.value);\n          parentOffsetY = parseInt(y2.value);\n        }\n      }\n    } else {\n      // the target is something else\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        var matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    }\n\n    /*\n     * add the parent offset values to the relative offset values to obtain\n     * the x and y values relative to the upper left corner of the svg\n     */\n    var x = parentOffsetX + offsetX;\n    var y = parentOffsetY + offsetY;\n\n    var returnObject = {}\n    returnObject.x = x;\n    returnObject.y = y;\n\n    return returnObject;\n  }\n\n  /**\n   * Called when the student clicks down on a node in the left node bar\n   * @param $event the mouse down event\n   * @param node the node the student clicked down on\n   */\n  selectNode($event, node) {\n\n    // remember the selected node\n    this.selectedNode = node;\n\n    /*\n     * remember the offset of the mouse relative to the upper left of the\n     * node's image so that we properly calculate the node position when\n     * the student releases the mouse to put the node in the svg\n     */\n    this.tempOffsetX = $event.offsetX;\n    this.tempOffsetY = $event.offsetY;\n  }\n\n  /**\n   * The student has dropped a new node on the svg\n   * @param event the drop event\n   */\n  newNodeDropped(event) {\n\n    // get the selected node\n    var selectedNode = this.selectedNode;\n\n    if (selectedNode != null) {\n      // get the file name\n      var filePath = selectedNode.fileName;\n\n      // get the node name\n      var label = selectedNode.label;\n\n      // get the width and height of the node\n      var width = selectedNode.width;\n      var height = selectedNode.height;\n\n      // get the original authored id\n      var originalId = selectedNode.id;\n\n      // get the coordinates relative to the svg element\n      var coordinates = this.getRelativeCoordinatesByEvent(event);\n\n      // get the position we should drop the node at\n      var x = coordinates.x - this.tempOffsetX;\n      var y = coordinates.y - this.tempOffsetY;\n\n      // get a new ConceptMapNodeId e.g. 'studentNode3'\n      var newConceptMapNodeId = this.getNewConceptMapNodeId();\n\n      // create a ConceptMapNode\n      var conceptMapNode = this.ConceptMapService.newConceptMapNode(this.draw, newConceptMapNodeId, originalId, filePath, label, x, y, width, height);\n\n      // add the node to our array of nodes\n      this.addNode(conceptMapNode);\n\n      // set the mouse events on the node\n      this.setNodeMouseEvents(conceptMapNode);\n\n      // make the node highlighted\n      this.setHighlightedElement(conceptMapNode);\n\n      // handle the student data changing\n      this.studentDataChanged();\n    }\n\n    // enable node dragging\n    this.enableNodeDragging();\n  }\n\n  /**\n   * Get a new ConceptMapNode id that isn't being used\n   * @returns a new ConceptMapNode id e.g. 'studentNode3'\n   */\n  getNewConceptMapNodeId() {\n\n    var nextAvailableNodeIdNumber = 1;\n\n    // array to remember the numbers that have been used in node ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.nodes.length; x++) {\n      var node = this.nodes[x];\n\n      if (node != null) {\n\n        // get the node id\n        var nodeId = node.getId();\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('studentNode', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableNodeIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'studentNode' + nextAvailableNodeIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Get a new ConceptMapLink id that isn't being used\n   * @returns a new ConceptMapLink id e.g. 'studentLink3'\n   */\n  getNewConceptMapLinkId() {\n\n    var nextAvailableLinkIdNumber = 1;\n\n    // array to remember the numbers that have been used in link ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.links.length; x++) {\n      var link = this.links[x];\n\n      if (link != null) {\n\n        // get the node id\n        var linkId = link.getId();\n\n        if (linkId != null) {\n\n          // get the number from the link id\n          var linkIdNumber = parseInt(linkId.replace('studentLink', ''));\n\n          if (linkIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(linkIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableLinkIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'studentLink' + nextAvailableLinkIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Set the mouse events on a newly created node\n   * @param conceptMapNode the node\n   */\n  setNodeMouseEvents(conceptMapNode) {\n\n    // set the node mouse over event\n    conceptMapNode.setNodeMouseOver((event) => {\n      this.nodeMouseOver(event);\n    });\n\n    // set the node mouse out event\n    conceptMapNode.setNodeMouseOut((event) => {\n      this.nodeMouseOut(event);\n    });\n\n    // set the connector mouse down event\n    conceptMapNode.setConnectorMouseDown((event) => {\n      this.disableNodeDragging();\n      this.connectorMouseDown(event);\n    });\n\n    // set the node mouse down event\n    conceptMapNode.setNodeMouseDown((event) => {\n      this.nodeMouseDown(event);\n    });\n\n    // set the node mouse up event\n    conceptMapNode.setNodeMouseUp((event) => {\n      this.nodeMouseUp(event);\n    });\n\n    // set the delete button mouse down event\n    conceptMapNode.setDeleteButtonMouseDown((event) => {\n      this.nodeDeleteButtonMouseDown(event);\n    });\n\n    // set the delete button mouse over event\n    conceptMapNode.setDeleteButtonMouseOver((event) => {\n      this.nodeDeleteButtonMouseOver(event);\n    });\n\n    // set the delete button mouse out event\n    conceptMapNode.setDeleteButtonMouseOut((event) => {\n      this.nodeDeleteButtonMouseOut(event);\n    });\n\n    // set node drag move event\n    conceptMapNode.setDragMove((event) => {\n      this.nodeDragMove(event);\n    });\n  }\n\n  /**\n   * Set an element to be highlighted. The element can be a node or a link.\n   * @param element a node or link\n   */\n  setHighlightedElement(element) {\n\n    // remove highlighting from any existing element\n    this.clearHighlightedElement();\n\n    // hide the link type chooser\n    this.hideLinkTypeChooser();\n\n    if (element != null) {\n\n      // remember the highlighted element\n      this.highlightedElement = element;\n\n      // set the higlighted value to true for the element\n      element.isHighlighted(true);\n\n      // show the delete button for the element\n      element.showDeleteButton();\n\n      if(element.constructor.name == 'ConceptMapNode') {\n        // the element is a node\n\n        // show the border\n        element.showBorder();\n      } else if (element.constructor.name == 'ConceptMapLink') {\n        // the element is a link\n\n        // show the link type chooser\n        this.showLinkTypeChooser();\n\n        // select the link type that was previously chosen for the link\n        this.selectedLinkType = element.getOriginalId();\n      }\n    }\n  }\n\n  /**\n   * If an element is highlighted, make it no longer highlighted.\n   */\n  clearHighlightedElement() {\n\n    if (this.highlightedElement != null) {\n\n      if(this.highlightedElement.constructor.name == 'ConceptMapNode') {\n        // the highlighted element is a node\n\n        // hide the border\n        this.highlightedElement.hideBorder();\n      } else if (this.highlightedElement.constructor.name == 'ConceptMapLink') {\n        // the element is a link\n\n        // hide the link type chooser\n        this.hideLinkTypeChooser();\n      }\n\n      // set the higlighted value to false for the element\n      this.highlightedElement.isHighlighted(false);\n\n      // hide the delete button\n      this.highlightedElement.hideDeleteButton();\n\n      // clear the highlighted element reference\n      this.highlightedElement = null;\n    }\n  }\n\n  /**\n   * Enable node dragging\n   */\n  enableNodeDragging() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get the node group\n        var group = node.getGroup();\n\n        if (group != null) {\n\n          /*\n           * get the bounds that we will allow the node group to\n           * dragged in\n           */\n          var options = {\n            minX: 0,\n            minY: 0,\n            maxX: this.width,\n            maxY: this.height\n          };\n\n          // make the node group draggable\n          group.draggable(options);\n        }\n      }\n    }\n  }\n\n  /**\n   * Disable node dragging. This will be called when the student creates a\n   * link so that they aren't dragging nodes around at the same time as\n   * creating a link.\n   */\n  disableNodeDragging() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get a node group\n        var group = node.getGroup();\n\n        if (group != null) {\n          // make the group not draggable\n          group.draggable(false);\n        }\n      }\n    }\n  }\n\n  /**\n   * Move the link text group to the front\n   */\n  moveLinkTextToFront() {\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var link = this.links[l];\n\n      if (link != null) {\n        // move the link text group to the front\n        link.moveTextGroupToFront();\n      }\n    }\n  }\n\n  /**\n   * Move the nodes to the front so that they show up above links\n   */\n  moveNodesToFront() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get a node group\n        var group = node.getGroup();\n\n        if (group != null) {\n          // move the node group to the front\n          group.front();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a node to our array of nodes\n   * @param node the node to add\n   */\n  addNode(node) {\n    if (node != null) {\n      this.nodes.push(node);\n    }\n  }\n\n  /**\n   * Remove a node from the svg and our array of nodes\n   * @param node the node to remove\n   */\n  removeNode(node) {\n\n    if (node != null) {\n\n      // get the outgoing links from the node\n      var outgoingLinks = node.getOutgoingLinks();\n\n      if (outgoingLinks != null) {\n\n        // get the number of outgoing links\n        var numOutgoingLinks = outgoingLinks.length;\n\n        // loop until we have removed all the outgoing links\n        while (numOutgoingLinks > 0) {\n          // get an outgoing link\n          var outgoingLink = outgoingLinks[0];\n\n          // remove the link from the svg and from our array of links\n          this.removeLink(outgoingLink);\n\n          // decrement the number of outgoing links counter\n          numOutgoingLinks--;\n        }\n      }\n\n      // get the incoming links to the node\n      var incomingLinks = node.getIncomingLinks();\n\n      if (incomingLinks != null) {\n\n        // get the number of incoming links\n        var numIncomingLinks = incomingLinks.length;\n\n        // loop until we have removed all the incoming links\n        while (numIncomingLinks > 0) {\n          // get an incoming link\n          var incomingLink = incomingLinks[0];\n\n          // remove the link from the svg and from our array of links\n          this.removeLink(incomingLink);\n\n          // decrement the number of incoming links counter\n          numIncomingLinks--;\n        }\n      }\n\n      // remove the node from the svg\n      node.remove();\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n\n        if (tempNode == node) {\n          // we have found the node we want to remove\n          this.nodes.splice(n, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove all nodes from the svg and our array of nodes\n   */\n  removeAllNodes() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var tempNode = this.nodes[n];\n\n      // remove the node from the svg\n      tempNode.remove();\n    }\n\n    // clear the nodes array\n    this.nodes = [];\n  }\n\n  /**\n   * Get a node by id.\n   * @param id the node id\n   * @returns the node with the given id or null\n   */\n  getNodeById(id) {\n    var node = null;\n\n    if (id != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeId = tempNode.getId();\n\n        if (id == tempNodeId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Get a node by id.\n   * @param groupId the svg group id\n   * @returns the node with the given id or null\n   */\n  getNodeByGroupId(groupId) {\n    var node = null;\n\n    if (groupId != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeGroupId = tempNode.getGroupId();\n\n        if (groupId == tempNodeGroupId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Get a link by id.\n   * @param id the link id\n   * @returns the link with the given id or null\n   */\n  getLinkById(id) {\n    var link = null;\n\n    if (id != null) {\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n        var tempLinkId = tempLink.getId();\n\n        if (groupId == tempLinkId) {\n          // we have found the link we want\n          link = tempLink;\n          break;\n        }\n      }\n    }\n\n    return link;\n  }\n\n  /**\n   * Get a link by group id.\n   * @param groupId the svg group id\n   * @returns the link with the given group id or null\n   */\n  getLinkByGroupId(groupId) {\n    var link = null;\n\n    if (groupId != null) {\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n        var tempLinkGroupId = tempLink.getGroupId();\n\n        if (groupId == tempLinkGroupId) {\n          // we have found the link we want\n          link = tempLink;\n          break;\n        }\n      }\n    }\n\n    return link;\n  }\n\n  /**\n   * Get a node by its connector id.\n   * @param connectorId the svg circle id of the connector\n   * @returns the node with the associated connector or null\n   */\n  getNodeByConnectorId(connectorId) {\n    var node = null;\n\n    if (connectorId != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n\n        // get the connector id\n        var tempConnectorId = tempNode.getConnectorId();\n\n        if (connectorId == tempConnectorId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Remove a node by id. The id of a node is the same as its svg group id.\n   * @param groupId\n   */\n  removeNodeById(groupId) {\n    if (groupId != null) {\n\n      // loop through all the nodse\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeId = tempNode.getId();\n\n        if (groupId == tempNodeId) {\n          // we have found the node we want to remove\n          this.nodes.splice(n, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a link to our array of links\n   * @param link the link to add\n   */\n  addLink(link) {\n    if (link != null) {\n      this.links.push(link);\n    }\n  }\n\n  /**\n   * Remove a link from the svg and our array of links\n   * @param link the link to remove\n   */\n  removeLink(link) {\n\n    if (link != null) {\n\n      // remove the link from the svg\n      link.remove();\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n\n        if (link == tempLink) {\n          // we have found the link we want to remove\n          this.links.splice(l, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove all the links from the svg and from our array of links\n   */\n  removeAllLinks() {\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var tempLink = this.links[l];\n\n      // remove the link from the svg\n      tempLink.remove();\n    }\n\n    // clear the links array\n    this.links = [];\n  }\n\n  /**\n   * Called when the mouse moves over a node\n   * @param event the mouse over event\n   */\n  nodeMouseOver(event) {\n\n    // get the node group id\n    var groupId = event.target.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        /*\n         * make the node active so that the border and delete button\n         * shows\n         */\n        this.setActiveNode(node);\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a node\n   * @param event the mouse out event\n   */\n  nodeMouseOut(event) {\n\n    // get the group id of the node\n    var groupId = event.target.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        // make the node inactive by clearing the active node\n        this.clearActiveNode();\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on a node\n   * @param event the mouse down event\n   */\n  nodeMouseDown(event) {\n\n    if (event.target.parentElement != null) {\n\n      // get the group id of the node\n      var groupId = event.target.parentElement.id;\n\n      if (groupId != null) {\n\n        // get the node\n        var node = this.getNodeByGroupId(groupId);\n\n        if (node != null) {\n          // make the node highlighted\n          this.setHighlightedElement(node);\n        }\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is released on a node\n   * @param event the mouse up event\n   */\n  nodeMouseUp(event) {\n\n    if (this.drawingLink && this.activeLink != null) {\n      /*\n       * the student is creating a link and has just released the mouse\n       * over a node to connect the destination node of the link\n       */\n\n      // get the group id of the node\n      var groupId = event.target.parentElement.id;\n\n      if (groupId != null) {\n\n        // get the node\n        var node = this.getNodeByGroupId(groupId);\n\n        if (node != null) {\n\n          // get the source node of the link\n          var sourceNode = this.activeLink.sourceNode;\n          var sourceNodeGroupId = sourceNode.getGroupId();\n\n          if (sourceNodeGroupId == groupId) {\n            /*\n             * if the source of the link is the same as the\n             * destination node, we will not connect the link\n             */\n            this.activeLink.remove();\n            this.activeLink = null;\n          } else {\n            /*\n             * the source node is different than the destination\n             * node so we will connect the link\n             */\n\n            // set the destination node of the link\n            this.activeLink.setDestination(node);\n\n            // make the link the active link\n            this.addLink(this.activeLink);\n\n            // highlight the link\n            this.setHighlightedElement(this.activeLink);\n\n            /*\n             * set the link as a newly created link so that if the\n             * student clicks the cancel button, we will remove\n             * the link\n             */\n            this.newlyCreatedLink = this.activeLink;\n\n            // display the modal overlay\n            this.displayLinkTypeChooserModalOverlay = true;\n\n            // handle the student data changing\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n\n    // the link has been connected so we are no longer drawing the link\n    this.drawingLink = false;\n  }\n\n  /**\n   * Called when a link delete button is clicked\n   * @param event the mouse click event\n   * @param link the link to delete\n   */\n  linkDeleteButtonClicked(event, link) {\n\n    if (link != null) {\n\n      // remove the link from our array of links\n      this.removeLink(link);\n\n      // handle the student data changing\n      this.studentDataChanged();\n    }\n\n    // hide the link type chooser\n    this.hideLinkTypeChooser();\n  }\n\n  /**\n   * Called when the mouse is clicked down on a connector. This will start\n   * creating a link.\n   * @param event the mouse down event\n   */\n  connectorMouseDown(event) {\n\n    // set the flag that we are drawing a link\n    this.drawingLink = true;\n\n    // get the connector (the svg circle)\n    var connector = event.target;\n\n    /*\n     * disable node dragging so that the node isn't dragged when the\n     * link head is being dragged\n     */\n    this.disableNodeDragging();\n\n    // get the node\n    var node = this.getNodeByConnectorId(connector.id);\n\n    // get the center of the image\n    var x = node.cx();\n    var y = node.cy();\n\n    // get a new ConceptMapLinkId e.g. 'studentLink3'\n    var newConceptMapLinkId = this.getNewConceptMapLinkId();\n\n    /*\n     * we will not know what the original id is until the student has\n     * selected a link type\n     */\n    var originalId = null;\n\n    // create a link that comes out of the node\n    var link = this.ConceptMapService.newConceptMapLink(this.draw, newConceptMapLinkId, originalId, node);\n\n    // set the link mouse events\n    this.setLinkMouseEvents(link);\n\n    // remember the active link\n    this.activeLink = link;\n\n    // flag for determining if we have set the link curvature\n    this.linkCurvatureSet = false;\n\n    // remember the location of the center of the connector\n    this.activeLinkStartX = node.connectorCX();\n    this.activeLinkStartY = node.connectorCY();\n\n    // highlight the link\n    this.setHighlightedElement(link);\n\n    // clear the active node\n    this.clearActiveNode();\n\n    // make the source node the active node\n    this.setActiveNode(node);\n  }\n\n  /**\n   * Set the link mouse events for a link\n   * @param link the ConceptMapLink\n   */\n  setLinkMouseEvents(link) {\n\n    // set the link mouse down listener\n    link.setLinkMouseDown((event) => {\n      this.linkMouseDown(event);\n    });\n\n    // set the link text mouse down listener\n    link.setLinkTextMouseDown((event) => {\n      this.linkTextMouseDown(event);\n    });\n\n    // set the link mouse over listener\n    link.setLinkMouseOver((event) => {\n      this.linkMouseOver(event);\n    });\n\n    // set the link mouse out listener\n    link.setLinkMouseOut((event) => {\n      this.linkMouseOut(event);\n    });\n\n    // set the delete button clicked event for the link\n    link.setDeleteButtonClicked((event) => {\n      this.linkDeleteButtonClicked(event, link);\n    });\n  }\n\n  /**\n   * Called when the mouse is clicked down on a link\n   * @param event the mouse down event\n   */\n  linkMouseDown(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    if (link != null) {\n      // make the link highlighted\n      this.setHighlightedElement(link);\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on a link text\n   * @param event the mouse down event\n   */\n  linkTextMouseDown(event) {\n\n    var linkGroupId = null;\n\n    /*\n     * the link group id is set into the text group in the linkGroupId\n     * variable. the text group hierarchy looks like this\n     * text group > text > tspan\n     * text group > rect\n     */\n    if (event.target.nodeName == 'tspan') {\n      linkGroupId = event.target.parentElement.parentElement.linkGroupId;\n    } else if (event.target.nodeName == 'text') {\n      linkGroupId = event.target.parentElement.linkGroupId;\n    } else if (event.target.nodeName == 'rect') {\n      linkGroupId = event.target.parentElement.linkGroupId;\n    }\n\n    if (linkGroupId != null) {\n\n      // get the link\n      var link = this.getLinkByGroupId(linkGroupId);\n\n      if (link != null) {\n        // make the link highlighted\n        this.setHighlightedElement(link);\n      }\n    }\n\n  }\n\n  /**\n   * Called when the mouse is over a link\n   * @param event the mouse over event\n   */\n  linkMouseOver(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    if (link != null) {\n      // show the delete button for the link\n      link.showDeleteButton();\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a link\n   * @param event the mouse out event\n   */\n  linkMouseOut(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    // hide the delete button if the link is not the highlighted link\n    if (link != null && link != this.highlightedElement) {\n      link.hideDeleteButton();\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on the delete button of a node\n   * @param event the mouse down event\n   */\n  nodeDeleteButtonMouseDown(event) {\n\n    if (event.target.parentElement != null) {\n\n      // get the group id\n      var groupId = event.target.parentElement.parentElement.id;\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n\n        // remove the node from our array of nodes\n        this.removeNode(node);\n\n        // handle the student data changing\n        this.studentDataChanged();\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is over a node delete button\n   * @param event the mouse over event\n   */\n  nodeDeleteButtonMouseOver(event) {\n\n    // get the node group id\n    var groupId = event.target.parentElement.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        /*\n         * make the node active so that the border and delete button\n         * shows\n         */\n        this.setActiveNode(node);\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a node delete button\n   * @param event the mouse over event\n   */\n  nodeDeleteButtonMouseOut(event) {\n\n    // get the group id\n    var groupId = event.target.parentElement.parentElement.id;\n\n    // get the node\n    var node = this.getNodeByGroupId(groupId);\n\n    if (node != null) {\n      // make the node inactive by clearing the active node\n      this.clearActiveNode(node);\n    }\n  }\n\n  /**\n   * Called when the node is dragged\n   * @param event the drag event\n   */\n  nodeDragMove(event) {\n\n    // get the group id\n    var groupId = event.target.id;\n\n    // get the node\n    var node = this.getNodeByGroupId(groupId);\n\n    if (node != null) {\n      // handle the node being dragged\n      node.dragMove(event);\n    }\n\n    // handle the student data changing\n    this.studentDataChanged();\n  }\n\n  /**\n   * Get the group id of an element. All elements of a node or link are\n   * contained in a group. These groups are the children of the main svg\n   * element.\n   * for example a node's image element will be located here\n   * svg > group > image\n   * for example a link's path element will be located here\n   * svg > group > path\n   *\n   * @param element get the group id of this element\n   * @returns the group id\n   */\n  getGroupId(element) {\n\n    var groupId = null;\n    var currentElement = element;\n    var previousId = null;\n\n    // loop until we have reached the svg element\n    while (currentElement != null) {\n\n      if (currentElement.tagName == 'svg') {\n        // base case. we have found the svg element.\n\n        // the group id will be the previous id we saw\n        groupId = previousId;\n\n        // set the current element to null so that the while loop ends\n        currentElement = null;\n      } else {\n        // remember the element id\n        previousId = currentElement.id;\n\n        /*\n         * set the current element to the parent to continue searching\n         * up the hierarchy\n         */\n        currentElement = currentElement.parentElement;\n      }\n    }\n\n    return groupId;\n  }\n\n  /**\n   * Save the starter concept map\n   */\n  saveStarterConceptMap() {\n\n    let answer = confirm(this.$translate('conceptMap.areYouSureYouWantToSaveTheStarterConceptMap'));\n\n    if (answer) {\n      // get the concept map data\n      var conceptMapData = this.getConceptMapData();\n\n      // set the starter concept map data\n      this.authoringComponentContent.starterConceptMap = conceptMapData;\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Delete the starter concept map\n   */\n  deleteStarterConceptMap() {\n\n    let answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteTheStarterConceptMap'));\n\n    if (answer) {\n      // set the starter concept map data\n      this.authoringComponentContent.starterConceptMap = null;\n\n      // clear the concept map\n      this.clearConceptMap();\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Remove all the links and nodes\n   */\n  clearConceptMap() {\n\n    // remove all the links from the svg and the array of links\n    this.removeAllLinks();\n\n    // remove all the nodes from the svg and the array of nodes\n    this.removeAllNodes();\n  }\n\n  /**\n   * Reset the concept map data. We will clear the concept map data and\n   * if there is starter concept map data we will set it into the concept map.\n   */\n  resetConceptMap() {\n\n    // ask the student if they are sure they want to reset their work\n    var message = this.$translate('conceptMap.areYouSureYouWantToResetYourWork');\n    var answer = confirm(message);\n\n    if (answer) {\n      // the student answered yes to reset their work\n\n      // clear the concept map\n      this.clearConceptMap();\n\n      if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (this.componentContent.starterConceptMap != null) {\n\n        // get the starter concept map\n        var conceptMapData = this.componentContent.starterConceptMap;\n\n        // populate the starter concept map data into the component\n        this.populateConceptMapData(conceptMapData);\n      }\n    }\n  }\n\n  /**\n   * Show the auto feedback that was generated when the student previously\n   * clicked \"Check Answer\".\n   */\n  showAutoFeedback() {\n\n    // show the auto feedback in a modal dialog\n    this.$mdDialog.show(\n      this.$mdDialog.alert()\n      .parent(angular.element(document.querySelector('#' + this.feedbackContainerId)))\n      .clickOutsideToClose(true)\n      .title(this.$translate('FEEDBACK'))\n      .htmlContent(this.autoFeedbackString)\n      .ariaLabel(this.$translate('FEEDBACK'))\n      .ok(this.$translate('CLOSE'))\n    );\n  }\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * The import previous work checkbox was clicked\n   */\n  authoringImportPreviousWorkClicked() {\n\n    if (!this.authoringComponentContent.importPreviousWork) {\n      /*\n       * import previous work has been turned off so we will clear the\n       * import previous work node id, and import previous work\n       * component id\n       */\n      this.authoringComponentContent.importPreviousWorkNodeId = null;\n      this.authoringComponentContent.importPreviousWorkComponentId = null;\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The import previous work node id has changed\n   */\n  authoringImportPreviousWorkNodeIdChanged() {\n\n    if (this.authoringComponentContent.importPreviousWorkNodeId == null ||\n      this.authoringComponentContent.importPreviousWorkNodeId == '') {\n\n      /*\n       * the import previous work node id is null so we will also set the\n       * import previous component id to null\n       */\n      this.authoringComponentContent.importPreviousWorkComponentId = '';\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The import previous work component id has changed\n   */\n  authoringImportPreviousWorkComponentIdChanged() {\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The authoring view show save button checkbox was clicked\n   */\n  authoringViewShowSaveButtonClicked() {\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The authoring view show submit button checkbox was clicked\n   */\n  authoringViewShowSubmitButtonClicked() {\n\n    if (!this.authoringComponentContent.showSubmitButton) {\n      /*\n       * we are not showing the submit button to the student so\n       * we will clear the max submit count\n       */\n      this.authoringComponentContent.maxSubmitCount = null;\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose the background image\n   */\n  chooseBackgroundImage() {\n\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = 'background';\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose an image for the node\n   * @param conceptMapNodeId the id of the node in the concept map\n   */\n  chooseNodeImage(conceptMapNodeId) {\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = conceptMapNodeId;\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n\n  /**\n   * Check whether we need to show the snip button\n   * @return whether to show the snip button\n   */\n  showSnipButton() {\n    if (this.NotebookService.isNotebookEnabled() && this.isSnipButtonVisible) {\n      return true;\n    } else {\n      return false;\n    }\n  }\n\n  /**\n   * Snip the concept map by converting it to an image\n   * @param $event the click event\n   */\n  snip($event) {\n    // get the svg element. this will obtain an array.\n    var svgElement = angular.element('#svg_' + this.nodeId + '_' + this.componentId);\n\n    if (svgElement != null && svgElement.length > 0) {\n      // get the svg element\n      svgElement = svgElement[0];\n\n      // get the svg element as a string\n      var serializer = new XMLSerializer();\n      var svgString = serializer.serializeToString(svgElement);\n\n      // find all the images in the svg and replace them with Base64 images\n      this.ConceptMapService.getHrefToBase64ImageReplacements(svgString).then((images) => {\n\n        /*\n         * Loop through all the image objects. Each object contains\n         * an image href and a Base64 image.\n         */\n        for (var i = 0; i < images.length; i++) {\n\n          // get an image object\n          var imagePair = images[i];\n\n          // get the image href e.g. /wise/curriculum/25/assets/Sun.png\n          var imageHref = imagePair.imageHref;\n\n          // get the Base64 image\n          var base64Image = imagePair.base64Image;\n\n          // create a regex to match the image href\n          var imageRegEx = new RegExp(imageHref, 'g');\n\n          /*\n           * replace all the instances of the image href with the\n           * Base64 image\n           */\n          svgString = svgString.replace(imageRegEx, base64Image);\n        }\n\n        // create a canvas to draw the image on\n        var myCanvas = document.createElement('canvas');\n        var ctx = myCanvas.getContext('2d');\n\n        // create an svg blob\n        var svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n        var domURL = self.URL || self.webkitURL || self;\n        var url = domURL.createObjectURL(svg);\n        var image = new Image();\n\n        /*\n         * set the UtilService in a local variable so we can access it\n         * in the onload callback function\n         */\n        var thisUtilService = this.UtilService;\n\n        // the function that is called after the image is fully loaded\n        image.onload = (event) => {\n\n          // get the image that was loaded\n          var image = event.target;\n\n          // set the dimensions of the canvas\n          myCanvas.width = image.width;\n          myCanvas.height = image.height;\n          ctx.drawImage(image, 0, 0);\n\n          // get the canvas as a Base64 string\n          var base64Image = myCanvas.toDataURL('image/png');\n\n          // get the image object\n          var imageObject = thisUtilService.getImageObjectFromBase64String(base64Image, false);\n\n          // create a notebook item with the image populated into it\n          this.NotebookService.addNote($event, imageObject);\n        };\n\n        // set the src of the image so that the image gets loaded\n        image.src = url;\n      });\n    }\n  }\n\n  /**\n   * Add a connected component\n   */\n  addConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.updateOn = 'change';\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  deleteConnectedComponent(index) {\n\n    if (this.authoringComponentContent.connectedComponents != null) {\n      this.authoringComponentContent.connectedComponents.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Set the show submit button value\n   * @param show whether to show the submit button\n   */\n  setShowSubmitButtonValue(show) {\n\n    if (show == null || show == false) {\n      // we are hiding the submit button\n      this.authoringComponentContent.showSaveButton = false;\n      this.authoringComponentContent.showSubmitButton = false;\n    } else {\n      // we are showing the submit button\n      this.authoringComponentContent.showSaveButton = true;\n      this.authoringComponentContent.showSubmitButton = true;\n    }\n\n    /*\n     * notify the parent node that this component is changing its\n     * showSubmitButton value so that it can show save buttons on the\n     * step or sibling components accordingly\n     */\n    this.$scope.$emit('componentShowSubmitButtonValueChanged', {nodeId: this.nodeId, componentId: this.componentId, showSubmitButton: show});\n  }\n\n  /**\n   * The showSubmitButton value has changed\n   */\n  showSubmitButtonValueChanged() {\n\n    /*\n     * perform additional processing for when we change the showSubmitButton\n     * value\n     */\n    this.setShowSubmitButtonValue(this.authoringComponentContent.showSubmitButton);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      let mergedNodes = [];\n      let mergedLinks = [];\n      let backgroundPath = null;\n      let stretchBackground = null;\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n\n        if (componentState.componentType == 'ConceptMap') {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            let conceptMapData = studentData.conceptMapData;\n\n            if (conceptMapData != null) {\n              if (conceptMapData.nodes != null) {\n                // add the nodes to our merged nodes\n                mergedNodes = mergedNodes.concat(conceptMapData.nodes);\n              }\n\n              if (conceptMapData.links != null) {\n                // add the links to our merged links\n                mergedLinks = mergedLinks.concat(conceptMapData.links);\n              }\n\n              if (conceptMapData.backgroundPath != null &&\n                  conceptMapData.backgroundPath != '') {\n                backgroundPath = conceptMapData.backgroundPath;\n                stretchBackground = conceptMapData.stretchBackground;\n              }\n            }\n          }\n        } else if (componentState.componentType == 'Draw' ||\n            componentState.componentType == 'Embedded' ||\n            componentState.componentType == 'Graph' ||\n            componentState.componentType == 'Label' ||\n            componentState.componentType == 'Table') {\n          let connectedComponent =\n              this.UtilService.getConnectedComponentByComponentState(this.componentContent, componentState);\n          if (connectedComponent.importWorkAsBackground === true) {\n            this.setComponentStateAsBackgroundImage(componentState);\n          }\n        }\n      }\n\n      if (this.componentContent.background != null &&\n          this.componentContent.background != '') {\n        // use the background from this component\n        backgroundPath = this.componentContent.background;\n        if (this.componentContent.stretchBackground) {\n          stretchBackground = this.componentContent.stretchBackground;\n        }\n      }\n\n      // set the merged nodes and links into the merged component state\n      mergedComponentState.studentData = {};\n      mergedComponentState.studentData.conceptMapData = {};\n      mergedComponentState.studentData.conceptMapData.nodes = mergedNodes;\n      mergedComponentState.studentData.conceptMapData.links = mergedLinks;\n      mergedComponentState.studentData.conceptMapData.backgroundPath = backgroundPath;\n      if (stretchBackground != null) {\n        mergedComponentState.studentData.conceptMapData.stretchBackground = stretchBackground;\n      }\n    }\n\n    /*\n     * inject the asset path so that the file name is changed to\n     * a relative path\n     * e.g.\n     * \"Sun.png\"\n     * will be changed to\n     * \"/wise/curriculum/108/assets/Sun.png\"\n     */\n    mergedComponentState = this.ProjectService.injectAssetPaths(mergedComponentState);\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Create an image from a component state and set the image as the background.\n   * @param componentState A component state.\n   */\n  setComponentStateAsBackgroundImage(componentState) {\n    this.UtilService.generateImageFromComponentState(componentState).then((image) => {\n      this.setBackgroundImage(image.url);\n    });\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'importWork';\n          this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      delete connectedComponent.importWorkAsBackground;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n      this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * If the component type is a certain type, we will set the importWorkAsBackground\n   * field to true.\n   * @param connectedComponent The connected component object.\n   */\n  authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent) {\n    let componentType = this.authoringGetConnectedComponentType(connectedComponent);\n    if (componentType == 'Draw' ||\n        componentType == 'Embedded' ||\n        componentType == 'Graph' ||\n        componentType == 'Label' ||\n        componentType == 'Table') {\n      connectedComponent.importWorkAsBackground = true;\n    } else {\n      delete connectedComponent.importWorkAsBackground;\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Set the background image on the svg canvas\n   * @param backgroundPath the absolute path to the background image\n   * @param stretchBackground whether to stretch the background to cover the\n   * whole svg background\n   */\n  setBackgroundImage(backgroundPath, stretchBackground) {\n    this.background = backgroundPath;\n    this.stretchBackground = stretchBackground;\n\n    if (stretchBackground) {\n      // stretch the background to fit the whole svg element\n      this.backgroundSize = '100% 100%';\n    } else {\n      // use the original dimensions of the background image\n      this.backgroundSize = '';\n    }\n  }\n\n  /**\n   * The show JSON button was clicked to show or hide the JSON authoring\n   */\n  showJSONButtonClicked() {\n    // toggle the JSON authoring textarea\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n\n    if (this.jsonStringChanged && !this.showJSONAuthoring) {\n      /*\n       * the author has changed the JSON and has just closed the JSON\n       * authoring view so we will save the component\n       */\n      this.advancedAuthoringViewComponentChanged();\n\n      // scroll to the top of the component\n      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });\n\n      this.jsonStringChanged = false;\n    }\n  }\n\n  /**\n   * The author has changed the JSON manually in the advanced view\n   */\n  authoringJSONChanged() {\n    this.jsonStringChanged = true;\n  }\n\n  /**\n   * The \"Import Work As Background\" checkbox was clicked.\n   * @param connectedComponent The connected component associated with the\n   * checkbox.\n   */\n  authoringImportWorkAsBackgroundClicked(connectedComponent) {\n    if (!connectedComponent.importWorkAsBackground) {\n      delete connectedComponent.importWorkAsBackground;\n    }\n    this.authoringViewComponentChanged();\n  }\n};\n\nConceptMapController.$inject = [\n  '$anchorScroll',\n  '$filter',\n  '$injector',\n  '$location',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$scope',\n  '$timeout',\n  'AnnotationService',\n  'ConceptMapService',\n  'ConfigService',\n  'CRaterService',\n  'NodeService',\n  'NotebookService',\n  'ProjectService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default ConceptMapController;\n"]}
-=======
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strict';\n\nimport 'svg.js';\nimport 'svg.draggable.js';\n\nclass ConceptMapController {\n\n  constructor($anchorScroll,\n      $filter,\n      $injector,\n      $location,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      $timeout,\n      AnnotationService,\n      ConceptMapService,\n      ConfigService,\n      CRaterService,\n      NodeService,\n      NotebookService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$location = $location;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$timeout = $timeout;\n    this.AnnotationService = AnnotationService;\n    this.ConceptMapService = ConceptMapService;\n    this.ConfigService = ConfigService;\n    this.CRaterService = CRaterService;\n    this.NodeService = NodeService;\n    this.NotebookService = NotebookService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.idToOrder = this.ProjectService.idToOrder;\n\n    this.$translate = this.$filter('translate');\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // holds the text that the student has typed\n    this.studentResponse = '';\n\n    // holds student attachments like assets\n    this.attachments = [];\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether the student work has changed since last submit\n    this.isSubmitDirty = false;\n\n    // message to show next to save/submit buttons\n    this.saveMessage = {\n      text: '',\n      time: ''\n    };\n\n    // whether this component is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // whether rich text editing is enabled\n    this.isRichTextEnabled = false;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // whether the prompt is shown or not\n    this.isPromptVisible = true;\n\n    // whether the save button is shown or not\n    this.isSaveButtonVisible = false;\n\n    // whether the submit button is shown or not\n    this.isSubmitButtonVisible = false;\n\n    // whether the submit button is disabled\n    this.isSubmitButtonDisabled = false;\n\n    // whether the snip table button is shown or not\n    this.isSnipButtonVisible = true;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // the latest annotations\n    this.latestAnnotations = null;\n\n    // used to hold a message dialog if we need to use one\n    this.messageDialog = null;\n\n    // default width and height for the svg\n    this.width = 800;\n    this.height = 600;\n\n    // the available nodes the students can choose\n    this.availableNodes = [];\n\n    // the available links the students can choose\n    this.availableLinks = [];\n\n    // the node instances the students create\n    this.nodes = [];\n\n    // the link instances the students create\n    this.links = [];\n\n    // flag to display the link type chooser\n    this.displayLinkTypeChooser = false;\n\n    // flag to display the modal overlay for the link type chooser\n    this.displayLinkTypeChooserModalOverlay = false;\n\n    // the selected link type\n    this.selectedLinkType = null;\n\n    // flag for whether we have initialized the link type modal overlay\n    this.initializedDisplayLinkTypeChooserModalOverlay = false;\n\n    // default values for the modal width and height\n    this.modalWidth = 800;\n    this.modalHeight = 600;\n\n    /*\n     * used to remember the node the student has started dragging to create\n     * so that we know what node to create once they let go off the mouse\n     * on the svg element\n     */\n    this.selectedNode = null;\n\n    /*\n     * used to remember the offset of the mouse relative to the upper left\n     * of the node image the student started dragging to create a new node\n     * instance\n     */\n    this.tempOffsetX = 0;\n    this.tempOffsetY = 0;\n\n    let themePath = this.ProjectService.getThemePath();\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      { type: 'ConceptMap' },\n      { type: 'Draw' },\n      { type: 'Embedded' },\n      { type: 'Graph' },\n      { type: 'Label' },\n      { type: 'Table' }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    // the options for authoring the should or should not value in rules\n    this.shouldOptions = [\n      {\n        value: false, label: this.$translate('conceptMap.should')\n      },\n      {\n        value: true, label: this.$translate('conceptMap.shouldNot')\n      }\n    ];\n\n    // the auto feedback string\n    this.autoFeedbackString = '';\n\n    // counter to keep track of the number of submits\n    this.submitCounter = 0;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n      this.setBackgroundImage(this.componentContent.background,\n                  this.componentContent.stretchBackground);\n\n      // set the id of the svg and other display elements\n      this.svgId = 'svg_' + this.$scope.nodeId + '_' + this.componentId;\n      this.conceptMapContainerId = 'conceptMapContainer_' + this.$scope.nodeId + '_' + this.componentId;\n      this.selectNodeBarId = 'selectNodeBar_' + this.$scope.nodeId + '_' + this.componentId;\n      this.feedbackContainerId = 'feedbackContainer_' + this.$scope.nodeId + '_' + this.componentId;\n\n      if (this.componentContent.width != null) {\n        this.width = this.componentContent.width;\n      }\n\n      if (this.componentContent.height != null) {\n        this.height = this.componentContent.height;\n      }\n\n      if (this.mode === 'student') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.availableNodes = this.componentContent.nodes;\n        this.availableLinks = this.componentContent.links;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n      } else if (this.mode === 'grading' || this.mode === 'gradingRevision') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n\n        let componentState = this.$scope.componentState;\n\n        if (componentState) {\n          // set ids for the svg and other display elements using the componentStateId (so we have unique ids when showing revisions)\n          /*\n           * the student has work for this component so we will use\n           * the node id, component id, and workgroup id, and\n           * componentStateId for the svg id\n           */\n          let idInfo = this.nodeId + '_' + this.componentId + '_' + this.workgroupId + '_' + componentState.id;\n          if (this.mode === 'gradingRevision') {\n            idInfo = '_gradingRevision_' + idInfo\n            this.svgId = 'svg_' + idInfo;\n            this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n            this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n            this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n          } else {\n            this.svgId = 'svg_' + idInfo;\n            this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n            this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n            this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n          }\n        } else {\n          /*\n           * the student does not have any work for this component so\n           * we will use the node id, component id, and workgroup id\n           * for the svg id\n           */\n          let idInfo = this.nodeId + '_' + this.componentId + '_' + this.workgroupId;\n          this.svgId = 'svg_' + idInfo;\n          this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n          this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n          this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n\n        }\n      } else if (this.mode === 'onlyShowWork') {\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isSnipButtonVisible = false;\n        this.isDisabled = true;\n\n        var componentState = this.$scope.componentState;\n\n        if (componentState == null) {\n          /*\n           * the student does not have any work for this component so\n           * we will use the node id, component id, and workgroup id\n           * for the svg id\n           */\n          this.svgId = 'svgOnlyShowWork_' + this.nodeId + '_' + this.componentId + '_' + this.workgroupId;\n        } else {\n          /*\n           * the student has work for this component so we will use\n           * the node id, component id, and component state id\n           * for the svg id\n           */\n          this.svgId = 'svgOnlyShowWork_' + this.nodeId + '_' + this.componentId + '_' + componentState.id;\n        }\n      } else if (this.mode === 'showPreviousWork') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isSnipButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'authoring') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.availableNodes = this.componentContent.nodes;\n        this.availableLinks = this.componentContent.links;\n\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n          this.isSaveButtonVisible = this.componentContent.showSaveButton;\n          this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n          this.availableNodes = this.componentContent.nodes;\n          this.availableLinks = this.componentContent.links;\n          this.width = this.componentContent.width;\n          this.height = this.componentContent.height;\n          this.setBackgroundImage(this.componentContent.background,\n                      this.componentContent.stretchBackground);\n\n          /*\n           * make sure the SVG element can be accessed. we need to\n           * perform this check because this watch is getting fired\n           * before angular sets the svgId on the svg element. if\n           * setupSVG() is called before the svgId is set on the svg\n           * element, we will get an error.\n           */\n          if (document.getElementById(this.svgId) != null) {\n            this.setupSVG();\n          }\n        }.bind(this), true);\n      }\n\n      /*\n       * Call the initializeSVG() after a timeout so that angular has a\n       * chance to set the svg element id before we start using it. If we\n       * don't wait for the timeout, the svg id won't be set when we try\n       * to start referencing the svg element.\n       */\n      this.$timeout(angular.bind(this, this.initializeSVG));\n    }\n\n    /**\n     * Returns true iff there is student work that hasn't been saved yet\n     */\n    this.$scope.isDirty = function() {\n      return this.$scope.conceptMapController.isDirty;\n    }.bind(this);\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @param isSubmit boolean whether the request is coming from a submit\n     * action (optional; default is false)\n     * @return a promise of a component state containing the student data\n     */\n    this.$scope.getComponentState = function(isSubmit) {\n      var deferred = this.$q.defer();\n      let getState = false;\n      let action = 'change';\n\n      if (isSubmit) {\n        if (this.$scope.conceptMapController.isSubmitDirty) {\n          getState = true;\n          action = 'submit';\n        }\n      } else {\n        if (this.$scope.conceptMapController.isDirty) {\n          getState = true;\n          action = 'save';\n        }\n      }\n\n      if (getState) {\n        // create a component state populated with the student data\n        this.$scope.conceptMapController.createComponentState(action).then((componentState) => {\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', function(event, args) {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n\n        // trigger the submit\n        var submitTriggeredBy = 'nodeSubmitButton';\n        this.submit(submitTriggeredBy);\n      }\n    }.bind(this));\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', angular.bind(this, function(event, args) {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // set isDirty to false because the component state was just saved and notify node\n        this.isDirty = false;\n        this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: false});\n\n        let isAutoSave = componentState.isAutoSave;\n        let isSubmit = componentState.isSubmit;\n        let clientSaveTime = componentState.clientSaveTime;\n\n        // set save message\n        if (isSubmit) {\n          this.setSaveMessage(this.$translate('SUBMITTED'), clientSaveTime);\n\n          this.lockIfNecessary();\n\n          // set isSubmitDirty to false because the component state was just submitted and notify node\n          this.isSubmitDirty = false;\n          this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        } else if (isAutoSave) {\n          this.setSaveMessage(this.$translate('AUTO_SAVED'), clientSaveTime);\n        } else {\n          this.setSaveMessage(this.$translate('SAVED'), clientSaveTime);\n        }\n      }\n    }));\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', function(event, args) {\n\n    }.bind(this));\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'background') {\n                // the target is the background image\n\n                // set the background file name\n                this.authoringComponentContent.background = fileName;\n\n                // the authoring component content has changed so we will save the project\n                this.authoringViewComponentChanged();\n              } else if (args.target != null && args.target.indexOf('node') == 0) {\n                // the target is a node image\n\n                // get the concept map node\n                var node = this.authoringViewGetNodeById(args.target);\n\n                if (node != null) {\n                  // set the file name of the node\n                  node.fileName = fileName;\n                }\n\n                // the authoring component content has changed so we will save the project\n                this.authoringViewComponentChanged();\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n  }\n\n  /**\n   * Initialize the SVG\n   */\n  initializeSVG() {\n\n    // setup the svg\n    this.setupSVG();\n\n    var componentState = null;\n\n    // set whether rich text is enabled\n    this.isRichTextEnabled = this.componentContent.isRichTextEnabled;\n\n    // set whether studentAttachment is enabled\n    this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n    // get the component state from the scope\n    componentState = this.$scope.componentState;\n\n    if (this.mode == 'student') {\n      if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {\n        // we will show work from another component\n        this.handleConnectedComponents();\n      }  else if (this.ConceptMapService.componentStateHasStudentWork(componentState, this.componentContent)) {\n        /*\n         * the student has work so we will populate the work into this\n         * component\n         */\n\n        /*\n         * inject the asset path so that the file name is changed to\n         * a relative path\n         * e.g.\n         * \"Sun.png\"\n         * will be changed to\n         * \"/wise/curriculum/108/assets/Sun.png\"\n         */\n        componentState = this.ProjectService.injectAssetPaths(componentState);\n\n        this.setStudentWork(componentState);\n      } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (componentState == null) {\n        /*\n         * only import work if the student does not already have\n         * work for this component\n         */\n\n        // check if we need to import work\n        var importPreviousWorkNodeId = this.componentContent.importPreviousWorkNodeId;\n        var importPreviousWorkComponentId = this.componentContent.importPreviousWorkComponentId;\n\n        if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n          /*\n           * check if the node id is in the field that we used to store\n           * the import previous work node id in\n           */\n          importPreviousWorkNodeId = this.componentContent.importWorkNodeId;\n        }\n\n        if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n          /*\n           * check if the component id is in the field that we used to store\n           * the import previous work component id in\n           */\n          importPreviousWorkComponentId = this.componentContent.importWorkComponentId;\n        }\n\n        if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n          // import the work from the other component\n          this.importWork();\n        } else if (this.componentContent.starterConceptMap != null) {\n          /*\n           * the student has not done any work and there is a starter\n           * concept map so we will populate the concept map with\n           * the starter\n           */\n\n          // get the starter concept map\n          var conceptMapData = this.componentContent.starterConceptMap;\n\n          // populate the concept map data into the component\n          this.populateConceptMapData(conceptMapData);\n        }\n      }\n    } else {\n      /*\n       * inject the asset path so that the file name is changed to\n       * a relative path\n       * e.g.\n       * 'Sun.png'\n       * will be changed to\n       * '/wise/curriculum/108/assets/Sun.png'\n       */\n      componentState = this.ProjectService.injectAssetPaths(componentState);\n\n      // populate the student work into this component\n      this.setStudentWork(componentState);\n    }\n\n    // check if the student has used up all of their submits\n    if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n      /*\n       * the student has used up all of their chances to submit so we\n       * will disable the submit button\n       */\n      this.isSubmitButtonDisabled = true;\n    }\n\n    // populate the previous feedback\n    if (this.latestAnnotations != null) {\n\n      var autoFeedbackString = '';\n\n      // obtain the previous score annotation if any\n      if (this.latestAnnotations.score != null) {\n\n        // get the annotation data\n        var data = this.latestAnnotations.score.data;\n\n        if (data != null) {\n\n          // get the score and max auto score\n          var score = data.value;\n          var maxAutoScore = data.maxAutoScore;\n\n          autoFeedbackString += this.$translate('SCORE') + ': ' + score;\n\n          if (maxAutoScore != null && maxAutoScore != '') {\n            // show the max score as the denominator\n            autoFeedbackString += '/' + maxAutoScore;\n          }\n        }\n      }\n\n      // obtain the previous comment annotation if any\n      if (this.latestAnnotations.comment != null) {\n\n        // get the annotation data\n        var data = this.latestAnnotations.comment.data;\n\n        if (data != null) {\n          if (autoFeedbackString != '') {\n            // add a new line if the result string is not empty\n            autoFeedbackString += '<br/>';\n          }\n\n          // get the comment\n          var comment = data.value;\n          autoFeedbackString += this.$translate('FEEDBACK') + ': ' + comment;\n        }\n      }\n\n      /*\n       * set the previous auto feedback into the field that is used\n       * to display the auto feedback to the student when they click\n       * on the show feedback button\n       */\n      this.autoFeedbackString = autoFeedbackString;\n    }\n\n    // make the nodes draggable\n    this.enableNodeDragging();\n\n    // check if we need to lock this component\n    this.calculateDisabled();\n\n\n    if (this.$scope.$parent.nodeController != null) {\n      // register this component with the parent node\n      this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n    }\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        var conceptMapData = studentData.conceptMapData;\n\n        var submitCounter = studentData.submitCounter;\n\n        if (submitCounter != null) {\n          // populate the submit counter\n          this.submitCounter = submitCounter;\n        }\n\n        if (conceptMapData != null) {\n\n          // populate the concept map data into the component\n          this.populateConceptMapData(conceptMapData);\n        }\n\n        var attachments = studentData.attachments;\n\n        if (attachments != null) {\n          this.attachments = attachments;\n        }\n\n        this.processLatestSubmit();\n      }\n    }\n  };\n\n  /**\n   * Populate the concept map data into the component\n   * @param conceptMapData the concept map data which contains an array\n   * of nodes and an array of links\n   */\n  populateConceptMapData(conceptMapData) {\n\n    if (conceptMapData != null) {\n\n      // clear the existing nodes in the student view\n      this.nodes = [];\n\n      var nodes = conceptMapData.nodes;\n\n      if (nodes != null) {\n\n        // loop through all the nodes\n        for (var n = 0; n < nodes.length; n++) {\n          var node = nodes[n];\n\n          var instanceId = node.instanceId;\n          var originalId = node.originalId;\n          var filePath = node.fileName;\n          var label = node.label;\n          var x = node.x;\n          var y = node.y;\n          var width = node.width;\n          var height = node.height\n\n          // create a ConceptMapNode\n          var conceptMapNode = this.ConceptMapService.newConceptMapNode(this.draw, instanceId, originalId, filePath, label, x, y, width, height);\n\n          // add the node to our array of nodes\n          this.addNode(conceptMapNode);\n\n          // set the mouse events on the node\n          this.setNodeMouseEvents(conceptMapNode);\n        }\n      }\n\n      // clear the existing links in the student view\n      this.links = [];\n\n      var links = conceptMapData.links;\n\n      if (links != null) {\n\n        // loop through all the links\n        for (var l = 0; l < links.length; l++) {\n          var link = links[l];\n\n          var instanceId = link.instanceId;\n          var originalId = link.originalId;\n          var sourceNodeId = link.sourceNodeInstanceId;\n          var destinationNodeId = link.destinationNodeInstanceId;\n          var label = link.label;\n          var color = link.color;\n          var curvature = link.curvature;\n          var startCurveUp = link.startCurveUp;\n          var endCurveUp = link.endCurveUp;\n          var sourceNode = null;\n          var destinationNode = null;\n\n          if (sourceNodeId != null) {\n            sourceNode = this.getNodeById(sourceNodeId);\n          }\n\n          if (destinationNodeId != null) {\n            destinationNode = this.getNodeById(destinationNodeId);\n          }\n\n          // create a ConceptMapLink\n          var conceptMapLink = this.ConceptMapService.newConceptMapLink(this.draw, instanceId, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, endCurveUp);\n\n          // add the link to our array of links\n          this.addLink(conceptMapLink);\n\n          // set the mouse events on the link\n          this.setLinkMouseEvents(conceptMapLink);\n        }\n      }\n\n      if (conceptMapData.backgroundPath != null &&\n          conceptMapData.backgroundPath != '') {\n        this.setBackgroundImage(conceptMapData.backgroundPath,\n          conceptMapData.stretchBackground);\n      }\n\n      /*\n       * move the link text group to the front so that they are on top\n       * of links\n       */\n      this.moveLinkTextToFront();\n\n      // move the nodes to the front so that they are on top of links\n      this.moveNodesToFront();\n\n      /*\n       * set a timeout to refresh the link labels so that the rectangles\n       * around the labels are properly resized\n       */\n      this.$timeout(() => {\n        this.refreshLinkLabels();\n      });\n    }\n  }\n\n  /**\n   * Refresh the link labels so that the rectangles around the text\n   * labels are resized to fit the text properly. This is required because\n   * the rectangles are not properly sized when the ConceptMapLinks are\n   * initialized. The rectangles need to be rendered first and then the\n   * labels need to be set in order for the rectangles to be resized properly.\n   * This is why this function is called in a $timeout.\n   */\n  refreshLinkLabels() {\n\n    if (this.nodes != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var node = this.nodes[n];\n\n        if (node != null) {\n          // get the label from the node\n          var label = node.getLabel();\n\n          /*\n           * set the label back into the node so that the rectangle\n           * around the text label is resized to the text\n           */\n          node.setLabel(label);\n        }\n      }\n    }\n\n    if (this.links != null) {\n\n      // loop throgh all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var link = this.links[l];\n\n        if (link != null) {\n          // get the label from the link\n          var label = link.getLabel();\n\n          /*\n           * set the label back into the link so that the rectangle\n           * around the text label is resized to the text\n           */\n          link.setLabel(label);\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if latest component state is a submission and set isSubmitDirty accordingly\n   */\n  processLatestSubmit() {\n    let latestState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n    if (latestState) {\n      if (latestState.isSubmit) {\n        // latest state is a submission, so set isSubmitDirty to false and notify node\n        this.isSubmitDirty = false;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SUBMITTED'), latestState.clientSaveTime);\n      } else {\n        // latest state is not a submission, so set isSubmitDirty to true and notify node\n        this.isSubmitDirty = true;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SAVED'), latestState.clientSaveTime);\n      }\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n    this.isSubmit = false;\n\n    if (this.mode === 'authoring') {\n      /*\n       * we are in authoring mode so we will set isDirty to false here\n       * because the 'componentSaveTriggered' event won't work in\n       * authoring mode\n       */\n      this.isDirty = false;\n    }\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    // trigger the submit\n    var submitTriggeredBy = 'componentSubmitButton';\n    this.submit(submitTriggeredBy);\n  };\n\n  /**\n   * A submit was triggered by the component submit button or node submit button\n   * @param submitTriggeredBy what triggered the submit\n   * e.g. 'componentSubmitButton' or 'nodeSubmitButton'\n   */\n  submit(submitTriggeredBy) {\n\n    if (this.isSubmitDirty) {\n\n      var performSubmit = true;\n\n      if (this.componentContent.maxSubmitCount != null) {\n        // there is a max submit count\n\n        // calculate the number of submits this student has left\n        var numberOfSubmitsLeft = this.componentContent.maxSubmitCount - this.submitCounter;\n\n        var message = '';\n\n        if (numberOfSubmitsLeft <= 0) {\n\n          // the student does not have any more chances to submit\n          alert(this.$translate('conceptMap.youHaveNoMoreChances'));\n          performSubmit = false;\n        } else if (numberOfSubmitsLeft == 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('conceptMap.youHaveOneChance', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          performSubmit = confirm(message);\n        } else if (numberOfSubmitsLeft > 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('conceptMap.youHaveMultipleChances', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          performSubmit = confirm(message);\n        }\n      }\n\n      if (performSubmit) {\n        // increment the submit counter\n        this.submitCounter++;\n\n        // check if the student has used up all of their submits\n        if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n          /*\n           * the student has used up all of their submits so we will\n           * disable the submit button\n           */\n          //this.isDisabled = true;\n          this.isSubmitButtonDisabled = true;\n        }\n\n        // get the custom rule evaluator code that was authored\n        var customRuleEvaluator = this.componentContent.customRuleEvaluator;\n\n        // get the component content\n        var componentContent = this.componentContent;\n\n        // get the student concept map\n        var conceptMapData = this.getConceptMapData();\n\n        var thisConceptMapService = this.ConceptMapService;\n\n        // the result will be stored in this variable\n        var thisResult = {};\n\n        /*\n         * create the any function that can be called in the custom rule\n         * evaluator code. the arguments to the any function are rule names.\n         * for example if we are looking for any of the links below\n         * Sun (Infrared Radiation) Space\n         * Sun (Heat) Space\n         * Sun (Solar Radiation) Space\n         * we will call the any function like this\n         * any(\"Sun (Infrared Radiation) Space\", \"Sun (Heat) Space\", \"Sun (Solar Radiation) Space\")\n         * these dynamic arguments will be placed in the arguments variable\n         */\n        var any = function() {\n          return thisConceptMapService.any(componentContent, conceptMapData, arguments);\n        };\n\n        /*\n         * create the all function that can be called in the custom rule\n         * evaluator code. the arguments to the all function are rule names.\n         * for example if we are looking for all of the links below\n         * Sun (Infrared Radiation) Space\n         * Sun (Heat) Space\n         * Sun (Solar Radiation) Space\n         * we will call the any function like this\n         * all(\"Sun (Infrared Radiation) Space\", \"Sun (Heat) Space\", \"Sun (Solar Radiation) Space\")\n         * these dynamic arguments will be placed in the arguments variable\n         */\n        var all = function() {\n          return thisConceptMapService.all(componentContent, conceptMapData, arguments);\n        }\n\n        /*\n         * create the setResult function that can be called in the custom rule\n         * evaluator code\n         */\n        var setResult = function(result) {\n          thisResult = result;\n        }\n\n        // run the custom rule evaluator\n        eval(customRuleEvaluator);\n\n        // remember the auto feedback result\n        this.autoFeedbackResult = thisResult;\n\n        var resultString = '';\n\n        if (this.componentContent.showAutoScore && thisResult.score != null) {\n          // display the score\n          resultString += this.$translate('SCORE') + ': ' + thisResult.score;\n\n          if (this.componentContent.maxScore != null && this.componentContent.maxScore != '') {\n            // show the max score as the denominator\n            resultString += '/' + this.componentContent.maxScore;\n          }\n        }\n\n        if (this.componentContent.showAutoFeedback && thisResult.feedback != null) {\n          if (resultString != '') {\n            // add a new line if the result string is not empty\n            resultString += '<br/>';\n          }\n\n          // display the feedback\n          resultString += this.$translate('FEEDBACK') + ': ' + thisResult.feedback;\n        }\n\n        if (resultString != '') {\n          // show the auto feedback in a modal dialog\n          this.$mdDialog.show(\n            this.$mdDialog.alert()\n            .clickOutsideToClose(true)\n            .title(this.$translate('FEEDBACK'))\n            .htmlContent(resultString)\n            .ariaLabel(this.$translate('FEEDBACK'))\n            .ok(this.$translate('CLOSE'))\n          );\n        }\n\n        // remember the feedback string\n        this.autoFeedbackString = resultString;\n\n        this.isSubmit = true;\n\n        if (this.mode === 'authoring') {\n          /*\n           * we are in the authoring view so we will set the\n           * latest score and comment annotations manually\n           */\n\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.createComponentState('submit');\n        }\n\n        // tell the parent node that this component wants to submit\n        this.$scope.$emit('componentSubmitTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n      } else {\n        /*\n         * the student has cancelled the submit so if a component state\n         * is created, it will just be a regular save and not submit\n         */\n        this.isSubmit = false;\n      }\n    }\n  };\n\n  lockIfNecessary() {\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flags so we will know we need to save or submit the\n     * student work later\n     */\n    this.isDirty = true;\n    this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: true});\n\n    this.isSubmitDirty = true;\n    this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n\n    // clear out the save message\n    this.setSaveMessage('', null);\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Get the student response\n   */\n  getStudentResponse() {\n    return this.studentResponse;\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    var deferred = this.$q.defer();\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    // get the text the student typed\n    var response = this.getStudentResponse();\n\n    // set the response into the component state\n    var studentData = {};\n    var conceptMapData = this.getConceptMapData();\n    studentData.conceptMapData = conceptMapData;\n\n    // the student submitted this work\n    componentState.isSubmit = this.isSubmit;\n\n    if (this.isSubmit) {\n\n      /*\n       * reset the isSubmit value so that the next component state\n       * doesn't maintain the same value\n       */\n      this.isSubmit = false;\n\n      if (this.autoFeedbackResult != null) {\n        // there is auto feedback\n\n        if (this.autoFeedbackResult.score != null || this.autoFeedbackResult.feedback != null) {\n          // there is an auto score or auto feedback\n\n          // get the values used to create an annotation\n          var runId = this.ConfigService.getRunId();\n          var periodId = this.ConfigService.getPeriodId();\n          var nodeId = this.nodeId;\n          var componentId = this.componentId;\n          var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n          // create an array of annotations to be saved with the component state\n          componentState.annotations = [];\n\n          if (this.autoFeedbackResult.score != null) {\n            // there is an auto score\n\n            // create the data object for the annotation\n            var data = {};\n            data.value = parseFloat(this.autoFeedbackResult.score);\n            data.autoGrader = 'conceptMap';\n\n            if (this.componentContent.maxScore != null) {\n              data.maxAutoScore = parseFloat(this.componentContent.maxScore);\n            }\n\n            // create the auto score annotation\n            var scoreAnnotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n            // add the annotation to the component state\n            componentState.annotations.push(scoreAnnotation);\n\n            if (this.mode === 'authoring') {\n              if (this.latestAnnotations == null) {\n                this.latestAnnotations = {};\n              }\n\n              /*\n               * we are in the authoring view so we will set the\n               * latest score annotation manually\n               */\n              this.latestAnnotations.score = scoreAnnotation;\n            }\n          }\n\n          if (this.autoFeedbackResult.feedback != null) {\n            // there is auto feedback\n\n            // create the data object for the annotation\n            var data = {};\n            data.value = this.autoFeedbackResult.feedback;\n            data.autoGrader = 'conceptMap';\n\n            // create the auto score annotation\n            var commentAnnotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n            // add the annotation to the component state\n            componentState.annotations.push(commentAnnotation);\n\n            if (this.mode === 'authoring') {\n              if (this.latestAnnotations == null) {\n                this.latestAnnotations = {};\n              }\n\n              /*\n               * we are in the authoring view so we will set the\n               * latest comment annotation manually\n               */\n              this.latestAnnotations.comment = commentAnnotation;\n            }\n          }\n        }\n      }\n    }\n\n    // set the submit counter\n    studentData.submitCounter = this.submitCounter;\n\n    // set the student data into the component state\n    componentState.studentData = studentData;\n\n    // set the component type\n    componentState.componentType = 'ConceptMap';\n\n    // set the node id\n    componentState.nodeId = this.nodeId;\n\n    // set the component id\n    componentState.componentId = this.componentId;\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Get the concept map data\n   * @returns an object containing a array of nodes and an array of links\n   */\n  getConceptMapData() {\n    var studentData = {};\n    studentData.nodes = [];\n    studentData.links = [];\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      // get the JSON representation of the node\n      var nodeJSON = node.toJSONObject();\n\n      studentData.nodes.push(nodeJSON);\n    }\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var link = this.links[l];\n\n      // get the JSON representation of the link\n      var linkJSON = link.toJSONObject();\n\n      studentData.links.push(linkJSON);\n    }\n\n    // set the background data into the student data\n    if (this.background != null) {\n      var background = this.background;\n\n      // this is the background file name e.g. background.png\n      studentData.background = background.substring(background.lastIndexOf('/') + 1);\n\n      // this is the background path e.g. /wise/curriculum/108/assets/background.png\n      studentData.backgroundPath = background;\n\n      // whether to stretch the background to fill the svg element\n      studentData.stretchBackground = this.stretchBackground;\n    }\n\n    return studentData;\n  }\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n\n    /*\n     * we don't need to perform any additional processing so we can resolve\n     * the promise immediately\n     */\n    deferred.resolve(componentState);\n  }\n\n  /**\n   * Create an auto score annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto score annotation\n   */\n  createAutoScoreAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto score annotation\n    var annotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Create an auto comment annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto comment annotation\n   */\n  createAutoCommentAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto comment annotation\n    var annotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the component after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n    }\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  removeAttachment(attachment) {\n    if (this.attachments.indexOf(attachment) != -1) {\n      this.attachments.splice(this.attachments.indexOf(attachment), 1);\n      this.studentDataChanged();\n      // YOU ARE NOW FREEEEEEEEE!\n    }\n  };\n\n  /**\n   * Attach student asset to this Component's attachments\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          var attachment = {\n            studentAssetId: copiedAsset.id,\n            iconURL: copiedAsset.iconURL\n          };\n\n          this.attachments.push(attachment);\n          this.studentDataChanged();\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the number of rows for the textarea\n   */\n  getNumRows() {\n    var numRows = null;\n\n    if (this.componentContent != null) {\n      numRows = this.componentContent.numRows;\n    }\n\n    return numRows;\n  };\n\n  /**\n   * Get the number of columns for the textarea\n   */\n  getNumColumns() {\n    var numColumns = null;\n\n    if (this.componentContent != null) {\n      numColumns = this.componentContent.numColumns;\n    }\n\n    return numColumns;\n  };\n\n  /**\n   * Get the text the student typed\n   */\n  getResponse() {\n    var response = null;\n\n    if (this.studentResponse != null) {\n      response = this.studentResponse;\n    }\n\n    return response;\n  };\n\n  /**\n   * Import work from another component\n   */\n  importWork() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // get the import previous work node id and component id\n      var importPreviousWorkNodeId = componentContent.importPreviousWorkNodeId;\n      var importPreviousWorkComponentId = componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        if (componentContent.importWorkNodeId != null && componentContent.importWorkNodeId != '') {\n          importPreviousWorkNodeId = componentContent.importWorkNodeId;\n        }\n      }\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        if (componentContent.importWorkComponentId != null && componentContent.importWorkComponentId != '') {\n          importPreviousWorkComponentId = componentContent.importWorkComponentId;\n        }\n      }\n\n      if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importPreviousWorkNodeId, importPreviousWorkComponentId);\n\n          if (importWorkComponentState != null) {\n            /*\n             * populate a new component state with the work from the\n             * imported component state\n             */\n            var populatedComponentState = this.ConceptMapService.populateComponentState(importWorkComponentState);\n\n            /*\n             * inject the asset paths so that the node file names change from\n             * 'Sun.png' to '/wise/curriculum/129/assets/Sun.png'\n             */\n            populatedComponentState = this.ProjectService.injectAssetPaths(populatedComponentState);\n\n            // populate the component state into this component\n            this.setStudentWork(populatedComponentState);\n\n            // make the work dirty so that it gets saved\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * A node up button was clicked in the authoring tool so we will move the\n   * node up\n   * @param index the index of the node that we will move\n   */\n  authoringViewNodeUpButtonClicked(index) {\n\n    // check if the node is at the top\n    if (index != 0) {\n      // the node is not at the top so we can move it up\n\n      // get the nodes\n      var nodes = this.authoringComponentContent.nodes;\n\n      if (nodes != null) {\n\n        // get the node at the given index\n        var node = nodes[index];\n\n        // remove the node\n        nodes.splice(index, 1);\n\n        // insert the node back in one index back\n        nodes.splice(index - 1, 0, node);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * A node down button was clicked in the authoring tool so we will move the\n   * node down\n   * @param index the index of the node that we will move\n   */\n  authoringViewNodeDownButtonClicked(index) {\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    // check if the node is at the bottom\n    if (nodes != null && index != nodes.length - 1) {\n      // the node is not at the bottom so we can move it down\n\n      // get the node at the given index\n      var node = nodes[index];\n\n      // remove the node\n      nodes.splice(index, 1);\n\n      // insert the node back in one index ahead\n      nodes.splice(index + 1, 0, node);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * A node delete button was clicked in the authoring tool so we will remove\n   * the node\n   * @param index the index of the node that we will delete\n   */\n  authoringViewNodeDeleteButtonClicked(index) {\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    if (nodes != null) {\n\n      // get the node\n      var node = nodes[index];\n\n      if (node != null) {\n\n        // get the file name and label\n        var nodeFileName = node.fileName;\n        var nodeLabel = node.label;\n\n        // confirm with the author that they really want to delete the node\n        var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisNode', { nodeFileName: nodeFileName, nodeLabel: nodeLabel}));\n\n        if (answer) {\n          /*\n           * the author is sure they want to delete the node so we\n           * will remove it from the array\n           */\n          nodes.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link up button was clicked in the authoring tool so we will move the\n   * link up\n   * @param index the index of the link\n   */\n  authoringViewLinkUpButtonClicked(index) {\n\n    // check if the link is at the top\n    if (index != 0) {\n\n      // get the links\n      var links = this.authoringComponentContent.links;\n\n      if (links != null) {\n\n        // get a link\n        var link = links[index];\n\n        if (link != null) {\n\n          // remove the link\n          links.splice(index, 1);\n\n          // add the link back in one index back\n          links.splice(index - 1, 0, link);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link down button was clicked in the authoring tool so we will move the\n   * link down\n   * @param index the index of the link\n   */\n  authoringViewLinkDownButtonClicked(index) {\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    // check if the link is at the bottom\n    if (links != null && index != links.length - 1) {\n      // the node is not at the bottom so we can move it down\n\n      if (links != null) {\n\n        // get the link\n        var link = links[index];\n\n        if (link != null) {\n\n          // remove the link\n          links.splice(index, 1);\n\n          // add the link back in one index ahead\n          links.splice(index + 1, 0, link);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link delete button was clicked in the authoring tool so we remove the\n   * link\n   * @param index the index of the link\n   */\n  authoringViewLinkDeleteButtonClicked(index) {\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    if (links != null) {\n\n      // get a link\n      var link = links[index];\n\n      if (link != null) {\n\n        // get the link label\n        var linkLabel = link.label;\n\n        // confirm with the author that they really want to delete the link\n        var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisLink', { linkLabel: linkLabel}));\n\n        if (answer) {\n          /*\n           * the author is sure they want to delete the link so we\n           * will remove it from the array\n           */\n          links.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a node in the authoring tool\n   */\n  authoringViewAddNode() {\n\n    // get a new node id\n    var id = this.authoringGetNewConceptMapNodeId();\n\n    // create the new node\n    var newNode = {};\n    newNode.id = id;\n    newNode.label = '';\n    newNode.fileName = '';\n    newNode.width = 100;\n    newNode.height = 100;\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    // add the new node\n    nodes.push(newNode);\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get the concept map node with the given id\n   * @param nodeId the concept map node id\n   * @return the concept map node with the given node id\n   */\n  authoringViewGetNodeById(nodeId) {\n\n    if (nodeId != null &&\n      this.authoringComponentContent != null &&\n      this.authoringComponentContent.nodes != null) {\n\n      // loop through all the concept map nodes\n      for (var n = 0; n < this.authoringComponentContent.nodes.length; n++) {\n        var node = this.authoringComponentContent.nodes[n];\n\n        if (node != null) {\n          if (nodeId === node.id) {\n            // we have found the concept map node that we want\n            return node;\n          }\n        }\n      }\n    }\n\n    return null;\n  }\n\n  /**\n   * Add a link in the authoring tool\n   */\n  authoringViewAddLink() {\n\n    // get a new link id\n    var id = this.authoringGetNewConceptMapLinkId();\n\n    // create a new link\n    var newLink = {};\n    newLink.id = id;\n    newLink.label = '';\n    newLink.color = '';\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    // add the new link\n    links.push(newLink);\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get a new ConceptMapNode id that isn't being used\n   * @returns a new ConceptMapNode id e.g. 'node3'\n   */\n  authoringGetNewConceptMapNodeId() {\n\n    var nextAvailableNodeIdNumber = 1;\n\n    // array to remember the numbers that have been used in node ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.authoringComponentContent.nodes.length; x++) {\n      var node = this.authoringComponentContent.nodes[x];\n\n      if (node != null) {\n\n        // get the node id\n        var nodeId = node.id;\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('node', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableNodeIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'node' + nextAvailableNodeIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Get a new ConceptMapLink id that isn't being used\n   * @returns a new ConceptMapLink id e.g. 'link3'\n   */\n  authoringGetNewConceptMapLinkId() {\n\n    var nextAvailableLinkIdNumber = 1;\n\n    // array to remember the numbers that have been used in link ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.authoringComponentContent.links.length; x++) {\n      var link = this.authoringComponentContent.links[x];\n\n      if (link != null) {\n\n        // get the node id\n        var nodeId = link.id;\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('link', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableLinkIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'link' + nextAvailableLinkIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * A \"with link\" checkbox was checked\n   * @param ruleIndex the index of the rule\n   */\n  authoringRuleLinkCheckboxClicked(ruleIndex) {\n\n    // get the rule that was checked\n    var rule = this.authoringComponentContent.rules[ruleIndex];\n\n    if (rule != null) {\n      if (rule.type == 'node') {\n        /*\n         * the rule has been set to 'node' instead of 'link' so we\n         * will remove the link label and other node label\n         */\n\n        delete rule.linkLabel;\n        delete rule.otherNodeLabel;\n      }\n    }\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a new rule\n   */\n  authoringAddRule() {\n\n    // create the new rule\n    var newRule = {};\n    newRule.name = '';\n    newRule.type = 'node';\n    newRule.categories = [];\n    newRule.nodeLabel = '';\n    newRule.comparison = 'exactly';\n    newRule.number = 1;\n    newRule.not = false;\n\n    // add the rule to the array of rules\n    this.authoringComponentContent.rules.push(newRule);\n\n    var showSubmitButton = false;\n\n    if (this.authoringComponentContent.rules.length > 0) {\n      // there are scoring rules so we will show the submit button\n      showSubmitButton = true;\n    }\n\n    // set the value of the showSubmitButton field\n    this.setShowSubmitButtonValue(showSubmitButton);\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a rule up\n   * @param index the index of the rule\n   */\n  authoringViewRuleUpButtonClicked(index) {\n\n    // check if the rule is at the top\n    if (index != 0) {\n      // the rule is not at the top so we can move it up\n\n      // get the rules\n      var rules = this.authoringComponentContent.rules;\n\n      if (rules != null) {\n\n        // get the rule at the given index\n        var rule = rules[index];\n\n        // remove the rule\n        rules.splice(index, 1);\n\n        // insert the rule back in one index back\n        rules.splice(index - 1, 0, rule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a rule down\n   * @param index the index of the rule\n   */\n  authoringViewRuleDownButtonClicked(index) {\n\n    // get the rules\n    var rules = this.authoringComponentContent.rules;\n\n    // check if the rule is at the bottom\n    if (rules != null && index != rules.length - 1) {\n      // the rule is not at the bottom so we can move it down\n\n      // get the rule at the given index\n      var rule = rules[index];\n\n      // remove the rule\n      rules.splice(index, 1);\n\n      // insert the rule back in one index ahead\n      rules.splice(index + 1, 0, rule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /*\n   * Delete a rule\n   * @param index the index of the rule to delete\n   */\n  authoringViewRuleDeleteButtonClicked(index) {\n\n    // get the rule\n    var rule = this.authoringComponentContent.rules[index];\n\n    if (rule != null) {\n\n      // get the rule name\n      var ruleName = rule.name;\n\n      // confirm with the author that they really want to delete the rule\n      var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisRule', { ruleName: ruleName }));\n\n      if (answer) {\n        // remove the rule at the given index\n        this.authoringComponentContent.rules.splice(index, 1);\n\n        // perform updating and saving\n        this.authoringViewComponentChanged();\n      }\n    }\n\n    var showSubmitButton = false;\n\n    if (this.authoringComponentContent.rules.length > 0) {\n      // there are scoring rules so we will show the submit button\n      showSubmitButton = true;\n    }\n\n    // set the value of the showSubmitButton field\n    this.setShowSubmitButtonValue(showSubmitButton);\n  }\n\n  /**\n   * Add a category to a rule\n   * @param rule the rule\n   */\n  authoringViewAddCategoryClicked(rule) {\n\n    if (rule != null) {\n      // add an empty category name\n      rule.categories.push('');\n    }\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a category from a rule\n   * @param rule delete a category from this rule\n   * @param index the index of the category\n   */\n  authoringViewDeleteCategoryClicked(rule, index) {\n\n    if (rule != null) {\n\n      // get the rule name\n      var ruleName = rule.name;\n\n      // get the category name\n      var categoryName = rule.categories[index];\n\n      // confirm with the author that they really want to delete the category from the rule\n      var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteTheCategory' , { ruleName: ruleName, categoryName: categoryName }));\n\n      if (answer) {\n        // remove the category at the index\n        rule.categories.splice(index, 1);\n\n        // perform updating and saving\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Get all the step node ids in the project\n   * @returns all the step node ids\n   */\n  getStepNodeIds() {\n    var stepNodeIds = this.ProjectService.getNodeIds();\n\n    return stepNodeIds;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Set the message next to the save button\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setSaveMessage(message, time) {\n    this.saveMessage.text = message;\n    this.saveMessage.time = time;\n  };\n\n  /**\n   * Check if CRater is enabled for this component\n   * @returns whether CRater is enabled for this component\n   */\n  isCRaterEnabled() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterEnabled(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on save\n   * @returns whether CRater is set to score on save\n   */\n  isCRaterScoreOnSave() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSave(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on submit\n   * @returns whether CRater is set to score on submit\n   */\n  isCRaterScoreOnSubmit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSubmit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on change\n   * @returns whether CRater is set to score on change\n   */\n  isCRaterScoreOnChange() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnChange(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score when the student exits the step\n   * @returns whether CRater is set to score when the student exits the step\n   */\n  isCRaterScoreOnExit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnExit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    exitListener = this.$scope.$on('exit', angular.bind(this, function(event, args) {\n\n    }));\n  };\n\n  /**\n   * A link type was selected in the link type chooser popup\n   * @param linkType the authored link object that was selected\n   */\n  linkTypeSelected(selectedLink) {\n\n    if (this.highlightedElement != null &&\n      this.highlightedElement.constructor.name == 'ConceptMapLink') {\n\n      /*\n       * get the ConceptMapLink object that we are setting the link type\n       * for\n       */\n      var link = this.highlightedElement;\n\n      // get the label, color, and original id\n      var label = selectedLink.label;\n      var color = selectedLink.color;\n      var originalId = selectedLink.id;\n\n      // set the label, color, and original id into the link\n      link.setLabel(label);\n      link.setColor(color);\n      link.setOriginalId(originalId);\n    }\n\n    // hide the link type chooser\n    this.hideLinkTypeChooser();\n\n    // make the link not highlighted\n    this.clearHighlightedElement();\n\n    // handle the student data changing\n    this.studentDataChanged();\n  }\n\n  /**\n   * Get the links title\n   * @returns the links title\n   */\n  getLinksTitle() {\n    var linksTitle = '';\n\n    if (this.componentContent != null) {\n      linksTitle = this.componentContent.linksTitle;\n    }\n\n    return linksTitle;\n  }\n\n  /**\n   * Show the link type chooser popup\n   */\n  showLinkTypeChooser() {\n\n    // check if we have initialized the popup\n    if (!this.initializedDisplayLinkTypeChooserModalOverlay) {\n      // we have not initialized the popup so we will do so now\n      this.setLinkTypeChooserOverlayStyle();\n      this.initializedDisplayLinkTypeChooserModalOverlay = true;\n    }\n\n    /*\n     * initialize the top left of the link chooser popup to show up on\n     * the top right of the svg element\n     */\n    this.linkTypeChooserStyle['left'] = '600px';\n    this.linkTypeChooserStyle['top'] = '20px';\n\n    this.displayLinkTypeChooser = true;\n  }\n\n  /**\n   * Hide the link type chooser popup\n   */\n  hideLinkTypeChooser() {\n\n    // hide the link type chooser\n    this.displayLinkTypeChooser = false;\n    this.displayLinkTypeChooserModalOverlay = false;\n    this.newlyCreatedLink = null;\n\n    if (!this.$scope.$$phase) {\n      // TODO GK (from HT) this line was causing a lot of js errors ( $digest already in progress ), so I commented it out\n      // and it still seems to work. Do we need this line?\n      // see here: http://stackoverflow.com/questions/12729122/angularjs-prevent-error-digest-already-in-progress-when-calling-scope-apply\n      //this.$scope.$apply();\n    }\n  }\n\n  /**\n   * Setup the svg\n   */\n  setupSVG() {\n    // get the svg element in the svg.js world\n    this.draw = SVG(this.svgId);\n    this.draw.width(this.width);\n    this.draw.height(this.height);\n\n    this.highlightedElement = null;\n    this.activeNode = null;\n    this.activeLink = null;\n    this.drawingLink = false;\n    this.newlyCreatedLink = null;\n\n    // set the mouse down listener\n    this.draw.mousedown((event) => {\n      this.svgMouseDown(event);\n    });\n\n    // set the mouse up listener\n    this.draw.mouseup((event) => {\n      this.svgMouseUp(event);\n    });\n\n    // set the mouse move listener\n    this.draw.mousemove((event) => {\n      this.svgMouseMove(event);\n    });\n\n    // get the svg element in the angular world\n    var svg = angular.element('#' + this.svgId);\n\n    /*\n     * check if we have already added the dragover listener so we don't\n     * add multiple listeners for the same event. adding multiple listeners\n     * to the same event may occur in the authoring tool.\n     */\n    if (!this.addedDragOverListener) {\n      /*\n       * listen for the dragover event which occurs when the user is\n       * dragging a node onto the svg\n       */\n      svg[0].addEventListener('dragover', (event) => {\n        /*\n         * prevent the default because if we don't, the user won't\n         * be able to drop a new node instance onto the svg in the\n         * authoring mode\n         */\n        event.preventDefault();\n      });\n\n      this.addedDragOverListener = true;\n    }\n\n    /*\n     * check if we have already added the drop listener so we don't\n     * add multiple listeners for the same event. adding multiple listeners\n     * to the same event may occur in the authoring tool.\n     */\n    if (!this.addedDropListener) {\n      /*\n       * listen for the drop event which occurs when the student drops\n       * a new node onto the svg\n       */\n      svg[0].addEventListener('drop', (event) => {\n\n        /*\n         * the user has dropped a new node onto the svg to create a\n         * new instance of a node\n         */\n        this.newNodeDropped(event);\n      });\n\n      this.addedDropListener = true;\n    }\n\n    // set the link type chooser style\n    this.setLinkTypeChooserStyle();\n  }\n\n  /**\n   * Set the link type chooser popup style\n   */\n  setLinkTypeChooserStyle() {\n\n    /*\n     * set the link type chooser popup to show up in the upper right of\n     * the svg element\n     */\n    this.linkTypeChooserStyle = {\n      'width': '300px',\n      'position': 'absolute',\n      'left': '600px',\n      'top': '20px',\n      'border': '1px solid black',\n      'backgroundColor': 'white',\n      'cursor': 'pointer',\n      'z-index': 10000,\n      'padding': '16px'\n    }\n  }\n\n  /**\n   * Set the link type chooser popup overlay style\n   */\n  setLinkTypeChooserOverlayStyle() {\n\n    // calculate the modal overlay width and height\n    this.modalWidth = this.getModalWidth();\n    this.modalHeight = this.getModalHeight();\n\n    //var overlayWidth = this.modalWidth + 'px';\n    var overlayWidth = this.modalWidth;\n\n    var conceptMapContainer = angular.element('#' + this.conceptMapContainerId);\n    var width = conceptMapContainer.width();\n    var height = conceptMapContainer.height();\n    var offset = conceptMapContainer.offset();\n\n    var offsetLeft = offset.left;\n    var offsetTop = offset.top;\n    offsetLeft = 0;\n    offsetTop = 0;\n\n    this.linkTypeChooserModalOverlayStyle = {\n      'position': 'absolute',\n      'z-index': 9999,\n      'width': overlayWidth,\n      'height': height,\n      'background-color': '#000000',\n      'opacity': 0.4\n    }\n  }\n\n  /**\n   * Get the width that the modal overlay should be\n   * @returns the width that the modal overlay should be\n   */\n  getModalWidth() {\n\n    var selectNodeBarWidth = null;\n    var svgWidth = null;\n\n    // get the width of the left select node bar\n    var selectNodeBarWidthString = angular.element(document.getElementById('#' + this.selectNodeBarId)).css('width');\n\n    // get the width of the svg element\n    var svgWidthString = angular.element(document.getElementById(this.svgId)).css('width');\n\n    if (selectNodeBarWidthString != null && svgWidthString != null) {\n      // get the integer values\n      selectNodeBarWidth = parseInt(selectNodeBarWidthString.replace('px', ''));\n      svgWidth = parseInt(svgWidthString.replace('px', ''));\n    }\n\n    var overlayWidth = null;\n\n    if (selectNodeBarWidth != null && svgWidth != null) {\n      // calculate the sum of the widths\n      overlayWidth = selectNodeBarWidth + svgWidth;\n    }\n\n    return overlayWidth;\n  }\n\n  /**\n   * Get the height that the modal overlay should be\n   * @returns the height that the modal overlay should be\n   */\n  getModalHeight() {\n\n    var selectNodeBarHeight = null;\n    var svgHeight = null;\n\n    // get the height of the left select node bar\n    var selectNodeBarHeightString = angular.element(document.getElementById('#' + this.selectNodeBarId)).css('height');\n\n    // get the height of the svg element\n    var svgHeightString = angular.element(document.getElementById(this.svgId)).css('height');\n\n    if (selectNodeBarHeightString != null && svgHeightString != null) {\n      // get the integer values\n      selectNodeBarHeight = parseInt(selectNodeBarHeightString.replace('px', ''));\n      svgHeight = parseInt(svgHeightString.replace('px', ''));\n    }\n\n    var overlayHeight = null;\n\n    if (selectNodeBarHeight != null && svgHeight != null) {\n      // get the larger of the two heights\n      overlayHeight = Math.max(selectNodeBarHeight, svgHeight);\n    }\n\n    return overlayHeight;\n  }\n\n  /**\n   * The cancel button on the link type chooser was clicked\n   */\n  cancelLinkTypeChooser() {\n\n    if (this.newlyCreatedLink != null) {\n      /*\n       * the student has just created this link and has not yet chosen\n       * a link type so we will remove the link\n       */\n      this.newlyCreatedLink.remove();\n      this.newlyCreatedLink = null;\n    }\n\n    // hide the link chooser\n    this.hideLinkTypeChooser();\n\n    // make the link not highlighted\n    this.clearHighlightedElement();\n  }\n\n  /**\n   * Called when the mouse iss clicked down on a blank spot in the svg element\n   * @param event the mouse down event\n   */\n  svgMouseDown(event) {\n    if (event.target.tagName == 'svg') {\n      // remove highlighting from any item that was previously highlighted\n      this.clearHighlightedElement();\n    }\n  }\n\n  /**\n   * Called when the mouse is released\n   * @param event the mouse up event\n   */\n  svgMouseUp(event) {\n\n    if (this.activeLink != null && this.activeNode == null) {\n      /*\n       * the student was creating a link but did not connect the link\n       * to a destination node so we will just remove the link\n       */\n      this.activeLink.remove();\n    }\n\n    // we are no longer drawing a link\n    this.drawingLink = false;\n\n    // there is no longer an active link\n    this.activeLink = null;\n\n    // enable node draggin\n    this.enableNodeDragging();\n    this.moveLinkTextToFront();\n    // move the nodes to the front so that they are on top of links\n    this.moveNodesToFront();\n  }\n\n  /**\n   * Called when the mouse is moved\n   * @param event the mouse move event\n   */\n  svgMouseMove(event) {\n\n    if (this.activeLink != null) {\n      /*\n       * there is an active link which means the student has created a\n       * new link and is in the process of choosing the link's destination\n       * node\n       */\n\n      // get the coordinates that the link should be updated to\n      var coordinates = this.getRelativeCoordinatesByEvent(event);\n      var x1 = null;\n      var y1 = null;\n      var x2 = coordinates.x;\n      var y2 = coordinates.y;\n\n      /*\n       * get the location of the center of the connector that the link\n       * originated from\n       */\n      var startX = this.activeLinkStartX;\n      var startY = this.activeLinkStartY;\n\n      /*\n       * get the distance from the start to the current position of the\n       * mouse\n       */\n      var distance = this.ConceptMapService.calculateDistance(startX, startY, x2, y2);\n\n      /*\n       * check if we have set the curvature yet and that the mouse\n       * is more than 20 pixels away from the start.\n       *\n       * we will determine the curvature of the link based upon how\n       * the user has dragged the mouse in relation to the center\n       * of the connector. if they start drawing the link horizontally\n       * we will create a straight line with no curvature. if they\n       * start drawing the link by moving the mouse up, we will create\n       * a line that curves up. if they start drawing the link by\n       * moving the mouse down, we will create a line that curves down.\n       */\n      if (!this.linkCurvatureSet && distance > 20) {\n\n        /*\n         * get the slope of the line from the start to the location\n         * of the mouse\n         */\n        var slope = Math.abs(this.ConceptMapService.getSlope(startX, startY, x2, y2));\n\n        if (y2 < startY) {\n          // the user has moved the mouse above the connector\n\n          if (slope == null) {\n            /*\n             * the slope is infinite so we will default the\n             * curvature to 0.5\n             */\n            this.activeLink.curvature = 0.5;\n          } else if (slope < 1.0) {\n            // make the link straight\n            this.activeLink.curvature = 0.0;\n          } else {\n            // make the link curved\n            this.activeLink.curvature = 0.5;\n          }\n\n          // make the link curve up\n          this.activeLink.startCurveUp = true;\n          this.activeLink.endCurveUp = true;\n        } else if (y2 > startY) {\n          // the user has moved the mouse below the connector\n\n          if (slope == null) {\n            /*\n             * the slope is infinite so we will default the\n             * curvature to 0.5\n             */\n            this.activeLink.curvature = 0.5;\n          } else if (slope < 1.0) {\n            // make the link straight\n            this.activeLink.curvature = 0.0;\n          } else {\n            // make the link curved\n            this.activeLink.curvature = 0.5;\n          }\n\n          // make the link curve down\n          this.activeLink.startCurveUp = false;\n          this.activeLink.endCurveUp = false;\n        }\n\n        // remember that we have set the curvature\n        this.linkCurvatureSet = true;\n      }\n\n      var isDragging = true;\n\n      // redraw the link with the new coordinates\n      this.activeLink.updateCoordinates(x1, y1, x2, y2, isDragging);\n    }\n  }\n\n  /**\n   * Set the active node. This is called when the student places the mouse\n   * over a node. When a node becomes active, we show the delete button and\n   * the border.\n   * @param node the node to make active\n   */\n  setActiveNode(node) {\n    if (node != null) {\n      // show the delete button for the node\n      node.showDeleteButton();\n\n      // show the border for the node\n      node.showBorder();\n\n      // remember the active node\n      this.activeNode = node;\n    }\n  }\n\n  /**\n   * Clear the active node\n   */\n  clearActiveNode() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var tempNode = this.nodes[n];\n\n      if (tempNode == this.activeNode && tempNode != this.highlightedElement) {\n        /*\n         * we have found the node and it is not highlighted so we will\n         * hide the delete button and hide the border\n         */\n        tempNode.hideDeleteButton();\n        tempNode.hideBorder();\n      }\n    }\n\n    this.activeNode = null;\n  }\n\n  /**\n   * Get the coordinates of the mouse relative to the svg element\n   * @param event a mouse event\n   * @returns an object containing x and y values\n   */\n  getRelativeCoordinatesByEvent(event) {\n\n    // get the offset of the mouse from its parent\n    var offsetX = event.offsetX;\n    var offsetY = event.offsetY;\n\n    var parentOffsetX = 0;\n    var parentOffsetY = 0;\n\n    // get the user agent so we can determine which browser the user is using\n    var userAgent = navigator.userAgent;\n\n    if (event.target.tagName == 'svg') {\n      // the target is the svg element\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n        var matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n        matrix = event.target.createSVGMatrix();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      } else {\n        // the user is using some other browser\n        matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    } else if (event.target.tagName == 'circle') {\n      // the target is a node connector circle or delete circle\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the matrix of the group\n        var matrix = event.target.getCTM();\n\n        // get the bounding box of the circle\n        var bbox = event.target.getBBox();\n\n        /*\n         * get the bounding box of the circle so we can get the\n         * coordinates of the circle within the group\n         */\n        var x = bbox.x;\n        var y = bbox.y;\n\n        // get the absolute coordinates of the circle\n        parentOffsetX = matrix.e + bbox.x;\n        parentOffsetY = matrix.f + bbox.y;\n      }\n    } else if (event.target.tagName == 'rect') {\n      // the target is the rectangle that outlines the image\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the matrix of the group\n        var matrix = event.target.getCTM();\n\n        // get the bounding box of the rect\n        var bbox = event.target.getBBox();\n\n        /*\n         * get the bounding box of the rect so we can get the\n         * coordinates of the rect within the group\n         */\n        var x = bbox.x;\n        var y = bbox.y;\n\n        // get the absolute coordinates of the rect\n        parentOffsetX = matrix.e + x;\n        parentOffsetY = matrix.f + y;\n      }\n    } else if (event.target.tagName == 'image') {\n      // the target is an image\n\n      if (userAgent.indexOf('Chrome') != -1) {\n\n      } else if (userAgent.indexOf('Firefox') != -1) {\n\n        // get the matrix of the group\n        var matrix = event.target.parentElement.getCTM();\n\n        // get the coordinates of the upper left corner of the group\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    } else if (event.target.tagName == 'path') {\n      /*\n       * the target is the link line. sometimes the mouse can be over the\n       * link if the student is moving the mouse around quickly.\n       */\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the coordinates of the head of the link\n        var x2 = event.target.attributes['x2'];\n        var y2 = event.target.attributes['y2'];\n\n        if (x2 != null && y2 != null) {\n          parentOffsetX = parseInt(x2.value);\n          parentOffsetY = parseInt(y2.value);\n        }\n      }\n    } else {\n      // the target is something else\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        var matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    }\n\n    /*\n     * add the parent offset values to the relative offset values to obtain\n     * the x and y values relative to the upper left corner of the svg\n     */\n    var x = parentOffsetX + offsetX;\n    var y = parentOffsetY + offsetY;\n\n    var returnObject = {}\n    returnObject.x = x;\n    returnObject.y = y;\n\n    return returnObject;\n  }\n\n  /**\n   * Called when the student clicks down on a node in the left node bar\n   * @param $event the mouse down event\n   * @param node the node the student clicked down on\n   */\n  selectNode($event, node) {\n\n    // remember the selected node\n    this.selectedNode = node;\n\n    /*\n     * remember the offset of the mouse relative to the upper left of the\n     * node's image so that we properly calculate the node position when\n     * the student releases the mouse to put the node in the svg\n     */\n    this.tempOffsetX = $event.offsetX;\n    this.tempOffsetY = $event.offsetY;\n  }\n\n  /**\n   * The student has dropped a new node on the svg\n   * @param event the drop event\n   */\n  newNodeDropped(event) {\n\n    // get the selected node\n    var selectedNode = this.selectedNode;\n\n    if (selectedNode != null) {\n      // get the file name\n      var filePath = selectedNode.fileName;\n\n      // get the node name\n      var label = selectedNode.label;\n\n      // get the width and height of the node\n      var width = selectedNode.width;\n      var height = selectedNode.height;\n\n      // get the original authored id\n      var originalId = selectedNode.id;\n\n      // get the coordinates relative to the svg element\n      var coordinates = this.getRelativeCoordinatesByEvent(event);\n\n      // get the position we should drop the node at\n      var x = coordinates.x - this.tempOffsetX;\n      var y = coordinates.y - this.tempOffsetY;\n\n      // get a new ConceptMapNodeId e.g. 'studentNode3'\n      var newConceptMapNodeId = this.getNewConceptMapNodeId();\n\n      // create a ConceptMapNode\n      var conceptMapNode = this.ConceptMapService.newConceptMapNode(this.draw, newConceptMapNodeId, originalId, filePath, label, x, y, width, height);\n\n      // add the node to our array of nodes\n      this.addNode(conceptMapNode);\n\n      // set the mouse events on the node\n      this.setNodeMouseEvents(conceptMapNode);\n\n      // make the node highlighted\n      this.setHighlightedElement(conceptMapNode);\n\n      // handle the student data changing\n      this.studentDataChanged();\n    }\n\n    // enable node dragging\n    this.enableNodeDragging();\n  }\n\n  /**\n   * Get a new ConceptMapNode id that isn't being used\n   * @returns a new ConceptMapNode id e.g. 'studentNode3'\n   */\n  getNewConceptMapNodeId() {\n\n    var nextAvailableNodeIdNumber = 1;\n\n    // array to remember the numbers that have been used in node ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.nodes.length; x++) {\n      var node = this.nodes[x];\n\n      if (node != null) {\n\n        // get the node id\n        var nodeId = node.getId();\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('studentNode', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableNodeIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'studentNode' + nextAvailableNodeIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Get a new ConceptMapLink id that isn't being used\n   * @returns a new ConceptMapLink id e.g. 'studentLink3'\n   */\n  getNewConceptMapLinkId() {\n\n    var nextAvailableLinkIdNumber = 1;\n\n    // array to remember the numbers that have been used in link ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.links.length; x++) {\n      var link = this.links[x];\n\n      if (link != null) {\n\n        // get the node id\n        var linkId = link.getId();\n\n        if (linkId != null) {\n\n          // get the number from the link id\n          var linkIdNumber = parseInt(linkId.replace('studentLink', ''));\n\n          if (linkIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(linkIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableLinkIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'studentLink' + nextAvailableLinkIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Set the mouse events on a newly created node\n   * @param conceptMapNode the node\n   */\n  setNodeMouseEvents(conceptMapNode) {\n\n    // set the node mouse over event\n    conceptMapNode.setNodeMouseOver((event) => {\n      this.nodeMouseOver(event);\n    });\n\n    // set the node mouse out event\n    conceptMapNode.setNodeMouseOut((event) => {\n      this.nodeMouseOut(event);\n    });\n\n    // set the connector mouse down event\n    conceptMapNode.setConnectorMouseDown((event) => {\n      this.disableNodeDragging();\n      this.connectorMouseDown(event);\n    });\n\n    // set the node mouse down event\n    conceptMapNode.setNodeMouseDown((event) => {\n      this.nodeMouseDown(event);\n    });\n\n    // set the node mouse up event\n    conceptMapNode.setNodeMouseUp((event) => {\n      this.nodeMouseUp(event);\n    });\n\n    // set the delete button mouse down event\n    conceptMapNode.setDeleteButtonMouseDown((event) => {\n      this.nodeDeleteButtonMouseDown(event);\n    });\n\n    // set the delete button mouse over event\n    conceptMapNode.setDeleteButtonMouseOver((event) => {\n      this.nodeDeleteButtonMouseOver(event);\n    });\n\n    // set the delete button mouse out event\n    conceptMapNode.setDeleteButtonMouseOut((event) => {\n      this.nodeDeleteButtonMouseOut(event);\n    });\n\n    // set node drag move event\n    conceptMapNode.setDragMove((event) => {\n      this.nodeDragMove(event);\n    });\n  }\n\n  /**\n   * Set an element to be highlighted. The element can be a node or a link.\n   * @param element a node or link\n   */\n  setHighlightedElement(element) {\n\n    // remove highlighting from any existing element\n    this.clearHighlightedElement();\n\n    // hide the link type chooser\n    this.hideLinkTypeChooser();\n\n    if (element != null) {\n\n      // remember the highlighted element\n      this.highlightedElement = element;\n\n      // set the higlighted value to true for the element\n      element.isHighlighted(true);\n\n      // show the delete button for the element\n      element.showDeleteButton();\n\n      if(element.constructor.name == 'ConceptMapNode') {\n        // the element is a node\n\n        // show the border\n        element.showBorder();\n      } else if (element.constructor.name == 'ConceptMapLink') {\n        // the element is a link\n\n        // show the link type chooser\n        this.showLinkTypeChooser();\n\n        // select the link type that was previously chosen for the link\n        this.selectedLinkType = element.getOriginalId();\n      }\n    }\n  }\n\n  /**\n   * If an element is highlighted, make it no longer highlighted.\n   */\n  clearHighlightedElement() {\n\n    if (this.highlightedElement != null) {\n\n      if(this.highlightedElement.constructor.name == 'ConceptMapNode') {\n        // the highlighted element is a node\n\n        // hide the border\n        this.highlightedElement.hideBorder();\n      } else if (this.highlightedElement.constructor.name == 'ConceptMapLink') {\n        // the element is a link\n\n        // hide the link type chooser\n        this.hideLinkTypeChooser();\n      }\n\n      // set the higlighted value to false for the element\n      this.highlightedElement.isHighlighted(false);\n\n      // hide the delete button\n      this.highlightedElement.hideDeleteButton();\n\n      // clear the highlighted element reference\n      this.highlightedElement = null;\n    }\n  }\n\n  /**\n   * Enable node dragging\n   */\n  enableNodeDragging() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get the node group\n        var group = node.getGroup();\n\n        if (group != null) {\n\n          /*\n           * get the bounds that we will allow the node group to\n           * dragged in\n           */\n          var options = {\n            minX: 0,\n            minY: 0,\n            maxX: this.width,\n            maxY: this.height\n          };\n\n          // make the node group draggable\n          group.draggable(options);\n        }\n      }\n    }\n  }\n\n  /**\n   * Disable node dragging. This will be called when the student creates a\n   * link so that they aren't dragging nodes around at the same time as\n   * creating a link.\n   */\n  disableNodeDragging() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get a node group\n        var group = node.getGroup();\n\n        if (group != null) {\n          // make the group not draggable\n          group.draggable(false);\n        }\n      }\n    }\n  }\n\n  /**\n   * Move the link text group to the front\n   */\n  moveLinkTextToFront() {\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var link = this.links[l];\n\n      if (link != null) {\n        // move the link text group to the front\n        link.moveTextGroupToFront();\n      }\n    }\n  }\n\n  /**\n   * Move the nodes to the front so that they show up above links\n   */\n  moveNodesToFront() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get a node group\n        var group = node.getGroup();\n\n        if (group != null) {\n          // move the node group to the front\n          group.front();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a node to our array of nodes\n   * @param node the node to add\n   */\n  addNode(node) {\n    if (node != null) {\n      this.nodes.push(node);\n    }\n  }\n\n  /**\n   * Remove a node from the svg and our array of nodes\n   * @param node the node to remove\n   */\n  removeNode(node) {\n\n    if (node != null) {\n\n      // get the outgoing links from the node\n      var outgoingLinks = node.getOutgoingLinks();\n\n      if (outgoingLinks != null) {\n\n        // get the number of outgoing links\n        var numOutgoingLinks = outgoingLinks.length;\n\n        // loop until we have removed all the outgoing links\n        while (numOutgoingLinks > 0) {\n          // get an outgoing link\n          var outgoingLink = outgoingLinks[0];\n\n          // remove the link from the svg and from our array of links\n          this.removeLink(outgoingLink);\n\n          // decrement the number of outgoing links counter\n          numOutgoingLinks--;\n        }\n      }\n\n      // get the incoming links to the node\n      var incomingLinks = node.getIncomingLinks();\n\n      if (incomingLinks != null) {\n\n        // get the number of incoming links\n        var numIncomingLinks = incomingLinks.length;\n\n        // loop until we have removed all the incoming links\n        while (numIncomingLinks > 0) {\n          // get an incoming link\n          var incomingLink = incomingLinks[0];\n\n          // remove the link from the svg and from our array of links\n          this.removeLink(incomingLink);\n\n          // decrement the number of incoming links counter\n          numIncomingLinks--;\n        }\n      }\n\n      // remove the node from the svg\n      node.remove();\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n\n        if (tempNode == node) {\n          // we have found the node we want to remove\n          this.nodes.splice(n, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove all nodes from the svg and our array of nodes\n   */\n  removeAllNodes() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var tempNode = this.nodes[n];\n\n      // remove the node from the svg\n      tempNode.remove();\n    }\n\n    // clear the nodes array\n    this.nodes = [];\n  }\n\n  /**\n   * Get a node by id.\n   * @param id the node id\n   * @returns the node with the given id or null\n   */\n  getNodeById(id) {\n    var node = null;\n\n    if (id != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeId = tempNode.getId();\n\n        if (id == tempNodeId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Get a node by id.\n   * @param groupId the svg group id\n   * @returns the node with the given id or null\n   */\n  getNodeByGroupId(groupId) {\n    var node = null;\n\n    if (groupId != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeGroupId = tempNode.getGroupId();\n\n        if (groupId == tempNodeGroupId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Get a link by id.\n   * @param id the link id\n   * @returns the link with the given id or null\n   */\n  getLinkById(id) {\n    var link = null;\n\n    if (id != null) {\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n        var tempLinkId = tempLink.getId();\n\n        if (groupId == tempLinkId) {\n          // we have found the link we want\n          link = tempLink;\n          break;\n        }\n      }\n    }\n\n    return link;\n  }\n\n  /**\n   * Get a link by group id.\n   * @param groupId the svg group id\n   * @returns the link with the given group id or null\n   */\n  getLinkByGroupId(groupId) {\n    var link = null;\n\n    if (groupId != null) {\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n        var tempLinkGroupId = tempLink.getGroupId();\n\n        if (groupId == tempLinkGroupId) {\n          // we have found the link we want\n          link = tempLink;\n          break;\n        }\n      }\n    }\n\n    return link;\n  }\n\n  /**\n   * Get a node by its connector id.\n   * @param connectorId the svg circle id of the connector\n   * @returns the node with the associated connector or null\n   */\n  getNodeByConnectorId(connectorId) {\n    var node = null;\n\n    if (connectorId != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n\n        // get the connector id\n        var tempConnectorId = tempNode.getConnectorId();\n\n        if (connectorId == tempConnectorId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Remove a node by id. The id of a node is the same as its svg group id.\n   * @param groupId\n   */\n  removeNodeById(groupId) {\n    if (groupId != null) {\n\n      // loop through all the nodse\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeId = tempNode.getId();\n\n        if (groupId == tempNodeId) {\n          // we have found the node we want to remove\n          this.nodes.splice(n, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a link to our array of links\n   * @param link the link to add\n   */\n  addLink(link) {\n    if (link != null) {\n      this.links.push(link);\n    }\n  }\n\n  /**\n   * Remove a link from the svg and our array of links\n   * @param link the link to remove\n   */\n  removeLink(link) {\n\n    if (link != null) {\n\n      // remove the link from the svg\n      link.remove();\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n\n        if (link == tempLink) {\n          // we have found the link we want to remove\n          this.links.splice(l, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove all the links from the svg and from our array of links\n   */\n  removeAllLinks() {\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var tempLink = this.links[l];\n\n      // remove the link from the svg\n      tempLink.remove();\n    }\n\n    // clear the links array\n    this.links = [];\n  }\n\n  /**\n   * Called when the mouse moves over a node\n   * @param event the mouse over event\n   */\n  nodeMouseOver(event) {\n\n    // get the node group id\n    var groupId = event.target.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        /*\n         * make the node active so that the border and delete button\n         * shows\n         */\n        this.setActiveNode(node);\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a node\n   * @param event the mouse out event\n   */\n  nodeMouseOut(event) {\n\n    // get the group id of the node\n    var groupId = event.target.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        // make the node inactive by clearing the active node\n        this.clearActiveNode();\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on a node\n   * @param event the mouse down event\n   */\n  nodeMouseDown(event) {\n\n    if (event.target.parentElement != null) {\n\n      // get the group id of the node\n      var groupId = event.target.parentElement.id;\n\n      if (groupId != null) {\n\n        // get the node\n        var node = this.getNodeByGroupId(groupId);\n\n        if (node != null) {\n          // make the node highlighted\n          this.setHighlightedElement(node);\n        }\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is released on a node\n   * @param event the mouse up event\n   */\n  nodeMouseUp(event) {\n\n    if (this.drawingLink && this.activeLink != null) {\n      /*\n       * the student is creating a link and has just released the mouse\n       * over a node to connect the destination node of the link\n       */\n\n      // get the group id of the node\n      var groupId = event.target.parentElement.id;\n\n      if (groupId != null) {\n\n        // get the node\n        var node = this.getNodeByGroupId(groupId);\n\n        if (node != null) {\n\n          // get the source node of the link\n          var sourceNode = this.activeLink.sourceNode;\n          var sourceNodeGroupId = sourceNode.getGroupId();\n\n          if (sourceNodeGroupId == groupId) {\n            /*\n             * if the source of the link is the same as the\n             * destination node, we will not connect the link\n             */\n            this.activeLink.remove();\n            this.activeLink = null;\n          } else {\n            /*\n             * the source node is different than the destination\n             * node so we will connect the link\n             */\n\n            // set the destination node of the link\n            this.activeLink.setDestination(node);\n\n            // make the link the active link\n            this.addLink(this.activeLink);\n\n            // highlight the link\n            this.setHighlightedElement(this.activeLink);\n\n            /*\n             * set the link as a newly created link so that if the\n             * student clicks the cancel button, we will remove\n             * the link\n             */\n            this.newlyCreatedLink = this.activeLink;\n\n            // display the modal overlay\n            this.displayLinkTypeChooserModalOverlay = true;\n\n            // handle the student data changing\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n\n    // the link has been connected so we are no longer drawing the link\n    this.drawingLink = false;\n  }\n\n  /**\n   * Called when a link delete button is clicked\n   * @param event the mouse click event\n   * @param link the link to delete\n   */\n  linkDeleteButtonClicked(event, link) {\n\n    if (link != null) {\n\n      // remove the link from our array of links\n      this.removeLink(link);\n\n      // handle the student data changing\n      this.studentDataChanged();\n    }\n\n    // hide the link type chooser\n    this.hideLinkTypeChooser();\n  }\n\n  /**\n   * Called when the mouse is clicked down on a connector. This will start\n   * creating a link.\n   * @param event the mouse down event\n   */\n  connectorMouseDown(event) {\n\n    // set the flag that we are drawing a link\n    this.drawingLink = true;\n\n    // get the connector (the svg circle)\n    var connector = event.target;\n\n    /*\n     * disable node dragging so that the node isn't dragged when the\n     * link head is being dragged\n     */\n    this.disableNodeDragging();\n\n    // get the node\n    var node = this.getNodeByConnectorId(connector.id);\n\n    // get the center of the image\n    var x = node.cx();\n    var y = node.cy();\n\n    // get a new ConceptMapLinkId e.g. 'studentLink3'\n    var newConceptMapLinkId = this.getNewConceptMapLinkId();\n\n    /*\n     * we will not know what the original id is until the student has\n     * selected a link type\n     */\n    var originalId = null;\n\n    // create a link that comes out of the node\n    var link = this.ConceptMapService.newConceptMapLink(this.draw, newConceptMapLinkId, originalId, node);\n\n    // set the link mouse events\n    this.setLinkMouseEvents(link);\n\n    // remember the active link\n    this.activeLink = link;\n\n    // flag for determining if we have set the link curvature\n    this.linkCurvatureSet = false;\n\n    // remember the location of the center of the connector\n    this.activeLinkStartX = node.connectorCX();\n    this.activeLinkStartY = node.connectorCY();\n\n    // highlight the link\n    this.setHighlightedElement(link);\n\n    // clear the active node\n    this.clearActiveNode();\n\n    // make the source node the active node\n    this.setActiveNode(node);\n  }\n\n  /**\n   * Set the link mouse events for a link\n   * @param link the ConceptMapLink\n   */\n  setLinkMouseEvents(link) {\n\n    // set the link mouse down listener\n    link.setLinkMouseDown((event) => {\n      this.linkMouseDown(event);\n    });\n\n    // set the link text mouse down listener\n    link.setLinkTextMouseDown((event) => {\n      this.linkTextMouseDown(event);\n    });\n\n    // set the link mouse over listener\n    link.setLinkMouseOver((event) => {\n      this.linkMouseOver(event);\n    });\n\n    // set the link mouse out listener\n    link.setLinkMouseOut((event) => {\n      this.linkMouseOut(event);\n    });\n\n    // set the delete button clicked event for the link\n    link.setDeleteButtonClicked((event) => {\n      this.linkDeleteButtonClicked(event, link);\n    });\n  }\n\n  /**\n   * Called when the mouse is clicked down on a link\n   * @param event the mouse down event\n   */\n  linkMouseDown(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    if (link != null) {\n      // make the link highlighted\n      this.setHighlightedElement(link);\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on a link text\n   * @param event the mouse down event\n   */\n  linkTextMouseDown(event) {\n\n    var linkGroupId = null;\n\n    /*\n     * the link group id is set into the text group in the linkGroupId\n     * variable. the text group hierarchy looks like this\n     * text group > text > tspan\n     * text group > rect\n     */\n    if (event.target.nodeName == 'tspan') {\n      linkGroupId = event.target.parentElement.parentElement.linkGroupId;\n    } else if (event.target.nodeName == 'text') {\n      linkGroupId = event.target.parentElement.linkGroupId;\n    } else if (event.target.nodeName == 'rect') {\n      linkGroupId = event.target.parentElement.linkGroupId;\n    }\n\n    if (linkGroupId != null) {\n\n      // get the link\n      var link = this.getLinkByGroupId(linkGroupId);\n\n      if (link != null) {\n        // make the link highlighted\n        this.setHighlightedElement(link);\n      }\n    }\n\n  }\n\n  /**\n   * Called when the mouse is over a link\n   * @param event the mouse over event\n   */\n  linkMouseOver(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    if (link != null) {\n      // show the delete button for the link\n      link.showDeleteButton();\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a link\n   * @param event the mouse out event\n   */\n  linkMouseOut(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    // hide the delete button if the link is not the highlighted link\n    if (link != null && link != this.highlightedElement) {\n      link.hideDeleteButton();\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on the delete button of a node\n   * @param event the mouse down event\n   */\n  nodeDeleteButtonMouseDown(event) {\n\n    if (event.target.parentElement != null) {\n\n      // get the group id\n      var groupId = event.target.parentElement.parentElement.id;\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n\n        // remove the node from our array of nodes\n        this.removeNode(node);\n\n        // handle the student data changing\n        this.studentDataChanged();\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is over a node delete button\n   * @param event the mouse over event\n   */\n  nodeDeleteButtonMouseOver(event) {\n\n    // get the node group id\n    var groupId = event.target.parentElement.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        /*\n         * make the node active so that the border and delete button\n         * shows\n         */\n        this.setActiveNode(node);\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a node delete button\n   * @param event the mouse over event\n   */\n  nodeDeleteButtonMouseOut(event) {\n\n    // get the group id\n    var groupId = event.target.parentElement.parentElement.id;\n\n    // get the node\n    var node = this.getNodeByGroupId(groupId);\n\n    if (node != null) {\n      // make the node inactive by clearing the active node\n      this.clearActiveNode(node);\n    }\n  }\n\n  /**\n   * Called when the node is dragged\n   * @param event the drag event\n   */\n  nodeDragMove(event) {\n\n    // get the group id\n    var groupId = event.target.id;\n\n    // get the node\n    var node = this.getNodeByGroupId(groupId);\n\n    if (node != null) {\n      // handle the node being dragged\n      node.dragMove(event);\n    }\n\n    // handle the student data changing\n    this.studentDataChanged();\n  }\n\n  /**\n   * Get the group id of an element. All elements of a node or link are\n   * contained in a group. These groups are the children of the main svg\n   * element.\n   * for example a node's image element will be located here\n   * svg > group > image\n   * for example a link's path element will be located here\n   * svg > group > path\n   *\n   * @param element get the group id of this element\n   * @returns the group id\n   */\n  getGroupId(element) {\n\n    var groupId = null;\n    var currentElement = element;\n    var previousId = null;\n\n    // loop until we have reached the svg element\n    while (currentElement != null) {\n\n      if (currentElement.tagName == 'svg') {\n        // base case. we have found the svg element.\n\n        // the group id will be the previous id we saw\n        groupId = previousId;\n\n        // set the current element to null so that the while loop ends\n        currentElement = null;\n      } else {\n        // remember the element id\n        previousId = currentElement.id;\n\n        /*\n         * set the current element to the parent to continue searching\n         * up the hierarchy\n         */\n        currentElement = currentElement.parentElement;\n      }\n    }\n\n    return groupId;\n  }\n\n  /**\n   * Save the starter concept map\n   */\n  saveStarterConceptMap() {\n\n    let answer = confirm(this.$translate('conceptMap.areYouSureYouWantToSaveTheStarterConceptMap'));\n\n    if (answer) {\n      // get the concept map data\n      var conceptMapData = this.getConceptMapData();\n\n      // set the starter concept map data\n      this.authoringComponentContent.starterConceptMap = conceptMapData;\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Delete the starter concept map\n   */\n  deleteStarterConceptMap() {\n\n    let answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteTheStarterConceptMap'));\n\n    if (answer) {\n      // set the starter concept map data\n      this.authoringComponentContent.starterConceptMap = null;\n\n      // clear the concept map\n      this.clearConceptMap();\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Remove all the links and nodes\n   */\n  clearConceptMap() {\n\n    // remove all the links from the svg and the array of links\n    this.removeAllLinks();\n\n    // remove all the nodes from the svg and the array of nodes\n    this.removeAllNodes();\n  }\n\n  /**\n   * Reset the concept map data. We will clear the concept map data and\n   * if there is starter concept map data we will set it into the concept map.\n   */\n  resetConceptMap() {\n\n    // ask the student if they are sure they want to reset their work\n    var message = this.$translate('conceptMap.areYouSureYouWantToResetYourWork');\n    var answer = confirm(message);\n\n    if (answer) {\n      // the student answered yes to reset their work\n\n      // clear the concept map\n      this.clearConceptMap();\n\n      if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (this.componentContent.starterConceptMap != null) {\n\n        // get the starter concept map\n        var conceptMapData = this.componentContent.starterConceptMap;\n\n        // populate the starter concept map data into the component\n        this.populateConceptMapData(conceptMapData);\n      }\n    }\n  }\n\n  /**\n   * Show the auto feedback that was generated when the student previously\n   * clicked \"Check Answer\".\n   */\n  showAutoFeedback() {\n\n    // show the auto feedback in a modal dialog\n    this.$mdDialog.show(\n      this.$mdDialog.alert()\n      .parent(angular.element(document.querySelector('#' + this.feedbackContainerId)))\n      .clickOutsideToClose(true)\n      .title(this.$translate('FEEDBACK'))\n      .htmlContent(this.autoFeedbackString)\n      .ariaLabel(this.$translate('FEEDBACK'))\n      .ok(this.$translate('CLOSE'))\n    );\n  }\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * The authoring view show save button checkbox was clicked\n   */\n  authoringViewShowSaveButtonClicked() {\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The authoring view show submit button checkbox was clicked\n   */\n  authoringViewShowSubmitButtonClicked() {\n\n    if (!this.authoringComponentContent.showSubmitButton) {\n      /*\n       * we are not showing the submit button to the student so\n       * we will clear the max submit count\n       */\n      this.authoringComponentContent.maxSubmitCount = null;\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose the background image\n   */\n  chooseBackgroundImage() {\n\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = 'background';\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose an image for the node\n   * @param conceptMapNodeId the id of the node in the concept map\n   */\n  chooseNodeImage(conceptMapNodeId) {\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = conceptMapNodeId;\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n\n  /**\n   * Check whether we need to show the snip button\n   * @return whether to show the snip button\n   */\n  showSnipButton() {\n    if (this.NotebookService.isNotebookEnabled() && this.isSnipButtonVisible) {\n      return true;\n    } else {\n      return false;\n    }\n  }\n\n  /**\n   * Snip the concept map by converting it to an image\n   * @param $event the click event\n   */\n  snip($event) {\n    // get the svg element. this will obtain an array.\n    var svgElement = angular.element('#svg_' + this.nodeId + '_' + this.componentId);\n\n    if (svgElement != null && svgElement.length > 0) {\n      // get the svg element\n      svgElement = svgElement[0];\n\n      // get the svg element as a string\n      var serializer = new XMLSerializer();\n      var svgString = serializer.serializeToString(svgElement);\n\n      // find all the images in the svg and replace them with Base64 images\n      this.ConceptMapService.getHrefToBase64ImageReplacements(svgString).then((images) => {\n\n        /*\n         * Loop through all the image objects. Each object contains\n         * an image href and a Base64 image.\n         */\n        for (var i = 0; i < images.length; i++) {\n\n          // get an image object\n          var imagePair = images[i];\n\n          // get the image href e.g. /wise/curriculum/25/assets/Sun.png\n          var imageHref = imagePair.imageHref;\n\n          // get the Base64 image\n          var base64Image = imagePair.base64Image;\n\n          // create a regex to match the image href\n          var imageRegEx = new RegExp(imageHref, 'g');\n\n          /*\n           * replace all the instances of the image href with the\n           * Base64 image\n           */\n          svgString = svgString.replace(imageRegEx, base64Image);\n        }\n\n        // create a canvas to draw the image on\n        var myCanvas = document.createElement('canvas');\n        var ctx = myCanvas.getContext('2d');\n\n        // create an svg blob\n        var svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n        var domURL = self.URL || self.webkitURL || self;\n        var url = domURL.createObjectURL(svg);\n        var image = new Image();\n\n        /*\n         * set the UtilService in a local variable so we can access it\n         * in the onload callback function\n         */\n        var thisUtilService = this.UtilService;\n\n        // the function that is called after the image is fully loaded\n        image.onload = (event) => {\n\n          // get the image that was loaded\n          var image = event.target;\n\n          // set the dimensions of the canvas\n          myCanvas.width = image.width;\n          myCanvas.height = image.height;\n          ctx.drawImage(image, 0, 0);\n\n          // get the canvas as a Base64 string\n          var base64Image = myCanvas.toDataURL('image/png');\n\n          // get the image object\n          var imageObject = thisUtilService.getImageObjectFromBase64String(base64Image, false);\n\n          // create a notebook item with the image populated into it\n          this.NotebookService.addNewItem($event, imageObject);\n        };\n\n        // set the src of the image so that the image gets loaded\n        image.src = url;\n      });\n    }\n  }\n\n  /**\n   * Add a connected component\n   */\n  addConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.updateOn = 'change';\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  deleteConnectedComponent(index) {\n\n    if (this.authoringComponentContent.connectedComponents != null) {\n      this.authoringComponentContent.connectedComponents.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Set the show submit button value\n   * @param show whether to show the submit button\n   */\n  setShowSubmitButtonValue(show) {\n\n    if (show == null || show == false) {\n      // we are hiding the submit button\n      this.authoringComponentContent.showSaveButton = false;\n      this.authoringComponentContent.showSubmitButton = false;\n    } else {\n      // we are showing the submit button\n      this.authoringComponentContent.showSaveButton = true;\n      this.authoringComponentContent.showSubmitButton = true;\n    }\n\n    /*\n     * notify the parent node that this component is changing its\n     * showSubmitButton value so that it can show save buttons on the\n     * step or sibling components accordingly\n     */\n    this.$scope.$emit('componentShowSubmitButtonValueChanged', {nodeId: this.nodeId, componentId: this.componentId, showSubmitButton: show});\n  }\n\n  /**\n   * The showSubmitButton value has changed\n   */\n  showSubmitButtonValueChanged() {\n\n    /*\n     * perform additional processing for when we change the showSubmitButton\n     * value\n     */\n    this.setShowSubmitButtonValue(this.authoringComponentContent.showSubmitButton);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      let mergedNodes = [];\n      let mergedLinks = [];\n      let backgroundPath = null;\n      let stretchBackground = null;\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n\n        if (componentState.componentType == 'ConceptMap') {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            let conceptMapData = studentData.conceptMapData;\n\n            if (conceptMapData != null) {\n              if (conceptMapData.nodes != null) {\n                // add the nodes to our merged nodes\n                mergedNodes = mergedNodes.concat(conceptMapData.nodes);\n              }\n\n              if (conceptMapData.links != null) {\n                // add the links to our merged links\n                mergedLinks = mergedLinks.concat(conceptMapData.links);\n              }\n\n              if (conceptMapData.backgroundPath != null &&\n                  conceptMapData.backgroundPath != '') {\n                backgroundPath = conceptMapData.backgroundPath;\n                stretchBackground = conceptMapData.stretchBackground;\n              }\n            }\n          }\n        } else if (componentState.componentType == 'Draw' ||\n            componentState.componentType == 'Embedded' ||\n            componentState.componentType == 'Graph' ||\n            componentState.componentType == 'Label' ||\n            componentState.componentType == 'Table') {\n          let connectedComponent =\n              this.UtilService.getConnectedComponentByComponentState(this.componentContent, componentState);\n          if (connectedComponent.importWorkAsBackground === true) {\n            this.setComponentStateAsBackgroundImage(componentState);\n          }\n        }\n      }\n\n      if (this.componentContent.background != null &&\n          this.componentContent.background != '') {\n        // use the background from this component\n        backgroundPath = this.componentContent.background;\n        if (this.componentContent.stretchBackground) {\n          stretchBackground = this.componentContent.stretchBackground;\n        }\n      }\n\n      // set the merged nodes and links into the merged component state\n      mergedComponentState.studentData = {};\n      mergedComponentState.studentData.conceptMapData = {};\n      mergedComponentState.studentData.conceptMapData.nodes = mergedNodes;\n      mergedComponentState.studentData.conceptMapData.links = mergedLinks;\n      mergedComponentState.studentData.conceptMapData.backgroundPath = backgroundPath;\n      if (stretchBackground != null) {\n        mergedComponentState.studentData.conceptMapData.stretchBackground = stretchBackground;\n      }\n    }\n\n    /*\n     * inject the asset path so that the file name is changed to\n     * a relative path\n     * e.g.\n     * \"Sun.png\"\n     * will be changed to\n     * \"/wise/curriculum/108/assets/Sun.png\"\n     */\n    mergedComponentState = this.ProjectService.injectAssetPaths(mergedComponentState);\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Create an image from a component state and set the image as the background.\n   * @param componentState A component state.\n   */\n  setComponentStateAsBackgroundImage(componentState) {\n    this.UtilService.generateImageFromComponentState(componentState).then((image) => {\n      this.setBackgroundImage(image.url);\n    });\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'importWork';\n          this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      delete connectedComponent.importWorkAsBackground;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n      this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * If the component type is a certain type, we will set the importWorkAsBackground\n   * field to true.\n   * @param connectedComponent The connected component object.\n   */\n  authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent) {\n    let componentType = this.authoringGetConnectedComponentType(connectedComponent);\n    if (componentType == 'Draw' ||\n        componentType == 'Embedded' ||\n        componentType == 'Graph' ||\n        componentType == 'Label' ||\n        componentType == 'Table') {\n      connectedComponent.importWorkAsBackground = true;\n    } else {\n      delete connectedComponent.importWorkAsBackground;\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Set the background image on the svg canvas\n   * @param backgroundPath the absolute path to the background image\n   * @param stretchBackground whether to stretch the background to cover the\n   * whole svg background\n   */\n  setBackgroundImage(backgroundPath, stretchBackground) {\n    this.background = backgroundPath;\n    this.stretchBackground = stretchBackground;\n\n    if (stretchBackground) {\n      // stretch the background to fit the whole svg element\n      this.backgroundSize = '100% 100%';\n    } else {\n      // use the original dimensions of the background image\n      this.backgroundSize = '';\n    }\n  }\n\n  /**\n   * The show JSON button was clicked to show or hide the JSON authoring\n   */\n  showJSONButtonClicked() {\n    // toggle the JSON authoring textarea\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n\n    if (this.jsonStringChanged && !this.showJSONAuthoring) {\n      /*\n       * the author has changed the JSON and has just closed the JSON\n       * authoring view so we will save the component\n       */\n      this.advancedAuthoringViewComponentChanged();\n\n      // scroll to the top of the component\n      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });\n\n      this.jsonStringChanged = false;\n    }\n  }\n\n  /**\n   * The author has changed the JSON manually in the advanced view\n   */\n  authoringJSONChanged() {\n    this.jsonStringChanged = true;\n  }\n\n  /**\n   * The \"Import Work As Background\" checkbox was clicked.\n   * @param connectedComponent The connected component associated with the\n   * checkbox.\n   */\n  authoringImportWorkAsBackgroundClicked(connectedComponent) {\n    if (!connectedComponent.importWorkAsBackground) {\n      delete connectedComponent.importWorkAsBackground;\n    }\n    this.authoringViewComponentChanged();\n  }\n};\n\nConceptMapController.$inject = [\n  '$anchorScroll',\n  '$filter',\n  '$injector',\n  '$location',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$scope',\n  '$timeout',\n  'AnnotationService',\n  'ConceptMapService',\n  'ConfigService',\n  'CRaterService',\n  'NodeService',\n  'NotebookService',\n  'ProjectService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default ConceptMapController;\n"]}
->>>>>>> develop
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strict';\n\nimport 'svg.js';\nimport 'svg.draggable.js';\n\nclass ConceptMapController {\n\n  constructor($anchorScroll,\n      $filter,\n      $injector,\n      $location,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      $timeout,\n      AnnotationService,\n      ConceptMapService,\n      ConfigService,\n      CRaterService,\n      NodeService,\n      NotebookService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$location = $location;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$timeout = $timeout;\n    this.AnnotationService = AnnotationService;\n    this.ConceptMapService = ConceptMapService;\n    this.ConfigService = ConfigService;\n    this.CRaterService = CRaterService;\n    this.NodeService = NodeService;\n    this.NotebookService = NotebookService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.idToOrder = this.ProjectService.idToOrder;\n\n    this.$translate = this.$filter('translate');\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // holds the text that the student has typed\n    this.studentResponse = '';\n\n    // holds student attachments like assets\n    this.attachments = [];\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether the student work has changed since last submit\n    this.isSubmitDirty = false;\n\n    // message to show next to save/submit buttons\n    this.saveMessage = {\n      text: '',\n      time: ''\n    };\n\n    // whether this component is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // whether rich text editing is enabled\n    this.isRichTextEnabled = false;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // whether the prompt is shown or not\n    this.isPromptVisible = true;\n\n    // whether the save button is shown or not\n    this.isSaveButtonVisible = false;\n\n    // whether the submit button is shown or not\n    this.isSubmitButtonVisible = false;\n\n    // whether the submit button is disabled\n    this.isSubmitButtonDisabled = false;\n\n    // whether the snip table button is shown or not\n    this.isSnipButtonVisible = true;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // the latest annotations\n    this.latestAnnotations = null;\n\n    // used to hold a message dialog if we need to use one\n    this.messageDialog = null;\n\n    // default width and height for the svg\n    this.width = 800;\n    this.height = 600;\n\n    // the available nodes the students can choose\n    this.availableNodes = [];\n\n    // the available links the students can choose\n    this.availableLinks = [];\n\n    // the node instances the students create\n    this.nodes = [];\n\n    // the link instances the students create\n    this.links = [];\n\n    // flag to display the link type chooser\n    this.displayLinkTypeChooser = false;\n\n    // flag to display the modal overlay for the link type chooser\n    this.displayLinkTypeChooserModalOverlay = false;\n\n    // the selected link type\n    this.selectedLinkType = null;\n\n    // flag for whether we have initialized the link type modal overlay\n    this.initializedDisplayLinkTypeChooserModalOverlay = false;\n\n    // default values for the modal width and height\n    this.modalWidth = 800;\n    this.modalHeight = 600;\n\n    /*\n     * used to remember the node the student has started dragging to create\n     * so that we know what node to create once they let go off the mouse\n     * on the svg element\n     */\n    this.selectedNode = null;\n\n    /*\n     * used to remember the offset of the mouse relative to the upper left\n     * of the node image the student started dragging to create a new node\n     * instance\n     */\n    this.tempOffsetX = 0;\n    this.tempOffsetY = 0;\n\n    let themePath = this.ProjectService.getThemePath();\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      { type: 'ConceptMap' },\n      { type: 'Draw' },\n      { type: 'Embedded' },\n      { type: 'Graph' },\n      { type: 'Label' },\n      { type: 'Table' }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    // the options for authoring the should or should not value in rules\n    this.shouldOptions = [\n      {\n        value: false, label: this.$translate('conceptMap.should')\n      },\n      {\n        value: true, label: this.$translate('conceptMap.shouldNot')\n      }\n    ];\n\n    // the auto feedback string\n    this.autoFeedbackString = '';\n\n    // counter to keep track of the number of submits\n    this.submitCounter = 0;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n      this.setBackgroundImage(this.componentContent.background,\n                  this.componentContent.stretchBackground);\n\n      // set the id of the svg and other display elements\n      this.svgId = 'svg_' + this.$scope.nodeId + '_' + this.componentId;\n      this.conceptMapContainerId = 'conceptMapContainer_' + this.$scope.nodeId + '_' + this.componentId;\n      this.selectNodeBarId = 'selectNodeBar_' + this.$scope.nodeId + '_' + this.componentId;\n      this.feedbackContainerId = 'feedbackContainer_' + this.$scope.nodeId + '_' + this.componentId;\n\n      if (this.componentContent.width != null) {\n        this.width = this.componentContent.width;\n      }\n\n      if (this.componentContent.height != null) {\n        this.height = this.componentContent.height;\n      }\n\n      if (this.mode === 'student') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.availableNodes = this.componentContent.nodes;\n        this.availableLinks = this.componentContent.links;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n      } else if (this.mode === 'grading' || this.mode === 'gradingRevision') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n\n        let componentState = this.$scope.componentState;\n\n        if (componentState) {\n          // set ids for the svg and other display elements using the componentStateId (so we have unique ids when showing revisions)\n          /*\n           * the student has work for this component so we will use\n           * the node id, component id, and workgroup id, and\n           * componentStateId for the svg id\n           */\n          let idInfo = this.nodeId + '_' + this.componentId + '_' + this.workgroupId + '_' + componentState.id;\n          if (this.mode === 'gradingRevision') {\n            idInfo = '_gradingRevision_' + idInfo\n            this.svgId = 'svg_' + idInfo;\n            this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n            this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n            this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n          } else {\n            this.svgId = 'svg_' + idInfo;\n            this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n            this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n            this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n          }\n        } else {\n          /*\n           * the student does not have any work for this component so\n           * we will use the node id, component id, and workgroup id\n           * for the svg id\n           */\n          let idInfo = this.nodeId + '_' + this.componentId + '_' + this.workgroupId;\n          this.svgId = 'svg_' + idInfo;\n          this.conceptMapContainerId = 'conceptMapContainer_' + idInfo;\n          this.selectNodeBarId = 'selectNodeBar_' + idInfo;\n          this.feedbackContainerId = 'feedbackContainer_' + idInfo;\n\n        }\n      } else if (this.mode === 'onlyShowWork') {\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isSnipButtonVisible = false;\n        this.isDisabled = true;\n\n        var componentState = this.$scope.componentState;\n\n        if (componentState == null) {\n          /*\n           * the student does not have any work for this component so\n           * we will use the node id, component id, and workgroup id\n           * for the svg id\n           */\n          this.svgId = 'svgOnlyShowWork_' + this.nodeId + '_' + this.componentId + '_' + this.workgroupId;\n        } else {\n          /*\n           * the student has work for this component so we will use\n           * the node id, component id, and component state id\n           * for the svg id\n           */\n          this.svgId = 'svgOnlyShowWork_' + this.nodeId + '_' + this.componentId + '_' + componentState.id;\n        }\n      } else if (this.mode === 'showPreviousWork') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isSnipButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'authoring') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.availableNodes = this.componentContent.nodes;\n        this.availableLinks = this.componentContent.links;\n\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n          this.isSaveButtonVisible = this.componentContent.showSaveButton;\n          this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n          this.availableNodes = this.componentContent.nodes;\n          this.availableLinks = this.componentContent.links;\n          this.width = this.componentContent.width;\n          this.height = this.componentContent.height;\n          this.setBackgroundImage(this.componentContent.background,\n                      this.componentContent.stretchBackground);\n\n          /*\n           * make sure the SVG element can be accessed. we need to\n           * perform this check because this watch is getting fired\n           * before angular sets the svgId on the svg element. if\n           * setupSVG() is called before the svgId is set on the svg\n           * element, we will get an error.\n           */\n          if (document.getElementById(this.svgId) != null) {\n            this.setupSVG();\n          }\n        }.bind(this), true);\n      }\n\n      /*\n       * Call the initializeSVG() after a timeout so that angular has a\n       * chance to set the svg element id before we start using it. If we\n       * don't wait for the timeout, the svg id won't be set when we try\n       * to start referencing the svg element.\n       */\n      this.$timeout(angular.bind(this, this.initializeSVG));\n    }\n\n    /**\n     * Returns true iff there is student work that hasn't been saved yet\n     */\n    this.$scope.isDirty = function() {\n      return this.$scope.conceptMapController.isDirty;\n    }.bind(this);\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @param isSubmit boolean whether the request is coming from a submit\n     * action (optional; default is false)\n     * @return a promise of a component state containing the student data\n     */\n    this.$scope.getComponentState = function(isSubmit) {\n      var deferred = this.$q.defer();\n      let getState = false;\n      let action = 'change';\n\n      if (isSubmit) {\n        if (this.$scope.conceptMapController.isSubmitDirty) {\n          getState = true;\n          action = 'submit';\n        }\n      } else {\n        if (this.$scope.conceptMapController.isDirty) {\n          getState = true;\n          action = 'save';\n        }\n      }\n\n      if (getState) {\n        // create a component state populated with the student data\n        this.$scope.conceptMapController.createComponentState(action).then((componentState) => {\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', function(event, args) {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n\n        // trigger the submit\n        var submitTriggeredBy = 'nodeSubmitButton';\n        this.submit(submitTriggeredBy);\n      }\n    }.bind(this));\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', angular.bind(this, function(event, args) {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // set isDirty to false because the component state was just saved and notify node\n        this.isDirty = false;\n        this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: false});\n\n        let isAutoSave = componentState.isAutoSave;\n        let isSubmit = componentState.isSubmit;\n        let clientSaveTime = componentState.clientSaveTime;\n\n        // set save message\n        if (isSubmit) {\n          this.setSaveMessage(this.$translate('SUBMITTED'), clientSaveTime);\n\n          this.lockIfNecessary();\n\n          // set isSubmitDirty to false because the component state was just submitted and notify node\n          this.isSubmitDirty = false;\n          this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        } else if (isAutoSave) {\n          this.setSaveMessage(this.$translate('AUTO_SAVED'), clientSaveTime);\n        } else {\n          this.setSaveMessage(this.$translate('SAVED'), clientSaveTime);\n        }\n      }\n    }));\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', function(event, args) {\n\n    }.bind(this));\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'background') {\n                // the target is the background image\n\n                // set the background file name\n                this.authoringComponentContent.background = fileName;\n\n                // the authoring component content has changed so we will save the project\n                this.authoringViewComponentChanged();\n              } else if (args.target != null && args.target.indexOf('node') == 0) {\n                // the target is a node image\n\n                // get the concept map node\n                var node = this.authoringViewGetNodeById(args.target);\n\n                if (node != null) {\n                  // set the file name of the node\n                  node.fileName = fileName;\n                }\n\n                // the authoring component content has changed so we will save the project\n                this.authoringViewComponentChanged();\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n  }\n\n  /**\n   * Initialize the SVG\n   */\n  initializeSVG() {\n\n    // setup the svg\n    this.setupSVG();\n\n    var componentState = null;\n\n    // set whether rich text is enabled\n    this.isRichTextEnabled = this.componentContent.isRichTextEnabled;\n\n    // set whether studentAttachment is enabled\n    this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n    // get the component state from the scope\n    componentState = this.$scope.componentState;\n\n    if (this.mode == 'student') {\n      if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {\n        // we will show work from another component\n        this.handleConnectedComponents();\n      }  else if (this.ConceptMapService.componentStateHasStudentWork(componentState, this.componentContent)) {\n        /*\n         * the student has work so we will populate the work into this\n         * component\n         */\n\n        /*\n         * inject the asset path so that the file name is changed to\n         * a relative path\n         * e.g.\n         * \"Sun.png\"\n         * will be changed to\n         * \"/wise/curriculum/108/assets/Sun.png\"\n         */\n        componentState = this.ProjectService.injectAssetPaths(componentState);\n\n        this.setStudentWork(componentState);\n      } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (componentState == null) {\n        /*\n         * only import work if the student does not already have\n         * work for this component\n         */\n\n        // check if we need to import work\n        var importPreviousWorkNodeId = this.componentContent.importPreviousWorkNodeId;\n        var importPreviousWorkComponentId = this.componentContent.importPreviousWorkComponentId;\n\n        if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n          /*\n           * check if the node id is in the field that we used to store\n           * the import previous work node id in\n           */\n          importPreviousWorkNodeId = this.componentContent.importWorkNodeId;\n        }\n\n        if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n          /*\n           * check if the component id is in the field that we used to store\n           * the import previous work component id in\n           */\n          importPreviousWorkComponentId = this.componentContent.importWorkComponentId;\n        }\n\n        if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n          // import the work from the other component\n          this.importWork();\n        } else if (this.componentContent.starterConceptMap != null) {\n          /*\n           * the student has not done any work and there is a starter\n           * concept map so we will populate the concept map with\n           * the starter\n           */\n\n          // get the starter concept map\n          var conceptMapData = this.componentContent.starterConceptMap;\n\n          // populate the concept map data into the component\n          this.populateConceptMapData(conceptMapData);\n        }\n      }\n    } else {\n      if (componentState == null) {\n        this.populateStarterConceptMap();\n      } else {\n        /*\n         * inject the asset path so that the file name is changed to\n         * a relative path\n         * e.g.\n         * 'Sun.png'\n         * will be changed to\n         * '/wise/curriculum/108/assets/Sun.png'\n         */\n        componentState = this.ProjectService.injectAssetPaths(componentState);\n\n        // populate the student work into this component\n        this.setStudentWork(componentState);\n      }\n    }\n\n    // check if the student has used up all of their submits\n    if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n      /*\n       * the student has used up all of their chances to submit so we\n       * will disable the submit button\n       */\n      this.isSubmitButtonDisabled = true;\n    }\n\n    // populate the previous feedback\n    if (this.latestAnnotations != null) {\n\n      var autoFeedbackString = '';\n\n      // obtain the previous score annotation if any\n      if (this.latestAnnotations.score != null) {\n\n        // get the annotation data\n        var data = this.latestAnnotations.score.data;\n\n        if (data != null) {\n\n          // get the score and max auto score\n          var score = data.value;\n          var maxAutoScore = data.maxAutoScore;\n\n          autoFeedbackString += this.$translate('SCORE') + ': ' + score;\n\n          if (maxAutoScore != null && maxAutoScore != '') {\n            // show the max score as the denominator\n            autoFeedbackString += '/' + maxAutoScore;\n          }\n        }\n      }\n\n      // obtain the previous comment annotation if any\n      if (this.latestAnnotations.comment != null) {\n\n        // get the annotation data\n        var data = this.latestAnnotations.comment.data;\n\n        if (data != null) {\n          if (autoFeedbackString != '') {\n            // add a new line if the result string is not empty\n            autoFeedbackString += '<br/>';\n          }\n\n          // get the comment\n          var comment = data.value;\n          autoFeedbackString += this.$translate('FEEDBACK') + ': ' + comment;\n        }\n      }\n\n      /*\n       * set the previous auto feedback into the field that is used\n       * to display the auto feedback to the student when they click\n       * on the show feedback button\n       */\n      this.autoFeedbackString = autoFeedbackString;\n    }\n\n    // make the nodes draggable\n    this.enableNodeDragging();\n\n    // check if we need to lock this component\n    this.calculateDisabled();\n\n\n    if (this.$scope.$parent.nodeController != null) {\n      // register this component with the parent node\n      this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n    }\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        var conceptMapData = studentData.conceptMapData;\n\n        var submitCounter = studentData.submitCounter;\n\n        if (submitCounter != null) {\n          // populate the submit counter\n          this.submitCounter = submitCounter;\n        }\n\n        if (conceptMapData != null) {\n\n          // populate the concept map data into the component\n          this.populateConceptMapData(conceptMapData);\n        }\n\n        var attachments = studentData.attachments;\n\n        if (attachments != null) {\n          this.attachments = attachments;\n        }\n\n        this.processLatestSubmit();\n      }\n    }\n  };\n\n  /**\n   * Populate the concept map data into the component\n   * @param conceptMapData the concept map data which contains an array\n   * of nodes and an array of links\n   */\n  populateConceptMapData(conceptMapData) {\n\n    if (conceptMapData != null) {\n\n      // clear the existing nodes in the student view\n      this.nodes = [];\n\n      var nodes = conceptMapData.nodes;\n\n      if (nodes != null) {\n\n        // loop through all the nodes\n        for (var n = 0; n < nodes.length; n++) {\n          var node = nodes[n];\n\n          var instanceId = node.instanceId;\n          var originalId = node.originalId;\n          var filePath = node.fileName;\n          var label = node.label;\n          var x = node.x;\n          var y = node.y;\n          var width = node.width;\n          var height = node.height\n\n          // create a ConceptMapNode\n          var conceptMapNode = this.ConceptMapService.newConceptMapNode(this.draw, instanceId, originalId, filePath, label, x, y, width, height);\n\n          // add the node to our array of nodes\n          this.addNode(conceptMapNode);\n\n          // set the mouse events on the node\n          this.setNodeMouseEvents(conceptMapNode);\n        }\n      }\n\n      // clear the existing links in the student view\n      this.links = [];\n\n      var links = conceptMapData.links;\n\n      if (links != null) {\n\n        // loop through all the links\n        for (var l = 0; l < links.length; l++) {\n          var link = links[l];\n\n          var instanceId = link.instanceId;\n          var originalId = link.originalId;\n          var sourceNodeId = link.sourceNodeInstanceId;\n          var destinationNodeId = link.destinationNodeInstanceId;\n          var label = link.label;\n          var color = link.color;\n          var curvature = link.curvature;\n          var startCurveUp = link.startCurveUp;\n          var endCurveUp = link.endCurveUp;\n          var sourceNode = null;\n          var destinationNode = null;\n\n          if (sourceNodeId != null) {\n            sourceNode = this.getNodeById(sourceNodeId);\n          }\n\n          if (destinationNodeId != null) {\n            destinationNode = this.getNodeById(destinationNodeId);\n          }\n\n          // create a ConceptMapLink\n          var conceptMapLink = this.ConceptMapService.newConceptMapLink(this.draw, instanceId, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, endCurveUp);\n\n          // add the link to our array of links\n          this.addLink(conceptMapLink);\n\n          // set the mouse events on the link\n          this.setLinkMouseEvents(conceptMapLink);\n        }\n      }\n\n      if (conceptMapData.backgroundPath != null &&\n          conceptMapData.backgroundPath != '') {\n        this.setBackgroundImage(conceptMapData.backgroundPath,\n          conceptMapData.stretchBackground);\n      }\n\n      /*\n       * move the link text group to the front so that they are on top\n       * of links\n       */\n      this.moveLinkTextToFront();\n\n      // move the nodes to the front so that they are on top of links\n      this.moveNodesToFront();\n\n      /*\n       * set a timeout to refresh the link labels so that the rectangles\n       * around the labels are properly resized\n       */\n      this.$timeout(() => {\n        this.refreshLinkLabels();\n      });\n    }\n  }\n\n  /**\n   * Refresh the link labels so that the rectangles around the text\n   * labels are resized to fit the text properly. This is required because\n   * the rectangles are not properly sized when the ConceptMapLinks are\n   * initialized. The rectangles need to be rendered first and then the\n   * labels need to be set in order for the rectangles to be resized properly.\n   * This is why this function is called in a $timeout.\n   */\n  refreshLinkLabels() {\n\n    if (this.nodes != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var node = this.nodes[n];\n\n        if (node != null) {\n          // get the label from the node\n          var label = node.getLabel();\n\n          /*\n           * set the label back into the node so that the rectangle\n           * around the text label is resized to the text\n           */\n          node.setLabel(label);\n        }\n      }\n    }\n\n    if (this.links != null) {\n\n      // loop throgh all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var link = this.links[l];\n\n        if (link != null) {\n          // get the label from the link\n          var label = link.getLabel();\n\n          /*\n           * set the label back into the link so that the rectangle\n           * around the text label is resized to the text\n           */\n          link.setLabel(label);\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if latest component state is a submission and set isSubmitDirty accordingly\n   */\n  processLatestSubmit() {\n    let latestState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n    if (latestState) {\n      if (latestState.isSubmit) {\n        // latest state is a submission, so set isSubmitDirty to false and notify node\n        this.isSubmitDirty = false;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SUBMITTED'), latestState.clientSaveTime);\n      } else {\n        // latest state is not a submission, so set isSubmitDirty to true and notify node\n        this.isSubmitDirty = true;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SAVED'), latestState.clientSaveTime);\n      }\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n    this.isSubmit = false;\n\n    if (this.mode === 'authoring') {\n      /*\n       * we are in authoring mode so we will set isDirty to false here\n       * because the 'componentSaveTriggered' event won't work in\n       * authoring mode\n       */\n      this.isDirty = false;\n    }\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    // trigger the submit\n    var submitTriggeredBy = 'componentSubmitButton';\n    this.submit(submitTriggeredBy);\n  };\n\n  /**\n   * A submit was triggered by the component submit button or node submit button\n   * @param submitTriggeredBy what triggered the submit\n   * e.g. 'componentSubmitButton' or 'nodeSubmitButton'\n   */\n  submit(submitTriggeredBy) {\n\n    if (this.isSubmitDirty) {\n\n      var performSubmit = true;\n\n      if (this.componentContent.maxSubmitCount != null) {\n        // there is a max submit count\n\n        // calculate the number of submits this student has left\n        var numberOfSubmitsLeft = this.componentContent.maxSubmitCount - this.submitCounter;\n\n        var message = '';\n\n        if (numberOfSubmitsLeft <= 0) {\n\n          // the student does not have any more chances to submit\n          alert(this.$translate('conceptMap.youHaveNoMoreChances'));\n          performSubmit = false;\n        } else if (numberOfSubmitsLeft == 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('conceptMap.youHaveOneChance', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          performSubmit = confirm(message);\n        } else if (numberOfSubmitsLeft > 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('conceptMap.youHaveMultipleChances', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          performSubmit = confirm(message);\n        }\n      }\n\n      if (performSubmit) {\n        // increment the submit counter\n        this.submitCounter++;\n\n        // check if the student has used up all of their submits\n        if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n          /*\n           * the student has used up all of their submits so we will\n           * disable the submit button\n           */\n          //this.isDisabled = true;\n          this.isSubmitButtonDisabled = true;\n        }\n\n        // get the custom rule evaluator code that was authored\n        var customRuleEvaluator = this.componentContent.customRuleEvaluator;\n\n        // get the component content\n        var componentContent = this.componentContent;\n\n        // get the student concept map\n        var conceptMapData = this.getConceptMapData();\n\n        var thisConceptMapService = this.ConceptMapService;\n\n        // the result will be stored in this variable\n        var thisResult = {};\n\n        /*\n         * create the any function that can be called in the custom rule\n         * evaluator code. the arguments to the any function are rule names.\n         * for example if we are looking for any of the links below\n         * Sun (Infrared Radiation) Space\n         * Sun (Heat) Space\n         * Sun (Solar Radiation) Space\n         * we will call the any function like this\n         * any(\"Sun (Infrared Radiation) Space\", \"Sun (Heat) Space\", \"Sun (Solar Radiation) Space\")\n         * these dynamic arguments will be placed in the arguments variable\n         */\n        var any = function() {\n          return thisConceptMapService.any(componentContent, conceptMapData, arguments);\n        };\n\n        /*\n         * create the all function that can be called in the custom rule\n         * evaluator code. the arguments to the all function are rule names.\n         * for example if we are looking for all of the links below\n         * Sun (Infrared Radiation) Space\n         * Sun (Heat) Space\n         * Sun (Solar Radiation) Space\n         * we will call the any function like this\n         * all(\"Sun (Infrared Radiation) Space\", \"Sun (Heat) Space\", \"Sun (Solar Radiation) Space\")\n         * these dynamic arguments will be placed in the arguments variable\n         */\n        var all = function() {\n          return thisConceptMapService.all(componentContent, conceptMapData, arguments);\n        }\n\n        /*\n         * create the setResult function that can be called in the custom rule\n         * evaluator code\n         */\n        var setResult = function(result) {\n          thisResult = result;\n        }\n\n        // run the custom rule evaluator\n        eval(customRuleEvaluator);\n\n        // remember the auto feedback result\n        this.autoFeedbackResult = thisResult;\n\n        var resultString = '';\n\n        if (this.componentContent.showAutoScore && thisResult.score != null) {\n          // display the score\n          resultString += this.$translate('SCORE') + ': ' + thisResult.score;\n\n          if (this.componentContent.maxScore != null && this.componentContent.maxScore != '') {\n            // show the max score as the denominator\n            resultString += '/' + this.componentContent.maxScore;\n          }\n        }\n\n        if (this.componentContent.showAutoFeedback && thisResult.feedback != null) {\n          if (resultString != '') {\n            // add a new line if the result string is not empty\n            resultString += '<br/>';\n          }\n\n          // display the feedback\n          resultString += this.$translate('FEEDBACK') + ': ' + thisResult.feedback;\n        }\n\n        if (resultString != '') {\n          // show the auto feedback in a modal dialog\n          this.$mdDialog.show(\n            this.$mdDialog.alert()\n            .clickOutsideToClose(true)\n            .title(this.$translate('FEEDBACK'))\n            .htmlContent(resultString)\n            .ariaLabel(this.$translate('FEEDBACK'))\n            .ok(this.$translate('CLOSE'))\n          );\n        }\n\n        // remember the feedback string\n        this.autoFeedbackString = resultString;\n\n        this.isSubmit = true;\n\n        if (this.mode === 'authoring') {\n          /*\n           * we are in the authoring view so we will set the\n           * latest score and comment annotations manually\n           */\n\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.createComponentState('submit');\n        }\n\n        // tell the parent node that this component wants to submit\n        this.$scope.$emit('componentSubmitTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n      } else {\n        /*\n         * the student has cancelled the submit so if a component state\n         * is created, it will just be a regular save and not submit\n         */\n        this.isSubmit = false;\n      }\n    }\n  };\n\n  lockIfNecessary() {\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flags so we will know we need to save or submit the\n     * student work later\n     */\n    this.isDirty = true;\n    this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: true});\n\n    this.isSubmitDirty = true;\n    this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n\n    // clear out the save message\n    this.setSaveMessage('', null);\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Get the student response\n   */\n  getStudentResponse() {\n    return this.studentResponse;\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    var deferred = this.$q.defer();\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    // get the text the student typed\n    var response = this.getStudentResponse();\n\n    // set the response into the component state\n    var studentData = {};\n    var conceptMapData = this.getConceptMapData();\n    studentData.conceptMapData = conceptMapData;\n\n    // the student submitted this work\n    componentState.isSubmit = this.isSubmit;\n\n    if (this.isSubmit) {\n\n      /*\n       * reset the isSubmit value so that the next component state\n       * doesn't maintain the same value\n       */\n      this.isSubmit = false;\n\n      if (this.autoFeedbackResult != null) {\n        // there is auto feedback\n\n        if (this.autoFeedbackResult.score != null || this.autoFeedbackResult.feedback != null) {\n          // there is an auto score or auto feedback\n\n          // get the values used to create an annotation\n          var runId = this.ConfigService.getRunId();\n          var periodId = this.ConfigService.getPeriodId();\n          var nodeId = this.nodeId;\n          var componentId = this.componentId;\n          var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n          // create an array of annotations to be saved with the component state\n          componentState.annotations = [];\n\n          if (this.autoFeedbackResult.score != null) {\n            // there is an auto score\n\n            // create the data object for the annotation\n            var data = {};\n            data.value = parseFloat(this.autoFeedbackResult.score);\n            data.autoGrader = 'conceptMap';\n\n            if (this.componentContent.maxScore != null) {\n              data.maxAutoScore = parseFloat(this.componentContent.maxScore);\n            }\n\n            // create the auto score annotation\n            var scoreAnnotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n            // add the annotation to the component state\n            componentState.annotations.push(scoreAnnotation);\n\n            if (this.mode === 'authoring') {\n              if (this.latestAnnotations == null) {\n                this.latestAnnotations = {};\n              }\n\n              /*\n               * we are in the authoring view so we will set the\n               * latest score annotation manually\n               */\n              this.latestAnnotations.score = scoreAnnotation;\n            }\n          }\n\n          if (this.autoFeedbackResult.feedback != null) {\n            // there is auto feedback\n\n            // create the data object for the annotation\n            var data = {};\n            data.value = this.autoFeedbackResult.feedback;\n            data.autoGrader = 'conceptMap';\n\n            // create the auto score annotation\n            var commentAnnotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n            // add the annotation to the component state\n            componentState.annotations.push(commentAnnotation);\n\n            if (this.mode === 'authoring') {\n              if (this.latestAnnotations == null) {\n                this.latestAnnotations = {};\n              }\n\n              /*\n               * we are in the authoring view so we will set the\n               * latest comment annotation manually\n               */\n              this.latestAnnotations.comment = commentAnnotation;\n            }\n          }\n        }\n      }\n    }\n\n    // set the submit counter\n    studentData.submitCounter = this.submitCounter;\n\n    // set the student data into the component state\n    componentState.studentData = studentData;\n\n    // set the component type\n    componentState.componentType = 'ConceptMap';\n\n    // set the node id\n    componentState.nodeId = this.nodeId;\n\n    // set the component id\n    componentState.componentId = this.componentId;\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Get the concept map data\n   * @returns an object containing a array of nodes and an array of links\n   */\n  getConceptMapData() {\n    var studentData = {};\n    studentData.nodes = [];\n    studentData.links = [];\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      // get the JSON representation of the node\n      var nodeJSON = node.toJSONObject();\n\n      studentData.nodes.push(nodeJSON);\n    }\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var link = this.links[l];\n\n      // get the JSON representation of the link\n      var linkJSON = link.toJSONObject();\n\n      studentData.links.push(linkJSON);\n    }\n\n    // set the background data into the student data\n    if (this.background != null) {\n      var background = this.background;\n\n      // this is the background file name e.g. background.png\n      studentData.background = background.substring(background.lastIndexOf('/') + 1);\n\n      // this is the background path e.g. /wise/curriculum/108/assets/background.png\n      studentData.backgroundPath = background;\n\n      // whether to stretch the background to fill the svg element\n      studentData.stretchBackground = this.stretchBackground;\n    }\n\n    return studentData;\n  }\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n\n    /*\n     * we don't need to perform any additional processing so we can resolve\n     * the promise immediately\n     */\n    deferred.resolve(componentState);\n  }\n\n  /**\n   * Create an auto score annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto score annotation\n   */\n  createAutoScoreAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto score annotation\n    var annotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Create an auto comment annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto comment annotation\n   */\n  createAutoCommentAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto comment annotation\n    var annotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the component after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n    }\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  removeAttachment(attachment) {\n    if (this.attachments.indexOf(attachment) != -1) {\n      this.attachments.splice(this.attachments.indexOf(attachment), 1);\n      this.studentDataChanged();\n      // YOU ARE NOW FREEEEEEEEE!\n    }\n  };\n\n  /**\n   * Attach student asset to this Component's attachments\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          var attachment = {\n            studentAssetId: copiedAsset.id,\n            iconURL: copiedAsset.iconURL\n          };\n\n          this.attachments.push(attachment);\n          this.studentDataChanged();\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the number of rows for the textarea\n   */\n  getNumRows() {\n    var numRows = null;\n\n    if (this.componentContent != null) {\n      numRows = this.componentContent.numRows;\n    }\n\n    return numRows;\n  };\n\n  /**\n   * Get the number of columns for the textarea\n   */\n  getNumColumns() {\n    var numColumns = null;\n\n    if (this.componentContent != null) {\n      numColumns = this.componentContent.numColumns;\n    }\n\n    return numColumns;\n  };\n\n  /**\n   * Get the text the student typed\n   */\n  getResponse() {\n    var response = null;\n\n    if (this.studentResponse != null) {\n      response = this.studentResponse;\n    }\n\n    return response;\n  };\n\n  /**\n   * Import work from another component\n   */\n  importWork() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // get the import previous work node id and component id\n      var importPreviousWorkNodeId = componentContent.importPreviousWorkNodeId;\n      var importPreviousWorkComponentId = componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        if (componentContent.importWorkNodeId != null && componentContent.importWorkNodeId != '') {\n          importPreviousWorkNodeId = componentContent.importWorkNodeId;\n        }\n      }\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        if (componentContent.importWorkComponentId != null && componentContent.importWorkComponentId != '') {\n          importPreviousWorkComponentId = componentContent.importWorkComponentId;\n        }\n      }\n\n      if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importPreviousWorkNodeId, importPreviousWorkComponentId);\n\n          if (importWorkComponentState != null) {\n            /*\n             * populate a new component state with the work from the\n             * imported component state\n             */\n            var populatedComponentState = this.ConceptMapService.populateComponentState(importWorkComponentState);\n\n            /*\n             * inject the asset paths so that the node file names change from\n             * 'Sun.png' to '/wise/curriculum/129/assets/Sun.png'\n             */\n            populatedComponentState = this.ProjectService.injectAssetPaths(populatedComponentState);\n\n            // populate the component state into this component\n            this.setStudentWork(populatedComponentState);\n\n            // make the work dirty so that it gets saved\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * A node up button was clicked in the authoring tool so we will move the\n   * node up\n   * @param index the index of the node that we will move\n   */\n  authoringViewNodeUpButtonClicked(index) {\n\n    // check if the node is at the top\n    if (index != 0) {\n      // the node is not at the top so we can move it up\n\n      // get the nodes\n      var nodes = this.authoringComponentContent.nodes;\n\n      if (nodes != null) {\n\n        // get the node at the given index\n        var node = nodes[index];\n\n        // remove the node\n        nodes.splice(index, 1);\n\n        // insert the node back in one index back\n        nodes.splice(index - 1, 0, node);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * A node down button was clicked in the authoring tool so we will move the\n   * node down\n   * @param index the index of the node that we will move\n   */\n  authoringViewNodeDownButtonClicked(index) {\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    // check if the node is at the bottom\n    if (nodes != null && index != nodes.length - 1) {\n      // the node is not at the bottom so we can move it down\n\n      // get the node at the given index\n      var node = nodes[index];\n\n      // remove the node\n      nodes.splice(index, 1);\n\n      // insert the node back in one index ahead\n      nodes.splice(index + 1, 0, node);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * A node delete button was clicked in the authoring tool so we will remove\n   * the node\n   * @param index the index of the node that we will delete\n   */\n  authoringViewNodeDeleteButtonClicked(index) {\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    if (nodes != null) {\n\n      // get the node\n      var node = nodes[index];\n\n      if (node != null) {\n\n        // get the file name and label\n        var nodeFileName = node.fileName;\n        var nodeLabel = node.label;\n\n        // confirm with the author that they really want to delete the node\n        var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisNode', { nodeFileName: nodeFileName, nodeLabel: nodeLabel}));\n\n        if (answer) {\n          /*\n           * the author is sure they want to delete the node so we\n           * will remove it from the array\n           */\n          nodes.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link up button was clicked in the authoring tool so we will move the\n   * link up\n   * @param index the index of the link\n   */\n  authoringViewLinkUpButtonClicked(index) {\n\n    // check if the link is at the top\n    if (index != 0) {\n\n      // get the links\n      var links = this.authoringComponentContent.links;\n\n      if (links != null) {\n\n        // get a link\n        var link = links[index];\n\n        if (link != null) {\n\n          // remove the link\n          links.splice(index, 1);\n\n          // add the link back in one index back\n          links.splice(index - 1, 0, link);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link down button was clicked in the authoring tool so we will move the\n   * link down\n   * @param index the index of the link\n   */\n  authoringViewLinkDownButtonClicked(index) {\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    // check if the link is at the bottom\n    if (links != null && index != links.length - 1) {\n      // the node is not at the bottom so we can move it down\n\n      if (links != null) {\n\n        // get the link\n        var link = links[index];\n\n        if (link != null) {\n\n          // remove the link\n          links.splice(index, 1);\n\n          // add the link back in one index ahead\n          links.splice(index + 1, 0, link);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * A link delete button was clicked in the authoring tool so we remove the\n   * link\n   * @param index the index of the link\n   */\n  authoringViewLinkDeleteButtonClicked(index) {\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    if (links != null) {\n\n      // get a link\n      var link = links[index];\n\n      if (link != null) {\n\n        // get the link label\n        var linkLabel = link.label;\n\n        // confirm with the author that they really want to delete the link\n        var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisLink', { linkLabel: linkLabel}));\n\n        if (answer) {\n          /*\n           * the author is sure they want to delete the link so we\n           * will remove it from the array\n           */\n          links.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a node in the authoring tool\n   */\n  authoringViewAddNode() {\n\n    // get a new node id\n    var id = this.authoringGetNewConceptMapNodeId();\n\n    // create the new node\n    var newNode = {};\n    newNode.id = id;\n    newNode.label = '';\n    newNode.fileName = '';\n    newNode.width = 100;\n    newNode.height = 100;\n\n    // get the nodes\n    var nodes = this.authoringComponentContent.nodes;\n\n    // add the new node\n    nodes.push(newNode);\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get the concept map node with the given id\n   * @param nodeId the concept map node id\n   * @return the concept map node with the given node id\n   */\n  authoringViewGetNodeById(nodeId) {\n\n    if (nodeId != null &&\n      this.authoringComponentContent != null &&\n      this.authoringComponentContent.nodes != null) {\n\n      // loop through all the concept map nodes\n      for (var n = 0; n < this.authoringComponentContent.nodes.length; n++) {\n        var node = this.authoringComponentContent.nodes[n];\n\n        if (node != null) {\n          if (nodeId === node.id) {\n            // we have found the concept map node that we want\n            return node;\n          }\n        }\n      }\n    }\n\n    return null;\n  }\n\n  /**\n   * Add a link in the authoring tool\n   */\n  authoringViewAddLink() {\n\n    // get a new link id\n    var id = this.authoringGetNewConceptMapLinkId();\n\n    // create a new link\n    var newLink = {};\n    newLink.id = id;\n    newLink.label = '';\n    newLink.color = '';\n\n    // get the links\n    var links = this.authoringComponentContent.links;\n\n    // add the new link\n    links.push(newLink);\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get a new ConceptMapNode id that isn't being used\n   * @returns a new ConceptMapNode id e.g. 'node3'\n   */\n  authoringGetNewConceptMapNodeId() {\n\n    var nextAvailableNodeIdNumber = 1;\n\n    // array to remember the numbers that have been used in node ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.authoringComponentContent.nodes.length; x++) {\n      var node = this.authoringComponentContent.nodes[x];\n\n      if (node != null) {\n\n        // get the node id\n        var nodeId = node.id;\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('node', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableNodeIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'node' + nextAvailableNodeIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Get a new ConceptMapLink id that isn't being used\n   * @returns a new ConceptMapLink id e.g. 'link3'\n   */\n  authoringGetNewConceptMapLinkId() {\n\n    var nextAvailableLinkIdNumber = 1;\n\n    // array to remember the numbers that have been used in link ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.authoringComponentContent.links.length; x++) {\n      var link = this.authoringComponentContent.links[x];\n\n      if (link != null) {\n\n        // get the node id\n        var nodeId = link.id;\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('link', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableLinkIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'link' + nextAvailableLinkIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * A \"with link\" checkbox was checked\n   * @param ruleIndex the index of the rule\n   */\n  authoringRuleLinkCheckboxClicked(ruleIndex) {\n\n    // get the rule that was checked\n    var rule = this.authoringComponentContent.rules[ruleIndex];\n\n    if (rule != null) {\n      if (rule.type == 'node') {\n        /*\n         * the rule has been set to 'node' instead of 'link' so we\n         * will remove the link label and other node label\n         */\n\n        delete rule.linkLabel;\n        delete rule.otherNodeLabel;\n      }\n    }\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a new rule\n   */\n  authoringAddRule() {\n\n    // create the new rule\n    var newRule = {};\n    newRule.name = '';\n    newRule.type = 'node';\n    newRule.categories = [];\n    newRule.nodeLabel = '';\n    newRule.comparison = 'exactly';\n    newRule.number = 1;\n    newRule.not = false;\n\n    // add the rule to the array of rules\n    this.authoringComponentContent.rules.push(newRule);\n\n    var showSubmitButton = false;\n\n    if (this.authoringComponentContent.rules.length > 0) {\n      // there are scoring rules so we will show the submit button\n      showSubmitButton = true;\n    }\n\n    // set the value of the showSubmitButton field\n    this.setShowSubmitButtonValue(showSubmitButton);\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a rule up\n   * @param index the index of the rule\n   */\n  authoringViewRuleUpButtonClicked(index) {\n\n    // check if the rule is at the top\n    if (index != 0) {\n      // the rule is not at the top so we can move it up\n\n      // get the rules\n      var rules = this.authoringComponentContent.rules;\n\n      if (rules != null) {\n\n        // get the rule at the given index\n        var rule = rules[index];\n\n        // remove the rule\n        rules.splice(index, 1);\n\n        // insert the rule back in one index back\n        rules.splice(index - 1, 0, rule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a rule down\n   * @param index the index of the rule\n   */\n  authoringViewRuleDownButtonClicked(index) {\n\n    // get the rules\n    var rules = this.authoringComponentContent.rules;\n\n    // check if the rule is at the bottom\n    if (rules != null && index != rules.length - 1) {\n      // the rule is not at the bottom so we can move it down\n\n      // get the rule at the given index\n      var rule = rules[index];\n\n      // remove the rule\n      rules.splice(index, 1);\n\n      // insert the rule back in one index ahead\n      rules.splice(index + 1, 0, rule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /*\n   * Delete a rule\n   * @param index the index of the rule to delete\n   */\n  authoringViewRuleDeleteButtonClicked(index) {\n\n    // get the rule\n    var rule = this.authoringComponentContent.rules[index];\n\n    if (rule != null) {\n\n      // get the rule name\n      var ruleName = rule.name;\n\n      // confirm with the author that they really want to delete the rule\n      var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteThisRule', { ruleName: ruleName }));\n\n      if (answer) {\n        // remove the rule at the given index\n        this.authoringComponentContent.rules.splice(index, 1);\n\n        // perform updating and saving\n        this.authoringViewComponentChanged();\n      }\n    }\n\n    var showSubmitButton = false;\n\n    if (this.authoringComponentContent.rules.length > 0) {\n      // there are scoring rules so we will show the submit button\n      showSubmitButton = true;\n    }\n\n    // set the value of the showSubmitButton field\n    this.setShowSubmitButtonValue(showSubmitButton);\n  }\n\n  /**\n   * Add a category to a rule\n   * @param rule the rule\n   */\n  authoringViewAddCategoryClicked(rule) {\n\n    if (rule != null) {\n      // add an empty category name\n      rule.categories.push('');\n    }\n\n    // perform updating and saving\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a category from a rule\n   * @param rule delete a category from this rule\n   * @param index the index of the category\n   */\n  authoringViewDeleteCategoryClicked(rule, index) {\n\n    if (rule != null) {\n\n      // get the rule name\n      var ruleName = rule.name;\n\n      // get the category name\n      var categoryName = rule.categories[index];\n\n      // confirm with the author that they really want to delete the category from the rule\n      var answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteTheCategory' , { ruleName: ruleName, categoryName: categoryName }));\n\n      if (answer) {\n        // remove the category at the index\n        rule.categories.splice(index, 1);\n\n        // perform updating and saving\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Get all the step node ids in the project\n   * @returns all the step node ids\n   */\n  getStepNodeIds() {\n    var stepNodeIds = this.ProjectService.getNodeIds();\n\n    return stepNodeIds;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Set the message next to the save button\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setSaveMessage(message, time) {\n    this.saveMessage.text = message;\n    this.saveMessage.time = time;\n  };\n\n  /**\n   * Check if CRater is enabled for this component\n   * @returns whether CRater is enabled for this component\n   */\n  isCRaterEnabled() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterEnabled(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on save\n   * @returns whether CRater is set to score on save\n   */\n  isCRaterScoreOnSave() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSave(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on submit\n   * @returns whether CRater is set to score on submit\n   */\n  isCRaterScoreOnSubmit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSubmit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on change\n   * @returns whether CRater is set to score on change\n   */\n  isCRaterScoreOnChange() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnChange(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score when the student exits the step\n   * @returns whether CRater is set to score when the student exits the step\n   */\n  isCRaterScoreOnExit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnExit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    exitListener = this.$scope.$on('exit', angular.bind(this, function(event, args) {\n\n    }));\n  };\n\n  /**\n   * A link type was selected in the link type chooser popup\n   * @param linkType the authored link object that was selected\n   */\n  linkTypeSelected(selectedLink) {\n\n    if (this.highlightedElement != null &&\n      this.highlightedElement.constructor.name == 'ConceptMapLink') {\n\n      /*\n       * get the ConceptMapLink object that we are setting the link type\n       * for\n       */\n      var link = this.highlightedElement;\n\n      // get the label, color, and original id\n      var label = selectedLink.label;\n      var color = selectedLink.color;\n      var originalId = selectedLink.id;\n\n      // set the label, color, and original id into the link\n      link.setLabel(label);\n      link.setColor(color);\n      link.setOriginalId(originalId);\n    }\n\n    // make the link not highlighted\n    this.clearHighlightedElement();\n\n    // handle the student data changing\n    this.studentDataChanged();\n  }\n\n  /**\n   * Get the links title\n   * @returns the links title\n   */\n  getLinksTitle() {\n    var linksTitle = '';\n\n    if (this.componentContent != null) {\n      linksTitle = this.componentContent.linksTitle;\n    }\n\n    return linksTitle;\n  }\n\n  /**\n   * Show the link type chooser popup\n   */\n  showLinkTypeChooser() {\n\n    // check if we have initialized the popup\n    if (!this.initializedDisplayLinkTypeChooserModalOverlay) {\n      // we have not initialized the popup so we will do so now\n      this.setLinkTypeChooserOverlayStyle();\n      this.initializedDisplayLinkTypeChooserModalOverlay = true;\n    }\n\n    /*\n     * initialize the top left of the link chooser popup to show up on\n     * the top right of the svg element\n     */\n    this.linkTypeChooserStyle['left'] = '600px';\n    this.linkTypeChooserStyle['top'] = '20px';\n\n    this.displayLinkTypeChooser = true;\n  }\n\n  /**\n   * Hide the link type chooser popup\n   */\n  hideLinkTypeChooser() {\n\n    // hide the link type chooser\n    this.displayLinkTypeChooser = false;\n    this.displayLinkTypeChooserModalOverlay = false;\n    this.newlyCreatedLink = null;\n\n    if (!this.$scope.$$phase) {\n      // TODO GK (from HT) this line was causing a lot of js errors ( $digest already in progress ), so I commented it out\n      // and it still seems to work. Do we need this line?\n      // see here: http://stackoverflow.com/questions/12729122/angularjs-prevent-error-digest-already-in-progress-when-calling-scope-apply\n      //this.$scope.$apply();\n    }\n  }\n\n  /**\n   * Setup the svg\n   */\n  setupSVG() {\n    // get the svg element in the svg.js world\n    this.draw = SVG(this.svgId);\n    this.draw.width(this.width);\n    this.draw.height(this.height);\n\n    this.highlightedElement = null;\n    this.activeNode = null;\n    this.activeLink = null;\n    this.drawingLink = false;\n    this.newlyCreatedLink = null;\n\n    // set the mouse down listener\n    this.draw.mousedown((event) => {\n      this.svgMouseDown(event);\n    });\n\n    // set the mouse up listener\n    this.draw.mouseup((event) => {\n      this.svgMouseUp(event);\n    });\n\n    // set the mouse move listener\n    this.draw.mousemove((event) => {\n      this.svgMouseMove(event);\n    });\n\n    // get the svg element in the angular world\n    var svg = angular.element('#' + this.svgId);\n\n    /*\n     * check if we have already added the dragover listener so we don't\n     * add multiple listeners for the same event. adding multiple listeners\n     * to the same event may occur in the authoring tool.\n     */\n    if (!this.addedDragOverListener) {\n      /*\n       * listen for the dragover event which occurs when the user is\n       * dragging a node onto the svg\n       */\n      svg[0].addEventListener('dragover', (event) => {\n        /*\n         * prevent the default because if we don't, the user won't\n         * be able to drop a new node instance onto the svg in the\n         * authoring mode\n         */\n        event.preventDefault();\n      });\n\n      this.addedDragOverListener = true;\n    }\n\n    /*\n     * check if we have already added the drop listener so we don't\n     * add multiple listeners for the same event. adding multiple listeners\n     * to the same event may occur in the authoring tool.\n     */\n    if (!this.addedDropListener) {\n      /*\n       * listen for the drop event which occurs when the student drops\n       * a new node onto the svg\n       */\n      svg[0].addEventListener('drop', (event) => {\n\n        /*\n         * the user has dropped a new node onto the svg to create a\n         * new instance of a node\n         */\n        this.newNodeDropped(event);\n      });\n\n      this.addedDropListener = true;\n    }\n\n    // set the link type chooser style\n    this.setLinkTypeChooserStyle();\n  }\n\n  /**\n   * Set the link type chooser popup style\n   */\n  setLinkTypeChooserStyle() {\n\n    /*\n     * set the link type chooser popup to show up in the upper right of\n     * the svg element\n     */\n    this.linkTypeChooserStyle = {\n      'width': '300px',\n      'position': 'absolute',\n      'left': '600px',\n      'top': '20px',\n      'border': '1px solid black',\n      'backgroundColor': 'white',\n      'cursor': 'pointer',\n      'z-index': 10000,\n      'padding': '16px'\n    }\n  }\n\n  /**\n   * Set the link type chooser popup overlay style\n   */\n  setLinkTypeChooserOverlayStyle() {\n\n    // calculate the modal overlay width and height\n    this.modalWidth = this.getModalWidth();\n    this.modalHeight = this.getModalHeight();\n\n    //var overlayWidth = this.modalWidth + 'px';\n    var overlayWidth = this.modalWidth;\n\n    var conceptMapContainer = angular.element('#' + this.conceptMapContainerId);\n    var width = conceptMapContainer.width();\n    var height = conceptMapContainer.height();\n    var offset = conceptMapContainer.offset();\n\n    var offsetLeft = offset.left;\n    var offsetTop = offset.top;\n    offsetLeft = 0;\n    offsetTop = 0;\n\n    this.linkTypeChooserModalOverlayStyle = {\n      'position': 'absolute',\n      'z-index': 9999,\n      'width': overlayWidth,\n      'height': height,\n      'background-color': '#000000',\n      'opacity': 0.4\n    }\n  }\n\n  /**\n   * Get the width that the modal overlay should be\n   * @returns the width that the modal overlay should be\n   */\n  getModalWidth() {\n\n    var selectNodeBarWidth = null;\n    var svgWidth = null;\n\n    // get the width of the left select node bar\n    var selectNodeBarWidthString = angular.element(document.getElementById('#' + this.selectNodeBarId)).css('width');\n\n    // get the width of the svg element\n    var svgWidthString = angular.element(document.getElementById(this.svgId)).css('width');\n\n    if (selectNodeBarWidthString != null && svgWidthString != null) {\n      // get the integer values\n      selectNodeBarWidth = parseInt(selectNodeBarWidthString.replace('px', ''));\n      svgWidth = parseInt(svgWidthString.replace('px', ''));\n    }\n\n    var overlayWidth = null;\n\n    if (selectNodeBarWidth != null && svgWidth != null) {\n      // calculate the sum of the widths\n      overlayWidth = selectNodeBarWidth + svgWidth;\n    }\n\n    return overlayWidth;\n  }\n\n  /**\n   * Get the height that the modal overlay should be\n   * @returns the height that the modal overlay should be\n   */\n  getModalHeight() {\n\n    var selectNodeBarHeight = null;\n    var svgHeight = null;\n\n    // get the height of the left select node bar\n    var selectNodeBarHeightString = angular.element(document.getElementById('#' + this.selectNodeBarId)).css('height');\n\n    // get the height of the svg element\n    var svgHeightString = angular.element(document.getElementById(this.svgId)).css('height');\n\n    if (selectNodeBarHeightString != null && svgHeightString != null) {\n      // get the integer values\n      selectNodeBarHeight = parseInt(selectNodeBarHeightString.replace('px', ''));\n      svgHeight = parseInt(svgHeightString.replace('px', ''));\n    }\n\n    var overlayHeight = null;\n\n    if (selectNodeBarHeight != null && svgHeight != null) {\n      // get the larger of the two heights\n      overlayHeight = Math.max(selectNodeBarHeight, svgHeight);\n    }\n\n    return overlayHeight;\n  }\n\n  /**\n   * The cancel button on the link type chooser was clicked\n   */\n  cancelLinkTypeChooser() {\n\n    if (this.newlyCreatedLink != null) {\n      /*\n       * the student has just created this link and has not yet chosen\n       * a link type so we will remove the link\n       */\n      this.newlyCreatedLink.remove();\n      this.newlyCreatedLink = null;\n    }\n\n    // hide the link chooser\n    this.hideLinkTypeChooser();\n\n    // make the link not highlighted\n    this.clearHighlightedElement();\n  }\n\n  /**\n   * Called when the mouse iss clicked down on a blank spot in the svg element\n   * @param event the mouse down event\n   */\n  svgMouseDown(event) {\n    if (event.target.tagName == 'svg') {\n      // remove highlighting from any item that was previously highlighted\n      this.clearHighlightedElement();\n    }\n  }\n\n  /**\n   * Called when the mouse is released\n   * @param event the mouse up event\n   */\n  svgMouseUp(event) {\n\n    if (this.activeLink != null && this.activeNode == null) {\n      /*\n       * the student was creating a link but did not connect the link\n       * to a destination node so we will just remove the link\n       */\n      this.activeLink.remove();\n    }\n\n    // we are no longer drawing a link\n    this.drawingLink = false;\n\n    // there is no longer an active link\n    this.activeLink = null;\n\n    // enable node draggin\n    this.enableNodeDragging();\n    this.moveLinkTextToFront();\n    // move the nodes to the front so that they are on top of links\n    this.moveNodesToFront();\n  }\n\n  /**\n   * Called when the mouse is moved\n   * @param event the mouse move event\n   */\n  svgMouseMove(event) {\n\n    if (this.activeLink != null) {\n      /*\n       * there is an active link which means the student has created a\n       * new link and is in the process of choosing the link's destination\n       * node\n       */\n\n      // get the coordinates that the link should be updated to\n      var coordinates = this.getRelativeCoordinatesByEvent(event);\n      var x1 = null;\n      var y1 = null;\n      var x2 = coordinates.x;\n      var y2 = coordinates.y;\n\n      /*\n       * get the location of the center of the connector that the link\n       * originated from\n       */\n      var startX = this.activeLinkStartX;\n      var startY = this.activeLinkStartY;\n\n      /*\n       * get the distance from the start to the current position of the\n       * mouse\n       */\n      var distance = this.ConceptMapService.calculateDistance(startX, startY, x2, y2);\n\n      /*\n       * check if we have set the curvature yet and that the mouse\n       * is more than 20 pixels away from the start.\n       *\n       * we will determine the curvature of the link based upon how\n       * the user has dragged the mouse in relation to the center\n       * of the connector. if they start drawing the link horizontally\n       * we will create a straight line with no curvature. if they\n       * start drawing the link by moving the mouse up, we will create\n       * a line that curves up. if they start drawing the link by\n       * moving the mouse down, we will create a line that curves down.\n       */\n      if (!this.linkCurvatureSet && distance > 20) {\n\n        /*\n         * get the slope of the line from the start to the location\n         * of the mouse\n         */\n        var slope = Math.abs(this.ConceptMapService.getSlope(startX, startY, x2, y2));\n\n        if (y2 < startY) {\n          // the user has moved the mouse above the connector\n\n          if (slope == null) {\n            /*\n             * the slope is infinite so we will default the\n             * curvature to 0.5\n             */\n            this.activeLink.curvature = 0.5;\n          } else if (slope < 1.0) {\n            // make the link straight\n            this.activeLink.curvature = 0.0;\n          } else {\n            // make the link curved\n            this.activeLink.curvature = 0.5;\n          }\n\n          // make the link curve up\n          this.activeLink.startCurveUp = true;\n          this.activeLink.endCurveUp = true;\n        } else if (y2 > startY) {\n          // the user has moved the mouse below the connector\n\n          if (slope == null) {\n            /*\n             * the slope is infinite so we will default the\n             * curvature to 0.5\n             */\n            this.activeLink.curvature = 0.5;\n          } else if (slope < 1.0) {\n            // make the link straight\n            this.activeLink.curvature = 0.0;\n          } else {\n            // make the link curved\n            this.activeLink.curvature = 0.5;\n          }\n\n          // make the link curve down\n          this.activeLink.startCurveUp = false;\n          this.activeLink.endCurveUp = false;\n        }\n\n        // remember that we have set the curvature\n        this.linkCurvatureSet = true;\n      }\n\n      var isDragging = true;\n\n      // redraw the link with the new coordinates\n      this.activeLink.updateCoordinates(x1, y1, x2, y2, isDragging);\n    }\n  }\n\n  /**\n   * Set the active node. This is called when the student places the mouse\n   * over a node. When a node becomes active, we show the delete button and\n   * the border.\n   * @param node the node to make active\n   */\n  setActiveNode(node) {\n    if (node != null) {\n      // show the delete button for the node\n      node.showDeleteButton();\n\n      // show the border for the node\n      node.showBorder();\n\n      // remember the active node\n      this.activeNode = node;\n    }\n  }\n\n  /**\n   * Clear the active node\n   */\n  clearActiveNode() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var tempNode = this.nodes[n];\n\n      if (tempNode == this.activeNode && tempNode != this.highlightedElement) {\n        /*\n         * we have found the node and it is not highlighted so we will\n         * hide the delete button and hide the border\n         */\n        tempNode.hideDeleteButton();\n        tempNode.hideBorder();\n      }\n    }\n\n    this.activeNode = null;\n  }\n\n  /**\n   * Get the coordinates of the mouse relative to the svg element\n   * @param event a mouse event\n   * @returns an object containing x and y values\n   */\n  getRelativeCoordinatesByEvent(event) {\n\n    // get the offset of the mouse from its parent\n    var offsetX = event.offsetX;\n    var offsetY = event.offsetY;\n\n    var parentOffsetX = 0;\n    var parentOffsetY = 0;\n\n    // get the user agent so we can determine which browser the user is using\n    var userAgent = navigator.userAgent;\n\n    if (event.target.tagName == 'svg') {\n      // the target is the svg element\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n        var matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n        matrix = event.target.createSVGMatrix();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      } else {\n        // the user is using some other browser\n        matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    } else if (event.target.tagName == 'circle') {\n      // the target is a node connector circle or delete circle\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the matrix of the group\n        var matrix = event.target.getCTM();\n\n        // get the bounding box of the circle\n        var bbox = event.target.getBBox();\n\n        /*\n         * get the bounding box of the circle so we can get the\n         * coordinates of the circle within the group\n         */\n        var x = bbox.x;\n        var y = bbox.y;\n\n        // get the absolute coordinates of the circle\n        parentOffsetX = matrix.e + bbox.x;\n        parentOffsetY = matrix.f + bbox.y;\n      }\n    } else if (event.target.tagName == 'rect') {\n      // the target is the rectangle that outlines the image\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the matrix of the group\n        var matrix = event.target.getCTM();\n\n        // get the bounding box of the rect\n        var bbox = event.target.getBBox();\n\n        /*\n         * get the bounding box of the rect so we can get the\n         * coordinates of the rect within the group\n         */\n        var x = bbox.x;\n        var y = bbox.y;\n\n        // get the absolute coordinates of the rect\n        parentOffsetX = matrix.e + x;\n        parentOffsetY = matrix.f + y;\n      }\n    } else if (event.target.tagName == 'image') {\n      // the target is an image\n\n      if (userAgent.indexOf('Chrome') != -1) {\n\n      } else if (userAgent.indexOf('Firefox') != -1) {\n\n        // get the matrix of the group\n        var matrix = event.target.parentElement.getCTM();\n\n        // get the coordinates of the upper left corner of the group\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    } else if (event.target.tagName == 'path') {\n      /*\n       * the target is the link line. sometimes the mouse can be over the\n       * link if the student is moving the mouse around quickly.\n       */\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        // get the coordinates of the head of the link\n        var x2 = event.target.attributes['x2'];\n        var y2 = event.target.attributes['y2'];\n\n        if (x2 != null && y2 != null) {\n          parentOffsetX = parseInt(x2.value);\n          parentOffsetY = parseInt(y2.value);\n        }\n      }\n    } else {\n      // the target is something else\n\n      if (userAgent != null && userAgent.indexOf('Chrome') != -1) {\n        // the user is using Chrome\n\n      } else if (userAgent != null && userAgent.indexOf('Firefox') != -1) {\n        // the user is using Firefox\n\n        var matrix = event.target.getCTM();\n        parentOffsetX = matrix.e;\n        parentOffsetY = matrix.f;\n      }\n    }\n\n    /*\n     * add the parent offset values to the relative offset values to obtain\n     * the x and y values relative to the upper left corner of the svg\n     */\n    var x = parentOffsetX + offsetX;\n    var y = parentOffsetY + offsetY;\n\n    var returnObject = {}\n    returnObject.x = x;\n    returnObject.y = y;\n\n    return returnObject;\n  }\n\n  /**\n   * Called when the student clicks down on a node in the left node bar\n   * @param $event the mouse down event\n   * @param node the node the student clicked down on\n   */\n  selectNode($event, node) {\n\n    // remember the selected node\n    this.selectedNode = node;\n\n    /*\n     * remember the offset of the mouse relative to the upper left of the\n     * node's image so that we properly calculate the node position when\n     * the student releases the mouse to put the node in the svg\n     */\n    this.tempOffsetX = $event.offsetX;\n    this.tempOffsetY = $event.offsetY;\n  }\n\n  /**\n   * The student has dropped a new node on the svg\n   * @param event the drop event\n   */\n  newNodeDropped(event) {\n\n    // get the selected node\n    var selectedNode = this.selectedNode;\n\n    if (selectedNode != null) {\n      // get the file name\n      var filePath = selectedNode.fileName;\n\n      // get the node name\n      var label = selectedNode.label;\n\n      // get the width and height of the node\n      var width = selectedNode.width;\n      var height = selectedNode.height;\n\n      // get the original authored id\n      var originalId = selectedNode.id;\n\n      // get the coordinates relative to the svg element\n      var coordinates = this.getRelativeCoordinatesByEvent(event);\n\n      // get the position we should drop the node at\n      var x = coordinates.x - this.tempOffsetX;\n      var y = coordinates.y - this.tempOffsetY;\n\n      // get a new ConceptMapNodeId e.g. 'studentNode3'\n      var newConceptMapNodeId = this.getNewConceptMapNodeId();\n\n      // create a ConceptMapNode\n      var conceptMapNode = this.ConceptMapService.newConceptMapNode(this.draw, newConceptMapNodeId, originalId, filePath, label, x, y, width, height);\n\n      // add the node to our array of nodes\n      this.addNode(conceptMapNode);\n\n      // set the mouse events on the node\n      this.setNodeMouseEvents(conceptMapNode);\n\n      // make the node highlighted\n      this.setHighlightedElement(conceptMapNode);\n\n      // handle the student data changing\n      this.studentDataChanged();\n    }\n\n    // enable node dragging\n    this.enableNodeDragging();\n  }\n\n  /**\n   * Get a new ConceptMapNode id that isn't being used\n   * @returns a new ConceptMapNode id e.g. 'studentNode3'\n   */\n  getNewConceptMapNodeId() {\n\n    var nextAvailableNodeIdNumber = 1;\n\n    // array to remember the numbers that have been used in node ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.nodes.length; x++) {\n      var node = this.nodes[x];\n\n      if (node != null) {\n\n        // get the node id\n        var nodeId = node.getId();\n\n        if (nodeId != null) {\n\n          // get the number from the node id\n          var nodeIdNumber = parseInt(nodeId.replace('studentNode', ''));\n\n          if (nodeIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(nodeIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableNodeIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'studentNode' + nextAvailableNodeIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Get a new ConceptMapLink id that isn't being used\n   * @returns a new ConceptMapLink id e.g. 'studentLink3'\n   */\n  getNewConceptMapLinkId() {\n\n    var nextAvailableLinkIdNumber = 1;\n\n    // array to remember the numbers that have been used in link ids already\n    var usedNumbers = [];\n\n    // loop through all the nodes\n    for (var x = 0; x < this.links.length; x++) {\n      var link = this.links[x];\n\n      if (link != null) {\n\n        // get the node id\n        var linkId = link.getId();\n\n        if (linkId != null) {\n\n          // get the number from the link id\n          var linkIdNumber = parseInt(linkId.replace('studentLink', ''));\n\n          if (linkIdNumber != null) {\n            // add the number to the array of used numbers\n            usedNumbers.push(linkIdNumber);\n          }\n        }\n      }\n    }\n\n    if (usedNumbers.length > 0) {\n      // get the max number used\n      var maxNumberUsed = Math.max.apply(Math, usedNumbers);\n\n      if (!isNaN(maxNumberUsed)) {\n        // increment the number by 1 to get the next available number\n        nextAvailableLinkIdNumber = maxNumberUsed + 1;\n      }\n    }\n\n    var newId = 'studentLink' + nextAvailableLinkIdNumber;\n\n    return newId;\n  }\n\n  /**\n   * Set the mouse events on a newly created node\n   * @param conceptMapNode the node\n   */\n  setNodeMouseEvents(conceptMapNode) {\n\n    // set the node mouse over event\n    conceptMapNode.setNodeMouseOver((event) => {\n      this.nodeMouseOver(event);\n    });\n\n    // set the node mouse out event\n    conceptMapNode.setNodeMouseOut((event) => {\n      this.nodeMouseOut(event);\n    });\n\n    // set the connector mouse down event\n    conceptMapNode.setConnectorMouseDown((event) => {\n      this.disableNodeDragging();\n      this.connectorMouseDown(event);\n    });\n\n    // set the node mouse down event\n    conceptMapNode.setNodeMouseDown((event) => {\n      this.nodeMouseDown(event);\n    });\n\n    // set the node mouse up event\n    conceptMapNode.setNodeMouseUp((event) => {\n      this.nodeMouseUp(event);\n    });\n\n    // set the delete button mouse down event\n    conceptMapNode.setDeleteButtonMouseDown((event) => {\n      this.nodeDeleteButtonMouseDown(event);\n    });\n\n    // set the delete button mouse over event\n    conceptMapNode.setDeleteButtonMouseOver((event) => {\n      this.nodeDeleteButtonMouseOver(event);\n    });\n\n    // set the delete button mouse out event\n    conceptMapNode.setDeleteButtonMouseOut((event) => {\n      this.nodeDeleteButtonMouseOut(event);\n    });\n\n    // set node drag move event\n    conceptMapNode.setDragMove((event) => {\n      this.nodeDragMove(event);\n    });\n  }\n\n  /**\n   * Set an element to be highlighted. The element can be a node or a link.\n   * @param element a node or link\n   */\n  setHighlightedElement(element) {\n\n    // remove highlighting from any existing element\n    this.clearHighlightedElement();\n\n    // hide the link type chooser\n    this.hideLinkTypeChooser();\n\n    if (element != null) {\n\n      // remember the highlighted element\n      this.highlightedElement = element;\n\n      // set the higlighted value to true for the element\n      element.isHighlighted(true);\n\n      // show the delete button for the element\n      element.showDeleteButton();\n\n      if(element.constructor.name == 'ConceptMapNode') {\n        // the element is a node\n\n        // show the border\n        element.showBorder();\n      } else if (element.constructor.name == 'ConceptMapLink') {\n        // the element is a link\n\n        // show the link type chooser\n        this.showLinkTypeChooser();\n\n        // select the link type that was previously chosen for the link\n        this.selectedLinkType = element.getOriginalId();\n      }\n    }\n  }\n\n  /**\n   * If an element is highlighted, make it no longer highlighted.\n   */\n  clearHighlightedElement() {\n\n    if (this.highlightedElement != null) {\n\n      if(this.highlightedElement.constructor.name == 'ConceptMapNode') {\n        // the highlighted element is a node\n\n        // hide the border\n        this.highlightedElement.hideBorder();\n      } else if (this.highlightedElement.constructor.name == 'ConceptMapLink') {\n        // the element is a link\n\n        // hide the link type chooser\n        this.hideLinkTypeChooser();\n      }\n\n      // set the higlighted value to false for the element\n      this.highlightedElement.isHighlighted(false);\n\n      // hide the delete button\n      this.highlightedElement.hideDeleteButton();\n\n      // clear the highlighted element reference\n      this.highlightedElement = null;\n    }\n  }\n\n  /**\n   * Enable node dragging\n   */\n  enableNodeDragging() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get the node group\n        var group = node.getGroup();\n\n        if (group != null) {\n\n          /*\n           * get the bounds that we will allow the node group to\n           * dragged in\n           */\n          var options = {\n            minX: 0,\n            minY: 0,\n            maxX: this.width,\n            maxY: this.height\n          };\n\n          // make the node group draggable\n          group.draggable(options);\n        }\n      }\n    }\n  }\n\n  /**\n   * Disable node dragging. This will be called when the student creates a\n   * link so that they aren't dragging nodes around at the same time as\n   * creating a link.\n   */\n  disableNodeDragging() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get a node group\n        var group = node.getGroup();\n\n        if (group != null) {\n          // make the group not draggable\n          group.draggable(false);\n        }\n      }\n    }\n  }\n\n  /**\n   * Move the link text group to the front\n   */\n  moveLinkTextToFront() {\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var link = this.links[l];\n\n      if (link != null) {\n        // move the link text group to the front\n        link.moveTextGroupToFront();\n      }\n    }\n  }\n\n  /**\n   * Move the nodes to the front so that they show up above links\n   */\n  moveNodesToFront() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var node = this.nodes[n];\n\n      if (node != null) {\n\n        // get a node group\n        var group = node.getGroup();\n\n        if (group != null) {\n          // move the node group to the front\n          group.front();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a node to our array of nodes\n   * @param node the node to add\n   */\n  addNode(node) {\n    if (node != null) {\n      this.nodes.push(node);\n    }\n  }\n\n  /**\n   * Remove a node from the svg and our array of nodes\n   * @param node the node to remove\n   */\n  removeNode(node) {\n\n    if (node != null) {\n\n      // get the outgoing links from the node\n      var outgoingLinks = node.getOutgoingLinks();\n\n      if (outgoingLinks != null) {\n\n        // get the number of outgoing links\n        var numOutgoingLinks = outgoingLinks.length;\n\n        // loop until we have removed all the outgoing links\n        while (numOutgoingLinks > 0) {\n          // get an outgoing link\n          var outgoingLink = outgoingLinks[0];\n\n          // remove the link from the svg and from our array of links\n          this.removeLink(outgoingLink);\n\n          // decrement the number of outgoing links counter\n          numOutgoingLinks--;\n        }\n      }\n\n      // get the incoming links to the node\n      var incomingLinks = node.getIncomingLinks();\n\n      if (incomingLinks != null) {\n\n        // get the number of incoming links\n        var numIncomingLinks = incomingLinks.length;\n\n        // loop until we have removed all the incoming links\n        while (numIncomingLinks > 0) {\n          // get an incoming link\n          var incomingLink = incomingLinks[0];\n\n          // remove the link from the svg and from our array of links\n          this.removeLink(incomingLink);\n\n          // decrement the number of incoming links counter\n          numIncomingLinks--;\n        }\n      }\n\n      // remove the node from the svg\n      node.remove();\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n\n        if (tempNode == node) {\n          // we have found the node we want to remove\n          this.nodes.splice(n, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove all nodes from the svg and our array of nodes\n   */\n  removeAllNodes() {\n\n    // loop through all the nodes\n    for (var n = 0; n < this.nodes.length; n++) {\n      var tempNode = this.nodes[n];\n\n      // remove the node from the svg\n      tempNode.remove();\n    }\n\n    // clear the nodes array\n    this.nodes = [];\n  }\n\n  /**\n   * Get a node by id.\n   * @param id the node id\n   * @returns the node with the given id or null\n   */\n  getNodeById(id) {\n    var node = null;\n\n    if (id != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeId = tempNode.getId();\n\n        if (id == tempNodeId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Get a node by id.\n   * @param groupId the svg group id\n   * @returns the node with the given id or null\n   */\n  getNodeByGroupId(groupId) {\n    var node = null;\n\n    if (groupId != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeGroupId = tempNode.getGroupId();\n\n        if (groupId == tempNodeGroupId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Get a link by id.\n   * @param id the link id\n   * @returns the link with the given id or null\n   */\n  getLinkById(id) {\n    var link = null;\n\n    if (id != null) {\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n        var tempLinkId = tempLink.getId();\n\n        if (groupId == tempLinkId) {\n          // we have found the link we want\n          link = tempLink;\n          break;\n        }\n      }\n    }\n\n    return link;\n  }\n\n  /**\n   * Get a link by group id.\n   * @param groupId the svg group id\n   * @returns the link with the given group id or null\n   */\n  getLinkByGroupId(groupId) {\n    var link = null;\n\n    if (groupId != null) {\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n        var tempLinkGroupId = tempLink.getGroupId();\n\n        if (groupId == tempLinkGroupId) {\n          // we have found the link we want\n          link = tempLink;\n          break;\n        }\n      }\n    }\n\n    return link;\n  }\n\n  /**\n   * Get a node by its connector id.\n   * @param connectorId the svg circle id of the connector\n   * @returns the node with the associated connector or null\n   */\n  getNodeByConnectorId(connectorId) {\n    var node = null;\n\n    if (connectorId != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n\n        // get the connector id\n        var tempConnectorId = tempNode.getConnectorId();\n\n        if (connectorId == tempConnectorId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Remove a node by id. The id of a node is the same as its svg group id.\n   * @param groupId\n   */\n  removeNodeById(groupId) {\n    if (groupId != null) {\n\n      // loop through all the nodse\n      for (var n = 0; n < this.nodes.length; n++) {\n        var tempNode = this.nodes[n];\n        var tempNodeId = tempNode.getId();\n\n        if (groupId == tempNodeId) {\n          // we have found the node we want to remove\n          this.nodes.splice(n, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a link to our array of links\n   * @param link the link to add\n   */\n  addLink(link) {\n    if (link != null) {\n      this.links.push(link);\n    }\n  }\n\n  /**\n   * Remove a link from the svg and our array of links\n   * @param link the link to remove\n   */\n  removeLink(link) {\n\n    if (link != null) {\n\n      // remove the link from the svg\n      link.remove();\n\n      // loop through all the links\n      for (var l = 0; l < this.links.length; l++) {\n        var tempLink = this.links[l];\n\n        if (link == tempLink) {\n          // we have found the link we want to remove\n          this.links.splice(l, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove all the links from the svg and from our array of links\n   */\n  removeAllLinks() {\n\n    // loop through all the links\n    for (var l = 0; l < this.links.length; l++) {\n      var tempLink = this.links[l];\n\n      // remove the link from the svg\n      tempLink.remove();\n    }\n\n    // clear the links array\n    this.links = [];\n  }\n\n  /**\n   * Called when the mouse moves over a node\n   * @param event the mouse over event\n   */\n  nodeMouseOver(event) {\n\n    // get the node group id\n    var groupId = event.target.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        /*\n         * make the node active so that the border and delete button\n         * shows\n         */\n        this.setActiveNode(node);\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a node\n   * @param event the mouse out event\n   */\n  nodeMouseOut(event) {\n\n    // get the group id of the node\n    var groupId = event.target.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        // make the node inactive by clearing the active node\n        this.clearActiveNode();\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on a node\n   * @param event the mouse down event\n   */\n  nodeMouseDown(event) {\n\n    if (event.target.parentElement != null) {\n\n      // get the group id of the node\n      var groupId = event.target.parentElement.id;\n\n      if (groupId != null) {\n\n        // get the node\n        var node = this.getNodeByGroupId(groupId);\n\n        if (node != null) {\n          // make the node highlighted\n          this.setHighlightedElement(node);\n        }\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is released on a node\n   * @param event the mouse up event\n   */\n  nodeMouseUp(event) {\n\n    if (this.drawingLink && this.activeLink != null) {\n      /*\n       * the student is creating a link and has just released the mouse\n       * over a node to connect the destination node of the link\n       */\n\n      // get the group id of the node\n      var groupId = event.target.parentElement.id;\n\n      if (groupId != null) {\n\n        // get the node\n        var node = this.getNodeByGroupId(groupId);\n\n        if (node != null) {\n\n          // get the source node of the link\n          var sourceNode = this.activeLink.sourceNode;\n          var sourceNodeGroupId = sourceNode.getGroupId();\n\n          if (sourceNodeGroupId == groupId) {\n            /*\n             * if the source of the link is the same as the\n             * destination node, we will not connect the link\n             */\n            this.activeLink.remove();\n            this.activeLink = null;\n          } else {\n            /*\n             * the source node is different than the destination\n             * node so we will connect the link\n             */\n\n            // set the destination node of the link\n            this.activeLink.setDestination(node);\n\n            // make the link the active link\n            this.addLink(this.activeLink);\n\n            // highlight the link\n            this.setHighlightedElement(this.activeLink);\n\n            /*\n             * set the link as a newly created link so that if the\n             * student clicks the cancel button, we will remove\n             * the link\n             */\n            this.newlyCreatedLink = this.activeLink;\n\n            // display the modal overlay\n            this.displayLinkTypeChooserModalOverlay = true;\n\n            // handle the student data changing\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n\n    // the link has been connected so we are no longer drawing the link\n    this.drawingLink = false;\n  }\n\n  /**\n   * Called when a link delete button is clicked\n   * @param event the mouse click event\n   * @param link the link to delete\n   */\n  linkDeleteButtonClicked(event, link) {\n\n    if (link != null) {\n\n      // remove the link from our array of links\n      this.removeLink(link);\n\n      // handle the student data changing\n      this.studentDataChanged();\n    }\n\n    // hide the link type chooser\n    this.hideLinkTypeChooser();\n  }\n\n  /**\n   * Called when the mouse is clicked down on a connector. This will start\n   * creating a link.\n   * @param event the mouse down event\n   */\n  connectorMouseDown(event) {\n\n    // set the flag that we are drawing a link\n    this.drawingLink = true;\n\n    // get the connector (the svg circle)\n    var connector = event.target;\n\n    /*\n     * disable node dragging so that the node isn't dragged when the\n     * link head is being dragged\n     */\n    this.disableNodeDragging();\n\n    // get the node\n    var node = this.getNodeByConnectorId(connector.id);\n\n    // get the center of the image\n    var x = node.cx();\n    var y = node.cy();\n\n    // get a new ConceptMapLinkId e.g. 'studentLink3'\n    var newConceptMapLinkId = this.getNewConceptMapLinkId();\n\n    /*\n     * we will not know what the original id is until the student has\n     * selected a link type\n     */\n    var originalId = null;\n\n    // create a link that comes out of the node\n    var link = this.ConceptMapService.newConceptMapLink(this.draw, newConceptMapLinkId, originalId, node);\n\n    // set the link mouse events\n    this.setLinkMouseEvents(link);\n\n    // remember the active link\n    this.activeLink = link;\n\n    // flag for determining if we have set the link curvature\n    this.linkCurvatureSet = false;\n\n    // remember the location of the center of the connector\n    this.activeLinkStartX = node.connectorCX();\n    this.activeLinkStartY = node.connectorCY();\n\n    // highlight the link\n    this.setHighlightedElement(link);\n\n    // clear the active node\n    this.clearActiveNode();\n\n    // make the source node the active node\n    this.setActiveNode(node);\n  }\n\n  /**\n   * Set the link mouse events for a link\n   * @param link the ConceptMapLink\n   */\n  setLinkMouseEvents(link) {\n\n    // set the link mouse down listener\n    link.setLinkMouseDown((event) => {\n      this.linkMouseDown(event);\n    });\n\n    // set the link text mouse down listener\n    link.setLinkTextMouseDown((event) => {\n      this.linkTextMouseDown(event);\n    });\n\n    // set the link mouse over listener\n    link.setLinkMouseOver((event) => {\n      this.linkMouseOver(event);\n    });\n\n    // set the link mouse out listener\n    link.setLinkMouseOut((event) => {\n      this.linkMouseOut(event);\n    });\n\n    // set the delete button clicked event for the link\n    link.setDeleteButtonClicked((event) => {\n      this.linkDeleteButtonClicked(event, link);\n    });\n  }\n\n  /**\n   * Called when the mouse is clicked down on a link\n   * @param event the mouse down event\n   */\n  linkMouseDown(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    if (link != null) {\n      // make the link highlighted\n      this.setHighlightedElement(link);\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on a link text\n   * @param event the mouse down event\n   */\n  linkTextMouseDown(event) {\n\n    var linkGroupId = null;\n\n    /*\n     * the link group id is set into the text group in the linkGroupId\n     * variable. the text group hierarchy looks like this\n     * text group > text > tspan\n     * text group > rect\n     */\n    if (event.target.nodeName == 'tspan') {\n      linkGroupId = event.target.parentElement.parentElement.linkGroupId;\n    } else if (event.target.nodeName == 'text') {\n      linkGroupId = event.target.parentElement.linkGroupId;\n    } else if (event.target.nodeName == 'rect') {\n      linkGroupId = event.target.parentElement.linkGroupId;\n    }\n\n    if (linkGroupId != null) {\n\n      // get the link\n      var link = this.getLinkByGroupId(linkGroupId);\n\n      if (link != null) {\n        // make the link highlighted\n        this.setHighlightedElement(link);\n      }\n    }\n\n  }\n\n  /**\n   * Called when the mouse is over a link\n   * @param event the mouse over event\n   */\n  linkMouseOver(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    if (link != null) {\n      // show the delete button for the link\n      link.showDeleteButton();\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a link\n   * @param event the mouse out event\n   */\n  linkMouseOut(event) {\n\n    // get the group id\n    var groupId = this.getGroupId(event.target);\n\n    // get the link\n    var link = this.getLinkByGroupId(groupId);\n\n    // hide the delete button if the link is not the highlighted link\n    if (link != null && link != this.highlightedElement) {\n      link.hideDeleteButton();\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on the delete button of a node\n   * @param event the mouse down event\n   */\n  nodeDeleteButtonMouseDown(event) {\n\n    if (event.target.parentElement != null) {\n\n      // get the group id\n      var groupId = event.target.parentElement.parentElement.id;\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n\n        // remove the node from our array of nodes\n        this.removeNode(node);\n\n        // handle the student data changing\n        this.studentDataChanged();\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse is over a node delete button\n   * @param event the mouse over event\n   */\n  nodeDeleteButtonMouseOver(event) {\n\n    // get the node group id\n    var groupId = event.target.parentElement.parentElement.id;\n\n    if (groupId != null) {\n\n      // get the node\n      var node = this.getNodeByGroupId(groupId);\n\n      if (node != null) {\n        /*\n         * make the node active so that the border and delete button\n         * shows\n         */\n        this.setActiveNode(node);\n      }\n    }\n  }\n\n  /**\n   * Called when the mouse moves out of a node delete button\n   * @param event the mouse over event\n   */\n  nodeDeleteButtonMouseOut(event) {\n\n    // get the group id\n    var groupId = event.target.parentElement.parentElement.id;\n\n    // get the node\n    var node = this.getNodeByGroupId(groupId);\n\n    if (node != null) {\n      // make the node inactive by clearing the active node\n      this.clearActiveNode(node);\n    }\n  }\n\n  /**\n   * Called when the node is dragged\n   * @param event the drag event\n   */\n  nodeDragMove(event) {\n\n    // get the group id\n    var groupId = event.target.id;\n\n    // get the node\n    var node = this.getNodeByGroupId(groupId);\n\n    if (node != null) {\n      // handle the node being dragged\n      node.dragMove(event);\n    }\n\n    // handle the student data changing\n    this.studentDataChanged();\n  }\n\n  /**\n   * Get the group id of an element. All elements of a node or link are\n   * contained in a group. These groups are the children of the main svg\n   * element.\n   * for example a node's image element will be located here\n   * svg > group > image\n   * for example a link's path element will be located here\n   * svg > group > path\n   *\n   * @param element get the group id of this element\n   * @returns the group id\n   */\n  getGroupId(element) {\n\n    var groupId = null;\n    var currentElement = element;\n    var previousId = null;\n\n    // loop until we have reached the svg element\n    while (currentElement != null) {\n\n      if (currentElement.tagName == 'svg') {\n        // base case. we have found the svg element.\n\n        // the group id will be the previous id we saw\n        groupId = previousId;\n\n        // set the current element to null so that the while loop ends\n        currentElement = null;\n      } else {\n        // remember the element id\n        previousId = currentElement.id;\n\n        /*\n         * set the current element to the parent to continue searching\n         * up the hierarchy\n         */\n        currentElement = currentElement.parentElement;\n      }\n    }\n\n    return groupId;\n  }\n\n  /**\n   * Save the starter concept map\n   */\n  saveStarterConceptMap() {\n\n    let answer = confirm(this.$translate('conceptMap.areYouSureYouWantToSaveTheStarterConceptMap'));\n\n    if (answer) {\n      // get the concept map data\n      var conceptMapData = this.getConceptMapData();\n\n      // set the starter concept map data\n      this.authoringComponentContent.starterConceptMap = conceptMapData;\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Delete the starter concept map\n   */\n  deleteStarterConceptMap() {\n\n    let answer = confirm(this.$translate('conceptMap.areYouSureYouWantToDeleteTheStarterConceptMap'));\n\n    if (answer) {\n      // set the starter concept map data\n      this.authoringComponentContent.starterConceptMap = null;\n\n      // clear the concept map\n      this.clearConceptMap();\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  populateStarterConceptMap() {\n    if (this.componentContent.starterConceptMap != null) {\n      this.populateConceptMapData(this.componentContent.starterConceptMap);\n    }\n  }\n\n  /**\n   * Remove all the links and nodes\n   */\n  clearConceptMap() {\n\n    // remove all the links from the svg and the array of links\n    this.removeAllLinks();\n\n    // remove all the nodes from the svg and the array of nodes\n    this.removeAllNodes();\n  }\n\n  /**\n   * Reset the concept map data. We will clear the concept map data and\n   * if there is starter concept map data we will set it into the concept map.\n   */\n  resetConceptMap() {\n\n    // ask the student if they are sure they want to reset their work\n    var message = this.$translate('conceptMap.areYouSureYouWantToResetYourWork');\n    var answer = confirm(message);\n\n    if (answer) {\n      // the student answered yes to reset their work\n\n      // clear the concept map\n      this.clearConceptMap();\n\n      if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (this.componentContent.starterConceptMap != null) {\n\n        // get the starter concept map\n        var conceptMapData = this.componentContent.starterConceptMap;\n\n        // populate the starter concept map data into the component\n        this.populateConceptMapData(conceptMapData);\n      }\n    }\n  }\n\n  /**\n   * Show the auto feedback that was generated when the student previously\n   * clicked \"Check Answer\".\n   */\n  showAutoFeedback() {\n\n    // show the auto feedback in a modal dialog\n    this.$mdDialog.show(\n      this.$mdDialog.alert()\n      .parent(angular.element(document.querySelector('#' + this.feedbackContainerId)))\n      .clickOutsideToClose(true)\n      .title(this.$translate('FEEDBACK'))\n      .htmlContent(this.autoFeedbackString)\n      .ariaLabel(this.$translate('FEEDBACK'))\n      .ok(this.$translate('CLOSE'))\n    );\n  }\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * The authoring view show save button checkbox was clicked\n   */\n  authoringViewShowSaveButtonClicked() {\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The authoring view show submit button checkbox was clicked\n   */\n  authoringViewShowSubmitButtonClicked() {\n\n    if (!this.authoringComponentContent.showSubmitButton) {\n      /*\n       * we are not showing the submit button to the student so\n       * we will clear the max submit count\n       */\n      this.authoringComponentContent.maxSubmitCount = null;\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose the background image\n   */\n  chooseBackgroundImage() {\n\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = 'background';\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose an image for the node\n   * @param conceptMapNodeId the id of the node in the concept map\n   */\n  chooseNodeImage(conceptMapNodeId) {\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = conceptMapNodeId;\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n\n  /**\n   * Check whether we need to show the snip button\n   * @return whether to show the snip button\n   */\n  showSnipButton() {\n    if (this.NotebookService.isNotebookEnabled() && this.isSnipButtonVisible) {\n      return true;\n    } else {\n      return false;\n    }\n  }\n\n  /**\n   * Snip the concept map by converting it to an image\n   * @param $event the click event\n   */\n  snip($event) {\n    // get the svg element. this will obtain an array.\n    var svgElement = angular.element('#svg_' + this.nodeId + '_' + this.componentId);\n\n    if (svgElement != null && svgElement.length > 0) {\n      // get the svg element\n      svgElement = svgElement[0];\n\n      // get the svg element as a string\n      var serializer = new XMLSerializer();\n      var svgString = serializer.serializeToString(svgElement);\n\n      // find all the images in the svg and replace them with Base64 images\n      this.ConceptMapService.getHrefToBase64ImageReplacements(svgString).then((images) => {\n\n        /*\n         * Loop through all the image objects. Each object contains\n         * an image href and a Base64 image.\n         */\n        for (var i = 0; i < images.length; i++) {\n\n          // get an image object\n          var imagePair = images[i];\n\n          // get the image href e.g. /wise/curriculum/25/assets/Sun.png\n          var imageHref = imagePair.imageHref;\n\n          // get the Base64 image\n          var base64Image = imagePair.base64Image;\n\n          // create a regex to match the image href\n          var imageRegEx = new RegExp(imageHref, 'g');\n\n          /*\n           * replace all the instances of the image href with the\n           * Base64 image\n           */\n          svgString = svgString.replace(imageRegEx, base64Image);\n        }\n\n        // create a canvas to draw the image on\n        var myCanvas = document.createElement('canvas');\n        var ctx = myCanvas.getContext('2d');\n\n        // create an svg blob\n        var svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n        var domURL = self.URL || self.webkitURL || self;\n        var url = domURL.createObjectURL(svg);\n        var image = new Image();\n\n        /*\n         * set the UtilService in a local variable so we can access it\n         * in the onload callback function\n         */\n        var thisUtilService = this.UtilService;\n\n        // the function that is called after the image is fully loaded\n        image.onload = (event) => {\n\n          // get the image that was loaded\n          var image = event.target;\n\n          // set the dimensions of the canvas\n          myCanvas.width = image.width;\n          myCanvas.height = image.height;\n          ctx.drawImage(image, 0, 0);\n\n          // get the canvas as a Base64 string\n          var base64Image = myCanvas.toDataURL('image/png');\n\n          // get the image object\n          var imageObject = thisUtilService.getImageObjectFromBase64String(base64Image, false);\n\n          // create a notebook item with the image populated into it\n          this.NotebookService.addNote($event, imageObject);\n        };\n\n        // set the src of the image so that the image gets loaded\n        image.src = url;\n      });\n    }\n  }\n\n  /**\n   * Add a connected component\n   */\n  addConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.updateOn = 'change';\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  deleteConnectedComponent(index) {\n\n    if (this.authoringComponentContent.connectedComponents != null) {\n      this.authoringComponentContent.connectedComponents.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Set the show submit button value\n   * @param show whether to show the submit button\n   */\n  setShowSubmitButtonValue(show) {\n\n    if (show == null || show == false) {\n      // we are hiding the submit button\n      this.authoringComponentContent.showSaveButton = false;\n      this.authoringComponentContent.showSubmitButton = false;\n    } else {\n      // we are showing the submit button\n      this.authoringComponentContent.showSaveButton = true;\n      this.authoringComponentContent.showSubmitButton = true;\n    }\n\n    /*\n     * notify the parent node that this component is changing its\n     * showSubmitButton value so that it can show save buttons on the\n     * step or sibling components accordingly\n     */\n    this.$scope.$emit('componentShowSubmitButtonValueChanged', {nodeId: this.nodeId, componentId: this.componentId, showSubmitButton: show});\n  }\n\n  /**\n   * The showSubmitButton value has changed\n   */\n  showSubmitButtonValueChanged() {\n\n    /*\n     * perform additional processing for when we change the showSubmitButton\n     * value\n     */\n    this.setShowSubmitButtonValue(this.authoringComponentContent.showSubmitButton);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      let mergedNodes = [];\n      let mergedLinks = [];\n      let backgroundPath = null;\n      let stretchBackground = null;\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n\n        if (componentState.componentType == 'ConceptMap') {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            let conceptMapData = studentData.conceptMapData;\n\n            if (conceptMapData != null) {\n              if (conceptMapData.nodes != null) {\n                // add the nodes to our merged nodes\n                mergedNodes = mergedNodes.concat(conceptMapData.nodes);\n              }\n\n              if (conceptMapData.links != null) {\n                // add the links to our merged links\n                mergedLinks = mergedLinks.concat(conceptMapData.links);\n              }\n\n              if (conceptMapData.backgroundPath != null &&\n                  conceptMapData.backgroundPath != '') {\n                backgroundPath = conceptMapData.backgroundPath;\n                stretchBackground = conceptMapData.stretchBackground;\n              }\n            }\n          }\n        } else if (componentState.componentType == 'Draw' ||\n            componentState.componentType == 'Embedded' ||\n            componentState.componentType == 'Graph' ||\n            componentState.componentType == 'Label' ||\n            componentState.componentType == 'Table') {\n          let connectedComponent =\n              this.UtilService.getConnectedComponentByComponentState(this.componentContent, componentState);\n          if (connectedComponent.importWorkAsBackground === true) {\n            this.setComponentStateAsBackgroundImage(componentState);\n          }\n        }\n      }\n\n      if (this.componentContent.background != null &&\n          this.componentContent.background != '') {\n        // use the background from this component\n        backgroundPath = this.componentContent.background;\n        if (this.componentContent.stretchBackground) {\n          stretchBackground = this.componentContent.stretchBackground;\n        }\n      }\n\n      // set the merged nodes and links into the merged component state\n      mergedComponentState.studentData = {};\n      mergedComponentState.studentData.conceptMapData = {};\n      mergedComponentState.studentData.conceptMapData.nodes = mergedNodes;\n      mergedComponentState.studentData.conceptMapData.links = mergedLinks;\n      mergedComponentState.studentData.conceptMapData.backgroundPath = backgroundPath;\n      if (stretchBackground != null) {\n        mergedComponentState.studentData.conceptMapData.stretchBackground = stretchBackground;\n      }\n    }\n\n    /*\n     * inject the asset path so that the file name is changed to\n     * a relative path\n     * e.g.\n     * \"Sun.png\"\n     * will be changed to\n     * \"/wise/curriculum/108/assets/Sun.png\"\n     */\n    mergedComponentState = this.ProjectService.injectAssetPaths(mergedComponentState);\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Create an image from a component state and set the image as the background.\n   * @param componentState A component state.\n   */\n  setComponentStateAsBackgroundImage(componentState) {\n    this.UtilService.generateImageFromComponentState(componentState).then((image) => {\n      this.setBackgroundImage(image.url);\n    });\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'importWork';\n          this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      delete connectedComponent.importWorkAsBackground;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n      this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * If the component type is a certain type, we will set the importWorkAsBackground\n   * field to true.\n   * @param connectedComponent The connected component object.\n   */\n  authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent) {\n    let componentType = this.authoringGetConnectedComponentType(connectedComponent);\n    if (componentType == 'Draw' ||\n        componentType == 'Embedded' ||\n        componentType == 'Graph' ||\n        componentType == 'Label' ||\n        componentType == 'Table') {\n      connectedComponent.importWorkAsBackground = true;\n    } else {\n      delete connectedComponent.importWorkAsBackground;\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Set the background image on the svg canvas\n   * @param backgroundPath the absolute path to the background image\n   * @param stretchBackground whether to stretch the background to cover the\n   * whole svg background\n   */\n  setBackgroundImage(backgroundPath, stretchBackground) {\n    this.background = backgroundPath;\n    this.stretchBackground = stretchBackground;\n\n    if (stretchBackground) {\n      // stretch the background to fit the whole svg element\n      this.backgroundSize = '100% 100%';\n    } else {\n      // use the original dimensions of the background image\n      this.backgroundSize = '';\n    }\n  }\n\n  /**\n   * The show JSON button was clicked to show or hide the JSON authoring\n   */\n  showJSONButtonClicked() {\n    // toggle the JSON authoring textarea\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n\n    if (this.jsonStringChanged && !this.showJSONAuthoring) {\n      /*\n       * the author has changed the JSON and has just closed the JSON\n       * authoring view so we will save the component\n       */\n      this.advancedAuthoringViewComponentChanged();\n\n      // scroll to the top of the component\n      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });\n\n      this.jsonStringChanged = false;\n    }\n  }\n\n  /**\n   * The author has changed the JSON manually in the advanced view\n   */\n  authoringJSONChanged() {\n    this.jsonStringChanged = true;\n  }\n\n  /**\n   * The \"Import Work As Background\" checkbox was clicked.\n   * @param connectedComponent The connected component associated with the\n   * checkbox.\n   */\n  authoringImportWorkAsBackgroundClicked(connectedComponent) {\n    if (!connectedComponent.importWorkAsBackground) {\n      delete connectedComponent.importWorkAsBackground;\n    }\n    this.authoringViewComponentChanged();\n  }\n};\n\nConceptMapController.$inject = [\n  '$anchorScroll',\n  '$filter',\n  '$injector',\n  '$location',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$scope',\n  '$timeout',\n  'AnnotationService',\n  'ConceptMapService',\n  'ConfigService',\n  'CRaterService',\n  'NodeService',\n  'NotebookService',\n  'ProjectService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default ConceptMapController;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/conceptMap/conceptMapService.es6 b/src/main/webapp/wise5/components/conceptMap/conceptMapService.es6
index 612851292f..b11d475e59 100644
--- a/src/main/webapp/wise5/components/conceptMap/conceptMapService.es6
+++ b/src/main/webapp/wise5/components/conceptMap/conceptMapService.es6
@@ -1,6 +1,6 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class ConceptMapService extends NodeService {
+class ConceptMapService extends ComponentService {
   constructor(
       $anchorScroll,
       $filter,
@@ -11,40 +11,22 @@ class ConceptMapService extends NodeService {
       StudentAssetService,
       StudentDataService,
       UtilService) {
-    super();
+    super($filter, StudentDataService, UtilService);
     this.$anchorScroll = $anchorScroll;
-    this.$filter = $filter;
     this.$location = $location;
     this.$q = $q;
     this.$timeout = $timeout;
     this.ConfigService = ConfigService;
     this.StudentAssetService = StudentAssetService;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Concept Map"
-   */
   getComponentTypeLabel() {
     return this.$translate('conceptMap.componentTypeLabel');
   }
 
-  /**
-   * Create a ConceptMap component object
-   * @returns a new ConceptMap component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'ConceptMap';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
-    component.isStudentAttachmentEnabled = false;
     component.width = 800;
     component.height = 600;
     component.background = null;
@@ -60,62 +42,6 @@ class ConceptMapService extends NodeService {
     return component;
   }
 
-  /**
-   * Copies a ConceptMap component object
-   * @returns a copied ConceptMap component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.starterSentence = componentToCopy.starterSentence;
-    component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;
-    return component;
-  }
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'ConceptMap') {
-        // the other component is an ConceptMap component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     let result = false;
 
@@ -799,33 +725,6 @@ class ConceptMapService extends NodeService {
     return result;
   }
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
   /**
    * Populate the concept map data into the component
    * @param draw the SVG draw div
diff --git a/src/main/webapp/wise5/components/conceptMap/conceptMapService.js b/src/main/webapp/wise5/components/conceptMap/conceptMapService.js
index 56a36621be..1e97901242 100644
--- a/src/main/webapp/wise5/components/conceptMap/conceptMapService.js
+++ b/src/main/webapp/wise5/components/conceptMap/conceptMapService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,55 +20,33 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var ConceptMapService = function (_NodeService) {
-  _inherits(ConceptMapService, _NodeService);
+var ConceptMapService = function (_ComponentService) {
+  _inherits(ConceptMapService, _ComponentService);
 
   function ConceptMapService($anchorScroll, $filter, $location, $q, $timeout, ConfigService, StudentAssetService, StudentDataService, UtilService) {
     _classCallCheck(this, ConceptMapService);
 
-    var _this = _possibleConstructorReturn(this, (ConceptMapService.__proto__ || Object.getPrototypeOf(ConceptMapService)).call(this));
+    var _this = _possibleConstructorReturn(this, (ConceptMapService.__proto__ || Object.getPrototypeOf(ConceptMapService)).call(this, $filter, StudentDataService, UtilService));
 
     _this.$anchorScroll = $anchorScroll;
-    _this.$filter = $filter;
     _this.$location = $location;
     _this.$q = $q;
     _this.$timeout = $timeout;
     _this.ConfigService = ConfigService;
     _this.StudentAssetService = StudentAssetService;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
     return _this;
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Concept Map"
-   */
-
-
   _createClass(ConceptMapService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('conceptMap.componentTypeLabel');
     }
-
-    /**
-     * Create a ConceptMap component object
-     * @returns a new ConceptMap component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(ConceptMapService.prototype.__proto__ || Object.getPrototypeOf(ConceptMapService.prototype), 'createComponent', this).call(this);
       component.type = 'ConceptMap';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
-      component.isStudentAttachmentEnabled = false;
       component.width = 800;
       component.height = 600;
       component.background = null;
@@ -81,72 +61,8 @@ var ConceptMapService = function (_NodeService) {
       component.showAutoFeedback = false;
       return component;
     }
-
-    /**
-     * Copies a ConceptMap component object
-     * @returns a copied ConceptMap component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.starterSentence = componentToCopy.starterSentence;
-      component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;
-      return component;
-    }
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-
-  }, {
-    key: 'populateComponentState',
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'ConceptMap') {
-          // the other component is an ConceptMap component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       var result = false;
 
@@ -885,42 +801,6 @@ var ConceptMapService = function (_NodeService) {
       return result;
     }
 
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-
-  }, {
-    key: 'componentHasWork',
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
     /**
      * Populate the concept map data into the component
      * @param draw the SVG draw div
@@ -1687,7 +1567,7 @@ var ConceptMapService = function (_NodeService) {
   }]);
 
   return ConceptMapService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 /**
  * A ConceptMapNode that represents a node in the ConceptMap component
diff --git a/src/main/webapp/wise5/components/conceptMap/conceptMapService.js.map b/src/main/webapp/wise5/components/conceptMap/conceptMapService.js.map
index 36cfc1e9dd..e80b7254d9 100644
--- a/src/main/webapp/wise5/components/conceptMap/conceptMapService.js.map
+++ b/src/main/webapp/wise5/components/conceptMap/conceptMapService.js.map
@@ -1 +1 @@
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NodeService from '../../services/nodeService';\n\nclass ConceptMapService extends NodeService {\n  constructor(\n      $anchorScroll,\n      $filter,\n      $location,\n      $q,\n      $timeout,\n      ConfigService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$anchorScroll = $anchorScroll;\n    this.$filter = $filter;\n    this.$location = $location;\n    this.$q = $q;\n    this.$timeout = $timeout;\n    this.ConfigService = ConfigService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Concept Map\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('conceptMap.componentTypeLabel');\n  }\n\n  /**\n   * Create a ConceptMap component object\n   * @returns a new ConceptMap component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'ConceptMap';\n    component.prompt = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.isStudentAttachmentEnabled = false;\n    component.width = 800;\n    component.height = 600;\n    component.background = null;\n    component.stretchBackground = null;\n    component.nodes = [];\n    component.linksTitle = '';\n    component.links = [];\n    component.rules = [];\n    component.starterConceptMap = null;\n    component.customRuleEvaluator = '';\n    component.showAutoScore = false;\n    component.showAutoFeedback = false;\n    return component;\n  }\n\n  /**\n   * Copies a ConceptMap component object\n   * @returns a copied ConceptMap component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.starterSentence = componentToCopy.starterSentence;\n    component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;\n    return component;\n  }\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'ConceptMap') {\n        // the other component is an ConceptMap component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.isSubmit == true || (state.studentData.submitCounter != null && state.studentData.submitCounter > 0)) {\n              // there is a response so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.conceptMapData != null) {\n            // there is a response so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Create an instance of the ConceptMapNode class\n   * @param draw the svg.js draw object\n   * @param id the node id\n   * @param filePath the file path of the image\n   * @param label the label of the node\n   * @param x the x coordinate\n   * @param y the y coordinate\n   * @param width the width of the image\n   * @param height the height of the image\n   * @param a ConceptMapNode\n   */\n  newConceptMapNode(draw, id, originalId, filePath, label, x, y, width, height) {\n    return new ConceptMapNode(this, draw, id, originalId, filePath, label, x, y, width, height);\n  }\n\n  /**\n   * Create an instance of the ConceptMapLink class\n   * @param draw the svg.js draw object\n   * @param id the link id\n   * @param node the source ConceptMapNode that the link is coming out of\n   * @param x the x position of the tail\n   * @param y the y position of the tail\n   * @returns a ConceptMapLink\n   */\n  newConceptMapLink(draw, id, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, startCurveDown) {\n    return new ConceptMapLink(this, draw, id, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, startCurveDown);\n  }\n\n  /**\n   * Get the slope of the line between two points\n   * @param x1 x position of the first point\n   * @param y1 y position of the first point\n   * @param x2 x position of the second point\n   * @param y2 y position of the second point\n   * @returns the slope of the line or null if the slope is infinite\n   */\n  getSlope(x1, y1, x2, y2) {\n\n    var slope = null;\n\n    if ((x2 - x1) == 0) {\n      // the slope is infinite so we will return null\n      slope = null;\n    } else {\n      // calculate the slope\n      slope = (y2 - y1) / (x2 - x1);\n    }\n\n    return slope;\n  }\n\n  /**\n   * Calculate the euclidean distance between two points\n   * @param x1 x position of the first point\n   * @param y1 y position of the first point\n   * @param x2 x position of the second point\n   * @param y2 y position of the second point\n   * @returns the distance between the two points\n   */\n  calculateDistance(x1, y1, x2, y2) {\n\n    // calculate the distance\n    var distance = Math.sqrt(Math.pow((x2 - x1), 2) + Math.pow((y2 - y1), 2));\n\n    return distance;\n  }\n\n  /**\n\n  Returns an array representation of the path elements for an arrow\n\n  First we calculate a simple curve for the tail.\n\n  Then we pick a point on that curve to use as the base-center of the arrow head,\n  then calculate the position of that triangle based on the angle between that\n  point and the tip.\n\n  @params startx {Number} X-coordinate of the start point\n  @params starty {Number} Y-coordinate of the start point\n  @params endx {Number} X-coordinate of the end point\n  @params endy {Number} Y-coordinate of the end point\n  @params len {Number} Length of the \"tip\" of the arrowhead\n  @params angle {Number} Angle in degrees\n    between the line and each wing of the arrowhead.\n    Should be less than 90.\n\n  Note: This function and the associated functions that are called by this\n  function are taken from the Concord MySystem github project.\n  https://github.com/concord-consortium/mysystem_sc\n  The code is found in the arrow_drawing.js file.\n  mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n\n  **/\n  arrowPathArrays(startx,starty,endx,endy,startCurveUp,endCurveUp,len,angle,curvature,nodeRadius) {\n\n    if (startx === endx && starty === endy){\n      return [[\"\"],[\"\"]];\n    }\n\n    var start = new this.coord(startx, starty),\n    tip = new this.coord(endx, endy),\n    pathData   = [],\n    arrowHeadData = [];\n\n    // calculate control points c2 and c3\n    var curveDistance = (tip.x - start.x) * curvature,\n    startYCurveDistance = (curveDistance === 0 ? 1 : Math.max(Math.min(curveDistance, 100), -100)),\n    endYCurveDistance = startYCurveDistance,\n    startUp = startCurveUp ? 1 : -1,\n    endUp = endCurveUp ? 1 : -1;\n    startYCurveDistance = (startYCurveDistance * startUp > 0) ? startYCurveDistance : startYCurveDistance * -1;\n    endYCurveDistance = (endYCurveDistance * endUp > 0) ? endYCurveDistance : endYCurveDistance * -1;\n    var c2 = new this.coord(start.x+(curveDistance/2), start.y-startYCurveDistance),\n    c3 = new this.coord(tip.x-(curveDistance/2), tip.y-endYCurveDistance),\n    cDistance = Math.sqrt(Math.pow((curveDistance/2),2) + Math.pow(startYCurveDistance,2)),\n    perimX = nodeRadius*(curveDistance/2)/cDistance,\n    perimYstart = nodeRadius*startYCurveDistance/cDistance,\n    perimYend = nodeRadius*endYCurveDistance/cDistance;\n\n    // update tip\n    tip = new this.coord(tip.x - perimX, tip.y - perimYend);\n\n    // draw arrow path\n\n    pathData.push(\"M\", start.x + perimX, start.y - perimYstart);  // move to start of line\n    pathData.push(\"C\", c2.x, c2.y, c3.x, c3.y, tip.x, tip.y); // curve line to the tip\n\n    // draw arrow head\n    var percLengthOfHead = len / this.getLengthOfCubicBezier(start, c2, c3, tip),\n    centerBaseOfHead = this.getPointOnCubicBezier(percLengthOfHead, start, c2, c3, tip),\n    theta  = Math.atan2((tip.y-centerBaseOfHead.y),(tip.x-centerBaseOfHead.x)),\n    baseAngleA = theta + angle * Math.PI/180,\n    baseAngleB = theta - angle * Math.PI/180,\n    baseA    = new this.coord(tip.x - len * Math.cos(baseAngleA), tip.y - len * Math.sin(baseAngleA)),\n    baseB    = new this.coord(tip.x - len * Math.cos(baseAngleB), tip.y - len * Math.sin(baseAngleB));\n\n    arrowHeadData.push(\"M\", tip.x, tip.y);\n    arrowHeadData.push(\"L\", baseA.x, baseA.y);  // line to baseA\n    arrowHeadData.push(\"L\", baseB.x, baseB.y);  // line to baseB\n    arrowHeadData.push(\"L\", tip.x,   tip.y  );  // line back to the tip\n\n    return [pathData, arrowHeadData];\n  }\n\n  /**\n   * Note: This function is from\n   * https://github.com/concord-consortium/mysystem_sc\n   * The code is found in the arrow_drawing.js file.\n   * mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n   */\n  coord(x,y) {\n    if(!x) x = 0;\n    if(!y) y = 0;\n    /*\n    *   Limit precision of decimals for SVG rendering.\n    *   otherwise we get really long SVG strings,\n    *   and webkit error messsages like of this sort:\n    *   \"Error: Problem parsing d='<svg string with long dec>'\"\n    */\n    x = Math.round(x * 1000)/1000;\n    y = Math.round(y * 1000)/1000;\n    return {x: x, y: y};\n  }\n\n  /**\n   * Note: This function is from\n   * https://github.com/concord-consortium/mysystem_sc\n   * The code is found in the arrow_drawing.js file.\n   * mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n   */\n  getLengthOfCubicBezier(C1,C2,C3,C4)\n  {\n    var precision = 10,\n    length  = 0,\n    t,\n    currentPoint,\n    previousPoint;\n\n    for (var i = 0; i<precision; i++){\n      t = i/precision;\n      currentPoint = this.getPointOnCubicBezier(t, C1,C2,C3,C4);\n      if (i > 0){\n        var xDif = currentPoint.x - previousPoint.x,\n        yDif = currentPoint.y - previousPoint.y;\n        length += Math.sqrt((xDif*xDif) + (yDif*yDif));\n      }\n      previousPoint = currentPoint;\n    }\n    return length;\n  }\n\n  /**\n   * Note: This function is from\n   * https://github.com/concord-consortium/mysystem_sc\n   * The code is found in the arrow_drawing.js file.\n   * mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n   */\n  getPointOnCubicBezier(percent,C1,C2,C3,C4) {\n    if (percent < 0) percent = 0;\n    if (percent > 1) percent = 1;\n    var pos = new this.coord();\n    pos.x = C1.x*this.B1(percent) + C2.x*this.B2(percent) + C3.x*this.B3(percent) + C4.x*this.B4(percent);\n    pos.y = C1.y*this.B1(percent) + C2.y*this.B2(percent) + C3.y*this.B3(percent) + C4.y*this.B4(percent);\n    return pos;\n  }\n\n  /**\n   * Note: These functions are from\n   * https://github.com/concord-consortium/mysystem_sc\n   * The code is found in the arrow_drawing.js file.\n   * mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n   */\n  B1(t) { return t*t*t; }\n  B2(t) { return 3*t*t*(1-t); }\n  B3(t) { return 3*t*(1-t)*(1-t); }\n  B4(t) { return (1-t)*(1-t)*(1-t); }\n\n  /**\n   * Evaluate a rule name\n   * @param componentContent the component content\n   * @param conceptMapData the student concept map data\n   * @param ruleName the rule name\n   * @returns whether the rule was satisfied\n   */\n  evaluateRuleByRuleName(componentContent, conceptMapData, ruleName) {\n\n    var result = false;\n\n    if (ruleName === true) {\n      // the rule name is not actually a rule but is the true boolean\n      return true;\n    } else if (ruleName === false) {\n      // the rule name is not actually a rule but is the false boolean\n      return false;\n    }\n\n    // get the rule\n    var rule = this.getRuleByRuleName(componentContent, ruleName);\n\n    if (rule == null) {\n      /*\n       * we didn't find a rule with the given rule name so we will look\n       * for a category with that name\n       */\n\n      // get the rules that are in the category\n      var rules = this.getRulesByCategoryName(componentContent, ruleName);\n\n      var firstRule = true;\n\n      if (rules != null) {\n\n        /*\n         * loop through all the rules in the category. we will say the\n         * category is satisfied if all the rules in the category\n         * evaluate to true.\n         */\n        for (var r = 0; r < rules.length; r++) {\n          var tempRule = rules[r];\n\n          // evaluate the rule\n          var tempResult = this.evaluateRule(conceptMapData, tempRule);\n\n          if (firstRule) {\n            /*\n             * this is the first rule so we will set the value\n             * of the rule to the result\n             */\n            result = tempResult;\n            firstRule = false;\n          } else {\n            /*\n             * this is not the first rule so we will compute the\n             * \"logical and\" of the result so far and this rule's\n             * result\n             */\n            result = result && tempResult;\n          }\n\n          if (!result) {\n            /*\n             * the result is false so we can short circuit and\n             * stop looping since we have now just found that\n             * one of the rules is not satisfied which means\n             * the category is not satisfied.\n             */\n            break;\n          }\n        }\n      }\n    } else {\n      // evaluate the rule\n      result = this.evaluateRule(conceptMapData, rule);\n    }\n\n    return result;\n  }\n\n  /**\n   * Evaluate a rule\n   * @param conceptMapData the concept map student data\n   * @param rule the rule object\n   * @returns whether the rule was satisfied\n   */\n  evaluateRule(conceptMapData, rule) {\n\n    var result = false;\n\n    if (rule != null) {\n\n      if (rule.type == 'node') {\n        // this is a node rule\n\n        // get the node we are looking for\n        var nodeLabel = rule.nodeLabel;\n\n        // get all the nodes with the given label\n        var nodes = this.getNodesByLabel(conceptMapData, nodeLabel);\n\n        // get the number of nodes with the given label\n        var nodeCount = nodes.length;\n\n        /*\n         * the comparison for the number which can be \"exactly\",\n         * \"more than\", or \"less than\"\n         */\n        var comparison = rule.comparison;\n\n        // the number to compare to\n        var number = rule.number;\n\n        if (comparison == 'exactly') {\n          /*\n           * we are looking for an exact number of nodes with the\n           * given label\n           */\n          if (nodeCount == number) {\n            result = true;\n          }\n        } else if (comparison == 'more than') {\n          /*\n           * we are looking for more than a certain number of nodes\n           * with the given label\n           */\n          if (nodeCount > number) {\n            result = true;\n          }\n        } else if (comparison == 'less than') {\n          /*\n           * we are looking for less than a certain number of nodes\n           * with the given label\n           */\n          if (nodeCount < number) {\n            result = true;\n          }\n        }\n\n        if (rule.not) {\n          /*\n           * the rule is satisfied if the result is false so we will\n           * negate the result\n           */\n          result = !result;\n        }\n\n      } else if (rule.type == 'link') {\n        // this is a link rule\n\n        // get the source node label\n        var nodeLabel = rule.nodeLabel;\n\n        // get the link label\n        var linkLabel = rule.linkLabel;\n\n        // get the destination node label\n        var otherNodeLabel = rule.otherNodeLabel;\n\n        // get all the links with the matching labels\n        var links = this.getLinksByLabels(conceptMapData, nodeLabel, linkLabel, otherNodeLabel);\n\n        // get the number of links with the matching labels\n        var linkCount = links.length;\n\n        /*\n         * the comparison for the number which can be \"exactly\",\n         * \"more than\", or \"less than\"\n         */\n        var comparison = rule.comparison;\n\n        // the number to compare to\n        var number = rule.number;\n\n        if (comparison == 'exactly') {\n          // we are looking for an exact number of links\n          if (linkCount == number) {\n            result = true;\n          }\n        } else if (comparison == 'more than') {\n          // we are looking for more than a certain number of links\n          if (linkCount > number) {\n            result = true;\n          }\n        } else if (comparison == 'less than') {\n          // we are looking for less than a certain number of links\n          if (linkCount < number) {\n            result = true;\n          }\n        }\n\n        if (rule.not) {\n          /*\n           * the rule is satisfied if the result is false so we will\n           * negate the result\n           */\n          result = !result;\n        }\n      }\n    }\n\n    return result;\n  }\n\n  /**\n   * Get a rule by the rule name\n   * @param componentContent the concept map component content\n   * @param ruleName the rule name\n   * @returns the rule with the given rule name\n   */\n  getRuleByRuleName(componentContent, ruleName) {\n\n    var rule = null;\n\n    if (ruleName != null) {\n\n      // get the rules\n      var rules = componentContent.rules;\n\n      if (rules != null) {\n\n        // loop through all the rules\n        for (var r = 0; r < rules.length; r++) {\n\n          // get a rule\n          var tempRule = rules[r];\n\n          if (tempRule != null) {\n\n            if (ruleName == tempRule.name) {\n              // we have found the rule with the name we want\n              rule = tempRule;\n            }\n          }\n        }\n      }\n    }\n\n    return rule;\n  }\n\n  /**\n   * Get the rules in the category\n   * @param componentContent the component content\n   * @param category the category name\n   * @returns the rules in the category\n   */\n  getRulesByCategoryName(componentContent, category) {\n\n    var rules = [];\n\n    if (componentContent != null) {\n\n      // get all the rules\n      var tempRules = componentContent.rules;\n\n      if (tempRules != null) {\n\n        // loop through all the rules\n        for (var r = 0; r < tempRules.length; r++) {\n          var rule = tempRules[r];\n\n          if (rule != null) {\n\n            // get the categories the rule is in\n            var categories = rule.categories;\n\n            if (categories != null) {\n\n              // loop through categories the rule is in\n              for (var c = 0; c < categories.length; c++) {\n                var tempCategory = categories[c];\n\n                if (category == tempCategory) {\n                  /*\n                   * the rule is in the category we are\n                   * searching for\n                   */\n                  rules.push(rule);\n                  break;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return rules;\n  }\n\n  /**\n   * Get nodes by label\n   * @param conceptMapData the concept map student data\n   * @param label the node label to look for\n   * @returns all the nodes with the given label\n   */\n  getNodesByLabel(conceptMapData, label) {\n\n    var nodesByLabel = [];\n\n    if (conceptMapData != null) {\n\n      var nodes = conceptMapData.nodes;\n\n      if (nodes != null) {\n\n        // loop through all the nodes\n        for (var n = 0; n < nodes.length; n++) {\n          var node = nodes[n];\n\n          if (node != null) {\n\n            if (label == node.label || label == 'any') {\n              /*\n               * we have found a node with the label we are\n               * looking for\n               */\n              nodesByLabel.push(node);\n            }\n          }\n        }\n      }\n    }\n\n    return nodesByLabel;\n  }\n\n  /**\n   * Get links with the given source node label, link label, and destination\n   * node label\n   * @param conceptMapData the concept map student data\n   * @param nodeLabel the source node label\n   * @param linkLabel the link label\n   * @param otherNodeLabel the destination node label\n   * @returns the links with the given source node label, link label, and\n   * destination node label\n   */\n  getLinksByLabels(conceptMapData, nodeLabel, linkLabel, otherNodeLabel) {\n\n    var resultLinks = [];\n\n    if (conceptMapData != null) {\n\n      var links = conceptMapData.links;\n\n      if (links != null) {\n\n        // loop through all the links\n        for (var l = 0; l < links.length; l++) {\n          var tempLink = links[l];\n\n          if (tempLink != null) {\n\n            // get the labels\n            var tempLinkLabel = tempLink.label;\n            var sourceNodeLabel = tempLink.sourceNodeLabel;\n            var destinationNodeLabel = tempLink.destinationNodeLabel;\n\n            if ((nodeLabel == sourceNodeLabel || nodeLabel == 'any') &&\n              (linkLabel == tempLinkLabel || linkLabel == 'any') &&\n              (otherNodeLabel == destinationNodeLabel || otherNodeLabel == 'any')) {\n\n              // the labels match the ones we are looking for\n              resultLinks.push(tempLink);\n            }\n          }\n        }\n      }\n    }\n\n    return resultLinks;\n  }\n\n  /**\n   * Check if any of the rules are satisfied\n   * @param componentContent the concept map component content\n   * @param conceptMapData the concept map student data\n   * @param args an array of rule names\n   * @returns true if any of the rules are satisifed\n   * false if none of the rules are satisified\n   */\n  any(componentContent, conceptMapData, args) {\n\n    // loop through all the rule names\n    for (var n = 0; n < args.length; n++) {\n\n      // get a rule name\n      var ruleName = args[n];\n\n      // check if the rule is satisifed\n      var ruleResult = this.evaluateRuleByRuleName(componentContent, conceptMapData, ruleName);\n\n      if (ruleResult) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if all the rules are satisfied\n   * @param componentContent the concept map component content\n   * @param conceptMapData the concept map student data\n   * @param args an array of rule names\n   * @returns true if all the rules are satisifed\n   * false if any of the rules are not satisfied\n   */\n  all(componentContent, conceptMapData, args) {\n    var result = true;\n\n    // loop through all the rule names\n    for (var n = 0; n < args.length; n++) {\n\n      // get a rule name\n      var ruleName = args[n];\n\n      // check if the rule is satisfied\n      var ruleResult = this.evaluateRuleByRuleName(componentContent, conceptMapData, ruleName);\n\n      result = result && ruleResult;\n    }\n    return result;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Populate the concept map data into the component\n   * @param draw the SVG draw div\n   * @param conceptMapData the concept map data which contains an array\n   * of nodes and an array of links\n   */\n  populateConceptMapData(draw, conceptMapData) {\n\n    if (conceptMapData != null) {\n\n      // get the JSON nodes\n      var nodes = conceptMapData.nodes;\n\n      // this is used to hold the SVG node objects\n      var conceptMapNodes = [];\n\n      if (nodes != null) {\n\n        // loop through all the nodes\n        for (var n = 0; n < nodes.length; n++) {\n          var node = nodes[n];\n\n          var instanceId = node.instanceId;\n          var originalId = node.originalId;\n          var filePath = node.fileName;\n          var label = node.label;\n          var x = node.x;\n          var y = node.y;\n          var width = node.width;\n          var height = node.height\n\n          // create a ConceptMapNode\n          var conceptMapNode = this.newConceptMapNode(draw, instanceId, originalId, filePath, label, x, y, width, height);\n\n          conceptMapNodes.push(conceptMapNode);\n        }\n      }\n\n      // get the JSON links\n      var links = conceptMapData.links;\n\n      // this is used to hold the SVG link objects\n      var conceptMapLinks = [];\n\n      if (links != null) {\n\n        // loop through all the links\n        for (var l = 0; l < links.length; l++) {\n          var link = links[l];\n\n          var instanceId = link.instanceId;\n          var originalId = link.originalId;\n          var sourceNodeId = link.sourceNodeInstanceId;\n          var destinationNodeId = link.destinationNodeInstanceId;\n          var label = link.label;\n          var color = link.color;\n          var curvature = link.curvature;\n          var startCurveUp = link.startCurveUp;\n          var endCurveUp = link.endCurveUp;\n          var sourceNode = null;\n          var destinationNode = null;\n\n          if (sourceNodeId != null) {\n            sourceNode = this.getNodeById(conceptMapNodes, sourceNodeId);\n          }\n\n          if (destinationNodeId != null) {\n            destinationNode = this.getNodeById(conceptMapNodes, destinationNodeId);\n          }\n\n          // create a ConceptMapLink\n          var conceptMapLink = this.newConceptMapLink(draw, instanceId, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, endCurveUp);\n\n          conceptMapLinks.push(conceptMapLink);\n        }\n      }\n\n      /*\n       * move the link text group to the front so that they are on top\n       * of links\n       */\n      this.moveLinkTextToFront(conceptMapLinks);\n\n      // move the nodes to the front so that they are on top of links\n      this.moveNodesToFront(conceptMapNodes);\n\n      /*\n       * set a timeout to refresh the link labels so that the rectangles\n       * around the labels are properly resized\n       */\n      // this.$timeout(() => {\n      //   this.refreshLinkLabels(conceptMapNodes, conceptMapLinks);\n      // });\n      this.refreshLinkLabels(conceptMapNodes, conceptMapLinks);\n    }\n  }\n\n  /**\n   * Move the link text group to the front\n   */\n  moveLinkTextToFront(links) {\n\n    // loop through all the links\n    for (var l = 0; l < links.length; l++) {\n      var link = links[l];\n\n      if (link != null) {\n        // move the link text group to the front\n        link.moveTextGroupToFront();\n      }\n    }\n  }\n\n  /**\n   * Move the nodes to the front so that they show up above links\n   */\n  moveNodesToFront(nodes) {\n\n    // loop through all the nodes\n    for (var n = 0; n < nodes.length; n++) {\n      var node = nodes[n];\n\n      if (node != null) {\n\n        // get a node group\n        var group = node.getGroup();\n\n        if (group != null) {\n          // move the node group to the front\n          group.front();\n        }\n      }\n    }\n  }\n\n  /**\n   * Refresh the link labels so that the rectangles around the text\n   * labels are resized to fit the text properly. This is required because\n   * the rectangles are not properly sized when the ConceptMapLinks are\n   * initialized. The rectangles need to be rendered first and then the\n   * labels need to be set in order for the rectangles to be resized properly.\n   * This is why this function is called in a $timeout.\n   */\n  refreshLinkLabels(nodes, links) {\n\n    if (nodes != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < nodes.length; n++) {\n        var node = nodes[n];\n\n        if (node != null) {\n          // get the label from the node\n          var label = node.getLabel();\n\n          /*\n           * set the label back into the node so that the rectangle\n           * around the text label is resized to the text\n           */\n          node.setLabel(label);\n        }\n      }\n    }\n\n    if (links != null) {\n\n      // loop throgh all the links\n      for (var l = 0; l < links.length; l++) {\n        var link = links[l];\n\n        if (link != null) {\n          // get the label from the link\n          var label = link.getLabel();\n\n          /*\n           * set the label back into the link so that the rectangle\n           * around the text label is resized to the text\n           */\n          link.setLabel(label);\n        }\n      }\n    }\n  }\n\n  /**\n   * Get a node by id.\n   * @param id the node id\n   * @returns the node with the given id or null\n   */\n  getNodeById(nodes, id) {\n    var node = null;\n\n    if (id != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < nodes.length; n++) {\n        var tempNode = nodes[n];\n        var tempNodeId = tempNode.getId();\n\n        if (id == tempNodeId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Create an image from the concept map data\n   * @param conceptMapData concept map data from a student\n   * @param width the width of the image we want to create\n   * @param height the height of the image we want to create\n   */\n  createImage(conceptMapData, width, height) {\n\n    // create a promise that will return an image of the concept map\n    var deferred = this.$q.defer();\n\n    // create a div to draw the SVG in\n    var svgElement = document.createElement('div');\n\n    if (width == null || width == '') {\n      // we will default to a width of 800 pixels\n      width = 800;\n    }\n\n    if (height == null || height == '') {\n      // we will default to a height of 600 pixels\n      height = 600;\n    }\n\n    var draw = SVG(svgElement);\n    draw.width(width);\n    draw.height(height);\n\n    if (svgElement != null) {\n\n      // populate the concept map data into the svg draw element\n      this.populateConceptMapData(draw, conceptMapData);\n\n      // get the svg element as a string\n      var svgString = svgElement.innerHTML;\n\n      // find all the images in the svg and replace them with Base64 images\n      this.getHrefToBase64ImageReplacements(svgString, true).then((images) => {\n\n        /*\n         * Loop through all the image objects. Each object contains\n         * an image href and a Base64 image.\n         */\n        for (var i = 0; i < images.length; i++) {\n\n          // get an image object\n          var imagePair = images[i];\n\n          // get the image href e.g. /wise/curriculum/25/assets/Sun.png\n          var imageHref = imagePair.imageHref;\n\n          // get the last index of '/'\n          var lastIndexOfSlash = imageHref.lastIndexOf('/');\n\n          if (lastIndexOfSlash != -1) {\n            // only get everything after the last '/'\n            imageHref = imageHref.substring(lastIndexOfSlash + 1);\n          }\n\n          // get the Base64 image\n          var base64Image = imagePair.base64Image;\n\n          // create a regex to match the image href\n          var imageRegEx = new RegExp(imageHref, 'g');\n\n          /*\n           * replace all the instances of the image href with the\n           * Base64 image\n           */\n          svgString = svgString.replace(imageRegEx, base64Image);\n        }\n\n        // create a canvas to draw the image on\n        var myCanvas = document.createElement('canvas');\n        var ctx = myCanvas.getContext('2d');\n\n        // create an svg blob\n        var svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n        var domURL = self.URL || self.webkitURL || self;\n        var url = domURL.createObjectURL(svg);\n        var image = new Image;\n\n        /*\n         * set the UtilService in a local variable so we can access it\n         * in the onload callback function\n         */\n        var thisUtilService = this.UtilService;\n\n        // the function that is called after the image is fully loaded\n        image.onload = (event) => {\n\n          // get the image that was loaded\n          var image = event.target;\n\n          // set the dimensions of the canvas\n          myCanvas.width = image.width;\n          myCanvas.height = image.height;\n          ctx.drawImage(image, 0, 0);\n\n          // get the canvas as a Base64 string\n          var base64Image = myCanvas.toDataURL('image/png');\n\n          // get the image object\n          var imageObject = thisUtilService.getImageObjectFromBase64String(base64Image);\n\n          // create a student asset image\n          this.StudentAssetService.uploadAsset(imageObject).then((unreferencedAsset) => {\n\n            /*\n             * make a copy of the unreferenced asset so that we\n             * get a referenced asset\n             */\n            this.StudentAssetService.copyAssetForReference(unreferencedAsset).then((referencedAsset) => {\n              if (referencedAsset != null) {\n                /*\n                 * get the asset url\n                 * for example\n                 * /wise/studentuploads/11261/297478/referenced/picture_1494016652542.png\n                 */\n                var referencedAssetUrl = referencedAsset.url;\n\n                // remove the unreferenced asset\n                this.StudentAssetService.deleteAsset(unreferencedAsset);\n\n                // resolve the promise with the image url\n                deferred.resolve(referencedAssetUrl);\n              }\n            });\n          });\n        };\n\n        // set the src of the image so that the image gets loaded\n        image.src = url;\n      });\n    }\n\n    return deferred.promise;\n  }\n\n  /**\n   * Get Base64 images from image hrefs\n   * @param svgString the svg string\n   * @param prependAssetsPath whether to prepend the assets directory path\n   * to the image references\n   * @return a promise that will return an array of objects. The objects will\n   * contain an image href and a Base64 image.\n   */\n  getHrefToBase64ImageReplacements(svgString, prependAssetsPath) {\n\n    // an array to hold all the promises\n    var promises = [];\n\n    // get all the image hrefs\n    var imageHrefs = this.getImagesInSVG(svgString);\n\n    // loop through all the images\n    for (var i = 0; i < imageHrefs.length; i++) {\n\n      // get an image href\n      var imageHref = imageHrefs[i];\n\n      if (prependAssetsPath) {\n        /*\n         * the image href is relative so we need to make it absolute\n         * so that the browser can retrieve it\n         */\n\n        // prepend the project asset directory path\n        imageHref = this.ConfigService.getProjectAssetsDirectoryPath(true) + '/' + imageHref;\n      }\n\n      // get the Base64 of the image\n      var promise = this.getBase64Image(imageHref);\n\n      promises.push(promise);\n    }\n\n    return this.$q.all(promises);\n  }\n\n  /**\n   * Get all the image hrefs in the svg string\n   * @param svgString the svg string\n   * @return an array of image hrefs\n   */\n  getImagesInSVG(svgString) {\n\n    // used to hold all the images we find\n    var images = [];\n\n    if (svgString != null) {\n\n      /*\n       * the regex to match href values in image elements\n       * e.g.\n       * if the svg contained in image element like this\n       * <image id=\"SvgjsImage1007\" xlink:href=\"/wise/curriculum/25/assets/Sun.png\" width=\"100\" height=\"100\"/>\n       * it would match it and the matching group would contain\n       * /wise/curriculum/25/assets/Sun.png\n       */\n      var regex = /<image.*?xlink:href=\"(.*?)\".*?\\/?>/g;\n\n      // find the first match in the svg string\n      var result = regex.exec(svgString);\n\n      while(result != null) {\n\n        /*\n         * get the href image from the match\n         * e.g.\n         * /wise/curriculum/25/assets/Sun.png\n         */\n        var imageHref = result[1];\n\n        // add the href to our array of hrefs\n        images.push(imageHref);\n\n        // try to find the next match\n        result = regex.exec(svgString);\n      }\n    }\n\n    return images;\n  }\n\n  /**\n   * Get the Base64 image from an image href. An image href will look like\n   * /wise/curriculum/25/assets/Sun.png\n   * @param imageHref the image href\n   * @return a promise that will return an object containing the image href\n   * and the Base64 image\n   */\n  getBase64Image(imageHref) {\n\n    var deferred = this.$q.defer();\n\n    // create the image object that we will load the image into\n    var image = new Image;\n\n    // create a new canvas to render the image in\n    var myCanvas = document.createElement('canvas');\n    var ctx = myCanvas.getContext('2d');\n\n    // the function that is called after the image is fully loaded\n    image.onload = function(event) {\n\n      // get the image that was loaded\n      var image = event.target;\n\n      // set the canvas dimensions to match the image\n      myCanvas.width = image.width;\n      myCanvas.height = image.height;\n\n      // draw the image in the canvas\n      ctx.drawImage(image, 0, 0);\n\n      // get the Base64 string of the canvas\n      var base64Image = myCanvas.toDataURL('image/png');\n\n      // create an object that will contain the image href and Base64 image\n      var result = {};\n      result.imageHref = imageHref;\n      result.base64Image = base64Image;\n\n      // resolve the promise with the object\n      deferred.resolve(result);\n    }\n\n    // load the image\n    image.src = imageHref;\n\n    // return the promise\n    return deferred.promise;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        let nodes = [];\n        let links = [];\n        let conceptMapData = studentData.conceptMapData;\n\n        if (conceptMapData != null) {\n          if (conceptMapData.nodes != null) {\n            nodes = conceptMapData.nodes;\n          }\n\n          if (conceptMapData.links != null) {\n            links = conceptMapData.links;\n          }\n        }\n\n        if (componentContent == null) {\n          // the component content was not provided\n\n          if (nodes.length > 0) {\n            // the student has created a node\n            return true;\n          }\n\n          if (links.length > 0) {\n            // the student has created a link\n            return true;\n          }\n        } else {\n          // the component content was provided\n\n          let starterConceptMap = componentContent.starterConceptMap;\n\n          if (starterConceptMap == null || starterConceptMap === '') {\n            // there is no starter concept map\n\n            if (nodes.length > 0) {\n              // the student has created a node\n              return true;\n            }\n\n            if (links.length > 0) {\n              // the student has created a link\n              return true;\n            }\n          } else {\n            /*\n             * there is a starter concept map so we will compare it\n             * with the student concept map\n             */\n            if (this.isStudentConceptMapDifferentThanStarterConceptMap(conceptMapData, starterConceptMap)) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if the student concept map is different than the starter conept map\n   * @param studentConceptMap the student concept map\n   * @param starterConceptMap the authored starter concept map\n   * @return whether the student concept map is different than the starter\n   * concept map\n   */\n  isStudentConceptMapDifferentThanStarterConceptMap(studentConceptMap, starterConceptMap) {\n\n    if (studentConceptMap != null && starterConceptMap != null) {\n\n      let studentNodes = studentConceptMap.nodes;\n      let studentLinks = studentConceptMap.links;\n\n      let starterNodes = starterConceptMap.nodes;\n      let starterLinks = starterConceptMap.links;\n\n      if (studentNodes.length == starterNodes.length) {\n        /*\n         * the student has the same number of nodes as the starter so\n         * we will need to check if the nodes area actually different\n         */\n\n        // loop through all the nodes\n        for (let n = 0; n < studentNodes.length; n++) {\n          let studentNode = studentNodes[n];\n          let starterNode = starterNodes[n];\n\n          if (studentNode != null && starterNode != null) {\n\n            // check if any of the fields have different values\n            if (studentNode.originalId != starterNode.originalId ||\n              studentNode.instanceId != starterNode.instanceId ||\n              studentNode.x != starterNode.x ||\n              studentNode.y != starterNode.y) {\n\n              // the student node is different than the starter node\n              return true;\n            }\n          }\n        }\n      } else {\n        // the student has a different number of nodes\n        return true;\n      }\n\n      if (studentLinks.length == starterLinks.length) {\n        /*\n         * the student has the same number of links as the starter so\n         * we will need to check if the links area actually different\n         */\n\n        // loop through all the links\n        for (let l = 0; l < studentLinks.length; l++) {\n          let studentLink = studentLinks[l];\n          let starterLink = starterLinks[l];\n\n          if (studentLink != null && starterLink != null) {\n\n            // check if any of the fields have different values\n            if (studentLink.label != starterLink.label ||\n              studentLink.originalId != starterLink.originalId ||\n              studentLink.instanceId != starterLink.instanceId ||\n              studentLink.sourceNodeOriginalId != starterLink.sourceNodeOriginalId ||\n              studentLink.sourceNodeInstanceId != starterLink.sourceNodeInstanceId ||\n              studentLink.destinationNodeOriginalId != starterLink.destinationNodeOriginalId ||\n              studentLink.destinationNodeInstanceId != starterLink.destinationNodeInstanceId) {\n\n              // the student link is different than the starter link\n              return true;\n            }\n          }\n        }\n      } else {\n        // the student has a different number of links\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n\n    // get the svg element. this will obtain an array.\n    let svgElement = angular.element('#svg_' + componentState.nodeId + '_' + componentState.componentId);\n\n    if (svgElement != null && svgElement.length > 0) {\n      // get the svg element\n      svgElement = svgElement[0];\n\n      // get the svg element as a string\n      let serializer = new XMLSerializer();\n      let svgString = serializer.serializeToString(svgElement);\n\n      // find all the images in the svg and replace them with Base64 images\n      this.getHrefToBase64ImageReplacements(svgString).then((images) => {\n\n        /*\n         * Loop through all the image objects. Each object contains\n         * an image href and a Base64 image.\n         */\n        for (let i = 0; i < images.length; i++) {\n\n          // get an image object\n          let imagePair = images[i];\n\n          // get the image href e.g. /wise/curriculum/25/assets/Sun.png\n          let imageHref = imagePair.imageHref;\n\n          // get the Base64 image\n          let base64Image = imagePair.base64Image;\n\n          // create a regex to match the image href\n          let imageRegEx = new RegExp(imageHref, 'g');\n\n          /*\n           * replace all the instances of the image href with the\n           * Base64 image\n           */\n          svgString = svgString.replace(imageRegEx, base64Image);\n        }\n\n        // create a canvas to draw the image on\n        let myCanvas = document.createElement('canvas');\n        let ctx = myCanvas.getContext('2d');\n\n        // create an svg blob\n        let svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n        let domURL = self.URL || self.webkitURL || self;\n        let url = domURL.createObjectURL(svg);\n        let image = new Image();\n\n        // the function that is called after the image is fully loaded\n        image.onload = (event) => {\n\n          // get the image that was loaded\n          let image = event.target;\n\n          // set the dimensions of the canvas\n          myCanvas.width = image.width;\n          myCanvas.height = image.height;\n          ctx.drawImage(image, 0, 0);\n\n          // get the canvas as a Base64 string\n          let base64Image = myCanvas.toDataURL('image/png');\n\n          // get the image object\n          let imageObject = this.UtilService.getImageObjectFromBase64String(base64Image, false);\n\n          // add the image to the student assets\n          this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n            deferred.resolve(asset);\n          });\n        };\n\n        // set the src of the image so that the image gets loaded\n        image.src = url;\n      });\n    }\n    return deferred.promise;\n  }\n\n  // end of ConceptMapService class\n}\n\n\n/**\n * A ConceptMapNode that represents a node in the ConceptMap component\n */\nclass ConceptMapNode {\n\n  /**\n   * The constructor for creating ConceptMapNodes\n   * @param ConceptMapService the ConceptMapService\n   * @param draw the svg.js draw object\n   * @param filePath the path of the image file that represents the node\n   * @param label the label of the node\n   * @param x the x position of the node\n   * @param y the y position of the node\n   * @param width the the width of the node\n   * @param height the height of the node\n   */\n  constructor(ConceptMapService, draw, id, originalId, filePath, label, x, y, width, height) {\n\n    // remember the ConceptMapService\n    this.ConceptMapService = ConceptMapService;\n\n    // remember the svg.js draw object so we can draw onto it\n    this.draw = draw;\n\n    // set the id\n    this.id = id;\n\n    // set the original id\n    this.originalId = originalId;\n\n    // remember the file path e.g. \"/wise/curriculum/108/assets/Space.png\"\n    this.filePath = filePath;\n\n    if (this.filePath != null) {\n      // get the file name e.g. \"Space.png\"\n      this.fileName = this.filePath.substring(this.filePath.lastIndexOf('/') + 1);\n    }\n\n    // remember the label\n    this.label = label;\n\n    // create the svg image object\n    this.image = this.draw.image(this.filePath, width, height);\n\n    // remember the width\n    this.width = width;\n\n    // remember the height\n    this.height = height;\n\n    // create a group to contain all the elements of this node\n    this.group = this.draw.group();\n\n    // flag that specifies whether this node is highlighted by the student\n    this.highlighted = false;\n\n    // the color of the delete button\n    this.deleteButtonColor = 'gray';\n\n    // create the connector that students will use to create links\n    this.connector = this.createConnector();\n\n    // create the delete button\n    this.deleteButtonGroup = this.createDeleteButtonGroup();\n\n    // create the text group\n    this.textGroup = this.createTextGroup();\n\n    /*\n     * create the border that displays when the node is highighted or\n     * moused over\n     */\n    this.border = this.createBorder();\n\n    // remember the x and y coordinates\n    this.x = x;\n    this.y = y;\n\n    // initialize the outgoing and incoming links arrays\n    this.outgoingLinks = [];\n    this.incomingLinks = [];\n\n    // add all the elements to the group\n    this.group.add(this.border);\n    this.group.add(this.image);\n    this.group.add(this.connector);\n    this.group.add(this.deleteButtonGroup);\n    this.group.add(this.textGroup);\n\n    // hide the border and delete button\n    this.border.hide();\n    this.deleteButtonGroup.hide();\n\n    // set the position of the group\n    this.group.x(x);\n    this.group.y(y);\n  }\n\n  /**\n   * Get the JSON object representation of the ConceptMapNode\n   * @returns a JSON object containing the data of the ConceptMapNode\n   */\n  toJSONObject() {\n    var jsonObject = {};\n\n    jsonObject.originalId = this.originalId;\n    jsonObject.instanceId = this.id;\n    jsonObject.fileName = this.fileName;\n    jsonObject.filePath = this.filePath;\n    jsonObject.label = this.label;\n    jsonObject.x = this.x;\n    jsonObject.y = this.y;\n    jsonObject.width = this.width;\n    jsonObject.height = this.height;\n\n    jsonObject.outgoingLinks = [];\n    jsonObject.incomingLinks = [];\n\n    // loop through all the outgoing links\n    for (var ol = 0; ol < this.outgoingLinks.length; ol++) {\n      var outgoingLink = this.outgoingLinks[ol];\n\n      var instanceId = outgoingLink.getId();\n      var originalId = outgoingLink.getOriginalId();\n      var label = outgoingLink.getLabel();\n\n      /*\n       * create an object containing the instance id, original id\n       * and label of the link\n       */\n      var tempLinkObject = {};\n      tempLinkObject.originalId = originalId;\n      tempLinkObject.instanceId = instanceId;\n      tempLinkObject.label = label;\n\n      jsonObject.outgoingLinks.push(tempLinkObject);\n    }\n\n    // loop through all the incoming links\n    for (var il = 0; il < this.incomingLinks.length; il++) {\n      var incomingLink = this.incomingLinks[il];\n\n      var instanceId = incomingLink.getId();\n      var originalId = incomingLink.getOriginalId();\n      var label = incomingLink.getLabel();\n\n      /*\n       * create an object containing the instance id, original id\n       * and label of the link\n       */\n      var tempLinkObject = {};\n      tempLinkObject.originalId = originalId;\n      tempLinkObject.instanceId = instanceId;\n      tempLinkObject.label = label;\n\n      jsonObject.incomingLinks.push(tempLinkObject);\n    }\n\n    return jsonObject;\n  }\n\n  /**\n   * Create the border that displays when the node is highlighted or\n   * moused over.\n   * @returns the svg rectangle that represents the border\n   */\n  createBorder() {\n\n    // create the rectangle\n    this.border = this.draw.rect(this.width, this.height);\n    this.border.fill('none');\n    this.border.stroke({ color: '#333333', opacity: 0.2, width: 2 });\n\n    return this.border;\n  }\n\n  /**\n   * Create the connector that students will use to create links from this\n   * node.\n   * @returns the svg circle that represents the connector\n   */\n  createConnector() {\n\n    // create the circle\n    var connectorRadius = 10;\n    this.connector = this.draw.circle();\n    this.connector.radius(connectorRadius);\n    this.connector.cx(this.width / 2);\n    this.connector.cy(0);\n    this.connector.fill({ color: '#cccccc', opacity: 0.4 });\n    this.connector.stroke({ color: '#333333', opacity: 0.2 });\n\n    return this.connector;\n  }\n\n  /**\n   * Create the delete button. The delete button is a group that contains\n   * a circle and an x.\n   * @returns a group that contains a circle and an x\n   */\n  createDeleteButtonGroup() {\n\n    // create a group to contain the circle and x for the delete button\n    this.deleteButtonGroup = this.draw.group();\n\n    // create the delete button circle\n    var deleteButtonRadius = 10;\n    this.deleteButtonCircle = this.draw.circle();\n    this.deleteButtonCircle.radius(deleteButtonRadius);\n    this.deleteButtonCircle.cx(this.width);\n    this.deleteButtonCircle.cy(0);\n    this.deleteButtonCircle.fill({ opacity: 0.0 });\n    this.deleteButtonCircle.stroke({ color: '#333333', opacity: 0.2, width: 2 });\n\n    // create the x by first creating a + and then rotating it 45 degrees\n\n    // get the top location of the +\n    var topX = 0;\n    var topY = 0 - (deleteButtonRadius * 0.7);\n\n    // get the bottom location of the +\n    var bottomX = 0;\n    var bottomY = 0 + (deleteButtonRadius * 0.7);\n\n    // get the left position of the +\n    var leftX = 0 - (deleteButtonRadius * 0.7);\n    var leftY = 0;\n\n    // get the right position of the +\n    var rightX = 0 + (deleteButtonRadius * 0.7);\n    var rightY = 0;\n\n    // draw the +\n    var deleteButtonXPath = 'M' + topX + ',' + topY + 'L' + bottomX + ',' + bottomY + 'M' + leftX + ',' + leftY + 'L' + rightX + ',' + rightY;\n    this.deleteButtonX = this.draw.path(deleteButtonXPath);\n    this.deleteButtonX.stroke({ color: '#333333', opacity: 0.2, width: 2 });\n\n    // rotate the + to turn it into an x\n    this.deleteButtonX.transform({ rotation: 45 });\n\n    // move the x to the upper right of the group\n    this.deleteButtonX.translate(this.width, 0);\n\n    /*\n     * disable pointer events on the x so that clicks will pass through\n     * and hit the circle. this way we only need to set a listener on the\n     * circle for click events.\n     */\n    this.deleteButtonX.attr('pointer-events', 'none');\n\n    // add the circle and the x\n    this.deleteButtonGroup.add(this.deleteButtonCircle);\n    this.deleteButtonGroup.add(this.deleteButtonX);\n\n    return this.deleteButtonGroup;\n  }\n\n  /**\n   * Create the text group\n   * @returns the text group\n   */\n  createTextGroup() {\n\n    // create the group\n    this.textGroup = this.draw.group();\n\n    // create a rectangle to surround the text\n    this.textRect = this.draw.rect(100, 15);\n    this.textRect.attr('fill', 'white');\n    this.textRect.attr('stroke', 'black');\n    this.textRect.attr('x', 0);\n    this.textRect.attr('y', 10);\n    this.textRect.attr('width', 100);\n    this.textRect.attr('height', 20);\n    this.textRect.radius(5);\n\n    // create the text element\n    this.text = this.draw.text(this.label);\n    this.text.attr('x', 5);\n    //this.text.attr('x', 0);\n    this.text.attr('y', 9);\n    this.text.font({\n      family: 'Arial',\n      size: 12\n    });\n\n    // prevent the text from being highlighted when the user drags the mouse\n    this.text.style('user-select:none');\n    this.text.node.setAttribute('user-select', 'none');\n    this.text.node.setAttribute('style', 'user-select:none');\n\n    // add the rectangle and text to the group\n    this.textGroup.add(this.textRect);\n    this.textGroup.add(this.text);\n\n    // add the text group to the link group\n    this.group.add(this.textGroup);\n\n    var width = 0;\n\n    try {\n      // get the width of the bounding box of the text node\n      var textBBox = this.text.node.getBBox();\n\n      if (textBBox.width == 0) {\n        width = this.calculateTextRectWidth(this.label);\n      } else {\n        width = textBBox.width + 10;\n      }\n    } catch(e) {\n      /*\n       * we were unable to get the bounding box (likely because\n       * Firefox threw an error when trying to call getBBox())\n       * so we will calculate the width based on the label text\n       */\n      width = this.calculateTextRectWidth(this.label);\n    }\n\n    this.textRect.attr('width', width);\n\n    // set the position of the text group\n    var x = this.getImageWidth() / 2;\n    var y = this.getImageHeight();\n    this.textGroup.cx(x);\n    this.textGroup.cy(y);\n\n    return this.textGroup;\n  }\n\n  /**\n   * Get the id of the node\n   * @returns the id of the node\n   */\n  getId() {\n    return this.id;\n  }\n\n  /**\n   * Get the original id of the node\n   * @returns the original id of the node\n   */\n  getOriginalId() {\n    return this.originalId;\n  }\n\n  /**\n   * Get the group id of the node\n   * @returns the group id of the node\n   */\n  getGroupId() {\n    var groupId = null;\n\n    if (this.group != null) {\n      // get the id of the group which we will use as the id of the node\n      groupId = this.group.id();\n    }\n\n    return groupId;\n  }\n\n  /**\n   * Get the label\n   * @returns the label of the node\n   */\n  getLabel() {\n    return this.label;\n  }\n\n  /**\n   * Set the label of the node\n   * @param label the label of the node\n   */\n  setLabel(label) {\n\n    // remember the label\n    this.label = label;\n\n    // set the label into the text element\n    this.text.text(label);\n\n    var width = 0;\n\n    try {\n      // get the width of the bounding box of the text node\n      var textBBox = this.text.node.getBBox();\n\n      if (textBBox.width == 0) {\n        width = this.calculateTextRectWidth(this.label);\n      } else {\n        width = textBBox.width + 10;\n      }\n    } catch(e) {\n      /*\n       * we were unable to get the bounding box (likely because\n       * Firefox threw an error when trying to call getBBox())\n       * so we will calculate the width based on the label text\n       */\n      width = this.calculateTextRectWidth(this.label);\n    }\n\n    this.textRect.attr('width', width);\n\n    // set the position of the text group\n    var x = this.getImageWidth() / 2;\n    var y = this.getImageHeight();\n    this.textGroup.cx(x);\n    this.textGroup.cy(y);\n  }\n\n  /**\n   * Get the center x coordinate of the group\n   */\n  cx() {\n    var val = 0;\n\n    if (this.group != null && this.image != null) {\n\n      // get the group\n      var groupX = this.group.x();\n\n      /*\n       * get the center x coordinate of the image relative to the group.\n       * this will be equal to half the width of the image.\n       */\n      var imageCX = this.image.cx();\n\n      /*\n       * get the x coordinate of the center of the group relative to the\n       * svg parent\n       */\n      val = groupX + imageCX;\n    }\n\n    return val;\n  }\n\n  /**\n   * Get the center y coordinate of the group\n   */\n  cy() {\n    var val = 0;\n\n    if (this.group != null && this.image != null) {\n\n      // get the group\n      var groupY = this.group.y();\n\n      /*\n       * get the center y coordinate of the image relative to the group.\n       * this will be equal to half the height of the image.\n       */\n      var imageCY = this.image.cy();\n\n      /*\n       * get the y coordinate of the center of the group relative to the\n       * svg parent\n       */\n      val = groupY + imageCY;\n    }\n\n    return val;\n  }\n\n  /**\n   * Get the center x coordinate of the group\n   */\n  connectorCX() {\n    var val = 0;\n\n    if (this.group != null && this.image != null) {\n\n      // get the group\n      var groupX = this.group.x();\n\n      /*\n       * get the center x coordinate of the image relative to the group.\n       * this will be equal to half the width of the image.\n       */\n      var imageCX = this.connector.cx();\n\n      /*\n       * get the x coordinate of the center of the group relative to the\n       * svg parent\n       */\n      val = groupX + imageCX;\n    }\n\n    return val;\n  }\n\n  /**\n   * Get the center y coordinate of the group\n   */\n  connectorCY() {\n    var val = 0;\n\n    if (this.group != null && this.image != null) {\n\n      // get the group\n      var groupY = this.group.y();\n\n      /*\n       * get the center y coordinate of the image relative to the group.\n       * this will be equal to half the height of the image.\n       */\n      var imageCY = this.connector.cy();\n\n      /*\n       * get the y coordinate of the center of the group relative to the\n       * svg parent\n       */\n      val = groupY + imageCY;\n    }\n\n    return val;\n  }\n\n  /**\n   * Getter/setter for whether the node is highlighted\n   * @parm value (optional) boolean value that sets the highlighted value\n   * @returns whether the node is highlighted\n   */\n  isHighlighted(value) {\n\n    if (value != null) {\n      this.highlighted = value;\n    }\n\n    return this.highlighted;\n  }\n\n  /**\n   * Get the group\n   * @returns the group\n   */\n  getGroup() {\n    return this.group;\n  }\n\n  /**\n   * Show the delete button group\n   */\n  showDeleteButton() {\n    this.deleteButtonGroup.show();\n  }\n\n  /**\n   * Hide the delete button group\n   */\n  hideDeleteButton() {\n    this.deleteButtonGroup.hide();\n  }\n\n  /**\n   * Show the border of the node\n   */\n  showBorder() {\n    this.border.show();\n  }\n\n  /**\n   * Hide the border of the node\n   */\n  hideBorder() {\n    this.border.hide();\n  }\n\n  /**\n   * Get the connector of the node\n   */\n  getConnector() {\n    return this.connector;\n  }\n\n  /**\n   * Get the id of the connector\n   */\n  getConnectorId() {\n    var id = null;\n\n    if (this.connector != null) {\n      id = this.connector.id();\n    }\n\n    return id;\n  }\n\n  /**\n   * Get the x position of the group within the svg\n   * @returns the x position of the group\n   */\n  getGroupX() {\n\n    var x = 0;\n\n    if (this.group != null) {\n      /*\n       * the image is located at 0, 0 within the group so we will obtain\n       * the x location of the group\n       */\n      x = this.group.x();\n    }\n\n    return x;\n  }\n\n  /**\n   * Get the y position of the group within the svg\n   * @returns the y position of the group\n   */\n  getGroupY() {\n    var y = 0;\n\n    if (this.group != null) {\n      /*\n       * the image is located at 0, 0 within the group so we will obtain\n       * the y location of the group\n       */\n      y = this.group.y();\n    }\n\n    return y;\n  }\n\n  /**\n   * Get the x position of the image within the svg\n   * @returns the x position of the image\n   */\n  getImageX() {\n\n    // get the x position of the group\n    var groupX = this.getGroupX();\n\n    // get the x position of the image relative to the group\n    var imageRelativeX = this.image.x();\n\n    // add the values together to get the absolute x position of the image\n    var imageX = groupX + imageRelativeX;\n\n    // get the group\n    var group = this.getGroup();\n\n    // check if the group is shifted\n    if (group != null) {\n      // get the bounding box of the group\n      var bbox = group.bbox();\n\n      if (bbox != null) {\n        // get the x position of the bounding box on the group\n        var bboxX = bbox.x;\n\n        // compensate for the shift of the group\n        imageX = imageX - bboxX;\n      }\n    }\n\n    return imageX;\n  }\n\n  /**\n   * Get the y position of the image within the svg\n   * @returns the y position of the image\n   */\n  getImageY() {\n\n    // get the y position of the group\n    var groupY = this.getGroupY();\n\n    // get the y position of the image relative to the group\n    var imageRelativeY = this.image.y();\n\n    // add the values together to get the absolute y position of the image\n    var imageY = groupY + imageRelativeY;\n\n    // get the group\n    var group = this.getGroup();\n\n    // check if the group is shifted\n    if (group != null) {\n      // get the bounding box of the group\n      var bbox = group.bbox();\n\n      // get the y position of the bounding box on the group\n      var bboxY = bbox.y;\n\n      // compensate for the shift of the group\n      imageY = imageY - bboxY;\n    }\n\n    return imageY;\n  }\n\n  /**\n   * Get the width of the image\n   * @returns the width of th eimage\n   */\n  getImageWidth() {\n    var width = 0;\n\n    if (this.image != null) {\n      width = this.image.width();\n    }\n\n    return width\n  }\n\n  /**\n   * Get the height of the image\n   * @returns the height of the image\n   */\n  getImageHeight() {\n    var height = 0;\n\n    if (this.image != null) {\n      height = this.image.height();\n    }\n\n    return height;\n  }\n\n  /**\n   * Set the mouseover listener for the group\n   * @param nodeMouseOverFunction the function to call when the mouse is over\n   * the group\n   */\n  setNodeMouseOver(nodeMouseOverFunction) {\n\n    if (this.group != null) {\n      this.group.mouseover(nodeMouseOverFunction);\n    }\n  }\n\n  /**\n   * Set the mouseout listener for the group\n   * @param nodeMouseOutFunction the function to call when the mouse moves\n   * out of the group\n   */\n  setNodeMouseOut(nodeMouseOutFunction) {\n\n    if (this.group != null) {\n      this.group.mouseout(nodeMouseOutFunction);\n    }\n  }\n\n  /**\n   * Set the mousedown listener for the group\n   * @param nodeMouseDownFunction the function to call when the mouse is\n   * down on the group\n   */\n  setNodeMouseDown(nodeMouseDownFunction) {\n\n    if (this.group != null) {\n      this.group.mousedown(nodeMouseDownFunction);\n    }\n  }\n\n  /**\n   * Set the mouseup listener for the group\n   * @param nodeMouseUpFunction the function to call when the mouse is\n   * released over the group\n   */\n  setNodeMouseUp(nodeMouseUpFunction) {\n\n    if (this.group != null) {\n      this.group.mouseup(nodeMouseUpFunction);\n    }\n  }\n\n  /**\n   * Set the click listener for the image\n   * @param nodeMouseClickFunction the function to call when the image is\n   * clicked\n   */\n  setNodeMouseClick(nodeMouseClickFunction) {\n\n    if (this.group != null) {\n      this.image.click(nodeMouseClickFunction);\n    }\n  }\n\n  /**\n   * Set the mousedown listener for the connector\n   * @param connectorMouseDownFunction the function to call when the mouse\n   * is down on the connector\n   */\n  setConnectorMouseDown(connectorMouseDownFunction) {\n\n    if (this.connector != null) {\n      this.connector.mousedown(connectorMouseDownFunction);\n    }\n  }\n\n  /**\n   * Set the mousedown listener for the delete button\n   * @param deleteButtonMouseDownFunction the function to call when the mouse\n   * is down on the delete button\n   */\n  setDeleteButtonMouseDown(deleteButtonMouseDownFunction) {\n\n    if (this.deleteButtonCircle != null) {\n      this.deleteButtonCircle.mousedown(deleteButtonMouseDownFunction);\n    }\n  }\n\n  /**\n   * Set the mouseover listener for the delete button\n   * @param deleteButtonMouseOverFunction the function to call when the mouse\n   * is over the delete button\n   */\n  setDeleteButtonMouseOver(deleteButtonMouseOverFunction) {\n\n    if (this.deleteButtonCircle != null) {\n      this.deleteButtonCircle.mouseover(deleteButtonMouseOverFunction);\n    }\n  }\n\n  /**\n   * Set the mouseout listener for the delete button\n   * @param deleteButtonMouseOutFunction the function to call when the mouse\n   * moves out of the delete button\n   */\n  setDeleteButtonMouseOut(deleteButtonMouseOutFunction) {\n\n    if (this.deleteButtonCircle != null) {\n      this.deleteButtonCircle.mouseout(deleteButtonMouseOutFunction);\n    }\n  }\n\n  /**\n   * Set the dragmove listener for the group\n   * @param dragMoveFunction the function to call when the group is dragged\n   */\n  setDragMove(dragMoveFunction) {\n\n    if (this.group != null) {\n\n      // set a listener for when the node is dragged\n      this.group.on('dragmove', dragMoveFunction);\n    }\n  }\n\n  /**\n   * Set the x position\n   * @param x the x position\n   */\n  setX(x) {\n    this.x = x;\n    this.group.x(x);\n  }\n\n  /**\n   * Set the y position\n   * @param y the y position\n   */\n  setY(y) {\n    this.y = y;\n    this.group.y(y);\n  }\n\n  /**\n   * Add an outgoing link to the node\n   * @param outgoingLink a ConceptMapLink object\n   */\n  addOutgoingLink(outgoingLink) {\n    if (outgoingLink != null) {\n      this.outgoingLinks.push(outgoingLink);\n    }\n  }\n\n  /**\n   * Remove an outgoing link from the node\n   * @param outgoingLink a ConceptMapLink object\n   */\n  removeOutgoingLink(outgoingLink) {\n\n    if (outgoingLink != null) {\n\n      // loop through all the outgoing links in this node\n      for (var ol = 0; ol < this.outgoingLinks.length; ol++) {\n\n        // get an outgoing link\n        var tempOutgoingLink = this.outgoingLinks[ol];\n\n        if (outgoingLink == tempOutgoingLink) {\n          // we have found the outgoing link we want to remove\n          this.outgoingLinks.splice(ol, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the outgoing links\n   * @return the outgoing links\n   */\n  getOutgoingLinks() {\n    return this.outgoingLinks;\n  }\n\n  /**\n   * Add an incoming link to the node\n   * @param incomingLink a ConceptMapLink object\n   */\n  addIncomingLink(incomingLink) {\n    if (incomingLink != null) {\n      this.incomingLinks.push(incomingLink);\n    }\n  }\n\n  /**\n   * Remove an incoming link from the node\n   * @param incomingLink a ConceptMapLink object\n   */\n  removeIncomingLink(incomingLink) {\n\n    if (incomingLink != null) {\n\n      // loop through the incoming links in the node\n      for (var il = 0; il < this.incomingLinks.length; il++) {\n\n        // get an incoming link\n        var tempIncomingLink = this.incomingLinks[il];\n\n        if (incomingLink == tempIncomingLink) {\n          // we have found the incoming link we want to remove\n          this.incomingLinks.splice(il, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the incoming links\n   * @return the incoming links\n   */\n  getIncomingLinks() {\n    return this.incomingLinks;\n  }\n\n  /**\n   * The function that is called when the node is moved\n   * @param event\n   */\n  dragMove(event) {\n\n    // get the group\n    var group = this.getGroup();\n\n    // get the x and y coordinates of the center of the image\n    var cx = this.cx();\n    var cy = this.cy();\n\n    // update the local x, y values of the node for bookkeeping\n    this.x = group.x();\n    this.y = group.y();\n\n    // get the outgoing links and incoming links\n    var outgoingLinks = this.outgoingLinks;\n    var incomingLinks = this.incomingLinks;\n\n    if (outgoingLinks != null) {\n\n      // loop through all the outgoing links\n      for (var ol = 0; ol < outgoingLinks.length; ol++) {\n\n        // get an outgoing link\n        var outgoingLink = outgoingLinks[ol];\n\n        // update the x, y coordinate of the tail of the link\n        var x1 = cx;\n        var y1 = cy;\n\n        // calculate the nearest point to the destination node\n        var nearestPoint = outgoingLink.getNearestPointToDestinationNode(x1, y1);\n        x2 = nearestPoint.x;\n        y2 = nearestPoint.y;\n\n        // update the coordinates of the link\n        outgoingLink.updateCoordinates(x1, y1, x2, y2);\n      }\n\n      // loop through all the incoming links\n      for (var il = 0; il < incomingLinks.length; il++) {\n\n        // get an incoming link\n        var incomingLink = incomingLinks[il];\n\n        // reuse the coordinates of the tail of the link\n        var x1 = incomingLink.x1();\n        var y1 = incomingLink.y1();\n\n        // calculate the nearest point to the source node\n        var nearestPoint = incomingLink.getNearestPointToDestinationNode(x1, y1);\n        var x2 = nearestPoint.x;\n        var y2 = nearestPoint.y;\n\n        // update the coordinates of the link\n        incomingLink.updateCoordinates(x1, y1, x2, y2);\n      }\n    }\n\n    if (this.controller != null) {\n      // handle the student data changing\n      this.controller.studentDataChanged();\n    }\n\n    // move the group to the front so that it shows up above other elements\n    group.front();\n  }\n\n  /**\n   * Remove the node from the svg\n   */\n  remove() {\n\n    // make the group not draggable\n    this.group.draggable(false);\n\n    // remove the group\n    this.group.remove();\n\n    // remove the image\n    this.image.remove();\n\n    // remove the connector\n    this.connector.remove();\n\n    // remove the delete button\n    this.deleteButtonCircle.remove();\n    this.deleteButtonX.remove();\n    this.deleteButtonGroup.remove();\n\n    // loop through all the outgoing links\n    for (var ol = 0; ol < this.outgoingLinks.length; ol++) {\n\n      // get an outgoing link\n      var outgoingLink = this.outgoingLinks[ol];\n\n      if (outgoingLink != null) {\n        // remove the outgoing link\n        outgoingLink.remove();\n\n        /*\n         * move the counter back one because calling outgoingLink.remove()\n         * has removed the outgoingLink from the outgoingLinks array\n         */\n        ol--;\n      }\n    }\n\n    // loop through all the incoming links\n    for (var il = 0; il < this.incomingLinks.length; il++) {\n\n      // get an incoming link\n      var incomingLink = this.incomingLinks[il];\n\n      if (incomingLink != null) {\n        // remove the incoming link\n        incomingLink.remove();\n\n        /*\n         * move the counter back one because calling incomingLink.remove()\n         * has removed the incomingLink from the incomingLinks array\n         */\n        il--;\n      }\n    }\n  }\n\n  /**\n   * Get the links from this node to a given destination node\n   * @param destinationNode the destination node\n   */\n  getLinksToDestination(destinationNode) {\n\n    var linksToDestination = [];\n\n    // loop through all the outgoing links\n    for (var ol = 0; ol < this.outgoingLinks.length; ol++) {\n\n      // get an outgoing link\n      var outgoingLink = this.outgoingLinks[ol];\n\n      if (outgoingLink != null) {\n        if (destinationNode == outgoingLink.destinationNode) {\n          /*\n           * the destination of the link is the destination we are\n           * looking for\n           */\n          linksToDestination.push(outgoingLink);\n        }\n      }\n    }\n\n    return linksToDestination;\n  }\n\n  /**\n   * Calculate the width that the text rectangle should be set to\n   * @param labelText the label text that will be displayed in the rectangle\n   * @return the width that the text rectangle should be set to\n   */\n  calculateTextRectWidth(labelText) {\n    var width = 0;\n\n    if (labelText != null) {\n      width = (labelText.length * 6) + 10;\n    }\n\n    return width;\n  }\n\n  // end of ConceptMapNode class\n}\n\n/**\n * A ConceptMapLink that represents a link in the ConceptMap component\n */\nclass ConceptMapLink {\n\n  /**\n   * The constructor to create a ConceptMapLink object\n   * @param ConceptMapService the ConceptMapService\n   * @param draw the svg.js draw object\n   * @param id the instance id of the link\n   * @param originalId the original authored id of the link\n   * @param sourceNode the source ConceptMapNode\n   * @param destinationNode the destination ConceptMapNode\n   * @param label the text label\n   * @param color the color of the link\n   * @param curvature the curvature of the link\n   * @param startCurveUp whether the start of the link curves up\n   * @param endCurveUp whether the end of the link curves up\n   */\n  constructor(ConceptMapService, draw, id, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, endCurveUp) {\n\n    // remember the ConceptMapService\n    this.ConceptMapService = ConceptMapService;\n\n    // remember the svg.js draw object\n    this.draw = draw;\n\n    // set the id\n    this.id = id;\n\n    // set the original id\n    this.originalId = originalId;\n\n    // the arrow head of the link\n    this.head = null;\n\n    // the line of the link\n    this.path = null;\n\n    // set the color of the link\n    this.color = color;\n\n    if (this.color == null) {\n      // if no color is specified, use a default color\n      this.color = 'blue';\n    }\n\n    // whether the link is highlighted\n    this.highlighted = false;\n\n    // create a group to contain the path and head\n    this.group = this.draw.group();\n\n    // where to place the text of the link along the line\n    this.textPercentageLocationOnLink = 0.6\n\n    // remember the source node\n    this.sourceNode = sourceNode;\n\n    /*\n     * used to remember the destination node later after the destination\n     * node has been chosen\n     */\n    this.destinationNode = destinationNode;\n\n    // remember the curvature\n    this.curvature = curvature;\n\n    if (this.curvature == null) {\n      this.curvature = 0.5;\n    }\n\n    // set whether the link curves up or down\n    this.startCurveUp = startCurveUp;\n    this.endCurveUp = endCurveUp;\n\n    if (this.startCurveUp == null || this.endCurveUp == null) {\n      /*\n       * start and end curve up have not been specified so we will set\n       * it at random\n       */\n\n      // choose a random integer 0 or 1\n      var randInt = Math.floor(Math.random() * 2);\n\n      if (randInt == 0) {\n        // set the link to curve down\n        this.startCurveUp = false;\n        this.endCurveUp = false;\n      } else {\n        // set the link to curve up\n        this.startCurveUp = true;\n        this.endCurveUp = true;\n      }\n    }\n\n    // create a curved link\n    this.curvedLink = true;\n\n    // initialize the coordinates of both ends of the link\n    var x1 = this.sourceNode.cx();\n    var y1 = this.sourceNode.cy();\n    var x2 = x1;\n    var y2 = y1;\n\n    if (this.destinationNode != null) {\n\n      /*\n       * get the nearest point from the center of the source node to the\n       * destination node along the perimeter of the destination node\n       * image\n       */\n      var nearestPoint = this.getNearestPointToDestinationNode(x1, y1);\n      x2 = nearestPoint.x;\n      y2 = nearestPoint.y;\n\n      // connect the link to the nodes\n      this.connectLinkToNodes();\n    }\n\n    if (this.curvedLink) {\n      // create a curved link\n\n      // calculate the curved line in svg\n      var arrowPathArraysObject = this.calculateCurvedLine(x1, y1, x2, y2);\n\n      // get the line\n      var tail = arrowPathArraysObject[0];\n\n      // get the arrow head\n      var head = arrowPathArraysObject[1];\n\n      // draw the head and tail\n      this.head = this.draw.path(head.toString());\n      this.path = this.draw.path(tail.toString());\n    } else {\n      // create a straight line\n      this.path = this.draw.path('M' + x1 + ',' + y1 + ' L' + x2 + ',' + y2);\n    }\n\n    // set the style of the link\n    this.path.attr('stroke', this.color);\n    this.path.attr('stroke-width', 3);\n    this.path.attr('fill', 'transparent');\n    this.head.attr('stroke', this.color);\n    this.head.attr('fill', this.color);\n    this.head.attr('pointer-events', 'none');\n\n    /*\n     * remember the x and y coordinates of the source and destination\n     * so that we can look them up easily later\n     */\n    this.path.attr('x1', x1);\n    this.path.attr('y1', y1);\n    this.path.attr('x2', x2);\n    this.path.attr('y2', y2);\n\n    // add the tail and head to the group\n    this.group.add(this.path);\n    this.group.add(this.head);\n\n    // create the text group for the link\n    this.createTextGroup();\n\n    // text that describes the type of link chosen by the student\n    this.setLabel(label);\n\n    if (this.label == null || this.label == '') {\n      // there is no label so we will hide the text group\n      this.hideTextGroup();\n    } else {\n      // there is a label so we will show the text group\n      this.showTextGroup();\n    }\n\n    // create the delete button group\n    this.createDeleteButtonGroup();\n  }\n\n  /**\n   * Get the JSON object representation of the ConceptMapLink\n   * @returns a JSON object containing the data of the ConceptMapLink\n   */\n  toJSONObject() {\n    var jsonObject = {};\n\n    jsonObject.originalId = this.originalId;\n    jsonObject.instanceId = this.id;\n    jsonObject.color = this.color;\n    jsonObject.label = this.label;\n    jsonObject.curvature = this.curvature;\n    jsonObject.startCurveUp = this.startCurveUp;\n    jsonObject.endCurveUp = this.endCurveUp;\n    jsonObject.sourceNodeOriginalId = this.sourceNode.getOriginalId();\n    jsonObject.sourceNodeInstanceId = this.sourceNode.getId();\n    jsonObject.sourceNodeLabel = this.sourceNode.getLabel();\n    jsonObject.destinationNodeOriginalId = this.destinationNode.getOriginalId();\n    jsonObject.destinationNodeInstanceId = this.destinationNode.getId();\n    jsonObject.destinationNodeLabel = this.destinationNode.getLabel();\n\n    return jsonObject;\n  }\n\n  /**\n   * Get the id of the link\n   * @returns the id of the link\n   */\n  getId() {\n    return this.id;\n  }\n\n  /**\n   * Get the original id of the node\n   * @returns the original id of the node\n   */\n  getOriginalId() {\n    return this.originalId;\n  }\n\n  /**\n   * Get the id of the group\n   * @returns the id of the group\n   */\n  getGroupId() {\n    return this.group.id();\n  }\n\n  /**\n   * Get the x1 value\n   * @returns the x coordinate of the source of the link\n   */\n  x1() {\n    return this.path.attr('x1');\n  }\n\n  /**\n   * Get the y1 value\n   * @returns the y coordinate of the source of the link\n   */\n  y1() {\n    return this.path.attr('y1');\n  }\n\n  /**\n   * Get the x2 value\n   * @returns the x coordinate of the destination of the link\n   */\n  x2() {\n    return this.path.attr('x2');\n  }\n\n  /**\n   * Get the y2 value\n   * @returns the y coordinate of the destination of the link\n   */\n  y2() {\n    return this.path.attr('y2');\n  }\n\n  /**\n   * Set the original id\n   * @param originalId the original id\n   */\n  setOriginalId(originalId) {\n    this.originalId = originalId;\n  }\n\n  /**\n   * Get the label\n   * @returns the label\n   */\n  getLabel() {\n    return this.label;\n  }\n\n  /**\n   * Getter/setter for the highlighted value\n   * @param value (optional) the highlighted value\n   * @returns whether the link is highlighted\n   */\n  isHighlighted(value) {\n\n    if (value != null) {\n      this.highlighted = value;\n    }\n\n    return this.highlighted;\n  }\n\n  /**\n   * Update the coordinates of the link\n   * @param x1 (optional) the x position of the source\n   * @param y1 (optional) the y position of the source\n   * @param x2 (optional) the x position of the destination\n   * @param y2 (optional) the y position of the destination\n   * @param isDragging whether the link is currently being dragged\n   */\n  updateCoordinates(x1, y1, x2, y2, isDragging) {\n    var array = this.path.array();\n\n    if (this.curvedLink) {\n      // draw a curved link\n\n      if (x1 == null) {\n        /*\n         * the x1 parameter was not provided so we will reuse the\n         * existing value\n         */\n        x1 = this.path.attr('x1');\n      }\n\n      if (y1 == null) {\n        /*\n         * the y1 parameter was not provided so we will reuse the\n         * existing value\n         */\n        y1 = this.path.attr('y1');\n      }\n\n      if (x2 == null) {\n        /*\n         * the x2 parameter was not provided so we will reuse the\n         * existing value\n         */\n        x2 = this.path.attr('x2');\n      }\n\n      if (y2 == null) {\n        /*\n         * the y2 parameter was not provided so we will reuse the\n         * existing value\n         */\n        y2 = this.path.attr('y2');\n      }\n\n      // calculate the line\n      var arrowPathArraysObject = this.calculateCurvedLine(x1, y1, x2, y2, isDragging);\n\n      // get the svg tail\n      var tail = arrowPathArraysObject[0];\n\n      // get the svg head\n      var head = arrowPathArraysObject[1];\n\n      // re-plot the head and path\n      this.head.plot(head.toString());\n      this.path.plot(tail.toString());\n    } else {\n      // draw a straight line\n\n      if (x1 == null) {\n        /*\n         * the x1 parameter was not provided so we will reuse the\n         * existing value\n         */\n        x1 = this.path.attr('x1');\n      }\n\n      if (y1 == null) {\n        /*\n         * the y1 parameter was not provided so we will reuse the\n         * existing value\n         */\n        y1 = this.path.attr('y1');\n      }\n\n      if (x2 == null) {\n        /*\n         * the x2 parameter was not provided so we will reuse the\n         * existing value\n         */\n        x2 = this.path.attr('x2');\n      }\n\n      if (y2 == null) {\n        /*\n         * the y2 parameter was not provided so we will reuse the\n         * existing value\n         */\n        y2 = this.path.attr('y2');\n      }\n\n      // re-plot the line\n      this.path.plot('M' + x1 + ',' + y1 + ' L' + x2 + ',' + y2);\n    }\n\n    // update the coordinate values\n    this.path.attr('x1', x1);\n    this.path.attr('y1', y1);\n    this.path.attr('x2', x2);\n    this.path.attr('y2', y2);\n\n    if (this.deleteButtonGroup != null) {\n      // update the location of the delete button\n      var deleteButtonLocation = this.getDeleteButtonLocation();\n      this.deleteButtonGroup.x(deleteButtonLocation.x);\n      this.deleteButtonGroup.y(deleteButtonLocation.y);\n    }\n\n    if (this.textGroup != null) {\n      // update the location of the text group\n\n      // get the length of the line\n      var totalLength = this.path.node.getTotalLength();\n\n      // get the coordinate of a point somewhere in the middel of the line\n      var midPoint = this.path.node.getPointAtLength(totalLength * this.textPercentageLocationOnLink);\n\n      this.textGroup.cx(midPoint.x);\n      this.textGroup.cy(midPoint.y);\n    }\n  }\n\n  /**\n   * Calculate the curved line\n   * @param x1 the x coordinate of the source\n   * @param y1 the y coordinate of the source\n   * @param x2 the x coordinate of the destination\n   * @param y2 the y coordinate of the destination\n   * @param isDragging whether the line is currently being dragged\n   * @returns an array that contains the svg objects for the arrow head and line\n   */\n  calculateCurvedLine(x1, y1, x2, y2, isDragging) {\n\n    var startx = x1;\n    var starty = y1;\n    var endx = x2;\n    var endy = y2;\n    var startCurveUp = true;\n    var endCurveUp = true;\n    var len = 15;\n    var angle = 45;\n    var curvature = 0.5;\n    var nodeRadius = 10;\n\n    // set the amount of curvature of the line\n    curvature = this.curvature;\n\n    // whether the link should curve up or down\n    startCurveUp = this.startCurveUp;\n    endCurveUp = this.endCurveUp;\n\n    // calculate the svg objects for the arrow head and line\n    var arrowPathArraysObject = this.ConceptMapService.arrowPathArrays(startx,starty,endx,endy,startCurveUp,endCurveUp,len,angle,curvature,nodeRadius);\n\n    return arrowPathArraysObject;\n  }\n\n  /**\n   * Set the destination node\n   * @param destinationNode the destination ConceptMapNode object\n   */\n  setDestination(destinationNode) {\n\n    if (destinationNode != null) {\n\n      // get x and y of the tail\n      var x1 = this.path.attr('x1');\n      var y1 = this.path.attr('y1');\n\n      // remember the destination node\n      this.destinationNode = destinationNode;\n\n      /*\n       * check if there are any links with that have the same source,\n       * destination, and direction. if there is a link that has the\n       * same source, destination, and direction, we will try to use\n       * a different direction that hasn't already been used. if all\n       * directions have already been used, we will use the original\n       * direction the user specified. there are three link directions,\n       * up, straight, and down.\n       *    ___\n       * up  /   \\\n       *  o  o\n       *\n       * straight o------o\n       *\n       *    o   o\n       * down \\__/\n       */\n\n      var directionAlreadyUsed = false;\n      var direction = '';\n\n      if (this.curvature == 0) {\n        // the user has created the curve to be straight\n        direction = 'straight';\n      } else if (this.startCurveUp && this.endCurveUp) {\n        // the user has created the curve that starts by pointing up\n        direction = 'up';\n      } else if (!this.startCurveUp && !this.endCurveUp) {\n        // the user has created the curve that starts by pointing down\n        direction = 'down';\n      }\n\n      // get all the links that have the same source and destination\n      var parallelLinks = this.sourceNode.getLinksToDestination(destinationNode);\n\n      var usedDirections = [];\n\n      // loop through all the links that have the same source and destination\n      for (var p = 0; p < parallelLinks.length; p++) {\n        var parallelLink = parallelLinks[p];\n\n        if (parallelLink != null) {\n\n          var curvature = parallelLink.curvature;\n          var startCurveUp = parallelLink.startCurveUp;\n          var endCurveUp = parallelLink.endCurveUp;\n\n          var tempDirection = '';\n\n          if (curvature == 0) {\n            // the other link is straight\n            tempDirection = 'straight';\n          } else if (startCurveUp && endCurveUp) {\n            // the other link points up\n            tempDirection = 'up';\n          } else if (!startCurveUp && !endCurveUp) {\n            // the other link points down\n            tempDirection = 'down'\n          }\n\n          if (direction == tempDirection) {\n            /*\n             * the direction is the same as the direction the user\n             * has specified\n             */\n            directionAlreadyUsed = true;\n          }\n\n          // keep track of the directions that were used\n          usedDirections.push(tempDirection);\n        }\n      }\n\n      if (directionAlreadyUsed) {\n        /*\n         * the direction the user specified is already used so we will\n         * try to find a direction that hasn't been used\n         */\n\n        if (usedDirections.indexOf('up') == -1) {\n          /*\n           * we have not used the up direction yet so we will make\n           * the link point up\n           */\n          this.curvature = 0.5;\n          this.startCurveUp = true;\n          this.endCurveUp = true;\n        } else if (usedDirections.indexOf('straight') == -1) {\n          /*\n           * we have not used the straight direction yet so we will\n           * make the link point straight\n           */\n          this.curvature = 0.0;\n          this.startCurveUp = true;\n          this.endCurveUp = true;\n        } else if (usedDirections.indexOf('down') == -1) {\n          /*\n           * we have not used the down direction yet so we will make\n           * the link point down\n           */\n          this.curvature = 0.5;\n          this.startCurveUp = false;\n          this.endCurveUp = false;\n        }\n      }\n\n      /*\n       * get the nearest point from the center of the source node to the\n       * destination node along the perimeter of the destination node\n       * image\n       */\n      var nearestPoint = this.getNearestPointToDestinationNode(x1, y1);\n      var x2 = nearestPoint.x;\n      var y2 = nearestPoint.y;\n\n      // update the coordinates of the link\n      var isDragging = false;\n      this.updateCoordinates(x1, y1, x2, y2, isDragging);\n\n      // connect the link to the nodes\n      this.connectLinkToNodes();\n\n      // hide the delete button\n      this.hideDeleteButton();\n    }\n  }\n\n  /**\n   * Get the nearest point to the destination node from a given x, y point\n   * @param x the x value of the source point\n   * @param y the y value of the source point\n   * @returns an object containing an x and y field\n   */\n  getNearestPointToDestinationNode(x, y) {\n\n    // get the coordinates of the upper left corner of the image\n    var rectMinX = this.destinationNode.getImageX();\n    var rectMinY = this.destinationNode.getImageY();\n\n    /*\n     * add padding of 25 pixels to resolve the problem of the arrow head\n     * being placed behind the destination image\n     */\n    rectMinY = rectMinY - 25;\n\n    // get the width and height of the image\n    var width = this.destinationNode.getImageWidth();\n    var height = this.destinationNode.getImageHeight();\n\n    // compensate for the 25 pixel padding that we added above\n    height = height + 25;\n\n    /*\n    var destinationNodeGroup = this.destinationNode.getGroup();\n    var destinationNodeGroupBBox = destinationNodeGroup.bbox();\n\n    rectMinX = this.destinationNode.getGroupX();\n    rectMinY = this.destinationNode.getGroupY();\n\n    width = destinationNodeGroupBBox.width;\n    height = destinationNodeGroupBBox.height;\n    */\n\n    if (x == null && y == null) {\n      // get the coordinates of the source if x and y were not provided\n      x = this.path.attr('x1');\n      y = this.path.attr('y1');\n    }\n\n    /*\n     * find the nearest point from the source to anywhere along the\n     * rectangular perimeter of the destination image\n     */\n    var point = this.getNearestPointInPerimeter(rectMinX, rectMinY, width, height, x, y);\n\n    return point;\n  }\n\n  /**\n   * Get the nearest point on a rectangle from a source point\n   * @param l the upper left x value of the rectangle\n   * @param t the upper left y value of the rectangle\n   * @param w the width of the rectangle\n   * @param h the height of the rectangle\n   * @param x the source point x value\n   * @param y the source point y value\n   * @returns the point on the rectangle that is closest to the\n   */\n  getNearestPointInPerimeter(l, t, w, h, x, y) {\n    var r = l + w;\n    var b = t + h;\n\n    var x = this.clamp(x, l , r);\n    var y = this.clamp(y, t, b);\n\n    var dl = Math.abs(x - l);\n    var dr = Math.abs(x - r);\n    var dt = Math.abs(y - t);\n    var db = Math.abs(y - b);\n\n    var m = Math.min(dl, dr, dt, db);\n\n    var point = {};\n\n    if (m == dt) {\n      point.x = x;\n      point.y = t;\n    } else if (m == db) {\n      point.x = x;\n      point.y = b;\n    } else if (m == dl) {\n      point.x = l;\n      point.y = y;\n    } else {\n      point.x = r;\n      point.y = y;\n    }\n\n    return point;\n  }\n\n  /**\n   * Helper function for getNearestPointInPerimeter\n   */\n  clamp(x, lower, upper) {\n    return Math.max(lower, Math.min(upper, x));\n  }\n\n  /**\n   * Set the color of the link\n   * @param color the color\n   */\n  setColor(color) {\n\n    if (color != null) {\n      // set the color styling\n      this.color = color;\n      this.path.attr('stroke', this.color);\n      this.head.attr('stroke', this.color);\n      this.head.attr('fill', this.color);\n      this.deleteButton.attr('stroke', this.color);\n      this.deleteButtonX.attr('stroke', this.color);\n    }\n  }\n\n  /**\n   * Set the label\n   * @param label the text label\n   */\n  setLabel(label) {\n\n    if (label != null) {\n\n      // remember the label\n      this.label = label;\n\n      // set the text into the text element\n      this.text.text(label);\n\n      // show the text group now that it has a label\n      this.showTextGroup();\n\n      // reset the width to adjust to the new text length\n      var width = 0;\n\n      try {\n        // get the width of the bounding box of the text node\n        var textBBox = this.text.node.getBBox();\n\n        if (textBBox.width == 0) {\n          width = this.calculateTextRectWidth(this.label);\n        } else {\n          width = textBBox.width + 10;\n        }\n      } catch(e) {\n        /*\n         * we were unable to get the bounding box (likely because\n         * Firefox threw an error when trying to call getBBox())\n         * so we will calculate the width based on the label text\n         */\n        width = this.calculateTextRectWidth(this.label);\n      }\n\n      this.textRect.attr('width', width);\n\n      // recalculate the position of the svg text object\n      var totalLength = this.path.node.getTotalLength();\n      var midPoint = this.path.node.getPointAtLength(totalLength * this.textPercentageLocationOnLink);\n      this.textGroup.cx(midPoint.x);\n      this.textGroup.cy(midPoint.y);\n    }\n  }\n\n  /**\n   * Connect a link the its source and destination nodes\n   */\n  connectLinkToNodes() {\n\n    if (this.sourceNode != null && this.destinationNode != null) {\n\n      // add the link to the outgoing links of its source node\n      this.sourceNode.addOutgoingLink(this);\n\n      // add the link to the incoming links of its destination node\n      this.destinationNode.addIncomingLink(this);\n    }\n  }\n\n  /**\n   * Create the delete button for the link\n   */\n  createDeleteButtonGroup() {\n    // create a group to contain the elements of the delete button\n    this.deleteButtonGroup = this.draw.group();\n\n    /*\n     * create an invisible circle that is placed behind the delete button\n     * and has a larger radius than the delete button. this is used for\n     * mouse over purposes so that we can keep the delete button visible\n     * when the mouse is around the area of the delete button\n     */\n    var invisibleCircleRadius = 30;\n    this.invisibleCircle = this.draw.circle();\n    this.invisibleCircle.radius(invisibleCircleRadius);\n    this.invisibleCircle.fill({ opacity: 0.0});\n\n    // create the delete button circle\n    var deleteButtonRadius = 10;\n    this.deleteButton = this.draw.circle();\n    this.deleteButton.radius(deleteButtonRadius);\n    this.deleteButton.fill({ opacity: 0.0 });\n    this.deleteButton.stroke({ color: this.color, opacity: 1.0, width: 2 });\n\n    /*\n     * create the x part of the delete button by creating a + and then\n     * rotating it 45 degrees\n     */\n\n    // get the coordinate of the center of the delete button\n    var deleteButtonMidpointX = this.deleteButton.cx();\n    var deleteButtonMidpointY = this.deleteButton.cy();\n\n    // get the coordinates of the top of the +\n    var topX = deleteButtonMidpointX;\n    var topY = deleteButtonMidpointY - (deleteButtonRadius * 0.7);\n\n    // get the coordinates of the bottom of the +\n    var bottomX = deleteButtonMidpointX;\n    var bottomY = deleteButtonMidpointY + (deleteButtonRadius * 0.7);\n\n    // get the coordinates of the left of the +\n    var leftX = deleteButtonMidpointX - (deleteButtonRadius * 0.7);\n    var leftY = deleteButtonMidpointY;\n\n    // get the coordinates of the right of the +\n    var rightX = deleteButtonMidpointX + (deleteButtonRadius * 0.7);\n    var rightY = deleteButtonMidpointY;\n\n    // create the path for the +\n    var deleteButtonXPath = 'M' + topX + ',' + topY + 'L' + bottomX + ',' + bottomY + 'M' + leftX + ',' + leftY + 'L' + rightX + ',' + rightY;\n\n    // draw the path\n    this.deleteButtonX = this.draw.path(deleteButtonXPath);\n    this.deleteButtonX.stroke({ color: this.color, opacity: 1.0, width: 2 });\n\n    /// rotate the + to create the x\n    this.deleteButtonX.rotate(45);\n\n    /*\n     * disable pointer events on the x so that we only need to set a\n     * mouse listener on the circle\n     */\n    this.deleteButtonX.attr('pointer-events', 'none');\n\n    // add the invisible circle, regular circle, and x to the group\n    this.deleteButtonGroup.add(this.invisibleCircle);\n    this.deleteButtonGroup.add(this.deleteButton);\n    this.deleteButtonGroup.add(this.deleteButtonX);\n\n    // set the location of the delete button group\n    var location = this.getDeleteButtonLocation();\n    var x = location.x;\n    var y = location.y;\n    this.deleteButtonGroup.x(x);\n    this.deleteButtonGroup.y(y);\n\n    // set the listener for when the mouse is over the group\n    this.deleteButtonGroup.mouseover((event) => {\n      this.deleteButtonGroupMouseOver(event);\n    });\n\n    // set the listener for when the mouse moves out of the group\n    this.deleteButtonGroup.mouseout((event) => {\n      this.deleteButtonGroupMouseOut(event);\n    });\n\n    // add the delete button group to the link group\n    this.group.add(this.deleteButtonGroup);\n\n    /*\n     * hide the delete button. we only need to show the delete button\n     * when the link is active.\n     */\n    this.deleteButtonGroup.hide();\n  }\n\n  /**\n   * Called when the mouse is over the delete button group\n   * @param event the mouseover event\n   */\n  deleteButtonGroupMouseOver(event) {\n    // show the delete button\n    this.showDeleteButton();\n  }\n\n  /**\n   * Called when the mouse leaves the delete button group\n   * @param event the mouseout event\n   */\n  deleteButtonGroupMouseOut(event) {\n    if (!this.highlighted) {\n      // the link is not highlighted so we will hide the delete button\n      this.hideDeleteButton();\n    }\n  }\n\n  /**\n   * Called when the delete button is clicked\n   * @param deleteButtonClickedFunction the function to call when the delete\n   * button is clicked\n   */\n  setDeleteButtonClicked(deleteButtonClickedFunction) {\n    // listen for the click event on the delete button to call the function\n    this.deleteButton.click(deleteButtonClickedFunction);\n  }\n\n  /**\n   * Called when the mouse is clicked down on the group\n   * @param linkMouseDownFunction the function to call when the mouse is\n   * clicked down on the group\n   */\n  setLinkMouseDown(linkMouseDownFunction) {\n\n    if (this.group != null) {\n      /*\n       * listen for the mousedown event on the group to call\n       * the function\n       */\n      this.group.mousedown(linkMouseDownFunction);\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on the link text group\n   * @param linkTextMouseDownFunction the function to call when the mouse is\n   * clicked down on the link text group\n   */\n  setLinkTextMouseDown(linkTextMouseDownFunction) {\n\n    if (this.textGroup != null) {\n      /*\n       * listen for the mousedown event on the link text group to call\n       * the function\n       */\n      this.textGroup.mousedown(linkTextMouseDownFunction);\n    }\n  }\n\n  /**\n   * Called when the mouse is over the group\n   * @param linkMouseOverFunction the function to call when the mouse is over\n   * the group\n   */\n  setLinkMouseOver(linkMouseOverFunction) {\n    if (this.group != null) {\n      // listen for the mouseover event on the group to call the function\n      this.group.mouseover(linkMouseOverFunction);\n    }\n  }\n\n  /**\n   * Called when the mouse leaves the group\n   * @param linkMouseOutFunction the function to call when the mouse leaves\n   * the group\n   */\n  setLinkMouseOut(linkMouseOutFunction) {\n    if (this.group != null) {\n      // listen for the mouseout event on the group to call the function\n      this.group.mouseout(linkMouseOutFunction);\n    }\n  }\n\n  /**\n  * Calculate the location of the delete button for the link\n  *\n  * Note: This function and the associated functions that are called by this\n  * function are taken from the Concord MySystem github project.\n  * https://github.com/concord-consortium/mysystem_sc\n  * The code is found in the _setRemoveButtonLocation function in the link.js file.\n  * mysystem_sc/apps/my_system/views/link.js\n  */\n  getDeleteButtonLocation() {\n    //var line = raphaelObject.items[2];\n\n    var line = this.path.node;\n    var distanceAlongLine = 35;\n    var distanceAlongNormal = 18;\n    var len, p1, p2, scale, dx, dy, x, y, occluded;\n\n    /*\n    var link = this.get('content');\n    if (!link.isComplete()) return;\n    if (line.attr('path').length < 1) return;   // this can happen after our content is destroyed\n    */\n\n    len = line.getTotalLength();\n    p2  = line.getPointAtLength(len);\n\n    if (len > 50) {\n      p1 = line.getPointAtLength(len - distanceAlongLine);\n\n      dx = p2.x - p1.x;\n      dy = p2.y - p1.y;\n      scale = distanceAlongNormal / distanceAlongLine * (dx > 0 ? 1 : -1);\n\n      x = p1.x + scale * dy;\n      y = p1.y - scale * dx;\n      //occluded = NO;\n    }\n    else {\n      x = 0;\n      y = 0;\n      //occluded = YES;\n    }\n\n    /*\n    this.set('removeButtonX', x);\n    this.set('removeButtonY', y);\n    this.set('isRemoveButtonOccluded', occluded);\n    */\n\n    var location = {};\n    location.x = x;\n    location.y = y;\n\n    return location;\n  }\n\n  /**\n   * Show the delete button\n   */\n  showDeleteButton() {\n    if (this.deleteButtonGroup != null) {\n      this.deleteButtonGroup.show();\n    }\n  }\n\n  /**\n   * Hide the delete button\n   */\n  hideDeleteButton() {\n    if (this.deleteButtonGroup != null) {\n      this.deleteButtonGroup.hide();\n    }\n  }\n\n  /**\n   * Create the text group\n   * @returns the text group\n   */\n  createTextGroup() {\n\n    // create the group\n    this.textGroup = this.draw.group();\n\n    // create a rectangle to surround the text\n    this.textRect = this.draw.rect(100, 15);\n    this.textRect.attr('fill', 'white');\n    this.textRect.attr('stroke', 'black');\n    this.textRect.attr('x', 0);\n    this.textRect.attr('y', 10);\n    this.textRect.attr('width', 100);\n    this.textRect.attr('height', 20);\n    this.textRect.radius(5);\n\n    var label = '';\n\n    // create the text element\n    this.text = this.draw.text(label);\n    this.text.attr('x', 5);\n    this.text.attr('y', 9);\n    this.text.font({\n      family: 'Arial',\n      size: 12\n    });\n\n    // prevent the text from being highlighted when the user drags the mouse\n    this.text.style('user-select:none');\n    this.text.node.setAttribute('user-select', 'none');\n    this.text.node.setAttribute('style', 'user-select:none');\n\n    // add the rectangle and text to the group\n    this.textGroup.add(this.textRect);\n    this.textGroup.add(this.text);\n\n    var width = 0;\n\n    try {\n      // get the width of the bounding box of the text node\n      var textBBox = this.text.node.getBBox();\n\n      if (textBBox.width == 0) {\n        width = this.calculateTextRectWidth(this.label);\n      } else {\n        width = textBBox.width + 10;\n      }\n    } catch(e) {\n      /*\n       * we were unable to get the bounding box (likely because\n       * Firefox threw an error when trying to call getBBox())\n       * so we will calculate the width based on the label text\n       */\n      width = this.calculateTextRectWidth(this.label);\n    }\n\n    this.textRect.attr('width', width);\n\n    // set the location of the text to be somewhere along the line of the link\n    var totalLength = this.path.node.getTotalLength();\n    var midPoint = this.path.node.getPointAtLength(totalLength * this.textPercentageLocationOnLink);\n    this.textGroup.cx(midPoint.x);\n    this.textGroup.cy(midPoint.y);\n\n    // hide the text group until the student has chosen a link type\n    this.textGroup.hide();\n\n    /*\n     * set the link group id into the text group so we can look it up\n     * later when the mouse is clicked down on the text group\n     */\n    this.textGroup.node.linkGroupId = this.group.id();\n\n    return this.textGroup;\n  }\n\n  /**\n   * Move the text group to the front so that it won't be blocked behind\n   * another element when the student tries to click on the text group.\n   */\n  moveTextGroupToFront() {\n    this.textGroup.front();\n  }\n\n  /**\n   * Show the text group\n   */\n  showTextGroup() {\n\n    if (this.textGroup != null) {\n      this.textGroup.show();\n    }\n  }\n\n  /**\n   * Hide the text group\n   */\n  hideTextGroup() {\n\n    if (this.textGroup != null) {\n      this.textGroup.hide();\n    }\n  }\n\n  /**\n   * Remove all the references to the link and also remove all the elements\n   * from the svg\n   */\n  remove() {\n\n    if (this.sourceNode != null) {\n      // remove the link from the source node's outgoing links\n      this.sourceNode.removeOutgoingLink(this);\n    }\n\n    if (this.destinationNode != null) {\n      // remove the link from the destination node's incoming links\n      this.destinationNode.removeIncomingLink(this);\n    }\n\n    if (this.path != null) {\n      // remove the line\n      this.path.remove();\n    }\n\n    if (this.head != null) {\n      // remove the arrow head\n      this.head.remove();\n    }\n\n    if (this.deleteButtonGroup != null) {\n      // remove the delete button group\n      this.deleteButtonGroup.remove();\n    }\n\n    if (this.textGroup != null) {\n      // remove the text group\n      this.textGroup.remove();\n    }\n\n    if (this.group != null) {\n      // remove the link group\n      this.group.remove();\n    }\n  }\n\n  /**\n   * Calculate the width that the text rectangle should be set to\n   * @param labelText the label text that will be displayed in the rectangle\n   * @return the width that the text rectangle should be set to\n   */\n  calculateTextRectWidth(labelText) {\n    var width = 0;\n\n    if (labelText != null) {\n      width = (labelText.length * 6) + 10;\n    }\n\n    return width;\n  }\n\n  // end of ConceptMapLink class\n}\n\n\nConceptMapService.$inject = [\n  '$anchorScroll',\n  '$filter',\n  '$location',\n  '$q',\n  '$timeout',\n  'ConfigService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default ConceptMapService;\n"]}
\ No newline at end of file
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ComponentService from '../componentService';\n\nclass ConceptMapService extends ComponentService {\n  constructor(\n      $anchorScroll,\n      $filter,\n      $location,\n      $q,\n      $timeout,\n      ConfigService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super($filter, StudentDataService, UtilService);\n    this.$anchorScroll = $anchorScroll;\n    this.$location = $location;\n    this.$q = $q;\n    this.$timeout = $timeout;\n    this.ConfigService = ConfigService;\n    this.StudentAssetService = StudentAssetService;\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('conceptMap.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'ConceptMap';\n    component.width = 800;\n    component.height = 600;\n    component.background = null;\n    component.stretchBackground = null;\n    component.nodes = [];\n    component.linksTitle = '';\n    component.links = [];\n    component.rules = [];\n    component.starterConceptMap = null;\n    component.customRuleEvaluator = '';\n    component.showAutoScore = false;\n    component.showAutoFeedback = false;\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.isSubmit == true || (state.studentData.submitCounter != null && state.studentData.submitCounter > 0)) {\n              // there is a response so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.conceptMapData != null) {\n            // there is a response so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Create an instance of the ConceptMapNode class\n   * @param draw the svg.js draw object\n   * @param id the node id\n   * @param filePath the file path of the image\n   * @param label the label of the node\n   * @param x the x coordinate\n   * @param y the y coordinate\n   * @param width the width of the image\n   * @param height the height of the image\n   * @param a ConceptMapNode\n   */\n  newConceptMapNode(draw, id, originalId, filePath, label, x, y, width, height) {\n    return new ConceptMapNode(this, draw, id, originalId, filePath, label, x, y, width, height);\n  }\n\n  /**\n   * Create an instance of the ConceptMapLink class\n   * @param draw the svg.js draw object\n   * @param id the link id\n   * @param node the source ConceptMapNode that the link is coming out of\n   * @param x the x position of the tail\n   * @param y the y position of the tail\n   * @returns a ConceptMapLink\n   */\n  newConceptMapLink(draw, id, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, startCurveDown) {\n    return new ConceptMapLink(this, draw, id, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, startCurveDown);\n  }\n\n  /**\n   * Get the slope of the line between two points\n   * @param x1 x position of the first point\n   * @param y1 y position of the first point\n   * @param x2 x position of the second point\n   * @param y2 y position of the second point\n   * @returns the slope of the line or null if the slope is infinite\n   */\n  getSlope(x1, y1, x2, y2) {\n\n    var slope = null;\n\n    if ((x2 - x1) == 0) {\n      // the slope is infinite so we will return null\n      slope = null;\n    } else {\n      // calculate the slope\n      slope = (y2 - y1) / (x2 - x1);\n    }\n\n    return slope;\n  }\n\n  /**\n   * Calculate the euclidean distance between two points\n   * @param x1 x position of the first point\n   * @param y1 y position of the first point\n   * @param x2 x position of the second point\n   * @param y2 y position of the second point\n   * @returns the distance between the two points\n   */\n  calculateDistance(x1, y1, x2, y2) {\n\n    // calculate the distance\n    var distance = Math.sqrt(Math.pow((x2 - x1), 2) + Math.pow((y2 - y1), 2));\n\n    return distance;\n  }\n\n  /**\n\n  Returns an array representation of the path elements for an arrow\n\n  First we calculate a simple curve for the tail.\n\n  Then we pick a point on that curve to use as the base-center of the arrow head,\n  then calculate the position of that triangle based on the angle between that\n  point and the tip.\n\n  @params startx {Number} X-coordinate of the start point\n  @params starty {Number} Y-coordinate of the start point\n  @params endx {Number} X-coordinate of the end point\n  @params endy {Number} Y-coordinate of the end point\n  @params len {Number} Length of the \"tip\" of the arrowhead\n  @params angle {Number} Angle in degrees\n    between the line and each wing of the arrowhead.\n    Should be less than 90.\n\n  Note: This function and the associated functions that are called by this\n  function are taken from the Concord MySystem github project.\n  https://github.com/concord-consortium/mysystem_sc\n  The code is found in the arrow_drawing.js file.\n  mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n\n  **/\n  arrowPathArrays(startx,starty,endx,endy,startCurveUp,endCurveUp,len,angle,curvature,nodeRadius) {\n\n    if (startx === endx && starty === endy){\n      return [[\"\"],[\"\"]];\n    }\n\n    var start = new this.coord(startx, starty),\n    tip = new this.coord(endx, endy),\n    pathData   = [],\n    arrowHeadData = [];\n\n    // calculate control points c2 and c3\n    var curveDistance = (tip.x - start.x) * curvature,\n    startYCurveDistance = (curveDistance === 0 ? 1 : Math.max(Math.min(curveDistance, 100), -100)),\n    endYCurveDistance = startYCurveDistance,\n    startUp = startCurveUp ? 1 : -1,\n    endUp = endCurveUp ? 1 : -1;\n    startYCurveDistance = (startYCurveDistance * startUp > 0) ? startYCurveDistance : startYCurveDistance * -1;\n    endYCurveDistance = (endYCurveDistance * endUp > 0) ? endYCurveDistance : endYCurveDistance * -1;\n    var c2 = new this.coord(start.x+(curveDistance/2), start.y-startYCurveDistance),\n    c3 = new this.coord(tip.x-(curveDistance/2), tip.y-endYCurveDistance),\n    cDistance = Math.sqrt(Math.pow((curveDistance/2),2) + Math.pow(startYCurveDistance,2)),\n    perimX = nodeRadius*(curveDistance/2)/cDistance,\n    perimYstart = nodeRadius*startYCurveDistance/cDistance,\n    perimYend = nodeRadius*endYCurveDistance/cDistance;\n\n    // update tip\n    tip = new this.coord(tip.x - perimX, tip.y - perimYend);\n\n    // draw arrow path\n\n    pathData.push(\"M\", start.x + perimX, start.y - perimYstart);  // move to start of line\n    pathData.push(\"C\", c2.x, c2.y, c3.x, c3.y, tip.x, tip.y); // curve line to the tip\n\n    // draw arrow head\n    var percLengthOfHead = len / this.getLengthOfCubicBezier(start, c2, c3, tip),\n    centerBaseOfHead = this.getPointOnCubicBezier(percLengthOfHead, start, c2, c3, tip),\n    theta  = Math.atan2((tip.y-centerBaseOfHead.y),(tip.x-centerBaseOfHead.x)),\n    baseAngleA = theta + angle * Math.PI/180,\n    baseAngleB = theta - angle * Math.PI/180,\n    baseA    = new this.coord(tip.x - len * Math.cos(baseAngleA), tip.y - len * Math.sin(baseAngleA)),\n    baseB    = new this.coord(tip.x - len * Math.cos(baseAngleB), tip.y - len * Math.sin(baseAngleB));\n\n    arrowHeadData.push(\"M\", tip.x, tip.y);\n    arrowHeadData.push(\"L\", baseA.x, baseA.y);  // line to baseA\n    arrowHeadData.push(\"L\", baseB.x, baseB.y);  // line to baseB\n    arrowHeadData.push(\"L\", tip.x,   tip.y  );  // line back to the tip\n\n    return [pathData, arrowHeadData];\n  }\n\n  /**\n   * Note: This function is from\n   * https://github.com/concord-consortium/mysystem_sc\n   * The code is found in the arrow_drawing.js file.\n   * mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n   */\n  coord(x,y) {\n    if(!x) x = 0;\n    if(!y) y = 0;\n    /*\n    *   Limit precision of decimals for SVG rendering.\n    *   otherwise we get really long SVG strings,\n    *   and webkit error messsages like of this sort:\n    *   \"Error: Problem parsing d='<svg string with long dec>'\"\n    */\n    x = Math.round(x * 1000)/1000;\n    y = Math.round(y * 1000)/1000;\n    return {x: x, y: y};\n  }\n\n  /**\n   * Note: This function is from\n   * https://github.com/concord-consortium/mysystem_sc\n   * The code is found in the arrow_drawing.js file.\n   * mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n   */\n  getLengthOfCubicBezier(C1,C2,C3,C4)\n  {\n    var precision = 10,\n    length  = 0,\n    t,\n    currentPoint,\n    previousPoint;\n\n    for (var i = 0; i<precision; i++){\n      t = i/precision;\n      currentPoint = this.getPointOnCubicBezier(t, C1,C2,C3,C4);\n      if (i > 0){\n        var xDif = currentPoint.x - previousPoint.x,\n        yDif = currentPoint.y - previousPoint.y;\n        length += Math.sqrt((xDif*xDif) + (yDif*yDif));\n      }\n      previousPoint = currentPoint;\n    }\n    return length;\n  }\n\n  /**\n   * Note: This function is from\n   * https://github.com/concord-consortium/mysystem_sc\n   * The code is found in the arrow_drawing.js file.\n   * mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n   */\n  getPointOnCubicBezier(percent,C1,C2,C3,C4) {\n    if (percent < 0) percent = 0;\n    if (percent > 1) percent = 1;\n    var pos = new this.coord();\n    pos.x = C1.x*this.B1(percent) + C2.x*this.B2(percent) + C3.x*this.B3(percent) + C4.x*this.B4(percent);\n    pos.y = C1.y*this.B1(percent) + C2.y*this.B2(percent) + C3.y*this.B3(percent) + C4.y*this.B4(percent);\n    return pos;\n  }\n\n  /**\n   * Note: These functions are from\n   * https://github.com/concord-consortium/mysystem_sc\n   * The code is found in the arrow_drawing.js file.\n   * mysystem_sc/apps/my_system/mixins/arrow_drawing.js\n   */\n  B1(t) { return t*t*t; }\n  B2(t) { return 3*t*t*(1-t); }\n  B3(t) { return 3*t*(1-t)*(1-t); }\n  B4(t) { return (1-t)*(1-t)*(1-t); }\n\n  /**\n   * Evaluate a rule name\n   * @param componentContent the component content\n   * @param conceptMapData the student concept map data\n   * @param ruleName the rule name\n   * @returns whether the rule was satisfied\n   */\n  evaluateRuleByRuleName(componentContent, conceptMapData, ruleName) {\n\n    var result = false;\n\n    if (ruleName === true) {\n      // the rule name is not actually a rule but is the true boolean\n      return true;\n    } else if (ruleName === false) {\n      // the rule name is not actually a rule but is the false boolean\n      return false;\n    }\n\n    // get the rule\n    var rule = this.getRuleByRuleName(componentContent, ruleName);\n\n    if (rule == null) {\n      /*\n       * we didn't find a rule with the given rule name so we will look\n       * for a category with that name\n       */\n\n      // get the rules that are in the category\n      var rules = this.getRulesByCategoryName(componentContent, ruleName);\n\n      var firstRule = true;\n\n      if (rules != null) {\n\n        /*\n         * loop through all the rules in the category. we will say the\n         * category is satisfied if all the rules in the category\n         * evaluate to true.\n         */\n        for (var r = 0; r < rules.length; r++) {\n          var tempRule = rules[r];\n\n          // evaluate the rule\n          var tempResult = this.evaluateRule(conceptMapData, tempRule);\n\n          if (firstRule) {\n            /*\n             * this is the first rule so we will set the value\n             * of the rule to the result\n             */\n            result = tempResult;\n            firstRule = false;\n          } else {\n            /*\n             * this is not the first rule so we will compute the\n             * \"logical and\" of the result so far and this rule's\n             * result\n             */\n            result = result && tempResult;\n          }\n\n          if (!result) {\n            /*\n             * the result is false so we can short circuit and\n             * stop looping since we have now just found that\n             * one of the rules is not satisfied which means\n             * the category is not satisfied.\n             */\n            break;\n          }\n        }\n      }\n    } else {\n      // evaluate the rule\n      result = this.evaluateRule(conceptMapData, rule);\n    }\n\n    return result;\n  }\n\n  /**\n   * Evaluate a rule\n   * @param conceptMapData the concept map student data\n   * @param rule the rule object\n   * @returns whether the rule was satisfied\n   */\n  evaluateRule(conceptMapData, rule) {\n\n    var result = false;\n\n    if (rule != null) {\n\n      if (rule.type == 'node') {\n        // this is a node rule\n\n        // get the node we are looking for\n        var nodeLabel = rule.nodeLabel;\n\n        // get all the nodes with the given label\n        var nodes = this.getNodesByLabel(conceptMapData, nodeLabel);\n\n        // get the number of nodes with the given label\n        var nodeCount = nodes.length;\n\n        /*\n         * the comparison for the number which can be \"exactly\",\n         * \"more than\", or \"less than\"\n         */\n        var comparison = rule.comparison;\n\n        // the number to compare to\n        var number = rule.number;\n\n        if (comparison == 'exactly') {\n          /*\n           * we are looking for an exact number of nodes with the\n           * given label\n           */\n          if (nodeCount == number) {\n            result = true;\n          }\n        } else if (comparison == 'more than') {\n          /*\n           * we are looking for more than a certain number of nodes\n           * with the given label\n           */\n          if (nodeCount > number) {\n            result = true;\n          }\n        } else if (comparison == 'less than') {\n          /*\n           * we are looking for less than a certain number of nodes\n           * with the given label\n           */\n          if (nodeCount < number) {\n            result = true;\n          }\n        }\n\n        if (rule.not) {\n          /*\n           * the rule is satisfied if the result is false so we will\n           * negate the result\n           */\n          result = !result;\n        }\n\n      } else if (rule.type == 'link') {\n        // this is a link rule\n\n        // get the source node label\n        var nodeLabel = rule.nodeLabel;\n\n        // get the link label\n        var linkLabel = rule.linkLabel;\n\n        // get the destination node label\n        var otherNodeLabel = rule.otherNodeLabel;\n\n        // get all the links with the matching labels\n        var links = this.getLinksByLabels(conceptMapData, nodeLabel, linkLabel, otherNodeLabel);\n\n        // get the number of links with the matching labels\n        var linkCount = links.length;\n\n        /*\n         * the comparison for the number which can be \"exactly\",\n         * \"more than\", or \"less than\"\n         */\n        var comparison = rule.comparison;\n\n        // the number to compare to\n        var number = rule.number;\n\n        if (comparison == 'exactly') {\n          // we are looking for an exact number of links\n          if (linkCount == number) {\n            result = true;\n          }\n        } else if (comparison == 'more than') {\n          // we are looking for more than a certain number of links\n          if (linkCount > number) {\n            result = true;\n          }\n        } else if (comparison == 'less than') {\n          // we are looking for less than a certain number of links\n          if (linkCount < number) {\n            result = true;\n          }\n        }\n\n        if (rule.not) {\n          /*\n           * the rule is satisfied if the result is false so we will\n           * negate the result\n           */\n          result = !result;\n        }\n      }\n    }\n\n    return result;\n  }\n\n  /**\n   * Get a rule by the rule name\n   * @param componentContent the concept map component content\n   * @param ruleName the rule name\n   * @returns the rule with the given rule name\n   */\n  getRuleByRuleName(componentContent, ruleName) {\n\n    var rule = null;\n\n    if (ruleName != null) {\n\n      // get the rules\n      var rules = componentContent.rules;\n\n      if (rules != null) {\n\n        // loop through all the rules\n        for (var r = 0; r < rules.length; r++) {\n\n          // get a rule\n          var tempRule = rules[r];\n\n          if (tempRule != null) {\n\n            if (ruleName == tempRule.name) {\n              // we have found the rule with the name we want\n              rule = tempRule;\n            }\n          }\n        }\n      }\n    }\n\n    return rule;\n  }\n\n  /**\n   * Get the rules in the category\n   * @param componentContent the component content\n   * @param category the category name\n   * @returns the rules in the category\n   */\n  getRulesByCategoryName(componentContent, category) {\n\n    var rules = [];\n\n    if (componentContent != null) {\n\n      // get all the rules\n      var tempRules = componentContent.rules;\n\n      if (tempRules != null) {\n\n        // loop through all the rules\n        for (var r = 0; r < tempRules.length; r++) {\n          var rule = tempRules[r];\n\n          if (rule != null) {\n\n            // get the categories the rule is in\n            var categories = rule.categories;\n\n            if (categories != null) {\n\n              // loop through categories the rule is in\n              for (var c = 0; c < categories.length; c++) {\n                var tempCategory = categories[c];\n\n                if (category == tempCategory) {\n                  /*\n                   * the rule is in the category we are\n                   * searching for\n                   */\n                  rules.push(rule);\n                  break;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return rules;\n  }\n\n  /**\n   * Get nodes by label\n   * @param conceptMapData the concept map student data\n   * @param label the node label to look for\n   * @returns all the nodes with the given label\n   */\n  getNodesByLabel(conceptMapData, label) {\n\n    var nodesByLabel = [];\n\n    if (conceptMapData != null) {\n\n      var nodes = conceptMapData.nodes;\n\n      if (nodes != null) {\n\n        // loop through all the nodes\n        for (var n = 0; n < nodes.length; n++) {\n          var node = nodes[n];\n\n          if (node != null) {\n\n            if (label == node.label || label == 'any') {\n              /*\n               * we have found a node with the label we are\n               * looking for\n               */\n              nodesByLabel.push(node);\n            }\n          }\n        }\n      }\n    }\n\n    return nodesByLabel;\n  }\n\n  /**\n   * Get links with the given source node label, link label, and destination\n   * node label\n   * @param conceptMapData the concept map student data\n   * @param nodeLabel the source node label\n   * @param linkLabel the link label\n   * @param otherNodeLabel the destination node label\n   * @returns the links with the given source node label, link label, and\n   * destination node label\n   */\n  getLinksByLabels(conceptMapData, nodeLabel, linkLabel, otherNodeLabel) {\n\n    var resultLinks = [];\n\n    if (conceptMapData != null) {\n\n      var links = conceptMapData.links;\n\n      if (links != null) {\n\n        // loop through all the links\n        for (var l = 0; l < links.length; l++) {\n          var tempLink = links[l];\n\n          if (tempLink != null) {\n\n            // get the labels\n            var tempLinkLabel = tempLink.label;\n            var sourceNodeLabel = tempLink.sourceNodeLabel;\n            var destinationNodeLabel = tempLink.destinationNodeLabel;\n\n            if ((nodeLabel == sourceNodeLabel || nodeLabel == 'any') &&\n              (linkLabel == tempLinkLabel || linkLabel == 'any') &&\n              (otherNodeLabel == destinationNodeLabel || otherNodeLabel == 'any')) {\n\n              // the labels match the ones we are looking for\n              resultLinks.push(tempLink);\n            }\n          }\n        }\n      }\n    }\n\n    return resultLinks;\n  }\n\n  /**\n   * Check if any of the rules are satisfied\n   * @param componentContent the concept map component content\n   * @param conceptMapData the concept map student data\n   * @param args an array of rule names\n   * @returns true if any of the rules are satisifed\n   * false if none of the rules are satisified\n   */\n  any(componentContent, conceptMapData, args) {\n\n    // loop through all the rule names\n    for (var n = 0; n < args.length; n++) {\n\n      // get a rule name\n      var ruleName = args[n];\n\n      // check if the rule is satisifed\n      var ruleResult = this.evaluateRuleByRuleName(componentContent, conceptMapData, ruleName);\n\n      if (ruleResult) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if all the rules are satisfied\n   * @param componentContent the concept map component content\n   * @param conceptMapData the concept map student data\n   * @param args an array of rule names\n   * @returns true if all the rules are satisifed\n   * false if any of the rules are not satisfied\n   */\n  all(componentContent, conceptMapData, args) {\n    var result = true;\n\n    // loop through all the rule names\n    for (var n = 0; n < args.length; n++) {\n\n      // get a rule name\n      var ruleName = args[n];\n\n      // check if the rule is satisfied\n      var ruleResult = this.evaluateRuleByRuleName(componentContent, conceptMapData, ruleName);\n\n      result = result && ruleResult;\n    }\n    return result;\n  }\n\n  /**\n   * Populate the concept map data into the component\n   * @param draw the SVG draw div\n   * @param conceptMapData the concept map data which contains an array\n   * of nodes and an array of links\n   */\n  populateConceptMapData(draw, conceptMapData) {\n\n    if (conceptMapData != null) {\n\n      // get the JSON nodes\n      var nodes = conceptMapData.nodes;\n\n      // this is used to hold the SVG node objects\n      var conceptMapNodes = [];\n\n      if (nodes != null) {\n\n        // loop through all the nodes\n        for (var n = 0; n < nodes.length; n++) {\n          var node = nodes[n];\n\n          var instanceId = node.instanceId;\n          var originalId = node.originalId;\n          var filePath = node.fileName;\n          var label = node.label;\n          var x = node.x;\n          var y = node.y;\n          var width = node.width;\n          var height = node.height\n\n          // create a ConceptMapNode\n          var conceptMapNode = this.newConceptMapNode(draw, instanceId, originalId, filePath, label, x, y, width, height);\n\n          conceptMapNodes.push(conceptMapNode);\n        }\n      }\n\n      // get the JSON links\n      var links = conceptMapData.links;\n\n      // this is used to hold the SVG link objects\n      var conceptMapLinks = [];\n\n      if (links != null) {\n\n        // loop through all the links\n        for (var l = 0; l < links.length; l++) {\n          var link = links[l];\n\n          var instanceId = link.instanceId;\n          var originalId = link.originalId;\n          var sourceNodeId = link.sourceNodeInstanceId;\n          var destinationNodeId = link.destinationNodeInstanceId;\n          var label = link.label;\n          var color = link.color;\n          var curvature = link.curvature;\n          var startCurveUp = link.startCurveUp;\n          var endCurveUp = link.endCurveUp;\n          var sourceNode = null;\n          var destinationNode = null;\n\n          if (sourceNodeId != null) {\n            sourceNode = this.getNodeById(conceptMapNodes, sourceNodeId);\n          }\n\n          if (destinationNodeId != null) {\n            destinationNode = this.getNodeById(conceptMapNodes, destinationNodeId);\n          }\n\n          // create a ConceptMapLink\n          var conceptMapLink = this.newConceptMapLink(draw, instanceId, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, endCurveUp);\n\n          conceptMapLinks.push(conceptMapLink);\n        }\n      }\n\n      /*\n       * move the link text group to the front so that they are on top\n       * of links\n       */\n      this.moveLinkTextToFront(conceptMapLinks);\n\n      // move the nodes to the front so that they are on top of links\n      this.moveNodesToFront(conceptMapNodes);\n\n      /*\n       * set a timeout to refresh the link labels so that the rectangles\n       * around the labels are properly resized\n       */\n      // this.$timeout(() => {\n      //   this.refreshLinkLabels(conceptMapNodes, conceptMapLinks);\n      // });\n      this.refreshLinkLabels(conceptMapNodes, conceptMapLinks);\n    }\n  }\n\n  /**\n   * Move the link text group to the front\n   */\n  moveLinkTextToFront(links) {\n\n    // loop through all the links\n    for (var l = 0; l < links.length; l++) {\n      var link = links[l];\n\n      if (link != null) {\n        // move the link text group to the front\n        link.moveTextGroupToFront();\n      }\n    }\n  }\n\n  /**\n   * Move the nodes to the front so that they show up above links\n   */\n  moveNodesToFront(nodes) {\n\n    // loop through all the nodes\n    for (var n = 0; n < nodes.length; n++) {\n      var node = nodes[n];\n\n      if (node != null) {\n\n        // get a node group\n        var group = node.getGroup();\n\n        if (group != null) {\n          // move the node group to the front\n          group.front();\n        }\n      }\n    }\n  }\n\n  /**\n   * Refresh the link labels so that the rectangles around the text\n   * labels are resized to fit the text properly. This is required because\n   * the rectangles are not properly sized when the ConceptMapLinks are\n   * initialized. The rectangles need to be rendered first and then the\n   * labels need to be set in order for the rectangles to be resized properly.\n   * This is why this function is called in a $timeout.\n   */\n  refreshLinkLabels(nodes, links) {\n\n    if (nodes != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < nodes.length; n++) {\n        var node = nodes[n];\n\n        if (node != null) {\n          // get the label from the node\n          var label = node.getLabel();\n\n          /*\n           * set the label back into the node so that the rectangle\n           * around the text label is resized to the text\n           */\n          node.setLabel(label);\n        }\n      }\n    }\n\n    if (links != null) {\n\n      // loop throgh all the links\n      for (var l = 0; l < links.length; l++) {\n        var link = links[l];\n\n        if (link != null) {\n          // get the label from the link\n          var label = link.getLabel();\n\n          /*\n           * set the label back into the link so that the rectangle\n           * around the text label is resized to the text\n           */\n          link.setLabel(label);\n        }\n      }\n    }\n  }\n\n  /**\n   * Get a node by id.\n   * @param id the node id\n   * @returns the node with the given id or null\n   */\n  getNodeById(nodes, id) {\n    var node = null;\n\n    if (id != null) {\n\n      // loop through all the nodes\n      for (var n = 0; n < nodes.length; n++) {\n        var tempNode = nodes[n];\n        var tempNodeId = tempNode.getId();\n\n        if (id == tempNodeId) {\n          // we have found the node we want\n          node = tempNode;\n          break;\n        }\n      }\n    }\n\n    return node;\n  }\n\n  /**\n   * Create an image from the concept map data\n   * @param conceptMapData concept map data from a student\n   * @param width the width of the image we want to create\n   * @param height the height of the image we want to create\n   */\n  createImage(conceptMapData, width, height) {\n\n    // create a promise that will return an image of the concept map\n    var deferred = this.$q.defer();\n\n    // create a div to draw the SVG in\n    var svgElement = document.createElement('div');\n\n    if (width == null || width == '') {\n      // we will default to a width of 800 pixels\n      width = 800;\n    }\n\n    if (height == null || height == '') {\n      // we will default to a height of 600 pixels\n      height = 600;\n    }\n\n    var draw = SVG(svgElement);\n    draw.width(width);\n    draw.height(height);\n\n    if (svgElement != null) {\n\n      // populate the concept map data into the svg draw element\n      this.populateConceptMapData(draw, conceptMapData);\n\n      // get the svg element as a string\n      var svgString = svgElement.innerHTML;\n\n      // find all the images in the svg and replace them with Base64 images\n      this.getHrefToBase64ImageReplacements(svgString, true).then((images) => {\n\n        /*\n         * Loop through all the image objects. Each object contains\n         * an image href and a Base64 image.\n         */\n        for (var i = 0; i < images.length; i++) {\n\n          // get an image object\n          var imagePair = images[i];\n\n          // get the image href e.g. /wise/curriculum/25/assets/Sun.png\n          var imageHref = imagePair.imageHref;\n\n          // get the last index of '/'\n          var lastIndexOfSlash = imageHref.lastIndexOf('/');\n\n          if (lastIndexOfSlash != -1) {\n            // only get everything after the last '/'\n            imageHref = imageHref.substring(lastIndexOfSlash + 1);\n          }\n\n          // get the Base64 image\n          var base64Image = imagePair.base64Image;\n\n          // create a regex to match the image href\n          var imageRegEx = new RegExp(imageHref, 'g');\n\n          /*\n           * replace all the instances of the image href with the\n           * Base64 image\n           */\n          svgString = svgString.replace(imageRegEx, base64Image);\n        }\n\n        // create a canvas to draw the image on\n        var myCanvas = document.createElement('canvas');\n        var ctx = myCanvas.getContext('2d');\n\n        // create an svg blob\n        var svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n        var domURL = self.URL || self.webkitURL || self;\n        var url = domURL.createObjectURL(svg);\n        var image = new Image;\n\n        /*\n         * set the UtilService in a local variable so we can access it\n         * in the onload callback function\n         */\n        var thisUtilService = this.UtilService;\n\n        // the function that is called after the image is fully loaded\n        image.onload = (event) => {\n\n          // get the image that was loaded\n          var image = event.target;\n\n          // set the dimensions of the canvas\n          myCanvas.width = image.width;\n          myCanvas.height = image.height;\n          ctx.drawImage(image, 0, 0);\n\n          // get the canvas as a Base64 string\n          var base64Image = myCanvas.toDataURL('image/png');\n\n          // get the image object\n          var imageObject = thisUtilService.getImageObjectFromBase64String(base64Image);\n\n          // create a student asset image\n          this.StudentAssetService.uploadAsset(imageObject).then((unreferencedAsset) => {\n\n            /*\n             * make a copy of the unreferenced asset so that we\n             * get a referenced asset\n             */\n            this.StudentAssetService.copyAssetForReference(unreferencedAsset).then((referencedAsset) => {\n              if (referencedAsset != null) {\n                /*\n                 * get the asset url\n                 * for example\n                 * /wise/studentuploads/11261/297478/referenced/picture_1494016652542.png\n                 */\n                var referencedAssetUrl = referencedAsset.url;\n\n                // remove the unreferenced asset\n                this.StudentAssetService.deleteAsset(unreferencedAsset);\n\n                // resolve the promise with the image url\n                deferred.resolve(referencedAssetUrl);\n              }\n            });\n          });\n        };\n\n        // set the src of the image so that the image gets loaded\n        image.src = url;\n      });\n    }\n\n    return deferred.promise;\n  }\n\n  /**\n   * Get Base64 images from image hrefs\n   * @param svgString the svg string\n   * @param prependAssetsPath whether to prepend the assets directory path\n   * to the image references\n   * @return a promise that will return an array of objects. The objects will\n   * contain an image href and a Base64 image.\n   */\n  getHrefToBase64ImageReplacements(svgString, prependAssetsPath) {\n\n    // an array to hold all the promises\n    var promises = [];\n\n    // get all the image hrefs\n    var imageHrefs = this.getImagesInSVG(svgString);\n\n    // loop through all the images\n    for (var i = 0; i < imageHrefs.length; i++) {\n\n      // get an image href\n      var imageHref = imageHrefs[i];\n\n      if (prependAssetsPath) {\n        /*\n         * the image href is relative so we need to make it absolute\n         * so that the browser can retrieve it\n         */\n\n        // prepend the project asset directory path\n        imageHref = this.ConfigService.getProjectAssetsDirectoryPath(true) + '/' + imageHref;\n      }\n\n      // get the Base64 of the image\n      var promise = this.getBase64Image(imageHref);\n\n      promises.push(promise);\n    }\n\n    return this.$q.all(promises);\n  }\n\n  /**\n   * Get all the image hrefs in the svg string\n   * @param svgString the svg string\n   * @return an array of image hrefs\n   */\n  getImagesInSVG(svgString) {\n\n    // used to hold all the images we find\n    var images = [];\n\n    if (svgString != null) {\n\n      /*\n       * the regex to match href values in image elements\n       * e.g.\n       * if the svg contained in image element like this\n       * <image id=\"SvgjsImage1007\" xlink:href=\"/wise/curriculum/25/assets/Sun.png\" width=\"100\" height=\"100\"/>\n       * it would match it and the matching group would contain\n       * /wise/curriculum/25/assets/Sun.png\n       */\n      var regex = /<image.*?xlink:href=\"(.*?)\".*?\\/?>/g;\n\n      // find the first match in the svg string\n      var result = regex.exec(svgString);\n\n      while(result != null) {\n\n        /*\n         * get the href image from the match\n         * e.g.\n         * /wise/curriculum/25/assets/Sun.png\n         */\n        var imageHref = result[1];\n\n        // add the href to our array of hrefs\n        images.push(imageHref);\n\n        // try to find the next match\n        result = regex.exec(svgString);\n      }\n    }\n\n    return images;\n  }\n\n  /**\n   * Get the Base64 image from an image href. An image href will look like\n   * /wise/curriculum/25/assets/Sun.png\n   * @param imageHref the image href\n   * @return a promise that will return an object containing the image href\n   * and the Base64 image\n   */\n  getBase64Image(imageHref) {\n\n    var deferred = this.$q.defer();\n\n    // create the image object that we will load the image into\n    var image = new Image;\n\n    // create a new canvas to render the image in\n    var myCanvas = document.createElement('canvas');\n    var ctx = myCanvas.getContext('2d');\n\n    // the function that is called after the image is fully loaded\n    image.onload = function(event) {\n\n      // get the image that was loaded\n      var image = event.target;\n\n      // set the canvas dimensions to match the image\n      myCanvas.width = image.width;\n      myCanvas.height = image.height;\n\n      // draw the image in the canvas\n      ctx.drawImage(image, 0, 0);\n\n      // get the Base64 string of the canvas\n      var base64Image = myCanvas.toDataURL('image/png');\n\n      // create an object that will contain the image href and Base64 image\n      var result = {};\n      result.imageHref = imageHref;\n      result.base64Image = base64Image;\n\n      // resolve the promise with the object\n      deferred.resolve(result);\n    }\n\n    // load the image\n    image.src = imageHref;\n\n    // return the promise\n    return deferred.promise;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        let nodes = [];\n        let links = [];\n        let conceptMapData = studentData.conceptMapData;\n\n        if (conceptMapData != null) {\n          if (conceptMapData.nodes != null) {\n            nodes = conceptMapData.nodes;\n          }\n\n          if (conceptMapData.links != null) {\n            links = conceptMapData.links;\n          }\n        }\n\n        if (componentContent == null) {\n          // the component content was not provided\n\n          if (nodes.length > 0) {\n            // the student has created a node\n            return true;\n          }\n\n          if (links.length > 0) {\n            // the student has created a link\n            return true;\n          }\n        } else {\n          // the component content was provided\n\n          let starterConceptMap = componentContent.starterConceptMap;\n\n          if (starterConceptMap == null || starterConceptMap === '') {\n            // there is no starter concept map\n\n            if (nodes.length > 0) {\n              // the student has created a node\n              return true;\n            }\n\n            if (links.length > 0) {\n              // the student has created a link\n              return true;\n            }\n          } else {\n            /*\n             * there is a starter concept map so we will compare it\n             * with the student concept map\n             */\n            if (this.isStudentConceptMapDifferentThanStarterConceptMap(conceptMapData, starterConceptMap)) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if the student concept map is different than the starter conept map\n   * @param studentConceptMap the student concept map\n   * @param starterConceptMap the authored starter concept map\n   * @return whether the student concept map is different than the starter\n   * concept map\n   */\n  isStudentConceptMapDifferentThanStarterConceptMap(studentConceptMap, starterConceptMap) {\n\n    if (studentConceptMap != null && starterConceptMap != null) {\n\n      let studentNodes = studentConceptMap.nodes;\n      let studentLinks = studentConceptMap.links;\n\n      let starterNodes = starterConceptMap.nodes;\n      let starterLinks = starterConceptMap.links;\n\n      if (studentNodes.length == starterNodes.length) {\n        /*\n         * the student has the same number of nodes as the starter so\n         * we will need to check if the nodes area actually different\n         */\n\n        // loop through all the nodes\n        for (let n = 0; n < studentNodes.length; n++) {\n          let studentNode = studentNodes[n];\n          let starterNode = starterNodes[n];\n\n          if (studentNode != null && starterNode != null) {\n\n            // check if any of the fields have different values\n            if (studentNode.originalId != starterNode.originalId ||\n              studentNode.instanceId != starterNode.instanceId ||\n              studentNode.x != starterNode.x ||\n              studentNode.y != starterNode.y) {\n\n              // the student node is different than the starter node\n              return true;\n            }\n          }\n        }\n      } else {\n        // the student has a different number of nodes\n        return true;\n      }\n\n      if (studentLinks.length == starterLinks.length) {\n        /*\n         * the student has the same number of links as the starter so\n         * we will need to check if the links area actually different\n         */\n\n        // loop through all the links\n        for (let l = 0; l < studentLinks.length; l++) {\n          let studentLink = studentLinks[l];\n          let starterLink = starterLinks[l];\n\n          if (studentLink != null && starterLink != null) {\n\n            // check if any of the fields have different values\n            if (studentLink.label != starterLink.label ||\n              studentLink.originalId != starterLink.originalId ||\n              studentLink.instanceId != starterLink.instanceId ||\n              studentLink.sourceNodeOriginalId != starterLink.sourceNodeOriginalId ||\n              studentLink.sourceNodeInstanceId != starterLink.sourceNodeInstanceId ||\n              studentLink.destinationNodeOriginalId != starterLink.destinationNodeOriginalId ||\n              studentLink.destinationNodeInstanceId != starterLink.destinationNodeInstanceId) {\n\n              // the student link is different than the starter link\n              return true;\n            }\n          }\n        }\n      } else {\n        // the student has a different number of links\n        return true;\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n\n    // get the svg element. this will obtain an array.\n    let svgElement = angular.element('#svg_' + componentState.nodeId + '_' + componentState.componentId);\n\n    if (svgElement != null && svgElement.length > 0) {\n      // get the svg element\n      svgElement = svgElement[0];\n\n      // get the svg element as a string\n      let serializer = new XMLSerializer();\n      let svgString = serializer.serializeToString(svgElement);\n\n      // find all the images in the svg and replace them with Base64 images\n      this.getHrefToBase64ImageReplacements(svgString).then((images) => {\n\n        /*\n         * Loop through all the image objects. Each object contains\n         * an image href and a Base64 image.\n         */\n        for (let i = 0; i < images.length; i++) {\n\n          // get an image object\n          let imagePair = images[i];\n\n          // get the image href e.g. /wise/curriculum/25/assets/Sun.png\n          let imageHref = imagePair.imageHref;\n\n          // get the Base64 image\n          let base64Image = imagePair.base64Image;\n\n          // create a regex to match the image href\n          let imageRegEx = new RegExp(imageHref, 'g');\n\n          /*\n           * replace all the instances of the image href with the\n           * Base64 image\n           */\n          svgString = svgString.replace(imageRegEx, base64Image);\n        }\n\n        // create a canvas to draw the image on\n        let myCanvas = document.createElement('canvas');\n        let ctx = myCanvas.getContext('2d');\n\n        // create an svg blob\n        let svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n        let domURL = self.URL || self.webkitURL || self;\n        let url = domURL.createObjectURL(svg);\n        let image = new Image();\n\n        // the function that is called after the image is fully loaded\n        image.onload = (event) => {\n\n          // get the image that was loaded\n          let image = event.target;\n\n          // set the dimensions of the canvas\n          myCanvas.width = image.width;\n          myCanvas.height = image.height;\n          ctx.drawImage(image, 0, 0);\n\n          // get the canvas as a Base64 string\n          let base64Image = myCanvas.toDataURL('image/png');\n\n          // get the image object\n          let imageObject = this.UtilService.getImageObjectFromBase64String(base64Image, false);\n\n          // add the image to the student assets\n          this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n            deferred.resolve(asset);\n          });\n        };\n\n        // set the src of the image so that the image gets loaded\n        image.src = url;\n      });\n    }\n    return deferred.promise;\n  }\n\n  // end of ConceptMapService class\n}\n\n\n/**\n * A ConceptMapNode that represents a node in the ConceptMap component\n */\nclass ConceptMapNode {\n\n  /**\n   * The constructor for creating ConceptMapNodes\n   * @param ConceptMapService the ConceptMapService\n   * @param draw the svg.js draw object\n   * @param filePath the path of the image file that represents the node\n   * @param label the label of the node\n   * @param x the x position of the node\n   * @param y the y position of the node\n   * @param width the the width of the node\n   * @param height the height of the node\n   */\n  constructor(ConceptMapService, draw, id, originalId, filePath, label, x, y, width, height) {\n\n    // remember the ConceptMapService\n    this.ConceptMapService = ConceptMapService;\n\n    // remember the svg.js draw object so we can draw onto it\n    this.draw = draw;\n\n    // set the id\n    this.id = id;\n\n    // set the original id\n    this.originalId = originalId;\n\n    // remember the file path e.g. \"/wise/curriculum/108/assets/Space.png\"\n    this.filePath = filePath;\n\n    if (this.filePath != null) {\n      // get the file name e.g. \"Space.png\"\n      this.fileName = this.filePath.substring(this.filePath.lastIndexOf('/') + 1);\n    }\n\n    // remember the label\n    this.label = label;\n\n    // create the svg image object\n    this.image = this.draw.image(this.filePath, width, height);\n\n    // remember the width\n    this.width = width;\n\n    // remember the height\n    this.height = height;\n\n    // create a group to contain all the elements of this node\n    this.group = this.draw.group();\n\n    // flag that specifies whether this node is highlighted by the student\n    this.highlighted = false;\n\n    // the color of the delete button\n    this.deleteButtonColor = 'gray';\n\n    // create the connector that students will use to create links\n    this.connector = this.createConnector();\n\n    // create the delete button\n    this.deleteButtonGroup = this.createDeleteButtonGroup();\n\n    // create the text group\n    this.textGroup = this.createTextGroup();\n\n    /*\n     * create the border that displays when the node is highighted or\n     * moused over\n     */\n    this.border = this.createBorder();\n\n    // remember the x and y coordinates\n    this.x = x;\n    this.y = y;\n\n    // initialize the outgoing and incoming links arrays\n    this.outgoingLinks = [];\n    this.incomingLinks = [];\n\n    // add all the elements to the group\n    this.group.add(this.border);\n    this.group.add(this.image);\n    this.group.add(this.connector);\n    this.group.add(this.deleteButtonGroup);\n    this.group.add(this.textGroup);\n\n    // hide the border and delete button\n    this.border.hide();\n    this.deleteButtonGroup.hide();\n\n    // set the position of the group\n    this.group.x(x);\n    this.group.y(y);\n  }\n\n  /**\n   * Get the JSON object representation of the ConceptMapNode\n   * @returns a JSON object containing the data of the ConceptMapNode\n   */\n  toJSONObject() {\n    var jsonObject = {};\n\n    jsonObject.originalId = this.originalId;\n    jsonObject.instanceId = this.id;\n    jsonObject.fileName = this.fileName;\n    jsonObject.filePath = this.filePath;\n    jsonObject.label = this.label;\n    jsonObject.x = this.x;\n    jsonObject.y = this.y;\n    jsonObject.width = this.width;\n    jsonObject.height = this.height;\n\n    jsonObject.outgoingLinks = [];\n    jsonObject.incomingLinks = [];\n\n    // loop through all the outgoing links\n    for (var ol = 0; ol < this.outgoingLinks.length; ol++) {\n      var outgoingLink = this.outgoingLinks[ol];\n\n      var instanceId = outgoingLink.getId();\n      var originalId = outgoingLink.getOriginalId();\n      var label = outgoingLink.getLabel();\n\n      /*\n       * create an object containing the instance id, original id\n       * and label of the link\n       */\n      var tempLinkObject = {};\n      tempLinkObject.originalId = originalId;\n      tempLinkObject.instanceId = instanceId;\n      tempLinkObject.label = label;\n\n      jsonObject.outgoingLinks.push(tempLinkObject);\n    }\n\n    // loop through all the incoming links\n    for (var il = 0; il < this.incomingLinks.length; il++) {\n      var incomingLink = this.incomingLinks[il];\n\n      var instanceId = incomingLink.getId();\n      var originalId = incomingLink.getOriginalId();\n      var label = incomingLink.getLabel();\n\n      /*\n       * create an object containing the instance id, original id\n       * and label of the link\n       */\n      var tempLinkObject = {};\n      tempLinkObject.originalId = originalId;\n      tempLinkObject.instanceId = instanceId;\n      tempLinkObject.label = label;\n\n      jsonObject.incomingLinks.push(tempLinkObject);\n    }\n\n    return jsonObject;\n  }\n\n  /**\n   * Create the border that displays when the node is highlighted or\n   * moused over.\n   * @returns the svg rectangle that represents the border\n   */\n  createBorder() {\n\n    // create the rectangle\n    this.border = this.draw.rect(this.width, this.height);\n    this.border.fill('none');\n    this.border.stroke({ color: '#333333', opacity: 0.2, width: 2 });\n\n    return this.border;\n  }\n\n  /**\n   * Create the connector that students will use to create links from this\n   * node.\n   * @returns the svg circle that represents the connector\n   */\n  createConnector() {\n\n    // create the circle\n    var connectorRadius = 10;\n    this.connector = this.draw.circle();\n    this.connector.radius(connectorRadius);\n    this.connector.cx(this.width / 2);\n    this.connector.cy(0);\n    this.connector.fill({ color: '#cccccc', opacity: 0.4 });\n    this.connector.stroke({ color: '#333333', opacity: 0.2 });\n\n    return this.connector;\n  }\n\n  /**\n   * Create the delete button. The delete button is a group that contains\n   * a circle and an x.\n   * @returns a group that contains a circle and an x\n   */\n  createDeleteButtonGroup() {\n\n    // create a group to contain the circle and x for the delete button\n    this.deleteButtonGroup = this.draw.group();\n\n    // create the delete button circle\n    var deleteButtonRadius = 10;\n    this.deleteButtonCircle = this.draw.circle();\n    this.deleteButtonCircle.radius(deleteButtonRadius);\n    this.deleteButtonCircle.cx(this.width);\n    this.deleteButtonCircle.cy(0);\n    this.deleteButtonCircle.fill({ opacity: 0.0 });\n    this.deleteButtonCircle.stroke({ color: '#333333', opacity: 0.2, width: 2 });\n\n    // create the x by first creating a + and then rotating it 45 degrees\n\n    // get the top location of the +\n    var topX = 0;\n    var topY = 0 - (deleteButtonRadius * 0.7);\n\n    // get the bottom location of the +\n    var bottomX = 0;\n    var bottomY = 0 + (deleteButtonRadius * 0.7);\n\n    // get the left position of the +\n    var leftX = 0 - (deleteButtonRadius * 0.7);\n    var leftY = 0;\n\n    // get the right position of the +\n    var rightX = 0 + (deleteButtonRadius * 0.7);\n    var rightY = 0;\n\n    // draw the +\n    var deleteButtonXPath = 'M' + topX + ',' + topY + 'L' + bottomX + ',' + bottomY + 'M' + leftX + ',' + leftY + 'L' + rightX + ',' + rightY;\n    this.deleteButtonX = this.draw.path(deleteButtonXPath);\n    this.deleteButtonX.stroke({ color: '#333333', opacity: 0.2, width: 2 });\n\n    // rotate the + to turn it into an x\n    this.deleteButtonX.transform({ rotation: 45 });\n\n    // move the x to the upper right of the group\n    this.deleteButtonX.translate(this.width, 0);\n\n    /*\n     * disable pointer events on the x so that clicks will pass through\n     * and hit the circle. this way we only need to set a listener on the\n     * circle for click events.\n     */\n    this.deleteButtonX.attr('pointer-events', 'none');\n\n    // add the circle and the x\n    this.deleteButtonGroup.add(this.deleteButtonCircle);\n    this.deleteButtonGroup.add(this.deleteButtonX);\n\n    return this.deleteButtonGroup;\n  }\n\n  /**\n   * Create the text group\n   * @returns the text group\n   */\n  createTextGroup() {\n\n    // create the group\n    this.textGroup = this.draw.group();\n\n    // create a rectangle to surround the text\n    this.textRect = this.draw.rect(100, 15);\n    this.textRect.attr('fill', 'white');\n    this.textRect.attr('stroke', 'black');\n    this.textRect.attr('x', 0);\n    this.textRect.attr('y', 10);\n    this.textRect.attr('width', 100);\n    this.textRect.attr('height', 20);\n    this.textRect.radius(5);\n\n    // create the text element\n    this.text = this.draw.text(this.label);\n    this.text.attr('x', 5);\n    //this.text.attr('x', 0);\n    this.text.attr('y', 9);\n    this.text.font({\n      family: 'Arial',\n      size: 12\n    });\n\n    // prevent the text from being highlighted when the user drags the mouse\n    this.text.style('user-select:none');\n    this.text.node.setAttribute('user-select', 'none');\n    this.text.node.setAttribute('style', 'user-select:none');\n\n    // add the rectangle and text to the group\n    this.textGroup.add(this.textRect);\n    this.textGroup.add(this.text);\n\n    // add the text group to the link group\n    this.group.add(this.textGroup);\n\n    var width = 0;\n\n    try {\n      // get the width of the bounding box of the text node\n      var textBBox = this.text.node.getBBox();\n\n      if (textBBox.width == 0) {\n        width = this.calculateTextRectWidth(this.label);\n      } else {\n        width = textBBox.width + 10;\n      }\n    } catch(e) {\n      /*\n       * we were unable to get the bounding box (likely because\n       * Firefox threw an error when trying to call getBBox())\n       * so we will calculate the width based on the label text\n       */\n      width = this.calculateTextRectWidth(this.label);\n    }\n\n    this.textRect.attr('width', width);\n\n    // set the position of the text group\n    var x = this.getImageWidth() / 2;\n    var y = this.getImageHeight();\n    this.textGroup.cx(x);\n    this.textGroup.cy(y);\n\n    return this.textGroup;\n  }\n\n  /**\n   * Get the id of the node\n   * @returns the id of the node\n   */\n  getId() {\n    return this.id;\n  }\n\n  /**\n   * Get the original id of the node\n   * @returns the original id of the node\n   */\n  getOriginalId() {\n    return this.originalId;\n  }\n\n  /**\n   * Get the group id of the node\n   * @returns the group id of the node\n   */\n  getGroupId() {\n    var groupId = null;\n\n    if (this.group != null) {\n      // get the id of the group which we will use as the id of the node\n      groupId = this.group.id();\n    }\n\n    return groupId;\n  }\n\n  /**\n   * Get the label\n   * @returns the label of the node\n   */\n  getLabel() {\n    return this.label;\n  }\n\n  /**\n   * Set the label of the node\n   * @param label the label of the node\n   */\n  setLabel(label) {\n\n    // remember the label\n    this.label = label;\n\n    // set the label into the text element\n    this.text.text(label);\n\n    var width = 0;\n\n    try {\n      // get the width of the bounding box of the text node\n      var textBBox = this.text.node.getBBox();\n\n      if (textBBox.width == 0) {\n        width = this.calculateTextRectWidth(this.label);\n      } else {\n        width = textBBox.width + 10;\n      }\n    } catch(e) {\n      /*\n       * we were unable to get the bounding box (likely because\n       * Firefox threw an error when trying to call getBBox())\n       * so we will calculate the width based on the label text\n       */\n      width = this.calculateTextRectWidth(this.label);\n    }\n\n    this.textRect.attr('width', width);\n\n    // set the position of the text group\n    var x = this.getImageWidth() / 2;\n    var y = this.getImageHeight();\n    this.textGroup.cx(x);\n    this.textGroup.cy(y);\n  }\n\n  /**\n   * Get the center x coordinate of the group\n   */\n  cx() {\n    var val = 0;\n\n    if (this.group != null && this.image != null) {\n\n      // get the group\n      var groupX = this.group.x();\n\n      /*\n       * get the center x coordinate of the image relative to the group.\n       * this will be equal to half the width of the image.\n       */\n      var imageCX = this.image.cx();\n\n      /*\n       * get the x coordinate of the center of the group relative to the\n       * svg parent\n       */\n      val = groupX + imageCX;\n    }\n\n    return val;\n  }\n\n  /**\n   * Get the center y coordinate of the group\n   */\n  cy() {\n    var val = 0;\n\n    if (this.group != null && this.image != null) {\n\n      // get the group\n      var groupY = this.group.y();\n\n      /*\n       * get the center y coordinate of the image relative to the group.\n       * this will be equal to half the height of the image.\n       */\n      var imageCY = this.image.cy();\n\n      /*\n       * get the y coordinate of the center of the group relative to the\n       * svg parent\n       */\n      val = groupY + imageCY;\n    }\n\n    return val;\n  }\n\n  /**\n   * Get the center x coordinate of the group\n   */\n  connectorCX() {\n    var val = 0;\n\n    if (this.group != null && this.image != null) {\n\n      // get the group\n      var groupX = this.group.x();\n\n      /*\n       * get the center x coordinate of the image relative to the group.\n       * this will be equal to half the width of the image.\n       */\n      var imageCX = this.connector.cx();\n\n      /*\n       * get the x coordinate of the center of the group relative to the\n       * svg parent\n       */\n      val = groupX + imageCX;\n    }\n\n    return val;\n  }\n\n  /**\n   * Get the center y coordinate of the group\n   */\n  connectorCY() {\n    var val = 0;\n\n    if (this.group != null && this.image != null) {\n\n      // get the group\n      var groupY = this.group.y();\n\n      /*\n       * get the center y coordinate of the image relative to the group.\n       * this will be equal to half the height of the image.\n       */\n      var imageCY = this.connector.cy();\n\n      /*\n       * get the y coordinate of the center of the group relative to the\n       * svg parent\n       */\n      val = groupY + imageCY;\n    }\n\n    return val;\n  }\n\n  /**\n   * Getter/setter for whether the node is highlighted\n   * @parm value (optional) boolean value that sets the highlighted value\n   * @returns whether the node is highlighted\n   */\n  isHighlighted(value) {\n\n    if (value != null) {\n      this.highlighted = value;\n    }\n\n    return this.highlighted;\n  }\n\n  /**\n   * Get the group\n   * @returns the group\n   */\n  getGroup() {\n    return this.group;\n  }\n\n  /**\n   * Show the delete button group\n   */\n  showDeleteButton() {\n    this.deleteButtonGroup.show();\n  }\n\n  /**\n   * Hide the delete button group\n   */\n  hideDeleteButton() {\n    this.deleteButtonGroup.hide();\n  }\n\n  /**\n   * Show the border of the node\n   */\n  showBorder() {\n    this.border.show();\n  }\n\n  /**\n   * Hide the border of the node\n   */\n  hideBorder() {\n    this.border.hide();\n  }\n\n  /**\n   * Get the connector of the node\n   */\n  getConnector() {\n    return this.connector;\n  }\n\n  /**\n   * Get the id of the connector\n   */\n  getConnectorId() {\n    var id = null;\n\n    if (this.connector != null) {\n      id = this.connector.id();\n    }\n\n    return id;\n  }\n\n  /**\n   * Get the x position of the group within the svg\n   * @returns the x position of the group\n   */\n  getGroupX() {\n\n    var x = 0;\n\n    if (this.group != null) {\n      /*\n       * the image is located at 0, 0 within the group so we will obtain\n       * the x location of the group\n       */\n      x = this.group.x();\n    }\n\n    return x;\n  }\n\n  /**\n   * Get the y position of the group within the svg\n   * @returns the y position of the group\n   */\n  getGroupY() {\n    var y = 0;\n\n    if (this.group != null) {\n      /*\n       * the image is located at 0, 0 within the group so we will obtain\n       * the y location of the group\n       */\n      y = this.group.y();\n    }\n\n    return y;\n  }\n\n  /**\n   * Get the x position of the image within the svg\n   * @returns the x position of the image\n   */\n  getImageX() {\n\n    // get the x position of the group\n    var groupX = this.getGroupX();\n\n    // get the x position of the image relative to the group\n    var imageRelativeX = this.image.x();\n\n    // add the values together to get the absolute x position of the image\n    var imageX = groupX + imageRelativeX;\n\n    // get the group\n    var group = this.getGroup();\n\n    // check if the group is shifted\n    if (group != null) {\n      // get the bounding box of the group\n      var bbox = group.bbox();\n\n      if (bbox != null) {\n        // get the x position of the bounding box on the group\n        var bboxX = bbox.x;\n\n        // compensate for the shift of the group\n        imageX = imageX - bboxX;\n      }\n    }\n\n    return imageX;\n  }\n\n  /**\n   * Get the y position of the image within the svg\n   * @returns the y position of the image\n   */\n  getImageY() {\n\n    // get the y position of the group\n    var groupY = this.getGroupY();\n\n    // get the y position of the image relative to the group\n    var imageRelativeY = this.image.y();\n\n    // add the values together to get the absolute y position of the image\n    var imageY = groupY + imageRelativeY;\n\n    // get the group\n    var group = this.getGroup();\n\n    // check if the group is shifted\n    if (group != null) {\n      // get the bounding box of the group\n      var bbox = group.bbox();\n\n      // get the y position of the bounding box on the group\n      var bboxY = bbox.y;\n\n      // compensate for the shift of the group\n      imageY = imageY - bboxY;\n    }\n\n    return imageY;\n  }\n\n  /**\n   * Get the width of the image\n   * @returns the width of th eimage\n   */\n  getImageWidth() {\n    var width = 0;\n\n    if (this.image != null) {\n      width = this.image.width();\n    }\n\n    return width\n  }\n\n  /**\n   * Get the height of the image\n   * @returns the height of the image\n   */\n  getImageHeight() {\n    var height = 0;\n\n    if (this.image != null) {\n      height = this.image.height();\n    }\n\n    return height;\n  }\n\n  /**\n   * Set the mouseover listener for the group\n   * @param nodeMouseOverFunction the function to call when the mouse is over\n   * the group\n   */\n  setNodeMouseOver(nodeMouseOverFunction) {\n\n    if (this.group != null) {\n      this.group.mouseover(nodeMouseOverFunction);\n    }\n  }\n\n  /**\n   * Set the mouseout listener for the group\n   * @param nodeMouseOutFunction the function to call when the mouse moves\n   * out of the group\n   */\n  setNodeMouseOut(nodeMouseOutFunction) {\n\n    if (this.group != null) {\n      this.group.mouseout(nodeMouseOutFunction);\n    }\n  }\n\n  /**\n   * Set the mousedown listener for the group\n   * @param nodeMouseDownFunction the function to call when the mouse is\n   * down on the group\n   */\n  setNodeMouseDown(nodeMouseDownFunction) {\n\n    if (this.group != null) {\n      this.group.mousedown(nodeMouseDownFunction);\n    }\n  }\n\n  /**\n   * Set the mouseup listener for the group\n   * @param nodeMouseUpFunction the function to call when the mouse is\n   * released over the group\n   */\n  setNodeMouseUp(nodeMouseUpFunction) {\n\n    if (this.group != null) {\n      this.group.mouseup(nodeMouseUpFunction);\n    }\n  }\n\n  /**\n   * Set the click listener for the image\n   * @param nodeMouseClickFunction the function to call when the image is\n   * clicked\n   */\n  setNodeMouseClick(nodeMouseClickFunction) {\n\n    if (this.group != null) {\n      this.image.click(nodeMouseClickFunction);\n    }\n  }\n\n  /**\n   * Set the mousedown listener for the connector\n   * @param connectorMouseDownFunction the function to call when the mouse\n   * is down on the connector\n   */\n  setConnectorMouseDown(connectorMouseDownFunction) {\n\n    if (this.connector != null) {\n      this.connector.mousedown(connectorMouseDownFunction);\n    }\n  }\n\n  /**\n   * Set the mousedown listener for the delete button\n   * @param deleteButtonMouseDownFunction the function to call when the mouse\n   * is down on the delete button\n   */\n  setDeleteButtonMouseDown(deleteButtonMouseDownFunction) {\n\n    if (this.deleteButtonCircle != null) {\n      this.deleteButtonCircle.mousedown(deleteButtonMouseDownFunction);\n    }\n  }\n\n  /**\n   * Set the mouseover listener for the delete button\n   * @param deleteButtonMouseOverFunction the function to call when the mouse\n   * is over the delete button\n   */\n  setDeleteButtonMouseOver(deleteButtonMouseOverFunction) {\n\n    if (this.deleteButtonCircle != null) {\n      this.deleteButtonCircle.mouseover(deleteButtonMouseOverFunction);\n    }\n  }\n\n  /**\n   * Set the mouseout listener for the delete button\n   * @param deleteButtonMouseOutFunction the function to call when the mouse\n   * moves out of the delete button\n   */\n  setDeleteButtonMouseOut(deleteButtonMouseOutFunction) {\n\n    if (this.deleteButtonCircle != null) {\n      this.deleteButtonCircle.mouseout(deleteButtonMouseOutFunction);\n    }\n  }\n\n  /**\n   * Set the dragmove listener for the group\n   * @param dragMoveFunction the function to call when the group is dragged\n   */\n  setDragMove(dragMoveFunction) {\n\n    if (this.group != null) {\n\n      // set a listener for when the node is dragged\n      this.group.on('dragmove', dragMoveFunction);\n    }\n  }\n\n  /**\n   * Set the x position\n   * @param x the x position\n   */\n  setX(x) {\n    this.x = x;\n    this.group.x(x);\n  }\n\n  /**\n   * Set the y position\n   * @param y the y position\n   */\n  setY(y) {\n    this.y = y;\n    this.group.y(y);\n  }\n\n  /**\n   * Add an outgoing link to the node\n   * @param outgoingLink a ConceptMapLink object\n   */\n  addOutgoingLink(outgoingLink) {\n    if (outgoingLink != null) {\n      this.outgoingLinks.push(outgoingLink);\n    }\n  }\n\n  /**\n   * Remove an outgoing link from the node\n   * @param outgoingLink a ConceptMapLink object\n   */\n  removeOutgoingLink(outgoingLink) {\n\n    if (outgoingLink != null) {\n\n      // loop through all the outgoing links in this node\n      for (var ol = 0; ol < this.outgoingLinks.length; ol++) {\n\n        // get an outgoing link\n        var tempOutgoingLink = this.outgoingLinks[ol];\n\n        if (outgoingLink == tempOutgoingLink) {\n          // we have found the outgoing link we want to remove\n          this.outgoingLinks.splice(ol, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the outgoing links\n   * @return the outgoing links\n   */\n  getOutgoingLinks() {\n    return this.outgoingLinks;\n  }\n\n  /**\n   * Add an incoming link to the node\n   * @param incomingLink a ConceptMapLink object\n   */\n  addIncomingLink(incomingLink) {\n    if (incomingLink != null) {\n      this.incomingLinks.push(incomingLink);\n    }\n  }\n\n  /**\n   * Remove an incoming link from the node\n   * @param incomingLink a ConceptMapLink object\n   */\n  removeIncomingLink(incomingLink) {\n\n    if (incomingLink != null) {\n\n      // loop through the incoming links in the node\n      for (var il = 0; il < this.incomingLinks.length; il++) {\n\n        // get an incoming link\n        var tempIncomingLink = this.incomingLinks[il];\n\n        if (incomingLink == tempIncomingLink) {\n          // we have found the incoming link we want to remove\n          this.incomingLinks.splice(il, 1);\n          break;\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the incoming links\n   * @return the incoming links\n   */\n  getIncomingLinks() {\n    return this.incomingLinks;\n  }\n\n  /**\n   * The function that is called when the node is moved\n   * @param event\n   */\n  dragMove(event) {\n\n    // get the group\n    var group = this.getGroup();\n\n    // get the x and y coordinates of the center of the image\n    var cx = this.cx();\n    var cy = this.cy();\n\n    // update the local x, y values of the node for bookkeeping\n    this.x = group.x();\n    this.y = group.y();\n\n    // get the outgoing links and incoming links\n    var outgoingLinks = this.outgoingLinks;\n    var incomingLinks = this.incomingLinks;\n\n    if (outgoingLinks != null) {\n\n      // loop through all the outgoing links\n      for (var ol = 0; ol < outgoingLinks.length; ol++) {\n\n        // get an outgoing link\n        var outgoingLink = outgoingLinks[ol];\n\n        // update the x, y coordinate of the tail of the link\n        var x1 = cx;\n        var y1 = cy;\n\n        // calculate the nearest point to the destination node\n        var nearestPoint = outgoingLink.getNearestPointToDestinationNode(x1, y1);\n        x2 = nearestPoint.x;\n        y2 = nearestPoint.y;\n\n        // update the coordinates of the link\n        outgoingLink.updateCoordinates(x1, y1, x2, y2);\n      }\n\n      // loop through all the incoming links\n      for (var il = 0; il < incomingLinks.length; il++) {\n\n        // get an incoming link\n        var incomingLink = incomingLinks[il];\n\n        // reuse the coordinates of the tail of the link\n        var x1 = incomingLink.x1();\n        var y1 = incomingLink.y1();\n\n        // calculate the nearest point to the source node\n        var nearestPoint = incomingLink.getNearestPointToDestinationNode(x1, y1);\n        var x2 = nearestPoint.x;\n        var y2 = nearestPoint.y;\n\n        // update the coordinates of the link\n        incomingLink.updateCoordinates(x1, y1, x2, y2);\n      }\n    }\n\n    if (this.controller != null) {\n      // handle the student data changing\n      this.controller.studentDataChanged();\n    }\n\n    // move the group to the front so that it shows up above other elements\n    group.front();\n  }\n\n  /**\n   * Remove the node from the svg\n   */\n  remove() {\n\n    // make the group not draggable\n    this.group.draggable(false);\n\n    // remove the group\n    this.group.remove();\n\n    // remove the image\n    this.image.remove();\n\n    // remove the connector\n    this.connector.remove();\n\n    // remove the delete button\n    this.deleteButtonCircle.remove();\n    this.deleteButtonX.remove();\n    this.deleteButtonGroup.remove();\n\n    // loop through all the outgoing links\n    for (var ol = 0; ol < this.outgoingLinks.length; ol++) {\n\n      // get an outgoing link\n      var outgoingLink = this.outgoingLinks[ol];\n\n      if (outgoingLink != null) {\n        // remove the outgoing link\n        outgoingLink.remove();\n\n        /*\n         * move the counter back one because calling outgoingLink.remove()\n         * has removed the outgoingLink from the outgoingLinks array\n         */\n        ol--;\n      }\n    }\n\n    // loop through all the incoming links\n    for (var il = 0; il < this.incomingLinks.length; il++) {\n\n      // get an incoming link\n      var incomingLink = this.incomingLinks[il];\n\n      if (incomingLink != null) {\n        // remove the incoming link\n        incomingLink.remove();\n\n        /*\n         * move the counter back one because calling incomingLink.remove()\n         * has removed the incomingLink from the incomingLinks array\n         */\n        il--;\n      }\n    }\n  }\n\n  /**\n   * Get the links from this node to a given destination node\n   * @param destinationNode the destination node\n   */\n  getLinksToDestination(destinationNode) {\n\n    var linksToDestination = [];\n\n    // loop through all the outgoing links\n    for (var ol = 0; ol < this.outgoingLinks.length; ol++) {\n\n      // get an outgoing link\n      var outgoingLink = this.outgoingLinks[ol];\n\n      if (outgoingLink != null) {\n        if (destinationNode == outgoingLink.destinationNode) {\n          /*\n           * the destination of the link is the destination we are\n           * looking for\n           */\n          linksToDestination.push(outgoingLink);\n        }\n      }\n    }\n\n    return linksToDestination;\n  }\n\n  /**\n   * Calculate the width that the text rectangle should be set to\n   * @param labelText the label text that will be displayed in the rectangle\n   * @return the width that the text rectangle should be set to\n   */\n  calculateTextRectWidth(labelText) {\n    var width = 0;\n\n    if (labelText != null) {\n      width = (labelText.length * 6) + 10;\n    }\n\n    return width;\n  }\n\n  // end of ConceptMapNode class\n}\n\n/**\n * A ConceptMapLink that represents a link in the ConceptMap component\n */\nclass ConceptMapLink {\n\n  /**\n   * The constructor to create a ConceptMapLink object\n   * @param ConceptMapService the ConceptMapService\n   * @param draw the svg.js draw object\n   * @param id the instance id of the link\n   * @param originalId the original authored id of the link\n   * @param sourceNode the source ConceptMapNode\n   * @param destinationNode the destination ConceptMapNode\n   * @param label the text label\n   * @param color the color of the link\n   * @param curvature the curvature of the link\n   * @param startCurveUp whether the start of the link curves up\n   * @param endCurveUp whether the end of the link curves up\n   */\n  constructor(ConceptMapService, draw, id, originalId, sourceNode, destinationNode, label, color, curvature, startCurveUp, endCurveUp) {\n\n    // remember the ConceptMapService\n    this.ConceptMapService = ConceptMapService;\n\n    // remember the svg.js draw object\n    this.draw = draw;\n\n    // set the id\n    this.id = id;\n\n    // set the original id\n    this.originalId = originalId;\n\n    // the arrow head of the link\n    this.head = null;\n\n    // the line of the link\n    this.path = null;\n\n    // set the color of the link\n    this.color = color;\n\n    if (this.color == null) {\n      // if no color is specified, use a default color\n      this.color = 'blue';\n    }\n\n    // whether the link is highlighted\n    this.highlighted = false;\n\n    // create a group to contain the path and head\n    this.group = this.draw.group();\n\n    // where to place the text of the link along the line\n    this.textPercentageLocationOnLink = 0.6\n\n    // remember the source node\n    this.sourceNode = sourceNode;\n\n    /*\n     * used to remember the destination node later after the destination\n     * node has been chosen\n     */\n    this.destinationNode = destinationNode;\n\n    // remember the curvature\n    this.curvature = curvature;\n\n    if (this.curvature == null) {\n      this.curvature = 0.5;\n    }\n\n    // set whether the link curves up or down\n    this.startCurveUp = startCurveUp;\n    this.endCurveUp = endCurveUp;\n\n    if (this.startCurveUp == null || this.endCurveUp == null) {\n      /*\n       * start and end curve up have not been specified so we will set\n       * it at random\n       */\n\n      // choose a random integer 0 or 1\n      var randInt = Math.floor(Math.random() * 2);\n\n      if (randInt == 0) {\n        // set the link to curve down\n        this.startCurveUp = false;\n        this.endCurveUp = false;\n      } else {\n        // set the link to curve up\n        this.startCurveUp = true;\n        this.endCurveUp = true;\n      }\n    }\n\n    // create a curved link\n    this.curvedLink = true;\n\n    // initialize the coordinates of both ends of the link\n    var x1 = this.sourceNode.cx();\n    var y1 = this.sourceNode.cy();\n    var x2 = x1;\n    var y2 = y1;\n\n    if (this.destinationNode != null) {\n\n      /*\n       * get the nearest point from the center of the source node to the\n       * destination node along the perimeter of the destination node\n       * image\n       */\n      var nearestPoint = this.getNearestPointToDestinationNode(x1, y1);\n      x2 = nearestPoint.x;\n      y2 = nearestPoint.y;\n\n      // connect the link to the nodes\n      this.connectLinkToNodes();\n    }\n\n    if (this.curvedLink) {\n      // create a curved link\n\n      // calculate the curved line in svg\n      var arrowPathArraysObject = this.calculateCurvedLine(x1, y1, x2, y2);\n\n      // get the line\n      var tail = arrowPathArraysObject[0];\n\n      // get the arrow head\n      var head = arrowPathArraysObject[1];\n\n      // draw the head and tail\n      this.head = this.draw.path(head.toString());\n      this.path = this.draw.path(tail.toString());\n    } else {\n      // create a straight line\n      this.path = this.draw.path('M' + x1 + ',' + y1 + ' L' + x2 + ',' + y2);\n    }\n\n    // set the style of the link\n    this.path.attr('stroke', this.color);\n    this.path.attr('stroke-width', 3);\n    this.path.attr('fill', 'transparent');\n    this.head.attr('stroke', this.color);\n    this.head.attr('fill', this.color);\n    this.head.attr('pointer-events', 'none');\n\n    /*\n     * remember the x and y coordinates of the source and destination\n     * so that we can look them up easily later\n     */\n    this.path.attr('x1', x1);\n    this.path.attr('y1', y1);\n    this.path.attr('x2', x2);\n    this.path.attr('y2', y2);\n\n    // add the tail and head to the group\n    this.group.add(this.path);\n    this.group.add(this.head);\n\n    // create the text group for the link\n    this.createTextGroup();\n\n    // text that describes the type of link chosen by the student\n    this.setLabel(label);\n\n    if (this.label == null || this.label == '') {\n      // there is no label so we will hide the text group\n      this.hideTextGroup();\n    } else {\n      // there is a label so we will show the text group\n      this.showTextGroup();\n    }\n\n    // create the delete button group\n    this.createDeleteButtonGroup();\n  }\n\n  /**\n   * Get the JSON object representation of the ConceptMapLink\n   * @returns a JSON object containing the data of the ConceptMapLink\n   */\n  toJSONObject() {\n    var jsonObject = {};\n\n    jsonObject.originalId = this.originalId;\n    jsonObject.instanceId = this.id;\n    jsonObject.color = this.color;\n    jsonObject.label = this.label;\n    jsonObject.curvature = this.curvature;\n    jsonObject.startCurveUp = this.startCurveUp;\n    jsonObject.endCurveUp = this.endCurveUp;\n    jsonObject.sourceNodeOriginalId = this.sourceNode.getOriginalId();\n    jsonObject.sourceNodeInstanceId = this.sourceNode.getId();\n    jsonObject.sourceNodeLabel = this.sourceNode.getLabel();\n    jsonObject.destinationNodeOriginalId = this.destinationNode.getOriginalId();\n    jsonObject.destinationNodeInstanceId = this.destinationNode.getId();\n    jsonObject.destinationNodeLabel = this.destinationNode.getLabel();\n\n    return jsonObject;\n  }\n\n  /**\n   * Get the id of the link\n   * @returns the id of the link\n   */\n  getId() {\n    return this.id;\n  }\n\n  /**\n   * Get the original id of the node\n   * @returns the original id of the node\n   */\n  getOriginalId() {\n    return this.originalId;\n  }\n\n  /**\n   * Get the id of the group\n   * @returns the id of the group\n   */\n  getGroupId() {\n    return this.group.id();\n  }\n\n  /**\n   * Get the x1 value\n   * @returns the x coordinate of the source of the link\n   */\n  x1() {\n    return this.path.attr('x1');\n  }\n\n  /**\n   * Get the y1 value\n   * @returns the y coordinate of the source of the link\n   */\n  y1() {\n    return this.path.attr('y1');\n  }\n\n  /**\n   * Get the x2 value\n   * @returns the x coordinate of the destination of the link\n   */\n  x2() {\n    return this.path.attr('x2');\n  }\n\n  /**\n   * Get the y2 value\n   * @returns the y coordinate of the destination of the link\n   */\n  y2() {\n    return this.path.attr('y2');\n  }\n\n  /**\n   * Set the original id\n   * @param originalId the original id\n   */\n  setOriginalId(originalId) {\n    this.originalId = originalId;\n  }\n\n  /**\n   * Get the label\n   * @returns the label\n   */\n  getLabel() {\n    return this.label;\n  }\n\n  /**\n   * Getter/setter for the highlighted value\n   * @param value (optional) the highlighted value\n   * @returns whether the link is highlighted\n   */\n  isHighlighted(value) {\n\n    if (value != null) {\n      this.highlighted = value;\n    }\n\n    return this.highlighted;\n  }\n\n  /**\n   * Update the coordinates of the link\n   * @param x1 (optional) the x position of the source\n   * @param y1 (optional) the y position of the source\n   * @param x2 (optional) the x position of the destination\n   * @param y2 (optional) the y position of the destination\n   * @param isDragging whether the link is currently being dragged\n   */\n  updateCoordinates(x1, y1, x2, y2, isDragging) {\n    var array = this.path.array();\n\n    if (this.curvedLink) {\n      // draw a curved link\n\n      if (x1 == null) {\n        /*\n         * the x1 parameter was not provided so we will reuse the\n         * existing value\n         */\n        x1 = this.path.attr('x1');\n      }\n\n      if (y1 == null) {\n        /*\n         * the y1 parameter was not provided so we will reuse the\n         * existing value\n         */\n        y1 = this.path.attr('y1');\n      }\n\n      if (x2 == null) {\n        /*\n         * the x2 parameter was not provided so we will reuse the\n         * existing value\n         */\n        x2 = this.path.attr('x2');\n      }\n\n      if (y2 == null) {\n        /*\n         * the y2 parameter was not provided so we will reuse the\n         * existing value\n         */\n        y2 = this.path.attr('y2');\n      }\n\n      // calculate the line\n      var arrowPathArraysObject = this.calculateCurvedLine(x1, y1, x2, y2, isDragging);\n\n      // get the svg tail\n      var tail = arrowPathArraysObject[0];\n\n      // get the svg head\n      var head = arrowPathArraysObject[1];\n\n      // re-plot the head and path\n      this.head.plot(head.toString());\n      this.path.plot(tail.toString());\n    } else {\n      // draw a straight line\n\n      if (x1 == null) {\n        /*\n         * the x1 parameter was not provided so we will reuse the\n         * existing value\n         */\n        x1 = this.path.attr('x1');\n      }\n\n      if (y1 == null) {\n        /*\n         * the y1 parameter was not provided so we will reuse the\n         * existing value\n         */\n        y1 = this.path.attr('y1');\n      }\n\n      if (x2 == null) {\n        /*\n         * the x2 parameter was not provided so we will reuse the\n         * existing value\n         */\n        x2 = this.path.attr('x2');\n      }\n\n      if (y2 == null) {\n        /*\n         * the y2 parameter was not provided so we will reuse the\n         * existing value\n         */\n        y2 = this.path.attr('y2');\n      }\n\n      // re-plot the line\n      this.path.plot('M' + x1 + ',' + y1 + ' L' + x2 + ',' + y2);\n    }\n\n    // update the coordinate values\n    this.path.attr('x1', x1);\n    this.path.attr('y1', y1);\n    this.path.attr('x2', x2);\n    this.path.attr('y2', y2);\n\n    if (this.deleteButtonGroup != null) {\n      // update the location of the delete button\n      var deleteButtonLocation = this.getDeleteButtonLocation();\n      this.deleteButtonGroup.x(deleteButtonLocation.x);\n      this.deleteButtonGroup.y(deleteButtonLocation.y);\n    }\n\n    if (this.textGroup != null) {\n      // update the location of the text group\n\n      // get the length of the line\n      var totalLength = this.path.node.getTotalLength();\n\n      // get the coordinate of a point somewhere in the middel of the line\n      var midPoint = this.path.node.getPointAtLength(totalLength * this.textPercentageLocationOnLink);\n\n      this.textGroup.cx(midPoint.x);\n      this.textGroup.cy(midPoint.y);\n    }\n  }\n\n  /**\n   * Calculate the curved line\n   * @param x1 the x coordinate of the source\n   * @param y1 the y coordinate of the source\n   * @param x2 the x coordinate of the destination\n   * @param y2 the y coordinate of the destination\n   * @param isDragging whether the line is currently being dragged\n   * @returns an array that contains the svg objects for the arrow head and line\n   */\n  calculateCurvedLine(x1, y1, x2, y2, isDragging) {\n\n    var startx = x1;\n    var starty = y1;\n    var endx = x2;\n    var endy = y2;\n    var startCurveUp = true;\n    var endCurveUp = true;\n    var len = 15;\n    var angle = 45;\n    var curvature = 0.5;\n    var nodeRadius = 10;\n\n    // set the amount of curvature of the line\n    curvature = this.curvature;\n\n    // whether the link should curve up or down\n    startCurveUp = this.startCurveUp;\n    endCurveUp = this.endCurveUp;\n\n    // calculate the svg objects for the arrow head and line\n    var arrowPathArraysObject = this.ConceptMapService.arrowPathArrays(startx,starty,endx,endy,startCurveUp,endCurveUp,len,angle,curvature,nodeRadius);\n\n    return arrowPathArraysObject;\n  }\n\n  /**\n   * Set the destination node\n   * @param destinationNode the destination ConceptMapNode object\n   */\n  setDestination(destinationNode) {\n\n    if (destinationNode != null) {\n\n      // get x and y of the tail\n      var x1 = this.path.attr('x1');\n      var y1 = this.path.attr('y1');\n\n      // remember the destination node\n      this.destinationNode = destinationNode;\n\n      /*\n       * check if there are any links with that have the same source,\n       * destination, and direction. if there is a link that has the\n       * same source, destination, and direction, we will try to use\n       * a different direction that hasn't already been used. if all\n       * directions have already been used, we will use the original\n       * direction the user specified. there are three link directions,\n       * up, straight, and down.\n       *    ___\n       * up  /   \\\n       *  o  o\n       *\n       * straight o------o\n       *\n       *    o   o\n       * down \\__/\n       */\n\n      var directionAlreadyUsed = false;\n      var direction = '';\n\n      if (this.curvature == 0) {\n        // the user has created the curve to be straight\n        direction = 'straight';\n      } else if (this.startCurveUp && this.endCurveUp) {\n        // the user has created the curve that starts by pointing up\n        direction = 'up';\n      } else if (!this.startCurveUp && !this.endCurveUp) {\n        // the user has created the curve that starts by pointing down\n        direction = 'down';\n      }\n\n      // get all the links that have the same source and destination\n      var parallelLinks = this.sourceNode.getLinksToDestination(destinationNode);\n\n      var usedDirections = [];\n\n      // loop through all the links that have the same source and destination\n      for (var p = 0; p < parallelLinks.length; p++) {\n        var parallelLink = parallelLinks[p];\n\n        if (parallelLink != null) {\n\n          var curvature = parallelLink.curvature;\n          var startCurveUp = parallelLink.startCurveUp;\n          var endCurveUp = parallelLink.endCurveUp;\n\n          var tempDirection = '';\n\n          if (curvature == 0) {\n            // the other link is straight\n            tempDirection = 'straight';\n          } else if (startCurveUp && endCurveUp) {\n            // the other link points up\n            tempDirection = 'up';\n          } else if (!startCurveUp && !endCurveUp) {\n            // the other link points down\n            tempDirection = 'down'\n          }\n\n          if (direction == tempDirection) {\n            /*\n             * the direction is the same as the direction the user\n             * has specified\n             */\n            directionAlreadyUsed = true;\n          }\n\n          // keep track of the directions that were used\n          usedDirections.push(tempDirection);\n        }\n      }\n\n      if (directionAlreadyUsed) {\n        /*\n         * the direction the user specified is already used so we will\n         * try to find a direction that hasn't been used\n         */\n\n        if (usedDirections.indexOf('up') == -1) {\n          /*\n           * we have not used the up direction yet so we will make\n           * the link point up\n           */\n          this.curvature = 0.5;\n          this.startCurveUp = true;\n          this.endCurveUp = true;\n        } else if (usedDirections.indexOf('straight') == -1) {\n          /*\n           * we have not used the straight direction yet so we will\n           * make the link point straight\n           */\n          this.curvature = 0.0;\n          this.startCurveUp = true;\n          this.endCurveUp = true;\n        } else if (usedDirections.indexOf('down') == -1) {\n          /*\n           * we have not used the down direction yet so we will make\n           * the link point down\n           */\n          this.curvature = 0.5;\n          this.startCurveUp = false;\n          this.endCurveUp = false;\n        }\n      }\n\n      /*\n       * get the nearest point from the center of the source node to the\n       * destination node along the perimeter of the destination node\n       * image\n       */\n      var nearestPoint = this.getNearestPointToDestinationNode(x1, y1);\n      var x2 = nearestPoint.x;\n      var y2 = nearestPoint.y;\n\n      // update the coordinates of the link\n      var isDragging = false;\n      this.updateCoordinates(x1, y1, x2, y2, isDragging);\n\n      // connect the link to the nodes\n      this.connectLinkToNodes();\n\n      // hide the delete button\n      this.hideDeleteButton();\n    }\n  }\n\n  /**\n   * Get the nearest point to the destination node from a given x, y point\n   * @param x the x value of the source point\n   * @param y the y value of the source point\n   * @returns an object containing an x and y field\n   */\n  getNearestPointToDestinationNode(x, y) {\n\n    // get the coordinates of the upper left corner of the image\n    var rectMinX = this.destinationNode.getImageX();\n    var rectMinY = this.destinationNode.getImageY();\n\n    /*\n     * add padding of 25 pixels to resolve the problem of the arrow head\n     * being placed behind the destination image\n     */\n    rectMinY = rectMinY - 25;\n\n    // get the width and height of the image\n    var width = this.destinationNode.getImageWidth();\n    var height = this.destinationNode.getImageHeight();\n\n    // compensate for the 25 pixel padding that we added above\n    height = height + 25;\n\n    /*\n    var destinationNodeGroup = this.destinationNode.getGroup();\n    var destinationNodeGroupBBox = destinationNodeGroup.bbox();\n\n    rectMinX = this.destinationNode.getGroupX();\n    rectMinY = this.destinationNode.getGroupY();\n\n    width = destinationNodeGroupBBox.width;\n    height = destinationNodeGroupBBox.height;\n    */\n\n    if (x == null && y == null) {\n      // get the coordinates of the source if x and y were not provided\n      x = this.path.attr('x1');\n      y = this.path.attr('y1');\n    }\n\n    /*\n     * find the nearest point from the source to anywhere along the\n     * rectangular perimeter of the destination image\n     */\n    var point = this.getNearestPointInPerimeter(rectMinX, rectMinY, width, height, x, y);\n\n    return point;\n  }\n\n  /**\n   * Get the nearest point on a rectangle from a source point\n   * @param l the upper left x value of the rectangle\n   * @param t the upper left y value of the rectangle\n   * @param w the width of the rectangle\n   * @param h the height of the rectangle\n   * @param x the source point x value\n   * @param y the source point y value\n   * @returns the point on the rectangle that is closest to the\n   */\n  getNearestPointInPerimeter(l, t, w, h, x, y) {\n    var r = l + w;\n    var b = t + h;\n\n    var x = this.clamp(x, l , r);\n    var y = this.clamp(y, t, b);\n\n    var dl = Math.abs(x - l);\n    var dr = Math.abs(x - r);\n    var dt = Math.abs(y - t);\n    var db = Math.abs(y - b);\n\n    var m = Math.min(dl, dr, dt, db);\n\n    var point = {};\n\n    if (m == dt) {\n      point.x = x;\n      point.y = t;\n    } else if (m == db) {\n      point.x = x;\n      point.y = b;\n    } else if (m == dl) {\n      point.x = l;\n      point.y = y;\n    } else {\n      point.x = r;\n      point.y = y;\n    }\n\n    return point;\n  }\n\n  /**\n   * Helper function for getNearestPointInPerimeter\n   */\n  clamp(x, lower, upper) {\n    return Math.max(lower, Math.min(upper, x));\n  }\n\n  /**\n   * Set the color of the link\n   * @param color the color\n   */\n  setColor(color) {\n\n    if (color != null) {\n      // set the color styling\n      this.color = color;\n      this.path.attr('stroke', this.color);\n      this.head.attr('stroke', this.color);\n      this.head.attr('fill', this.color);\n      this.deleteButton.attr('stroke', this.color);\n      this.deleteButtonX.attr('stroke', this.color);\n    }\n  }\n\n  /**\n   * Set the label\n   * @param label the text label\n   */\n  setLabel(label) {\n\n    if (label != null) {\n\n      // remember the label\n      this.label = label;\n\n      // set the text into the text element\n      this.text.text(label);\n\n      // show the text group now that it has a label\n      this.showTextGroup();\n\n      // reset the width to adjust to the new text length\n      var width = 0;\n\n      try {\n        // get the width of the bounding box of the text node\n        var textBBox = this.text.node.getBBox();\n\n        if (textBBox.width == 0) {\n          width = this.calculateTextRectWidth(this.label);\n        } else {\n          width = textBBox.width + 10;\n        }\n      } catch(e) {\n        /*\n         * we were unable to get the bounding box (likely because\n         * Firefox threw an error when trying to call getBBox())\n         * so we will calculate the width based on the label text\n         */\n        width = this.calculateTextRectWidth(this.label);\n      }\n\n      this.textRect.attr('width', width);\n\n      // recalculate the position of the svg text object\n      var totalLength = this.path.node.getTotalLength();\n      var midPoint = this.path.node.getPointAtLength(totalLength * this.textPercentageLocationOnLink);\n      this.textGroup.cx(midPoint.x);\n      this.textGroup.cy(midPoint.y);\n    }\n  }\n\n  /**\n   * Connect a link the its source and destination nodes\n   */\n  connectLinkToNodes() {\n\n    if (this.sourceNode != null && this.destinationNode != null) {\n\n      // add the link to the outgoing links of its source node\n      this.sourceNode.addOutgoingLink(this);\n\n      // add the link to the incoming links of its destination node\n      this.destinationNode.addIncomingLink(this);\n    }\n  }\n\n  /**\n   * Create the delete button for the link\n   */\n  createDeleteButtonGroup() {\n    // create a group to contain the elements of the delete button\n    this.deleteButtonGroup = this.draw.group();\n\n    /*\n     * create an invisible circle that is placed behind the delete button\n     * and has a larger radius than the delete button. this is used for\n     * mouse over purposes so that we can keep the delete button visible\n     * when the mouse is around the area of the delete button\n     */\n    var invisibleCircleRadius = 30;\n    this.invisibleCircle = this.draw.circle();\n    this.invisibleCircle.radius(invisibleCircleRadius);\n    this.invisibleCircle.fill({ opacity: 0.0});\n\n    // create the delete button circle\n    var deleteButtonRadius = 10;\n    this.deleteButton = this.draw.circle();\n    this.deleteButton.radius(deleteButtonRadius);\n    this.deleteButton.fill({ opacity: 0.0 });\n    this.deleteButton.stroke({ color: this.color, opacity: 1.0, width: 2 });\n\n    /*\n     * create the x part of the delete button by creating a + and then\n     * rotating it 45 degrees\n     */\n\n    // get the coordinate of the center of the delete button\n    var deleteButtonMidpointX = this.deleteButton.cx();\n    var deleteButtonMidpointY = this.deleteButton.cy();\n\n    // get the coordinates of the top of the +\n    var topX = deleteButtonMidpointX;\n    var topY = deleteButtonMidpointY - (deleteButtonRadius * 0.7);\n\n    // get the coordinates of the bottom of the +\n    var bottomX = deleteButtonMidpointX;\n    var bottomY = deleteButtonMidpointY + (deleteButtonRadius * 0.7);\n\n    // get the coordinates of the left of the +\n    var leftX = deleteButtonMidpointX - (deleteButtonRadius * 0.7);\n    var leftY = deleteButtonMidpointY;\n\n    // get the coordinates of the right of the +\n    var rightX = deleteButtonMidpointX + (deleteButtonRadius * 0.7);\n    var rightY = deleteButtonMidpointY;\n\n    // create the path for the +\n    var deleteButtonXPath = 'M' + topX + ',' + topY + 'L' + bottomX + ',' + bottomY + 'M' + leftX + ',' + leftY + 'L' + rightX + ',' + rightY;\n\n    // draw the path\n    this.deleteButtonX = this.draw.path(deleteButtonXPath);\n    this.deleteButtonX.stroke({ color: this.color, opacity: 1.0, width: 2 });\n\n    /// rotate the + to create the x\n    this.deleteButtonX.rotate(45);\n\n    /*\n     * disable pointer events on the x so that we only need to set a\n     * mouse listener on the circle\n     */\n    this.deleteButtonX.attr('pointer-events', 'none');\n\n    // add the invisible circle, regular circle, and x to the group\n    this.deleteButtonGroup.add(this.invisibleCircle);\n    this.deleteButtonGroup.add(this.deleteButton);\n    this.deleteButtonGroup.add(this.deleteButtonX);\n\n    // set the location of the delete button group\n    var location = this.getDeleteButtonLocation();\n    var x = location.x;\n    var y = location.y;\n    this.deleteButtonGroup.x(x);\n    this.deleteButtonGroup.y(y);\n\n    // set the listener for when the mouse is over the group\n    this.deleteButtonGroup.mouseover((event) => {\n      this.deleteButtonGroupMouseOver(event);\n    });\n\n    // set the listener for when the mouse moves out of the group\n    this.deleteButtonGroup.mouseout((event) => {\n      this.deleteButtonGroupMouseOut(event);\n    });\n\n    // add the delete button group to the link group\n    this.group.add(this.deleteButtonGroup);\n\n    /*\n     * hide the delete button. we only need to show the delete button\n     * when the link is active.\n     */\n    this.deleteButtonGroup.hide();\n  }\n\n  /**\n   * Called when the mouse is over the delete button group\n   * @param event the mouseover event\n   */\n  deleteButtonGroupMouseOver(event) {\n    // show the delete button\n    this.showDeleteButton();\n  }\n\n  /**\n   * Called when the mouse leaves the delete button group\n   * @param event the mouseout event\n   */\n  deleteButtonGroupMouseOut(event) {\n    if (!this.highlighted) {\n      // the link is not highlighted so we will hide the delete button\n      this.hideDeleteButton();\n    }\n  }\n\n  /**\n   * Called when the delete button is clicked\n   * @param deleteButtonClickedFunction the function to call when the delete\n   * button is clicked\n   */\n  setDeleteButtonClicked(deleteButtonClickedFunction) {\n    // listen for the click event on the delete button to call the function\n    this.deleteButton.click(deleteButtonClickedFunction);\n  }\n\n  /**\n   * Called when the mouse is clicked down on the group\n   * @param linkMouseDownFunction the function to call when the mouse is\n   * clicked down on the group\n   */\n  setLinkMouseDown(linkMouseDownFunction) {\n\n    if (this.group != null) {\n      /*\n       * listen for the mousedown event on the group to call\n       * the function\n       */\n      this.group.mousedown(linkMouseDownFunction);\n    }\n  }\n\n  /**\n   * Called when the mouse is clicked down on the link text group\n   * @param linkTextMouseDownFunction the function to call when the mouse is\n   * clicked down on the link text group\n   */\n  setLinkTextMouseDown(linkTextMouseDownFunction) {\n\n    if (this.textGroup != null) {\n      /*\n       * listen for the mousedown event on the link text group to call\n       * the function\n       */\n      this.textGroup.mousedown(linkTextMouseDownFunction);\n    }\n  }\n\n  /**\n   * Called when the mouse is over the group\n   * @param linkMouseOverFunction the function to call when the mouse is over\n   * the group\n   */\n  setLinkMouseOver(linkMouseOverFunction) {\n    if (this.group != null) {\n      // listen for the mouseover event on the group to call the function\n      this.group.mouseover(linkMouseOverFunction);\n    }\n  }\n\n  /**\n   * Called when the mouse leaves the group\n   * @param linkMouseOutFunction the function to call when the mouse leaves\n   * the group\n   */\n  setLinkMouseOut(linkMouseOutFunction) {\n    if (this.group != null) {\n      // listen for the mouseout event on the group to call the function\n      this.group.mouseout(linkMouseOutFunction);\n    }\n  }\n\n  /**\n  * Calculate the location of the delete button for the link\n  *\n  * Note: This function and the associated functions that are called by this\n  * function are taken from the Concord MySystem github project.\n  * https://github.com/concord-consortium/mysystem_sc\n  * The code is found in the _setRemoveButtonLocation function in the link.js file.\n  * mysystem_sc/apps/my_system/views/link.js\n  */\n  getDeleteButtonLocation() {\n    //var line = raphaelObject.items[2];\n\n    var line = this.path.node;\n    var distanceAlongLine = 35;\n    var distanceAlongNormal = 18;\n    var len, p1, p2, scale, dx, dy, x, y, occluded;\n\n    /*\n    var link = this.get('content');\n    if (!link.isComplete()) return;\n    if (line.attr('path').length < 1) return;   // this can happen after our content is destroyed\n    */\n\n    len = line.getTotalLength();\n    p2  = line.getPointAtLength(len);\n\n    if (len > 50) {\n      p1 = line.getPointAtLength(len - distanceAlongLine);\n\n      dx = p2.x - p1.x;\n      dy = p2.y - p1.y;\n      scale = distanceAlongNormal / distanceAlongLine * (dx > 0 ? 1 : -1);\n\n      x = p1.x + scale * dy;\n      y = p1.y - scale * dx;\n      //occluded = NO;\n    }\n    else {\n      x = 0;\n      y = 0;\n      //occluded = YES;\n    }\n\n    /*\n    this.set('removeButtonX', x);\n    this.set('removeButtonY', y);\n    this.set('isRemoveButtonOccluded', occluded);\n    */\n\n    var location = {};\n    location.x = x;\n    location.y = y;\n\n    return location;\n  }\n\n  /**\n   * Show the delete button\n   */\n  showDeleteButton() {\n    if (this.deleteButtonGroup != null) {\n      this.deleteButtonGroup.show();\n    }\n  }\n\n  /**\n   * Hide the delete button\n   */\n  hideDeleteButton() {\n    if (this.deleteButtonGroup != null) {\n      this.deleteButtonGroup.hide();\n    }\n  }\n\n  /**\n   * Create the text group\n   * @returns the text group\n   */\n  createTextGroup() {\n\n    // create the group\n    this.textGroup = this.draw.group();\n\n    // create a rectangle to surround the text\n    this.textRect = this.draw.rect(100, 15);\n    this.textRect.attr('fill', 'white');\n    this.textRect.attr('stroke', 'black');\n    this.textRect.attr('x', 0);\n    this.textRect.attr('y', 10);\n    this.textRect.attr('width', 100);\n    this.textRect.attr('height', 20);\n    this.textRect.radius(5);\n\n    var label = '';\n\n    // create the text element\n    this.text = this.draw.text(label);\n    this.text.attr('x', 5);\n    this.text.attr('y', 9);\n    this.text.font({\n      family: 'Arial',\n      size: 12\n    });\n\n    // prevent the text from being highlighted when the user drags the mouse\n    this.text.style('user-select:none');\n    this.text.node.setAttribute('user-select', 'none');\n    this.text.node.setAttribute('style', 'user-select:none');\n\n    // add the rectangle and text to the group\n    this.textGroup.add(this.textRect);\n    this.textGroup.add(this.text);\n\n    var width = 0;\n\n    try {\n      // get the width of the bounding box of the text node\n      var textBBox = this.text.node.getBBox();\n\n      if (textBBox.width == 0) {\n        width = this.calculateTextRectWidth(this.label);\n      } else {\n        width = textBBox.width + 10;\n      }\n    } catch(e) {\n      /*\n       * we were unable to get the bounding box (likely because\n       * Firefox threw an error when trying to call getBBox())\n       * so we will calculate the width based on the label text\n       */\n      width = this.calculateTextRectWidth(this.label);\n    }\n\n    this.textRect.attr('width', width);\n\n    // set the location of the text to be somewhere along the line of the link\n    var totalLength = this.path.node.getTotalLength();\n    var midPoint = this.path.node.getPointAtLength(totalLength * this.textPercentageLocationOnLink);\n    this.textGroup.cx(midPoint.x);\n    this.textGroup.cy(midPoint.y);\n\n    // hide the text group until the student has chosen a link type\n    this.textGroup.hide();\n\n    /*\n     * set the link group id into the text group so we can look it up\n     * later when the mouse is clicked down on the text group\n     */\n    this.textGroup.node.linkGroupId = this.group.id();\n\n    return this.textGroup;\n  }\n\n  /**\n   * Move the text group to the front so that it won't be blocked behind\n   * another element when the student tries to click on the text group.\n   */\n  moveTextGroupToFront() {\n    this.textGroup.front();\n  }\n\n  /**\n   * Show the text group\n   */\n  showTextGroup() {\n\n    if (this.textGroup != null) {\n      this.textGroup.show();\n    }\n  }\n\n  /**\n   * Hide the text group\n   */\n  hideTextGroup() {\n\n    if (this.textGroup != null) {\n      this.textGroup.hide();\n    }\n  }\n\n  /**\n   * Remove all the references to the link and also remove all the elements\n   * from the svg\n   */\n  remove() {\n\n    if (this.sourceNode != null) {\n      // remove the link from the source node's outgoing links\n      this.sourceNode.removeOutgoingLink(this);\n    }\n\n    if (this.destinationNode != null) {\n      // remove the link from the destination node's incoming links\n      this.destinationNode.removeIncomingLink(this);\n    }\n\n    if (this.path != null) {\n      // remove the line\n      this.path.remove();\n    }\n\n    if (this.head != null) {\n      // remove the arrow head\n      this.head.remove();\n    }\n\n    if (this.deleteButtonGroup != null) {\n      // remove the delete button group\n      this.deleteButtonGroup.remove();\n    }\n\n    if (this.textGroup != null) {\n      // remove the text group\n      this.textGroup.remove();\n    }\n\n    if (this.group != null) {\n      // remove the link group\n      this.group.remove();\n    }\n  }\n\n  /**\n   * Calculate the width that the text rectangle should be set to\n   * @param labelText the label text that will be displayed in the rectangle\n   * @return the width that the text rectangle should be set to\n   */\n  calculateTextRectWidth(labelText) {\n    var width = 0;\n\n    if (labelText != null) {\n      width = (labelText.length * 6) + 10;\n    }\n\n    return width;\n  }\n\n  // end of ConceptMapLink class\n}\n\n\nConceptMapService.$inject = [\n  '$anchorScroll',\n  '$filter',\n  '$location',\n  '$q',\n  '$timeout',\n  'ConfigService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default ConceptMapService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/conceptMap/index.html b/src/main/webapp/wise5/components/conceptMap/index.html
index 0f755a9513..ea56896fab 100644
--- a/src/main/webapp/wise5/components/conceptMap/index.html
+++ b/src/main/webapp/wise5/components/conceptMap/index.html
@@ -632,7 +632,7 @@ <h5>{{ 'studentPreview' | translate }}</h5>
               <div ng-if='conceptMapController.displayLinkTypeChooserModalOverlay'
                   ng-style='conceptMapController.linkTypeChooserModalOverlayStyle'>
               </div>
-              <draggable container-width='conceptMapController.modalWidth'
+              <div container-width='conceptMapController.modalWidth'
                   container-height='conceptMapController.modalHeight'
                   ng-if='conceptMapController.displayLinkTypeChooser'
                   class='ng-modal'
@@ -657,18 +657,9 @@ <h5>{{ 'studentPreview' | translate }}</h5>
                 </md-radio-group>
                 <div style='display: flex'>
                   <div style='margin-right: auto;'><md-button class='md-primary md-button md-raised' ng-click='conceptMapController.cancelLinkTypeChooser()'>{{ 'CANCEL' | translate }}</md-button></div>
-                  <div style='display: flex; margin-right: 16px;'>
-                    <md-tooltip md-direction='left'
-                        style='z-index: 10001;'>
-                      {{ 'conceptMap.dragMe' | translate }}
-                    </md-tooltip>
-                    <md-icon style='transform: rotate(45deg)'
-                        ng-click='conceptMapController.dragIconClicked()'>
-                      zoom_out_map
-                    </md-icon>
-                  </div>
+                  <div style='margin-right: auto;'><md-button class='md-primary md-button md-raised' ng-click='conceptMapController.linkDeleteButtonClicked($event, conceptMapController.highlightedElement)'>{{ 'DELETE' | translate }}</md-button></div>
                 </div>
-              </draggable>
+              </div>
             </div>
             <div id='{{conceptMapController.feedbackContainerId}}'></div>
             <md-button class='input--textarea__action input--textarea__action--revision md-icon-button'
diff --git a/src/main/webapp/wise5/components/discussion/discussionController.es6 b/src/main/webapp/wise5/components/discussion/discussionController.es6
index fcf95fe4c4..593448d438 100644
--- a/src/main/webapp/wise5/components/discussion/discussionController.es6
+++ b/src/main/webapp/wise5/components/discussion/discussionController.es6
@@ -689,6 +689,7 @@ class DiscussionController {
         let componentId = args.componentId;
         if (this.componentId === componentId) {
           this.showAdvancedAuthoring = !this.showAdvancedAuthoring;
+          this.UtilService.hideJSONValidMessage();
         }
       }
     });
@@ -1433,8 +1434,7 @@ class DiscussionController {
    * The component has changed in the advanced authoring view so we will update
    * the component and save the project.
    */
-  advancedAuthoringViewComponentChanged() {
-
+  saveJSONAuthoringViewChanges() {
     try {
       /*
        * create a new component by converting the JSON string in the advanced
@@ -1453,6 +1453,10 @@ class DiscussionController {
        * the project to the server
        */
       this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();
+
+      // scroll to the top of the component
+      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });
+      this.jsonStringChanged = false;
     } catch(e) {
       this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();
     }
@@ -2126,28 +2130,51 @@ class DiscussionController {
    * The show JSON button was clicked to show or hide the JSON authoring
    */
   showJSONButtonClicked() {
-    // toggle the JSON authoring textarea
-    this.showJSONAuthoring = !this.showJSONAuthoring;
-
-    if (this.jsonStringChanged && !this.showJSONAuthoring) {
-      /*
-       * the author has changed the JSON and has just closed the JSON
-       * authoring view so we will save the component
-       */
-      this.advancedAuthoringViewComponentChanged();
-
-      // scroll to the top of the component
-      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });
-
-      this.jsonStringChanged = false;
+    if (this.showJSONAuthoring) {
+      // we were showing the JSON authoring view and now we want to hide it
+      if (this.isJSONValid()) {
+        this.saveJSONAuthoringViewChanges();
+        this.toggleJSONAuthoringView();
+        this.UtilService.hideJSONValidMessage();
+      } else {
+        let answer = confirm(this.$translate('jsonInvalidErrorMessage'));
+        if (answer) {
+          // the author wants to revert back to the last valid JSON
+          this.toggleJSONAuthoringView();
+          this.UtilService.hideJSONValidMessage();
+          this.jsonStringChanged = true;
+        }
+      }
+    } else {
+      // we were not showing the JSON authoring view and now we want to show it
+      this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);
+      this.toggleJSONAuthoringView();
     }
   }
 
+  toggleJSONAuthoringView() {
+    this.showJSONAuthoring = !this.showJSONAuthoring;
+  }
+
   /**
    * The author has changed the JSON manually in the advanced view
    */
   authoringJSONChanged() {
     this.jsonStringChanged = true;
+    if (this.isJSONValid()) {
+      this.UtilService.showJSONValidMessage();
+    } else {
+      this.UtilService.showJSONInvalidMessage();
+    }
+  }
+
+  isJSONValid() {
+    try {
+      angular.fromJson(this.authoringComponentContentJSONString);
+      return true;
+    } catch (e) {
+      return false;
+    }
   }
 }
 
diff --git a/src/main/webapp/wise5/components/discussion/discussionController.js b/src/main/webapp/wise5/components/discussion/discussionController.js
index 4ab4580818..2e0d1aa6a5 100644
--- a/src/main/webapp/wise5/components/discussion/discussionController.js
+++ b/src/main/webapp/wise5/components/discussion/discussionController.js
@@ -670,6 +670,7 @@ var DiscussionController = function () {
         var componentId = args.componentId;
         if (_this2.componentId === componentId) {
           _this2.showAdvancedAuthoring = !_this2.showAdvancedAuthoring;
+          _this2.UtilService.hideJSONValidMessage();
         }
       }
     });
@@ -1519,15 +1520,14 @@ var DiscussionController = function () {
       this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();
     }
   }, {
-    key: 'advancedAuthoringViewComponentChanged',
+    key: 'saveJSONAuthoringViewChanges',
 
 
     /**
      * The component has changed in the advanced authoring view so we will update
      * the component and save the project.
      */
-    value: function advancedAuthoringViewComponentChanged() {
-
+    value: function saveJSONAuthoringViewChanges() {
       try {
         /*
          * create a new component by converting the JSON string in the advanced
@@ -1546,6 +1546,10 @@ var DiscussionController = function () {
          * the project to the server
          */
         this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();
+
+        // scroll to the top of the component
+        this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });
+        this.jsonStringChanged = false;
       } catch (e) {
         this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();
       }
@@ -2323,22 +2327,32 @@ var DiscussionController = function () {
   }, {
     key: 'showJSONButtonClicked',
     value: function showJSONButtonClicked() {
-      // toggle the JSON authoring textarea
-      this.showJSONAuthoring = !this.showJSONAuthoring;
-
-      if (this.jsonStringChanged && !this.showJSONAuthoring) {
-        /*
-         * the author has changed the JSON and has just closed the JSON
-         * authoring view so we will save the component
-         */
-        this.advancedAuthoringViewComponentChanged();
-
-        // scroll to the top of the component
-        this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });
-
-        this.jsonStringChanged = false;
+      if (this.showJSONAuthoring) {
+        // we were showing the JSON authoring view and now we want to hide it
+        if (this.isJSONValid()) {
+          this.saveJSONAuthoringViewChanges();
+          this.toggleJSONAuthoringView();
+          this.UtilService.hideJSONValidMessage();
+        } else {
+          var answer = confirm(this.$translate('jsonInvalidErrorMessage'));
+          if (answer) {
+            // the author wants to revert back to the last valid JSON
+            this.toggleJSONAuthoringView();
+            this.UtilService.hideJSONValidMessage();
+            this.jsonStringChanged = true;
+          }
+        }
+      } else {
+        // we were not showing the JSON authoring view and now we want to show it
+        this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);
+        this.toggleJSONAuthoringView();
       }
     }
+  }, {
+    key: 'toggleJSONAuthoringView',
+    value: function toggleJSONAuthoringView() {
+      this.showJSONAuthoring = !this.showJSONAuthoring;
+    }
 
     /**
      * The author has changed the JSON manually in the advanced view
@@ -2348,6 +2362,21 @@ var DiscussionController = function () {
     key: 'authoringJSONChanged',
     value: function authoringJSONChanged() {
       this.jsonStringChanged = true;
+      if (this.isJSONValid()) {
+        this.UtilService.showJSONValidMessage();
+      } else {
+        this.UtilService.showJSONInvalidMessage();
+      }
+    }
+  }, {
+    key: 'isJSONValid',
+    value: function isJSONValid() {
+      try {
+        angular.fromJson(this.authoringComponentContentJSONString);
+        return true;
+      } catch (e) {
+        return false;
+      }
     }
   }]);
 
diff --git a/src/main/webapp/wise5/components/discussion/discussionController.js.map b/src/main/webapp/wise5/components/discussion/discussionController.js.map
index f6f47a70d8..579fb70510 100644
--- a/src/main/webapp/wise5/components/discussion/discussionController.js.map
+++ b/src/main/webapp/wise5/components/discussion/discussionController.js.map
@@ -1 +1 @@
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DiscussionController {\n  constructor($filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      AnnotationService,\n      ConfigService,\n      DiscussionService,\n      NodeService,\n      NotificationService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      StudentWebSocketService,\n      UtilService,\n      $mdMedia) {\n\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.DiscussionService = DiscussionService;\n    this.NodeService = NodeService;\n    this.NotificationService = NotificationService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.StudentWebSocketService = StudentWebSocketService;\n    this.UtilService = UtilService;\n    this.idToOrder = this.ProjectService.idToOrder;\n    this.$mdMedia = $mdMedia;\n\n    this.$translate = this.$filter('translate');\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // holds the text that the student has typed\n    this.studentResponse = '';\n\n    // holds the text for a new response (not a reply)\n    this.newResponse = '';\n\n    // holds student attachments like assets\n    this.newAttachments = [];\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether this part is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // will hold the class responses\n    this.classResponses = [];\n\n    // will hold the top level responses\n    this.topLevelResponses = [];\n\n    // the text that is being submitted\n    this.submitText = null;\n\n    // map from component state id to response\n    this.responsesMap = {};\n\n    // whether rich text is enabled\n    this.isRichTextEnabled = false;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // whether we have retrieved the classmate responses\n    this.retrievedClassmateResponses = false;\n\n    // the latest annotations\n    this.latestAnnotations = null;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    this.workgroupId = null;\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      {\n        type: 'Discussion'\n      }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n\n      this.mode = this.$scope.mode;\n\n      if (this.$scope.workgroupId != null) {\n        this.workgroupId = this.$scope.workgroupId;\n      }\n\n      if (this.$scope.nodeId != null) {\n        this.nodeId = this.$scope.nodeId;\n      }\n\n      if (this.mode === 'student') {\n        if (this.ConfigService.isPreview()) {\n          let componentStates = null;\n          if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n            // assume there can only be one connected component\n            let connectedComponent = this.componentContent.connectedComponents[0];\n            if (this.authoringGetConnectedComponentType(connectedComponent) == 'Discussion') {\n              componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(\n                  connectedComponent.nodeId, connectedComponent.componentId);\n            }\n          } else {\n            componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(\n                this.nodeId, this.componentId);\n          }\n          this.setClassResponses(componentStates);\n        } else {\n          // we are in regular student run mode\n\n          if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n            // assume there can only be one connected component\n            let connectedComponent = this.componentContent.connectedComponents[0];\n            if (this.authoringGetConnectedComponentType(connectedComponent) == 'Discussion') {\n              this.getClassmateResponses(connectedComponent.nodeId, connectedComponent.componentId);\n            }\n          } else {\n            if (this.isClassmateResponsesGated()) {\n              /*\n               * classmate responses are gated so we will not show them if the student\n               * has not submitted a response\n               */\n\n              // get the component state from the scope\n              var componentState = this.$scope.componentState;\n\n              if (componentState != null) {\n                /*\n                 * the student has already submitted a response so we will\n                 * display the classmate responses\n                 */\n                this.getClassmateResponses();\n              }\n            } else {\n              // classmate responses are not gated so we will show them\n              this.getClassmateResponses();\n            }\n          }\n\n          // get the latest annotations\n          this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n        }\n\n        // check if we need to lock this component\n        this.calculateDisabled();\n      } else if (this.mode === 'grading' || this.mode === 'gradingRevision') {\n\n        /*\n         * get all the posts that this workgroup id is part of. if the student\n         * posted a top level response we will get the top level response and\n         * all the replies. if the student replied to a top level response we\n         * will get the top level response and all the replies.\n         */\n        var componentStates = this.DiscussionService.getPostsAssociatedWithWorkgroupId(this.componentId, this.workgroupId);\n\n        // get the innappropriate flag annotations for the component states\n        var annotations = this.getInappropriateFlagAnnotationsByComponentStates(componentStates);\n\n        // show the posts\n        this.setClassResponses(componentStates, annotations);\n\n        this.isDisabled = true;\n\n        if (this.mode === 'grading') {\n          // get the latest annotations\n          this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n        }\n      } else if (this.mode === 'onlyShowWork') {\n        this.isDisabled = true;\n      } else if (this.mode === 'showPreviousWork') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'authoring') {\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n        }.bind(this), true);\n      }\n\n      this.isRichTextEnabled = this.componentContent.isRichTextEnabled;\n\n      // set whether studentAttachment is enabled\n      this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n      if (this.$scope.$parent.nodeController != null) {\n        // register this component with the parent node\n        this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n      }\n    }\n\n    /**\n     * The submit button was clicked\n     * @param response the response object related to the submit button\n     */\n    this.$scope.submitbuttonclicked = function(response) {\n\n      if (response) {\n        // this submit button was clicked for a reply\n\n        if (response.replyText){\n          var componentState = response;\n\n          // get the component state id\n          var componentStateId = componentState.id;\n\n          /*\n           * remember the values in the controller so we can read\n           * from them later when the student data is saved\n           */\n          this.$scope.discussionController.studentResponse = componentState.replyText;\n          this.$scope.discussionController.componentStateIdReplyingTo = componentStateId;\n\n          // clear the reply input\n          response.replyText = null;\n\n          this.$scope.discussionController.isSubmit = true;\n          this.$scope.discussionController.isDirty = true;\n        }\n      } else {\n        // the submit button was clicked for the new post\n\n        /*\n         * set the response from the top textarea into the\n         * studentResponse field that we will read from later\n         * when the student data is saved\n         */\n        this.$scope.discussionController.studentResponse = this.$scope.discussionController.newResponse;\n\n        this.$scope.discussionController.isSubmit = true;\n      }\n\n      if (this.mode === 'authoring') {\n        this.createComponentState('submit');\n      }\n\n      // tell the parent node that this component wants to submit\n      this.$scope.$emit('componentSubmitTriggered', {nodeId: this.$scope.discussionController.nodeId, componentId: this.$scope.discussionController.componentId});\n    }.bind(this);\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @return a component state containing the student data\n     */\n    this.$scope.getComponentState = function() {\n      var deferred = this.$q.defer();\n\n      // check if the student work is dirty and the student clicked the submit button\n      if (this.$scope.discussionController.isDirty && this.$scope.discussionController.isSubmit) {\n\n        var action = 'submit';\n\n        // create a component state populated with the student data\n        this.$scope.discussionController.createComponentState(action).then((componentState) => {\n          /*\n           * clear the component values so they aren't accidentally used again\n           * later\n           */\n          this.$scope.discussionController.clearComponentValues();\n\n          // set isDirty to false since this student work is about to be saved\n          this.$scope.discussionController.isDirty = false;\n\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', (event, args) => {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n        this.isSubmit = true;\n      }\n    });\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', (event, args) => {\n\n      // do nothing\n    });\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', (event, args) => {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // check if the classmate responses are gated\n        if (this.isClassmateResponsesGated() && !this.retrievedClassmateResponses) {\n          /*\n           * the classmate responses are gated and we haven't retrieved\n           * them yet so we will obtain them now and show them since the student\n           * has just submitted a response. getting the classmate responses will\n           * also get the post the student just saved to the server.\n           */\n          this.getClassmateResponses();\n        } else {\n          /*\n           * the classmate responses are not gated or have already been retrieved\n           * which means they are already being displayed. we just need to add the\n           * new response in this case.\n           */\n\n          // add the component state to our collection of class responses\n          this.addClassResponse(componentState);\n        }\n\n        this.submit();\n\n        // send the student post to web sockets so all the classmates receive it in real time\n        let messageType = 'studentData';\n        componentState.userNamesArray = this.ConfigService.getUserNamesByWorkgroupId(componentState.workgroupId);\n\n        this.StudentWebSocketService.sendStudentToClassmatesInPeriodMessage(messageType, componentState);\n\n        // next, send notifications to students who have posted a response in the same thread as this post\n        let studentData = componentState.studentData;\n        if (studentData != null && this.responsesMap != null) {\n          let componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n          if (componentStateIdReplyingTo != null) {\n            // populate fields of the notification\n            let fromWorkgroupId = componentState.workgroupId;\n            let notificationType = 'DiscussionReply';\n            let nodeId = componentState.nodeId;\n            let componentId = componentState.componentId;\n            // add the user names to the component state so we can display next to the response\n            let userNamesArray = this.ConfigService.getUserNamesByWorkgroupId(fromWorkgroupId);\n            let userNames = userNamesArray.map( (obj) => {\n              return obj.name;\n            }).join(', ');\n            let notificationMessage = this.$translate('discussion.repliedToADiscussionYouWereIn', { userNames: userNames });\n\n            let workgroupsNotifiedSoFar = [];  // keep track of workgroups we've already notified, in case a workgroup posts twice on a thread we only want to notify once.\n            // check if we have the component state that was replied to\n            if (this.responsesMap[componentStateIdReplyingTo] != null) {\n              let originalPostComponentState = this.responsesMap[componentStateIdReplyingTo];\n              let toWorkgroupId = originalPostComponentState.workgroupId; // notify the workgroup who posted this reply\n              if (toWorkgroupId != null && toWorkgroupId != fromWorkgroupId) {\n                let notification = this.NotificationService.createNewNotification(notificationType, nodeId, componentId, fromWorkgroupId, toWorkgroupId, notificationMessage);\n                this.NotificationService.saveNotificationToServer(notification).then((savedNotification) => {\n                  let messageType = 'notification';\n                  this.StudentWebSocketService.sendStudentToClassmatesInPeriodMessage(messageType, savedNotification);\n                });\n                workgroupsNotifiedSoFar.push(toWorkgroupId);  // make sure we don't notify this workgroup again.\n              }\n\n              // also notify repliers to this thread, if any.\n              if (this.responsesMap[componentStateIdReplyingTo].replies != null) {\n                let replies = this.responsesMap[componentStateIdReplyingTo].replies;\n\n                for (let r = 0; r < replies.length; r++) {\n                  let reply = replies[r];\n                  let toWorkgroupId = reply.workgroupId; // notify the workgroup who posted this reply\n                  if (toWorkgroupId != null && toWorkgroupId != fromWorkgroupId && workgroupsNotifiedSoFar.indexOf(toWorkgroupId) == -1) {\n                    let notification = this.NotificationService.createNewNotification(notificationType, nodeId, componentId, fromWorkgroupId, toWorkgroupId, notificationMessage);\n                    this.NotificationService.saveNotificationToServer(notification).then((savedNotification) => {\n                      let messageType = 'notification';\n                      this.StudentWebSocketService.sendStudentToClassmatesInPeriodMessage(messageType, savedNotification);\n                    });\n                    workgroupsNotifiedSoFar.push(toWorkgroupId);  // make sure we don't notify this workgroup again.\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n\n      this.isSubmit = null;\n    });\n\n    this.$scope.studentdatachanged = function() {\n      this.$scope.discussionController.studentDataChanged();\n    };\n\n    /**\n     * We have recived a web socket message\n     */\n    this.$rootScope.$on('webSocketMessageRecieved', (event, args) => {\n      if (args != null) {\n        var data = args.data;\n\n        var componentState = data.data;\n\n        if (componentState != null) {\n\n          // check that the web socket message is for this step\n          if (componentState.nodeId === this.nodeId) {\n\n            // get the sender of the message\n            var componentStateWorkgroupId = componentState.workgroupId;\n\n            // get the workgroup id of the signed in student\n            var workgroupId = this.ConfigService.getWorkgroupId();\n\n            /*\n             * check if the signed in student sent the message. if the\n             * signed in student sent the message we can ignore it.\n             */\n            if (workgroupId !== componentStateWorkgroupId) {\n\n              if (this.retrievedClassmateResponses) {\n                // display the classmate post\n                this.addClassResponse(componentState);\n              }\n            }\n          }\n        }\n      }\n    });\n\n    var scope = this;\n    var themePath = this.ProjectService.getThemePath();\n\n    // TODO: make toolbar items and plugins customizable by authors?\n    // Rich text editor options\n    this.tinymceOptions = {\n      //onChange: function(e) {\n      //scope.studentDataChanged();\n      //},\n      menubar: false,\n      plugins: 'link autoresize',\n      toolbar: 'superscript subscript',\n      autoresize_bottom_margin: '0',\n      autoresize_min_height: '100',\n      image_advtab: true,\n      content_css: themePath + '/style/tinymce.css',\n      statusbar: false,\n      forced_root_block: false,\n      setup: function (ed) {\n        ed.on('focus', function (e) {\n          $(e.target.editorContainer).addClass('input--focused').parent().addClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').addClass('input-label--focused');\n        });\n\n        ed.on('blur', function (e) {\n          $(e.target.editorContainer).removeClass('input--focused').parent().removeClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').removeClass('input-label--focused');\n        });\n      }\n    };\n\n    this.$scope.$watch(function() { return $mdMedia('gt-sm'); }, function(md) {\n      $scope.mdScreen = md;\n    });\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }\n\n  /**\n   * Get the classmate responses\n   */\n  getClassmateResponses(nodeId = this.nodeId, componentId = this.componentId) {\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n\n    // make the request for the classmate responses\n    this.DiscussionService.getClassmateResponses(runId, periodId, nodeId, componentId).then((result) => {\n\n      if (result != null) {\n        var componentStates = result.studentWorkList;\n\n        /*\n         * get the annotations in case there are any that have\n         * inappropriate flags\n         */\n        var annotations = result.annotations;\n\n        // set the classmate responses\n        this.setClassResponses(componentStates, annotations);\n      }\n    });\n  };\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n      // populate the text the student previously typed\n      var studentData = componentState.studentData;\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    this.isSubmit = true;\n\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n\n    // handle the submit button click\n    this.$scope.submitbuttonclicked();\n  };\n\n  submit() {\n    if (this.isLockAfterSubmit()) {\n      // disable the component if it was authored to lock after submit\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flag so we will know we need to save the\n     * student work later\n     */\n    this.isDirty = true;\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    if (componentState != null) {\n      var studentData = {};\n\n      // set the response into the component state\n      studentData.response = this.studentResponse;\n\n      studentData.attachments = this.newAttachments;\n\n      if (this.componentStateIdReplyingTo != null) {\n        // if this step is replying, set the component state id replying to\n        studentData.componentStateIdReplyingTo = this.componentStateIdReplyingTo;\n      }\n\n      componentState.studentData = studentData;\n\n      // set the component type\n      componentState.componentType = 'Discussion';\n\n      // set the node id\n      componentState.nodeId = this.nodeId;\n\n      // set the component id\n      componentState.componentId = this.componentId;\n\n      if ((this.ConfigService.isPreview() && !this.componentStateIdReplyingTo) || this.mode === 'authoring') {\n        // create a dummy component state id if we're in preview mode and posting a new response\n        componentState.id = this.UtilService.generateKey();\n      }\n\n      if (this.isSubmit) {\n        // the student submitted this work\n        componentState.studentData.isSubmit = this.isSubmit;\n\n        /*\n         * reset the isSubmit value so that the next component state\n         * doesn't maintain the same value\n         */\n        this.isSubmit = false;\n\n        if (this.mode === 'authoring') {\n          if (this.StudentDataService.studentData == null) {\n            /*\n             * initialize the student data since this usually doesn't\n             * occur in the authoring mode\n             */\n            this.StudentDataService.studentData = {};\n            this.StudentDataService.studentData.componentStates = [];\n          }\n\n          // add the component state to the StudentDataService studentData\n          this.StudentDataService.studentData.componentStates.push(componentState);\n\n          // get the component states for this component\n          var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n          // set the component states into the component\n          this.setClassResponses(componentStates);\n\n          /*\n           * clear the input where the user has entered the text they\n           * are posting\n           */\n          this.clearComponentValues();\n          this.isDirty = false;\n        }\n      }\n    }\n\n    var deferred = this.$q.defer();\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n    /*\n     * we don't need to perform any additional processing so we can resolve\n     * the promise immediately\n     */\n    deferred.resolve(componentState);\n  }\n\n  /**\n   * Clear the component values so they aren't accidentally used again\n   */\n  clearComponentValues() {\n\n    // clear the student response\n    this.studentResponse = '';\n\n    // clear the new response input\n    this.newResponse = '';\n\n    // clear new attachments input\n    this.newAttachments = [];\n\n    // clear the component state id replying to\n    this.componentStateIdReplyingTo = null;\n  };\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    var nodeId = this.nodeId;\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the step after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n      if (this.UtilService.hasConnectedComponent(componentContent)) {\n        for (let connectedComponent of componentContent.connectedComponents) {\n          if (connectedComponent.type == 'showWork') {\n            this.isDisabled = true;\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Check whether we need to show the save button\n   * @return whether to show the save button\n   */\n  showSaveButton() {\n    var show = false;\n\n    if (this.componentContent != null) {\n\n      // check the showSaveButton field in the component content\n      if (this.componentContent.showSaveButton) {\n        show = true;\n      }\n    }\n\n    return show;\n  };\n\n  /**\n   * Check whether we need to show the submit button\n   * @return whether to show the submit button\n   */\n  showSubmitButton() {\n    var show = false;\n\n    if (this.componentContent != null) {\n\n      // check the showSubmitButton field in the component content\n      if (this.componentContent.showSubmitButton) {\n        show = true;\n      }\n    }\n\n    return show;\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   * @return whether to lock the component after the student submits\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Check whether we need to gate the classmate responses\n   * @return whether to gate the classmate responses\n   */\n  isClassmateResponsesGated() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the gateClassmateResponses field in the component content\n      if (this.componentContent.gateClassmateResponses) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  removeAttachment(attachment) {\n    if (this.newAttachments.indexOf(attachment) != -1) {\n      this.newAttachments.splice(this.newAttachments.indexOf(attachment), 1);\n      this.studentDataChanged();\n    }\n  };\n\n  /**\n   * Attach student asset to this Component's attachments\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          var attachment = {\n            studentAssetId: copiedAsset.id,\n            iconURL: copiedAsset.iconURL\n          };\n\n          this.newAttachments.push(attachment);\n          this.studentDataChanged();\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the number of rows for the textarea\n   */\n  getNumRows() {\n    var numRows = null;\n\n    if (this.componentContent != null) {\n      numRows = this.componentContent.numRows;\n    }\n\n    return numRows;\n  };\n\n  /**\n   * Import work from another component\n   */\n  importWork() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      var importWorkNodeId = componentContent.importWorkNodeId;\n      var importWorkComponentId = componentContent.importWorkComponentId;\n\n      if (importWorkNodeId != null && importWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importWorkNodeId, importWorkComponentId);\n\n          if (importWorkComponentState != null) {\n            /*\n             * populate a new component state with the work from the\n             * imported component state\n             */\n            var populatedComponentState = this.DiscussionService.populateComponentState(importWorkComponentState);\n\n            // populate the component state into this component\n            this.setStudentWork(populatedComponentState);\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * Set the class responses into the controller\n   * @param componentStates the class component states\n   * @param annotations the inappropriate flag annotations\n   */\n  setClassResponses(componentStates, annotations) {\n\n    this.classResponses = [];\n\n    if (componentStates != null) {\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n        var componentState = componentStates[c];\n\n        if (componentState != null) {\n\n          // get the component state id\n          var id = componentState.id;\n\n          // get the workgroup id\n          var workgroupId = componentState.workgroupId;\n\n          // get the student data\n          var studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            if (componentState.studentData.isSubmit) {\n\n              // get the latest inappropriate flag for this compnent state\n              var latestInappropriateFlagAnnotation = this.getLatestInappropriateFlagAnnotationByStudentWorkId(annotations, componentState.id);\n\n              // add the user names to the component state so we can display next to the response\n              let userNames = this.ConfigService.getUserNamesByWorkgroupId(workgroupId);\n              componentState.userNames = userNames.map(function(obj) { return obj.name; }).join(', ');\n\n              // add a replies array to the component state that we will fill with component state replies later\n              componentState.replies = [];\n\n              if (this.mode == 'grading' || this.mode == 'gradingRevision') {\n\n                if (latestInappropriateFlagAnnotation != null) {\n                  /*\n                   * Set the inappropriate flag annotation into\n                   * the component state. This is used for the\n                   * grading tool to determine whether to show\n                   * the 'Delete' button or the 'Undo Delete'\n                   * button.\n                   */\n                  componentState.latestInappropriateFlagAnnotation = latestInappropriateFlagAnnotation;\n                }\n\n                // add the component state to our array\n                this.classResponses.push(componentState);\n              } else if (this.mode == 'student') {\n\n                if (latestInappropriateFlagAnnotation != null &&\n                  latestInappropriateFlagAnnotation.data != null &&\n                  latestInappropriateFlagAnnotation.data.action == 'Delete') {\n\n                  // do not show this post because the teacher has deleted it\n                } else {\n                  // add the component state to our array\n                  this.classResponses.push(componentState);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    // process the class responses\n    this.processResponses(this.classResponses);\n\n    this.retrievedClassmateResponses = true;\n  };\n\n  /**\n   * Get the latest inappropriate flag annotation for a student work id\n   * @param annotations an array of annotations\n   * @param studentWorkId a student work id\n   * @return the latest inappropriate flag annotation for the given student\n   * work id\n   */\n  getLatestInappropriateFlagAnnotationByStudentWorkId(annotations, studentWorkId) {\n\n    if (annotations != null) {\n\n      // loop through all the annotations from newest to oldest\n      for (var a = annotations.length - 1; a >= 0; a--) {\n        var annotation = annotations[a];\n\n        if (annotation != null) {\n          if (studentWorkId == annotation.studentWorkId && annotation.type == 'inappropriateFlag') {\n            /*\n             * we have found an inappropriate flag annotation for\n             * the student work id we are looking for\n             */\n            return annotation;\n          }\n        }\n      }\n    }\n\n    return null;\n  }\n\n  /**\n   * Process the class responses. This will put responses into the\n   * replies arrays.\n   * @param classResponses an array of component states\n   */\n  processResponses(componentStates) {\n\n    if (componentStates) {\n      var componentState;\n\n      // loop through all the component states\n      for (var i = 0; i < componentStates.length; i++) {\n        componentState = componentStates[i];\n\n        if (componentState) {\n          var componentStateId = componentState.id;\n\n          // set the component state into the map\n          this.responsesMap[componentStateId] = componentState;\n        }\n      }\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n        componentState = componentStates[c];\n\n        if (componentState && componentState.studentData) {\n\n          // get the student data\n          var studentData = componentState.studentData;\n\n          // get the component state id replying to if any\n          var componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n\n          if (componentStateIdReplyingTo) {\n\n            if (this.responsesMap[componentStateIdReplyingTo] &&\n              this.responsesMap[componentStateIdReplyingTo].replies) {\n              /*\n               * add this component state to the replies array of the\n               * component state that was replied to\n               */\n              this.responsesMap[componentStateIdReplyingTo].replies.push(componentState);\n            }\n          }\n        }\n      }\n\n      this.topLevelResponses = this.getLevel1Responses();\n    }\n  };\n\n  /**\n   * Add a class response to our model\n   * @param componentState the component state to add to our model\n   */\n  addClassResponse(componentState) {\n\n    if (componentState != null) {\n\n      // get the student data\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        if (componentState.studentData.isSubmit) {\n          // this component state is a submit, so we will add it\n\n          // get the workgroup id\n          var workgroupId = componentState.workgroupId;\n\n          // add the user names to the component state so we can display next to the response\n          let userNames = this.ConfigService.getUserNamesByWorkgroupId(workgroupId);\n          if (userNames.length > 0) {\n            componentState.userNames = userNames.map(function(obj) { return obj.name; }).join(', ');\n          } else if (componentState.userNamesArray != null) {\n            componentState.userNames = componentState.userNamesArray\n                .map(function(obj) { return obj.name; }).join(', ');\n          }\n\n          // add a replies array to the component state that we will fill with component state replies later\n          componentState.replies = [];\n\n          // add the component state to our array of class responses\n          this.classResponses.push(componentState);\n\n          // get the component state id\n          var componentStateId = componentState.id;\n\n          // add the response to our map\n          this.responsesMap[componentStateId] = componentState;\n\n          // get the component state id replying to if any\n          var componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n\n          if (componentStateIdReplyingTo != null) {\n\n            // check if we have the component state that was replied to\n            if (this.responsesMap[componentStateIdReplyingTo] != null &&\n              this.responsesMap[componentStateIdReplyingTo].replies != null) {\n              /*\n               * add this response to the replies array of the response\n               * that was replied to\n               */\n              this.responsesMap[componentStateIdReplyingTo].replies.push(componentState);\n            }\n          }\n\n          this.topLevelResponses = this.getLevel1Responses();\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the class responses\n   */\n  getClassResponses() {\n    return this.classResponses;\n  };\n\n  /**\n   * Get the level 1 responses which are posts that are not a\n   * reply to another response.\n   * @return an array of responses that are not a reply to another\n   * response\n   */\n  getLevel1Responses() {\n    var level1Responses = [];\n    var classResponses = this.classResponses;\n\n    if (classResponses != null) {\n\n      // loop through all the class responses\n      for (var r = 0; r < classResponses.length; r++) {\n        var tempClassResponse = classResponses[r];\n\n        if (tempClassResponse != null && tempClassResponse.studentData) {\n\n          // get the student data\n          var studentData = tempClassResponse.studentData;\n\n          // get the component state id replying to if any\n          var componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n\n          if (componentStateIdReplyingTo == null) {\n            /*\n             * this response was not a reply to another post so it is a\n             * level 1 response\n             */\n            level1Responses.push(tempClassResponse);\n          }\n        }\n      }\n    }\n\n    return level1Responses;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    this.exitListener = this.$scope.$on('exit', (event, args) => {\n      // do nothing\n      this.$rootScope.$broadcast('doneExiting');\n    });\n  };\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a connected component\n   */\n  addConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.updateOn = 'change';\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  deleteConnectedComponent(index) {\n\n    if (this.authoringComponentContent.connectedComponents != null) {\n      this.authoringComponentContent.connectedComponents.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The teacher has clicked the delete button to delete a post. We won't\n   * actually delete the student work, we'll just create an inappropriate\n   * flag annotation which prevents the students in the class from seeing\n   * the post.\n   * @param componentState the student component state the teacher wants to\n   * delete.\n   */\n  deletebuttonclicked(componentState) {\n\n    if (componentState != null) {\n\n      var toWorkgroupId = componentState.workgroupId;\n\n      var userInfo = this.ConfigService.getUserInfoByWorkgroupId(toWorkgroupId);\n\n      var periodId = null;\n\n      if (userInfo != null) {\n        periodId = userInfo.periodId;\n      }\n\n      var teacherUserInfo = this.ConfigService.getMyUserInfo();\n\n      var fromWorkgroupId = null;\n\n      if (teacherUserInfo != null) {\n        fromWorkgroupId = teacherUserInfo.workgroupId;\n      }\n\n      var runId = this.ConfigService.getRunId();\n      var nodeId = this.nodeId;\n      var componentId = this.componentId;\n      var studentWorkId = componentState.id;\n      var data = {};\n      data.action = 'Delete';\n\n      // create the inappropriate flag 'Delete' annotation\n      var annotation = this.AnnotationService.createInappropriateFlagAnnotation(runId, periodId, nodeId, componentId, fromWorkgroupId, toWorkgroupId, studentWorkId, data);\n\n      // save the annotation to the server\n      this.AnnotationService.saveAnnotation(annotation).then(() => {\n\n        // get the component states made by the student\n        var componentStates = this.DiscussionService.getPostsAssociatedWithWorkgroupId(this.componentId, this.workgroupId);\n\n        // get the annotations for the component states\n        var annotations = this.getInappropriateFlagAnnotationsByComponentStates(componentStates);\n\n        // refresh the teacher view of the posts\n        this.setClassResponses(componentStates, annotations);\n      });\n    }\n  }\n\n  /**\n   * The teacher has clicked the 'Undo Delete' button to undo a previous\n   * deletion of a post. This function will create an inappropriate flag\n   * annotation with the action set to 'Undo Delete'. This will make the\n   * post visible to the students.\n   * @param componentState the student component state the teacher wants to\n   * show again.\n   */\n  undodeletebuttonclicked(componentState) {\n\n    if (componentState != null) {\n\n      var toWorkgroupId = componentState.workgroupId;\n\n      var userInfo = this.ConfigService.getUserInfoByWorkgroupId(toWorkgroupId);\n\n      var periodId = null;\n\n      if (userInfo != null) {\n        periodId = userInfo.periodId;\n      }\n\n      var teacherUserInfo = this.ConfigService.getMyUserInfo();\n\n      var fromWorkgroupId = null;\n\n      if (teacherUserInfo != null) {\n        fromWorkgroupId = teacherUserInfo.workgroupId;\n      }\n\n      var runId = this.ConfigService.getRunId();\n      var nodeId = this.nodeId;\n      var componentId = this.componentId;\n      var studentWorkId = componentState.id;\n      var data = {};\n      data.action = 'Undo Delete';\n\n      // create the inappropriate flag annotation\n      var annotation = this.AnnotationService.createInappropriateFlagAnnotation(runId, periodId, nodeId, componentId, fromWorkgroupId, toWorkgroupId, studentWorkId, data);\n\n      // save the annotation to the server\n      this.AnnotationService.saveAnnotation(annotation).then(() => {\n\n        // get the component states made by the student\n        var componentStates = this.DiscussionService.getPostsAssociatedWithWorkgroupId(this.componentId, this.workgroupId);\n\n        // get the annotations for the component states\n        var annotations = this.getInappropriateFlagAnnotationsByComponentStates(componentStates);\n\n        // refresh the teacher view of the posts\n        this.setClassResponses(componentStates, annotations);\n      });\n    }\n  }\n\n  /**\n   * Get the inappropriate flag annotations for these component states\n   * @param componentStates an array of component states\n   * @return an array of inappropriate flag annotations that are associated\n   * with the component states\n   */\n  getInappropriateFlagAnnotationsByComponentStates(componentStates) {\n    var annotations = [];\n\n    if (componentStates != null) {\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n\n        var componentState = componentStates[c];\n\n        if (componentState != null) {\n\n          /*\n           * get the latest inappropriate flag annotation for the\n           * component state\n           */\n          var latestInappropriateFlagAnnotation = this.AnnotationService.getLatestAnnotationByStudentWorkIdAndType(componentState.id, 'inappropriateFlag');\n\n          if (latestInappropriateFlagAnnotation != null) {\n            annotations.push(latestInappropriateFlagAnnotation);\n          }\n        }\n      }\n    }\n\n    return annotations;\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      let mergedResponse = '';\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n\n        if (componentState != null) {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            // get the student response\n            let response = studentData.response;\n\n            if (response != null && response != '') {\n              if (mergedResponse != '') {\n                // add a new line between the responses\n                mergedResponse += '\\n';\n              }\n\n              // append the response\n              mergedResponse += response;\n            }\n          }\n        }\n      }\n\n      if (mergedResponse != null && mergedResponse != '') {\n        // set the merged response into the merged component state\n        mergedComponentState.studentData = {};\n        mergedComponentState.studentData.response = mergedResponse;\n      }\n    }\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'showWork';\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    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\ No newline at end of file
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DiscussionController {\n  constructor($filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      AnnotationService,\n      ConfigService,\n      DiscussionService,\n      NodeService,\n      NotificationService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      StudentWebSocketService,\n      UtilService,\n      $mdMedia) {\n\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.DiscussionService = DiscussionService;\n    this.NodeService = NodeService;\n    this.NotificationService = NotificationService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.StudentWebSocketService = StudentWebSocketService;\n    this.UtilService = UtilService;\n    this.idToOrder = this.ProjectService.idToOrder;\n    this.$mdMedia = $mdMedia;\n\n    this.$translate = this.$filter('translate');\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // holds the text that the student has typed\n    this.studentResponse = '';\n\n    // holds the text for a new response (not a reply)\n    this.newResponse = '';\n\n    // holds student attachments like assets\n    this.newAttachments = [];\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether this part is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // will hold the class responses\n    this.classResponses = [];\n\n    // will hold the top level responses\n    this.topLevelResponses = [];\n\n    // the text that is being submitted\n    this.submitText = null;\n\n    // map from component state id to response\n    this.responsesMap = {};\n\n    // whether rich text is enabled\n    this.isRichTextEnabled = false;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // whether we have retrieved the classmate responses\n    this.retrievedClassmateResponses = false;\n\n    // the latest annotations\n    this.latestAnnotations = null;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    this.workgroupId = null;\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      {\n        type: 'Discussion'\n      }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n\n      this.mode = this.$scope.mode;\n\n      if (this.$scope.workgroupId != null) {\n        this.workgroupId = this.$scope.workgroupId;\n      }\n\n      if (this.$scope.nodeId != null) {\n        this.nodeId = this.$scope.nodeId;\n      }\n\n      if (this.mode === 'student') {\n        if (this.ConfigService.isPreview()) {\n          let componentStates = null;\n          if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n            // assume there can only be one connected component\n            let connectedComponent = this.componentContent.connectedComponents[0];\n            if (this.authoringGetConnectedComponentType(connectedComponent) == 'Discussion') {\n              componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(\n                  connectedComponent.nodeId, connectedComponent.componentId);\n            }\n          } else {\n            componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(\n                this.nodeId, this.componentId);\n          }\n          this.setClassResponses(componentStates);\n        } else {\n          // we are in regular student run mode\n\n          if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n            // assume there can only be one connected component\n            let connectedComponent = this.componentContent.connectedComponents[0];\n            if (this.authoringGetConnectedComponentType(connectedComponent) == 'Discussion') {\n              this.getClassmateResponses(connectedComponent.nodeId, connectedComponent.componentId);\n            }\n          } else {\n            if (this.isClassmateResponsesGated()) {\n              /*\n               * classmate responses are gated so we will not show them if the student\n               * has not submitted a response\n               */\n\n              // get the component state from the scope\n              var componentState = this.$scope.componentState;\n\n              if (componentState != null) {\n                /*\n                 * the student has already submitted a response so we will\n                 * display the classmate responses\n                 */\n                this.getClassmateResponses();\n              }\n            } else {\n              // classmate responses are not gated so we will show them\n              this.getClassmateResponses();\n            }\n          }\n\n          // get the latest annotations\n          this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n        }\n\n        // check if we need to lock this component\n        this.calculateDisabled();\n      } else if (this.mode === 'grading' || this.mode === 'gradingRevision') {\n\n        /*\n         * get all the posts that this workgroup id is part of. if the student\n         * posted a top level response we will get the top level response and\n         * all the replies. if the student replied to a top level response we\n         * will get the top level response and all the replies.\n         */\n        var componentStates = this.DiscussionService.getPostsAssociatedWithWorkgroupId(this.componentId, this.workgroupId);\n\n        // get the innappropriate flag annotations for the component states\n        var annotations = this.getInappropriateFlagAnnotationsByComponentStates(componentStates);\n\n        // show the posts\n        this.setClassResponses(componentStates, annotations);\n\n        this.isDisabled = true;\n\n        if (this.mode === 'grading') {\n          // get the latest annotations\n          this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n        }\n      } else if (this.mode === 'onlyShowWork') {\n        this.isDisabled = true;\n      } else if (this.mode === 'showPreviousWork') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'authoring') {\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n        }.bind(this), true);\n      }\n\n      this.isRichTextEnabled = this.componentContent.isRichTextEnabled;\n\n      // set whether studentAttachment is enabled\n      this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n      if (this.$scope.$parent.nodeController != null) {\n        // register this component with the parent node\n        this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n      }\n    }\n\n    /**\n     * The submit button was clicked\n     * @param response the response object related to the submit button\n     */\n    this.$scope.submitbuttonclicked = function(response) {\n\n      if (response) {\n        // this submit button was clicked for a reply\n\n        if (response.replyText){\n          var componentState = response;\n\n          // get the component state id\n          var componentStateId = componentState.id;\n\n          /*\n           * remember the values in the controller so we can read\n           * from them later when the student data is saved\n           */\n          this.$scope.discussionController.studentResponse = componentState.replyText;\n          this.$scope.discussionController.componentStateIdReplyingTo = componentStateId;\n\n          // clear the reply input\n          response.replyText = null;\n\n          this.$scope.discussionController.isSubmit = true;\n          this.$scope.discussionController.isDirty = true;\n        }\n      } else {\n        // the submit button was clicked for the new post\n\n        /*\n         * set the response from the top textarea into the\n         * studentResponse field that we will read from later\n         * when the student data is saved\n         */\n        this.$scope.discussionController.studentResponse = this.$scope.discussionController.newResponse;\n\n        this.$scope.discussionController.isSubmit = true;\n      }\n\n      if (this.mode === 'authoring') {\n        this.createComponentState('submit');\n      }\n\n      // tell the parent node that this component wants to submit\n      this.$scope.$emit('componentSubmitTriggered', {nodeId: this.$scope.discussionController.nodeId, componentId: this.$scope.discussionController.componentId});\n    }.bind(this);\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @return a component state containing the student data\n     */\n    this.$scope.getComponentState = function() {\n      var deferred = this.$q.defer();\n\n      // check if the student work is dirty and the student clicked the submit button\n      if (this.$scope.discussionController.isDirty && this.$scope.discussionController.isSubmit) {\n\n        var action = 'submit';\n\n        // create a component state populated with the student data\n        this.$scope.discussionController.createComponentState(action).then((componentState) => {\n          /*\n           * clear the component values so they aren't accidentally used again\n           * later\n           */\n          this.$scope.discussionController.clearComponentValues();\n\n          // set isDirty to false since this student work is about to be saved\n          this.$scope.discussionController.isDirty = false;\n\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', (event, args) => {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n        this.isSubmit = true;\n      }\n    });\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', (event, args) => {\n\n      // do nothing\n    });\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', (event, args) => {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // check if the classmate responses are gated\n        if (this.isClassmateResponsesGated() && !this.retrievedClassmateResponses) {\n          /*\n           * the classmate responses are gated and we haven't retrieved\n           * them yet so we will obtain them now and show them since the student\n           * has just submitted a response. getting the classmate responses will\n           * also get the post the student just saved to the server.\n           */\n          this.getClassmateResponses();\n        } else {\n          /*\n           * the classmate responses are not gated or have already been retrieved\n           * which means they are already being displayed. we just need to add the\n           * new response in this case.\n           */\n\n          // add the component state to our collection of class responses\n          this.addClassResponse(componentState);\n        }\n\n        this.submit();\n\n        // send the student post to web sockets so all the classmates receive it in real time\n        let messageType = 'studentData';\n        componentState.userNamesArray = this.ConfigService.getUserNamesByWorkgroupId(componentState.workgroupId);\n\n        this.StudentWebSocketService.sendStudentToClassmatesInPeriodMessage(messageType, componentState);\n\n        // next, send notifications to students who have posted a response in the same thread as this post\n        let studentData = componentState.studentData;\n        if (studentData != null && this.responsesMap != null) {\n          let componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n          if (componentStateIdReplyingTo != null) {\n            // populate fields of the notification\n            let fromWorkgroupId = componentState.workgroupId;\n            let notificationType = 'DiscussionReply';\n            let nodeId = componentState.nodeId;\n            let componentId = componentState.componentId;\n            // add the user names to the component state so we can display next to the response\n            let userNamesArray = this.ConfigService.getUserNamesByWorkgroupId(fromWorkgroupId);\n            let userNames = userNamesArray.map( (obj) => {\n              return obj.name;\n            }).join(', ');\n            let notificationMessage = this.$translate('discussion.repliedToADiscussionYouWereIn', { userNames: userNames });\n\n            let workgroupsNotifiedSoFar = [];  // keep track of workgroups we've already notified, in case a workgroup posts twice on a thread we only want to notify once.\n            // check if we have the component state that was replied to\n            if (this.responsesMap[componentStateIdReplyingTo] != null) {\n              let originalPostComponentState = this.responsesMap[componentStateIdReplyingTo];\n              let toWorkgroupId = originalPostComponentState.workgroupId; // notify the workgroup who posted this reply\n              if (toWorkgroupId != null && toWorkgroupId != fromWorkgroupId) {\n                let notification = this.NotificationService.createNewNotification(notificationType, nodeId, componentId, fromWorkgroupId, toWorkgroupId, notificationMessage);\n                this.NotificationService.saveNotificationToServer(notification).then((savedNotification) => {\n                  let messageType = 'notification';\n                  this.StudentWebSocketService.sendStudentToClassmatesInPeriodMessage(messageType, savedNotification);\n                });\n                workgroupsNotifiedSoFar.push(toWorkgroupId);  // make sure we don't notify this workgroup again.\n              }\n\n              // also notify repliers to this thread, if any.\n              if (this.responsesMap[componentStateIdReplyingTo].replies != null) {\n                let replies = this.responsesMap[componentStateIdReplyingTo].replies;\n\n                for (let r = 0; r < replies.length; r++) {\n                  let reply = replies[r];\n                  let toWorkgroupId = reply.workgroupId; // notify the workgroup who posted this reply\n                  if (toWorkgroupId != null && toWorkgroupId != fromWorkgroupId && workgroupsNotifiedSoFar.indexOf(toWorkgroupId) == -1) {\n                    let notification = this.NotificationService.createNewNotification(notificationType, nodeId, componentId, fromWorkgroupId, toWorkgroupId, notificationMessage);\n                    this.NotificationService.saveNotificationToServer(notification).then((savedNotification) => {\n                      let messageType = 'notification';\n                      this.StudentWebSocketService.sendStudentToClassmatesInPeriodMessage(messageType, savedNotification);\n                    });\n                    workgroupsNotifiedSoFar.push(toWorkgroupId);  // make sure we don't notify this workgroup again.\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n\n      this.isSubmit = null;\n    });\n\n    this.$scope.studentdatachanged = function() {\n      this.$scope.discussionController.studentDataChanged();\n    };\n\n    /**\n     * We have recived a web socket message\n     */\n    this.$rootScope.$on('webSocketMessageRecieved', (event, args) => {\n      if (args != null) {\n        var data = args.data;\n\n        var componentState = data.data;\n\n        if (componentState != null) {\n\n          // check that the web socket message is for this step\n          if (componentState.nodeId === this.nodeId) {\n\n            // get the sender of the message\n            var componentStateWorkgroupId = componentState.workgroupId;\n\n            // get the workgroup id of the signed in student\n            var workgroupId = this.ConfigService.getWorkgroupId();\n\n            /*\n             * check if the signed in student sent the message. if the\n             * signed in student sent the message we can ignore it.\n             */\n            if (workgroupId !== componentStateWorkgroupId) {\n\n              if (this.retrievedClassmateResponses) {\n                // display the classmate post\n                this.addClassResponse(componentState);\n              }\n            }\n          }\n        }\n      }\n    });\n\n    var scope = this;\n    var themePath = this.ProjectService.getThemePath();\n\n    // TODO: make toolbar items and plugins customizable by authors?\n    // Rich text editor options\n    this.tinymceOptions = {\n      //onChange: function(e) {\n      //scope.studentDataChanged();\n      //},\n      menubar: false,\n      plugins: 'link autoresize',\n      toolbar: 'superscript subscript',\n      autoresize_bottom_margin: '0',\n      autoresize_min_height: '100',\n      image_advtab: true,\n      content_css: themePath + '/style/tinymce.css',\n      statusbar: false,\n      forced_root_block: false,\n      setup: function (ed) {\n        ed.on('focus', function (e) {\n          $(e.target.editorContainer).addClass('input--focused').parent().addClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').addClass('input-label--focused');\n        });\n\n        ed.on('blur', function (e) {\n          $(e.target.editorContainer).removeClass('input--focused').parent().removeClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').removeClass('input-label--focused');\n        });\n      }\n    };\n\n    this.$scope.$watch(function() { return $mdMedia('gt-sm'); }, function(md) {\n      $scope.mdScreen = md;\n    });\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n          this.UtilService.hideJSONValidMessage();\n        }\n      }\n    });\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }\n\n  /**\n   * Get the classmate responses\n   */\n  getClassmateResponses(nodeId = this.nodeId, componentId = this.componentId) {\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n\n    // make the request for the classmate responses\n    this.DiscussionService.getClassmateResponses(runId, periodId, nodeId, componentId).then((result) => {\n\n      if (result != null) {\n        var componentStates = result.studentWorkList;\n\n        /*\n         * get the annotations in case there are any that have\n         * inappropriate flags\n         */\n        var annotations = result.annotations;\n\n        // set the classmate responses\n        this.setClassResponses(componentStates, annotations);\n      }\n    });\n  };\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n      // populate the text the student previously typed\n      var studentData = componentState.studentData;\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    this.isSubmit = true;\n\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n\n    // handle the submit button click\n    this.$scope.submitbuttonclicked();\n  };\n\n  submit() {\n    if (this.isLockAfterSubmit()) {\n      // disable the component if it was authored to lock after submit\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flag so we will know we need to save the\n     * student work later\n     */\n    this.isDirty = true;\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    if (componentState != null) {\n      var studentData = {};\n\n      // set the response into the component state\n      studentData.response = this.studentResponse;\n\n      studentData.attachments = this.newAttachments;\n\n      if (this.componentStateIdReplyingTo != null) {\n        // if this step is replying, set the component state id replying to\n        studentData.componentStateIdReplyingTo = this.componentStateIdReplyingTo;\n      }\n\n      componentState.studentData = studentData;\n\n      // set the component type\n      componentState.componentType = 'Discussion';\n\n      // set the node id\n      componentState.nodeId = this.nodeId;\n\n      // set the component id\n      componentState.componentId = this.componentId;\n\n      if ((this.ConfigService.isPreview() && !this.componentStateIdReplyingTo) || this.mode === 'authoring') {\n        // create a dummy component state id if we're in preview mode and posting a new response\n        componentState.id = this.UtilService.generateKey();\n      }\n\n      if (this.isSubmit) {\n        // the student submitted this work\n        componentState.studentData.isSubmit = this.isSubmit;\n\n        /*\n         * reset the isSubmit value so that the next component state\n         * doesn't maintain the same value\n         */\n        this.isSubmit = false;\n\n        if (this.mode === 'authoring') {\n          if (this.StudentDataService.studentData == null) {\n            /*\n             * initialize the student data since this usually doesn't\n             * occur in the authoring mode\n             */\n            this.StudentDataService.studentData = {};\n            this.StudentDataService.studentData.componentStates = [];\n          }\n\n          // add the component state to the StudentDataService studentData\n          this.StudentDataService.studentData.componentStates.push(componentState);\n\n          // get the component states for this component\n          var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n          // set the component states into the component\n          this.setClassResponses(componentStates);\n\n          /*\n           * clear the input where the user has entered the text they\n           * are posting\n           */\n          this.clearComponentValues();\n          this.isDirty = false;\n        }\n      }\n    }\n\n    var deferred = this.$q.defer();\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n    /*\n     * we don't need to perform any additional processing so we can resolve\n     * the promise immediately\n     */\n    deferred.resolve(componentState);\n  }\n\n  /**\n   * Clear the component values so they aren't accidentally used again\n   */\n  clearComponentValues() {\n\n    // clear the student response\n    this.studentResponse = '';\n\n    // clear the new response input\n    this.newResponse = '';\n\n    // clear new attachments input\n    this.newAttachments = [];\n\n    // clear the component state id replying to\n    this.componentStateIdReplyingTo = null;\n  };\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    var nodeId = this.nodeId;\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the step after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n      if (this.UtilService.hasConnectedComponent(componentContent)) {\n        for (let connectedComponent of componentContent.connectedComponents) {\n          if (connectedComponent.type == 'showWork') {\n            this.isDisabled = true;\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Check whether we need to show the save button\n   * @return whether to show the save button\n   */\n  showSaveButton() {\n    var show = false;\n\n    if (this.componentContent != null) {\n\n      // check the showSaveButton field in the component content\n      if (this.componentContent.showSaveButton) {\n        show = true;\n      }\n    }\n\n    return show;\n  };\n\n  /**\n   * Check whether we need to show the submit button\n   * @return whether to show the submit button\n   */\n  showSubmitButton() {\n    var show = false;\n\n    if (this.componentContent != null) {\n\n      // check the showSubmitButton field in the component content\n      if (this.componentContent.showSubmitButton) {\n        show = true;\n      }\n    }\n\n    return show;\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   * @return whether to lock the component after the student submits\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Check whether we need to gate the classmate responses\n   * @return whether to gate the classmate responses\n   */\n  isClassmateResponsesGated() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the gateClassmateResponses field in the component content\n      if (this.componentContent.gateClassmateResponses) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  removeAttachment(attachment) {\n    if (this.newAttachments.indexOf(attachment) != -1) {\n      this.newAttachments.splice(this.newAttachments.indexOf(attachment), 1);\n      this.studentDataChanged();\n    }\n  };\n\n  /**\n   * Attach student asset to this Component's attachments\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          var attachment = {\n            studentAssetId: copiedAsset.id,\n            iconURL: copiedAsset.iconURL\n          };\n\n          this.newAttachments.push(attachment);\n          this.studentDataChanged();\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the number of rows for the textarea\n   */\n  getNumRows() {\n    var numRows = null;\n\n    if (this.componentContent != null) {\n      numRows = this.componentContent.numRows;\n    }\n\n    return numRows;\n  };\n\n  /**\n   * Import work from another component\n   */\n  importWork() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      var importWorkNodeId = componentContent.importWorkNodeId;\n      var importWorkComponentId = componentContent.importWorkComponentId;\n\n      if (importWorkNodeId != null && importWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importWorkNodeId, importWorkComponentId);\n\n          if (importWorkComponentState != null) {\n            /*\n             * populate a new component state with the work from the\n             * imported component state\n             */\n            var populatedComponentState = this.DiscussionService.populateComponentState(importWorkComponentState);\n\n            // populate the component state into this component\n            this.setStudentWork(populatedComponentState);\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * Set the class responses into the controller\n   * @param componentStates the class component states\n   * @param annotations the inappropriate flag annotations\n   */\n  setClassResponses(componentStates, annotations) {\n\n    this.classResponses = [];\n\n    if (componentStates != null) {\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n        var componentState = componentStates[c];\n\n        if (componentState != null) {\n\n          // get the component state id\n          var id = componentState.id;\n\n          // get the workgroup id\n          var workgroupId = componentState.workgroupId;\n\n          // get the student data\n          var studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            if (componentState.studentData.isSubmit) {\n\n              // get the latest inappropriate flag for this compnent state\n              var latestInappropriateFlagAnnotation = this.getLatestInappropriateFlagAnnotationByStudentWorkId(annotations, componentState.id);\n\n              // add the user names to the component state so we can display next to the response\n              let userNames = this.ConfigService.getUserNamesByWorkgroupId(workgroupId);\n              componentState.userNames = userNames.map(function(obj) { return obj.name; }).join(', ');\n\n              // add a replies array to the component state that we will fill with component state replies later\n              componentState.replies = [];\n\n              if (this.mode == 'grading' || this.mode == 'gradingRevision') {\n\n                if (latestInappropriateFlagAnnotation != null) {\n                  /*\n                   * Set the inappropriate flag annotation into\n                   * the component state. This is used for the\n                   * grading tool to determine whether to show\n                   * the 'Delete' button or the 'Undo Delete'\n                   * button.\n                   */\n                  componentState.latestInappropriateFlagAnnotation = latestInappropriateFlagAnnotation;\n                }\n\n                // add the component state to our array\n                this.classResponses.push(componentState);\n              } else if (this.mode == 'student') {\n\n                if (latestInappropriateFlagAnnotation != null &&\n                  latestInappropriateFlagAnnotation.data != null &&\n                  latestInappropriateFlagAnnotation.data.action == 'Delete') {\n\n                  // do not show this post because the teacher has deleted it\n                } else {\n                  // add the component state to our array\n                  this.classResponses.push(componentState);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    // process the class responses\n    this.processResponses(this.classResponses);\n\n    this.retrievedClassmateResponses = true;\n  };\n\n  /**\n   * Get the latest inappropriate flag annotation for a student work id\n   * @param annotations an array of annotations\n   * @param studentWorkId a student work id\n   * @return the latest inappropriate flag annotation for the given student\n   * work id\n   */\n  getLatestInappropriateFlagAnnotationByStudentWorkId(annotations, studentWorkId) {\n\n    if (annotations != null) {\n\n      // loop through all the annotations from newest to oldest\n      for (var a = annotations.length - 1; a >= 0; a--) {\n        var annotation = annotations[a];\n\n        if (annotation != null) {\n          if (studentWorkId == annotation.studentWorkId && annotation.type == 'inappropriateFlag') {\n            /*\n             * we have found an inappropriate flag annotation for\n             * the student work id we are looking for\n             */\n            return annotation;\n          }\n        }\n      }\n    }\n\n    return null;\n  }\n\n  /**\n   * Process the class responses. This will put responses into the\n   * replies arrays.\n   * @param classResponses an array of component states\n   */\n  processResponses(componentStates) {\n\n    if (componentStates) {\n      var componentState;\n\n      // loop through all the component states\n      for (var i = 0; i < componentStates.length; i++) {\n        componentState = componentStates[i];\n\n        if (componentState) {\n          var componentStateId = componentState.id;\n\n          // set the component state into the map\n          this.responsesMap[componentStateId] = componentState;\n        }\n      }\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n        componentState = componentStates[c];\n\n        if (componentState && componentState.studentData) {\n\n          // get the student data\n          var studentData = componentState.studentData;\n\n          // get the component state id replying to if any\n          var componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n\n          if (componentStateIdReplyingTo) {\n\n            if (this.responsesMap[componentStateIdReplyingTo] &&\n              this.responsesMap[componentStateIdReplyingTo].replies) {\n              /*\n               * add this component state to the replies array of the\n               * component state that was replied to\n               */\n              this.responsesMap[componentStateIdReplyingTo].replies.push(componentState);\n            }\n          }\n        }\n      }\n\n      this.topLevelResponses = this.getLevel1Responses();\n    }\n  };\n\n  /**\n   * Add a class response to our model\n   * @param componentState the component state to add to our model\n   */\n  addClassResponse(componentState) {\n\n    if (componentState != null) {\n\n      // get the student data\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        if (componentState.studentData.isSubmit) {\n          // this component state is a submit, so we will add it\n\n          // get the workgroup id\n          var workgroupId = componentState.workgroupId;\n\n          // add the user names to the component state so we can display next to the response\n          let userNames = this.ConfigService.getUserNamesByWorkgroupId(workgroupId);\n          if (userNames.length > 0) {\n            componentState.userNames = userNames.map(function(obj) { return obj.name; }).join(', ');\n          } else if (componentState.userNamesArray != null) {\n            componentState.userNames = componentState.userNamesArray\n                .map(function(obj) { return obj.name; }).join(', ');\n          }\n\n          // add a replies array to the component state that we will fill with component state replies later\n          componentState.replies = [];\n\n          // add the component state to our array of class responses\n          this.classResponses.push(componentState);\n\n          // get the component state id\n          var componentStateId = componentState.id;\n\n          // add the response to our map\n          this.responsesMap[componentStateId] = componentState;\n\n          // get the component state id replying to if any\n          var componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n\n          if (componentStateIdReplyingTo != null) {\n\n            // check if we have the component state that was replied to\n            if (this.responsesMap[componentStateIdReplyingTo] != null &&\n              this.responsesMap[componentStateIdReplyingTo].replies != null) {\n              /*\n               * add this response to the replies array of the response\n               * that was replied to\n               */\n              this.responsesMap[componentStateIdReplyingTo].replies.push(componentState);\n            }\n          }\n\n          this.topLevelResponses = this.getLevel1Responses();\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the class responses\n   */\n  getClassResponses() {\n    return this.classResponses;\n  };\n\n  /**\n   * Get the level 1 responses which are posts that are not a\n   * reply to another response.\n   * @return an array of responses that are not a reply to another\n   * response\n   */\n  getLevel1Responses() {\n    var level1Responses = [];\n    var classResponses = this.classResponses;\n\n    if (classResponses != null) {\n\n      // loop through all the class responses\n      for (var r = 0; r < classResponses.length; r++) {\n        var tempClassResponse = classResponses[r];\n\n        if (tempClassResponse != null && tempClassResponse.studentData) {\n\n          // get the student data\n          var studentData = tempClassResponse.studentData;\n\n          // get the component state id replying to if any\n          var componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n\n          if (componentStateIdReplyingTo == null) {\n            /*\n             * this response was not a reply to another post so it is a\n             * level 1 response\n             */\n            level1Responses.push(tempClassResponse);\n          }\n        }\n      }\n    }\n\n    return level1Responses;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  saveJSONAuthoringViewChanges() {\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n\n      // scroll to the top of the component\n      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });\n      this.jsonStringChanged = false;\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    this.exitListener = this.$scope.$on('exit', (event, args) => {\n      // do nothing\n      this.$rootScope.$broadcast('doneExiting');\n    });\n  };\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a connected component\n   */\n  addConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.updateOn = 'change';\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  deleteConnectedComponent(index) {\n\n    if (this.authoringComponentContent.connectedComponents != null) {\n      this.authoringComponentContent.connectedComponents.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The teacher has clicked the delete button to delete a post. We won't\n   * actually delete the student work, we'll just create an inappropriate\n   * flag annotation which prevents the students in the class from seeing\n   * the post.\n   * @param componentState the student component state the teacher wants to\n   * delete.\n   */\n  deletebuttonclicked(componentState) {\n\n    if (componentState != null) {\n\n      var toWorkgroupId = componentState.workgroupId;\n\n      var userInfo = this.ConfigService.getUserInfoByWorkgroupId(toWorkgroupId);\n\n      var periodId = null;\n\n      if (userInfo != null) {\n        periodId = userInfo.periodId;\n      }\n\n      var teacherUserInfo = this.ConfigService.getMyUserInfo();\n\n      var fromWorkgroupId = null;\n\n      if (teacherUserInfo != null) {\n        fromWorkgroupId = teacherUserInfo.workgroupId;\n      }\n\n      var runId = this.ConfigService.getRunId();\n      var nodeId = this.nodeId;\n      var componentId = this.componentId;\n      var studentWorkId = componentState.id;\n      var data = {};\n      data.action = 'Delete';\n\n      // create the inappropriate flag 'Delete' annotation\n      var annotation = this.AnnotationService.createInappropriateFlagAnnotation(runId, periodId, nodeId, componentId, fromWorkgroupId, toWorkgroupId, studentWorkId, data);\n\n      // save the annotation to the server\n      this.AnnotationService.saveAnnotation(annotation).then(() => {\n\n        // get the component states made by the student\n        var componentStates = this.DiscussionService.getPostsAssociatedWithWorkgroupId(this.componentId, this.workgroupId);\n\n        // get the annotations for the component states\n        var annotations = this.getInappropriateFlagAnnotationsByComponentStates(componentStates);\n\n        // refresh the teacher view of the posts\n        this.setClassResponses(componentStates, annotations);\n      });\n    }\n  }\n\n  /**\n   * The teacher has clicked the 'Undo Delete' button to undo a previous\n   * deletion of a post. This function will create an inappropriate flag\n   * annotation with the action set to 'Undo Delete'. This will make the\n   * post visible to the students.\n   * @param componentState the student component state the teacher wants to\n   * show again.\n   */\n  undodeletebuttonclicked(componentState) {\n\n    if (componentState != null) {\n\n      var toWorkgroupId = componentState.workgroupId;\n\n      var userInfo = this.ConfigService.getUserInfoByWorkgroupId(toWorkgroupId);\n\n      var periodId = null;\n\n      if (userInfo != null) {\n        periodId = userInfo.periodId;\n      }\n\n      var teacherUserInfo = this.ConfigService.getMyUserInfo();\n\n      var fromWorkgroupId = null;\n\n      if (teacherUserInfo != null) {\n        fromWorkgroupId = teacherUserInfo.workgroupId;\n      }\n\n      var runId = this.ConfigService.getRunId();\n      var nodeId = this.nodeId;\n      var componentId = this.componentId;\n      var studentWorkId = componentState.id;\n      var data = {};\n      data.action = 'Undo Delete';\n\n      // create the inappropriate flag annotation\n      var annotation = this.AnnotationService.createInappropriateFlagAnnotation(runId, periodId, nodeId, componentId, fromWorkgroupId, toWorkgroupId, studentWorkId, data);\n\n      // save the annotation to the server\n      this.AnnotationService.saveAnnotation(annotation).then(() => {\n\n        // get the component states made by the student\n        var componentStates = this.DiscussionService.getPostsAssociatedWithWorkgroupId(this.componentId, this.workgroupId);\n\n        // get the annotations for the component states\n        var annotations = this.getInappropriateFlagAnnotationsByComponentStates(componentStates);\n\n        // refresh the teacher view of the posts\n        this.setClassResponses(componentStates, annotations);\n      });\n    }\n  }\n\n  /**\n   * Get the inappropriate flag annotations for these component states\n   * @param componentStates an array of component states\n   * @return an array of inappropriate flag annotations that are associated\n   * with the component states\n   */\n  getInappropriateFlagAnnotationsByComponentStates(componentStates) {\n    var annotations = [];\n\n    if (componentStates != null) {\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n\n        var componentState = componentStates[c];\n\n        if (componentState != null) {\n\n          /*\n           * get the latest inappropriate flag annotation for the\n           * component state\n           */\n          var latestInappropriateFlagAnnotation = this.AnnotationService.getLatestAnnotationByStudentWorkIdAndType(componentState.id, 'inappropriateFlag');\n\n          if (latestInappropriateFlagAnnotation != null) {\n            annotations.push(latestInappropriateFlagAnnotation);\n          }\n        }\n      }\n    }\n\n    return annotations;\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      let mergedResponse = '';\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n\n        if (componentState != null) {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            // get the student response\n            let response = studentData.response;\n\n            if (response != null && response != '') {\n              if (mergedResponse != '') {\n                // add a new line between the responses\n                mergedResponse += '\\n';\n              }\n\n              // append the response\n              mergedResponse += response;\n            }\n          }\n        }\n      }\n\n      if (mergedResponse != null && mergedResponse != '') {\n        // set the merged response into the merged component state\n        mergedComponentState.studentData = {};\n        mergedComponentState.studentData.response = mergedResponse;\n      }\n    }\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'showWork';\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The show JSON button was clicked to show or hide the JSON authoring\n   */\n  showJSONButtonClicked() {\n    if (this.showJSONAuthoring) {\n      // we were showing the JSON authoring view and now we want to hide it\n      if (this.isJSONValid()) {\n        this.saveJSONAuthoringViewChanges();\n        this.toggleJSONAuthoringView();\n        this.UtilService.hideJSONValidMessage();\n      } else {\n        let answer = confirm(this.$translate('jsonInvalidErrorMessage'));\n        if (answer) {\n          // the author wants to revert back to the last valid JSON\n          this.toggleJSONAuthoringView();\n          this.UtilService.hideJSONValidMessage();\n          this.jsonStringChanged = true;\n        }\n      }\n    } else {\n      // we were not showing the JSON authoring view and now we want to show it\n      this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n      this.toggleJSONAuthoringView();\n    }\n  }\n\n  toggleJSONAuthoringView() {\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n  }\n\n  /**\n   * The author has changed the JSON manually in the advanced view\n   */\n  authoringJSONChanged() {\n    this.jsonStringChanged = true;\n    if (this.isJSONValid()) {\n      this.UtilService.showJSONValidMessage();\n    } else {\n      this.UtilService.showJSONInvalidMessage();\n    }\n  }\n\n  isJSONValid() {\n    try {\n      angular.fromJson(this.authoringComponentContentJSONString);\n      return true;\n    } catch (e) {\n      return false;\n    }\n  }\n}\n\nDiscussionController.$inject = [\n  '$filter',\n  '$injector',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$scope',\n  'AnnotationService',\n  'ConfigService',\n  'DiscussionService',\n  'NodeService',\n  'NotificationService',\n  'ProjectService',\n  'StudentAssetService',\n  'StudentDataService',\n  'StudentWebSocketService',\n  'UtilService',\n  '$mdMedia'\n];\n\nexport default DiscussionController;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/discussion/discussionService.es6 b/src/main/webapp/wise5/components/discussion/discussionService.es6
index 87e24d9f2f..ffa7030566 100644
--- a/src/main/webapp/wise5/components/discussion/discussionService.es6
+++ b/src/main/webapp/wise5/components/discussion/discussionService.es6
@@ -1,6 +1,6 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class DiscussionService extends NodeService {
+class DiscussionService extends ComponentService {
   constructor($filter,
       $http,
       $rootScope,
@@ -9,64 +9,31 @@ class DiscussionService extends NodeService {
       ConfigService,
       StudentDataService,
       UtilService) {
-    super();
-
-    this.$filter = $filter;
+    super($filter, StudentDataService, UtilService);
     this.$http = $http;
     this.$rootScope = $rootScope;
     this.$q = $q;
     this.$injector = $injector;
     this.ConfigService = ConfigService;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-
-    this.$translate = this.$filter('translate');
-
     if (this.ConfigService != null && this.ConfigService.getMode() == 'classroomMonitor') {
       // in the classroom monitor, we need access to the TeacherDataService so it can retrieve posts and replies for all students
       this.TeacherDataService = this.$injector.get('TeacherDataService');
     }
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Discussion"
-   */
   getComponentTypeLabel() {
     return this.$translate('discussion.componentTypeLabel');
   }
 
-  /**
-   * Create a Discussion component object
-   * @returns a new Discussion component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'Discussion';
     component.prompt = this.$translate('ENTER_PROMPT_HERE');
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     component.isStudentAttachmentEnabled = true;
     component.gateClassmateResponses = true;
     return component;
   }
 
-  /**
-   * Copies an existing Discussion component object
-   * @returns a copied Discussion component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;
-    component.gateClassmateResponses = componentToCopy.gateClassmateResponses;
-    return component;
-  }
-
   populateComponentState(componentStateFromOtherComponent, otherComponentType) {
     var componentState = null;
 
@@ -110,14 +77,6 @@ class DiscussionService extends NodeService {
     }
   };
 
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents) {
     var result = false;
 
@@ -253,42 +212,14 @@ class DiscussionService extends NodeService {
     return postAndAllReplies;
   };
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
   componentUsesSaveButton() {
     return false;
   }
 
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
   componentUsesSubmitButton() {
     return false;
   }
 
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
 
     if (componentState != null) {
diff --git a/src/main/webapp/wise5/components/discussion/discussionService.js b/src/main/webapp/wise5/components/discussion/discussionService.js
index a31cc04b79..2f7028a800 100644
--- a/src/main/webapp/wise5/components/discussion/discussionService.js
+++ b/src/main/webapp/wise5/components/discussion/discussionService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,25 +20,19 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var DiscussionService = function (_NodeService) {
-  _inherits(DiscussionService, _NodeService);
+var DiscussionService = function (_ComponentService) {
+  _inherits(DiscussionService, _ComponentService);
 
   function DiscussionService($filter, $http, $rootScope, $q, $injector, ConfigService, StudentDataService, UtilService) {
     _classCallCheck(this, DiscussionService);
 
-    var _this = _possibleConstructorReturn(this, (DiscussionService.__proto__ || Object.getPrototypeOf(DiscussionService)).call(this));
+    var _this = _possibleConstructorReturn(this, (DiscussionService.__proto__ || Object.getPrototypeOf(DiscussionService)).call(this, $filter, StudentDataService, UtilService));
 
-    _this.$filter = $filter;
     _this.$http = $http;
     _this.$rootScope = $rootScope;
     _this.$q = $q;
     _this.$injector = $injector;
     _this.ConfigService = ConfigService;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-
-    _this.$translate = _this.$filter('translate');
-
     if (_this.ConfigService != null && _this.ConfigService.getMode() == 'classroomMonitor') {
       // in the classroom monitor, we need access to the TeacherDataService so it can retrieve posts and replies for all students
       _this.TeacherDataService = _this.$injector.get('TeacherDataService');
@@ -44,54 +40,21 @@ var DiscussionService = function (_NodeService) {
     return _this;
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Discussion"
-   */
-
-
   _createClass(DiscussionService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('discussion.componentTypeLabel');
     }
-
-    /**
-     * Create a Discussion component object
-     * @returns a new Discussion component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(DiscussionService.prototype.__proto__ || Object.getPrototypeOf(DiscussionService.prototype), 'createComponent', this).call(this);
       component.type = 'Discussion';
       component.prompt = this.$translate('ENTER_PROMPT_HERE');
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       component.isStudentAttachmentEnabled = true;
       component.gateClassmateResponses = true;
       return component;
     }
-
-    /**
-     * Copies an existing Discussion component object
-     * @returns a copied Discussion component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;
-      component.gateClassmateResponses = componentToCopy.gateClassmateResponses;
-      return component;
-    }
   }, {
     key: 'populateComponentState',
     value: function populateComponentState(componentStateFromOtherComponent, otherComponentType) {
@@ -139,16 +102,6 @@ var DiscussionService = function (_NodeService) {
     }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents) {
       var result = false;
 
@@ -289,53 +242,16 @@ var DiscussionService = function (_NodeService) {
 
       return postAndAllReplies;
     }
-  }, {
-    key: 'componentHasWork',
-
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
   }, {
     key: 'componentUsesSaveButton',
     value: function componentUsesSaveButton() {
       return false;
     }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
   }, {
     key: 'componentUsesSubmitButton',
     value: function componentUsesSubmitButton() {
       return false;
     }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -391,7 +307,7 @@ var DiscussionService = function (_NodeService) {
   }]);
 
   return DiscussionService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 DiscussionService.$inject = ['$filter', '$http', '$rootScope', '$q', '$injector', 'ConfigService', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/discussion/discussionService.js.map b/src/main/webapp/wise5/components/discussion/discussionService.js.map
index 55d64c304b..e5dfb508b3 100644
--- a/src/main/webapp/wise5/components/discussion/discussionService.js.map
+++ b/src/main/webapp/wise5/components/discussion/discussionService.js.map
@@ -1 +1 @@
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NodeService from '../../services/nodeService';\n\nclass DiscussionService extends NodeService {\n  constructor($filter,\n      $http,\n      $rootScope,\n      $q,\n      $injector,\n      ConfigService,\n      StudentDataService,\n      UtilService) {\n    super();\n\n    this.$filter = $filter;\n    this.$http = $http;\n    this.$rootScope = $rootScope;\n    this.$q = $q;\n    this.$injector = $injector;\n    this.ConfigService = ConfigService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n\n    if (this.ConfigService != null && this.ConfigService.getMode() == 'classroomMonitor') {\n      // in the classroom monitor, we need access to the TeacherDataService so it can retrieve posts and replies for all students\n      this.TeacherDataService = this.$injector.get('TeacherDataService');\n    }\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Discussion\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('discussion.componentTypeLabel');\n  }\n\n  /**\n   * Create a Discussion component object\n   * @returns a new Discussion component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'Discussion';\n    component.prompt = this.$translate('ENTER_PROMPT_HERE');\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.isStudentAttachmentEnabled = true;\n    component.gateClassmateResponses = true;\n    return component;\n  }\n\n  /**\n   * Copies an existing Discussion component object\n   * @returns a copied Discussion component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;\n    component.gateClassmateResponses = componentToCopy.gateClassmateResponses;\n    return component;\n  }\n\n  populateComponentState(componentStateFromOtherComponent, otherComponentType) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null && otherComponentType != null) {\n      componentState = StudentDataService.createComponentState();\n\n      if (otherComponentType === 'OpenResponse') {\n        componentState.studentData = componentStateFromOtherComponent.studentData;\n      }\n    }\n\n    return componentState;\n  };\n\n  getClassmateResponses(runId, periodId, nodeId, componentId) {\n\n    if (runId != null && periodId != null && nodeId != null && componentId != null) {\n      return this.$q(angular.bind(this, function(resolve, reject) {\n\n        var httpParams = {};\n        httpParams.method = 'GET';\n        httpParams.url = this.ConfigService.getConfigParam('studentDataURL');\n\n        var params = {};\n        params.runId = runId;\n        params.periodId = periodId;\n        params.nodeId = nodeId;\n        params.componentId = componentId;\n        params.getStudentWork = true;\n        params.getAnnotations = true;\n        httpParams.params = params;\n\n        this.$http(httpParams).then(angular.bind(this, function(result) {\n          var classmateData = result.data;\n\n          //console.log(classmateData);\n\n          resolve(classmateData);\n        }));\n      }));\n    }\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents) {\n    var result = false;\n\n    if (componentStates != null) {\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n\n        // the component state\n        var componentState = componentStates[c];\n\n        // get the student data from the component state\n        var studentData = componentState.studentData;\n\n        if (studentData != null) {\n          var response = studentData.response;\n\n          if (response != null) {\n            // there is a response so the component is completed\n            result = true;\n            break;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Get all the posts associated with a workgroup id. This will\n   * get all the posts and replies that the workgroup posted\n   * or replied to as well as all the other replies classmates made.\n   * @param componentId the component id\n   * @param workgroupId the workgroup id\n   * @returns an array containing all the component states for\n   * top level posts and replies that are associated with the\n   * workgroup\n   */\n  getPostsAssociatedWithWorkgroupId(componentId, workgroupId) {\n    var allPosts = [];\n\n    var topLevelComponentIdsFound = [];\n\n    // get all the component states for the workgroup id\n    var componentStates = this.TeacherDataService.getComponentStatesByWorkgroupIdAndComponentId(workgroupId, componentId);\n\n    if (componentStates != null) {\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n\n        var componentState = componentStates[c];\n\n        if (componentState != null) {\n          var studentData = componentState.studentData;\n\n          if (studentData != null) {\n            if (studentData.componentStateIdReplyingTo == null) {\n\n              // check if we have already added the top level post\n              if (topLevelComponentIdsFound.indexOf(componentState.id) == -1) {\n                // we haven't found the top level post yet so\n\n                /*\n                 * the component state is a top level post so we will\n                 * get the post and all the replies to the post\n                 */\n                allPosts = allPosts.concat(this.getPostAndAllReplies(componentId, componentState.id));\n\n                topLevelComponentIdsFound.push(componentState.id);\n              }\n            } else {\n\n              // check if we have already added the top level post\n              if (topLevelComponentIdsFound.indexOf(studentData.componentStateIdReplyingTo) == -1) {\n                // we haven't found the top level post yet so\n\n                /*\n                 * the component state is a reply so we will get the\n                 * top level post and all the replies to it\n                 */\n                allPosts = allPosts.concat(this.getPostAndAllReplies(componentId, studentData.componentStateIdReplyingTo));\n\n                topLevelComponentIdsFound.push(studentData.componentStateIdReplyingTo);\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return allPosts;\n  }\n\n  /**\n   * Get the top level post and all the replies to it\n   * @param componentId the component id\n   * @param componentStateId the component state id\n   * @returns an array containing the top level post and all the replies\n   */\n  getPostAndAllReplies(componentId, componentStateId) {\n    var postAndAllReplies = [];\n\n    // get all the component states for the node\n    var componentStatesForNodeId = this.TeacherDataService.getComponentStatesByComponentId(componentId);\n\n    for (var c = 0; c < componentStatesForNodeId.length; c++) {\n      var tempComponentState = componentStatesForNodeId[c];\n\n      if (tempComponentState != null) {\n        if (componentStateId === tempComponentState.id) {\n          // we have found the top level post\n          postAndAllReplies.push(tempComponentState);\n        } else {\n          // check if the component state is a reply to the post we are looking for\n          var studentData = tempComponentState.studentData;\n\n          if (studentData != null) {\n            var componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n\n            if (componentStateIdReplyingTo != null) {\n              if (componentStateId === componentStateIdReplyingTo) {\n                // this is a reply to the post we are looking for\n                postAndAllReplies.push(tempComponentState);\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return postAndAllReplies;\n  };\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return false;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return false;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the response from the student data\n        let response = studentData.response;\n\n        if (componentContent == null) {\n          // the component content was not provided\n\n          if (response != null && response !== '') {\n            // the student has work\n            return true;\n          }\n        } else {\n          // the component content was provided\n\n          let starterSentence = componentContent.starterSentence;\n\n          if (starterSentence == null || starterSentence === '') {\n            // there is no starter sentence\n\n            if (response != null && response !== '') {\n              // the student has work\n              return true;\n            }\n          } else {\n            /*\n             * there is a starter sentence so we will compare it\n             * with the student response\n             */\n\n            if (response != null && response !== '' && response !== starterSentence) {\n              /*\n               * the student has a response that is different than\n               * the starter sentence\n               */\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n}\n\nDiscussionService.$inject = [\n  '$filter',\n  '$http',\n  '$rootScope',\n  '$q',\n  '$injector',\n  'ConfigService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default DiscussionService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["discussionService.es6"],"names":["DiscussionService","$filter","$http","$rootScope","$q","$injector","ConfigService","StudentDataService","UtilService","getMode","TeacherDataService","get","$translate","component","type","prompt","isStudentAttachmentEnabled","gateClassmateResponses","componentStateFromOtherComponent","otherComponentType","componentState","createComponentState","studentData","runId","periodId","nodeId","componentId","angular","bind","resolve","reject","httpParams","method","url","getConfigParam","params","getStudentWork","getAnnotations","then","result","classmateData","data","componentStates","componentEvents","nodeEvents","c","length","response","workgroupId","allPosts","topLevelComponentIdsFound","getComponentStatesByWorkgroupIdAndComponentId","componentStateIdReplyingTo","indexOf","id","concat","getPostAndAllReplies","push","componentStateId","postAndAllReplies","componentStatesForNodeId","getComponentStatesByComponentId","tempComponentState","componentContent","starterSentence","$inject"],"mappings":";;;;;;;;;;AAAA;;;;;;;;;;;;IAEMA,iB;;;AACJ,6BAAYC,OAAZ,EACIC,KADJ,EAEIC,UAFJ,EAGIC,EAHJ,EAIIC,SAJJ,EAKIC,aALJ,EAMIC,kBANJ,EAOIC,WAPJ,EAOiB;AAAA;;AAAA,sIACTP,OADS,EACAM,kBADA,EACoBC,WADpB;;AAEf,UAAKN,KAAL,GAAaA,KAAb;AACA,UAAKC,UAAL,GAAkBA,UAAlB;AACA,UAAKC,EAAL,GAAUA,EAAV;AACA,UAAKC,SAAL,GAAiBA,SAAjB;AACA,UAAKC,aAAL,GAAqBA,aAArB;AACA,QAAI,MAAKA,aAAL,IAAsB,IAAtB,IAA8B,MAAKA,aAAL,CAAmBG,OAAnB,MAAgC,kBAAlE,EAAsF;AACpF;AACA,YAAKC,kBAAL,GAA0B,MAAKL,SAAL,CAAeM,GAAf,CAAmB,oBAAnB,CAA1B;AACD;AAVc;AAWhB;;;;4CAEuB;AACtB,aAAO,KAAKC,UAAL,CAAgB,+BAAhB,CAAP;AACD;;;sCAEiB;AAChB,UAAMC,iJAAN;AACAA,gBAAUC,IAAV,GAAiB,YAAjB;AACAD,gBAAUE,MAAV,GAAmB,KAAKH,UAAL,CAAgB,mBAAhB,CAAnB;AACAC,gBAAUG,0BAAV,GAAuC,IAAvC;AACAH,gBAAUI,sBAAV,GAAmC,IAAnC;AACA,aAAOJ,SAAP;AACD;;;2CAEsBK,gC,EAAkCC,kB,EAAoB;AAC3E,UAAIC,iBAAiB,IAArB;;AAEA,UAAIF,oCAAoC,IAApC,IAA4CC,sBAAsB,IAAtE,EAA4E;AAC1EC,yBAAiBb,mBAAmBc,oBAAnB,EAAjB;;AAEA,YAAIF,uBAAuB,cAA3B,EAA2C;AACzCC,yBAAeE,WAAf,GAA6BJ,iCAAiCI,WAA9D;AACD;AACF;;AAED,aAAOF,cAAP;AACD;;;0CAEqBG,K,EAAOC,Q,EAAUC,M,EAAQC,W,EAAa;;AAE1D,UAAIH,SAAS,IAAT,IAAiBC,YAAY,IAA7B,IAAqCC,UAAU,IAA/C,IAAuDC,eAAe,IAA1E,EAAgF;AAC9E,eAAO,KAAKtB,EAAL,CAAQuB,QAAQC,IAAR,CAAa,IAAb,EAAmB,UAASC,OAAT,EAAkBC,MAAlB,EAA0B;;AAE1D,cAAIC,aAAa,EAAjB;AACAA,qBAAWC,MAAX,GAAoB,KAApB;AACAD,qBAAWE,GAAX,GAAiB,KAAK3B,aAAL,CAAmB4B,cAAnB,CAAkC,gBAAlC,CAAjB;;AAEA,cAAIC,SAAS,EAAb;AACAA,iBAAOZ,KAAP,GAAeA,KAAf;AACAY,iBAAOX,QAAP,GAAkBA,QAAlB;AACAW,iBAAOV,MAAP,GAAgBA,MAAhB;AACAU,iBAAOT,WAAP,GAAqBA,WAArB;AACAS,iBAAOC,cAAP,GAAwB,IAAxB;AACAD,iBAAOE,cAAP,GAAwB,IAAxB;AACAN,qBAAWI,MAAX,GAAoBA,MAApB;;AAEA,eAAKjC,KAAL,CAAW6B,UAAX,EAAuBO,IAAvB,CAA4BX,QAAQC,IAAR,CAAa,IAAb,EAAmB,UAASW,MAAT,EAAiB;AAC9D,gBAAIC,gBAAgBD,OAAOE,IAA3B;;AAEA;;AAEAZ,oBAAQW,aAAR;AACD,WAN2B,CAA5B;AAOD,SAtBc,CAAR,CAAP;AAuBD;AACF;;;gCAEW3B,S,EAAW6B,e,EAAiBC,e,EAAiBC,U,EAAY;AACnE,UAAIL,SAAS,KAAb;;AAEA,UAAIG,mBAAmB,IAAvB,EAA6B;;AAE3B;AACA,aAAK,IAAIG,IAAI,CAAb,EAAgBA,IAAIH,gBAAgBI,MAApC,EAA4CD,GAA5C,EAAiD;;AAE/C;AACA,cAAIzB,iBAAiBsB,gBAAgBG,CAAhB,CAArB;;AAEA;AACA,cAAIvB,cAAcF,eAAeE,WAAjC;;AAEA,cAAIA,eAAe,IAAnB,EAAyB;AACvB,gBAAIyB,WAAWzB,YAAYyB,QAA3B;;AAEA,gBAAIA,YAAY,IAAhB,EAAsB;AACpB;AACAR,uBAAS,IAAT;AACA;AACD;AACF;AACF;AACF;;AAED,aAAOA,MAAP;AACD;;;;;AAED;;;;;;;;;;sDAUkCb,W,EAAasB,W,EAAa;AAC1D,UAAIC,WAAW,EAAf;;AAEA,UAAIC,4BAA4B,EAAhC;;AAEA;AACA,UAAIR,kBAAkB,KAAKhC,kBAAL,CAAwByC,6CAAxB,CAAsEH,WAAtE,EAAmFtB,WAAnF,CAAtB;;AAEA,UAAIgB,mBAAmB,IAAvB,EAA6B;;AAE3B;AACA,aAAK,IAAIG,IAAI,CAAb,EAAgBA,IAAIH,gBAAgBI,MAApC,EAA4CD,GAA5C,EAAiD;;AAE/C,cAAIzB,iBAAiBsB,gBAAgBG,CAAhB,CAArB;;AAEA,cAAIzB,kBAAkB,IAAtB,EAA4B;AAC1B,gBAAIE,cAAcF,eAAeE,WAAjC;;AAEA,gBAAIA,eAAe,IAAnB,EAAyB;AACvB,kBAAIA,YAAY8B,0BAAZ,IAA0C,IAA9C,EAAoD;;AAElD;AACA,oBAAIF,0BAA0BG,OAA1B,CAAkCjC,eAAekC,EAAjD,KAAwD,CAAC,CAA7D,EAAgE;AAC9D;;AAEA;;;;AAIAL,6BAAWA,SAASM,MAAT,CAAgB,KAAKC,oBAAL,CAA0B9B,WAA1B,EAAuCN,eAAekC,EAAtD,CAAhB,CAAX;;AAEAJ,4CAA0BO,IAA1B,CAA+BrC,eAAekC,EAA9C;AACD;AACF,eAdD,MAcO;;AAEL;AACA,oBAAIJ,0BAA0BG,OAA1B,CAAkC/B,YAAY8B,0BAA9C,KAA6E,CAAC,CAAlF,EAAqF;AACnF;;AAEA;;;;AAIAH,6BAAWA,SAASM,MAAT,CAAgB,KAAKC,oBAAL,CAA0B9B,WAA1B,EAAuCJ,YAAY8B,0BAAnD,CAAhB,CAAX;;AAEAF,4CAA0BO,IAA1B,CAA+BnC,YAAY8B,0BAA3C;AACD;AACF;AACF;AACF;AACF;AACF;;AAED,aAAOH,QAAP;AACD;;AAED;;;;;;;;;yCAMqBvB,W,EAAagC,gB,EAAkB;AAClD,UAAIC,oBAAoB,EAAxB;;AAEA;AACA,UAAIC,2BAA2B,KAAKlD,kBAAL,CAAwBmD,+BAAxB,CAAwDnC,WAAxD,CAA/B;;AAEA,WAAK,IAAImB,IAAI,CAAb,EAAgBA,IAAIe,yBAAyBd,MAA7C,EAAqDD,GAArD,EAA0D;AACxD,YAAIiB,qBAAqBF,yBAAyBf,CAAzB,CAAzB;;AAEA,YAAIiB,sBAAsB,IAA1B,EAAgC;AAC9B,cAAIJ,qBAAqBI,mBAAmBR,EAA5C,EAAgD;AAC9C;AACAK,8BAAkBF,IAAlB,CAAuBK,kBAAvB;AACD,WAHD,MAGO;AACL;AACA,gBAAIxC,cAAcwC,mBAAmBxC,WAArC;;AAEA,gBAAIA,eAAe,IAAnB,EAAyB;AACvB,kBAAI8B,6BAA6B9B,YAAY8B,0BAA7C;;AAEA,kBAAIA,8BAA8B,IAAlC,EAAwC;AACtC,oBAAIM,qBAAqBN,0BAAzB,EAAqD;AACnD;AACAO,oCAAkBF,IAAlB,CAAuBK,kBAAvB;AACD;AACF;AACF;AACF;AACF;AACF;;AAED,aAAOH,iBAAP;AACD;;;8CAEyB;AACxB,aAAO,KAAP;AACD;;;gDAE2B;AAC1B,aAAO,KAAP;AACD;;;iDAE4BvC,c,EAAgB2C,gB,EAAkB;;AAE7D,UAAI3C,kBAAkB,IAAtB,EAA4B;;AAE1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ComponentService from '../componentService';\n\nclass DiscussionService extends ComponentService {\n  constructor($filter,\n      $http,\n      $rootScope,\n      $q,\n      $injector,\n      ConfigService,\n      StudentDataService,\n      UtilService) {\n    super($filter, StudentDataService, UtilService);\n    this.$http = $http;\n    this.$rootScope = $rootScope;\n    this.$q = $q;\n    this.$injector = $injector;\n    this.ConfigService = ConfigService;\n    if (this.ConfigService != null && this.ConfigService.getMode() == 'classroomMonitor') {\n      // in the classroom monitor, we need access to the TeacherDataService so it can retrieve posts and replies for all students\n      this.TeacherDataService = this.$injector.get('TeacherDataService');\n    }\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('discussion.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'Discussion';\n    component.prompt = this.$translate('ENTER_PROMPT_HERE');\n    component.isStudentAttachmentEnabled = true;\n    component.gateClassmateResponses = true;\n    return component;\n  }\n\n  populateComponentState(componentStateFromOtherComponent, otherComponentType) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null && otherComponentType != null) {\n      componentState = StudentDataService.createComponentState();\n\n      if (otherComponentType === 'OpenResponse') {\n        componentState.studentData = componentStateFromOtherComponent.studentData;\n      }\n    }\n\n    return componentState;\n  };\n\n  getClassmateResponses(runId, periodId, nodeId, componentId) {\n\n    if (runId != null && periodId != null && nodeId != null && componentId != null) {\n      return this.$q(angular.bind(this, function(resolve, reject) {\n\n        var httpParams = {};\n        httpParams.method = 'GET';\n        httpParams.url = this.ConfigService.getConfigParam('studentDataURL');\n\n        var params = {};\n        params.runId = runId;\n        params.periodId = periodId;\n        params.nodeId = nodeId;\n        params.componentId = componentId;\n        params.getStudentWork = true;\n        params.getAnnotations = true;\n        httpParams.params = params;\n\n        this.$http(httpParams).then(angular.bind(this, function(result) {\n          var classmateData = result.data;\n\n          //console.log(classmateData);\n\n          resolve(classmateData);\n        }));\n      }));\n    }\n  };\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents) {\n    var result = false;\n\n    if (componentStates != null) {\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n\n        // the component state\n        var componentState = componentStates[c];\n\n        // get the student data from the component state\n        var studentData = componentState.studentData;\n\n        if (studentData != null) {\n          var response = studentData.response;\n\n          if (response != null) {\n            // there is a response so the component is completed\n            result = true;\n            break;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Get all the posts associated with a workgroup id. This will\n   * get all the posts and replies that the workgroup posted\n   * or replied to as well as all the other replies classmates made.\n   * @param componentId the component id\n   * @param workgroupId the workgroup id\n   * @returns an array containing all the component states for\n   * top level posts and replies that are associated with the\n   * workgroup\n   */\n  getPostsAssociatedWithWorkgroupId(componentId, workgroupId) {\n    var allPosts = [];\n\n    var topLevelComponentIdsFound = [];\n\n    // get all the component states for the workgroup id\n    var componentStates = this.TeacherDataService.getComponentStatesByWorkgroupIdAndComponentId(workgroupId, componentId);\n\n    if (componentStates != null) {\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n\n        var componentState = componentStates[c];\n\n        if (componentState != null) {\n          var studentData = componentState.studentData;\n\n          if (studentData != null) {\n            if (studentData.componentStateIdReplyingTo == null) {\n\n              // check if we have already added the top level post\n              if (topLevelComponentIdsFound.indexOf(componentState.id) == -1) {\n                // we haven't found the top level post yet so\n\n                /*\n                 * the component state is a top level post so we will\n                 * get the post and all the replies to the post\n                 */\n                allPosts = allPosts.concat(this.getPostAndAllReplies(componentId, componentState.id));\n\n                topLevelComponentIdsFound.push(componentState.id);\n              }\n            } else {\n\n              // check if we have already added the top level post\n              if (topLevelComponentIdsFound.indexOf(studentData.componentStateIdReplyingTo) == -1) {\n                // we haven't found the top level post yet so\n\n                /*\n                 * the component state is a reply so we will get the\n                 * top level post and all the replies to it\n                 */\n                allPosts = allPosts.concat(this.getPostAndAllReplies(componentId, studentData.componentStateIdReplyingTo));\n\n                topLevelComponentIdsFound.push(studentData.componentStateIdReplyingTo);\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return allPosts;\n  }\n\n  /**\n   * Get the top level post and all the replies to it\n   * @param componentId the component id\n   * @param componentStateId the component state id\n   * @returns an array containing the top level post and all the replies\n   */\n  getPostAndAllReplies(componentId, componentStateId) {\n    var postAndAllReplies = [];\n\n    // get all the component states for the node\n    var componentStatesForNodeId = this.TeacherDataService.getComponentStatesByComponentId(componentId);\n\n    for (var c = 0; c < componentStatesForNodeId.length; c++) {\n      var tempComponentState = componentStatesForNodeId[c];\n\n      if (tempComponentState != null) {\n        if (componentStateId === tempComponentState.id) {\n          // we have found the top level post\n          postAndAllReplies.push(tempComponentState);\n        } else {\n          // check if the component state is a reply to the post we are looking for\n          var studentData = tempComponentState.studentData;\n\n          if (studentData != null) {\n            var componentStateIdReplyingTo = studentData.componentStateIdReplyingTo;\n\n            if (componentStateIdReplyingTo != null) {\n              if (componentStateId === componentStateIdReplyingTo) {\n                // this is a reply to the post we are looking for\n                postAndAllReplies.push(tempComponentState);\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return postAndAllReplies;\n  };\n\n  componentUsesSaveButton() {\n    return false;\n  }\n\n  componentUsesSubmitButton() {\n    return false;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the response from the student data\n        let response = studentData.response;\n\n        if (componentContent == null) {\n          // the component content was not provided\n\n          if (response != null && response !== '') {\n            // the student has work\n            return true;\n          }\n        } else {\n          // the component content was provided\n\n          let starterSentence = componentContent.starterSentence;\n\n          if (starterSentence == null || starterSentence === '') {\n            // there is no starter sentence\n\n            if (response != null && response !== '') {\n              // the student has work\n              return true;\n            }\n          } else {\n            /*\n             * there is a starter sentence so we will compare it\n             * with the student response\n             */\n\n            if (response != null && response !== '' && response !== starterSentence) {\n              /*\n               * the student has a response that is different than\n               * the starter sentence\n               */\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n}\n\nDiscussionService.$inject = [\n  '$filter',\n  '$http',\n  '$rootScope',\n  '$q',\n  '$injector',\n  'ConfigService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default DiscussionService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/discussion/index.html b/src/main/webapp/wise5/components/discussion/index.html
index aa1b3f60db..97cc469819 100644
--- a/src/main/webapp/wise5/components/discussion/index.html
+++ b/src/main/webapp/wise5/components/discussion/index.html
@@ -178,7 +178,8 @@ <h6>{{ 'advancedAuthoringOptions' | translate }}</h6>
           <md-input-container style='width: 100%;'>
             <textarea ng-model='discussionController.authoringComponentContentJSONString'
                 style='width: 90%; border: 1px solid black;'
-                ng-change='discussionController.authoringJSONChanged()'>
+                ng-change='discussionController.authoringJSONChanged()'
+                ng-model-options='{ debounce: 1000 }'>
             </textarea>
           </md-input-container>
         </div>
diff --git a/src/main/webapp/wise5/components/draw/drawController.es6 b/src/main/webapp/wise5/components/draw/drawController.es6
index 0af8496655..8db9bf3381 100644
--- a/src/main/webapp/wise5/components/draw/drawController.es6
+++ b/src/main/webapp/wise5/components/draw/drawController.es6
@@ -760,8 +760,18 @@ class DrawController {
       this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);
     }
 
-    // listen for the drawing changed event
-    this.drawingTool.on('drawing:changed', angular.bind(this, this.studentDataChanged));
+    /*
+     * Wait before we start listening for the drawing:changed event. We need to wait
+     * because the calls above to this.drawingTool.setBackgroundImage() will cause
+     * the drawing:changed event to be fired from the drawingTool, but when that happens,
+     * we don't want to call this.studentDataChanged() because it marks the student work
+     * as dirty. We only want to call this.studentDataChanged() when the drawing:changed
+     * event occurs in response to the student changing the drawing and this timeout
+     * will help make sure of that.
+     */
+    this.$timeout(angular.bind(this, () => {
+      this.drawingTool.on('drawing:changed', angular.bind(this, this.studentDataChanged));
+    }), 500);
 
     if (this.mode === 'student') {
       // listen for selected tool changed event
diff --git a/src/main/webapp/wise5/components/draw/drawController.js b/src/main/webapp/wise5/components/draw/drawController.js
index f5c0c86a3f..29a15af98e 100644
--- a/src/main/webapp/wise5/components/draw/drawController.js
+++ b/src/main/webapp/wise5/components/draw/drawController.js
@@ -607,6 +607,7 @@ var DrawController = function () {
   _createClass(DrawController, [{
     key: 'initializeDrawingTool',
     value: function initializeDrawingTool() {
+      var _this2 = this;
 
       this.drawingTool = new DrawingTool('#' + this.drawingToolId, {
         stamps: this.componentContent.stamps || {},
@@ -745,8 +746,18 @@ var DrawController = function () {
         this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);
       }
 
-      // listen for the drawing changed event
-      this.drawingTool.on('drawing:changed', angular.bind(this, this.studentDataChanged));
+      /*
+       * Wait before we start listening for the drawing:changed event. We need to wait
+       * because the calls above to this.drawingTool.setBackgroundImage() will cause
+       * the drawing:changed event to be fired from the drawingTool, but when that happens,
+       * we don't want to call this.studentDataChanged() because it marks the student work
+       * as dirty. We only want to call this.studentDataChanged() when the drawing:changed
+       * event occurs in response to the student changing the drawing and this timeout
+       * will help make sure of that.
+       */
+      this.$timeout(angular.bind(this, function () {
+        _this2.drawingTool.on('drawing:changed', angular.bind(_this2, _this2.studentDataChanged));
+      }), 500);
 
       if (this.mode === 'student') {
         // listen for selected tool changed event
@@ -1160,7 +1171,7 @@ var DrawController = function () {
      * Called when the student changes their work
      */
     value: function studentDataChanged() {
-      var _this2 = this;
+      var _this3 = this;
 
       /*
        * set the dirty flag so we will know we need to save the
@@ -1188,7 +1199,7 @@ var DrawController = function () {
 
       // create a component state populated with the student data
       this.createComponentState(action).then(function (componentState) {
-        _this2.$scope.$emit('componentStudentDataChanged', { nodeId: _this2.nodeId, componentId: componentId, componentState: componentState });
+        _this3.$scope.$emit('componentStudentDataChanged', { nodeId: _this3.nodeId, componentId: componentId, componentState: componentState });
       });
     }
   }, {
@@ -1343,7 +1354,7 @@ var DrawController = function () {
      * @param studentAsset
      */
     value: function attachStudentAsset(studentAsset) {
-      var _this3 = this;
+      var _this4 = this;
 
       if (studentAsset != null) {
         this.StudentAssetService.copyAssetForReference(studentAsset).then(function (copiedAsset) {
@@ -1355,7 +1366,7 @@ var DrawController = function () {
               //oImg.setTop((this.drawingTool.canvas.height / 2) - (oImg.height / 2));
               //oImg.center();
               oImg.studentAssetId = copiedAsset.id; // keep track of this asset id
-              _this3.drawingTool.canvas.add(oImg); // add copied asset image to canvas
+              _this4.drawingTool.canvas.add(oImg); // add copied asset image to canvas
             });
           }
         });
@@ -1412,7 +1423,7 @@ var DrawController = function () {
      * student already has work for this component
      */
     value: function importWork(overwrite) {
-      var _this4 = this;
+      var _this5 = this;
 
       // get the component content
       var componentContent = this.componentContent;
@@ -1483,10 +1494,10 @@ var DrawController = function () {
                     service.createImage(conceptMapData, componentContent.width, componentContent.height).then(function (image) {
 
                       // set the image as the background
-                      _this4.drawingTool.setBackgroundImage(image);
+                      _this5.drawingTool.setBackgroundImage(image);
 
                       // make the work dirty so that it gets saved
-                      _this4.studentDataChanged();
+                      _this5.studentDataChanged();
                     });
                   }
                 }
@@ -1778,13 +1789,13 @@ var DrawController = function () {
   }, {
     key: 'snipButtonClicked',
     value: function snipButtonClicked($event) {
-      var _this5 = this;
+      var _this6 = this;
 
       if (this.isDirty) {
         var deregisterListener = this.$scope.$on('studentWorkSavedToServer', function (event, args) {
           var componentState = args.studentWork;
-          if (componentState && _this5.nodeId === componentState.nodeId && _this5.componentId === componentState.componentId) {
-            _this5.snipDrawing($event, componentState.id);
+          if (componentState && _this6.nodeId === componentState.nodeId && _this6.componentId === componentState.componentId) {
+            _this6.snipDrawing($event, componentState.id);
             deregisterListener();
           }
         });
@@ -2611,10 +2622,10 @@ var DrawController = function () {
   }, {
     key: 'setComponentStateAsBackgroundImage',
     value: function setComponentStateAsBackgroundImage(componentState) {
-      var _this6 = this;
+      var _this7 = this;
 
       this.UtilService.generateImageFromComponentState(componentState).then(function (image) {
-        _this6.drawingTool.setBackgroundImage(image.url);
+        _this7.drawingTool.setBackgroundImage(image.url);
       });
     }
 
@@ -2918,13 +2929,13 @@ var DrawController = function () {
   }, {
     key: 'importWorkByStudentWorkId',
     value: function importWorkByStudentWorkId(studentWorkId) {
-      var _this7 = this;
+      var _this8 = this;
 
       this.StudentDataService.getStudentWorkById(studentWorkId).then(function (componentState) {
         if (componentState != null) {
-          _this7.setStudentWork(componentState);
-          _this7.setParentStudentWorkIdToCurrentStudentWork(studentWorkId);
-          _this7.$rootScope.$broadcast('closeNotebook');
+          _this8.setStudentWork(componentState);
+          _this8.setParentStudentWorkIdToCurrentStudentWork(studentWorkId);
+          _this8.$rootScope.$broadcast('closeNotebook');
         }
       });
     }
diff --git a/src/main/webapp/wise5/components/draw/drawController.js.map b/src/main/webapp/wise5/components/draw/drawController.js.map
index 389e520175..5faf9b58f1 100644
--- a/src/main/webapp/wise5/components/draw/drawController.js.map
+++ b/src/main/webapp/wise5/components/draw/drawController.js.map
@@ -1 +1 @@
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drawingTool from 'lib/drawingTool/drawing-tool';\nimport drawingToolVendor from 'lib/drawingTool/vendor.min';\nimport html2canvas from 'html2canvas';\n\nclass DrawController {\n  constructor($filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      $timeout,\n      AnnotationService,\n      ConfigService,\n      DrawService,\n      NodeService,\n      NotebookService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$timeout = $timeout;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.DrawService = DrawService;\n    this.NodeService = NodeService;\n    this.NotebookService = NotebookService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n\n    this.idToOrder = this.ProjectService.idToOrder;\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether the student work has changed since last submit\n    this.isSubmitDirty = false;\n\n    // whether the save button is shown or not\n    this.isSaveButtonVisible = false;\n\n    // whether the submit button is shown or not\n    this.isSubmitButtonVisible = false;\n\n    // counter to keep track of the number of submits\n    this.submitCounter = 0;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // whether the reset button is visible or not\n    this.isResetButtonVisible = false;\n\n    // whether the snip drawing button is shown or not\n    this.isSnipDrawingButtonVisible = true;\n\n    // the label for the notebook in thos project\n    this.notebookConfig = this.NotebookService.getNotebookConfig();\n\n    // message to show next to save/submit buttons\n    this.saveMessage = {\n      text: '',\n      time: ''\n    };\n\n    // whether this part is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // will hold the drawing tool object\n    this.drawingTool = null;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    this.latestConnectedComponentState = null;\n    this.latestConnectedComponentParams = null;\n\n    // the default width and height of the canvas\n    this.width = 800;\n    this.height = 600;\n\n    if (this.componentContent.width != null) {\n      this.width = this.componentContent.width;\n    }\n\n    if (this.componentContent.height != null) {\n      this.height = this.componentContent.height;\n    }\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      { type: 'ConceptMap' },\n      { type: 'Draw' },\n      { type: 'Embedded' },\n      { type: 'Graph' },\n      { type: 'Label' },\n      { type: 'Table' }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n\n      // get the component type\n      this.componentType = this.componentContent.type;\n\n      if (this.mode === 'student') {\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.isResetButtonVisible = true;\n\n        this.drawingToolId = 'drawingtool_' + this.nodeId + '_' + this.componentId;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n      } else if (this.mode === 'grading' || this.mode === 'gradingRevision' || this.mode === 'onlyShowWork') {\n        this.isSnipDrawingButtonVisible = false;\n\n        // get the component state from the scope\n        let componentState = this.$scope.componentState;\n\n        if (componentState != null) {\n          // create a unique id for the application drawing tool element using this component state\n          this.drawingToolId = 'drawingtool_' + componentState.id;\n          if (this.mode === 'gradingRevision') {\n            this.drawingToolId = 'drawingtool_gradingRevision_' + componentState.id;\n          }\n        }\n\n        if (this.mode === 'grading') {\n          // get the latest annotations\n          this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n        }\n      } else if (this.mode === 'showPreviousWork') {\n        // get the component state from the scope\n        var componentState = this.$scope.componentState;\n        if (componentState != null) {\n          this.drawingToolId = 'drawingtool_' + componentState.id;\n        }\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isSnipDrawingButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'authoring') {\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.isResetButtonVisible = true;\n\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.drawingToolId = 'drawingtool_' + this.nodeId + '_' + this.componentId;\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n          this.submitCounter = 0;\n          this.initializeDrawingTool();\n          this.isSaveButtonVisible = this.componentContent.showSaveButton;\n          this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        }.bind(this), true);\n      }\n\n      // running this in side a timeout ensures that the code only runs after the markup is rendered.\n      // maybe there's a better way to do this, like with an event?\n      this.$timeout(angular.bind(this, this.initializeDrawingTool));\n    }\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @param isSubmit boolean whether the request is coming from a submit\n     * action (optional; default is false)\n     * @return a component state containing the student data\n     */\n    this.$scope.getComponentState = function(isSubmit) {\n      let deferred = this.$q.defer();\n      let getState = false;\n      let action = 'change';\n\n      if (isSubmit) {\n        if (this.$scope.drawController.isSubmitDirty) {\n          getState = true;\n          action = 'submit';\n        }\n      } else {\n        if (this.$scope.drawController.isDirty) {\n          getState = true;\n          action = 'save';\n        }\n      }\n\n      if (getState) {\n        // create a component state populated with the student data\n        this.$scope.drawController.createComponentState(action).then((componentState) => {\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', angular.bind(this, function(event, args) {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n\n        // trigger the submit\n        var submitTriggeredBy = 'nodeSubmitButton';\n        this.submit(submitTriggeredBy);\n      }\n    }));\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', angular.bind(this, function(event, args) {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // set isDirty to false because the component state was just saved and notify node\n        this.isDirty = false;\n        this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: false});\n\n        let isAutoSave = componentState.isAutoSave;\n        let isSubmit = componentState.isSubmit;\n        let serverSaveTime = componentState.serverSaveTime;\n        let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n\n        // set save message\n        if (isSubmit) {\n          this.setSaveMessage(this.$translate('SUBMITTED'), clientSaveTime);\n\n          this.lockIfNecessary();\n\n          // set isSubmitDirty to false because the component state was just submitted and notify node\n          this.isSubmitDirty = false;\n          this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        } else if (isAutoSave) {\n          this.setSaveMessage(this.$translate('AUTO_SAVED'), clientSaveTime);\n        } else {\n          this.setSaveMessage(this.$translate('SAVED'), clientSaveTime);\n        }\n      }\n\n      // check if the component state is from a connected component\n      if (this.ProjectService.isConnectedComponent(this.nodeId, this.componentId, componentState.componentId)) {\n\n        // get the connected component params\n        var connectedComponentParams = this.ProjectService.getConnectedComponentParams(this.componentContent, componentState.componentId);\n\n        if (connectedComponentParams != null) {\n\n          if (connectedComponentParams.updateOn === 'save' ||\n            (connectedComponentParams.updateOn === 'submit' && componentState.isSubmit)) {\n\n            var performUpdate = false;\n\n            /*\n             * make a copy of the component state so we don't accidentally\n             * change any values in the referenced object\n             */\n            componentState = this.UtilService.makeCopyOfJSONObject(componentState);\n\n            /*\n             * check if the the canvas is empty which means the student has\n             * not drawn anything yet\n             */\n            if (this.isCanvasEmpty()) {\n              performUpdate = true;\n            } else {\n              /*\n               * the student has drawn on the canvas so we\n               * will ask them if they want to update it\n               */\n              var answer = confirm(this.$translate('draw.doYouWantToUpdateTheConnectedDrawing'));\n\n              if (answer) {\n                // the student answered yes\n                performUpdate = true;\n              }\n            }\n\n            if (performUpdate) {\n\n              if (!connectedComponentParams.includeBackground) {\n                // remove the background from the draw data\n                this.DrawService.removeBackgroundFromComponentState(componentState);\n              }\n\n              // update the draw data\n              this.setDrawData(componentState);\n\n              // the table has changed\n              this.$scope.drawController.isDirty = true;\n              this.$scope.drawController.isSubmitDirty = true;\n            }\n\n            /*\n             * remember the component state and connected component params\n             * in case we need to use them again later\n             */\n            this.latestConnectedComponentState = componentState;\n            this.latestConnectedComponentParams = connectedComponentParams;\n          }\n        }\n      }\n    }));\n\n    /*\n     * Listen for the requestImage event which is fired when something needs\n     * an image representation of the student data from a specific\n     * component.\n     */\n    this.$scope.$on('requestImage', (event, args) => {\n      // get the node id and component id from the args\n      var nodeId = args.nodeId;\n      var componentId = args.componentId;\n\n      // check if the image is being requested from this component\n      if (this.nodeId === nodeId && this.componentId === componentId) {\n\n        // obtain the image blob\n        var imageObject = this.getImageObject();\n\n        if (imageObject != null) {\n          var args = {};\n          args.nodeId = nodeId;\n          args.componentId = componentId;\n          args.imageObject = imageObject;\n\n          // fire an event that contains the image object\n          this.$scope.$emit('requestImageCallback', args);\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', angular.bind(this, function(event, args) {\n\n    }));\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'background') {\n                // the target is the background image\n\n                // set the background file name\n                this.authoringComponentContent.background = fileName;\n\n                /*\n                 * the authoring view background has changed so we will\n                 * perform any changes if needed and then save the project\n                 */\n                this.authoringViewBackgroundChanged();\n              } else if (args.target == 'stamp') {\n                // the target is a stamp\n\n                // get the index of the stamp\n                var stampIndex = args.targetObject;\n\n                // get the file name\n                var fileName = assetItem.fileName;\n\n                // set the stamp image\n                this.setStampImage(stampIndex, fileName);\n\n                /*\n                 * the authoring view background has changed so we will\n                 * perform any changes if needed and then save the project\n                 */\n                this.authoringViewBackgroundChanged();\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n\n    this.$scope.$on('notebookItemChosen', (event, args) => {\n      if (args.requester == this.nodeId + '-' + this.componentId) {\n        const notebookItem = args.notebookItem;\n        const studentWorkId = notebookItem.content.studentWorkIds[0];\n        this.importWorkByStudentWorkId(studentWorkId);\n      }\n    });\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }  // end of constructor\n\n  /**\n   * Initialize the drawing tool\n   */\n  initializeDrawingTool() {\n\n    this.drawingTool = new DrawingTool('#' + this.drawingToolId, {\n      stamps: this.componentContent.stamps || {},\n      parseSVG: true,\n      width: this.width,\n      height: this.height\n    });\n    var state = null;\n    $('#set-background').on('click', angular.bind(this, function () {\n      this.drawingTool.setBackgroundImage($('#background-src').val());\n    }));\n    $('#resize-background').on('click', angular.bind(this, function () {\n      this.drawingTool.resizeBackgroundToCanvas();\n    }));\n    $('#resize-canvas').on('click', angular.bind(this, function () {\n      this.drawingTool.resizeCanvasToBackground();\n    }));\n    $('#shrink-background').on('click', angular.bind(this, function () {\n      this.drawingTool.shrinkBackgroundToCanvas();\n    }));\n    $('#clear').on('click', angular.bind(this, function () {\n      this.drawingTool.clear(true);\n    }));\n    $('#save').on('click', angular.bind(this, function () {\n      state = drawingTool.save();\n      $('#load').removeAttr('disabled');\n    }));\n    $('#load').on('click', angular.bind(this, function () {\n      if (state === null) return;\n      this.drawingTool.load(state);\n    }));\n\n    var componentState = null;\n\n    // get the component state from the scope\n    componentState = this.$scope.componentState;\n\n    // set whether studentAttachment is enabled\n    this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n    if (this.mode == 'student') {\n      if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {\n        // we will show work from another component\n        this.handleConnectedComponents();\n      }  else if (this.DrawService.componentStateHasStudentWork(componentState, this.componentContent)) {\n        /*\n         * the student has work so we will populate the work into this\n         * component\n         */\n        this.setStudentWork(componentState);\n      } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (componentState == null ||\n             !this.DrawService.componentStateHasStudentWork(componentState, this.componentContent)) {\n        /*\n         * only import work or use starter draw data if the student\n         * does not already have work for this component\n         */\n\n        // check if we need to import work\n        var importPreviousWorkNodeId = this.componentContent.importPreviousWorkNodeId;\n        var importPreviousWorkComponentId = this.componentContent.importPreviousWorkComponentId;\n\n        // get the starter draw data if any\n        var starterDrawData = this.componentContent.starterDrawData;\n\n        if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n          /*\n           * check if the node id is in the field that we used to store\n           * the import previous work node id in\n           */\n          importPreviousWorkNodeId = this.componentContent.importWorkNodeId;\n        }\n\n        if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n          /*\n           * check if the component id is in the field that we used to store\n           * the import previous work component id in\n           */\n          importPreviousWorkComponentId = this.componentContent.importWorkComponentId;\n        }\n\n        if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n          if (this.componentContent.background != null) {\n            // set the background from the component content\n            this.drawingTool.setBackgroundImage(this.componentContent.background);\n          }\n\n          // import the work from the other component\n          this.importWork();\n        } else if (starterDrawData != null) {\n          // there is starter draw data so we will populate it into the draw tool\n          this.drawingTool.load(starterDrawData);\n\n          if (this.componentContent.background != null) {\n            // set the background from the component content\n            this.drawingTool.setBackgroundImage(this.componentContent.background);\n          }\n        } else {\n          if (this.componentContent.background != null) {\n            // set the background from the component content\n            this.drawingTool.setBackgroundImage(this.componentContent.background);\n          }\n        }\n      }\n    } else if (this.mode == 'authoring') {\n\n      if (this.componentContent.starterDrawData != null) {\n        // there is starter draw data so we will populate it into the draw tool\n        this.drawingTool.load(this.componentContent.starterDrawData);\n      }\n\n      if (this.componentContent.background != null) {\n        this.drawingTool.setBackgroundImage(this.componentContent.background);\n      }\n    } else {\n      // populate the student work into this component\n      this.setStudentWork(componentState);\n    }\n\n    // check if the student has used up all of their submits\n    if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n      /*\n       * the student has used up all of their chances to submit so we\n       * will disable the submit button\n       */\n      this.isSubmitButtonDisabled = true;\n    }\n\n    // check if we need to lock this component\n    this.calculateDisabled();\n\n    // register this component with the parent node\n    if (this.$scope.$parent && this.$scope.$parent.nodeController != null) {\n      this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n    }\n\n    // listen for the drawing changed event\n    this.drawingTool.on('drawing:changed', angular.bind(this, this.studentDataChanged));\n\n    if (this.mode === 'student') {\n      // listen for selected tool changed event\n      this.drawingTool.on('tool:changed', function (toolName) {\n        // log this event\n        var category = 'Tool';\n        var event = 'toolSelected';\n        var data = {};\n        data.selectedToolName = toolName;\n        this.StudentDataService.saveComponentEvent(this, category, event, data);\n      }.bind(this));\n    }\n\n    if (this.mode === 'grading' || this.mode === 'gradingRevision' || this.mode === 'onlyShowWork') {\n      // we're in show student work mode, so hide the toolbar and make the drawing non-editable\n      $('#' + this.drawingToolId).find('.dt-tools').hide();\n    } else {\n      // show or hide the draw tools\n      this.setupTools();\n    }\n  }\n\n  /**\n   * Setup the tools that we will make available to the student\n   */\n  setupTools() {\n\n    // get the tools values from the authored content\n    var tools = this.componentContent.tools;\n\n    if (tools == null) {\n      // we will display all the tools\n    } else {\n      // we will only display the tools the authored specified to show\n\n      // the title for the select button\n      var selectTitle = this.$translate('draw.selectToolTooltip');\n      let $drawingTool = $('#' + this.drawingToolId);\n\n      if (tools.select) {\n        $drawingTool.find('[title=\"' + selectTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + selectTitle + '\"]').hide();\n      }\n\n      // the title for the line button\n      var lineTitle = this.$translate('draw.lineToolTooltip');\n\n      if (tools.line) {\n        $drawingTool.find('[title=\"' + lineTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + lineTitle + '\"]').hide();\n      }\n\n      // the title for the shape button\n      var shapeTitle = this.$translate('draw.shapeToolTooltip');\n\n      if (tools.shape) {\n        $drawingTool.find('[title=\"' + shapeTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + shapeTitle + '\"]').hide();\n      }\n\n      // the title for the free hand button\n      var freeHandTitle = this.$translate('draw.freeHandToolTooltip');\n\n      if (tools.freeHand) {\n        $drawingTool.find('[title=\"' + freeHandTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + freeHandTitle + '\"]').hide();\n      }\n\n      // the title for the text button\n      var textTitle = this.$translate('draw.textToolTooltip');\n\n      if (tools.text) {\n        $drawingTool.find('[title=\"' + textTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + textTitle + '\"]').hide();\n      }\n\n      // the title for the stamp button\n      var stampTitle = this.$translate('draw.stampToolTooltip');\n\n      if (tools.stamp) {\n        $drawingTool.find('[title=\"' + stampTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + stampTitle + '\"]').hide();\n      }\n\n      // the title for the clone button\n      var cloneTitle = this.$translate('draw.cloneToolTooltip');\n\n      if (tools.clone) {\n        $drawingTool.find('[title=\"' + cloneTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + cloneTitle + '\"]').hide();\n      }\n\n      // the title for the stroke color button\n      var strokeColorTitle = this.$translate('draw.strokeColorToolTooltip');\n\n      if (tools.strokeColor) {\n        $drawingTool.find('[title=\"' + strokeColorTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + strokeColorTitle + '\"]').hide();\n      }\n\n      // the title for the fill color button\n      var fillColorTitle = this.$translate('draw.fillColorToolTooltip');\n\n      if (tools.fillColor) {\n        $drawingTool.find('[title=\"' + fillColorTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + fillColorTitle + '\"]').hide();\n      }\n\n      // the title for the stroke width button\n      var strokeWidthTitle = this.$translate('draw.strokeWidthToolTooltip');\n\n      if (tools.strokeWidth) {\n        $drawingTool.find('[title=\"' + strokeWidthTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + strokeWidthTitle + '\"]').hide();\n      }\n\n      // the title for the send back button\n      var sendBackTitle = this.$translate('draw.sendBackToolTooltip');\n\n      if (tools.sendBack) {\n        $drawingTool.find('[title=\"' + sendBackTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + sendBackTitle + '\"]').hide();\n      }\n\n      // the title for the send forward button\n      var sendForwardTitle = this.$translate('draw.sendForwardToolTooltip');\n\n      if (tools.sendForward) {\n        $drawingTool.find('[title=\"' + sendForwardTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + sendForwardTitle + '\"]').hide();\n      }\n\n      // the title for the undo button\n      var undoTitle = this.$translate('draw.undo');\n\n      if (tools.undo) {\n        $drawingTool.find('[title=\"' + undoTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + undoTitle + '\"]').hide();\n      }\n\n      // the title for the redo button\n      var redoTitle = this.$translate('draw.redo');\n\n      if (tools.redo) {\n        $drawingTool.find('[title=\"' + redoTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + redoTitle + '\"]').hide();\n      }\n\n      // the title for the delete button\n      var deleteTitle = this.$translate('draw.deleteToolTooltip');\n\n      if (tools.delete) {\n        $drawingTool.find('[title=\"' + deleteTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + deleteTitle + '\"]').hide();\n      }\n\n      if (this.isDisabled) {\n        $drawingTool.find('.dt-tools').hide();\n      }\n    }\n  }\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n\n      // set the draw data\n      this.setDrawData(componentState);\n\n      /*\n       * check if the latest component state is a submit and perform\n       * any necessary processing\n       */\n       this.processLatestSubmit();\n    }\n  };\n\n  /**\n   * Check if latest component state is a submission and set isSubmitDirty accordingly\n   */\n  processLatestSubmit() {\n    let latestState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n    if (latestState) {\n      let serverSaveTime = latestState.serverSaveTime;\n      let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n      if (latestState.isSubmit) {\n        // latest state is a submission, so set isSubmitDirty to false and notify node\n        this.isSubmitDirty = false;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SUBMITTED'), clientSaveTime);\n      } else {\n        // latest state is not a submission, so set isSubmitDirty to true and notify node\n        this.isSubmitDirty = true;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SAVED'), clientSaveTime);\n      }\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n    this.isSubmit = false;\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    // trigger the submit\n    var submitTriggeredBy = 'componentSubmitButton';\n    this.submit(submitTriggeredBy);\n  };\n\n\n  /**\n   * A submit was triggered by the component submit button or node submit button\n   * @param submitTriggeredBy what triggered the submit\n   * e.g. 'componentSubmitButton' or 'nodeSubmitButton'\n   */\n  submit(submitTriggeredBy) {\n\n    if (this.isSubmitDirty) {\n      // the student has unsubmitted work\n\n      var performSubmit = true;\n\n      if (this.componentContent.maxSubmitCount != null) {\n        // there is a max submit count\n\n        // calculate the number of submits this student has left\n        var numberOfSubmitsLeft = this.componentContent.maxSubmitCount - this.submitCounter;\n\n        var message = '';\n\n        if (numberOfSubmitsLeft <= 0) {\n          // the student does not have any more chances to submit\n          performSubmit = false;\n        } else if (numberOfSubmitsLeft == 1) {\n          /*\n           * the student has one more chance to submit left so maybe\n           * we should ask the student if they are sure they want to submit\n           */\n        } else if (numberOfSubmitsLeft > 1) {\n          /*\n           * the student has more than one chance to submit left so maybe\n           * we should ask the student if they are sure they want to submit\n           */\n        }\n      }\n\n      if (performSubmit) {\n\n        /*\n         * set isSubmit to true so that when the component state is\n         * created, it will know that is a submit component state\n         * instead of just a save component state\n         */\n        this.isSubmit = true;\n\n        // increment the submit counter\n        this.incrementSubmitCounter();\n\n        // check if the student has used up all of their submits\n        if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n          /*\n           * the student has used up all of their submits so we will\n           * disable the submit button\n           */\n          this.isSubmitButtonDisabled = true;\n        }\n\n        if (this.mode === 'authoring') {\n          /*\n           * we are in authoring mode so we will set values appropriately\n           * here because the 'componentSubmitTriggered' event won't\n           * work in authoring mode\n           */\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.createComponentState('submit');\n        }\n\n        if (submitTriggeredBy == null || submitTriggeredBy === 'componentSubmitButton') {\n          // tell the parent node that this component wants to submit\n          this.$scope.$emit('componentSubmitTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n        } else if (submitTriggeredBy === 'nodeSubmitButton') {\n          // nothing extra needs to be performed\n        }\n      } else {\n        /*\n         * the student has cancelled the submit so if a component state\n         * is created, it will just be a regular save and not submit\n         */\n        this.isSubmit = false;\n      }\n    }\n  }\n\n  /**\n   * Increment the submit counter\n   */\n  incrementSubmitCounter() {\n    this.submitCounter++;\n  }\n\n  /**\n   * The reset button was clicked\n   */\n  resetButtonClicked() {\n\n    // ask the student if they are sure they want to clear the drawing\n    var result = confirm(this.$translate('draw.areYouSureYouWantToClearYourDrawing'));\n\n    if (result) {\n      // clear the drawing\n      this.drawingTool.clear();\n\n      if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (this.latestConnectedComponentState && this.latestConnectedComponentParams) {\n        // reload the student data from the connected component\n        this.setDrawData(latestConnectedComponentState, latestConnectedComponentParams);\n      } else if (this.componentContent.importPreviousWorkNodeId != null &&\n             this.componentContent.importPreviousWorkNodeId != '' &&\n             this.componentContent.importPreviousWorkComponentId != null &&\n             this.componentContent.importPreviousWorkComponentId != '') {\n\n        // this component imports work from another component\n\n        // boolean flag to overwrite the work when we import\n        var overwrite = true;\n\n        // import work from another component\n        this.importWork(overwrite);\n      } else if (this.componentContent.starterDrawData != null) {\n        // this component has starter draw data\n\n        // there is starter draw data so we will populate it into the draw tool\n        this.drawingTool.load(this.componentContent.starterDrawData);\n      }\n\n      if (this.componentContent.background != null && this.componentContent.background != '') {\n        // set the background\n        this.drawingTool.setBackgroundImage(this.componentContent.background);\n      }\n\n      this.parentStudentWorkIds = null;\n    }\n  }\n\n  lockIfNecessary() {\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flag so we will know we need to save the\n     * student work later\n     */\n    this.isDirty = true;\n    this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: true});\n\n    this.isSubmitDirty = true;\n    this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n\n    // clear out the save message\n    this.setSaveMessage('', null);\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    var deferred = this.$q.defer();\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    var studentData = {};\n\n    // get the draw JSON string\n    var studentDataJSONString = this.getDrawData();\n\n    // set the draw JSON string into the draw data\n    studentData.drawData = studentDataJSONString;\n\n    // set the submit counter\n    studentData.submitCounter = this.submitCounter;\n\n    if (this.parentStudentWorkIds != null) {\n      studentData.parentStudentWorkIds = this.parentStudentWorkIds;\n    }\n\n    // set the flag for whether the student submitted this work\n    componentState.isSubmit = this.isSubmit;\n\n    // set the student data into the component state\n    componentState.studentData = studentData;\n\n    // set the component type\n    componentState.componentType = 'Draw';\n\n    // set the node id\n    componentState.nodeId = this.nodeId;\n\n    // set the component id\n    componentState.componentId = this.componentId;\n\n    /*\n     * reset the isSubmit value so that the next component state\n     * doesn't maintain the same value\n     */\n    this.isSubmit = false;\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n    /*\n     * we don't need to perform any additional processing so we can resolve\n     * the promise immediately\n     */\n    deferred.resolve(componentState);\n  }\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    var nodeId = this.nodeId;\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the step after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n    }\n\n    if (this.mode === 'showStudentWorkOnly') {\n      // distable saving if we're in showStudentWorkOnly mode\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Add student asset images as objects in the drawing canvas\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          fabric.Image.fromURL(copiedAsset.url, (oImg) => {\n            oImg.scaleToWidth(200);  // set max width and have height scale proportionally\n            // TODO: center image or put them at mouse position? Wasn't straight-forward, tried below but had issues...\n            //oImg.setLeft((this.drawingTool.canvas.width / 2) - (oImg.width / 2));  // center image vertically and horizontally\n            //oImg.setTop((this.drawingTool.canvas.height / 2) - (oImg.height / 2));\n            //oImg.center();\n            oImg.studentAssetId = copiedAsset.id;  // keep track of this asset id\n            this.drawingTool.canvas.add(oImg);   // add copied asset image to canvas\n          });\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the draw data\n   * @return the draw data from the drawing tool as a JSON string\n   */\n  getDrawData() {\n    var drawData = null;\n\n    drawData = this.drawingTool.save();\n\n    return drawData;\n  };\n\n  /**\n   * Import work from another component\n   * @param overwrite boolean value whether to import the work even if the\n   * student already has work for this component\n   */\n  importWork(overwrite) {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // get the import previous work node id and component id\n      var importPreviousWorkNodeId = componentContent.importPreviousWorkNodeId;\n      var importPreviousWorkComponentId = componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        if (componentContent.importWorkNodeId != null && componentContent.importWorkNodeId != '') {\n          importPreviousWorkNodeId = componentContent.importWorkNodeId;\n        }\n      }\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        if (componentContent.importWorkComponentId != null && componentContent.importWorkComponentId != '') {\n          importPreviousWorkComponentId = componentContent.importWorkComponentId;\n        }\n      }\n\n      if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null || overwrite == true) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importPreviousWorkNodeId, importPreviousWorkComponentId);\n\n          if (importWorkComponentState != null) {\n\n            if (importWorkComponentState.componentType == 'ConceptMap') {\n\n              var conceptMapData = null;\n\n              if (importWorkComponentState.studentData != null) {\n                // get the concept map data from the other component state\n                conceptMapData = importWorkComponentState.studentData.conceptMapData;\n              }\n\n              if (conceptMapData != null) {\n                var serviceName = 'ConceptMapService';\n\n                if (this.$injector.has(serviceName)) {\n\n                  // get the ConceptMapService\n                  var service = this.$injector.get(serviceName);\n\n                  // create an image from the concept map data\n                  service.createImage(conceptMapData, componentContent.width, componentContent.height).then((image) => {\n\n                    // set the image as the background\n                    this.drawingTool.setBackgroundImage(image);\n\n                    // make the work dirty so that it gets saved\n                    this.studentDataChanged();\n                  });\n                }\n              }\n            } else {\n              /*\n               * populate a new component state with the work from the\n               * imported component state\n               */\n              var populatedComponentState = this.DrawService.populateComponentState(importWorkComponentState);\n\n              // populate the component state into this component\n              this.setStudentWork(populatedComponentState);\n\n              if (this.componentContent.background != null && this.componentContent.background != '') {\n                // set the background\n                this.drawingTool.setBackgroundImage(this.componentContent.background);\n\n                // make the work dirty so that it gets saved\n                this.studentDataChanged();\n              }\n            }\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Get all the step node ids in the project\n   * @returns all the step node ids\n   */\n  getStepNodeIds() {\n    var stepNodeIds = this.ProjectService.getNodeIds();\n\n    return stepNodeIds;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Get the image object representation of the student data\n   * @returns an image object\n   */\n  getImageObject() {\n    var pngFile = null;\n\n    if (this.drawingTool != null && this.drawingTool.canvas != null) {\n\n      // get the image as a base64 string\n      var img_b64 = this.drawingTool.canvas.toDataURL('image/png');\n\n      // get the image object\n      pngFile = this.UtilService.getImageObjectFromBase64String(img_b64);\n    }\n\n    return pngFile;\n  }\n\n  /**\n   * Set the draw data\n   * @param componentState the component state\n   */\n  setDrawData(componentState) {\n    if (componentState != null) {\n\n      // get the student data from the component state\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        var submitCounter = studentData.submitCounter;\n\n        if (submitCounter != null) {\n          // populate the submit counter\n          this.submitCounter = submitCounter;\n        }\n\n        // get the draw data\n        var drawData = studentData.drawData;\n\n        if (drawData != null && drawData != '' && drawData != '{}') {\n          // set the draw data into the drawing tool\n          this.drawingTool.load(drawData);\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if the student has drawn anything\n   * @returns whether the canvas is empty\n   */\n  isCanvasEmpty() {\n\n    var result = true;\n\n    if (this.drawingTool != null && this.drawingTool.canvas != null) {\n\n      // get the objects in the canvas where the student draws\n      var objects = this.drawingTool.canvas.getObjects();\n\n      if (objects != null && objects.length > 0) {\n        // there are objects in the canvas\n        result = false;\n      }\n    }\n\n    return result;\n  }\n\n  /**\n   * Set the message next to the save button\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setSaveMessage(message, time) {\n    this.saveMessage.text = message;\n    this.saveMessage.time = time;\n  };\n\n\n  /**\n   * Check whether we need to show the snip drawing button\n   * @return whether to show the snip drawing button\n   */\n  showSnipDrawingButton() {\n    if (this.NotebookService.isNotebookEnabled() && this.isSnipDrawingButtonVisible) {\n      return true;\n    } else {\n      return false;\n    }\n  }\n\n  /**\n   * Snip the drawing by converting it to an image\n   * @param $event the click event\n   */\n  snipDrawing($event, studentWorkId) {\n    // get the canvas element\n    var canvas = angular.element('#drawingtool_' + this.nodeId + '_' + this.componentId + ' canvas');\n\n    if (canvas != null && canvas.length > 0) {\n\n      // get the top canvas\n      canvas = canvas[0];\n\n      // get the canvas as a base64 string\n      var img_b64 = canvas.toDataURL('image/png');\n\n      // get the image object\n      var imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n      // create a notebook item with the image populated into it\n      const noteText = null;\n      this.NotebookService.addNote($event, imageObject, noteText, [ studentWorkId ]);\n    }\n  }\n\n  snipButtonClicked($event) {\n    if (this.isDirty) {\n      const deregisterListener = this.$scope.$on('studentWorkSavedToServer',\n        (event, args) => {\n          let componentState = args.studentWork;\n          if (componentState &&\n            this.nodeId === componentState.nodeId &&\n            this.componentId === componentState.componentId) {\n            this.snipDrawing($event, componentState.id);\n            deregisterListener();\n          }\n        }\n      );\n      this.saveButtonClicked(); // trigger a save\n    } else {\n      const studentWork =\n          this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId)\n      this.snipDrawing($event, studentWork.id);\n    }\n  }\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    this.exitListener = this.$scope.$on('exit', angular.bind(this, function(event, args) {\n\n      this.$rootScope.$broadcast('doneExiting');\n    }));\n  };\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * Add a stamp in the authoring\n   */\n  authoringAddStampButtonClicked() {\n\n    // create the stamps field in the content if it does not exist\n    if (this.authoringComponentContent != null) {\n\n      // create a stamps object if it does not exist\n      if (this.authoringComponentContent.stamps == null) {\n        this.authoringComponentContent.stamps = {};\n      }\n\n      // create the Stamps array if it does not exist\n      if (this.authoringComponentContent.stamps.Stamps == null) {\n        this.authoringComponentContent.stamps.Stamps = [];\n      }\n    }\n\n    /*\n     * create the stamp as an empty string that the author will replace\n     * with a file name or url\n     */\n    this.authoringComponentContent.stamps.Stamps.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a stamp up in the authoring view\n   * @param index the index of the stamp\n   */\n  authoringStampUpClicked(index) {\n\n    // check if the stamp is not already at the top\n    if (index != 0) {\n      // the stamp is not at the top\n\n      // get the stamp string\n      var stamp = this.authoringComponentContent.stamps.Stamps[index];\n\n      // remove the stamp\n      this.authoringComponentContent.stamps.Stamps.splice(index, 1);\n\n      // insert the stamp back into the array\n      this.authoringComponentContent.stamps.Stamps.splice(index - 1, 0, stamp);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Move the stamp down in the authoring view\n   * @param index the index of the stamp\n   */\n  authoringStampDownClicked(index) {\n\n    // check if the stamp is already at the bottom\n    if (index != this.authoringComponentContent.stamps.Stamps.length - 1) {\n      // the stamp is not at the bottom\n\n      // get the stamp string\n      var stamp = this.authoringComponentContent.stamps.Stamps[index];\n\n      // remove the stamp\n      this.authoringComponentContent.stamps.Stamps.splice(index, 1);\n\n      // insert the stamp back into the array\n      this.authoringComponentContent.stamps.Stamps.splice(index + 1, 0, stamp);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Delete a stamp from the authoring view\n   * @param index the index of the stamp\n   */\n  authoringDeleteStampClicked(index) {\n\n    // ask the author if they are sure they want to delete the stamp\n    var answer = confirm(this.$translate('draw.areYouSureYouWantToDeleteThisStamp') + '\\n\\n' + this.authoringComponentContent.stamps.Stamps[index]);\n\n    if (answer) {\n\n      // remove the stamp\n      this.authoringComponentContent.stamps.Stamps.splice(index, 1);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Enable all the tools\n   */\n  authoringEnableAllToolsButtonClicked() {\n\n    if (this.authoringComponentContent.tools == null) {\n      this.authoringComponentContent.tools = {};\n    }\n\n    // enable all the tools\n    this.authoringComponentContent.tools.select = true;\n    this.authoringComponentContent.tools.line = true;\n    this.authoringComponentContent.tools.shape = true;\n    this.authoringComponentContent.tools.freeHand = true;\n    this.authoringComponentContent.tools.text = true;\n    this.authoringComponentContent.tools.stamp = true;\n    this.authoringComponentContent.tools.strokeColor = true;\n    this.authoringComponentContent.tools.fillColor = true;\n    this.authoringComponentContent.tools.clone = true;\n    this.authoringComponentContent.tools.strokeWidth = true;\n    this.authoringComponentContent.tools.sendBack = true;\n    this.authoringComponentContent.tools.sendForward = true;\n    this.authoringComponentContent.tools.undo = true;\n    this.authoringComponentContent.tools.redo = true;\n    this.authoringComponentContent.tools.delete = true;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Disable all the tools\n   */\n  authoringDisableAllToolsButtonClicked() {\n\n    if (this.authoringComponentContent.tools == null) {\n      this.authoringComponentContent.tools = {};\n    }\n\n    // disable all the tools\n    this.authoringComponentContent.tools.select = false;\n    this.authoringComponentContent.tools.line = false;\n    this.authoringComponentContent.tools.shape = false;\n    this.authoringComponentContent.tools.freeHand = false;\n    this.authoringComponentContent.tools.text = false;\n    this.authoringComponentContent.tools.stamp = false;\n    this.authoringComponentContent.tools.strokeColor = false;\n    this.authoringComponentContent.tools.fillColor = false;\n    this.authoringComponentContent.tools.clone = false;\n    this.authoringComponentContent.tools.strokeWidth = false;\n    this.authoringComponentContent.tools.sendBack = false;\n    this.authoringComponentContent.tools.sendForward = false;\n    this.authoringComponentContent.tools.undo = false;\n    this.authoringComponentContent.tools.redo = false;\n    this.authoringComponentContent.tools.delete = false;\n  }\n\n  /**\n   * Save the starter draw data\n   */\n  authoringSaveStarterDrawData() {\n\n    let answer = confirm(this.$translate('draw.areYouSureYouWantToSaveTheStarterDrawing'));\n\n    if (answer) {\n      // get the draw data\n      var drawData = this.getDrawData();\n\n      // set the starter draw data\n      this.authoringComponentContent.starterDrawData = drawData;\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Delete the starter draw data\n   */\n  authoringDeleteStarterDrawData() {\n\n    let answer = confirm(this.$translate('draw.areYouSureYouWantToDeleteTheStarterDrawing'));\n\n    if (answer) {\n      // remove the starter draw data\n      this.authoringComponentContent.starterDrawData = null;\n\n      // clear the drawing\n      this.drawingTool.clear();\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The author has changed the width\n   */\n  authoringViewWidthChanged() {\n\n    // update the width\n    this.width = this.authoringComponentContent.width;\n\n    // update the starter draw data if there is any\n    if (this.authoringComponentContent.starterDrawData != null) {\n\n      // get the starter draw data as a JSON object\n      var starterDrawDataJSONObject = angular.fromJson(this.authoringComponentContent.starterDrawData);\n\n      if (starterDrawDataJSONObject != null && starterDrawDataJSONObject.dt != null) {\n\n        // update the width in the starter draw data\n        starterDrawDataJSONObject.dt.width = this.width;\n\n        // set the starter draw data back into the component content\n        this.authoringComponentContent.starterDrawData = angular.toJson(starterDrawDataJSONObject);\n      }\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n\n    // re-initialize the drawing tool so the width is updated\n    this.$timeout(angular.bind(this, this.initializeDrawingTool));\n  }\n\n  /**\n   * The author has changed the height\n   */\n  authoringViewHeightChanged() {\n\n    // update the height\n    this.height = this.authoringComponentContent.height;\n\n    // update the starter draw data if there is any\n    if (this.authoringComponentContent.starterDrawData != null) {\n\n      // get the starter draw data as a JSON object\n      var starterDrawDataJSONObject = angular.fromJson(this.authoringComponentContent.starterDrawData);\n\n      if (starterDrawDataJSONObject != null && starterDrawDataJSONObject.dt != null) {\n\n        // update the height in the starter draw data\n        starterDrawDataJSONObject.dt.height = this.height;\n\n        // set the starter draw data back into the component content\n        this.authoringComponentContent.starterDrawData = angular.toJson(starterDrawDataJSONObject);\n      }\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n\n    // re-initialize the drawing tool so the height is updated\n    this.$timeout(angular.bind(this, this.initializeDrawingTool));\n  }\n\n  /**\n   * The author has enabled or disabled a tool\n   */\n  authoringViewToolClicked() {\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n\n    // re-initialize the drawing tool so the height is updated\n    this.$timeout(angular.bind(this, this.initializeDrawingTool));\n  }\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose the background image\n   */\n  chooseBackgroundImage() {\n\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = 'background';\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n  /**\n   * The background has changed so we will update the starter draw data if\n   * it has been set and then save the project\n   */\n  authoringViewBackgroundChanged() {\n\n    // get the starter draw data string\n    var starterDrawData = this.authoringComponentContent.starterDrawData;\n\n    if (starterDrawData != null) {\n\n      // get the starter draw data JSON object\n      var starterDrawDataJSON = angular.fromJson(starterDrawData);\n\n      if (starterDrawDataJSON != null &&\n        starterDrawDataJSON.canvas != null &&\n        starterDrawDataJSON.canvas.backgroundImage != null &&\n        starterDrawDataJSON.canvas.backgroundImage.src != null) {\n\n        // get the background\n        var background = this.authoringComponentContent.background;\n\n        /*\n         * get the project assets directory path\n         * e.g. https://www.berkeley.edu/curriculum/25/assets\n         */\n        var projectAssetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath(true);\n\n        /*\n         * generate the absolute path to the background image\n         * e.g. https://www.berkeley.edu/curriculum/25/assets/earth.png\n         */\n        var newSrc = projectAssetsDirectoryPath + '/' + background;\n\n        // set the new src\n        starterDrawDataJSON.canvas.backgroundImage.src = newSrc;\n\n        // convert the starter draw data back into a string\n        this.authoringComponentContent.starterDrawData = angular.toJson(starterDrawDataJSON);\n      }\n    }\n\n    // save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a connected component\n   */\n  addConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.updateOn = 'change';\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  deleteConnectedComponent(index) {\n\n    if (this.authoringComponentContent.connectedComponents != null) {\n      this.authoringComponentContent.connectedComponents.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Set the show submit button value\n   * @param show whether to show the submit button\n   */\n  setShowSubmitButtonValue(show) {\n\n    if (show == null || show == false) {\n      // we are hiding the submit button\n      this.authoringComponentContent.showSaveButton = false;\n      this.authoringComponentContent.showSubmitButton = false;\n    } else {\n      // we are showing the submit button\n      this.authoringComponentContent.showSaveButton = true;\n      this.authoringComponentContent.showSubmitButton = true;\n    }\n\n    /*\n     * notify the parent node that this component is changing its\n     * showSubmitButton value so that it can show save buttons on the\n     * step or sibling components accordingly\n     */\n    this.$scope.$emit('componentShowSubmitButtonValueChanged', {nodeId: this.nodeId, componentId: this.componentId, showSubmitButton: show});\n  }\n\n  /**\n   * The showSubmitButton value has changed\n   */\n  showSubmitButtonValueChanged() {\n\n    /*\n     * perform additional processing for when we change the showSubmitButton\n     * value\n     */\n    this.setShowSubmitButtonValue(this.authoringComponentContent.showSubmitButton);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Open the asset choose to select an image for the stamp\n   * @param index the index of the stamp\n   */\n  chooseStampImage(index) {\n\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = 'stamp';\n    params.targetObject = index;\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n  /**\n   * Set the stamp image\n   * @param index the index of the stamp\n   * @param fileName the file name of the image\n   */\n  setStampImage(index, fileName) {\n    this.authoringComponentContent.stamps.Stamps[index] = fileName;\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      if (this.componentContent != null &&\n          this.componentContent.background != null) {\n\n        /*\n         * this component has a background so we will use it instead of\n         * the background from the connected\n         */\n        this.drawingTool.setBackgroundImage(this.componentContent.background);\n      }\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      // used to collect the objects from all the component states\n      let allObjects = [];\n\n      // the draw data from the first component state\n      let firstDrawData = {};\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n        if (componentState.componentType == 'Draw') {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            let drawData = studentData.drawData;\n\n            if (drawData != null) {\n\n              // convert the JSON string to a JSON object\n              let drawDataJSON = angular.fromJson(drawData);\n\n              if (drawDataJSON != null &&\n                drawDataJSON.canvas != null &&\n                drawDataJSON.canvas.objects != null) {\n\n                if (c == 0) {\n                  // remember the first draw data\n                  firstDrawData = drawDataJSON;\n                }\n\n                // append the objects\n                allObjects = allObjects.concat(drawDataJSON.canvas.objects);\n              }\n            }\n          }\n        } else if (componentState.componentType == 'Graph' ||\n            componentState.componentType == 'ConceptMap' ||\n            componentState.componentType == 'Embedded' ||\n            componentState.componentType == 'Label' ||\n            componentState.componentType == 'Table') {\n          let connectedComponent =\n            this.UtilService.getConnectedComponentByComponentState(this.componentContent, componentState);\n          if (connectedComponent.importWorkAsBackground === true) {\n            this.setComponentStateAsBackgroundImage(componentState);\n          }\n        }\n      }\n\n      if (allObjects != null) {\n\n        // create the draw data with all the objects\n        let drawData = firstDrawData;\n\n        if (drawData != null &&\n            drawData.canvas != null &&\n            drawData.canvas.objects != null) {\n\n          drawData.canvas.objects = allObjects;\n        }\n\n        // set the draw data JSON string into the component state\n        mergedComponentState.studentData = {};\n        mergedComponentState.studentData.drawData = angular.toJson(drawData);\n      }\n    }\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Create an image from a component state and set the image as the background.\n   * @param componentState A component state.\n   */\n  setComponentStateAsBackgroundImage(componentState) {\n    this.UtilService.generateImageFromComponentState(componentState).then((image) => {\n      this.drawingTool.setBackgroundImage(image.url);\n    });\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'importWork';\n          this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      delete connectedComponent.importWorkAsBackground;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n      this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * If the component type is a certain type, we will set the importWorkAsBackground\n   * field to true.\n   * @param connectedComponent 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to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return 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\ No newline at end of file
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drawingTool from 'lib/drawingTool/drawing-tool';\nimport drawingToolVendor from 'lib/drawingTool/vendor.min';\nimport html2canvas from 'html2canvas';\n\nclass DrawController {\n  constructor($filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      $timeout,\n      AnnotationService,\n      ConfigService,\n      DrawService,\n      NodeService,\n      NotebookService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.$timeout = $timeout;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.DrawService = DrawService;\n    this.NodeService = NodeService;\n    this.NotebookService = NotebookService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n\n    this.idToOrder = this.ProjectService.idToOrder;\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether the student work has changed since last submit\n    this.isSubmitDirty = false;\n\n    // whether the save button is shown or not\n    this.isSaveButtonVisible = false;\n\n    // whether the submit button is shown or not\n    this.isSubmitButtonVisible = false;\n\n    // counter to keep track of the number of submits\n    this.submitCounter = 0;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // whether the reset button is visible or not\n    this.isResetButtonVisible = false;\n\n    // whether the snip drawing button is shown or not\n    this.isSnipDrawingButtonVisible = true;\n\n    // the label for the notebook in thos project\n    this.notebookConfig = this.NotebookService.getNotebookConfig();\n\n    // message to show next to save/submit buttons\n    this.saveMessage = {\n      text: '',\n      time: ''\n    };\n\n    // whether this part is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // will hold the drawing tool object\n    this.drawingTool = null;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    this.latestConnectedComponentState = null;\n    this.latestConnectedComponentParams = null;\n\n    // the default width and height of the canvas\n    this.width = 800;\n    this.height = 600;\n\n    if (this.componentContent.width != null) {\n      this.width = this.componentContent.width;\n    }\n\n    if (this.componentContent.height != null) {\n      this.height = this.componentContent.height;\n    }\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      { type: 'ConceptMap' },\n      { type: 'Draw' },\n      { type: 'Embedded' },\n      { type: 'Graph' },\n      { type: 'Label' },\n      { type: 'Table' }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n\n      // get the component type\n      this.componentType = this.componentContent.type;\n\n      if (this.mode === 'student') {\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.isResetButtonVisible = true;\n\n        this.drawingToolId = 'drawingtool_' + this.nodeId + '_' + this.componentId;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n      } else if (this.mode === 'grading' || this.mode === 'gradingRevision' || this.mode === 'onlyShowWork') {\n        this.isSnipDrawingButtonVisible = false;\n\n        // get the component state from the scope\n        let componentState = this.$scope.componentState;\n\n        if (componentState != null) {\n          // create a unique id for the application drawing tool element using this component state\n          this.drawingToolId = 'drawingtool_' + componentState.id;\n          if (this.mode === 'gradingRevision') {\n            this.drawingToolId = 'drawingtool_gradingRevision_' + componentState.id;\n          }\n        }\n\n        if (this.mode === 'grading') {\n          // get the latest annotations\n          this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n        }\n      } else if (this.mode === 'showPreviousWork') {\n        // get the component state from the scope\n        var componentState = this.$scope.componentState;\n        if (componentState != null) {\n          this.drawingToolId = 'drawingtool_' + componentState.id;\n        }\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isSnipDrawingButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'authoring') {\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        this.isResetButtonVisible = true;\n\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.drawingToolId = 'drawingtool_' + this.nodeId + '_' + this.componentId;\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n          this.submitCounter = 0;\n          this.initializeDrawingTool();\n          this.isSaveButtonVisible = this.componentContent.showSaveButton;\n          this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n        }.bind(this), true);\n      }\n\n      // running this in side a timeout ensures that the code only runs after the markup is rendered.\n      // maybe there's a better way to do this, like with an event?\n      this.$timeout(angular.bind(this, this.initializeDrawingTool));\n    }\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @param isSubmit boolean whether the request is coming from a submit\n     * action (optional; default is false)\n     * @return a component state containing the student data\n     */\n    this.$scope.getComponentState = function(isSubmit) {\n      let deferred = this.$q.defer();\n      let getState = false;\n      let action = 'change';\n\n      if (isSubmit) {\n        if (this.$scope.drawController.isSubmitDirty) {\n          getState = true;\n          action = 'submit';\n        }\n      } else {\n        if (this.$scope.drawController.isDirty) {\n          getState = true;\n          action = 'save';\n        }\n      }\n\n      if (getState) {\n        // create a component state populated with the student data\n        this.$scope.drawController.createComponentState(action).then((componentState) => {\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', angular.bind(this, function(event, args) {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n\n        // trigger the submit\n        var submitTriggeredBy = 'nodeSubmitButton';\n        this.submit(submitTriggeredBy);\n      }\n    }));\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', angular.bind(this, function(event, args) {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // set isDirty to false because the component state was just saved and notify node\n        this.isDirty = false;\n        this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: false});\n\n        let isAutoSave = componentState.isAutoSave;\n        let isSubmit = componentState.isSubmit;\n        let serverSaveTime = componentState.serverSaveTime;\n        let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n\n        // set save message\n        if (isSubmit) {\n          this.setSaveMessage(this.$translate('SUBMITTED'), clientSaveTime);\n\n          this.lockIfNecessary();\n\n          // set isSubmitDirty to false because the component state was just submitted and notify node\n          this.isSubmitDirty = false;\n          this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        } else if (isAutoSave) {\n          this.setSaveMessage(this.$translate('AUTO_SAVED'), clientSaveTime);\n        } else {\n          this.setSaveMessage(this.$translate('SAVED'), clientSaveTime);\n        }\n      }\n\n      // check if the component state is from a connected component\n      if (this.ProjectService.isConnectedComponent(this.nodeId, this.componentId, componentState.componentId)) {\n\n        // get the connected component params\n        var connectedComponentParams = this.ProjectService.getConnectedComponentParams(this.componentContent, componentState.componentId);\n\n        if (connectedComponentParams != null) {\n\n          if (connectedComponentParams.updateOn === 'save' ||\n            (connectedComponentParams.updateOn === 'submit' && componentState.isSubmit)) {\n\n            var performUpdate = false;\n\n            /*\n             * make a copy of the component state so we don't accidentally\n             * change any values in the referenced object\n             */\n            componentState = this.UtilService.makeCopyOfJSONObject(componentState);\n\n            /*\n             * check if the the canvas is empty which means the student has\n             * not drawn anything yet\n             */\n            if (this.isCanvasEmpty()) {\n              performUpdate = true;\n            } else {\n              /*\n               * the student has drawn on the canvas so we\n               * will ask them if they want to update it\n               */\n              var answer = confirm(this.$translate('draw.doYouWantToUpdateTheConnectedDrawing'));\n\n              if (answer) {\n                // the student answered yes\n                performUpdate = true;\n              }\n            }\n\n            if (performUpdate) {\n\n              if (!connectedComponentParams.includeBackground) {\n                // remove the background from the draw data\n                this.DrawService.removeBackgroundFromComponentState(componentState);\n              }\n\n              // update the draw data\n              this.setDrawData(componentState);\n\n              // the table has changed\n              this.$scope.drawController.isDirty = true;\n              this.$scope.drawController.isSubmitDirty = true;\n            }\n\n            /*\n             * remember the component state and connected component params\n             * in case we need to use them again later\n             */\n            this.latestConnectedComponentState = componentState;\n            this.latestConnectedComponentParams = connectedComponentParams;\n          }\n        }\n      }\n    }));\n\n    /*\n     * Listen for the requestImage event which is fired when something needs\n     * an image representation of the student data from a specific\n     * component.\n     */\n    this.$scope.$on('requestImage', (event, args) => {\n      // get the node id and component id from the args\n      var nodeId = args.nodeId;\n      var componentId = args.componentId;\n\n      // check if the image is being requested from this component\n      if (this.nodeId === nodeId && this.componentId === componentId) {\n\n        // obtain the image blob\n        var imageObject = this.getImageObject();\n\n        if (imageObject != null) {\n          var args = {};\n          args.nodeId = nodeId;\n          args.componentId = componentId;\n          args.imageObject = imageObject;\n\n          // fire an event that contains the image object\n          this.$scope.$emit('requestImageCallback', args);\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', angular.bind(this, function(event, args) {\n\n    }));\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'background') {\n                // the target is the background image\n\n                // set the background file name\n                this.authoringComponentContent.background = fileName;\n\n                /*\n                 * the authoring view background has changed so we will\n                 * perform any changes if needed and then save the project\n                 */\n                this.authoringViewBackgroundChanged();\n              } else if (args.target == 'stamp') {\n                // the target is a stamp\n\n                // get the index of the stamp\n                var stampIndex = args.targetObject;\n\n                // get the file name\n                var fileName = assetItem.fileName;\n\n                // set the stamp image\n                this.setStampImage(stampIndex, fileName);\n\n                /*\n                 * the authoring view background has changed so we will\n                 * perform any changes if needed and then save the project\n                 */\n                this.authoringViewBackgroundChanged();\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n\n    this.$scope.$on('notebookItemChosen', (event, args) => {\n      if (args.requester == this.nodeId + '-' + this.componentId) {\n        const notebookItem = args.notebookItem;\n        const studentWorkId = notebookItem.content.studentWorkIds[0];\n        this.importWorkByStudentWorkId(studentWorkId);\n      }\n    });\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }  // end of constructor\n\n  /**\n   * Initialize the drawing tool\n   */\n  initializeDrawingTool() {\n\n    this.drawingTool = new DrawingTool('#' + this.drawingToolId, {\n      stamps: this.componentContent.stamps || {},\n      parseSVG: true,\n      width: this.width,\n      height: this.height\n    });\n    var state = null;\n    $('#set-background').on('click', angular.bind(this, function () {\n      this.drawingTool.setBackgroundImage($('#background-src').val());\n    }));\n    $('#resize-background').on('click', angular.bind(this, function () {\n      this.drawingTool.resizeBackgroundToCanvas();\n    }));\n    $('#resize-canvas').on('click', angular.bind(this, function () {\n      this.drawingTool.resizeCanvasToBackground();\n    }));\n    $('#shrink-background').on('click', angular.bind(this, function () {\n      this.drawingTool.shrinkBackgroundToCanvas();\n    }));\n    $('#clear').on('click', angular.bind(this, function () {\n      this.drawingTool.clear(true);\n    }));\n    $('#save').on('click', angular.bind(this, function () {\n      state = drawingTool.save();\n      $('#load').removeAttr('disabled');\n    }));\n    $('#load').on('click', angular.bind(this, function () {\n      if (state === null) return;\n      this.drawingTool.load(state);\n    }));\n\n    var componentState = null;\n\n    // get the component state from the scope\n    componentState = this.$scope.componentState;\n\n    // set whether studentAttachment is enabled\n    this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n    if (this.mode == 'student') {\n      if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {\n        // we will show work from another component\n        this.handleConnectedComponents();\n      }  else if (this.DrawService.componentStateHasStudentWork(componentState, this.componentContent)) {\n        /*\n         * the student has work so we will populate the work into this\n         * component\n         */\n        this.setStudentWork(componentState);\n      } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (componentState == null ||\n             !this.DrawService.componentStateHasStudentWork(componentState, this.componentContent)) {\n        /*\n         * only import work or use starter draw data if the student\n         * does not already have work for this component\n         */\n\n        // check if we need to import work\n        var importPreviousWorkNodeId = this.componentContent.importPreviousWorkNodeId;\n        var importPreviousWorkComponentId = this.componentContent.importPreviousWorkComponentId;\n\n        // get the starter draw data if any\n        var starterDrawData = this.componentContent.starterDrawData;\n\n        if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n          /*\n           * check if the node id is in the field that we used to store\n           * the import previous work node id in\n           */\n          importPreviousWorkNodeId = this.componentContent.importWorkNodeId;\n        }\n\n        if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n          /*\n           * check if the component id is in the field that we used to store\n           * the import previous work component id in\n           */\n          importPreviousWorkComponentId = this.componentContent.importWorkComponentId;\n        }\n\n        if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n          if (this.componentContent.background != null) {\n            // set the background from the component content\n            this.drawingTool.setBackgroundImage(this.componentContent.background);\n          }\n\n          // import the work from the other component\n          this.importWork();\n        } else if (starterDrawData != null) {\n          // there is starter draw data so we will populate it into the draw tool\n          this.drawingTool.load(starterDrawData);\n\n          if (this.componentContent.background != null) {\n            // set the background from the component content\n            this.drawingTool.setBackgroundImage(this.componentContent.background);\n          }\n        } else {\n          if (this.componentContent.background != null) {\n            // set the background from the component content\n            this.drawingTool.setBackgroundImage(this.componentContent.background);\n          }\n        }\n      }\n    } else if (this.mode == 'authoring') {\n\n      if (this.componentContent.starterDrawData != null) {\n        // there is starter draw data so we will populate it into the draw tool\n        this.drawingTool.load(this.componentContent.starterDrawData);\n      }\n\n      if (this.componentContent.background != null) {\n        this.drawingTool.setBackgroundImage(this.componentContent.background);\n      }\n    } else {\n      // populate the student work into this component\n      this.setStudentWork(componentState);\n    }\n\n    // check if the student has used up all of their submits\n    if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n      /*\n       * the student has used up all of their chances to submit so we\n       * will disable the submit button\n       */\n      this.isSubmitButtonDisabled = true;\n    }\n\n    // check if we need to lock this component\n    this.calculateDisabled();\n\n    // register this component with the parent node\n    if (this.$scope.$parent && this.$scope.$parent.nodeController != null) {\n      this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n    }\n\n    /*\n     * Wait before we start listening for the drawing:changed event. We need to wait\n     * because the calls above to this.drawingTool.setBackgroundImage() will cause\n     * the drawing:changed event to be fired from the drawingTool, but when that happens,\n     * we don't want to call this.studentDataChanged() because it marks the student work\n     * as dirty. We only want to call this.studentDataChanged() when the drawing:changed\n     * event occurs in response to the student changing the drawing and this timeout\n     * will help make sure of that.\n     */\n    this.$timeout(angular.bind(this, () => {\n      this.drawingTool.on('drawing:changed', angular.bind(this, this.studentDataChanged));\n    }), 500);\n\n    if (this.mode === 'student') {\n      // listen for selected tool changed event\n      this.drawingTool.on('tool:changed', function (toolName) {\n        // log this event\n        var category = 'Tool';\n        var event = 'toolSelected';\n        var data = {};\n        data.selectedToolName = toolName;\n        this.StudentDataService.saveComponentEvent(this, category, event, data);\n      }.bind(this));\n    }\n\n    if (this.mode === 'grading' || this.mode === 'gradingRevision' || this.mode === 'onlyShowWork') {\n      // we're in show student work mode, so hide the toolbar and make the drawing non-editable\n      $('#' + this.drawingToolId).find('.dt-tools').hide();\n    } else {\n      // show or hide the draw tools\n      this.setupTools();\n    }\n  }\n\n  /**\n   * Setup the tools that we will make available to the student\n   */\n  setupTools() {\n\n    // get the tools values from the authored content\n    var tools = this.componentContent.tools;\n\n    if (tools == null) {\n      // we will display all the tools\n    } else {\n      // we will only display the tools the authored specified to show\n\n      // the title for the select button\n      var selectTitle = this.$translate('draw.selectToolTooltip');\n      let $drawingTool = $('#' + this.drawingToolId);\n\n      if (tools.select) {\n        $drawingTool.find('[title=\"' + selectTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + selectTitle + '\"]').hide();\n      }\n\n      // the title for the line button\n      var lineTitle = this.$translate('draw.lineToolTooltip');\n\n      if (tools.line) {\n        $drawingTool.find('[title=\"' + lineTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + lineTitle + '\"]').hide();\n      }\n\n      // the title for the shape button\n      var shapeTitle = this.$translate('draw.shapeToolTooltip');\n\n      if (tools.shape) {\n        $drawingTool.find('[title=\"' + shapeTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + shapeTitle + '\"]').hide();\n      }\n\n      // the title for the free hand button\n      var freeHandTitle = this.$translate('draw.freeHandToolTooltip');\n\n      if (tools.freeHand) {\n        $drawingTool.find('[title=\"' + freeHandTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + freeHandTitle + '\"]').hide();\n      }\n\n      // the title for the text button\n      var textTitle = this.$translate('draw.textToolTooltip');\n\n      if (tools.text) {\n        $drawingTool.find('[title=\"' + textTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + textTitle + '\"]').hide();\n      }\n\n      // the title for the stamp button\n      var stampTitle = this.$translate('draw.stampToolTooltip');\n\n      if (tools.stamp) {\n        $drawingTool.find('[title=\"' + stampTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + stampTitle + '\"]').hide();\n      }\n\n      // the title for the clone button\n      var cloneTitle = this.$translate('draw.cloneToolTooltip');\n\n      if (tools.clone) {\n        $drawingTool.find('[title=\"' + cloneTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + cloneTitle + '\"]').hide();\n      }\n\n      // the title for the stroke color button\n      var strokeColorTitle = this.$translate('draw.strokeColorToolTooltip');\n\n      if (tools.strokeColor) {\n        $drawingTool.find('[title=\"' + strokeColorTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + strokeColorTitle + '\"]').hide();\n      }\n\n      // the title for the fill color button\n      var fillColorTitle = this.$translate('draw.fillColorToolTooltip');\n\n      if (tools.fillColor) {\n        $drawingTool.find('[title=\"' + fillColorTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + fillColorTitle + '\"]').hide();\n      }\n\n      // the title for the stroke width button\n      var strokeWidthTitle = this.$translate('draw.strokeWidthToolTooltip');\n\n      if (tools.strokeWidth) {\n        $drawingTool.find('[title=\"' + strokeWidthTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + strokeWidthTitle + '\"]').hide();\n      }\n\n      // the title for the send back button\n      var sendBackTitle = this.$translate('draw.sendBackToolTooltip');\n\n      if (tools.sendBack) {\n        $drawingTool.find('[title=\"' + sendBackTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + sendBackTitle + '\"]').hide();\n      }\n\n      // the title for the send forward button\n      var sendForwardTitle = this.$translate('draw.sendForwardToolTooltip');\n\n      if (tools.sendForward) {\n        $drawingTool.find('[title=\"' + sendForwardTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + sendForwardTitle + '\"]').hide();\n      }\n\n      // the title for the undo button\n      var undoTitle = this.$translate('draw.undo');\n\n      if (tools.undo) {\n        $drawingTool.find('[title=\"' + undoTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + undoTitle + '\"]').hide();\n      }\n\n      // the title for the redo button\n      var redoTitle = this.$translate('draw.redo');\n\n      if (tools.redo) {\n        $drawingTool.find('[title=\"' + redoTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + redoTitle + '\"]').hide();\n      }\n\n      // the title for the delete button\n      var deleteTitle = this.$translate('draw.deleteToolTooltip');\n\n      if (tools.delete) {\n        $drawingTool.find('[title=\"' + deleteTitle + '\"]').show();\n      } else {\n        $drawingTool.find('[title=\"' + deleteTitle + '\"]').hide();\n      }\n\n      if (this.isDisabled) {\n        $drawingTool.find('.dt-tools').hide();\n      }\n    }\n  }\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n\n      // set the draw data\n      this.setDrawData(componentState);\n\n      /*\n       * check if the latest component state is a submit and perform\n       * any necessary processing\n       */\n       this.processLatestSubmit();\n    }\n  };\n\n  /**\n   * Check if latest component state is a submission and set isSubmitDirty accordingly\n   */\n  processLatestSubmit() {\n    let latestState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n    if (latestState) {\n      let serverSaveTime = latestState.serverSaveTime;\n      let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n      if (latestState.isSubmit) {\n        // latest state is a submission, so set isSubmitDirty to false and notify node\n        this.isSubmitDirty = false;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SUBMITTED'), clientSaveTime);\n      } else {\n        // latest state is not a submission, so set isSubmitDirty to true and notify node\n        this.isSubmitDirty = true;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SAVED'), clientSaveTime);\n      }\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n    this.isSubmit = false;\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    // trigger the submit\n    var submitTriggeredBy = 'componentSubmitButton';\n    this.submit(submitTriggeredBy);\n  };\n\n\n  /**\n   * A submit was triggered by the component submit button or node submit button\n   * @param submitTriggeredBy what triggered the submit\n   * e.g. 'componentSubmitButton' or 'nodeSubmitButton'\n   */\n  submit(submitTriggeredBy) {\n\n    if (this.isSubmitDirty) {\n      // the student has unsubmitted work\n\n      var performSubmit = true;\n\n      if (this.componentContent.maxSubmitCount != null) {\n        // there is a max submit count\n\n        // calculate the number of submits this student has left\n        var numberOfSubmitsLeft = this.componentContent.maxSubmitCount - this.submitCounter;\n\n        var message = '';\n\n        if (numberOfSubmitsLeft <= 0) {\n          // the student does not have any more chances to submit\n          performSubmit = false;\n        } else if (numberOfSubmitsLeft == 1) {\n          /*\n           * the student has one more chance to submit left so maybe\n           * we should ask the student if they are sure they want to submit\n           */\n        } else if (numberOfSubmitsLeft > 1) {\n          /*\n           * the student has more than one chance to submit left so maybe\n           * we should ask the student if they are sure they want to submit\n           */\n        }\n      }\n\n      if (performSubmit) {\n\n        /*\n         * set isSubmit to true so that when the component state is\n         * created, it will know that is a submit component state\n         * instead of just a save component state\n         */\n        this.isSubmit = true;\n\n        // increment the submit counter\n        this.incrementSubmitCounter();\n\n        // check if the student has used up all of their submits\n        if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n          /*\n           * the student has used up all of their submits so we will\n           * disable the submit button\n           */\n          this.isSubmitButtonDisabled = true;\n        }\n\n        if (this.mode === 'authoring') {\n          /*\n           * we are in authoring mode so we will set values appropriately\n           * here because the 'componentSubmitTriggered' event won't\n           * work in authoring mode\n           */\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.createComponentState('submit');\n        }\n\n        if (submitTriggeredBy == null || submitTriggeredBy === 'componentSubmitButton') {\n          // tell the parent node that this component wants to submit\n          this.$scope.$emit('componentSubmitTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n        } else if (submitTriggeredBy === 'nodeSubmitButton') {\n          // nothing extra needs to be performed\n        }\n      } else {\n        /*\n         * the student has cancelled the submit so if a component state\n         * is created, it will just be a regular save and not submit\n         */\n        this.isSubmit = false;\n      }\n    }\n  }\n\n  /**\n   * Increment the submit counter\n   */\n  incrementSubmitCounter() {\n    this.submitCounter++;\n  }\n\n  /**\n   * The reset button was clicked\n   */\n  resetButtonClicked() {\n\n    // ask the student if they are sure they want to clear the drawing\n    var result = confirm(this.$translate('draw.areYouSureYouWantToClearYourDrawing'));\n\n    if (result) {\n      // clear the drawing\n      this.drawingTool.clear();\n\n      if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n        // we will import work from another component\n        this.handleConnectedComponents();\n      } else if (this.latestConnectedComponentState && this.latestConnectedComponentParams) {\n        // reload the student data from the connected component\n        this.setDrawData(latestConnectedComponentState, latestConnectedComponentParams);\n      } else if (this.componentContent.importPreviousWorkNodeId != null &&\n             this.componentContent.importPreviousWorkNodeId != '' &&\n             this.componentContent.importPreviousWorkComponentId != null &&\n             this.componentContent.importPreviousWorkComponentId != '') {\n\n        // this component imports work from another component\n\n        // boolean flag to overwrite the work when we import\n        var overwrite = true;\n\n        // import work from another component\n        this.importWork(overwrite);\n      } else if (this.componentContent.starterDrawData != null) {\n        // this component has starter draw data\n\n        // there is starter draw data so we will populate it into the draw tool\n        this.drawingTool.load(this.componentContent.starterDrawData);\n      }\n\n      if (this.componentContent.background != null && this.componentContent.background != '') {\n        // set the background\n        this.drawingTool.setBackgroundImage(this.componentContent.background);\n      }\n\n      this.parentStudentWorkIds = null;\n    }\n  }\n\n  lockIfNecessary() {\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flag so we will know we need to save the\n     * student work later\n     */\n    this.isDirty = true;\n    this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: true});\n\n    this.isSubmitDirty = true;\n    this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n\n    // clear out the save message\n    this.setSaveMessage('', null);\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    var deferred = this.$q.defer();\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    var studentData = {};\n\n    // get the draw JSON string\n    var studentDataJSONString = this.getDrawData();\n\n    // set the draw JSON string into the draw data\n    studentData.drawData = studentDataJSONString;\n\n    // set the submit counter\n    studentData.submitCounter = this.submitCounter;\n\n    if (this.parentStudentWorkIds != null) {\n      studentData.parentStudentWorkIds = this.parentStudentWorkIds;\n    }\n\n    // set the flag for whether the student submitted this work\n    componentState.isSubmit = this.isSubmit;\n\n    // set the student data into the component state\n    componentState.studentData = studentData;\n\n    // set the component type\n    componentState.componentType = 'Draw';\n\n    // set the node id\n    componentState.nodeId = this.nodeId;\n\n    // set the component id\n    componentState.componentId = this.componentId;\n\n    /*\n     * reset the isSubmit value so that the next component state\n     * doesn't maintain the same value\n     */\n    this.isSubmit = false;\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n    /*\n     * we don't need to perform any additional processing so we can resolve\n     * the promise immediately\n     */\n    deferred.resolve(componentState);\n  }\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    var nodeId = this.nodeId;\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the step after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n    }\n\n    if (this.mode === 'showStudentWorkOnly') {\n      // distable saving if we're in showStudentWorkOnly mode\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Add student asset images as objects in the drawing canvas\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          fabric.Image.fromURL(copiedAsset.url, (oImg) => {\n            oImg.scaleToWidth(200);  // set max width and have height scale proportionally\n            // TODO: center image or put them at mouse position? Wasn't straight-forward, tried below but had issues...\n            //oImg.setLeft((this.drawingTool.canvas.width / 2) - (oImg.width / 2));  // center image vertically and horizontally\n            //oImg.setTop((this.drawingTool.canvas.height / 2) - (oImg.height / 2));\n            //oImg.center();\n            oImg.studentAssetId = copiedAsset.id;  // keep track of this asset id\n            this.drawingTool.canvas.add(oImg);   // add copied asset image to canvas\n          });\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the draw data\n   * @return the draw data from the drawing tool as a JSON string\n   */\n  getDrawData() {\n    var drawData = null;\n\n    drawData = this.drawingTool.save();\n\n    return drawData;\n  };\n\n  /**\n   * Import work from another component\n   * @param overwrite boolean value whether to import the work even if the\n   * student already has work for this component\n   */\n  importWork(overwrite) {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // get the import previous work node id and component id\n      var importPreviousWorkNodeId = componentContent.importPreviousWorkNodeId;\n      var importPreviousWorkComponentId = componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        if (componentContent.importWorkNodeId != null && componentContent.importWorkNodeId != '') {\n          importPreviousWorkNodeId = componentContent.importWorkNodeId;\n        }\n      }\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        if (componentContent.importWorkComponentId != null && componentContent.importWorkComponentId != '') {\n          importPreviousWorkComponentId = componentContent.importWorkComponentId;\n        }\n      }\n\n      if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null || overwrite == true) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importPreviousWorkNodeId, importPreviousWorkComponentId);\n\n          if (importWorkComponentState != null) {\n\n            if (importWorkComponentState.componentType == 'ConceptMap') {\n\n              var conceptMapData = null;\n\n              if (importWorkComponentState.studentData != null) {\n                // get the concept map data from the other component state\n                conceptMapData = importWorkComponentState.studentData.conceptMapData;\n              }\n\n              if (conceptMapData != null) {\n                var serviceName = 'ConceptMapService';\n\n                if (this.$injector.has(serviceName)) {\n\n                  // get the ConceptMapService\n                  var service = this.$injector.get(serviceName);\n\n                  // create an image from the concept map data\n                  service.createImage(conceptMapData, componentContent.width, componentContent.height).then((image) => {\n\n                    // set the image as the background\n                    this.drawingTool.setBackgroundImage(image);\n\n                    // make the work dirty so that it gets saved\n                    this.studentDataChanged();\n                  });\n                }\n              }\n            } else {\n              /*\n               * populate a new component state with the work from the\n               * imported component state\n               */\n              var populatedComponentState = this.DrawService.populateComponentState(importWorkComponentState);\n\n              // populate the component state into this component\n              this.setStudentWork(populatedComponentState);\n\n              if (this.componentContent.background != null && this.componentContent.background != '') {\n                // set the background\n                this.drawingTool.setBackgroundImage(this.componentContent.background);\n\n                // make the work dirty so that it gets saved\n                this.studentDataChanged();\n              }\n            }\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Get all the step node ids in the project\n   * @returns all the step node ids\n   */\n  getStepNodeIds() {\n    var stepNodeIds = this.ProjectService.getNodeIds();\n\n    return stepNodeIds;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Get the image object representation of the student data\n   * @returns an image object\n   */\n  getImageObject() {\n    var pngFile = null;\n\n    if (this.drawingTool != null && this.drawingTool.canvas != null) {\n\n      // get the image as a base64 string\n      var img_b64 = this.drawingTool.canvas.toDataURL('image/png');\n\n      // get the image object\n      pngFile = this.UtilService.getImageObjectFromBase64String(img_b64);\n    }\n\n    return pngFile;\n  }\n\n  /**\n   * Set the draw data\n   * @param componentState the component state\n   */\n  setDrawData(componentState) {\n    if (componentState != null) {\n\n      // get the student data from the component state\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        var submitCounter = studentData.submitCounter;\n\n        if (submitCounter != null) {\n          // populate the submit counter\n          this.submitCounter = submitCounter;\n        }\n\n        // get the draw data\n        var drawData = studentData.drawData;\n\n        if (drawData != null && drawData != '' && drawData != '{}') {\n          // set the draw data into the drawing tool\n          this.drawingTool.load(drawData);\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if the student has drawn anything\n   * @returns whether the canvas is empty\n   */\n  isCanvasEmpty() {\n\n    var result = true;\n\n    if (this.drawingTool != null && this.drawingTool.canvas != null) {\n\n      // get the objects in the canvas where the student draws\n      var objects = this.drawingTool.canvas.getObjects();\n\n      if (objects != null && objects.length > 0) {\n        // there are objects in the canvas\n        result = false;\n      }\n    }\n\n    return result;\n  }\n\n  /**\n   * Set the message next to the save button\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setSaveMessage(message, time) {\n    this.saveMessage.text = message;\n    this.saveMessage.time = time;\n  };\n\n\n  /**\n   * Check whether we need to show the snip drawing button\n   * @return whether to show the snip drawing button\n   */\n  showSnipDrawingButton() {\n    if (this.NotebookService.isNotebookEnabled() && this.isSnipDrawingButtonVisible) {\n      return true;\n    } else {\n      return false;\n    }\n  }\n\n  /**\n   * Snip the drawing by converting it to an image\n   * @param $event the click event\n   */\n  snipDrawing($event, studentWorkId) {\n    // get the canvas element\n    var canvas = angular.element('#drawingtool_' + this.nodeId + '_' + this.componentId + ' canvas');\n\n    if (canvas != null && canvas.length > 0) {\n\n      // get the top canvas\n      canvas = canvas[0];\n\n      // get the canvas as a base64 string\n      var img_b64 = canvas.toDataURL('image/png');\n\n      // get the image object\n      var imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n      // create a notebook item with the image populated into it\n      const noteText = null;\n      this.NotebookService.addNote($event, imageObject, noteText, [ studentWorkId ]);\n    }\n  }\n\n  snipButtonClicked($event) {\n    if (this.isDirty) {\n      const deregisterListener = this.$scope.$on('studentWorkSavedToServer',\n        (event, args) => {\n          let componentState = args.studentWork;\n          if (componentState &&\n            this.nodeId === componentState.nodeId &&\n            this.componentId === componentState.componentId) {\n            this.snipDrawing($event, componentState.id);\n            deregisterListener();\n          }\n        }\n      );\n      this.saveButtonClicked(); // trigger a save\n    } else {\n      const studentWork =\n          this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId)\n      this.snipDrawing($event, studentWork.id);\n    }\n  }\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    this.exitListener = this.$scope.$on('exit', angular.bind(this, function(event, args) {\n\n      this.$rootScope.$broadcast('doneExiting');\n    }));\n  };\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * Add a stamp in the authoring\n   */\n  authoringAddStampButtonClicked() {\n\n    // create the stamps field in the content if it does not exist\n    if (this.authoringComponentContent != null) {\n\n      // create a stamps object if it does not exist\n      if (this.authoringComponentContent.stamps == null) {\n        this.authoringComponentContent.stamps = {};\n      }\n\n      // create the Stamps array if it does not exist\n      if (this.authoringComponentContent.stamps.Stamps == null) {\n        this.authoringComponentContent.stamps.Stamps = [];\n      }\n    }\n\n    /*\n     * create the stamp as an empty string that the author will replace\n     * with a file name or url\n     */\n    this.authoringComponentContent.stamps.Stamps.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a stamp up in the authoring view\n   * @param index the index of the stamp\n   */\n  authoringStampUpClicked(index) {\n\n    // check if the stamp is not already at the top\n    if (index != 0) {\n      // the stamp is not at the top\n\n      // get the stamp string\n      var stamp = this.authoringComponentContent.stamps.Stamps[index];\n\n      // remove the stamp\n      this.authoringComponentContent.stamps.Stamps.splice(index, 1);\n\n      // insert the stamp back into the array\n      this.authoringComponentContent.stamps.Stamps.splice(index - 1, 0, stamp);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Move the stamp down in the authoring view\n   * @param index the index of the stamp\n   */\n  authoringStampDownClicked(index) {\n\n    // check if the stamp is already at the bottom\n    if (index != this.authoringComponentContent.stamps.Stamps.length - 1) {\n      // the stamp is not at the bottom\n\n      // get the stamp string\n      var stamp = this.authoringComponentContent.stamps.Stamps[index];\n\n      // remove the stamp\n      this.authoringComponentContent.stamps.Stamps.splice(index, 1);\n\n      // insert the stamp back into the array\n      this.authoringComponentContent.stamps.Stamps.splice(index + 1, 0, stamp);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Delete a stamp from the authoring view\n   * @param index the index of the stamp\n   */\n  authoringDeleteStampClicked(index) {\n\n    // ask the author if they are sure they want to delete the stamp\n    var answer = confirm(this.$translate('draw.areYouSureYouWantToDeleteThisStamp') + '\\n\\n' + this.authoringComponentContent.stamps.Stamps[index]);\n\n    if (answer) {\n\n      // remove the stamp\n      this.authoringComponentContent.stamps.Stamps.splice(index, 1);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Enable all the tools\n   */\n  authoringEnableAllToolsButtonClicked() {\n\n    if (this.authoringComponentContent.tools == null) {\n      this.authoringComponentContent.tools = {};\n    }\n\n    // enable all the tools\n    this.authoringComponentContent.tools.select = true;\n    this.authoringComponentContent.tools.line = true;\n    this.authoringComponentContent.tools.shape = true;\n    this.authoringComponentContent.tools.freeHand = true;\n    this.authoringComponentContent.tools.text = true;\n    this.authoringComponentContent.tools.stamp = true;\n    this.authoringComponentContent.tools.strokeColor = true;\n    this.authoringComponentContent.tools.fillColor = true;\n    this.authoringComponentContent.tools.clone = true;\n    this.authoringComponentContent.tools.strokeWidth = true;\n    this.authoringComponentContent.tools.sendBack = true;\n    this.authoringComponentContent.tools.sendForward = true;\n    this.authoringComponentContent.tools.undo = true;\n    this.authoringComponentContent.tools.redo = true;\n    this.authoringComponentContent.tools.delete = true;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Disable all the tools\n   */\n  authoringDisableAllToolsButtonClicked() {\n\n    if (this.authoringComponentContent.tools == null) {\n      this.authoringComponentContent.tools = {};\n    }\n\n    // disable all the tools\n    this.authoringComponentContent.tools.select = false;\n    this.authoringComponentContent.tools.line = false;\n    this.authoringComponentContent.tools.shape = false;\n    this.authoringComponentContent.tools.freeHand = false;\n    this.authoringComponentContent.tools.text = false;\n    this.authoringComponentContent.tools.stamp = false;\n    this.authoringComponentContent.tools.strokeColor = false;\n    this.authoringComponentContent.tools.fillColor = false;\n    this.authoringComponentContent.tools.clone = false;\n    this.authoringComponentContent.tools.strokeWidth = false;\n    this.authoringComponentContent.tools.sendBack = false;\n    this.authoringComponentContent.tools.sendForward = false;\n    this.authoringComponentContent.tools.undo = false;\n    this.authoringComponentContent.tools.redo = false;\n    this.authoringComponentContent.tools.delete = false;\n  }\n\n  /**\n   * Save the starter draw data\n   */\n  authoringSaveStarterDrawData() {\n\n    let answer = confirm(this.$translate('draw.areYouSureYouWantToSaveTheStarterDrawing'));\n\n    if (answer) {\n      // get the draw data\n      var drawData = this.getDrawData();\n\n      // set the starter draw data\n      this.authoringComponentContent.starterDrawData = drawData;\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Delete the starter draw data\n   */\n  authoringDeleteStarterDrawData() {\n\n    let answer = confirm(this.$translate('draw.areYouSureYouWantToDeleteTheStarterDrawing'));\n\n    if (answer) {\n      // remove the starter draw data\n      this.authoringComponentContent.starterDrawData = null;\n\n      // clear the drawing\n      this.drawingTool.clear();\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The author has changed the width\n   */\n  authoringViewWidthChanged() {\n\n    // update the width\n    this.width = this.authoringComponentContent.width;\n\n    // update the starter draw data if there is any\n    if (this.authoringComponentContent.starterDrawData != null) {\n\n      // get the starter draw data as a JSON object\n      var starterDrawDataJSONObject = angular.fromJson(this.authoringComponentContent.starterDrawData);\n\n      if (starterDrawDataJSONObject != null && starterDrawDataJSONObject.dt != null) {\n\n        // update the width in the starter draw data\n        starterDrawDataJSONObject.dt.width = this.width;\n\n        // set the starter draw data back into the component content\n        this.authoringComponentContent.starterDrawData = angular.toJson(starterDrawDataJSONObject);\n      }\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n\n    // re-initialize the drawing tool so the width is updated\n    this.$timeout(angular.bind(this, this.initializeDrawingTool));\n  }\n\n  /**\n   * The author has changed the height\n   */\n  authoringViewHeightChanged() {\n\n    // update the height\n    this.height = this.authoringComponentContent.height;\n\n    // update the starter draw data if there is any\n    if (this.authoringComponentContent.starterDrawData != null) {\n\n      // get the starter draw data as a JSON object\n      var starterDrawDataJSONObject = angular.fromJson(this.authoringComponentContent.starterDrawData);\n\n      if (starterDrawDataJSONObject != null && starterDrawDataJSONObject.dt != null) {\n\n        // update the height in the starter draw data\n        starterDrawDataJSONObject.dt.height = this.height;\n\n        // set the starter draw data back into the component content\n        this.authoringComponentContent.starterDrawData = angular.toJson(starterDrawDataJSONObject);\n      }\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n\n    // re-initialize the drawing tool so the height is updated\n    this.$timeout(angular.bind(this, this.initializeDrawingTool));\n  }\n\n  /**\n   * The author has enabled or disabled a tool\n   */\n  authoringViewToolClicked() {\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n\n    // re-initialize the drawing tool so the height is updated\n    this.$timeout(angular.bind(this, this.initializeDrawingTool));\n  }\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Show the asset popup to allow the author to choose the background image\n   */\n  chooseBackgroundImage() {\n\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = 'background';\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n  /**\n   * The background has changed so we will update the starter draw data if\n   * it has been set and then save the project\n   */\n  authoringViewBackgroundChanged() {\n\n    // get the starter draw data string\n    var starterDrawData = this.authoringComponentContent.starterDrawData;\n\n    if (starterDrawData != null) {\n\n      // get the starter draw data JSON object\n      var starterDrawDataJSON = angular.fromJson(starterDrawData);\n\n      if (starterDrawDataJSON != null &&\n        starterDrawDataJSON.canvas != null &&\n        starterDrawDataJSON.canvas.backgroundImage != null &&\n        starterDrawDataJSON.canvas.backgroundImage.src != null) {\n\n        // get the background\n        var background = this.authoringComponentContent.background;\n\n        /*\n         * get the project assets directory path\n         * e.g. https://www.berkeley.edu/curriculum/25/assets\n         */\n        var projectAssetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath(true);\n\n        /*\n         * generate the absolute path to the background image\n         * e.g. https://www.berkeley.edu/curriculum/25/assets/earth.png\n         */\n        var newSrc = projectAssetsDirectoryPath + '/' + background;\n\n        // set the new src\n        starterDrawDataJSON.canvas.backgroundImage.src = newSrc;\n\n        // convert the starter draw data back into a string\n        this.authoringComponentContent.starterDrawData = angular.toJson(starterDrawDataJSON);\n      }\n    }\n\n    // save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a connected component\n   */\n  addConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.updateOn = 'change';\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  deleteConnectedComponent(index) {\n\n    if (this.authoringComponentContent.connectedComponents != null) {\n      this.authoringComponentContent.connectedComponents.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Set the show submit button value\n   * @param show whether to show the submit button\n   */\n  setShowSubmitButtonValue(show) {\n\n    if (show == null || show == false) {\n      // we are hiding the submit button\n      this.authoringComponentContent.showSaveButton = false;\n      this.authoringComponentContent.showSubmitButton = false;\n    } else {\n      // we are showing the submit button\n      this.authoringComponentContent.showSaveButton = true;\n      this.authoringComponentContent.showSubmitButton = true;\n    }\n\n    /*\n     * notify the parent node that this component is changing its\n     * showSubmitButton value so that it can show save buttons on the\n     * step or sibling components accordingly\n     */\n    this.$scope.$emit('componentShowSubmitButtonValueChanged', {nodeId: this.nodeId, componentId: this.componentId, showSubmitButton: show});\n  }\n\n  /**\n   * The showSubmitButton value has changed\n   */\n  showSubmitButtonValueChanged() {\n\n    /*\n     * perform additional processing for when we change the showSubmitButton\n     * value\n     */\n    this.setShowSubmitButtonValue(this.authoringComponentContent.showSubmitButton);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Open the asset choose to select an image for the stamp\n   * @param index the index of the stamp\n   */\n  chooseStampImage(index) {\n\n    // generate the parameters\n    var params = {};\n    params.isPopup = true;\n    params.nodeId = this.nodeId;\n    params.componentId = this.componentId;\n    params.target = 'stamp';\n    params.targetObject = index;\n\n    // display the asset chooser\n    this.$rootScope.$broadcast('openAssetChooser', params);\n  }\n\n  /**\n   * Set the stamp image\n   * @param index the index of the stamp\n   * @param fileName the file name of the image\n   */\n  setStampImage(index, fileName) {\n    this.authoringComponentContent.stamps.Stamps[index] = fileName;\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      if (this.componentContent != null &&\n          this.componentContent.background != null) {\n\n        /*\n         * this component has a background so we will use it instead of\n         * the background from the connected\n         */\n        this.drawingTool.setBackgroundImage(this.componentContent.background);\n      }\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      // used to collect the objects from all the component states\n      let allObjects = [];\n\n      // the draw data from the first component state\n      let firstDrawData = {};\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n        if (componentState.componentType == 'Draw') {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            let drawData = studentData.drawData;\n\n            if (drawData != null) {\n\n              // convert the JSON string to a JSON object\n              let drawDataJSON = angular.fromJson(drawData);\n\n              if (drawDataJSON != null &&\n                drawDataJSON.canvas != null &&\n                drawDataJSON.canvas.objects != null) {\n\n                if (c == 0) {\n                  // remember the first draw data\n                  firstDrawData = drawDataJSON;\n                }\n\n                // append the objects\n                allObjects = allObjects.concat(drawDataJSON.canvas.objects);\n              }\n            }\n          }\n        } else if (componentState.componentType == 'Graph' ||\n            componentState.componentType == 'ConceptMap' ||\n            componentState.componentType == 'Embedded' ||\n            componentState.componentType == 'Label' ||\n            componentState.componentType == 'Table') {\n          let connectedComponent =\n            this.UtilService.getConnectedComponentByComponentState(this.componentContent, componentState);\n          if (connectedComponent.importWorkAsBackground === true) {\n            this.setComponentStateAsBackgroundImage(componentState);\n          }\n        }\n      }\n\n      if (allObjects != null) {\n\n        // create the draw data with all the objects\n        let drawData = firstDrawData;\n\n        if (drawData != null &&\n            drawData.canvas != null &&\n            drawData.canvas.objects != null) {\n\n          drawData.canvas.objects = allObjects;\n        }\n\n        // set the draw data JSON string into the component state\n        mergedComponentState.studentData = {};\n        mergedComponentState.studentData.drawData = angular.toJson(drawData);\n      }\n    }\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Create an image from a component state and set the image as the background.\n   * @param componentState A component state.\n   */\n  setComponentStateAsBackgroundImage(componentState) {\n    this.UtilService.generateImageFromComponentState(componentState).then((image) => {\n      this.drawingTool.setBackgroundImage(image.url);\n    });\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'importWork';\n          this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      delete connectedComponent.importWorkAsBackground;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n      this.authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * If the component type is a certain type, we will set the importWorkAsBackground\n   * field to true.\n   * @param connectedComponent The connected component object.\n   */\n  authoringSetImportWorkAsBackgroundIfApplicable(connectedComponent) {\n    let componentType = this.authoringGetConnectedComponentType(connectedComponent);\n    if (componentType == 'ConceptMap' ||\n        componentType == 'Embedded' ||\n        componentType == 'Graph' ||\n        componentType == 'Label' ||\n        componentType == 'Table') {\n      connectedComponent.importWorkAsBackground = true;\n    } else {\n      delete connectedComponent.importWorkAsBackground;\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The show JSON button was clicked to show or hide the JSON authoring\n   */\n  showJSONButtonClicked() {\n    // toggle the JSON authoring textarea\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n\n    if (this.jsonStringChanged && !this.showJSONAuthoring) {\n      /*\n       * the author has changed the JSON and has just closed the JSON\n       * authoring view so we will save the component\n       */\n      this.advancedAuthoringViewComponentChanged();\n\n      // scroll to the top of the component\n      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });\n\n      this.jsonStringChanged = false;\n    }\n  }\n\n  /**\n   * The author has changed the JSON manually in the advanced view\n   */\n  authoringJSONChanged() {\n    this.jsonStringChanged = true;\n  }\n\n  showCopyPublicNotebookItemButton() {\n    return this.ProjectService.isSpaceExists(\"public\");\n  }\n\n  copyPublicNotebookItemButtonClicked(event) {\n    this.$rootScope.$broadcast('openNotebook',\n        { nodeId: this.nodeId, componentId: this.componentId, insertMode: true, requester: this.nodeId + '-' + this.componentId, visibleSpace: \"public\" });\n  }\n\n  importWorkByStudentWorkId(studentWorkId) {\n    this.StudentDataService.getStudentWorkById(studentWorkId).then((componentState) => {\n      if (componentState != null) {\n        this.setStudentWork(componentState);\n        this.setParentStudentWorkIdToCurrentStudentWork(studentWorkId);\n        this.$rootScope.$broadcast('closeNotebook');\n      }\n    });\n  }\n\n  setParentStudentWorkIdToCurrentStudentWork(studentWorkId) {\n    this.parentStudentWorkIds = [studentWorkId];\n  }\n\n  /**\n   * The \"Import Work As Background\" checkbox was clicked.\n   * @param connectedComponent The connected component associated with the\n   * checkbox.\n   */\n  authoringImportWorkAsBackgroundClicked(connectedComponent) {\n    if (!connectedComponent.importWorkAsBackground) {\n      delete connectedComponent.importWorkAsBackground;\n    }\n    this.authoringViewComponentChanged();\n  }\n}\n\nDrawController.$inject = [\n  '$filter',\n  '$injector',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$scope',\n  '$timeout',\n  'AnnotationService',\n  'ConfigService',\n  'DrawService',\n  'NodeService',\n  'NotebookService',\n  'ProjectService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'];\n\nexport default DrawController;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/draw/drawService.es6 b/src/main/webapp/wise5/components/draw/drawService.es6
index 6b01945159..dc95ae7405 100644
--- a/src/main/webapp/wise5/components/draw/drawService.es6
+++ b/src/main/webapp/wise5/components/draw/drawService.es6
@@ -1,41 +1,23 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class DrawService extends NodeService {
+class DrawService extends ComponentService {
   constructor($filter,
       $q,
       StudentAssetService,
       StudentDataService,
       UtilService) {
-    super();
-    this.$filter = $filter;
+    super($filter, StudentDataService, UtilService);
     this.$q = $q;
     this.StudentAssetService = StudentAssetService;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-
-    this.$translate = this.$filter('translate');
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Draw"
-   */
   getComponentTypeLabel() {
     return this.$translate('draw.componentTypeLabel');
   }
 
-  /**
-   * Create a Draw component object
-   * @returns a new Draw component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'Draw';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     component.stamps = {};
     component.stamps.Stamps = [];
     component.tools = {};
@@ -57,20 +39,6 @@ class DrawService extends NodeService {
     return component;
   }
 
-  /**
-   * Copies an existing Draw component object
-   * @returns a copied Draw component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.stamps = componentToCopy.stamps;
-    component.stamps.Stamps = componentToCopy.stamps.Stamps;
-    return component;
-  }
-
   getStudentWorkJPEG(componentState) {
     if (componentState != null) {
       var studentData = componentState.studentData;
@@ -85,49 +53,6 @@ class DrawService extends NodeService {
     return null;
   };
 
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'Draw') {
-        // the other component is an Draw component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     let result = false;
 
@@ -214,42 +139,6 @@ class DrawService extends NodeService {
     return componentState;
   }
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
 
     if (componentState != null) {
diff --git a/src/main/webapp/wise5/components/draw/drawService.js b/src/main/webapp/wise5/components/draw/drawService.js
index ca40c503fb..7c0e298576 100644
--- a/src/main/webapp/wise5/components/draw/drawService.js
+++ b/src/main/webapp/wise5/components/draw/drawService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,51 +20,29 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var DrawService = function (_NodeService) {
-  _inherits(DrawService, _NodeService);
+var DrawService = function (_ComponentService) {
+  _inherits(DrawService, _ComponentService);
 
   function DrawService($filter, $q, StudentAssetService, StudentDataService, UtilService) {
     _classCallCheck(this, DrawService);
 
-    var _this = _possibleConstructorReturn(this, (DrawService.__proto__ || Object.getPrototypeOf(DrawService)).call(this));
+    var _this = _possibleConstructorReturn(this, (DrawService.__proto__ || Object.getPrototypeOf(DrawService)).call(this, $filter, StudentDataService, UtilService));
 
-    _this.$filter = $filter;
     _this.$q = $q;
     _this.StudentAssetService = StudentAssetService;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-
-    _this.$translate = _this.$filter('translate');
     return _this;
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Draw"
-   */
-
-
   _createClass(DrawService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('draw.componentTypeLabel');
     }
-
-    /**
-     * Create a Draw component object
-     * @returns a new Draw component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(DrawService.prototype.__proto__ || Object.getPrototypeOf(DrawService.prototype), 'createComponent', this).call(this);
       component.type = 'Draw';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       component.stamps = {};
       component.stamps.Stamps = [];
       component.tools = {};
@@ -83,23 +63,6 @@ var DrawService = function (_NodeService) {
       component.tools.delete = true;
       return component;
     }
-
-    /**
-     * Copies an existing Draw component object
-     * @returns a copied Draw component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.stamps = componentToCopy.stamps;
-      component.stamps.Stamps = componentToCopy.stamps.Stamps;
-      return component;
-    }
   }, {
     key: 'getStudentWorkJPEG',
     value: function getStudentWorkJPEG(componentState) {
@@ -115,56 +78,8 @@ var DrawService = function (_NodeService) {
       }
       return null;
     }
-  }, {
-    key: 'populateComponentState',
-
-
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'Draw') {
-          // the other component is an Draw component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       var result = false;
 
@@ -253,53 +168,6 @@ var DrawService = function (_NodeService) {
 
       return componentState;
     }
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-
-  }, {
-    key: 'componentHasWork',
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -388,7 +256,7 @@ var DrawService = function (_NodeService) {
   }]);
 
   return DrawService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 DrawService.$inject = ['$filter', '$q', 'StudentAssetService', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/draw/drawService.js.map b/src/main/webapp/wise5/components/draw/drawService.js.map
index a99038f344..44d0b2055e 100644
--- a/src/main/webapp/wise5/components/draw/drawService.js.map
+++ b/src/main/webapp/wise5/components/draw/drawService.js.map
@@ -1 +1 @@
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NodeService from '../../services/nodeService';\n\nclass DrawService extends NodeService {\n  constructor($filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Draw\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('draw.componentTypeLabel');\n  }\n\n  /**\n   * Create a Draw component object\n   * @returns a new Draw component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'Draw';\n    component.prompt = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.stamps = {};\n    component.stamps.Stamps = [];\n    component.tools = {};\n    component.tools.select = true;\n    component.tools.line = true;\n    component.tools.shape = true;\n    component.tools.freeHand = true;\n    component.tools.text = true;\n    component.tools.stamp = true;\n    component.tools.strokeColor = true;\n    component.tools.fillColor = true;\n    component.tools.clone = true;\n    component.tools.strokeWidth = true;\n    component.tools.sendBack = true;\n    component.tools.sendForward = true;\n    component.tools.undo = true;\n    component.tools.redo = true;\n    component.tools.delete = true;\n    return component;\n  }\n\n  /**\n   * Copies an existing Draw component object\n   * @returns a copied Draw component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.stamps = componentToCopy.stamps;\n    component.stamps.Stamps = componentToCopy.stamps.Stamps;\n    return component;\n  }\n\n  getStudentWorkJPEG(componentState) {\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null && studentData.drawData != null) {\n        var drawData = JSON.parse(studentData.drawData);\n        if (drawData != null && drawData.jpeg != null && drawData.jpeg != '') {\n          return drawData.jpeg;\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'Draw') {\n        // the other component is an Draw component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.drawData) {\n              // there is draw data so the component is completed\n              // TODO: check for empty drawing or drawing same as initial state\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData) {\n          if (studentData.drawData) {\n            // there is draw data so the component is completed\n            // TODO: check for empty drawing or drawing same as initial state\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Remove the background object from the draw data in the component state\n   * @param componentState the component state\n   * @returns the componentState\n   */\n  removeBackgroundFromComponentState(componentState) {\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the draw data string\n        var drawData = studentData.drawData;\n\n        if (drawData != null) {\n\n          // convert the draw data string to an object\n          var drawDataObject = angular.fromJson(drawData);\n\n          if (drawDataObject != null) {\n\n            // get the canvas value\n            var canvas = drawDataObject.canvas;\n\n            if (canvas != null) {\n\n              // remove the background image from the canvas\n              delete canvas.backgroundImage;\n\n              // convert the object back to a JSON string\n              var drawDataJSONString = angular.toJson(drawDataObject);\n\n              if (drawDataJSONString != null) {\n                // set the draw data JSON string back into the student data\n                studentData.drawData = drawDataJSONString;\n              }\n            }\n          }\n        }\n      }\n    };\n\n    return componentState;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the student draw data\n        let drawData = studentData.drawData;\n\n        // get the draw data as a JSON object\n        let drawDataJSON = angular.fromJson(drawData);\n\n        if (componentContent == null) {\n          // the component content was not provided\n\n          if (drawDataJSON != null &&\n            drawDataJSON.canvas != null &&\n            drawDataJSON.canvas.objects != null &&\n            drawDataJSON.canvas.objects.length > 0) {\n\n            return true;\n          }\n        } else {\n          // the component content was provided\n\n          let starterDrawData = componentContent.starterDrawData;\n\n          if (starterDrawData == null || starterDrawData == '') {\n            // there is no starter draw data\n\n            if (drawDataJSON != null &&\n              drawDataJSON.canvas != null &&\n              drawDataJSON.canvas.objects != null &&\n              drawDataJSON.canvas.objects.length > 0) {\n\n              return true;\n            }\n          } else {\n            /*\n             * there is starter draw data so we will compare it with\n             * the student draw data\n             */\n\n            if (drawData != null &&\n              drawData != '' &&\n              drawData !== starterDrawData) {\n              /*\n               * the student draw data is different than the\n               * starter draw data\n               */\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let canvas = angular.element('#drawingtool_' + componentState.nodeId + '_' + componentState.componentId + ' canvas');\n    if (canvas != null && canvas.length > 0) {\n      // get the top canvas\n      canvas = canvas[0];\n\n      // get the canvas as a base64 string\n      let img_b64 = canvas.toDataURL('image/png');\n\n      // get the image object\n      let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n      // add the image to the student assets\n      this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n        deferred.resolve(asset);\n      });\n    }\n    return deferred.promise;\n  }\n}\n\nDrawService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default DrawService;\n"]}
\ No newline at end of file
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ComponentService from '../componentService';\n\nclass DrawService extends ComponentService {\n  constructor($filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super($filter, StudentDataService, UtilService);\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('draw.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'Draw';\n    component.stamps = {};\n    component.stamps.Stamps = [];\n    component.tools = {};\n    component.tools.select = true;\n    component.tools.line = true;\n    component.tools.shape = true;\n    component.tools.freeHand = true;\n    component.tools.text = true;\n    component.tools.stamp = true;\n    component.tools.strokeColor = true;\n    component.tools.fillColor = true;\n    component.tools.clone = true;\n    component.tools.strokeWidth = true;\n    component.tools.sendBack = true;\n    component.tools.sendForward = true;\n    component.tools.undo = true;\n    component.tools.redo = true;\n    component.tools.delete = true;\n    return component;\n  }\n\n  getStudentWorkJPEG(componentState) {\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null && studentData.drawData != null) {\n        var drawData = JSON.parse(studentData.drawData);\n        if (drawData != null && drawData.jpeg != null && drawData.jpeg != '') {\n          return drawData.jpeg;\n        }\n      }\n    }\n    return null;\n  };\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.drawData) {\n              // there is draw data so the component is completed\n              // TODO: check for empty drawing or drawing same as initial state\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData) {\n          if (studentData.drawData) {\n            // there is draw data so the component is completed\n            // TODO: check for empty drawing or drawing same as initial state\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Remove the background object from the draw data in the component state\n   * @param componentState the component state\n   * @returns the componentState\n   */\n  removeBackgroundFromComponentState(componentState) {\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the draw data string\n        var drawData = studentData.drawData;\n\n        if (drawData != null) {\n\n          // convert the draw data string to an object\n          var drawDataObject = angular.fromJson(drawData);\n\n          if (drawDataObject != null) {\n\n            // get the canvas value\n            var canvas = drawDataObject.canvas;\n\n            if (canvas != null) {\n\n              // remove the background image from the canvas\n              delete canvas.backgroundImage;\n\n              // convert the object back to a JSON string\n              var drawDataJSONString = angular.toJson(drawDataObject);\n\n              if (drawDataJSONString != null) {\n                // set the draw data JSON string back into the student data\n                studentData.drawData = drawDataJSONString;\n              }\n            }\n          }\n        }\n      }\n    };\n\n    return componentState;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the student draw data\n        let drawData = studentData.drawData;\n\n        // get the draw data as a JSON object\n        let drawDataJSON = angular.fromJson(drawData);\n\n        if (componentContent == null) {\n          // the component content was not provided\n\n          if (drawDataJSON != null &&\n            drawDataJSON.canvas != null &&\n            drawDataJSON.canvas.objects != null &&\n            drawDataJSON.canvas.objects.length > 0) {\n\n            return true;\n          }\n        } else {\n          // the component content was provided\n\n          let starterDrawData = componentContent.starterDrawData;\n\n          if (starterDrawData == null || starterDrawData == '') {\n            // there is no starter draw data\n\n            if (drawDataJSON != null &&\n              drawDataJSON.canvas != null &&\n              drawDataJSON.canvas.objects != null &&\n              drawDataJSON.canvas.objects.length > 0) {\n\n              return true;\n            }\n          } else {\n            /*\n             * there is starter draw data so we will compare it with\n             * the student draw data\n             */\n\n            if (drawData != null &&\n              drawData != '' &&\n              drawData !== starterDrawData) {\n              /*\n               * the student draw data is different than the\n               * starter draw data\n               */\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let canvas = angular.element('#drawingtool_' + componentState.nodeId + '_' + componentState.componentId + ' canvas');\n    if (canvas != null && canvas.length > 0) {\n      // get the top canvas\n      canvas = canvas[0];\n\n      // get the canvas as a base64 string\n      let img_b64 = canvas.toDataURL('image/png');\n\n      // get the image object\n      let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n      // add the image to the student assets\n      this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n        deferred.resolve(asset);\n      });\n    }\n    return deferred.promise;\n  }\n}\n\nDrawService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default DrawService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/embedded/embeddedService.es6 b/src/main/webapp/wise5/components/embedded/embeddedService.es6
index c91d6e48e8..c6b34361f6 100644
--- a/src/main/webapp/wise5/components/embedded/embeddedService.es6
+++ b/src/main/webapp/wise5/components/embedded/embeddedService.es6
@@ -1,63 +1,29 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 import html2canvas from 'html2canvas';
 
-class EmbeddedService extends NodeService {
+class EmbeddedService extends ComponentService {
   constructor(
       $filter,
       $q,
       StudentAssetService,
+      StudentDataService,
       UtilService) {
-    super();
-    this.$filter = $filter;
+    super($filter, StudentDataService, UtilService);
     this.$q = $q;
     this.StudentAssetService = StudentAssetService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Embedded"
-   */
   getComponentTypeLabel() {
     return this.$translate('embedded.componentTypeLabel');
   }
 
-  /**
-   * Create an Embedded component object
-   * @returns a new Embedded component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'Embedded';
     component.url = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
-    return component;
-  }
-
-  /**
-   * Copies an existing Embedded component object
-   * @returns a copied Embedded component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.url = componentToCopy.url;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
     return component;
   }
 
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents) {
     var result = false;
     var isCompletedFieldInComponentState = false;
@@ -104,42 +70,10 @@ class EmbeddedService extends NodeService {
     return result;
   };
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
   componentHasWork(component) {
     return false;
   }
 
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
     if (componentState != null) {
       let studentData = componentState.studentData;
@@ -182,6 +116,7 @@ EmbeddedService.$inject = [
   '$filter',
   '$q',
   'StudentAssetService',
+  'StudentDataService',
   'UtilService'
 ];
 
diff --git a/src/main/webapp/wise5/components/embedded/embeddedService.js b/src/main/webapp/wise5/components/embedded/embeddedService.js
index 5540bcca6e..54aca5fccd 100644
--- a/src/main/webapp/wise5/components/embedded/embeddedService.js
+++ b/src/main/webapp/wise5/components/embedded/embeddedService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 var _html2canvas = require('html2canvas');
 
@@ -22,76 +24,32 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var EmbeddedService = function (_NodeService) {
-  _inherits(EmbeddedService, _NodeService);
+var EmbeddedService = function (_ComponentService) {
+  _inherits(EmbeddedService, _ComponentService);
 
-  function EmbeddedService($filter, $q, StudentAssetService, UtilService) {
+  function EmbeddedService($filter, $q, StudentAssetService, StudentDataService, UtilService) {
     _classCallCheck(this, EmbeddedService);
 
-    var _this = _possibleConstructorReturn(this, (EmbeddedService.__proto__ || Object.getPrototypeOf(EmbeddedService)).call(this));
+    var _this = _possibleConstructorReturn(this, (EmbeddedService.__proto__ || Object.getPrototypeOf(EmbeddedService)).call(this, $filter, StudentDataService, UtilService));
 
-    _this.$filter = $filter;
     _this.$q = $q;
     _this.StudentAssetService = StudentAssetService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
     return _this;
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Embedded"
-   */
-
-
   _createClass(EmbeddedService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('embedded.componentTypeLabel');
     }
-
-    /**
-     * Create an Embedded component object
-     * @returns a new Embedded component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(EmbeddedService.prototype.__proto__ || Object.getPrototypeOf(EmbeddedService.prototype), 'createComponent', this).call(this);
       component.type = 'Embedded';
       component.url = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       return component;
     }
-
-    /**
-     * Copies an existing Embedded component object
-     * @returns a copied Embedded component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.url = componentToCopy.url;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      return component;
-    }
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @returns whether the component was completed
-     */
-
   }, {
     key: 'isCompleted',
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents) {
@@ -183,51 +141,9 @@ var EmbeddedService = function (_NodeService) {
     }
   }, {
     key: 'componentHasWork',
-
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
     value: function componentHasWork(component) {
       return false;
     }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -274,9 +190,9 @@ var EmbeddedService = function (_NodeService) {
   }]);
 
   return EmbeddedService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
-EmbeddedService.$inject = ['$filter', '$q', 'StudentAssetService', 'UtilService'];
+EmbeddedService.$inject = ['$filter', '$q', 'StudentAssetService', 'StudentDataService', 'UtilService'];
 
 exports.default = EmbeddedService;
 //# sourceMappingURL=embeddedService.js.map
diff --git a/src/main/webapp/wise5/components/embedded/embeddedService.js.map b/src/main/webapp/wise5/components/embedded/embeddedService.js.map
index 6ed8791a19..283af3dbaf 100644
--- a/src/main/webapp/wise5/components/embedded/embeddedService.js.map
+++ b/src/main/webapp/wise5/components/embedded/embeddedService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["embeddedService.es6"],"names":["EmbeddedService","$filter","$q","StudentAssetService","UtilService","$translate","component","id","generateKey","type","url","showSaveButton","showSubmitButton","componentToCopy","createComponent","componentStates","componentEvents","nodeEvents","result","isCompletedFieldInComponentState","componentState","studentData","isCompleted","event","componentContent","deferred","defer","iframe","$","componentId","length","modelElement","contents","find","then","canvas","img_b64","toDataURL","imageObject","getImageObjectFromBase64String","uploadAsset","asset","resolve","promise","$inject"],"mappings":";;;;;;;;AAAA;;;;AACA;;;;;;;;;;;;IAEMA,e;;;AACJ,2BACIC,OADJ,EAEIC,EAFJ,EAGIC,mBAHJ,EAIIC,WAJJ,EAIiB;AAAA;;AAAA;;AAEf,UAAKH,OAAL,GAAeA,OAAf;AACA,UAAKC,EAAL,GAAUA,EAAV;AACA,UAAKC,mBAAL,GAA2BA,mBAA3B;AACA,UAAKC,WAAL,GAAmBA,WAAnB;AACA,UAAKC,UAAL,GAAkB,MAAKJ,OAAL,CAAa,WAAb,CAAlB;AANe;AAOhB;;AAED;;;;;;;;;4CAKwB;AACtB,aAAO,KAAKI,UAAL,CAAgB,6BAAhB,CAAP;AACD;;AAED;;;;;;;sCAIkB;AAChB,UAAIC,YAAY,EAAhB;AACAA,gBAAUC,EAAV,GAAe,KAAKH,WAAL,CAAiBI,WAAjB,EAAf;AACAF,gBAAUG,IAAV,GAAiB,UAAjB;AACAH,gBAAUI,GAAV,GAAgB,EAAhB;AACAJ,gBAAUK,cAAV,GAA2B,KAA3B;AACAL,gBAAUM,gBAAV,GAA6B,KAA7B;AACA,aAAON,SAAP;AACD;;AAED;;;;;;;kCAIcO,e,EAAiB;AAC7B,UAAIP,YAAY,KAAKQ,eAAL,EAAhB;AACAR,gBAAUI,GAAV,GAAgBG,gBAAgBH,GAAhC;AACAJ,gBAAUK,cAAV,GAA2BE,gBAAgBF,cAA3C;AACAL,gBAAUM,gBAAV,GAA6BC,gBAAgBD,gBAA7C;AACA,aAAON,SAAP;AACD;;AAED;;;;;;;;;;;gCAQYA,S,EAAWS,e,EAAiBC,e,EAAiBC,U,EAAY;AACnE,UAAIC,SAAS,KAAb;AACA,UAAIC,mCAAmC,KAAvC;AACA,UAAIJ,mBAAmB,IAAvB,EAA6B;AAAA;AAAA;AAAA;;AAAA;AAC3B,+BAA2BA,eAA3B,8HAA4C;AAAA,gBAAnCK,cAAmC;;AAC1C,gBAAIA,kBAAkB,IAAtB,EAA4B;AAC1B,kBAAIC,cAAcD,eAAeC,WAAjC;AACA,kBAAIA,eAAe,IAAnB,EAAyB;AACvB,oBAAIA,YAAYC,WAAZ,IAA2B,IAA/B,EAAqC;AACnC;;;;AAIAH,qDAAmC,IAAnC;;AAEA,sBAAIE,YAAYC,WAAZ,KAA4B,IAAhC,EAAsC;AACpC;;;;AAIA,2BAAO,IAAP;AACD;AACF;AACF;AACF;AACF;AAtB0B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAuB5B;;AAED,UAAIH,oCAAoC,KAAxC,EAA+C;AAC7C;;;;;AAKA,YAAIF,cAAc,IAAlB,EAAwB;AAAA;AAAA;AAAA;;AAAA;AACtB,kCAAkBA,UAAlB,mIAA8B;AAAA,kBAArBM,KAAqB;;AAC5B,kBAAIA,SAAS,IAAT,IAAiBA,MAAMA,KAAN,KAAgB,aAArC,EAAoD;AAClDL,yBAAS,IAAT;AACA;AACD;AACF;AANqB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAOvB;AACF;AACD,aAAOA,MAAP;AACD;;;;;AAED;;;;;;;qCAOiBZ,S,EAAW;AAC1B,aAAO,KAAP;AACD;;AAED;;;;;;;8CAI0B;AACxB,aAAO,IAAP;AACD;;AAED;;;;;;;gDAI4B;AAC1B,aAAO,IAAP;AACD;;AAED;;;;;;;;;;;;iDAS6Bc,c,EAAgBI,gB,EAAkB;AAC7D,UAAIJ,kBAAkB,IAAtB,EAA4B;AAC1B,YAAIC,cAAcD,eAAeC,WAAjC;AACA,YAAIA,eAAe,IAAnB,EAAyB;AACvB,iBAAO,IAAP;AACD;AACF;AACD,aAAO,KAAP;AACD;;AAED;;;;;;;;;4DAMwCD,c,EAAgB;AAAA;;AACtD,UAAIK,WAAW,KAAKvB,EAAL,CAAQwB,KAAR,EAAf;AACA,UAAIC,SAASC,EAAE,mBAAmBR,eAAeS,WAApC,CAAb;AACA,UAAIF,UAAU,IAAV,IAAkBA,OAAOG,MAAP,GAAgB,CAAtC,EAAyC;AACvC,YAAIC,eAAeJ,OAAOK,QAAP,GAAkBC,IAAlB,CAAuB,MAAvB,CAAnB;AACA,YAAIF,gBAAgB,IAAhB,IAAwBA,aAAaD,MAAb,GAAsB,CAAlD,EAAqD;AACnDC,yBAAeA,aAAa,CAAb,CAAf;AACA;AACA,qCAAYA,YAAZ,EAA0BG,IAA1B,CAA+B,UAACC,MAAD,EAAY;AACzC,gBAAIC,UAAUD,OAAOE,SAAP,CAAiB,WAAjB,CAAd;AACA,gBAAIC,cAAc,OAAKlC,WAAL,CAAiBmC,8BAAjB,CAAgDH,OAAhD,CAAlB;AACA;AACA,mBAAKjC,mBAAL,CAAyBqC,WAAzB,CAAqCF,WAArC,EAAkDJ,IAAlD,CAAuD,UAACO,KAAD,EAAW;AAChEhB,uBAASiB,OAAT,CAAiBD,KAAjB;AACD,aAFD;AAGD,WAPD;AAQD;AACF;AACD,aAAOhB,SAASkB,OAAhB;AACD;;;;;;AAGH3C,gBAAgB4C,OAAhB,GAA0B,CACxB,SADwB,EAExB,IAFwB,EAGxB,qBAHwB,EAIxB,aAJwB,CAA1B;;kBAOe5C,e","file":"embeddedService.js","sourcesContent":["import NodeService from '../../services/nodeService';\nimport html2canvas from 'html2canvas';\n\nclass EmbeddedService extends NodeService {\n  constructor(\n      $filter,\n      $q,\n      StudentAssetService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Embedded\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('embedded.componentTypeLabel');\n  }\n\n  /**\n   * Create an Embedded component object\n   * @returns a new Embedded component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'Embedded';\n    component.url = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    return component;\n  }\n\n  /**\n   * Copies an existing Embedded component object\n   * @returns a copied Embedded component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.url = componentToCopy.url;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    return component;\n  }\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents) {\n    var result = false;\n    var isCompletedFieldInComponentState = false;\n    if (componentStates != null) {\n      for (var componentState of componentStates) {\n        if (componentState != null) {\n          var studentData = componentState.studentData;\n          if (studentData != null) {\n            if (studentData.isCompleted != null) {\n              /*\n               * the model has set the isCompleted field in the\n               * student data\n               */\n              isCompletedFieldInComponentState = true;\n\n              if (studentData.isCompleted === true) {\n                /*\n                 * the model has set the isCompleted field to true\n                 * which means the student has completed the component\n                 */\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n\n    if (isCompletedFieldInComponentState == false) {\n      /*\n       * the isCompleted field was not set into the component state so\n       * we will look for events to determine isCompleted\n       */\n\n      if (nodeEvents != null) {\n        for (var event of nodeEvents) {\n          if (event != null && event.event === 'nodeEntered') {\n            result = true;\n            break;\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return false;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let iframe = $('#componentApp_' + componentState.componentId);\n    if (iframe != null && iframe.length > 0) {\n      let modelElement = iframe.contents().find('html');\n      if (modelElement != null && modelElement.length > 0) {\n        modelElement = modelElement[0];\n        // convert the model element to a canvas element\n        html2canvas(modelElement).then((canvas) => {\n          let img_b64 = canvas.toDataURL('image/png');\n          let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n          // add the image to the student assets\n          this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n            deferred.resolve(asset);\n          });\n        });\n      }\n    }\n    return deferred.promise;\n  }\n}\n\nEmbeddedService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'UtilService'\n];\n\nexport default EmbeddedService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["embeddedService.es6"],"names":["EmbeddedService","$filter","$q","StudentAssetService","StudentDataService","UtilService","$translate","component","type","url","componentStates","componentEvents","nodeEvents","result","isCompletedFieldInComponentState","componentState","studentData","isCompleted","event","componentContent","deferred","defer","iframe","$","componentId","length","modelElement","contents","find","then","canvas","img_b64","toDataURL","imageObject","getImageObjectFromBase64String","uploadAsset","asset","resolve","promise","$inject"],"mappings":";;;;;;;;;;AAAA;;;;AACA;;;;;;;;;;;;IAEMA,e;;;AACJ,2BACIC,OADJ,EAEIC,EAFJ,EAGIC,mBAHJ,EAIIC,kBAJJ,EAKIC,WALJ,EAKiB;AAAA;;AAAA,kIACTJ,OADS,EACAG,kBADA,EACoBC,WADpB;;AAEf,UAAKH,EAAL,GAAUA,EAAV;AACA,UAAKC,mBAAL,GAA2BA,mBAA3B;AAHe;AAIhB;;;;4CAEuB;AACtB,aAAO,KAAKG,UAAL,CAAgB,6BAAhB,CAAP;AACD;;;sCAEiB;AAChB,UAAMC,6IAAN;AACAA,gBAAUC,IAAV,GAAiB,UAAjB;AACAD,gBAAUE,GAAV,GAAgB,EAAhB;AACA,aAAOF,SAAP;AACD;;;gCAEWA,S,EAAWG,e,EAAiBC,e,EAAiBC,U,EAAY;AACnE,UAAIC,SAAS,KAAb;AACA,UAAIC,mCAAmC,KAAvC;AACA,UAAIJ,mBAAmB,IAAvB,EAA6B;AAAA;AAAA;AAAA;;AAAA;AAC3B,+BAA2BA,eAA3B,8HAA4C;AAAA,gBAAnCK,cAAmC;;AAC1C,gBAAIA,kBAAkB,IAAtB,EAA4B;AAC1B,kBAAIC,cAAcD,eAAeC,WAAjC;AACA,kBAAIA,eAAe,IAAnB,EAAyB;AACvB,oBAAIA,YAAYC,WAAZ,IAA2B,IAA/B,EAAqC;AACnC;;;;AAIAH,qDAAmC,IAAnC;;AAEA,sBAAIE,YAAYC,WAAZ,KAA4B,IAAhC,EAAsC;AACpC;;;;AAIA,2BAAO,IAAP;AACD;AACF;AACF;AACF;AACF;AAtB0B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAuB5B;;AAED,UAAIH,oCAAoC,KAAxC,EAA+C;AAC7C;;;;;AAKA,YAAIF,cAAc,IAAlB,EAAwB;AAAA;AAAA;AAAA;;AAAA;AACtB,kCAAkBA,UAAlB,mIAA8B;AAAA,kBAArBM,KAAqB;;AAC5B,kBAAIA,SAAS,IAAT,IAAiBA,MAAMA,KAAN,KAAgB,aAArC,EAAoD;AAClDL,yBAAS,IAAT;AACA;AACD;AACF;AANqB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAOvB;AACF;AACD,aAAOA,MAAP;AACD;;;qCAEgBN,S,EAAW;AAC1B,aAAO,KAAP;AACD;;;iDAE4BQ,c,EAAgBI,gB,EAAkB;AAC7D,UAAIJ,kBAAkB,IAAtB,EAA4B;AAC1B,YAAIC,cAAcD,eAAeC,WAAjC;AACA,YAAIA,eAAe,IAAnB,EAAyB;AACvB,iBAAO,IAAP;AACD;AACF;AACD,aAAO,KAAP;AACD;;AAED;;;;;;;;;4DAMwCD,c,EAAgB;AAAA;;AACtD,UAAIK,WAAW,KAAKlB,EAAL,CAAQmB,KAAR,EAAf;AACA,UAAIC,SAASC,EAAE,mBAAmBR,eAAeS,WAApC,CAAb;AACA,UAAIF,UAAU,IAAV,IAAkBA,OAAOG,MAAP,GAAgB,CAAtC,EAAyC;AACvC,YAAIC,eAAeJ,OAAOK,QAAP,GAAkBC,IAAlB,CAAuB,MAAvB,CAAnB;AACA,YAAIF,gBAAgB,IAAhB,IAAwBA,aAAaD,MAAb,GAAsB,CAAlD,EAAqD;AACnDC,yBAAeA,aAAa,CAAb,CAAf;AACA;AACA,qCAAYA,YAAZ,EAA0BG,IAA1B,CAA+B,UAACC,MAAD,EAAY;AACzC,gBAAIC,UAAUD,OAAOE,SAAP,CAAiB,WAAjB,CAAd;AACA,gBAAIC,cAAc,OAAK5B,WAAL,CAAiB6B,8BAAjB,CAAgDH,OAAhD,CAAlB;AACA;AACA,mBAAK5B,mBAAL,CAAyBgC,WAAzB,CAAqCF,WAArC,EAAkDJ,IAAlD,CAAuD,UAACO,KAAD,EAAW;AAChEhB,uBAASiB,OAAT,CAAiBD,KAAjB;AACD,aAFD;AAGD,WAPD;AAQD;AACF;AACD,aAAOhB,SAASkB,OAAhB;AACD;;;;;;AAGHtC,gBAAgBuC,OAAhB,GAA0B,CACxB,SADwB,EAExB,IAFwB,EAGxB,qBAHwB,EAIxB,oBAJwB,EAKxB,aALwB,CAA1B;;kBAQevC,e","file":"embeddedService.js","sourcesContent":["import ComponentService from '../componentService';\nimport html2canvas from 'html2canvas';\n\nclass EmbeddedService extends ComponentService {\n  constructor(\n      $filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super($filter, StudentDataService, UtilService);\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('embedded.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'Embedded';\n    component.url = '';\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents) {\n    var result = false;\n    var isCompletedFieldInComponentState = false;\n    if (componentStates != null) {\n      for (var componentState of componentStates) {\n        if (componentState != null) {\n          var studentData = componentState.studentData;\n          if (studentData != null) {\n            if (studentData.isCompleted != null) {\n              /*\n               * the model has set the isCompleted field in the\n               * student data\n               */\n              isCompletedFieldInComponentState = true;\n\n              if (studentData.isCompleted === true) {\n                /*\n                 * the model has set the isCompleted field to true\n                 * which means the student has completed the component\n                 */\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n\n    if (isCompletedFieldInComponentState == false) {\n      /*\n       * the isCompleted field was not set into the component state so\n       * we will look for events to determine isCompleted\n       */\n\n      if (nodeEvents != null) {\n        for (var event of nodeEvents) {\n          if (event != null && event.event === 'nodeEntered') {\n            result = true;\n            break;\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n  componentHasWork(component) {\n    return false;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let iframe = $('#componentApp_' + componentState.componentId);\n    if (iframe != null && iframe.length > 0) {\n      let modelElement = iframe.contents().find('html');\n      if (modelElement != null && modelElement.length > 0) {\n        modelElement = modelElement[0];\n        // convert the model element to a canvas element\n        html2canvas(modelElement).then((canvas) => {\n          let img_b64 = canvas.toDataURL('image/png');\n          let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n          // add the image to the student assets\n          this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n            deferred.resolve(asset);\n          });\n        });\n      }\n    }\n    return deferred.promise;\n  }\n}\n\nEmbeddedService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default EmbeddedService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/graph/graphService.es6 b/src/main/webapp/wise5/components/graph/graphService.es6
index 7daadf9740..5f4b637381 100644
--- a/src/main/webapp/wise5/components/graph/graphService.es6
+++ b/src/main/webapp/wise5/components/graph/graphService.es6
@@ -1,26 +1,17 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 import html2canvas from 'html2canvas';
 
-class GraphService extends NodeService {
+class GraphService extends ComponentService {
   constructor($filter,
       $q,
       StudentAssetService,
       StudentDataService,
       UtilService) {
-    super();
-    this.$filter = $filter;
+    super($filter, StudentDataService, UtilService);
     this.$q = $q;
     this.StudentAssetService = StudentAssetService;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Graph"
-   */
   getComponentTypeLabel() {
     return this.$translate('graph.componentTypeLabel');
   }
@@ -30,13 +21,8 @@ class GraphService extends NodeService {
    * @returns a new Graph component object
    */
   createComponent() {
-
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'Graph';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     component.title = '';
     component.width = 800;
     component.height = 500;
@@ -84,56 +70,6 @@ class GraphService extends NodeService {
     return component;
   }
 
-  /**
-   * Copies an existing Graph component object
-   * @returns a copied Graph component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.title = componentToCopy.title;
-    component.xAxis = componentToCopy.xAxis;
-    component.yAxis = componentToCopy.yAxis;
-    component.series = componentToCopy.series;
-    return component;
-  }
-
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'Graph') {
-        // the other component is an Graph component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
   /**
    * Code extracted from https://github.com/streamlinesocial/highcharts-regression
    * Loop through all the series that are passed in and find the ones that we
@@ -725,15 +661,6 @@ class GraphService extends NodeService {
     return  1 - ( SSYY / SSE)  ;
   }
 
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     let result = false;
 
@@ -871,42 +798,6 @@ class GraphService extends NodeService {
     return result;
   }
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
     let hasStudentWork = false;
 
diff --git a/src/main/webapp/wise5/components/graph/graphService.js b/src/main/webapp/wise5/components/graph/graphService.js
index e079304df5..c251891607 100644
--- a/src/main/webapp/wise5/components/graph/graphService.js
+++ b/src/main/webapp/wise5/components/graph/graphService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 var _html2canvas = require('html2canvas');
 
@@ -22,30 +24,19 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var GraphService = function (_NodeService) {
-  _inherits(GraphService, _NodeService);
+var GraphService = function (_ComponentService) {
+  _inherits(GraphService, _ComponentService);
 
   function GraphService($filter, $q, StudentAssetService, StudentDataService, UtilService) {
     _classCallCheck(this, GraphService);
 
-    var _this = _possibleConstructorReturn(this, (GraphService.__proto__ || Object.getPrototypeOf(GraphService)).call(this));
+    var _this = _possibleConstructorReturn(this, (GraphService.__proto__ || Object.getPrototypeOf(GraphService)).call(this, $filter, StudentDataService, UtilService));
 
-    _this.$filter = $filter;
     _this.$q = $q;
     _this.StudentAssetService = StudentAssetService;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
     return _this;
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Graph"
-   */
-
-
   _createClass(GraphService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
@@ -60,13 +51,8 @@ var GraphService = function (_NodeService) {
   }, {
     key: 'createComponent',
     value: function createComponent() {
-
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(GraphService.prototype.__proto__ || Object.getPrototypeOf(GraphService.prototype), 'createComponent', this).call(this);
       component.type = 'Graph';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       component.title = '';
       component.width = 800;
       component.height = 500;
@@ -112,65 +98,6 @@ var GraphService = function (_NodeService) {
       return component;
     }
 
-    /**
-     * Copies an existing Graph component object
-     * @returns a copied Graph component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.title = componentToCopy.title;
-      component.xAxis = componentToCopy.xAxis;
-      component.yAxis = componentToCopy.yAxis;
-      component.series = componentToCopy.series;
-      return component;
-    }
-
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-
-  }, {
-    key: 'populateComponentState',
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'Graph') {
-          // the other component is an Graph component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
-  }, {
-    key: 'generateRegressionSeries',
-
-
     /**
      * Code extracted from https://github.com/streamlinesocial/highcharts-regression
      * Loop through all the series that are passed in and find the ones that we
@@ -179,6 +106,9 @@ var GraphService = function (_NodeService) {
      * @param series an array of series
      * @return an array of regression series
      */
+
+  }, {
+    key: 'generateRegressionSeries',
     value: function generateRegressionSeries(series) {
       var regressionSeries = [];
       var i = 0;
@@ -814,17 +744,6 @@ var GraphService = function (_NodeService) {
       }
       return 1 - SSYY / SSE;
     }
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
-
   }, {
     key: 'isCompleted',
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
@@ -994,53 +913,6 @@ var GraphService = function (_NodeService) {
 
       return result;
     }
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-
-  }, {
-    key: 'componentHasWork',
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -1295,7 +1167,7 @@ var GraphService = function (_NodeService) {
   }]);
 
   return GraphService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 GraphService.$inject = ['$filter', '$q', 'StudentAssetService', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/graph/graphService.js.map b/src/main/webapp/wise5/components/graph/graphService.js.map
index 76e9d8bdf5..9fca3202a2 100644
--- a/src/main/webapp/wise5/components/graph/graphService.js.map
+++ b/src/main/webapp/wise5/components/graph/graphService.js.map
@@ -1 +1 @@
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NodeService from '../../services/nodeService';\nimport html2canvas from 'html2canvas';\n\nclass GraphService extends NodeService {\n  constructor($filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Graph\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('graph.componentTypeLabel');\n  }\n\n  /**\n   * Create a Graph component object\n   * @returns a new Graph component object\n   */\n  createComponent() {\n\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'Graph';\n    component.prompt = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.title = '';\n    component.width = 800;\n    component.height = 500;\n    component.enableTrials = false;\n    component.canCreateNewTrials = false;\n    component.canDeleteTrials = false;\n    component.hideAllTrialsOnNewTrial = false;\n    component.canStudentHideSeriesOnLegendClick = false;\n    component.roundValuesTo = 'integer';\n    component.graphType = 'line';\n    component.xAxis = {\n      title: {\n        text: this.$translate('graph.timeSeconds')\n      },\n      min: 0,\n      max: 100,\n      units: this.$translate('graph.secondsUnit'),\n      locked: true,\n      type: 'limits'\n    };\n    component.yAxis = {\n      title: {\n        text: this.$translate('graph.positionMeters')\n      },\n      min: 0,\n      max: 100,\n      units: this.$translate('graph.metersUnit'),\n      locked: true\n    };\n    component.series = [\n      {\n        name: this.$translate('graph.prediction'),\n        data: [],\n        color: 'blue',\n        dashStyle: 'Solid',\n        marker: {\n          symbol: 'circle'\n        },\n        regression: false,\n        regressionSettings: {},\n        canEdit: true\n      }\n    ];\n\n    return component;\n  }\n\n  /**\n   * Copies an existing Graph component object\n   * @returns a copied Graph component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.title = componentToCopy.title;\n    component.xAxis = componentToCopy.xAxis;\n    component.yAxis = componentToCopy.yAxis;\n    component.series = componentToCopy.series;\n    return component;\n  }\n\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'Graph') {\n        // the other component is an Graph component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Code extracted from https://github.com/streamlinesocial/highcharts-regression\n   * Loop through all the series that are passed in and find the ones that we\n   * need to generate a regression series for. Return the regression series\n   * that are generated in an array.\n   * @param series an array of series\n   * @return an array of regression series\n   */\n  generateRegressionSeries(series) {\n    var regressionSeries = [];\n    var i = 0 ;\n    for (i = 0 ; i < series.length ; i++){\n      var s = series[i];\n      if ( s.regression ) {\n        s.regressionSettings =  s.regressionSettings || {} ;\n        var regressionType = s.regressionSettings.type || \"linear\" ;\n        var regression;\n\n        var color = s.color;\n\n        if (s.regressionSettings.color != null) {\n          color = s.regressionSettings.color;\n        }\n\n        var extraSerie = {\n          data:[],\n          color: color ,\n          yAxis: s.yAxis ,\n          lineWidth: 2,\n          marker: {enabled: false} ,\n          isRegressionLine: true,\n          name: s.regressionSettings.label || \"Equation: %eq\"\n        };\n\n\n        extraSerie.type = \"spline\";\n\n        if (regressionType == \"linear\") {\n          regression = this._linear(s.data, s.regressionSettings) ;\n          extraSerie.type = \"line\";\n        }else if (regressionType == \"exponential\") {\n          regression = this._exponential(s.data, s.regressionSettings) ;\n        }else if (regressionType == \"polynomial\"){\n          regression = this._polynomial(s.data, 2, s.regressionSettings) ;\n        }else if (regressionType == \"logarithmic\"){\n          regression = this._logarithmic(s.data, s.regressionSettings) ;\n        }else if (regressionType == \"loess\"){\n          var loessSmooth = s.regressionSettings.loessSmooth || 25\n          regression = this._loess(s.data, loessSmooth/100) ;\n        }else {\n          console.error(\"Invalid regression type: \" , regressionType) ;\n          break;\n        }\n\n        regression.rSquared =  this.coefficientOfDetermination(s.data, regression.points).toFixed(2);\n        regression.rValue = Math.sqrt(regression.rSquared,2).toFixed(2) ;\n        extraSerie.data = regression.points ;\n        extraSerie.name = extraSerie.name.replace(\"%r2\",regression.rSquared);\n        extraSerie.name = extraSerie.name.replace(\"%r\",regression.rValue);\n        extraSerie.name = extraSerie.name.replace(\"%eq\",regression.string);\n\n        extraSerie.regressionOutputs = regression ;\n\n        regressionSeries.push(extraSerie);\n      }\n    }\n\n    return regressionSeries;\n  };\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  _exponential(data, regressionSettings) {\n    var sum = [0, 0, 0, 0, 0, 0], n = 0, results = [];\n\n    for (len = data.length; n < len; n++) {\n      if (data[n]['x']) {\n        data[n][0] = data[n]['x'];\n        data[n][1] = data[n]['y'];\n      }\n      if (data[n][1]) {\n        sum[0] += data[n][0]; // X\n        sum[1] += data[n][1]; // Y\n        sum[2] += data[n][0] * data[n][0] * data[n][1]; // XXY\n        sum[3] += data[n][1] * Math.log(data[n][1]); // Y Log Y\n        sum[4] += data[n][0] * data[n][1] * Math.log(data[n][1]); //YY Log Y\n        sum[5] += data[n][0] * data[n][1]; //XY\n      }\n    }\n\n    var denominator = (sum[1] * sum[2] - sum[5] * sum[5]);\n    var A = Math.pow(Math.E, (sum[2] * sum[3] - sum[5] * sum[4]) / denominator);\n    var B = (sum[1] * sum[4] - sum[5] * sum[3]) / denominator;\n\n    if(regressionSettings != null &&\n      regressionSettings.xMin != null &&\n      regressionSettings.xMax != null &&\n      regressionSettings.numberOfPoints != null) {\n\n      //regression settings have been provided\n\n      /*\n       * get the xMin and xMax so we know over what range to plot\n       * regression points for\n       */\n      var xMin = regressionSettings.xMin;\n      var xMax = regressionSettings.xMax;\n\n      //get the number of points that should be plotted on the regression line\n      var numberOfPoints = regressionSettings.numberOfPoints;\n\n      //get the distance between the xMin and xMax\n      var xSpan = xMax - xMin;\n\n      //calculate the points on the regression line\n      for (var i = 0; i < numberOfPoints; i++) {\n        var x = xMin + xSpan * (i / numberOfPoints);\n\n        var coordinate = [x, A * Math.pow(Math.E, B * x)];\n        results.push(coordinate);\n      }\n    } else {\n      /*\n       * regression settings have not been provided so we will use the default\n       * x values for the regression points\n       */\n      for (var i = 0, len = data.length; i < len; i++) {\n        var coordinate = [data[i][0], A * Math.pow(Math.E, B * data[i][0])];\n        results.push(coordinate);\n      }\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ' + Math.round(A*100) / 100 + 'e^(' + Math.round(B*100) / 100 + 'x)';\n\n    return {equation: [A, B], points: results, string: string};\n  }\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   * Human readable formulas:\n   *\n   *        N * Σ(XY) - Σ(X)\n   * intercept = ---------------------\n   *        N * Σ(X^2) - Σ(X)^2\n   *\n   * correlation = N * Σ(XY) - Σ(X) * Σ (Y) / √ (  N * Σ(X^2) - Σ(X) ) * ( N * Σ(Y^2) - Σ(Y)^2 ) ) )\n   *\n   */\n  _linear(data, regressionSettings) {\n    var sum = [0, 0, 0, 0, 0], n = 0, results = [], N = data.length;\n\n    for (; n < data.length; n++) {\n      if (data[n]['x']) {\n        data[n][0] = data[n]['x'];\n        data[n][1] = data[n]['y'];\n      }\n      if (data[n][1]) {\n        sum[0] += data[n][0]; //Σ(X)\n        sum[1] += data[n][1]; //Σ(Y)\n        sum[2] += data[n][0] * data[n][0]; //Σ(X^2)\n        sum[3] += data[n][0] * data[n][1]; //Σ(XY)\n        sum[4] += data[n][1] * data[n][1]; //Σ(Y^2)\n      }\n    }\n\n    var gradient = (n * sum[3] - sum[0] * sum[1]) / (n * sum[2] - sum[0] * sum[0]);\n    var intercept = (sum[1] / n) - (gradient * sum[0]) / n;\n    //var correlation = (n * sum[3] - sum[0] * sum[1]) / Math.sqrt((n * sum[2] - sum[0] * sum[0]) * (n * sum[4] - sum[1] * sum[1]));\n\n    if(regressionSettings != null &&\n      regressionSettings.xMin != null &&\n      regressionSettings.xMax != null &&\n      regressionSettings.numberOfPoints != null) {\n\n      //regression settings have been provided\n\n      /*\n       * get the xMin and xMax so we know over what range to plot\n       * regression points for\n       */\n      var xMin = regressionSettings.xMin;\n      var xMax = regressionSettings.xMax;\n\n      //get the number of points that should be plotted on the regression line\n      var numberOfPoints = regressionSettings.numberOfPoints;\n\n      //get the distance between the xMin and xMax\n      var xSpan = xMax - xMin;\n\n      //calculate the points on the regression line\n      for (var i = 0; i < numberOfPoints; i++) {\n        var x = xMin + xSpan * (i / numberOfPoints);\n\n        var coordinate = [x, x * gradient + intercept];\n        results.push(coordinate);\n      }\n    } else {\n      /*\n       * regression settings have not been provided so we will use the default\n       * x values for the regression points\n       */\n      for (var i = 0, len = data.length; i < len; i++) {\n        var coordinate = [data[i][0], data[i][0] * gradient + intercept];\n        results.push(coordinate);\n      }\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ' + Math.round(gradient*100) / 100 + 'x + ' + Math.round(intercept*100) / 100;\n    return {equation: [gradient, intercept], points: results, string: string};\n  }\n\n  /**\n   *  Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  _logarithmic(data, regressionSettings) {\n    var sum = [0, 0, 0, 0], n = 0, results = [],mean = 0 ;\n\n\n    for (len = data.length; n < len; n++) {\n      if (data[n]['x']) {\n        data[n][0] = data[n]['x'];\n        data[n][1] = data[n]['y'];\n      }\n      if (data[n][1]) {\n        sum[0] += Math.log(data[n][0]);\n        sum[1] += data[n][1] * Math.log(data[n][0]);\n        sum[2] += data[n][1];\n        sum[3] += Math.pow(Math.log(data[n][0]), 2);\n      }\n    }\n\n    var B = (n * sum[1] - sum[2] * sum[0]) / (n * sum[3] - sum[0] * sum[0]);\n    var A = (sum[2] - B * sum[0]) / n;\n\n    if(regressionSettings != null &&\n      regressionSettings.xMin != null &&\n      regressionSettings.xMax != null &&\n      regressionSettings.numberOfPoints != null) {\n\n      //regression settings have been provided\n\n      /*\n       * get the xMin and xMax so we know over what range to plot\n       * regression points for\n       */\n      var xMin = regressionSettings.xMin;\n      var xMax = regressionSettings.xMax;\n\n      //get the number of points that should be plotted on the regression line\n      var numberOfPoints = regressionSettings.numberOfPoints;\n\n      //get the distance between the xMin and xMax\n      var xSpan = xMax - xMin;\n\n      //calculate the points on the regression line\n      for (var i = 0; i < numberOfPoints; i++) {\n        var x = xMin + xSpan * (i / numberOfPoints);\n\n        if(x > 0) {\n          var y = A + B * Math.log(x);\n\n          if(!isNaN(y)) {\n            var coordinate = [x, y];\n            results.push(coordinate);\n          }\n        }\n      }\n    } else {\n      /*\n       * regression settings have not been provided so we will use the default\n       * x values for the regression points\n       */\n      for (var i = 0, len = data.length; i < len; i++) {\n        var coordinate = [data[i][0], A + B * Math.log(data[i][0])];\n        results.push(coordinate);\n      }\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ' + Math.round(A*100) / 100 + ' + ' + Math.round(B*100) / 100 + ' ln(x)';\n\n    return {equation: [A, B], points: results, string: string};\n  }\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  _power(data) {\n    var sum = [0, 0, 0, 0], n = 0, results = [];\n\n    for (len = data.length; n < len; n++) {\n      if (data[n]['x']) {\n        data[n][0] = data[n]['x'];\n        data[n][1] = data[n]['y'];\n      }\n      if (data[n][1]) {\n        sum[0] += Math.log(data[n][0]);\n        sum[1] += Math.log(data[n][1]) * Math.log(data[n][0]);\n        sum[2] += Math.log(data[n][1]);\n        sum[3] += Math.pow(Math.log(data[n][0]), 2);\n      }\n    }\n\n    var B = (n * sum[1] - sum[2] * sum[0]) / (n * sum[3] - sum[0] * sum[0]);\n    var A = Math.pow(Math.E, (sum[2] - B * sum[0]) / n);\n\n    for (var i = 0, len = data.length; i < len; i++) {\n      var coordinate = [data[i][0], A * Math.pow(data[i][0] , B)];\n      results.push(coordinate);\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ' + Math.round(A*100) / 100 + 'x^' + Math.round(B*100) / 100;\n\n    return {equation: [A, B], points: results, string: string};\n  }\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  _polynomial(data, order, regressionSettings) {\n    if(typeof order == 'undefined'){\n      order = 2;\n    }\n    var lhs = [], rhs = [], results = [], a = 0, b = 0, i = 0, k = order + 1;\n\n    for (; i < k; i++) {\n      for (var l = 0, len = data.length; l < len; l++) {\n        if (data[l]['x']) {\n          data[l][0] = data[l]['x'];\n          data[l][1] = data[l]['y'];\n        }\n        if (data[l][1]) {\n          a += Math.pow(data[l][0], i) * data[l][1];\n        }\n      }\n      lhs.push(a), a = 0;\n      var c = [];\n      for (var j = 0; j < k; j++) {\n        for (var l = 0, len = data.length; l < len; l++) {\n          if (data[l][1]) {\n            b += Math.pow(data[l][0], i + j);\n          }\n        }\n        c.push(b), b = 0;\n      }\n      rhs.push(c);\n    }\n    rhs.push(lhs);\n\n    var equation = this.gaussianElimination(rhs, k);\n\n    if(regressionSettings != null &&\n      regressionSettings.xMin != null &&\n      regressionSettings.xMax != null &&\n      regressionSettings.numberOfPoints != null) {\n\n      //regression settings have been provided\n\n      /*\n       * get the xMin and xMax so we know over what range to plot\n       * regression points for\n       */\n      var xMin = regressionSettings.xMin;\n      var xMax = regressionSettings.xMax;\n\n      //get the number of points that should be plotted on the regression line\n      var numberOfPoints = regressionSettings.numberOfPoints;\n\n      //get the distance between the xMin and xMax\n      var xSpan = xMax - xMin;\n\n      //calculate the points on the regression line\n      for (var i = 0; i < numberOfPoints; i++) {\n        var x = xMin + xSpan * (i / numberOfPoints);\n        var answer = 0;\n        for (var w = 0; w < equation.length; w++) {\n          answer += equation[w] * Math.pow(x, w);\n        }\n        results.push([x, answer]);\n      }\n    } else {\n      /*\n       * regression settings have not been provided so we will use the default\n       * x values for the regression points\n       */\n      for (var i = 0, len = data.length; i < len; i++) {\n        var answer = 0;\n        for (var w = 0; w < equation.length; w++) {\n          answer += equation[w] * Math.pow(data[i][0], w);\n        }\n        results.push([data[i][0], answer]);\n      }\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ';\n\n    for(var i = equation.length-1; i >= 0; i--){\n      if(i > 1) string += Math.round(equation[i]*100) / 100 + 'x^' + i + ' + ';\n      else if (i == 1) string += Math.round(equation[i]*100) / 100 + 'x' + ' + ';\n      else string += Math.round(equation[i]*100) / 100;\n    }\n\n    return {equation: equation, points: results, string: string};\n  }\n\n  /**\n   * @author: Ignacio Vazquez\n   * Based on\n   * - http://commons.apache.org/proper/commons-math/download_math.cgi LoesInterpolator.java\n   * - https://gist.github.com/avibryant/1151823\n   */\n  _loess(data, bandwidth) {\n    var bandwidth = bandwidth || 0.25 ;\n\n    var xval = data.map(function(pair){return pair[0]});\n    var distinctX =  array_unique(xval) ;\n    if (  2 / distinctX.length  > bandwidth ) {\n      bandwidth = Math.min( 2 / distinctX.length, 1 );\n      console.warn(\"updated bandwith to \"+ bandwidth);\n    }\n\n    var yval = data.map(function(pair){return pair[1]});\n\n    function array_unique(values) {\n      var o = {}, i, l = values.length, r = [];\n      for(i=0; i<l;i+=1) o[values[i]] = values[i];\n      for(i in o) r.push(o[i]);\n      return r;\n    }\n\n    function tricube(x) {\n      var tmp = 1 - x * x * x;\n      return tmp * tmp * tmp;\n    }\n\n    var res = [];\n\n    var left = 0;\n    var right = Math.floor(bandwidth * xval.length) - 1;\n\n    for(var i in xval)\n    {\n      var x = xval[i];\n\n      if (i > 0) {\n        if (right < xval.length - 1 &&\n          xval[right+1] - xval[i] < xval[i] - xval[left]) {\n          left++;\n          right++;\n        }\n      }\n      //console.debug(\"left: \"+left  + \" right: \" + right );\n      var edge;\n      if (xval[i] - xval[left] > xval[right] - xval[i])\n        edge = left;\n      else\n        edge = right;\n      var denom = Math.abs(1.0 / (xval[edge] - x));\n      var sumWeights = 0;\n      var sumX = 0, sumXSquared = 0, sumY = 0, sumXY = 0;\n\n      var k = left;\n      while(k <= right)\n      {\n        var xk = xval[k];\n        var yk = yval[k];\n        var dist;\n        if (k < i) {\n          dist = (x - xk);\n        } else {\n          dist = (xk - x);\n        }\n        var w = tricube(dist * denom);\n        var xkw = xk * w;\n        sumWeights += w;\n        sumX += xkw;\n        sumXSquared += xk * xkw;\n        sumY += yk * w;\n        sumXY += yk * xkw;\n        k++;\n      }\n\n      var meanX = sumX / sumWeights;\n      //console.debug(meanX);\n      var meanY = sumY / sumWeights;\n      var meanXY = sumXY / sumWeights;\n      var meanXSquared = sumXSquared / sumWeights;\n\n      var beta;\n      if (meanXSquared == meanX * meanX)\n        beta = 0;\n      else\n        beta = (meanXY - meanX * meanY) / (meanXSquared - meanX * meanX);\n\n      var alpha = meanY - beta * meanX;\n      res[i] = beta * x + alpha;\n    }\n    console.debug(res);\n    return {\n      equation: \"\" ,\n      points: xval.map(function(x,i){return [x, res[i]]}),\n      string:\"\"\n    } ;\n  }\n\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  gaussianElimination(a, o) {\n    var i = 0, j = 0, k = 0, maxrow = 0, tmp = 0, n = a.length - 1, x = new Array(o);\n    for (i = 0; i < n; i++) {\n      maxrow = i;\n      for (j = i + 1; j < n; j++) {\n        if (Math.abs(a[i][j]) > Math.abs(a[i][maxrow]))\n          maxrow = j;\n      }\n      for (k = i; k < n + 1; k++) {\n        tmp = a[k][i];\n        a[k][i] = a[k][maxrow];\n        a[k][maxrow] = tmp;\n      }\n      for (j = i + 1; j < n; j++) {\n        for (k = n; k >= i; k--) {\n          a[k][j] -= a[k][i] * a[i][j] / a[i][i];\n        }\n      }\n    }\n    for (j = n - 1; j >= 0; j--) {\n      tmp = 0;\n      for (k = j + 1; k < n; k++)\n        tmp += a[k][j] * x[k];\n      x[j] = (a[n][j] - tmp) / a[j][j];\n    }\n    return (x);\n  }\n\n  /**\n   * @author Ignacio Vazquez\n   * See http://en.wikipedia.org/wiki/Coefficient_of_determination for theaorical details\n   */\n  coefficientOfDetermination (data, pred ) {\n\n    var i = 0;\n    var SSE = 0;\n    var SSYY = 0;\n    var mean = 0;\n\n    // Calc the mean\n    for (i = 0 ; i < data.length ; i++ ){\n      mean +=  data[i][1] / data.length ;\n    }\n\n    // Calc the coefficent of determination\n    for (i = 0 ; i < data.length ; i++ ){\n      SSYY +=  Math.pow( data[i][1] -  pred[i][1] , 2) ;\n      SSE +=  Math.pow( data[i][1] -  mean , 2) ;\n    }\n    return  1 - ( SSYY / SSE)  ;\n  }\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (!this.canEdit(component) && this.UtilService.hasNodeEnteredEvent(nodeEvents)) {\n      /*\n       * the student can't perform any work on this component and has visited\n       * this step so we will mark it as completed\n       */\n      return true;\n    }\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let componentState = componentStates[i];\n          if (componentState.isSubmit && componentState.studentData) {\n\n            let studentData = componentState.studentData;\n\n            // component state is a submission\n            if (this.hasSeriesData(studentData) || this.hasTrialData(studentData)) {\n              // there is series data so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData) {\n          if (this.hasSeriesData(studentData) || this.hasTrialData(studentData)) {\n            // there is series data so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Determine if the student can perform any work on this component.\n   * @param component The component content.\n   * @return Whether the student can perform any work on this component.\n   */\n  canEdit(component) {\n    let series = component.series;\n    for (let singleSeries of series) {\n      if (singleSeries.canEdit) {\n        return true;\n      }\n    }\n    if (this.UtilService.hasImportWorkConnectedComponent(component)) {\n      return true;\n    }\n    return false;\n  }\n\n  /**\n   * Check if student data contains any series data\n   * @param studentData student data from a component state\n   * @returns whether the student data has series data\n   */\n  hasSeriesData(studentData) {\n    let result = false;\n\n    let series = studentData.series;\n    if (series && series.length) {\n      // check for any data in any series\n      for (let i = 0, l = series.length; i < l; i++) {\n        let data = series[i].data;\n\n        if (data && data.length) {\n          // there is series data so the component is completed\n          result = true;\n          break;\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Check if the student data contains any trial data\n   * @param studentData student data from a component state\n   * @return whether the student data has trial data\n   */\n  hasTrialData(studentData) {\n    var result = false;\n\n    if (studentData != null) {\n      var trials = studentData.trials;\n\n      if (trials != null) {\n\n        // loop through all the trials\n        for (var t = 0; t < trials.length; t++) {\n\n          var trial = trials[t];\n\n          if (trial != null) {\n            var series = trial.series;\n\n            // loop through all the series\n            for (var s = 0; s < series.length; s++) {\n\n              // get a single series\n              var singleSeries = series[s];\n\n              if (singleSeries != null) {\n\n                // get the data from the single series\n                var data = singleSeries.data;\n\n                if (data != null && data.length > 0) {\n                  // the single series has data\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return result;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n    let hasStudentWork = false;\n\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        if (studentData.version == 1) {\n          /*\n           * this is the old graph student data format where the\n           * student data can contain multiple series.\n           */\n\n           // check if any of the series has a data point\n           if (this.anySeriesHasDataPoint(studentData.series)) {\n\n             // at least one of the series has a data point\n             hasStudentWork = true;\n           }\n        } else {\n          /*\n           * this is the new graph student data format where the\n           * student data can contain multiple trials and each trial\n           * can contain multiple series.\n           */\n\n          // check if any of the trials has a data point\n          if (this.anyTrialHasDataPoint(studentData.trials)) {\n\n            /*\n             * at least one of the trials has a series that has a\n             * data point\n             */\n            hasStudentWork = true;\n          }\n        }\n      }\n\n      // check if the student has changed any of the axis limits\n      if (this.anyAxisLimitChanged(componentState, componentContent)) {\n        hasStudentWork = true;\n      }\n    }\n\n    return hasStudentWork;\n  }\n\n  /**\n   * Check if the student has changed any of the axis limits\n   * @param componentState the component state\n   * @param componentContent the component content\n   * @return whether the student has changed any of the axis limits\n   */\n  anyAxisLimitChanged(componentState, componentContent) {\n\n    if (componentState != null && componentState.studentData != null && componentContent != null) {\n\n      if (componentState.studentData.xAxis != null && componentContent.xAxis != null) {\n\n        if (componentState.studentData.xAxis.min != componentContent.xAxis.min) {\n          // the student has changed the x min\n          return true;\n        } else if (componentState.studentData.xAxis.max != componentContent.xAxis.max) {\n          // the student has changed the x max\n          return true;\n        }\n      }\n\n      if (componentState.studentData.yAxis != null && componentContent.yAxis != null) {\n\n        if (componentState.studentData.yAxis.min != componentContent.yAxis.min) {\n          // the student has changed the y min\n          return true;\n        } else if (componentState.studentData.yAxis.max != componentContent.yAxis.max) {\n          // the student has changed the y max\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if any of the trials contains a data point\n   * @param trials an array of trials\n   * @return whether any of the trials contains a data point\n   */\n  anyTrialHasDataPoint(trials) {\n    let hasDataPoint = false;\n\n    if (trials != null) {\n\n      // loop through all the trials\n      for (let t = 0; t < trials.length; t++) {\n        let trial = trials[t];\n\n        // check if the trial contains a data point\n        hasDataPoint = this.trialHasDataPoint(trial);\n\n        if (hasDataPoint) {\n          // the trial has a data point so we are done looking\n          break;\n        }\n      }\n    }\n\n    return hasDataPoint;\n  }\n\n  /**\n   * Check if a trial has a data point\n   * @param trial a trial object which can contain multiple series\n   * @return whether the trial contains a data point\n   */\n  trialHasDataPoint(trial) {\n    let hasDataPoint = false;\n\n    if (trial != null) {\n      let series = trial.series;\n\n      if (series != null) {\n\n        // loop through all the series\n        for (let s = 0; s < series.length; s++) {\n\n          let singleSeries = series[s];\n\n          if (singleSeries != null) {\n\n            // check if the series contains a data point\n            hasDataPoint = this.seriesHasDataPoint(singleSeries);\n\n            if (hasDataPoint) {\n              // the series has a data point so we are done looking\n              break;\n            }\n          }\n        }\n      }\n    }\n\n    return hasDataPoint;\n  }\n\n  /**\n   * Check if an array of series has any data point\n   * @param multipleSeries an array of series\n   * @return whether any of the series has a data point\n   */\n  anySeriesHasDataPoint(multipleSeries) {\n\n    let hasDataPoint = false;\n\n    if (multipleSeries != null) {\n\n      // loop through all the series\n      for (let s = 0; s < multipleSeries.length; s++) {\n        let singleSeries = multipleSeries[s];\n\n        if (singleSeries != null) {\n\n          // check if the series has a data point\n          hasDataPoint = this.seriesHasDataPoint(singleSeries);\n\n          if (hasDataPoint) {\n            // the series has a data point so we are done looking\n            break;\n          }\n        }\n      }\n    }\n\n    return hasDataPoint;\n  }\n\n  /**\n   * Check if a series has a data point\n   * @param singleSeries a series object\n   * @return whether the series object has any data points\n   */\n  seriesHasDataPoint(singleSeries) {\n    let hasDataPoint = false;\n\n    if (singleSeries != null) {\n\n      // get the data from the series\n      let data = singleSeries.data;\n\n      if (data.length > 0) {\n        // the series has a data point\n        hasDataPoint = true;\n      }\n    }\n\n    return hasDataPoint;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let componentId = componentState.componentId;\n    let highchartsDiv = angular.element('#chart_' + componentId).find('.highcharts-container');\n    if (highchartsDiv != null && highchartsDiv.length > 0) {\n      highchartsDiv = highchartsDiv[0];\n\n      // convert the div element to a canvas element\n      html2canvas(highchartsDiv).then((canvas) => {\n\n        // get the canvas as a base64 string\n        let img_b64 = canvas.toDataURL('image/png');\n\n        // get the image object\n        let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n        // add the image to the student assets\n        this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n          deferred.resolve(asset);\n        });\n      });\n    }\n    return deferred.promise;\n  }\n}\n\nGraphService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default GraphService;\n"]}
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ComponentService from '../componentService';\nimport html2canvas from 'html2canvas';\n\nclass GraphService extends ComponentService {\n  constructor($filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super($filter, StudentDataService, UtilService);\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('graph.componentTypeLabel');\n  }\n\n  /**\n   * Create a Graph component object\n   * @returns a new Graph component object\n   */\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'Graph';\n    component.title = '';\n    component.width = 800;\n    component.height = 500;\n    component.enableTrials = false;\n    component.canCreateNewTrials = false;\n    component.canDeleteTrials = false;\n    component.hideAllTrialsOnNewTrial = false;\n    component.canStudentHideSeriesOnLegendClick = false;\n    component.roundValuesTo = 'integer';\n    component.graphType = 'line';\n    component.xAxis = {\n      title: {\n        text: this.$translate('graph.timeSeconds')\n      },\n      min: 0,\n      max: 100,\n      units: this.$translate('graph.secondsUnit'),\n      locked: true,\n      type: 'limits'\n    };\n    component.yAxis = {\n      title: {\n        text: this.$translate('graph.positionMeters')\n      },\n      min: 0,\n      max: 100,\n      units: this.$translate('graph.metersUnit'),\n      locked: true\n    };\n    component.series = [\n      {\n        name: this.$translate('graph.prediction'),\n        data: [],\n        color: 'blue',\n        dashStyle: 'Solid',\n        marker: {\n          symbol: 'circle'\n        },\n        regression: false,\n        regressionSettings: {},\n        canEdit: true\n      }\n    ];\n\n    return component;\n  }\n\n  /**\n   * Code extracted from https://github.com/streamlinesocial/highcharts-regression\n   * Loop through all the series that are passed in and find the ones that we\n   * need to generate a regression series for. Return the regression series\n   * that are generated in an array.\n   * @param series an array of series\n   * @return an array of regression series\n   */\n  generateRegressionSeries(series) {\n    var regressionSeries = [];\n    var i = 0 ;\n    for (i = 0 ; i < series.length ; i++){\n      var s = series[i];\n      if ( s.regression ) {\n        s.regressionSettings =  s.regressionSettings || {} ;\n        var regressionType = s.regressionSettings.type || \"linear\" ;\n        var regression;\n\n        var color = s.color;\n\n        if (s.regressionSettings.color != null) {\n          color = s.regressionSettings.color;\n        }\n\n        var extraSerie = {\n          data:[],\n          color: color ,\n          yAxis: s.yAxis ,\n          lineWidth: 2,\n          marker: {enabled: false} ,\n          isRegressionLine: true,\n          name: s.regressionSettings.label || \"Equation: %eq\"\n        };\n\n\n        extraSerie.type = \"spline\";\n\n        if (regressionType == \"linear\") {\n          regression = this._linear(s.data, s.regressionSettings) ;\n          extraSerie.type = \"line\";\n        }else if (regressionType == \"exponential\") {\n          regression = this._exponential(s.data, s.regressionSettings) ;\n        }else if (regressionType == \"polynomial\"){\n          regression = this._polynomial(s.data, 2, s.regressionSettings) ;\n        }else if (regressionType == \"logarithmic\"){\n          regression = this._logarithmic(s.data, s.regressionSettings) ;\n        }else if (regressionType == \"loess\"){\n          var loessSmooth = s.regressionSettings.loessSmooth || 25\n          regression = this._loess(s.data, loessSmooth/100) ;\n        }else {\n          console.error(\"Invalid regression type: \" , regressionType) ;\n          break;\n        }\n\n        regression.rSquared =  this.coefficientOfDetermination(s.data, regression.points).toFixed(2);\n        regression.rValue = Math.sqrt(regression.rSquared,2).toFixed(2) ;\n        extraSerie.data = regression.points ;\n        extraSerie.name = extraSerie.name.replace(\"%r2\",regression.rSquared);\n        extraSerie.name = extraSerie.name.replace(\"%r\",regression.rValue);\n        extraSerie.name = extraSerie.name.replace(\"%eq\",regression.string);\n\n        extraSerie.regressionOutputs = regression ;\n\n        regressionSeries.push(extraSerie);\n      }\n    }\n\n    return regressionSeries;\n  };\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  _exponential(data, regressionSettings) {\n    var sum = [0, 0, 0, 0, 0, 0], n = 0, results = [];\n\n    for (len = data.length; n < len; n++) {\n      if (data[n]['x']) {\n        data[n][0] = data[n]['x'];\n        data[n][1] = data[n]['y'];\n      }\n      if (data[n][1]) {\n        sum[0] += data[n][0]; // X\n        sum[1] += data[n][1]; // Y\n        sum[2] += data[n][0] * data[n][0] * data[n][1]; // XXY\n        sum[3] += data[n][1] * Math.log(data[n][1]); // Y Log Y\n        sum[4] += data[n][0] * data[n][1] * Math.log(data[n][1]); //YY Log Y\n        sum[5] += data[n][0] * data[n][1]; //XY\n      }\n    }\n\n    var denominator = (sum[1] * sum[2] - sum[5] * sum[5]);\n    var A = Math.pow(Math.E, (sum[2] * sum[3] - sum[5] * sum[4]) / denominator);\n    var B = (sum[1] * sum[4] - sum[5] * sum[3]) / denominator;\n\n    if(regressionSettings != null &&\n      regressionSettings.xMin != null &&\n      regressionSettings.xMax != null &&\n      regressionSettings.numberOfPoints != null) {\n\n      //regression settings have been provided\n\n      /*\n       * get the xMin and xMax so we know over what range to plot\n       * regression points for\n       */\n      var xMin = regressionSettings.xMin;\n      var xMax = regressionSettings.xMax;\n\n      //get the number of points that should be plotted on the regression line\n      var numberOfPoints = regressionSettings.numberOfPoints;\n\n      //get the distance between the xMin and xMax\n      var xSpan = xMax - xMin;\n\n      //calculate the points on the regression line\n      for (var i = 0; i < numberOfPoints; i++) {\n        var x = xMin + xSpan * (i / numberOfPoints);\n\n        var coordinate = [x, A * Math.pow(Math.E, B * x)];\n        results.push(coordinate);\n      }\n    } else {\n      /*\n       * regression settings have not been provided so we will use the default\n       * x values for the regression points\n       */\n      for (var i = 0, len = data.length; i < len; i++) {\n        var coordinate = [data[i][0], A * Math.pow(Math.E, B * data[i][0])];\n        results.push(coordinate);\n      }\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ' + Math.round(A*100) / 100 + 'e^(' + Math.round(B*100) / 100 + 'x)';\n\n    return {equation: [A, B], points: results, string: string};\n  }\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   * Human readable formulas:\n   *\n   *        N * Σ(XY) - Σ(X)\n   * intercept = ---------------------\n   *        N * Σ(X^2) - Σ(X)^2\n   *\n   * correlation = N * Σ(XY) - Σ(X) * Σ (Y) / √ (  N * Σ(X^2) - Σ(X) ) * ( N * Σ(Y^2) - Σ(Y)^2 ) ) )\n   *\n   */\n  _linear(data, regressionSettings) {\n    var sum = [0, 0, 0, 0, 0], n = 0, results = [], N = data.length;\n\n    for (; n < data.length; n++) {\n      if (data[n]['x']) {\n        data[n][0] = data[n]['x'];\n        data[n][1] = data[n]['y'];\n      }\n      if (data[n][1]) {\n        sum[0] += data[n][0]; //Σ(X)\n        sum[1] += data[n][1]; //Σ(Y)\n        sum[2] += data[n][0] * data[n][0]; //Σ(X^2)\n        sum[3] += data[n][0] * data[n][1]; //Σ(XY)\n        sum[4] += data[n][1] * data[n][1]; //Σ(Y^2)\n      }\n    }\n\n    var gradient = (n * sum[3] - sum[0] * sum[1]) / (n * sum[2] - sum[0] * sum[0]);\n    var intercept = (sum[1] / n) - (gradient * sum[0]) / n;\n    //var correlation = (n * sum[3] - sum[0] * sum[1]) / Math.sqrt((n * sum[2] - sum[0] * sum[0]) * (n * sum[4] - sum[1] * sum[1]));\n\n    if(regressionSettings != null &&\n      regressionSettings.xMin != null &&\n      regressionSettings.xMax != null &&\n      regressionSettings.numberOfPoints != null) {\n\n      //regression settings have been provided\n\n      /*\n       * get the xMin and xMax so we know over what range to plot\n       * regression points for\n       */\n      var xMin = regressionSettings.xMin;\n      var xMax = regressionSettings.xMax;\n\n      //get the number of points that should be plotted on the regression line\n      var numberOfPoints = regressionSettings.numberOfPoints;\n\n      //get the distance between the xMin and xMax\n      var xSpan = xMax - xMin;\n\n      //calculate the points on the regression line\n      for (var i = 0; i < numberOfPoints; i++) {\n        var x = xMin + xSpan * (i / numberOfPoints);\n\n        var coordinate = [x, x * gradient + intercept];\n        results.push(coordinate);\n      }\n    } else {\n      /*\n       * regression settings have not been provided so we will use the default\n       * x values for the regression points\n       */\n      for (var i = 0, len = data.length; i < len; i++) {\n        var coordinate = [data[i][0], data[i][0] * gradient + intercept];\n        results.push(coordinate);\n      }\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ' + Math.round(gradient*100) / 100 + 'x + ' + Math.round(intercept*100) / 100;\n    return {equation: [gradient, intercept], points: results, string: string};\n  }\n\n  /**\n   *  Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  _logarithmic(data, regressionSettings) {\n    var sum = [0, 0, 0, 0], n = 0, results = [],mean = 0 ;\n\n\n    for (len = data.length; n < len; n++) {\n      if (data[n]['x']) {\n        data[n][0] = data[n]['x'];\n        data[n][1] = data[n]['y'];\n      }\n      if (data[n][1]) {\n        sum[0] += Math.log(data[n][0]);\n        sum[1] += data[n][1] * Math.log(data[n][0]);\n        sum[2] += data[n][1];\n        sum[3] += Math.pow(Math.log(data[n][0]), 2);\n      }\n    }\n\n    var B = (n * sum[1] - sum[2] * sum[0]) / (n * sum[3] - sum[0] * sum[0]);\n    var A = (sum[2] - B * sum[0]) / n;\n\n    if(regressionSettings != null &&\n      regressionSettings.xMin != null &&\n      regressionSettings.xMax != null &&\n      regressionSettings.numberOfPoints != null) {\n\n      //regression settings have been provided\n\n      /*\n       * get the xMin and xMax so we know over what range to plot\n       * regression points for\n       */\n      var xMin = regressionSettings.xMin;\n      var xMax = regressionSettings.xMax;\n\n      //get the number of points that should be plotted on the regression line\n      var numberOfPoints = regressionSettings.numberOfPoints;\n\n      //get the distance between the xMin and xMax\n      var xSpan = xMax - xMin;\n\n      //calculate the points on the regression line\n      for (var i = 0; i < numberOfPoints; i++) {\n        var x = xMin + xSpan * (i / numberOfPoints);\n\n        if(x > 0) {\n          var y = A + B * Math.log(x);\n\n          if(!isNaN(y)) {\n            var coordinate = [x, y];\n            results.push(coordinate);\n          }\n        }\n      }\n    } else {\n      /*\n       * regression settings have not been provided so we will use the default\n       * x values for the regression points\n       */\n      for (var i = 0, len = data.length; i < len; i++) {\n        var coordinate = [data[i][0], A + B * Math.log(data[i][0])];\n        results.push(coordinate);\n      }\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ' + Math.round(A*100) / 100 + ' + ' + Math.round(B*100) / 100 + ' ln(x)';\n\n    return {equation: [A, B], points: results, string: string};\n  }\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  _power(data) {\n    var sum = [0, 0, 0, 0], n = 0, results = [];\n\n    for (len = data.length; n < len; n++) {\n      if (data[n]['x']) {\n        data[n][0] = data[n]['x'];\n        data[n][1] = data[n]['y'];\n      }\n      if (data[n][1]) {\n        sum[0] += Math.log(data[n][0]);\n        sum[1] += Math.log(data[n][1]) * Math.log(data[n][0]);\n        sum[2] += Math.log(data[n][1]);\n        sum[3] += Math.pow(Math.log(data[n][0]), 2);\n      }\n    }\n\n    var B = (n * sum[1] - sum[2] * sum[0]) / (n * sum[3] - sum[0] * sum[0]);\n    var A = Math.pow(Math.E, (sum[2] - B * sum[0]) / n);\n\n    for (var i = 0, len = data.length; i < len; i++) {\n      var coordinate = [data[i][0], A * Math.pow(data[i][0] , B)];\n      results.push(coordinate);\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ' + Math.round(A*100) / 100 + 'x^' + Math.round(B*100) / 100;\n\n    return {equation: [A, B], points: results, string: string};\n  }\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  _polynomial(data, order, regressionSettings) {\n    if(typeof order == 'undefined'){\n      order = 2;\n    }\n    var lhs = [], rhs = [], results = [], a = 0, b = 0, i = 0, k = order + 1;\n\n    for (; i < k; i++) {\n      for (var l = 0, len = data.length; l < len; l++) {\n        if (data[l]['x']) {\n          data[l][0] = data[l]['x'];\n          data[l][1] = data[l]['y'];\n        }\n        if (data[l][1]) {\n          a += Math.pow(data[l][0], i) * data[l][1];\n        }\n      }\n      lhs.push(a), a = 0;\n      var c = [];\n      for (var j = 0; j < k; j++) {\n        for (var l = 0, len = data.length; l < len; l++) {\n          if (data[l][1]) {\n            b += Math.pow(data[l][0], i + j);\n          }\n        }\n        c.push(b), b = 0;\n      }\n      rhs.push(c);\n    }\n    rhs.push(lhs);\n\n    var equation = this.gaussianElimination(rhs, k);\n\n    if(regressionSettings != null &&\n      regressionSettings.xMin != null &&\n      regressionSettings.xMax != null &&\n      regressionSettings.numberOfPoints != null) {\n\n      //regression settings have been provided\n\n      /*\n       * get the xMin and xMax so we know over what range to plot\n       * regression points for\n       */\n      var xMin = regressionSettings.xMin;\n      var xMax = regressionSettings.xMax;\n\n      //get the number of points that should be plotted on the regression line\n      var numberOfPoints = regressionSettings.numberOfPoints;\n\n      //get the distance between the xMin and xMax\n      var xSpan = xMax - xMin;\n\n      //calculate the points on the regression line\n      for (var i = 0; i < numberOfPoints; i++) {\n        var x = xMin + xSpan * (i / numberOfPoints);\n        var answer = 0;\n        for (var w = 0; w < equation.length; w++) {\n          answer += equation[w] * Math.pow(x, w);\n        }\n        results.push([x, answer]);\n      }\n    } else {\n      /*\n       * regression settings have not been provided so we will use the default\n       * x values for the regression points\n       */\n      for (var i = 0, len = data.length; i < len; i++) {\n        var answer = 0;\n        for (var w = 0; w < equation.length; w++) {\n          answer += equation[w] * Math.pow(data[i][0], w);\n        }\n        results.push([data[i][0], answer]);\n      }\n    }\n\n    results.sort(function(a,b){\n      if(a[0] > b[0]){ return 1}\n      if(a[0] < b[0]){ return -1}\n      return 0;\n    });\n\n    var string = 'y = ';\n\n    for(var i = equation.length-1; i >= 0; i--){\n      if(i > 1) string += Math.round(equation[i]*100) / 100 + 'x^' + i + ' + ';\n      else if (i == 1) string += Math.round(equation[i]*100) / 100 + 'x' + ' + ';\n      else string += Math.round(equation[i]*100) / 100;\n    }\n\n    return {equation: equation, points: results, string: string};\n  }\n\n  /**\n   * @author: Ignacio Vazquez\n   * Based on\n   * - http://commons.apache.org/proper/commons-math/download_math.cgi LoesInterpolator.java\n   * - https://gist.github.com/avibryant/1151823\n   */\n  _loess(data, bandwidth) {\n    var bandwidth = bandwidth || 0.25 ;\n\n    var xval = data.map(function(pair){return pair[0]});\n    var distinctX =  array_unique(xval) ;\n    if (  2 / distinctX.length  > bandwidth ) {\n      bandwidth = Math.min( 2 / distinctX.length, 1 );\n      console.warn(\"updated bandwith to \"+ bandwidth);\n    }\n\n    var yval = data.map(function(pair){return pair[1]});\n\n    function array_unique(values) {\n      var o = {}, i, l = values.length, r = [];\n      for(i=0; i<l;i+=1) o[values[i]] = values[i];\n      for(i in o) r.push(o[i]);\n      return r;\n    }\n\n    function tricube(x) {\n      var tmp = 1 - x * x * x;\n      return tmp * tmp * tmp;\n    }\n\n    var res = [];\n\n    var left = 0;\n    var right = Math.floor(bandwidth * xval.length) - 1;\n\n    for(var i in xval)\n    {\n      var x = xval[i];\n\n      if (i > 0) {\n        if (right < xval.length - 1 &&\n          xval[right+1] - xval[i] < xval[i] - xval[left]) {\n          left++;\n          right++;\n        }\n      }\n      //console.debug(\"left: \"+left  + \" right: \" + right );\n      var edge;\n      if (xval[i] - xval[left] > xval[right] - xval[i])\n        edge = left;\n      else\n        edge = right;\n      var denom = Math.abs(1.0 / (xval[edge] - x));\n      var sumWeights = 0;\n      var sumX = 0, sumXSquared = 0, sumY = 0, sumXY = 0;\n\n      var k = left;\n      while(k <= right)\n      {\n        var xk = xval[k];\n        var yk = yval[k];\n        var dist;\n        if (k < i) {\n          dist = (x - xk);\n        } else {\n          dist = (xk - x);\n        }\n        var w = tricube(dist * denom);\n        var xkw = xk * w;\n        sumWeights += w;\n        sumX += xkw;\n        sumXSquared += xk * xkw;\n        sumY += yk * w;\n        sumXY += yk * xkw;\n        k++;\n      }\n\n      var meanX = sumX / sumWeights;\n      //console.debug(meanX);\n      var meanY = sumY / sumWeights;\n      var meanXY = sumXY / sumWeights;\n      var meanXSquared = sumXSquared / sumWeights;\n\n      var beta;\n      if (meanXSquared == meanX * meanX)\n        beta = 0;\n      else\n        beta = (meanXY - meanX * meanY) / (meanXSquared - meanX * meanX);\n\n      var alpha = meanY - beta * meanX;\n      res[i] = beta * x + alpha;\n    }\n    console.debug(res);\n    return {\n      equation: \"\" ,\n      points: xval.map(function(x,i){return [x, res[i]]}),\n      string:\"\"\n    } ;\n  }\n\n\n  /**\n   * Code extracted from https://github.com/Tom-Alexander/regression-js/\n   */\n  gaussianElimination(a, o) {\n    var i = 0, j = 0, k = 0, maxrow = 0, tmp = 0, n = a.length - 1, x = new Array(o);\n    for (i = 0; i < n; i++) {\n      maxrow = i;\n      for (j = i + 1; j < n; j++) {\n        if (Math.abs(a[i][j]) > Math.abs(a[i][maxrow]))\n          maxrow = j;\n      }\n      for (k = i; k < n + 1; k++) {\n        tmp = a[k][i];\n        a[k][i] = a[k][maxrow];\n        a[k][maxrow] = tmp;\n      }\n      for (j = i + 1; j < n; j++) {\n        for (k = n; k >= i; k--) {\n          a[k][j] -= a[k][i] * a[i][j] / a[i][i];\n        }\n      }\n    }\n    for (j = n - 1; j >= 0; j--) {\n      tmp = 0;\n      for (k = j + 1; k < n; k++)\n        tmp += a[k][j] * x[k];\n      x[j] = (a[n][j] - tmp) / a[j][j];\n    }\n    return (x);\n  }\n\n  /**\n   * @author Ignacio Vazquez\n   * See http://en.wikipedia.org/wiki/Coefficient_of_determination for theaorical details\n   */\n  coefficientOfDetermination (data, pred ) {\n\n    var i = 0;\n    var SSE = 0;\n    var SSYY = 0;\n    var mean = 0;\n\n    // Calc the mean\n    for (i = 0 ; i < data.length ; i++ ){\n      mean +=  data[i][1] / data.length ;\n    }\n\n    // Calc the coefficent of determination\n    for (i = 0 ; i < data.length ; i++ ){\n      SSYY +=  Math.pow( data[i][1] -  pred[i][1] , 2) ;\n      SSE +=  Math.pow( data[i][1] -  mean , 2) ;\n    }\n    return  1 - ( SSYY / SSE)  ;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (!this.canEdit(component) && this.UtilService.hasNodeEnteredEvent(nodeEvents)) {\n      /*\n       * the student can't perform any work on this component and has visited\n       * this step so we will mark it as completed\n       */\n      return true;\n    }\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let componentState = componentStates[i];\n          if (componentState.isSubmit && componentState.studentData) {\n\n            let studentData = componentState.studentData;\n\n            // component state is a submission\n            if (this.hasSeriesData(studentData) || this.hasTrialData(studentData)) {\n              // there is series data so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData) {\n          if (this.hasSeriesData(studentData) || this.hasTrialData(studentData)) {\n            // there is series data so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Determine if the student can perform any work on this component.\n   * @param component The component content.\n   * @return Whether the student can perform any work on this component.\n   */\n  canEdit(component) {\n    let series = component.series;\n    for (let singleSeries of series) {\n      if (singleSeries.canEdit) {\n        return true;\n      }\n    }\n    if (this.UtilService.hasImportWorkConnectedComponent(component)) {\n      return true;\n    }\n    return false;\n  }\n\n  /**\n   * Check if student data contains any series data\n   * @param studentData student data from a component state\n   * @returns whether the student data has series data\n   */\n  hasSeriesData(studentData) {\n    let result = false;\n\n    let series = studentData.series;\n    if (series && series.length) {\n      // check for any data in any series\n      for (let i = 0, l = series.length; i < l; i++) {\n        let data = series[i].data;\n\n        if (data && data.length) {\n          // there is series data so the component is completed\n          result = true;\n          break;\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Check if the student data contains any trial data\n   * @param studentData student data from a component state\n   * @return whether the student data has trial data\n   */\n  hasTrialData(studentData) {\n    var result = false;\n\n    if (studentData != null) {\n      var trials = studentData.trials;\n\n      if (trials != null) {\n\n        // loop through all the trials\n        for (var t = 0; t < trials.length; t++) {\n\n          var trial = trials[t];\n\n          if (trial != null) {\n            var series = trial.series;\n\n            // loop through all the series\n            for (var s = 0; s < series.length; s++) {\n\n              // get a single series\n              var singleSeries = series[s];\n\n              if (singleSeries != null) {\n\n                // get the data from the single series\n                var data = singleSeries.data;\n\n                if (data != null && data.length > 0) {\n                  // the single series has data\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return result;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n    let hasStudentWork = false;\n\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        if (studentData.version == 1) {\n          /*\n           * this is the old graph student data format where the\n           * student data can contain multiple series.\n           */\n\n           // check if any of the series has a data point\n           if (this.anySeriesHasDataPoint(studentData.series)) {\n\n             // at least one of the series has a data point\n             hasStudentWork = true;\n           }\n        } else {\n          /*\n           * this is the new graph student data format where the\n           * student data can contain multiple trials and each trial\n           * can contain multiple series.\n           */\n\n          // check if any of the trials has a data point\n          if (this.anyTrialHasDataPoint(studentData.trials)) {\n\n            /*\n             * at least one of the trials has a series that has a\n             * data point\n             */\n            hasStudentWork = true;\n          }\n        }\n      }\n\n      // check if the student has changed any of the axis limits\n      if (this.anyAxisLimitChanged(componentState, componentContent)) {\n        hasStudentWork = true;\n      }\n    }\n\n    return hasStudentWork;\n  }\n\n  /**\n   * Check if the student has changed any of the axis limits\n   * @param componentState the component state\n   * @param componentContent the component content\n   * @return whether the student has changed any of the axis limits\n   */\n  anyAxisLimitChanged(componentState, componentContent) {\n\n    if (componentState != null && componentState.studentData != null && componentContent != null) {\n\n      if (componentState.studentData.xAxis != null && componentContent.xAxis != null) {\n\n        if (componentState.studentData.xAxis.min != componentContent.xAxis.min) {\n          // the student has changed the x min\n          return true;\n        } else if (componentState.studentData.xAxis.max != componentContent.xAxis.max) {\n          // the student has changed the x max\n          return true;\n        }\n      }\n\n      if (componentState.studentData.yAxis != null && componentContent.yAxis != null) {\n\n        if (componentState.studentData.yAxis.min != componentContent.yAxis.min) {\n          // the student has changed the y min\n          return true;\n        } else if (componentState.studentData.yAxis.max != componentContent.yAxis.max) {\n          // the student has changed the y max\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if any of the trials contains a data point\n   * @param trials an array of trials\n   * @return whether any of the trials contains a data point\n   */\n  anyTrialHasDataPoint(trials) {\n    let hasDataPoint = false;\n\n    if (trials != null) {\n\n      // loop through all the trials\n      for (let t = 0; t < trials.length; t++) {\n        let trial = trials[t];\n\n        // check if the trial contains a data point\n        hasDataPoint = this.trialHasDataPoint(trial);\n\n        if (hasDataPoint) {\n          // the trial has a data point so we are done looking\n          break;\n        }\n      }\n    }\n\n    return hasDataPoint;\n  }\n\n  /**\n   * Check if a trial has a data point\n   * @param trial a trial object which can contain multiple series\n   * @return whether the trial contains a data point\n   */\n  trialHasDataPoint(trial) {\n    let hasDataPoint = false;\n\n    if (trial != null) {\n      let series = trial.series;\n\n      if (series != null) {\n\n        // loop through all the series\n        for (let s = 0; s < series.length; s++) {\n\n          let singleSeries = series[s];\n\n          if (singleSeries != null) {\n\n            // check if the series contains a data point\n            hasDataPoint = this.seriesHasDataPoint(singleSeries);\n\n            if (hasDataPoint) {\n              // the series has a data point so we are done looking\n              break;\n            }\n          }\n        }\n      }\n    }\n\n    return hasDataPoint;\n  }\n\n  /**\n   * Check if an array of series has any data point\n   * @param multipleSeries an array of series\n   * @return whether any of the series has a data point\n   */\n  anySeriesHasDataPoint(multipleSeries) {\n\n    let hasDataPoint = false;\n\n    if (multipleSeries != null) {\n\n      // loop through all the series\n      for (let s = 0; s < multipleSeries.length; s++) {\n        let singleSeries = multipleSeries[s];\n\n        if (singleSeries != null) {\n\n          // check if the series has a data point\n          hasDataPoint = this.seriesHasDataPoint(singleSeries);\n\n          if (hasDataPoint) {\n            // the series has a data point so we are done looking\n            break;\n          }\n        }\n      }\n    }\n\n    return hasDataPoint;\n  }\n\n  /**\n   * Check if a series has a data point\n   * @param singleSeries a series object\n   * @return whether the series object has any data points\n   */\n  seriesHasDataPoint(singleSeries) {\n    let hasDataPoint = false;\n\n    if (singleSeries != null) {\n\n      // get the data from the series\n      let data = singleSeries.data;\n\n      if (data.length > 0) {\n        // the series has a data point\n        hasDataPoint = true;\n      }\n    }\n\n    return hasDataPoint;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let componentId = componentState.componentId;\n    let highchartsDiv = angular.element('#chart_' + componentId).find('.highcharts-container');\n    if (highchartsDiv != null && highchartsDiv.length > 0) {\n      highchartsDiv = highchartsDiv[0];\n\n      // convert the div element to a canvas element\n      html2canvas(highchartsDiv).then((canvas) => {\n\n        // get the canvas as a base64 string\n        let img_b64 = canvas.toDataURL('image/png');\n\n        // get the image object\n        let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n        // add the image to the student assets\n        this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n          deferred.resolve(asset);\n        });\n      });\n    }\n    return deferred.promise;\n  }\n}\n\nGraphService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default GraphService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/html/htmlService.es6 b/src/main/webapp/wise5/components/html/htmlService.es6
index f2f70f7fdb..0ec07b427a 100644
--- a/src/main/webapp/wise5/components/html/htmlService.es6
+++ b/src/main/webapp/wise5/components/html/htmlService.es6
@@ -1,62 +1,21 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class HTMLService extends NodeService {
-  constructor($filter,
-      StudentDataService,
-      UtilService) {
-    super();
-    this.$filter = $filter;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-
-    this.$translate = this.$filter('translate');
+class HTMLService extends ComponentService {
+  constructor($filter, StudentDataService, UtilService) {
+    super($filter, StudentDataService, UtilService);
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "HTML"
-   */
   getComponentTypeLabel() {
     return this.$translate('html.componentTypeLabel');
   }
 
-  /**
-   * Create an HTML component object
-   * @returns a new HTML component object
-   */
   createComponent() {
-
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'HTML';
     component.html = this.$translate('html.enterHTMLHere');
-
-    return component;
-  }
-
-  /**
-   * Copies an existing HTML component object
-   * @returns a copied HTML component object
-   */
-  copyComponent(componentToCopy) {
-
-    var component = {};
-    component.id = this.UtilService.generateKey();
-    component.type = 'HTML';
-    component.html = componentToCopy.html;
-
     return component;
   }
 
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents) {
     var result = false;
 
@@ -78,29 +37,14 @@ class HTMLService extends NodeService {
     return result;
   }
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
   componentHasWork(component) {
     return false;
   }
 
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
   componentUsesSaveButton() {
     return false;
   }
 
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
   componentUsesSubmitButton() {
     return false;
   }
diff --git a/src/main/webapp/wise5/components/html/htmlService.js b/src/main/webapp/wise5/components/html/htmlService.js
index 4aede25338..35c278464a 100644
--- a/src/main/webapp/wise5/components/html/htmlService.js
+++ b/src/main/webapp/wise5/components/html/htmlService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,78 +20,28 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var HTMLService = function (_NodeService) {
-  _inherits(HTMLService, _NodeService);
+var HTMLService = function (_ComponentService) {
+  _inherits(HTMLService, _ComponentService);
 
   function HTMLService($filter, StudentDataService, UtilService) {
     _classCallCheck(this, HTMLService);
 
-    var _this = _possibleConstructorReturn(this, (HTMLService.__proto__ || Object.getPrototypeOf(HTMLService)).call(this));
-
-    _this.$filter = $filter;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-
-    _this.$translate = _this.$filter('translate');
-    return _this;
+    return _possibleConstructorReturn(this, (HTMLService.__proto__ || Object.getPrototypeOf(HTMLService)).call(this, $filter, StudentDataService, UtilService));
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "HTML"
-   */
-
-
   _createClass(HTMLService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('html.componentTypeLabel');
     }
-
-    /**
-     * Create an HTML component object
-     * @returns a new HTML component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(HTMLService.prototype.__proto__ || Object.getPrototypeOf(HTMLService.prototype), 'createComponent', this).call(this);
       component.type = 'HTML';
       component.html = this.$translate('html.enterHTMLHere');
-
       return component;
     }
-
-    /**
-     * Copies an existing HTML component object
-     * @returns a copied HTML component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-
-      var component = {};
-      component.id = this.UtilService.generateKey();
-      component.type = 'HTML';
-      component.html = componentToCopy.html;
-
-      return component;
-    }
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @returns whether the component was completed
-     */
-
   }, {
     key: 'isCompleted',
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents) {
@@ -112,37 +64,16 @@ var HTMLService = function (_NodeService) {
 
       return result;
     }
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-
   }, {
     key: 'componentHasWork',
     value: function componentHasWork(component) {
       return false;
     }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
   }, {
     key: 'componentUsesSaveButton',
     value: function componentUsesSaveButton() {
       return false;
     }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
   }, {
     key: 'componentUsesSubmitButton',
     value: function componentUsesSubmitButton() {
@@ -151,7 +82,7 @@ var HTMLService = function (_NodeService) {
   }]);
 
   return HTMLService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 HTMLService.$inject = ['$filter', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/html/htmlService.js.map b/src/main/webapp/wise5/components/html/htmlService.js.map
index 5597bb616f..64985c4b33 100644
--- a/src/main/webapp/wise5/components/html/htmlService.js.map
+++ b/src/main/webapp/wise5/components/html/htmlService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["htmlService.es6"],"names":["HTMLService","$filter","StudentDataService","UtilService","$translate","component","id","generateKey","type","html","componentToCopy","componentStates","componentEvents","nodeEvents","result","e","length","event","$inject"],"mappings":";;;;;;;;AAAA;;;;;;;;;;;;IAEMA,W;;;AACJ,uBAAYC,OAAZ,EACIC,kBADJ,EAEIC,WAFJ,EAEiB;AAAA;;AAAA;;AAEf,UAAKF,OAAL,GAAeA,OAAf;AACA,UAAKC,kBAAL,GAA0BA,kBAA1B;AACA,UAAKC,WAAL,GAAmBA,WAAnB;;AAEA,UAAKC,UAAL,GAAkB,MAAKH,OAAL,CAAa,WAAb,CAAlB;AANe;AAOhB;;AAED;;;;;;;;;4CAKwB;AACtB,aAAO,KAAKG,UAAL,CAAgB,yBAAhB,CAAP;AACD;;AAED;;;;;;;sCAIkB;;AAEhB,UAAIC,YAAY,EAAhB;AACAA,gBAAUC,EAAV,GAAe,KAAKH,WAAL,CAAiBI,WAAjB,EAAf;AACAF,gBAAUG,IAAV,GAAiB,MAAjB;AACAH,gBAAUI,IAAV,GAAiB,KAAKL,UAAL,CAAgB,oBAAhB,CAAjB;;AAEA,aAAOC,SAAP;AACD;;AAED;;;;;;;kCAIcK,e,EAAiB;;AAE7B,UAAIL,YAAY,EAAhB;AACAA,gBAAUC,EAAV,GAAe,KAAKH,WAAL,CAAiBI,WAAjB,EAAf;AACAF,gBAAUG,IAAV,GAAiB,MAAjB;AACAH,gBAAUI,IAAV,GAAiBC,gBAAgBD,IAAjC;;AAEA,aAAOJ,SAAP;AACD;;AAED;;;;;;;;;;;gCAQYA,S,EAAWM,e,EAAiBC,e,EAAiBC,U,EAAY;AACnE,UAAIC,SAAS,KAAb;;AAEA,UAAID,cAAc,IAAlB,EAAwB;;AAEtB;AACA,aAAK,IAAIE,IAAI,CAAb,EAAgBA,IAAIF,WAAWG,MAA/B,EAAuCD,GAAvC,EAA4C;;AAE1C;AACA,cAAIE,QAAQJ,WAAWE,CAAX,CAAZ;;AAEA,cAAIE,SAAS,IAAT,IAAiBA,MAAMA,KAAN,KAAgB,aAArC,EAAoD;AAClDH,qBAAS,IAAT;AACA;AACD;AACF;AACF;;AAED,aAAOA,MAAP;AACD;;AAED;;;;;;;;;;qCAOiBT,S,EAAW;AAC1B,aAAO,KAAP;AACD;;AAED;;;;;;;8CAI0B;AACxB,aAAO,KAAP;AACD;;AAED;;;;;;;gDAI4B;AAC1B,aAAO,KAAP;AACD;;;;;;AAGHL,YAAYkB,OAAZ,GAAsB,CACpB,SADoB,EAEpB,oBAFoB,EAGpB,aAHoB,CAAtB;;kBAMelB,W","file":"htmlService.js","sourcesContent":["import NodeService from '../../services/nodeService';\n\nclass HTMLService extends NodeService {\n  constructor($filter,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"HTML\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('html.componentTypeLabel');\n  }\n\n  /**\n   * Create an HTML component object\n   * @returns a new HTML component object\n   */\n  createComponent() {\n\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'HTML';\n    component.html = this.$translate('html.enterHTMLHere');\n\n    return component;\n  }\n\n  /**\n   * Copies an existing HTML component object\n   * @returns a copied HTML component object\n   */\n  copyComponent(componentToCopy) {\n\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'HTML';\n    component.html = componentToCopy.html;\n\n    return component;\n  }\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents) {\n    var result = false;\n\n    if (nodeEvents != null) {\n\n      // loop through all the events\n      for (var e = 0; e < nodeEvents.length; e++) {\n\n        // get an event\n        var event = nodeEvents[e];\n\n        if (event != null && event.event === 'nodeEntered') {\n          result = true;\n          break;\n        }\n      }\n    }\n\n    return result;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return false;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return false;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return false;\n  }\n}\n\nHTMLService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default HTMLService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["htmlService.es6"],"names":["HTMLService","$filter","StudentDataService","UtilService","$translate","component","type","html","componentStates","componentEvents","nodeEvents","result","e","length","event","$inject"],"mappings":";;;;;;;;;;AAAA;;;;;;;;;;;;IAEMA,W;;;AACJ,uBAAYC,OAAZ,EAAqBC,kBAArB,EAAyCC,WAAzC,EAAsD;AAAA;;AAAA,qHAC9CF,OAD8C,EACrCC,kBADqC,EACjBC,WADiB;AAErD;;;;4CAEuB;AACtB,aAAO,KAAKC,UAAL,CAAgB,yBAAhB,CAAP;AACD;;;sCAEiB;AAChB,UAAMC,qIAAN;AACAA,gBAAUC,IAAV,GAAiB,MAAjB;AACAD,gBAAUE,IAAV,GAAiB,KAAKH,UAAL,CAAgB,oBAAhB,CAAjB;AACA,aAAOC,SAAP;AACD;;;gCAEWA,S,EAAWG,e,EAAiBC,e,EAAiBC,U,EAAY;AACnE,UAAIC,SAAS,KAAb;;AAEA,UAAID,cAAc,IAAlB,EAAwB;;AAEtB;AACA,aAAK,IAAIE,IAAI,CAAb,EAAgBA,IAAIF,WAAWG,MAA/B,EAAuCD,GAAvC,EAA4C;;AAE1C;AACA,cAAIE,QAAQJ,WAAWE,CAAX,CAAZ;;AAEA,cAAIE,SAAS,IAAT,IAAiBA,MAAMA,KAAN,KAAgB,aAArC,EAAoD;AAClDH,qBAAS,IAAT;AACA;AACD;AACF;AACF;;AAED,aAAOA,MAAP;AACD;;;qCAEgBN,S,EAAW;AAC1B,aAAO,KAAP;AACD;;;8CAEyB;AACxB,aAAO,KAAP;AACD;;;gDAE2B;AAC1B,aAAO,KAAP;AACD;;;;;;AAGHL,YAAYe,OAAZ,GAAsB,CACpB,SADoB,EAEpB,oBAFoB,EAGpB,aAHoB,CAAtB;;kBAMef,W","file":"htmlService.js","sourcesContent":["import ComponentService from '../componentService';\n\nclass HTMLService extends ComponentService {\n  constructor($filter, StudentDataService, UtilService) {\n    super($filter, StudentDataService, UtilService);\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('html.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'HTML';\n    component.html = this.$translate('html.enterHTMLHere');\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents) {\n    var result = false;\n\n    if (nodeEvents != null) {\n\n      // loop through all the events\n      for (var e = 0; e < nodeEvents.length; e++) {\n\n        // get an event\n        var event = nodeEvents[e];\n\n        if (event != null && event.event === 'nodeEntered') {\n          result = true;\n          break;\n        }\n      }\n    }\n\n    return result;\n  }\n\n  componentHasWork(component) {\n    return false;\n  }\n\n  componentUsesSaveButton() {\n    return false;\n  }\n\n  componentUsesSubmitButton() {\n    return false;\n  }\n}\n\nHTMLService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default HTMLService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/label/labelService.es6 b/src/main/webapp/wise5/components/label/labelService.es6
index 67245e3fd8..55f8392502 100644
--- a/src/main/webapp/wise5/components/label/labelService.es6
+++ b/src/main/webapp/wise5/components/label/labelService.es6
@@ -1,41 +1,24 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class LabelService extends NodeService {
+class LabelService extends ComponentService {
 
   constructor($filter,
       $q,
       StudentAssetService,
       StudentDataService,
       UtilService) {
-    super();
-    this.$filter = $filter;
+    super($filter, StudentDataService, UtilService);
     this.$q = $q;
     this.StudentAssetService = StudentAssetService;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Label"
-   */
   getComponentTypeLabel() {
     return this.$translate('label.componentTypeLabel');
   }
 
-  /**
-   * Create a Label component object
-   * @returns a new Label component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'Label';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     component.backgroundImage = '';
     component.canCreateLabels = true;
     component.canEditLabels = true;
@@ -50,80 +33,6 @@ class LabelService extends NodeService {
     return component;
   }
 
-  /**
-   * Copies an existing Label component object
-   * @returns a copied Label component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.backgroundImage = componentToCopy.backgroundImage;
-    component.canCreateLabels = componentToCopy.canCreateLabels;
-    component.canEditLabels = componentToCopy.canEditLabels;
-    component.canDeleteLabels = componentToCopy.canDeleteLabels;
-    component.enableCircles = componentToCopy.enableCircles;
-    component.width = componentToCopy.width;
-    component.height = componentToCopy.height;
-    component.pointSize = componentToCopy.pointSize;
-    component.fontSize = componentToCopy.fontSize;
-    component.labelWidth = componentToCopy.labelWidth;
-    component.labels = [];
-    // go through the original labels and create new id's
-    if (componentToCopy.labels != null && componentToCopy.labels.length > 0) {
-      for (var l = 0; l < componentToCopy.labels.length; l++) {
-        var label = componentToCopy.labels[l];
-        label.id = this.UtilService.generateKey();  // generate a new id for this label.
-        component.labels.push(label);
-      }
-    }
-    return component;
-  }
-
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'Label') {
-        // the other component is an Label component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     var result = false;
     if (!this.canEdit(component) && this.UtilService.hasNodeEnteredEvent(nodeEvents)) {
@@ -180,42 +89,6 @@ class LabelService extends NodeService {
     return true;
   }
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
     if (componentState != null) {
       let studentData = componentState.studentData;
diff --git a/src/main/webapp/wise5/components/label/labelService.js b/src/main/webapp/wise5/components/label/labelService.js
index 4101dc1ddd..9c17804d84 100644
--- a/src/main/webapp/wise5/components/label/labelService.js
+++ b/src/main/webapp/wise5/components/label/labelService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,50 +20,29 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var LabelService = function (_NodeService) {
-  _inherits(LabelService, _NodeService);
+var LabelService = function (_ComponentService) {
+  _inherits(LabelService, _ComponentService);
 
   function LabelService($filter, $q, StudentAssetService, StudentDataService, UtilService) {
     _classCallCheck(this, LabelService);
 
-    var _this = _possibleConstructorReturn(this, (LabelService.__proto__ || Object.getPrototypeOf(LabelService)).call(this));
+    var _this = _possibleConstructorReturn(this, (LabelService.__proto__ || Object.getPrototypeOf(LabelService)).call(this, $filter, StudentDataService, UtilService));
 
-    _this.$filter = $filter;
     _this.$q = $q;
     _this.StudentAssetService = StudentAssetService;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
     return _this;
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Label"
-   */
-
-
   _createClass(LabelService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('label.componentTypeLabel');
     }
-
-    /**
-     * Create a Label component object
-     * @returns a new Label component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(LabelService.prototype.__proto__ || Object.getPrototypeOf(LabelService.prototype), 'createComponent', this).call(this);
       component.type = 'Label';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       component.backgroundImage = '';
       component.canCreateLabels = true;
       component.canEditLabels = true;
@@ -75,90 +56,8 @@ var LabelService = function (_NodeService) {
       component.labels = [];
       return component;
     }
-
-    /**
-     * Copies an existing Label component object
-     * @returns a copied Label component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.backgroundImage = componentToCopy.backgroundImage;
-      component.canCreateLabels = componentToCopy.canCreateLabels;
-      component.canEditLabels = componentToCopy.canEditLabels;
-      component.canDeleteLabels = componentToCopy.canDeleteLabels;
-      component.enableCircles = componentToCopy.enableCircles;
-      component.width = componentToCopy.width;
-      component.height = componentToCopy.height;
-      component.pointSize = componentToCopy.pointSize;
-      component.fontSize = componentToCopy.fontSize;
-      component.labelWidth = componentToCopy.labelWidth;
-      component.labels = [];
-      // go through the original labels and create new id's
-      if (componentToCopy.labels != null && componentToCopy.labels.length > 0) {
-        for (var l = 0; l < componentToCopy.labels.length; l++) {
-          var label = componentToCopy.labels[l];
-          label.id = this.UtilService.generateKey(); // generate a new id for this label.
-          component.labels.push(label);
-        }
-      }
-      return component;
-    }
-
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-
-  }, {
-    key: 'populateComponentState',
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'Label') {
-          // the other component is an Label component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       var result = false;
       if (!this.canEdit(component) && this.UtilService.hasNodeEnteredEvent(nodeEvents)) {
@@ -217,53 +116,6 @@ var LabelService = function (_NodeService) {
       }
       return true;
     }
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-
-  }, {
-    key: 'componentHasWork',
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -613,7 +465,7 @@ var LabelService = function (_NodeService) {
   }]);
 
   return LabelService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 LabelService.$inject = ['$filter', '$q', 'StudentAssetService', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/label/labelService.js.map b/src/main/webapp/wise5/components/label/labelService.js.map
index 969521cfab..b91879ccc7 100644
--- a/src/main/webapp/wise5/components/label/labelService.js.map
+++ b/src/main/webapp/wise5/components/label/labelService.js.map
@@ -1 +1 @@
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NodeService from '../../services/nodeService';\n\nclass LabelService extends NodeService {\n\n  constructor($filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Label\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('label.componentTypeLabel');\n  }\n\n  /**\n   * Create a Label component object\n   * @returns a new Label component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'Label';\n    component.prompt = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.backgroundImage = '';\n    component.canCreateLabels = true;\n    component.canEditLabels = true;\n    component.canDeleteLabels = true;\n    component.enableCircles = true;\n    component.width = 800;\n    component.height = 600;\n    component.pointSize = 5;\n    component.fontSize = 20;\n    component.labelWidth = 20;\n    component.labels = [];\n    return component;\n  }\n\n  /**\n   * Copies an existing Label component object\n   * @returns a copied Label component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.backgroundImage = componentToCopy.backgroundImage;\n    component.canCreateLabels = componentToCopy.canCreateLabels;\n    component.canEditLabels = componentToCopy.canEditLabels;\n    component.canDeleteLabels = componentToCopy.canDeleteLabels;\n    component.enableCircles = componentToCopy.enableCircles;\n    component.width = componentToCopy.width;\n    component.height = componentToCopy.height;\n    component.pointSize = componentToCopy.pointSize;\n    component.fontSize = componentToCopy.fontSize;\n    component.labelWidth = componentToCopy.labelWidth;\n    component.labels = [];\n    // go through the original labels and create new id's\n    if (componentToCopy.labels != null && componentToCopy.labels.length > 0) {\n      for (var l = 0; l < componentToCopy.labels.length; l++) {\n        var label = componentToCopy.labels[l];\n        label.id = this.UtilService.generateKey();  // generate a new id for this label.\n        component.labels.push(label);\n      }\n    }\n    return component;\n  }\n\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'Label') {\n        // the other component is an Label component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    var result = false;\n    if (!this.canEdit(component) && this.UtilService.hasNodeEnteredEvent(nodeEvents)) {\n      /*\n       * the student can't perform any work on this component and has visited\n       * this step so we will mark it as completed\n       */\n      return true;\n    }\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.labels && state.studentData.labels.length) {\n              // there are labels so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.labels && studentData.labels.length) {\n            // there are labels so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Determine if the student can perform any work on this component.\n   * @param component The component content.\n   * @return Whether the student can perform any work on this component.\n   */\n  canEdit(component) {\n    if (this.UtilService.hasShowWorkConnectedComponent(component)) {\n      return false;\n    }\n    return true;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        // get the labels from the student data\n        let labels = studentData.labels;\n\n        if (componentContent == null) {\n          // the component content was not provided\n          if (labels != null && labels.length > 0) {\n            // the student has work\n            return true;\n          }\n        } else {\n          // the component content was provided\n          let starterLabels = componentContent.labels;\n          if (starterLabels == null || starterLabels.length == 0) {\n            // there are no starter labels\n            if (labels != null && labels.length > 0) {\n              // the student has work\n              return true;\n            }\n          } else {\n            /*\n             * there are starter labels so we will compare it\n             * with the student labels\n             */\n            if (!this.labelArraysAreTheSame(labels, starterLabels)) {\n              /*\n               * the student has a response that is different than\n               * the starter sentence\n               */\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if the component state has the exact same labels as the starter\n   * labels.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has the exact same labels as the\n   * starter labels\n   */\n  componentStateIsSameAsStarter(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n\n      // get the labels from the student data\n      let labels = studentData.labels;\n      let starterLabels = componentContent.labels;\n      if (starterLabels == null || starterLabels.length == 0) {\n        // there are no starter labels\n        if (labels.length == 0) {\n          // the student work doesn't have any labels either\n          return true;\n        } else if (labels != null && labels.length > 0) {\n          // the student has labels\n          return false;\n        }\n      } else {\n        // there are starter labels so we will compare it with the student labels\n        if (this.labelArraysAreTheSame(labels, starterLabels)) {\n          // the student labels are the same as the starter labels\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if the two arrays of labels contain the same values\n   * @param labels1 an array of label objects\n   * @param labels2 an array of label objects\n   * @return whether the labels contain the same values\n   */\n  labelArraysAreTheSame(labels1, labels2) {\n    if (labels1 == null && labels2 == null) {\n      return true;\n    } else if ((labels1 == null && labels2 != null) ||\n           (labels1 != null && labels2 == null)) {\n      return false;\n    } else {\n      if (labels1.length != labels2.length) {\n        return false;\n      } else {\n        for (let l = 0; l < labels1.length; l++) {\n          let label1 = labels1[l];\n          let label2 = labels2[l];\n          if (!this.labelsAreTheSame(label1, label2)) {\n            return false;\n          }\n        }\n      }\n    }\n\n    return true;\n  }\n\n  /**\n   * Check if two labels contain the same values\n   * @param label1 a label object\n   * @param label2 a label object\n   * @return whether the labels contain the same values\n   */\n  labelsAreTheSame(label1, label2) {\n    if (label1 == null && label2 == null) {\n      return true;\n    } else if ((label1 == null && label2 != null) ||\n        (label1 != null && label2 == null)) {\n      return false;\n    } else {\n      if ((label1.text != label2.text) ||\n        (label1.pointX != label2.pointX) ||\n        (label1.pointY != label2.pointY) ||\n        (label1.textX != label2.textX) ||\n        (label1.textY != label2.textY) ||\n        (label1.color != label2.color)) {\n        // at least one of the fields are different\n        return false\n      }\n    }\n\n    return true;\n  }\n\n  /**\n   * Create an image from the text string.\n   * @param text A text string.\n   * @param width The width of the image we will create.\n   * @param height The height of the image we will create.\n   * @param maxCharactersPerLine The max number of characters per line.\n   * @param xPositionOfText The x position of the text in the image.\n   * @param spaceInbetweenLines The amount of space inbetween each line.\n   * @param fontSize The font size.\n   */\n  createImageFromText(text, width, height, maxCharactersPerLine,\n      xPositionOfText, spaceInbetweenLines, fontSize) {\n\n    if (width == null || width == '') {\n      width = 800;\n    }\n\n    if (height == null || height == '') {\n      height = 600;\n    }\n\n    if (maxCharactersPerLine == null || maxCharactersPerLine == '') {\n      maxCharactersPerLine = 100;\n    }\n\n    if (xPositionOfText == null || xPositionOfText == '') {\n      xPositionOfText = 10;\n    }\n\n    if (spaceInbetweenLines == null || spaceInbetweenLines == '') {\n      spaceInbetweenLines = 40;\n    }\n\n    if (fontSize == null || fontSize == '') {\n      fontSize = 16;\n    }\n\n    /*\n     * Line wrap the text so that each line does not exceed the max number of\n     * characters.\n     */\n    let textWrapped = this.UtilService.wordWrap(text, maxCharactersPerLine);\n\n    // create a promise that will return an image of the concept map\n    var deferred = this.$q.defer();\n\n    // create a div to draw the SVG in\n    var svgElement = document.createElement('div');\n\n    var draw = SVG(svgElement);\n    draw.width(width);\n    draw.height(height);\n\n    /*\n     * We will create a tspan for each line.\n     * Example\n     * <tspan x=\"10\" dy=\"40\">The quick brown fox jumps over the lazy dog. One fish, two fish, red fish, blue fish. Green eggs</tspan>\n     * <tspan x=\"10\" dy=\"40\">and ham.</tspan>\n     */\n    let tspans = '';\n    let textLines = textWrapped.split('\\n');\n    for (let textLine of textLines) {\n      tspans += '<tspan x=\"' + xPositionOfText + '\" dy=\"' + spaceInbetweenLines + '\">' + textLine + '</tspan>';\n    }\n\n    /*\n     * Wrap the tspans in a text element.\n     * Example\n     * <text id=\"SvgjsText1008\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\">\n     *   <tspan x=\"10\" dy=\"40\">The quick brown fox jumps over the lazy dog. One fish, two fish, red fish, blue fish. Green eggs</tspan>\n     *   <tspan x=\"10\" dy=\"40\">and ham.</tspan>\n     * </text>\n     */\n    let svgTextElementString = '<text id=\"SvgjsText1008\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"' + fontSize + '\">' + tspans + '</text>';\n\n    /*\n     * Insert the text element into the svg.\n     * Example\n     * <svg id=\"SvgjsSvg1010\" width=\"800\" height=\"600\" xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:svgjs=\"http://svgjs.com/svgjs\">\n     *   <defs id=\"SvgjsDefs1011\"></defs>\n     *   <text id=\"SvgjsText1008\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\">\n     *     <tspan x=\"10\" dy=\"40\">The quick brown fox jumps over the lazy dog. One fish, two fish, red fish, blue fish. Green eggs</tspan>\n     *     <tspan x=\"10\" dy=\"40\">and ham.</tspan>\n     *   </text>\n     * </svg>\n     */\n    var svgString = svgElement.innerHTML;\n    svgString = svgString.replace('</svg>', svgTextElementString + '</svg>');\n\n    // create a canvas to draw the image on\n    var myCanvas = document.createElement('canvas');\n    var ctx = myCanvas.getContext('2d');\n\n    // create an svg blob\n    var svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n    var domURL = self.URL || self.webkitURL || self;\n    var url = domURL.createObjectURL(svg);\n    var image = new Image;\n\n    /*\n     * set the UtilService in a local variable so we can access it\n     * in the onload callback function\n     */\n    var thisUtilService = this.UtilService;\n\n    // the function that is called after the image is fully loaded\n    image.onload = (event) => {\n\n      // get the image that was loaded\n      var image = event.target;\n\n      // set the dimensions of the canvas\n      myCanvas.width = image.width;\n      myCanvas.height = image.height;\n      ctx.drawImage(image, 0, 0);\n\n      // get the canvas as a Base64 string\n      var base64Image = myCanvas.toDataURL('image/png');\n\n      // get the image object\n      var imageObject = thisUtilService.getImageObjectFromBase64String(base64Image);\n\n      // create a student asset image\n      this.StudentAssetService.uploadAsset(imageObject).then((unreferencedAsset) => {\n\n        /*\n         * make a copy of the unreferenced asset so that we\n         * get a referenced asset\n         */\n        this.StudentAssetService.copyAssetForReference(unreferencedAsset).then((referencedAsset) => {\n          if (referencedAsset != null) {\n            /*\n             * get the asset url\n             * for example\n             * /wise/studentuploads/11261/297478/referenced/picture_1494016652542.png\n             * if we are in preview mode this url will be a base64 string instead\n             */\n            var referencedAssetUrl = referencedAsset.url;\n\n            // remove the unreferenced asset\n            this.StudentAssetService.deleteAsset(unreferencedAsset);\n\n            // resolve the promise with the image url\n            deferred.resolve(referencedAssetUrl);\n          }\n        });\n      });\n    };\n\n    // set the src of the image so that the image gets loaded\n    image.src = url;\n\n    return deferred.promise;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let canvas = angular.element('#canvas_' + componentState.nodeId + '_' + componentState.componentId);\n    if (canvas != null && canvas.length > 0) {\n      canvas = canvas[0];\n\n      // get the canvas as a base64 string\n      let img_b64 = canvas.toDataURL('image/png');\n\n      // get the image object\n      let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n      // add the image to the student assets\n      this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n        deferred.resolve(asset);\n      });\n    }\n    return deferred.promise;\n  }\n}\n\nLabelService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default LabelService;\n"]}
\ No newline at end of file
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ComponentService from '../componentService';\n\nclass LabelService extends ComponentService {\n\n  constructor($filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super($filter, StudentDataService, UtilService);\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('label.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'Label';\n    component.backgroundImage = '';\n    component.canCreateLabels = true;\n    component.canEditLabels = true;\n    component.canDeleteLabels = true;\n    component.enableCircles = true;\n    component.width = 800;\n    component.height = 600;\n    component.pointSize = 5;\n    component.fontSize = 20;\n    component.labelWidth = 20;\n    component.labels = [];\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    var result = false;\n    if (!this.canEdit(component) && this.UtilService.hasNodeEnteredEvent(nodeEvents)) {\n      /*\n       * the student can't perform any work on this component and has visited\n       * this step so we will mark it as completed\n       */\n      return true;\n    }\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.labels && state.studentData.labels.length) {\n              // there are labels so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.labels && studentData.labels.length) {\n            // there are labels so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Determine if the student can perform any work on this component.\n   * @param component The component content.\n   * @return Whether the student can perform any work on this component.\n   */\n  canEdit(component) {\n    if (this.UtilService.hasShowWorkConnectedComponent(component)) {\n      return false;\n    }\n    return true;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        // get the labels from the student data\n        let labels = studentData.labels;\n\n        if (componentContent == null) {\n          // the component content was not provided\n          if (labels != null && labels.length > 0) {\n            // the student has work\n            return true;\n          }\n        } else {\n          // the component content was provided\n          let starterLabels = componentContent.labels;\n          if (starterLabels == null || starterLabels.length == 0) {\n            // there are no starter labels\n            if (labels != null && labels.length > 0) {\n              // the student has work\n              return true;\n            }\n          } else {\n            /*\n             * there are starter labels so we will compare it\n             * with the student labels\n             */\n            if (!this.labelArraysAreTheSame(labels, starterLabels)) {\n              /*\n               * the student has a response that is different than\n               * the starter sentence\n               */\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if the component state has the exact same labels as the starter\n   * labels.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has the exact same labels as the\n   * starter labels\n   */\n  componentStateIsSameAsStarter(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n\n      // get the labels from the student data\n      let labels = studentData.labels;\n      let starterLabels = componentContent.labels;\n      if (starterLabels == null || starterLabels.length == 0) {\n        // there are no starter labels\n        if (labels.length == 0) {\n          // the student work doesn't have any labels either\n          return true;\n        } else if (labels != null && labels.length > 0) {\n          // the student has labels\n          return false;\n        }\n      } else {\n        // there are starter labels so we will compare it with the student labels\n        if (this.labelArraysAreTheSame(labels, starterLabels)) {\n          // the student labels are the same as the starter labels\n          return true;\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if the two arrays of labels contain the same values\n   * @param labels1 an array of label objects\n   * @param labels2 an array of label objects\n   * @return whether the labels contain the same values\n   */\n  labelArraysAreTheSame(labels1, labels2) {\n    if (labels1 == null && labels2 == null) {\n      return true;\n    } else if ((labels1 == null && labels2 != null) ||\n           (labels1 != null && labels2 == null)) {\n      return false;\n    } else {\n      if (labels1.length != labels2.length) {\n        return false;\n      } else {\n        for (let l = 0; l < labels1.length; l++) {\n          let label1 = labels1[l];\n          let label2 = labels2[l];\n          if (!this.labelsAreTheSame(label1, label2)) {\n            return false;\n          }\n        }\n      }\n    }\n\n    return true;\n  }\n\n  /**\n   * Check if two labels contain the same values\n   * @param label1 a label object\n   * @param label2 a label object\n   * @return whether the labels contain the same values\n   */\n  labelsAreTheSame(label1, label2) {\n    if (label1 == null && label2 == null) {\n      return true;\n    } else if ((label1 == null && label2 != null) ||\n        (label1 != null && label2 == null)) {\n      return false;\n    } else {\n      if ((label1.text != label2.text) ||\n        (label1.pointX != label2.pointX) ||\n        (label1.pointY != label2.pointY) ||\n        (label1.textX != label2.textX) ||\n        (label1.textY != label2.textY) ||\n        (label1.color != label2.color)) {\n        // at least one of the fields are different\n        return false\n      }\n    }\n\n    return true;\n  }\n\n  /**\n   * Create an image from the text string.\n   * @param text A text string.\n   * @param width The width of the image we will create.\n   * @param height The height of the image we will create.\n   * @param maxCharactersPerLine The max number of characters per line.\n   * @param xPositionOfText The x position of the text in the image.\n   * @param spaceInbetweenLines The amount of space inbetween each line.\n   * @param fontSize The font size.\n   */\n  createImageFromText(text, width, height, maxCharactersPerLine,\n      xPositionOfText, spaceInbetweenLines, fontSize) {\n\n    if (width == null || width == '') {\n      width = 800;\n    }\n\n    if (height == null || height == '') {\n      height = 600;\n    }\n\n    if (maxCharactersPerLine == null || maxCharactersPerLine == '') {\n      maxCharactersPerLine = 100;\n    }\n\n    if (xPositionOfText == null || xPositionOfText == '') {\n      xPositionOfText = 10;\n    }\n\n    if (spaceInbetweenLines == null || spaceInbetweenLines == '') {\n      spaceInbetweenLines = 40;\n    }\n\n    if (fontSize == null || fontSize == '') {\n      fontSize = 16;\n    }\n\n    /*\n     * Line wrap the text so that each line does not exceed the max number of\n     * characters.\n     */\n    let textWrapped = this.UtilService.wordWrap(text, maxCharactersPerLine);\n\n    // create a promise that will return an image of the concept map\n    var deferred = this.$q.defer();\n\n    // create a div to draw the SVG in\n    var svgElement = document.createElement('div');\n\n    var draw = SVG(svgElement);\n    draw.width(width);\n    draw.height(height);\n\n    /*\n     * We will create a tspan for each line.\n     * Example\n     * <tspan x=\"10\" dy=\"40\">The quick brown fox jumps over the lazy dog. One fish, two fish, red fish, blue fish. Green eggs</tspan>\n     * <tspan x=\"10\" dy=\"40\">and ham.</tspan>\n     */\n    let tspans = '';\n    let textLines = textWrapped.split('\\n');\n    for (let textLine of textLines) {\n      tspans += '<tspan x=\"' + xPositionOfText + '\" dy=\"' + spaceInbetweenLines + '\">' + textLine + '</tspan>';\n    }\n\n    /*\n     * Wrap the tspans in a text element.\n     * Example\n     * <text id=\"SvgjsText1008\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\">\n     *   <tspan x=\"10\" dy=\"40\">The quick brown fox jumps over the lazy dog. One fish, two fish, red fish, blue fish. Green eggs</tspan>\n     *   <tspan x=\"10\" dy=\"40\">and ham.</tspan>\n     * </text>\n     */\n    let svgTextElementString = '<text id=\"SvgjsText1008\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"' + fontSize + '\">' + tspans + '</text>';\n\n    /*\n     * Insert the text element into the svg.\n     * Example\n     * <svg id=\"SvgjsSvg1010\" width=\"800\" height=\"600\" xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:svgjs=\"http://svgjs.com/svgjs\">\n     *   <defs id=\"SvgjsDefs1011\"></defs>\n     *   <text id=\"SvgjsText1008\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"16\">\n     *     <tspan x=\"10\" dy=\"40\">The quick brown fox jumps over the lazy dog. One fish, two fish, red fish, blue fish. Green eggs</tspan>\n     *     <tspan x=\"10\" dy=\"40\">and ham.</tspan>\n     *   </text>\n     * </svg>\n     */\n    var svgString = svgElement.innerHTML;\n    svgString = svgString.replace('</svg>', svgTextElementString + '</svg>');\n\n    // create a canvas to draw the image on\n    var myCanvas = document.createElement('canvas');\n    var ctx = myCanvas.getContext('2d');\n\n    // create an svg blob\n    var svg = new Blob([svgString], {type:'image/svg+xml;charset=utf-8'});\n    var domURL = self.URL || self.webkitURL || self;\n    var url = domURL.createObjectURL(svg);\n    var image = new Image;\n\n    /*\n     * set the UtilService in a local variable so we can access it\n     * in the onload callback function\n     */\n    var thisUtilService = this.UtilService;\n\n    // the function that is called after the image is fully loaded\n    image.onload = (event) => {\n\n      // get the image that was loaded\n      var image = event.target;\n\n      // set the dimensions of the canvas\n      myCanvas.width = image.width;\n      myCanvas.height = image.height;\n      ctx.drawImage(image, 0, 0);\n\n      // get the canvas as a Base64 string\n      var base64Image = myCanvas.toDataURL('image/png');\n\n      // get the image object\n      var imageObject = thisUtilService.getImageObjectFromBase64String(base64Image);\n\n      // create a student asset image\n      this.StudentAssetService.uploadAsset(imageObject).then((unreferencedAsset) => {\n\n        /*\n         * make a copy of the unreferenced asset so that we\n         * get a referenced asset\n         */\n        this.StudentAssetService.copyAssetForReference(unreferencedAsset).then((referencedAsset) => {\n          if (referencedAsset != null) {\n            /*\n             * get the asset url\n             * for example\n             * /wise/studentuploads/11261/297478/referenced/picture_1494016652542.png\n             * if we are in preview mode this url will be a base64 string instead\n             */\n            var referencedAssetUrl = referencedAsset.url;\n\n            // remove the unreferenced asset\n            this.StudentAssetService.deleteAsset(unreferencedAsset);\n\n            // resolve the promise with the image url\n            deferred.resolve(referencedAssetUrl);\n          }\n        });\n      });\n    };\n\n    // set the src of the image so that the image gets loaded\n    image.src = url;\n\n    return deferred.promise;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let canvas = angular.element('#canvas_' + componentState.nodeId + '_' + componentState.componentId);\n    if (canvas != null && canvas.length > 0) {\n      canvas = canvas[0];\n\n      // get the canvas as a base64 string\n      let img_b64 = canvas.toDataURL('image/png');\n\n      // get the image object\n      let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n      // add the image to the student assets\n      this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n        deferred.resolve(asset);\n      });\n    }\n    return deferred.promise;\n  }\n}\n\nLabelService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default LabelService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/match/matchService.es6 b/src/main/webapp/wise5/components/match/matchService.es6
index fd873cf222..65d3062653 100644
--- a/src/main/webapp/wise5/components/match/matchService.es6
+++ b/src/main/webapp/wise5/components/match/matchService.es6
@@ -1,37 +1,17 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class MatchService extends NodeService {
-  constructor($filter,
-      StudentDataService,
-      UtilService) {
-    super();
-    this.$filter = $filter;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
+class MatchService extends ComponentService {
+  constructor($filter, StudentDataService, UtilService) {
+    super($filter, StudentDataService, UtilService);
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Match"
-   */
   getComponentTypeLabel() {
     return this.$translate('match.componentTypeLabel');
   }
 
-  /**
-   * Create a Match component object
-   * @returns a new Match component object
-   */
   createComponent() {
-
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'Match';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     component.choices = [];
     component.buckets = [];
     component.feedback = [
@@ -41,113 +21,9 @@ class MatchService extends NodeService {
       }
     ];
     component.ordered = false;
-
     return component;
   }
 
-  /**
-   * Copies an existing Match component object
-   * @returns a copied Match component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.feedback = componentToCopy.feedback;  // Copy the feedback as-is. We'll update the id's below.
-    component.choices = [];
-    // go through the original choices and create new id's
-    if (componentToCopy.choices != null && componentToCopy.choices.length > 0) {
-      for (var c = 0; c < componentToCopy.choices.length; c++) {
-        var choice = componentToCopy.choices[c];
-        var oldChoiceId = choice.id;
-        var newChoiceId = this.UtilService.generateKey();  // generate a new id for this choice.
-        choice.id = newChoiceId;  // update the choice.
-        component.choices.push(choice);
-        // Also update any matching choice in the feedback.
-        if (component.feedback != null && component.feedback.length > 0) {
-          for (var f = 0; f < component.feedback.length; f++) {
-            var feedback = component.feedback[f];
-            if (feedback.choices != null && feedback.choices.length > 0) {
-              for (var fc = 0; fc < feedback.choices.length; fc++) {
-                var feedbackChoice = feedback.choices[fc];
-                if (feedbackChoice.choiceId === oldChoiceId) {
-                  feedbackChoice.choiceId = newChoiceId;
-                }
-              }
-            }
-          }
-        }
-      }
-    }
-
-    component.buckets = [];
-    // go through the original buckets and create new id's
-    if (componentToCopy.buckets != null && componentToCopy.buckets.length > 0) {
-      for (var b = 0; b < componentToCopy.buckets.length; b++) {
-        var bucket = componentToCopy.buckets[b];
-        var oldBucketId = bucket.id;
-        var newBucketId = this.UtilService.generateKey();  // generate a new id for this bucket.
-        bucket.id = newBucketId;  // update the bucket's id
-        component.buckets.push(bucket);
-        // Also update any matching bucket in the feedback.
-        if (component.feedback != null && component.feedback.length > 0) {
-          for (var f = 0; f < component.feedback.length; f++) {
-            var feedback = component.feedback[f];
-            if (feedback.bucketId === oldBucketId) {
-              feedback.bucketId = newBucketId;
-            }
-          }
-        }
-      }
-    }
-    component.ordered = false;
-    return component;
-  }
-
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'Match') {
-        // the other component is an Match component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     var result = false;
 
@@ -182,46 +58,9 @@ class MatchService extends NodeService {
         }
       }
     }
-
     return result;
   };
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
     if (componentState != null) {
       let studentData = componentState.studentData;
@@ -240,7 +79,6 @@ class MatchService extends NodeService {
         }
       }
     }
-
     return false;
   }
 
diff --git a/src/main/webapp/wise5/components/match/matchService.js b/src/main/webapp/wise5/components/match/matchService.js
index 4826bf2b5d..c4ed3afe00 100644
--- a/src/main/webapp/wise5/components/match/matchService.js
+++ b/src/main/webapp/wise5/components/match/matchService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,49 +20,25 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var MatchService = function (_NodeService) {
-  _inherits(MatchService, _NodeService);
+var MatchService = function (_ComponentService) {
+  _inherits(MatchService, _ComponentService);
 
   function MatchService($filter, StudentDataService, UtilService) {
     _classCallCheck(this, MatchService);
 
-    var _this = _possibleConstructorReturn(this, (MatchService.__proto__ || Object.getPrototypeOf(MatchService)).call(this));
-
-    _this.$filter = $filter;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
-    return _this;
+    return _possibleConstructorReturn(this, (MatchService.__proto__ || Object.getPrototypeOf(MatchService)).call(this, $filter, StudentDataService, UtilService));
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Match"
-   */
-
-
   _createClass(MatchService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('match.componentTypeLabel');
     }
-
-    /**
-     * Create a Match component object
-     * @returns a new Match component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(MatchService.prototype.__proto__ || Object.getPrototypeOf(MatchService.prototype), 'createComponent', this).call(this);
       component.type = 'Match';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       component.choices = [];
       component.buckets = [];
       component.feedback = [{
@@ -68,122 +46,10 @@ var MatchService = function (_NodeService) {
         'choices': []
       }];
       component.ordered = false;
-
-      return component;
-    }
-
-    /**
-     * Copies an existing Match component object
-     * @returns a copied Match component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.feedback = componentToCopy.feedback; // Copy the feedback as-is. We'll update the id's below.
-      component.choices = [];
-      // go through the original choices and create new id's
-      if (componentToCopy.choices != null && componentToCopy.choices.length > 0) {
-        for (var c = 0; c < componentToCopy.choices.length; c++) {
-          var choice = componentToCopy.choices[c];
-          var oldChoiceId = choice.id;
-          var newChoiceId = this.UtilService.generateKey(); // generate a new id for this choice.
-          choice.id = newChoiceId; // update the choice.
-          component.choices.push(choice);
-          // Also update any matching choice in the feedback.
-          if (component.feedback != null && component.feedback.length > 0) {
-            for (var f = 0; f < component.feedback.length; f++) {
-              var feedback = component.feedback[f];
-              if (feedback.choices != null && feedback.choices.length > 0) {
-                for (var fc = 0; fc < feedback.choices.length; fc++) {
-                  var feedbackChoice = feedback.choices[fc];
-                  if (feedbackChoice.choiceId === oldChoiceId) {
-                    feedbackChoice.choiceId = newChoiceId;
-                  }
-                }
-              }
-            }
-          }
-        }
-      }
-
-      component.buckets = [];
-      // go through the original buckets and create new id's
-      if (componentToCopy.buckets != null && componentToCopy.buckets.length > 0) {
-        for (var b = 0; b < componentToCopy.buckets.length; b++) {
-          var bucket = componentToCopy.buckets[b];
-          var oldBucketId = bucket.id;
-          var newBucketId = this.UtilService.generateKey(); // generate a new id for this bucket.
-          bucket.id = newBucketId; // update the bucket's id
-          component.buckets.push(bucket);
-          // Also update any matching bucket in the feedback.
-          if (component.feedback != null && component.feedback.length > 0) {
-            for (var f = 0; f < component.feedback.length; f++) {
-              var feedback = component.feedback[f];
-              if (feedback.bucketId === oldBucketId) {
-                feedback.bucketId = newBucketId;
-              }
-            }
-          }
-        }
-      }
-      component.ordered = false;
       return component;
     }
-
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-
-  }, {
-    key: 'populateComponentState',
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'Match') {
-          // the other component is an Match component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       var result = false;
 
@@ -218,56 +84,8 @@ var MatchService = function (_NodeService) {
           }
         }
       }
-
       return result;
     }
-  }, {
-    key: 'componentHasWork',
-
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -288,7 +106,6 @@ var MatchService = function (_NodeService) {
           }
         }
       }
-
       return false;
     }
 
@@ -356,7 +173,7 @@ var MatchService = function (_NodeService) {
   }]);
 
   return MatchService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 MatchService.$inject = ['$filter', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/match/matchService.js.map b/src/main/webapp/wise5/components/match/matchService.js.map
index 806657bd2c..3f5352dc86 100644
--- a/src/main/webapp/wise5/components/match/matchService.js.map
+++ b/src/main/webapp/wise5/components/match/matchService.js.map
@@ -1 +1 @@
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'choices': []\n      }\n    ];\n    component.ordered = false;\n\n    return component;\n  }\n\n  /**\n   * Copies an existing Match component object\n   * @returns a copied Match component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.feedback = componentToCopy.feedback;  // Copy the feedback as-is. 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b < componentToCopy.buckets.length; b++) {\n        var bucket = componentToCopy.buckets[b];\n        var oldBucketId = bucket.id;\n        var newBucketId = this.UtilService.generateKey();  // generate a new id for this bucket.\n        bucket.id = newBucketId;  // update the bucket's id\n        component.buckets.push(bucket);\n        // Also update any matching bucket in the feedback.\n        if (component.feedback != null && component.feedback.length > 0) {\n          for (var f = 0; f < component.feedback.length; f++) {\n            var feedback = component.feedback[f];\n            if (feedback.bucketId === oldBucketId) {\n              feedback.bucketId = newBucketId;\n            }\n          }\n        }\n      }\n    }\n    component.ordered = false;\n    return component;\n  }\n\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'Match') {\n        // the other component is an Match component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    var result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      // loop through all the component states\n      for (var c = 0; c < componentStates.length; c++) {\n\n        // the component state\n        var componentState = componentStates[c];\n\n        // get the student data from the component state\n        var studentData = componentState.studentData;\n\n        if (studentData != null) {\n          var buckets = studentData.buckets;\n\n          if (buckets && buckets.length) {\n            // there is a bucket, so the student has saved work\n            if (submitRequired) {\n              // completion requires a submission, so check for isSubmit\n              if (componentState.isSubmit) {\n                result = true;\n                break;\n              }\n            } else {\n              result = true;\n              break;\n            }\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        let buckets = studentData.buckets;\n        if (buckets != null) {\n          for (let b = 0; b < buckets.length; b++) {\n            let bucket = buckets[b];\n            if (bucket != null) {\n              let items = bucket.items;\n              if (items != null && items.length > 0) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if a the component has a correct answer.\n   * @param component The component content object.\n   * @return Whether the component has a correct answer.\n   */\n  hasCorrectAnswer(component) {\n    if (component != null) {\n      for (let bucket of component.feedback) {\n        for (let choice of bucket.choices) {\n          if (choice.isCorrect) {\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n}\n\nMatchService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default MatchService;\n"]}
\ No newline at end of file
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c < componentStates.length; c++) {\n\n        // the component state\n        var componentState = componentStates[c];\n\n        // get the student data from the component state\n        var studentData = componentState.studentData;\n\n        if (studentData != null) {\n          var buckets = studentData.buckets;\n\n          if (buckets && buckets.length) {\n            // there is a bucket, so the student has saved work\n            if (submitRequired) {\n              // completion requires a submission, so check for isSubmit\n              if (componentState.isSubmit) {\n                result = true;\n                break;\n              }\n            } else {\n              result = true;\n              break;\n            }\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        let buckets = studentData.buckets;\n        if (buckets != null) {\n          for (let b = 0; b < buckets.length; b++) {\n            let bucket = buckets[b];\n            if (bucket != null) {\n              let items = bucket.items;\n              if (items != null && items.length > 0) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if a the component has a correct answer.\n   * @param component The component content object.\n   * @return Whether the component has a correct answer.\n   */\n  hasCorrectAnswer(component) {\n    if (component != null) {\n      for (let bucket of component.feedback) {\n        for (let choice of bucket.choices) {\n          if (choice.isCorrect) {\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n}\n\nMatchService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default MatchService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.es6 b/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.es6
index 01b820d96c..45c4e1d91c 100644
--- a/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.es6
+++ b/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.es6
@@ -1,64 +1,23 @@
-import NodeService from '../../services/nodeService';
-
-class MultipleChoiceService extends NodeService {
-  constructor($filter,
-      StudentDataService,
-      UtilService) {
-    super();
-    this.$filter = $filter;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
+import ComponentService from '../componentService';
+
+class MultipleChoiceService extends ComponentService {
+  constructor($filter, StudentDataService, UtilService) {
+    super($filter, StudentDataService, UtilService);
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Multiple Choice"
-   */
   getComponentTypeLabel() {
     return this.$translate('multipleChoice.componentTypeLabel');
   }
 
-  /**
-   * Create a MultipleChoice component object
-   * @returns a new MultipleChoice component object
-   */
   createComponent() {
-    let component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'MultipleChoice';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     component.choiceType = 'radio';
     component.choices = [];
     component.showFeedback = true;
     return component;
   }
 
-  /**
-   * Copies an existing MultipleChoice component object
-   * @returns a copied MultipleChoice component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.choiceType = componentToCopy.choiceType;
-    component.choices = [];
-    // go through the original choices and create new id's
-    if (componentToCopy.choices != null && componentToCopy.choices.length > 0) {
-      for (var c = 0; c < componentToCopy.choices.length; c++) {
-        var choice = componentToCopy.choices[c];
-        choice.id = this.UtilService.generateKey();  // generate a new id for this choice.
-        component.choices.push(choice);
-      }
-    }
-    return component;
-  }
-
   /**
    * Returns all possible criteria for this component.
    * @param component a MultipleChoice component
@@ -196,49 +155,6 @@ class MultipleChoiceService extends NodeService {
     return choiceIds;
   };
 
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    let componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      let otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'MultipleChoice') {
-        // the other component is an MultipleChoice component
-
-        // get the student data from the other component state
-        let studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        let studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     let result = false;
 
@@ -277,17 +193,6 @@ class MultipleChoiceService extends NodeService {
     return result;
   };
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
   /**
    * Get the human readable student data string
    * @param componentState the component state
@@ -330,35 +235,9 @@ class MultipleChoiceService extends NodeService {
         }
       }
     }
-
     return studentDataString;
   }
 
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
     if (componentState != null) {
       let studentData = componentState.studentData;
diff --git a/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.js b/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.js
index 7f54a8e187..33f0ee0cb3 100644
--- a/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.js
+++ b/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,79 +20,31 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var MultipleChoiceService = function (_NodeService) {
-  _inherits(MultipleChoiceService, _NodeService);
+var MultipleChoiceService = function (_ComponentService) {
+  _inherits(MultipleChoiceService, _ComponentService);
 
   function MultipleChoiceService($filter, StudentDataService, UtilService) {
     _classCallCheck(this, MultipleChoiceService);
 
-    var _this = _possibleConstructorReturn(this, (MultipleChoiceService.__proto__ || Object.getPrototypeOf(MultipleChoiceService)).call(this));
-
-    _this.$filter = $filter;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
-    return _this;
+    return _possibleConstructorReturn(this, (MultipleChoiceService.__proto__ || Object.getPrototypeOf(MultipleChoiceService)).call(this, $filter, StudentDataService, UtilService));
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Multiple Choice"
-   */
-
-
   _createClass(MultipleChoiceService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('multipleChoice.componentTypeLabel');
     }
-
-    /**
-     * Create a MultipleChoice component object
-     * @returns a new MultipleChoice component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(MultipleChoiceService.prototype.__proto__ || Object.getPrototypeOf(MultipleChoiceService.prototype), 'createComponent', this).call(this);
       component.type = 'MultipleChoice';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       component.choiceType = 'radio';
       component.choices = [];
       component.showFeedback = true;
       return component;
     }
 
-    /**
-     * Copies an existing MultipleChoice component object
-     * @returns a copied MultipleChoice component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.choiceType = componentToCopy.choiceType;
-      component.choices = [];
-      // go through the original choices and create new id's
-      if (componentToCopy.choices != null && componentToCopy.choices.length > 0) {
-        for (var c = 0; c < componentToCopy.choices.length; c++) {
-          var choice = componentToCopy.choices[c];
-          choice.id = this.UtilService.generateKey(); // generate a new id for this choice.
-          component.choices.push(choice);
-        }
-      }
-      return component;
-    }
-
     /**
      * Returns all possible criteria for this component.
      * @param component a MultipleChoice component
@@ -235,56 +189,8 @@ var MultipleChoiceService = function (_NodeService) {
 
       return choiceIds;
     }
-  }, {
-    key: 'populateComponentState',
-
-
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'MultipleChoice') {
-          // the other component is an MultipleChoice component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       var result = false;
 
@@ -323,28 +229,14 @@ var MultipleChoiceService = function (_NodeService) {
       return result;
     }
   }, {
-    key: 'componentHasWork',
-
+    key: 'getStudentDataString',
 
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-    value: function componentHasWork(component) {
-      return true;
-    }
 
     /**
      * Get the human readable student data string
      * @param componentState the component state
      * @return a human readable student data string
      */
-
-  }, {
-    key: 'getStudentDataString',
     value: function getStudentDataString(componentState) {
 
       var studentDataString = '';
@@ -382,42 +274,8 @@ var MultipleChoiceService = function (_NodeService) {
           }
         }
       }
-
       return studentDataString;
     }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -435,7 +293,7 @@ var MultipleChoiceService = function (_NodeService) {
   }]);
 
   return MultipleChoiceService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 MultipleChoiceService.$inject = ['$filter', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.js.map b/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.js.map
index c80442153b..1a8ffc6944 100644
--- a/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.js.map
+++ b/src/main/webapp/wise5/components/multipleChoice/multipleChoiceService.js.map
@@ -1 +1 @@
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NodeService from '../../services/nodeService';\n\nclass MultipleChoiceService extends NodeService {\n  constructor($filter,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Multiple Choice\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('multipleChoice.componentTypeLabel');\n  }\n\n  /**\n   * Create a MultipleChoice component object\n   * @returns a new MultipleChoice component object\n   */\n  createComponent() {\n    let component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'MultipleChoice';\n    component.prompt = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.choiceType = 'radio';\n    component.choices = [];\n    component.showFeedback = true;\n    return component;\n  }\n\n  /**\n   * Copies an existing MultipleChoice component object\n   * @returns a copied MultipleChoice component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.choiceType = componentToCopy.choiceType;\n    component.choices = [];\n    // go through the original choices and create new id's\n    if (componentToCopy.choices != null && componentToCopy.choices.length > 0) {\n      for (var c = 0; c < componentToCopy.choices.length; c++) {\n        var choice = componentToCopy.choices[c];\n        choice.id = this.UtilService.generateKey();  // generate a new id for this choice.\n        component.choices.push(choice);\n      }\n    }\n    return component;\n  }\n\n  /**\n   * Returns all possible criteria for this component.\n   * @param component a MultipleChoice component\n   */\n  getPossibleTransitionCriteria(nodeId, componentId, component) {\n    let allPossibleTransitionCriteria = [];\n    if (component.choiceType === 'radio') {\n      // Go through all the choices\n      for (var c = 0; c < component.choices.length; c++) {\n        let choice = component.choices[c];\n        let possibleTransitionCriteria = {\n          'name': 'choiceChosen',\n          'id': 'choiceChosen_' + choice.id,\n          'params': {\n            'nodeId': nodeId,\n            'componentId': componentId,\n            'choiceIds': [choice.id]\n          },\n          'userFriendlyDescription': this.$translate('multipleChoice.userChose', {choiceText: choice.text, choiceId: choice.id})\n        };\n        allPossibleTransitionCriteria.push(possibleTransitionCriteria);\n      }\n    } else if (component.choiceType === 'checkbox') {\n      // TODO: implement meeee!\n    }\n    return allPossibleTransitionCriteria;\n  }\n\n  /**\n   * Check if the student chose a specific choice\n   * @param criteria the criteria object\n   * @returns a boolean value whether the student chose the choice specified in the\n   * criteria object\n   */\n  choiceChosen(criteria) {\n\n    let result = false;\n\n    if (criteria != null && criteria.params != null) {\n      let nodeId = criteria.params.nodeId;\n      let componentId = criteria.params.componentId;\n      let choiceIds = criteria.params.choiceIds; // the choice ids that we expect the student to have chosen\n\n      if (nodeId != null && componentId != null) {\n\n        // get the component states\n        let componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(nodeId, componentId);\n\n        if (componentStates != null && componentStates.length > 0) {\n\n          if (choiceIds != null) {\n            // get the latest component state\n            let componentState = componentStates[componentStates.length - 1];\n\n            // get the student data\n            let studentData = componentState.studentData;\n\n            if (studentData != null) {\n\n              // get the choice(s) the student chose\n              let studentChoices = studentData.studentChoices;\n\n              if (studentChoices != null) {\n\n                if (studentChoices.length === choiceIds.length) {\n                  /*\n                   * the number of choices the student chose do match so the student may\n                   * have matched the choices. we will now need to compare each of the\n                   * choice ids to make sure the student chose the ones that are required\n                   */\n\n                  let studentChoiceIds = this.getStudentChoiceIdsFromStudentChoiceObjects(studentChoices);\n\n                  for (let c = 0; c < choiceIds.length; c++) {\n                    let choiceId = choiceIds[c];\n\n                    if (studentChoiceIds.indexOf(choiceId) === -1) {\n                      /*\n                       * the required choice id is not in the student choices so the student\n                       * did not match all the choices\n                       */\n                      result = false;\n                      break;\n                    } else {\n                      // the required choice id is in the student choices\n                      result = true;\n                    }\n                  }\n\n                } else {\n                  /*\n                   * the number of choices the student chose do not match so the student did\n                   * not match the choices\n                   */\n\n                  result = false;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Get the student choice ids from the student choice objects\n   * @param studentChoices an array of student choice objects. these objects contain\n   * an id and text fields\n   * @returns an array of choice id strings\n   */\n  getStudentChoiceIdsFromStudentChoiceObjects(studentChoices) {\n    let choiceIds = [];\n\n    if (studentChoices != null) {\n\n      // loop through all the student choice objects\n      for (let c = 0; c < studentChoices.length; c++) {\n\n        // get a student choice object\n        let studentChoice = studentChoices[c];\n\n        if (studentChoice != null) {\n\n          // get the student choice id\n          let studentChoiceId = studentChoice.id;\n\n          choiceIds.push(studentChoiceId);\n        }\n      }\n    }\n\n    return choiceIds;\n  };\n\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    let componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      let otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'MultipleChoice') {\n        // the other component is an MultipleChoice component\n\n        // get the student data from the other component state\n        let studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        let studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      // loop through all the component states\n      for (let c = 0, l = componentStates.length; c < l; c++) {\n\n        // the component state\n        let componentState = componentStates[c];\n\n        // get the student data from the component state\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          let studentChoices = studentData.studentChoices;\n\n          if (studentChoices != null) {\n            // there is a student choice so the component has saved work\n            if (submitRequired) {\n              // completion requires a submission, so check for isSubmit\n              if (componentState.isSubmit) {\n                result = true;\n                break;\n              }\n            } else {\n              result = true;\n              break;\n            }\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Get the human readable student data string\n   * @param componentState the component state\n   * @return a human readable student data string\n   */\n  getStudentDataString(componentState) {\n\n    var studentDataString = '';\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the choices the student chose\n        var studentChoices = studentData.studentChoices;\n\n        if (studentChoices != null) {\n\n          // loop through all the choices the student chose\n          for (var c = 0; c < studentChoices.length; c++) {\n            var studentChoice = studentChoices[c];\n\n            if (studentChoice != null) {\n\n              // get the choice text\n              var text = studentChoice.text;\n\n              if (text != null) {\n                if (studentDataString != '') {\n                  // separate the choices with a comma\n                  studentDataString += ', ';\n                }\n\n                // append the choice text\n                studentDataString += text;\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return studentDataString;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        let studentChoices = studentData.studentChoices;\n        if (studentChoices != null && studentChoices.length > 0) {\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n}\n\nMultipleChoiceService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default MultipleChoiceService;\n"]}
\ No newline at end of file
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ComponentService from '../componentService';\n\nclass MultipleChoiceService extends ComponentService {\n  constructor($filter, StudentDataService, UtilService) {\n    super($filter, StudentDataService, UtilService);\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('multipleChoice.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'MultipleChoice';\n    component.choiceType = 'radio';\n    component.choices = [];\n    component.showFeedback = true;\n    return component;\n  }\n\n  /**\n   * Returns all possible criteria for this component.\n   * @param component a MultipleChoice component\n   */\n  getPossibleTransitionCriteria(nodeId, componentId, component) {\n    let allPossibleTransitionCriteria = [];\n    if (component.choiceType === 'radio') {\n      // Go through all the choices\n      for (var c = 0; c < component.choices.length; c++) {\n        let choice = component.choices[c];\n        let possibleTransitionCriteria = {\n          'name': 'choiceChosen',\n          'id': 'choiceChosen_' + choice.id,\n          'params': {\n            'nodeId': nodeId,\n            'componentId': componentId,\n            'choiceIds': [choice.id]\n          },\n          'userFriendlyDescription': this.$translate('multipleChoice.userChose', {choiceText: choice.text, choiceId: choice.id})\n        };\n        allPossibleTransitionCriteria.push(possibleTransitionCriteria);\n      }\n    } else if (component.choiceType === 'checkbox') {\n      // TODO: implement meeee!\n    }\n    return allPossibleTransitionCriteria;\n  }\n\n  /**\n   * Check if the student chose a specific choice\n   * @param criteria the criteria object\n   * @returns a boolean value whether the student chose the choice specified in the\n   * criteria object\n   */\n  choiceChosen(criteria) {\n\n    let result = false;\n\n    if (criteria != null && criteria.params != null) {\n      let nodeId = criteria.params.nodeId;\n      let componentId = criteria.params.componentId;\n      let choiceIds = criteria.params.choiceIds; // the choice ids that we expect the student to have chosen\n\n      if (nodeId != null && componentId != null) {\n\n        // get the component states\n        let componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(nodeId, componentId);\n\n        if (componentStates != null && componentStates.length > 0) {\n\n          if (choiceIds != null) {\n            // get the latest component state\n            let componentState = componentStates[componentStates.length - 1];\n\n            // get the student data\n            let studentData = componentState.studentData;\n\n            if (studentData != null) {\n\n              // get the choice(s) the student chose\n              let studentChoices = studentData.studentChoices;\n\n              if (studentChoices != null) {\n\n                if (studentChoices.length === choiceIds.length) {\n                  /*\n                   * the number of choices the student chose do match so the student may\n                   * have matched the choices. we will now need to compare each of the\n                   * choice ids to make sure the student chose the ones that are required\n                   */\n\n                  let studentChoiceIds = this.getStudentChoiceIdsFromStudentChoiceObjects(studentChoices);\n\n                  for (let c = 0; c < choiceIds.length; c++) {\n                    let choiceId = choiceIds[c];\n\n                    if (studentChoiceIds.indexOf(choiceId) === -1) {\n                      /*\n                       * the required choice id is not in the student choices so the student\n                       * did not match all the choices\n                       */\n                      result = false;\n                      break;\n                    } else {\n                      // the required choice id is in the student choices\n                      result = true;\n                    }\n                  }\n\n                } else {\n                  /*\n                   * the number of choices the student chose do not match so the student did\n                   * not match the choices\n                   */\n\n                  result = false;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Get the student choice ids from the student choice objects\n   * @param studentChoices an array of student choice objects. these objects contain\n   * an id and text fields\n   * @returns an array of choice id strings\n   */\n  getStudentChoiceIdsFromStudentChoiceObjects(studentChoices) {\n    let choiceIds = [];\n\n    if (studentChoices != null) {\n\n      // loop through all the student choice objects\n      for (let c = 0; c < studentChoices.length; c++) {\n\n        // get a student choice object\n        let studentChoice = studentChoices[c];\n\n        if (studentChoice != null) {\n\n          // get the student choice id\n          let studentChoiceId = studentChoice.id;\n\n          choiceIds.push(studentChoiceId);\n        }\n      }\n    }\n\n    return choiceIds;\n  };\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      // loop through all the component states\n      for (let c = 0, l = componentStates.length; c < l; c++) {\n\n        // the component state\n        let componentState = componentStates[c];\n\n        // get the student data from the component state\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          let studentChoices = studentData.studentChoices;\n\n          if (studentChoices != null) {\n            // there is a student choice so the component has saved work\n            if (submitRequired) {\n              // completion requires a submission, so check for isSubmit\n              if (componentState.isSubmit) {\n                result = true;\n                break;\n              }\n            } else {\n              result = true;\n              break;\n            }\n          }\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Get the human readable student data string\n   * @param componentState the component state\n   * @return a human readable student data string\n   */\n  getStudentDataString(componentState) {\n\n    var studentDataString = '';\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the choices the student chose\n        var studentChoices = studentData.studentChoices;\n\n        if (studentChoices != null) {\n\n          // loop through all the choices the student chose\n          for (var c = 0; c < studentChoices.length; c++) {\n            var studentChoice = studentChoices[c];\n\n            if (studentChoice != null) {\n\n              // get the choice text\n              var text = studentChoice.text;\n\n              if (text != null) {\n                if (studentDataString != '') {\n                  // separate the choices with a comma\n                  studentDataString += ', ';\n                }\n\n                // append the choice text\n                studentDataString += text;\n              }\n            }\n          }\n        }\n      }\n    }\n    return studentDataString;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (componentState != null) {\n      let studentData = componentState.studentData;\n      if (studentData != null) {\n        let studentChoices = studentData.studentChoices;\n        if (studentChoices != null && studentChoices.length > 0) {\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n}\n\nMultipleChoiceService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default MultipleChoiceService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/openResponse/openResponseController.es6 b/src/main/webapp/wise5/components/openResponse/openResponseController.es6
index 8b5fa7787e..c51a07ec27 100644
--- a/src/main/webapp/wise5/components/openResponse/openResponseController.es6
+++ b/src/main/webapp/wise5/components/openResponse/openResponseController.es6
@@ -321,7 +321,8 @@ class OpenResponseController {
         if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {
           // we will show work from another component
           this.handleConnectedComponents();
-        }  else if (this.OpenResponseService.componentStateHasStudentWork(componentState, this.componentContent)) {
+        }  else if (componentState != null &&
+            this.OpenResponseService.componentStateHasStudentWork(componentState, this.componentContent)) {
           /*
            * the student has work so we will populate the work into this
            * component
diff --git a/src/main/webapp/wise5/components/openResponse/openResponseController.js b/src/main/webapp/wise5/components/openResponse/openResponseController.js
index 00207b8f83..89ffec4e06 100644
--- a/src/main/webapp/wise5/components/openResponse/openResponseController.js
+++ b/src/main/webapp/wise5/components/openResponse/openResponseController.js
@@ -299,7 +299,7 @@ var OpenResponseController = function () {
         if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {
           // we will show work from another component
           this.handleConnectedComponents();
-        } else if (this.OpenResponseService.componentStateHasStudentWork(componentState, this.componentContent)) {
+        } else if (componentState != null && this.OpenResponseService.componentStateHasStudentWork(componentState, this.componentContent)) {
           /*
            * the student has work so we will populate the work into this
            * component
diff --git a/src/main/webapp/wise5/components/openResponse/openResponseController.js.map b/src/main/webapp/wise5/components/openResponse/openResponseController.js.map
index 752c327d54..1c9ac58ef5 100644
--- a/src/main/webapp/wise5/components/openResponse/openResponseController.js.map
+++ b/src/main/webapp/wise5/components/openResponse/openResponseController.js.map
@@ -1,5 +1 @@
-<<<<<<< HEAD
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strict';\n\nclass OpenResponseController {\n\n  constructor($filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      AnnotationService,\n      ConfigService,\n      CRaterService,\n      NodeService,\n      NotebookService,\n      NotificationService,\n      OpenResponseService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.CRaterService = CRaterService;\n    this.NodeService = NodeService;\n    this.NotebookService = NotebookService;\n    this.NotificationService = NotificationService;\n    this.OpenResponseService = OpenResponseService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n\n    this.idToOrder = this.ProjectService.idToOrder;\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // holds the text that the student has typed\n    this.studentResponse = '';\n\n    // holds student attachments like assets\n    this.attachments = [];\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether the student work has changed since last submit\n    this.isSubmitDirty = false;\n\n    // message to show next to save/submit buttons\n    this.saveMessage = {\n      text: '',\n      time: ''\n    };\n\n    // whether this component is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // whether rich text editing is enabled\n    this.isRichTextEnabled = false;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // whether the prompt is shown or not\n    this.isPromptVisible = true;\n\n    // whether the save button is shown or not\n    this.isSaveButtonVisible = false;\n\n    // whether the submit button is shown or not\n    this.isSubmitButtonVisible = false;\n\n    // whether the submit button is disabled\n    this.isSubmitButtonDisabled = false;\n\n    // whether we're only showing the student work\n    this.onlyShowWork = false;\n\n    // the latest annotations\n    this.latestAnnotations = null;\n\n    // used to hold a message dialog if we need to use one\n    this.messageDialog = null;\n\n    // counter to keep track of the number of submits\n    this.submitCounter = 0;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // whether this component uses a custom completion criteria\n    this.useCustomCompletionCriteria = false;\n\n    // whether we are currently verifying a CRater item id\n    this.isVerifyingCRaterItemId = false;\n\n    // whether the CRater item id is valid\n    this.cRaterItemIdIsValid = null;\n\n    // whether the snip button is shown or not\n    this.isSnipButtonVisible = true;\n\n    //var scope = this;\n    let themePath = this.ProjectService.getThemePath();\n\n    // TODO: make toolbar items and plugins customizable by authors (OR strip down to only special characters, support for equations)\n    // Rich text editor options\n    this.tinymceOptions = {\n      //onChange: function(e) {\n      //scope.studentDataChanged();\n      //},\n      menubar: false,\n      plugins: 'link image media autoresize', //imagetools\n      toolbar: 'undo redo | bold italic | superscript subscript | bullist numlist | alignleft aligncenter alignright | link image media',\n      autoresize_bottom_margin: '0',\n      autoresize_min_height: '100',\n      image_advtab: true,\n      content_css: themePath + '/style/tinymce.css',\n      setup: function (ed) {\n        ed.on('focus', function (e) {\n          $(e.target.editorContainer).addClass('input--focused').parent().addClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').addClass('input-label--focused');\n        });\n\n        ed.on('blur', function (e) {\n          $(e.target.editorContainer).removeClass('input--focused').parent().removeClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').removeClass('input-label--focused');\n        });\n      }\n    };\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      {\n        type: 'OpenResponse'\n      }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n\n      if (this.mode === 'student') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n      } else if (this.mode === 'grading') {\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n        this.isSnipButtonVisible = false;\n      } else if (this.mode === 'onlyShowWork') {\n        this.onlyShowWork = true;\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n        this.isSnipButtonVisible = false;\n      } else if (this.mode === 'showPreviousWork') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n        this.isSnipButtonVisible = false;\n      } else if (this.mode === 'authoring') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          // inject the asset paths into the new component content\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n\n          /*\n           * reset the values so that the preview is refreshed with\n           * the new content\n           */\n          this.submitCounter = 0;\n          this.studentResponse = '';\n          this.latestAnnotations = null;\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.isSaveButtonVisible = this.componentContent.showSaveButton;\n          this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n          if (this.componentContent.starterSentence != null) {\n            /*\n             * the student has not done any work and there is a starter sentence\n             * so we will populate the textarea with the starter sentence\n             */\n            this.studentResponse = this.componentContent.starterSentence;\n          }\n        }.bind(this), true);\n      }\n\n      var componentState = null;\n\n      // set whether rich text is enabled\n      this.isRichTextEnabled = this.componentContent.isRichTextEnabled;\n\n      // set whether studentAttachment is enabled\n      this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n      if (this.componentContent.completionCriteria != null) {\n        this.useCustomCompletionCriteria = true;\n      }\n\n      // get the component state from the scope\n      componentState = this.$scope.componentState;\n\n      if (this.mode == 'student') {\n        if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {\n          // we will show work from another component\n          this.handleConnectedComponents();\n        }  else if (this.OpenResponseService.componentStateHasStudentWork(componentState, this.componentContent)) {\n          /*\n           * the student has work so we will populate the work into this\n           * component\n           */\n          this.setStudentWork(componentState);\n        } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n          // we will import work from another component\n          this.handleConnectedComponents();\n        } else if (componentState == null) {\n          // check if we need to import work\n\n          var importPreviousWorkNodeId = this.getImportPreviousWorkNodeId();\n          var importPreviousWorkComponentId = this.getImportPreviousWorkComponentId();\n\n          if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n            // import the work from the other component\n            this.importWork();\n          } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n            /*\n             * the student does not have any work and there are connected\n             * components so we will get the work from the connected\n             * components\n             */\n            this.handleConnectedComponents();\n          } else if (this.componentContent.starterSentence != null) {\n            /*\n             * the student has not done any work and there is a starter sentence\n             * so we will populate the textarea with the starter sentence\n             */\n            this.studentResponse = this.componentContent.starterSentence;\n          }\n        }\n      } else {\n        // populate the student work into this component\n        this.setStudentWork(componentState);\n      }\n\n      // check if the student has used up all of their submits\n      if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n        /*\n         * the student has used up all of their chances to submit so we\n         * will disable the submit button\n         */\n        this.isSubmitButtonDisabled = true;\n      }\n\n      // check if we need to lock this component\n      this.calculateDisabled();\n\n      if (this.$scope.$parent.nodeController != null) {\n        // register this component with the parent node\n        this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n      }\n    }\n\n    //$('.openResponse').off('dragover').off('drop');\n\n    /**\n     * Returns true iff there is student work that hasn't been saved yet\n     */\n    this.$scope.isDirty = function() {\n      return this.$scope.openResponseController.isDirty;\n    }.bind(this);\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @param isSubmit boolean whether the request is coming from a submit\n     * action (optional; default is false)\n     * @return a promise of a component state containing the student data\n     */\n    this.$scope.getComponentState = function(isSubmit) {\n      var deferred = this.$q.defer();\n      let getState = false;\n      let action = 'change';\n\n      if (isSubmit) {\n        if (this.$scope.openResponseController.isSubmitDirty) {\n          getState = true;\n          action = 'submit';\n        }\n      } else {\n        if (this.$scope.openResponseController.isDirty) {\n          getState = true;\n          action = 'save';\n        }\n      }\n\n      if (getState) {\n        // create a component state populated with the student data\n        this.$scope.openResponseController.createComponentState(action).then((componentState) => {\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', function(event, args) {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n\n        // trigger the submit\n        var submitTriggeredBy = 'nodeSubmitButton';\n        this.submit(submitTriggeredBy);\n      }\n    }.bind(this));\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', angular.bind(this, function(event, args) {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // set isDirty to false because the component state was just saved and notify node\n        this.isDirty = false;\n        this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: false});\n\n        let isAutoSave = componentState.isAutoSave;\n        let isSubmit = componentState.isSubmit;\n        let serverSaveTime = componentState.serverSaveTime;\n        let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n\n        // set save message\n        if (isSubmit) {\n          this.setSaveMessage(this.$translate('SUBMITTED'), clientSaveTime);\n\n          this.lockIfNecessary();\n\n          // set isSubmitDirty to false because the component state was just submitted and notify node\n          this.isSubmitDirty = false;\n          this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        } else if (isAutoSave) {\n          this.setSaveMessage(this.$translate('AUTO_SAVED'), clientSaveTime);\n        } else {\n          this.setSaveMessage(this.$translate('SAVED'), clientSaveTime);\n        }\n      }\n    }));\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', function(event, args) {\n\n    }.bind(this));\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n\n    this.$scope.$on('notebookItemChosen', (event, args) => {\n      if (args.requester == this.nodeId + '-' + this.componentId) {\n        const notebookItem = args.notebookItem;\n        const studentWorkId = notebookItem.content.studentWorkIds[0];\n        this.importWorkByStudentWorkId(studentWorkId);\n      }\n    });\n\n    // load script for this component, if any\n    let script = this.componentContent.script;\n    if (script != null) {\n      this.ProjectService.retrieveScript(script).then((script) => {\n        new Function(script).call(this);\n      });\n    }\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        var response = studentData.response;\n\n        if (response != null) {\n          // populate the text the student previously typed\n          this.studentResponse = response;\n        }\n\n        var submitCounter = studentData.submitCounter;\n\n        if (submitCounter != null) {\n          // populate the submit counter\n          this.submitCounter = submitCounter;\n        }\n\n        var attachments = studentData.attachments;\n\n        if (attachments != null) {\n          this.attachments = attachments;\n        }\n\n        this.processLatestSubmit();\n      }\n    }\n  };\n\n  /**\n   * Check if latest component state is a submission and set isSubmitDirty accordingly\n   */\n  processLatestSubmit() {\n    let latestState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n    if (latestState) {\n      let serverSaveTime = latestState.serverSaveTime;\n      let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n      if (latestState.isSubmit) {\n        // latest state is a submission, so set isSubmitDirty to false and notify node\n        this.isSubmitDirty = false;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SUBMITTED'), clientSaveTime);\n      } else {\n        // latest state is not a submission, so set isSubmitDirty to true and notify node\n        this.isSubmitDirty = true;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SAVED'), clientSaveTime);\n      }\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n    this.isSubmit = false;\n\n    if (this.mode === 'authoring') {\n      /*\n       * we are in authoring mode so we will set isDirty to false here\n       * because the 'componentSaveTriggered' event won't work in\n       * authoring mode\n       */\n      this.isDirty = false;\n    }\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    // trigger the submit\n    var submitTriggeredBy = 'componentSubmitButton';\n    this.submit(submitTriggeredBy);\n  };\n\n  /**\n   * A submit was triggered by the component submit button or node submit button\n   * @param submitTriggeredBy what triggered the submit\n   * e.g. 'componentSubmitButton' or 'nodeSubmitButton'\n   */\n  submit(submitTriggeredBy) {\n\n    if (this.isSubmitDirty) {\n      // the student has unsubmitted work\n\n      var performSubmit = true;\n\n      if (this.componentContent.maxSubmitCount != null) {\n        // there is a max submit count\n\n        // calculate the number of submits this student has left\n        var numberOfSubmitsLeft = this.componentContent.maxSubmitCount - this.submitCounter;\n\n        var message = '';\n\n        if (numberOfSubmitsLeft <= 0) {\n\n          // the student does not have any more chances to submit\n          alert(this.$translate('openResponse.youHaveNoMoreChances'));\n          performSubmit = false;\n        } else if (numberOfSubmitsLeft == 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('openResponse.youHaveOneChance', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          //message = 'You have ' + numberOfSubmitsLeft + ' chance to receive feedback on your answer so this this should be your best work.\\n\\nAre you ready to receive feedback on this answer?';\n          performSubmit = confirm(message);\n        } else if (numberOfSubmitsLeft > 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('openResponse.youHaveMultipleChances', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          //message = 'You have ' + numberOfSubmitsLeft + ' chances to receive feedback on your answer so this this should be your best work.\\n\\nAre you ready to receive feedback on this answer?';\n          performSubmit = confirm(message);\n        }\n      }\n\n      if (performSubmit) {\n\n        /*\n         * set isSubmit to true so that when the component state is\n         * created, it will know that is a submit component state\n         * instead of just a save component state\n         */\n        this.isSubmit = true;\n\n        // increment the submit counter\n        this.incrementSubmitCounter();\n\n        // check if the student has used up all of their submits\n        if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n          /*\n           * the student has used up all of their submits so we will\n           * disable the submit button\n           */\n          this.isSubmitButtonDisabled = true;\n        }\n\n        if (this.mode === 'authoring') {\n          /*\n           * we are in authoring mode so we will set values appropriately\n           * here because the 'componentSubmitTriggered' event won't\n           * work in authoring mode\n           */\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.createComponentState('submit');\n        }\n\n        if (submitTriggeredBy == null || submitTriggeredBy === 'componentSubmitButton') {\n          // tell the parent node that this component wants to submit\n          this.$scope.$emit('componentSubmitTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n        } else if (submitTriggeredBy === 'nodeSubmitButton') {\n          // nothing extra needs to be performed\n        }\n      } else {\n        /*\n         * the student has cancelled the submit so if a component state\n         * is created, it will just be a regular save and not submit\n         */\n        this.isSubmit = false;\n      }\n    }\n  }\n\n  /**\n   * Increment the submit counter\n   */\n  incrementSubmitCounter() {\n    this.submitCounter++;\n  }\n\n  lockIfNecessary() {\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flags so we will know we need to save or submit the\n     * student work later\n     */\n    this.isDirty = true;\n    this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: true});\n\n    this.isSubmitDirty = true;\n    this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n\n    // clear out the save message\n    this.setSaveMessage('', null);\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Get the student response\n   */\n  getStudentResponse() {\n    return this.studentResponse;\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    var deferred = this.$q.defer();\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    // set the response into the component state\n    var studentData = {};\n\n    // get the text the student typed\n    var response = this.getStudentResponse();\n\n    studentData.response = response;\n    studentData.attachments = angular.copy(this.attachments);  // create a copy without reference to original array\n\n    // set the submit counter\n    studentData.submitCounter = this.submitCounter;\n\n    if (this.parentStudentWorkIds != null) {\n      studentData.parentStudentWorkIds = this.parentStudentWorkIds;\n    }\n\n    // set the flag for whether the student submitted this work\n    componentState.isSubmit = this.isSubmit;\n\n    // set the student data into the component state\n    componentState.studentData = studentData;\n\n    // set the component type\n    componentState.componentType = 'OpenResponse';\n\n    // set the node id\n    componentState.nodeId = this.nodeId;\n\n    // set the component id\n    componentState.componentId = this.componentId;\n\n    /*\n     * reset the isSubmit value so that the next component state\n     * doesn't maintain the same value\n     */\n    this.isSubmit = false;\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n\n    var performCRaterScoring = false;\n\n    // determine if we need to perform CRater scoring\n    if (action == 'submit' && componentState.isSubmit) {\n      if (this.isCRaterScoreOnSubmit(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    } else if (action == 'save') {\n      if (this.isCRaterScoreOnSave(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    } else if (action == 'change' || action == null) {\n      if (this.isCRaterScoreOnChange(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    }\n\n    if (performCRaterScoring) {\n      // we need to perform CRater scoring\n\n      var cRaterItemType = this.CRaterService.getCRaterItemType(this.componentContent);\n      var cRaterItemId = this.CRaterService.getCRaterItemId(this.componentContent);\n      var cRaterRequestType = 'scoring';\n      var cRaterResponseId = new Date().getTime();\n      var studentData = this.studentResponse;\n\n      /*\n       * display a dialog message while the student waits for their work\n       * to be scored by CRater\n       */\n      this.$mdDialog.show({\n        template: '<md-dialog aria-label=\"' + this.$translate('openResponse.pleaseWait') + '\"><md-dialog-content><div class=\"md-dialog-content\">' + this.$translate('openResponse.pleaseWaitWeAreScoringYourWork') + '</div></md-dialog-content></md-dialog>',\n        escapeToClose: false\n      });\n\n      // make the CRater request to score the student data\n      this.CRaterService.makeCRaterRequest(cRaterItemType, cRaterItemId, cRaterRequestType, cRaterResponseId, studentData).then((result) => {\n\n        if (result != null) {\n\n          // get the CRater response\n          var data = result.data;\n\n          if (data != null) {\n\n            /*\n             * annotations we put in the component state will be\n             * removed from the component state and saved separately\n             */\n            componentState.annotations = [];\n\n            // get the CRater score\n            let score = data.score;\n            let concepts = data.concepts;\n            let previousScore = null;\n\n            if (score != null) {\n\n              // create the auto score annotation\n              let autoScoreAnnotationData = {};\n              autoScoreAnnotationData.value = score;\n              autoScoreAnnotationData.maxAutoScore = this.ProjectService.getMaxScoreForComponent(this.nodeId, this.componentId);\n              autoScoreAnnotationData.concepts = concepts;\n              autoScoreAnnotationData.autoGrader = 'cRater';\n\n              let autoScoreAnnotation = this.createAutoScoreAnnotation(autoScoreAnnotationData);\n\n              let annotationGroupForScore = null;\n\n              if (this.$scope.$parent.nodeController != null) {\n                // get the previous score and comment annotations\n                let latestAnnotations = this.$scope.$parent.nodeController.getLatestComponentAnnotations(this.componentId);\n\n                if (latestAnnotations != null && latestAnnotations.score != null &&\n                  latestAnnotations.score.data != null) {\n\n                  // get the previous score annotation value\n                  previousScore = latestAnnotations.score.data.value;\n                }\n\n                if (this.componentContent.enableGlobalAnnotations && this.componentContent.globalAnnotationSettings != null) {\n\n                  let globalAnnotationMaxCount = 0;\n                  if (this.componentContent.globalAnnotationSettings.globalAnnotationMaxCount != null) {\n                    globalAnnotationMaxCount = this.componentContent.globalAnnotationSettings.globalAnnotationMaxCount;\n                  }\n                  // get the annotation properties for the score that the student got.\n                  annotationGroupForScore = this.ProjectService.getGlobalAnnotationGroupByScore(this.componentContent, previousScore, score);\n\n                  // check if we need to apply this globalAnnotationSetting to this annotation: we don't need to if we've already reached the maxCount\n                  if (annotationGroupForScore != null) {\n                    let globalAnnotationGroupsByNodeIdAndComponentId = this.AnnotationService.getAllGlobalAnnotationGroups(this.nodeId, this.componentId);\n                    annotationGroupForScore.annotationGroupCreatedTime = autoScoreAnnotation.clientSaveTime;  // save annotation creation time\n\n                    if (globalAnnotationGroupsByNodeIdAndComponentId.length >= globalAnnotationMaxCount) {\n                      // we've already applied this annotation properties to maxCount annotations, so we don't need to apply it any more.\n                      annotationGroupForScore = null;\n                    }\n                  }\n\n                  if (annotationGroupForScore != null && annotationGroupForScore.isGlobal && annotationGroupForScore.unGlobalizeCriteria != null) {\n                    // check if this annotation is global and what criteria needs to be met to un-globalize.\n                    annotationGroupForScore.unGlobalizeCriteria.map( (unGlobalizeCriteria) => {\n                      // if the un-globalize criteria is time-based (e.g. isVisitedAfter, isRevisedAfter, isVisitedAndRevisedAfter, etc), store the timestamp of this annotation in the criteria\n                      // so we can compare it when we check for criteria satisfaction.\n                      if (unGlobalizeCriteria.params != null) {\n                        unGlobalizeCriteria.params.criteriaCreatedTimestamp = autoScoreAnnotation.clientSaveTime;  // save annotation creation time to criteria\n                      }\n                    });\n                  }\n\n                  if (annotationGroupForScore != null) {\n                    // copy over the annotation properties into the autoScoreAnnotation's data\n                    angular.merge(autoScoreAnnotation.data, annotationGroupForScore);\n                  }\n                }\n              }\n\n              componentState.annotations.push(autoScoreAnnotation);\n\n              if (this.mode === 'authoring') {\n                if (this.latestAnnotations == null) {\n                  this.latestAnnotations = {};\n                }\n\n                /*\n                 * we are in the authoring view so we will set the\n                 * latest score annotation manually\n                 */\n                this.latestAnnotations.score = autoScoreAnnotation;\n              }\n\n              var autoComment = null;\n\n              // get the submit counter\n              var submitCounter = this.submitCounter;\n\n              if (this.componentContent.cRater.enableMultipleAttemptScoringRules && submitCounter > 1) {\n                /*\n                 * this step has multiple attempt scoring rules and this is\n                 * a subsequent submit\n                 */\n                // get the feedback based upon the previous score and current score\n                autoComment = this.CRaterService.getMultipleAttemptCRaterFeedbackTextByScore(this.componentContent, previousScore, score);\n              } else {\n                // get the feedback text\n                autoComment = this.CRaterService.getCRaterFeedbackTextByScore(this.componentContent, score);\n              }\n\n              if (autoComment != null) {\n                // create the auto comment annotation\n                var autoCommentAnnotationData = {};\n                autoCommentAnnotationData.value = autoComment;\n                autoCommentAnnotationData.concepts = concepts;\n                autoCommentAnnotationData.autoGrader = 'cRater';\n\n                var autoCommentAnnotation = this.createAutoCommentAnnotation(autoCommentAnnotationData);\n\n                if (this.componentContent.enableGlobalAnnotations) {\n                  if (annotationGroupForScore != null) {\n                    // copy over the annotation properties into the autoCommentAnnotation's data\n                    angular.merge(autoCommentAnnotation.data, annotationGroupForScore);\n                  }\n                }\n                componentState.annotations.push(autoCommentAnnotation);\n\n                if (this.mode === 'authoring') {\n                  if (this.latestAnnotations == null) {\n                    this.latestAnnotations = {};\n                  }\n\n                  /*\n                   * we are in the authoring view so we will set the\n                   * latest comment annotation manually\n                   */\n                  this.latestAnnotations.comment = autoCommentAnnotation;\n                }\n              }\n              if (this.componentContent.enableNotifications) {\n                // get the notification properties for the score that the student got.\n                let notificationForScore = this.ProjectService.getNotificationByScore(this.componentContent, previousScore, score);\n\n                if (notificationForScore != null) {\n                  notificationForScore.score = score;\n                  notificationForScore.nodeId = this.nodeId;\n                  notificationForScore.componentId = this.componentId;\n                  this.NotificationService.sendNotificationForScore(notificationForScore);\n                }\n              }\n\n              // display global annotations dialog if needed\n              if (this.componentContent.enableGlobalAnnotations && annotationGroupForScore != null && annotationGroupForScore.isGlobal && annotationGroupForScore.isPopup) {\n                this.$scope.$emit('displayGlobalAnnotations');\n              }\n            }\n          }\n        }\n\n        /*\n         * hide the dialog that tells the student to wait since\n         * the work has been scored.\n         */\n        this.$mdDialog.hide();\n\n        // resolve the promise now that we are done performing additional processing\n        deferred.resolve(componentState);\n      });\n    } else if (this.ProjectService.hasAdditionalProcessingFunctions(this.nodeId, this.componentId)) {\n      // if there are any additionalProcessingFunctions for this node and component, call all of them\n      let additionalProcessingFunctions = this.ProjectService.getAdditionalProcessingFunctions(this.nodeId, this.componentId);\n      let allPromises = [];\n      for (let i = 0; i < additionalProcessingFunctions.length; i++) {\n        let additionalProcessingFunction = additionalProcessingFunctions[i];\n        let defer = this.$q.defer();\n        let promise = defer.promise;\n        allPromises.push(promise);\n        additionalProcessingFunction(defer, componentState, action);\n      }\n      this.$q.all(allPromises).then(() => {\n        deferred.resolve(componentState);\n      });\n    } else {\n      /*\n       * we don't need to perform any additional processing so we can resolve\n       * the promise immediately\n       */\n      deferred.resolve(componentState);\n    }\n  }\n\n  /**\n   * Create an auto score annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto score annotation\n   */\n  createAutoScoreAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto score annotation\n    var annotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Create an auto comment annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto comment annotation\n   */\n  createAutoCommentAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto comment annotation\n    var annotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the component after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n    }\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  removeAttachment(attachment) {\n    if (this.attachments.indexOf(attachment) != -1) {\n      this.attachments.splice(this.attachments.indexOf(attachment), 1);\n      this.studentDataChanged();\n      // YOU ARE NOW FREEEEEEEEE!\n    }\n  };\n\n  /**\n   * Attach student asset to this Component's attachments\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          var attachment = {\n            studentAssetId: copiedAsset.id,\n            iconURL: copiedAsset.iconURL\n          };\n\n          this.attachments.push(attachment);\n          this.studentDataChanged();\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the number of rows for the textarea\n   */\n  getNumRows() {\n    var numRows = null;\n\n    if (this.componentContent != null) {\n      numRows = this.componentContent.numRows;\n    }\n\n    return numRows;\n  };\n\n  /**\n   * Get the number of columns for the textarea\n   */\n  getNumColumns() {\n    var numColumns = null;\n\n    if (this.componentContent != null) {\n      numColumns = this.componentContent.numColumns;\n    }\n\n    return numColumns;\n  };\n\n  /**\n   * Get the text the student typed\n   */\n  getResponse() {\n    var response = null;\n\n    if (this.studentResponse != null) {\n      response = this.studentResponse;\n    }\n\n    return response;\n  };\n\n  /**\n   * Import work from another component\n   */\n  importWork() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // get the import previous work node id and component id\n      var importPreviousWorkNodeId = componentContent.importPreviousWorkNodeId;\n      var importPreviousWorkComponentId = componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        if (componentContent.importWorkNodeId != null && componentContent.importWorkNodeId != '') {\n          importPreviousWorkNodeId = componentContent.importWorkNodeId;\n        }\n      }\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        if (componentContent.importWorkComponentId != null && componentContent.importWorkComponentId != '') {\n          importPreviousWorkComponentId = componentContent.importWorkComponentId;\n        }\n      }\n\n      if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importPreviousWorkNodeId, importPreviousWorkComponentId);\n\n          if (importWorkComponentState != null) {\n            /*\n             * populate a new component state with the work from the\n             * imported component state\n             */\n            var populatedComponentState = this.OpenResponseService.populateComponentState(importWorkComponentState);\n\n            // populate the component state into this component\n            this.setStudentWork(populatedComponentState);\n\n            // make the work dirty so that it gets saved\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * The show previous work checkbox was clicked\n   */\n  authoringShowPreviousWorkClicked() {\n\n    if (!this.authoringComponentContent.showPreviousWork) {\n      /*\n       * show previous work has been turned off so we will clear the\n       * show previous work node id, show previous work component id, and\n       * show previous work prompt values\n       */\n      this.authoringComponentContent.showPreviousWorkNodeId = null;\n      this.authoringComponentContent.showPreviousWorkComponentId = null;\n      this.authoringComponentContent.showPreviousWorkPrompt = null;\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The show previous work node id has changed\n   */\n  authoringShowPreviousWorkNodeIdChanged() {\n\n    if (this.authoringComponentContent.showPreviousWorkNodeId == null ||\n      this.authoringComponentContent.showPreviousWorkNodeId == '') {\n\n      /*\n       * the show previous work node id is null so we will also set the\n       * show previous component id to null\n       */\n      this.authoringComponentContent.showPreviousWorkComponentId = '';\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The show previous work component id has changed\n   */\n  authoringShowPreviousWorkComponentIdChanged() {\n\n    // get the show previous work node id\n    var showPreviousWorkNodeId = this.authoringComponentContent.showPreviousWorkNodeId;\n\n    // get the show previous work prompt boolean value\n    var showPreviousWorkPrompt = this.authoringComponentContent.showPreviousWorkPrompt;\n\n    // get the old show previous work component id\n    var oldShowPreviousWorkComponentId = this.componentContent.showPreviousWorkComponentId;\n\n    // get the new show previous work component id\n    var newShowPreviousWorkComponentId = this.authoringComponentContent.showPreviousWorkComponentId;\n\n    // get the new show previous work component\n    var newShowPreviousWorkComponent = this.ProjectService.getComponentByNodeIdAndComponentId(showPreviousWorkNodeId, newShowPreviousWorkComponentId);\n\n    if (newShowPreviousWorkComponent == null || newShowPreviousWorkComponent == '') {\n      // the new show previous work component is empty\n\n      // save the component\n      this.authoringViewComponentChanged();\n    } else if (newShowPreviousWorkComponent != null) {\n\n      // get the current component type\n      var currentComponentType = this.componentContent.type;\n\n      // get the new component type\n      var newComponentType = newShowPreviousWorkComponent.type;\n\n      // check if the component types are different\n      if (newComponentType != currentComponentType) {\n        /*\n         * the component types are different so we will need to change\n         * the whole component\n         */\n\n        // make sure the author really wants to change the component type\n        var answer = confirm(this.$translate('ARE_YOU_SURE_YOU_WANT_TO_CHANGE_THIS_COMPONENT_TYPE'));\n\n        if (answer) {\n          // the author wants to change the component type\n\n          /*\n           * get the component service so we can make a new instance\n           * of the component\n           */\n          var componentService = this.$injector.get(newComponentType + 'Service');\n\n          if (componentService != null) {\n\n            // create a new component\n            var newComponent = componentService.createComponent();\n\n            // set move over the values we need to keep\n            newComponent.id = this.authoringComponentContent.id;\n            newComponent.showPreviousWork = true;\n            newComponent.showPreviousWorkNodeId = showPreviousWorkNodeId;\n            newComponent.showPreviousWorkComponentId = newShowPreviousWorkComponentId;\n            newComponent.showPreviousWorkPrompt = showPreviousWorkPrompt;\n\n            /*\n             * update the authoring component content JSON string to\n             * change the component\n             */\n            this.authoringComponentContentJSONString = JSON.stringify(newComponent);\n\n            // update the component in the project and save the project\n            this.advancedAuthoringViewComponentChanged();\n          }\n        } else {\n          /*\n           * the author does not want to change the component type so\n           * we will rollback the showPreviousWorkComponentId value\n           */\n          this.authoringComponentContent.showPreviousWorkComponentId = oldShowPreviousWorkComponentId;\n        }\n      } else {\n        /*\n         * the component types are the same so we do not need to change\n         * the component type and can just save\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Get all the step node ids in the project\n   * @returns all the step node ids\n   */\n  getStepNodeIds() {\n    var stepNodeIds = this.ProjectService.getNodeIds();\n\n    return stepNodeIds;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Set the message next to the save button\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setSaveMessage(message, time) {\n    this.saveMessage.text = message;\n    this.saveMessage.time = time;\n  };\n\n  showSnipButton() {\n    return this.NotebookService.isNotebookEnabled() && this.isSnipButtonVisible;\n  }\n\n  snipButtonClicked($event) {\n    if (this.isDirty) {\n      const deregisterListener = this.$scope.$on('studentWorkSavedToServer',\n        (event, args) => {\n          let componentState = args.studentWork;\n          if (componentState &&\n              this.nodeId === componentState.nodeId &&\n              this.componentId === componentState.componentId) {\n            const imageObject = null;\n            const noteText = componentState.studentData.response;\n            const isEditTextEnabled = false;\n            const isFileUploadEnabled = false;\n            this.NotebookService.addNote($event, imageObject, noteText, [ componentState.id ], isEditTextEnabled, isFileUploadEnabled);\n            deregisterListener();\n          }\n        }\n      );\n      this.saveButtonClicked(); // trigger a save\n    } else {\n      const studentWork =\n        this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n      const imageObject = null;\n      const noteText = studentWork.studentData.response;\n      const isEditTextEnabled = false;\n      const isFileUploadEnabled = false;\n      this.NotebookService.addNote($event, imageObject, noteText, [ studentWork.id ], isEditTextEnabled, isFileUploadEnabled);\n    }\n  }\n\n  showCopyPublicNotebookItemButton() {\n    return this.ProjectService.isSpaceExists(\"public\");\n  }\n\n  copyPublicNotebookItemButtonClicked(event) {\n    this.$rootScope.$broadcast('openNotebook',\n      { nodeId: this.nodeId, componentId: this.componentId, insertMode: true, requester: this.nodeId + '-' + this.componentId, visibleSpace: \"public\" });\n  }\n\n  importWorkByStudentWorkId(studentWorkId) {\n    this.StudentDataService.getStudentWorkById(studentWorkId).then((componentState) => {\n      if (componentState != null) {\n        this.setStudentWork(componentState);\n        this.setParentStudentWorkIdToCurrentStudentWork(studentWorkId);\n        this.$rootScope.$broadcast('closeNotebook');\n      }\n    });\n  }\n\n  setParentStudentWorkIdToCurrentStudentWork(studentWorkId) {\n    this.parentStudentWorkIds = [studentWorkId];\n  }\n\n  /**\n   * Check if CRater is enabled for this component\n   * @returns whether CRater is enabled for this component\n   */\n  isCRaterEnabled() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterEnabled(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on save\n   * @returns whether CRater is set to score on save\n   */\n  isCRaterScoreOnSave() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSave(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on submit\n   * @returns whether CRater is set to score on submit\n   */\n  isCRaterScoreOnSubmit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSubmit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on change\n   * @returns whether CRater is set to score on change\n   */\n  isCRaterScoreOnChange() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnChange(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score when the student exits the step\n   * @returns whether CRater is set to score when the student exits the step\n   */\n  isCRaterScoreOnExit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnExit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    this.exitListener = this.$scope.$on('exit', (event, args) => {\n\n    });\n  };\n\n  /**\n   * Add a scoring rule\n   */\n  authoringAddScoringRule() {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // create a scoring rule object\n      var newScoringRule = {};\n      newScoringRule.score = '';\n      newScoringRule.feedbackText = '';\n\n      // add the new scoring rule object\n      this.authoringComponentContent.cRater.scoringRules.push(newScoringRule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Move a scoring rule up\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleUpClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // make sure the scoring rule is not already at the top\n      if (index != 0) {\n        // the scoring rule is not at the top so we can move it up\n\n        // get the scoring rule\n        var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n        // remove the scoring rule\n        this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n        // add the scoring rule back at the position one index back\n        this.authoringComponentContent.cRater.scoringRules.splice(index - 1, 0, scoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a scoring rule down\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleDownClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // make sure the scoring rule is not already at the end\n      if (index != this.authoringComponentContent.cRater.scoringRules.length - 1) {\n\n        // get the scoring rule\n        var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n        // remove the scoring rule\n        this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n        // add the scoring rule back at the position one index forward\n        this.authoringComponentContent.cRater.scoringRules.splice(index + 1, 0, scoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a scoring rule\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleDeleteClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // get the scoring rule\n      var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n      if (scoringRule != null) {\n\n        // get the score and feedback text\n        var score = scoringRule.score;\n        var feedbackText = scoringRule.feedbackText;\n\n        // make sure the author really wants to delete the scoring rule\n        //var answer = confirm('Are you sure you want to delete this scoring rule?\\n\\nScore: ' + score + '\\n\\n' + 'Feedback Text: ' + feedbackText);\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisScoringRule', {score: score, feedbackText: feedbackText}));\n\n        if (answer) {\n          // the author answered yes to delete the scoring rule\n          this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a new notification. Currently assumes this is a notification based on CRaterResult, but\n   * we can add different types in the future.\n   */\n  authoringAddNotification() {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // create a new notification\n      let newNotification = {\n        notificationType: 'CRaterResult',\n        enableCriteria: {\n          scoreSequence: ['', '']\n        },\n        isAmbient: false,\n        dismissCode: 'apple',\n        isNotifyTeacher: true,\n        isNotifyStudent: true,\n        notificationMessageToStudent: '{{username}}, ' + this.$translate('openResponse.youGotAScoreOf') + ' {{score}}. ' + this.$translate('openResponse.pleaseTalkToYourTeacher') + '.',\n        notificationMessageToTeacher: '{{username}} ' + this.$translate('openResponse.gotAScoreOf') + ' {{score}}.'\n      };\n\n      // add the new notification\n      this.authoringComponentContent.notificationSettings.notifications.push(newNotification);\n\n      // the author has made changes so we will save the component content\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Add a multiple attempt scoring rule\n   */\n  authoringAddMultipleAttemptScoringRule() {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // create a new multiple attempt scoring rule\n      var newMultipleAttemptScoringRule = {};\n      newMultipleAttemptScoringRule.scoreSequence = ['', ''];\n      newMultipleAttemptScoringRule.feedbackText = '';\n\n      // add the new multiple attempt scoring rule\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules.push(newMultipleAttemptScoringRule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Move a multiple attempt scoring rule up\n   * @param index\n   */\n  authoringViewMultipleAttemptScoringRuleUpClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // make sure the multiple attempt scoring rule is not already at the top\n      if (index != 0) {\n        // the multiple attempt scoring rule is not at the top\n\n        // get the multiple attempt scoring rule\n        var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n        // remove the multiple attempt scoring rule\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n        // add the multiple attempt scoring rule back at the position one index back\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index - 1, 0, multipleAttemptScoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a multiple attempt scoring rule down\n   * @param index the index of the multiple attempt scoring rule\n   */\n  authoringViewMultipleAttemptScoringRuleDownClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // make sure the multiple attempt scoring rule is not at the end\n      if (index != this.authoringComponentContent.cRater.multipleAttemptScoringRules.length - 1) {\n        // the multiple attempt scoring rule is not at the end\n\n        // get the multiple attempt scoring rule\n        var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n        // remove the multiple attempt scoring rule\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n        // add the multiple attempt scoring rule back at the position one index forward\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index + 1, 0, multipleAttemptScoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a multiple attempt scoring rule\n   * @param index the index of the mulitple attempt scoring rule\n   */\n  authoringViewMultipleAttemptScoringRuleDeleteClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // get the multiple attempt scoring rule\n      var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n      if (multipleAttemptScoringRule != null) {\n\n        // get the score sequence\n        var scoreSequence = multipleAttemptScoringRule.scoreSequence;\n        var previousScore = '';\n        var currentScore = '';\n\n        if (scoreSequence != null) {\n          previousScore = scoreSequence[0];\n          currentScore = scoreSequence[1];\n        }\n\n        // get the feedback text\n        var feedbackText = multipleAttemptScoringRule.feedbackText;\n\n        // make sure the author really wants to delete the multiple attempt scoring rule\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisMultipleAttemptScoringRule', {previousScore: previousScore, currentScore: currentScore, feedbackText: feedbackText}));\n\n        if (answer) {\n          // the author answered yes to delete the multiple attempt scoring rule\n          this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Move a notification up\n   * @param index of the notification\n   */\n  authoringViewNotificationUpClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // make sure the notification is not already at the top\n      if (index != 0) {\n        // the notification is not at the top\n\n        // get the notification\n        var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n        // remove the notification\n        this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n        // add the notification back at the position one index back\n        this.authoringComponentContent.notificationSettings.notifications.splice(index - 1, 0, notification);\n\n        // the author has made changes so we will save the component content\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a notification down\n   * @param index the index of the notification\n   */\n  authoringViewNotificationDownClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // make sure the notification is not at the end\n      if (index != this.authoringComponentContent.notificationSettings.notifications.length - 1) {\n        // the notification is not at the end\n\n        // get the notification\n        var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n        // remove the notification\n        this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n        // add the notification back at the position one index forward\n        this.authoringComponentContent.notificationSettings.notifications.splice(index + 1, 0, notification);\n\n        // the author has made changes so we will save the component content\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a notification\n   * @param index the index of the notification\n   */\n  authoringViewNotificationDeleteClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // get the notification\n      var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n      if (notification != null) {\n\n        // get the score sequence\n        var scoreSequence = notification.enableCriteria.scoreSequence;\n        var previousScore = '';\n        var currentScore = '';\n\n        if (scoreSequence != null) {\n          previousScore = scoreSequence[0];\n          currentScore = scoreSequence[1];\n        }\n\n        // make sure the author really wants to delete the notification\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisNotification', {previousScore: previousScore, currentScore: currentScore}));\n\n        if (answer) {\n          // the author answered yes to delete the notification\n          this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n          // the author has made changes so we will save the component content\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * The \"Enable CRater\" checkbox was clicked\n   */\n  authoringViewEnableCRaterClicked() {\n\n    if (this.authoringComponentContent.enableCRater) {\n      // CRater was turned on\n\n      if (this.authoringComponentContent.cRater == null) {\n        /*\n         * the cRater object does not exist in the component content\n         * so we will create it\n         */\n\n        // create the cRater object\n        var cRater = {};\n        cRater.itemType = 'CRATER';\n        cRater.itemId = '';\n        cRater.scoreOn = 'submit';\n        cRater.showScore = true;\n        cRater.showFeedback = true;\n        cRater.scoringRules = [];\n        cRater.enableMultipleAttemptScoringRules = false;\n        cRater.multipleAttemptScoringRules = []\n\n        // set the cRater object into the component content\n        this.authoringComponentContent.cRater = cRater;\n      }\n\n      // turn on the submit button\n      //this.authoringComponentContent.showSubmitButton = true;\n      this.setShowSubmitButtonValue(true);\n    } else {\n      // CRater was turned off\n\n      // turn off the submit button\n      this.setShowSubmitButtonValue(false);\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The \"Enable Multiple Attempt Feedback\" checkbox was clicked\n   */\n  enableMultipleAttemptScoringRulesClicked() {\n\n    // get the cRater object from the component content\n    var cRater = this.authoringComponentContent.cRater;\n\n    if (cRater != null && cRater.multipleAttemptScoringRules == null) {\n      /*\n       * the multiple attempt scoring rules array does not exist so\n       * we will create it\n       */\n      cRater.multipleAttemptScoringRules = [];\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The \"Enable Notifications\" checkbox was clicked\n   */\n  authoringViewEnableNotificationsClicked() {\n\n    if (this.authoringComponentContent.enableNotifications) {\n      // Notifications was turned on\n\n      if (this.authoringComponentContent.notificationSettings == null) {\n        /*\n         * the NotificationSettings object does not exist in the component content\n         * so we will create it\n         */\n        this.authoringComponentContent.notificationSettings = {\n          notifications: []\n        };\n      }\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * Returns all the revisions made by this user for the specified component\n   */\n  getRevisions() {\n    // get the component states for this component\n    return this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n  };\n\n  /**\n   * The import previous work checkbox was clicked\n   */\n  authoringImportPreviousWorkClicked() {\n\n    if (!this.authoringComponentContent.importPreviousWork) {\n      /*\n       * import previous work has been turned off so we will clear the\n       * import previous work node id, and import previous work\n       * component id\n       */\n      this.authoringComponentContent.importPreviousWorkNodeId = null;\n      this.authoringComponentContent.importPreviousWorkComponentId = null;\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The import previous work node id has changed\n   */\n  authoringImportPreviousWorkNodeIdChanged() {\n\n    if (this.authoringComponentContent.importPreviousWorkNodeId == null ||\n      this.authoringComponentContent.importPreviousWorkNodeId == '') {\n\n      /*\n       * the import previous work node id is null so we will also set the\n       * import previous component id to null\n       */\n      this.authoringComponentContent.importPreviousWorkComponentId = '';\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The import previous work component id has changed\n   */\n  authoringImportPreviousWorkComponentIdChanged() {\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Set the show submit button value\n   * @param show whether to show the submit button\n   */\n  setShowSubmitButtonValue(show) {\n\n    if (show == null || show == false) {\n      // we are hiding the submit button\n      this.authoringComponentContent.showSaveButton = false;\n      this.authoringComponentContent.showSubmitButton = false;\n    } else {\n      // we are showing the submit button\n      this.authoringComponentContent.showSaveButton = true;\n      this.authoringComponentContent.showSubmitButton = true;\n    }\n\n    /*\n     * notify the parent node that this component is changing its\n     * showSubmitButton value so that it can show save buttons on the\n     * step or sibling components accordingly\n     */\n    this.$scope.$emit('componentShowSubmitButtonValueChanged', {nodeId: this.nodeId, componentId: this.componentId, showSubmitButton: show});\n  }\n\n  /**\n   * The showSubmitButton value has changed\n   */\n  showSubmitButtonValueChanged() {\n\n    /*\n     * perform additional processing for when we change the showSubmitButton\n     * value\n     */\n    this.setShowSubmitButtonValue(this.authoringComponentContent.showSubmitButton);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get the import previous work node id\n   * @return the import previous work node id or null\n   */\n  getImportPreviousWorkNodeId() {\n    var importPreviousWorkNodeId = null;\n\n    if (this.componentContent != null && this.componentContent.importPreviousWorkNodeId != null) {\n      importPreviousWorkNodeId = this.componentContent.importPreviousWorkNodeId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        importPreviousWorkNodeId = this.componentContent.importWorkNodeId;\n      }\n    }\n\n    return importPreviousWorkNodeId;\n  }\n\n  /**\n   * Get the import previous work component id\n   * @return the import previous work component id or null\n   */\n  getImportPreviousWorkComponentId() {\n    var importPreviousWorkComponentId = null;\n\n    if (this.componentContent != null && this.componentContent.importPreviousWorkComponentId != null) {\n      var importPreviousWorkComponentId = this.componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        importPreviousWorkComponentId = this.componentContent.importWorkComponentId;\n      }\n    }\n\n    return importPreviousWorkComponentId;\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      let mergedResponse = '';\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n\n        if (componentState != null) {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            // get the student response\n            let response = studentData.response;\n\n            if (response != null && response != '') {\n              if (mergedResponse != '') {\n                // add a new line between the responses\n                mergedResponse += '\\n';\n              }\n\n              // append the response\n              mergedResponse += response;\n            }\n          }\n        }\n      }\n\n      if (mergedResponse != null && mergedResponse != '') {\n        // set the merged response into the merged component state\n        mergedComponentState.studentData = {};\n        mergedComponentState.studentData.response = mergedResponse;\n      }\n    }\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'importWork';\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The show JSON button was clicked to show or hide the JSON authoring\n   */\n  showJSONButtonClicked() {\n    // toggle the JSON authoring textarea\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n\n    if (this.jsonStringChanged && !this.showJSONAuthoring) {\n      /*\n       * the author has changed the JSON and has just closed the JSON\n       * authoring view so we will save the component\n       */\n      this.advancedAuthoringViewComponentChanged();\n\n      // scroll to the top of the component\n      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });\n\n      this.jsonStringChanged = false;\n    }\n  }\n\n  /**\n   * The author has changed the JSON manually in the advanced view\n   */\n  authoringJSONChanged() {\n    this.jsonStringChanged = true;\n  }\n\n  /**\n   * The Use Completion Criteria checkbox was clicked. We will toggle the\n   * completion criteria in the component content.\n   * @return False if we want to cancel the click and not perform any changes.\n   * True if we want to perform the changes.\n   */\n  useCustomCompletionCriteriaClicked() {\n    if (this.useCustomCompletionCriteria == false) {\n      /*\n       * The completion criteria was changed from true to false which\n       * means we will delete the completionCriteria object. We will confirm\n       * with the author that they want to delete the completion criteria.\n       */\n      let answer = confirm(this.$translate('areYouSureYouWantToDeleteTheCustomCompletionCriteria'));\n      if (!answer) {\n        // the author answered no so we will abort\n        this.useCustomCompletionCriteria = true;\n        return false;\n      }\n    }\n\n    if (this.useCustomCompletionCriteria) {\n      /*\n       * We are using a completion criteria so we will populate it if it\n       * doesn't already exist.\n       */\n      if (this.authoringComponentContent.completionCriteria == null) {\n        this.authoringComponentContent.completionCriteria = {\n          inOrder: true,\n          criteria: []\n        };\n      }\n    } else {\n      // we are not using a completion criteria so we will delete it\n      delete this.authoringComponentContent.completionCriteria;\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n    return true;\n  }\n\n  /**\n   * Move a completion criteria up.\n   * @param index The index of the completion criteria to move up.\n   */\n  moveCompletionCriteriaUp(index) {\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the criteria\n      let criteria = this.authoringComponentContent.completionCriteria.criteria[index];\n\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // insert the criteria one index back\n      this.authoringComponentContent.completionCriteria.criteria.splice(index - 1, 0, criteria);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a completion criteria down.\n   * @param index The index of the completion criteria to move down.\n   */\n  moveCompletionCriteriaDown(index) {\n    if (index < this.authoringComponentContent.completionCriteria.criteria.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the criteria\n      let criteria = this.authoringComponentContent.completionCriteria.criteria[index];\n\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // insert the criteria one index forward\n      this.authoringComponentContent.completionCriteria.criteria.splice(index + 1, 0, criteria);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a completion criteria.\n   */\n  authoringAddCompletionCriteria() {\n    let newCompletionCriteria = {\n      nodeId: this.nodeId,\n      componentId: this.componentId,\n      name: 'isSubmitted'\n    };\n    this.authoringComponentContent.completionCriteria.criteria.push(newCompletionCriteria);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a completion criteria.\n   * @param index The index of the completion criteria.\n   */\n  authoringDeleteCompletionCriteria(index) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisCompletionCriteria'));\n    if (answer) {\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if the item id is a valid CRater item id.\n   * @param itemId A string.\n   */\n  verifyCRaterItemId(itemId) {\n    // clear the Valid/Invalid text\n    this.cRaterItemIdIsValid = null;\n\n    // turn on the \"Verifying...\" text\n    this.isVerifyingCRaterItemId = true;\n\n    this.CRaterService.verifyCRaterItemId(itemId).then((isValid) => {\n      // turn off the \"Verifying...\" text\n      this.isVerifyingCRaterItemId = false;\n\n      // set the Valid/Invalid text\n      this.cRaterItemIdIsValid = isValid;\n    });\n  }\n};\n\nOpenResponseController.$inject = [\n  '$filter',\n  '$injector',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$scope',\n  'AnnotationService',\n  'ConfigService',\n  'CRaterService',\n  'NodeService',\n  'NotebookService',\n  'NotificationService',\n  'OpenResponseService',\n  'ProjectService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default OpenResponseController;\n"]}
-=======
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strict';\n\nclass OpenResponseController {\n\n  constructor($filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      AnnotationService,\n      ConfigService,\n      CRaterService,\n      NodeService,\n      NotificationService,\n      OpenResponseService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.CRaterService = CRaterService;\n    this.NodeService = NodeService;\n    this.NotificationService = NotificationService;\n    this.OpenResponseService = OpenResponseService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n\n    this.idToOrder = this.ProjectService.idToOrder;\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // holds the text that the student has typed\n    this.studentResponse = '';\n\n    // holds student attachments like assets\n    this.attachments = [];\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether the student work has changed since last submit\n    this.isSubmitDirty = false;\n\n    // message to show next to save/submit buttons\n    this.saveMessage = {\n      text: '',\n      time: ''\n    };\n\n    // whether this component is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // whether rich text editing is enabled\n    this.isRichTextEnabled = false;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // whether the prompt is shown or not\n    this.isPromptVisible = true;\n\n    // whether the save button is shown or not\n    this.isSaveButtonVisible = false;\n\n    // whether the submit button is shown or not\n    this.isSubmitButtonVisible = false;\n\n    // whether the submit button is disabled\n    this.isSubmitButtonDisabled = false;\n\n    // whether we're only showing the student work\n    this.onlyShowWork = false;\n\n    // the latest annotations\n    this.latestAnnotations = null;\n\n    // used to hold a message dialog if we need to use one\n    this.messageDialog = null;\n\n    // counter to keep track of the number of submits\n    this.submitCounter = 0;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // whether this component uses a custom completion criteria\n    this.useCustomCompletionCriteria = false;\n\n    // whether we are currently verifying a CRater item id\n    this.isVerifyingCRaterItemId = false;\n\n    // whether the CRater item id is valid\n    this.cRaterItemIdIsValid = null;\n\n    //var scope = this;\n    let themePath = this.ProjectService.getThemePath();\n\n    // TODO: make toolbar items and plugins customizable by authors (OR strip down to only special characters, support for equations)\n    // Rich text editor options\n    this.tinymceOptions = {\n      //onChange: function(e) {\n      //scope.studentDataChanged();\n      //},\n      menubar: false,\n      plugins: 'link image media autoresize', //imagetools\n      toolbar: 'undo redo | bold italic | superscript subscript | bullist numlist | alignleft aligncenter alignright | link image media',\n      autoresize_bottom_margin: '0',\n      autoresize_min_height: '100',\n      image_advtab: true,\n      content_css: themePath + '/style/tinymce.css',\n      setup: function (ed) {\n        ed.on('focus', function (e) {\n          $(e.target.editorContainer).addClass('input--focused').parent().addClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').addClass('input-label--focused');\n        });\n\n        ed.on('blur', function (e) {\n          $(e.target.editorContainer).removeClass('input--focused').parent().removeClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').removeClass('input-label--focused');\n        });\n      }\n    };\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      {\n        type: 'OpenResponse'\n      }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n\n      if (this.mode === 'student') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n      } else if (this.mode === 'grading') {\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'onlyShowWork') {\n        this.onlyShowWork = true;\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'showPreviousWork') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n      } else if (this.mode === 'authoring') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          // inject the asset paths into the new component content\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n\n          /*\n           * reset the values so that the preview is refreshed with\n           * the new content\n           */\n          this.submitCounter = 0;\n          this.studentResponse = '';\n          this.latestAnnotations = null;\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.isSaveButtonVisible = this.componentContent.showSaveButton;\n          this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n          if (this.componentContent.starterSentence != null) {\n            /*\n             * the student has not done any work and there is a starter sentence\n             * so we will populate the textarea with the starter sentence\n             */\n            this.studentResponse = this.componentContent.starterSentence;\n          }\n        }.bind(this), true);\n      }\n\n      var componentState = null;\n\n      // set whether rich text is enabled\n      this.isRichTextEnabled = this.componentContent.isRichTextEnabled;\n\n      // set whether studentAttachment is enabled\n      this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n      if (this.componentContent.completionCriteria != null) {\n        this.useCustomCompletionCriteria = true;\n      }\n\n      // get the component state from the scope\n      componentState = this.$scope.componentState;\n\n      if (this.mode == 'student') {\n        if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {\n          // we will show work from another component\n          this.handleConnectedComponents();\n        }  else if (this.OpenResponseService.componentStateHasStudentWork(componentState, this.componentContent)) {\n          /*\n           * the student has work so we will populate the work into this\n           * component\n           */\n          this.setStudentWork(componentState);\n        } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n          // we will import work from another component\n          this.handleConnectedComponents();\n        } else if (componentState == null) {\n          // check if we need to import work\n\n          var importPreviousWorkNodeId = this.getImportPreviousWorkNodeId();\n          var importPreviousWorkComponentId = this.getImportPreviousWorkComponentId();\n\n          if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n            // import the work from the other component\n            this.importWork();\n          } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n            /*\n             * the student does not have any work and there are connected\n             * components so we will get the work from the connected\n             * components\n             */\n            this.handleConnectedComponents();\n          } else if (this.componentContent.starterSentence != null) {\n            /*\n             * the student has not done any work and there is a starter sentence\n             * so we will populate the textarea with the starter sentence\n             */\n            this.studentResponse = this.componentContent.starterSentence;\n          }\n        }\n      } else {\n        // populate the student work into this component\n        this.setStudentWork(componentState);\n      }\n\n      // check if the student has used up all of their submits\n      if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n        /*\n         * the student has used up all of their chances to submit so we\n         * will disable the submit button\n         */\n        this.isSubmitButtonDisabled = true;\n      }\n\n      // check if we need to lock this component\n      this.calculateDisabled();\n\n      if (this.$scope.$parent.nodeController != null) {\n        // register this component with the parent node\n        this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n      }\n    }\n\n    //$('.openResponse').off('dragover').off('drop');\n\n    /**\n     * Returns true iff there is student work that hasn't been saved yet\n     */\n    this.$scope.isDirty = function() {\n      return this.$scope.openResponseController.isDirty;\n    }.bind(this);\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @param isSubmit boolean whether the request is coming from a submit\n     * action (optional; default is false)\n     * @return a promise of a component state containing the student data\n     */\n    this.$scope.getComponentState = function(isSubmit) {\n      var deferred = this.$q.defer();\n      let getState = false;\n      let action = 'change';\n\n      if (isSubmit) {\n        if (this.$scope.openResponseController.isSubmitDirty) {\n          getState = true;\n          action = 'submit';\n        }\n      } else {\n        if (this.$scope.openResponseController.isDirty) {\n          getState = true;\n          action = 'save';\n        }\n      }\n\n      if (getState) {\n        // create a component state populated with the student data\n        this.$scope.openResponseController.createComponentState(action).then((componentState) => {\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', function(event, args) {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n\n        // trigger the submit\n        var submitTriggeredBy = 'nodeSubmitButton';\n        this.submit(submitTriggeredBy);\n      }\n    }.bind(this));\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', angular.bind(this, function(event, args) {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // set isDirty to false because the component state was just saved and notify node\n        this.isDirty = false;\n        this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: false});\n\n        let isAutoSave = componentState.isAutoSave;\n        let isSubmit = componentState.isSubmit;\n        let serverSaveTime = componentState.serverSaveTime;\n        let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n\n        // set save message\n        if (isSubmit) {\n          this.setSaveMessage(this.$translate('SUBMITTED'), clientSaveTime);\n\n          this.lockIfNecessary();\n\n          // set isSubmitDirty to false because the component state was just submitted and notify node\n          this.isSubmitDirty = false;\n          this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        } else if (isAutoSave) {\n          this.setSaveMessage(this.$translate('AUTO_SAVED'), clientSaveTime);\n        } else {\n          this.setSaveMessage(this.$translate('SAVED'), clientSaveTime);\n        }\n      }\n    }));\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', function(event, args) {\n\n    }.bind(this));\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n\n    // load script for this component, if any\n    let script = this.componentContent.script;\n    if (script != null) {\n      this.ProjectService.retrieveScript(script).then((script) => {\n        new Function(script).call(this);\n      });\n    }\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        var response = studentData.response;\n\n        if (response != null) {\n          // populate the text the student previously typed\n          this.studentResponse = response;\n        }\n\n        var submitCounter = studentData.submitCounter;\n\n        if (submitCounter != null) {\n          // populate the submit counter\n          this.submitCounter = submitCounter;\n        }\n\n        var attachments = studentData.attachments;\n\n        if (attachments != null) {\n          this.attachments = attachments;\n        }\n\n        this.processLatestSubmit();\n      }\n    }\n  };\n\n  /**\n   * Check if latest component state is a submission and set isSubmitDirty accordingly\n   */\n  processLatestSubmit() {\n    let latestState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n    if (latestState) {\n      let serverSaveTime = latestState.serverSaveTime;\n      let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n      if (latestState.isSubmit) {\n        // latest state is a submission, so set isSubmitDirty to false and notify node\n        this.isSubmitDirty = false;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SUBMITTED'), clientSaveTime);\n      } else {\n        // latest state is not a submission, so set isSubmitDirty to true and notify node\n        this.isSubmitDirty = true;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SAVED'), clientSaveTime);\n      }\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n    this.isSubmit = false;\n\n    if (this.mode === 'authoring') {\n      /*\n       * we are in authoring mode so we will set isDirty to false here\n       * because the 'componentSaveTriggered' event won't work in\n       * authoring mode\n       */\n      this.isDirty = false;\n    }\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    // trigger the submit\n    var submitTriggeredBy = 'componentSubmitButton';\n    this.submit(submitTriggeredBy);\n  };\n\n  /**\n   * A submit was triggered by the component submit button or node submit button\n   * @param submitTriggeredBy what triggered the submit\n   * e.g. 'componentSubmitButton' or 'nodeSubmitButton'\n   */\n  submit(submitTriggeredBy) {\n\n    if (this.isSubmitDirty) {\n      // the student has unsubmitted work\n\n      var performSubmit = true;\n\n      if (this.componentContent.maxSubmitCount != null) {\n        // there is a max submit count\n\n        // calculate the number of submits this student has left\n        var numberOfSubmitsLeft = this.componentContent.maxSubmitCount - this.submitCounter;\n\n        var message = '';\n\n        if (numberOfSubmitsLeft <= 0) {\n\n          // the student does not have any more chances to submit\n          alert(this.$translate('openResponse.youHaveNoMoreChances'));\n          performSubmit = false;\n        } else if (numberOfSubmitsLeft == 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('openResponse.youHaveOneChance', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          //message = 'You have ' + numberOfSubmitsLeft + ' chance to receive feedback on your answer so this this should be your best work.\\n\\nAre you ready to receive feedback on this answer?';\n          performSubmit = confirm(message);\n        } else if (numberOfSubmitsLeft > 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('openResponse.youHaveMultipleChances', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          //message = 'You have ' + numberOfSubmitsLeft + ' chances to receive feedback on your answer so this this should be your best work.\\n\\nAre you ready to receive feedback on this answer?';\n          performSubmit = confirm(message);\n        }\n      }\n\n      if (performSubmit) {\n\n        /*\n         * set isSubmit to true so that when the component state is\n         * created, it will know that is a submit component state\n         * instead of just a save component state\n         */\n        this.isSubmit = true;\n\n        // increment the submit counter\n        this.incrementSubmitCounter();\n\n        // check if the student has used up all of their submits\n        if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n          /*\n           * the student has used up all of their submits so we will\n           * disable the submit button\n           */\n          this.isSubmitButtonDisabled = true;\n        }\n\n        if (this.mode === 'authoring') {\n          /*\n           * we are in authoring mode so we will set values appropriately\n           * here because the 'componentSubmitTriggered' event won't\n           * work in authoring mode\n           */\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.createComponentState('submit');\n        }\n\n        if (submitTriggeredBy == null || submitTriggeredBy === 'componentSubmitButton') {\n          // tell the parent node that this component wants to submit\n          this.$scope.$emit('componentSubmitTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n        } else if (submitTriggeredBy === 'nodeSubmitButton') {\n          // nothing extra needs to be performed\n        }\n      } else {\n        /*\n         * the student has cancelled the submit so if a component state\n         * is created, it will just be a regular save and not submit\n         */\n        this.isSubmit = false;\n      }\n    }\n  }\n\n  /**\n   * Increment the submit counter\n   */\n  incrementSubmitCounter() {\n    this.submitCounter++;\n  }\n\n  lockIfNecessary() {\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flags so we will know we need to save or submit the\n     * student work later\n     */\n    this.isDirty = true;\n    this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: true});\n\n    this.isSubmitDirty = true;\n    this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n\n    // clear out the save message\n    this.setSaveMessage('', null);\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Get the student response\n   */\n  getStudentResponse() {\n    return this.studentResponse;\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    var deferred = this.$q.defer();\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    // set the response into the component state\n    var studentData = {};\n\n    // get the text the student typed\n    var response = this.getStudentResponse();\n\n    studentData.response = response;\n    studentData.attachments = angular.copy(this.attachments);  // create a copy without reference to original array\n\n    // set the submit counter\n    studentData.submitCounter = this.submitCounter;\n\n    // set the flag for whether the student submitted this work\n    componentState.isSubmit = this.isSubmit;\n\n    // set the student data into the component state\n    componentState.studentData = studentData;\n\n    // set the component type\n    componentState.componentType = 'OpenResponse';\n\n    // set the node id\n    componentState.nodeId = this.nodeId;\n\n    // set the component id\n    componentState.componentId = this.componentId;\n\n    /*\n     * reset the isSubmit value so that the next component state\n     * doesn't maintain the same value\n     */\n    this.isSubmit = false;\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n\n    var performCRaterScoring = false;\n\n    // determine if we need to perform CRater scoring\n    if (action == 'submit' && componentState.isSubmit) {\n      if (this.isCRaterScoreOnSubmit(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    } else if (action == 'save') {\n      if (this.isCRaterScoreOnSave(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    } else if (action == 'change' || action == null) {\n      if (this.isCRaterScoreOnChange(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    }\n\n    if (performCRaterScoring) {\n      // we need to perform CRater scoring\n\n      var cRaterItemType = this.CRaterService.getCRaterItemType(this.componentContent);\n      var cRaterItemId = this.CRaterService.getCRaterItemId(this.componentContent);\n      var cRaterRequestType = 'scoring';\n      var cRaterResponseId = new Date().getTime();\n      var studentData = this.studentResponse;\n\n      /*\n       * display a dialog message while the student waits for their work\n       * to be scored by CRater\n       */\n      this.$mdDialog.show({\n        template: '<md-dialog aria-label=\"' + this.$translate('openResponse.pleaseWait') + '\"><md-dialog-content><div class=\"md-dialog-content\">' + this.$translate('openResponse.pleaseWaitWeAreScoringYourWork') + '</div></md-dialog-content></md-dialog>',\n        escapeToClose: false\n      });\n\n      // make the CRater request to score the student data\n      this.CRaterService.makeCRaterRequest(cRaterItemType, cRaterItemId, cRaterRequestType, cRaterResponseId, studentData).then((result) => {\n\n        if (result != null) {\n\n          // get the CRater response\n          var data = result.data;\n\n          if (data != null) {\n\n            /*\n             * annotations we put in the component state will be\n             * removed from the component state and saved separately\n             */\n            componentState.annotations = [];\n\n            // get the CRater score\n            let score = data.score;\n            let concepts = data.concepts;\n            let previousScore = null;\n\n            if (score != null) {\n\n              // create the auto score annotation\n              let autoScoreAnnotationData = {};\n              autoScoreAnnotationData.value = score;\n              autoScoreAnnotationData.maxAutoScore = this.ProjectService.getMaxScoreForComponent(this.nodeId, this.componentId);\n              autoScoreAnnotationData.concepts = concepts;\n              autoScoreAnnotationData.autoGrader = 'cRater';\n\n              let autoScoreAnnotation = this.createAutoScoreAnnotation(autoScoreAnnotationData);\n\n              let annotationGroupForScore = null;\n\n              if (this.$scope.$parent.nodeController != null) {\n                // get the previous score and comment annotations\n                let latestAnnotations = this.$scope.$parent.nodeController.getLatestComponentAnnotations(this.componentId);\n\n                if (latestAnnotations != null && latestAnnotations.score != null &&\n                  latestAnnotations.score.data != null) {\n\n                  // get the previous score annotation value\n                  previousScore = latestAnnotations.score.data.value;\n                }\n\n                if (this.componentContent.enableGlobalAnnotations && this.componentContent.globalAnnotationSettings != null) {\n\n                  let globalAnnotationMaxCount = 0;\n                  if (this.componentContent.globalAnnotationSettings.globalAnnotationMaxCount != null) {\n                    globalAnnotationMaxCount = this.componentContent.globalAnnotationSettings.globalAnnotationMaxCount;\n                  }\n                  // get the annotation properties for the score that the student got.\n                  annotationGroupForScore = this.ProjectService.getGlobalAnnotationGroupByScore(this.componentContent, previousScore, score);\n\n                  // check if we need to apply this globalAnnotationSetting to this annotation: we don't need to if we've already reached the maxCount\n                  if (annotationGroupForScore != null) {\n                    let globalAnnotationGroupsByNodeIdAndComponentId = this.AnnotationService.getAllGlobalAnnotationGroups(this.nodeId, this.componentId);\n                    annotationGroupForScore.annotationGroupCreatedTime = autoScoreAnnotation.clientSaveTime;  // save annotation creation time\n\n                    if (globalAnnotationGroupsByNodeIdAndComponentId.length >= globalAnnotationMaxCount) {\n                      // we've already applied this annotation properties to maxCount annotations, so we don't need to apply it any more.\n                      annotationGroupForScore = null;\n                    }\n                  }\n\n                  if (annotationGroupForScore != null && annotationGroupForScore.isGlobal && annotationGroupForScore.unGlobalizeCriteria != null) {\n                    // check if this annotation is global and what criteria needs to be met to un-globalize.\n                    annotationGroupForScore.unGlobalizeCriteria.map( (unGlobalizeCriteria) => {\n                      // if the un-globalize criteria is time-based (e.g. isVisitedAfter, isRevisedAfter, isVisitedAndRevisedAfter, etc), store the timestamp of this annotation in the criteria\n                      // so we can compare it when we check for criteria satisfaction.\n                      if (unGlobalizeCriteria.params != null) {\n                        unGlobalizeCriteria.params.criteriaCreatedTimestamp = autoScoreAnnotation.clientSaveTime;  // save annotation creation time to criteria\n                      }\n                    });\n                  }\n\n                  if (annotationGroupForScore != null) {\n                    // copy over the annotation properties into the autoScoreAnnotation's data\n                    angular.merge(autoScoreAnnotation.data, annotationGroupForScore);\n                  }\n                }\n              }\n\n              componentState.annotations.push(autoScoreAnnotation);\n\n              if (this.mode === 'authoring') {\n                if (this.latestAnnotations == null) {\n                  this.latestAnnotations = {};\n                }\n\n                /*\n                 * we are in the authoring view so we will set the\n                 * latest score annotation manually\n                 */\n                this.latestAnnotations.score = autoScoreAnnotation;\n              }\n\n              var autoComment = null;\n\n              // get the submit counter\n              var submitCounter = this.submitCounter;\n\n              if (this.componentContent.cRater.enableMultipleAttemptScoringRules && submitCounter > 1) {\n                /*\n                 * this step has multiple attempt scoring rules and this is\n                 * a subsequent submit\n                 */\n                // get the feedback based upon the previous score and current score\n                autoComment = this.CRaterService.getMultipleAttemptCRaterFeedbackTextByScore(this.componentContent, previousScore, score);\n              } else {\n                // get the feedback text\n                autoComment = this.CRaterService.getCRaterFeedbackTextByScore(this.componentContent, score);\n              }\n\n              if (autoComment != null) {\n                // create the auto comment annotation\n                var autoCommentAnnotationData = {};\n                autoCommentAnnotationData.value = autoComment;\n                autoCommentAnnotationData.concepts = concepts;\n                autoCommentAnnotationData.autoGrader = 'cRater';\n\n                var autoCommentAnnotation = this.createAutoCommentAnnotation(autoCommentAnnotationData);\n\n                if (this.componentContent.enableGlobalAnnotations) {\n                  if (annotationGroupForScore != null) {\n                    // copy over the annotation properties into the autoCommentAnnotation's data\n                    angular.merge(autoCommentAnnotation.data, annotationGroupForScore);\n                  }\n                }\n                componentState.annotations.push(autoCommentAnnotation);\n\n                if (this.mode === 'authoring') {\n                  if (this.latestAnnotations == null) {\n                    this.latestAnnotations = {};\n                  }\n\n                  /*\n                   * we are in the authoring view so we will set the\n                   * latest comment annotation manually\n                   */\n                  this.latestAnnotations.comment = autoCommentAnnotation;\n                }\n              }\n              if (this.componentContent.enableNotifications) {\n                // get the notification properties for the score that the student got.\n                let notificationForScore = this.ProjectService.getNotificationByScore(this.componentContent, previousScore, score);\n\n                if (notificationForScore != null) {\n                  notificationForScore.score = score;\n                  notificationForScore.nodeId = this.nodeId;\n                  notificationForScore.componentId = this.componentId;\n                  this.NotificationService.sendNotificationForScore(notificationForScore);\n                }\n              }\n\n              // display global annotations dialog if needed\n              if (this.componentContent.enableGlobalAnnotations && annotationGroupForScore != null && annotationGroupForScore.isGlobal && annotationGroupForScore.isPopup) {\n                this.$scope.$emit('displayGlobalAnnotations');\n              }\n            }\n          }\n        }\n\n        /*\n         * hide the dialog that tells the student to wait since\n         * the work has been scored.\n         */\n        this.$mdDialog.hide();\n\n        // resolve the promise now that we are done performing additional processing\n        deferred.resolve(componentState);\n      });\n    } else if (this.ProjectService.hasAdditionalProcessingFunctions(this.nodeId, this.componentId)) {\n      // if there are any additionalProcessingFunctions for this node and component, call all of them\n      let additionalProcessingFunctions = this.ProjectService.getAdditionalProcessingFunctions(this.nodeId, this.componentId);\n      let allPromises = [];\n      for (let i = 0; i < additionalProcessingFunctions.length; i++) {\n        let additionalProcessingFunction = additionalProcessingFunctions[i];\n        let defer = this.$q.defer();\n        let promise = defer.promise;\n        allPromises.push(promise);\n        additionalProcessingFunction(defer, componentState, action);\n      }\n      this.$q.all(allPromises).then(() => {\n        deferred.resolve(componentState);\n      });\n    } else {\n      /*\n       * we don't need to perform any additional processing so we can resolve\n       * the promise immediately\n       */\n      deferred.resolve(componentState);\n    }\n  }\n\n  /**\n   * Create an auto score annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto score annotation\n   */\n  createAutoScoreAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto score annotation\n    var annotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Create an auto comment annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto comment annotation\n   */\n  createAutoCommentAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto comment annotation\n    var annotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the component after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n    }\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  removeAttachment(attachment) {\n    if (this.attachments.indexOf(attachment) != -1) {\n      this.attachments.splice(this.attachments.indexOf(attachment), 1);\n      this.studentDataChanged();\n      // YOU ARE NOW FREEEEEEEEE!\n    }\n  };\n\n  /**\n   * Attach student asset to this Component's attachments\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          var attachment = {\n            studentAssetId: copiedAsset.id,\n            iconURL: copiedAsset.iconURL\n          };\n\n          this.attachments.push(attachment);\n          this.studentDataChanged();\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the number of rows for the textarea\n   */\n  getNumRows() {\n    var numRows = null;\n\n    if (this.componentContent != null) {\n      numRows = this.componentContent.numRows;\n    }\n\n    return numRows;\n  };\n\n  /**\n   * Get the number of columns for the textarea\n   */\n  getNumColumns() {\n    var numColumns = null;\n\n    if (this.componentContent != null) {\n      numColumns = this.componentContent.numColumns;\n    }\n\n    return numColumns;\n  };\n\n  /**\n   * Get the text the student typed\n   */\n  getResponse() {\n    var response = null;\n\n    if (this.studentResponse != null) {\n      response = this.studentResponse;\n    }\n\n    return response;\n  };\n\n  /**\n   * Import work from another component\n   */\n  importWork() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // get the import previous work node id and component id\n      var importPreviousWorkNodeId = componentContent.importPreviousWorkNodeId;\n      var importPreviousWorkComponentId = componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        if (componentContent.importWorkNodeId != null && componentContent.importWorkNodeId != '') {\n          importPreviousWorkNodeId = componentContent.importWorkNodeId;\n        }\n      }\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        if (componentContent.importWorkComponentId != null && componentContent.importWorkComponentId != '') {\n          importPreviousWorkComponentId = componentContent.importWorkComponentId;\n        }\n      }\n\n      if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importPreviousWorkNodeId, importPreviousWorkComponentId);\n\n          if (importWorkComponentState != null) {\n            /*\n             * populate a new component state with the work from the\n             * imported component state\n             */\n            var populatedComponentState = this.OpenResponseService.populateComponentState(importWorkComponentState);\n\n            // populate the component state into this component\n            this.setStudentWork(populatedComponentState);\n\n            // make the work dirty so that it gets saved\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * Get all the step node ids in the project\n   * @returns all the step node ids\n   */\n  getStepNodeIds() {\n    var stepNodeIds = this.ProjectService.getNodeIds();\n\n    return stepNodeIds;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Set the message next to the save button\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setSaveMessage(message, time) {\n    this.saveMessage.text = message;\n    this.saveMessage.time = time;\n  };\n\n  /**\n   * Check if CRater is enabled for this component\n   * @returns whether CRater is enabled for this component\n   */\n  isCRaterEnabled() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterEnabled(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on save\n   * @returns whether CRater is set to score on save\n   */\n  isCRaterScoreOnSave() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSave(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on submit\n   * @returns whether CRater is set to score on submit\n   */\n  isCRaterScoreOnSubmit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSubmit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on change\n   * @returns whether CRater is set to score on change\n   */\n  isCRaterScoreOnChange() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnChange(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score when the student exits the step\n   * @returns whether CRater is set to score when the student exits the step\n   */\n  isCRaterScoreOnExit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnExit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    this.exitListener = this.$scope.$on('exit', (event, args) => {\n\n    });\n  };\n\n  /**\n   * Add a scoring rule\n   */\n  authoringAddScoringRule() {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // create a scoring rule object\n      var newScoringRule = {};\n      newScoringRule.score = '';\n      newScoringRule.feedbackText = '';\n\n      // add the new scoring rule object\n      this.authoringComponentContent.cRater.scoringRules.push(newScoringRule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Move a scoring rule up\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleUpClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // make sure the scoring rule is not already at the top\n      if (index != 0) {\n        // the scoring rule is not at the top so we can move it up\n\n        // get the scoring rule\n        var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n        // remove the scoring rule\n        this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n        // add the scoring rule back at the position one index back\n        this.authoringComponentContent.cRater.scoringRules.splice(index - 1, 0, scoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a scoring rule down\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleDownClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // make sure the scoring rule is not already at the end\n      if (index != this.authoringComponentContent.cRater.scoringRules.length - 1) {\n\n        // get the scoring rule\n        var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n        // remove the scoring rule\n        this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n        // add the scoring rule back at the position one index forward\n        this.authoringComponentContent.cRater.scoringRules.splice(index + 1, 0, scoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a scoring rule\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleDeleteClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // get the scoring rule\n      var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n      if (scoringRule != null) {\n\n        // get the score and feedback text\n        var score = scoringRule.score;\n        var feedbackText = scoringRule.feedbackText;\n\n        // make sure the author really wants to delete the scoring rule\n        //var answer = confirm('Are you sure you want to delete this scoring rule?\\n\\nScore: ' + score + '\\n\\n' + 'Feedback Text: ' + feedbackText);\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisScoringRule', {score: score, feedbackText: feedbackText}));\n\n        if (answer) {\n          // the author answered yes to delete the scoring rule\n          this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a new notification. Currently assumes this is a notification based on CRaterResult, but\n   * we can add different types in the future.\n   */\n  authoringAddNotification() {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // create a new notification\n      let newNotification = {\n        notificationType: 'CRaterResult',\n        enableCriteria: {\n          scoreSequence: ['', '']\n        },\n        isAmbient: false,\n        dismissCode: 'apple',\n        isNotifyTeacher: true,\n        isNotifyStudent: true,\n        notificationMessageToStudent: '{{username}}, ' + this.$translate('openResponse.youGotAScoreOf') + ' {{score}}. ' + this.$translate('openResponse.pleaseTalkToYourTeacher') + '.',\n        notificationMessageToTeacher: '{{username}} ' + this.$translate('openResponse.gotAScoreOf') + ' {{score}}.'\n      };\n\n      // add the new notification\n      this.authoringComponentContent.notificationSettings.notifications.push(newNotification);\n\n      // the author has made changes so we will save the component content\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Add a multiple attempt scoring rule\n   */\n  authoringAddMultipleAttemptScoringRule() {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // create a new multiple attempt scoring rule\n      var newMultipleAttemptScoringRule = {};\n      newMultipleAttemptScoringRule.scoreSequence = ['', ''];\n      newMultipleAttemptScoringRule.feedbackText = '';\n\n      // add the new multiple attempt scoring rule\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules.push(newMultipleAttemptScoringRule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Move a multiple attempt scoring rule up\n   * @param index\n   */\n  authoringViewMultipleAttemptScoringRuleUpClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // make sure the multiple attempt scoring rule is not already at the top\n      if (index != 0) {\n        // the multiple attempt scoring rule is not at the top\n\n        // get the multiple attempt scoring rule\n        var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n        // remove the multiple attempt scoring rule\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n        // add the multiple attempt scoring rule back at the position one index back\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index - 1, 0, multipleAttemptScoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a multiple attempt scoring rule down\n   * @param index the index of the multiple attempt scoring rule\n   */\n  authoringViewMultipleAttemptScoringRuleDownClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // make sure the multiple attempt scoring rule is not at the end\n      if (index != this.authoringComponentContent.cRater.multipleAttemptScoringRules.length - 1) {\n        // the multiple attempt scoring rule is not at the end\n\n        // get the multiple attempt scoring rule\n        var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n        // remove the multiple attempt scoring rule\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n        // add the multiple attempt scoring rule back at the position one index forward\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index + 1, 0, multipleAttemptScoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a multiple attempt scoring rule\n   * @param index the index of the mulitple attempt scoring rule\n   */\n  authoringViewMultipleAttemptScoringRuleDeleteClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // get the multiple attempt scoring rule\n      var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n      if (multipleAttemptScoringRule != null) {\n\n        // get the score sequence\n        var scoreSequence = multipleAttemptScoringRule.scoreSequence;\n        var previousScore = '';\n        var currentScore = '';\n\n        if (scoreSequence != null) {\n          previousScore = scoreSequence[0];\n          currentScore = scoreSequence[1];\n        }\n\n        // get the feedback text\n        var feedbackText = multipleAttemptScoringRule.feedbackText;\n\n        // make sure the author really wants to delete the multiple attempt scoring rule\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisMultipleAttemptScoringRule', {previousScore: previousScore, currentScore: currentScore, feedbackText: feedbackText}));\n\n        if (answer) {\n          // the author answered yes to delete the multiple attempt scoring rule\n          this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Move a notification up\n   * @param index of the notification\n   */\n  authoringViewNotificationUpClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // make sure the notification is not already at the top\n      if (index != 0) {\n        // the notification is not at the top\n\n        // get the notification\n        var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n        // remove the notification\n        this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n        // add the notification back at the position one index back\n        this.authoringComponentContent.notificationSettings.notifications.splice(index - 1, 0, notification);\n\n        // the author has made changes so we will save the component content\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a notification down\n   * @param index the index of the notification\n   */\n  authoringViewNotificationDownClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // make sure the notification is not at the end\n      if (index != this.authoringComponentContent.notificationSettings.notifications.length - 1) {\n        // the notification is not at the end\n\n        // get the notification\n        var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n        // remove the notification\n        this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n        // add the notification back at the position one index forward\n        this.authoringComponentContent.notificationSettings.notifications.splice(index + 1, 0, notification);\n\n        // the author has made changes so we will save the component content\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a notification\n   * @param index the index of the notification\n   */\n  authoringViewNotificationDeleteClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // get the notification\n      var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n      if (notification != null) {\n\n        // get the score sequence\n        var scoreSequence = notification.enableCriteria.scoreSequence;\n        var previousScore = '';\n        var currentScore = '';\n\n        if (scoreSequence != null) {\n          previousScore = scoreSequence[0];\n          currentScore = scoreSequence[1];\n        }\n\n        // make sure the author really wants to delete the notification\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisNotification', {previousScore: previousScore, currentScore: currentScore}));\n\n        if (answer) {\n          // the author answered yes to delete the notification\n          this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n          // the author has made changes so we will save the component content\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * The \"Enable CRater\" checkbox was clicked\n   */\n  authoringViewEnableCRaterClicked() {\n\n    if (this.authoringComponentContent.enableCRater) {\n      // CRater was turned on\n\n      if (this.authoringComponentContent.cRater == null) {\n        /*\n         * the cRater object does not exist in the component content\n         * so we will create it\n         */\n\n        // create the cRater object\n        var cRater = {};\n        cRater.itemType = 'CRATER';\n        cRater.itemId = '';\n        cRater.scoreOn = 'submit';\n        cRater.showScore = true;\n        cRater.showFeedback = true;\n        cRater.scoringRules = [];\n        cRater.enableMultipleAttemptScoringRules = false;\n        cRater.multipleAttemptScoringRules = []\n\n        // set the cRater object into the component content\n        this.authoringComponentContent.cRater = cRater;\n      }\n\n      // turn on the submit button\n      //this.authoringComponentContent.showSubmitButton = true;\n      this.setShowSubmitButtonValue(true);\n    } else {\n      // CRater was turned off\n\n      // turn off the submit button\n      this.setShowSubmitButtonValue(false);\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The \"Enable Multiple Attempt Feedback\" checkbox was clicked\n   */\n  enableMultipleAttemptScoringRulesClicked() {\n\n    // get the cRater object from the component content\n    var cRater = this.authoringComponentContent.cRater;\n\n    if (cRater != null && cRater.multipleAttemptScoringRules == null) {\n      /*\n       * the multiple attempt scoring rules array does not exist so\n       * we will create it\n       */\n      cRater.multipleAttemptScoringRules = [];\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The \"Enable Notifications\" checkbox was clicked\n   */\n  authoringViewEnableNotificationsClicked() {\n\n    if (this.authoringComponentContent.enableNotifications) {\n      // Notifications was turned on\n\n      if (this.authoringComponentContent.notificationSettings == null) {\n        /*\n         * the NotificationSettings object does not exist in the component content\n         * so we will create it\n         */\n        this.authoringComponentContent.notificationSettings = {\n          notifications: []\n        };\n      }\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * Returns all the revisions made by this user for the specified component\n   */\n  getRevisions() {\n    // get the component states for this component\n    return this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n  };\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Set the show submit button value\n   * @param show whether to show the submit button\n   */\n  setShowSubmitButtonValue(show) {\n\n    if (show == null || show == false) {\n      // we are hiding the submit button\n      this.authoringComponentContent.showSaveButton = false;\n      this.authoringComponentContent.showSubmitButton = false;\n    } else {\n      // we are showing the submit button\n      this.authoringComponentContent.showSaveButton = true;\n      this.authoringComponentContent.showSubmitButton = true;\n    }\n\n    /*\n     * notify the parent node that this component is changing its\n     * showSubmitButton value so that it can show save buttons on the\n     * step or sibling components accordingly\n     */\n    this.$scope.$emit('componentShowSubmitButtonValueChanged', {nodeId: this.nodeId, componentId: this.componentId, showSubmitButton: show});\n  }\n\n  /**\n   * The showSubmitButton value has changed\n   */\n  showSubmitButtonValueChanged() {\n\n    /*\n     * perform additional processing for when we change the showSubmitButton\n     * value\n     */\n    this.setShowSubmitButtonValue(this.authoringComponentContent.showSubmitButton);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get the import previous work node id\n   * @return the import previous work node id or null\n   */\n  getImportPreviousWorkNodeId() {\n    var importPreviousWorkNodeId = null;\n\n    if (this.componentContent != null && this.componentContent.importPreviousWorkNodeId != null) {\n      importPreviousWorkNodeId = this.componentContent.importPreviousWorkNodeId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        importPreviousWorkNodeId = this.componentContent.importWorkNodeId;\n      }\n    }\n\n    return importPreviousWorkNodeId;\n  }\n\n  /**\n   * Get the import previous work component id\n   * @return the import previous work component id or null\n   */\n  getImportPreviousWorkComponentId() {\n    var importPreviousWorkComponentId = null;\n\n    if (this.componentContent != null && this.componentContent.importPreviousWorkComponentId != null) {\n      var importPreviousWorkComponentId = this.componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        importPreviousWorkComponentId = this.componentContent.importWorkComponentId;\n      }\n    }\n\n    return importPreviousWorkComponentId;\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      let mergedResponse = '';\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n\n        if (componentState != null) {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            // get the student response\n            let response = studentData.response;\n\n            if (response != null && response != '') {\n              if (mergedResponse != '') {\n                // add a new line between the responses\n                mergedResponse += '\\n';\n              }\n\n              // append the response\n              mergedResponse += response;\n            }\n          }\n        }\n      }\n\n      if (mergedResponse != null && mergedResponse != '') {\n        // set the merged response into the merged component state\n        mergedComponentState.studentData = {};\n        mergedComponentState.studentData.response = mergedResponse;\n      }\n    }\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'importWork';\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The show JSON button was clicked to show or hide the JSON authoring\n   */\n  showJSONButtonClicked() {\n    // toggle the JSON authoring textarea\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n\n    if (this.jsonStringChanged && !this.showJSONAuthoring) {\n      /*\n       * the author has changed the JSON and has just closed the JSON\n       * authoring view so we will save the component\n       */\n      this.advancedAuthoringViewComponentChanged();\n\n      // scroll to the top of the component\n      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });\n\n      this.jsonStringChanged = false;\n    }\n  }\n\n  /**\n   * The author has changed the JSON manually in the advanced view\n   */\n  authoringJSONChanged() {\n    this.jsonStringChanged = true;\n  }\n\n  /**\n   * The Use Completion Criteria checkbox was clicked. We will toggle the\n   * completion criteria in the component content.\n   * @return False if we want to cancel the click and not perform any changes.\n   * True if we want to perform the changes.\n   */\n  useCustomCompletionCriteriaClicked() {\n    if (this.useCustomCompletionCriteria == false) {\n      /*\n       * The completion criteria was changed from true to false which\n       * means we will delete the completionCriteria object. We will confirm\n       * with the author that they want to delete the completion criteria.\n       */\n      let answer = confirm(this.$translate('areYouSureYouWantToDeleteTheCustomCompletionCriteria'));\n      if (!answer) {\n        // the author answered no so we will abort\n        this.useCustomCompletionCriteria = true;\n        return false;\n      }\n    }\n\n    if (this.useCustomCompletionCriteria) {\n      /*\n       * We are using a completion criteria so we will populate it if it\n       * doesn't already exist.\n       */\n      if (this.authoringComponentContent.completionCriteria == null) {\n        this.authoringComponentContent.completionCriteria = {\n          inOrder: true,\n          criteria: []\n        };\n      }\n    } else {\n      // we are not using a completion criteria so we will delete it\n      delete this.authoringComponentContent.completionCriteria;\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n    return true;\n  }\n\n  /**\n   * Move a completion criteria up.\n   * @param index The index of the completion criteria to move up.\n   */\n  moveCompletionCriteriaUp(index) {\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the criteria\n      let criteria = this.authoringComponentContent.completionCriteria.criteria[index];\n\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // insert the criteria one index back\n      this.authoringComponentContent.completionCriteria.criteria.splice(index - 1, 0, criteria);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a completion criteria down.\n   * @param index The index of the completion criteria to move down.\n   */\n  moveCompletionCriteriaDown(index) {\n    if (index < this.authoringComponentContent.completionCriteria.criteria.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the criteria\n      let criteria = this.authoringComponentContent.completionCriteria.criteria[index];\n\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // insert the criteria one index forward\n      this.authoringComponentContent.completionCriteria.criteria.splice(index + 1, 0, criteria);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a completion criteria.\n   */\n  authoringAddCompletionCriteria() {\n    let newCompletionCriteria = {\n      nodeId: this.nodeId,\n      componentId: this.componentId,\n      name: 'isSubmitted'\n    };\n    this.authoringComponentContent.completionCriteria.criteria.push(newCompletionCriteria);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a completion criteria.\n   * @param index The index of the completion criteria.\n   */\n  authoringDeleteCompletionCriteria(index) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisCompletionCriteria'));\n    if (answer) {\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if the item id is a valid CRater item id.\n   * @param itemId A string.\n   */\n  verifyCRaterItemId(itemId) {\n    // clear the Valid/Invalid text\n    this.cRaterItemIdIsValid = null;\n\n    // turn on the \"Verifying...\" text\n    this.isVerifyingCRaterItemId = true;\n\n    this.CRaterService.verifyCRaterItemId(itemId).then((isValid) => {\n      // turn off the \"Verifying...\" text\n      this.isVerifyingCRaterItemId = false;\n\n      // set the Valid/Invalid text\n      this.cRaterItemIdIsValid = isValid;\n    });\n  }\n};\n\nOpenResponseController.$inject = [\n  '$filter',\n  '$injector',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$scope',\n  'AnnotationService',\n  'ConfigService',\n  'CRaterService',\n  'NodeService',\n  'NotificationService',\n  'OpenResponseService',\n  'ProjectService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default OpenResponseController;\n"]}
->>>>>>> develop
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strict';\n\nclass OpenResponseController {\n\n  constructor($filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $scope,\n      AnnotationService,\n      ConfigService,\n      CRaterService,\n      NodeService,\n      NotebookService,\n      NotificationService,\n      OpenResponseService,\n      ProjectService,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$scope = $scope;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.CRaterService = CRaterService;\n    this.NodeService = NodeService;\n    this.NotebookService = NotebookService;\n    this.NotificationService = NotificationService;\n    this.OpenResponseService = OpenResponseService;\n    this.ProjectService = ProjectService;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n\n    this.idToOrder = this.ProjectService.idToOrder;\n\n    // the node id of the current node\n    this.nodeId = null;\n\n    // the component id\n    this.componentId = null;\n\n    // field that will hold the component content\n    this.componentContent = null;\n\n    // field that will hold the authoring component content\n    this.authoringComponentContent = null;\n\n    // holds the text that the student has typed\n    this.studentResponse = '';\n\n    // holds student attachments like assets\n    this.attachments = [];\n\n    // whether the step should be disabled\n    this.isDisabled = false;\n\n    // whether the student work is dirty and needs saving\n    this.isDirty = false;\n\n    // whether the student work has changed since last submit\n    this.isSubmitDirty = false;\n\n    // message to show next to save/submit buttons\n    this.saveMessage = {\n      text: '',\n      time: ''\n    };\n\n    // whether this component is showing previous work\n    this.isShowPreviousWork = false;\n\n    // whether the student work is for a submit\n    this.isSubmit = false;\n\n    // whether rich text editing is enabled\n    this.isRichTextEnabled = false;\n\n    // whether students can attach files to their work\n    this.isStudentAttachmentEnabled = false;\n\n    // whether the prompt is shown or not\n    this.isPromptVisible = true;\n\n    // whether the save button is shown or not\n    this.isSaveButtonVisible = false;\n\n    // whether the submit button is shown or not\n    this.isSubmitButtonVisible = false;\n\n    // whether the submit button is disabled\n    this.isSubmitButtonDisabled = false;\n\n    // whether we're only showing the student work\n    this.onlyShowWork = false;\n\n    // the latest annotations\n    this.latestAnnotations = null;\n\n    // used to hold a message dialog if we need to use one\n    this.messageDialog = null;\n\n    // counter to keep track of the number of submits\n    this.submitCounter = 0;\n\n    // flag for whether to show the advanced authoring\n    this.showAdvancedAuthoring = false;\n\n    // whether the JSON authoring is displayed\n    this.showJSONAuthoring = false;\n\n    // whether this component uses a custom completion criteria\n    this.useCustomCompletionCriteria = false;\n\n    // whether we are currently verifying a CRater item id\n    this.isVerifyingCRaterItemId = false;\n\n    // whether the CRater item id is valid\n    this.cRaterItemIdIsValid = null;\n\n    // whether the snip button is shown or not\n    this.isSnipButtonVisible = true;\n\n    //var scope = this;\n    let themePath = this.ProjectService.getThemePath();\n\n    // TODO: make toolbar items and plugins customizable by authors (OR strip down to only special characters, support for equations)\n    // Rich text editor options\n    this.tinymceOptions = {\n      //onChange: function(e) {\n      //scope.studentDataChanged();\n      //},\n      menubar: false,\n      plugins: 'link image media autoresize', //imagetools\n      toolbar: 'undo redo | bold italic | superscript subscript | bullist numlist | alignleft aligncenter alignright | link image media',\n      autoresize_bottom_margin: '0',\n      autoresize_min_height: '100',\n      image_advtab: true,\n      content_css: themePath + '/style/tinymce.css',\n      setup: function (ed) {\n        ed.on('focus', function (e) {\n          $(e.target.editorContainer).addClass('input--focused').parent().addClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').addClass('input-label--focused');\n        });\n\n        ed.on('blur', function (e) {\n          $(e.target.editorContainer).removeClass('input--focused').parent().removeClass('input-wrapper--focused');\n          $('label[for=\"' + e.target.id + '\"]').removeClass('input-label--focused');\n        });\n      }\n    };\n\n    // the options for when to update this component from a connected component\n    this.connectedComponentUpdateOnOptions = [\n      {\n        value: 'change',\n        text: 'Change'\n      },\n      {\n        value: 'submit',\n        text: 'Submit'\n      }\n    ];\n\n    // the component types we are allowed to connect to\n    this.allowedConnectedComponentTypes = [\n      {\n        type: 'OpenResponse'\n      }\n    ];\n\n    this.nodeId = this.$scope.nodeId;\n\n    // get the component content from the scope\n    this.componentContent = this.$scope.componentContent;\n\n    // get the authoring component content\n    this.authoringComponentContent = this.$scope.authoringComponentContent;\n\n    /*\n     * get the original component content. this is used when showing\n     * previous work from another component.\n     */\n    this.originalComponentContent = this.$scope.originalComponentContent;\n\n    // the mode to load the component in e.g. 'student', 'grading', 'onlyShowWork'\n    this.mode = this.$scope.mode;\n\n    this.workgroupId = this.$scope.workgroupId;\n    this.teacherWorkgroupId = this.$scope.teacherWorkgroupId;\n\n    if (this.componentContent != null) {\n\n      // get the component id\n      this.componentId = this.componentContent.id;\n\n      if (this.mode === 'student') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n        // get the latest annotations\n        this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n      } else if (this.mode === 'grading') {\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n        this.isSnipButtonVisible = false;\n      } else if (this.mode === 'onlyShowWork') {\n        this.onlyShowWork = true;\n        this.isPromptVisible = false;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n        this.isSnipButtonVisible = false;\n      } else if (this.mode === 'showPreviousWork') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = false;\n        this.isSubmitButtonVisible = false;\n        this.isDisabled = true;\n        this.isSnipButtonVisible = false;\n      } else if (this.mode === 'authoring') {\n        this.isPromptVisible = true;\n        this.isSaveButtonVisible = this.componentContent.showSaveButton;\n        this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n        // generate the summernote rubric element id\n        this.summernoteRubricId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n\n        // set the component rubric into the summernote rubric\n        this.summernoteRubricHTML = this.componentContent.rubric;\n\n        // the tooltip text for the insert WISE asset button\n        var insertAssetString = this.$translate('INSERT_ASSET');\n\n        /*\n         * create the custom button for inserting WISE assets into\n         * summernote\n         */\n        var InsertAssetButton = this.UtilService.createInsertAssetButton(this, null, this.nodeId, this.componentId, 'rubric', insertAssetString);\n\n        /*\n         * the options that specifies the tools to display in the\n         * summernote prompt\n         */\n        this.summernoteRubricOptions = {\n          toolbar: [\n            ['style', ['style']],\n            ['font', ['bold', 'underline', 'clear']],\n            ['fontname', ['fontname']],\n            ['fontsize', ['fontsize']],\n            ['color', ['color']],\n            ['para', ['ul', 'ol', 'paragraph']],\n            ['table', ['table']],\n            ['insert', ['link', 'video']],\n            ['view', ['fullscreen', 'codeview', 'help']],\n            ['customButton', ['insertAssetButton']]\n          ],\n          height: 300,\n          disableDragAndDrop: true,\n          buttons: {\n            insertAssetButton: InsertAssetButton\n          }\n        };\n\n        this.updateAdvancedAuthoringView();\n\n        $scope.$watch(function() {\n          return this.authoringComponentContent;\n        }.bind(this), function(newValue, oldValue) {\n          // inject the asset paths into the new component content\n          this.componentContent = this.ProjectService.injectAssetPaths(newValue);\n\n          /*\n           * reset the values so that the preview is refreshed with\n           * the new content\n           */\n          this.submitCounter = 0;\n          this.studentResponse = '';\n          this.latestAnnotations = null;\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.isSaveButtonVisible = this.componentContent.showSaveButton;\n          this.isSubmitButtonVisible = this.componentContent.showSubmitButton;\n\n          if (this.componentContent.starterSentence != null) {\n            /*\n             * the student has not done any work and there is a starter sentence\n             * so we will populate the textarea with the starter sentence\n             */\n            this.studentResponse = this.componentContent.starterSentence;\n          }\n        }.bind(this), true);\n      }\n\n      var componentState = null;\n\n      // set whether rich text is enabled\n      this.isRichTextEnabled = this.componentContent.isRichTextEnabled;\n\n      // set whether studentAttachment is enabled\n      this.isStudentAttachmentEnabled = this.componentContent.isStudentAttachmentEnabled;\n\n      if (this.componentContent.completionCriteria != null) {\n        this.useCustomCompletionCriteria = true;\n      }\n\n      // get the component state from the scope\n      componentState = this.$scope.componentState;\n\n      if (this.mode == 'student') {\n        if (this.UtilService.hasShowWorkConnectedComponent(this.componentContent)) {\n          // we will show work from another component\n          this.handleConnectedComponents();\n        }  else if (componentState != null &&\n            this.OpenResponseService.componentStateHasStudentWork(componentState, this.componentContent)) {\n          /*\n           * the student has work so we will populate the work into this\n           * component\n           */\n          this.setStudentWork(componentState);\n        } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n          // we will import work from another component\n          this.handleConnectedComponents();\n        } else if (componentState == null) {\n          // check if we need to import work\n\n          var importPreviousWorkNodeId = this.getImportPreviousWorkNodeId();\n          var importPreviousWorkComponentId = this.getImportPreviousWorkComponentId();\n\n          if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n            // import the work from the other component\n            this.importWork();\n          } else if (this.UtilService.hasConnectedComponent(this.componentContent)) {\n            /*\n             * the student does not have any work and there are connected\n             * components so we will get the work from the connected\n             * components\n             */\n            this.handleConnectedComponents();\n          } else if (this.componentContent.starterSentence != null) {\n            /*\n             * the student has not done any work and there is a starter sentence\n             * so we will populate the textarea with the starter sentence\n             */\n            this.studentResponse = this.componentContent.starterSentence;\n          }\n        }\n      } else {\n        // populate the student work into this component\n        this.setStudentWork(componentState);\n      }\n\n      // check if the student has used up all of their submits\n      if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n        /*\n         * the student has used up all of their chances to submit so we\n         * will disable the submit button\n         */\n        this.isSubmitButtonDisabled = true;\n      }\n\n      // check if we need to lock this component\n      this.calculateDisabled();\n\n      if (this.$scope.$parent.nodeController != null) {\n        // register this component with the parent node\n        this.$scope.$parent.nodeController.registerComponentController(this.$scope, this.componentContent);\n      }\n    }\n\n    //$('.openResponse').off('dragover').off('drop');\n\n    /**\n     * Returns true iff there is student work that hasn't been saved yet\n     */\n    this.$scope.isDirty = function() {\n      return this.$scope.openResponseController.isDirty;\n    }.bind(this);\n\n    /**\n     * Get the component state from this component. The parent node will\n     * call this function to obtain the component state when it needs to\n     * save student data.\n     * @param isSubmit boolean whether the request is coming from a submit\n     * action (optional; default is false)\n     * @return a promise of a component state containing the student data\n     */\n    this.$scope.getComponentState = function(isSubmit) {\n      var deferred = this.$q.defer();\n      let getState = false;\n      let action = 'change';\n\n      if (isSubmit) {\n        if (this.$scope.openResponseController.isSubmitDirty) {\n          getState = true;\n          action = 'submit';\n        }\n      } else {\n        if (this.$scope.openResponseController.isDirty) {\n          getState = true;\n          action = 'save';\n        }\n      }\n\n      if (getState) {\n        // create a component state populated with the student data\n        this.$scope.openResponseController.createComponentState(action).then((componentState) => {\n          deferred.resolve(componentState);\n        });\n      } else {\n        /*\n         * the student does not have any unsaved changes in this component\n         * so we don't need to save a component state for this component.\n         * we will immediately resolve the promise here.\n         */\n        deferred.resolve();\n      }\n\n      return deferred.promise;\n    }.bind(this);\n\n    /**\n     * The parent node submit button was clicked\n     */\n    this.$scope.$on('nodeSubmitClicked', function(event, args) {\n\n      // get the node id of the node\n      var nodeId = args.nodeId;\n\n      // make sure the node id matches our parent node\n      if (this.nodeId === nodeId) {\n\n        // trigger the submit\n        var submitTriggeredBy = 'nodeSubmitButton';\n        this.submit(submitTriggeredBy);\n      }\n    }.bind(this));\n\n    /**\n     * Listen for the 'studentWorkSavedToServer' event which is fired when\n     * we receive the response from saving a component state to the server\n     */\n    this.$scope.$on('studentWorkSavedToServer', angular.bind(this, function(event, args) {\n\n      let componentState = args.studentWork;\n\n      // check that the component state is for this component\n      if (componentState && this.nodeId === componentState.nodeId\n        && this.componentId === componentState.componentId) {\n\n        // set isDirty to false because the component state was just saved and notify node\n        this.isDirty = false;\n        this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: false});\n\n        let isAutoSave = componentState.isAutoSave;\n        let isSubmit = componentState.isSubmit;\n        let serverSaveTime = componentState.serverSaveTime;\n        let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n\n        // set save message\n        if (isSubmit) {\n          this.setSaveMessage(this.$translate('SUBMITTED'), clientSaveTime);\n\n          this.lockIfNecessary();\n\n          // set isSubmitDirty to false because the component state was just submitted and notify node\n          this.isSubmitDirty = false;\n          this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        } else if (isAutoSave) {\n          this.setSaveMessage(this.$translate('AUTO_SAVED'), clientSaveTime);\n        } else {\n          this.setSaveMessage(this.$translate('SAVED'), clientSaveTime);\n        }\n      }\n    }));\n\n    /**\n     * Listen for the 'annotationSavedToServer' event which is fired when\n     * we receive the response from saving an annotation to the server\n     */\n    this.$scope.$on('annotationSavedToServer', (event, args) => {\n\n      if (args != null ) {\n\n        // get the annotation that was saved to the server\n        var annotation = args.annotation;\n\n        if (annotation != null) {\n\n          // get the node id and component id of the annotation\n          var annotationNodeId = annotation.nodeId;\n          var annotationComponentId = annotation.componentId;\n\n          // make sure the annotation was for this component\n          if (this.nodeId === annotationNodeId &&\n            this.componentId === annotationComponentId) {\n\n            // get latest score and comment annotations for this component\n            this.latestAnnotations = this.AnnotationService.getLatestComponentAnnotations(this.nodeId, this.componentId, this.workgroupId);\n          }\n        }\n      }\n    });\n\n    /**\n     * Listen for the 'exitNode' event which is fired when the student\n     * exits the parent node. This will perform any necessary cleanup\n     * when the student exits the parent node.\n     */\n    this.$scope.$on('exitNode', function(event, args) {\n\n    }.bind(this));\n\n    /*\n     * Listen for the assetSelected event which occurs when the user\n     * selects an asset from the choose asset popup\n     */\n    this.$scope.$on('assetSelected', (event, args) => {\n\n      if (args != null) {\n\n        // make sure the event was fired for this component\n        if (args.nodeId == this.nodeId && args.componentId == this.componentId) {\n          // the asset was selected for this component\n          var assetItem = args.assetItem;\n\n          if (assetItem != null) {\n            var fileName = assetItem.fileName;\n\n            if (fileName != null) {\n              /*\n               * get the assets directory path\n               * e.g.\n               * /wise/curriculum/3/\n               */\n              var assetsDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n              var fullAssetPath = assetsDirectoryPath + '/' + fileName;\n\n              var summernoteId = '';\n\n              if (args.target == 'prompt') {\n                // the target is the summernote prompt element\n                summernoteId = 'summernotePrompt_' + this.nodeId + '_' + this.componentId;\n              } else if (args.target == 'rubric') {\n                // the target is the summernote rubric element\n                summernoteId = 'summernoteRubric_' + this.nodeId + '_' + this.componentId;\n              }\n\n              if (summernoteId != '') {\n                if (this.UtilService.isImage(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // add the image html\n                  $('#' + summernoteId).summernote('insertImage', fullAssetPath, fileName);\n                } else if (this.UtilService.isVideo(fileName)) {\n                  /*\n                   * move the cursor back to its position when the asset chooser\n                   * popup was clicked\n                   */\n                  $('#' + summernoteId).summernote('editor.restoreRange');\n                  $('#' + summernoteId).summernote('editor.focus');\n\n                  // insert the video element\n                  var videoElement = document.createElement('video');\n                  videoElement.controls = 'true';\n                  videoElement.innerHTML = '<source ng-src=\"' + fullAssetPath + '\" type=\"video/mp4\">';\n                  $('#' + summernoteId).summernote('insertNode', videoElement);\n                }\n              }\n            }\n          }\n        }\n      }\n\n      // close the popup\n      this.$mdDialog.hide();\n    });\n\n    /*\n     * The advanced button for a component was clicked. If the button was\n     * for this component, we will show the advanced authoring.\n     */\n    this.$scope.$on('componentAdvancedButtonClicked', (event, args) => {\n      if (args != null) {\n        let componentId = args.componentId;\n        if (this.componentId === componentId) {\n          this.showAdvancedAuthoring = !this.showAdvancedAuthoring;\n        }\n      }\n    });\n\n    this.$scope.$on('notebookItemChosen', (event, args) => {\n      if (args.requester == this.nodeId + '-' + this.componentId) {\n        const notebookItem = args.notebookItem;\n        const studentWorkId = notebookItem.content.studentWorkIds[0];\n        this.importWorkByStudentWorkId(studentWorkId);\n      }\n    });\n\n    // load script for this component, if any\n    let script = this.componentContent.script;\n    if (script != null) {\n      this.ProjectService.retrieveScript(script).then((script) => {\n        new Function(script).call(this);\n      });\n    }\n\n    this.$rootScope.$broadcast('doneRenderingComponent', { nodeId: this.nodeId, componentId: this.componentId });\n  }\n\n  /**\n   * Populate the student work into the component\n   * @param componentState the component state to populate into the component\n   */\n  setStudentWork(componentState) {\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        var response = studentData.response;\n\n        if (response != null) {\n          // populate the text the student previously typed\n          this.studentResponse = response;\n        }\n\n        var submitCounter = studentData.submitCounter;\n\n        if (submitCounter != null) {\n          // populate the submit counter\n          this.submitCounter = submitCounter;\n        }\n\n        var attachments = studentData.attachments;\n\n        if (attachments != null) {\n          this.attachments = attachments;\n        }\n\n        this.processLatestSubmit();\n      }\n    }\n  };\n\n  /**\n   * Check if latest component state is a submission and set isSubmitDirty accordingly\n   */\n  processLatestSubmit() {\n    let latestState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n    if (latestState) {\n      let serverSaveTime = latestState.serverSaveTime;\n      let clientSaveTime = this.ConfigService.convertToClientTimestamp(serverSaveTime);\n      if (latestState.isSubmit) {\n        // latest state is a submission, so set isSubmitDirty to false and notify node\n        this.isSubmitDirty = false;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: false});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SUBMITTED'), clientSaveTime);\n      } else {\n        // latest state is not a submission, so set isSubmitDirty to true and notify node\n        this.isSubmitDirty = true;\n        this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n        // set save message\n        this.setSaveMessage(this.$translate('LAST_SAVED'), clientSaveTime);\n      }\n    }\n  };\n\n  /**\n   * Called when the student clicks the save button\n   */\n  saveButtonClicked() {\n    this.isSubmit = false;\n\n    if (this.mode === 'authoring') {\n      /*\n       * we are in authoring mode so we will set isDirty to false here\n       * because the 'componentSaveTriggered' event won't work in\n       * authoring mode\n       */\n      this.isDirty = false;\n    }\n\n    // tell the parent node that this component wants to save\n    this.$scope.$emit('componentSaveTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n  };\n\n  /**\n   * Called when the student clicks the submit button\n   */\n  submitButtonClicked() {\n    // trigger the submit\n    var submitTriggeredBy = 'componentSubmitButton';\n    this.submit(submitTriggeredBy);\n  };\n\n  /**\n   * A submit was triggered by the component submit button or node submit button\n   * @param submitTriggeredBy what triggered the submit\n   * e.g. 'componentSubmitButton' or 'nodeSubmitButton'\n   */\n  submit(submitTriggeredBy) {\n\n    if (this.isSubmitDirty) {\n      // the student has unsubmitted work\n\n      var performSubmit = true;\n\n      if (this.componentContent.maxSubmitCount != null) {\n        // there is a max submit count\n\n        // calculate the number of submits this student has left\n        var numberOfSubmitsLeft = this.componentContent.maxSubmitCount - this.submitCounter;\n\n        var message = '';\n\n        if (numberOfSubmitsLeft <= 0) {\n\n          // the student does not have any more chances to submit\n          alert(this.$translate('openResponse.youHaveNoMoreChances'));\n          performSubmit = false;\n        } else if (numberOfSubmitsLeft == 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('openResponse.youHaveOneChance', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          //message = 'You have ' + numberOfSubmitsLeft + ' chance to receive feedback on your answer so this this should be your best work.\\n\\nAre you ready to receive feedback on this answer?';\n          performSubmit = confirm(message);\n        } else if (numberOfSubmitsLeft > 1) {\n\n          // ask the student if they are sure they want to submit\n          message = this.$translate('openResponse.youHaveMultipleChances', {numberOfSubmitsLeft: numberOfSubmitsLeft});\n          //message = 'You have ' + numberOfSubmitsLeft + ' chances to receive feedback on your answer so this this should be your best work.\\n\\nAre you ready to receive feedback on this answer?';\n          performSubmit = confirm(message);\n        }\n      }\n\n      if (performSubmit) {\n\n        /*\n         * set isSubmit to true so that when the component state is\n         * created, it will know that is a submit component state\n         * instead of just a save component state\n         */\n        this.isSubmit = true;\n\n        // increment the submit counter\n        this.incrementSubmitCounter();\n\n        // check if the student has used up all of their submits\n        if (this.componentContent.maxSubmitCount != null && this.submitCounter >= this.componentContent.maxSubmitCount) {\n          /*\n           * the student has used up all of their submits so we will\n           * disable the submit button\n           */\n          this.isSubmitButtonDisabled = true;\n        }\n\n        if (this.mode === 'authoring') {\n          /*\n           * we are in authoring mode so we will set values appropriately\n           * here because the 'componentSubmitTriggered' event won't\n           * work in authoring mode\n           */\n          this.isDirty = false;\n          this.isSubmitDirty = false;\n          this.createComponentState('submit');\n        }\n\n        if (submitTriggeredBy == null || submitTriggeredBy === 'componentSubmitButton') {\n          // tell the parent node that this component wants to submit\n          this.$scope.$emit('componentSubmitTriggered', {nodeId: this.nodeId, componentId: this.componentId});\n        } else if (submitTriggeredBy === 'nodeSubmitButton') {\n          // nothing extra needs to be performed\n        }\n      } else {\n        /*\n         * the student has cancelled the submit so if a component state\n         * is created, it will just be a regular save and not submit\n         */\n        this.isSubmit = false;\n      }\n    }\n  }\n\n  /**\n   * Increment the submit counter\n   */\n  incrementSubmitCounter() {\n    this.submitCounter++;\n  }\n\n  lockIfNecessary() {\n    // check if we need to lock the component after the student submits\n    if (this.isLockAfterSubmit()) {\n      this.isDisabled = true;\n    }\n  };\n\n  /**\n   * Called when the student changes their work\n   */\n  studentDataChanged() {\n    /*\n     * set the dirty flags so we will know we need to save or submit the\n     * student work later\n     */\n    this.isDirty = true;\n    this.$scope.$emit('componentDirty', {componentId: this.componentId, isDirty: true});\n\n    this.isSubmitDirty = true;\n    this.$scope.$emit('componentSubmitDirty', {componentId: this.componentId, isDirty: true});\n\n    // clear out the save message\n    this.setSaveMessage('', null);\n\n    // get this part id\n    var componentId = this.getComponentId();\n\n    /*\n     * the student work in this component has changed so we will tell\n     * the parent node that the student data will need to be saved.\n     * this will also notify connected parts that this component's student\n     * data has changed.\n     */\n    var action = 'change';\n\n    // create a component state populated with the student data\n    this.createComponentState(action).then((componentState) => {\n      this.$scope.$emit('componentStudentDataChanged', {nodeId: this.nodeId, componentId: componentId, componentState: componentState});\n    });\n  };\n\n  /**\n   * Get the student response\n   */\n  getStudentResponse() {\n    return this.studentResponse;\n  };\n\n  /**\n   * Create a new component state populated with the student data\n   * @param action the action that is triggering creating of this component state\n   * e.g. 'submit', 'save', 'change'\n   * @return a promise that will return a component state\n   */\n  createComponentState(action) {\n\n    var deferred = this.$q.defer();\n\n    // create a new component state\n    var componentState = this.NodeService.createNewComponentState();\n\n    // set the response into the component state\n    var studentData = {};\n\n    // get the text the student typed\n    var response = this.getStudentResponse();\n\n    studentData.response = response;\n    studentData.attachments = angular.copy(this.attachments);  // create a copy without reference to original array\n\n    // set the submit counter\n    studentData.submitCounter = this.submitCounter;\n\n    if (this.parentStudentWorkIds != null) {\n      studentData.parentStudentWorkIds = this.parentStudentWorkIds;\n    }\n\n    // set the flag for whether the student submitted this work\n    componentState.isSubmit = this.isSubmit;\n\n    // set the student data into the component state\n    componentState.studentData = studentData;\n\n    // set the component type\n    componentState.componentType = 'OpenResponse';\n\n    // set the node id\n    componentState.nodeId = this.nodeId;\n\n    // set the component id\n    componentState.componentId = this.componentId;\n\n    /*\n     * reset the isSubmit value so that the next component state\n     * doesn't maintain the same value\n     */\n    this.isSubmit = false;\n\n    /*\n     * perform any additional processing that is required before returning\n     * the component state\n     */\n    this.createComponentStateAdditionalProcessing(deferred, componentState, action);\n\n    return deferred.promise;\n  };\n\n  /**\n   * Perform any additional processing that is required before returning the\n   * component state\n   * Note: this function must call deferred.resolve() otherwise student work\n   * will not be saved\n   * @param deferred a deferred object\n   * @param componentState the component state\n   * @param action the action that we are creating the component state for\n   * e.g. 'submit', 'save', 'change'\n   */\n  createComponentStateAdditionalProcessing(deferred, componentState, action) {\n\n    var performCRaterScoring = false;\n\n    // determine if we need to perform CRater scoring\n    if (action == 'submit' && componentState.isSubmit) {\n      if (this.isCRaterScoreOnSubmit(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    } else if (action == 'save') {\n      if (this.isCRaterScoreOnSave(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    } else if (action == 'change' || action == null) {\n      if (this.isCRaterScoreOnChange(this.componentContent)) {\n        performCRaterScoring = true;\n      }\n    }\n\n    if (performCRaterScoring) {\n      // we need to perform CRater scoring\n\n      var cRaterItemType = this.CRaterService.getCRaterItemType(this.componentContent);\n      var cRaterItemId = this.CRaterService.getCRaterItemId(this.componentContent);\n      var cRaterRequestType = 'scoring';\n      var cRaterResponseId = new Date().getTime();\n      var studentData = this.studentResponse;\n\n      /*\n       * display a dialog message while the student waits for their work\n       * to be scored by CRater\n       */\n      this.$mdDialog.show({\n        template: '<md-dialog aria-label=\"' + this.$translate('openResponse.pleaseWait') + '\"><md-dialog-content><div class=\"md-dialog-content\">' + this.$translate('openResponse.pleaseWaitWeAreScoringYourWork') + '</div></md-dialog-content></md-dialog>',\n        escapeToClose: false\n      });\n\n      // make the CRater request to score the student data\n      this.CRaterService.makeCRaterRequest(cRaterItemType, cRaterItemId, cRaterRequestType, cRaterResponseId, studentData).then((result) => {\n\n        if (result != null) {\n\n          // get the CRater response\n          var data = result.data;\n\n          if (data != null) {\n\n            /*\n             * annotations we put in the component state will be\n             * removed from the component state and saved separately\n             */\n            componentState.annotations = [];\n\n            // get the CRater score\n            let score = data.score;\n            let concepts = data.concepts;\n            let previousScore = null;\n\n            if (score != null) {\n\n              // create the auto score annotation\n              let autoScoreAnnotationData = {};\n              autoScoreAnnotationData.value = score;\n              autoScoreAnnotationData.maxAutoScore = this.ProjectService.getMaxScoreForComponent(this.nodeId, this.componentId);\n              autoScoreAnnotationData.concepts = concepts;\n              autoScoreAnnotationData.autoGrader = 'cRater';\n\n              let autoScoreAnnotation = this.createAutoScoreAnnotation(autoScoreAnnotationData);\n\n              let annotationGroupForScore = null;\n\n              if (this.$scope.$parent.nodeController != null) {\n                // get the previous score and comment annotations\n                let latestAnnotations = this.$scope.$parent.nodeController.getLatestComponentAnnotations(this.componentId);\n\n                if (latestAnnotations != null && latestAnnotations.score != null &&\n                  latestAnnotations.score.data != null) {\n\n                  // get the previous score annotation value\n                  previousScore = latestAnnotations.score.data.value;\n                }\n\n                if (this.componentContent.enableGlobalAnnotations && this.componentContent.globalAnnotationSettings != null) {\n\n                  let globalAnnotationMaxCount = 0;\n                  if (this.componentContent.globalAnnotationSettings.globalAnnotationMaxCount != null) {\n                    globalAnnotationMaxCount = this.componentContent.globalAnnotationSettings.globalAnnotationMaxCount;\n                  }\n                  // get the annotation properties for the score that the student got.\n                  annotationGroupForScore = this.ProjectService.getGlobalAnnotationGroupByScore(this.componentContent, previousScore, score);\n\n                  // check if we need to apply this globalAnnotationSetting to this annotation: we don't need to if we've already reached the maxCount\n                  if (annotationGroupForScore != null) {\n                    let globalAnnotationGroupsByNodeIdAndComponentId = this.AnnotationService.getAllGlobalAnnotationGroups(this.nodeId, this.componentId);\n                    annotationGroupForScore.annotationGroupCreatedTime = autoScoreAnnotation.clientSaveTime;  // save annotation creation time\n\n                    if (globalAnnotationGroupsByNodeIdAndComponentId.length >= globalAnnotationMaxCount) {\n                      // we've already applied this annotation properties to maxCount annotations, so we don't need to apply it any more.\n                      annotationGroupForScore = null;\n                    }\n                  }\n\n                  if (annotationGroupForScore != null && annotationGroupForScore.isGlobal && annotationGroupForScore.unGlobalizeCriteria != null) {\n                    // check if this annotation is global and what criteria needs to be met to un-globalize.\n                    annotationGroupForScore.unGlobalizeCriteria.map( (unGlobalizeCriteria) => {\n                      // if the un-globalize criteria is time-based (e.g. isVisitedAfter, isRevisedAfter, isVisitedAndRevisedAfter, etc), store the timestamp of this annotation in the criteria\n                      // so we can compare it when we check for criteria satisfaction.\n                      if (unGlobalizeCriteria.params != null) {\n                        unGlobalizeCriteria.params.criteriaCreatedTimestamp = autoScoreAnnotation.clientSaveTime;  // save annotation creation time to criteria\n                      }\n                    });\n                  }\n\n                  if (annotationGroupForScore != null) {\n                    // copy over the annotation properties into the autoScoreAnnotation's data\n                    angular.merge(autoScoreAnnotation.data, annotationGroupForScore);\n                  }\n                }\n              }\n\n              componentState.annotations.push(autoScoreAnnotation);\n\n              if (this.mode === 'authoring') {\n                if (this.latestAnnotations == null) {\n                  this.latestAnnotations = {};\n                }\n\n                /*\n                 * we are in the authoring view so we will set the\n                 * latest score annotation manually\n                 */\n                this.latestAnnotations.score = autoScoreAnnotation;\n              }\n\n              var autoComment = null;\n\n              // get the submit counter\n              var submitCounter = this.submitCounter;\n\n              if (this.componentContent.cRater.enableMultipleAttemptScoringRules && submitCounter > 1) {\n                /*\n                 * this step has multiple attempt scoring rules and this is\n                 * a subsequent submit\n                 */\n                // get the feedback based upon the previous score and current score\n                autoComment = this.CRaterService.getMultipleAttemptCRaterFeedbackTextByScore(this.componentContent, previousScore, score);\n              } else {\n                // get the feedback text\n                autoComment = this.CRaterService.getCRaterFeedbackTextByScore(this.componentContent, score);\n              }\n\n              if (autoComment != null) {\n                // create the auto comment annotation\n                var autoCommentAnnotationData = {};\n                autoCommentAnnotationData.value = autoComment;\n                autoCommentAnnotationData.concepts = concepts;\n                autoCommentAnnotationData.autoGrader = 'cRater';\n\n                var autoCommentAnnotation = this.createAutoCommentAnnotation(autoCommentAnnotationData);\n\n                if (this.componentContent.enableGlobalAnnotations) {\n                  if (annotationGroupForScore != null) {\n                    // copy over the annotation properties into the autoCommentAnnotation's data\n                    angular.merge(autoCommentAnnotation.data, annotationGroupForScore);\n                  }\n                }\n                componentState.annotations.push(autoCommentAnnotation);\n\n                if (this.mode === 'authoring') {\n                  if (this.latestAnnotations == null) {\n                    this.latestAnnotations = {};\n                  }\n\n                  /*\n                   * we are in the authoring view so we will set the\n                   * latest comment annotation manually\n                   */\n                  this.latestAnnotations.comment = autoCommentAnnotation;\n                }\n              }\n              if (this.componentContent.enableNotifications) {\n                // get the notification properties for the score that the student got.\n                let notificationForScore = this.ProjectService.getNotificationByScore(this.componentContent, previousScore, score);\n\n                if (notificationForScore != null) {\n                  notificationForScore.score = score;\n                  notificationForScore.nodeId = this.nodeId;\n                  notificationForScore.componentId = this.componentId;\n                  this.NotificationService.sendNotificationForScore(notificationForScore);\n                }\n              }\n\n              // display global annotations dialog if needed\n              if (this.componentContent.enableGlobalAnnotations && annotationGroupForScore != null && annotationGroupForScore.isGlobal && annotationGroupForScore.isPopup) {\n                this.$scope.$emit('displayGlobalAnnotations');\n              }\n            }\n          }\n        }\n\n        /*\n         * hide the dialog that tells the student to wait since\n         * the work has been scored.\n         */\n        this.$mdDialog.hide();\n\n        // resolve the promise now that we are done performing additional processing\n        deferred.resolve(componentState);\n      });\n    } else if (this.ProjectService.hasAdditionalProcessingFunctions(this.nodeId, this.componentId)) {\n      // if there are any additionalProcessingFunctions for this node and component, call all of them\n      let additionalProcessingFunctions = this.ProjectService.getAdditionalProcessingFunctions(this.nodeId, this.componentId);\n      let allPromises = [];\n      for (let i = 0; i < additionalProcessingFunctions.length; i++) {\n        let additionalProcessingFunction = additionalProcessingFunctions[i];\n        let defer = this.$q.defer();\n        let promise = defer.promise;\n        allPromises.push(promise);\n        additionalProcessingFunction(defer, componentState, action);\n      }\n      this.$q.all(allPromises).then(() => {\n        deferred.resolve(componentState);\n      });\n    } else {\n      /*\n       * we don't need to perform any additional processing so we can resolve\n       * the promise immediately\n       */\n      deferred.resolve(componentState);\n    }\n  }\n\n  /**\n   * Create an auto score annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto score annotation\n   */\n  createAutoScoreAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto score annotation\n    var annotation = this.AnnotationService.createAutoScoreAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Create an auto comment annotation\n   * @param runId the run id\n   * @param periodId the period id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param toWorkgroupId the student workgroup id\n   * @param data the annotation data\n   * @returns the auto comment annotation\n   */\n  createAutoCommentAnnotation(data) {\n\n    var runId = this.ConfigService.getRunId();\n    var periodId = this.ConfigService.getPeriodId();\n    var nodeId = this.nodeId;\n    var componentId = this.componentId;\n    var toWorkgroupId = this.ConfigService.getWorkgroupId();\n\n    // create the auto comment annotation\n    var annotation = this.AnnotationService.createAutoCommentAnnotation(runId, periodId, nodeId, componentId, toWorkgroupId, data);\n\n    return annotation;\n  }\n\n  /**\n   * Check if we need to lock the component\n   */\n  calculateDisabled() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // check if the parent has set this component to disabled\n      if (componentContent.isDisabled) {\n        this.isDisabled = true;\n      } else if (componentContent.lockAfterSubmit) {\n        // we need to lock the component after the student has submitted\n\n        // get the component states for this component\n        var componentStates = this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        // check if any of the component states were submitted\n        var isSubmitted = this.NodeService.isWorkSubmitted(componentStates);\n\n        if (isSubmitted) {\n          // the student has submitted work for this component\n          this.isDisabled = true;\n        }\n      }\n    }\n  };\n\n  /**\n   * Check whether we need to lock the component after the student\n   * submits an answer.\n   */\n  isLockAfterSubmit() {\n    var result = false;\n\n    if (this.componentContent != null) {\n\n      // check the lockAfterSubmit field in the component content\n      if (this.componentContent.lockAfterSubmit) {\n        result = true;\n      }\n    }\n\n    return result;\n  };\n\n  removeAttachment(attachment) {\n    if (this.attachments.indexOf(attachment) != -1) {\n      this.attachments.splice(this.attachments.indexOf(attachment), 1);\n      this.studentDataChanged();\n      // YOU ARE NOW FREEEEEEEEE!\n    }\n  };\n\n  /**\n   * Attach student asset to this Component's attachments\n   * @param studentAsset\n   */\n  attachStudentAsset(studentAsset) {\n    if (studentAsset != null) {\n      this.StudentAssetService.copyAssetForReference(studentAsset).then( (copiedAsset) => {\n        if (copiedAsset != null) {\n          var attachment = {\n            studentAssetId: copiedAsset.id,\n            iconURL: copiedAsset.iconURL\n          };\n\n          this.attachments.push(attachment);\n          this.studentDataChanged();\n        }\n      });\n    }\n  };\n\n  /**\n   * Get the prompt to show to the student\n   */\n  getPrompt() {\n    var prompt = null;\n\n    if (this.originalComponentContent != null) {\n      // this is a show previous work component\n\n      if (this.originalComponentContent.showPreviousWorkPrompt) {\n        // show the prompt from the previous work component\n        prompt = this.componentContent.prompt;\n      } else {\n        // show the prompt from the original component\n        prompt = this.originalComponentContent.prompt;\n      }\n    } else if (this.componentContent != null) {\n      prompt = this.componentContent.prompt;\n    }\n\n    return prompt;\n  };\n\n  /**\n   * Get the number of rows for the textarea\n   */\n  getNumRows() {\n    var numRows = null;\n\n    if (this.componentContent != null) {\n      numRows = this.componentContent.numRows;\n    }\n\n    return numRows;\n  };\n\n  /**\n   * Get the number of columns for the textarea\n   */\n  getNumColumns() {\n    var numColumns = null;\n\n    if (this.componentContent != null) {\n      numColumns = this.componentContent.numColumns;\n    }\n\n    return numColumns;\n  };\n\n  /**\n   * Get the text the student typed\n   */\n  getResponse() {\n    var response = null;\n\n    if (this.studentResponse != null) {\n      response = this.studentResponse;\n    }\n\n    return response;\n  };\n\n  /**\n   * Import work from another component\n   */\n  importWork() {\n\n    // get the component content\n    var componentContent = this.componentContent;\n\n    if (componentContent != null) {\n\n      // get the import previous work node id and component id\n      var importPreviousWorkNodeId = componentContent.importPreviousWorkNodeId;\n      var importPreviousWorkComponentId = componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        if (componentContent.importWorkNodeId != null && componentContent.importWorkNodeId != '') {\n          importPreviousWorkNodeId = componentContent.importWorkNodeId;\n        }\n      }\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        if (componentContent.importWorkComponentId != null && componentContent.importWorkComponentId != '') {\n          importPreviousWorkComponentId = componentContent.importWorkComponentId;\n        }\n      }\n\n      if (importPreviousWorkNodeId != null && importPreviousWorkComponentId != null) {\n\n        // get the latest component state for this component\n        var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n\n        /*\n         * we will only import work into this component if the student\n         * has not done any work for this component\n         */\n        if(componentState == null) {\n          // the student has not done any work for this component\n\n          // get the latest component state from the component we are importing from\n          var importWorkComponentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(importPreviousWorkNodeId, importPreviousWorkComponentId);\n\n          if (importWorkComponentState != null) {\n            /*\n             * populate a new component state with the work from the\n             * imported component state\n             */\n            var populatedComponentState = this.OpenResponseService.populateComponentState(importWorkComponentState);\n\n            // populate the component state into this component\n            this.setStudentWork(populatedComponentState);\n\n            // make the work dirty so that it gets saved\n            this.studentDataChanged();\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the component id\n   * @return the component id\n   */\n  getComponentId() {\n    return this.componentContent.id;\n  };\n\n  /**\n   * The component has changed in the regular authoring view so we will save the project\n   */\n  authoringViewComponentChanged() {\n\n    // update the JSON string in the advanced authoring view textarea\n    this.updateAdvancedAuthoringView();\n\n    /*\n     * notify the parent node that the content has changed which will save\n     * the project to the server\n     */\n    this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n  };\n\n  /**\n   * The component has changed in the advanced authoring view so we will update\n   * the component and save the project.\n   */\n  advancedAuthoringViewComponentChanged() {\n\n    try {\n      /*\n       * create a new component by converting the JSON string in the advanced\n       * authoring view into a JSON object\n       */\n      var editedComponentContent = angular.fromJson(this.authoringComponentContentJSONString);\n\n      // replace the component in the project\n      this.ProjectService.replaceComponent(this.nodeId, this.componentId, editedComponentContent);\n\n      // set the new component into the controller\n      this.componentContent = editedComponentContent;\n\n      /*\n       * notify the parent node that the content has changed which will save\n       * the project to the server\n       */\n      this.$scope.$parent.nodeAuthoringController.authoringViewNodeChanged();\n    } catch(e) {\n      this.$scope.$parent.nodeAuthoringController.showSaveErrorAdvancedAuthoring();\n    }\n  };\n\n  /**\n   * Get all the step node ids in the project\n   * @returns all the step node ids\n   */\n  getStepNodeIds() {\n    var stepNodeIds = this.ProjectService.getNodeIds();\n\n    return stepNodeIds;\n  }\n\n  /**\n   * Get the step number and title\n   * @param nodeId get the step number and title for this node\n   * @returns the step number and title\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    var nodePositionAndTitle = this.ProjectService.getNodePositionAndTitleByNodeId(nodeId);\n\n    return nodePositionAndTitle;\n  }\n\n  /**\n   * Get the components in a step\n   * @param nodeId get the components in the step\n   * @returns the components in the step\n   */\n  getComponentsByNodeId(nodeId) {\n    var components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n    return components;\n  }\n\n  /**\n   * Check if a node is a step node\n   * @param nodeId the node id to check\n   * @returns whether the node is an application node\n   */\n  isApplicationNode(nodeId) {\n    var result = this.ProjectService.isApplicationNode(nodeId);\n\n    return result;\n  }\n\n  /**\n   * Update the component JSON string that will be displayed in the advanced authoring view textarea\n   */\n  updateAdvancedAuthoringView() {\n    this.authoringComponentContentJSONString = angular.toJson(this.authoringComponentContent, 4);\n  };\n\n  /**\n   * Set the message next to the save button\n   * @param message the message to display\n   * @param time the time to display\n   */\n  setSaveMessage(message, time) {\n    this.saveMessage.text = message;\n    this.saveMessage.time = time;\n  };\n\n  showSnipButton() {\n    return this.NotebookService.isNotebookEnabled() && this.isSnipButtonVisible;\n  }\n\n  snipButtonClicked($event) {\n    if (this.isDirty) {\n      const deregisterListener = this.$scope.$on('studentWorkSavedToServer',\n        (event, args) => {\n          let componentState = args.studentWork;\n          if (componentState &&\n              this.nodeId === componentState.nodeId &&\n              this.componentId === componentState.componentId) {\n            const imageObject = null;\n            const noteText = componentState.studentData.response;\n            const isEditTextEnabled = false;\n            const isFileUploadEnabled = false;\n            this.NotebookService.addNote($event, imageObject, noteText, [ componentState.id ], isEditTextEnabled, isFileUploadEnabled);\n            deregisterListener();\n          }\n        }\n      );\n      this.saveButtonClicked(); // trigger a save\n    } else {\n      const studentWork =\n        this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(this.nodeId, this.componentId);\n      const imageObject = null;\n      const noteText = studentWork.studentData.response;\n      const isEditTextEnabled = false;\n      const isFileUploadEnabled = false;\n      this.NotebookService.addNote($event, imageObject, noteText, [ studentWork.id ], isEditTextEnabled, isFileUploadEnabled);\n    }\n  }\n\n  showCopyPublicNotebookItemButton() {\n    return this.ProjectService.isSpaceExists(\"public\");\n  }\n\n  copyPublicNotebookItemButtonClicked(event) {\n    this.$rootScope.$broadcast('openNotebook',\n      { nodeId: this.nodeId, componentId: this.componentId, insertMode: true, requester: this.nodeId + '-' + this.componentId, visibleSpace: \"public\" });\n  }\n\n  importWorkByStudentWorkId(studentWorkId) {\n    this.StudentDataService.getStudentWorkById(studentWorkId).then((componentState) => {\n      if (componentState != null) {\n        this.setStudentWork(componentState);\n        this.setParentStudentWorkIdToCurrentStudentWork(studentWorkId);\n        this.$rootScope.$broadcast('closeNotebook');\n      }\n    });\n  }\n\n  setParentStudentWorkIdToCurrentStudentWork(studentWorkId) {\n    this.parentStudentWorkIds = [studentWorkId];\n  }\n\n  /**\n   * Check if CRater is enabled for this component\n   * @returns whether CRater is enabled for this component\n   */\n  isCRaterEnabled() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterEnabled(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on save\n   * @returns whether CRater is set to score on save\n   */\n  isCRaterScoreOnSave() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSave(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on submit\n   * @returns whether CRater is set to score on submit\n   */\n  isCRaterScoreOnSubmit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnSubmit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score on change\n   * @returns whether CRater is set to score on change\n   */\n  isCRaterScoreOnChange() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnChange(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Check if CRater is set to score when the student exits the step\n   * @returns whether CRater is set to score when the student exits the step\n   */\n  isCRaterScoreOnExit() {\n    var result = false;\n\n    if (this.CRaterService.isCRaterScoreOnExit(this.componentContent)) {\n      result = true;\n    }\n\n    return result;\n  }\n\n  /**\n   * Register the the listener that will listen for the exit event\n   * so that we can perform saving before exiting.\n   */\n  registerExitListener() {\n\n    /*\n     * Listen for the 'exit' event which is fired when the student exits\n     * the VLE. This will perform saving before the VLE exits.\n     */\n    this.exitListener = this.$scope.$on('exit', (event, args) => {\n\n    });\n  };\n\n  /**\n   * Add a scoring rule\n   */\n  authoringAddScoringRule() {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // create a scoring rule object\n      var newScoringRule = {};\n      newScoringRule.score = '';\n      newScoringRule.feedbackText = '';\n\n      // add the new scoring rule object\n      this.authoringComponentContent.cRater.scoringRules.push(newScoringRule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Move a scoring rule up\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleUpClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // make sure the scoring rule is not already at the top\n      if (index != 0) {\n        // the scoring rule is not at the top so we can move it up\n\n        // get the scoring rule\n        var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n        // remove the scoring rule\n        this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n        // add the scoring rule back at the position one index back\n        this.authoringComponentContent.cRater.scoringRules.splice(index - 1, 0, scoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a scoring rule down\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleDownClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // make sure the scoring rule is not already at the end\n      if (index != this.authoringComponentContent.cRater.scoringRules.length - 1) {\n\n        // get the scoring rule\n        var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n        // remove the scoring rule\n        this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n        // add the scoring rule back at the position one index forward\n        this.authoringComponentContent.cRater.scoringRules.splice(index + 1, 0, scoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a scoring rule\n   * @param index the index of the scoring rule\n   */\n  authoringViewScoringRuleDeleteClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.scoringRules != null) {\n\n      // get the scoring rule\n      var scoringRule = this.authoringComponentContent.cRater.scoringRules[index];\n\n      if (scoringRule != null) {\n\n        // get the score and feedback text\n        var score = scoringRule.score;\n        var feedbackText = scoringRule.feedbackText;\n\n        // make sure the author really wants to delete the scoring rule\n        //var answer = confirm('Are you sure you want to delete this scoring rule?\\n\\nScore: ' + score + '\\n\\n' + 'Feedback Text: ' + feedbackText);\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisScoringRule', {score: score, feedbackText: feedbackText}));\n\n        if (answer) {\n          // the author answered yes to delete the scoring rule\n          this.authoringComponentContent.cRater.scoringRules.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a new notification. Currently assumes this is a notification based on CRaterResult, but\n   * we can add different types in the future.\n   */\n  authoringAddNotification() {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // create a new notification\n      let newNotification = {\n        notificationType: 'CRaterResult',\n        enableCriteria: {\n          scoreSequence: ['', '']\n        },\n        isAmbient: false,\n        dismissCode: 'apple',\n        isNotifyTeacher: true,\n        isNotifyStudent: true,\n        notificationMessageToStudent: '{{username}}, ' + this.$translate('openResponse.youGotAScoreOf') + ' {{score}}. ' + this.$translate('openResponse.pleaseTalkToYourTeacher') + '.',\n        notificationMessageToTeacher: '{{username}} ' + this.$translate('openResponse.gotAScoreOf') + ' {{score}}.'\n      };\n\n      // add the new notification\n      this.authoringComponentContent.notificationSettings.notifications.push(newNotification);\n\n      // the author has made changes so we will save the component content\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Add a multiple attempt scoring rule\n   */\n  authoringAddMultipleAttemptScoringRule() {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // create a new multiple attempt scoring rule\n      var newMultipleAttemptScoringRule = {};\n      newMultipleAttemptScoringRule.scoreSequence = ['', ''];\n      newMultipleAttemptScoringRule.feedbackText = '';\n\n      // add the new multiple attempt scoring rule\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules.push(newMultipleAttemptScoringRule);\n\n      /*\n       * the author has made changes so we will save the component\n       * content\n       */\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Move a multiple attempt scoring rule up\n   * @param index\n   */\n  authoringViewMultipleAttemptScoringRuleUpClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // make sure the multiple attempt scoring rule is not already at the top\n      if (index != 0) {\n        // the multiple attempt scoring rule is not at the top\n\n        // get the multiple attempt scoring rule\n        var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n        // remove the multiple attempt scoring rule\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n        // add the multiple attempt scoring rule back at the position one index back\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index - 1, 0, multipleAttemptScoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a multiple attempt scoring rule down\n   * @param index the index of the multiple attempt scoring rule\n   */\n  authoringViewMultipleAttemptScoringRuleDownClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // make sure the multiple attempt scoring rule is not at the end\n      if (index != this.authoringComponentContent.cRater.multipleAttemptScoringRules.length - 1) {\n        // the multiple attempt scoring rule is not at the end\n\n        // get the multiple attempt scoring rule\n        var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n        // remove the multiple attempt scoring rule\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n        // add the multiple attempt scoring rule back at the position one index forward\n        this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index + 1, 0, multipleAttemptScoringRule);\n\n        /*\n         * the author has made changes so we will save the component\n         * content\n         */\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a multiple attempt scoring rule\n   * @param index the index of the mulitple attempt scoring rule\n   */\n  authoringViewMultipleAttemptScoringRuleDeleteClicked(index) {\n\n    if (this.authoringComponentContent.cRater != null &&\n      this.authoringComponentContent.cRater.multipleAttemptScoringRules != null) {\n\n      // get the multiple attempt scoring rule\n      var multipleAttemptScoringRule = this.authoringComponentContent.cRater.multipleAttemptScoringRules[index];\n\n      if (multipleAttemptScoringRule != null) {\n\n        // get the score sequence\n        var scoreSequence = multipleAttemptScoringRule.scoreSequence;\n        var previousScore = '';\n        var currentScore = '';\n\n        if (scoreSequence != null) {\n          previousScore = scoreSequence[0];\n          currentScore = scoreSequence[1];\n        }\n\n        // get the feedback text\n        var feedbackText = multipleAttemptScoringRule.feedbackText;\n\n        // make sure the author really wants to delete the multiple attempt scoring rule\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisMultipleAttemptScoringRule', {previousScore: previousScore, currentScore: currentScore, feedbackText: feedbackText}));\n\n        if (answer) {\n          // the author answered yes to delete the multiple attempt scoring rule\n          this.authoringComponentContent.cRater.multipleAttemptScoringRules.splice(index, 1);\n\n          /*\n           * the author has made changes so we will save the component\n           * content\n           */\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * Move a notification up\n   * @param index of the notification\n   */\n  authoringViewNotificationUpClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // make sure the notification is not already at the top\n      if (index != 0) {\n        // the notification is not at the top\n\n        // get the notification\n        var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n        // remove the notification\n        this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n        // add the notification back at the position one index back\n        this.authoringComponentContent.notificationSettings.notifications.splice(index - 1, 0, notification);\n\n        // the author has made changes so we will save the component content\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Move a notification down\n   * @param index the index of the notification\n   */\n  authoringViewNotificationDownClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // make sure the notification is not at the end\n      if (index != this.authoringComponentContent.notificationSettings.notifications.length - 1) {\n        // the notification is not at the end\n\n        // get the notification\n        var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n        // remove the notification\n        this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n        // add the notification back at the position one index forward\n        this.authoringComponentContent.notificationSettings.notifications.splice(index + 1, 0, notification);\n\n        // the author has made changes so we will save the component content\n        this.authoringViewComponentChanged();\n      }\n    }\n  }\n\n  /**\n   * Delete a notification\n   * @param index the index of the notification\n   */\n  authoringViewNotificationDeleteClicked(index) {\n\n    if (this.authoringComponentContent.notificationSettings != null &&\n      this.authoringComponentContent.notificationSettings.notifications != null) {\n\n      // get the notification\n      var notification = this.authoringComponentContent.notificationSettings.notifications[index];\n\n      if (notification != null) {\n\n        // get the score sequence\n        var scoreSequence = notification.enableCriteria.scoreSequence;\n        var previousScore = '';\n        var currentScore = '';\n\n        if (scoreSequence != null) {\n          previousScore = scoreSequence[0];\n          currentScore = scoreSequence[1];\n        }\n\n        // make sure the author really wants to delete the notification\n        var answer = confirm(this.$translate('openResponse.areYouSureYouWantToDeleteThisNotification', {previousScore: previousScore, currentScore: currentScore}));\n\n        if (answer) {\n          // the author answered yes to delete the notification\n          this.authoringComponentContent.notificationSettings.notifications.splice(index, 1);\n\n          // the author has made changes so we will save the component content\n          this.authoringViewComponentChanged();\n        }\n      }\n    }\n  }\n\n  /**\n   * The \"Enable CRater\" checkbox was clicked\n   */\n  authoringViewEnableCRaterClicked() {\n\n    if (this.authoringComponentContent.enableCRater) {\n      // CRater was turned on\n\n      if (this.authoringComponentContent.cRater == null) {\n        /*\n         * the cRater object does not exist in the component content\n         * so we will create it\n         */\n\n        // create the cRater object\n        var cRater = {};\n        cRater.itemType = 'CRATER';\n        cRater.itemId = '';\n        cRater.scoreOn = 'submit';\n        cRater.showScore = true;\n        cRater.showFeedback = true;\n        cRater.scoringRules = [];\n        cRater.enableMultipleAttemptScoringRules = false;\n        cRater.multipleAttemptScoringRules = []\n\n        // set the cRater object into the component content\n        this.authoringComponentContent.cRater = cRater;\n      }\n\n      // turn on the submit button\n      //this.authoringComponentContent.showSubmitButton = true;\n      this.setShowSubmitButtonValue(true);\n    } else {\n      // CRater was turned off\n\n      // turn off the submit button\n      this.setShowSubmitButtonValue(false);\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The \"Enable Multiple Attempt Feedback\" checkbox was clicked\n   */\n  enableMultipleAttemptScoringRulesClicked() {\n\n    // get the cRater object from the component content\n    var cRater = this.authoringComponentContent.cRater;\n\n    if (cRater != null && cRater.multipleAttemptScoringRules == null) {\n      /*\n       * the multiple attempt scoring rules array does not exist so\n       * we will create it\n       */\n      cRater.multipleAttemptScoringRules = [];\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * The \"Enable Notifications\" checkbox was clicked\n   */\n  authoringViewEnableNotificationsClicked() {\n\n    if (this.authoringComponentContent.enableNotifications) {\n      // Notifications was turned on\n\n      if (this.authoringComponentContent.notificationSettings == null) {\n        /*\n         * the NotificationSettings object does not exist in the component content\n         * so we will create it\n         */\n        this.authoringComponentContent.notificationSettings = {\n          notifications: []\n        };\n      }\n    }\n\n    /*\n     * the author has made changes so we will save the component\n     * content\n     */\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Check if a component generates student work\n   * @param component the component\n   * @return whether the component generates student work\n   */\n  componentHasWork(component) {\n    var result = true;\n\n    if (component != null) {\n      result = this.ProjectService.componentHasWork(component);\n    }\n\n    return result;\n  }\n\n  /**\n   * Returns all the revisions made by this user for the specified component\n   */\n  getRevisions() {\n    // get the component states for this component\n    return this.StudentDataService.getComponentStatesByNodeIdAndComponentId(this.nodeId, this.componentId);\n  };\n\n  /**\n   * The author has changed the rubric\n   */\n  summernoteRubricHTMLChanged() {\n\n    // get the summernote rubric html\n    var html = this.summernoteRubricHTML;\n\n    /*\n     * remove the absolute asset paths\n     * e.g.\n     * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = this.ConfigService.removeAbsoluteAssetPaths(html);\n\n    /*\n     * replace <a> and <button> elements with <wiselink> elements when\n     * applicable\n     */\n    html = this.UtilService.insertWISELinks(html);\n\n    // update the component rubric\n    this.authoringComponentContent.rubric = html;\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Set the show submit button value\n   * @param show whether to show the submit button\n   */\n  setShowSubmitButtonValue(show) {\n\n    if (show == null || show == false) {\n      // we are hiding the submit button\n      this.authoringComponentContent.showSaveButton = false;\n      this.authoringComponentContent.showSubmitButton = false;\n    } else {\n      // we are showing the submit button\n      this.authoringComponentContent.showSaveButton = true;\n      this.authoringComponentContent.showSubmitButton = true;\n    }\n\n    /*\n     * notify the parent node that this component is changing its\n     * showSubmitButton value so that it can show save buttons on the\n     * step or sibling components accordingly\n     */\n    this.$scope.$emit('componentShowSubmitButtonValueChanged', {nodeId: this.nodeId, componentId: this.componentId, showSubmitButton: show});\n  }\n\n  /**\n   * The showSubmitButton value has changed\n   */\n  showSubmitButtonValueChanged() {\n\n    /*\n     * perform additional processing for when we change the showSubmitButton\n     * value\n     */\n    this.setShowSubmitButtonValue(this.authoringComponentContent.showSubmitButton);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a tag\n   */\n  addTag() {\n\n    if (this.authoringComponentContent.tags == null) {\n      // initialize the tags array\n      this.authoringComponentContent.tags = [];\n    }\n\n    // add a tag\n    this.authoringComponentContent.tags.push('');\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag up\n   * @param index the index of the tag to move up\n   */\n  moveTagUp(index) {\n\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index back\n      this.authoringComponentContent.tags.splice(index - 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a tag down\n   * @param index the index of the tag to move down\n   */\n  moveTagDown(index) {\n\n    if (index < this.authoringComponentContent.tags.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the tag\n      let tag = this.authoringComponentContent.tags[index];\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n\n      // insert the tag one index forward\n      this.authoringComponentContent.tags.splice(index + 1, 0, tag);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a tag\n   * @param index the index of the tag to delete\n   */\n  deleteTag(index) {\n\n    // ask the author if they are sure they want to delete the tag\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisTag'));\n\n    if (answer) {\n      // the author answered yes to delete the tag\n\n      // remove the tag\n      this.authoringComponentContent.tags.splice(index, 1);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Get the import previous work node id\n   * @return the import previous work node id or null\n   */\n  getImportPreviousWorkNodeId() {\n    var importPreviousWorkNodeId = null;\n\n    if (this.componentContent != null && this.componentContent.importPreviousWorkNodeId != null) {\n      importPreviousWorkNodeId = this.componentContent.importPreviousWorkNodeId;\n\n      if (importPreviousWorkNodeId == null || importPreviousWorkNodeId == '') {\n        /*\n         * check if the node id is in the field that we used to store\n         * the import previous work node id in\n         */\n        importPreviousWorkNodeId = this.componentContent.importWorkNodeId;\n      }\n    }\n\n    return importPreviousWorkNodeId;\n  }\n\n  /**\n   * Get the import previous work component id\n   * @return the import previous work component id or null\n   */\n  getImportPreviousWorkComponentId() {\n    var importPreviousWorkComponentId = null;\n\n    if (this.componentContent != null && this.componentContent.importPreviousWorkComponentId != null) {\n      var importPreviousWorkComponentId = this.componentContent.importPreviousWorkComponentId;\n\n      if (importPreviousWorkComponentId == null || importPreviousWorkComponentId == '') {\n        /*\n         * check if the component id is in the field that we used to store\n         * the import previous work component id in\n         */\n        importPreviousWorkComponentId = this.componentContent.importWorkComponentId;\n      }\n    }\n\n    return importPreviousWorkComponentId;\n  }\n\n  /**\n   * Import any work we need from connected components\n   */\n  handleConnectedComponents() {\n\n    // get the connected components\n    var connectedComponents = this.componentContent.connectedComponents;\n\n    if (connectedComponents != null) {\n\n      var componentStates = [];\n\n      // loop through all the connected components\n      for (var c = 0; c < connectedComponents.length; c++) {\n        var connectedComponent = connectedComponents[c];\n\n        if (connectedComponent != null) {\n          var nodeId = connectedComponent.nodeId;\n          var componentId = connectedComponent.componentId;\n          var type = connectedComponent.type;\n\n          if (type == 'showWork') {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n\n            // we are showing work so we will not allow the student to edit it\n            this.isDisabled = true;\n          } else if (type == 'importWork' || type == null) {\n            // we are getting the work from this student\n\n            // get the latest component state from the component\n            var componentState = this.StudentDataService.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n\n            if (componentState != null) {\n              componentStates.push(this.UtilService.makeCopyOfJSONObject(componentState));\n            }\n          }\n        }\n      }\n\n      // merge the student responses from all the component states\n      var mergedComponentState = this.createMergedComponentState(componentStates);\n\n      // set the student work into the component\n      this.setStudentWork(mergedComponentState);\n\n      // make the work dirty so that it gets saved\n      this.studentDataChanged();\n    }\n  }\n\n  /**\n   * Create a component state with the merged student responses\n   * @param componentStates an array of component states\n   * @return a component state with the merged student responses\n   */\n  createMergedComponentState(componentStates) {\n\n    // create a new component state\n    let mergedComponentState = this.NodeService.createNewComponentState();\n\n    if (componentStates != null) {\n\n      let mergedResponse = '';\n\n      // loop through all the component state\n      for (let c = 0; c < componentStates.length; c++) {\n        let componentState = componentStates[c];\n\n        if (componentState != null) {\n          let studentData = componentState.studentData;\n\n          if (studentData != null) {\n\n            // get the student response\n            let response = studentData.response;\n\n            if (response != null && response != '') {\n              if (mergedResponse != '') {\n                // add a new line between the responses\n                mergedResponse += '\\n';\n              }\n\n              // append the response\n              mergedResponse += response;\n            }\n          }\n        }\n      }\n\n      if (mergedResponse != null && mergedResponse != '') {\n        // set the merged response into the merged component state\n        mergedComponentState.studentData = {};\n        mergedComponentState.studentData.response = mergedResponse;\n      }\n    }\n\n    return mergedComponentState;\n  }\n\n  /**\n   * Add a connected component\n   */\n  authoringAddConnectedComponent() {\n\n    /*\n     * create the new connected component object that will contain a\n     * node id and component id\n     */\n    var newConnectedComponent = {};\n    newConnectedComponent.nodeId = this.nodeId;\n    newConnectedComponent.componentId = null;\n    newConnectedComponent.type = null;\n    this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(newConnectedComponent);\n\n    // initialize the array of connected components if it does not exist yet\n    if (this.authoringComponentContent.connectedComponents == null) {\n      this.authoringComponentContent.connectedComponents = [];\n    }\n\n    // add the connected component\n    this.authoringComponentContent.connectedComponents.push(newConnectedComponent);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Automatically set the component id for the connected component if there\n   * is only one viable option.\n   * @param connectedComponent the connected component object we are authoring\n   */\n  authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent) {\n    if (connectedComponent != null) {\n      let components = this.getComponentsByNodeId(connectedComponent.nodeId);\n      if (components != null) {\n        let numberOfAllowedComponents = 0;\n        let allowedComponent = null;\n        for (let component of components) {\n          if (component != null) {\n            if (this.isConnectedComponentTypeAllowed(component.type) &&\n                component.id != this.componentId) {\n              // we have found a viable component we can connect to\n              numberOfAllowedComponents += 1;\n              allowedComponent = component;\n            }\n          }\n        }\n\n        if (numberOfAllowedComponents == 1) {\n          /*\n           * there is only one viable component to connect to so we\n           * will use it\n           */\n          connectedComponent.componentId = allowedComponent.id;\n          connectedComponent.type = 'importWork';\n        }\n      }\n    }\n  }\n\n  /**\n   * Delete a connected component\n   * @param index the index of the component to delete\n   */\n  authoringDeleteConnectedComponent(index) {\n\n    // ask the author if they are sure they want to delete the connected component\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisConnectedComponent'));\n\n    if (answer) {\n      // the author answered yes to delete\n\n      if (this.authoringComponentContent.connectedComponents != null) {\n        this.authoringComponentContent.connectedComponents.splice(index, 1);\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Get the connected component type\n   * @param connectedComponent get the component type of this connected component\n   * @return the connected component type\n   */\n  authoringGetConnectedComponentType(connectedComponent) {\n\n    var connectedComponentType = null;\n\n    if (connectedComponent != null) {\n\n      // get the node id and component id of the connected component\n      var nodeId = connectedComponent.nodeId;\n      var componentId = connectedComponent.componentId;\n\n      // get the component\n      var component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        // get the component type\n        connectedComponentType = component.type;\n      }\n    }\n\n    return connectedComponentType;\n  }\n\n  /**\n   * The connected component node id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentNodeIdChanged(connectedComponent) {\n    if (connectedComponent != null) {\n      connectedComponent.componentId = null;\n      connectedComponent.type = null;\n      this.authoringAutomaticallySetConnectedComponentComponentIdIfPossible(connectedComponent);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component component id has changed\n   * @param connectedComponent the connected component that has changed\n   */\n  authoringConnectedComponentComponentIdChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      // default the type to import work\n      connectedComponent.type = 'importWork';\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * The connected component type has changed\n   * @param connectedComponent the connected component that changed\n   */\n  authoringConnectedComponentTypeChanged(connectedComponent) {\n\n    if (connectedComponent != null) {\n\n      if (connectedComponent.type == 'importWork') {\n        /*\n         * the type has changed to import work\n         */\n      } else if (connectedComponent.type == 'showWork') {\n        /*\n         * the type has changed to show work\n         */\n      }\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if we are allowed to connect to this component type\n   * @param componentType the component type\n   * @return whether we can connect to the component type\n   */\n  isConnectedComponentTypeAllowed(componentType) {\n\n    if (componentType != null) {\n\n      let allowedConnectedComponentTypes = this.allowedConnectedComponentTypes;\n\n      // loop through the allowed connected component types\n      for (let a = 0; a < allowedConnectedComponentTypes.length; a++) {\n        let allowedConnectedComponentType = allowedConnectedComponentTypes[a];\n\n        if (allowedConnectedComponentType != null) {\n          if (componentType == allowedConnectedComponentType.type) {\n            // the component type is allowed\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * The show JSON button was clicked to show or hide the JSON authoring\n   */\n  showJSONButtonClicked() {\n    // toggle the JSON authoring textarea\n    this.showJSONAuthoring = !this.showJSONAuthoring;\n\n    if (this.jsonStringChanged && !this.showJSONAuthoring) {\n      /*\n       * the author has changed the JSON and has just closed the JSON\n       * authoring view so we will save the component\n       */\n      this.advancedAuthoringViewComponentChanged();\n\n      // scroll to the top of the component\n      this.$rootScope.$broadcast('scrollToComponent', { componentId: this.componentId });\n\n      this.jsonStringChanged = false;\n    }\n  }\n\n  /**\n   * The author has changed the JSON manually in the advanced view\n   */\n  authoringJSONChanged() {\n    this.jsonStringChanged = true;\n  }\n\n  /**\n   * The Use Completion Criteria checkbox was clicked. We will toggle the\n   * completion criteria in the component content.\n   * @return False if we want to cancel the click and not perform any changes.\n   * True if we want to perform the changes.\n   */\n  useCustomCompletionCriteriaClicked() {\n    if (this.useCustomCompletionCriteria == false) {\n      /*\n       * The completion criteria was changed from true to false which\n       * means we will delete the completionCriteria object. We will confirm\n       * with the author that they want to delete the completion criteria.\n       */\n      let answer = confirm(this.$translate('areYouSureYouWantToDeleteTheCustomCompletionCriteria'));\n      if (!answer) {\n        // the author answered no so we will abort\n        this.useCustomCompletionCriteria = true;\n        return false;\n      }\n    }\n\n    if (this.useCustomCompletionCriteria) {\n      /*\n       * We are using a completion criteria so we will populate it if it\n       * doesn't already exist.\n       */\n      if (this.authoringComponentContent.completionCriteria == null) {\n        this.authoringComponentContent.completionCriteria = {\n          inOrder: true,\n          criteria: []\n        };\n      }\n    } else {\n      // we are not using a completion criteria so we will delete it\n      delete this.authoringComponentContent.completionCriteria;\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n    return true;\n  }\n\n  /**\n   * Move a completion criteria up.\n   * @param index The index of the completion criteria to move up.\n   */\n  moveCompletionCriteriaUp(index) {\n    if (index > 0) {\n      // the index is not at the top so we can move it up\n\n      // remember the criteria\n      let criteria = this.authoringComponentContent.completionCriteria.criteria[index];\n\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // insert the criteria one index back\n      this.authoringComponentContent.completionCriteria.criteria.splice(index - 1, 0, criteria);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Move a completion criteria down.\n   * @param index The index of the completion criteria to move down.\n   */\n  moveCompletionCriteriaDown(index) {\n    if (index < this.authoringComponentContent.completionCriteria.criteria.length - 1) {\n      // the index is not at the bottom so we can move it down\n\n      // remember the criteria\n      let criteria = this.authoringComponentContent.completionCriteria.criteria[index];\n\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // insert the criteria one index forward\n      this.authoringComponentContent.completionCriteria.criteria.splice(index + 1, 0, criteria);\n    }\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Add a completion criteria.\n   */\n  authoringAddCompletionCriteria() {\n    let newCompletionCriteria = {\n      nodeId: this.nodeId,\n      componentId: this.componentId,\n      name: 'isSubmitted'\n    };\n    this.authoringComponentContent.completionCriteria.criteria.push(newCompletionCriteria);\n\n    // the authoring component content has changed so we will save the project\n    this.authoringViewComponentChanged();\n  }\n\n  /**\n   * Delete a completion criteria.\n   * @param index The index of the completion criteria.\n   */\n  authoringDeleteCompletionCriteria(index) {\n    let answer = confirm(this.$translate('areYouSureYouWantToDeleteThisCompletionCriteria'));\n    if (answer) {\n      // remove the criteria\n      this.authoringComponentContent.completionCriteria.criteria.splice(index, 1);\n\n      // the authoring component content has changed so we will save the project\n      this.authoringViewComponentChanged();\n    }\n  }\n\n  /**\n   * Check if the item id is a valid CRater item id.\n   * @param itemId A string.\n   */\n  verifyCRaterItemId(itemId) {\n    // clear the Valid/Invalid text\n    this.cRaterItemIdIsValid = null;\n\n    // turn on the \"Verifying...\" text\n    this.isVerifyingCRaterItemId = true;\n\n    this.CRaterService.verifyCRaterItemId(itemId).then((isValid) => {\n      // turn off the \"Verifying...\" text\n      this.isVerifyingCRaterItemId = false;\n\n      // set the Valid/Invalid text\n      this.cRaterItemIdIsValid = isValid;\n    });\n  }\n};\n\nOpenResponseController.$inject = [\n  '$filter',\n  '$injector',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$scope',\n  'AnnotationService',\n  'ConfigService',\n  'CRaterService',\n  'NodeService',\n  'NotebookService',\n  'NotificationService',\n  'OpenResponseService',\n  'ProjectService',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default OpenResponseController;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/openResponse/openResponseService.es6 b/src/main/webapp/wise5/components/openResponse/openResponseService.es6
index 54fff76c29..3c46e94b53 100644
--- a/src/main/webapp/wise5/components/openResponse/openResponseService.es6
+++ b/src/main/webapp/wise5/components/openResponse/openResponseService.es6
@@ -1,97 +1,22 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class OpenResponseService extends NodeService {
-  constructor($filter,
-      StudentDataService,
-      UtilService) {
-    super();
-    this.$filter = $filter;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
+class OpenResponseService extends ComponentService {
+  constructor($filter, StudentDataService, UtilService) {
+    super($filter, StudentDataService, UtilService);
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Open Response"
-   */
   getComponentTypeLabel() {
     return this.$translate('openResponse.componentTypeLabel');
   }
 
-  /**
-   * Create a OpenResponse component object
-   * @returns a new OpenResponse component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'OpenResponse';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     component.starterSentence = null;
     component.isStudentAttachmentEnabled = false;
     return component;
   }
 
-  /**
-   * Copies a OpenResponse component object
-   * @returns a copied OpenResponse component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.starterSentence = componentToCopy.starterSentence;
-    component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;
-    return component;
-  }
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'OpenResponse') {
-        // the other component is an OpenResponse component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     let result = false;
 
@@ -139,159 +64,53 @@ class OpenResponseService extends NodeService {
     return result;
   };
 
-  /**
-   * Check if we need to display the annotation to the student
-   * @param componentContent the component content
-   * @param annotation the annotation
-   * @returns whether we need to display the annotation to the student
-   */
   displayAnnotation(componentContent, annotation) {
-
-    var result = true;
-
-    if (componentContent != null && annotation != null) {
-
+    if (annotation.displayToStudent === false) {
+      return false;
+    } else {
       if (annotation.type == 'score') {
 
       } else if (annotation.type == 'comment') {
 
       } else if (annotation.type == 'autoScore') {
-        // this is an auto graded score annotation
-
         if (componentContent.cRater != null && !componentContent.cRater.showScore) {
-          // we do not want to show the CRater score
-          result = false;
+          return false;
         } else if (componentContent.showAutoScore === false) {
-          // do not show the auto score to the student
-          result = false;
+          return false;
         }
       } else if (annotation.type == 'autoComment') {
-        // this is an auto graded comment annotation
-
         if (componentContent.cRater != null && !componentContent.cRater.showFeedback) {
-          // we do not want to show the CRater comment
-          result = false;
+          return false;
         } else if (componentContent.showAutoFeedback === false) {
-          // do not show the auto comment to the student
-          result = false;
+          return false;
         }
       }
-
-      if (annotation.displayToStudent === false) {
-        // do not display the annotation to the studentr
-        result = false;
-      }
     }
-
-    return result;
-  }
-
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
     return true;
   }
 
-  /**
-   * Get the human readable student data string
-   * @param componentState the component state
-   * @return a human readable student data string
-   */
   getStudentDataString(componentState) {
-
-    var studentDataString = '';
-
-    if (componentState != null) {
-      var studentData = componentState.studentData;
-
-      if (studentData != null) {
-        // get the response the student typed
-        studentDataString = studentData.response;
-      }
-    }
-
-    return studentDataString;
+    return componentState.studentData.response;
   }
 
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
+  componentStateHasStudentWork(componentState, componentContent) {
+    if (this.hasStarterSentence(componentContent)) {
+      let response = componentState.studentData.response;
+      let starterSentence = componentContent.starterSentence;
+      return this.hasResponse(componentState) && response !== starterSentence;
+    } else {
+      return this.hasResponse(componentState);
+    }
   }
 
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
+  hasStarterSentence(componentContent) {
+    const starterSentence = componentContent.starterSentence;
+    return starterSentence != null && starterSentence !== '';
   }
 
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
-  componentStateHasStudentWork(componentState, componentContent) {
-
-    if (componentState != null) {
-
-      let studentData = componentState.studentData;
-
-      if (studentData != null) {
-
-        // get the response from the student data
-        let response = studentData.response;
-
-        if (componentContent == null) {
-          // the component content was not provided
-
-          if (response != null && response !== '') {
-            // the student has work
-            return true;
-          }
-        } else {
-          // the component content was provided
-
-          let starterSentence = componentContent.starterSentence;
-
-          if (starterSentence == null || starterSentence === '') {
-            // there is no starter sentence
-
-            if (response != null && response !== '') {
-              // the student has work
-              return true;
-            }
-          } else {
-            /*
-             * there is a starter sentence so we will compare it
-             * with the student response
-             */
-
-            if (response != null && response !== '' && response !== starterSentence) {
-              /*
-               * the student has a response that is different than
-               * the starter sentence
-               */
-              return true;
-            }
-          }
-        }
-      }
-    }
-
-    return false;
+  hasResponse(componentState) {
+    const response = componentState.studentData.response;
+    return response != null && response !== '';
   }
 }
 
diff --git a/src/main/webapp/wise5/components/openResponse/openResponseService.js b/src/main/webapp/wise5/components/openResponse/openResponseService.js
index 9b79c25a07..6f6da13336 100644
--- a/src/main/webapp/wise5/components/openResponse/openResponseService.js
+++ b/src/main/webapp/wise5/components/openResponse/openResponseService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,118 +20,31 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var OpenResponseService = function (_NodeService) {
-  _inherits(OpenResponseService, _NodeService);
+var OpenResponseService = function (_ComponentService) {
+  _inherits(OpenResponseService, _ComponentService);
 
   function OpenResponseService($filter, StudentDataService, UtilService) {
     _classCallCheck(this, OpenResponseService);
 
-    var _this = _possibleConstructorReturn(this, (OpenResponseService.__proto__ || Object.getPrototypeOf(OpenResponseService)).call(this));
-
-    _this.$filter = $filter;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
-    return _this;
+    return _possibleConstructorReturn(this, (OpenResponseService.__proto__ || Object.getPrototypeOf(OpenResponseService)).call(this, $filter, StudentDataService, UtilService));
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Open Response"
-   */
-
-
   _createClass(OpenResponseService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('openResponse.componentTypeLabel');
     }
-
-    /**
-     * Create a OpenResponse component object
-     * @returns a new OpenResponse component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(OpenResponseService.prototype.__proto__ || Object.getPrototypeOf(OpenResponseService.prototype), 'createComponent', this).call(this);
       component.type = 'OpenResponse';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       component.starterSentence = null;
       component.isStudentAttachmentEnabled = false;
       return component;
     }
-
-    /**
-     * Copies a OpenResponse component object
-     * @returns a copied OpenResponse component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.starterSentence = componentToCopy.starterSentence;
-      component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;
-      return component;
-    }
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-
-  }, {
-    key: 'populateComponentState',
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'OpenResponse') {
-          // the other component is an OpenResponse component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       var result = false;
 
@@ -178,177 +93,58 @@ var OpenResponseService = function (_NodeService) {
     }
   }, {
     key: 'displayAnnotation',
-
-
-    /**
-     * Check if we need to display the annotation to the student
-     * @param componentContent the component content
-     * @param annotation the annotation
-     * @returns whether we need to display the annotation to the student
-     */
     value: function displayAnnotation(componentContent, annotation) {
-
-      var result = true;
-
-      if (componentContent != null && annotation != null) {
-
+      if (annotation.displayToStudent === false) {
+        return false;
+      } else {
         if (annotation.type == 'score') {} else if (annotation.type == 'comment') {} else if (annotation.type == 'autoScore') {
-          // this is an auto graded score annotation
-
           if (componentContent.cRater != null && !componentContent.cRater.showScore) {
-            // we do not want to show the CRater score
-            result = false;
+            return false;
           } else if (componentContent.showAutoScore === false) {
-            // do not show the auto score to the student
-            result = false;
+            return false;
           }
         } else if (annotation.type == 'autoComment') {
-          // this is an auto graded comment annotation
-
           if (componentContent.cRater != null && !componentContent.cRater.showFeedback) {
-            // we do not want to show the CRater comment
-            result = false;
+            return false;
           } else if (componentContent.showAutoFeedback === false) {
-            // do not show the auto comment to the student
-            result = false;
+            return false;
           }
         }
-
-        if (annotation.displayToStudent === false) {
-          // do not display the annotation to the studentr
-          result = false;
-        }
       }
-
-      return result;
-    }
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-
-  }, {
-    key: 'componentHasWork',
-    value: function componentHasWork(component) {
       return true;
     }
-
-    /**
-     * Get the human readable student data string
-     * @param componentState the component state
-     * @return a human readable student data string
-     */
-
   }, {
     key: 'getStudentDataString',
     value: function getStudentDataString(componentState) {
-
-      var studentDataString = '';
-
-      if (componentState != null) {
-        var studentData = componentState.studentData;
-
-        if (studentData != null) {
-          // get the response the student typed
-          studentDataString = studentData.response;
-        }
-      }
-
-      return studentDataString;
+      return componentState.studentData.response;
     }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
   }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
+    key: 'componentStateHasStudentWork',
+    value: function componentStateHasStudentWork(componentState, componentContent) {
+      if (this.hasStarterSentence(componentContent)) {
+        var response = componentState.studentData.response;
+        var starterSentence = componentContent.starterSentence;
+        return this.hasResponse(componentState) && response !== starterSentence;
+      } else {
+        return this.hasResponse(componentState);
+      }
     }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
   }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
+    key: 'hasStarterSentence',
+    value: function hasStarterSentence(componentContent) {
+      var starterSentence = componentContent.starterSentence;
+      return starterSentence != null && starterSentence !== '';
     }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
-    key: 'componentStateHasStudentWork',
-    value: function componentStateHasStudentWork(componentState, componentContent) {
-
-      if (componentState != null) {
-
-        var studentData = componentState.studentData;
-
-        if (studentData != null) {
-
-          // get the response from the student data
-          var response = studentData.response;
-
-          if (componentContent == null) {
-            // the component content was not provided
-
-            if (response != null && response !== '') {
-              // the student has work
-              return true;
-            }
-          } else {
-            // the component content was provided
-
-            var starterSentence = componentContent.starterSentence;
-
-            if (starterSentence == null || starterSentence === '') {
-              // there is no starter sentence
-
-              if (response != null && response !== '') {
-                // the student has work
-                return true;
-              }
-            } else {
-              /*
-               * there is a starter sentence so we will compare it
-               * with the student response
-               */
-
-              if (response != null && response !== '' && response !== starterSentence) {
-                /*
-                 * the student has a response that is different than
-                 * the starter sentence
-                 */
-                return true;
-              }
-            }
-          }
-        }
-      }
-
-      return false;
+    key: 'hasResponse',
+    value: function hasResponse(componentState) {
+      var response = componentState.studentData.response;
+      return response != null && response !== '';
     }
   }]);
 
   return OpenResponseService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 OpenResponseService.$inject = ['$filter', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/openResponse/openResponseService.js.map b/src/main/webapp/wise5/components/openResponse/openResponseService.js.map
index 0820eb847d..01356f9072 100644
--- a/src/main/webapp/wise5/components/openResponse/openResponseService.js.map
+++ b/src/main/webapp/wise5/components/openResponse/openResponseService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["openResponseService.es6"],"names":["OpenResponseService","$filter","StudentDataService","UtilService","$translate","component","id","generateKey","type","prompt","showSaveButton","showSubmitButton","starterSentence","isStudentAttachmentEnabled","componentToCopy","createComponent","componentStateFromOtherComponent","componentState","createComponentState","otherComponentType","componentType","studentData","studentDataCopy","makeCopyOfJSONObject","componentStates","componentEvents","nodeEvents","node","result","length","submitRequired","i","l","state","isSubmit","response","completionCriteria","isCompletionCriteriaSatisfied","componentContent","annotation","cRater","showScore","showAutoScore","showFeedback","showAutoFeedback","displayToStudent","studentDataString","$inject"],"mappings":";;;;;;;;AAAA;;;;;;;;;;;;IAEMA,mB;;;AACJ,+BAAYC,OAAZ,EACIC,kBADJ,EAEIC,WAFJ,EAEiB;AAAA;;AAAA;;AAEf,UAAKF,OAAL,GAAeA,OAAf;AACA,UAAKC,kBAAL,GAA0BA,kBAA1B;AACA,UAAKC,WAAL,GAAmBA,WAAnB;AACA,UAAKC,UAAL,GAAkB,MAAKH,OAAL,CAAa,WAAb,CAAlB;AALe;AAMhB;;AAED;;;;;;;;;4CAKwB;AACtB,aAAO,KAAKG,UAAL,CAAgB,iCAAhB,CAAP;AACD;;AAED;;;;;;;sCAIkB;AAChB,UAAIC,YAAY,EAAhB;AACAA,gBAAUC,EAAV,GAAe,KAAKH,WAAL,CAAiBI,WAAjB,EAAf;AACAF,gBAAUG,IAAV,GAAiB,cAAjB;AACAH,gBAAUI,MAAV,GAAmB,EAAnB;AACAJ,gBAAUK,cAAV,GAA2B,KAA3B;AACAL,gBAAUM,gBAAV,GAA6B,KAA7B;AACAN,gBAAUO,eAAV,GAA4B,IAA5B;AACAP,gBAAUQ,0BAAV,GAAuC,KAAvC;AACA,aAAOR,SAAP;AACD;;AAED;;;;;;;kCAIcS,e,EAAiB;AAC7B,UAAIT,YAAY,KAAKU,eAAL,EAAhB;AACAV,gBAAUI,MAAV,GAAmBK,gBAAgBL,MAAnC;AACAJ,gBAAUK,cAAV,GAA2BI,gBAAgBJ,cAA3C;AACAL,gBAAUM,gBAAV,GAA6BG,gBAAgBH,gBAA7C;AACAN,gBAAUO,eAAV,GAA4BE,gBAAgBF,eAA5C;AACAP,gBAAUQ,0BAAV,GAAuCC,gBAAgBD,0BAAvD;AACA,aAAOR,SAAP;AACD;AACD;;;;;;;;;2CAMuBW,gC,EAAkC;AACvD,UAAIC,iBAAiB,IAArB;;AAEA,UAAID,oCAAoC,IAAxC,EAA8C;;AAE5C;AACAC,yBAAiB,KAAKf,kBAAL,CAAwBgB,oBAAxB,EAAjB;;AAEA;AACA,YAAIC,qBAAqBH,iCAAiCI,aAA1D;;AAEA,YAAID,uBAAuB,cAA3B,EAA2C;AACzC;;AAEA;AACA,cAAIE,cAAcL,iCAAiCK,WAAnD;;AAEA;AACA,cAAIC,kBAAkB,KAAKnB,WAAL,CAAiBoB,oBAAjB,CAAsCF,WAAtC,CAAtB;;AAEA;AACAJ,yBAAeI,WAAf,GAA6BC,eAA7B;AACD;AACF;;AAED,aAAOL,cAAP;AACD;;;;;AAED;;;;;;;;;gCASYZ,S,EAAWmB,e,EAAiBC,e,EAAiBC,U,EAAYC,I,EAAM;AACzE,UAAIC,SAAS,KAAb;;AAEA,UAAIJ,mBAAmBA,gBAAgBK,MAAvC,EAA+C;AAC7C,YAAIC,iBAAiBH,KAAKhB,gBAAL,IAA0BN,UAAUM,gBAAV,IAA8B,CAACgB,KAAKjB,cAAnF;;AAEA,YAAIoB,cAAJ,EAAoB;AAClB;AACA,eAAK,IAAIC,IAAI,CAAR,EAAWC,IAAIR,gBAAgBK,MAApC,EAA4CE,IAAIC,CAAhD,EAAmDD,GAAnD,EAAwD;AACtD,gBAAIE,QAAQT,gBAAgBO,CAAhB,CAAZ;AACA,gBAAIE,MAAMC,QAAN,IAAkBD,MAAMZ,WAA5B,EAAyC;AACvC;AACA,kBAAIY,MAAMZ,WAAN,CAAkBc,QAAtB,EAAgC;AAC9B;AACAP,yBAAS,IAAT;AACA;AACD;AACF;AACF;AACF,SAbD,MAaO;AACL;AACA,cAAII,KAAIR,gBAAgBK,MAAhB,GAAyB,CAAjC;AACA,cAAIZ,iBAAiBO,gBAAgBQ,EAAhB,CAArB;;AAEA,cAAIX,cAAcJ,eAAeI,WAAjC;;AAEA,cAAIA,eAAe,IAAnB,EAAyB;AACvB,gBAAIA,YAAYc,QAAhB,EAA0B;AACxB;AACAP,uBAAS,IAAT;AACD;AACF;AACF;AACF;;AAED,UAAIvB,UAAU+B,kBAAV,IAAgC,IAApC,EAA0C;AACxC;;;;;AAKAR,iBAAS,KAAK1B,kBAAL,CAAwBmC,6BAAxB,CAAsDhC,UAAU+B,kBAAhE,CAAT;AACD;;AAED,aAAOR,MAAP;AACD;;;;;AAED;;;;;;sCAMkBU,gB,EAAkBC,U,EAAY;;AAE9C,UAAIX,SAAS,IAAb;;AAEA,UAAIU,oBAAoB,IAApB,IAA4BC,cAAc,IAA9C,EAAoD;;AAElD,YAAIA,WAAW/B,IAAX,IAAmB,OAAvB,EAAgC,CAE/B,CAFD,MAEO,IAAI+B,WAAW/B,IAAX,IAAmB,SAAvB,EAAkC,CAExC,CAFM,MAEA,IAAI+B,WAAW/B,IAAX,IAAmB,WAAvB,EAAoC;AACzC;;AAEA,cAAI8B,iBAAiBE,MAAjB,IAA2B,IAA3B,IAAmC,CAACF,iBAAiBE,MAAjB,CAAwBC,SAAhE,EAA2E;AACzE;AACAb,qBAAS,KAAT;AACD,WAHD,MAGO,IAAIU,iBAAiBI,aAAjB,KAAmC,KAAvC,EAA8C;AACnD;AACAd,qBAAS,KAAT;AACD;AACF,SAVM,MAUA,IAAIW,WAAW/B,IAAX,IAAmB,aAAvB,EAAsC;AAC3C;;AAEA,cAAI8B,iBAAiBE,MAAjB,IAA2B,IAA3B,IAAmC,CAACF,iBAAiBE,MAAjB,CAAwBG,YAAhE,EAA8E;AAC5E;AACAf,qBAAS,KAAT;AACD,WAHD,MAGO,IAAIU,iBAAiBM,gBAAjB,KAAsC,KAA1C,EAAiD;AACtD;AACAhB,qBAAS,KAAT;AACD;AACF;;AAED,YAAIW,WAAWM,gBAAX,KAAgC,KAApC,EAA2C;AACzC;AACAjB,mBAAS,KAAT;AACD;AACF;;AAED,aAAOA,MAAP;AACD;;AAED;;;;;;;;;;qCAOiBvB,S,EAAW;AAC1B,aAAO,IAAP;AACD;;AAED;;;;;;;;yCAKqBY,c,EAAgB;;AAEnC,UAAI6B,oBAAoB,EAAxB;;AAEA,UAAI7B,kBAAkB,IAAtB,EAA4B;AAC1B,YAAII,cAAcJ,eAAeI,WAAjC;;AAEA,YAAIA,eAAe,IAAnB,EAAyB;AACvB;AACAyB,8BAAoBzB,YAAYc,QAAhC;AACD;AACF;;AAED,aAAOW,iBAAP;AACD;;AAED;;;;;;;8CAI0B;AACxB,aAAO,IAAP;AACD;;AAED;;;;;;;gDAI4B;AAC1B,aAAO,IAAP;AACD;;AAED;;;;;;;;;;;;iDAS6B7B,c,EAAgBqB,gB,EAAkB;;AAE7D,UAAIrB,kBAAkB,IAAtB,EAA4B;;AAE1B,YAAII,cAAcJ,eAAeI,WAAjC;;AAEA,YAAIA,eAAe,IAAnB,EAAyB;;AAEvB;AACA,cAAIc,WAAWd,YAAYc,QAA3B;;AAEA,cAAIG,oBAAoB,IAAxB,EAA8B;AAC5B;;AAEA,gBAAIH,YAAY,IAAZ,IAAoBA,aAAa,EAArC,EAAyC;AACvC;AACA,qBAAO,IAAP;AACD;AACF,WAPD,MAOO;AACL;;AAEA,gBAAIvB,kBAAkB0B,iBAAiB1B,eAAvC;;AAEA,gBAAIA,mBAAmB,IAAnB,IAA2BA,oBAAoB,EAAnD,EAAuD;AACrD;;AAEA,kBAAIuB,YAAY,IAAZ,IAAoBA,aAAa,EAArC,EAAyC;AACvC;AACA,uBAAO,IAAP;AACD;AACF,aAPD,MAOO;AACL;;;;;AAKA,kBAAIA,YAAY,IAAZ,IAAoBA,aAAa,EAAjC,IAAuCA,aAAavB,eAAxD,EAAyE;AACvE;;;;AAIA,uBAAO,IAAP;AACD;AACF;AACF;AACF;AACF;;AAED,aAAO,KAAP;AACD;;;;;;AAGHZ,oBAAoB+C,OAApB,GAA8B,CAC5B,SAD4B,EAE5B,oBAF4B,EAG5B,aAH4B,CAA9B;;kBAMe/C,mB","file":"openResponseService.js","sourcesContent":["import NodeService from '../../services/nodeService';\n\nclass OpenResponseService extends NodeService {\n  constructor($filter,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Open Response\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('openResponse.componentTypeLabel');\n  }\n\n  /**\n   * Create a OpenResponse component object\n   * @returns a new OpenResponse component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'OpenResponse';\n    component.prompt = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.starterSentence = null;\n    component.isStudentAttachmentEnabled = false;\n    return component;\n  }\n\n  /**\n   * Copies a OpenResponse component object\n   * @returns a copied OpenResponse component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.starterSentence = componentToCopy.starterSentence;\n    component.isStudentAttachmentEnabled = componentToCopy.isStudentAttachmentEnabled;\n    return component;\n  }\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'OpenResponse') {\n        // the other component is an OpenResponse component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.response) {\n              // there is a response so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.response) {\n            // there is a response so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    if (component.completionCriteria != null) {\n      /*\n       * there is a special completion criteria authored in this component\n       * so we will evaluate the completion criteria to see if the student\n       * has completed this component\n       */\n      result = this.StudentDataService.isCompletionCriteriaSatisfied(component.completionCriteria);\n    }\n\n    return result;\n  };\n\n  /**\n   * Check if we need to display the annotation to the student\n   * @param componentContent the component content\n   * @param annotation the annotation\n   * @returns whether we need to display the annotation to the student\n   */\n  displayAnnotation(componentContent, annotation) {\n\n    var result = true;\n\n    if (componentContent != null && annotation != null) {\n\n      if (annotation.type == 'score') {\n\n      } else if (annotation.type == 'comment') {\n\n      } else if (annotation.type == 'autoScore') {\n        // this is an auto graded score annotation\n\n        if (componentContent.cRater != null && !componentContent.cRater.showScore) {\n          // we do not want to show the CRater score\n          result = false;\n        } else if (componentContent.showAutoScore === false) {\n          // do not show the auto score to the student\n          result = false;\n        }\n      } else if (annotation.type == 'autoComment') {\n        // this is an auto graded comment annotation\n\n        if (componentContent.cRater != null && !componentContent.cRater.showFeedback) {\n          // we do not want to show the CRater comment\n          result = false;\n        } else if (componentContent.showAutoFeedback === false) {\n          // do not show the auto comment to the student\n          result = false;\n        }\n      }\n\n      if (annotation.displayToStudent === false) {\n        // do not display the annotation to the studentr\n        result = false;\n      }\n    }\n\n    return result;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Get the human readable student data string\n   * @param componentState the component state\n   * @return a human readable student data string\n   */\n  getStudentDataString(componentState) {\n\n    var studentDataString = '';\n\n    if (componentState != null) {\n      var studentData = componentState.studentData;\n\n      if (studentData != null) {\n        // get the response the student typed\n        studentDataString = studentData.response;\n      }\n    }\n\n    return studentDataString;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the response from the student data\n        let response = studentData.response;\n\n        if (componentContent == null) {\n          // the component content was not provided\n\n          if (response != null && response !== '') {\n            // the student has work\n            return true;\n          }\n        } else {\n          // the component content was provided\n\n          let starterSentence = componentContent.starterSentence;\n\n          if (starterSentence == null || starterSentence === '') {\n            // there is no starter sentence\n\n            if (response != null && response !== '') {\n              // the student has work\n              return true;\n            }\n          } else {\n            /*\n             * there is a starter sentence so we will compare it\n             * with the student response\n             */\n\n            if (response != null && response !== '' && response !== starterSentence) {\n              /*\n               * the student has a response that is different than\n               * the starter sentence\n               */\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n}\n\nOpenResponseService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default OpenResponseService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["openResponseService.es6"],"names":["OpenResponseService","$filter","StudentDataService","UtilService","$translate","component","type","starterSentence","isStudentAttachmentEnabled","componentStates","componentEvents","nodeEvents","node","result","length","submitRequired","showSubmitButton","showSaveButton","i","l","state","isSubmit","studentData","response","componentState","completionCriteria","isCompletionCriteriaSatisfied","componentContent","annotation","displayToStudent","cRater","showScore","showAutoScore","showFeedback","showAutoFeedback","hasStarterSentence","hasResponse","$inject"],"mappings":";;;;;;;;;;AAAA;;;;;;;;;;;;IAEMA,mB;;;AACJ,+BAAYC,OAAZ,EAAqBC,kBAArB,EAAyCC,WAAzC,EAAsD;AAAA;;AAAA,qIAC9CF,OAD8C,EACrCC,kBADqC,EACjBC,WADiB;AAErD;;;;4CAEuB;AACtB,aAAO,KAAKC,UAAL,CAAgB,iCAAhB,CAAP;AACD;;;sCAEiB;AAChB,UAAMC,qJAAN;AACAA,gBAAUC,IAAV,GAAiB,cAAjB;AACAD,gBAAUE,eAAV,GAA4B,IAA5B;AACAF,gBAAUG,0BAAV,GAAuC,KAAvC;AACA,aAAOH,SAAP;AACD;;;gCAEWA,S,EAAWI,e,EAAiBC,e,EAAiBC,U,EAAYC,I,EAAM;AACzE,UAAIC,SAAS,KAAb;;AAEA,UAAIJ,mBAAmBA,gBAAgBK,MAAvC,EAA+C;AAC7C,YAAIC,iBAAiBH,KAAKI,gBAAL,IAA0BX,UAAUW,gBAAV,IAA8B,CAACJ,KAAKK,cAAnF;;AAEA,YAAIF,cAAJ,EAAoB;AAClB;AACA,eAAK,IAAIG,IAAI,CAAR,EAAWC,IAAIV,gBAAgBK,MAApC,EAA4CI,IAAIC,CAAhD,EAAmDD,GAAnD,EAAwD;AACtD,gBAAIE,QAAQX,gBAAgBS,CAAhB,CAAZ;AACA,gBAAIE,MAAMC,QAAN,IAAkBD,MAAME,WAA5B,EAAyC;AACvC;AACA,kBAAIF,MAAME,WAAN,CAAkBC,QAAtB,EAAgC;AAC9B;AACAV,yBAAS,IAAT;AACA;AACD;AACF;AACF;AACF,SAbD,MAaO;AACL;AACA,cAAIM,KAAIV,gBAAgBK,MAAhB,GAAyB,CAAjC;AACA,cAAIU,iBAAiBf,gBAAgBU,EAAhB,CAArB;;AAEA,cAAIG,cAAcE,eAAeF,WAAjC;;AAEA,cAAIA,eAAe,IAAnB,EAAyB;AACvB,gBAAIA,YAAYC,QAAhB,EAA0B;AACxB;AACAV,uBAAS,IAAT;AACD;AACF;AACF;AACF;;AAED,UAAIR,UAAUoB,kBAAV,IAAgC,IAApC,EAA0C;AACxC;;;;;AAKAZ,iBAAS,KAAKX,kBAAL,CAAwBwB,6BAAxB,CAAsDrB,UAAUoB,kBAAhE,CAAT;AACD;;AAED,aAAOZ,MAAP;AACD;;;sCAEiBc,gB,EAAkBC,U,EAAY;AAC9C,UAAIA,WAAWC,gBAAX,KAAgC,KAApC,EAA2C;AACzC,eAAO,KAAP;AACD,OAFD,MAEO;AACL,YAAID,WAAWtB,IAAX,IAAmB,OAAvB,EAAgC,CAE/B,CAFD,MAEO,IAAIsB,WAAWtB,IAAX,IAAmB,SAAvB,EAAkC,CAExC,CAFM,MAEA,IAAIsB,WAAWtB,IAAX,IAAmB,WAAvB,EAAoC;AACzC,cAAIqB,iBAAiBG,MAAjB,IAA2B,IAA3B,IAAmC,CAACH,iBAAiBG,MAAjB,CAAwBC,SAAhE,EAA2E;AACzE,mBAAO,KAAP;AACD,WAFD,MAEO,IAAIJ,iBAAiBK,aAAjB,KAAmC,KAAvC,EAA8C;AACnD,mBAAO,KAAP;AACD;AACF,SANM,MAMA,IAAIJ,WAAWtB,IAAX,IAAmB,aAAvB,EAAsC;AAC3C,cAAIqB,iBAAiBG,MAAjB,IAA2B,IAA3B,IAAmC,CAACH,iBAAiBG,MAAjB,CAAwBG,YAAhE,EAA8E;AAC5E,mBAAO,KAAP;AACD,WAFD,MAEO,IAAIN,iBAAiBO,gBAAjB,KAAsC,KAA1C,EAAiD;AACtD,mBAAO,KAAP;AACD;AACF;AACF;AACD,aAAO,IAAP;AACD;;;yCAEoBV,c,EAAgB;AACnC,aAAOA,eAAeF,WAAf,CAA2BC,QAAlC;AACD;;;iDAE4BC,c,EAAgBG,gB,EAAkB;AAC7D,UAAI,KAAKQ,kBAAL,CAAwBR,gBAAxB,CAAJ,EAA+C;AAC7C,YAAIJ,WAAWC,eAAeF,WAAf,CAA2BC,QAA1C;AACA,YAAIhB,kBAAkBoB,iBAAiBpB,eAAvC;AACA,eAAO,KAAK6B,WAAL,CAAiBZ,cAAjB,KAAoCD,aAAahB,eAAxD;AACD,OAJD,MAIO;AACL,eAAO,KAAK6B,WAAL,CAAiBZ,cAAjB,CAAP;AACD;AACF;;;uCAEkBG,gB,EAAkB;AACnC,UAAMpB,kBAAkBoB,iBAAiBpB,eAAzC;AACA,aAAOA,mBAAmB,IAAnB,IAA2BA,oBAAoB,EAAtD;AACD;;;gCAEWiB,c,EAAgB;AAC1B,UAAMD,WAAWC,eAAeF,WAAf,CAA2BC,QAA5C;AACA,aAAOA,YAAY,IAAZ,IAAoBA,aAAa,EAAxC;AACD;;;;;;AAGHvB,oBAAoBqC,OAApB,GAA8B,CAC5B,SAD4B,EAE5B,oBAF4B,EAG5B,aAH4B,CAA9B;;kBAMerC,mB","file":"openResponseService.js","sourcesContent":["import ComponentService from '../componentService';\n\nclass OpenResponseService extends ComponentService {\n  constructor($filter, StudentDataService, UtilService) {\n    super($filter, StudentDataService, UtilService);\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('openResponse.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'OpenResponse';\n    component.starterSentence = null;\n    component.isStudentAttachmentEnabled = false;\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    let result = false;\n\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      if (submitRequired) {\n        // completion requires a submission, so check for isSubmit in any component states\n        for (let i = 0, l = componentStates.length; i < l; i++) {\n          let state = componentStates[i];\n          if (state.isSubmit && state.studentData) {\n            // component state is a submission\n            if (state.studentData.response) {\n              // there is a response so the component is completed\n              result = true;\n              break;\n            }\n          }\n        }\n      } else {\n        // get the last component state\n        let l = componentStates.length - 1;\n        let componentState = componentStates[l];\n\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          if (studentData.response) {\n            // there is a response so the component is completed\n            result = true;\n          }\n        }\n      }\n    }\n\n    if (component.completionCriteria != null) {\n      /*\n       * there is a special completion criteria authored in this component\n       * so we will evaluate the completion criteria to see if the student\n       * has completed this component\n       */\n      result = this.StudentDataService.isCompletionCriteriaSatisfied(component.completionCriteria);\n    }\n\n    return result;\n  };\n\n  displayAnnotation(componentContent, annotation) {\n    if (annotation.displayToStudent === false) {\n      return false;\n    } else {\n      if (annotation.type == 'score') {\n\n      } else if (annotation.type == 'comment') {\n\n      } else if (annotation.type == 'autoScore') {\n        if (componentContent.cRater != null && !componentContent.cRater.showScore) {\n          return false;\n        } else if (componentContent.showAutoScore === false) {\n          return false;\n        }\n      } else if (annotation.type == 'autoComment') {\n        if (componentContent.cRater != null && !componentContent.cRater.showFeedback) {\n          return false;\n        } else if (componentContent.showAutoFeedback === false) {\n          return false;\n        }\n      }\n    }\n    return true;\n  }\n\n  getStudentDataString(componentState) {\n    return componentState.studentData.response;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n    if (this.hasStarterSentence(componentContent)) {\n      let response = componentState.studentData.response;\n      let starterSentence = componentContent.starterSentence;\n      return this.hasResponse(componentState) && response !== starterSentence;\n    } else {\n      return this.hasResponse(componentState);\n    }\n  }\n\n  hasStarterSentence(componentContent) {\n    const starterSentence = componentContent.starterSentence;\n    return starterSentence != null && starterSentence !== '';\n  }\n\n  hasResponse(componentState) {\n    const response = componentState.studentData.response;\n    return response != null && response !== '';\n  }\n}\n\nOpenResponseService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default OpenResponseService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/outsideURL/outsideURLService.es6 b/src/main/webapp/wise5/components/outsideURL/outsideURLService.es6
index df08b0219e..5afa2efe49 100644
--- a/src/main/webapp/wise5/components/outsideURL/outsideURLService.es6
+++ b/src/main/webapp/wise5/components/outsideURL/outsideURLService.es6
@@ -1,109 +1,53 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 
-class OutsideURLService extends NodeService {
-  constructor($filter, UtilService) {
-    super();
-    this.$filter = $filter;
-    this.UtilService = UtilService;
-
-    this.$translate = this.$filter('translate');
+class OutsideURLService extends ComponentService {
+  constructor($filter, StudentDataService, UtilService) {
+    super($filter, StudentDataService, UtilService);
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Outside URL"
-   */
   getComponentTypeLabel() {
     return this.$translate('outsideURL.componentTypeLabel');
   }
 
-  /**
-   * Create an OutsideURL component object
-   * @returns a new OutsideURL component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'OutsideURL';
     component.url = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     return component;
   }
 
-  /**
-   * Copies an existing OutsideURL component object
-   * @returns a copied OutsideURL component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.url = componentToCopy.url;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    return component;
-  }
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents) {
     var result = false;
-
     if (nodeEvents != null) {
-
       // loop through all the events
       for (var e = 0; e < nodeEvents.length; e++) {
-
         // get an event
         var event = nodeEvents[e];
-
         if (event != null && event.event === 'nodeEntered') {
           result = true;
           break;
         }
       }
     }
-
     return result;
   };
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
   componentHasWork(component) {
     return false;
   }
 
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
   componentUsesSaveButton() {
     return false;
   }
 
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
   componentUsesSubmitButton() {
     return false;
   }
 }
 
-
 OutsideURLService.$inject = [
   '$filter',
+  'StudentDataService',
   'UtilService'
 ];
 
diff --git a/src/main/webapp/wise5/components/outsideURL/outsideURLService.js b/src/main/webapp/wise5/components/outsideURL/outsideURLService.js
index fbb61cf8fd..9700d2adc3 100644
--- a/src/main/webapp/wise5/components/outsideURL/outsideURLService.js
+++ b/src/main/webapp/wise5/components/outsideURL/outsideURLService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
@@ -18,128 +20,55 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var OutsideURLService = function (_NodeService) {
-  _inherits(OutsideURLService, _NodeService);
+var OutsideURLService = function (_ComponentService) {
+  _inherits(OutsideURLService, _ComponentService);
 
-  function OutsideURLService($filter, UtilService) {
+  function OutsideURLService($filter, StudentDataService, UtilService) {
     _classCallCheck(this, OutsideURLService);
 
-    var _this = _possibleConstructorReturn(this, (OutsideURLService.__proto__ || Object.getPrototypeOf(OutsideURLService)).call(this));
-
-    _this.$filter = $filter;
-    _this.UtilService = UtilService;
-
-    _this.$translate = _this.$filter('translate');
-    return _this;
+    return _possibleConstructorReturn(this, (OutsideURLService.__proto__ || Object.getPrototypeOf(OutsideURLService)).call(this, $filter, StudentDataService, UtilService));
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Outside URL"
-   */
-
-
   _createClass(OutsideURLService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('outsideURL.componentTypeLabel');
     }
-
-    /**
-     * Create an OutsideURL component object
-     * @returns a new OutsideURL component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(OutsideURLService.prototype.__proto__ || Object.getPrototypeOf(OutsideURLService.prototype), 'createComponent', this).call(this);
       component.type = 'OutsideURL';
       component.url = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       return component;
     }
-
-    /**
-     * Copies an existing OutsideURL component object
-     * @returns a copied OutsideURL component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.url = componentToCopy.url;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      return component;
-    }
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @returns whether the component was completed
-     */
-
   }, {
     key: 'isCompleted',
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents) {
       var result = false;
-
       if (nodeEvents != null) {
-
         // loop through all the events
         for (var e = 0; e < nodeEvents.length; e++) {
-
           // get an event
           var event = nodeEvents[e];
-
           if (event != null && event.event === 'nodeEntered') {
             result = true;
             break;
           }
         }
       }
-
       return result;
     }
   }, {
     key: 'componentHasWork',
-
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
     value: function componentHasWork(component) {
       return false;
     }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
   }, {
     key: 'componentUsesSaveButton',
     value: function componentUsesSaveButton() {
       return false;
     }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
   }, {
     key: 'componentUsesSubmitButton',
     value: function componentUsesSubmitButton() {
@@ -148,9 +77,9 @@ var OutsideURLService = function (_NodeService) {
   }]);
 
   return OutsideURLService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
-OutsideURLService.$inject = ['$filter', 'UtilService'];
+OutsideURLService.$inject = ['$filter', 'StudentDataService', 'UtilService'];
 
 exports.default = OutsideURLService;
 //# sourceMappingURL=outsideURLService.js.map
diff --git a/src/main/webapp/wise5/components/outsideURL/outsideURLService.js.map b/src/main/webapp/wise5/components/outsideURL/outsideURLService.js.map
index 3a5f5526f7..e41e9942d1 100644
--- a/src/main/webapp/wise5/components/outsideURL/outsideURLService.js.map
+++ b/src/main/webapp/wise5/components/outsideURL/outsideURLService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["outsideURLService.es6"],"names":["OutsideURLService","$filter","UtilService","$translate","component","id","generateKey","type","url","showSaveButton","showSubmitButton","componentToCopy","createComponent","componentStates","componentEvents","nodeEvents","result","e","length","event","$inject"],"mappings":";;;;;;;;AAAA;;;;;;;;;;;;IAEMA,iB;;;AACJ,6BAAYC,OAAZ,EAAqBC,WAArB,EAAkC;AAAA;;AAAA;;AAEhC,UAAKD,OAAL,GAAeA,OAAf;AACA,UAAKC,WAAL,GAAmBA,WAAnB;;AAEA,UAAKC,UAAL,GAAkB,MAAKF,OAAL,CAAa,WAAb,CAAlB;AALgC;AAMjC;;AAED;;;;;;;;;4CAKwB;AACtB,aAAO,KAAKE,UAAL,CAAgB,+BAAhB,CAAP;AACD;;AAED;;;;;;;sCAIkB;AAChB,UAAIC,YAAY,EAAhB;AACAA,gBAAUC,EAAV,GAAe,KAAKH,WAAL,CAAiBI,WAAjB,EAAf;AACAF,gBAAUG,IAAV,GAAiB,YAAjB;AACAH,gBAAUI,GAAV,GAAgB,EAAhB;AACAJ,gBAAUK,cAAV,GAA2B,KAA3B;AACAL,gBAAUM,gBAAV,GAA6B,KAA7B;AACA,aAAON,SAAP;AACD;;AAED;;;;;;;kCAIcO,e,EAAiB;AAC7B,UAAIP,YAAY,KAAKQ,eAAL,EAAhB;AACAR,gBAAUI,GAAV,GAAgBG,gBAAgBH,GAAhC;AACAJ,gBAAUK,cAAV,GAA2BE,gBAAgBF,cAA3C;AACAL,gBAAUM,gBAAV,GAA6BC,gBAAgBD,gBAA7C;AACA,aAAON,SAAP;AACD;;AAED;;;;;;;;;;;gCAQYA,S,EAAWS,e,EAAiBC,e,EAAiBC,U,EAAY;AACnE,UAAIC,SAAS,KAAb;;AAEA,UAAID,cAAc,IAAlB,EAAwB;;AAEtB;AACA,aAAK,IAAIE,IAAI,CAAb,EAAgBA,IAAIF,WAAWG,MAA/B,EAAuCD,GAAvC,EAA4C;;AAE1C;AACA,cAAIE,QAAQJ,WAAWE,CAAX,CAAZ;;AAEA,cAAIE,SAAS,IAAT,IAAiBA,MAAMA,KAAN,KAAgB,aAArC,EAAoD;AAClDH,qBAAS,IAAT;AACA;AACD;AACF;AACF;;AAED,aAAOA,MAAP;AACD;;;;;AAED;;;;;;;qCAOiBZ,S,EAAW;AAC1B,aAAO,KAAP;AACD;;AAED;;;;;;;8CAI0B;AACxB,aAAO,KAAP;AACD;;AAED;;;;;;;gDAI4B;AAC1B,aAAO,KAAP;AACD;;;;;;AAIHJ,kBAAkBoB,OAAlB,GAA4B,CAC1B,SAD0B,EAE1B,aAF0B,CAA5B;;kBAKepB,iB","file":"outsideURLService.js","sourcesContent":["import NodeService from '../../services/nodeService';\n\nclass OutsideURLService extends NodeService {\n  constructor($filter, UtilService) {\n    super();\n    this.$filter = $filter;\n    this.UtilService = UtilService;\n\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Outside URL\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('outsideURL.componentTypeLabel');\n  }\n\n  /**\n   * Create an OutsideURL component object\n   * @returns a new OutsideURL component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'OutsideURL';\n    component.url = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    return component;\n  }\n\n  /**\n   * Copies an existing OutsideURL component object\n   * @returns a copied OutsideURL component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.url = componentToCopy.url;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    return component;\n  }\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents) {\n    var result = false;\n\n    if (nodeEvents != null) {\n\n      // loop through all the events\n      for (var e = 0; e < nodeEvents.length; e++) {\n\n        // get an event\n        var event = nodeEvents[e];\n\n        if (event != null && event.event === 'nodeEntered') {\n          result = true;\n          break;\n        }\n      }\n    }\n\n    return result;\n  };\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return false;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return false;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return false;\n  }\n}\n\n\nOutsideURLService.$inject = [\n  '$filter',\n  'UtilService'\n];\n\nexport default OutsideURLService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["outsideURLService.es6"],"names":["OutsideURLService","$filter","StudentDataService","UtilService","$translate","component","type","url","componentStates","componentEvents","nodeEvents","result","e","length","event","$inject"],"mappings":";;;;;;;;;;AAAA;;;;;;;;;;;;IAEMA,iB;;;AACJ,6BAAYC,OAAZ,EAAqBC,kBAArB,EAAyCC,WAAzC,EAAsD;AAAA;;AAAA,iIAC9CF,OAD8C,EACrCC,kBADqC,EACjBC,WADiB;AAErD;;;;4CAEuB;AACtB,aAAO,KAAKC,UAAL,CAAgB,+BAAhB,CAAP;AACD;;;sCAEiB;AAChB,UAAMC,iJAAN;AACAA,gBAAUC,IAAV,GAAiB,YAAjB;AACAD,gBAAUE,GAAV,GAAgB,EAAhB;AACA,aAAOF,SAAP;AACD;;;gCAEWA,S,EAAWG,e,EAAiBC,e,EAAiBC,U,EAAY;AACnE,UAAIC,SAAS,KAAb;AACA,UAAID,cAAc,IAAlB,EAAwB;AACtB;AACA,aAAK,IAAIE,IAAI,CAAb,EAAgBA,IAAIF,WAAWG,MAA/B,EAAuCD,GAAvC,EAA4C;AAC1C;AACA,cAAIE,QAAQJ,WAAWE,CAAX,CAAZ;AACA,cAAIE,SAAS,IAAT,IAAiBA,MAAMA,KAAN,KAAgB,aAArC,EAAoD;AAClDH,qBAAS,IAAT;AACA;AACD;AACF;AACF;AACD,aAAOA,MAAP;AACD;;;qCAEgBN,S,EAAW;AAC1B,aAAO,KAAP;AACD;;;8CAEyB;AACxB,aAAO,KAAP;AACD;;;gDAE2B;AAC1B,aAAO,KAAP;AACD;;;;;;AAGHL,kBAAkBe,OAAlB,GAA4B,CAC1B,SAD0B,EAE1B,oBAF0B,EAG1B,aAH0B,CAA5B;;kBAMef,iB","file":"outsideURLService.js","sourcesContent":["import ComponentService from '../componentService';\n\nclass OutsideURLService extends ComponentService {\n  constructor($filter, StudentDataService, UtilService) {\n    super($filter, StudentDataService, UtilService);\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('outsideURL.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'OutsideURL';\n    component.url = '';\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents) {\n    var result = false;\n    if (nodeEvents != null) {\n      // loop through all the events\n      for (var e = 0; e < nodeEvents.length; e++) {\n        // get an event\n        var event = nodeEvents[e];\n        if (event != null && event.event === 'nodeEntered') {\n          result = true;\n          break;\n        }\n      }\n    }\n    return result;\n  };\n\n  componentHasWork(component) {\n    return false;\n  }\n\n  componentUsesSaveButton() {\n    return false;\n  }\n\n  componentUsesSubmitButton() {\n    return false;\n  }\n}\n\nOutsideURLService.$inject = [\n  '$filter',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default OutsideURLService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/components/table/tableService.es6 b/src/main/webapp/wise5/components/table/tableService.es6
index 046e3ef6f1..0b753bc5cc 100644
--- a/src/main/webapp/wise5/components/table/tableService.es6
+++ b/src/main/webapp/wise5/components/table/tableService.es6
@@ -1,42 +1,25 @@
-import NodeService from '../../services/nodeService';
+import ComponentService from '../componentService';
 import html2canvas from 'html2canvas';
 
-class TableService extends NodeService {
+class TableService extends ComponentService {
 
   constructor($filter,
       $q,
       StudentAssetService,
       StudentDataService,
       UtilService) {
-    super();
-    this.$filter = $filter;
+    super($filter, StudentDataService, UtilService);
     this.$q = $q;
     this.StudentAssetService = StudentAssetService;
-    this.StudentDataService = StudentDataService;
-    this.UtilService = UtilService;
-    this.$translate = this.$filter('translate');
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Table"
-   */
   getComponentTypeLabel() {
     return this.$translate('table.componentTypeLabel');
   }
 
-  /**
-   * Create an Table component object
-   * @returns a new Table component object
-   */
   createComponent() {
-    var component = {};
-    component.id = this.UtilService.generateKey();
+    const component = super.createComponent();
     component.type = 'Table';
-    component.prompt = '';
-    component.showSaveButton = false;
-    component.showSubmitButton = false;
     component.globalCellSize = 10;
     component.numRows = 3;
     component.numColumns = 3;
@@ -97,65 +80,6 @@ class TableService extends NodeService {
     return component;
   }
 
-  /**
-   * Copies an existing Table component object
-   * @returns a copied Table component object
-   */
-  copyComponent(componentToCopy) {
-    var component = this.createComponent();
-    component.prompt = componentToCopy.prompt;
-    component.showSaveButton = componentToCopy.showSaveButton;
-    component.showSubmitButton = componentToCopy.showSubmitButton;
-    component.globalCellSize = componentToCopy.globalCellSize;
-    component.numRows = componentToCopy.numRows;
-    component.numColumns = componentToCopy.numColumns;
-    component.tableData = componentToCopy.tableData;
-    return component;
-  }
-
-  /**
-   * Populate a component state with the data from another component state
-   * @param componentStateFromOtherComponent the component state to obtain the data from
-   * @return a new component state that contains the student data from the other
-   * component state
-   */
-  populateComponentState(componentStateFromOtherComponent) {
-    var componentState = null;
-
-    if (componentStateFromOtherComponent != null) {
-
-      // create an empty component state
-      componentState = this.StudentDataService.createComponentState();
-
-      // get the component type of the other component state
-      var otherComponentType = componentStateFromOtherComponent.componentType;
-
-      if (otherComponentType === 'Table') {
-        // the other component is an Table component
-
-        // get the student data from the other component state
-        var studentData = componentStateFromOtherComponent.studentData;
-
-        // create a copy of the student data
-        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-        // set the student data into the new component state
-        componentState.studentData = studentDataCopy;
-      }
-    }
-
-    return componentState;
-  };
-
-  /**
-   * Check if the component was completed
-   * @param component the component object
-   * @param componentStates the component states for the specific component
-   * @param componentEvents the events for the specific component
-   * @param nodeEvents the events for the parent node of the component
-   * @param node parent node of the component
-   * @returns whether the component was completed
-   */
   isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
     if (!this.componentHasEditableCells(component)) {
       /*
@@ -226,42 +150,6 @@ class TableService extends NodeService {
     return false;
   }
 
-  /**
-   * Whether this component generates student work
-   * @param component (optional) the component object. if the component object
-   * is not provided, we will use the default value of whether the
-   * component type usually has work.
-   * @return whether this component generates student work
-   */
-  componentHasWork(component) {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a save button
-   * @return whether this component uses a save button
-   */
-  componentUsesSaveButton() {
-    return true;
-  }
-
-  /**
-   * Whether this component uses a submit button
-   * @return whether this component uses a submit button
-   */
-  componentUsesSubmitButton() {
-    return true;
-  }
-
-  /**
-   * Check if the component state has student work. Sometimes a component
-   * state may be created if the student visits a component but doesn't
-   * actually perform any work. This is where we will check if the student
-   * actually performed any work.
-   * @param componentState the component state object
-   * @param componentContent the component content
-   * @return whether the component state has any work
-   */
   componentStateHasStudentWork(componentState, componentContent) {
 
     if (componentState != null) {
diff --git a/src/main/webapp/wise5/components/table/tableService.js b/src/main/webapp/wise5/components/table/tableService.js
index f658e7b5ca..f4bd1029a9 100644
--- a/src/main/webapp/wise5/components/table/tableService.js
+++ b/src/main/webapp/wise5/components/table/tableService.js
@@ -6,9 +6,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _nodeService = require('../../services/nodeService');
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
 
-var _nodeService2 = _interopRequireDefault(_nodeService);
+var _componentService = require('../componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
 
 var _html2canvas = require('html2canvas');
 
@@ -22,50 +24,29 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var TableService = function (_NodeService) {
-  _inherits(TableService, _NodeService);
+var TableService = function (_ComponentService) {
+  _inherits(TableService, _ComponentService);
 
   function TableService($filter, $q, StudentAssetService, StudentDataService, UtilService) {
     _classCallCheck(this, TableService);
 
-    var _this = _possibleConstructorReturn(this, (TableService.__proto__ || Object.getPrototypeOf(TableService)).call(this));
+    var _this = _possibleConstructorReturn(this, (TableService.__proto__ || Object.getPrototypeOf(TableService)).call(this, $filter, StudentDataService, UtilService));
 
-    _this.$filter = $filter;
     _this.$q = $q;
     _this.StudentAssetService = StudentAssetService;
-    _this.StudentDataService = StudentDataService;
-    _this.UtilService = UtilService;
-    _this.$translate = _this.$filter('translate');
     return _this;
   }
 
-  /**
-   * Get the component type label
-   * example
-   * "Table"
-   */
-
-
   _createClass(TableService, [{
     key: 'getComponentTypeLabel',
     value: function getComponentTypeLabel() {
       return this.$translate('table.componentTypeLabel');
     }
-
-    /**
-     * Create an Table component object
-     * @returns a new Table component object
-     */
-
   }, {
     key: 'createComponent',
     value: function createComponent() {
-      var component = {};
-      component.id = this.UtilService.generateKey();
+      var component = _get(TableService.prototype.__proto__ || Object.getPrototypeOf(TableService.prototype), 'createComponent', this).call(this);
       component.type = 'Table';
-      component.prompt = '';
-      component.showSaveButton = false;
-      component.showSubmitButton = false;
       component.globalCellSize = 10;
       component.numRows = 3;
       component.numColumns = 3;
@@ -109,75 +90,8 @@ var TableService = function (_NodeService) {
 
       return component;
     }
-
-    /**
-     * Copies an existing Table component object
-     * @returns a copied Table component object
-     */
-
-  }, {
-    key: 'copyComponent',
-    value: function copyComponent(componentToCopy) {
-      var component = this.createComponent();
-      component.prompt = componentToCopy.prompt;
-      component.showSaveButton = componentToCopy.showSaveButton;
-      component.showSubmitButton = componentToCopy.showSubmitButton;
-      component.globalCellSize = componentToCopy.globalCellSize;
-      component.numRows = componentToCopy.numRows;
-      component.numColumns = componentToCopy.numColumns;
-      component.tableData = componentToCopy.tableData;
-      return component;
-    }
-
-    /**
-     * Populate a component state with the data from another component state
-     * @param componentStateFromOtherComponent the component state to obtain the data from
-     * @return a new component state that contains the student data from the other
-     * component state
-     */
-
-  }, {
-    key: 'populateComponentState',
-    value: function populateComponentState(componentStateFromOtherComponent) {
-      var componentState = null;
-
-      if (componentStateFromOtherComponent != null) {
-
-        // create an empty component state
-        componentState = this.StudentDataService.createComponentState();
-
-        // get the component type of the other component state
-        var otherComponentType = componentStateFromOtherComponent.componentType;
-
-        if (otherComponentType === 'Table') {
-          // the other component is an Table component
-
-          // get the student data from the other component state
-          var studentData = componentStateFromOtherComponent.studentData;
-
-          // create a copy of the student data
-          var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);
-
-          // set the student data into the new component state
-          componentState.studentData = studentDataCopy;
-        }
-      }
-
-      return componentState;
-    }
   }, {
     key: 'isCompleted',
-
-
-    /**
-     * Check if the component was completed
-     * @param component the component object
-     * @param componentStates the component states for the specific component
-     * @param componentEvents the events for the specific component
-     * @param nodeEvents the events for the parent node of the component
-     * @param node parent node of the component
-     * @returns whether the component was completed
-     */
     value: function isCompleted(component, componentStates, componentEvents, nodeEvents, node) {
       if (!this.componentHasEditableCells(component)) {
         /*
@@ -250,53 +164,6 @@ var TableService = function (_NodeService) {
 
       return false;
     }
-
-    /**
-     * Whether this component generates student work
-     * @param component (optional) the component object. if the component object
-     * is not provided, we will use the default value of whether the
-     * component type usually has work.
-     * @return whether this component generates student work
-     */
-
-  }, {
-    key: 'componentHasWork',
-    value: function componentHasWork(component) {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a save button
-     * @return whether this component uses a save button
-     */
-
-  }, {
-    key: 'componentUsesSaveButton',
-    value: function componentUsesSaveButton() {
-      return true;
-    }
-
-    /**
-     * Whether this component uses a submit button
-     * @return whether this component uses a submit button
-     */
-
-  }, {
-    key: 'componentUsesSubmitButton',
-    value: function componentUsesSubmitButton() {
-      return true;
-    }
-
-    /**
-     * Check if the component state has student work. Sometimes a component
-     * state may be created if the student visits a component but doesn't
-     * actually perform any work. This is where we will check if the student
-     * actually performed any work.
-     * @param componentState the component state object
-     * @param componentContent the component content
-     * @return whether the component state has any work
-     */
-
   }, {
     key: 'componentStateHasStudentWork',
     value: function componentStateHasStudentWork(componentState, componentContent) {
@@ -420,7 +287,7 @@ var TableService = function (_NodeService) {
   }]);
 
   return TableService;
-}(_nodeService2.default);
+}(_componentService2.default);
 
 TableService.$inject = ['$filter', '$q', 'StudentAssetService', 'StudentDataService', 'UtilService'];
 
diff --git a/src/main/webapp/wise5/components/table/tableService.js.map b/src/main/webapp/wise5/components/table/tableService.js.map
index 83d3f42d1a..6754fd9136 100644
--- a/src/main/webapp/wise5/components/table/tableService.js.map
+++ b/src/main/webapp/wise5/components/table/tableService.js.map
@@ -1 +1 @@
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NodeService from '../../services/nodeService';\nimport html2canvas from 'html2canvas';\n\nclass TableService extends NodeService {\n\n  constructor($filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super();\n    this.$filter = $filter;\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n    this.StudentDataService = StudentDataService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Get the component type label\n   * example\n   * \"Table\"\n   */\n  getComponentTypeLabel() {\n    return this.$translate('table.componentTypeLabel');\n  }\n\n  /**\n   * Create an Table component object\n   * @returns a new Table component object\n   */\n  createComponent() {\n    var component = {};\n    component.id = this.UtilService.generateKey();\n    component.type = 'Table';\n    component.prompt = '';\n    component.showSaveButton = false;\n    component.showSubmitButton = false;\n    component.globalCellSize = 10;\n    component.numRows = 3;\n    component.numColumns = 3;\n    component.tableData = [\n      [\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        }\n      ],\n      [\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        }\n      ],\n      [\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        }\n      ]\n    ];\n\n    return component;\n  }\n\n  /**\n   * Copies an existing Table component object\n   * @returns a copied Table component object\n   */\n  copyComponent(componentToCopy) {\n    var component = this.createComponent();\n    component.prompt = componentToCopy.prompt;\n    component.showSaveButton = componentToCopy.showSaveButton;\n    component.showSubmitButton = componentToCopy.showSubmitButton;\n    component.globalCellSize = componentToCopy.globalCellSize;\n    component.numRows = componentToCopy.numRows;\n    component.numColumns = componentToCopy.numColumns;\n    component.tableData = componentToCopy.tableData;\n    return component;\n  }\n\n  /**\n   * Populate a component state with the data from another component state\n   * @param componentStateFromOtherComponent the component state to obtain the data from\n   * @return a new component state that contains the student data from the other\n   * component state\n   */\n  populateComponentState(componentStateFromOtherComponent) {\n    var componentState = null;\n\n    if (componentStateFromOtherComponent != null) {\n\n      // create an empty component state\n      componentState = this.StudentDataService.createComponentState();\n\n      // get the component type of the other component state\n      var otherComponentType = componentStateFromOtherComponent.componentType;\n\n      if (otherComponentType === 'Table') {\n        // the other component is an Table component\n\n        // get the student data from the other component state\n        var studentData = componentStateFromOtherComponent.studentData;\n\n        // create a copy of the student data\n        var studentDataCopy = this.UtilService.makeCopyOfJSONObject(studentData);\n\n        // set the student data into the new component state\n        componentState.studentData = studentDataCopy;\n      }\n    }\n\n    return componentState;\n  };\n\n  /**\n   * Check if the component was completed\n   * @param component the component object\n   * @param componentStates the component states for the specific component\n   * @param componentEvents the events for the specific component\n   * @param nodeEvents the events for the parent node of the component\n   * @param node parent node of the component\n   * @returns whether the component was completed\n   */\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    if (!this.componentHasEditableCells(component)) {\n      /*\n       * The component does not have any editable cells so we will say\n       * it is completed.\n       */\n      return true;\n    }\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      // loop through all the component states\n      for (let c = 0, l = componentStates.length; c < l; c++) {\n\n        // the component state\n        let componentState = componentStates[c];\n\n        // get the student data from the component state\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          let tableData = studentData.tableData;\n\n          if (tableData != null) {\n            // there is a table data so the component has saved work\n            // TODO: check for actual student data from the table (compare to starting state)\n            if (submitRequired) {\n              // completion requires a submission, so check for isSubmit\n              if (componentState.isSubmit) {\n                return true;\n              }\n            } else {\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  };\n\n  /**\n   * Check if a table component has any editable cells.\n   * @param component The component content.\n   * @return Whether the component has any editable cells.\n   */\n  componentHasEditableCells(component) {\n    if (component != null) {\n      let tableData = component.tableData;\n      if (tableData != null) {\n        for (let r = 0; r < tableData.length; r++) {\n          let row = tableData[r];\n          if (row != null) {\n            for (let c = 0; c < row.length; c++) {\n              let cell = row[c];\n              if (cell != null) {\n                if (cell.editable === true) {\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Whether this component generates student work\n   * @param component (optional) the component object. if the component object\n   * is not provided, we will use the default value of whether the\n   * component type usually has work.\n   * @return whether this component generates student work\n   */\n  componentHasWork(component) {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a save button\n   * @return whether this component uses a save button\n   */\n  componentUsesSaveButton() {\n    return true;\n  }\n\n  /**\n   * Whether this component uses a submit button\n   * @return whether this component uses a submit button\n   */\n  componentUsesSubmitButton() {\n    return true;\n  }\n\n  /**\n   * Check if the component state has student work. Sometimes a component\n   * state may be created if the student visits a component but doesn't\n   * actually perform any work. This is where we will check if the student\n   * actually performed any work.\n   * @param componentState the component state object\n   * @param componentContent the component content\n   * @return whether the component state has any work\n   */\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the table from the student data\n        let studentTableData = studentData.tableData;\n\n        // get the table from the component content\n        let componentContentTableData = componentContent.tableData;\n\n        if (studentTableData != null) {\n\n          let studentRows = studentTableData;\n\n          // loop through the student rows\n          for (let r = 0; r < studentRows.length; r++) {\n            let studentRow = studentRows[r];\n\n            if (studentRow != null) {\n\n              // loop through the student columns\n              for (let c = 0; c < studentRow.length; c++) {\n\n                // get cell from the student\n                let studentCell = this.getTableDataCellValue(r, c, studentTableData);\n\n                // get a cell from the component content\n                let componentContentCell = this.getTableDataCellValue(r, c, componentContentTableData);\n\n                if (studentCell !== componentContentCell) {\n                  /*\n                   * the cell values are not the same which means\n                   * the student has changed the table\n                   */\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Get the value of a cell in the table\n   * @param x the x coordinate\n   * @param y the y coordinate\n   * @param table (optional) table data to get the value from. this is used\n   * when we want to look up the value in the default authored table\n   * @returns the cell value (text or a number)\n   */\n  getTableDataCellValue(x, y, table) {\n\n    var cellValue = null;\n\n    if (table != null) {\n\n      // get the row we want\n      var row = table[y];\n\n      if (row != null) {\n\n        // get the cell we want\n        var cell = row[x];\n\n        if (cell != null) {\n\n          // set the value into the cell\n          cellValue = cell.text;\n        }\n      }\n    }\n\n    return cellValue;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let tableElement = angular.element('#table_' + componentState.nodeId + '_' + componentState.componentId);\n    if (tableElement != null && tableElement.length > 0) {\n      tableElement = tableElement[0];\n      // convert the table element to a canvas element\n      html2canvas(tableElement).then((canvas) => {\n        // get the canvas as a base64 string\n        let img_b64 = canvas.toDataURL('image/png');\n\n        // get the image object\n        let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n        // add the image to the student assets\n        this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n          deferred.resolve(asset);\n        });\n      });\n    }\n    return deferred.promise;\n  }\n}\n\nTableService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default TableService;\n"]}
\ No newline at end of file
+{"version":3,"sources":["tableService.es6"],"names":["TableService","$filter","$q","StudentAssetService","StudentDataService","UtilService","$translate","component","type","globalCellSize","numRows","numColumns","tableData","componentStates","componentEvents","nodeEvents","node","componentHasEditableCells","length","submitRequired","showSubmitButton","showSaveButton","c","l","componentState","studentData","isSubmit","r","row","cell","editable","componentContent","studentTableData","componentContentTableData","studentRows","studentRow","studentCell","getTableDataCellValue","componentContentCell","x","y","table","cellValue","text","deferred","defer","tableElement","angular","element","nodeId","componentId","then","canvas","img_b64","toDataURL","imageObject","getImageObjectFromBase64String","uploadAsset","asset","resolve","promise","$inject"],"mappings":";;;;;;;;;;AAAA;;;;AACA;;;;;;;;;;;;IAEMA,Y;;;AAEJ,wBAAYC,OAAZ,EACIC,EADJ,EAEIC,mBAFJ,EAGIC,kBAHJ,EAIIC,WAJJ,EAIiB;AAAA;;AAAA,4HACTJ,OADS,EACAG,kBADA,EACoBC,WADpB;;AAEf,UAAKH,EAAL,GAAUA,EAAV;AACA,UAAKC,mBAAL,GAA2BA,mBAA3B;AAHe;AAIhB;;;;4CAEuB;AACtB,aAAO,KAAKG,UAAL,CAAgB,0BAAhB,CAAP;AACD;;;sCAEiB;AAChB,UAAMC,uIAAN;AACAA,gBAAUC,IAAV,GAAiB,OAAjB;AACAD,gBAAUE,cAAV,GAA2B,EAA3B;AACAF,gBAAUG,OAAV,GAAoB,CAApB;AACAH,gBAAUI,UAAV,GAAuB,CAAvB;AACAJ,gBAAUK,SAAV,GAAsB,CACpB,CACE;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OADF,EAME;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OANF,EAWE;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OAXF,CADoB,EAkBpB,CACE;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OADF,EAME;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OANF,EAWE;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OAXF,CAlBoB,EAmCpB,CACE;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OADF,EAME;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OANF,EAWE;AACE,gBAAQ,EADV;AAEE,oBAAY,IAFd;AAGE,gBAAQ;AAHV,OAXF,CAnCoB,CAAtB;;AAsDA,aAAOL,SAAP;AACD;;;gCAEWA,S,EAAWM,e,EAAiBC,e,EAAiBC,U,EAAYC,I,EAAM;AACzE,UAAI,CAAC,KAAKC,yBAAL,CAA+BV,SAA/B,CAAL,EAAgD;AAC9C;;;;AAIA,eAAO,IAAP;AACD;AACD,UAAIM,mBAAmBA,gBAAgBK,MAAvC,EAA+C;AAC7C,YAAIC,iBAAiBH,KAAKI,gBAAL,IAA0Bb,UAAUa,gBAAV,IAA8B,CAACJ,KAAKK,cAAnF;;AAEA;AACA,aAAK,IAAIC,IAAI,CAAR,EAAWC,IAAIV,gBAAgBK,MAApC,EAA4CI,IAAIC,CAAhD,EAAmDD,GAAnD,EAAwD;;AAEtD;AACA,cAAIE,iBAAiBX,gBAAgBS,CAAhB,CAArB;;AAEA;AACA,cAAIG,cAAcD,eAAeC,WAAjC;;AAEA,cAAIA,eAAe,IAAnB,EAAyB;AACvB,gBAAIb,YAAYa,YAAYb,SAA5B;;AAEA,gBAAIA,aAAa,IAAjB,EAAuB;AACrB;AACA;AACA,kBAAIO,cAAJ,EAAoB;AAClB;AACA,oBAAIK,eAAeE,QAAnB,EAA6B;AAC3B,yBAAO,IAAP;AACD;AACF,eALD,MAKO;AACL,uBAAO,IAAP;AACD;AACF;AACF;AACF;AACF;;AAED,aAAO,KAAP;AACD;;;;;AAED;;;;;8CAK0BnB,S,EAAW;AACnC,UAAIA,aAAa,IAAjB,EAAuB;AACrB,YAAIK,YAAYL,UAAUK,SAA1B;AACA,YAAIA,aAAa,IAAjB,EAAuB;AACrB,eAAK,IAAIe,IAAI,CAAb,EAAgBA,IAAIf,UAAUM,MAA9B,EAAsCS,GAAtC,EAA2C;AACzC,gBAAIC,MAAMhB,UAAUe,CAAV,CAAV;AACA,gBAAIC,OAAO,IAAX,EAAiB;AACf,mBAAK,IAAIN,IAAI,CAAb,EAAgBA,IAAIM,IAAIV,MAAxB,EAAgCI,GAAhC,EAAqC;AACnC,oBAAIO,OAAOD,IAAIN,CAAJ,CAAX;AACA,oBAAIO,QAAQ,IAAZ,EAAkB;AAChB,sBAAIA,KAAKC,QAAL,KAAkB,IAAtB,EAA4B;AAC1B,2BAAO,IAAP;AACD;AACF;AACF;AACF;AACF;AACF;AACF;;AAED,aAAO,KAAP;AACD;;;iDAE4BN,c,EAAgBO,gB,EAAkB;;AAE7D,UAAIP,kBAAkB,IAAtB,EAA4B;;AAE1B,YAAIC,cAAcD,eAAeC,WAAjC;;AAEA,YAAIA,eAAe,IAAnB,EAAyB;;AAEvB;AACA,cAAIO,mBAAmBP,YAAYb,SAAnC;;AAEA;AACA,cAAIqB,4BAA4BF,iBAAiBnB,SAAjD;;AAEA,cAAIoB,oBAAoB,IAAxB,EAA8B;;AAE5B,gBAAIE,cAAcF,gBAAlB;;AAEA;AACA,iBAAK,IAAIL,IAAI,CAAb,EAAgBA,IAAIO,YAAYhB,MAAhC,EAAwCS,GAAxC,EAA6C;AAC3C,kBAAIQ,aAAaD,YAAYP,CAAZ,CAAjB;;AAEA,kBAAIQ,cAAc,IAAlB,EAAwB;;AAEtB;AACA,qBAAK,IAAIb,IAAI,CAAb,EAAgBA,IAAIa,WAAWjB,MAA/B,EAAuCI,GAAvC,EAA4C;;AAE1C;AACA,sBAAIc,cAAc,KAAKC,qBAAL,CAA2BV,CAA3B,EAA8BL,CAA9B,EAAiCU,gBAAjC,CAAlB;;AAEA;AACA,sBAAIM,uBAAuB,KAAKD,qBAAL,CAA2BV,CAA3B,EAA8BL,CAA9B,EAAiCW,yBAAjC,CAA3B;;AAEA,sBAAIG,gBAAgBE,oBAApB,EAA0C;AACxC;;;;AAIA,2BAAO,IAAP;AACD;AACF;AACF;AACF;AACF;AACF;AACF;;AAED,aAAO,KAAP;AACD;;AAED;;;;;;;;;;;0CAQsBC,C,EAAGC,C,EAAGC,K,EAAO;;AAEjC,UAAIC,YAAY,IAAhB;;AAEA,UAAID,SAAS,IAAb,EAAmB;;AAEjB;AACA,YAAIb,MAAMa,MAAMD,CAAN,CAAV;;AAEA,YAAIZ,OAAO,IAAX,EAAiB;;AAEf;AACA,cAAIC,OAAOD,IAAIW,CAAJ,CAAX;;AAEA,cAAIV,QAAQ,IAAZ,EAAkB;;AAEhB;AACAa,wBAAYb,KAAKc,IAAjB;AACD;AACF;AACF;;AAED,aAAOD,SAAP;AACD;;AAED;;;;;;;;;4DAMwClB,c,EAAgB;AAAA;;AACtD,UAAIoB,WAAW,KAAK1C,EAAL,CAAQ2C,KAAR,EAAf;AACA,UAAIC,eAAeC,QAAQC,OAAR,CAAgB,YAAYxB,eAAeyB,MAA3B,GAAoC,GAApC,GAA0CzB,eAAe0B,WAAzE,CAAnB;AACA,UAAIJ,gBAAgB,IAAhB,IAAwBA,aAAa5B,MAAb,GAAsB,CAAlD,EAAqD;AACnD4B,uBAAeA,aAAa,CAAb,CAAf;AACA;AACA,mCAAYA,YAAZ,EAA0BK,IAA1B,CAA+B,UAACC,MAAD,EAAY;AACzC;AACA,cAAIC,UAAUD,OAAOE,SAAP,CAAiB,WAAjB,CAAd;;AAEA;AACA,cAAIC,cAAc,OAAKlD,WAAL,CAAiBmD,8BAAjB,CAAgDH,OAAhD,CAAlB;;AAEA;AACA,iBAAKlD,mBAAL,CAAyBsD,WAAzB,CAAqCF,WAArC,EAAkDJ,IAAlD,CAAuD,UAACO,KAAD,EAAW;AAChEd,qBAASe,OAAT,CAAiBD,KAAjB;AACD,WAFD;AAGD,SAXD;AAYD;AACD,aAAOd,SAASgB,OAAhB;AACD;;;;;;AAGH5D,aAAa6D,OAAb,GAAuB,CACrB,SADqB,EAErB,IAFqB,EAGrB,qBAHqB,EAIrB,oBAJqB,EAKrB,aALqB,CAAvB;;kBAQe7D,Y","file":"tableService.js","sourcesContent":["import ComponentService from '../componentService';\nimport html2canvas from 'html2canvas';\n\nclass TableService extends ComponentService {\n\n  constructor($filter,\n      $q,\n      StudentAssetService,\n      StudentDataService,\n      UtilService) {\n    super($filter, StudentDataService, UtilService);\n    this.$q = $q;\n    this.StudentAssetService = StudentAssetService;\n  }\n\n  getComponentTypeLabel() {\n    return this.$translate('table.componentTypeLabel');\n  }\n\n  createComponent() {\n    const component = super.createComponent();\n    component.type = 'Table';\n    component.globalCellSize = 10;\n    component.numRows = 3;\n    component.numColumns = 3;\n    component.tableData = [\n      [\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        }\n      ],\n      [\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        }\n      ],\n      [\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        },\n        {\n          'text': '',\n          'editable': true,\n          'size': null\n        }\n      ]\n    ];\n\n    return component;\n  }\n\n  isCompleted(component, componentStates, componentEvents, nodeEvents, node) {\n    if (!this.componentHasEditableCells(component)) {\n      /*\n       * The component does not have any editable cells so we will say\n       * it is completed.\n       */\n      return true;\n    }\n    if (componentStates && componentStates.length) {\n      let submitRequired = node.showSubmitButton || (component.showSubmitButton && !node.showSaveButton);\n\n      // loop through all the component states\n      for (let c = 0, l = componentStates.length; c < l; c++) {\n\n        // the component state\n        let componentState = componentStates[c];\n\n        // get the student data from the component state\n        let studentData = componentState.studentData;\n\n        if (studentData != null) {\n          let tableData = studentData.tableData;\n\n          if (tableData != null) {\n            // there is a table data so the component has saved work\n            // TODO: check for actual student data from the table (compare to starting state)\n            if (submitRequired) {\n              // completion requires a submission, so check for isSubmit\n              if (componentState.isSubmit) {\n                return true;\n              }\n            } else {\n              return true;\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  };\n\n  /**\n   * Check if a table component has any editable cells.\n   * @param component The component content.\n   * @return Whether the component has any editable cells.\n   */\n  componentHasEditableCells(component) {\n    if (component != null) {\n      let tableData = component.tableData;\n      if (tableData != null) {\n        for (let r = 0; r < tableData.length; r++) {\n          let row = tableData[r];\n          if (row != null) {\n            for (let c = 0; c < row.length; c++) {\n              let cell = row[c];\n              if (cell != null) {\n                if (cell.editable === true) {\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  componentStateHasStudentWork(componentState, componentContent) {\n\n    if (componentState != null) {\n\n      let studentData = componentState.studentData;\n\n      if (studentData != null) {\n\n        // get the table from the student data\n        let studentTableData = studentData.tableData;\n\n        // get the table from the component content\n        let componentContentTableData = componentContent.tableData;\n\n        if (studentTableData != null) {\n\n          let studentRows = studentTableData;\n\n          // loop through the student rows\n          for (let r = 0; r < studentRows.length; r++) {\n            let studentRow = studentRows[r];\n\n            if (studentRow != null) {\n\n              // loop through the student columns\n              for (let c = 0; c < studentRow.length; c++) {\n\n                // get cell from the student\n                let studentCell = this.getTableDataCellValue(r, c, studentTableData);\n\n                // get a cell from the component content\n                let componentContentCell = this.getTableDataCellValue(r, c, componentContentTableData);\n\n                if (studentCell !== componentContentCell) {\n                  /*\n                   * the cell values are not the same which means\n                   * the student has changed the table\n                   */\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Get the value of a cell in the table\n   * @param x the x coordinate\n   * @param y the y coordinate\n   * @param table (optional) table data to get the value from. this is used\n   * when we want to look up the value in the default authored table\n   * @returns the cell value (text or a number)\n   */\n  getTableDataCellValue(x, y, table) {\n\n    var cellValue = null;\n\n    if (table != null) {\n\n      // get the row we want\n      var row = table[y];\n\n      if (row != null) {\n\n        // get the cell we want\n        var cell = row[x];\n\n        if (cell != null) {\n\n          // set the value into the cell\n          cellValue = cell.text;\n        }\n      }\n    }\n\n    return cellValue;\n  }\n\n  /**\n   * The component state has been rendered in a <component></component> element\n   * and now we want to take a snapshot of the work.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image object.\n   */\n  generateImageFromRenderedComponentState(componentState) {\n    let deferred = this.$q.defer();\n    let tableElement = angular.element('#table_' + componentState.nodeId + '_' + componentState.componentId);\n    if (tableElement != null && tableElement.length > 0) {\n      tableElement = tableElement[0];\n      // convert the table element to a canvas element\n      html2canvas(tableElement).then((canvas) => {\n        // get the canvas as a base64 string\n        let img_b64 = canvas.toDataURL('image/png');\n\n        // get the image object\n        let imageObject = this.UtilService.getImageObjectFromBase64String(img_b64);\n\n        // add the image to the student assets\n        this.StudentAssetService.uploadAsset(imageObject).then((asset) => {\n          deferred.resolve(asset);\n        });\n      });\n    }\n    return deferred.promise;\n  }\n}\n\nTableService.$inject = [\n  '$filter',\n  '$q',\n  'StudentAssetService',\n  'StudentDataService',\n  'UtilService'\n];\n\nexport default TableService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/config.js b/src/main/webapp/wise5/config.js
index 77a8ff84c3..2c05eb4b5d 100644
--- a/src/main/webapp/wise5/config.js
+++ b/src/main/webapp/wise5/config.js
@@ -559,3 +559,16 @@ System.config({
     }
   }
 });
+
+//Cache Busting
+var systemLocate = System.locate;
+System.locate = function (load) {
+  var System = this; // its good to ensure exact instance-binding
+  return Promise.resolve(systemLocate.call(this, load)).then(function (address) {
+    if (address.endsWith('.html.js')) {
+      address = address.slice(0, -3);
+    }
+    return address + System.cacheBust;
+  });
+}
+System.cacheBust = '?v=5.7.6';
diff --git a/src/main/webapp/wise5/services/configService.es6 b/src/main/webapp/wise5/services/configService.es6
index 86a4d219ba..faf8df79cd 100644
--- a/src/main/webapp/wise5/services/configService.es6
+++ b/src/main/webapp/wise5/services/configService.es6
@@ -135,7 +135,8 @@ class ConfigService {
   };
 
   getWebSocketURL() {
-    return this.getConfigParam('webSocketURL');
+    return window.location.protocol.replace("http", "ws") + "//" + window.location.host +
+        this.getContextPath() + "/websocket";
   };
 
   getWISEBaseURL() {
diff --git a/src/main/webapp/wise5/services/configService.js b/src/main/webapp/wise5/services/configService.js
index e8f4f04bd5..a209d456d0 100644
--- a/src/main/webapp/wise5/services/configService.js
+++ b/src/main/webapp/wise5/services/configService.js
@@ -168,7 +168,7 @@ var ConfigService = function () {
   }, {
     key: 'getWebSocketURL',
     value: function getWebSocketURL() {
-      return this.getConfigParam('webSocketURL');
+      return window.location.protocol.replace("http", "ws") + "//" + window.location.host + this.getContextPath() + "/websocket";
     }
   }, {
     key: 'getWISEBaseURL',
diff --git a/src/main/webapp/wise5/services/configService.js.map b/src/main/webapp/wise5/services/configService.js.map
index f9a566d579..1258170852 100644
--- a/src/main/webapp/wise5/services/configService.js.map
+++ b/src/main/webapp/wise5/services/configService.js.map
@@ -1 +1 @@
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strict';\n\nclass ConfigService {\n  constructor($filter, $http, $location) {\n    this.$filter = $filter;\n    this.$http = $http;\n    this.$location = $location;\n    this.config = null;\n    this.$translate = this.$filter('translate');\n  };\n\n  setConfig(config) {\n    this.config = config;\n    this.sortClassmateUserInfosAlphabeticallyByName();\n    this.setPermissions();\n    this.setClassmateDisplayNames();\n  };\n\n  retrieveConfig(configURL) {\n    return this.$http.get(configURL).then((result) => {\n      const configJSON = result.data;\n      if (configJSON.retrievalTimestamp != null) {\n        const clientTimestamp = new Date().getTime();\n        const serverTimestamp = configJSON.retrievalTimestamp;\n        const timestampDiff = clientTimestamp - serverTimestamp;\n        configJSON.timestampDiff = timestampDiff;\n      }\n\n      let constraints = true;\n\n      const absURL = this.$location.$$absUrl;\n\n      if (configJSON.mode == 'preview') {\n        // constraints can only be disabled using the url in preview mode\n\n        // regex to match constraints=false in the url\n        const constraintsRegEx = new RegExp(\"constraints=false\", 'gi');\n\n        if (absURL != null && absURL.match(constraintsRegEx)) {\n          // the url contains constraints=false\n          constraints = false;\n        }\n      }\n\n      // set the constraints value into the config so we can access it later\n      configJSON.constraints = constraints;\n\n      // regex to match showProjectPath=true in the url\n      const showProjectPathRegEx = new RegExp(\"showProjectPath=true\", 'gi');\n\n      if (absURL != null && absURL.match(showProjectPathRegEx)) {\n        // the url contains showProjectPath=true\n        const host = location.origin;\n        const projectURL = configJSON.projectURL;\n        const projectPath = host + projectURL;\n        console.log(projectPath);\n      }\n\n      this.setConfig(configJSON);\n\n      if (this.isPreview()) {\n        const myUserInfo = this.getMyUserInfo();\n        if (myUserInfo != null) {\n          // set the workgroup id to a random integer between 1 and 100\n          myUserInfo.workgroupId = Math.floor(100 * Math.random()) + 1;\n        }\n      }\n\n      return configJSON;\n    });\n  };\n\n  getConfigParam(paramName) {\n    if (this.config !== null) {\n      return this.config[paramName];\n    } else {\n      return null;\n    }\n  };\n\n  getAchievementsURL() {\n    return this.getConfigParam('achievementURL');\n  };\n\n  getCRaterRequestURL() {\n    return this.getConfigParam('cRaterRequestURL');\n  };\n\n  getMainHomePageURL() {\n    return this.getConfigParam('mainHomePageURL');\n  };\n\n  getNotificationURL() {\n    return this.getConfigParam('notificationURL');\n  };\n\n  getRunId() {\n    return this.getConfigParam('runId');\n  };\n\n  getProjectId() {\n    return this.getConfigParam('projectId');\n  };\n\n  getOpenCPUURL() {\n    return this.getConfigParam('openCPUURL');\n  };\n\n  getSessionLogOutURL() {\n    return this.getConfigParam('sessionLogOutURL');\n  };\n\n  getStudentAssetsURL() {\n    return this.getConfigParam('studentAssetsURL');\n  };\n\n  getStudentStatusURL() {\n    return this.getConfigParam('studentStatusURL');\n  };\n\n  getStudentMaxTotalAssetsSize() {\n    return this.getConfigParam('studentMaxTotalAssetsSize');\n  };\n\n  getStudentNotebookURL() {\n    return this.getConfigParam('studentNotebookURL');\n  };\n\n  getStudentUploadsBaseURL() {\n    return this.getConfigParam('studentUploadsBaseURL');\n  };\n\n  getUserInfo() {\n    return this.getConfigParam('userInfo');\n  };\n\n  getWebSocketURL() {\n    return this.getConfigParam('webSocketURL');\n  };\n\n  getWISEBaseURL() {\n    return this.getConfigParam('wiseBaseURL');\n  };\n\n  getLocale() {\n    return this.getConfigParam('locale') || 'en';\n  };\n\n  getMode() {\n    return this.getConfigParam('mode');\n  };\n\n  getContextPath() {\n    return this.getConfigParam('contextPath');\n  }\n\n  /**\n   * Returns the period id of the logged-in user.\n   */\n  getPeriodId() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      return myUserInfo.periodId;\n    }\n    return null;\n  };\n\n  /**\n   * Get the periods\n   * @returns an array of period objects\n   */\n  getPeriods() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      const myClassInfo = myUserInfo.myClassInfo;\n      if (myClassInfo != null) {\n        if (myClassInfo.periods != null) {\n          return myClassInfo.periods;\n        }\n      }\n    }\n    return [];\n  };\n\n  getWorkgroupId() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      return myUserInfo.workgroupId;\n    }\n    return null;\n  };\n\n  /**\n   * Get the user id (aka WISE ID)\n   * @return the user id\n   */\n  getUserId() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      return myUserInfo.id;\n    }\n    return null;\n  }\n\n  getMyUserInfo() {\n    const userInfo = this.getUserInfo();\n    if (userInfo != null) {\n      return userInfo.myUserInfo;\n    }\n    return null;\n  };\n\n  /**\n   * Get the user name of the signed in user\n   * @return the user name of the signed in user\n   */\n  getMyUserName() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      return myUserInfo.userName;\n    }\n    return null;\n  }\n\n  getClassmateUserInfos() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      const myClassInfo = myUserInfo.myClassInfo;\n      if (myClassInfo != null) {\n        return myClassInfo.classmateUserInfos;\n      }\n    }\n    return null;\n  };\n\n  setClassmateDisplayNames() {\n    let classmateUserInfos = this.getClassmateUserInfos();\n    if (classmateUserInfos) {\n      for (let workgroup of classmateUserInfos) {\n        workgroup.displayNames = this.getDisplayUserNamesByWorkgroupId(workgroup.workgroupId);\n      }\n    }\n  }\n\n  /**\n   * Get the classmate user infos sorted by ascending workgroup id\n   * @return an array of classmate user info objects sorted by ascending\n   * workgroup id\n   */\n  getClassmateUserInfosSortedByWorkgroupId() {\n    const sortedClassmateUserInfos = [];\n    const classmateUserInfos = this.getClassmateUserInfos();\n    if (classmateUserInfos != null) {\n      for (let classmateUserInfo of classmateUserInfos) {\n        sortedClassmateUserInfos.push(classmateUserInfo);\n      }\n    }\n    // sort the new classmate user infos array by ascending workgroup id\n    sortedClassmateUserInfos.sort(this.compareClassmateUserInfosByWorkgroupId);\n    return sortedClassmateUserInfos;\n  }\n\n  /**\n   * Used to sort the classmate user infos by ascending workgroup id.\n   * Use by calling myArray.sort(compareClassmateUserInfosByWorkgroupId)\n   * @param a a user info object\n   * @param b a user info Object\n   * @return -1 if a comes before b\n   * 1 if a comes after b\n   * 0 if a equals b\n   */\n  compareClassmateUserInfosByWorkgroupId(a, b) {\n    if (a.workgroupId < b.workgroupId) {\n      return -1;\n    } else if (a.workgroupId > b.workgroupId) {\n      return 1;\n    } else {\n      return 0;\n    }\n  }\n\n  getTeacherWorkgroupId() {\n    const teacherUserInfo = this.getTeacherUserInfo();\n    if (teacherUserInfo != null) {\n      return teacherUserInfo.workgroupId;\n    }\n    return null;\n  };\n\n  getTeacherUserInfo() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      const myClassInfo = myUserInfo.myClassInfo;\n      if (myClassInfo != null) {\n        return myClassInfo.teacherUserInfo;\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the shared teacher user infos for the run\n   */\n  getSharedTeacherUserInfos() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      const myClassInfo = myUserInfo.myClassInfo;\n      if (myClassInfo != null) {\n        return myClassInfo.sharedTeacherUserInfos;\n      }\n    }\n    return null;\n  }\n\n  getClassmateWorkgroupIds(includeSelf) {\n    const workgroupIds = [];\n    if (includeSelf) {\n      workgroupIds.push(this.getWorkgroupId());\n    }\n    const classmateUserInfos = this.getClassmateUserInfos();\n    if (classmateUserInfos != null) {\n      for (let classmateUserInfo of classmateUserInfos) {\n        if (classmateUserInfo != null) {\n          const workgroupId = classmateUserInfo.workgroupId;\n\n          if (workgroupId != null) {\n            workgroupIds.push(workgroupId);\n          }\n        }\n      }\n    }\n    return workgroupIds;\n  };\n\n  sortClassmateUserInfosAlphabeticallyByName() {\n    const classmateUserInfos = this.getClassmateUserInfos();\n    if (classmateUserInfos != null) {\n      classmateUserInfos.sort(this.sortClassmateUserInfosAlphabeticallyByNameHelper);\n    }\n    return classmateUserInfos;\n  };\n\n  sortClassmateUserInfosAlphabeticallyByNameHelper(a, b) {\n    if (a != null && a.userName != null && b != null && b.userName != null) {\n      const aUserName = a.userName.toLowerCase();\n      const bUserName = b.userName.toLowerCase();\n      if (aUserName < bUserName) {\n        return -1;\n      } else if (aUserName > bUserName) {\n        return 1;\n      }\n    }\n    return 0;\n  };\n\n  setPermissions() {\n    let role = this.getTeacherRole(this.getWorkgroupId());\n    if (role === 'owner') {\n      // the teacher is the owner of the run and has full access\n      this.config.canViewStudentNames = true;\n      this.config.canGradeStudentWork = true;\n    } else if (role === 'write') {\n      // the teacher is a shared teacher that can grade the student work\n      this.config.canViewStudentNames = true;\n      this.config.canGradeStudentWork = true;\n    } else if (role === 'read') {\n      // the teacher is a shared teacher that can only view the student work\n      this.config.canViewStudentNames = false;\n      this.config.canGradeStudentWork = false;\n    } else {\n      // teacher role is null, so assume we're in student mode\n      this.config.canViewStudentNames = true;\n      this.config.canGradeStudentWork = false;\n    }\n  }\n\n  getPermissions() {\n    // a switched user (admin/researcher user impersonating a teacher) should not be able to view/grade\n    return {\n      canViewStudentNames: this.config.canViewStudentNames && !this.isSwitchedUser(),\n      canGradeStudentWork: this.config.canGradeStudentWork && !this.isSwitchedUser()\n    }\n  }\n\n  getUserInfoByWorkgroupId(workgroupId) {\n    let userInfo = null;\n    if (workgroupId != null) {\n      const myUserInfo = this.getMyUserInfo();\n      if (myUserInfo != null) {\n        const tempWorkgroupId = myUserInfo.workgroupId;\n        if (workgroupId === tempWorkgroupId) {\n          userInfo = myUserInfo;\n        }\n      }\n\n      if (userInfo == null) {\n        const classmateUserInfos = this.getClassmateUserInfos();\n        if (classmateUserInfos != null) {\n          for (let classmateUserInfo of classmateUserInfos) {\n            if (classmateUserInfo != null) {\n              const tempWorkgroupId = classmateUserInfo.workgroupId;\n              if (workgroupId == tempWorkgroupId) {\n                userInfo = classmateUserInfo;\n                break;\n              }\n            }\n          }\n        }\n      }\n    }\n    return userInfo;\n  };\n\n  /**\n   * Get the period id for a workgroup id\n   * @param workgroupId the workgroup id\n   * @returns the period id the workgroup id is in\n   */\n  getPeriodIdByWorkgroupId(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.periodId;\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the student names\n   * @param workgroupId the workgroup id\n   * @return an array containing the student names\n   */\n  getStudentFirstNamesByWorkgroupId(workgroupId) {\n    const studentNames = [];\n    const userNames = this.getUserNameByWorkgroupId(workgroupId);\n\n    if (userNames != null) {\n      // split the user names string by ':'\n      const userNamesSplit = userNames.split(':');\n\n      if (userNamesSplit != null) {\n        for (let userName of userNamesSplit) {\n          const indexOfSpace = userName.indexOf(' ');\n          const studentFirstName = userName.substring(0, indexOfSpace);\n          studentNames.push(studentFirstName);\n        }\n      }\n    }\n    return studentNames;\n  };\n\n  getUserIdsByWorkgroupId(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.userIds;\n      }\n    }\n    return [];\n  };\n\n  getUserNameByWorkgroupId(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.userName;\n      }\n    }\n    return null;\n  };\n\n  getDisplayNamesByWorkgroupId(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.displayNames;\n      }\n    }\n    return null;\n  };\n\n  getUserNamesByWorkgroupId(workgroupId) {\n    let userNamesObjects = [];\n    if (workgroupId != null) {\n      let userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        let userNames = userInfo.userName.split(':');\n        for (let name of userNames) {\n          let id = \"\";\n          let regex = /(.+) \\((.+)\\)/g;\n          let matches = regex.exec(name);\n          if (matches) {\n            name = matches[1];\n            id = matches[2];\n          }\n          userNamesObjects.push({\n            name: name,\n            id: id\n          });\n        }\n      }\n    }\n    return userNamesObjects;\n  };\n\n  getDisplayUserNamesByWorkgroupId(workgroupId) {\n    let usernames = '';\n    if (workgroupId != null) {\n      if (this.getPermissions().canViewStudentNames) {\n        let names = this.getUserNamesByWorkgroupId(workgroupId);\n        let l = names.length;\n        for (let i = 0; i < l; i++) {\n          let name = names[i].name;\n          usernames += name;\n\n          if (i < (l-1)) {\n            usernames += ', ';\n          }\n        }\n      } else {\n        // current user is not allowed to view student names, so return string with student ids\n        let userIds = this.getUserIdsByWorkgroupId(workgroupId);\n        for (let i = 0; i < userIds.length; i++) {\n          let id = userIds[i];\n          if (i !== 0) {\n            usernames += ', ';\n          }\n          usernames += this.$translate('studentId', {id: id});\n        }\n      }\n    }\n    return usernames;\n  };\n\n  isPreview() {\n    const mode = this.getMode();\n    return mode != null && mode === 'preview';\n  };\n\n  /**\n   * Convert a client timestamp to a server timestamp. This is required\n   * in case the client and server clocks are not synchronized.\n   * @param clientTimestamp the client timestamp\n   */\n  convertToServerTimestamp(clientTimestamp) {\n    const timestampDiff = this.getConfigParam('timestampDiff');\n    const serverTimestamp = clientTimestamp - timestampDiff;\n    return serverTimestamp;\n  }\n\n  /**\n   * Convert a server timestamp to a client timestamp. This is required\n   * in case the client and server clocks are not synchronized.\n   * @param serverTimestamp the client timestamp\n   */\n  convertToClientTimestamp(serverTimestamp) {\n    const timestampDiff = this.getConfigParam('timestampDiff');\n    const clientTimestamp = serverTimestamp + timestampDiff;\n    return clientTimestamp;\n  }\n\n  /**\n   * Check if the workgroup is the owner of the run\n   * @param workgroupId the workgroup id\n   * @returns whether the workgroup is the owner of the run\n   */\n  isRunOwner(workgroupId) {\n    if (workgroupId != null) {\n      const teacherUserInfo = this.getTeacherUserInfo();\n      if (teacherUserInfo != null) {\n        if (workgroupId == teacherUserInfo.workgroupId) {\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the workgroup is a shared teacher for the run\n   * @param workgroupId the workgroup id\n   * @returns whether the workgroup is a shared teacher of the run\n   */\n  isRunSharedTeacher(workgroupId) {\n    if (workgroupId != null) {\n      const sharedTeacherUserInfos = this.getSharedTeacherUserInfos();\n      if (sharedTeacherUserInfos != null) {\n        for (let sharedTeacherUserInfo of sharedTeacherUserInfos) {\n          if (sharedTeacherUserInfo != null) {\n            if (workgroupId == sharedTeacherUserInfo.workgroupId) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the teacher role for the run\n   * @param workgroupId the workgroup id\n   * @returns the role of the teacher for the run. the possible values are\n   * 'owner', 'write', 'read'\n   */\n  getTeacherRole(workgroupId) {\n    if (this.isRunOwner(workgroupId)) {\n      return 'owner';\n    } else if (this.isRunSharedTeacher(workgroupId)) {\n      return this.getSharedTeacherRole(workgroupId);\n    }\n    return null;\n  }\n\n  /**\n   * Get the shared teacher role for the run\n   * @param workgroupId the workgroup id\n   * @returns the shared teacher role for the run. the possible values are\n   * 'write' or 'read'\n   */\n  getSharedTeacherRole(workgroupId) {\n    if (workgroupId != null) {\n      const sharedTeacherUserInfos = this.getSharedTeacherUserInfos();\n      if (sharedTeacherUserInfos != null) {\n        for (let sharedTeacherUserInfo of sharedTeacherUserInfos) {\n          if (sharedTeacherUserInfo != null) {\n            if (workgroupId == sharedTeacherUserInfo.workgroupId) {\n              return sharedTeacherUserInfo.role;\n            }\n          }\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Replace student names in the content.\n   * For example, we will replace instances of {{firstStudentFirstName}}\n   * with the actual first name of the first student in the workgroup.\n   * @param content a content object or string\n   * @return an updated content object or string\n   */\n  replaceStudentNames(content) {\n    if (content != null) {\n      let contentString = content;\n      if (typeof content === 'object') {\n        contentString = JSON.stringify(content);\n      }\n      if (contentString != null) {\n        const workgroupId = this.getWorkgroupId();\n        const firstNames = this.getStudentFirstNamesByWorkgroupId(workgroupId);\n\n        if (firstNames.length >= 1) {\n          /*\n           * there are 1 or more students in the workgroup so we can\n           * replace the first student first name with the actual\n           * name\n           */\n          contentString = contentString.replace(new RegExp('{{firstStudentFirstName}}', 'gi'), firstNames[0]);\n\n          /*\n           * there are 1 or more students in the workgroup so we can\n           * replace the student first names with the actual names\n           */\n          contentString = contentString.replace(new RegExp('{{studentFirstNames}}', 'gi'), firstNames.join(\", \"));\n        }\n\n        if (firstNames.length >= 2) {\n          /*\n           * there are 2 or more students in the workgroup so we can\n           * replace the second student first name with the actual\n           * name\n           */\n          contentString = contentString.replace(new RegExp('{{secondStudentFirstName}}', 'gi'), firstNames[1]);\n        }\n\n        if (firstNames.length >= 3) {\n          /*\n           * there are 3 or more students in the workgroup so we can\n           * replace the third student first name with the actual\n           * name\n           */\n          contentString = contentString.replace(new RegExp('{{thirdStudentFirstName}}', 'gi'), firstNames[2]);\n        }\n      }\n\n      if (typeof content === 'object') {\n        // convert the content string back into an object\n        content = JSON.parse(contentString);\n      } else if (typeof content === 'string') {\n        // the content was a string so we can just use the content string\n        content = contentString;\n      }\n    }\n    return content;\n  }\n\n  getAvatarColorForWorkgroupId(workgroupId) {\n    const avatarColors = ['#E91E63', '#9C27B0', '#CDDC39', '#2196F3', '#FDD835', '#43A047', '#795548', '#EF6C00', '#C62828', '#607D8B'];\n    const modulo = workgroupId % 10;\n    return avatarColors[modulo];\n  }\n\n  /**\n   * Get the library projects\n   */\n  getLibraryProjects() {\n    const getLibraryProjectsURL = this.getConfigParam('getLibraryProjectsURL');\n\n    if (getLibraryProjectsURL != null) {\n      // request the list of library projects\n      return this.$http.get(getLibraryProjectsURL).then((result) => {\n        const data = result.data;\n        if (data != null) {\n          // reverse the list so that it is ordered newest to oldest\n          data.reverse();\n        }\n        return data;\n      });\n    }\n  }\n\n  /**\n   * Get the project assets folder path\n   * @param includeHost whether to include the host in the URL\n   * @return the project assets folder path\n   * e.g.\n   * with host\n   * http://wise.berkeley.edu/wise/curriculum/3/assets\n   * without host\n   * /wise/curriculum/3/assets\n   */\n  getProjectAssetsDirectoryPath(includeHost) {\n    const projectBaseURL = this.getConfigParam('projectBaseURL');\n    if (projectBaseURL != null) {\n      if (includeHost) {\n        const host = window.location.origin;\n\n        /*\n         * get the full path including the host\n         * e.g. http://wise.berkeley.edu/wise/curriculum/3/assets\n         */\n        return host + projectBaseURL + 'assets';\n      } else {\n        /*\n         * get the full path not including the host\n         * e.g. /wise/curriculum/3/assets\n         */\n        return projectBaseURL + 'assets';\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Remove the absolute asset paths\n   * e.g.\n   * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n   * will be changed to\n   * <img src='sun.png'/>\n   * @param html the html\n   * @return the modified html without the absolute asset paths\n   */\n  removeAbsoluteAssetPaths(html) {\n    /*\n     * get the assets directory path with the host\n     * e.g.\n     * https://wise.berkeley.edu/wise/curriculum/3/assets/\n     */\n    const includeHost = true;\n    const assetsDirectoryPathIncludingHost = this.getProjectAssetsDirectoryPath(includeHost);\n    const assetsDirectoryPathIncludingHostRegEx = new RegExp(assetsDirectoryPathIncludingHost, 'g');\n\n    /*\n     * get the assets directory path without the host\n     * e.g.\n     * /wise/curriculum/3/assets/\n     */\n    const assetsDirectoryPathNotIncludingHost = this.getProjectAssetsDirectoryPath() + '/';\n    const assetsDirectoryPathNotIncludingHostRegEx = new RegExp(assetsDirectoryPathNotIncludingHost, 'g');\n\n    /*\n     * remove the directory path from the html so that only the file name\n     * remains in asset references\n     * e.g.\n     * <img src='https://wise.berkeley.edu/wise/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = html.replace(assetsDirectoryPathIncludingHostRegEx, '');\n    html = html.replace(assetsDirectoryPathNotIncludingHostRegEx, '');\n    return html\n  }\n\n  /**\n   * Get the WISE IDs for a workgroup\n   * @param workgroupId get the WISE IDs for this workgroup\n   * @return an array of WISE IDs\n   */\n  getWISEIds(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.userIds;\n      }\n    }\n    return [];\n  }\n\n  /**\n   * Get all the authorable projects\n   */\n  getAuthorableProjects() {\n    const ownedProjects = this.getConfigParam('projects');\n    const sharedProjects = this.getConfigParam('sharedProjects');\n    let authorableProjects = [];\n    if (ownedProjects != null) {\n      authorableProjects = authorableProjects.concat(ownedProjects);\n    }\n\n    if (sharedProjects != null) {\n      authorableProjects = authorableProjects.concat(sharedProjects);\n    }\n\n    // sort the projects by descending id\n    authorableProjects.sort(this.sortByProjectId);\n    return authorableProjects;\n  }\n\n  /**\n   * Determines whether the current user is logged in as somebody else\n   * @return true iff the user is a switched user\n   */\n  isSwitchedUser() {\n    let myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      if (myUserInfo.isSwitchedUser) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Sort the objects by descending id.\n   * @param projectA an object with an id field\n   * @param projectB an object with an id field\n   * @return 1 if projectA comes before projectB\n   * -1 if projectA comes after projectB\n   * 0 if they are the same\n   */\n  sortByProjectId(projectA, projectB) {\n    const projectIdA = projectA.id;\n    const projectIdB = projectB.id;\n    if (projectIdA < projectIdB) {\n      return 1;\n    } else if (projectIdA > projectIdB) {\n      return -1;\n    } else {\n      return 0;\n    }\n  }\n}\n\nConfigService.$inject = [\n  '$filter',\n  '$http',\n  '$location'\n];\n\nexport default ConfigService;\n"]}
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strict';\n\nclass ConfigService {\n  constructor($filter, $http, $location) {\n    this.$filter = $filter;\n    this.$http = $http;\n    this.$location = $location;\n    this.config = null;\n    this.$translate = this.$filter('translate');\n  };\n\n  setConfig(config) {\n    this.config = config;\n    this.sortClassmateUserInfosAlphabeticallyByName();\n    this.setPermissions();\n    this.setClassmateDisplayNames();\n  };\n\n  retrieveConfig(configURL) {\n    return this.$http.get(configURL).then((result) => {\n      const configJSON = result.data;\n      if (configJSON.retrievalTimestamp != null) {\n        const clientTimestamp = new Date().getTime();\n        const serverTimestamp = configJSON.retrievalTimestamp;\n        const timestampDiff = clientTimestamp - serverTimestamp;\n        configJSON.timestampDiff = timestampDiff;\n      }\n\n      let constraints = true;\n\n      const absURL = this.$location.$$absUrl;\n\n      if (configJSON.mode == 'preview') {\n        // constraints can only be disabled using the url in preview mode\n\n        // regex to match constraints=false in the url\n        const constraintsRegEx = new RegExp(\"constraints=false\", 'gi');\n\n        if (absURL != null && absURL.match(constraintsRegEx)) {\n          // the url contains constraints=false\n          constraints = false;\n        }\n      }\n\n      // set the constraints value into the config so we can access it later\n      configJSON.constraints = constraints;\n\n      // regex to match showProjectPath=true in the url\n      const showProjectPathRegEx = new RegExp(\"showProjectPath=true\", 'gi');\n\n      if (absURL != null && absURL.match(showProjectPathRegEx)) {\n        // the url contains showProjectPath=true\n        const host = location.origin;\n        const projectURL = configJSON.projectURL;\n        const projectPath = host + projectURL;\n        console.log(projectPath);\n      }\n\n      this.setConfig(configJSON);\n\n      if (this.isPreview()) {\n        const myUserInfo = this.getMyUserInfo();\n        if (myUserInfo != null) {\n          // set the workgroup id to a random integer between 1 and 100\n          myUserInfo.workgroupId = Math.floor(100 * Math.random()) + 1;\n        }\n      }\n\n      return configJSON;\n    });\n  };\n\n  getConfigParam(paramName) {\n    if (this.config !== null) {\n      return this.config[paramName];\n    } else {\n      return null;\n    }\n  };\n\n  getAchievementsURL() {\n    return this.getConfigParam('achievementURL');\n  };\n\n  getCRaterRequestURL() {\n    return this.getConfigParam('cRaterRequestURL');\n  };\n\n  getMainHomePageURL() {\n    return this.getConfigParam('mainHomePageURL');\n  };\n\n  getNotificationURL() {\n    return this.getConfigParam('notificationURL');\n  };\n\n  getRunId() {\n    return this.getConfigParam('runId');\n  };\n\n  getProjectId() {\n    return this.getConfigParam('projectId');\n  };\n\n  getOpenCPUURL() {\n    return this.getConfigParam('openCPUURL');\n  };\n\n  getSessionLogOutURL() {\n    return this.getConfigParam('sessionLogOutURL');\n  };\n\n  getStudentAssetsURL() {\n    return this.getConfigParam('studentAssetsURL');\n  };\n\n  getStudentStatusURL() {\n    return this.getConfigParam('studentStatusURL');\n  };\n\n  getStudentMaxTotalAssetsSize() {\n    return this.getConfigParam('studentMaxTotalAssetsSize');\n  };\n\n  getStudentNotebookURL() {\n    return this.getConfigParam('studentNotebookURL');\n  };\n\n  getStudentUploadsBaseURL() {\n    return this.getConfigParam('studentUploadsBaseURL');\n  };\n\n  getUserInfo() {\n    return this.getConfigParam('userInfo');\n  };\n\n  getWebSocketURL() {\n    return window.location.protocol.replace(\"http\", \"ws\") + \"//\" + window.location.host +\n        this.getContextPath() + \"/websocket\";\n  };\n\n  getWISEBaseURL() {\n    return this.getConfigParam('wiseBaseURL');\n  };\n\n  getLocale() {\n    return this.getConfigParam('locale') || 'en';\n  };\n\n  getMode() {\n    return this.getConfigParam('mode');\n  };\n\n  getContextPath() {\n    return this.getConfigParam('contextPath');\n  }\n\n  /**\n   * Returns the period id of the logged-in user.\n   */\n  getPeriodId() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      return myUserInfo.periodId;\n    }\n    return null;\n  };\n\n  /**\n   * Get the periods\n   * @returns an array of period objects\n   */\n  getPeriods() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      const myClassInfo = myUserInfo.myClassInfo;\n      if (myClassInfo != null) {\n        if (myClassInfo.periods != null) {\n          return myClassInfo.periods;\n        }\n      }\n    }\n    return [];\n  };\n\n  getWorkgroupId() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      return myUserInfo.workgroupId;\n    }\n    return null;\n  };\n\n  /**\n   * Get the user id (aka WISE ID)\n   * @return the user id\n   */\n  getUserId() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      return myUserInfo.id;\n    }\n    return null;\n  }\n\n  getMyUserInfo() {\n    const userInfo = this.getUserInfo();\n    if (userInfo != null) {\n      return userInfo.myUserInfo;\n    }\n    return null;\n  };\n\n  /**\n   * Get the user name of the signed in user\n   * @return the user name of the signed in user\n   */\n  getMyUserName() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      return myUserInfo.userName;\n    }\n    return null;\n  }\n\n  getClassmateUserInfos() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      const myClassInfo = myUserInfo.myClassInfo;\n      if (myClassInfo != null) {\n        return myClassInfo.classmateUserInfos;\n      }\n    }\n    return null;\n  };\n\n  setClassmateDisplayNames() {\n    let classmateUserInfos = this.getClassmateUserInfos();\n    if (classmateUserInfos) {\n      for (let workgroup of classmateUserInfos) {\n        workgroup.displayNames = this.getDisplayUserNamesByWorkgroupId(workgroup.workgroupId);\n      }\n    }\n  }\n\n  /**\n   * Get the classmate user infos sorted by ascending workgroup id\n   * @return an array of classmate user info objects sorted by ascending\n   * workgroup id\n   */\n  getClassmateUserInfosSortedByWorkgroupId() {\n    const sortedClassmateUserInfos = [];\n    const classmateUserInfos = this.getClassmateUserInfos();\n    if (classmateUserInfos != null) {\n      for (let classmateUserInfo of classmateUserInfos) {\n        sortedClassmateUserInfos.push(classmateUserInfo);\n      }\n    }\n    // sort the new classmate user infos array by ascending workgroup id\n    sortedClassmateUserInfos.sort(this.compareClassmateUserInfosByWorkgroupId);\n    return sortedClassmateUserInfos;\n  }\n\n  /**\n   * Used to sort the classmate user infos by ascending workgroup id.\n   * Use by calling myArray.sort(compareClassmateUserInfosByWorkgroupId)\n   * @param a a user info object\n   * @param b a user info Object\n   * @return -1 if a comes before b\n   * 1 if a comes after b\n   * 0 if a equals b\n   */\n  compareClassmateUserInfosByWorkgroupId(a, b) {\n    if (a.workgroupId < b.workgroupId) {\n      return -1;\n    } else if (a.workgroupId > b.workgroupId) {\n      return 1;\n    } else {\n      return 0;\n    }\n  }\n\n  getTeacherWorkgroupId() {\n    const teacherUserInfo = this.getTeacherUserInfo();\n    if (teacherUserInfo != null) {\n      return teacherUserInfo.workgroupId;\n    }\n    return null;\n  };\n\n  getTeacherUserInfo() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      const myClassInfo = myUserInfo.myClassInfo;\n      if (myClassInfo != null) {\n        return myClassInfo.teacherUserInfo;\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the shared teacher user infos for the run\n   */\n  getSharedTeacherUserInfos() {\n    const myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      const myClassInfo = myUserInfo.myClassInfo;\n      if (myClassInfo != null) {\n        return myClassInfo.sharedTeacherUserInfos;\n      }\n    }\n    return null;\n  }\n\n  getClassmateWorkgroupIds(includeSelf) {\n    const workgroupIds = [];\n    if (includeSelf) {\n      workgroupIds.push(this.getWorkgroupId());\n    }\n    const classmateUserInfos = this.getClassmateUserInfos();\n    if (classmateUserInfos != null) {\n      for (let classmateUserInfo of classmateUserInfos) {\n        if (classmateUserInfo != null) {\n          const workgroupId = classmateUserInfo.workgroupId;\n\n          if (workgroupId != null) {\n            workgroupIds.push(workgroupId);\n          }\n        }\n      }\n    }\n    return workgroupIds;\n  };\n\n  sortClassmateUserInfosAlphabeticallyByName() {\n    const classmateUserInfos = this.getClassmateUserInfos();\n    if (classmateUserInfos != null) {\n      classmateUserInfos.sort(this.sortClassmateUserInfosAlphabeticallyByNameHelper);\n    }\n    return classmateUserInfos;\n  };\n\n  sortClassmateUserInfosAlphabeticallyByNameHelper(a, b) {\n    if (a != null && a.userName != null && b != null && b.userName != null) {\n      const aUserName = a.userName.toLowerCase();\n      const bUserName = b.userName.toLowerCase();\n      if (aUserName < bUserName) {\n        return -1;\n      } else if (aUserName > bUserName) {\n        return 1;\n      }\n    }\n    return 0;\n  };\n\n  setPermissions() {\n    let role = this.getTeacherRole(this.getWorkgroupId());\n    if (role === 'owner') {\n      // the teacher is the owner of the run and has full access\n      this.config.canViewStudentNames = true;\n      this.config.canGradeStudentWork = true;\n    } else if (role === 'write') {\n      // the teacher is a shared teacher that can grade the student work\n      this.config.canViewStudentNames = true;\n      this.config.canGradeStudentWork = true;\n    } else if (role === 'read') {\n      // the teacher is a shared teacher that can only view the student work\n      this.config.canViewStudentNames = false;\n      this.config.canGradeStudentWork = false;\n    } else {\n      // teacher role is null, so assume we're in student mode\n      this.config.canViewStudentNames = true;\n      this.config.canGradeStudentWork = false;\n    }\n  }\n\n  getPermissions() {\n    // a switched user (admin/researcher user impersonating a teacher) should not be able to view/grade\n    return {\n      canViewStudentNames: this.config.canViewStudentNames && !this.isSwitchedUser(),\n      canGradeStudentWork: this.config.canGradeStudentWork && !this.isSwitchedUser()\n    }\n  }\n\n  getUserInfoByWorkgroupId(workgroupId) {\n    let userInfo = null;\n    if (workgroupId != null) {\n      const myUserInfo = this.getMyUserInfo();\n      if (myUserInfo != null) {\n        const tempWorkgroupId = myUserInfo.workgroupId;\n        if (workgroupId === tempWorkgroupId) {\n          userInfo = myUserInfo;\n        }\n      }\n\n      if (userInfo == null) {\n        const classmateUserInfos = this.getClassmateUserInfos();\n        if (classmateUserInfos != null) {\n          for (let classmateUserInfo of classmateUserInfos) {\n            if (classmateUserInfo != null) {\n              const tempWorkgroupId = classmateUserInfo.workgroupId;\n              if (workgroupId == tempWorkgroupId) {\n                userInfo = classmateUserInfo;\n                break;\n              }\n            }\n          }\n        }\n      }\n    }\n    return userInfo;\n  };\n\n  /**\n   * Get the period id for a workgroup id\n   * @param workgroupId the workgroup id\n   * @returns the period id the workgroup id is in\n   */\n  getPeriodIdByWorkgroupId(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.periodId;\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the student names\n   * @param workgroupId the workgroup id\n   * @return an array containing the student names\n   */\n  getStudentFirstNamesByWorkgroupId(workgroupId) {\n    const studentNames = [];\n    const userNames = this.getUserNameByWorkgroupId(workgroupId);\n\n    if (userNames != null) {\n      // split the user names string by ':'\n      const userNamesSplit = userNames.split(':');\n\n      if (userNamesSplit != null) {\n        for (let userName of userNamesSplit) {\n          const indexOfSpace = userName.indexOf(' ');\n          const studentFirstName = userName.substring(0, indexOfSpace);\n          studentNames.push(studentFirstName);\n        }\n      }\n    }\n    return studentNames;\n  };\n\n  getUserIdsByWorkgroupId(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.userIds;\n      }\n    }\n    return [];\n  };\n\n  getUserNameByWorkgroupId(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.userName;\n      }\n    }\n    return null;\n  };\n\n  getDisplayNamesByWorkgroupId(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.displayNames;\n      }\n    }\n    return null;\n  };\n\n  getUserNamesByWorkgroupId(workgroupId) {\n    let userNamesObjects = [];\n    if (workgroupId != null) {\n      let userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        let userNames = userInfo.userName.split(':');\n        for (let name of userNames) {\n          let id = \"\";\n          let regex = /(.+) \\((.+)\\)/g;\n          let matches = regex.exec(name);\n          if (matches) {\n            name = matches[1];\n            id = matches[2];\n          }\n          userNamesObjects.push({\n            name: name,\n            id: id\n          });\n        }\n      }\n    }\n    return userNamesObjects;\n  };\n\n  getDisplayUserNamesByWorkgroupId(workgroupId) {\n    let usernames = '';\n    if (workgroupId != null) {\n      if (this.getPermissions().canViewStudentNames) {\n        let names = this.getUserNamesByWorkgroupId(workgroupId);\n        let l = names.length;\n        for (let i = 0; i < l; i++) {\n          let name = names[i].name;\n          usernames += name;\n\n          if (i < (l-1)) {\n            usernames += ', ';\n          }\n        }\n      } else {\n        // current user is not allowed to view student names, so return string with student ids\n        let userIds = this.getUserIdsByWorkgroupId(workgroupId);\n        for (let i = 0; i < userIds.length; i++) {\n          let id = userIds[i];\n          if (i !== 0) {\n            usernames += ', ';\n          }\n          usernames += this.$translate('studentId', {id: id});\n        }\n      }\n    }\n    return usernames;\n  };\n\n  isPreview() {\n    const mode = this.getMode();\n    return mode != null && mode === 'preview';\n  };\n\n  /**\n   * Convert a client timestamp to a server timestamp. This is required\n   * in case the client and server clocks are not synchronized.\n   * @param clientTimestamp the client timestamp\n   */\n  convertToServerTimestamp(clientTimestamp) {\n    const timestampDiff = this.getConfigParam('timestampDiff');\n    const serverTimestamp = clientTimestamp - timestampDiff;\n    return serverTimestamp;\n  }\n\n  /**\n   * Convert a server timestamp to a client timestamp. This is required\n   * in case the client and server clocks are not synchronized.\n   * @param serverTimestamp the client timestamp\n   */\n  convertToClientTimestamp(serverTimestamp) {\n    const timestampDiff = this.getConfigParam('timestampDiff');\n    const clientTimestamp = serverTimestamp + timestampDiff;\n    return clientTimestamp;\n  }\n\n  /**\n   * Check if the workgroup is the owner of the run\n   * @param workgroupId the workgroup id\n   * @returns whether the workgroup is the owner of the run\n   */\n  isRunOwner(workgroupId) {\n    if (workgroupId != null) {\n      const teacherUserInfo = this.getTeacherUserInfo();\n      if (teacherUserInfo != null) {\n        if (workgroupId == teacherUserInfo.workgroupId) {\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the workgroup is a shared teacher for the run\n   * @param workgroupId the workgroup id\n   * @returns whether the workgroup is a shared teacher of the run\n   */\n  isRunSharedTeacher(workgroupId) {\n    if (workgroupId != null) {\n      const sharedTeacherUserInfos = this.getSharedTeacherUserInfos();\n      if (sharedTeacherUserInfos != null) {\n        for (let sharedTeacherUserInfo of sharedTeacherUserInfos) {\n          if (sharedTeacherUserInfo != null) {\n            if (workgroupId == sharedTeacherUserInfo.workgroupId) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the teacher role for the run\n   * @param workgroupId the workgroup id\n   * @returns the role of the teacher for the run. the possible values are\n   * 'owner', 'write', 'read'\n   */\n  getTeacherRole(workgroupId) {\n    if (this.isRunOwner(workgroupId)) {\n      return 'owner';\n    } else if (this.isRunSharedTeacher(workgroupId)) {\n      return this.getSharedTeacherRole(workgroupId);\n    }\n    return null;\n  }\n\n  /**\n   * Get the shared teacher role for the run\n   * @param workgroupId the workgroup id\n   * @returns the shared teacher role for the run. the possible values are\n   * 'write' or 'read'\n   */\n  getSharedTeacherRole(workgroupId) {\n    if (workgroupId != null) {\n      const sharedTeacherUserInfos = this.getSharedTeacherUserInfos();\n      if (sharedTeacherUserInfos != null) {\n        for (let sharedTeacherUserInfo of sharedTeacherUserInfos) {\n          if (sharedTeacherUserInfo != null) {\n            if (workgroupId == sharedTeacherUserInfo.workgroupId) {\n              return sharedTeacherUserInfo.role;\n            }\n          }\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Replace student names in the content.\n   * For example, we will replace instances of {{firstStudentFirstName}}\n   * with the actual first name of the first student in the workgroup.\n   * @param content a content object or string\n   * @return an updated content object or string\n   */\n  replaceStudentNames(content) {\n    if (content != null) {\n      let contentString = content;\n      if (typeof content === 'object') {\n        contentString = JSON.stringify(content);\n      }\n      if (contentString != null) {\n        const workgroupId = this.getWorkgroupId();\n        const firstNames = this.getStudentFirstNamesByWorkgroupId(workgroupId);\n\n        if (firstNames.length >= 1) {\n          /*\n           * there are 1 or more students in the workgroup so we can\n           * replace the first student first name with the actual\n           * name\n           */\n          contentString = contentString.replace(new RegExp('{{firstStudentFirstName}}', 'gi'), firstNames[0]);\n\n          /*\n           * there are 1 or more students in the workgroup so we can\n           * replace the student first names with the actual names\n           */\n          contentString = contentString.replace(new RegExp('{{studentFirstNames}}', 'gi'), firstNames.join(\", \"));\n        }\n\n        if (firstNames.length >= 2) {\n          /*\n           * there are 2 or more students in the workgroup so we can\n           * replace the second student first name with the actual\n           * name\n           */\n          contentString = contentString.replace(new RegExp('{{secondStudentFirstName}}', 'gi'), firstNames[1]);\n        }\n\n        if (firstNames.length >= 3) {\n          /*\n           * there are 3 or more students in the workgroup so we can\n           * replace the third student first name with the actual\n           * name\n           */\n          contentString = contentString.replace(new RegExp('{{thirdStudentFirstName}}', 'gi'), firstNames[2]);\n        }\n      }\n\n      if (typeof content === 'object') {\n        // convert the content string back into an object\n        content = JSON.parse(contentString);\n      } else if (typeof content === 'string') {\n        // the content was a string so we can just use the content string\n        content = contentString;\n      }\n    }\n    return content;\n  }\n\n  getAvatarColorForWorkgroupId(workgroupId) {\n    const avatarColors = ['#E91E63', '#9C27B0', '#CDDC39', '#2196F3', '#FDD835', '#43A047', '#795548', '#EF6C00', '#C62828', '#607D8B'];\n    const modulo = workgroupId % 10;\n    return avatarColors[modulo];\n  }\n\n  /**\n   * Get the library projects\n   */\n  getLibraryProjects() {\n    const getLibraryProjectsURL = this.getConfigParam('getLibraryProjectsURL');\n\n    if (getLibraryProjectsURL != null) {\n      // request the list of library projects\n      return this.$http.get(getLibraryProjectsURL).then((result) => {\n        const data = result.data;\n        if (data != null) {\n          // reverse the list so that it is ordered newest to oldest\n          data.reverse();\n        }\n        return data;\n      });\n    }\n  }\n\n  /**\n   * Get the project assets folder path\n   * @param includeHost whether to include the host in the URL\n   * @return the project assets folder path\n   * e.g.\n   * with host\n   * http://wise.berkeley.edu/wise/curriculum/3/assets\n   * without host\n   * /wise/curriculum/3/assets\n   */\n  getProjectAssetsDirectoryPath(includeHost) {\n    const projectBaseURL = this.getConfigParam('projectBaseURL');\n    if (projectBaseURL != null) {\n      if (includeHost) {\n        const host = window.location.origin;\n\n        /*\n         * get the full path including the host\n         * e.g. http://wise.berkeley.edu/wise/curriculum/3/assets\n         */\n        return host + projectBaseURL + 'assets';\n      } else {\n        /*\n         * get the full path not including the host\n         * e.g. /wise/curriculum/3/assets\n         */\n        return projectBaseURL + 'assets';\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Remove the absolute asset paths\n   * e.g.\n   * <img src='https://wise.berkeley.edu/curriculum/3/assets/sun.png'/>\n   * will be changed to\n   * <img src='sun.png'/>\n   * @param html the html\n   * @return the modified html without the absolute asset paths\n   */\n  removeAbsoluteAssetPaths(html) {\n    /*\n     * get the assets directory path with the host\n     * e.g.\n     * https://wise.berkeley.edu/wise/curriculum/3/assets/\n     */\n    const includeHost = true;\n    const assetsDirectoryPathIncludingHost = this.getProjectAssetsDirectoryPath(includeHost);\n    const assetsDirectoryPathIncludingHostRegEx = new RegExp(assetsDirectoryPathIncludingHost, 'g');\n\n    /*\n     * get the assets directory path without the host\n     * e.g.\n     * /wise/curriculum/3/assets/\n     */\n    const assetsDirectoryPathNotIncludingHost = this.getProjectAssetsDirectoryPath() + '/';\n    const assetsDirectoryPathNotIncludingHostRegEx = new RegExp(assetsDirectoryPathNotIncludingHost, 'g');\n\n    /*\n     * remove the directory path from the html so that only the file name\n     * remains in asset references\n     * e.g.\n     * <img src='https://wise.berkeley.edu/wise/curriculum/3/assets/sun.png'/>\n     * will be changed to\n     * <img src='sun.png'/>\n     */\n    html = html.replace(assetsDirectoryPathIncludingHostRegEx, '');\n    html = html.replace(assetsDirectoryPathNotIncludingHostRegEx, '');\n    return html\n  }\n\n  /**\n   * Get the WISE IDs for a workgroup\n   * @param workgroupId get the WISE IDs for this workgroup\n   * @return an array of WISE IDs\n   */\n  getWISEIds(workgroupId) {\n    if (workgroupId != null) {\n      const userInfo = this.getUserInfoByWorkgroupId(workgroupId);\n      if (userInfo != null) {\n        return userInfo.userIds;\n      }\n    }\n    return [];\n  }\n\n  /**\n   * Get all the authorable projects\n   */\n  getAuthorableProjects() {\n    const ownedProjects = this.getConfigParam('projects');\n    const sharedProjects = this.getConfigParam('sharedProjects');\n    let authorableProjects = [];\n    if (ownedProjects != null) {\n      authorableProjects = authorableProjects.concat(ownedProjects);\n    }\n\n    if (sharedProjects != null) {\n      authorableProjects = authorableProjects.concat(sharedProjects);\n    }\n\n    // sort the projects by descending id\n    authorableProjects.sort(this.sortByProjectId);\n    return authorableProjects;\n  }\n\n  /**\n   * Determines whether the current user is logged in as somebody else\n   * @return true iff the user is a switched user\n   */\n  isSwitchedUser() {\n    let myUserInfo = this.getMyUserInfo();\n    if (myUserInfo != null) {\n      if (myUserInfo.isSwitchedUser) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Sort the objects by descending id.\n   * @param projectA an object with an id field\n   * @param projectB an object with an id field\n   * @return 1 if projectA comes before projectB\n   * -1 if projectA comes after projectB\n   * 0 if they are the same\n   */\n  sortByProjectId(projectA, projectB) {\n    const projectIdA = projectA.id;\n    const projectIdB = projectB.id;\n    if (projectIdA < projectIdB) {\n      return 1;\n    } else if (projectIdA > projectIdB) {\n      return -1;\n    } else {\n      return 0;\n    }\n  }\n}\n\nConfigService.$inject = [\n  '$filter',\n  '$http',\n  '$location'\n];\n\nexport default ConfigService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/services/planningService.es6 b/src/main/webapp/wise5/services/planningService.es6
new file mode 100644
index 0000000000..9520f73bc9
--- /dev/null
+++ b/src/main/webapp/wise5/services/planningService.es6
@@ -0,0 +1,129 @@
+'use strict';
+
+class PlanningService {
+  constructor(ProjectService) {
+    this.ProjectService = ProjectService;
+  };
+
+  getPlanningNodes() {
+    return this.ProjectService.project.planningNodes;
+  };
+
+  /**
+   * Check if a node is a planning node
+   * @param nodeId the node id
+   * @returns whether the node is a planning node
+   */
+  isPlanning(nodeId) {
+    const node = this.ProjectService.getNodeById(nodeId);
+    return node != null && node.planning;
+  }
+
+  /**
+   * Check if a node is a planning node instance
+   * @param nodeId the node id
+   * @returns whether the node is a planning node instance
+   */
+  isPlanningInstance(nodeId) {
+    const node = this.ProjectService.getNodeById(nodeId);
+    return node != null && node.planningNodeTemplateId;
+  }
+
+  /**
+   * Get the available planning nodes for a given group
+   * @param nodeId the node id of the group
+   * @returns an array of planning node templates
+   */
+  getAvailablePlanningNodes(nodeId) {
+    const availablePlanningNodesSoFar = [];
+    const node = this.ProjectService.getNodeById(nodeId);
+    if (node != null && node.availablePlanningNodes != null) {
+      const availablePlanningNodes = node.availablePlanningNodes;
+      for (let availablePlanningNode of availablePlanningNodes) {
+        const availablePlanningNodeActual =
+          this.ProjectService.getNodeById(availablePlanningNode.nodeId);
+        if (availablePlanningNodeActual != null) {
+          if (availablePlanningNode.max != null) {
+            availablePlanningNodeActual.max = availablePlanningNode.max;
+          }
+          availablePlanningNodesSoFar.push(availablePlanningNodeActual);
+        }
+      }
+    }
+    return availablePlanningNodesSoFar;
+  }
+
+  /**
+   * Create a planning node instance and add it to the project
+   * @param nodeId the node id of the planning node template
+   * @param nextAvailablePlanningNodeId the node id of the planning node instance
+   */
+  createPlanningNodeInstance(nodeId, nextAvailablePlanningNodeId) {
+    const planningNodeInstance = this.ProjectService.copyNode(nodeId);
+    planningNodeInstance.planningNodeTemplateId = nodeId;
+    planningNodeInstance.id = nextAvailablePlanningNodeId;
+    return planningNodeInstance;
+  }
+
+  /**
+   * Add a planning node instance inside a group node
+   * @param nodeIdToInsertInside the group id to insert into
+   * @param planningNodeInstance the planning node instance to add
+   */
+  addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance) {
+    const planningNodeInstanceNodeId = planningNodeInstance.id;
+    this.ProjectService.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);
+    this.ProjectService.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);
+    this.ProjectService.addNode(planningNodeInstance);
+    this.ProjectService.insertNodeInsideInTransitions(planningNodeInstanceNodeId, nodeIdToInsertInside);
+    this.ProjectService.insertNodeInsideInGroups(planningNodeInstanceNodeId, nodeIdToInsertInside);
+    this.ProjectService.recalculatePositionsInGroup(nodeIdToInsertInside);
+    this.ProjectService.calculateNodeOrderOfProject();
+  }
+
+  /**
+   * Add a planning node instance after a node
+   * @param nodeIdToInsertAfter the node to insert after
+   * @param planningNodeInstance the planning node instance to add
+   */
+  addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance) {
+    const planningNodeInstanceNodeId = planningNodeInstance.id;
+    this.ProjectService.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);
+    this.ProjectService.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);
+    this.ProjectService.addNode(planningNodeInstance);
+    this.ProjectService.insertNodeAfterInTransitions(planningNodeInstance, nodeIdToInsertAfter);
+    this.ProjectService.insertNodeAfterInGroups(planningNodeInstanceNodeId, nodeIdToInsertAfter);
+    const parentGroup = this.ProjectService.getParentGroup(nodeIdToInsertAfter);
+    this.ProjectService.recalculatePositionsInGroup(parentGroup.id);
+    this.ProjectService.calculateNodeOrderOfProject();
+  }
+
+  /**
+   * Move a planning node instance inside a group
+   * @param nodeIdToMove the node to move
+   * @param nodeIdToInsertInside the group to move the node into
+   */
+  movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToInsertInside) {
+    this.ProjectService.moveNodesInside([nodeIdToMove], nodeIdToInsertInside);
+    this.ProjectService.recalculatePositionsInGroup(nodeIdToInsertInside);
+    this.ProjectService.calculateNodeOrderOfProject();
+  }
+
+  /**
+   * Move a planning node instance after a node
+   * @param nodeIdToMove the node to move
+   * @param nodeIdToInsertAfter the other node to move the node after
+   */
+  movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToInsertAfter) {
+    this.ProjectService.moveNodesAfter([nodeIdToMove], nodeIdToInsertAfter);
+    const parentGroup = this.ProjectService.getParentGroup(nodeIdToInsertAfter);
+    this.ProjectService.recalculatePositionsInGroup(parentGroup.id);
+    this.ProjectService.calculateNodeOrderOfProject();
+  }
+}
+
+PlanningService.$inject = [
+  'ProjectService'
+];
+
+export default PlanningService;
diff --git a/src/main/webapp/wise5/services/planningService.js b/src/main/webapp/wise5/services/planningService.js
new file mode 100644
index 0000000000..353827dbf8
--- /dev/null
+++ b/src/main/webapp/wise5/services/planningService.js
@@ -0,0 +1,187 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var PlanningService = function () {
+  function PlanningService(ProjectService) {
+    _classCallCheck(this, PlanningService);
+
+    this.ProjectService = ProjectService;
+  }
+
+  _createClass(PlanningService, [{
+    key: 'getPlanningNodes',
+    value: function getPlanningNodes() {
+      return this.ProjectService.project.planningNodes;
+    }
+  }, {
+    key: 'isPlanning',
+
+
+    /**
+     * Check if a node is a planning node
+     * @param nodeId the node id
+     * @returns whether the node is a planning node
+     */
+    value: function isPlanning(nodeId) {
+      var node = this.ProjectService.getNodeById(nodeId);
+      return node != null && node.planning;
+    }
+
+    /**
+     * Check if a node is a planning node instance
+     * @param nodeId the node id
+     * @returns whether the node is a planning node instance
+     */
+
+  }, {
+    key: 'isPlanningInstance',
+    value: function isPlanningInstance(nodeId) {
+      var node = this.ProjectService.getNodeById(nodeId);
+      return node != null && node.planningNodeTemplateId;
+    }
+
+    /**
+     * Get the available planning nodes for a given group
+     * @param nodeId the node id of the group
+     * @returns an array of planning node templates
+     */
+
+  }, {
+    key: 'getAvailablePlanningNodes',
+    value: function getAvailablePlanningNodes(nodeId) {
+      var availablePlanningNodesSoFar = [];
+      var node = this.ProjectService.getNodeById(nodeId);
+      if (node != null && node.availablePlanningNodes != null) {
+        var availablePlanningNodes = node.availablePlanningNodes;
+        var _iteratorNormalCompletion = true;
+        var _didIteratorError = false;
+        var _iteratorError = undefined;
+
+        try {
+          for (var _iterator = availablePlanningNodes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+            var availablePlanningNode = _step.value;
+
+            var availablePlanningNodeActual = this.ProjectService.getNodeById(availablePlanningNode.nodeId);
+            if (availablePlanningNodeActual != null) {
+              if (availablePlanningNode.max != null) {
+                availablePlanningNodeActual.max = availablePlanningNode.max;
+              }
+              availablePlanningNodesSoFar.push(availablePlanningNodeActual);
+            }
+          }
+        } catch (err) {
+          _didIteratorError = true;
+          _iteratorError = err;
+        } finally {
+          try {
+            if (!_iteratorNormalCompletion && _iterator.return) {
+              _iterator.return();
+            }
+          } finally {
+            if (_didIteratorError) {
+              throw _iteratorError;
+            }
+          }
+        }
+      }
+      return availablePlanningNodesSoFar;
+    }
+
+    /**
+     * Create a planning node instance and add it to the project
+     * @param nodeId the node id of the planning node template
+     * @param nextAvailablePlanningNodeId the node id of the planning node instance
+     */
+
+  }, {
+    key: 'createPlanningNodeInstance',
+    value: function createPlanningNodeInstance(nodeId, nextAvailablePlanningNodeId) {
+      var planningNodeInstance = this.ProjectService.copyNode(nodeId);
+      planningNodeInstance.planningNodeTemplateId = nodeId;
+      planningNodeInstance.id = nextAvailablePlanningNodeId;
+      return planningNodeInstance;
+    }
+
+    /**
+     * Add a planning node instance inside a group node
+     * @param nodeIdToInsertInside the group id to insert into
+     * @param planningNodeInstance the planning node instance to add
+     */
+
+  }, {
+    key: 'addPlanningNodeInstanceInside',
+    value: function addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance) {
+      var planningNodeInstanceNodeId = planningNodeInstance.id;
+      this.ProjectService.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);
+      this.ProjectService.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);
+      this.ProjectService.addNode(planningNodeInstance);
+      this.ProjectService.insertNodeInsideInTransitions(planningNodeInstanceNodeId, nodeIdToInsertInside);
+      this.ProjectService.insertNodeInsideInGroups(planningNodeInstanceNodeId, nodeIdToInsertInside);
+      this.ProjectService.recalculatePositionsInGroup(nodeIdToInsertInside);
+      this.ProjectService.calculateNodeOrderOfProject();
+    }
+
+    /**
+     * Add a planning node instance after a node
+     * @param nodeIdToInsertAfter the node to insert after
+     * @param planningNodeInstance the planning node instance to add
+     */
+
+  }, {
+    key: 'addPlanningNodeInstanceAfter',
+    value: function addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance) {
+      var planningNodeInstanceNodeId = planningNodeInstance.id;
+      this.ProjectService.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);
+      this.ProjectService.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);
+      this.ProjectService.addNode(planningNodeInstance);
+      this.ProjectService.insertNodeAfterInTransitions(planningNodeInstance, nodeIdToInsertAfter);
+      this.ProjectService.insertNodeAfterInGroups(planningNodeInstanceNodeId, nodeIdToInsertAfter);
+      var parentGroup = this.ProjectService.getParentGroup(nodeIdToInsertAfter);
+      this.ProjectService.recalculatePositionsInGroup(parentGroup.id);
+      this.ProjectService.calculateNodeOrderOfProject();
+    }
+
+    /**
+     * Move a planning node instance inside a group
+     * @param nodeIdToMove the node to move
+     * @param nodeIdToInsertInside the group to move the node into
+     */
+
+  }, {
+    key: 'movePlanningNodeInstanceInside',
+    value: function movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToInsertInside) {
+      this.ProjectService.moveNodesInside([nodeIdToMove], nodeIdToInsertInside);
+      this.ProjectService.recalculatePositionsInGroup(nodeIdToInsertInside);
+      this.ProjectService.calculateNodeOrderOfProject();
+    }
+
+    /**
+     * Move a planning node instance after a node
+     * @param nodeIdToMove the node to move
+     * @param nodeIdToInsertAfter the other node to move the node after
+     */
+
+  }, {
+    key: 'movePlanningNodeInstanceAfter',
+    value: function movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToInsertAfter) {
+      this.ProjectService.moveNodesAfter([nodeIdToMove], nodeIdToInsertAfter);
+      var parentGroup = this.ProjectService.getParentGroup(nodeIdToInsertAfter);
+      this.ProjectService.recalculatePositionsInGroup(parentGroup.id);
+      this.ProjectService.calculateNodeOrderOfProject();
+    }
+  }]);
+
+  return PlanningService;
+}();
+
+PlanningService.$inject = ['ProjectService'];
+
+exports.default = PlanningService;
+//# sourceMappingURL=planningService.js.map
diff --git a/src/main/webapp/wise5/services/planningService.js.map b/src/main/webapp/wise5/services/planningService.js.map
new file mode 100644
index 0000000000..131725ceb1
--- /dev/null
+++ b/src/main/webapp/wise5/services/planningService.js.map
@@ -0,0 +1 @@
+{"version":3,"sources":["planningService.es6"],"names":["PlanningService","ProjectService","project","planningNodes","nodeId","node","getNodeById","planning","planningNodeTemplateId","availablePlanningNodesSoFar","availablePlanningNodes","availablePlanningNode","availablePlanningNodeActual","max","push","nextAvailablePlanningNodeId","planningNodeInstance","copyNode","id","nodeIdToInsertInside","planningNodeInstanceNodeId","setIdToNode","setIdToElement","addNode","insertNodeInsideInTransitions","insertNodeInsideInGroups","recalculatePositionsInGroup","calculateNodeOrderOfProject","nodeIdToInsertAfter","insertNodeAfterInTransitions","insertNodeAfterInGroups","parentGroup","getParentGroup","nodeIdToMove","moveNodesInside","moveNodesAfter","$inject"],"mappings":"AAAA;;;;;;;;;;IAEMA,e;AACJ,2BAAYC,cAAZ,EAA4B;AAAA;;AAC1B,SAAKA,cAAL,GAAsBA,cAAtB;AACD;;;;uCAEkB;AACjB,aAAO,KAAKA,cAAL,CAAoBC,OAApB,CAA4BC,aAAnC;AACD;;;;;AAED;;;;;+BAKWC,M,EAAQ;AACjB,UAAMC,OAAO,KAAKJ,cAAL,CAAoBK,WAApB,CAAgCF,MAAhC,CAAb;AACA,aAAOC,QAAQ,IAAR,IAAgBA,KAAKE,QAA5B;AACD;;AAED;;;;;;;;uCAKmBH,M,EAAQ;AACzB,UAAMC,OAAO,KAAKJ,cAAL,CAAoBK,WAApB,CAAgCF,MAAhC,CAAb;AACA,aAAOC,QAAQ,IAAR,IAAgBA,KAAKG,sBAA5B;AACD;;AAED;;;;;;;;8CAK0BJ,M,EAAQ;AAChC,UAAMK,8BAA8B,EAApC;AACA,UAAMJ,OAAO,KAAKJ,cAAL,CAAoBK,WAApB,CAAgCF,MAAhC,CAAb;AACA,UAAIC,QAAQ,IAAR,IAAgBA,KAAKK,sBAAL,IAA+B,IAAnD,EAAyD;AACvD,YAAMA,yBAAyBL,KAAKK,sBAApC;AADuD;AAAA;AAAA;;AAAA;AAEvD,+BAAkCA,sBAAlC,8HAA0D;AAAA,gBAAjDC,qBAAiD;;AACxD,gBAAMC,8BACJ,KAAKX,cAAL,CAAoBK,WAApB,CAAgCK,sBAAsBP,MAAtD,CADF;AAEA,gBAAIQ,+BAA+B,IAAnC,EAAyC;AACvC,kBAAID,sBAAsBE,GAAtB,IAA6B,IAAjC,EAAuC;AACrCD,4CAA4BC,GAA5B,GAAkCF,sBAAsBE,GAAxD;AACD;AACDJ,0CAA4BK,IAA5B,CAAiCF,2BAAjC;AACD;AACF;AAXsD;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAYxD;AACD,aAAOH,2BAAP;AACD;;AAED;;;;;;;;+CAK2BL,M,EAAQW,2B,EAA6B;AAC9D,UAAMC,uBAAuB,KAAKf,cAAL,CAAoBgB,QAApB,CAA6Bb,MAA7B,CAA7B;AACAY,2BAAqBR,sBAArB,GAA8CJ,MAA9C;AACAY,2BAAqBE,EAArB,GAA0BH,2BAA1B;AACA,aAAOC,oBAAP;AACD;;AAED;;;;;;;;kDAK8BG,oB,EAAsBH,oB,EAAsB;AACxE,UAAMI,6BAA6BJ,qBAAqBE,EAAxD;AACA,WAAKjB,cAAL,CAAoBoB,WAApB,CAAgCD,0BAAhC,EAA4DJ,oBAA5D;AACA,WAAKf,cAAL,CAAoBqB,cAApB,CAAmCF,0BAAnC,EAA+DJ,oBAA/D;AACA,WAAKf,cAAL,CAAoBsB,OAApB,CAA4BP,oBAA5B;AACA,WAAKf,cAAL,CAAoBuB,6BAApB,CAAkDJ,0BAAlD,EAA8ED,oBAA9E;AACA,WAAKlB,cAAL,CAAoBwB,wBAApB,CAA6CL,0BAA7C,EAAyED,oBAAzE;AACA,WAAKlB,cAAL,CAAoByB,2BAApB,CAAgDP,oBAAhD;AACA,WAAKlB,cAAL,CAAoB0B,2BAApB;AACD;;AAED;;;;;;;;iDAK6BC,mB,EAAqBZ,oB,EAAsB;AACtE,UAAMI,6BAA6BJ,qBAAqBE,EAAxD;AACA,WAAKjB,cAAL,CAAoBoB,WAApB,CAAgCD,0BAAhC,EAA4DJ,oBAA5D;AACA,WAAKf,cAAL,CAAoBqB,cAApB,CAAmCF,0BAAnC,EAA+DJ,oBAA/D;AACA,WAAKf,cAAL,CAAoBsB,OAApB,CAA4BP,oBAA5B;AACA,WAAKf,cAAL,CAAoB4B,4BAApB,CAAiDb,oBAAjD,EAAuEY,mBAAvE;AACA,WAAK3B,cAAL,CAAoB6B,uBAApB,CAA4CV,0BAA5C,EAAwEQ,mBAAxE;AACA,UAAMG,cAAc,KAAK9B,cAAL,CAAoB+B,cAApB,CAAmCJ,mBAAnC,CAApB;AACA,WAAK3B,cAAL,CAAoByB,2BAApB,CAAgDK,YAAYb,EAA5D;AACA,WAAKjB,cAAL,CAAoB0B,2BAApB;AACD;;AAED;;;;;;;;mDAK+BM,Y,EAAcd,oB,EAAsB;AACjE,WAAKlB,cAAL,CAAoBiC,eAApB,CAAoC,CAACD,YAAD,CAApC,EAAoDd,oBAApD;AACA,WAAKlB,cAAL,CAAoByB,2BAApB,CAAgDP,oBAAhD;AACA,WAAKlB,cAAL,CAAoB0B,2BAApB;AACD;;AAED;;;;;;;;kDAK8BM,Y,EAAcL,mB,EAAqB;AAC/D,WAAK3B,cAAL,CAAoBkC,cAApB,CAAmC,CAACF,YAAD,CAAnC,EAAmDL,mBAAnD;AACA,UAAMG,cAAc,KAAK9B,cAAL,CAAoB+B,cAApB,CAAmCJ,mBAAnC,CAApB;AACA,WAAK3B,cAAL,CAAoByB,2BAApB,CAAgDK,YAAYb,EAA5D;AACA,WAAKjB,cAAL,CAAoB0B,2BAApB;AACD;;;;;;AAGH3B,gBAAgBoC,OAAhB,GAA0B,CACxB,gBADwB,CAA1B;;kBAIepC,e","file":"planningService.js","sourcesContent":["'use strict';\n\nclass PlanningService {\n  constructor(ProjectService) {\n    this.ProjectService = ProjectService;\n  };\n\n  getPlanningNodes() {\n    return this.ProjectService.project.planningNodes;\n  };\n\n  /**\n   * Check if a node is a planning node\n   * @param nodeId the node id\n   * @returns whether the node is a planning node\n   */\n  isPlanning(nodeId) {\n    const node = this.ProjectService.getNodeById(nodeId);\n    return node != null && node.planning;\n  }\n\n  /**\n   * Check if a node is a planning node instance\n   * @param nodeId the node id\n   * @returns whether the node is a planning node instance\n   */\n  isPlanningInstance(nodeId) {\n    const node = this.ProjectService.getNodeById(nodeId);\n    return node != null && node.planningNodeTemplateId;\n  }\n\n  /**\n   * Get the available planning nodes for a given group\n   * @param nodeId the node id of the group\n   * @returns an array of planning node templates\n   */\n  getAvailablePlanningNodes(nodeId) {\n    const availablePlanningNodesSoFar = [];\n    const node = this.ProjectService.getNodeById(nodeId);\n    if (node != null && node.availablePlanningNodes != null) {\n      const availablePlanningNodes = node.availablePlanningNodes;\n      for (let availablePlanningNode of availablePlanningNodes) {\n        const availablePlanningNodeActual =\n          this.ProjectService.getNodeById(availablePlanningNode.nodeId);\n        if (availablePlanningNodeActual != null) {\n          if (availablePlanningNode.max != null) {\n            availablePlanningNodeActual.max = availablePlanningNode.max;\n          }\n          availablePlanningNodesSoFar.push(availablePlanningNodeActual);\n        }\n      }\n    }\n    return availablePlanningNodesSoFar;\n  }\n\n  /**\n   * Create a planning node instance and add it to the project\n   * @param nodeId the node id of the planning node template\n   * @param nextAvailablePlanningNodeId the node id of the planning node instance\n   */\n  createPlanningNodeInstance(nodeId, nextAvailablePlanningNodeId) {\n    const planningNodeInstance = this.ProjectService.copyNode(nodeId);\n    planningNodeInstance.planningNodeTemplateId = nodeId;\n    planningNodeInstance.id = nextAvailablePlanningNodeId;\n    return planningNodeInstance;\n  }\n\n  /**\n   * Add a planning node instance inside a group node\n   * @param nodeIdToInsertInside the group id to insert into\n   * @param planningNodeInstance the planning node instance to add\n   */\n  addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance) {\n    const planningNodeInstanceNodeId = planningNodeInstance.id;\n    this.ProjectService.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);\n    this.ProjectService.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);\n    this.ProjectService.addNode(planningNodeInstance);\n    this.ProjectService.insertNodeInsideInTransitions(planningNodeInstanceNodeId, nodeIdToInsertInside);\n    this.ProjectService.insertNodeInsideInGroups(planningNodeInstanceNodeId, nodeIdToInsertInside);\n    this.ProjectService.recalculatePositionsInGroup(nodeIdToInsertInside);\n    this.ProjectService.calculateNodeOrderOfProject();\n  }\n\n  /**\n   * Add a planning node instance after a node\n   * @param nodeIdToInsertAfter the node to insert after\n   * @param planningNodeInstance the planning node instance to add\n   */\n  addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance) {\n    const planningNodeInstanceNodeId = planningNodeInstance.id;\n    this.ProjectService.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);\n    this.ProjectService.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);\n    this.ProjectService.addNode(planningNodeInstance);\n    this.ProjectService.insertNodeAfterInTransitions(planningNodeInstance, nodeIdToInsertAfter);\n    this.ProjectService.insertNodeAfterInGroups(planningNodeInstanceNodeId, nodeIdToInsertAfter);\n    const parentGroup = this.ProjectService.getParentGroup(nodeIdToInsertAfter);\n    this.ProjectService.recalculatePositionsInGroup(parentGroup.id);\n    this.ProjectService.calculateNodeOrderOfProject();\n  }\n\n  /**\n   * Move a planning node instance inside a group\n   * @param nodeIdToMove the node to move\n   * @param nodeIdToInsertInside the group to move the node into\n   */\n  movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToInsertInside) {\n    this.ProjectService.moveNodesInside([nodeIdToMove], nodeIdToInsertInside);\n    this.ProjectService.recalculatePositionsInGroup(nodeIdToInsertInside);\n    this.ProjectService.calculateNodeOrderOfProject();\n  }\n\n  /**\n   * Move a planning node instance after a node\n   * @param nodeIdToMove the node to move\n   * @param nodeIdToInsertAfter the other node to move the node after\n   */\n  movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToInsertAfter) {\n    this.ProjectService.moveNodesAfter([nodeIdToMove], nodeIdToInsertAfter);\n    const parentGroup = this.ProjectService.getParentGroup(nodeIdToInsertAfter);\n    this.ProjectService.recalculatePositionsInGroup(parentGroup.id);\n    this.ProjectService.calculateNodeOrderOfProject();\n  }\n}\n\nPlanningService.$inject = [\n  'ProjectService'\n];\n\nexport default PlanningService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/services/projectService.es6 b/src/main/webapp/wise5/services/projectService.es6
index ba720d9fde..c36a6321dc 100644
--- a/src/main/webapp/wise5/services/projectService.es6
+++ b/src/main/webapp/wise5/services/projectService.es6
@@ -114,14 +114,6 @@ class ProjectService {
     return null;
   };
 
-  getPlanningNodes() {
-    const project = this.project;
-    if (project != null) {
-      return project.planningNodes;
-    }
-    return null;
-  };
-
   getChildNodeIdsById(nodeId) {
     const node = this.getNodeById(nodeId);
     if (node.ids) {
@@ -337,7 +329,7 @@ class ProjectService {
       }
 
       this.rootNode = this.getRootNode(nodes[0].id);
-      this.setNodeOrder(this.rootNode, this.nodeCount);
+      this.calculateNodeOrderOfProject();
 
       let n = nodes.length;
       const branches = this.getBranches();
@@ -383,25 +375,22 @@ class ProjectService {
     this.$rootScope.$broadcast('projectChanged');
   };
 
-  setNodeOrder(node) {
+  calculateNodeOrderOfProject() {
+    this.calculateNodeOrder(this.rootNode);
+  }
+
+  /**
+   * Recursively calculates the node order.
+   * @param node
+   */
+  calculateNodeOrder(node) {
     this.idToOrder[node.id] = {'order': this.nodeCount};
     this.nodeCount++;
     if (this.isGroupNode(node.id)) {
-      let childIds = node.ids;
+      const childIds = node.ids;
       for (let childId of childIds) {
-        let child = this.getNodeById(childId);
-        this.setNodeOrder(child);
-      }
-
-      if (this.ConfigService.getMode() === 'classroomMonitor') {
-        // we're viewing the classroom monitor, so include planning nodes in the project structure
-        let planningIds = node.availablePlanningNodes;
-        if (planningIds) {
-          for (let planningId of planningIds) {
-            let child = this.getNodeById(planningId.nodeId);
-            this.setNodeOrder(child);
-          }
-        }
+        const child = this.getNodeById(childId);
+        this.calculateNodeOrder(child);
       }
     }
   };
@@ -4477,206 +4466,6 @@ class ProjectService {
     }
   }
 
-  /**
-   * Check if a node is a planning node
-   * @param nodeId the node id
-   * @returns whether the node is a planning node
-   */
-  isPlanning(nodeId) {
-    if (nodeId != null) {
-      const node = this.getNodeById(nodeId);
-      if (node != null) {
-        if (node.planning) {
-          return true;
-        }
-      }
-    }
-    return false;
-  }
-
-  /**
-   * Check if a node is a planning node instance
-   * @param nodeId the node id
-   * @returns whether the node is a planning node instance
-   */
-  isPlanningInstance(nodeId) {
-    if (nodeId != null) {
-      const node = this.getNodeById(nodeId);
-      if (node.planningNodeTemplateId) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  /**
-   * Get the available planning node ids for a node
-   * @param nodeId the node we want available planning nodes for
-   * @returns an array of available planning node ids
-   */
-  getAvailablePlanningNodeIds(nodeId) {
-    if (nodeId != null) {
-      const node = this.getNodeById(nodeId);
-      if (node != null && node.availablePlanningNodeIds != null) {
-        return node.availablePlanningNodeIds;
-      }
-    }
-    return [];
-  }
-
-  /**
-   * Get the available planning nodes for a given group
-   * @param nodeId the node id of the group
-   * @returns an array of planning node templates
-   */
-  getAvailablePlanningNodes(nodeId) {
-    const availablePlanningNodesSoFar = [];
-    if (nodeId != null) {
-      const node = this.getNodeById(nodeId);
-      if (node != null && node.availablePlanningNodes != null) {
-        let availablePlanningNodes = node.availablePlanningNodes;
-        for (let availablePlanningNode of availablePlanningNodes) {
-          if (availablePlanningNode != null) {
-            const availablePlanningNodeActual =
-                this.getNodeById(availablePlanningNode.nodeId);
-            if (availablePlanningNodeActual != null) {
-              if (availablePlanningNode.max != null) {
-                availablePlanningNodeActual.max = availablePlanningNode.max;
-              }
-              availablePlanningNodesSoFar.push(availablePlanningNodeActual);
-            }
-          }
-        }
-      }
-    }
-    return availablePlanningNodesSoFar;
-  }
-
-  /**
-   * Create a planning node instance and add it to the project
-   * @param groupId the group id to add the planning node instance to
-   * @param nodeId the node id of the planning node template
-   */
-  createPlanningNodeInstance(groupId, nodeId, nextAvailablePlanningNodeId) {
-    let planningNodeInstance = null;
-    if (nodeId != null && nextAvailablePlanningNodeId != null) {
-      // create a planning node instance by copying the planning node template
-      planningNodeInstance = this.copyNode(nodeId);
-
-      // set the template id to point back to the planning template node
-      planningNodeInstance.planningNodeTemplateId = nodeId;
-
-      // set the planning node instance node id
-      planningNodeInstance.id = nextAvailablePlanningNodeId;
-    }
-    return planningNodeInstance;
-  }
-
-  /**
-   * Add a planning node instance inside a group node
-   * @param nodeIdToInsertInside the group id to insert into
-   * @param planningNodeInstance the planning node instance to add
-   */
-  addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance) {
-    const planningNodeInstanceNodeId = planningNodeInstance.id;
-
-    // add an entry in our mapping data structures of node id to object
-    this.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);
-    this.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);
-
-    // add the node to the nodes array in the project
-    this.addNode(planningNodeInstance);
-
-    // update the transitions
-    this.insertNodeInsideInTransitions(planningNodeInstanceNodeId, nodeIdToInsertInside);
-
-    // update the child ids of the group
-    this.insertNodeInsideInGroups(planningNodeInstanceNodeId, nodeIdToInsertInside);
-
-    // recalculate all the position values in the group
-    this.recalculatePositionsInGroup(nodeIdToInsertInside);
-
-    /*
-     * set the order of the planning node instance so that it shows up
-     * in the select step drop down in the correct order
-     */
-    this.setNodeOrder(this.rootNode, 0);
-  }
-
-  /**
-   * Add a planning node instance after a node
-   * @param nodeIdToInsertAfter the node to insert after
-   * @param planningNodeInstance the planning node instance to add
-   */
-  addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance) {
-    const planningNodeInstanceNodeId = planningNodeInstance.id;
-
-    // add an entry in our mapping data structures of node id to object
-    this.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);
-    this.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);
-
-    // add the node to the nodes array in the project
-    this.addNode(planningNodeInstance);
-
-    // update the transitions
-    this.insertNodeAfterInTransitions(planningNodeInstance, nodeIdToInsertAfter);
-
-    // update the child ids of the group
-    this.insertNodeAfterInGroups(planningNodeInstanceNodeId, nodeIdToInsertAfter);
-
-    const parentGroup = this.getParentGroup(nodeIdToInsertAfter);
-
-    if (parentGroup != null) {
-      const parentGroupId = parentGroup.id;
-
-      // recalculate all the position values in the group
-      this.recalculatePositionsInGroup(parentGroupId);
-    }
-
-    /*
-     * set the order of the planning node instance so that it shows up
-     * in the select step drop down in the correct order
-     */
-    this.setNodeOrder(this.rootNode, 0);
-  }
-
-  /**
-   * Move a planning node instance inside a group
-   * @param nodeIdToMove the node to move
-   * @param nodeIdToInsertInside the group to move the node into
-   */
-  movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToInsertInside) {
-    this.moveNodesInside([nodeIdToMove], nodeIdToInsertInside);
-    this.recalculatePositionsInGroup(nodeIdToInsertInside);
-
-    /*
-     * set the order of the planning node instance so that it shows up
-     * in the select step drop down in the correct order
-     */
-    this.setNodeOrder(this.rootNode, 0);
-  }
-
-  /**
-   * Move a planning node instance after a node
-   * @param nodeIdToMove the node to move
-   * @param nodeIdToInsertAfter the other node to move the node after
-   */
-  movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToInsertAfter) {
-    this.moveNodesAfter([nodeIdToMove], nodeIdToInsertAfter);
-    const parentGroup = this.getParentGroup(nodeIdToInsertAfter);
-
-    if (parentGroup != null) {
-      const parentGroupId = parentGroup.id;
-      this.recalculatePositionsInGroup(parentGroupId);
-    }
-
-    /*
-     * set the order of the planning node instance so that it shows up
-     * in the select step drop down in the correct order
-     */
-    this.setNodeOrder(this.rootNode, 0);
-  }
-
   /**
    * Recalculate the positions of the children in the group.
    * The positions are the numbers usually seen before the title
diff --git a/src/main/webapp/wise5/services/projectService.js b/src/main/webapp/wise5/services/projectService.js
index 7405043c68..bc6f15d6e8 100644
--- a/src/main/webapp/wise5/services/projectService.js
+++ b/src/main/webapp/wise5/services/projectService.js
@@ -51,10 +51,10 @@ var ProjectService = function () {
     this.additionalProcessingFunctionsMap = {};
 
     // filtering options for navigation displays
-    this.filters = [{ 'name': 'all', 'label': 'All' }
-    //{'name': 'todo', 'label': 'Todo'},
-    //{'name': 'completed', 'label': 'Completed'}
-    ];
+    this.filters = [{ 'name': 'all', 'label': 'All'
+      //{'name': 'todo', 'label': 'Todo'},
+      //{'name': 'completed', 'label': 'Completed'}
+    }];
   }
 
   _createClass(ProjectService, [{
@@ -141,15 +141,6 @@ var ProjectService = function () {
       }
       return null;
     }
-  }, {
-    key: 'getPlanningNodes',
-    value: function getPlanningNodes() {
-      var project = this.project;
-      if (project != null) {
-        return project.planningNodes;
-      }
-      return null;
-    }
   }, {
     key: 'getChildNodeIdsById',
     value: function getChildNodeIdsById(nodeId) {
@@ -494,7 +485,7 @@ var ProjectService = function () {
         }
 
         this.rootNode = this.getRootNode(nodes[0].id);
-        this.setNodeOrder(this.rootNode, this.nodeCount);
+        this.calculateNodeOrderOfProject();
 
         var n = nodes.length;
         var branches = this.getBranches();
@@ -541,8 +532,19 @@ var ProjectService = function () {
       this.$rootScope.$broadcast('projectChanged');
     }
   }, {
-    key: 'setNodeOrder',
-    value: function setNodeOrder(node) {
+    key: 'calculateNodeOrderOfProject',
+    value: function calculateNodeOrderOfProject() {
+      this.calculateNodeOrder(this.rootNode);
+    }
+
+    /**
+     * Recursively calculates the node order.
+     * @param node
+     */
+
+  }, {
+    key: 'calculateNodeOrder',
+    value: function calculateNodeOrder(node) {
       this.idToOrder[node.id] = { 'order': this.nodeCount };
       this.nodeCount++;
       if (this.isGroupNode(node.id)) {
@@ -555,8 +557,8 @@ var ProjectService = function () {
           for (var _iterator6 = childIds[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
             var childId = _step6.value;
 
-            var _child = this.getNodeById(childId);
-            this.setNodeOrder(_child);
+            var child = this.getNodeById(childId);
+            this.calculateNodeOrder(child);
           }
         } catch (err) {
           _didIteratorError6 = true;
@@ -572,38 +574,6 @@ var ProjectService = function () {
             }
           }
         }
-
-        if (this.ConfigService.getMode() === 'classroomMonitor') {
-          // we're viewing the classroom monitor, so include planning nodes in the project structure
-          var planningIds = node.availablePlanningNodes;
-          if (planningIds) {
-            var _iteratorNormalCompletion7 = true;
-            var _didIteratorError7 = false;
-            var _iteratorError7 = undefined;
-
-            try {
-              for (var _iterator7 = planningIds[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-                var planningId = _step7.value;
-
-                var child = this.getNodeById(planningId.nodeId);
-                this.setNodeOrder(child);
-              }
-            } catch (err) {
-              _didIteratorError7 = true;
-              _iteratorError7 = err;
-            } finally {
-              try {
-                if (!_iteratorNormalCompletion7 && _iterator7.return) {
-                  _iterator7.return();
-                }
-              } finally {
-                if (_didIteratorError7) {
-                  throw _iteratorError7;
-                }
-              }
-            }
-          }
-        }
       }
     }
   }, {
@@ -789,13 +759,13 @@ var ProjectService = function () {
       } else if (node.type === 'group') {
         var num = 0;
         var branches = this.getBranches();
-        var _iteratorNormalCompletion8 = true;
-        var _didIteratorError8 = false;
-        var _iteratorError8 = undefined;
+        var _iteratorNormalCompletion7 = true;
+        var _didIteratorError7 = false;
+        var _iteratorError7 = undefined;
 
         try {
-          for (var _iterator8 = node.ids[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
-            var nodeId = _step8.value;
+          for (var _iterator7 = node.ids[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
+            var nodeId = _step7.value;
 
             if (this.isNodeIdInABranch(branches, nodeId)) {
               this.getBranchNodePositionById(nodeId);
@@ -808,16 +778,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError8 = true;
-          _iteratorError8 = err;
+          _didIteratorError7 = true;
+          _iteratorError7 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion8 && _iterator8.return) {
-              _iterator8.return();
+            if (!_iteratorNormalCompletion7 && _iterator7.return) {
+              _iterator7.return();
             }
           } finally {
-            if (_didIteratorError8) {
-              throw _iteratorError8;
+            if (_didIteratorError7) {
+              throw _iteratorError7;
             }
           }
         }
@@ -844,15 +814,15 @@ var ProjectService = function () {
     value: function getNodeIdByOrder(order) {
       var id = null;
       if (order != null) {
-        var _iteratorNormalCompletion9 = true;
-        var _didIteratorError9 = false;
-        var _iteratorError9 = undefined;
+        var _iteratorNormalCompletion8 = true;
+        var _didIteratorError8 = false;
+        var _iteratorError8 = undefined;
 
         try {
-          for (var _iterator9 = Object.entries(this.idToOrder)[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
-            var _step9$value = _slicedToArray(_step9.value, 2),
-                nodeId = _step9$value[0],
-                value = _step9$value[1];
+          for (var _iterator8 = Object.entries(this.idToOrder)[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
+            var _step8$value = _slicedToArray(_step8.value, 2),
+                nodeId = _step8$value[0],
+                value = _step8$value[1];
 
             if (value.order === order) {
               id = nodeId;
@@ -860,16 +830,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError9 = true;
-          _iteratorError9 = err;
+          _didIteratorError8 = true;
+          _iteratorError8 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion9 && _iterator9.return) {
-              _iterator9.return();
+            if (!_iteratorNormalCompletion8 && _iterator8.return) {
+              _iterator8.return();
             }
           } finally {
-            if (_didIteratorError9) {
-              throw _iteratorError9;
+            if (_didIteratorError8) {
+              throw _iteratorError8;
             }
           }
         }
@@ -1062,56 +1032,56 @@ var ProjectService = function () {
          * the project argument is not null so we will get the node from
          * project that was passed in
          */
-        var _iteratorNormalCompletion10 = true;
-        var _didIteratorError10 = false;
-        var _iteratorError10 = undefined;
+        var _iteratorNormalCompletion9 = true;
+        var _didIteratorError9 = false;
+        var _iteratorError9 = undefined;
 
         try {
-          for (var _iterator10 = project.nodes[Symbol.iterator](), _step10; !(_iteratorNormalCompletion10 = (_step10 = _iterator10.next()).done); _iteratorNormalCompletion10 = true) {
-            var tempNode = _step10.value;
+          for (var _iterator9 = project.nodes[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
+            var tempNode = _step9.value;
 
             if (tempNode != null && tempNode.id == nodeId) {
               return tempNode;
             }
           }
         } catch (err) {
-          _didIteratorError10 = true;
-          _iteratorError10 = err;
+          _didIteratorError9 = true;
+          _iteratorError9 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion10 && _iterator10.return) {
-              _iterator10.return();
+            if (!_iteratorNormalCompletion9 && _iterator9.return) {
+              _iterator9.return();
             }
           } finally {
-            if (_didIteratorError10) {
-              throw _iteratorError10;
+            if (_didIteratorError9) {
+              throw _iteratorError9;
             }
           }
         }
 
-        var _iteratorNormalCompletion11 = true;
-        var _didIteratorError11 = false;
-        var _iteratorError11 = undefined;
+        var _iteratorNormalCompletion10 = true;
+        var _didIteratorError10 = false;
+        var _iteratorError10 = undefined;
 
         try {
-          for (var _iterator11 = project.inactiveNodes[Symbol.iterator](), _step11; !(_iteratorNormalCompletion11 = (_step11 = _iterator11.next()).done); _iteratorNormalCompletion11 = true) {
-            var _tempNode = _step11.value;
+          for (var _iterator10 = project.inactiveNodes[Symbol.iterator](), _step10; !(_iteratorNormalCompletion10 = (_step10 = _iterator10.next()).done); _iteratorNormalCompletion10 = true) {
+            var _tempNode = _step10.value;
 
             if (_tempNode != null && _tempNode.id == nodeId) {
               return _tempNode;
             }
           }
         } catch (err) {
-          _didIteratorError11 = true;
-          _iteratorError11 = err;
+          _didIteratorError10 = true;
+          _iteratorError10 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion11 && _iterator11.return) {
-              _iterator11.return();
+            if (!_iteratorNormalCompletion10 && _iterator10.return) {
+              _iterator10.return();
             }
           } finally {
-            if (_didIteratorError11) {
-              throw _iteratorError11;
+            if (_didIteratorError10) {
+              throw _iteratorError10;
             }
           }
         }
@@ -1196,13 +1166,13 @@ var ProjectService = function () {
         if (node != null) {
           // Check if the node is a child of an active group.
           var groupNodes = this.getGroupNodes();
-          var _iteratorNormalCompletion12 = true;
-          var _didIteratorError12 = false;
-          var _iteratorError12 = undefined;
+          var _iteratorNormalCompletion11 = true;
+          var _didIteratorError11 = false;
+          var _iteratorError11 = undefined;
 
           try {
-            for (var _iterator12 = groupNodes[Symbol.iterator](), _step12; !(_iteratorNormalCompletion12 = (_step12 = _iterator12.next()).done); _iteratorNormalCompletion12 = true) {
-              var groupNode = _step12.value;
+            for (var _iterator11 = groupNodes[Symbol.iterator](), _step11; !(_iteratorNormalCompletion11 = (_step11 = _iterator11.next()).done); _iteratorNormalCompletion11 = true) {
+              var groupNode = _step11.value;
 
               if (this.isNodeDirectChildOfGroup(node, groupNode)) {
                 return groupNode;
@@ -1211,44 +1181,44 @@ var ProjectService = function () {
 
             // Check if the node is a child of an inactive group.
           } catch (err) {
-            _didIteratorError12 = true;
-            _iteratorError12 = err;
+            _didIteratorError11 = true;
+            _iteratorError11 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion12 && _iterator12.return) {
-                _iterator12.return();
+              if (!_iteratorNormalCompletion11 && _iterator11.return) {
+                _iterator11.return();
               }
             } finally {
-              if (_didIteratorError12) {
-                throw _iteratorError12;
+              if (_didIteratorError11) {
+                throw _iteratorError11;
               }
             }
           }
 
           var inactiveGroupNodes = this.getInactiveGroupNodes();
-          var _iteratorNormalCompletion13 = true;
-          var _didIteratorError13 = false;
-          var _iteratorError13 = undefined;
+          var _iteratorNormalCompletion12 = true;
+          var _didIteratorError12 = false;
+          var _iteratorError12 = undefined;
 
           try {
-            for (var _iterator13 = inactiveGroupNodes[Symbol.iterator](), _step13; !(_iteratorNormalCompletion13 = (_step13 = _iterator13.next()).done); _iteratorNormalCompletion13 = true) {
-              var inactiveGroupNode = _step13.value;
+            for (var _iterator12 = inactiveGroupNodes[Symbol.iterator](), _step12; !(_iteratorNormalCompletion12 = (_step12 = _iterator12.next()).done); _iteratorNormalCompletion12 = true) {
+              var inactiveGroupNode = _step12.value;
 
               if (this.isNodeDirectChildOfGroup(node, inactiveGroupNode)) {
                 return inactiveGroupNode;
               }
             }
           } catch (err) {
-            _didIteratorError13 = true;
-            _iteratorError13 = err;
+            _didIteratorError12 = true;
+            _iteratorError12 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion13 && _iterator13.return) {
-                _iterator13.return();
+              if (!_iteratorNormalCompletion12 && _iterator12.return) {
+                _iterator12.return();
               }
             } finally {
-              if (_didIteratorError13) {
-                throw _iteratorError13;
+              if (_didIteratorError12) {
+                throw _iteratorError12;
               }
             }
           }
@@ -1332,13 +1302,13 @@ var ProjectService = function () {
         var childIds = group.ids;
         if (childIds != null) {
           descendents = childIds;
-          var _iteratorNormalCompletion14 = true;
-          var _didIteratorError14 = false;
-          var _iteratorError14 = undefined;
+          var _iteratorNormalCompletion13 = true;
+          var _didIteratorError13 = false;
+          var _iteratorError13 = undefined;
 
           try {
-            for (var _iterator14 = childIds[Symbol.iterator](), _step14; !(_iteratorNormalCompletion14 = (_step14 = _iterator14.next()).done); _iteratorNormalCompletion14 = true) {
-              var childId = _step14.value;
+            for (var _iterator13 = childIds[Symbol.iterator](), _step13; !(_iteratorNormalCompletion13 = (_step13 = _iterator13.next()).done); _iteratorNormalCompletion13 = true) {
+              var childId = _step13.value;
 
               var node = this.getNodeById(childId);
               if (node != null) {
@@ -1347,16 +1317,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError14 = true;
-            _iteratorError14 = err;
+            _didIteratorError13 = true;
+            _iteratorError13 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion14 && _iterator14.return) {
-                _iterator14.return();
+              if (!_iteratorNormalCompletion13 && _iterator13.return) {
+                _iterator13.return();
               }
             } finally {
-              if (_didIteratorError14) {
-                throw _iteratorError14;
+              if (_didIteratorError13) {
+                throw _iteratorError13;
               }
             }
           }
@@ -1376,13 +1346,13 @@ var ProjectService = function () {
         }
 
         var groups = this.getGroups();
-        var _iteratorNormalCompletion15 = true;
-        var _didIteratorError15 = false;
-        var _iteratorError15 = undefined;
+        var _iteratorNormalCompletion14 = true;
+        var _didIteratorError14 = false;
+        var _iteratorError14 = undefined;
 
         try {
-          for (var _iterator15 = groups[Symbol.iterator](), _step15; !(_iteratorNormalCompletion15 = (_step15 = _iterator15.next()).done); _iteratorNormalCompletion15 = true) {
-            var group = _step15.value;
+          for (var _iterator14 = groups[Symbol.iterator](), _step14; !(_iteratorNormalCompletion14 = (_step14 = _iterator14.next()).done); _iteratorNormalCompletion14 = true) {
+            var group = _step14.value;
 
             if (group != null) {
               var groupStartId = group.startId;
@@ -1393,16 +1363,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError15 = true;
-          _iteratorError15 = err;
+          _didIteratorError14 = true;
+          _iteratorError14 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion15 && _iterator15.return) {
-              _iterator15.return();
+            if (!_iteratorNormalCompletion14 && _iterator14.return) {
+              _iterator14.return();
             }
           } finally {
-            if (_didIteratorError15) {
-              throw _iteratorError15;
+            if (_didIteratorError14) {
+              throw _iteratorError14;
             }
           }
         }
@@ -1477,29 +1447,29 @@ var ProjectService = function () {
     value: function getConstraintsForNode(node) {
       var constraints = [];
       var allConstraints = this.activeConstraints;
-      var _iteratorNormalCompletion16 = true;
-      var _didIteratorError16 = false;
-      var _iteratorError16 = undefined;
+      var _iteratorNormalCompletion15 = true;
+      var _didIteratorError15 = false;
+      var _iteratorError15 = undefined;
 
       try {
-        for (var _iterator16 = allConstraints[Symbol.iterator](), _step16; !(_iteratorNormalCompletion16 = (_step16 = _iterator16.next()).done); _iteratorNormalCompletion16 = true) {
-          var constraint = _step16.value;
+        for (var _iterator15 = allConstraints[Symbol.iterator](), _step15; !(_iteratorNormalCompletion15 = (_step15 = _iterator15.next()).done); _iteratorNormalCompletion15 = true) {
+          var constraint = _step15.value;
 
           if (this.isNodeAffectedByConstraint(node, constraint)) {
             constraints.push(constraint);
           }
         }
       } catch (err) {
-        _didIteratorError16 = true;
-        _iteratorError16 = err;
+        _didIteratorError15 = true;
+        _iteratorError15 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion16 && _iterator16.return) {
-            _iterator16.return();
+          if (!_iteratorNormalCompletion15 && _iterator15.return) {
+            _iterator15.return();
           }
         } finally {
-          if (_didIteratorError16) {
-            throw _iteratorError16;
+          if (_didIteratorError15) {
+            throw _iteratorError15;
           }
         }
       }
@@ -1651,13 +1621,13 @@ var ProjectService = function () {
           var pathsToEnd = this.getAllPaths([], nodeIdBefore, true);
 
           if (pathsToEnd != null) {
-            var _iteratorNormalCompletion17 = true;
-            var _didIteratorError17 = false;
-            var _iteratorError17 = undefined;
+            var _iteratorNormalCompletion16 = true;
+            var _didIteratorError16 = false;
+            var _iteratorError16 = undefined;
 
             try {
-              for (var _iterator17 = pathsToEnd[Symbol.iterator](), _step17; !(_iteratorNormalCompletion17 = (_step17 = _iterator17.next()).done); _iteratorNormalCompletion17 = true) {
-                var pathToEnd = _step17.value;
+              for (var _iterator16 = pathsToEnd[Symbol.iterator](), _step16; !(_iteratorNormalCompletion16 = (_step16 = _iterator16.next()).done); _iteratorNormalCompletion16 = true) {
+                var pathToEnd = _step16.value;
 
                 if (pathToEnd != null) {
                   /*
@@ -1693,16 +1663,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError17 = true;
-              _iteratorError17 = err;
+              _didIteratorError16 = true;
+              _iteratorError16 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion17 && _iterator17.return) {
-                  _iterator17.return();
+                if (!_iteratorNormalCompletion16 && _iterator16.return) {
+                  _iterator16.return();
                 }
               } finally {
-                if (_didIteratorError17) {
-                  throw _iteratorError17;
+                if (_didIteratorError16) {
+                  throw _iteratorError16;
                 }
               }
             }
@@ -1714,13 +1684,13 @@ var ProjectService = function () {
           if (group != null) {
             var transitions = this.getTransitionsByFromNodeId(nodeIdBefore);
             if (transitions != null) {
-              var _iteratorNormalCompletion18 = true;
-              var _didIteratorError18 = false;
-              var _iteratorError18 = undefined;
+              var _iteratorNormalCompletion17 = true;
+              var _didIteratorError17 = false;
+              var _iteratorError17 = undefined;
 
               try {
-                for (var _iterator18 = transitions[Symbol.iterator](), _step18; !(_iteratorNormalCompletion18 = (_step18 = _iterator18.next()).done); _iteratorNormalCompletion18 = true) {
-                  var transition = _step18.value;
+                for (var _iterator17 = transitions[Symbol.iterator](), _step17; !(_iteratorNormalCompletion17 = (_step17 = _iterator17.next()).done); _iteratorNormalCompletion17 = true) {
+                  var transition = _step17.value;
 
                   if (transition != null) {
                     var toNodeId = transition.to;
@@ -1728,13 +1698,13 @@ var ProjectService = function () {
                     // get the paths between to toNodeId and the end of the project
                     var _pathsToEnd = this.getAllPaths([], toNodeId, true);
 
-                    var _iteratorNormalCompletion19 = true;
-                    var _didIteratorError19 = false;
-                    var _iteratorError19 = undefined;
+                    var _iteratorNormalCompletion18 = true;
+                    var _didIteratorError18 = false;
+                    var _iteratorError18 = undefined;
 
                     try {
-                      for (var _iterator19 = _pathsToEnd[Symbol.iterator](), _step19; !(_iteratorNormalCompletion19 = (_step19 = _iterator19.next()).done); _iteratorNormalCompletion19 = true) {
-                        var _pathToEnd = _step19.value;
+                      for (var _iterator18 = _pathsToEnd[Symbol.iterator](), _step18; !(_iteratorNormalCompletion18 = (_step18 = _iterator18.next()).done); _iteratorNormalCompletion18 = true) {
+                        var _pathToEnd = _step18.value;
 
                         if (_pathToEnd != null) {
                           if (_pathToEnd.indexOf(nodeIdAfter) != -1) {
@@ -1744,32 +1714,32 @@ var ProjectService = function () {
                         }
                       }
                     } catch (err) {
-                      _didIteratorError19 = true;
-                      _iteratorError19 = err;
+                      _didIteratorError18 = true;
+                      _iteratorError18 = err;
                     } finally {
                       try {
-                        if (!_iteratorNormalCompletion19 && _iterator19.return) {
-                          _iterator19.return();
+                        if (!_iteratorNormalCompletion18 && _iterator18.return) {
+                          _iterator18.return();
                         }
                       } finally {
-                        if (_didIteratorError19) {
-                          throw _iteratorError19;
+                        if (_didIteratorError18) {
+                          throw _iteratorError18;
                         }
                       }
                     }
                   }
                 }
               } catch (err) {
-                _didIteratorError18 = true;
-                _iteratorError18 = err;
+                _didIteratorError17 = true;
+                _iteratorError17 = err;
               } finally {
                 try {
-                  if (!_iteratorNormalCompletion18 && _iterator18.return) {
-                    _iterator18.return();
+                  if (!_iteratorNormalCompletion17 && _iterator17.return) {
+                    _iterator17.return();
                   }
                 } finally {
-                  if (_didIteratorError18) {
-                    throw _iteratorError18;
+                  if (_didIteratorError17) {
+                    throw _iteratorError17;
                   }
                 }
               }
@@ -1835,57 +1805,57 @@ var ProjectService = function () {
       var nodesByToNodeId = [];
       if (toNodeId != null) {
         var nodes = this.project.nodes;
-        var _iteratorNormalCompletion20 = true;
-        var _didIteratorError20 = false;
-        var _iteratorError20 = undefined;
+        var _iteratorNormalCompletion19 = true;
+        var _didIteratorError19 = false;
+        var _iteratorError19 = undefined;
 
         try {
-          for (var _iterator20 = nodes[Symbol.iterator](), _step20; !(_iteratorNormalCompletion20 = (_step20 = _iterator20.next()).done); _iteratorNormalCompletion20 = true) {
-            var node = _step20.value;
+          for (var _iterator19 = nodes[Symbol.iterator](), _step19; !(_iteratorNormalCompletion19 = (_step19 = _iterator19.next()).done); _iteratorNormalCompletion19 = true) {
+            var node = _step19.value;
 
             if (this.nodeHasTransitionToNodeId(node, toNodeId)) {
               nodesByToNodeId.push(node);
             }
           }
         } catch (err) {
-          _didIteratorError20 = true;
-          _iteratorError20 = err;
+          _didIteratorError19 = true;
+          _iteratorError19 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion20 && _iterator20.return) {
-              _iterator20.return();
+            if (!_iteratorNormalCompletion19 && _iterator19.return) {
+              _iterator19.return();
             }
           } finally {
-            if (_didIteratorError20) {
-              throw _iteratorError20;
+            if (_didIteratorError19) {
+              throw _iteratorError19;
             }
           }
         }
 
         var inactiveNodes = this.getInactiveNodes();
-        var _iteratorNormalCompletion21 = true;
-        var _didIteratorError21 = false;
-        var _iteratorError21 = undefined;
+        var _iteratorNormalCompletion20 = true;
+        var _didIteratorError20 = false;
+        var _iteratorError20 = undefined;
 
         try {
-          for (var _iterator21 = inactiveNodes[Symbol.iterator](), _step21; !(_iteratorNormalCompletion21 = (_step21 = _iterator21.next()).done); _iteratorNormalCompletion21 = true) {
-            var inactiveNode = _step21.value;
+          for (var _iterator20 = inactiveNodes[Symbol.iterator](), _step20; !(_iteratorNormalCompletion20 = (_step20 = _iterator20.next()).done); _iteratorNormalCompletion20 = true) {
+            var inactiveNode = _step20.value;
 
             if (this.nodeHasTransitionToNodeId(inactiveNode, toNodeId)) {
               nodesByToNodeId.push(inactiveNode);
             }
           }
         } catch (err) {
-          _didIteratorError21 = true;
-          _iteratorError21 = err;
+          _didIteratorError20 = true;
+          _iteratorError20 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion21 && _iterator21.return) {
-              _iterator21.return();
+            if (!_iteratorNormalCompletion20 && _iterator20.return) {
+              _iterator20.return();
             }
           } finally {
-            if (_didIteratorError21) {
-              throw _iteratorError21;
+            if (_didIteratorError20) {
+              throw _iteratorError20;
             }
           }
         }
@@ -1907,13 +1877,13 @@ var ProjectService = function () {
       if (transitionLogic != null) {
         var transitions = transitionLogic.transitions;
         if (transitions != null) {
-          var _iteratorNormalCompletion22 = true;
-          var _didIteratorError22 = false;
-          var _iteratorError22 = undefined;
+          var _iteratorNormalCompletion21 = true;
+          var _didIteratorError21 = false;
+          var _iteratorError21 = undefined;
 
           try {
-            for (var _iterator22 = transitions[Symbol.iterator](), _step22; !(_iteratorNormalCompletion22 = (_step22 = _iterator22.next()).done); _iteratorNormalCompletion22 = true) {
-              var transition = _step22.value;
+            for (var _iterator21 = transitions[Symbol.iterator](), _step21; !(_iteratorNormalCompletion21 = (_step21 = _iterator21.next()).done); _iteratorNormalCompletion21 = true) {
+              var transition = _step21.value;
 
               if (transition != null) {
                 if (toNodeId === transition.to) {
@@ -1922,16 +1892,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError22 = true;
-            _iteratorError22 = err;
+            _didIteratorError21 = true;
+            _iteratorError21 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion22 && _iterator22.return) {
-                _iterator22.return();
+              if (!_iteratorNormalCompletion21 && _iterator21.return) {
+                _iterator21.return();
               }
             } finally {
-              if (_didIteratorError22) {
-                throw _iteratorError22;
+              if (_didIteratorError21) {
+                throw _iteratorError21;
               }
             }
           }
@@ -1952,29 +1922,29 @@ var ProjectService = function () {
       var nodeIds = [];
       var nodes = this.getNodesByToNodeId(toNodeId);
       if (nodes != null) {
-        var _iteratorNormalCompletion23 = true;
-        var _didIteratorError23 = false;
-        var _iteratorError23 = undefined;
+        var _iteratorNormalCompletion22 = true;
+        var _didIteratorError22 = false;
+        var _iteratorError22 = undefined;
 
         try {
-          for (var _iterator23 = nodes[Symbol.iterator](), _step23; !(_iteratorNormalCompletion23 = (_step23 = _iterator23.next()).done); _iteratorNormalCompletion23 = true) {
-            var node = _step23.value;
+          for (var _iterator22 = nodes[Symbol.iterator](), _step22; !(_iteratorNormalCompletion22 = (_step22 = _iterator22.next()).done); _iteratorNormalCompletion22 = true) {
+            var node = _step22.value;
 
             if (node != null) {
               nodeIds.push(node.id);
             }
           }
         } catch (err) {
-          _didIteratorError23 = true;
-          _iteratorError23 = err;
+          _didIteratorError22 = true;
+          _iteratorError22 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion23 && _iterator23.return) {
-              _iterator23.return();
+            if (!_iteratorNormalCompletion22 && _iterator22.return) {
+              _iterator22.return();
             }
           } finally {
-            if (_didIteratorError23) {
-              throw _iteratorError23;
+            if (_didIteratorError22) {
+              throw _iteratorError22;
             }
           }
         }
@@ -1993,13 +1963,13 @@ var ProjectService = function () {
       var groupsThatPointToNodeId = [];
       if (toNodeId != null) {
         var groups = this.getGroups();
-        var _iteratorNormalCompletion24 = true;
-        var _didIteratorError24 = false;
-        var _iteratorError24 = undefined;
+        var _iteratorNormalCompletion23 = true;
+        var _didIteratorError23 = false;
+        var _iteratorError23 = undefined;
 
         try {
-          for (var _iterator24 = groups[Symbol.iterator](), _step24; !(_iteratorNormalCompletion24 = (_step24 = _iterator24.next()).done); _iteratorNormalCompletion24 = true) {
-            var group = _step24.value;
+          for (var _iterator23 = groups[Symbol.iterator](), _step23; !(_iteratorNormalCompletion23 = (_step23 = _iterator23.next()).done); _iteratorNormalCompletion23 = true) {
+            var group = _step23.value;
 
             if (group != null) {
               if (this.hasTransitionTo(group, toNodeId)) {
@@ -2008,16 +1978,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError24 = true;
-          _iteratorError24 = err;
+          _didIteratorError23 = true;
+          _iteratorError23 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion24 && _iterator24.return) {
-              _iterator24.return();
+            if (!_iteratorNormalCompletion23 && _iterator23.return) {
+              _iterator23.return();
             }
           } finally {
-            if (_didIteratorError24) {
-              throw _iteratorError24;
+            if (_didIteratorError23) {
+              throw _iteratorError23;
             }
           }
         }
@@ -2040,29 +2010,29 @@ var ProjectService = function () {
         if (transitionLogic != null) {
           var transitions = transitionLogic.transitions;
           if (transitions != null) {
-            var _iteratorNormalCompletion25 = true;
-            var _didIteratorError25 = false;
-            var _iteratorError25 = undefined;
+            var _iteratorNormalCompletion24 = true;
+            var _didIteratorError24 = false;
+            var _iteratorError24 = undefined;
 
             try {
-              for (var _iterator25 = transitions[Symbol.iterator](), _step25; !(_iteratorNormalCompletion25 = (_step25 = _iterator25.next()).done); _iteratorNormalCompletion25 = true) {
-                var transition = _step25.value;
+              for (var _iterator24 = transitions[Symbol.iterator](), _step24; !(_iteratorNormalCompletion24 = (_step24 = _iterator24.next()).done); _iteratorNormalCompletion24 = true) {
+                var transition = _step24.value;
 
                 if (toNodeId === transition.to) {
                   return true;
                 }
               }
             } catch (err) {
-              _didIteratorError25 = true;
-              _iteratorError25 = err;
+              _didIteratorError24 = true;
+              _iteratorError24 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion25 && _iterator25.return) {
-                  _iterator25.return();
+                if (!_iteratorNormalCompletion24 && _iterator24.return) {
+                  _iterator24.return();
                 }
               } finally {
-                if (_didIteratorError25) {
-                  throw _iteratorError25;
+                if (_didIteratorError24) {
+                  throw _iteratorError24;
                 }
               }
             }
@@ -2091,13 +2061,13 @@ var ProjectService = function () {
           if (transitionLogic != null) {
             var transitions = transitionLogic.transitions;
             if (transitions != null) {
-              var _iteratorNormalCompletion26 = true;
-              var _didIteratorError26 = false;
-              var _iteratorError26 = undefined;
+              var _iteratorNormalCompletion25 = true;
+              var _didIteratorError25 = false;
+              var _iteratorError25 = undefined;
 
               try {
-                for (var _iterator26 = transitions[Symbol.iterator](), _step26; !(_iteratorNormalCompletion26 = (_step26 = _iterator26.next()).done); _iteratorNormalCompletion26 = true) {
-                  var transition = _step26.value;
+                for (var _iterator25 = transitions[Symbol.iterator](), _step25; !(_iteratorNormalCompletion25 = (_step25 = _iterator25.next()).done); _iteratorNormalCompletion25 = true) {
+                  var transition = _step25.value;
 
                   if (transition != null) {
                     var to = transition.to;
@@ -2107,16 +2077,16 @@ var ProjectService = function () {
                   }
                 }
               } catch (err) {
-                _didIteratorError26 = true;
-                _iteratorError26 = err;
+                _didIteratorError25 = true;
+                _iteratorError25 = err;
               } finally {
                 try {
-                  if (!_iteratorNormalCompletion26 && _iterator26.return) {
-                    _iterator26.return();
+                  if (!_iteratorNormalCompletion25 && _iterator25.return) {
+                    _iterator25.return();
                   }
                 } finally {
-                  if (_didIteratorError26) {
-                    throw _iteratorError26;
+                  if (_didIteratorError25) {
+                    throw _iteratorError25;
                   }
                 }
               }
@@ -2253,53 +2223,53 @@ var ProjectService = function () {
      */
     value: function cleanupBeforeSave() {
       var activeNodes = this.getActiveNodes();
-      var _iteratorNormalCompletion27 = true;
-      var _didIteratorError27 = false;
-      var _iteratorError27 = undefined;
+      var _iteratorNormalCompletion26 = true;
+      var _didIteratorError26 = false;
+      var _iteratorError26 = undefined;
 
       try {
-        for (var _iterator27 = activeNodes[Symbol.iterator](), _step27; !(_iteratorNormalCompletion27 = (_step27 = _iterator27.next()).done); _iteratorNormalCompletion27 = true) {
-          var activeNode = _step27.value;
+        for (var _iterator26 = activeNodes[Symbol.iterator](), _step26; !(_iteratorNormalCompletion26 = (_step26 = _iterator26.next()).done); _iteratorNormalCompletion26 = true) {
+          var activeNode = _step26.value;
 
           this.cleanupNode(activeNode);
         }
       } catch (err) {
-        _didIteratorError27 = true;
-        _iteratorError27 = err;
+        _didIteratorError26 = true;
+        _iteratorError26 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion27 && _iterator27.return) {
-            _iterator27.return();
+          if (!_iteratorNormalCompletion26 && _iterator26.return) {
+            _iterator26.return();
           }
         } finally {
-          if (_didIteratorError27) {
-            throw _iteratorError27;
+          if (_didIteratorError26) {
+            throw _iteratorError26;
           }
         }
       }
 
       var inactiveNodes = this.getInactiveNodes();
-      var _iteratorNormalCompletion28 = true;
-      var _didIteratorError28 = false;
-      var _iteratorError28 = undefined;
+      var _iteratorNormalCompletion27 = true;
+      var _didIteratorError27 = false;
+      var _iteratorError27 = undefined;
 
       try {
-        for (var _iterator28 = inactiveNodes[Symbol.iterator](), _step28; !(_iteratorNormalCompletion28 = (_step28 = _iterator28.next()).done); _iteratorNormalCompletion28 = true) {
-          var inactiveNode = _step28.value;
+        for (var _iterator27 = inactiveNodes[Symbol.iterator](), _step27; !(_iteratorNormalCompletion27 = (_step27 = _iterator27.next()).done); _iteratorNormalCompletion27 = true) {
+          var inactiveNode = _step27.value;
 
           this.cleanupNode(inactiveNode);
         }
       } catch (err) {
-        _didIteratorError28 = true;
-        _iteratorError28 = err;
+        _didIteratorError27 = true;
+        _iteratorError27 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion28 && _iterator28.return) {
-            _iterator28.return();
+          if (!_iteratorNormalCompletion27 && _iterator27.return) {
+            _iterator27.return();
           }
         } finally {
-          if (_didIteratorError28) {
-            throw _iteratorError28;
+          if (_didIteratorError27) {
+            throw _iteratorError27;
           }
         }
       }
@@ -2334,27 +2304,27 @@ var ProjectService = function () {
       var components = node.components;
       // activity nodes do not have components but step nodes do have components
       if (components != null) {
-        var _iteratorNormalCompletion29 = true;
-        var _didIteratorError29 = false;
-        var _iteratorError29 = undefined;
+        var _iteratorNormalCompletion28 = true;
+        var _didIteratorError28 = false;
+        var _iteratorError28 = undefined;
 
         try {
-          for (var _iterator29 = components[Symbol.iterator](), _step29; !(_iteratorNormalCompletion29 = (_step29 = _iterator29.next()).done); _iteratorNormalCompletion29 = true) {
-            var component = _step29.value;
+          for (var _iterator28 = components[Symbol.iterator](), _step28; !(_iteratorNormalCompletion28 = (_step28 = _iterator28.next()).done); _iteratorNormalCompletion28 = true) {
+            var component = _step28.value;
 
             this.cleanupComponent(component);
           }
         } catch (err) {
-          _didIteratorError29 = true;
-          _iteratorError29 = err;
+          _didIteratorError28 = true;
+          _iteratorError28 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion29 && _iterator29.return) {
-              _iterator29.return();
+            if (!_iteratorNormalCompletion28 && _iterator28.return) {
+              _iterator28.return();
             }
           } finally {
-            if (_didIteratorError29) {
-              throw _iteratorError29;
+            if (_didIteratorError28) {
+              throw _iteratorError28;
             }
           }
         }
@@ -2503,13 +2473,13 @@ var ProjectService = function () {
               var parentGroupTransitions = this.getTransitionsByFromNodeId(_parentGroupId);
 
               if (parentGroupTransitions != null) {
-                var _iteratorNormalCompletion30 = true;
-                var _didIteratorError30 = false;
-                var _iteratorError30 = undefined;
+                var _iteratorNormalCompletion29 = true;
+                var _didIteratorError29 = false;
+                var _iteratorError29 = undefined;
 
                 try {
-                  for (var _iterator30 = parentGroupTransitions[Symbol.iterator](), _step30; !(_iteratorNormalCompletion30 = (_step30 = _iterator30.next()).done); _iteratorNormalCompletion30 = true) {
-                    var parentGroupTransition = _step30.value;
+                  for (var _iterator29 = parentGroupTransitions[Symbol.iterator](), _step29; !(_iteratorNormalCompletion29 = (_step29 = _iterator29.next()).done); _iteratorNormalCompletion29 = true) {
+                    var parentGroupTransition = _step29.value;
 
                     if (parentGroupTransition != null) {
                       var toNodeId = parentGroupTransition.to;
@@ -2520,29 +2490,29 @@ var ProjectService = function () {
                          */
                         var allPathsFromToNode = this.getAllPaths(pathSoFar, toNodeId, includeGroups);
 
-                        var _iteratorNormalCompletion31 = true;
-                        var _didIteratorError31 = false;
-                        var _iteratorError31 = undefined;
+                        var _iteratorNormalCompletion30 = true;
+                        var _didIteratorError30 = false;
+                        var _iteratorError30 = undefined;
 
                         try {
-                          for (var _iterator31 = allPathsFromToNode[Symbol.iterator](), _step31; !(_iteratorNormalCompletion31 = (_step31 = _iterator31.next()).done); _iteratorNormalCompletion31 = true) {
-                            var tempPath = _step31.value;
+                          for (var _iterator30 = allPathsFromToNode[Symbol.iterator](), _step30; !(_iteratorNormalCompletion30 = (_step30 = _iterator30.next()).done); _iteratorNormalCompletion30 = true) {
+                            var tempPath = _step30.value;
 
                             tempPath.unshift(nodeId);
                             allPaths.push(tempPath);
                             addedCurrentNodeId = true;
                           }
                         } catch (err) {
-                          _didIteratorError31 = true;
-                          _iteratorError31 = err;
+                          _didIteratorError30 = true;
+                          _iteratorError30 = err;
                         } finally {
                           try {
-                            if (!_iteratorNormalCompletion31 && _iterator31.return) {
-                              _iterator31.return();
+                            if (!_iteratorNormalCompletion30 && _iterator30.return) {
+                              _iterator30.return();
                             }
                           } finally {
-                            if (_didIteratorError31) {
-                              throw _iteratorError31;
+                            if (_didIteratorError30) {
+                              throw _iteratorError30;
                             }
                           }
                         }
@@ -2550,16 +2520,16 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError30 = true;
-                  _iteratorError30 = err;
+                  _didIteratorError29 = true;
+                  _iteratorError29 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion30 && _iterator30.return) {
-                      _iterator30.return();
+                    if (!_iteratorNormalCompletion29 && _iterator29.return) {
+                      _iterator29.return();
                     }
                   } finally {
-                    if (_didIteratorError30) {
-                      throw _iteratorError30;
+                    if (_didIteratorError29) {
+                      throw _iteratorError29;
                     }
                   }
                 }
@@ -2576,13 +2546,13 @@ var ProjectService = function () {
             } else {
               // there are transitions from this node id
 
-              var _iteratorNormalCompletion32 = true;
-              var _didIteratorError32 = false;
-              var _iteratorError32 = undefined;
+              var _iteratorNormalCompletion31 = true;
+              var _didIteratorError31 = false;
+              var _iteratorError31 = undefined;
 
               try {
-                for (var _iterator32 = transitions[Symbol.iterator](), _step32; !(_iteratorNormalCompletion32 = (_step32 = _iterator32.next()).done); _iteratorNormalCompletion32 = true) {
-                  var transition = _step32.value;
+                for (var _iterator31 = transitions[Symbol.iterator](), _step31; !(_iteratorNormalCompletion31 = (_step31 = _iterator31.next()).done); _iteratorNormalCompletion31 = true) {
+                  var transition = _step31.value;
 
                   if (transition != null) {
                     var _toNodeId = transition.to;
@@ -2596,13 +2566,13 @@ var ProjectService = function () {
                       var _allPathsFromToNode = this.getAllPaths(pathSoFar, _toNodeId, includeGroups);
 
                       if (_allPathsFromToNode != null) {
-                        var _iteratorNormalCompletion33 = true;
-                        var _didIteratorError33 = false;
-                        var _iteratorError33 = undefined;
+                        var _iteratorNormalCompletion32 = true;
+                        var _didIteratorError32 = false;
+                        var _iteratorError32 = undefined;
 
                         try {
-                          for (var _iterator33 = _allPathsFromToNode[Symbol.iterator](), _step33; !(_iteratorNormalCompletion33 = (_step33 = _iterator33.next()).done); _iteratorNormalCompletion33 = true) {
-                            var _tempPath = _step33.value;
+                          for (var _iterator32 = _allPathsFromToNode[Symbol.iterator](), _step32; !(_iteratorNormalCompletion32 = (_step32 = _iterator32.next()).done); _iteratorNormalCompletion32 = true) {
+                            var _tempPath = _step32.value;
 
                             if (includeGroups) {
                               // we need to add the group id to the path
@@ -2629,16 +2599,16 @@ var ProjectService = function () {
                             allPaths.push(_tempPath);
                           }
                         } catch (err) {
-                          _didIteratorError33 = true;
-                          _iteratorError33 = err;
+                          _didIteratorError32 = true;
+                          _iteratorError32 = err;
                         } finally {
                           try {
-                            if (!_iteratorNormalCompletion33 && _iterator33.return) {
-                              _iterator33.return();
+                            if (!_iteratorNormalCompletion32 && _iterator32.return) {
+                              _iterator32.return();
                             }
                           } finally {
-                            if (_didIteratorError33) {
-                              throw _iteratorError33;
+                            if (_didIteratorError32) {
+                              throw _iteratorError32;
                             }
                           }
                         }
@@ -2658,16 +2628,16 @@ var ProjectService = function () {
                   }
                 }
               } catch (err) {
-                _didIteratorError32 = true;
-                _iteratorError32 = err;
+                _didIteratorError31 = true;
+                _iteratorError31 = err;
               } finally {
                 try {
-                  if (!_iteratorNormalCompletion32 && _iterator32.return) {
-                    _iterator32.return();
+                  if (!_iteratorNormalCompletion31 && _iterator31.return) {
+                    _iterator31.return();
                   }
                 } finally {
-                  if (_didIteratorError32) {
-                    throw _iteratorError32;
+                  if (_didIteratorError31) {
+                    throw _iteratorError31;
                   }
                 }
               }
@@ -2703,13 +2673,13 @@ var ProjectService = function () {
                  * to all of the paths
                  */
 
-                var _iteratorNormalCompletion34 = true;
-                var _didIteratorError34 = false;
-                var _iteratorError34 = undefined;
+                var _iteratorNormalCompletion33 = true;
+                var _didIteratorError33 = false;
+                var _iteratorError33 = undefined;
 
                 try {
-                  for (var _iterator34 = allPaths[Symbol.iterator](), _step34; !(_iteratorNormalCompletion34 = (_step34 = _iterator34.next()).done); _iteratorNormalCompletion34 = true) {
-                    var _path = _step34.value;
+                  for (var _iterator33 = allPaths[Symbol.iterator](), _step33; !(_iteratorNormalCompletion33 = (_step33 = _iterator33.next()).done); _iteratorNormalCompletion33 = true) {
+                    var _path = _step33.value;
 
                     if (_path != null) {
                       /*
@@ -2727,16 +2697,16 @@ var ProjectService = function () {
                    * calculating all the paths
                    */
                 } catch (err) {
-                  _didIteratorError34 = true;
-                  _iteratorError34 = err;
+                  _didIteratorError33 = true;
+                  _iteratorError33 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion34 && _iterator34.return) {
-                      _iterator34.return();
+                    if (!_iteratorNormalCompletion33 && _iterator33.return) {
+                      _iterator33.return();
                     }
                   } finally {
-                    if (_didIteratorError34) {
-                      throw _iteratorError34;
+                    if (_didIteratorError33) {
+                      throw _iteratorError33;
                     }
                   }
                 }
@@ -2763,13 +2733,13 @@ var ProjectService = function () {
 
               var _transitions = this.getTransitionsByFromNodeId(groupNode.id);
               if (_transitions != null && _transitions.length > 0) {
-                var _iteratorNormalCompletion35 = true;
-                var _didIteratorError35 = false;
-                var _iteratorError35 = undefined;
+                var _iteratorNormalCompletion34 = true;
+                var _didIteratorError34 = false;
+                var _iteratorError34 = undefined;
 
                 try {
-                  for (var _iterator35 = _transitions[Symbol.iterator](), _step35; !(_iteratorNormalCompletion35 = (_step35 = _iterator35.next()).done); _iteratorNormalCompletion35 = true) {
-                    var _transition = _step35.value;
+                  for (var _iterator34 = _transitions[Symbol.iterator](), _step34; !(_iteratorNormalCompletion34 = (_step34 = _iterator34.next()).done); _iteratorNormalCompletion34 = true) {
+                    var _transition = _step34.value;
 
                     if (_transition != null) {
                       var _toNodeId2 = _transition.to;
@@ -2777,28 +2747,28 @@ var ProjectService = function () {
                       var _allPathsFromToNode2 = this.getAllPaths(pathSoFar, _toNodeId2, includeGroups);
 
                       if (_allPathsFromToNode2 != null) {
-                        var _iteratorNormalCompletion36 = true;
-                        var _didIteratorError36 = false;
-                        var _iteratorError36 = undefined;
+                        var _iteratorNormalCompletion35 = true;
+                        var _didIteratorError35 = false;
+                        var _iteratorError35 = undefined;
 
                         try {
-                          for (var _iterator36 = _allPathsFromToNode2[Symbol.iterator](), _step36; !(_iteratorNormalCompletion36 = (_step36 = _iterator36.next()).done); _iteratorNormalCompletion36 = true) {
-                            var _tempPath2 = _step36.value;
+                          for (var _iterator35 = _allPathsFromToNode2[Symbol.iterator](), _step35; !(_iteratorNormalCompletion35 = (_step35 = _iterator35.next()).done); _iteratorNormalCompletion35 = true) {
+                            var _tempPath2 = _step35.value;
 
                             _tempPath2.unshift(nodeId);
                             allPaths.push(_tempPath2);
                           }
                         } catch (err) {
-                          _didIteratorError36 = true;
-                          _iteratorError36 = err;
+                          _didIteratorError35 = true;
+                          _iteratorError35 = err;
                         } finally {
                           try {
-                            if (!_iteratorNormalCompletion36 && _iterator36.return) {
-                              _iterator36.return();
+                            if (!_iteratorNormalCompletion35 && _iterator35.return) {
+                              _iterator35.return();
                             }
                           } finally {
-                            if (_didIteratorError36) {
-                              throw _iteratorError36;
+                            if (_didIteratorError35) {
+                              throw _iteratorError35;
                             }
                           }
                         }
@@ -2806,16 +2776,16 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError35 = true;
-                  _iteratorError35 = err;
+                  _didIteratorError34 = true;
+                  _iteratorError34 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion35 && _iterator35.return) {
-                      _iterator35.return();
+                    if (!_iteratorNormalCompletion34 && _iterator34.return) {
+                      _iterator34.return();
                     }
                   } finally {
-                    if (_didIteratorError35) {
-                      throw _iteratorError35;
+                    if (_didIteratorError34) {
+                      throw _iteratorError34;
                     }
                   }
                 }
@@ -2835,28 +2805,28 @@ var ProjectService = function () {
               var _allPathsFromToNode3 = this.getAllPaths(pathSoFar, startId, includeGroups);
 
               if (_allPathsFromToNode3 != null) {
-                var _iteratorNormalCompletion37 = true;
-                var _didIteratorError37 = false;
-                var _iteratorError37 = undefined;
+                var _iteratorNormalCompletion36 = true;
+                var _didIteratorError36 = false;
+                var _iteratorError36 = undefined;
 
                 try {
-                  for (var _iterator37 = _allPathsFromToNode3[Symbol.iterator](), _step37; !(_iteratorNormalCompletion37 = (_step37 = _iterator37.next()).done); _iteratorNormalCompletion37 = true) {
-                    var _tempPath4 = _step37.value;
+                  for (var _iterator36 = _allPathsFromToNode3[Symbol.iterator](), _step36; !(_iteratorNormalCompletion36 = (_step36 = _iterator36.next()).done); _iteratorNormalCompletion36 = true) {
+                    var _tempPath4 = _step36.value;
 
                     _tempPath4.unshift(nodeId);
                     allPaths.push(_tempPath4);
                   }
                 } catch (err) {
-                  _didIteratorError37 = true;
-                  _iteratorError37 = err;
+                  _didIteratorError36 = true;
+                  _iteratorError36 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion37 && _iterator37.return) {
-                      _iterator37.return();
+                    if (!_iteratorNormalCompletion36 && _iterator36.return) {
+                      _iterator36.return();
                     }
                   } finally {
-                    if (_didIteratorError37) {
-                      throw _iteratorError37;
+                    if (_didIteratorError36) {
+                      throw _iteratorError36;
                     }
                   }
                 }
@@ -3003,13 +2973,13 @@ var ProjectService = function () {
 
                   var pathsToConsume = [];
 
-                  var _iteratorNormalCompletion38 = true;
-                  var _didIteratorError38 = false;
-                  var _iteratorError38 = undefined;
+                  var _iteratorNormalCompletion37 = true;
+                  var _didIteratorError37 = false;
+                  var _iteratorError37 = undefined;
 
                   try {
-                    for (var _iterator38 = pathsThatContainNodeId[Symbol.iterator](), _step38; !(_iteratorNormalCompletion38 = (_step38 = _iterator38.next()).done); _iteratorNormalCompletion38 = true) {
-                      var pathThatContainsNodeId = _step38.value;
+                    for (var _iterator37 = pathsThatContainNodeId[Symbol.iterator](), _step37; !(_iteratorNormalCompletion37 = (_step37 = _iterator37.next()).done); _iteratorNormalCompletion37 = true) {
+                      var pathThatContainsNodeId = _step37.value;
 
                       // get the index of the node id we want to remove
                       var tempNodeIdIndex = pathThatContainsNodeId.indexOf(tempNodeId);
@@ -3048,16 +3018,16 @@ var ProjectService = function () {
                      * the paths until the given node id
                      */
                   } catch (err) {
-                    _didIteratorError38 = true;
-                    _iteratorError38 = err;
+                    _didIteratorError37 = true;
+                    _iteratorError37 = err;
                   } finally {
                     try {
-                      if (!_iteratorNormalCompletion38 && _iterator38.return) {
-                        _iterator38.return();
+                      if (!_iteratorNormalCompletion37 && _iterator37.return) {
+                        _iterator37.return();
                       }
                     } finally {
-                      if (_didIteratorError38) {
-                        throw _iteratorError38;
+                      if (_didIteratorError37) {
+                        throw _iteratorError37;
                       }
                     }
                   }
@@ -3115,13 +3085,13 @@ var ProjectService = function () {
      */
     value: function removeNodeIdFromPaths(nodeId, paths) {
       if (nodeId != null && paths != null) {
-        var _iteratorNormalCompletion39 = true;
-        var _didIteratorError39 = false;
-        var _iteratorError39 = undefined;
+        var _iteratorNormalCompletion38 = true;
+        var _didIteratorError38 = false;
+        var _iteratorError38 = undefined;
 
         try {
-          for (var _iterator39 = paths[Symbol.iterator](), _step39; !(_iteratorNormalCompletion39 = (_step39 = _iterator39.next()).done); _iteratorNormalCompletion39 = true) {
-            var path = _step39.value;
+          for (var _iterator38 = paths[Symbol.iterator](), _step38; !(_iteratorNormalCompletion38 = (_step38 = _iterator38.next()).done); _iteratorNormalCompletion38 = true) {
+            var path = _step38.value;
 
             for (var x = 0; x < path.length; x++) {
               var tempNodeId = path[x];
@@ -3148,16 +3118,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError39 = true;
-          _iteratorError39 = err;
+          _didIteratorError38 = true;
+          _iteratorError38 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion39 && _iterator39.return) {
-              _iterator39.return();
+            if (!_iteratorNormalCompletion38 && _iterator38.return) {
+              _iterator38.return();
             }
           } finally {
-            if (_didIteratorError39) {
-              throw _iteratorError39;
+            if (_didIteratorError38) {
+              throw _iteratorError38;
             }
           }
         }
@@ -3216,13 +3186,13 @@ var ProjectService = function () {
       var result = true;
       var nodeId = null;
       if (paths != null) {
-        var _iteratorNormalCompletion40 = true;
-        var _didIteratorError40 = false;
-        var _iteratorError40 = undefined;
+        var _iteratorNormalCompletion39 = true;
+        var _didIteratorError39 = false;
+        var _iteratorError39 = undefined;
 
         try {
-          for (var _iterator40 = paths[Symbol.iterator](), _step40; !(_iteratorNormalCompletion40 = (_step40 = _iterator40.next()).done); _iteratorNormalCompletion40 = true) {
-            var path = _step40.value;
+          for (var _iterator39 = paths[Symbol.iterator](), _step39; !(_iteratorNormalCompletion39 = (_step39 = _iterator39.next()).done); _iteratorNormalCompletion39 = true) {
+            var path = _step39.value;
 
             var tempNodeId = path[0];
             if (nodeId == null) {
@@ -3242,16 +3212,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError40 = true;
-          _iteratorError40 = err;
+          _didIteratorError39 = true;
+          _iteratorError39 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion40 && _iterator40.return) {
-              _iterator40.return();
+            if (!_iteratorNormalCompletion39 && _iterator39.return) {
+              _iterator39.return();
             }
           } finally {
-            if (_didIteratorError40) {
-              throw _iteratorError40;
+            if (_didIteratorError39) {
+              throw _iteratorError39;
             }
           }
         }
@@ -3269,13 +3239,13 @@ var ProjectService = function () {
      */
     value: function arePathsEmpty(paths) {
       if (paths != null) {
-        var _iteratorNormalCompletion41 = true;
-        var _didIteratorError41 = false;
-        var _iteratorError41 = undefined;
+        var _iteratorNormalCompletion40 = true;
+        var _didIteratorError40 = false;
+        var _iteratorError40 = undefined;
 
         try {
-          for (var _iterator41 = paths[Symbol.iterator](), _step41; !(_iteratorNormalCompletion41 = (_step41 = _iterator41.next()).done); _iteratorNormalCompletion41 = true) {
-            var path = _step41.value;
+          for (var _iterator40 = paths[Symbol.iterator](), _step40; !(_iteratorNormalCompletion40 = (_step40 = _iterator40.next()).done); _iteratorNormalCompletion40 = true) {
+            var path = _step40.value;
 
             if (path != null) {
               if (path.length !== 0) {
@@ -3284,16 +3254,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError41 = true;
-          _iteratorError41 = err;
+          _didIteratorError40 = true;
+          _iteratorError40 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion41 && _iterator41.return) {
-              _iterator41.return();
+            if (!_iteratorNormalCompletion40 && _iterator40.return) {
+              _iterator40.return();
             }
           } finally {
-            if (_didIteratorError41) {
-              throw _iteratorError41;
+            if (_didIteratorError40) {
+              throw _iteratorError40;
             }
           }
         }
@@ -3313,13 +3283,13 @@ var ProjectService = function () {
     value: function getPathsThatContainNodeId(nodeId, paths) {
       var pathsThatContainNodeId = [];
       if (nodeId != null && paths != null) {
-        var _iteratorNormalCompletion42 = true;
-        var _didIteratorError42 = false;
-        var _iteratorError42 = undefined;
+        var _iteratorNormalCompletion41 = true;
+        var _didIteratorError41 = false;
+        var _iteratorError41 = undefined;
 
         try {
-          for (var _iterator42 = paths[Symbol.iterator](), _step42; !(_iteratorNormalCompletion42 = (_step42 = _iterator42.next()).done); _iteratorNormalCompletion42 = true) {
-            var path = _step42.value;
+          for (var _iterator41 = paths[Symbol.iterator](), _step41; !(_iteratorNormalCompletion41 = (_step41 = _iterator41.next()).done); _iteratorNormalCompletion41 = true) {
+            var path = _step41.value;
 
             // check if the path contains the node id
             if (path.indexOf(nodeId) != -1) {
@@ -3331,16 +3301,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError42 = true;
-          _iteratorError42 = err;
+          _didIteratorError41 = true;
+          _iteratorError41 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion42 && _iterator42.return) {
-              _iterator42.return();
+            if (!_iteratorNormalCompletion41 && _iterator41.return) {
+              _iterator41.return();
             }
           } finally {
-            if (_didIteratorError42) {
-              throw _iteratorError42;
+            if (_didIteratorError41) {
+              throw _iteratorError41;
             }
           }
         }
@@ -3520,13 +3490,13 @@ var ProjectService = function () {
         if (paths.length > 0) {
           var path = paths[0];
 
-          var _iteratorNormalCompletion43 = true;
-          var _didIteratorError43 = false;
-          var _iteratorError43 = undefined;
+          var _iteratorNormalCompletion42 = true;
+          var _didIteratorError42 = false;
+          var _iteratorError42 = undefined;
 
           try {
-            for (var _iterator43 = path[Symbol.iterator](), _step43; !(_iteratorNormalCompletion43 = (_step43 = _iterator43.next()).done); _iteratorNormalCompletion43 = true) {
-              var tempNodeId = _step43.value;
+            for (var _iterator42 = path[Symbol.iterator](), _step42; !(_iteratorNormalCompletion42 = (_step42 = _iterator42.next()).done); _iteratorNormalCompletion42 = true) {
+              var tempNodeId = _step42.value;
 
               if (this.allPathsContainNodeId(paths, tempNodeId)) {
                 /*
@@ -3538,16 +3508,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError43 = true;
-            _iteratorError43 = err;
+            _didIteratorError42 = true;
+            _iteratorError42 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion43 && _iterator43.return) {
-                _iterator43.return();
+              if (!_iteratorNormalCompletion42 && _iterator42.return) {
+                _iterator42.return();
               }
             } finally {
-              if (_didIteratorError43) {
-                throw _iteratorError43;
+              if (_didIteratorError42) {
+                throw _iteratorError42;
               }
             }
           }
@@ -3568,13 +3538,13 @@ var ProjectService = function () {
     value: function allPathsContainNodeId(paths, nodeId) {
       var result = false;
       if (paths != null) {
-        var _iteratorNormalCompletion44 = true;
-        var _didIteratorError44 = false;
-        var _iteratorError44 = undefined;
+        var _iteratorNormalCompletion43 = true;
+        var _didIteratorError43 = false;
+        var _iteratorError43 = undefined;
 
         try {
-          for (var _iterator44 = paths[Symbol.iterator](), _step44; !(_iteratorNormalCompletion44 = (_step44 = _iterator44.next()).done); _iteratorNormalCompletion44 = true) {
-            var path = _step44.value;
+          for (var _iterator43 = paths[Symbol.iterator](), _step43; !(_iteratorNormalCompletion43 = (_step43 = _iterator43.next()).done); _iteratorNormalCompletion43 = true) {
+            var path = _step43.value;
 
             var index = path.indexOf(nodeId);
             if (index == -1) {
@@ -3585,16 +3555,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError44 = true;
-          _iteratorError44 = err;
+          _didIteratorError43 = true;
+          _iteratorError43 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion44 && _iterator44.return) {
-              _iterator44.return();
+            if (!_iteratorNormalCompletion43 && _iterator43.return) {
+              _iterator43.return();
             }
           } finally {
-            if (_didIteratorError44) {
-              throw _iteratorError44;
+            if (_didIteratorError43) {
+              throw _iteratorError43;
             }
           }
         }
@@ -3614,13 +3584,13 @@ var ProjectService = function () {
      */
     value: function trimPathsUpToNodeId(paths, nodeId) {
       if (paths != null) {
-        var _iteratorNormalCompletion45 = true;
-        var _didIteratorError45 = false;
-        var _iteratorError45 = undefined;
+        var _iteratorNormalCompletion44 = true;
+        var _didIteratorError44 = false;
+        var _iteratorError44 = undefined;
 
         try {
-          for (var _iterator45 = paths[Symbol.iterator](), _step45; !(_iteratorNormalCompletion45 = (_step45 = _iterator45.next()).done); _iteratorNormalCompletion45 = true) {
-            var path = _step45.value;
+          for (var _iterator44 = paths[Symbol.iterator](), _step44; !(_iteratorNormalCompletion44 = (_step44 = _iterator44.next()).done); _iteratorNormalCompletion44 = true) {
+            var path = _step44.value;
 
             if (path != null) {
               var index = path.indexOf(nodeId);
@@ -3642,16 +3612,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError45 = true;
-          _iteratorError45 = err;
+          _didIteratorError44 = true;
+          _iteratorError44 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion45 && _iterator45.return) {
-              _iterator45.return();
+            if (!_iteratorNormalCompletion44 && _iterator44.return) {
+              _iterator44.return();
             }
           } finally {
-            if (_didIteratorError45) {
-              throw _iteratorError45;
+            if (_didIteratorError44) {
+              throw _iteratorError44;
             }
           }
         }
@@ -3671,13 +3641,13 @@ var ProjectService = function () {
     value: function extractPathsUpToNodeId(paths, nodeId) {
       var extractedPaths = [];
       if (paths != null) {
-        var _iteratorNormalCompletion46 = true;
-        var _didIteratorError46 = false;
-        var _iteratorError46 = undefined;
+        var _iteratorNormalCompletion45 = true;
+        var _didIteratorError45 = false;
+        var _iteratorError45 = undefined;
 
         try {
-          for (var _iterator46 = paths[Symbol.iterator](), _step46; !(_iteratorNormalCompletion46 = (_step46 = _iterator46.next()).done); _iteratorNormalCompletion46 = true) {
-            var path = _step46.value;
+          for (var _iterator45 = paths[Symbol.iterator](), _step45; !(_iteratorNormalCompletion45 = (_step45 = _iterator45.next()).done); _iteratorNormalCompletion45 = true) {
+            var path = _step45.value;
 
             if (path != null) {
               var index = path.indexOf(nodeId);
@@ -3700,16 +3670,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError46 = true;
-          _iteratorError46 = err;
+          _didIteratorError45 = true;
+          _iteratorError45 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion46 && _iterator46.return) {
-              _iterator46.return();
+            if (!_iteratorNormalCompletion45 && _iterator45.return) {
+              _iterator45.return();
             }
           } finally {
-            if (_didIteratorError46) {
-              throw _iteratorError46;
+            if (_didIteratorError45) {
+              throw _iteratorError45;
             }
           }
         }
@@ -3728,38 +3698,38 @@ var ProjectService = function () {
     value: function removeDuplicatePaths(paths) {
       var uniquePaths = [];
       if (paths != null) {
-        var _iteratorNormalCompletion47 = true;
-        var _didIteratorError47 = false;
-        var _iteratorError47 = undefined;
+        var _iteratorNormalCompletion46 = true;
+        var _didIteratorError46 = false;
+        var _iteratorError46 = undefined;
 
         try {
-          for (var _iterator47 = paths[Symbol.iterator](), _step47; !(_iteratorNormalCompletion47 = (_step47 = _iterator47.next()).done); _iteratorNormalCompletion47 = true) {
-            var path = _step47.value;
+          for (var _iterator46 = paths[Symbol.iterator](), _step46; !(_iteratorNormalCompletion46 = (_step46 = _iterator46.next()).done); _iteratorNormalCompletion46 = true) {
+            var path = _step46.value;
 
             var isPathInUniquePaths = false;
-            var _iteratorNormalCompletion48 = true;
-            var _didIteratorError48 = false;
-            var _iteratorError48 = undefined;
+            var _iteratorNormalCompletion47 = true;
+            var _didIteratorError47 = false;
+            var _iteratorError47 = undefined;
 
             try {
-              for (var _iterator48 = uniquePaths[Symbol.iterator](), _step48; !(_iteratorNormalCompletion48 = (_step48 = _iterator48.next()).done); _iteratorNormalCompletion48 = true) {
-                var uniquePath = _step48.value;
+              for (var _iterator47 = uniquePaths[Symbol.iterator](), _step47; !(_iteratorNormalCompletion47 = (_step47 = _iterator47.next()).done); _iteratorNormalCompletion47 = true) {
+                var uniquePath = _step47.value;
 
                 if (this.pathsEqual(path, uniquePath)) {
                   isPathInUniquePaths = true;
                 }
               }
             } catch (err) {
-              _didIteratorError48 = true;
-              _iteratorError48 = err;
+              _didIteratorError47 = true;
+              _iteratorError47 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion48 && _iterator48.return) {
-                  _iterator48.return();
+                if (!_iteratorNormalCompletion47 && _iterator47.return) {
+                  _iterator47.return();
                 }
               } finally {
-                if (_didIteratorError48) {
-                  throw _iteratorError48;
+                if (_didIteratorError47) {
+                  throw _iteratorError47;
                 }
               }
             }
@@ -3771,16 +3741,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError47 = true;
-          _iteratorError47 = err;
+          _didIteratorError46 = true;
+          _iteratorError46 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion47 && _iterator47.return) {
-              _iterator47.return();
+            if (!_iteratorNormalCompletion46 && _iterator46.return) {
+              _iterator46.return();
             }
           } finally {
-            if (_didIteratorError47) {
-              throw _iteratorError47;
+            if (_didIteratorError46) {
+              throw _iteratorError46;
             }
           }
         }
@@ -3828,24 +3798,24 @@ var ProjectService = function () {
      */
     value: function isNodeIdInABranch(branches, nodeId) {
       if (branches != null && nodeId != null) {
-        var _iteratorNormalCompletion49 = true;
-        var _didIteratorError49 = false;
-        var _iteratorError49 = undefined;
+        var _iteratorNormalCompletion48 = true;
+        var _didIteratorError48 = false;
+        var _iteratorError48 = undefined;
 
         try {
-          for (var _iterator49 = branches[Symbol.iterator](), _step49; !(_iteratorNormalCompletion49 = (_step49 = _iterator49.next()).done); _iteratorNormalCompletion49 = true) {
-            var branch = _step49.value;
+          for (var _iterator48 = branches[Symbol.iterator](), _step48; !(_iteratorNormalCompletion48 = (_step48 = _iterator48.next()).done); _iteratorNormalCompletion48 = true) {
+            var branch = _step48.value;
 
             if (branch != null) {
               var branchPaths = branch.branchPaths;
               if (branchPaths != null) {
-                var _iteratorNormalCompletion50 = true;
-                var _didIteratorError50 = false;
-                var _iteratorError50 = undefined;
+                var _iteratorNormalCompletion49 = true;
+                var _didIteratorError49 = false;
+                var _iteratorError49 = undefined;
 
                 try {
-                  for (var _iterator50 = branchPaths[Symbol.iterator](), _step50; !(_iteratorNormalCompletion50 = (_step50 = _iterator50.next()).done); _iteratorNormalCompletion50 = true) {
-                    var branchPath = _step50.value;
+                  for (var _iterator49 = branchPaths[Symbol.iterator](), _step49; !(_iteratorNormalCompletion49 = (_step49 = _iterator49.next()).done); _iteratorNormalCompletion49 = true) {
+                    var branchPath = _step49.value;
 
                     if (branchPath != null) {
                       var index = branchPath.indexOf(nodeId);
@@ -3855,16 +3825,16 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError50 = true;
-                  _iteratorError50 = err;
+                  _didIteratorError49 = true;
+                  _iteratorError49 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion50 && _iterator50.return) {
-                      _iterator50.return();
+                    if (!_iteratorNormalCompletion49 && _iterator49.return) {
+                      _iterator49.return();
                     }
                   } finally {
-                    if (_didIteratorError50) {
-                      throw _iteratorError50;
+                    if (_didIteratorError49) {
+                      throw _iteratorError49;
                     }
                   }
                 }
@@ -3872,16 +3842,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError49 = true;
-          _iteratorError49 = err;
+          _didIteratorError48 = true;
+          _iteratorError48 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion49 && _iterator49.return) {
-              _iterator49.return();
+            if (!_iteratorNormalCompletion48 && _iterator48.return) {
+              _iterator48.return();
             }
           } finally {
-            if (_didIteratorError49) {
-              throw _iteratorError49;
+            if (_didIteratorError48) {
+              throw _iteratorError48;
             }
           }
         }
@@ -3901,24 +3871,24 @@ var ProjectService = function () {
     value: function getBranchPathsByNodeId(branches, nodeId) {
       var branchPathsIn = [];
       if (branches != null && nodeId != null) {
-        var _iteratorNormalCompletion51 = true;
-        var _didIteratorError51 = false;
-        var _iteratorError51 = undefined;
+        var _iteratorNormalCompletion50 = true;
+        var _didIteratorError50 = false;
+        var _iteratorError50 = undefined;
 
         try {
-          for (var _iterator51 = branches[Symbol.iterator](), _step51; !(_iteratorNormalCompletion51 = (_step51 = _iterator51.next()).done); _iteratorNormalCompletion51 = true) {
-            var branch = _step51.value;
+          for (var _iterator50 = branches[Symbol.iterator](), _step50; !(_iteratorNormalCompletion50 = (_step50 = _iterator50.next()).done); _iteratorNormalCompletion50 = true) {
+            var branch = _step50.value;
 
             if (branch != null) {
               var branchPaths = branch.branchPaths;
               if (branchPaths != null) {
-                var _iteratorNormalCompletion52 = true;
-                var _didIteratorError52 = false;
-                var _iteratorError52 = undefined;
+                var _iteratorNormalCompletion51 = true;
+                var _didIteratorError51 = false;
+                var _iteratorError51 = undefined;
 
                 try {
-                  for (var _iterator52 = branchPaths[Symbol.iterator](), _step52; !(_iteratorNormalCompletion52 = (_step52 = _iterator52.next()).done); _iteratorNormalCompletion52 = true) {
-                    var branchPath = _step52.value;
+                  for (var _iterator51 = branchPaths[Symbol.iterator](), _step51; !(_iteratorNormalCompletion51 = (_step51 = _iterator51.next()).done); _iteratorNormalCompletion51 = true) {
+                    var branchPath = _step51.value;
 
                     if (branchPath != null) {
                       var index = branchPath.indexOf(nodeId);
@@ -3932,16 +3902,16 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError52 = true;
-                  _iteratorError52 = err;
+                  _didIteratorError51 = true;
+                  _iteratorError51 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion52 && _iterator52.return) {
-                      _iterator52.return();
+                    if (!_iteratorNormalCompletion51 && _iterator51.return) {
+                      _iterator51.return();
                     }
                   } finally {
-                    if (_didIteratorError52) {
-                      throw _iteratorError52;
+                    if (_didIteratorError51) {
+                      throw _iteratorError51;
                     }
                   }
                 }
@@ -3949,16 +3919,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError51 = true;
-          _iteratorError51 = err;
+          _didIteratorError50 = true;
+          _iteratorError50 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion51 && _iterator51.return) {
-              _iterator51.return();
+            if (!_iteratorNormalCompletion50 && _iterator50.return) {
+              _iterator50.return();
             }
           } finally {
-            if (_didIteratorError51) {
-              throw _iteratorError51;
+            if (_didIteratorError50) {
+              throw _iteratorError50;
             }
           }
         }
@@ -3978,13 +3948,13 @@ var ProjectService = function () {
     value: function getComponentByNodeIdAndComponentId(nodeId, componentId) {
       if (nodeId != null && componentId != null) {
         var components = this.getComponentsByNodeId(nodeId);
-        var _iteratorNormalCompletion53 = true;
-        var _didIteratorError53 = false;
-        var _iteratorError53 = undefined;
+        var _iteratorNormalCompletion52 = true;
+        var _didIteratorError52 = false;
+        var _iteratorError52 = undefined;
 
         try {
-          for (var _iterator53 = components[Symbol.iterator](), _step53; !(_iteratorNormalCompletion53 = (_step53 = _iterator53.next()).done); _iteratorNormalCompletion53 = true) {
-            var tempComponent = _step53.value;
+          for (var _iterator52 = components[Symbol.iterator](), _step52; !(_iteratorNormalCompletion52 = (_step52 = _iterator52.next()).done); _iteratorNormalCompletion52 = true) {
+            var tempComponent = _step52.value;
 
             if (tempComponent != null) {
               var tempComponentId = tempComponent.id;
@@ -3994,16 +3964,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError53 = true;
-          _iteratorError53 = err;
+          _didIteratorError52 = true;
+          _iteratorError52 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion53 && _iterator53.return) {
-              _iterator53.return();
+            if (!_iteratorNormalCompletion52 && _iterator52.return) {
+              _iterator52.return();
             }
           } finally {
-            if (_didIteratorError53) {
-              throw _iteratorError53;
+            if (_didIteratorError52) {
+              throw _iteratorError52;
             }
           }
         }
@@ -4087,58 +4057,58 @@ var ProjectService = function () {
     value: function insertNodeAfterInGroups(nodeIdToInsert, nodeIdToInsertAfter) {
       var groupNodes = this.getGroupNodes();
       if (groupNodes != null) {
-        var _iteratorNormalCompletion54 = true;
-        var _didIteratorError54 = false;
-        var _iteratorError54 = undefined;
+        var _iteratorNormalCompletion53 = true;
+        var _didIteratorError53 = false;
+        var _iteratorError53 = undefined;
 
         try {
-          for (var _iterator54 = groupNodes[Symbol.iterator](), _step54; !(_iteratorNormalCompletion54 = (_step54 = _iterator54.next()).done); _iteratorNormalCompletion54 = true) {
-            var group = _step54.value;
+          for (var _iterator53 = groupNodes[Symbol.iterator](), _step53; !(_iteratorNormalCompletion53 = (_step53 = _iterator53.next()).done); _iteratorNormalCompletion53 = true) {
+            var group = _step53.value;
 
             if (group != null) {
               this.insertNodeAfterInGroup(group, nodeIdToInsert, nodeIdToInsertAfter);
             }
           }
         } catch (err) {
-          _didIteratorError54 = true;
-          _iteratorError54 = err;
+          _didIteratorError53 = true;
+          _iteratorError53 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion54 && _iterator54.return) {
-              _iterator54.return();
+            if (!_iteratorNormalCompletion53 && _iterator53.return) {
+              _iterator53.return();
             }
           } finally {
-            if (_didIteratorError54) {
-              throw _iteratorError54;
+            if (_didIteratorError53) {
+              throw _iteratorError53;
             }
           }
         }
       }
       var inactiveGroupNodes = this.getInactiveGroupNodes();
       if (inactiveGroupNodes != null) {
-        var _iteratorNormalCompletion55 = true;
-        var _didIteratorError55 = false;
-        var _iteratorError55 = undefined;
+        var _iteratorNormalCompletion54 = true;
+        var _didIteratorError54 = false;
+        var _iteratorError54 = undefined;
 
         try {
-          for (var _iterator55 = inactiveGroupNodes[Symbol.iterator](), _step55; !(_iteratorNormalCompletion55 = (_step55 = _iterator55.next()).done); _iteratorNormalCompletion55 = true) {
-            var inactiveGroup = _step55.value;
+          for (var _iterator54 = inactiveGroupNodes[Symbol.iterator](), _step54; !(_iteratorNormalCompletion54 = (_step54 = _iterator54.next()).done); _iteratorNormalCompletion54 = true) {
+            var inactiveGroup = _step54.value;
 
             if (inactiveGroup != null) {
               this.insertNodeAfterInGroup(inactiveGroup, nodeIdToInsert, nodeIdToInsertAfter);
             }
           }
         } catch (err) {
-          _didIteratorError55 = true;
-          _iteratorError55 = err;
+          _didIteratorError54 = true;
+          _iteratorError54 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion55 && _iterator55.return) {
-              _iterator55.return();
+            if (!_iteratorNormalCompletion54 && _iterator54.return) {
+              _iterator54.return();
             }
           } finally {
-            if (_didIteratorError55) {
-              throw _iteratorError55;
+            if (_didIteratorError54) {
+              throw _iteratorError54;
             }
           }
         }
@@ -4230,13 +4200,13 @@ var ProjectService = function () {
             var parentTransitions = this.getTransitionsByFromNodeId(parentGroupId);
 
             if (parentTransitions != null) {
-              var _iteratorNormalCompletion56 = true;
-              var _didIteratorError56 = false;
-              var _iteratorError56 = undefined;
+              var _iteratorNormalCompletion55 = true;
+              var _didIteratorError55 = false;
+              var _iteratorError55 = undefined;
 
               try {
-                for (var _iterator56 = parentTransitions[Symbol.iterator](), _step56; !(_iteratorNormalCompletion56 = (_step56 = _iterator56.next()).done); _iteratorNormalCompletion56 = true) {
-                  var parentTransition = _step56.value;
+                for (var _iterator55 = parentTransitions[Symbol.iterator](), _step55; !(_iteratorNormalCompletion55 = (_step55 = _iterator55.next()).done); _iteratorNormalCompletion55 = true) {
+                  var parentTransition = _step55.value;
 
                   var newTransition = {};
                   if (parentTransition != null) {
@@ -4257,16 +4227,16 @@ var ProjectService = function () {
                   node.transitionLogic.transitions.push(newTransition);
                 }
               } catch (err) {
-                _didIteratorError56 = true;
-                _iteratorError56 = err;
+                _didIteratorError55 = true;
+                _iteratorError55 = err;
               } finally {
                 try {
-                  if (!_iteratorNormalCompletion56 && _iterator56.return) {
-                    _iterator56.return();
+                  if (!_iteratorNormalCompletion55 && _iterator55.return) {
+                    _iterator55.return();
                   }
                 } finally {
-                  if (_didIteratorError56) {
-                    throw _iteratorError56;
+                  if (_didIteratorError55) {
+                    throw _iteratorError55;
                   }
                 }
               }
@@ -4295,13 +4265,13 @@ var ProjectService = function () {
             node.constraints = [];
           }
 
-          var _iteratorNormalCompletion57 = true;
-          var _didIteratorError57 = false;
-          var _iteratorError57 = undefined;
+          var _iteratorNormalCompletion56 = true;
+          var _didIteratorError56 = false;
+          var _iteratorError56 = undefined;
 
           try {
-            for (var _iterator57 = branchPathTakenConstraints[Symbol.iterator](), _step57; !(_iteratorNormalCompletion57 = (_step57 = _iterator57.next()).done); _iteratorNormalCompletion57 = true) {
-              var branchPathTakenConstraint = _step57.value;
+            for (var _iterator56 = branchPathTakenConstraints[Symbol.iterator](), _step56; !(_iteratorNormalCompletion56 = (_step56 = _iterator56.next()).done); _iteratorNormalCompletion56 = true) {
+              var branchPathTakenConstraint = _step56.value;
 
               if (branchPathTakenConstraint != null) {
                 // create a new constraint with the same branch path taken parameters
@@ -4314,16 +4284,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError57 = true;
-            _iteratorError57 = err;
+            _didIteratorError56 = true;
+            _iteratorError56 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion57 && _iterator57.return) {
-                _iterator57.return();
+              if (!_iteratorNormalCompletion56 && _iterator56.return) {
+                _iterator56.return();
               }
             } finally {
-              if (_didIteratorError57) {
-                throw _iteratorError57;
+              if (_didIteratorError56) {
+                throw _iteratorError56;
               }
             }
           }
@@ -4393,67 +4363,67 @@ var ProjectService = function () {
 
         if (previousNodes == null || previousNodes.length == 0) {
           var previousGroups = this.getGroupNodesByToNodeId(nodeIdToInsertInside);
-          var _iteratorNormalCompletion58 = true;
-          var _didIteratorError58 = false;
-          var _iteratorError58 = undefined;
+          var _iteratorNormalCompletion57 = true;
+          var _didIteratorError57 = false;
+          var _iteratorError57 = undefined;
 
           try {
-            for (var _iterator58 = previousGroups[Symbol.iterator](), _step58; !(_iteratorNormalCompletion58 = (_step58 = _iterator58.next()).done); _iteratorNormalCompletion58 = true) {
-              var previousGroup = _step58.value;
+            for (var _iterator57 = previousGroups[Symbol.iterator](), _step57; !(_iteratorNormalCompletion57 = (_step57 = _iterator57.next()).done); _iteratorNormalCompletion57 = true) {
+              var previousGroup = _step57.value;
 
               if (previousGroup != null) {
                 // get the nodes that do not have a transition in the previous group
                 var lastNodesInGroup = this.getLastNodesInGroup(previousGroup.id);
 
-                var _iteratorNormalCompletion59 = true;
-                var _didIteratorError59 = false;
-                var _iteratorError59 = undefined;
+                var _iteratorNormalCompletion58 = true;
+                var _didIteratorError58 = false;
+                var _iteratorError58 = undefined;
 
                 try {
-                  for (var _iterator59 = lastNodesInGroup[Symbol.iterator](), _step59; !(_iteratorNormalCompletion59 = (_step59 = _iterator59.next()).done); _iteratorNormalCompletion59 = true) {
-                    var node = _step59.value;
+                  for (var _iterator58 = lastNodesInGroup[Symbol.iterator](), _step58; !(_iteratorNormalCompletion58 = (_step58 = _iterator58.next()).done); _iteratorNormalCompletion58 = true) {
+                    var node = _step58.value;
 
                     // add a transition from the node to the node we are inserting
                     this.addToTransition(node, nodeIdToInsert);
                   }
                 } catch (err) {
-                  _didIteratorError59 = true;
-                  _iteratorError59 = err;
+                  _didIteratorError58 = true;
+                  _iteratorError58 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion59 && _iterator59.return) {
-                      _iterator59.return();
+                    if (!_iteratorNormalCompletion58 && _iterator58.return) {
+                      _iterator58.return();
                     }
                   } finally {
-                    if (_didIteratorError59) {
-                      throw _iteratorError59;
+                    if (_didIteratorError58) {
+                      throw _iteratorError58;
                     }
                   }
                 }
               }
             }
           } catch (err) {
-            _didIteratorError58 = true;
-            _iteratorError58 = err;
+            _didIteratorError57 = true;
+            _iteratorError57 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion58 && _iterator58.return) {
-                _iterator58.return();
+              if (!_iteratorNormalCompletion57 && _iterator57.return) {
+                _iterator57.return();
               }
             } finally {
-              if (_didIteratorError58) {
-                throw _iteratorError58;
+              if (_didIteratorError57) {
+                throw _iteratorError57;
               }
             }
           }
         } else {
-          var _iteratorNormalCompletion60 = true;
-          var _didIteratorError60 = false;
-          var _iteratorError60 = undefined;
+          var _iteratorNormalCompletion59 = true;
+          var _didIteratorError59 = false;
+          var _iteratorError59 = undefined;
 
           try {
-            for (var _iterator60 = previousNodes[Symbol.iterator](), _step60; !(_iteratorNormalCompletion60 = (_step60 = _iterator60.next()).done); _iteratorNormalCompletion60 = true) {
-              var previousNode = _step60.value;
+            for (var _iterator59 = previousNodes[Symbol.iterator](), _step59; !(_iteratorNormalCompletion59 = (_step59 = _iterator59.next()).done); _iteratorNormalCompletion59 = true) {
+              var previousNode = _step59.value;
 
               if (previousNode != null && previousNode.id != 'group0') {
                 // change the transition to point to the node we are inserting
@@ -4461,16 +4431,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError60 = true;
-            _iteratorError60 = err;
+            _didIteratorError59 = true;
+            _iteratorError59 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion60 && _iterator60.return) {
-                _iterator60.return();
+              if (!_iteratorNormalCompletion59 && _iterator59.return) {
+                _iterator59.return();
               }
             } finally {
-              if (_didIteratorError60) {
-                throw _iteratorError60;
+              if (_didIteratorError59) {
+                throw _iteratorError59;
               }
             }
           }
@@ -4483,29 +4453,29 @@ var ProjectService = function () {
         var nodesThatTransitionToGroup = this.getNodesByToNodeId(nodeIdToInsertInside);
 
         if (nodesThatTransitionToGroup != null) {
-          var _iteratorNormalCompletion61 = true;
-          var _didIteratorError61 = false;
-          var _iteratorError61 = undefined;
+          var _iteratorNormalCompletion60 = true;
+          var _didIteratorError60 = false;
+          var _iteratorError60 = undefined;
 
           try {
-            for (var _iterator61 = nodesThatTransitionToGroup[Symbol.iterator](), _step61; !(_iteratorNormalCompletion61 = (_step61 = _iterator61.next()).done); _iteratorNormalCompletion61 = true) {
-              var nodeThatTransitionsToGroup = _step61.value;
+            for (var _iterator60 = nodesThatTransitionToGroup[Symbol.iterator](), _step60; !(_iteratorNormalCompletion60 = (_step60 = _iterator60.next()).done); _iteratorNormalCompletion60 = true) {
+              var nodeThatTransitionsToGroup = _step60.value;
 
               if (!this.isGroupNode(nodeThatTransitionsToGroup.id)) {
                 this.updateToTransition(nodeThatTransitionsToGroup, nodeIdToInsertInside, nodeIdToInsert);
               }
             }
           } catch (err) {
-            _didIteratorError61 = true;
-            _iteratorError61 = err;
+            _didIteratorError60 = true;
+            _iteratorError60 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion61 && _iterator61.return) {
-                _iterator61.return();
+              if (!_iteratorNormalCompletion60 && _iterator60.return) {
+                _iterator60.return();
               }
             } finally {
-              if (_didIteratorError61) {
-                throw _iteratorError61;
+              if (_didIteratorError60) {
+                throw _iteratorError60;
               }
             }
           }
@@ -4551,13 +4521,13 @@ var ProjectService = function () {
           var parentTransitions = this.getTransitionsByFromNodeId(nodeIdToInsertInside);
 
           if (parentTransitions != null) {
-            var _iteratorNormalCompletion62 = true;
-            var _didIteratorError62 = false;
-            var _iteratorError62 = undefined;
+            var _iteratorNormalCompletion61 = true;
+            var _didIteratorError61 = false;
+            var _iteratorError61 = undefined;
 
             try {
-              for (var _iterator62 = parentTransitions[Symbol.iterator](), _step62; !(_iteratorNormalCompletion62 = (_step62 = _iterator62.next()).done); _iteratorNormalCompletion62 = true) {
-                var parentTransition = _step62.value;
+              for (var _iterator61 = parentTransitions[Symbol.iterator](), _step61; !(_iteratorNormalCompletion61 = (_step61 = _iterator61.next()).done); _iteratorNormalCompletion61 = true) {
+                var parentTransition = _step61.value;
 
                 if (parentTransition != null) {
                   var toNodeId = parentTransition.to;
@@ -4587,16 +4557,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError62 = true;
-              _iteratorError62 = err;
+              _didIteratorError61 = true;
+              _iteratorError61 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion62 && _iterator62.return) {
-                  _iterator62.return();
+                if (!_iteratorNormalCompletion61 && _iterator61.return) {
+                  _iterator61.return();
                 }
               } finally {
-                if (_didIteratorError62) {
-                  throw _iteratorError62;
+                if (_didIteratorError61) {
+                  throw _iteratorError61;
                 }
               }
             }
@@ -4652,13 +4622,13 @@ var ProjectService = function () {
         }
 
         var transitions = node.transitionLogic.transitions;
-        var _iteratorNormalCompletion63 = true;
-        var _didIteratorError63 = false;
-        var _iteratorError63 = undefined;
+        var _iteratorNormalCompletion62 = true;
+        var _didIteratorError62 = false;
+        var _iteratorError62 = undefined;
 
         try {
-          for (var _iterator63 = transitions[Symbol.iterator](), _step63; !(_iteratorNormalCompletion63 = (_step63 = _iterator63.next()).done); _iteratorNormalCompletion63 = true) {
-            var transition = _step63.value;
+          for (var _iterator62 = transitions[Symbol.iterator](), _step62; !(_iteratorNormalCompletion62 = (_step62 = _iterator62.next()).done); _iteratorNormalCompletion62 = true) {
+            var transition = _step62.value;
 
             if (transition != null) {
               var toNodeId = transition.to;
@@ -4668,16 +4638,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError63 = true;
-          _iteratorError63 = err;
+          _didIteratorError62 = true;
+          _iteratorError62 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion63 && _iterator63.return) {
-              _iterator63.return();
+            if (!_iteratorNormalCompletion62 && _iterator62.return) {
+              _iterator62.return();
             }
           } finally {
-            if (_didIteratorError63) {
-              throw _iteratorError63;
+            if (_didIteratorError62) {
+              throw _iteratorError62;
             }
           }
         }
@@ -4699,13 +4669,13 @@ var ProjectService = function () {
         if (group != null) {
           var childIds = group.ids;
           if (childIds != null) {
-            var _iteratorNormalCompletion64 = true;
-            var _didIteratorError64 = false;
-            var _iteratorError64 = undefined;
+            var _iteratorNormalCompletion63 = true;
+            var _didIteratorError63 = false;
+            var _iteratorError63 = undefined;
 
             try {
-              for (var _iterator64 = childIds[Symbol.iterator](), _step64; !(_iteratorNormalCompletion64 = (_step64 = _iterator64.next()).done); _iteratorNormalCompletion64 = true) {
-                var childId = _step64.value;
+              for (var _iterator63 = childIds[Symbol.iterator](), _step63; !(_iteratorNormalCompletion63 = (_step63 = _iterator63.next()).done); _iteratorNormalCompletion63 = true) {
+                var childId = _step63.value;
 
                 if (childId != null) {
                   var child = this.getNodeById(childId);
@@ -4721,16 +4691,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError64 = true;
-              _iteratorError64 = err;
+              _didIteratorError63 = true;
+              _iteratorError63 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion64 && _iterator64.return) {
-                  _iterator64.return();
+                if (!_iteratorNormalCompletion63 && _iterator63.return) {
+                  _iterator63.return();
                 }
               } finally {
-                if (_didIteratorError64) {
-                  throw _iteratorError64;
+                if (_didIteratorError63) {
+                  throw _iteratorError63;
                 }
               }
             }
@@ -4750,13 +4720,13 @@ var ProjectService = function () {
     value: function getNextAvailableGroupId() {
       var groupIds = this.getGroupIds();
       var largestGroupIdNumber = null;
-      var _iteratorNormalCompletion65 = true;
-      var _didIteratorError65 = false;
-      var _iteratorError65 = undefined;
+      var _iteratorNormalCompletion64 = true;
+      var _didIteratorError64 = false;
+      var _iteratorError64 = undefined;
 
       try {
-        for (var _iterator65 = groupIds[Symbol.iterator](), _step65; !(_iteratorNormalCompletion65 = (_step65 = _iterator65.next()).done); _iteratorNormalCompletion65 = true) {
-          var groupId = _step65.value;
+        for (var _iterator64 = groupIds[Symbol.iterator](), _step64; !(_iteratorNormalCompletion64 = (_step64 = _iterator64.next()).done); _iteratorNormalCompletion64 = true) {
+          var groupId = _step64.value;
 
           // get the number from the group id e.g. the number of 'group2' would be 2
           var groupIdNumber = groupId.replace('group', '');
@@ -4774,16 +4744,16 @@ var ProjectService = function () {
           }
         }
       } catch (err) {
-        _didIteratorError65 = true;
-        _iteratorError65 = err;
+        _didIteratorError64 = true;
+        _iteratorError64 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion65 && _iterator65.return) {
-            _iterator65.return();
+          if (!_iteratorNormalCompletion64 && _iterator64.return) {
+            _iterator64.return();
           }
         } finally {
-          if (_didIteratorError65) {
-            throw _iteratorError65;
+          if (_didIteratorError64) {
+            throw _iteratorError64;
           }
         }
       }
@@ -4803,13 +4773,13 @@ var ProjectService = function () {
       var groupIds = [];
 
       var groupNodes = this.groupNodes;
-      var _iteratorNormalCompletion66 = true;
-      var _didIteratorError66 = false;
-      var _iteratorError66 = undefined;
+      var _iteratorNormalCompletion65 = true;
+      var _didIteratorError65 = false;
+      var _iteratorError65 = undefined;
 
       try {
-        for (var _iterator66 = groupNodes[Symbol.iterator](), _step66; !(_iteratorNormalCompletion66 = (_step66 = _iterator66.next()).done); _iteratorNormalCompletion66 = true) {
-          var group = _step66.value;
+        for (var _iterator65 = groupNodes[Symbol.iterator](), _step65; !(_iteratorNormalCompletion65 = (_step65 = _iterator65.next()).done); _iteratorNormalCompletion65 = true) {
+          var group = _step65.value;
 
           if (group != null) {
             var groupId = group.id;
@@ -4819,28 +4789,28 @@ var ProjectService = function () {
           }
         }
       } catch (err) {
-        _didIteratorError66 = true;
-        _iteratorError66 = err;
+        _didIteratorError65 = true;
+        _iteratorError65 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion66 && _iterator66.return) {
-            _iterator66.return();
+          if (!_iteratorNormalCompletion65 && _iterator65.return) {
+            _iterator65.return();
           }
         } finally {
-          if (_didIteratorError66) {
-            throw _iteratorError66;
+          if (_didIteratorError65) {
+            throw _iteratorError65;
           }
         }
       }
 
       var inactiveGroupNodes = this.getInactiveGroupNodes();
-      var _iteratorNormalCompletion67 = true;
-      var _didIteratorError67 = false;
-      var _iteratorError67 = undefined;
+      var _iteratorNormalCompletion66 = true;
+      var _didIteratorError66 = false;
+      var _iteratorError66 = undefined;
 
       try {
-        for (var _iterator67 = inactiveGroupNodes[Symbol.iterator](), _step67; !(_iteratorNormalCompletion67 = (_step67 = _iterator67.next()).done); _iteratorNormalCompletion67 = true) {
-          var inactiveGroup = _step67.value;
+        for (var _iterator66 = inactiveGroupNodes[Symbol.iterator](), _step66; !(_iteratorNormalCompletion66 = (_step66 = _iterator66.next()).done); _iteratorNormalCompletion66 = true) {
+          var inactiveGroup = _step66.value;
 
           if (inactiveGroup != null) {
             var inactiveGroupId = inactiveGroup.id;
@@ -4850,16 +4820,16 @@ var ProjectService = function () {
           }
         }
       } catch (err) {
-        _didIteratorError67 = true;
-        _iteratorError67 = err;
+        _didIteratorError66 = true;
+        _iteratorError66 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion67 && _iterator67.return) {
-            _iterator67.return();
+          if (!_iteratorNormalCompletion66 && _iterator66.return) {
+            _iterator66.return();
           }
         } finally {
-          if (_didIteratorError67) {
-            throw _iteratorError67;
+          if (_didIteratorError66) {
+            throw _iteratorError66;
           }
         }
       }
@@ -4888,13 +4858,13 @@ var ProjectService = function () {
       var nodeIds = this.getNodeIds();
       var largestNodeIdNumber = null;
 
-      var _iteratorNormalCompletion68 = true;
-      var _didIteratorError68 = false;
-      var _iteratorError68 = undefined;
+      var _iteratorNormalCompletion67 = true;
+      var _didIteratorError67 = false;
+      var _iteratorError67 = undefined;
 
       try {
-        for (var _iterator68 = nodeIds[Symbol.iterator](), _step68; !(_iteratorNormalCompletion68 = (_step68 = _iterator68.next()).done); _iteratorNormalCompletion68 = true) {
-          var nodeId = _step68.value;
+        for (var _iterator67 = nodeIds[Symbol.iterator](), _step67; !(_iteratorNormalCompletion67 = (_step67 = _iterator67.next()).done); _iteratorNormalCompletion67 = true) {
+          var nodeId = _step67.value;
 
           // get the number from the node id e.g. the number of 'node2' would be 2
           var _nodeIdNumber = nodeId.replace('node', '');
@@ -4912,28 +4882,28 @@ var ProjectService = function () {
           }
         }
       } catch (err) {
-        _didIteratorError68 = true;
-        _iteratorError68 = err;
+        _didIteratorError67 = true;
+        _iteratorError67 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion68 && _iterator68.return) {
-            _iterator68.return();
+          if (!_iteratorNormalCompletion67 && _iterator67.return) {
+            _iterator67.return();
           }
         } finally {
-          if (_didIteratorError68) {
-            throw _iteratorError68;
+          if (_didIteratorError67) {
+            throw _iteratorError67;
           }
         }
       }
 
       var inactiveNodeIds = this.getInactiveNodeIds();
-      var _iteratorNormalCompletion69 = true;
-      var _didIteratorError69 = false;
-      var _iteratorError69 = undefined;
+      var _iteratorNormalCompletion68 = true;
+      var _didIteratorError68 = false;
+      var _iteratorError68 = undefined;
 
       try {
-        for (var _iterator69 = inactiveNodeIds[Symbol.iterator](), _step69; !(_iteratorNormalCompletion69 = (_step69 = _iterator69.next()).done); _iteratorNormalCompletion69 = true) {
-          var inactiveNodeId = _step69.value;
+        for (var _iterator68 = inactiveNodeIds[Symbol.iterator](), _step68; !(_iteratorNormalCompletion68 = (_step68 = _iterator68.next()).done); _iteratorNormalCompletion68 = true) {
+          var inactiveNodeId = _step68.value;
 
           // get the number from the node id e.g. the number of 'node2' would be 2
           var _nodeIdNumber2 = inactiveNodeId.replace('node', '');
@@ -4951,16 +4921,16 @@ var ProjectService = function () {
           }
         }
       } catch (err) {
-        _didIteratorError69 = true;
-        _iteratorError69 = err;
+        _didIteratorError68 = true;
+        _iteratorError68 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion69 && _iterator69.return) {
-            _iterator69.return();
+          if (!_iteratorNormalCompletion68 && _iterator68.return) {
+            _iterator68.return();
           }
         } finally {
-          if (_didIteratorError69) {
-            throw _iteratorError69;
+          if (_didIteratorError68) {
+            throw _iteratorError68;
           }
         }
       }
@@ -4968,13 +4938,13 @@ var ProjectService = function () {
       if (nodeIdsToSkip != null) {
         // there are node ids to skip
 
-        var _iteratorNormalCompletion70 = true;
-        var _didIteratorError70 = false;
-        var _iteratorError70 = undefined;
+        var _iteratorNormalCompletion69 = true;
+        var _didIteratorError69 = false;
+        var _iteratorError69 = undefined;
 
         try {
-          for (var _iterator70 = nodeIdsToSkip[Symbol.iterator](), _step70; !(_iteratorNormalCompletion70 = (_step70 = _iterator70.next()).done); _iteratorNormalCompletion70 = true) {
-            var nodeIdToSkip = _step70.value;
+          for (var _iterator69 = nodeIdsToSkip[Symbol.iterator](), _step69; !(_iteratorNormalCompletion69 = (_step69 = _iterator69.next()).done); _iteratorNormalCompletion69 = true) {
+            var nodeIdToSkip = _step69.value;
 
             // get the number from the node id e.g. the number of 'node2' would be 2
             var nodeIdNumber = nodeIdToSkip.replace('node', '');
@@ -4992,16 +4962,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError70 = true;
-          _iteratorError70 = err;
+          _didIteratorError69 = true;
+          _iteratorError69 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion70 && _iterator70.return) {
-              _iterator70.return();
+            if (!_iteratorNormalCompletion69 && _iterator69.return) {
+              _iterator69.return();
             }
           } finally {
-            if (_didIteratorError70) {
-              throw _iteratorError70;
+            if (_didIteratorError69) {
+              throw _iteratorError69;
             }
           }
         }
@@ -5020,13 +4990,13 @@ var ProjectService = function () {
     key: 'getNodeIds',
     value: function getNodeIds() {
       var nodeIds = [];
-      var _iteratorNormalCompletion71 = true;
-      var _didIteratorError71 = false;
-      var _iteratorError71 = undefined;
+      var _iteratorNormalCompletion70 = true;
+      var _didIteratorError70 = false;
+      var _iteratorError70 = undefined;
 
       try {
-        for (var _iterator71 = this.applicationNodes[Symbol.iterator](), _step71; !(_iteratorNormalCompletion71 = (_step71 = _iterator71.next()).done); _iteratorNormalCompletion71 = true) {
-          var node = _step71.value;
+        for (var _iterator70 = this.applicationNodes[Symbol.iterator](), _step70; !(_iteratorNormalCompletion70 = (_step70 = _iterator70.next()).done); _iteratorNormalCompletion70 = true) {
+          var node = _step70.value;
 
           if (node != null) {
             var nodeId = node.id;
@@ -5036,16 +5006,16 @@ var ProjectService = function () {
           }
         }
       } catch (err) {
-        _didIteratorError71 = true;
-        _iteratorError71 = err;
+        _didIteratorError70 = true;
+        _iteratorError70 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion71 && _iterator71.return) {
-            _iterator71.return();
+          if (!_iteratorNormalCompletion70 && _iterator70.return) {
+            _iterator70.return();
           }
         } finally {
-          if (_didIteratorError71) {
-            throw _iteratorError71;
+          if (_didIteratorError70) {
+            throw _iteratorError70;
           }
         }
       }
@@ -5064,13 +5034,13 @@ var ProjectService = function () {
       var nodeIds = [];
       var inactiveNodes = this.project.inactiveNodes;
       if (inactiveNodes != null) {
-        var _iteratorNormalCompletion72 = true;
-        var _didIteratorError72 = false;
-        var _iteratorError72 = undefined;
+        var _iteratorNormalCompletion71 = true;
+        var _didIteratorError71 = false;
+        var _iteratorError71 = undefined;
 
         try {
-          for (var _iterator72 = inactiveNodes[Symbol.iterator](), _step72; !(_iteratorNormalCompletion72 = (_step72 = _iterator72.next()).done); _iteratorNormalCompletion72 = true) {
-            var inactiveNode = _step72.value;
+          for (var _iterator71 = inactiveNodes[Symbol.iterator](), _step71; !(_iteratorNormalCompletion71 = (_step71 = _iterator71.next()).done); _iteratorNormalCompletion71 = true) {
+            var inactiveNode = _step71.value;
 
             if (inactiveNode != null) {
               var nodeId = inactiveNode.id;
@@ -5080,16 +5050,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError72 = true;
-          _iteratorError72 = err;
+          _didIteratorError71 = true;
+          _iteratorError71 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion72 && _iterator72.return) {
-              _iterator72.return();
+            if (!_iteratorNormalCompletion71 && _iterator71.return) {
+              _iterator71.return();
             }
           } finally {
-            if (_didIteratorError72) {
-              throw _iteratorError72;
+            if (_didIteratorError71) {
+              throw _iteratorError71;
             }
           }
         }
@@ -5217,13 +5187,13 @@ var ProjectService = function () {
     value: function moveNodesAfter(nodeIds, nodeId) {
       var movedNodes = [];
 
-      var _iteratorNormalCompletion73 = true;
-      var _didIteratorError73 = false;
-      var _iteratorError73 = undefined;
+      var _iteratorNormalCompletion72 = true;
+      var _didIteratorError72 = false;
+      var _iteratorError72 = undefined;
 
       try {
-        for (var _iterator73 = nodeIds[Symbol.iterator](), _step73; !(_iteratorNormalCompletion73 = (_step73 = _iterator73.next()).done); _iteratorNormalCompletion73 = true) {
-          var tempNodeId = _step73.value;
+        for (var _iterator72 = nodeIds[Symbol.iterator](), _step72; !(_iteratorNormalCompletion72 = (_step72 = _iterator72.next()).done); _iteratorNormalCompletion72 = true) {
+          var tempNodeId = _step72.value;
 
           var node = this.getNodeById(tempNodeId);
           movedNodes.push(node);
@@ -5262,16 +5232,16 @@ var ProjectService = function () {
           nodeId = node.id;
         }
       } catch (err) {
-        _didIteratorError73 = true;
-        _iteratorError73 = err;
+        _didIteratorError72 = true;
+        _iteratorError72 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion73 && _iterator73.return) {
-            _iterator73.return();
+          if (!_iteratorNormalCompletion72 && _iterator72.return) {
+            _iterator72.return();
           }
         } finally {
-          if (_didIteratorError73) {
-            throw _iteratorError73;
+          if (_didIteratorError72) {
+            throw _iteratorError72;
           }
         }
       }
@@ -5295,29 +5265,29 @@ var ProjectService = function () {
       nodeCopy.constraints = []; // clear constraints
 
       var newComponentIds = [];
-      var _iteratorNormalCompletion74 = true;
-      var _didIteratorError74 = false;
-      var _iteratorError74 = undefined;
+      var _iteratorNormalCompletion73 = true;
+      var _didIteratorError73 = false;
+      var _iteratorError73 = undefined;
 
       try {
-        for (var _iterator74 = nodeCopy.components[Symbol.iterator](), _step74; !(_iteratorNormalCompletion74 = (_step74 = _iterator74.next()).done); _iteratorNormalCompletion74 = true) {
-          var component = _step74.value;
+        for (var _iterator73 = nodeCopy.components[Symbol.iterator](), _step73; !(_iteratorNormalCompletion73 = (_step73 = _iterator73.next()).done); _iteratorNormalCompletion73 = true) {
+          var component = _step73.value;
 
           var newComponentId = this.getUnusedComponentId(newComponentIds);
           newComponentIds.push(newComponentId);
           component.id = newComponentId;
         }
       } catch (err) {
-        _didIteratorError74 = true;
-        _iteratorError74 = err;
+        _didIteratorError73 = true;
+        _iteratorError73 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion74 && _iterator74.return) {
-            _iterator74.return();
+          if (!_iteratorNormalCompletion73 && _iterator73.return) {
+            _iterator73.return();
           }
         } finally {
-          if (_didIteratorError74) {
-            throw _iteratorError74;
+          if (_didIteratorError73) {
+            throw _iteratorError73;
           }
         }
       }
@@ -5538,13 +5508,13 @@ var ProjectService = function () {
             // the node we are removing is the start node
 
             if (nodeToRemoveTransitions != null && nodeToRemoveTransitions.length > 0) {
-              var _iteratorNormalCompletion75 = true;
-              var _didIteratorError75 = false;
-              var _iteratorError75 = undefined;
+              var _iteratorNormalCompletion74 = true;
+              var _didIteratorError74 = false;
+              var _iteratorError74 = undefined;
 
               try {
-                for (var _iterator75 = nodeToRemoveTransitions[Symbol.iterator](), _step75; !(_iteratorNormalCompletion75 = (_step75 = _iterator75.next()).done); _iteratorNormalCompletion75 = true) {
-                  var nodeToRemoveTransition = _step75.value;
+                for (var _iterator74 = nodeToRemoveTransitions[Symbol.iterator](), _step74; !(_iteratorNormalCompletion74 = (_step74 = _iterator74.next()).done); _iteratorNormalCompletion74 = true) {
+                  var nodeToRemoveTransition = _step74.value;
 
                   if (nodeToRemoveTransition != null) {
                     var toNodeId = nodeToRemoveTransition.to;
@@ -5563,16 +5533,16 @@ var ProjectService = function () {
                   }
                 }
               } catch (err) {
-                _didIteratorError75 = true;
-                _iteratorError75 = err;
+                _didIteratorError74 = true;
+                _iteratorError74 = err;
               } finally {
                 try {
-                  if (!_iteratorNormalCompletion75 && _iterator75.return) {
-                    _iterator75.return();
+                  if (!_iteratorNormalCompletion74 && _iterator74.return) {
+                    _iterator74.return();
                   }
                 } finally {
-                  if (_didIteratorError75) {
-                    throw _iteratorError75;
+                  if (_didIteratorError74) {
+                    throw _iteratorError74;
                   }
                 }
               }
@@ -5637,22 +5607,22 @@ var ProjectService = function () {
                   var nodeIdsInBranch = this.getNodeIdsInBranch(node.id, nodeId);
 
                   if (nodeIdsInBranch != null) {
-                    var _iteratorNormalCompletion76 = true;
-                    var _didIteratorError76 = false;
-                    var _iteratorError76 = undefined;
+                    var _iteratorNormalCompletion75 = true;
+                    var _didIteratorError75 = false;
+                    var _iteratorError75 = undefined;
 
                     try {
-                      for (var _iterator76 = nodeIdsInBranch[Symbol.iterator](), _step76; !(_iteratorNormalCompletion76 = (_step76 = _iterator76.next()).done); _iteratorNormalCompletion76 = true) {
-                        var nodeIdInBranch = _step76.value;
+                      for (var _iterator75 = nodeIdsInBranch[Symbol.iterator](), _step75; !(_iteratorNormalCompletion75 = (_step75 = _iterator75.next()).done); _iteratorNormalCompletion75 = true) {
+                        var nodeIdInBranch = _step75.value;
 
                         var nodeInBranch = this.getNodeById(nodeIdInBranch);
-                        var _iteratorNormalCompletion77 = true;
-                        var _didIteratorError77 = false;
-                        var _iteratorError77 = undefined;
+                        var _iteratorNormalCompletion76 = true;
+                        var _didIteratorError76 = false;
+                        var _iteratorError76 = undefined;
 
                         try {
-                          for (var _iterator77 = transitionsCopy[Symbol.iterator](), _step77; !(_iteratorNormalCompletion77 = (_step77 = _iterator77.next()).done); _iteratorNormalCompletion77 = true) {
-                            var transitionCopy = _step77.value;
+                          for (var _iterator76 = transitionsCopy[Symbol.iterator](), _step76; !(_iteratorNormalCompletion76 = (_step76 = _iterator76.next()).done); _iteratorNormalCompletion76 = true) {
+                            var transitionCopy = _step76.value;
 
                             if (transitionCopy != null) {
                               var currentFromNodeId = node.id;
@@ -5668,31 +5638,31 @@ var ProjectService = function () {
                             }
                           }
                         } catch (err) {
-                          _didIteratorError77 = true;
-                          _iteratorError77 = err;
+                          _didIteratorError76 = true;
+                          _iteratorError76 = err;
                         } finally {
                           try {
-                            if (!_iteratorNormalCompletion77 && _iterator77.return) {
-                              _iterator77.return();
+                            if (!_iteratorNormalCompletion76 && _iterator76.return) {
+                              _iterator76.return();
                             }
                           } finally {
-                            if (_didIteratorError77) {
-                              throw _iteratorError77;
+                            if (_didIteratorError76) {
+                              throw _iteratorError76;
                             }
                           }
                         }
                       }
                     } catch (err) {
-                      _didIteratorError76 = true;
-                      _iteratorError76 = err;
+                      _didIteratorError75 = true;
+                      _iteratorError75 = err;
                     } finally {
                       try {
-                        if (!_iteratorNormalCompletion76 && _iterator76.return) {
-                          _iterator76.return();
+                        if (!_iteratorNormalCompletion75 && _iterator75.return) {
+                          _iterator75.return();
                         }
                       } finally {
-                        if (_didIteratorError76) {
-                          throw _iteratorError76;
+                        if (_didIteratorError75) {
+                          throw _iteratorError75;
                         }
                       }
                     }
@@ -5704,13 +5674,13 @@ var ProjectService = function () {
                    */
                   var branches = this.getBranchesByBranchStartPointNodeId(nodeId);
 
-                  var _iteratorNormalCompletion78 = true;
-                  var _didIteratorError78 = false;
-                  var _iteratorError78 = undefined;
+                  var _iteratorNormalCompletion77 = true;
+                  var _didIteratorError77 = false;
+                  var _iteratorError77 = undefined;
 
                   try {
-                    for (var _iterator78 = branches[Symbol.iterator](), _step78; !(_iteratorNormalCompletion78 = (_step78 = _iterator78.next()).done); _iteratorNormalCompletion78 = true) {
-                      var branch = _step78.value;
+                    for (var _iterator77 = branches[Symbol.iterator](), _step77; !(_iteratorNormalCompletion77 = (_step77 = _iterator77.next()).done); _iteratorNormalCompletion77 = true) {
+                      var branch = _step77.value;
 
                       if (branch != null) {
                         /*
@@ -5720,57 +5690,57 @@ var ProjectService = function () {
                         var branchPaths = branch.branchPaths;
 
                         if (branchPaths != null) {
-                          var _iteratorNormalCompletion79 = true;
-                          var _didIteratorError79 = false;
-                          var _iteratorError79 = undefined;
+                          var _iteratorNormalCompletion78 = true;
+                          var _didIteratorError78 = false;
+                          var _iteratorError78 = undefined;
 
                           try {
-                            for (var _iterator79 = branchPaths[Symbol.iterator](), _step79; !(_iteratorNormalCompletion79 = (_step79 = _iterator79.next()).done); _iteratorNormalCompletion79 = true) {
-                              var branchPath = _step79.value;
+                            for (var _iterator78 = branchPaths[Symbol.iterator](), _step78; !(_iteratorNormalCompletion78 = (_step78 = _iterator78.next()).done); _iteratorNormalCompletion78 = true) {
+                              var branchPath = _step78.value;
 
                               if (branchPath != null) {
                                 var _currentFromNodeId = nodeId;
                                 var _currentToNodeId = branchPath[0];
                                 var _newFromNodeId = node.id;
                                 var _newToNodeId = branchPath[0];
-                                var _iteratorNormalCompletion80 = true;
-                                var _didIteratorError80 = false;
-                                var _iteratorError80 = undefined;
+                                var _iteratorNormalCompletion79 = true;
+                                var _didIteratorError79 = false;
+                                var _iteratorError79 = undefined;
 
                                 try {
-                                  for (var _iterator80 = branchPath[Symbol.iterator](), _step80; !(_iteratorNormalCompletion80 = (_step80 = _iterator80.next()).done); _iteratorNormalCompletion80 = true) {
-                                    var branchPathNodeId = _step80.value;
+                                  for (var _iterator79 = branchPath[Symbol.iterator](), _step79; !(_iteratorNormalCompletion79 = (_step79 = _iterator79.next()).done); _iteratorNormalCompletion79 = true) {
+                                    var branchPathNodeId = _step79.value;
 
                                     var branchPathNode = this.getNodeById(branchPathNodeId);
                                     this.updateBranchPathTakenConstraint(branchPathNode, _currentFromNodeId, _currentToNodeId, _newFromNodeId, _newToNodeId);
                                   }
                                 } catch (err) {
-                                  _didIteratorError80 = true;
-                                  _iteratorError80 = err;
+                                  _didIteratorError79 = true;
+                                  _iteratorError79 = err;
                                 } finally {
                                   try {
-                                    if (!_iteratorNormalCompletion80 && _iterator80.return) {
-                                      _iterator80.return();
+                                    if (!_iteratorNormalCompletion79 && _iterator79.return) {
+                                      _iterator79.return();
                                     }
                                   } finally {
-                                    if (_didIteratorError80) {
-                                      throw _iteratorError80;
+                                    if (_didIteratorError79) {
+                                      throw _iteratorError79;
                                     }
                                   }
                                 }
                               }
                             }
                           } catch (err) {
-                            _didIteratorError79 = true;
-                            _iteratorError79 = err;
+                            _didIteratorError78 = true;
+                            _iteratorError78 = err;
                           } finally {
                             try {
-                              if (!_iteratorNormalCompletion79 && _iterator79.return) {
-                                _iterator79.return();
+                              if (!_iteratorNormalCompletion78 && _iterator78.return) {
+                                _iterator78.return();
                               }
                             } finally {
-                              if (_didIteratorError79) {
-                                throw _iteratorError79;
+                              if (_didIteratorError78) {
+                                throw _iteratorError78;
                               }
                             }
                           }
@@ -5778,16 +5748,16 @@ var ProjectService = function () {
                       }
                     }
                   } catch (err) {
-                    _didIteratorError78 = true;
-                    _iteratorError78 = err;
+                    _didIteratorError77 = true;
+                    _iteratorError77 = err;
                   } finally {
                     try {
-                      if (!_iteratorNormalCompletion78 && _iterator78.return) {
-                        _iterator78.return();
+                      if (!_iteratorNormalCompletion77 && _iterator77.return) {
+                        _iterator77.return();
                       }
                     } finally {
-                      if (_didIteratorError78) {
-                        throw _iteratorError78;
+                      if (_didIteratorError77) {
+                        throw _iteratorError77;
                       }
                     }
                   }
@@ -5825,29 +5795,29 @@ var ProjectService = function () {
                    *     }
                    * ]
                    */
-                  var _iteratorNormalCompletion81 = true;
-                  var _didIteratorError81 = false;
-                  var _iteratorError81 = undefined;
+                  var _iteratorNormalCompletion80 = true;
+                  var _didIteratorError80 = false;
+                  var _iteratorError80 = undefined;
 
                   try {
-                    for (var _iterator81 = transitionsCopy[Symbol.iterator](), _step81; !(_iteratorNormalCompletion81 = (_step81 = _iterator81.next()).done); _iteratorNormalCompletion81 = true) {
-                      var _transitionCopy = _step81.value;
+                    for (var _iterator80 = transitionsCopy[Symbol.iterator](), _step80; !(_iteratorNormalCompletion80 = (_step80 = _iterator80.next()).done); _iteratorNormalCompletion80 = true) {
+                      var _transitionCopy = _step80.value;
 
                       // insert a transition from the node we are removing
                       transitions.splice(insertIndex, 0, _transitionCopy);
                       insertIndex++;
                     }
                   } catch (err) {
-                    _didIteratorError81 = true;
-                    _iteratorError81 = err;
+                    _didIteratorError80 = true;
+                    _iteratorError80 = err;
                   } finally {
                     try {
-                      if (!_iteratorNormalCompletion81 && _iterator81.return) {
-                        _iterator81.return();
+                      if (!_iteratorNormalCompletion80 && _iterator80.return) {
+                        _iterator80.return();
                       }
                     } finally {
-                      if (_didIteratorError81) {
-                        throw _iteratorError81;
+                      if (_didIteratorError80) {
+                        throw _iteratorError80;
                       }
                     }
                   }
@@ -5906,53 +5876,53 @@ var ProjectService = function () {
      */
     value: function removeNodeIdFromGroups(nodeId) {
       var groups = this.getGroupNodes();
-      var _iteratorNormalCompletion82 = true;
-      var _didIteratorError82 = false;
-      var _iteratorError82 = undefined;
+      var _iteratorNormalCompletion81 = true;
+      var _didIteratorError81 = false;
+      var _iteratorError81 = undefined;
 
       try {
-        for (var _iterator82 = groups[Symbol.iterator](), _step82; !(_iteratorNormalCompletion82 = (_step82 = _iterator82.next()).done); _iteratorNormalCompletion82 = true) {
-          var group = _step82.value;
+        for (var _iterator81 = groups[Symbol.iterator](), _step81; !(_iteratorNormalCompletion81 = (_step81 = _iterator81.next()).done); _iteratorNormalCompletion81 = true) {
+          var group = _step81.value;
 
           this.removeNodeIdFromGroup(group, nodeId);
         }
       } catch (err) {
-        _didIteratorError82 = true;
-        _iteratorError82 = err;
+        _didIteratorError81 = true;
+        _iteratorError81 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion82 && _iterator82.return) {
-            _iterator82.return();
+          if (!_iteratorNormalCompletion81 && _iterator81.return) {
+            _iterator81.return();
           }
         } finally {
-          if (_didIteratorError82) {
-            throw _iteratorError82;
+          if (_didIteratorError81) {
+            throw _iteratorError81;
           }
         }
       }
 
       var inactiveGroups = this.getInactiveGroupNodes();
-      var _iteratorNormalCompletion83 = true;
-      var _didIteratorError83 = false;
-      var _iteratorError83 = undefined;
+      var _iteratorNormalCompletion82 = true;
+      var _didIteratorError82 = false;
+      var _iteratorError82 = undefined;
 
       try {
-        for (var _iterator83 = inactiveGroups[Symbol.iterator](), _step83; !(_iteratorNormalCompletion83 = (_step83 = _iterator83.next()).done); _iteratorNormalCompletion83 = true) {
-          var inactiveGroup = _step83.value;
+        for (var _iterator82 = inactiveGroups[Symbol.iterator](), _step82; !(_iteratorNormalCompletion82 = (_step82 = _iterator82.next()).done); _iteratorNormalCompletion82 = true) {
+          var inactiveGroup = _step82.value;
 
           this.removeNodeIdFromGroup(inactiveGroup, nodeId);
         }
       } catch (err) {
-        _didIteratorError83 = true;
-        _iteratorError83 = err;
+        _didIteratorError82 = true;
+        _iteratorError82 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion83 && _iterator83.return) {
-            _iterator83.return();
+          if (!_iteratorNormalCompletion82 && _iterator82.return) {
+            _iterator82.return();
           }
         } finally {
-          if (_didIteratorError83) {
-            throw _iteratorError83;
+          if (_didIteratorError82) {
+            throw _iteratorError82;
           }
         }
       }
@@ -6155,13 +6125,13 @@ var ProjectService = function () {
       if (node != null) {
         var components = node.components;
         if (components != null) {
-          var _iteratorNormalCompletion84 = true;
-          var _didIteratorError84 = false;
-          var _iteratorError84 = undefined;
+          var _iteratorNormalCompletion83 = true;
+          var _didIteratorError83 = false;
+          var _iteratorError83 = undefined;
 
           try {
-            for (var _iterator84 = components[Symbol.iterator](), _step84; !(_iteratorNormalCompletion84 = (_step84 = _iterator84.next()).done); _iteratorNormalCompletion84 = true) {
-              var component = _step84.value;
+            for (var _iterator83 = components[Symbol.iterator](), _step83; !(_iteratorNormalCompletion83 = (_step83 = _iterator83.next()).done); _iteratorNormalCompletion83 = true) {
+              var component = _step83.value;
 
               if (component != null) {
                 var componentType = component.type;
@@ -6174,16 +6144,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError84 = true;
-            _iteratorError84 = err;
+            _didIteratorError83 = true;
+            _iteratorError83 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion84 && _iterator84.return) {
-                _iterator84.return();
+              if (!_iteratorNormalCompletion83 && _iterator83.return) {
+                _iterator83.return();
               }
             } finally {
-              if (_didIteratorError84) {
-                throw _iteratorError84;
+              if (_didIteratorError83) {
+                throw _iteratorError83;
               }
             }
           }
@@ -6205,13 +6175,13 @@ var ProjectService = function () {
       if (node != null) {
         var components = node.components;
         if (components != null) {
-          var _iteratorNormalCompletion85 = true;
-          var _didIteratorError85 = false;
-          var _iteratorError85 = undefined;
+          var _iteratorNormalCompletion84 = true;
+          var _didIteratorError84 = false;
+          var _iteratorError84 = undefined;
 
           try {
-            for (var _iterator85 = components[Symbol.iterator](), _step85; !(_iteratorNormalCompletion85 = (_step85 = _iterator85.next()).done); _iteratorNormalCompletion85 = true) {
-              var component = _step85.value;
+            for (var _iterator84 = components[Symbol.iterator](), _step84; !(_iteratorNormalCompletion84 = (_step84 = _iterator84.next()).done); _iteratorNormalCompletion84 = true) {
+              var component = _step84.value;
 
               if (component != null) {
                 if (component.showSaveButton == true) {
@@ -6220,16 +6190,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError85 = true;
-            _iteratorError85 = err;
+            _didIteratorError84 = true;
+            _iteratorError84 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion85 && _iterator85.return) {
-                _iterator85.return();
+              if (!_iteratorNormalCompletion84 && _iterator84.return) {
+                _iterator84.return();
               }
             } finally {
-              if (_didIteratorError85) {
-                throw _iteratorError85;
+              if (_didIteratorError84) {
+                throw _iteratorError84;
               }
             }
           }
@@ -6251,13 +6221,13 @@ var ProjectService = function () {
       if (node != null) {
         var components = node.components;
         if (components != null) {
-          var _iteratorNormalCompletion86 = true;
-          var _didIteratorError86 = false;
-          var _iteratorError86 = undefined;
+          var _iteratorNormalCompletion85 = true;
+          var _didIteratorError85 = false;
+          var _iteratorError85 = undefined;
 
           try {
-            for (var _iterator86 = components[Symbol.iterator](), _step86; !(_iteratorNormalCompletion86 = (_step86 = _iterator86.next()).done); _iteratorNormalCompletion86 = true) {
-              var component = _step86.value;
+            for (var _iterator85 = components[Symbol.iterator](), _step85; !(_iteratorNormalCompletion85 = (_step85 = _iterator85.next()).done); _iteratorNormalCompletion85 = true) {
+              var component = _step85.value;
 
               if (component != null) {
                 if (component.showSubmitButton == true) {
@@ -6266,16 +6236,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError86 = true;
-            _iteratorError86 = err;
+            _didIteratorError85 = true;
+            _iteratorError85 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion86 && _iterator86.return) {
-                _iterator86.return();
+              if (!_iteratorNormalCompletion85 && _iterator85.return) {
+                _iterator85.return();
               }
             } finally {
-              if (_didIteratorError86) {
-                throw _iteratorError86;
+              if (_didIteratorError85) {
+                throw _iteratorError85;
               }
             }
           }
@@ -6296,13 +6266,13 @@ var ProjectService = function () {
       if (node != null) {
         var components = node.components;
         if (components != null) {
-          var _iteratorNormalCompletion87 = true;
-          var _didIteratorError87 = false;
-          var _iteratorError87 = undefined;
+          var _iteratorNormalCompletion86 = true;
+          var _didIteratorError86 = false;
+          var _iteratorError86 = undefined;
 
           try {
-            for (var _iterator87 = components[Symbol.iterator](), _step87; !(_iteratorNormalCompletion87 = (_step87 = _iterator87.next()).done); _iteratorNormalCompletion87 = true) {
-              var component = _step87.value;
+            for (var _iterator86 = components[Symbol.iterator](), _step86; !(_iteratorNormalCompletion86 = (_step86 = _iterator86.next()).done); _iteratorNormalCompletion86 = true) {
+              var component = _step86.value;
 
               if (component != null) {
                 var componentType = component.type;
@@ -6317,16 +6287,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError87 = true;
-            _iteratorError87 = err;
+            _didIteratorError86 = true;
+            _iteratorError86 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion87 && _iterator87.return) {
-                _iterator87.return();
+              if (!_iteratorNormalCompletion86 && _iterator86.return) {
+                _iterator86.return();
               }
             } finally {
-              if (_didIteratorError87) {
-                throw _iteratorError87;
+              if (_didIteratorError86) {
+                throw _iteratorError86;
               }
             }
           }
@@ -6346,13 +6316,13 @@ var ProjectService = function () {
       if (node != null) {
         var components = node.components;
         if (components != null) {
-          var _iteratorNormalCompletion88 = true;
-          var _didIteratorError88 = false;
-          var _iteratorError88 = undefined;
+          var _iteratorNormalCompletion87 = true;
+          var _didIteratorError87 = false;
+          var _iteratorError87 = undefined;
 
           try {
-            for (var _iterator88 = components[Symbol.iterator](), _step88; !(_iteratorNormalCompletion88 = (_step88 = _iterator88.next()).done); _iteratorNormalCompletion88 = true) {
-              var component = _step88.value;
+            for (var _iterator87 = components[Symbol.iterator](), _step87; !(_iteratorNormalCompletion87 = (_step87 = _iterator87.next()).done); _iteratorNormalCompletion87 = true) {
+              var component = _step87.value;
 
               if (component != null) {
                 var componentType = component.type;
@@ -6367,16 +6337,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError88 = true;
-            _iteratorError88 = err;
+            _didIteratorError87 = true;
+            _iteratorError87 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion88 && _iterator88.return) {
-                _iterator88.return();
+              if (!_iteratorNormalCompletion87 && _iterator87.return) {
+                _iterator87.return();
               }
             } finally {
-              if (_didIteratorError88) {
-                throw _iteratorError88;
+              if (_didIteratorError87) {
+                throw _iteratorError87;
               }
             }
           }
@@ -6546,13 +6516,13 @@ var ProjectService = function () {
 
       if (allPaths != null && allPaths.length > 0) {
         var firstPath = allPaths[0];
-        var _iteratorNormalCompletion89 = true;
-        var _didIteratorError89 = false;
-        var _iteratorError89 = undefined;
+        var _iteratorNormalCompletion88 = true;
+        var _didIteratorError88 = false;
+        var _iteratorError88 = undefined;
 
         try {
-          for (var _iterator89 = firstPath[Symbol.iterator](), _step89; !(_iteratorNormalCompletion89 = (_step89 = _iterator89.next()).done); _iteratorNormalCompletion89 = true) {
-            var nodeId = _step89.value;
+          for (var _iterator88 = firstPath[Symbol.iterator](), _step88; !(_iteratorNormalCompletion88 = (_step88 = _iterator88.next()).done); _iteratorNormalCompletion88 = true) {
+            var nodeId = _step88.value;
 
             var nodeMaxScore = this.getMaxScoreForNode(nodeId);
             if (nodeMaxScore != null) {
@@ -6564,16 +6534,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError89 = true;
-          _iteratorError89 = err;
+          _didIteratorError88 = true;
+          _iteratorError88 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion89 && _iterator89.return) {
-              _iterator89.return();
+            if (!_iteratorNormalCompletion88 && _iterator88.return) {
+              _iterator88.return();
             }
           } finally {
-            if (_didIteratorError89) {
-              throw _iteratorError89;
+            if (_didIteratorError88) {
+              throw _iteratorError88;
             }
           }
         }
@@ -6595,13 +6565,13 @@ var ProjectService = function () {
       if (node != null) {
         var components = node.components;
         if (components != null) {
-          var _iteratorNormalCompletion90 = true;
-          var _didIteratorError90 = false;
-          var _iteratorError90 = undefined;
+          var _iteratorNormalCompletion89 = true;
+          var _didIteratorError89 = false;
+          var _iteratorError89 = undefined;
 
           try {
-            for (var _iterator90 = components[Symbol.iterator](), _step90; !(_iteratorNormalCompletion90 = (_step90 = _iterator90.next()).done); _iteratorNormalCompletion90 = true) {
-              var component = _step90.value;
+            for (var _iterator89 = components[Symbol.iterator](), _step89; !(_iteratorNormalCompletion89 = (_step89 = _iterator89.next()).done); _iteratorNormalCompletion89 = true) {
+              var component = _step89.value;
 
               if (component != null) {
                 var componentMaxScore = component.maxScore;
@@ -6621,16 +6591,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError90 = true;
-            _iteratorError90 = err;
+            _didIteratorError89 = true;
+            _iteratorError89 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion90 && _iterator90.return) {
-                _iterator90.return();
+              if (!_iteratorNormalCompletion89 && _iterator89.return) {
+                _iterator89.return();
               }
             } finally {
-              if (_didIteratorError90) {
-                throw _iteratorError90;
+              if (_didIteratorError89) {
+                throw _iteratorError89;
               }
             }
           }
@@ -6652,366 +6622,119 @@ var ProjectService = function () {
       if (component != null) {
         return component.maxScore;
       }
-      return null;
-    }
-
-    /**
-     * Set the max score for a component
-     * @param nodeId set the max score from a component in this node
-     * @param componentId set the max score from this component
-     * @param maxScore set it to this maxScore
-     */
-
-  }, {
-    key: 'setMaxScoreForComponent',
-    value: function setMaxScoreForComponent(nodeId, componentId, maxScore) {
-      if (nodeId != null && componentId != null && maxScore != null && typeof maxScore === 'number') {
-        var component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);
-        if (component != null) {
-          component.maxScore = maxScore;
-        }
-      }
-    }
-
-    /**
-     * Determine if a node id is a direct child of a group
-     * @param nodeId the node id
-     * @param groupId the group id
-     */
-
-  }, {
-    key: 'isNodeInGroup',
-    value: function isNodeInGroup(nodeId, groupId) {
-      var group = this.getNodeById(groupId);
-      var childIds = group.ids;
-      if (childIds != null) {
-        if (childIds.indexOf(nodeId) != -1) {
-          return true;
-        }
-      }
-      return false;
-    }
-
-    /**
-     * Get the first leaf node by traversing all the start ids
-     * until a leaf node id is found
-     */
-
-  }, {
-    key: 'getFirstLeafNodeId',
-    value: function getFirstLeafNodeId() {
-      var firstLeafNodeId = null;
-      var startGroupId = this.project.startGroupId;
-      var node = this.getNodeById(startGroupId);
-      var done = false;
-
-      // loop until we have found a leaf node id or something went wrong
-      while (!done) {
-        if (node == null) {
-          done = true;
-        } else if (this.isGroupNode(node.id)) {
-          // set the first leaf node id to the group id for now
-          firstLeafNodeId = node.id;
-
-          node = this.getNodeById(node.startId);
-        } else if (this.isApplicationNode(node.id)) {
-          // the current node is a leaf
-          firstLeafNodeId = node.id;
-          done = true;
-        } else {
-          done = true;
-        }
-      }
-      return firstLeafNodeId;
-    }
-
-    /**
-     * Replace a node. This is used when we want to revert a node back to a
-     * previous version in the authoring tool.
-     * @param nodeId the node id
-     * @param node the node object
-     */
-
-  }, {
-    key: 'replaceNode',
-    value: function replaceNode(nodeId, node) {
-      if (nodeId != null && node != null) {
-        this.setIdToNode(nodeId, node);
-        this.setIdToElement(nodeId, node);
-        var nodes = this.getNodes();
-        if (nodes != null) {
-          for (var n = 0; n < nodes.length; n++) {
-            var tempNode = nodes[n];
-            if (tempNode != null) {
-              var tempNodeId = tempNode.id;
-              if (nodeId === tempNodeId) {
-                nodes.splice(n, 1, node);
-                break;
-              }
-            }
-          }
-        }
-
-        var applicationNodes = this.applicationNodes;
-        if (applicationNodes != null) {
-          for (var a = 0; a < applicationNodes.length; a++) {
-            var tempApplicationNode = applicationNodes[a];
-            if (tempApplicationNode != null) {
-              var tempApplicationNodeId = tempApplicationNode.id;
-              if (nodeId === tempApplicationNodeId) {
-                applicationNodes.splice(a, 1, node);
-              }
-            }
-          }
-        }
-      }
-    }
-
-    /**
-     * Check if a node is a planning node
-     * @param nodeId the node id
-     * @returns whether the node is a planning node
-     */
-
-  }, {
-    key: 'isPlanning',
-    value: function isPlanning(nodeId) {
-      if (nodeId != null) {
-        var node = this.getNodeById(nodeId);
-        if (node != null) {
-          if (node.planning) {
-            return true;
-          }
-        }
-      }
-      return false;
-    }
-
-    /**
-     * Check if a node is a planning node instance
-     * @param nodeId the node id
-     * @returns whether the node is a planning node instance
-     */
-
-  }, {
-    key: 'isPlanningInstance',
-    value: function isPlanningInstance(nodeId) {
-      if (nodeId != null) {
-        var node = this.getNodeById(nodeId);
-        if (node.planningNodeTemplateId) {
-          return true;
-        }
-      }
-      return false;
-    }
-
-    /**
-     * Get the available planning node ids for a node
-     * @param nodeId the node we want available planning nodes for
-     * @returns an array of available planning node ids
-     */
-
-  }, {
-    key: 'getAvailablePlanningNodeIds',
-    value: function getAvailablePlanningNodeIds(nodeId) {
-      if (nodeId != null) {
-        var node = this.getNodeById(nodeId);
-        if (node != null && node.availablePlanningNodeIds != null) {
-          return node.availablePlanningNodeIds;
-        }
-      }
-      return [];
-    }
-
-    /**
-     * Get the available planning nodes for a given group
-     * @param nodeId the node id of the group
-     * @returns an array of planning node templates
-     */
-
-  }, {
-    key: 'getAvailablePlanningNodes',
-    value: function getAvailablePlanningNodes(nodeId) {
-      var availablePlanningNodesSoFar = [];
-      if (nodeId != null) {
-        var node = this.getNodeById(nodeId);
-        if (node != null && node.availablePlanningNodes != null) {
-          var availablePlanningNodes = node.availablePlanningNodes;
-          var _iteratorNormalCompletion91 = true;
-          var _didIteratorError91 = false;
-          var _iteratorError91 = undefined;
-
-          try {
-            for (var _iterator91 = availablePlanningNodes[Symbol.iterator](), _step91; !(_iteratorNormalCompletion91 = (_step91 = _iterator91.next()).done); _iteratorNormalCompletion91 = true) {
-              var availablePlanningNode = _step91.value;
-
-              if (availablePlanningNode != null) {
-                var availablePlanningNodeActual = this.getNodeById(availablePlanningNode.nodeId);
-                if (availablePlanningNodeActual != null) {
-                  if (availablePlanningNode.max != null) {
-                    availablePlanningNodeActual.max = availablePlanningNode.max;
-                  }
-                  availablePlanningNodesSoFar.push(availablePlanningNodeActual);
-                }
-              }
-            }
-          } catch (err) {
-            _didIteratorError91 = true;
-            _iteratorError91 = err;
-          } finally {
-            try {
-              if (!_iteratorNormalCompletion91 && _iterator91.return) {
-                _iterator91.return();
-              }
-            } finally {
-              if (_didIteratorError91) {
-                throw _iteratorError91;
-              }
-            }
-          }
-        }
-      }
-      return availablePlanningNodesSoFar;
+      return null;
     }
 
     /**
-     * Create a planning node instance and add it to the project
-     * @param groupId the group id to add the planning node instance to
-     * @param nodeId the node id of the planning node template
+     * Set the max score for a component
+     * @param nodeId set the max score from a component in this node
+     * @param componentId set the max score from this component
+     * @param maxScore set it to this maxScore
      */
 
   }, {
-    key: 'createPlanningNodeInstance',
-    value: function createPlanningNodeInstance(groupId, nodeId, nextAvailablePlanningNodeId) {
-      var planningNodeInstance = null;
-      if (nodeId != null && nextAvailablePlanningNodeId != null) {
-        // create a planning node instance by copying the planning node template
-        planningNodeInstance = this.copyNode(nodeId);
-
-        // set the template id to point back to the planning template node
-        planningNodeInstance.planningNodeTemplateId = nodeId;
-
-        // set the planning node instance node id
-        planningNodeInstance.id = nextAvailablePlanningNodeId;
+    key: 'setMaxScoreForComponent',
+    value: function setMaxScoreForComponent(nodeId, componentId, maxScore) {
+      if (nodeId != null && componentId != null && maxScore != null && typeof maxScore === 'number') {
+        var component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);
+        if (component != null) {
+          component.maxScore = maxScore;
+        }
       }
-      return planningNodeInstance;
     }
 
     /**
-     * Add a planning node instance inside a group node
-     * @param nodeIdToInsertInside the group id to insert into
-     * @param planningNodeInstance the planning node instance to add
+     * Determine if a node id is a direct child of a group
+     * @param nodeId the node id
+     * @param groupId the group id
      */
 
   }, {
-    key: 'addPlanningNodeInstanceInside',
-    value: function addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance) {
-      var planningNodeInstanceNodeId = planningNodeInstance.id;
-
-      // add an entry in our mapping data structures of node id to object
-      this.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);
-      this.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);
-
-      // add the node to the nodes array in the project
-      this.addNode(planningNodeInstance);
-
-      // update the transitions
-      this.insertNodeInsideInTransitions(planningNodeInstanceNodeId, nodeIdToInsertInside);
-
-      // update the child ids of the group
-      this.insertNodeInsideInGroups(planningNodeInstanceNodeId, nodeIdToInsertInside);
-
-      // recalculate all the position values in the group
-      this.recalculatePositionsInGroup(nodeIdToInsertInside);
-
-      /*
-       * set the order of the planning node instance so that it shows up
-       * in the select step drop down in the correct order
-       */
-      this.setNodeOrder(this.rootNode, 0);
+    key: 'isNodeInGroup',
+    value: function isNodeInGroup(nodeId, groupId) {
+      var group = this.getNodeById(groupId);
+      var childIds = group.ids;
+      if (childIds != null) {
+        if (childIds.indexOf(nodeId) != -1) {
+          return true;
+        }
+      }
+      return false;
     }
 
     /**
-     * Add a planning node instance after a node
-     * @param nodeIdToInsertAfter the node to insert after
-     * @param planningNodeInstance the planning node instance to add
+     * Get the first leaf node by traversing all the start ids
+     * until a leaf node id is found
      */
 
   }, {
-    key: 'addPlanningNodeInstanceAfter',
-    value: function addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance) {
-      var planningNodeInstanceNodeId = planningNodeInstance.id;
-
-      // add an entry in our mapping data structures of node id to object
-      this.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);
-      this.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);
-
-      // add the node to the nodes array in the project
-      this.addNode(planningNodeInstance);
-
-      // update the transitions
-      this.insertNodeAfterInTransitions(planningNodeInstance, nodeIdToInsertAfter);
-
-      // update the child ids of the group
-      this.insertNodeAfterInGroups(planningNodeInstanceNodeId, nodeIdToInsertAfter);
-
-      var parentGroup = this.getParentGroup(nodeIdToInsertAfter);
+    key: 'getFirstLeafNodeId',
+    value: function getFirstLeafNodeId() {
+      var firstLeafNodeId = null;
+      var startGroupId = this.project.startGroupId;
+      var node = this.getNodeById(startGroupId);
+      var done = false;
 
-      if (parentGroup != null) {
-        var parentGroupId = parentGroup.id;
+      // loop until we have found a leaf node id or something went wrong
+      while (!done) {
+        if (node == null) {
+          done = true;
+        } else if (this.isGroupNode(node.id)) {
+          // set the first leaf node id to the group id for now
+          firstLeafNodeId = node.id;
 
-        // recalculate all the position values in the group
-        this.recalculatePositionsInGroup(parentGroupId);
+          node = this.getNodeById(node.startId);
+        } else if (this.isApplicationNode(node.id)) {
+          // the current node is a leaf
+          firstLeafNodeId = node.id;
+          done = true;
+        } else {
+          done = true;
+        }
       }
-
-      /*
-       * set the order of the planning node instance so that it shows up
-       * in the select step drop down in the correct order
-       */
-      this.setNodeOrder(this.rootNode, 0);
-    }
-
-    /**
-     * Move a planning node instance inside a group
-     * @param nodeIdToMove the node to move
-     * @param nodeIdToInsertInside the group to move the node into
-     */
-
-  }, {
-    key: 'movePlanningNodeInstanceInside',
-    value: function movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToInsertInside) {
-      this.moveNodesInside([nodeIdToMove], nodeIdToInsertInside);
-      this.recalculatePositionsInGroup(nodeIdToInsertInside);
-
-      /*
-       * set the order of the planning node instance so that it shows up
-       * in the select step drop down in the correct order
-       */
-      this.setNodeOrder(this.rootNode, 0);
+      return firstLeafNodeId;
     }
 
     /**
-     * Move a planning node instance after a node
-     * @param nodeIdToMove the node to move
-     * @param nodeIdToInsertAfter the other node to move the node after
+     * Replace a node. This is used when we want to revert a node back to a
+     * previous version in the authoring tool.
+     * @param nodeId the node id
+     * @param node the node object
      */
 
   }, {
-    key: 'movePlanningNodeInstanceAfter',
-    value: function movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToInsertAfter) {
-      this.moveNodesAfter([nodeIdToMove], nodeIdToInsertAfter);
-      var parentGroup = this.getParentGroup(nodeIdToInsertAfter);
+    key: 'replaceNode',
+    value: function replaceNode(nodeId, node) {
+      if (nodeId != null && node != null) {
+        this.setIdToNode(nodeId, node);
+        this.setIdToElement(nodeId, node);
+        var nodes = this.getNodes();
+        if (nodes != null) {
+          for (var n = 0; n < nodes.length; n++) {
+            var tempNode = nodes[n];
+            if (tempNode != null) {
+              var tempNodeId = tempNode.id;
+              if (nodeId === tempNodeId) {
+                nodes.splice(n, 1, node);
+                break;
+              }
+            }
+          }
+        }
 
-      if (parentGroup != null) {
-        var parentGroupId = parentGroup.id;
-        this.recalculatePositionsInGroup(parentGroupId);
+        var applicationNodes = this.applicationNodes;
+        if (applicationNodes != null) {
+          for (var a = 0; a < applicationNodes.length; a++) {
+            var tempApplicationNode = applicationNodes[a];
+            if (tempApplicationNode != null) {
+              var tempApplicationNodeId = tempApplicationNode.id;
+              if (nodeId === tempApplicationNodeId) {
+                applicationNodes.splice(a, 1, node);
+              }
+            }
+          }
+        }
       }
-
-      /*
-       * set the order of the planning node instance so that it shows up
-       * in the select step drop down in the correct order
-       */
-      this.setNodeOrder(this.rootNode, 0);
     }
 
     /**
@@ -7027,28 +6750,28 @@ var ProjectService = function () {
     value: function recalculatePositionsInGroup(groupId) {
       if (groupId != null) {
         var childIds = this.getChildNodeIdsById(groupId);
-        var _iteratorNormalCompletion92 = true;
-        var _didIteratorError92 = false;
-        var _iteratorError92 = undefined;
+        var _iteratorNormalCompletion90 = true;
+        var _didIteratorError90 = false;
+        var _iteratorError90 = undefined;
 
         try {
-          for (var _iterator92 = childIds[Symbol.iterator](), _step92; !(_iteratorNormalCompletion92 = (_step92 = _iterator92.next()).done); _iteratorNormalCompletion92 = true) {
-            var childId = _step92.value;
+          for (var _iterator90 = childIds[Symbol.iterator](), _step90; !(_iteratorNormalCompletion90 = (_step90 = _iterator90.next()).done); _iteratorNormalCompletion90 = true) {
+            var childId = _step90.value;
 
             var pos = this.getPositionById(childId);
             this.setIdToPosition(childId, pos);
           }
         } catch (err) {
-          _didIteratorError92 = true;
-          _iteratorError92 = err;
+          _didIteratorError90 = true;
+          _iteratorError90 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion92 && _iterator92.return) {
-              _iterator92.return();
+            if (!_iteratorNormalCompletion90 && _iterator90.return) {
+              _iterator90.return();
             }
           } finally {
-            if (_didIteratorError92) {
-              throw _iteratorError92;
+            if (_didIteratorError90) {
+              throw _iteratorError90;
             }
           }
         }
@@ -7078,13 +6801,13 @@ var ProjectService = function () {
 
         if (removalCriteria != null) {
           var criteriaMessages = '';
-          var _iteratorNormalCompletion93 = true;
-          var _didIteratorError93 = false;
-          var _iteratorError93 = undefined;
+          var _iteratorNormalCompletion91 = true;
+          var _didIteratorError91 = false;
+          var _iteratorError91 = undefined;
 
           try {
-            for (var _iterator93 = removalCriteria[Symbol.iterator](), _step93; !(_iteratorNormalCompletion93 = (_step93 = _iterator93.next()).done); _iteratorNormalCompletion93 = true) {
-              var tempRemovalCriteria = _step93.value;
+            for (var _iterator91 = removalCriteria[Symbol.iterator](), _step91; !(_iteratorNormalCompletion91 = (_step91 = _iterator91.next()).done); _iteratorNormalCompletion91 = true) {
+              var tempRemovalCriteria = _step91.value;
 
               if (tempRemovalCriteria != null) {
                 // get the message that describes the criteria that needs to be satisfied
@@ -7100,16 +6823,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError93 = true;
-            _iteratorError93 = err;
+            _didIteratorError91 = true;
+            _iteratorError91 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion93 && _iterator93.return) {
-                _iterator93.return();
+              if (!_iteratorNormalCompletion91 && _iterator91.return) {
+                _iterator91.return();
               }
             } finally {
-              if (_didIteratorError93) {
-                throw _iteratorError93;
+              if (_didIteratorError91) {
+                throw _iteratorError91;
               }
             }
           }
@@ -7134,13 +6857,13 @@ var ProjectService = function () {
       var message = '';
       var action = constraint.action;
       var actionMessage = this.getActionMessage(action);
-      var _iteratorNormalCompletion94 = true;
-      var _didIteratorError94 = false;
-      var _iteratorError94 = undefined;
+      var _iteratorNormalCompletion92 = true;
+      var _didIteratorError92 = false;
+      var _iteratorError92 = undefined;
 
       try {
-        for (var _iterator94 = constraint.removalCriteria[Symbol.iterator](), _step94; !(_iteratorNormalCompletion94 = (_step94 = _iterator94.next()).done); _iteratorNormalCompletion94 = true) {
-          var singleRemovalCriteria = _step94.value;
+        for (var _iterator92 = constraint.removalCriteria[Symbol.iterator](), _step92; !(_iteratorNormalCompletion92 = (_step92 = _iterator92.next()).done); _iteratorNormalCompletion92 = true) {
+          var singleRemovalCriteria = _step92.value;
 
           if (message != '') {
             // this constraint has multiple removal criteria
@@ -7153,16 +6876,16 @@ var ProjectService = function () {
           message += this.getCriteriaMessage(singleRemovalCriteria);
         }
       } catch (err) {
-        _didIteratorError94 = true;
-        _iteratorError94 = err;
+        _didIteratorError92 = true;
+        _iteratorError92 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion94 && _iterator94.return) {
-            _iterator94.return();
+          if (!_iteratorNormalCompletion92 && _iterator92.return) {
+            _iterator92.return();
           }
         } finally {
-          if (_didIteratorError94) {
-            throw _iteratorError94;
+          if (_didIteratorError92) {
+            throw _iteratorError92;
           }
         }
       }
@@ -7342,29 +7065,29 @@ var ProjectService = function () {
     value: function getChoiceTextByNodeIdAndComponentId(nodeId, componentId, choiceIds) {
       var choices = this.getChoicesByNodeIdAndComponentId(nodeId, componentId);
       var choicesText = [];
-      var _iteratorNormalCompletion95 = true;
-      var _didIteratorError95 = false;
-      var _iteratorError95 = undefined;
+      var _iteratorNormalCompletion93 = true;
+      var _didIteratorError93 = false;
+      var _iteratorError93 = undefined;
 
       try {
-        for (var _iterator95 = choices[Symbol.iterator](), _step95; !(_iteratorNormalCompletion95 = (_step95 = _iterator95.next()).done); _iteratorNormalCompletion95 = true) {
-          var choice = _step95.value;
+        for (var _iterator93 = choices[Symbol.iterator](), _step93; !(_iteratorNormalCompletion93 = (_step93 = _iterator93.next()).done); _iteratorNormalCompletion93 = true) {
+          var choice = _step93.value;
 
           if (choiceIds.indexOf(choice.id) != -1) {
             choicesText.push(choice.text);
           }
         }
       } catch (err) {
-        _didIteratorError95 = true;
-        _iteratorError95 = err;
+        _didIteratorError93 = true;
+        _iteratorError93 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion95 && _iterator95.return) {
-            _iterator95.return();
+          if (!_iteratorNormalCompletion93 && _iterator93.return) {
+            _iterator93.return();
           }
         } finally {
-          if (_didIteratorError95) {
-            throw _iteratorError95;
+          if (_didIteratorError93) {
+            throw _iteratorError93;
           }
         }
       }
@@ -7447,13 +7170,13 @@ var ProjectService = function () {
 
           // update the children of the from group to point to the new to group
           if (childIds != null) {
-            var _iteratorNormalCompletion96 = true;
-            var _didIteratorError96 = false;
-            var _iteratorError96 = undefined;
+            var _iteratorNormalCompletion94 = true;
+            var _didIteratorError94 = false;
+            var _iteratorError94 = undefined;
 
             try {
-              for (var _iterator96 = childIds[Symbol.iterator](), _step96; !(_iteratorNormalCompletion96 = (_step96 = _iterator96.next()).done); _iteratorNormalCompletion96 = true) {
-                var childId = _step96.value;
+              for (var _iterator94 = childIds[Symbol.iterator](), _step94; !(_iteratorNormalCompletion94 = (_step94 = _iterator94.next()).done); _iteratorNormalCompletion94 = true) {
+                var childId = _step94.value;
 
                 var child = this.getNodeById(childId);
                 var transitions = this.getTransitionsByFromNodeId(childId);
@@ -7492,16 +7215,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError96 = true;
-              _iteratorError96 = err;
+              _didIteratorError94 = true;
+              _iteratorError94 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion96 && _iterator96.return) {
-                  _iterator96.return();
+                if (!_iteratorNormalCompletion94 && _iterator94.return) {
+                  _iterator94.return();
                 }
               } finally {
-                if (_didIteratorError96) {
-                  throw _iteratorError96;
+                if (_didIteratorError94) {
+                  throw _iteratorError94;
                 }
               }
             }
@@ -7519,15 +7242,15 @@ var ProjectService = function () {
 
           // remove the transitions from the old to group that point to the new to group
           if (_childIds != null) {
-            var _iteratorNormalCompletion97 = true;
-            var _didIteratorError97 = false;
-            var _iteratorError97 = undefined;
+            var _iteratorNormalCompletion95 = true;
+            var _didIteratorError95 = false;
+            var _iteratorError95 = undefined;
 
             try {
-              for (var _iterator97 = _childIds[Symbol.iterator](), _step97; !(_iteratorNormalCompletion97 = (_step97 = _iterator97.next()).done); _iteratorNormalCompletion97 = true) {
-                var _childId = _step97.value;
+              for (var _iterator95 = _childIds[Symbol.iterator](), _step95; !(_iteratorNormalCompletion95 = (_step95 = _iterator95.next()).done); _iteratorNormalCompletion95 = true) {
+                var _childId = _step95.value;
 
-                var _child2 = this.getNodeById(_childId);
+                var _child = this.getNodeById(_childId);
                 var _transitions4 = this.getTransitionsByFromNodeId(_childId);
                 if (_transitions4 != null) {
                   for (var _t = 0; _t < _transitions4.length; _t++) {
@@ -7548,16 +7271,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError97 = true;
-              _iteratorError97 = err;
+              _didIteratorError95 = true;
+              _iteratorError95 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion97 && _iterator97.return) {
-                  _iterator97.return();
+                if (!_iteratorNormalCompletion95 && _iterator95.return) {
+                  _iterator95.return();
                 }
               } finally {
-                if (_didIteratorError97) {
-                  throw _iteratorError97;
+                if (_didIteratorError95) {
+                  throw _iteratorError95;
                 }
               }
             }
@@ -7599,13 +7322,13 @@ var ProjectService = function () {
         var childIds = fromGroup.ids;
         var newToGroupStartId = newToGroup.startId;
         if (childIds != null) {
-          var _iteratorNormalCompletion98 = true;
-          var _didIteratorError98 = false;
-          var _iteratorError98 = undefined;
+          var _iteratorNormalCompletion96 = true;
+          var _didIteratorError96 = false;
+          var _iteratorError96 = undefined;
 
           try {
-            for (var _iterator98 = childIds[Symbol.iterator](), _step98; !(_iteratorNormalCompletion98 = (_step98 = _iterator98.next()).done); _iteratorNormalCompletion98 = true) {
-              var childId = _step98.value;
+            for (var _iterator96 = childIds[Symbol.iterator](), _step96; !(_iteratorNormalCompletion96 = (_step96 = _iterator96.next()).done); _iteratorNormalCompletion96 = true) {
+              var childId = _step96.value;
 
               var child = this.getNodeById(childId);
 
@@ -7623,24 +7346,24 @@ var ProjectService = function () {
                   this.addToTransition(child, newToGroupStartId);
                 }
               } else if (transitions != null) {
-                var _iteratorNormalCompletion99 = true;
-                var _didIteratorError99 = false;
-                var _iteratorError99 = undefined;
+                var _iteratorNormalCompletion97 = true;
+                var _didIteratorError97 = false;
+                var _iteratorError97 = undefined;
 
                 try {
-                  for (var _iterator99 = transitions[Symbol.iterator](), _step99; !(_iteratorNormalCompletion99 = (_step99 = _iterator99.next()).done); _iteratorNormalCompletion99 = true) {
-                    var transition = _step99.value;
+                  for (var _iterator97 = transitions[Symbol.iterator](), _step97; !(_iteratorNormalCompletion97 = (_step97 = _iterator97.next()).done); _iteratorNormalCompletion97 = true) {
+                    var transition = _step97.value;
 
                     if (transition != null) {
                       var toNodeId = transition.to;
                       if (oldToGroupIds != null) {
-                        var _iteratorNormalCompletion100 = true;
-                        var _didIteratorError100 = false;
-                        var _iteratorError100 = undefined;
+                        var _iteratorNormalCompletion98 = true;
+                        var _didIteratorError98 = false;
+                        var _iteratorError98 = undefined;
 
                         try {
-                          for (var _iterator100 = oldToGroupIds[Symbol.iterator](), _step100; !(_iteratorNormalCompletion100 = (_step100 = _iterator100.next()).done); _iteratorNormalCompletion100 = true) {
-                            var oldToGroupId = _step100.value;
+                          for (var _iterator98 = oldToGroupIds[Symbol.iterator](), _step98; !(_iteratorNormalCompletion98 = (_step98 = _iterator98.next()).done); _iteratorNormalCompletion98 = true) {
+                            var oldToGroupId = _step98.value;
 
                             if (toNodeId === oldToGroupId) {
                               /*
@@ -7661,16 +7384,16 @@ var ProjectService = function () {
                             }
                           }
                         } catch (err) {
-                          _didIteratorError100 = true;
-                          _iteratorError100 = err;
+                          _didIteratorError98 = true;
+                          _iteratorError98 = err;
                         } finally {
                           try {
-                            if (!_iteratorNormalCompletion100 && _iterator100.return) {
-                              _iterator100.return();
+                            if (!_iteratorNormalCompletion98 && _iterator98.return) {
+                              _iterator98.return();
                             }
                           } finally {
-                            if (_didIteratorError100) {
-                              throw _iteratorError100;
+                            if (_didIteratorError98) {
+                              throw _iteratorError98;
                             }
                           }
                         }
@@ -7678,32 +7401,32 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError99 = true;
-                  _iteratorError99 = err;
+                  _didIteratorError97 = true;
+                  _iteratorError97 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion99 && _iterator99.return) {
-                      _iterator99.return();
+                    if (!_iteratorNormalCompletion97 && _iterator97.return) {
+                      _iterator97.return();
                     }
                   } finally {
-                    if (_didIteratorError99) {
-                      throw _iteratorError99;
+                    if (_didIteratorError97) {
+                      throw _iteratorError97;
                     }
                   }
                 }
               }
             }
           } catch (err) {
-            _didIteratorError98 = true;
-            _iteratorError98 = err;
+            _didIteratorError96 = true;
+            _iteratorError96 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion98 && _iterator98.return) {
-                _iterator98.return();
+              if (!_iteratorNormalCompletion96 && _iterator96.return) {
+                _iterator96.return();
               }
             } finally {
-              if (_didIteratorError98) {
-                throw _iteratorError98;
+              if (_didIteratorError96) {
+                throw _iteratorError96;
               }
             }
           }
@@ -7718,26 +7441,26 @@ var ProjectService = function () {
       if (newToGroup != null) {
         var _childIds2 = newToGroup.ids;
         if (_childIds2 != null) {
-          var _iteratorNormalCompletion101 = true;
-          var _didIteratorError101 = false;
-          var _iteratorError101 = undefined;
+          var _iteratorNormalCompletion99 = true;
+          var _didIteratorError99 = false;
+          var _iteratorError99 = undefined;
 
           try {
-            for (var _iterator101 = _childIds2[Symbol.iterator](), _step101; !(_iteratorNormalCompletion101 = (_step101 = _iterator101.next()).done); _iteratorNormalCompletion101 = true) {
-              var _childId2 = _step101.value;
+            for (var _iterator99 = _childIds2[Symbol.iterator](), _step99; !(_iteratorNormalCompletion99 = (_step99 = _iterator99.next()).done); _iteratorNormalCompletion99 = true) {
+              var _childId2 = _step99.value;
 
-              var _child3 = this.getNodeById(_childId2);
+              var _child2 = this.getNodeById(_childId2);
               var _transitions5 = this.getTransitionsByFromNodeId(_childId2);
 
               if (_transitions5 == null || _transitions5.length == 0) {
                 if (oldToGroupIds != null) {
-                  var _iteratorNormalCompletion102 = true;
-                  var _didIteratorError102 = false;
-                  var _iteratorError102 = undefined;
+                  var _iteratorNormalCompletion100 = true;
+                  var _didIteratorError100 = false;
+                  var _iteratorError100 = undefined;
 
                   try {
-                    for (var _iterator102 = oldToGroupIds[Symbol.iterator](), _step102; !(_iteratorNormalCompletion102 = (_step102 = _iterator102.next()).done); _iteratorNormalCompletion102 = true) {
-                      var _oldToGroupId = _step102.value;
+                    for (var _iterator100 = oldToGroupIds[Symbol.iterator](), _step100; !(_iteratorNormalCompletion100 = (_step100 = _iterator100.next()).done); _iteratorNormalCompletion100 = true) {
+                      var _oldToGroupId = _step100.value;
 
                       var oldToGroup = this.getNodeById(_oldToGroupId);
                       if (oldToGroup != null) {
@@ -7753,20 +7476,20 @@ var ProjectService = function () {
                         }
 
                         // create the transition from the child to the old group
-                        this.addToTransition(_child3, _toNodeId5);
+                        this.addToTransition(_child2, _toNodeId5);
                       }
                     }
                   } catch (err) {
-                    _didIteratorError102 = true;
-                    _iteratorError102 = err;
+                    _didIteratorError100 = true;
+                    _iteratorError100 = err;
                   } finally {
                     try {
-                      if (!_iteratorNormalCompletion102 && _iterator102.return) {
-                        _iterator102.return();
+                      if (!_iteratorNormalCompletion100 && _iterator100.return) {
+                        _iterator100.return();
                       }
                     } finally {
-                      if (_didIteratorError102) {
-                        throw _iteratorError102;
+                      if (_didIteratorError100) {
+                        throw _iteratorError100;
                       }
                     }
                   }
@@ -7774,16 +7497,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError101 = true;
-            _iteratorError101 = err;
+            _didIteratorError99 = true;
+            _iteratorError99 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion101 && _iterator101.return) {
-                _iterator101.return();
+              if (!_iteratorNormalCompletion99 && _iterator99.return) {
+                _iterator99.return();
               }
             } finally {
-              if (_didIteratorError101) {
-                throw _iteratorError101;
+              if (_didIteratorError99) {
+                throw _iteratorError99;
               }
             }
           }
@@ -7819,13 +7542,13 @@ var ProjectService = function () {
        * group we are moving.
        */
 
-      var _iteratorNormalCompletion103 = true;
-      var _didIteratorError103 = false;
-      var _iteratorError103 = undefined;
+      var _iteratorNormalCompletion101 = true;
+      var _didIteratorError101 = false;
+      var _iteratorError101 = undefined;
 
       try {
-        for (var _iterator103 = previousGroupNodes[Symbol.iterator](), _step103; !(_iteratorNormalCompletion103 = (_step103 = _iterator103.next()).done); _iteratorNormalCompletion103 = true) {
-          var previousGroupNode = _step103.value;
+        for (var _iterator101 = previousGroupNodes[Symbol.iterator](), _step101; !(_iteratorNormalCompletion101 = (_step101 = _iterator101.next()).done); _iteratorNormalCompletion101 = true) {
+          var previousGroupNode = _step101.value;
 
           if (transitionsAfter == null || transitionsAfter.length == 0) {
             // the group we are moving does not have any transitions
@@ -7840,13 +7563,13 @@ var ProjectService = function () {
             // the group we are moving has transitions
 
             // make the previous group point to the new to group
-            var _iteratorNormalCompletion106 = true;
-            var _didIteratorError106 = false;
-            var _iteratorError106 = undefined;
+            var _iteratorNormalCompletion104 = true;
+            var _didIteratorError104 = false;
+            var _iteratorError104 = undefined;
 
             try {
-              for (var _iterator106 = transitionsAfter[Symbol.iterator](), _step106; !(_iteratorNormalCompletion106 = (_step106 = _iterator106.next()).done); _iteratorNormalCompletion106 = true) {
-                var _transitionAfter2 = _step106.value;
+              for (var _iterator104 = transitionsAfter[Symbol.iterator](), _step104; !(_iteratorNormalCompletion104 = (_step104 = _iterator104.next()).done); _iteratorNormalCompletion104 = true) {
+                var _transitionAfter2 = _step104.value;
 
                 if (_transitionAfter2 != null) {
                   var _toNodeId7 = _transitionAfter2.to;
@@ -7860,32 +7583,32 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError106 = true;
-              _iteratorError106 = err;
+              _didIteratorError104 = true;
+              _iteratorError104 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion106 && _iterator106.return) {
-                  _iterator106.return();
+                if (!_iteratorNormalCompletion104 && _iterator104.return) {
+                  _iterator104.return();
                 }
               } finally {
-                if (_didIteratorError106) {
-                  throw _iteratorError106;
+                if (_didIteratorError104) {
+                  throw _iteratorError104;
                 }
               }
             }
           }
         }
       } catch (err) {
-        _didIteratorError103 = true;
-        _iteratorError103 = err;
+        _didIteratorError101 = true;
+        _iteratorError101 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion103 && _iterator103.return) {
-            _iterator103.return();
+          if (!_iteratorNormalCompletion101 && _iterator101.return) {
+            _iterator101.return();
           }
         } finally {
-          if (_didIteratorError103) {
-            throw _iteratorError103;
+          if (_didIteratorError101) {
+            throw _iteratorError101;
           }
         }
       }
@@ -7898,13 +7621,13 @@ var ProjectService = function () {
 
         if (transitionsAfter != null) {
           // remove the transitions from the group we are moving
-          var _iteratorNormalCompletion104 = true;
-          var _didIteratorError104 = false;
-          var _iteratorError104 = undefined;
+          var _iteratorNormalCompletion102 = true;
+          var _didIteratorError102 = false;
+          var _iteratorError102 = undefined;
 
           try {
-            for (var _iterator104 = transitionsAfter[Symbol.iterator](), _step104; !(_iteratorNormalCompletion104 = (_step104 = _iterator104.next()).done); _iteratorNormalCompletion104 = true) {
-              var transitionAfter = _step104.value;
+            for (var _iterator102 = transitionsAfter[Symbol.iterator](), _step102; !(_iteratorNormalCompletion102 = (_step102 = _iterator102.next()).done); _iteratorNormalCompletion102 = true) {
+              var transitionAfter = _step102.value;
 
               if (transitionAfter != null) {
                 var toNodeId = transitionAfter.to;
@@ -7915,16 +7638,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError104 = true;
-            _iteratorError104 = err;
+            _didIteratorError102 = true;
+            _iteratorError102 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion104 && _iterator104.return) {
-                _iterator104.return();
+              if (!_iteratorNormalCompletion102 && _iterator102.return) {
+                _iterator102.return();
               }
             } finally {
-              if (_didIteratorError104) {
-                throw _iteratorError104;
+              if (_didIteratorError102) {
+                throw _iteratorError102;
               }
             }
           }
@@ -7941,13 +7664,13 @@ var ProjectService = function () {
         // get the transitions from the previous group to the next group
         var _transitionsAfter = this.getTransitionsByFromNodeId(nodeId);
 
-        var _iteratorNormalCompletion105 = true;
-        var _didIteratorError105 = false;
-        var _iteratorError105 = undefined;
+        var _iteratorNormalCompletion103 = true;
+        var _didIteratorError103 = false;
+        var _iteratorError103 = undefined;
 
         try {
-          for (var _iterator105 = _transitionsAfter[Symbol.iterator](), _step105; !(_iteratorNormalCompletion105 = (_step105 = _iterator105.next()).done); _iteratorNormalCompletion105 = true) {
-            var _transitionAfter = _step105.value;
+          for (var _iterator103 = _transitionsAfter[Symbol.iterator](), _step103; !(_iteratorNormalCompletion103 = (_step103 = _iterator103.next()).done); _iteratorNormalCompletion103 = true) {
+            var _transitionAfter = _step103.value;
 
             if (_transitionAfter != null) {
               var _toNodeId6 = _transitionAfter.to;
@@ -7963,16 +7686,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError105 = true;
-          _iteratorError105 = err;
+          _didIteratorError103 = true;
+          _iteratorError103 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion105 && _iterator105.return) {
-              _iterator105.return();
+            if (!_iteratorNormalCompletion103 && _iterator103.return) {
+              _iterator103.return();
             }
           } finally {
-            if (_didIteratorError105) {
-              throw _iteratorError105;
+            if (_didIteratorError103) {
+              throw _iteratorError103;
             }
           }
         }
@@ -8098,27 +7821,27 @@ var ProjectService = function () {
     value: function removeChildNodesFromActiveNodes(node) {
       if (node != null) {
         var childIds = node.ids;
-        var _iteratorNormalCompletion107 = true;
-        var _didIteratorError107 = false;
-        var _iteratorError107 = undefined;
+        var _iteratorNormalCompletion105 = true;
+        var _didIteratorError105 = false;
+        var _iteratorError105 = undefined;
 
         try {
-          for (var _iterator107 = childIds[Symbol.iterator](), _step107; !(_iteratorNormalCompletion107 = (_step107 = _iterator107.next()).done); _iteratorNormalCompletion107 = true) {
-            var childId = _step107.value;
+          for (var _iterator105 = childIds[Symbol.iterator](), _step105; !(_iteratorNormalCompletion105 = (_step105 = _iterator105.next()).done); _iteratorNormalCompletion105 = true) {
+            var childId = _step105.value;
 
             this.removeNodeFromActiveNodes(childId);
           }
         } catch (err) {
-          _didIteratorError107 = true;
-          _iteratorError107 = err;
+          _didIteratorError105 = true;
+          _iteratorError105 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion107 && _iterator107.return) {
-              _iterator107.return();
+            if (!_iteratorNormalCompletion105 && _iterator105.return) {
+              _iterator105.return();
             }
           } finally {
-            if (_didIteratorError107) {
-              throw _iteratorError107;
+            if (_didIteratorError105) {
+              throw _iteratorError105;
             }
           }
         }
@@ -8248,13 +7971,13 @@ var ProjectService = function () {
     key: 'loadInactiveNodes',
     value: function loadInactiveNodes(nodes) {
       if (nodes != null) {
-        var _iteratorNormalCompletion108 = true;
-        var _didIteratorError108 = false;
-        var _iteratorError108 = undefined;
+        var _iteratorNormalCompletion106 = true;
+        var _didIteratorError106 = false;
+        var _iteratorError106 = undefined;
 
         try {
-          for (var _iterator108 = nodes[Symbol.iterator](), _step108; !(_iteratorNormalCompletion108 = (_step108 = _iterator108.next()).done); _iteratorNormalCompletion108 = true) {
-            var node = _step108.value;
+          for (var _iterator106 = nodes[Symbol.iterator](), _step106; !(_iteratorNormalCompletion106 = (_step106 = _iterator106.next()).done); _iteratorNormalCompletion106 = true) {
+            var node = _step106.value;
 
             if (node != null) {
               var nodeId = node.id;
@@ -8269,16 +7992,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError108 = true;
-          _iteratorError108 = err;
+          _didIteratorError106 = true;
+          _iteratorError106 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion108 && _iterator108.return) {
-              _iterator108.return();
+            if (!_iteratorNormalCompletion106 && _iterator106.return) {
+              _iterator106.return();
             }
           } finally {
-            if (_didIteratorError108) {
-              throw _iteratorError108;
+            if (_didIteratorError106) {
+              throw _iteratorError106;
             }
           }
         }
@@ -8309,13 +8032,13 @@ var ProjectService = function () {
 
           var activeNodes = this.project.nodes;
           if (activeNodes != null) {
-            var _iteratorNormalCompletion109 = true;
-            var _didIteratorError109 = false;
-            var _iteratorError109 = undefined;
+            var _iteratorNormalCompletion107 = true;
+            var _didIteratorError107 = false;
+            var _iteratorError107 = undefined;
 
             try {
-              for (var _iterator109 = activeNodes[Symbol.iterator](), _step109; !(_iteratorNormalCompletion109 = (_step109 = _iterator109.next()).done); _iteratorNormalCompletion109 = true) {
-                var activeNode = _step109.value;
+              for (var _iterator107 = activeNodes[Symbol.iterator](), _step107; !(_iteratorNormalCompletion107 = (_step107 = _iterator107.next()).done); _iteratorNormalCompletion107 = true) {
+                var activeNode = _step107.value;
 
                 if (activeNode != null) {
                   var activeNodeId = activeNode.id;
@@ -8328,13 +8051,13 @@ var ProjectService = function () {
                       var activeComponents = activeNode.components;
 
                       if (activeComponents != null) {
-                        var _iteratorNormalCompletion110 = true;
-                        var _didIteratorError110 = false;
-                        var _iteratorError110 = undefined;
+                        var _iteratorNormalCompletion108 = true;
+                        var _didIteratorError108 = false;
+                        var _iteratorError108 = undefined;
 
                         try {
-                          for (var _iterator110 = activeComponents[Symbol.iterator](), _step110; !(_iteratorNormalCompletion110 = (_step110 = _iterator110.next()).done); _iteratorNormalCompletion110 = true) {
-                            var activeComponent = _step110.value;
+                          for (var _iterator108 = activeComponents[Symbol.iterator](), _step108; !(_iteratorNormalCompletion108 = (_step108 = _iterator108.next()).done); _iteratorNormalCompletion108 = true) {
+                            var activeComponent = _step108.value;
 
                             if (activeComponent != null) {
                               var activeComponentId = activeComponent.id;
@@ -8348,16 +8071,16 @@ var ProjectService = function () {
                             }
                           }
                         } catch (err) {
-                          _didIteratorError110 = true;
-                          _iteratorError110 = err;
+                          _didIteratorError108 = true;
+                          _iteratorError108 = err;
                         } finally {
                           try {
-                            if (!_iteratorNormalCompletion110 && _iterator110.return) {
-                              _iterator110.return();
+                            if (!_iteratorNormalCompletion108 && _iterator108.return) {
+                              _iterator108.return();
                             }
                           } finally {
-                            if (_didIteratorError110) {
-                              throw _iteratorError110;
+                            if (_didIteratorError108) {
+                              throw _iteratorError108;
                             }
                           }
                         }
@@ -8370,16 +8093,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError109 = true;
-              _iteratorError109 = err;
+              _didIteratorError107 = true;
+              _iteratorError107 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion109 && _iterator109.return) {
-                  _iterator109.return();
+                if (!_iteratorNormalCompletion107 && _iterator107.return) {
+                  _iterator107.return();
                 }
               } finally {
-                if (_didIteratorError109) {
-                  throw _iteratorError109;
+                if (_didIteratorError107) {
+                  throw _iteratorError107;
                 }
               }
             }
@@ -8397,29 +8120,29 @@ var ProjectService = function () {
   }, {
     key: 'isGroupActive',
     value: function isGroupActive(nodeId) {
-      var _iteratorNormalCompletion111 = true;
-      var _didIteratorError111 = false;
-      var _iteratorError111 = undefined;
+      var _iteratorNormalCompletion109 = true;
+      var _didIteratorError109 = false;
+      var _iteratorError109 = undefined;
 
       try {
-        for (var _iterator111 = this.project.nodes[Symbol.iterator](), _step111; !(_iteratorNormalCompletion111 = (_step111 = _iterator111.next()).done); _iteratorNormalCompletion111 = true) {
-          var activeNode = _step111.value;
+        for (var _iterator109 = this.project.nodes[Symbol.iterator](), _step109; !(_iteratorNormalCompletion109 = (_step109 = _iterator109.next()).done); _iteratorNormalCompletion109 = true) {
+          var activeNode = _step109.value;
 
           if (nodeId == activeNode.id) {
             return true;
           }
         }
       } catch (err) {
-        _didIteratorError111 = true;
-        _iteratorError111 = err;
+        _didIteratorError109 = true;
+        _iteratorError109 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion111 && _iterator111.return) {
-            _iterator111.return();
+          if (!_iteratorNormalCompletion109 && _iterator109.return) {
+            _iterator109.return();
           }
         } finally {
-          if (_didIteratorError111) {
-            throw _iteratorError111;
+          if (_didIteratorError109) {
+            throw _iteratorError109;
           }
         }
       }
@@ -8449,28 +8172,28 @@ var ProjectService = function () {
              * children to active.
              */
             var childIds = node.ids;
-            var _iteratorNormalCompletion112 = true;
-            var _didIteratorError112 = false;
-            var _iteratorError112 = undefined;
+            var _iteratorNormalCompletion110 = true;
+            var _didIteratorError110 = false;
+            var _iteratorError110 = undefined;
 
             try {
-              for (var _iterator112 = childIds[Symbol.iterator](), _step112; !(_iteratorNormalCompletion112 = (_step112 = _iterator112.next()).done); _iteratorNormalCompletion112 = true) {
-                var childId = _step112.value;
+              for (var _iterator110 = childIds[Symbol.iterator](), _step110; !(_iteratorNormalCompletion110 = (_step110 = _iterator110.next()).done); _iteratorNormalCompletion110 = true) {
+                var childId = _step110.value;
 
                 var childNode = this.removeNodeFromInactiveNodes(childId);
                 this.addNode(childNode);
               }
             } catch (err) {
-              _didIteratorError112 = true;
-              _iteratorError112 = err;
+              _didIteratorError110 = true;
+              _iteratorError110 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion112 && _iterator112.return) {
-                  _iterator112.return();
+                if (!_iteratorNormalCompletion110 && _iterator110.return) {
+                  _iterator110.return();
                 }
               } finally {
-                if (_didIteratorError112) {
-                  throw _iteratorError112;
+                if (_didIteratorError110) {
+                  throw _iteratorError110;
                 }
               }
             }
@@ -8532,13 +8255,13 @@ var ProjectService = function () {
          * add them back in later
          */
         var childIds = node.ids;
-        var _iteratorNormalCompletion113 = true;
-        var _didIteratorError113 = false;
-        var _iteratorError113 = undefined;
+        var _iteratorNormalCompletion111 = true;
+        var _didIteratorError111 = false;
+        var _iteratorError111 = undefined;
 
         try {
-          for (var _iterator113 = childIds[Symbol.iterator](), _step113; !(_iteratorNormalCompletion113 = (_step113 = _iterator113.next()).done); _iteratorNormalCompletion113 = true) {
-            var childId = _step113.value;
+          for (var _iterator111 = childIds[Symbol.iterator](), _step111; !(_iteratorNormalCompletion111 = (_step111 = _iterator111.next()).done); _iteratorNormalCompletion111 = true) {
+            var childId = _step111.value;
 
             var childNode = this.getNodeById(childId);
             var inactiveNodesIndex = this.project.inactiveNodes.indexOf(childNode);
@@ -8551,16 +8274,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError113 = true;
-          _iteratorError113 = err;
+          _didIteratorError111 = true;
+          _iteratorError111 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion113 && _iterator113.return) {
-              _iterator113.return();
+            if (!_iteratorNormalCompletion111 && _iterator111.return) {
+              _iterator111.return();
             }
           } finally {
-            if (_didIteratorError113) {
-              throw _iteratorError113;
+            if (_didIteratorError111) {
+              throw _iteratorError111;
             }
           }
         }
@@ -8656,13 +8379,13 @@ var ProjectService = function () {
             // put the node after one of the inactive nodes
 
             var added = false;
-            var _iteratorNormalCompletion114 = true;
-            var _didIteratorError114 = false;
-            var _iteratorError114 = undefined;
+            var _iteratorNormalCompletion112 = true;
+            var _didIteratorError112 = false;
+            var _iteratorError112 = undefined;
 
             try {
-              for (var _iterator114 = inactiveGroups[Symbol.iterator](), _step114; !(_iteratorNormalCompletion114 = (_step114 = _iterator114.next()).done); _iteratorNormalCompletion114 = true) {
-                var inactiveGroup = _step114.value;
+              for (var _iterator112 = inactiveGroups[Symbol.iterator](), _step112; !(_iteratorNormalCompletion112 = (_step112 = _iterator112.next()).done); _iteratorNormalCompletion112 = true) {
+                var inactiveGroup = _step112.value;
 
                 if (nodeIdToInsertInside == inactiveGroup.id) {
                   // we have found the group we want to insert into
@@ -8685,16 +8408,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError114 = true;
-              _iteratorError114 = err;
+              _didIteratorError112 = true;
+              _iteratorError112 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion114 && _iterator114.return) {
-                  _iterator114.return();
+                if (!_iteratorNormalCompletion112 && _iterator112.return) {
+                  _iterator112.return();
                 }
               } finally {
-                if (_didIteratorError114) {
-                  throw _iteratorError114;
+                if (_didIteratorError112) {
+                  throw _iteratorError112;
                 }
               }
             }
@@ -8728,29 +8451,29 @@ var ProjectService = function () {
     value: function addGroupChildNodesToInactive(node) {
       if (node != null) {
         var childIds = node.ids;
-        var _iteratorNormalCompletion115 = true;
-        var _didIteratorError115 = false;
-        var _iteratorError115 = undefined;
+        var _iteratorNormalCompletion113 = true;
+        var _didIteratorError113 = false;
+        var _iteratorError113 = undefined;
 
         try {
-          for (var _iterator115 = childIds[Symbol.iterator](), _step115; !(_iteratorNormalCompletion115 = (_step115 = _iterator115.next()).done); _iteratorNormalCompletion115 = true) {
-            var childId = _step115.value;
+          for (var _iterator113 = childIds[Symbol.iterator](), _step113; !(_iteratorNormalCompletion113 = (_step113 = _iterator113.next()).done); _iteratorNormalCompletion113 = true) {
+            var childId = _step113.value;
 
             var childNode = this.getNodeById(childId);
             this.project.inactiveNodes.push(childNode);
             this.inactiveStepNodes.push(childNode);
           }
         } catch (err) {
-          _didIteratorError115 = true;
-          _iteratorError115 = err;
+          _didIteratorError113 = true;
+          _iteratorError113 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion115 && _iterator115.return) {
-              _iterator115.return();
+            if (!_iteratorNormalCompletion113 && _iterator113.return) {
+              _iterator113.return();
             }
           } finally {
-            if (_didIteratorError115) {
-              throw _iteratorError115;
+            if (_didIteratorError113) {
+              throw _iteratorError113;
             }
           }
         }
@@ -8831,13 +8554,13 @@ var ProjectService = function () {
         if (group != null) {
           var childIds = group.ids;
           if (childIds != null) {
-            var _iteratorNormalCompletion116 = true;
-            var _didIteratorError116 = false;
-            var _iteratorError116 = undefined;
+            var _iteratorNormalCompletion114 = true;
+            var _didIteratorError114 = false;
+            var _iteratorError114 = undefined;
 
             try {
-              for (var _iterator116 = childIds[Symbol.iterator](), _step116; !(_iteratorNormalCompletion116 = (_step116 = _iterator116.next()).done); _iteratorNormalCompletion116 = true) {
-                var childId = _step116.value;
+              for (var _iterator114 = childIds[Symbol.iterator](), _step114; !(_iteratorNormalCompletion114 = (_step114 = _iterator114.next()).done); _iteratorNormalCompletion114 = true) {
+                var childId = _step114.value;
 
                 if (childId != null) {
                   var transitions = this.getTransitionsByFromNodeId(childId);
@@ -8865,16 +8588,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError116 = true;
-              _iteratorError116 = err;
+              _didIteratorError114 = true;
+              _iteratorError114 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion116 && _iterator116.return) {
-                  _iterator116.return();
+                if (!_iteratorNormalCompletion114 && _iterator114.return) {
+                  _iterator114.return();
                 }
               } finally {
-                if (_didIteratorError116) {
-                  throw _iteratorError116;
+                if (_didIteratorError114) {
+                  throw _iteratorError114;
                 }
               }
             }
@@ -8934,13 +8657,13 @@ var ProjectService = function () {
             var childIds = groupThatTransitionsToGroupWeAreMoving.ids;
 
             if (childIds != null) {
-              var _iteratorNormalCompletion117 = true;
-              var _didIteratorError117 = false;
-              var _iteratorError117 = undefined;
+              var _iteratorNormalCompletion115 = true;
+              var _didIteratorError115 = false;
+              var _iteratorError115 = undefined;
 
               try {
-                for (var _iterator117 = childIds[Symbol.iterator](), _step117; !(_iteratorNormalCompletion117 = (_step117 = _iterator117.next()).done); _iteratorNormalCompletion117 = true) {
-                  var childId = _step117.value;
+                for (var _iterator115 = childIds[Symbol.iterator](), _step115; !(_iteratorNormalCompletion115 = (_step115 = _iterator115.next()).done); _iteratorNormalCompletion115 = true) {
+                  var childId = _step115.value;
 
                   var transitionsFromChild = this.getTransitionsByFromNodeId(childId);
                   if (transitionsFromChild != null) {
@@ -8969,16 +8692,16 @@ var ProjectService = function () {
                   }
                 }
               } catch (err) {
-                _didIteratorError117 = true;
-                _iteratorError117 = err;
+                _didIteratorError115 = true;
+                _iteratorError115 = err;
               } finally {
                 try {
-                  if (!_iteratorNormalCompletion117 && _iterator117.return) {
-                    _iterator117.return();
+                  if (!_iteratorNormalCompletion115 && _iterator115.return) {
+                    _iterator115.return();
                   }
                 } finally {
-                  if (_didIteratorError117) {
-                    throw _iteratorError117;
+                  if (_didIteratorError115) {
+                    throw _iteratorError115;
                   }
                 }
               }
@@ -8996,23 +8719,23 @@ var ProjectService = function () {
               var _childIds3 = groupThatTransitionsToGroupWeAreMoving.ids;
 
               if (_childIds3 != null) {
-                var _iteratorNormalCompletion118 = true;
-                var _didIteratorError118 = false;
-                var _iteratorError118 = undefined;
+                var _iteratorNormalCompletion116 = true;
+                var _didIteratorError116 = false;
+                var _iteratorError116 = undefined;
 
                 try {
-                  for (var _iterator118 = _childIds3[Symbol.iterator](), _step118; !(_iteratorNormalCompletion118 = (_step118 = _iterator118.next()).done); _iteratorNormalCompletion118 = true) {
-                    var _childId3 = _step118.value;
+                  for (var _iterator116 = _childIds3[Symbol.iterator](), _step116; !(_iteratorNormalCompletion116 = (_step116 = _iterator116.next()).done); _iteratorNormalCompletion116 = true) {
+                    var _childId3 = _step116.value;
 
                     var _transitionsFromChild = this.getTransitionsByFromNodeId(_childId3);
                     if (_transitionsFromChild != null) {
-                      var _iteratorNormalCompletion119 = true;
-                      var _didIteratorError119 = false;
-                      var _iteratorError119 = undefined;
+                      var _iteratorNormalCompletion117 = true;
+                      var _didIteratorError117 = false;
+                      var _iteratorError117 = undefined;
 
                       try {
-                        for (var _iterator119 = _transitionsFromChild[Symbol.iterator](), _step119; !(_iteratorNormalCompletion119 = (_step119 = _iterator119.next()).done); _iteratorNormalCompletion119 = true) {
-                          var _transitionFromChild = _step119.value;
+                        for (var _iterator117 = _transitionsFromChild[Symbol.iterator](), _step117; !(_iteratorNormalCompletion117 = (_step117 = _iterator117.next()).done); _iteratorNormalCompletion117 = true) {
+                          var _transitionFromChild = _step117.value;
 
                           if (_transitionFromChild != null) {
                             var _toNodeId8 = _transitionFromChild.to;
@@ -9034,32 +8757,32 @@ var ProjectService = function () {
                           }
                         }
                       } catch (err) {
-                        _didIteratorError119 = true;
-                        _iteratorError119 = err;
+                        _didIteratorError117 = true;
+                        _iteratorError117 = err;
                       } finally {
                         try {
-                          if (!_iteratorNormalCompletion119 && _iterator119.return) {
-                            _iterator119.return();
+                          if (!_iteratorNormalCompletion117 && _iterator117.return) {
+                            _iterator117.return();
                           }
                         } finally {
-                          if (_didIteratorError119) {
-                            throw _iteratorError119;
+                          if (_didIteratorError117) {
+                            throw _iteratorError117;
                           }
                         }
                       }
                     }
                   }
                 } catch (err) {
-                  _didIteratorError118 = true;
-                  _iteratorError118 = err;
+                  _didIteratorError116 = true;
+                  _iteratorError116 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion118 && _iterator118.return) {
-                      _iterator118.return();
+                    if (!_iteratorNormalCompletion116 && _iterator116.return) {
+                      _iterator116.return();
                     }
                   } finally {
-                    if (_didIteratorError118) {
-                      throw _iteratorError118;
+                    if (_didIteratorError116) {
+                      throw _iteratorError116;
                     }
                   }
                 }
@@ -9084,13 +8807,13 @@ var ProjectService = function () {
         if (nodeContent != null) {
           var components = nodeContent.components;
           if (components != null) {
-            var _iteratorNormalCompletion120 = true;
-            var _didIteratorError120 = false;
-            var _iteratorError120 = undefined;
+            var _iteratorNormalCompletion118 = true;
+            var _didIteratorError118 = false;
+            var _iteratorError118 = undefined;
 
             try {
-              for (var _iterator120 = components[Symbol.iterator](), _step120; !(_iteratorNormalCompletion120 = (_step120 = _iterator120.next()).done); _iteratorNormalCompletion120 = true) {
-                var component = _step120.value;
+              for (var _iterator118 = components[Symbol.iterator](), _step118; !(_iteratorNormalCompletion118 = (_step118 = _iterator118.next()).done); _iteratorNormalCompletion118 = true) {
+                var component = _step118.value;
 
                 if (component != null) {
                   var componentHasWork = this.componentHasWork(component);
@@ -9100,16 +8823,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError120 = true;
-              _iteratorError120 = err;
+              _didIteratorError118 = true;
+              _iteratorError118 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion120 && _iterator120.return) {
-                  _iterator120.return();
+                if (!_iteratorNormalCompletion118 && _iterator118.return) {
+                  _iterator118.return();
                 }
               } finally {
-                if (_didIteratorError120) {
-                  throw _iteratorError120;
+                if (_didIteratorError118) {
+                  throw _iteratorError118;
                 }
               }
             }
@@ -9239,24 +8962,24 @@ var ProjectService = function () {
   }, {
     key: 'isComponentIdUsed',
     value: function isComponentIdUsed(componentId) {
-      var _iteratorNormalCompletion121 = true;
-      var _didIteratorError121 = false;
-      var _iteratorError121 = undefined;
+      var _iteratorNormalCompletion119 = true;
+      var _didIteratorError119 = false;
+      var _iteratorError119 = undefined;
 
       try {
-        for (var _iterator121 = this.project.nodes[Symbol.iterator](), _step121; !(_iteratorNormalCompletion121 = (_step121 = _iterator121.next()).done); _iteratorNormalCompletion121 = true) {
-          var node = _step121.value;
+        for (var _iterator119 = this.project.nodes[Symbol.iterator](), _step119; !(_iteratorNormalCompletion119 = (_step119 = _iterator119.next()).done); _iteratorNormalCompletion119 = true) {
+          var node = _step119.value;
 
           if (node != null) {
             var components = node.components;
             if (components != null) {
-              var _iteratorNormalCompletion123 = true;
-              var _didIteratorError123 = false;
-              var _iteratorError123 = undefined;
+              var _iteratorNormalCompletion121 = true;
+              var _didIteratorError121 = false;
+              var _iteratorError121 = undefined;
 
               try {
-                for (var _iterator123 = components[Symbol.iterator](), _step123; !(_iteratorNormalCompletion123 = (_step123 = _iterator123.next()).done); _iteratorNormalCompletion123 = true) {
-                  var component = _step123.value;
+                for (var _iterator121 = components[Symbol.iterator](), _step121; !(_iteratorNormalCompletion121 = (_step121 = _iterator121.next()).done); _iteratorNormalCompletion121 = true) {
+                  var component = _step121.value;
 
                   if (component != null) {
                     if (componentId === component.id) {
@@ -9265,16 +8988,16 @@ var ProjectService = function () {
                   }
                 }
               } catch (err) {
-                _didIteratorError123 = true;
-                _iteratorError123 = err;
+                _didIteratorError121 = true;
+                _iteratorError121 = err;
               } finally {
                 try {
-                  if (!_iteratorNormalCompletion123 && _iterator123.return) {
-                    _iterator123.return();
+                  if (!_iteratorNormalCompletion121 && _iterator121.return) {
+                    _iterator121.return();
                   }
                 } finally {
-                  if (_didIteratorError123) {
-                    throw _iteratorError123;
+                  if (_didIteratorError121) {
+                    throw _iteratorError121;
                   }
                 }
               }
@@ -9282,38 +9005,38 @@ var ProjectService = function () {
           }
         }
       } catch (err) {
-        _didIteratorError121 = true;
-        _iteratorError121 = err;
+        _didIteratorError119 = true;
+        _iteratorError119 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion121 && _iterator121.return) {
-            _iterator121.return();
+          if (!_iteratorNormalCompletion119 && _iterator119.return) {
+            _iterator119.return();
           }
         } finally {
-          if (_didIteratorError121) {
-            throw _iteratorError121;
+          if (_didIteratorError119) {
+            throw _iteratorError119;
           }
         }
       }
 
-      var _iteratorNormalCompletion122 = true;
-      var _didIteratorError122 = false;
-      var _iteratorError122 = undefined;
+      var _iteratorNormalCompletion120 = true;
+      var _didIteratorError120 = false;
+      var _iteratorError120 = undefined;
 
       try {
-        for (var _iterator122 = this.project.inactiveNodes[Symbol.iterator](), _step122; !(_iteratorNormalCompletion122 = (_step122 = _iterator122.next()).done); _iteratorNormalCompletion122 = true) {
-          var _node = _step122.value;
+        for (var _iterator120 = this.project.inactiveNodes[Symbol.iterator](), _step120; !(_iteratorNormalCompletion120 = (_step120 = _iterator120.next()).done); _iteratorNormalCompletion120 = true) {
+          var _node = _step120.value;
 
           if (_node != null) {
             var _components = _node.components;
             if (_components != null) {
-              var _iteratorNormalCompletion124 = true;
-              var _didIteratorError124 = false;
-              var _iteratorError124 = undefined;
+              var _iteratorNormalCompletion122 = true;
+              var _didIteratorError122 = false;
+              var _iteratorError122 = undefined;
 
               try {
-                for (var _iterator124 = _components[Symbol.iterator](), _step124; !(_iteratorNormalCompletion124 = (_step124 = _iterator124.next()).done); _iteratorNormalCompletion124 = true) {
-                  var _component = _step124.value;
+                for (var _iterator122 = _components[Symbol.iterator](), _step122; !(_iteratorNormalCompletion122 = (_step122 = _iterator122.next()).done); _iteratorNormalCompletion122 = true) {
+                  var _component = _step122.value;
 
                   if (_component != null) {
                     if (componentId === _component.id) {
@@ -9322,16 +9045,16 @@ var ProjectService = function () {
                   }
                 }
               } catch (err) {
-                _didIteratorError124 = true;
-                _iteratorError124 = err;
+                _didIteratorError122 = true;
+                _iteratorError122 = err;
               } finally {
                 try {
-                  if (!_iteratorNormalCompletion124 && _iterator124.return) {
-                    _iterator124.return();
+                  if (!_iteratorNormalCompletion122 && _iterator122.return) {
+                    _iterator122.return();
                   }
                 } finally {
-                  if (_didIteratorError124) {
-                    throw _iteratorError124;
+                  if (_didIteratorError122) {
+                    throw _iteratorError122;
                   }
                 }
               }
@@ -9339,16 +9062,16 @@ var ProjectService = function () {
           }
         }
       } catch (err) {
-        _didIteratorError122 = true;
-        _iteratorError122 = err;
+        _didIteratorError120 = true;
+        _iteratorError120 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion122 && _iterator122.return) {
-            _iterator122.return();
+          if (!_iteratorNormalCompletion120 && _iterator120.return) {
+            _iterator120.return();
           }
         } finally {
-          if (_didIteratorError122) {
-            throw _iteratorError122;
+          if (_didIteratorError120) {
+            throw _iteratorError120;
           }
         }
       }
@@ -9375,13 +9098,13 @@ var ProjectService = function () {
         if (node != null) {
           var constraints = node.constraints;
           if (constraints != null) {
-            var _iteratorNormalCompletion125 = true;
-            var _didIteratorError125 = false;
-            var _iteratorError125 = undefined;
+            var _iteratorNormalCompletion123 = true;
+            var _didIteratorError123 = false;
+            var _iteratorError123 = undefined;
 
             try {
-              for (var _iterator125 = constraints[Symbol.iterator](), _step125; !(_iteratorNormalCompletion125 = (_step125 = _iterator125.next()).done); _iteratorNormalCompletion125 = true) {
-                var constraint = _step125.value;
+              for (var _iterator123 = constraints[Symbol.iterator](), _step123; !(_iteratorNormalCompletion123 = (_step123 = _iterator123.next()).done); _iteratorNormalCompletion123 = true) {
+                var constraint = _step123.value;
 
                 if (constraint != null) {
                   var constraintId = constraint.id;
@@ -9391,16 +9114,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError125 = true;
-              _iteratorError125 = err;
+              _didIteratorError123 = true;
+              _iteratorError123 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion125 && _iterator125.return) {
-                  _iterator125.return();
+                if (!_iteratorNormalCompletion123 && _iterator123.return) {
+                  _iterator123.return();
                 }
               } finally {
-                if (_didIteratorError125) {
-                  throw _iteratorError125;
+                if (_didIteratorError123) {
+                  throw _iteratorError123;
                 }
               }
             }
@@ -9438,13 +9161,13 @@ var ProjectService = function () {
       var nodeIdsInBranch = [];
       var nodes = this.getNodes();
       if (nodes != null) {
-        var _iteratorNormalCompletion126 = true;
-        var _didIteratorError126 = false;
-        var _iteratorError126 = undefined;
+        var _iteratorNormalCompletion124 = true;
+        var _didIteratorError124 = false;
+        var _iteratorError124 = undefined;
 
         try {
-          for (var _iterator126 = nodes[Symbol.iterator](), _step126; !(_iteratorNormalCompletion126 = (_step126 = _iterator126.next()).done); _iteratorNormalCompletion126 = true) {
-            var node = _step126.value;
+          for (var _iterator124 = nodes[Symbol.iterator](), _step124; !(_iteratorNormalCompletion124 = (_step124 = _iterator124.next()).done); _iteratorNormalCompletion124 = true) {
+            var node = _step124.value;
 
             if (node != null) {
               if (this.hasBranchPathTakenConstraint(node, fromNodeId, toNodeId)) {
@@ -9457,16 +9180,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError126 = true;
-          _iteratorError126 = err;
+          _didIteratorError124 = true;
+          _iteratorError124 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion126 && _iterator126.return) {
-              _iterator126.return();
+            if (!_iteratorNormalCompletion124 && _iterator124.return) {
+              _iterator124.return();
             }
           } finally {
-            if (_didIteratorError126) {
-              throw _iteratorError126;
+            if (_didIteratorError124) {
+              throw _iteratorError124;
             }
           }
         }
@@ -9528,24 +9251,24 @@ var ProjectService = function () {
       if (node != null) {
         var constraints = node.constraints;
         if (constraints != null) {
-          var _iteratorNormalCompletion127 = true;
-          var _didIteratorError127 = false;
-          var _iteratorError127 = undefined;
+          var _iteratorNormalCompletion125 = true;
+          var _didIteratorError125 = false;
+          var _iteratorError125 = undefined;
 
           try {
-            for (var _iterator127 = constraints[Symbol.iterator](), _step127; !(_iteratorNormalCompletion127 = (_step127 = _iterator127.next()).done); _iteratorNormalCompletion127 = true) {
-              var constraint = _step127.value;
+            for (var _iterator125 = constraints[Symbol.iterator](), _step125; !(_iteratorNormalCompletion125 = (_step125 = _iterator125.next()).done); _iteratorNormalCompletion125 = true) {
+              var constraint = _step125.value;
 
               if (constraint != null) {
                 var removalCriteria = constraint.removalCriteria;
                 if (removalCriteria != null) {
-                  var _iteratorNormalCompletion128 = true;
-                  var _didIteratorError128 = false;
-                  var _iteratorError128 = undefined;
+                  var _iteratorNormalCompletion126 = true;
+                  var _didIteratorError126 = false;
+                  var _iteratorError126 = undefined;
 
                   try {
-                    for (var _iterator128 = removalCriteria[Symbol.iterator](), _step128; !(_iteratorNormalCompletion128 = (_step128 = _iterator128.next()).done); _iteratorNormalCompletion128 = true) {
-                      var removalCriterion = _step128.value;
+                    for (var _iterator126 = removalCriteria[Symbol.iterator](), _step126; !(_iteratorNormalCompletion126 = (_step126 = _iterator126.next()).done); _iteratorNormalCompletion126 = true) {
+                      var removalCriterion = _step126.value;
 
                       if (removalCriterion != null) {
                         var name = removalCriterion.name;
@@ -9560,16 +9283,16 @@ var ProjectService = function () {
                       }
                     }
                   } catch (err) {
-                    _didIteratorError128 = true;
-                    _iteratorError128 = err;
+                    _didIteratorError126 = true;
+                    _iteratorError126 = err;
                   } finally {
                     try {
-                      if (!_iteratorNormalCompletion128 && _iterator128.return) {
-                        _iterator128.return();
+                      if (!_iteratorNormalCompletion126 && _iterator126.return) {
+                        _iterator126.return();
                       }
                     } finally {
-                      if (_didIteratorError128) {
-                        throw _iteratorError128;
+                      if (_didIteratorError126) {
+                        throw _iteratorError126;
                       }
                     }
                   }
@@ -9577,16 +9300,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError127 = true;
-            _iteratorError127 = err;
+            _didIteratorError125 = true;
+            _iteratorError125 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion127 && _iterator127.return) {
-                _iterator127.return();
+              if (!_iteratorNormalCompletion125 && _iterator125.return) {
+                _iterator125.return();
               }
             } finally {
-              if (_didIteratorError127) {
-                throw _iteratorError127;
+              if (_didIteratorError125) {
+                throw _iteratorError125;
               }
             }
           }
@@ -9613,13 +9336,13 @@ var ProjectService = function () {
               var removalCriteria = constraint.removalCriteria;
 
               if (removalCriteria != null) {
-                var _iteratorNormalCompletion129 = true;
-                var _didIteratorError129 = false;
-                var _iteratorError129 = undefined;
+                var _iteratorNormalCompletion127 = true;
+                var _didIteratorError127 = false;
+                var _iteratorError127 = undefined;
 
                 try {
-                  for (var _iterator129 = removalCriteria[Symbol.iterator](), _step129; !(_iteratorNormalCompletion129 = (_step129 = _iterator129.next()).done); _iteratorNormalCompletion129 = true) {
-                    var removalCriterion = _step129.value;
+                  for (var _iterator127 = removalCriteria[Symbol.iterator](), _step127; !(_iteratorNormalCompletion127 = (_step127 = _iterator127.next()).done); _iteratorNormalCompletion127 = true) {
+                    var removalCriterion = _step127.value;
 
                     if (removalCriterion != null) {
                       if (removalCriterion.name == 'branchPathTaken') {
@@ -9631,16 +9354,16 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError129 = true;
-                  _iteratorError129 = err;
+                  _didIteratorError127 = true;
+                  _iteratorError127 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion129 && _iterator129.return) {
-                      _iterator129.return();
+                    if (!_iteratorNormalCompletion127 && _iterator127.return) {
+                      _iterator127.return();
                     }
                   } finally {
-                    if (_didIteratorError129) {
-                      throw _iteratorError129;
+                    if (_didIteratorError127) {
+                      throw _iteratorError127;
                     }
                   }
                 }
@@ -9666,24 +9389,24 @@ var ProjectService = function () {
         if (node != null) {
           var constraints = node.constraints;
           if (constraints != null) {
-            var _iteratorNormalCompletion130 = true;
-            var _didIteratorError130 = false;
-            var _iteratorError130 = undefined;
+            var _iteratorNormalCompletion128 = true;
+            var _didIteratorError128 = false;
+            var _iteratorError128 = undefined;
 
             try {
-              for (var _iterator130 = constraints[Symbol.iterator](), _step130; !(_iteratorNormalCompletion130 = (_step130 = _iterator130.next()).done); _iteratorNormalCompletion130 = true) {
-                var constraint = _step130.value;
+              for (var _iterator128 = constraints[Symbol.iterator](), _step128; !(_iteratorNormalCompletion128 = (_step128 = _iterator128.next()).done); _iteratorNormalCompletion128 = true) {
+                var constraint = _step128.value;
 
                 if (constraint != null) {
                   var removalCriteria = constraint.removalCriteria;
                   if (removalCriteria != null) {
-                    var _iteratorNormalCompletion131 = true;
-                    var _didIteratorError131 = false;
-                    var _iteratorError131 = undefined;
+                    var _iteratorNormalCompletion129 = true;
+                    var _didIteratorError129 = false;
+                    var _iteratorError129 = undefined;
 
                     try {
-                      for (var _iterator131 = removalCriteria[Symbol.iterator](), _step131; !(_iteratorNormalCompletion131 = (_step131 = _iterator131.next()).done); _iteratorNormalCompletion131 = true) {
-                        var removalCriterion = _step131.value;
+                      for (var _iterator129 = removalCriteria[Symbol.iterator](), _step129; !(_iteratorNormalCompletion129 = (_step129 = _iterator129.next()).done); _iteratorNormalCompletion129 = true) {
+                        var removalCriterion = _step129.value;
 
                         if (removalCriterion != null) {
                           if (removalCriterion.name == 'branchPathTaken') {
@@ -9697,16 +9420,16 @@ var ProjectService = function () {
                         }
                       }
                     } catch (err) {
-                      _didIteratorError131 = true;
-                      _iteratorError131 = err;
+                      _didIteratorError129 = true;
+                      _iteratorError129 = err;
                     } finally {
                       try {
-                        if (!_iteratorNormalCompletion131 && _iterator131.return) {
-                          _iterator131.return();
+                        if (!_iteratorNormalCompletion129 && _iterator129.return) {
+                          _iterator129.return();
                         }
                       } finally {
-                        if (_didIteratorError131) {
-                          throw _iteratorError131;
+                        if (_didIteratorError129) {
+                          throw _iteratorError129;
                         }
                       }
                     }
@@ -9714,16 +9437,16 @@ var ProjectService = function () {
                 }
               }
             } catch (err) {
-              _didIteratorError130 = true;
-              _iteratorError130 = err;
+              _didIteratorError128 = true;
+              _iteratorError128 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion130 && _iterator130.return) {
-                  _iterator130.return();
+                if (!_iteratorNormalCompletion128 && _iterator128.return) {
+                  _iterator128.return();
                 }
               } finally {
-                if (_didIteratorError130) {
-                  throw _iteratorError130;
+                if (_didIteratorError128) {
+                  throw _iteratorError128;
                 }
               }
             }
@@ -9748,24 +9471,24 @@ var ProjectService = function () {
       if (node != null) {
         var constraints = node.constraints;
         if (constraints != null) {
-          var _iteratorNormalCompletion132 = true;
-          var _didIteratorError132 = false;
-          var _iteratorError132 = undefined;
+          var _iteratorNormalCompletion130 = true;
+          var _didIteratorError130 = false;
+          var _iteratorError130 = undefined;
 
           try {
-            for (var _iterator132 = constraints[Symbol.iterator](), _step132; !(_iteratorNormalCompletion132 = (_step132 = _iterator132.next()).done); _iteratorNormalCompletion132 = true) {
-              var constraint = _step132.value;
+            for (var _iterator130 = constraints[Symbol.iterator](), _step130; !(_iteratorNormalCompletion130 = (_step130 = _iterator130.next()).done); _iteratorNormalCompletion130 = true) {
+              var constraint = _step130.value;
 
               if (constraint != null) {
                 var removalCriteria = constraint.removalCriteria;
                 if (removalCriteria != null) {
-                  var _iteratorNormalCompletion133 = true;
-                  var _didIteratorError133 = false;
-                  var _iteratorError133 = undefined;
+                  var _iteratorNormalCompletion131 = true;
+                  var _didIteratorError131 = false;
+                  var _iteratorError131 = undefined;
 
                   try {
-                    for (var _iterator133 = removalCriteria[Symbol.iterator](), _step133; !(_iteratorNormalCompletion133 = (_step133 = _iterator133.next()).done); _iteratorNormalCompletion133 = true) {
-                      var removalCriterion = _step133.value;
+                    for (var _iterator131 = removalCriteria[Symbol.iterator](), _step131; !(_iteratorNormalCompletion131 = (_step131 = _iterator131.next()).done); _iteratorNormalCompletion131 = true) {
+                      var removalCriterion = _step131.value;
 
                       if (removalCriterion != null) {
                         if (removalCriterion.name === 'branchPathTaken') {
@@ -9785,16 +9508,16 @@ var ProjectService = function () {
                       }
                     }
                   } catch (err) {
-                    _didIteratorError133 = true;
-                    _iteratorError133 = err;
+                    _didIteratorError131 = true;
+                    _iteratorError131 = err;
                   } finally {
                     try {
-                      if (!_iteratorNormalCompletion133 && _iterator133.return) {
-                        _iterator133.return();
+                      if (!_iteratorNormalCompletion131 && _iterator131.return) {
+                        _iterator131.return();
                       }
                     } finally {
-                      if (_didIteratorError133) {
-                        throw _iteratorError133;
+                      if (_didIteratorError131) {
+                        throw _iteratorError131;
                       }
                     }
                   }
@@ -9802,16 +9525,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError132 = true;
-            _iteratorError132 = err;
+            _didIteratorError130 = true;
+            _iteratorError130 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion132 && _iterator132.return) {
-                _iterator132.return();
+              if (!_iteratorNormalCompletion130 && _iterator130.return) {
+                _iterator130.return();
               }
             } finally {
-              if (_didIteratorError132) {
-                throw _iteratorError132;
+              if (_didIteratorError130) {
+                throw _iteratorError130;
               }
             }
           }
@@ -9863,13 +9586,13 @@ var ProjectService = function () {
     value: function isFirstNodeInBranchPath(nodeId) {
       var nodes = this.getNodes();
       if (nodes != null) {
-        var _iteratorNormalCompletion134 = true;
-        var _didIteratorError134 = false;
-        var _iteratorError134 = undefined;
+        var _iteratorNormalCompletion132 = true;
+        var _didIteratorError132 = false;
+        var _iteratorError132 = undefined;
 
         try {
-          for (var _iterator134 = nodes[Symbol.iterator](), _step134; !(_iteratorNormalCompletion134 = (_step134 = _iterator134.next()).done); _iteratorNormalCompletion134 = true) {
-            var node = _step134.value;
+          for (var _iterator132 = nodes[Symbol.iterator](), _step132; !(_iteratorNormalCompletion132 = (_step132 = _iterator132.next()).done); _iteratorNormalCompletion132 = true) {
+            var node = _step132.value;
 
             if (node != null && node.transitionLogic != null && node.transitionLogic.transitions != null) {
               var transitions = node.transitionLogic.transitions;
@@ -9879,13 +9602,13 @@ var ProjectService = function () {
                  * there is more than one transition from this node
                  * which means it is a branch point
                  */
-                var _iteratorNormalCompletion135 = true;
-                var _didIteratorError135 = false;
-                var _iteratorError135 = undefined;
+                var _iteratorNormalCompletion133 = true;
+                var _didIteratorError133 = false;
+                var _iteratorError133 = undefined;
 
                 try {
-                  for (var _iterator135 = transitions[Symbol.iterator](), _step135; !(_iteratorNormalCompletion135 = (_step135 = _iterator135.next()).done); _iteratorNormalCompletion135 = true) {
-                    var transition = _step135.value;
+                  for (var _iterator133 = transitions[Symbol.iterator](), _step133; !(_iteratorNormalCompletion133 = (_step133 = _iterator133.next()).done); _iteratorNormalCompletion133 = true) {
+                    var transition = _step133.value;
 
                     if (transition != null) {
                       var transitionTo = transition.to;
@@ -9895,16 +9618,16 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError135 = true;
-                  _iteratorError135 = err;
+                  _didIteratorError133 = true;
+                  _iteratorError133 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion135 && _iterator135.return) {
-                      _iterator135.return();
+                    if (!_iteratorNormalCompletion133 && _iterator133.return) {
+                      _iterator133.return();
                     }
                   } finally {
-                    if (_didIteratorError135) {
-                      throw _iteratorError135;
+                    if (_didIteratorError133) {
+                      throw _iteratorError133;
                     }
                   }
                 }
@@ -9912,16 +9635,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError134 = true;
-          _iteratorError134 = err;
+          _didIteratorError132 = true;
+          _iteratorError132 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion134 && _iterator134.return) {
-              _iterator134.return();
+            if (!_iteratorNormalCompletion132 && _iterator132.return) {
+              _iterator132.return();
             }
           } finally {
-            if (_didIteratorError134) {
-              throw _iteratorError134;
+            if (_didIteratorError132) {
+              throw _iteratorError132;
             }
           }
         }
@@ -9977,13 +9700,13 @@ var ProjectService = function () {
       var branches = this.getBranches();
 
       if (branches != null) {
-        var _iteratorNormalCompletion136 = true;
-        var _didIteratorError136 = false;
-        var _iteratorError136 = undefined;
+        var _iteratorNormalCompletion134 = true;
+        var _didIteratorError134 = false;
+        var _iteratorError134 = undefined;
 
         try {
-          for (var _iterator136 = branches[Symbol.iterator](), _step136; !(_iteratorNormalCompletion136 = (_step136 = _iterator136.next()).done); _iteratorNormalCompletion136 = true) {
-            var branch = _step136.value;
+          for (var _iterator134 = branches[Symbol.iterator](), _step134; !(_iteratorNormalCompletion134 = (_step134 = _iterator134.next()).done); _iteratorNormalCompletion134 = true) {
+            var branch = _step134.value;
 
             if (branch != null) {
               if (branch.branchStartPoint == nodeId) {
@@ -9996,16 +9719,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError136 = true;
-          _iteratorError136 = err;
+          _didIteratorError134 = true;
+          _iteratorError134 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion136 && _iterator136.return) {
-              _iterator136.return();
+            if (!_iteratorNormalCompletion134 && _iterator134.return) {
+              _iterator134.return();
             }
           } finally {
-            if (_didIteratorError136) {
-              throw _iteratorError136;
+            if (_didIteratorError134) {
+              throw _iteratorError134;
             }
           }
         }
@@ -10029,13 +9752,13 @@ var ProjectService = function () {
       var branches = this.getBranches();
 
       if (branches != null) {
-        var _iteratorNormalCompletion137 = true;
-        var _didIteratorError137 = false;
-        var _iteratorError137 = undefined;
+        var _iteratorNormalCompletion135 = true;
+        var _didIteratorError135 = false;
+        var _iteratorError135 = undefined;
 
         try {
-          for (var _iterator137 = branches[Symbol.iterator](), _step137; !(_iteratorNormalCompletion137 = (_step137 = _iterator137.next()).done); _iteratorNormalCompletion137 = true) {
-            var branch = _step137.value;
+          for (var _iterator135 = branches[Symbol.iterator](), _step135; !(_iteratorNormalCompletion135 = (_step135 = _iterator135.next()).done); _iteratorNormalCompletion135 = true) {
+            var branch = _step135.value;
 
             if (branch != null) {
               if (branch.branchEndPoint == nodeId) {
@@ -10048,16 +9771,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError137 = true;
-          _iteratorError137 = err;
+          _didIteratorError135 = true;
+          _iteratorError135 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion137 && _iterator137.return) {
-              _iterator137.return();
+            if (!_iteratorNormalCompletion135 && _iterator135.return) {
+              _iterator135.return();
             }
           } finally {
-            if (_didIteratorError137) {
-              throw _iteratorError137;
+            if (_didIteratorError135) {
+              throw _iteratorError135;
             }
           }
         }
@@ -10078,13 +9801,13 @@ var ProjectService = function () {
       var allBranches = this.getBranches();
 
       if (allBranches != null) {
-        var _iteratorNormalCompletion138 = true;
-        var _didIteratorError138 = false;
-        var _iteratorError138 = undefined;
+        var _iteratorNormalCompletion136 = true;
+        var _didIteratorError136 = false;
+        var _iteratorError136 = undefined;
 
         try {
-          for (var _iterator138 = allBranches[Symbol.iterator](), _step138; !(_iteratorNormalCompletion138 = (_step138 = _iterator138.next()).done); _iteratorNormalCompletion138 = true) {
-            var branch = _step138.value;
+          for (var _iterator136 = allBranches[Symbol.iterator](), _step136; !(_iteratorNormalCompletion136 = (_step136 = _iterator136.next()).done); _iteratorNormalCompletion136 = true) {
+            var branch = _step136.value;
 
             if (branch != null) {
               if (nodeId == branch.branchStartPoint) {
@@ -10097,16 +9820,16 @@ var ProjectService = function () {
             }
           }
         } catch (err) {
-          _didIteratorError138 = true;
-          _iteratorError138 = err;
+          _didIteratorError136 = true;
+          _iteratorError136 = err;
         } finally {
           try {
-            if (!_iteratorNormalCompletion138 && _iterator138.return) {
-              _iterator138.return();
+            if (!_iteratorNormalCompletion136 && _iterator136.return) {
+              _iterator136.return();
             }
           } finally {
-            if (_didIteratorError138) {
-              throw _iteratorError138;
+            if (_didIteratorError136) {
+              throw _iteratorError136;
             }
           }
         }
@@ -10302,13 +10025,13 @@ var ProjectService = function () {
                  * would have gone inside the other block of code where
                  * this.isBranchStartPoint() is true.
                  */
-                var _iteratorNormalCompletion139 = true;
-                var _didIteratorError139 = false;
-                var _iteratorError139 = undefined;
+                var _iteratorNormalCompletion137 = true;
+                var _didIteratorError137 = false;
+                var _iteratorError137 = undefined;
 
                 try {
-                  for (var _iterator139 = transitions[Symbol.iterator](), _step139; !(_iteratorNormalCompletion139 = (_step139 = _iterator139.next()).done); _iteratorNormalCompletion139 = true) {
-                    var transition = _step139.value;
+                  for (var _iterator137 = transitions[Symbol.iterator](), _step137; !(_iteratorNormalCompletion137 = (_step137 = _iterator137.next()).done); _iteratorNormalCompletion137 = true) {
+                    var transition = _step137.value;
 
                     if (transition != null) {
                       if (this.isBranchMergePoint(transition.to)) {} else {
@@ -10317,16 +10040,16 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError139 = true;
-                  _iteratorError139 = err;
+                  _didIteratorError137 = true;
+                  _iteratorError137 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion139 && _iterator139.return) {
-                      _iterator139.return();
+                    if (!_iteratorNormalCompletion137 && _iterator137.return) {
+                      _iterator137.return();
                     }
                   } finally {
-                    if (_didIteratorError139) {
-                      throw _iteratorError139;
+                    if (_didIteratorError137) {
+                      throw _iteratorError137;
                     }
                   }
                 }
@@ -10334,29 +10057,29 @@ var ProjectService = function () {
                 // if there are no transitions, check if the parent group has a transition
 
                 if (parentGroup != null && parentGroup.transitionLogic != null && parentGroup.transitionLogic.transitions != null && parentGroup.transitionLogic.transitions.length > 0) {
-                  var _iteratorNormalCompletion140 = true;
-                  var _didIteratorError140 = false;
-                  var _iteratorError140 = undefined;
+                  var _iteratorNormalCompletion138 = true;
+                  var _didIteratorError138 = false;
+                  var _iteratorError138 = undefined;
 
                   try {
-                    for (var _iterator140 = parentGroup.transitionLogic.transitions[Symbol.iterator](), _step140; !(_iteratorNormalCompletion140 = (_step140 = _iterator140.next()).done); _iteratorNormalCompletion140 = true) {
-                      var _transition4 = _step140.value;
+                    for (var _iterator138 = parentGroup.transitionLogic.transitions[Symbol.iterator](), _step138; !(_iteratorNormalCompletion138 = (_step138 = _iterator138.next()).done); _iteratorNormalCompletion138 = true) {
+                      var _transition4 = _step138.value;
 
                       if (_transition4 != null) {
                         this.calculateNodeNumbersHelper(_transition4.to, currentActivityNumber, currentStepNumber, branchLetterCode);
                       }
                     }
                   } catch (err) {
-                    _didIteratorError140 = true;
-                    _iteratorError140 = err;
+                    _didIteratorError138 = true;
+                    _iteratorError138 = err;
                   } finally {
                     try {
-                      if (!_iteratorNormalCompletion140 && _iterator140.return) {
-                        _iterator140.return();
+                      if (!_iteratorNormalCompletion138 && _iterator138.return) {
+                        _iterator138.return();
                       }
                     } finally {
-                      if (_didIteratorError140) {
-                        throw _iteratorError140;
+                      if (_didIteratorError138) {
+                        throw _iteratorError138;
                       }
                     }
                   }
@@ -10413,13 +10136,13 @@ var ProjectService = function () {
                */
 
               if (_node2 != null && _node2.transitionLogic != null && _node2.transitionLogic.transitions != null && _node2.transitionLogic.transitions.length > 0) {
-                var _iteratorNormalCompletion141 = true;
-                var _didIteratorError141 = false;
-                var _iteratorError141 = undefined;
+                var _iteratorNormalCompletion139 = true;
+                var _didIteratorError139 = false;
+                var _iteratorError139 = undefined;
 
                 try {
-                  for (var _iterator141 = _node2.transitionLogic.transitions[Symbol.iterator](), _step141; !(_iteratorNormalCompletion141 = (_step141 = _iterator141.next()).done); _iteratorNormalCompletion141 = true) {
-                    var _transition5 = _step141.value;
+                  for (var _iterator139 = _node2.transitionLogic.transitions[Symbol.iterator](), _step139; !(_iteratorNormalCompletion139 = (_step139 = _iterator139.next()).done); _iteratorNormalCompletion139 = true) {
+                    var _transition5 = _step139.value;
 
                     if (_transition5 != null) {
                       /*
@@ -10430,16 +10153,16 @@ var ProjectService = function () {
                     }
                   }
                 } catch (err) {
-                  _didIteratorError141 = true;
-                  _iteratorError141 = err;
+                  _didIteratorError139 = true;
+                  _iteratorError139 = err;
                 } finally {
                   try {
-                    if (!_iteratorNormalCompletion141 && _iterator141.return) {
-                      _iterator141.return();
+                    if (!_iteratorNormalCompletion139 && _iterator139.return) {
+                      _iterator139.return();
                     }
                   } finally {
-                    if (_didIteratorError141) {
-                      throw _iteratorError141;
+                    if (_didIteratorError139) {
+                      throw _iteratorError139;
                     }
                   }
                 }
@@ -10533,29 +10256,29 @@ var ProjectService = function () {
         if (achievements != null) {
           var achievementItems = achievements.items;
           if (achievementItems != null) {
-            var _iteratorNormalCompletion142 = true;
-            var _didIteratorError142 = false;
-            var _iteratorError142 = undefined;
+            var _iteratorNormalCompletion140 = true;
+            var _didIteratorError140 = false;
+            var _iteratorError140 = undefined;
 
             try {
-              for (var _iterator142 = achievementItems[Symbol.iterator](), _step142; !(_iteratorNormalCompletion142 = (_step142 = _iterator142.next()).done); _iteratorNormalCompletion142 = true) {
-                var achievement = _step142.value;
+              for (var _iterator140 = achievementItems[Symbol.iterator](), _step140; !(_iteratorNormalCompletion140 = (_step140 = _iterator140.next()).done); _iteratorNormalCompletion140 = true) {
+                var achievement = _step140.value;
 
                 if (achievement != null && achievement.id == achievementId) {
                   return achievement;
                 }
               }
             } catch (err) {
-              _didIteratorError142 = true;
-              _iteratorError142 = err;
+              _didIteratorError140 = true;
+              _iteratorError140 = err;
             } finally {
               try {
-                if (!_iteratorNormalCompletion142 && _iterator142.return) {
-                  _iterator142.return();
+                if (!_iteratorNormalCompletion140 && _iterator140.return) {
+                  _iterator140.return();
                 }
               } finally {
-                if (_didIteratorError142) {
-                  throw _iteratorError142;
+                if (_didIteratorError140) {
+                  throw _iteratorError140;
                 }
               }
             }
@@ -10584,13 +10307,13 @@ var ProjectService = function () {
 
         var components = nodeContent.components;
         if (components && components.length) {
-          var _iteratorNormalCompletion143 = true;
-          var _didIteratorError143 = false;
-          var _iteratorError143 = undefined;
+          var _iteratorNormalCompletion141 = true;
+          var _didIteratorError141 = false;
+          var _iteratorError141 = undefined;
 
           try {
-            for (var _iterator143 = components[Symbol.iterator](), _step143; !(_iteratorNormalCompletion143 = (_step143 = _iterator143.next()).done); _iteratorNormalCompletion143 = true) {
-              var component = _step143.value;
+            for (var _iterator141 = components[Symbol.iterator](), _step141; !(_iteratorNormalCompletion141 = (_step141 = _iterator141.next()).done); _iteratorNormalCompletion141 = true) {
+              var component = _step141.value;
 
               if (component) {
                 var componentRubric = component.rubric;
@@ -10600,16 +10323,16 @@ var ProjectService = function () {
               }
             }
           } catch (err) {
-            _didIteratorError143 = true;
-            _iteratorError143 = err;
+            _didIteratorError141 = true;
+            _iteratorError141 = err;
           } finally {
             try {
-              if (!_iteratorNormalCompletion143 && _iterator143.return) {
-                _iterator143.return();
+              if (!_iteratorNormalCompletion141 && _iterator141.return) {
+                _iterator141.return();
               }
             } finally {
-              if (_didIteratorError143) {
-                throw _iteratorError143;
+              if (_didIteratorError141) {
+                throw _iteratorError141;
               }
             }
           }
@@ -10696,29 +10419,29 @@ var ProjectService = function () {
     key: 'isSpaceExists',
     value: function isSpaceExists(id) {
       var spaces = this.getSpaces();
-      var _iteratorNormalCompletion144 = true;
-      var _didIteratorError144 = false;
-      var _iteratorError144 = undefined;
+      var _iteratorNormalCompletion142 = true;
+      var _didIteratorError142 = false;
+      var _iteratorError142 = undefined;
 
       try {
-        for (var _iterator144 = spaces[Symbol.iterator](), _step144; !(_iteratorNormalCompletion144 = (_step144 = _iterator144.next()).done); _iteratorNormalCompletion144 = true) {
-          var space = _step144.value;
+        for (var _iterator142 = spaces[Symbol.iterator](), _step142; !(_iteratorNormalCompletion142 = (_step142 = _iterator142.next()).done); _iteratorNormalCompletion142 = true) {
+          var space = _step142.value;
 
           if (space.id === id) {
             return true;
           }
         }
       } catch (err) {
-        _didIteratorError144 = true;
-        _iteratorError144 = err;
+        _didIteratorError142 = true;
+        _iteratorError142 = err;
       } finally {
         try {
-          if (!_iteratorNormalCompletion144 && _iterator144.return) {
-            _iterator144.return();
+          if (!_iteratorNormalCompletion142 && _iterator142.return) {
+            _iterator142.return();
           }
         } finally {
-          if (_didIteratorError144) {
-            throw _iteratorError144;
+          if (_didIteratorError142) {
+            throw _iteratorError142;
           }
         }
       }
diff --git a/src/main/webapp/wise5/services/projectService.js.map b/src/main/webapp/wise5/services/projectService.js.map
index 7198054db6..6c58eab966 100644
--- a/src/main/webapp/wise5/services/projectService.js.map
+++ b/src/main/webapp/wise5/services/projectService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["projectService.es6"],"names":["ProjectService","$filter","$http","$injector","$q","$rootScope","ConfigService","UtilService","project","transitions","applicationNodes","inactiveStepNodes","inactiveGroupNodes","groupNodes","idToNode","idToElement","metadata","activeConstraints","rootNode","idToPosition","idToOrder","nodeCount","componentServices","nodeIdToNumber","nodeIdToIsInBranchPath","nodeIdToBranchPathLetter","achievements","isNodeAffectedByConstraintResult","flattenedProjectAsNodeIds","$translate","additionalProcessingFunctionsMap","filters","parseProject","clearBranchesCache","style","name","getProjectMetadata","title","projectTitle","nodes","planningNodes","nodeId","node","getNodeById","ids","id","getNodes","existingNodes","replaced","n","length","existingNode","existingNodeId","splice","push","$broadcast","groupId","group","groupChildNodeIds","indexOf","groupNode","type","applicationNode","nodeType","content","constraints","setIdToNode","setIdToElement","addNode","addGroupNode","addApplicationNode","addNodeToGroupNode","isPreview","getConfigParam","constraint","planningNode","clearProjectFields","loadNodes","loadPlanningNodes","inactiveNodes","loadInactiveNodes","constraintId","active","getRootNode","setNodeOrder","branches","getBranches","branchNodeIds","pos","setIdToPosition","isNodeIdInABranch","getPositionById","b","getBranchNodePositionById","calculateNodeNumbers","isGroupNode","childIds","childId","child","getMode","planningIds","availablePlanningNodes","planningId","startGroupId","stepNumber","importProjectIdToOrder","getNodeOrderOfProjectHelper","result","item","c","childStepNumber","i","path","getPathToNode","undefined","order","getIdByOrder","integerToAlpha","int","alphabet","branch","branchPaths","p","branchPath","nodeIndex","startPoint","branchStartPoint","startPointPos","branchPathPos","num","position","Object","entries","value","element","contentString","JSON","stringify","replaceAssetPaths","parse","contentBaseURL","replace","RegExp","matchedString","delimiter","matchedStringWithoutQuotes","substr","charAt","injectClickToSnipImageIntoContentString","imgMatcher","matchGroup1","newString","tempNode","getNodePositionById","nodeIcon","defaultName","color","fontSet","fontName","imgSrc","imgAlt","icons","default","icon","$","extend","getGroupNodes","isNodeDirectChildOfGroup","getInactiveGroupNodes","inactiveGroupNode","parentGroup","getParentGroup","val","depth","parent","getNodeDepth","groupIds","descendents","getDescendentsOfGroup","childDescendents","concat","projectStartId","getStartNodeId","groups","getGroups","groupStartId","startId","startNodeId","allConstraints","isNodeAffectedByConstraint","getConstraintsOnNode","orderedNodeIds","getFlattenedProjectAsNodeIds","sort","constraintsComparatorGenerator","constraintA","constraintB","constraintAIndex","targetId","constraintBIndex","rememberedResult","getIsNodeAffectedByConstraintResult","action","isNodeIdAfter","targetNode","isNodeDescendentOfGroup","setIsNodeAffectedByConstraintResult","nodeIdBefore","nodeIdAfter","isApplicationNode","pathsToEnd","getAllPaths","pathToEnd","index","parentGroupId","parentGroupIndex","getTransitionsByFromNodeId","transition","toNodeId","to","fromNodeId","transitionLogic","getTransitionLogicByFromNodeId","nodesByToNodeId","nodeHasTransitionToNodeId","getInactiveNodes","inactiveNode","nodeIds","getNodesByToNodeId","groupsThatPointToNodeId","hasTransitionTo","transitionsResults","projectURL","Date","getTime","get","then","projectJSON","data","setProject","projectId","configURL","window","configJSON","previewProjectURL","commitMessage","cleanupBeforeSave","getProjectId","saveProjectURL","projectJSONString","angular","toJson","httpParams","method","url","headers","params","param","commitHistory","activeNodes","getActiveNodes","activeNode","cleanupNode","checked","hasWork","hasAlert","hasNewAlert","isVisible","completionStatus","score","hasScore","maxScore","hasMaxScore","scorePct","show","components","component","cleanupComponent","wiseBaseURL","getWISEBaseURL","theme","themeSettings","recalculate","pathsSoFar","allPaths","consolidatePaths","pathSoFar","includeGroups","addedCurrentNodeId","getParentGroupId","parentGroupTransitions","parentGroupTransition","allPathsFromToNode","tempPath","unshift","firstNodeId","firstParentGroupId","lastNodeId","pop","paths","consolidatedPath","arePathsEmpty","currentPath","getNonEmptyPathIndex","getFirstNodeIdInPathAtIndex","areFirstNodeIdsInPathsTheSame","removeNodeIdFromPaths","pathsThatContainNodeId","getPathsThatContainNodeId","removeNodeIdFromPath","consumedPath","consumePathsUntilNodeId","consumedNodeIds","x","tempNodeId","pathsToConsume","pathThatContainsNodeId","tempNodeIdIndex","nodeIdIndex","tempConsumedNodeIds","pathIndex","branchesCache","getBranchesCache","findBranches","setBranchesCache","previousNodeId","branchMetaObject","createBranchMetaObject","nextCommonNodeId","findNextCommonNodeId","branchEndPoint","extractPathsUpToNodeId","removeDu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strict';\n\nclass ProjectService {\n  constructor($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService) {\n    this.$filter = $filter;\n    this.$http = $http;\n    this.$injector = $injector;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.ConfigService = ConfigService;\n    this.UtilService = UtilService;\n    this.project = null;\n    this.transitions = [];\n    this.applicationNodes = [];\n    this.inactiveStepNodes = [];\n    this.inactiveGroupNodes = [];\n    this.groupNodes = [];\n    this.idToNode = {};\n    this.idToElement = {};\n    this.metadata = {};\n    this.activeConstraints = [];\n    this.rootNode = null;\n    this.idToPosition = {};\n    this.idToOrder = {};\n    this.nodeCount = 0;\n    this.componentServices = {};\n    this.nodeIdToNumber = {};\n    this.nodeIdToIsInBranchPath = {};\n    this.nodeIdToBranchPathLetter = {};\n    this.achievements = [];\n    this.isNodeAffectedByConstraintResult = {};\n    this.flattenedProjectAsNodeIds = null;\n\n    this.$translate = this.$filter('translate');\n\n    // map from nodeId_componentId to array of additionalProcessingFunctions\n    this.additionalProcessingFunctionsMap = {};\n\n    // filtering options for navigation displays\n    this.filters = [\n      {'name': 'all', 'label': 'All'}\n      //{'name': 'todo', 'label': 'Todo'},\n      //{'name': 'completed', 'label': 'Completed'}\n    ];\n  };\n\n  setProject(project) {\n    this.project = project;\n    this.parseProject();\n  };\n\n  /**\n   * Initialize the data structures used to hold project information\n   */\n  clearProjectFields() {\n    this.transitions = [];\n    this.applicationNodes = [];\n    this.inactiveStepNodes = [];\n    this.inactiveGroupNodes = [];\n    this.groupNodes = [];\n    this.idToNode = {};\n    this.idToElement = {};\n    this.metadata = {};\n    this.activeConstraints = [];\n    this.rootNode = null;\n    this.idToPosition = {};\n    this.idToOrder = {};\n    this.nodeCount = 0;\n    this.nodeIdToIsInBranchPath = {};\n    this.achievements = [];\n    this.clearBranchesCache();\n  };\n\n  getStyle() {\n    let style = '';\n    const project = this.project;\n    if (project != null) {\n      style = project.style;\n    }\n    return style;\n  };\n\n  getFilters() {\n    return this.filters;\n  };\n\n  /**\n   * Returns the name/title of the current project\n   */\n  getProjectTitle() {\n    const name = this.getProjectMetadata().title;\n    return name ? name : 'A WISE Project (No name)';\n  };\n\n  /**\n   * Set the project title\n   */\n  setProjectTitle(projectTitle) {\n    const metadata = this.getProjectMetadata();\n    if (metadata != null) {\n      metadata.title = projectTitle;\n    }\n  }\n\n  getProjectMetadata() {\n    return this.metadata ? this.metadata : {};\n  };\n\n  getNodes() {\n    const project = this.project;\n    if (project != null) {\n      return project.nodes;\n    }\n    return null;\n  };\n\n  getPlanningNodes() {\n    const project = this.project;\n    if (project != null) {\n      return project.planningNodes;\n    }\n    return null;\n  };\n\n  getChildNodeIdsById(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node.ids) {\n      return node.ids;\n    }\n    return [];\n  };\n\n  getGroupNodes() {\n    return this.groupNodes;\n  };\n\n  isNode(id) {\n    const nodes = this.getNodes();\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          const nodeId = node.id;\n          if (nodeId === id) {\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  };\n\n  addNode(node) {\n    const existingNodes = this.project.nodes;\n    let replaced = false;\n    if (node != null && existingNodes != null) {\n      for (let n = 0; n < existingNodes.length; n++) {\n        const existingNode = existingNodes[n];\n        const existingNodeId = existingNode.id;\n        if (existingNodeId === node.id) {\n          existingNodes.splice(n, 1, node);\n          replaced = true;\n        }\n      }\n    }\n    if (!replaced) {\n      existingNodes.push(node);\n    }\n  };\n\n  addApplicationNode(node) {\n    const applicationNodes = this.applicationNodes;\n    if (node != null && applicationNodes != null) {\n      applicationNodes.push(node);\n    }\n  };\n\n  addGroupNode(node) {\n    const groupNodes = this.groupNodes;\n    if (node != null && groupNodes != null) {\n      groupNodes.push(node);\n    }\n    this.$rootScope.$broadcast('groupsChanged');\n  };\n\n  addNodeToGroupNode(groupId, nodeId) {\n    if (groupId != null && nodeId != null) {\n      const group = this.getNodeById(groupId);\n      if (group != null) {\n        const groupChildNodeIds = group.ids;\n        if (groupChildNodeIds != null) {\n          if (groupChildNodeIds.indexOf(nodeId) === -1) {\n            groupChildNodeIds.push(nodeId);\n          }\n        }\n      }\n    }\n  };\n\n  isGroupNode(id) {\n    const groupNode = this.getNodeById(id);\n    if (groupNode != null) {\n      const type = groupNode.type;\n      if (type === 'group') {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  isApplicationNode(id) {\n    const applicationNode = this.getNodeById(id);\n    if (applicationNode != null) {\n      const type = applicationNode.type;\n      if (type !== 'group') {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  getGroups() {\n    return this.groupNodes;\n  };\n\n  /**\n   * Get the inactive group nodes.\n   * @return An array of inactive group nodes.\n   */\n  getInactiveGroupNodes() {\n    return this.inactiveGroupNodes;\n  }\n\n  /**\n   * Get the inactive step nodes. This will include the inactive steps that\n   * are in an inactive group.\n   * @return An array of inactive step nodes.\n   */\n  getInactiveStepNodes() {\n    return this.inactiveStepNodes;\n  }\n\n  loadNodes(nodes) {\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          const nodeId = node.id;\n          const nodeType = node.type;\n          const content = node.content;\n          const constraints = node.constraints;\n\n          if (content != null) {\n            //node.content = this.injectAssetPaths(content);\n          }\n\n          this.setIdToNode(nodeId, node);\n          this.setIdToElement(nodeId, node);\n          this.addNode(node);\n\n          if (nodeType === 'group') {\n            this.addGroupNode(node);\n          } else {\n            this.addApplicationNode(node);\n          }\n\n          const groupId = node.groupId;\n          if (groupId != null) {\n            this.addNodeToGroupNode(groupId, nodeId);\n          }\n\n          if (constraints != null) {\n            if (this.ConfigService.isPreview() == true && this.ConfigService.getConfigParam('constraints') === false) {\n              /*\n               * if we are in preview mode and constraints are set\n               * to false, we will not add the constraints\n               */\n            } else {\n              // all other cases we will add the constraints\n              for (let constraint of constraints) {\n                this.activeConstraints.push(constraint);\n              }\n            }\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Load the planning template nodes\n   * @param planning template nodes\n   */\n  loadPlanningNodes(planningNodes) {\n    if (planningNodes != null) {\n      for (let planningNode of planningNodes) {\n        if (planningNode != null) {\n          const nodeId = planningNode.id;\n          this.setIdToNode(nodeId, planningNode);\n          this.setIdToElement(nodeId, planningNode);\n\n          // TODO: may need to add more function calls here to add the planning\n        }\n      }\n    }\n  }\n\n  /**\n   * Parse the project to detect the nodes, branches, node numbers, etc.\n   */\n  parseProject() {\n    const project = this.project;\n    if (project != null) {\n      this.clearProjectFields();\n\n      if (project.metadata) {\n        this.metadata = project.metadata;\n      }\n\n      const nodes = project.nodes;\n      this.loadNodes(nodes);\n\n      const planningNodes = project.planningNodes;\n      this.loadPlanningNodes(planningNodes);\n\n      const inactiveNodes = project.inactiveNodes;\n      this.loadInactiveNodes(inactiveNodes);\n\n      const constraints = project.constraints;\n\n      if (constraints != null) {\n        for (let constraint of constraints) {\n          if (constraint != null) {\n            const constraintId = constraint.id;\n            constraint.active = true;\n            this.setIdToElement(constraintId, constraint);\n          }\n        }\n      }\n\n      this.rootNode = this.getRootNode(nodes[0].id);\n      this.setNodeOrder(this.rootNode, this.nodeCount);\n\n      let n = nodes.length;\n      const branches = this.getBranches();\n      const branchNodeIds = [];\n\n      // set node positions\n      let id, pos;\n\n      while (n--) {\n        id = nodes[n].id;\n        if (id === this.rootNode.id) {\n          this.setIdToPosition(id, '0');\n        } else if (this.isNodeIdInABranch(branches, id)) {\n          // node is in a branch, so process later\n          branchNodeIds.push(id);\n        } else {\n          pos = this.getPositionById(id);\n          this.setIdToPosition(id, pos);\n        }\n      }\n\n      // set branch node positions\n      let b = branchNodeIds.length;\n      while (b--) {\n        id = branchNodeIds[b];\n        pos = this.getBranchNodePositionById(id);\n        this.setIdToPosition(id, pos);\n      }\n\n      /*\n       * calculate the node numbers\n       * e.g. if the step is called\n       * 1.5 View the Potential Energy\n       * then the node number is 1.5\n       */\n      this.calculateNodeNumbers();\n\n      if (this.project.achievements != null) {\n        this.achievements = this.project.achievements;\n      }\n    }\n\n    this.$rootScope.$broadcast('projectChanged');\n  };\n\n  setNodeOrder(node) {\n    this.idToOrder[node.id] = {'order': this.nodeCount};\n    this.nodeCount++;\n    if (this.isGroupNode(node.id)) {\n      let childIds = node.ids;\n      for (let childId of childIds) {\n        let child = this.getNodeById(childId);\n        this.setNodeOrder(child);\n      }\n\n      if (this.ConfigService.getMode() === 'classroomMonitor') {\n        // we're viewing the classroom monitor, so include planning nodes in the project structure\n        let planningIds = node.availablePlanningNodes;\n        if (planningIds) {\n          for (let planningId of planningIds) {\n            let child = this.getNodeById(planningId.nodeId);\n            this.setNodeOrder(child);\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Get the node order mappings of the project\n   * @param project the project JSOn\n   * @return an object containing the idToOrder mapping and also the array\n   * of nodes\n   */\n  getNodeOrderOfProject(project) {\n    const idToOrder = {};\n    idToOrder.nodeCount = 0;\n    const startGroupId = project.startGroupId;\n    const rootNode = this.getNodeById(startGroupId, project);\n    const stepNumber = '';\n    const nodes = [];\n    const importProjectIdToOrder = this.getNodeOrderOfProjectHelper(project, rootNode, idToOrder, stepNumber, nodes);\n    delete importProjectIdToOrder.nodeCount;\n    const result = {};\n    result.idToOrder = importProjectIdToOrder;\n    result.nodes = nodes;\n    return result;\n  }\n\n  /**\n   * Recursively traverse the project to calculate the node order and step numbers\n   * @param project the project JSON\n   * @param node the current node we are on\n   * @param idToOrder the mapping of node id to item\n   * @param stepNumber the current step number\n   * @param nodes the array of nodes\n   */\n  getNodeOrderOfProjectHelper(project, node, idToOrder, stepNumber, nodes) {\n    /*\n     * Create the item that we will add to the idToOrder mapping.\n     * The 'order' field determines how the project nodes are displayed\n     * when we flatten the project for displaying.\n     */\n    const item = {\n      'order': idToOrder.nodeCount,\n      'node': node,\n      'stepNumber': stepNumber\n    };\n\n    idToOrder[node.id] = item;\n    idToOrder.nodeCount++;\n    nodes.push(item);\n\n    if (node.type == 'group') {\n      const childIds = node.ids;\n      for (let c = 0; c < childIds.length; c++) {\n        const childId = childIds[c];\n        const child = this.getNodeById(childId, project);\n        let childStepNumber = stepNumber;\n\n        if (childStepNumber != '') {\n          // add the . separator for the step number e.g. 1.\n          childStepNumber += '.';\n        }\n\n        childStepNumber += (c + 1);\n        this.getNodeOrderOfProjectHelper(project, child, idToOrder, childStepNumber, nodes);\n      }\n    }\n    return idToOrder;\n  }\n\n  /**\n   * Returns the position in the project for the node with the given id. Returns null if no node with id exists.\n   * @param id a node id\n   * @return string position of the given node id in the project\n   */\n  getPositionById(id) {\n    for (let i = 0; i < this.rootNode.ids.length; i++) {\n      const node = this.getNodeById(this.rootNode.ids[i]);\n      const path = this.getPathToNode(node, i + 1, id);\n      if (path != undefined && path != null) {\n        return path;\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Returns the order of the given node id in the project. Returns null if no node with id exists.\n   * @param id String node id\n   * @return Number order of the given node id in the project\n   */\n  getOrderById(id) {\n    if (this.idToOrder[id]) {\n      return this.idToOrder[id].order;\n    }\n    return null;\n  };\n\n  /**\n   * Returns the id of the node with the given order in the project. Returns null if no order with node exists.\n   * @param order Number\n   * @return Number node id of the given order in the project\n   */\n  getIdByOrder(order) {\n    let nodeId = null;\n    for (let id in this.idToOrder) {\n      if (this.idToOrder[id].order === order) {\n        if (this.isGroupNode(id) && order > 1) {\n          nodeId = this.getIdByOrder(order-1);\n        } else {\n          nodeId = id;\n        }\n        break;\n      }\n    }\n    return nodeId;\n  };\n\n  /**\n   * Returns the position in the project for the branch node with the given id. Returns null if no node with id exists or node is not a branch node.\n   * @param id a node id\n   * @return string position of the given node id in the project\n   */\n  getBranchNodePositionById(id) {\n    const branches = this.getBranches();\n    let b = branches.length;\n\n    // TODO: should we localize this? should we support more than 26?\n    const integerToAlpha = function(int) {\n      const alphabet = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];\n      if (int > -1 && int < 26) {\n        return alphabet[int];\n      } else {\n        return int;\n      }\n    };\n\n    while (b--) {\n      const branch = branches[b];\n      const branchPaths = branch.branchPaths;\n      for (let p = 0; p < branchPaths.length; p++) {\n        const branchPath = branchPaths[p];\n        const nodeIndex = branchPath.indexOf(id);\n        if (nodeIndex > -1) {\n          const startPoint = branch.branchStartPoint;\n          const startPointPos = this.idToPosition[startPoint];\n          const branchPathPos = startPointPos + ' ' + integerToAlpha(p);\n          return branchPathPos + (nodeIndex+1);\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Recursively searches for the given node id from the point of the given node down and returns the path number (position)\n   * @param node a node to start searching down\n   * @param path the position of the given node\n   * @param id the node id to search for\n   * @return string path of the given node id in the project\n   */\n  getPathToNode(node, path, id) {\n    if (node.id === id) {\n      return path + '';\n    } else if (node.type === 'group') {\n      let num = 0;\n      const branches = this.getBranches();\n      for (let nodeId of node.ids) {\n        if (this.isNodeIdInABranch(branches, nodeId)) {\n          this.getBranchNodePositionById(nodeId);\n        } else {\n          ++num;\n          const pos = this.getPathToNode(this.getNodeById(nodeId), (path) + '.' + (num), id);\n          if (pos) {\n            return pos;\n          }\n        }\n      }\n    }\n  };\n\n  setIdToPosition(id, pos) {\n    if (id != null) {\n      this.idToPosition[id] = pos;\n    }\n  };\n\n  getNodePositionById(id) {\n    let position = null;\n    if (id != null) {\n      position = this.nodeIdToNumber[id];\n    }\n    return position;\n  };\n\n  getNodeIdByOrder(order) {\n    let id = null;\n    if (order != null) {\n      for (let [nodeId, value] of Object.entries(this.idToOrder)) {\n        if (value.order === order) {\n          id = nodeId;\n          break;\n        }\n      }\n    }\n    return id;\n  }\n\n  getNodeOrderById(id) {\n    let order = null;\n    if (id != null) {\n      order = this.idToOrder[id] ? this.idToOrder[id].order : null;\n    }\n    return order;\n  };\n\n  setIdToNode(id, element) {\n    if (id != null) {\n      this.idToNode[id] = element;\n    }\n  };\n\n  setIdToElement(id, element) {\n    if (id != null) {\n      this.idToElement[id] = element;\n    }\n  };\n\n  /**\n   * Replace relative asset paths with absolute paths\n   * e.g.\n   * assets/myimage.jpg\n   * will be replaced with\n   * http://wise.berkeley.edu/curriculum/123456/assets/myimage.jpg\n   * @param content a string or JSON object\n   * @return the same type of object that was passed in as the content\n   * but with relative asset paths replaced with absolute paths\n   */\n  injectAssetPaths(content) {\n    if (content != null) {\n      if (typeof content === 'object') {\n        let contentString = JSON.stringify(content);\n        if (contentString != null) {\n          // replace the relative asset paths with the absolute paths\n          contentString = this.replaceAssetPaths(contentString);\n          content = JSON.parse(contentString);\n        }\n      } else if (typeof content === 'string') {\n        // replace the relative asset paths with the absolute paths\n        content = this.replaceAssetPaths(content);\n      }\n    }\n    return content;\n  };\n\n  /**\n   * Replace the relative asset paths with absolute paths\n   * @param contentString the content string\n   * @return the content string with relative asset paths replaced\n   * with absolute asset paths\n   */\n  replaceAssetPaths(contentString) {\n    if (contentString != null) {\n      // get the content base url e.g. http://wise.berkeley.edu/curriculum/123456/\n      const contentBaseURL = this.ConfigService.getConfigParam('projectBaseURL');\n\n      // only look for string that starts with ' or \" and ends in png, jpg, jpeg, pdf, etc.\n      // the string we're looking for can't start with '/ and \"/.\n      // note that this also works for \\\"abc.png and \\'abc.png, where the quotes are escaped\n      contentString = contentString.replace(\n        new RegExp('(\\'|\\\"|\\\\\\\\\\'|\\\\\\\\\\\")[^:][^\\/]?[^\\/]?[a-zA-Z0-9@%&;\\\\._\\\\/\\\\s\\\\-]*[\\.](png|jpe?g|pdf|gif|mov|mp4|mp3|wav|swf|css|txt|json|xlsx?|doc|html.*?|js).*?(\\'|\\\"|\\\\\\\\\\'|\\\\\\\\\\\")', 'gi'),\n        (matchedString) => {\n          // once found, we prepend the contentBaseURL + \"assets/\" to the string within the quotes and keep everything else the same.\n          let delimiter = '';\n          let matchedStringWithoutQuotes = '';\n\n          if (matchedString.length > 2 && matchedString.substr(0,1) == '\\\\') {\n            // the string has escaped quotes for example \\\"hello.png\\\"\n\n            // get everything between the escaped quotes\n            matchedStringWithoutQuotes = matchedString.substr(2, matchedString.length - 4);\n\n            // get the delimiter which will be \\' or \\\"\n            delimiter = matchedString.substr(0,2);\n          } else {\n            // the string does not have escaped quotes for example \"hello.png\"\n\n            // get everything between the quotes\n            matchedStringWithoutQuotes = matchedString.substr(1, matchedString.length - 2);\n\n            // get the delimiter which will be ' or \"\n            delimiter = matchedString.substr(0,1);\n          }\n\n          if (matchedStringWithoutQuotes != null && matchedStringWithoutQuotes.length > 0 && matchedStringWithoutQuotes.charAt(0) == \"/\") {\n            /*\n             * the matched string starts with a \"/\" which means it's\n             * an absolute path and does not require path prepending\n             * so we will just return the original unmodified string\n             */\n            return delimiter + matchedStringWithoutQuotes + delimiter;\n          } else {\n            //const matchedStringWithoutFirstAndLastQuote = matchedString.substr(1, matchedString.length - 2);  // everything but the beginning and end quote (' or \")\n            // make a new string with the contentBaseURL + assets/ prepended to the path\n            return delimiter + contentBaseURL + \"assets/\" + matchedStringWithoutQuotes + delimiter;\n          }\n        }\n      );\n    }\n    return contentString;\n  };\n\n  /**\n   * Inject the ng-click attribute that will call the snipImage function\n   * @param content the content\n   * @returns the modified content\n   */\n  injectClickToSnipImage(content) {\n    if (content != null) {\n      if (typeof content === 'object') {\n        let contentString = JSON.stringify(content);\n        if (contentString != null) {\n          // replace the relative asset paths with the absolute paths\n          contentString = this.injectClickToSnipImageIntoContentString(contentString);\n\n          content = JSON.parse(contentString);\n        }\n      } else if (typeof content === 'string') {\n        // replace the relative asset paths with the absolute paths\n        content = this.injectClickToSnipImageIntoContentString(content);\n      }\n    }\n    return content;\n  }\n\n  /**\n   * Inject the ng-click attribute that will call the snipImage function\n   * @param contentString the content in string format\n   * @returns the modified content string\n   */\n  injectClickToSnipImageIntoContentString(contentString) {\n    if (contentString != null) {\n      // regex to match image elements\n      const imgMatcher = new RegExp('<img.*?src=\\\\\\\\?[\\'\"](.*?)\\\\\\\\?[\\'\"].*?>', 'gi');\n\n      // replace all instances that match\n      contentString = contentString.replace(imgMatcher,\n        (matchedString, matchGroup1) => {\n          /*\n           * insert the ng-click attribute\n           * Before: <img src=\"abc.png\"/>\n           * After: <img ng-click=\"vleController.snipImage($event)\" src=\"abc.png\" />\n           */\n          const newString = matchedString.replace('img', 'img ng-click=\\\\\\\"$emit(\\'snipImage\\', $event)\\\\\\\"');\n          return newString;\n        }\n      );\n    }\n    return contentString;\n  }\n\n  /**\n   * Returns the node specified by the nodeId\n   * @param nodeId get the node with this node id\n   * @param (optional) the project to retrieve the node from. this is used in\n   * the case when we want the node from another project such as when we are\n   * importing a step from another project\n   * Return null if nodeId param is null or the specified node does not exist in the project.\n   */\n  getNodeById(nodeId, project) {\n    if (project == null) {\n      // the project argument is null so we will get it from the current project\n      if (nodeId != null && this.idToNode[nodeId]) {\n        return this.idToNode[nodeId];\n      }\n    } else {\n      /*\n       * the project argument is not null so we will get the node from\n       * project that was passed in\n       */\n      for (let tempNode of project.nodes) {\n        if (tempNode != null && tempNode.id == nodeId) {\n          return tempNode;\n        }\n      }\n\n      for (let tempNode of project.inactiveNodes) {\n        if (tempNode != null && tempNode.id == nodeId) {\n          return tempNode;\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Returns the title of the node with the nodeId\n   * Return null if nodeId param is null or the specified node does not exist in the project.\n   */\n  getNodeTitleByNodeId(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      return node.title;\n    }\n    return null;\n  };\n\n  /**\n   * Get the node position and title\n   * @param nodeId the node id\n   * @returns the node position and title, e.g. \"1.1 Introduction\"\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const position = this.getNodePositionById(nodeId);\n      if (position != null) {\n        return position + ': ' + node.title;\n      } else {\n        return node.title;\n      }\n    }\n    return null;\n  };\n\n  getNodeIconByNodeId(nodeId) {\n    const node = this.getNodeById(nodeId);\n    let nodeIcon = null;\n    if (node != null) {\n      const nodeType = node.type;\n\n      // set defaults (TODO: get from configService?)\n      const defaultName = (nodeType === 'group') ? 'explore' : 'school';\n      nodeIcon = {\n        color: 'rgba(0,0,0,0.54)',\n        type: 'font',\n        fontSet: 'material-icons',\n        fontName: defaultName,\n        imgSrc: '',\n        imgAlt: 'node icon'\n      };\n\n      // TODO: check for different statuses\n      const icons = node.icons;\n      if (!!icons && !!icons.default) {\n        const icon = icons.default;\n        nodeIcon = $.extend(true, nodeIcon, icon);\n      }\n\n      // check for empty image source\n      if (!nodeIcon.imgSrc) {\n        // revert to font icon\n        nodeIcon.type = 'font';\n      }\n    }\n    return nodeIcon;\n  };\n\n  getParentGroup(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        // Check if the node is a child of an active group.\n        const groupNodes = this.getGroupNodes();\n        for (let groupNode of groupNodes) {\n          if (this.isNodeDirectChildOfGroup(node, groupNode)) {\n            return groupNode;\n          }\n        }\n\n        // Check if the node is a child of an inactive group.\n        const inactiveGroupNodes = this.getInactiveGroupNodes();\n        for (let inactiveGroupNode of inactiveGroupNodes) {\n          if (this.isNodeDirectChildOfGroup(node, inactiveGroupNode)) {\n            return inactiveGroupNode;\n          }\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the parent group id\n   * @param nodeId the parent group id\n   * @returns the parent group id\n   */\n  getParentGroupId(nodeId) {\n    if (nodeId != null) {\n      const parentGroup = this.getParentGroup(nodeId);\n      if (parentGroup != null) {\n        return parentGroup.id;\n      }\n    }\n    return null;\n  }\n\n  getNodeDepth(nodeId, val) {\n    if (nodeId != null) {\n      let depth = (typeof val === \"number\") ? val : 0;\n      const parent = this.getParentGroup(nodeId);\n      if (parent) {\n        depth = this.getNodeDepth(parent.id, depth + 1);\n      }\n      return depth;\n    }\n    return null;\n  };\n\n  getRootNode(nodeId) {\n    const parentGroup = this.getParentGroup(nodeId);\n    if (parentGroup == null) {\n      return this.getNodeById(nodeId);\n    } else {\n      return this.getRootNode(parentGroup.id);\n    }\n    return null;\n  };\n\n  isNodeDirectChildOfGroup(node, group) {\n    if (node != null && group != null) {\n      const nodeId = node.id;\n      const groupIds = group.ids;\n\n      if (groupIds != null && groupIds.indexOf(nodeId) != -1) {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  isNodeDescendentOfGroup(node, group) {\n    if (node != null && group != null) {\n      const descendents = this.getDescendentsOfGroup(group);\n      const nodeId = node.id;\n\n      if (descendents.indexOf(nodeId) != -1) {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  getDescendentsOfGroup(group) {\n    let descendents = [];\n    if (group != null) {\n      const childIds = group.ids;\n      if (childIds != null) {\n        descendents = childIds;\n        for (let childId of childIds) {\n          const node = this.getNodeById(childId);\n          if (node != null) {\n            const childDescendents = this.getDescendentsOfGroup(node);\n            descendents = descendents.concat(childDescendents);\n          }\n        }\n      }\n    }\n    return descendents;\n  };\n\n  isStartNode(node) {\n    let result = false;\n    if (node != null) {\n      const nodeId = node.id;\n      const projectStartId = this.getStartNodeId();\n      if (nodeId === projectStartId) {\n        result = true;\n      }\n\n      const groups = this.getGroups();\n      for (let group of groups) {\n        if (group != null) {\n          const groupStartId = group.startId;\n          if (nodeId === groupStartId) {\n            result = true;\n            break;\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Returns the Project's start node id, or null if it's not defined in the project\n   */\n  getStartNodeId() {\n    const project = this.project;\n    if (project != null) {\n      return project.startNodeId;\n    }\n    return null;\n  };\n\n  /**\n   * Set the start node id\n   * @param nodeId the new start node id\n   */\n  setStartNodeId(nodeId) {\n    if (nodeId != null) {\n      const project = this.project;\n      if (project != null) {\n        project.startNodeId = nodeId;\n      }\n    }\n  }\n\n  /**\n   * Get the start group id\n   * @return the start group id\n   */\n  getStartGroupId() {\n    const project = this.project;\n    if (project != null) {\n      return project.startGroupId;\n    }\n    return null;\n  }\n\n  /**\n   * Check if the given node id is the start node id\n   * @return whether the node id is the start node id\n   */\n  isStartNodeId(nodeId) {\n    const project = this.project;\n    if (project != null) {\n      const startNodeId = project.startNodeId;\n      if (nodeId === startNodeId) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  getConstraintsForNode(node) {\n    const constraints = [];\n    const allConstraints = this.activeConstraints;\n    for (let constraint of allConstraints) {\n      if (this.isNodeAffectedByConstraint(node, constraint)) {\n        constraints.push(constraint);\n      }\n    }\n    return constraints;\n  };\n\n  /**\n   * Get the constraints authored on the node.\n   * @param nodeId The node id of the node.\n   * @return An array of constraint JSON objects.\n   */\n  getConstraintsOnNode(nodeId) {\n    let node = this.getNodeById(nodeId);\n    return node.constraints;\n  }\n\n  /**\n   * Check if a node has constraints.\n   * @param nodeId The node id of the node.\n   * @return Whether the node has constraints authored on it.\n   */\n  nodeHasConstraint(nodeId) {\n    let constraints = this.getConstraintsOnNode(nodeId);\n    if (constraints.length > 0) {\n      return true;\n    }\n    return false;\n  }\n\n  /**\n   * Order the constraints so that they show up in the same order as in the\n   * project.\n   * @param constraints An array of constraint objects.\n   * @return An array of ordered constraints.\n   */\n  orderConstraints(constraints) {\n    let orderedNodeIds = this.getFlattenedProjectAsNodeIds();\n    return constraints.sort(this.constraintsComparatorGenerator(orderedNodeIds));\n  }\n\n  /**\n   * Create the constraints comparator function that is used for sorting an\n   * array of constraint objects.\n   * @param orderedNodeIds An array of node ids in the order in which they\n   * show up in the project.\n   * @return A comparator that orders constraint objects in the order in which\n   * the target ids show up in the project.\n   */\n  constraintsComparatorGenerator(orderedNodeIds) {\n    return function(constraintA, constraintB) {\n      let constraintAIndex = orderedNodeIds.indexOf(constraintA.targetId);\n      let constraintBIndex = orderedNodeIds.indexOf(constraintB.targetId);\n      if (constraintAIndex < constraintBIndex) {\n        return -1;\n      } else if (constraintAIndex > constraintBIndex) {\n        return 1;\n      }\n      return 0;\n    }\n  }\n\n  /**\n   * Check if a node is affected by the constraint\n   * @param node check if the node is affected\n   * @param constraint the constraint that might affect the node\n   * @returns whether the node is affected by the constraint\n   */\n  isNodeAffectedByConstraint(node, constraint) {\n    let result = false;\n    if (node != null && constraint != null) {\n      // check if we have previously calculated the result before\n      const rememberedResult = this.getIsNodeAffectedByConstraintResult(node.id, constraint.id, result);\n      if (rememberedResult != null) {\n        // we have calculated the result before\n\n        // use the remembered result\n        result = rememberedResult;\n      } else {\n        // we have not calculated the result before\n        const nodeId = node.id;\n        const targetId = constraint.targetId;\n        const action = constraint.action;\n\n        if (action === 'makeAllNodesAfterThisNotVisible') {\n          if (this.isNodeIdAfter(targetId, node.id)) {\n            result = true;\n          }\n        } else if (action === 'makeAllNodesAfterThisNotVisitable') {\n          if (this.isNodeIdAfter(targetId, node.id)) {\n            result = true;\n          }\n        } else {\n          const targetNode = this.getNodeById(targetId);\n          if (targetNode != null) {\n            const nodeType = targetNode.type;\n            if (nodeType === 'node') {\n              if (nodeId === targetId) {\n                result = true;\n              }\n            } else if (nodeType === 'group') {\n              if (nodeId === targetId) {\n                result = true;\n              }\n              if (this.isNodeDescendentOfGroup(node, targetNode)) {\n                result = true;\n              }\n            }\n          }\n        }\n\n        // remember the result so we can look it up in the future\n        this.setIsNodeAffectedByConstraintResult(node.id, constraint.id, result);\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Check if a node id comes after another node id in the project\n   * @param nodeIdBefore the node id before\n   * @param nodeIdAfter the node id after\n   */\n  isNodeIdAfter(nodeIdBefore, nodeIdAfter) {\n    let result = false;\n    if (nodeIdBefore != null && nodeIdAfter != null) {\n      if (this.isApplicationNode(nodeIdBefore)) {\n        // the node id before is a step\n\n        // get all the paths from the beforeNodeId to the end of the project\n        const pathsToEnd = this.getAllPaths([], nodeIdBefore, true);\n\n        if (pathsToEnd != null) {\n          for (let pathToEnd of pathsToEnd) {\n            if (pathToEnd != null) {\n              /*\n               * remove the first node id and its parent id because\n               * we will check the remaining node ids in the array\n               * for the nodeIdAfter\n               */\n\n              // get the index of the node id before\n              const index = pathToEnd.indexOf(nodeIdBefore);\n\n              if (index != -1) {\n                // remove the node id before\n                pathToEnd.splice(index, 1);\n              }\n\n              // get the parent group of the node id before\n              const parentGroup = this.getParentGroup(nodeIdBefore);\n\n              if (parentGroup != null) {\n                // remove the parent group of the node id before\n                const parentGroupId = parentGroup.id;\n                const parentGroupIndex = pathToEnd.indexOf(parentGroupId);\n                if (parentGroupIndex != -1) {\n                  pathToEnd.splice(parentGroupIndex, 1);\n                }\n              }\n\n              if (pathToEnd.indexOf(nodeIdAfter) != -1) {\n                // we have found the nodeIdAfter in the path to the end of the project\n                result = true;\n              }\n            }\n          }\n        }\n      } else {\n        // the node id before is an activity\n\n        const group = this.getNodeById(nodeIdBefore);\n        if (group != null) {\n          const transitions = this.getTransitionsByFromNodeId(nodeIdBefore);\n          if (transitions != null) {\n            for (let transition of transitions) {\n              if (transition != null) {\n                const toNodeId = transition.to;\n\n                // get the paths between to toNodeId and the end of the project\n                const pathsToEnd = this.getAllPaths([], toNodeId, true);\n\n                for (let pathToEnd of pathsToEnd) {\n                  if (pathToEnd != null) {\n                    if (pathToEnd.indexOf(nodeIdAfter) != -1) {\n                      // we have found the nodeIdAfter in the path to the end of the project\n                      result = true;\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Get the transition logic for a node\n   * @param fromNodeId the from node id\n   * @returns the transition logic object\n   */\n  getTransitionLogicByFromNodeId(fromNodeId) {\n    if (fromNodeId != null) {\n      // get the node\n      const node = this.getNodeById(fromNodeId);\n\n      if (node != null) {\n        // get the transition logic\n        return node.transitionLogic;\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the transitions for a node\n   * @param fromNodeId the node to get transitions from\n   * @returns an array of transitions\n   */\n  getTransitionsByFromNodeId(fromNodeId) {\n    if (fromNodeId != null) {\n      // get the transition logic\n      const transitionLogic = this.getTransitionLogicByFromNodeId(fromNodeId);\n\n      if (transitionLogic != null) {\n        // get the transitions\n        return transitionLogic.transitions;\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get nodes that have a transition to the given node id\n   * @param toNodeId the node id\n   * @returns an array of node objects that transition to the\n   * given node id\n   */\n  getNodesByToNodeId(toNodeId) {\n    const nodesByToNodeId = [];\n    if (toNodeId != null) {\n      const nodes = this.project.nodes;\n      for (let node of nodes) {\n        if (this.nodeHasTransitionToNodeId(node, toNodeId)) {\n          nodesByToNodeId.push(node);\n        }\n      }\n      const inactiveNodes = this.getInactiveNodes();\n      for (let inactiveNode of inactiveNodes) {\n        if (this.nodeHasTransitionToNodeId(inactiveNode, toNodeId)) {\n          nodesByToNodeId.push(inactiveNode);\n        }\n      }\n    }\n    return nodesByToNodeId;\n  };\n\n  /**\n   * Check if a node has a transition to the given nodeId.\n   * @param node The node to check.\n   * @param toNodeId We are looking for a transition to this node id.\n   * @returns Whether the node has a transition to the given nodeId.\n   */\n  nodeHasTransitionToNodeId(node, toNodeId) {\n    const transitionLogic = node.transitionLogic;\n    if (transitionLogic != null) {\n      const transitions = transitionLogic.transitions;\n      if (transitions != null) {\n        for (let transition of transitions) {\n          if (transition != null) {\n            if (toNodeId === transition.to) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get node ids of all the nodes that have a to transition to the given node id\n   * @param toNodeId\n   * @returns all the node ids that have a transition to the given node id\n   */\n  getNodeIdsByToNodeId(toNodeId) {\n    const nodeIds = [];\n    const nodes = this.getNodesByToNodeId(toNodeId);\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          nodeIds.push(node.id);\n        }\n      }\n    }\n    return nodeIds;\n  }\n\n  /**\n   * Get the group nodes that point to a given node id\n   * @param toNodeId\n   */\n  getGroupNodesByToNodeId(toNodeId) {\n    const groupsThatPointToNodeId = [];\n    if (toNodeId != null) {\n      const groups = this.getGroups();\n      for (let group of groups) {\n        if (group != null) {\n          if (this.hasTransitionTo(group, toNodeId)) {\n            groupsThatPointToNodeId.push(group);\n          }\n        }\n      }\n    }\n    return groupsThatPointToNodeId;\n  }\n\n  /**\n   * Check if a node has a transition to a node id\n   * @param node check if this node has a transition to the node id\n   * @param toNodeId we will look for a transition to this node id\n   * @returns whether the node has a transition to the node id\n   */\n  hasTransitionTo(node, toNodeId) {\n    if (node != null && toNodeId != null) {\n      const transitionLogic = node.transitionLogic;\n      if (transitionLogic != null) {\n        const transitions = transitionLogic.transitions;\n        if (transitions != null) {\n          for (let transition of transitions) {\n            if (toNodeId === transition.to) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the transitions that traverse from the fromNodeId and to the toNodeId\n   * @param fromNodeId the from node id\n   * @param toNodeId the to node id\n   * @returns an array of transitions that traverse from the fromNodeId and\n   * to the toNodeId\n   */\n  getTransitionsByFromAndToNodeId(fromNodeId, toNodeId) {\n    const transitionsResults = [];\n    if (fromNodeId != null && toNodeId != null) {\n      const node = this.getNodeById(fromNodeId);\n      if (node != null) {\n        const transitionLogic = node.transitionLogic;\n        if (transitionLogic != null) {\n          const transitions = transitionLogic.transitions;\n          if (transitions != null) {\n            for (let transition of transitions) {\n              if (transition != null) {\n                const to = transition.to;\n                if (toNodeId === to) {\n                  transitionsResults.push(transition);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return transitionsResults;\n  };\n\n  /**\n   * Retrieves the project JSON from Config.projectURL and returns it.\n   * If Config.projectURL is undefined, returns null.\n   */\n  retrieveProject() {\n    let projectURL = this.ConfigService.getConfigParam('projectURL');\n    if (projectURL == null) {\n      return null;\n    } else {\n      /*\n       * add a unique GET parameter value so that it always retrieves the\n       * latest version of the project file from the server and never\n       * retrieves the project from cache.\n       */\n      projectURL += '?noCache=' + (new Date()).getTime();\n    }\n\n    return this.$http.get(projectURL).then((result) => {\n      const projectJSON = result.data;\n      this.setProject(projectJSON);\n      return projectJSON;\n    });\n  };\n\n  /**\n   * Retrieve the project JSON\n   * @param projectId retrieve the project JSON with this id\n   * @return a promise to return the project JSON\n   */\n  retrieveProjectById(projectId) {\n    if (projectId != null) {\n      // get the config URL for the project\n      const configURL = window.configURL + '/' + projectId;\n\n      // get the config for the project\n      return this.$http.get(configURL).then((result) => {\n        const configJSON = result.data;\n\n        if (configJSON != null) {\n          // get the project URL and preview project URL\n          const projectURL = configJSON.projectURL;\n          const previewProjectURL = configJSON.previewProjectURL;\n\n          if (projectURL != null) {\n            // get the project JSON\n            return this.$http.get(projectURL).then((result) => {\n              const projectJSON = result.data;\n\n              /*\n               * set the preview project URL into the project JSON\n               * so that we easily obtain the preview project URL\n               * later\n               */\n              projectJSON.previewProjectURL = previewProjectURL;\n\n              return projectJSON;\n            });\n          }\n        }\n      });\n    }\n  }\n\n  /**\n   * Saves the project to Config.saveProjectURL and returns commit history promise.\n   * if Config.saveProjectURL or Config.projectId are undefined, does not save and returns null\n   */\n  saveProject(commitMessage = \"\") {\n    this.$rootScope.$broadcast('savingProject');\n    // perform any cleanup before saving the project\n    this.cleanupBeforeSave();\n\n    const projectId = this.ConfigService.getProjectId();\n    const saveProjectURL = this.ConfigService.getConfigParam('saveProjectURL');\n    if (projectId == null || saveProjectURL == null) {\n      return null;\n    }\n\n    // Get the project from this service\n    const projectJSONString = angular.toJson(this.project, 4);\n\n    const httpParams = {};\n    httpParams.method = 'POST';\n    httpParams.url = saveProjectURL;\n    httpParams.headers = {'Content-Type': 'application/x-www-form-urlencoded'};\n\n    const params = {};\n    params.projectId = projectId;\n    params.commitMessage = commitMessage;\n    params.projectJSONString = projectJSONString;\n    httpParams.data = $.param(params);\n\n    return this.$http(httpParams).then((result) => {\n      const commitHistory = result.data;\n      this.$rootScope.$broadcast('projectSaved');\n      return commitHistory;\n    });\n  };\n\n  /**\n   * Perform any necessary cleanup before we save the project.\n   * For example we need to remove the checked field in the inactive node\n   * objects.\n   */\n  cleanupBeforeSave() {\n    let activeNodes = this.getActiveNodes();\n    for (let activeNode of activeNodes) {\n      this.cleanupNode(activeNode);\n    }\n\n    let inactiveNodes = this.getInactiveNodes();\n    for (let inactiveNode of inactiveNodes) {\n      this.cleanupNode(inactiveNode);\n    }\n  }\n\n  /**\n   * Remove any fields that are used temporarily for display purposes.\n   * @param node The node object.\n   */\n  cleanupNode(node) {\n    /*\n     * Remove fields that are added when the project is loaded in the authoring\n     * tool and grading tool.\n     */\n    delete node.checked;\n    delete node.hasWork;\n    delete node.hasAlert;\n    delete node.hasNewAlert;\n    delete node.isVisible;\n    delete node.completionStatus;\n    delete node.score;\n    delete node.hasScore;\n    delete node.maxScore;\n    delete node.hasMaxScore;\n    delete node.scorePct;\n    delete node.order;\n    delete node.show;\n\n    let components = node.components;\n    // activity nodes do not have components but step nodes do have components\n    if (components != null) {\n      for (let component of components) {\n        this.cleanupComponent(component);\n      }\n    }\n  }\n\n  /**\n   * Remove any fields that are used temporarily for display purposes.\n   * @param component The component object.\n   */\n  cleanupComponent(component) {\n    /*\n     * Remove fields that are added when the project is loaded in the authoring\n     * tool and grading tool.\n     */\n    delete component.checked;\n    delete component.hasWork;\n  }\n\n  /**\n   * Returns the theme path for the current project\n   */\n  getThemePath() {\n    let wiseBaseURL = this.ConfigService.getWISEBaseURL();\n    let project = this.project;\n    if (project && project.theme) {\n      // TODO: check if this is a valid theme (using ConfigService) rather than just truthy\n      return wiseBaseURL + '/wise5/themes/' + project.theme;\n    } else {\n      // TODO: get default theme name from ConfigService\n      return wiseBaseURL + '/wise5/themes/default';\n    }\n  };\n\n  /**\n   * Returns the theme settings for the current project\n   */\n  getThemeSettings() {\n    let themeSettings = {};\n    let project = this.project;\n    if (project && project.themeSettings) {\n      if (project.theme) {\n        // TODO: check if this is a valid theme (using ConfigService) rather than just truthy\n        themeSettings = project.themeSettings[project.theme];\n      } else {\n        // TODO: get default theme name from ConfigService\n        themeSettings = project.themeSettings[\"default\"];\n      }\n    }\n    return themeSettings ? themeSettings : {};\n  };\n\n  /**\n   * Flatten the project to obtain a list of node ids\n   * @param recalculate Whether to force recalculating the flattened node ids.\n   * @return An array of the flattened node ids in the project.\n   */\n  getFlattenedProjectAsNodeIds(recalculate) {\n    if (!recalculate && this.flattenedProjectAsNodeIds != null) {\n      // use the previously calculated flattened node ids\n      return this.flattenedProjectAsNodeIds;\n    }\n\n    // get the start node id\n    const startNodeId = this.getStartNodeId();\n\n    /*\n     * an array to keep track of the node ids in the path that\n     * we are currently on as we traverse the nodes in the project\n     * depth first\n     */\n    const pathsSoFar = [];\n\n    // get all the possible paths through the project\n    const allPaths = this.getAllPaths(pathsSoFar, startNodeId);\n\n    // consolidate all the paths to create a single list of node ids\n    const nodeIds = this.consolidatePaths(allPaths);\n\n    /*\n     * Remember the flattened node ids so that we don't have to calculate\n     * it again.\n     */\n    this.flattenedProjectAsNodeIds = nodeIds;\n\n    return nodeIds;\n  };\n\n  /**\n   * Get all the possible paths through the project. This function\n   * recursively calls itself to traverse the project depth first.\n   * @param pathSoFar the node ids in the path so far. the node ids\n   * in this array are referenced to make sure we don't loop back\n   * on the path.\n   * @param nodeId the node id we want to get the paths from\n   * @param includeGroups whether to include the group node ids in the paths\n   * @return an array of paths. each path is an array of node ids.\n   */\n  getAllPaths(pathSoFar, nodeId, includeGroups) {\n    const allPaths = [];\n    if (nodeId != null) {\n      if (this.isApplicationNode(nodeId)) {\n        const path = [];\n        const transitions = this.getTransitionsByFromNodeId(nodeId);\n        if (transitions != null) {\n          if (includeGroups) {\n            const parentGroup = this.getParentGroup(nodeId);\n            if (parentGroup != null) {\n              const parentGroupId = parentGroup.id;\n              if (parentGroupId != null && pathSoFar.indexOf(parentGroupId) == -1) {\n                pathSoFar.push(parentGroup.id);\n              }\n            }\n          }\n\n          /*\n           * add the node id to the path so far so we can later check\n           * which nodes are already in the path to prevent looping\n           * back in the path\n           */\n          pathSoFar.push(nodeId);\n\n          if (transitions.length === 0) {\n            /*\n             * there are no transitions from the node id so we will\n             * look for a transition in the parent group\n             */\n\n            let addedCurrentNodeId = false;\n            const parentGroupId = this.getParentGroupId(nodeId);\n            const parentGroupTransitions = this.getTransitionsByFromNodeId(parentGroupId);\n\n            if (parentGroupTransitions != null) {\n              for (let parentGroupTransition of parentGroupTransitions) {\n                if (parentGroupTransition != null) {\n                  const toNodeId = parentGroupTransition.to;\n                  if (pathSoFar.indexOf(toNodeId) == -1) {\n                    /*\n                     * recursively get the paths by getting all\n                     * the paths for the to node\n                     */\n                    const allPathsFromToNode = this.getAllPaths(pathSoFar, toNodeId, includeGroups);\n\n                    for (let tempPath of allPathsFromToNode) {\n                      tempPath.unshift(nodeId);\n                      allPaths.push(tempPath);\n                      addedCurrentNodeId = true;\n                    }\n                  }\n                }\n              }\n            }\n\n            if (!addedCurrentNodeId) {\n              /*\n               * if the parent group doesn't have any transitions we will\n               * need to add the current node id to the path\n               */\n              path.push(nodeId);\n              allPaths.push(path);\n            }\n          } else {\n            // there are transitions from this node id\n\n            for (let transition of transitions) {\n              if (transition != null) {\n                const toNodeId = transition.to;\n                if (toNodeId != null && pathSoFar.indexOf(toNodeId) == -1) {\n                  // we have not found the to node in the path yet so we can traverse it\n\n                  /*\n                   * recursively get the paths by getting all\n                   * the paths from the to node\n                   */\n                  const allPathsFromToNode = this.getAllPaths(pathSoFar, toNodeId, includeGroups);\n\n                  if (allPathsFromToNode != null) {\n                    for (let tempPath of allPathsFromToNode) {\n                      if (includeGroups) {\n                        // we need to add the group id to the path\n\n                        if (tempPath.length > 0) {\n                          const firstNodeId = tempPath[0];\n                          const firstParentGroupId = this.getParentGroupId(firstNodeId);\n                          const parentGroupId = this.getParentGroupId(nodeId);\n                          if (parentGroupId != firstParentGroupId) {\n                            /*\n                             * the parent ids are different which means this is a boundary\n                             * between two groups. for example if the project looked like\n                             * group1>node1>node2>group2>node3>node4\n                             * and the current node was node2 then the first node in the\n                             * path would be node3 which means we would need to place\n                             * group2 on the path before node3\n                             */\n                            tempPath.unshift(firstParentGroupId);\n                          }\n                        }\n                      }\n\n                      tempPath.unshift(nodeId);\n                      allPaths.push(tempPath);\n                    }\n                  }\n                } else {\n                  /*\n                   * the node is already in the path so far which means\n                   * the transition is looping back to a previous node.\n                   * we do not want to take this transition because\n                   * it will lead to an infinite loop. we will just\n                   * add the current node id to the path and not take\n                   * the transition which essentially ends the path.\n                   */\n                  path.push(nodeId);\n                  allPaths.push(path);\n                }\n              }\n            }\n          }\n\n          if (pathSoFar.length > 0) {\n            const lastNodeId = pathSoFar[pathSoFar.length - 1];\n            if (this.isGroupNode(lastNodeId)) {\n              /*\n               * the last node id is a group id so we will remove it\n               * since we are moving back up the path as we traverse\n               * the nodes depth first\n               */\n              pathSoFar.pop();\n            }\n          }\n\n          /*\n           * remove the latest node id (this will be a step node id)\n           * since we are moving back up the path as we traverse the\n           * nodes depth first\n           */\n          pathSoFar.pop();\n\n          if (includeGroups) {\n            if (pathSoFar.length == 1) {\n              /*\n               * we are including groups and we have traversed\n               * back up to the start node id for the project.\n               * the only node id left in pathSoFar is now the\n               * parent group of the start node id. we will\n               * now add this parent group of the start node id\n               * to all of the paths\n               */\n\n              for (let path of allPaths) {\n                if (path != null) {\n                  /*\n                   * prepend the parent group of the start node id\n                   * to the path\n                   */\n                  path.unshift(pathSoFar[0]);\n                }\n              }\n\n              /*\n               * remove the parent group of the start node id from\n               * pathSoFar which leaves us with an empty pathSoFar\n               * which means we are completely done with\n               * calculating all the paths\n               */\n              pathSoFar.pop();\n            }\n          }\n        }\n      } else if (this.isGroupNode(nodeId)) {\n\n        /*\n         * add the node id to the path so far so we can later check\n         * which nodes are already in the path to prevent looping\n         * back in the path\n         */\n        pathSoFar.push(nodeId);\n\n        const groupNode = this.getNodeById(nodeId);\n        if (groupNode != null) {\n          const startId = groupNode.startId;\n          if (startId == null || startId == \"\") {\n            // there is no start id so we will take the transition from the group\n            // TODO? there is no start id so we will loop through all the child nodes\n\n            const transitions = this.getTransitionsByFromNodeId(groupNode.id);\n            if (transitions != null && transitions.length > 0) {\n              for (let transition of transitions) {\n                if (transition != null) {\n                  const toNodeId = transition.to;\n\n                  const allPathsFromToNode = this.getAllPaths(pathSoFar, toNodeId, includeGroups);\n\n                  if (allPathsFromToNode != null) {\n                    for (let tempPath of allPathsFromToNode) {\n                      tempPath.unshift(nodeId);\n                      allPaths.push(tempPath);\n                    }\n                  }\n                }\n              }\n            } else {\n              /*\n               * this activity does not have any transitions so\n               * we have reached the end of this path\n               */\n\n              const tempPath = [];\n              tempPath.unshift(nodeId);\n              allPaths.push(tempPath);\n            }\n          } else {\n            // there is a start id so we will traverse it\n\n            const allPathsFromToNode = this.getAllPaths(pathSoFar, startId, includeGroups);\n\n            if (allPathsFromToNode != null) {\n              for (let tempPath of allPathsFromToNode) {\n                tempPath.unshift(nodeId);\n                allPaths.push(tempPath);\n              }\n            }\n          }\n        }\n\n        /*\n         * remove the latest node id since we are moving back\n         * up the path as we traverse the nodes depth first\n         */\n        pathSoFar.pop();\n      }\n    }\n    return allPaths;\n  };\n\n  /**\n   * Consolidate all the paths into a linear list of node ids\n   * @param paths an array of paths. each path is an array of node ids.\n   * @return an array of node ids that have been properly ordered\n   */\n  consolidatePaths(paths) {\n    let consolidatedPath = [];\n\n    if (paths != null) {\n      /*\n       * continue until all the paths are empty. as we consolidate\n       * node ids, we will remove them from the paths. once all the\n       * paths are empty we will be done consolidating the paths.\n       */\n      while(!this.arePathsEmpty(paths)) {\n        // start with the first path\n        const currentPath = this.getNonEmptyPathIndex(paths);\n\n        // get the first node id in the current path\n        const nodeId = this.getFirstNodeIdInPathAtIndex(paths, currentPath);\n        if (this.areFirstNodeIdsInPathsTheSame(paths)) {\n          // the first node ids in all the paths are the same\n\n          // remove the node id from all the paths\n          this.removeNodeIdFromPaths(nodeId, paths);\n\n          // add the node id to our consolidated path\n          consolidatedPath.push(nodeId);\n        } else {\n          // not all the top node ids are the same which means we have branched\n\n          // get all the paths that contain the node id\n          const pathsThatContainNodeId = this.getPathsThatContainNodeId(nodeId, paths);\n\n          if (pathsThatContainNodeId != null) {\n            if (pathsThatContainNodeId.length === 1) {\n              // only the current path we are on has the node id\n\n              // remove the node id from the path\n              this.removeNodeIdFromPath(nodeId, paths, currentPath);\n\n              // add the node id to our consolidated path\n              consolidatedPath.push(nodeId);\n            } else {\n              // there are multiple paths that have this node id\n\n              // consume all the node ids up to the given node id\n              const consumedPath = this.consumePathsUntilNodeId(paths, nodeId);\n\n              // remove the node id from the paths\n              this.removeNodeIdFromPaths(nodeId, paths);\n\n              // add the node id to the end of the consumed path\n              consumedPath.push(nodeId);\n\n              // add the consumed path to our consolidated path\n              consolidatedPath = consolidatedPath.concat(consumedPath);\n            }\n          }\n        }\n      }\n    }\n    return consolidatedPath;\n  };\n\n  /**\n   * Consume the node ids in the paths until we get to the given node id\n   * @param paths the paths to consume\n   * @param nodeId the node id to stop consuming at\n   * @return an array of node ids that we have consumed\n   */\n  consumePathsUntilNodeId(paths, nodeId) {\n    let consumedNodeIds = [];\n\n    if (paths != null && nodeId != null) {\n      for (let p = 0; p < paths.length; p++) {\n        const path = paths[p];\n\n        // check if the path contains the node id to stop consuming at\n        if (path != null && path.indexOf(nodeId) != -1) {\n          /*\n           * the path does contain the node id to stop consuming at\n           * so we will consume the node ids in this path until\n           * we get to the given node id to stop consuming at\n           */\n\n          for (let x = 0; x < path.length; x++) {\n            const tempNodeId = path[x];\n\n            if (nodeId === tempNodeId) {\n              /*\n               * the node id is the same as the one we need to\n               * stop consuming at so we will stop looking\n               * at this path\n               */\n              break;\n            } else {\n              /*\n               * the node id is not the one that we need to stop consuming at\n               * so we will consume it\n               */\n\n              // get all the paths that contain the node id\n              const pathsThatContainNodeId = this.getPathsThatContainNodeId(tempNodeId, paths);\n\n              if (pathsThatContainNodeId.length === 1) {\n                // there is only one path with this node id\n\n                // remove the node id from the path\n                this.removeNodeIdFromPath(tempNodeId, paths, p);\n\n                // move the counter back one since we have just removed a node id\n                x--;\n\n                // add the node id to the consumed node ids array\n                consumedNodeIds.push(tempNodeId);\n              } else {\n                // there are multiple paths with this node id\n\n                // tempNodeId must come before nodeId\n\n                const pathsToConsume = [];\n\n                for (let pathThatContainsNodeId of pathsThatContainNodeId) {\n                  // get the index of the node id we want to remove\n                  const tempNodeIdIndex = pathThatContainsNodeId.indexOf(tempNodeId);\n\n                  // get the index of the node id we want to stop consuming at\n                  const nodeIdIndex = pathThatContainsNodeId.indexOf(nodeId);\n\n                  /*\n                   * check if the node id we want to remove comes before\n                   * the node id we want to stop consuming at. we need to\n                   * do this to prevent an infinite loop. an example of\n                   * when this can happen is if there are two paths\n                   *\n                   * path1 = 1, 2, 3, 4, 5\n                   * path2 = 1, 2, 4, 3, 5\n                   *\n                   * as we consume path1 we will need to consume 3. in order to\n                   * consume 3, we must consume consume up to 3 in path2.\n                   * in order to consume up to 3 in path2 we must consume 4.\n                   * in order to consume 4, we must consume everything before\n                   * 4 in path1. everything before 4 in path1 is 1, 2, 3.\n                   * this means we need to consume 3 which brings us back up\n                   * to the top of this paragraph creating an infinite loop.\n                   *\n                   * this check below will prevent infinite loops by only\n                   * adding paths that have the tempNodeId come before the\n                   * nodeId to stop consuming at.\n                   */\n                  if (tempNodeIdIndex < nodeIdIndex) {\n                    pathsToConsume.push(pathThatContainsNodeId);\n                  }\n                }\n\n                /*\n                 * take the paths that contain the given node id and consume\n                 * the paths until the given node id\n                 */\n                const tempConsumedNodeIds = this.consumePathsUntilNodeId(pathsToConsume, tempNodeId);\n\n                // remove the node id from the paths that contain it\n                this.removeNodeIdFromPaths(tempNodeId, pathsThatContainNodeId);\n\n                // add the temp consumed node ids to our consumed node ids array\n                consumedNodeIds = consumedNodeIds.concat(tempConsumedNodeIds);\n\n                // move the counter back one since we have just removed a node id\n                x--;\n\n                // add the node id to the consumed node ids array\n                consumedNodeIds.push(tempNodeId);\n              }\n            }\n          }\n        }\n      }\n    }\n    return consumedNodeIds;\n  };\n\n  /**\n   * Get the path at the given index and get the first node id in\n   * the path\n   * @param paths an array of paths. each path is an array of node ids\n   * @param index the index of the path we want\n   * @return the first node in the given path\n   */\n  getFirstNodeIdInPathAtIndex(paths, index) {\n    let nodeId = null;\n    if (paths != null && index != null) {\n      const path = paths[index];\n      if (path != null && path.length > 0) {\n        nodeId = path[0];\n      }\n    }\n    return nodeId;\n  };\n\n  /**\n   * Remove the node ifrom the paths\n   * @param nodeId the node id to remove\n   * @param paths an array of paths. each path is an array of node ids\n   */\n  removeNodeIdFromPaths(nodeId, paths) {\n    if (nodeId != null && paths != null) {\n      for (let path of paths) {\n        for (let x = 0; x < path.length; x++) {\n          const tempNodeId = path[x];\n\n          /*\n           * check if the node id matches the one we are looking\n           * for\n           */\n          if (nodeId === tempNodeId) {\n            /*\n             * we have found the node id we are looking for so\n             * we will remove it from the path\n             */\n            path.splice(x, 1);\n\n            /*\n             * move the counter back since we just removed a\n             * node id. we will continue searching this path\n             * for the node id in case the path contains it\n             * multiple times.\n             */\n            x--;\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Remove the node id from the path\n   * @param nodeId the node id to remove\n   * @param paths an array of paths. each path is an array of node ids\n   * @param pathIndex the path to remove from\n   */\n  removeNodeIdFromPath(nodeId, paths, pathIndex) {\n    if (nodeId != null && paths != null && pathIndex != null) {\n      const path = paths[pathIndex];\n      if (path != null) {\n        for (let x = 0; x < path.length; x++) {\n          const tempNodeId = path[x];\n\n          /*\n           * check if the node id matches the one we are looking\n           * for\n           */\n          if (nodeId === tempNodeId) {\n            /*\n             * we have found the node id we are looking for so\n             * we will remove it from the path\n             */\n            path.splice(x, 1);\n\n            /*\n             * move the counter back since we just removed a\n             * node id. we will continue searching this path\n             * for the node id in case the path contains it\n             * multiple times.\n             */\n            x--;\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Check if the first node ids in the paths are the same\n   * @param paths an array of paths. each path is an array of node ids\n   * @return whether all the paths have the same first node id\n   */\n  areFirstNodeIdsInPathsTheSame(paths) {\n    let result = true;\n    let nodeId = null;\n    if (paths != null) {\n      for (let path of paths) {\n        const tempNodeId = path[0];\n        if (nodeId == null) {\n          /*\n           * this is the first path we have looked at so we will\n           * remember the node id\n           */\n          nodeId = tempNodeId;\n        } else if (nodeId != tempNodeId) {\n          /*\n           * the node id does not match the first node id from a\n           * previous path so the paths do not all have the same\n           * first node id\n           */\n          result = false;\n          break;\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Check if all the paths are empty\n   * @param paths an array of paths. each path is an array of node ids\n   * @return whether all the paths are empty\n   */\n  arePathsEmpty(paths) {\n    if (paths != null) {\n      for (let path of paths) {\n        if (path != null) {\n          if (path.length !== 0) {\n            return false;\n          }\n        }\n      }\n    }\n    return true;\n  };\n\n  /**\n   * Get the paths that contain the node id\n   * @param nodeId the node id we are looking for\n   * @param paths an array of paths. each path is an array of node ids\n   * @return an array of paths that contain the given node id\n   */\n  getPathsThatContainNodeId(nodeId, paths) {\n    const pathsThatContainNodeId = [];\n    if (nodeId != null && paths != null) {\n      for (let path of paths) {\n        // check if the path contains the node id\n        if (path.indexOf(nodeId) != -1) {\n          /*\n           * add the path to the array of paths that contain\n           * the node id\n           */\n          pathsThatContainNodeId.push(path);\n        }\n      }\n    }\n    return pathsThatContainNodeId;\n  };\n\n  /**\n   * Get a non empty path index. It will loop through the paths and\n   * return the index of the first non empty path.\n   * @param paths an array of paths. each path is an array of node ids\n   * @return the index of the path that is not empty\n   */\n  getNonEmptyPathIndex(paths) {\n    if (paths != null) {\n      for (let p = 0; p < paths.length; p++) {\n        const path = paths[p];\n        if (path.length !== 0) {\n          return p;\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Remember the branches.\n   * @param branches An array of arrays of node ids.\n   */\n  setBranchesCache(branches) {\n    this.branchesCache = branches;\n  }\n\n  /**\n   * Get the branches that were previously calculated.\n   * @returns An array of arrays of node ids.\n   */\n  getBranchesCache() {\n    return this.branchesCache;\n  }\n\n  /**\n   * Remove the branches cache.\n   */\n  clearBranchesCache() {\n    this.branchesCache = null;\n  }\n\n  /**\n   * Get the branches in the project\n   */\n  getBranches() {\n    /*\n     * Do not use the branches cache in the authoring tool because the branches\n     * may change when the author changes the project. In all other modes the\n     * branches can't change so we can use the cache.\n     */\n    if (this.ConfigService.getMode() != 'author') {\n      let branchesCache = this.getBranchesCache();\n      if (branchesCache != null) {\n        return branchesCache;\n      }\n    }\n\n    const startNodeId = this.getStartNodeId();\n\n    /*\n     * an array to keep track of the node ids in the path that\n     * we are currently on as we traverse the nodes in the project\n     * depth first\n     */\n    const pathsSoFar = [];\n\n    const allPaths = this.getAllPaths(pathsSoFar, startNodeId);\n    const branches = this.findBranches(allPaths);\n    if (this.ConfigService.getMode() != 'author') {\n      this.setBranchesCache(branches);\n    }\n    return branches;\n  };\n\n  /**\n   * Find the branches in the project\n   * @param paths all the possible paths through the project\n   * @return an array of branch objects. each branch object contains\n   * the branch start point, the branch paths, and the branch\n   * end point\n   */\n  findBranches(paths) {\n    let branches = [];\n    let previousNodeId = null;\n\n    /*\n     * continue until all the paths are empty. we will remove\n     * node ids from the paths as we traverse the paths to find\n     * the branches\n     */\n    while (!this.arePathsEmpty(paths)) {\n      const nodeId = this.getFirstNodeIdInPathAtIndex(paths, 0);\n\n      if (this.areFirstNodeIdsInPathsTheSame(paths)) {\n        // the first node ids in all the paths are the same\n\n        this.removeNodeIdFromPaths(nodeId, paths);\n        previousNodeId = nodeId;\n      } else {\n        // not all the top node ids are the same which means we have branched\n\n        const branchMetaObject = this.createBranchMetaObject(previousNodeId);\n        branchMetaObject.branchStartPoint = previousNodeId;\n\n        const nextCommonNodeId = this.findNextCommonNodeId(paths);\n        branchMetaObject.branchEndPoint = nextCommonNodeId;\n\n        let branchPaths = this.extractPathsUpToNodeId(paths, nextCommonNodeId);\n        branchPaths = this.removeDuplicatePaths(branchPaths);\n        branchMetaObject.branchPaths = branchPaths;\n        branches.push(branchMetaObject);\n\n        // trim the paths so that they start at the branch end point\n        this.trimPathsUpToNodeId(paths, nextCommonNodeId);\n\n        // remember this node id for the next iteration of the loop\n        previousNodeId = nextCommonNodeId;\n      }\n    }\n    return branches;\n  };\n\n  /**\n   * Create a branch meta object that will contain the branch start\n   * point, branch paths, and branch end point\n   * @return an object that contains a branch start point, branch paths,\n   * and a branch end point\n   */\n  createBranchMetaObject() {\n    const branchMetaObject = {};\n    branchMetaObject.branchStartPoint = null;\n    branchMetaObject.branchPaths = [];\n    branchMetaObject.branchEndPoint = null;\n    return branchMetaObject;\n  };\n\n  /**\n   * Find the next common node id in all the paths\n   * @param paths the paths to find the common node id in\n   * @return a node id that is in all the paths or null\n   * if there is no node id that is in all the paths\n   */\n  findNextCommonNodeId(paths) {\n    let nextCommonNodeId = null;\n    if (paths != null) {\n      if (paths.length > 0) {\n        const path = paths[0];\n\n        for (let tempNodeId of path) {\n          if (this.allPathsContainNodeId(paths, tempNodeId)) {\n            /*\n             * the node id is in all the paths so we have found\n             * what we were looking for\n             */\n            nextCommonNodeId = tempNodeId;\n            break;\n          }\n        }\n      }\n    }\n    return nextCommonNodeId;\n  };\n\n  /**\n   * Check if all the paths contain the node id\n   * @param paths an array of paths. each path contains an array of node ids\n   * @param nodeId the node id that we will check is in all the paths\n   * @return whether the node id is in all the paths\n   */\n  allPathsContainNodeId(paths, nodeId) {\n    let result = false;\n    if (paths != null) {\n      for (let path of paths) {\n        const index = path.indexOf(nodeId);\n        if (index == -1) {\n          result = false;\n          break;\n        } else {\n          result = true;\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Trim the paths up to the given node id so that the paths will contain\n   * the given node id and all the node ids after it. This function will\n   * modify the paths.\n   * @param paths the paths to trim\n   * @param nodeId the node id to trim up to\n   */\n  trimPathsUpToNodeId(paths, nodeId) {\n    if (paths != null) {\n      for (let path of paths) {\n        if (path != null) {\n          let index = path.indexOf(nodeId);\n\n          if (index == -1) {\n            /*\n             * the node id is not in the path so we will\n             * trim the path to the end which will make\n             * the path empty\n             */\n            index = path.length;\n          }\n\n          /*\n           * trim the path up to the node id index. this will\n           * modify the path array.\n           */\n          path.splice(0, index);\n        }\n      }\n    }\n  };\n\n\n  /**\n   * Extract the paths up to a given node id. This will be used to\n   * obtain branch paths.\n   * @param paths the paths to extract from\n   * @param nodeId the node id to extract up to\n   * @return paths that go up to but do not include the node id\n   */\n  extractPathsUpToNodeId(paths, nodeId) {\n    const extractedPaths = [];\n    if (paths != null) {\n      for (let path of paths) {\n        if (path != null) {\n          let index = path.indexOf(nodeId);\n\n          if (index == -1) {\n            /*\n             * the node id is not in the path so we will\n             * extract up to the end of the path\n             */\n            index = path.length;\n          }\n\n          /*\n           * get the path up to the node id index. this does\n           * not modify the path array.\n           */\n          const extractedPath = path.slice(0, index);\n\n          extractedPaths.push(extractedPath);\n        }\n      }\n    }\n    return extractedPaths;\n  };\n\n  /**\n   * Removes duplicate paths\n   * @param paths an array of paths. each path contains an array of node ids\n   * @return an array of unique paths\n   */\n  removeDuplicatePaths(paths) {\n    const uniquePaths = [];\n    if (paths != null) {\n      for (let path of paths) {\n        let isPathInUniquePaths = false;\n        for (let uniquePath of uniquePaths) {\n          if (this.pathsEqual(path, uniquePath)) {\n            isPathInUniquePaths = true;\n          }\n        }\n\n        if (!isPathInUniquePaths) {\n          // the path is not equal to any paths in the unique\n          // paths array so we will add it to the unique paths array\n          uniquePaths.push(path);\n        }\n      }\n    }\n    return uniquePaths;\n  };\n\n  /**\n   * Check if two paths are equal\n   * @param path1 an array of node ids\n   * @param path2 an array of node ids\n   * @return whether the two paths contain the same node ids\n   * in the same order\n   */\n  pathsEqual(path1, path2) {\n    let result = false;\n    if (path1 != null && path2 != null) {\n      if (path1.length === path2.length) {\n        result = true;\n\n        for (let x = 0; x < path1.length; x++) {\n          const path1NodeId = path1[x];\n          const path2NodeId = path2[x];\n          if (path1NodeId !== path2NodeId) {\n            result = false;\n            break;\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Check if a node id is in any branch\n   * @param branches an array of branch objects\n   * @param nodeId the node id to check\n   * @return whether the node id is in any branch\n   */\n  isNodeIdInABranch(branches, nodeId) {\n    if (branches != null && nodeId != null) {\n      for (let branch of branches) {\n        if (branch != null) {\n          const branchPaths = branch.branchPaths;\n          if (branchPaths != null) {\n            for (let branchPath of branchPaths) {\n              if (branchPath != null) {\n                const index = branchPath.indexOf(nodeId);\n                if (index != -1) {\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Get the branch paths that a node id is in\n   * @param branches an array of branch objects\n   * @param nodeId the node id to check\n   * @return an array of the branch paths that the node id is in\n   */\n  getBranchPathsByNodeId(branches, nodeId) {\n    const branchPathsIn = [];\n    if (branches != null && nodeId != null) {\n      for (let branch of branches) {\n        if (branch != null) {\n          const branchPaths = branch.branchPaths;\n          if (branchPaths != null) {\n            for (let branchPath of branchPaths) {\n              if (branchPath != null) {\n                const index = branchPath.indexOf(nodeId);\n                if (index != -1) {\n                  /*\n                   * the node is in this branch path so we will\n                   * add the branch path to our array\n                   */\n                  branchPathsIn.push(branchPath);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return branchPathsIn;\n  }\n\n  /**\n   * Get the component by node id and component id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns the component or null if the nodeId or componentId are null or does not exist in the project.\n   */\n  getComponentByNodeIdAndComponentId(nodeId, componentId) {\n    if (nodeId != null && componentId != null) {\n      const components = this.getComponentsByNodeId(nodeId);\n      for (let tempComponent of components) {\n        if (tempComponent != null) {\n          const tempComponentId = tempComponent.id;\n          if (componentId === tempComponentId) {\n            return tempComponent;\n          }\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Returns the position of the component in the node by node id and\n   * component id, 0-indexed.\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns the component's position or -1 if nodeId or componentId are null\n   * or doesn't exist in the project.\n   */\n  getComponentPositionByNodeIdAndComponentId(nodeId, componentId) {\n    if (nodeId != null && componentId != null) {\n      const components = this.getComponentsByNodeId(nodeId);\n      for (let c = 0; c < components.length; c++) {\n        const tempComponent = components[c];\n        if (tempComponent != null) {\n          const tempComponentId = tempComponent.id;\n          if (componentId === tempComponentId) {\n            return c;\n          }\n        }\n      }\n    }\n    return -1;\n  };\n\n  /**\n   * Get the components in a node\n   * @param nodeId the node id\n   * @returns an array of components or empty array if nodeId is null or\n   * doesn't exist in the project.\n   * if the node exists but doesn't have any components, returns an empty array.\n   */\n  getComponentsByNodeId(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        if (node.components != null) {\n          return node.components;\n        }\n      }\n    }\n    return [];\n  };\n\n\n  // TODO: how is this different from straight-up calling getNodeById?\n  getNodeContentByNodeId(nodeId) {\n    let nodeContent = null;\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        nodeContent = node;\n      }\n    }\n    return nodeContent;\n  };\n\n  /**\n   * Insert the node after the given node id in the group's\n   * array of children ids\n   * @param nodeIdToInsert the node id we want to insert\n   * @param nodeIdToInsertAfter the node id we want to insert after\n   */\n  insertNodeAfterInGroups(nodeIdToInsert, nodeIdToInsertAfter) {\n    const groupNodes = this.getGroupNodes();\n    if (groupNodes != null) {\n      for (let group of groupNodes) {\n        if (group != null) {\n          this.insertNodeAfterInGroup(group, nodeIdToInsert, nodeIdToInsertAfter);\n        }\n      }\n    }\n    const inactiveGroupNodes = this.getInactiveGroupNodes();\n    if (inactiveGroupNodes != null) {\n      for (let inactiveGroup of inactiveGroupNodes) {\n        if (inactiveGroup != null) {\n          this.insertNodeAfterInGroup(inactiveGroup, nodeIdToInsert, nodeIdToInsertAfter);\n        }\n      }\n    }\n  }\n\n  /**\n   * Insert a node id in a group after another specific node id.\n   * @param group A group object.\n   * @param nodeIdToInsert The node id to insert.\n   * @param nodeIdToInsertAfter The node id to insert after.\n   * @returns {boolean} Whether we inserted the node id.\n   */\n  insertNodeAfterInGroup(group, nodeIdToInsert, nodeIdToInsertAfter) {\n    const ids = group.ids;\n    if (ids != null) {\n      for (let i = 0; i < ids.length; i++) {\n        const id = ids[i];\n        if (nodeIdToInsertAfter === id) {\n          ids.splice(i + 1, 0, nodeIdToInsert);\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Update the transitions to handle inserting a node after another node\n   * @param node the node to insert\n   * @param nodeId the node id to insert after\n   */\n  insertNodeAfterInTransitions(node, nodeId) {\n    const previousNode = this.getNodeById(nodeId);\n\n    if (previousNode != null) {\n      if (previousNode.transitionLogic == null) {\n        previousNode.transitionLogic = {};\n        previousNode.transitionLogic.transitions = [];\n      }\n\n      if (node.transitionLogic == null) {\n        node.transitionLogic = {};\n      }\n\n      if (node.transitionLogic.transitions == null) {\n        node.transitionLogic.transitions = [];\n      }\n\n      if (this.isGroupNode(node.id)) {\n        /*\n         * the node we are inserting is a group so we will update\n         * the transitions of its children so that they transition\n         * to the correct node\n         */\n        this.updateChildrenTransitionsForMovingGroup(node, nodeId);\n      }\n\n      const previousNodeTransitionLogic = previousNode.transitionLogic;\n\n      if (previousNodeTransitionLogic != null) {\n        const transitions = previousNodeTransitionLogic.transitions;\n\n        if (transitions != null) {\n          const transitionsJSONString = angular.toJson(transitions);\n          const transitionsCopy = angular.fromJson(transitionsJSONString);\n\n          // set the transitions from the before node into the inserted node\n          node.transitionLogic.transitions = transitionsCopy;\n        }\n      }\n\n      if (node.transitionLogic.transitions.length == 0) {\n        /*\n         * The node does not have any transitions so we will look for\n         * a transition on the parent group. If the parent has a\n         * transition we will use it for the node.\n         */\n\n        const parentGroupId = this.getParentGroupId(nodeId);\n\n        if (parentGroupId != null &&\n            parentGroupId != '' &&\n            parentGroupId != 'group0') {\n          const parentTransitions = this.getTransitionsByFromNodeId(parentGroupId);\n\n          if (parentTransitions != null) {\n            for (let parentTransition of parentTransitions) {\n              const newTransition = {};\n              if (parentTransition != null) {\n                const toNodeId = parentTransition.to;\n                if (this.isGroupNode(toNodeId)) {\n                  const startId = this.getGroupStartId(toNodeId);\n                  if (startId == null || startId == '') {\n                    // there is no start id so we will just use the group id\n                    newTransition.to = toNodeId;\n                  } else {\n                    // there is a start id so we will use it as the to node\n                    newTransition.to = startId;\n                  }\n                } else {\n                  newTransition.to = toNodeId;\n                }\n              }\n              node.transitionLogic.transitions.push(newTransition);\n            }\n          }\n        }\n      }\n\n      const newNodeId = node.id;\n\n      // TODO handle branching case\n\n      previousNode.transitionLogic.transitions = [];\n\n      const transitionObject = {};\n      transitionObject.to = newNodeId;\n      previousNode.transitionLogic.transitions.push(transitionObject);\n      this.removeBranchPathTakenNodeConstraints(node.id);\n      const branchPathTakenConstraints = this.getBranchPathTakenConstraintsByNodeId(nodeId);\n\n      /*\n       * if the previous node was in a branch path, we will also put the\n       * inserted node into the branch path\n       */\n      if (branchPathTakenConstraints != null &&\n          branchPathTakenConstraints.length > 0) {\n        if (node.constraints == null) {\n          node.constraints = [];\n        }\n\n        for (let branchPathTakenConstraint of branchPathTakenConstraints) {\n          if (branchPathTakenConstraint != null) {\n            // create a new constraint with the same branch path taken parameters\n            const newConstraint = {};\n            newConstraint.id = this.getNextAvailableConstraintIdForNodeId(node.id);\n            newConstraint.action = branchPathTakenConstraint.action;\n            newConstraint.targetId = node.id;\n            newConstraint.removalCriteria = this.UtilService.makeCopyOfJSONObject(branchPathTakenConstraint.removalCriteria);\n            node.constraints.push(newConstraint);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Insert a node into a group\n   * @param nodeIdToInsert the node id to insert\n   * @param nodeIdToInsertInside the node id of the group we will insert into\n   */\n  insertNodeInsideInGroups(nodeIdToInsert, nodeIdToInsertInside) {\n    const group = this.getNodeById(nodeIdToInsertInside);\n    if (group != null) {\n      const ids = group.ids;\n      if (ids != null) {\n        ids.splice(0, 0, nodeIdToInsert);\n        group.startId = nodeIdToInsert;\n      }\n    }\n  }\n\n  /**\n   * Update the transitions to handle inserting a node into a group\n   * @param nodeIdToInsert node id that we will insert\n   * @param nodeIdToInsertInside the node id of the group we are inserting into\n   */\n  insertNodeInsideInTransitions(nodeIdToInsert, nodeIdToInsertInside) {\n    const nodeToInsert = this.getNodeById(nodeIdToInsert);\n\n    if (nodeToInsert != null &&\n        nodeToInsert.transitionLogic != null &&\n        nodeToInsert.transitionLogic.transitions != null) {\n      nodeToInsert.transitionLogic.transitions = [];\n\n      /*\n       * remove the branch path taken constraints from the node we are\n       * inserting\n       */\n      this.removeBranchPathTakenNodeConstraints(nodeIdToInsert);\n    }\n\n    const group = this.getNodeById(nodeIdToInsertInside);\n    if (this.isGroupNode(nodeIdToInsert)) {\n      /*\n       * the node we are inserting is a group so we will update\n       * the transitions of its children so that they transition\n       * to the correct node\n       */\n      this.updateChildrenTransitionsForMovingGroup(nodeToInsert, null);\n    }\n\n    /*\n     * since we are inserting a node into a group, the node will become\n     * the first node in the group. this means we need to update any nodes\n     * that point to the old start id and make them point to the node\n     * we are inserting.\n     */\n    if (nodeToInsert != null && group != null) {\n      const startId = group.startId;\n      const previousNodes = this.getNodesByToNodeId(startId);\n\n      if (previousNodes == null || previousNodes.length == 0) {\n        const previousGroups = this.getGroupNodesByToNodeId(nodeIdToInsertInside);\n        for (let previousGroup of previousGroups) {\n          if (previousGroup != null) {\n            // get the nodes that do not have a transition in the previous group\n            const lastNodesInGroup = this.getLastNodesInGroup(previousGroup.id);\n\n            for (let node of lastNodesInGroup) {\n              // add a transition from the node to the node we are inserting\n              this.addToTransition(node, nodeIdToInsert);\n            }\n          }\n        }\n      } else {\n        for (let previousNode of previousNodes) {\n          if (previousNode != null && previousNode.id != 'group0') {\n            // change the transition to point to the node we are inserting\n            this.updateToTransition(previousNode, startId, nodeIdToInsert);\n          }\n        }\n      }\n\n      /*\n       * update all the transitions that point to the group and change\n       * them to point to the new start id\n       */\n      const nodesThatTransitionToGroup = this.getNodesByToNodeId(nodeIdToInsertInside);\n\n      if (nodesThatTransitionToGroup != null) {\n        for (let nodeThatTransitionsToGroup of nodesThatTransitionToGroup) {\n          if (!this.isGroupNode(nodeThatTransitionsToGroup.id)) {\n            this.updateToTransition(nodeThatTransitionsToGroup, nodeIdToInsertInside, nodeIdToInsert);\n          }\n        }\n      }\n\n      /*\n       * create a transition from the node we are inserting to the node that\n       * was previously the start node\n       */\n      if (startId != null && startId != '') {\n        const startNode = this.getNodeById(startId);\n\n        if (startNode != null) {\n          // the group has a start node which will become the transition to node\n\n          if (nodeToInsert.transitionLogic == null) {\n            nodeToInsert.transitionLogic = {};\n          }\n\n          if (nodeToInsert.transitionLogic.transitions == null) {\n            nodeToInsert.transitionLogic.transitions = [];\n          }\n\n          /*\n           * make the inserted node transition to the previous start node\n           */\n          const transitionObject = {};\n          transitionObject.to = startId;\n          nodeToInsert.transitionLogic.transitions.push(transitionObject);\n        }\n      }\n\n      // check if the node we inserted has any transitions now\n      const transitions = this.getTransitionsByFromNodeId(nodeIdToInsert);\n\n      if (transitions == null || transitions.length == 0) {\n        /*\n         * the node doesn't have any transitions so we will see if\n         * the parent group transitions to anything and use that\n         * transition\n         */\n\n        const parentTransitions = this.getTransitionsByFromNodeId(nodeIdToInsertInside);\n\n        if (parentTransitions != null) {\n          for (let parentTransition of parentTransitions) {\n            if (parentTransition != null) {\n              const toNodeId = parentTransition.to;\n              if (this.isGroupNode(toNodeId)) {\n                const nextGroup = this.getNodeById(toNodeId);\n\n                if (nextGroup != null) {\n                  const startId = nextGroup.startId;\n\n                  if (startId == null || startId == '') {\n                    // there is no start id so we will just transition to the group\n                    this.addToTransition(nodeToInsert, toNodeId);\n                  } else {\n                    // there is a start id so we will transition to that\n                    this.addToTransition(nodeToInsert, startId);\n                  }\n                }\n              } else {\n                // the to node is not a group\n\n                /*\n                 * we will add a transition from the node we are inserting to\n                 * to that node\n                 */\n                this.addToTransition(nodeToInsert, toNodeId);\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a transition to a node\n   * @param node the node we are adding a transition to\n   * @param toNodeId the node id we going to transition to\n   * @param criteria (optional) a criteria object specifying\n   * what needs to be satisfied in order to use this transition\n   */\n  addToTransition(node, toNodeId, criteria) {\n    if (node != null) {\n      if (node.transitionLogic == null) {\n        node.transitionLogic = {};\n      }\n      if (node.transitionLogic.transitions == null) {\n        node.transitionLogic.transitions = [];\n      }\n      const transition = {};\n      transition.to = toNodeId;\n      if (criteria != null) {\n        transition.criteria = criteria;\n      }\n      node.transitionLogic.transitions.push(transition);\n    }\n  }\n\n  /**\n   * Update the to value of aa transition\n   * @param node the node to update\n   * @param oldToNodeId the previous to node id\n   * @param newToNodeId the new to node id\n   */\n  updateToTransition(node, oldToNodeId, newToNodeId) {\n    if (node != null) {\n      if (node.transitionLogic == null) {\n        node.transitionLogic = {};\n      }\n\n      if (node.transitionLogic.transitions == null) {\n        node.transitionLogic.transitions = [];\n      }\n\n      const transitions = node.transitionLogic.transitions;\n      for (let transition of transitions) {\n        if (transition != null) {\n          const toNodeId = transition.to;\n          if (oldToNodeId === toNodeId) {\n            transition.to = newToNodeId;\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the nodes in a group that do not have transitions\n   * @param groupId the group id\n   * @returns the nodes in the group that do not have transitions\n   */\n  getLastNodesInGroup(groupId) {\n    const lastNodes = [];\n    if (groupId != null) {\n      const group = this.getNodeById(groupId);\n      if (group != null) {\n        const childIds = group.ids;\n        if (childIds != null) {\n          for (let childId of childIds) {\n            if (childId != null) {\n              const child = this.getNodeById(childId);\n              if (child != null) {\n                const transitionLogic = child.transitionLogic;\n                if (transitionLogic != null) {\n                  const transitions = transitionLogic.transitions;\n                  if (transitions == null || transitions.length == 0) {\n                    lastNodes.push(child);\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return lastNodes;\n  }\n\n  /**\n   * Get the next available group id\n   * @returns the next available group id\n   */\n  getNextAvailableGroupId() {\n    const groupIds = this.getGroupIds();\n    let largestGroupIdNumber = null;\n    for (let groupId of groupIds) {\n      // get the number from the group id e.g. the number of 'group2' would be 2\n      let groupIdNumber = groupId.replace('group', '');\n\n      // make sure the number is an actual number\n      if (!isNaN(groupIdNumber)) {\n        groupIdNumber = parseInt(groupIdNumber);\n\n        // update the largest group id number if necessary\n        if (largestGroupIdNumber == null) {\n          largestGroupIdNumber = groupIdNumber;\n        } else if (groupIdNumber > largestGroupIdNumber) {\n          largestGroupIdNumber = groupIdNumber;\n        }\n      }\n    }\n\n    const nextAvailableGroupId = 'group' + (largestGroupIdNumber + 1);\n    return nextAvailableGroupId;\n  }\n\n  /**\n   * Get all the group ids\n   * @returns an array with all the group ids\n   */\n  getGroupIds() {\n    const groupIds = [];\n\n    const groupNodes = this.groupNodes;\n    for (let group of groupNodes) {\n      if (group != null) {\n        const groupId = group.id;\n        if (groupId != null) {\n          groupIds.push(groupId);\n        }\n      }\n    }\n\n    const inactiveGroupNodes = this.getInactiveGroupNodes();\n    for (let inactiveGroup of inactiveGroupNodes) {\n      if (inactiveGroup != null) {\n        const inactiveGroupId = inactiveGroup.id;\n        if (inactiveGroupId != null) {\n          groupIds.push(inactiveGroupId);\n        }\n      }\n    }\n    return groupIds;\n  }\n\n  /**\n   * Get the next available node id\n   * @param nodeIdsToSkip (optional) An array of additional node ids to not\n   * use. This parameter is used in cases where we are creating multiple new\n   * nodes at once.\n   * Example\n   * We ask for two new node ids by calling getNextAvailableNodeId() twice.\n   * The first time it returns \"node10\".\n   * If we ask the second time without actually creating and adding node10,\n   * it will return \"node10\" again. If we provide \"node10\" in the\n   * nodeIdsToSkip, then getNextAvailableNodeId() will properly return to us\n   * \"node11\".\n   * @returns the next available node id\n   */\n  getNextAvailableNodeId(nodeIdsToSkip) {\n    const nodeIds = this.getNodeIds();\n    let largestNodeIdNumber = null;\n\n    for (let nodeId of nodeIds) {\n      // get the number from the node id e.g. the number of 'node2' would be 2\n      let nodeIdNumber = nodeId.replace('node', '');\n\n      // make sure the number is an actual number\n      if (!isNaN(nodeIdNumber)) {\n        nodeIdNumber = parseInt(nodeIdNumber);\n\n        // update the largest node id number if necessary\n        if (largestNodeIdNumber == null) {\n          largestNodeIdNumber = nodeIdNumber;\n        } else if (nodeIdNumber > largestNodeIdNumber) {\n          largestNodeIdNumber = nodeIdNumber;\n        }\n      }\n    }\n\n    const inactiveNodeIds = this.getInactiveNodeIds();\n    for (let inactiveNodeId of inactiveNodeIds) {\n      // get the number from the node id e.g. the number of 'node2' would be 2\n      let nodeIdNumber = inactiveNodeId.replace('node', '');\n\n      // make sure the number is an actual number\n      if (!isNaN(nodeIdNumber)) {\n        nodeIdNumber = parseInt(nodeIdNumber);\n\n        // update the largest node id number if necessary\n        if (largestNodeIdNumber == null) {\n          largestNodeIdNumber = nodeIdNumber;\n        } else if (nodeIdNumber > largestNodeIdNumber) {\n          largestNodeIdNumber = nodeIdNumber;\n        }\n      }\n    }\n\n    if (nodeIdsToSkip != null) {\n      // there are node ids to skip\n\n      for (let nodeIdToSkip of nodeIdsToSkip) {\n        // get the number from the node id e.g. the number of 'node2' would be 2\n        let nodeIdNumber = nodeIdToSkip.replace('node', '');\n\n        // make sure the number is an actual number\n        if (!isNaN(nodeIdNumber)) {\n          nodeIdNumber = parseInt(nodeIdNumber);\n\n          // update the largest node id number if necessary\n          if (largestNodeIdNumber == null) {\n            largestNodeIdNumber = nodeIdNumber;\n          } else if (nodeIdNumber > largestNodeIdNumber) {\n            largestNodeIdNumber = nodeIdNumber;\n          }\n        }\n      }\n    }\n\n    const nextAvailableNodeId = 'node' + (largestNodeIdNumber + 1);\n    return nextAvailableNodeId;\n  }\n\n  /**\n   * Get all the node ids from steps (not groups)\n   * @returns an array with all the node ids\n   */\n  getNodeIds() {\n    const nodeIds = [];\n    for (let node of this.applicationNodes) {\n      if (node != null) {\n        const nodeId = node.id;\n        if (nodeId != null) {\n          nodeIds.push(nodeId);\n        }\n      }\n    }\n    return nodeIds;\n  }\n\n  /**\n   * Get all the node ids from inactive steps\n   * @returns an array with all the inactive node ids\n   */\n  getInactiveNodeIds() {\n    const nodeIds = [];\n    const inactiveNodes = this.project.inactiveNodes;\n    if (inactiveNodes != null) {\n      for (let inactiveNode of inactiveNodes) {\n        if (inactiveNode != null) {\n          const nodeId = inactiveNode.id;\n          if (nodeId != null) {\n            nodeIds.push(nodeId);\n          }\n        }\n      }\n    }\n    return nodeIds;\n  }\n\n  /**\n   * Move nodes inside a group node\n   * @param nodeIds the node ids to move\n   * @param nodeId the node id of the group we are moving the nodes inside\n   */\n  moveNodesInside(nodeIds, nodeId) {\n    const movedNodes = [];\n\n    for (let n = 0; n < nodeIds.length; n++) {\n      const tempNodeId = nodeIds[n];\n      const tempNode = this.getNodeById(tempNodeId);\n      movedNodes.push(tempNode);\n\n      const movingNodeIsActive = this.isActive(tempNodeId);\n      const stationaryNodeIsActive = this.isActive(nodeId);\n\n      if (movingNodeIsActive && stationaryNodeIsActive) {\n        // we are moving from active to active\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n\n        if (n == 0) {\n          /*\n           * this is the first node we are moving so we will insert it\n           * into the beginning of the group\n           */\n          this.insertNodeInsideInTransitions(tempNodeId, nodeId);\n          this.insertNodeInsideInGroups(tempNodeId, nodeId);\n        } else {\n          /*\n           * this is not the first node we are moving so we will insert\n           * it after the node we previously inserted\n           */\n          this.insertNodeAfterInTransitions(tempNode, nodeId);\n          this.insertNodeAfterInGroups(tempNodeId, nodeId);\n        }\n      } else if (movingNodeIsActive && !stationaryNodeIsActive) {\n        // we are moving from active to inactive\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n\n        if (n == 0) {\n          /*\n           * this is the first node we are moving so we will insert it\n           * into the beginning of the group\n           */\n          this.moveFromActiveToInactiveInsertInside(tempNode, nodeId);\n        } else {\n          /*\n           * this is not the first node we are moving so we will insert\n           * it after the node we previously inserted\n           */\n          this.moveToInactive(tempNode, nodeId);\n        }\n      } else if (!movingNodeIsActive && stationaryNodeIsActive) {\n        // we are moving from inactive to active\n\n        this.moveToActive(tempNode);\n\n        if (n == 0) {\n          /*\n           * this is the first node we are moving so we will insert it\n           * into the beginning of the group\n           */\n          this.insertNodeInsideInTransitions(tempNodeId, nodeId);\n          this.insertNodeInsideInGroups(tempNodeId, nodeId);\n        } else {\n          /*\n           * this is not the first node we are moving so we will insert\n           * it after the node we previously inserted\n           */\n          this.insertNodeAfterInTransitions(tempNode, nodeId);\n          this.insertNodeAfterInGroups(tempNodeId, nodeId);\n        }\n      } else if (!movingNodeIsActive && !stationaryNodeIsActive) {\n        // we are moving from inactive to inactive\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n\n        if (n == 0) {\n          /*\n           * this is the first node we are moving so we will insert it\n           * into the beginning of the group\n           */\n          this.moveFromInactiveToInactiveInsertInside(tempNode, nodeId);\n        } else {\n          /*\n           * this is not the first node we are moving so we will insert\n           * it after the node we previously inserted\n           */\n          this.moveInactiveNode(tempNode, nodeId);\n        }\n      }\n\n      /*\n       * remember the node id so we can put the next node (if any)\n       * after this one\n       */\n      nodeId = tempNode.id;\n    }\n    return movedNodes;\n  }\n\n  /**\n   * Move nodes after a certain node id\n   * @param nodeIds the node ids to move\n   * @param nodeId the node id we will put the moved nodes after\n   */\n  moveNodesAfter(nodeIds, nodeId) {\n    const movedNodes = [];\n\n    for (let tempNodeId of nodeIds) {\n      const node = this.getNodeById(tempNodeId);\n      movedNodes.push(node);\n\n      const movingNodeIsActive = this.isActive(tempNodeId);\n      const stationaryNodeIsActive = this.isActive(nodeId);\n\n      if (movingNodeIsActive && stationaryNodeIsActive) {\n        // we are moving from active to active\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n        this.insertNodeAfterInGroups(tempNodeId, nodeId);\n        this.insertNodeAfterInTransitions(node, nodeId);\n      } else if (movingNodeIsActive && !stationaryNodeIsActive) {\n        // we are moving from active to inactive\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n        this.moveToInactive(node, nodeId);\n      } else if (!movingNodeIsActive && stationaryNodeIsActive) {\n        // we are moving from inactive to active\n\n        this.moveToActive(node);\n        this.insertNodeAfterInGroups(tempNodeId, nodeId);\n        this.insertNodeAfterInTransitions(node, nodeId);\n      } else if (!movingNodeIsActive && !stationaryNodeIsActive) {\n        // we are moving from inactive to inactive\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n        this.moveInactiveNode(node, nodeId);\n      }\n\n      // remember the node id so we can put the next node (if any) after this one\n      nodeId = node.id;\n    }\n    return movedNodes;\n  }\n\n  /**\n   * Copy the node with the specified nodeId\n   * @param nodeId the node id to copy\n   * @return copied node\n   */\n  copyNode(nodeId) {\n    const node = this.getNodeById(nodeId);\n    const nodeCopy = this.UtilService.makeCopyOfJSONObject(node);\n    nodeCopy.id = this.getNextAvailableNodeId();\n    nodeCopy.transitionLogic = {};  // clear transition logic\n    nodeCopy.constraints = [];  // clear constraints\n\n    const newComponentIds = [];\n    for (let component of nodeCopy.components) {\n      const newComponentId = this.getUnusedComponentId(newComponentIds);\n      newComponentIds.push(newComponentId);\n      component.id = newComponentId;\n    }\n    return nodeCopy;\n  }\n\n  /**\n   * Delete a node\n   * @param nodeId the node id\n   */\n  deleteNode(nodeId) {\n    /*\n     * flag for whether we are deleting the project start node id.\n     * if we are deleting the project start node id, we will need\n     * to change it to the next logical node id that will be used\n     * as the project start.\n     */\n    let removingProjectStartNodeId = false;\n\n    if (this.isGroupNode(nodeId)) {\n      // the node is a group node so we will also remove all of its children\n      const group = this.getNodeById(nodeId);\n\n      // TODO check if the child is in another group, if so do not remove\n\n      if (group != null) {\n        const ids = group.ids;\n        for (let i = 0; i < ids.length; i++) {\n          const id = ids[i];\n          this.removeNodeIdFromTransitions(id);\n          this.removeNodeIdFromGroups(id);\n          this.removeNodeIdFromNodes(id);\n\n          if (this.project.startNodeId == id) {\n            removingProjectStartNodeId = true;\n          }\n\n          /*\n           * move the counter back because we have removed a child\n           * from the parent group's array of child ids so all of\n           * the child ids were shifted back one and the next child\n           * we want will be at i--\n           */\n          i--;\n        }\n      }\n    }\n\n    const parentGroup = this.getParentGroup(nodeId);\n\n    // check if we need to update the start id of the parent group\n    if (parentGroup != null) {\n\n      /*\n       * the node is the start node of the parent group so we need\n       * to update the start id of the parent group to point to\n       * the next node\n       */\n      if (nodeId === parentGroup.startId) {\n        let hasSetNewStartId = false;\n\n        const node = this.getNodeById(nodeId);\n        if (node != null) {\n          const transitionLogic = node.transitionLogic;\n          if (transitionLogic != null) {\n            const transitions = transitionLogic.transitions;\n            if (transitions != null && transitions.length > 0) {\n              const transition = transitions[0];\n              if (transition != null) {\n                const toNodeId = transition.to;\n                if (toNodeId != null) {\n                  if (this.isNodeInGroup(toNodeId, parentGroup.id)) {\n                    parentGroup.startId = toNodeId;\n                    hasSetNewStartId = true;\n                  }\n                }\n              }\n            }\n          }\n        }\n\n        if (!hasSetNewStartId) {\n          parentGroup.startId = '';\n        }\n      }\n    }\n\n    if (nodeId === this.getStartNodeId()) {\n      removingProjectStartNodeId = true;\n    }\n\n    if (removingProjectStartNodeId) {\n      /*\n       * we are removing the project start node id so we need to update\n       * the startNodeId to something else\n       */\n\n      if (this.isGroupNode(nodeId)) {\n        /*\n         * we are removing a group so we need to set the startNodeId to\n         * the first node of the next group or if the next group doesn't\n         * have any nodes, we will just use the next group\n         */\n\n        // get the transitions of the group we are removing\n        const transitions = this.getTransitionsByFromNodeId(nodeId);\n\n        if (transitions == null || transitions.length == 0) {\n          /*\n           * the group doesn't have any transitions so we will set\n           * the startNodeId to 'group0'\n           */\n          this.setStartNodeId('group0');\n        } else {\n          // the group has transitions\n\n          let nextNodeId = null;\n\n          if (transitions[0] != null && transitions[0].to != null) {\n            nextNodeId = transitions[0].to;\n          }\n\n          if (nextNodeId != null) {\n            if (this.isGroupNode(nextNodeId)) {\n              const nextGroupNode = this.getNodeById(nextNodeId);\n\n              if (nextGroupNode != null) {\n                const nextGroupStartId = nextGroupNode.startId;\n\n                if (nextGroupStartId == null) {\n                  /*\n                   * the next group does not have a start id so we\n                   * will just use the next group id as the project\n                   * start node id\n                   */\n                  this.setStartNodeId(nextNodeId);\n                } else {\n                  /*\n                   * the next group has a start id so we will use\n                   * it as the project start node id\n                   */\n                  this.setStartNodeId(nextGroupStartId);\n                }\n              }\n            } else {\n              /*\n               * the transition is to a step so we will use it as the\n               * project start node id\n               */\n              this.setStartNodeId(nextNodeId);\n            }\n          }\n        }\n      } else {\n        /*\n         * we are removing a step node so we will set the startNodeId to\n         * the next node in the transitions, or if there are no\n         * transitions, we will use the parent group\n         */\n\n        // get the transitions from the step we are removing\n        const transitions = this.getTransitionsByFromNodeId(nodeId);\n        const parentGroupId = this.getParentGroupId(nodeId);\n        if (transitions == null || transitions.length == 0) {\n          this.setStartNodeId(parentGroupId);\n        } else {\n          if (transitions[0] != null && transitions[0].to != null) {\n            let toNodeId = transitions[0].to;\n            if (this.isNodeInGroup(toNodeId, parentGroupId)) {\n              this.setStartNodeId(toNodeId);\n            } else {\n              this.setStartNodeId(this.getParentGroupId(nodeId));\n            }\n          }\n        }\n      }\n    }\n\n    this.removeNodeIdFromTransitions(nodeId);\n    this.removeNodeIdFromGroups(nodeId);\n    this.removeNodeIdFromNodes(nodeId);\n\n    if (parentGroup != null) {\n      this.recalculatePositionsInGroup(parentGroup.id);\n    }\n  }\n\n  /**\n   * Update the transitions to handle removing a node\n   * @param nodeId the node id to remove\n   */\n  removeNodeIdFromTransitions(nodeId) {\n    const nodeToRemove = this.getNodeById(nodeId);\n    const nodesByToNodeId = this.getNodesByToNodeId(nodeId);\n\n    const nodeToRemoveTransitionLogic = nodeToRemove.transitionLogic;\n    let nodeToRemoveTransitions = [];\n\n    if (nodeToRemoveTransitionLogic != null && nodeToRemoveTransitionLogic.transitions != null) {\n      nodeToRemoveTransitions = nodeToRemoveTransitionLogic.transitions;\n    }\n\n    const parentIdOfNodeToRemove = this.getParentGroupId(nodeId);\n    const parentGroup = this.getNodeById(parentIdOfNodeToRemove);\n\n    // update the start id if we are removing the start node of a group\n    if (parentGroup != null) {\n      const parentGroupStartId = parentGroup.startId;\n      if (parentGroupStartId != null) {\n        if (parentGroupStartId === nodeId) {\n          // the node we are removing is the start node\n\n          if (nodeToRemoveTransitions != null && nodeToRemoveTransitions.length > 0) {\n            for (let nodeToRemoveTransition of nodeToRemoveTransitions) {\n              if (nodeToRemoveTransition != null) {\n                const toNodeId = nodeToRemoveTransition.to;\n                if (toNodeId != null) {\n                  /*\n                   * we need to check that the to node id is in the\n                   * same group. some transitions point to a node id\n                   * in the next group which we would not want to use\n                   * for the start id.\n                   */\n                  if (this.getParentGroupId(toNodeId) == parentIdOfNodeToRemove) {\n                    // set the new start id\n                    parentGroup.startId = toNodeId;\n                  }\n                }\n              }\n            }\n          } else {\n            // there are no transitions so we will have an empty start id\n            parentGroup.startId = '';\n          }\n        }\n      }\n    }\n\n    for (let n = 0; n < nodesByToNodeId.length; n++) {\n      const node = nodesByToNodeId[n];\n\n      if (node != null) {\n        const parentIdOfFromNode = this.getParentGroupId(node.id);\n        const transitionLogic = node.transitionLogic;\n\n        if (transitionLogic != null) {\n          const transitions = transitionLogic.transitions;\n          for (let t = 0; t < transitions.length; t++) {\n            const transition = transitions[t];\n            if (nodeId === transition.to) {\n              // we have found the transition to the node we are removing\n\n              // copy the transitions from the node we are removing\n              let transitionsCopy = angular.toJson(nodeToRemoveTransitions);\n              transitionsCopy = angular.fromJson(transitionsCopy);\n\n              /*\n               * if the parent from group is different than the parent removing group\n               * remove transitions that are to a node in a different group than\n               * the parent removing group\n               */\n\n              if (parentIdOfFromNode != parentIdOfNodeToRemove) {\n                for (let tc = 0; tc < transitionsCopy.length; tc++) {\n                  const tempTransition = transitionsCopy[tc];\n                  if (tempTransition != null) {\n                    const tempToNodeId = tempTransition.to;\n                    if (tempToNodeId != null) {\n                      const parentIdOfToNode = this.getParentGroupId(tempToNodeId);\n                      if (parentIdOfNodeToRemove != parentIdOfToNode) {\n                        // remove the transition\n                        transitionsCopy.splice(tc, 1);\n                        tc--;\n                      }\n                    }\n                  }\n                }\n              }\n\n              if (this.isFirstNodeInBranchPath(nodeId)) {\n                /*\n                 * Get the node ids that have a branchPathTaken\n                 * constraint from the before node and to the node\n                 * we are removing. If there are any, we need to\n                 * update the branchPathTaken constraint with the\n                 * next nodeId that comes after the node we are\n                 * removing.\n                 */\n                const nodeIdsInBranch = this.getNodeIdsInBranch(node.id, nodeId);\n\n                if (nodeIdsInBranch != null) {\n                  for (let nodeIdInBranch of nodeIdsInBranch) {\n                    const nodeInBranch = this.getNodeById(nodeIdInBranch);\n                    for (let transitionCopy of transitionsCopy) {\n                      if (transitionCopy != null) {\n                        const currentFromNodeId = node.id;\n                        const currentToNodeId = nodeId;\n                        const newFromNodeId = node.id;\n                        const newToNodeId = transitionCopy.to;\n\n                        /*\n                         * change the branch path taken constraint by changing\n                         * the toNodeId\n                         */\n                        this.updateBranchPathTakenConstraint(nodeInBranch, currentFromNodeId, currentToNodeId, newFromNodeId, newToNodeId);\n                      }\n                    }\n                  }\n                }\n              } else if (this.isBranchPoint(nodeId)) {\n                /*\n                 * get all the branches that have the node we\n                 * are removing as the start point\n                 */\n                const branches = this.getBranchesByBranchStartPointNodeId(nodeId);\n\n                for (let branch of branches) {\n                  if (branch != null) {\n                    /*\n                     * get the branch paths. these paths do not\n                     * contain the start point or merge point.\n                     */\n                    const branchPaths = branch.branchPaths;\n\n                    if (branchPaths != null) {\n                      for (let branchPath of branchPaths) {\n                        if (branchPath != null) {\n                          const currentFromNodeId = nodeId;\n                          const currentToNodeId = branchPath[0];\n                          const newFromNodeId = node.id;\n                          const newToNodeId = branchPath[0];\n                          for (let branchPathNodeId of branchPath) {\n                            const branchPathNode = this.getNodeById(branchPathNodeId);\n                            this.updateBranchPathTakenConstraint(branchPathNode, currentFromNodeId, currentToNodeId, newFromNodeId, newToNodeId);\n                          }\n                        }\n                      }\n                    }\n                  }\n                }\n              }\n\n              // remove the transition to the node we are removing\n              transitions.splice(t, 1);\n\n              if (transitionsCopy != null) {\n                let insertIndex = t;\n\n                /*\n                 * loop through all the transitions from the node we are removing\n                 * and insert them into the transitions of the from node\n                 * e.g.\n                 * the node that comes before the node we are removing has these transitions\n                 * \"transitions\": [\n                 *     {\n                 *         \"to\": \"node4\"\n                 *     },\n                 *     {\n                 *         \"to\": \"node6\"\n                 *     }\n                 * ]\n                 *\n                 * we are removing node4. node4 has a transition to node5.\n                 *\n                 * the node that comes before the node we are removing now has these transitions\n                 * \"transitions\": [\n                 *     {\n                 *         \"to\": \"node5\"\n                 *     },\n                 *     {\n                 *         \"to\": \"node6\"\n                 *     }\n                 * ]\n                 */\n                for (let transitionCopy of transitionsCopy) {\n                  // insert a transition from the node we are removing\n                  transitions.splice(insertIndex, 0, transitionCopy);\n                  insertIndex++;\n                }\n              }\n\n              // check if the node we are moving is a group\n              if (this.isGroupNode(nodeId)) {\n                /*\n                 * we are moving a group so we need to update transitions that\n                 * go into the group\n                 */\n                const groupIdWeAreMoving = nodeId;\n                const groupThatTransitionsToGroupWeAreMoving = node;\n                this.updateChildrenTransitionsIntoGroupWeAreMoving(groupThatTransitionsToGroupWeAreMoving, groupIdWeAreMoving);\n              }\n            }\n          }\n\n          if (this.isBranchPoint(nodeId)) {\n            /*\n             * the node we are deleting is a branch point so we to\n             * copy the transition logic to the node that comes\n             * before it\n             */\n            node.transitionLogic = this.UtilService.makeCopyOfJSONObject(nodeToRemoveTransitionLogic);\n\n            /*\n             * set the transitions for the node that comes before\n             * the one we are removing\n             */\n            node.transitionLogic.transitions = transitions;\n          }\n        }\n      }\n    }\n\n    if (nodeToRemoveTransitionLogic != null) {\n      nodeToRemoveTransitionLogic.transitions = [];\n    }\n\n    if (this.isGroupNode(nodeId)) {\n      /*\n       * this is a group node so we will remove all child transitions that\n       * go out of this group\n       */\n      this.removeTransitionsOutOfGroup(nodeId);\n    }\n  };\n\n  /**\n   * Remove the node id from a group\n   * @param nodeId the node id to remove\n   */\n  removeNodeIdFromGroups(nodeId) {\n    const groups = this.getGroupNodes();\n    for (let group of groups) {\n      this.removeNodeIdFromGroup(group, nodeId);\n    }\n    const inactiveGroups = this.getInactiveGroupNodes();\n    for (let inactiveGroup of inactiveGroups) {\n      this.removeNodeIdFromGroup(inactiveGroup, nodeId);\n    }\n  }\n\n  /**\n   * Remove a node id from a group.\n   * @param group The group to remove from.\n   * @param nodeId The node id to remove.\n   */\n  removeNodeIdFromGroup(group, nodeId) {\n    const startId = group.startId;\n    const ids = group.ids;\n    for (let i = 0; i < ids.length; i++) {\n      const id = ids[i];\n      if (nodeId === id) {\n        ids.splice(i, 1);\n\n        if (nodeId === startId) {\n          /*\n           * the node id is also the start id so we will get the\n           * next node id and set it as the new start id\n           */\n\n          let hasSetNewStartId = false;\n\n          const node = this.getNodeById(id);\n\n          if (node != null) {\n            const transitionLogic = node.transitionLogic;\n            if (transitionLogic != null) {\n              const transitions = transitionLogic.transitions;\n              if (transitions != null && transitions.length > 0) {\n                // get the first transition\n                // TODO handle the case when the node we are removing is a branch point\n                const transition = transitions[0];\n\n                if (transition != null) {\n                  const to = transition.to;\n\n                  if (to != null) {\n                    group.startId = to;\n                    hasSetNewStartId = true;\n                  }\n                }\n              }\n            }\n          }\n\n          if (!hasSetNewStartId) {\n            /*\n             * the node we are removing did not have a transition\n             * so there will be no start id\n             */\n            group.startId = '';\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the array of nodes\n   * @param nodeId the node id to remove\n   */\n  removeNodeIdFromNodes(nodeId) {\n    const nodes = this.project.nodes;\n    for (let n = 0; n < nodes.length; n++) {\n      const node = nodes[n];\n      if (node != null) {\n        if (nodeId === node.id) {\n          nodes.splice(n, 1);\n        }\n      }\n    }\n\n    const inactiveNodes = this.project.inactiveNodes;\n    if (inactiveNodes != null) {\n      for (let i = 0; i < inactiveNodes.length; i++) {\n        const inactiveNode = inactiveNodes[i];\n        if (inactiveNode != null) {\n          if (nodeId === inactiveNode.id) {\n            inactiveNodes.splice(i, 1);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the inactive nodes array\n   * @param nodeId the node to remove from the inactive nodes array\n   */\n  removeNodeIdFromInactiveNodes(nodeId) {\n    const inactiveNodes = this.project.inactiveNodes;\n\n    if (inactiveNodes != null) {\n      for (let i = 0; i < inactiveNodes.length; i++) {\n        const inactiveNode = inactiveNodes[i];\n        if (inactiveNode != null) {\n          const inactiveNodeId = inactiveNode.id;\n          if (nodeId === inactiveNodeId) {\n            /*\n             * we have found the node we are looking for so we will\n             * remove it\n             */\n            inactiveNodes.splice(i, 1);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Create a new component\n   * @param nodeId the node id to create the component in\n   * @param componentType the component type\n   * @param insertAfterComponentId Insert the new compnent after the given\n   * component id. If this argument is null, we will place the new component\n   * in the first position.\n   */\n  createComponent(nodeId, componentType, insertAfterComponentId) {\n    let component = null;\n    if (nodeId != null && componentType != null) {\n      // get the node we will create the component in\n      const node = this.getNodeById(nodeId);\n\n      // get the service for the component type\n      const service = this.$injector.get(componentType + 'Service');\n\n      if (node != null && service != null) {\n        // create the new component\n        component = service.createComponent();\n\n        if (service.componentHasWork()) {\n          /*\n           * the component has student work so we will need to\n           * determine if we need to show the save button on the\n           * component or the step\n           */\n\n          if (node.showSaveButton == true) {\n            /*\n             * the step is showing a save button so we will not show\n             * the save button on this new component\n             */\n          } else {\n            // the step is not showing a save button\n\n            if (this.doesAnyComponentShowSubmitButton(node.id)) {\n              /*\n               * at least one of the other components in the step are\n               * showing a submit button so we will also show the save\n               * button on this new component\n               */\n\n              // turn on the component save button\n              component.showSaveButton = true;\n            } else {\n              /*\n               * none of the other components are showing a submit button\n               * so we will show the save button on the step\n               */\n\n              // turn on the step save button\n              node.showSaveButton = true;\n            }\n          }\n        }\n\n        // add the component to the node\n        this.addComponentToNode(node, component, insertAfterComponentId);\n      }\n    }\n    return component;\n  }\n\n  /**\n   * Does any component in the step generate work\n   * @param nodeId the node id\n   * @return whether any components in the step generates work\n   */\n  doesAnyComponentHaveWork(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            const componentType = component.type;\n            const service = this.$injector.get(componentType + 'Service');\n            if (service != null) {\n              if (service.componentHasWork()) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if any of the components in the node are showing their save button\n   * @param nodeId the node id to check\n   * @return whether any of the components in the node show their save button\n   */\n  doesAnyComponentShowSaveButton(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            if (component.showSaveButton == true) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if any of the components in the node are showing their submit button\n   * @param nodeId the node id to check\n   * @return whether any of the components in the node show their submit button\n   */\n  doesAnyComponentShowSubmitButton(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            if (component.showSubmitButton == true) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Turn on the save button in all the components in the step\n   * @param nodeId the node id\n   */\n  turnOnSaveButtonInComponents(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            const componentType = component.type;\n            if (componentType != null) {\n              const service = this.$injector.get(componentType + 'Service');\n              if (service != null) {\n                if (service.componentUsesSaveButton()) {\n                  component.showSaveButton = true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Turn off the submit button in all the components in the step\n   * @param nodeId the node id\n   */\n  turnOffSaveButtonInComponents(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            const componentType = component.type;\n            if (componentType != null) {\n              const service = this.$injector.get(componentType + 'Service');\n              if (service != null) {\n                if (service.componentUsesSaveButton()) {\n                  component.showSaveButton = false;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Add the component to the node\n   * @param node the node\n   * @param component the component\n   * @param insertAfterComponentId Insert the component after this given\n   * component id. If this argument is null, we will place the new component\n   * in the first position.\n   */\n  addComponentToNode(node, component, insertAfterComponentId) {\n    if (node != null && component != null) {\n      if (insertAfterComponentId == null) {\n        /*\n         * insertAfterComponentId is null so we will place the new\n         * component in the first position\n         */\n        node.components.splice(0, 0, component);\n      } else {\n        // place the new component after the insertAfterComponentId\n\n        // boolean flag for whether we have added the component yet\n        let added = false;\n\n        const components = node.components;\n        for (let c = 0; c < components.length; c++) {\n          const tempComponent = components[c];\n          if (tempComponent != null && tempComponent.id != null &&\n              tempComponent.id == insertAfterComponentId) {\n            /*\n             * we have found the component we want to add the new\n             * one after\n             */\n\n            // add the component\n            components.splice(c + 1, 0, component);\n            added = true;\n            break;\n          }\n        }\n\n        if (!added) {\n          /*\n           * the component has not been added yet so we will just add\n           * it at the end\n           */\n          node.components.push(component);\n        }\n      }\n    }\n  }\n\n  /**\n   * Move the component(s) within the node\n   * @param nodeId we are moving component(s) in this node\n   * @param componentIds the component(s) we are moving\n   * @param insertAfterComponentId Insert the component(s) after this given\n   * component id. If this argument is null, we will place the new\n   * component(s) in the first position.\n   */\n  moveComponent(nodeId, componentIds, insertAfterComponentId) {\n    // get the node for which we are moving components\n    const node = this.getNodeById(nodeId);\n\n    const components = node.components;\n    const componentsToMove = [];\n\n    // remove the component(s)\n    for (let a = components.length - 1; a >= 0; a--) {\n      const tempComponent = components[a];\n      if (tempComponent != null) {\n        if (componentIds.indexOf(tempComponent.id) != -1) {\n          // we have found a component we want to move\n\n          // add the component to our array of components we are moving\n          componentsToMove.splice(0, 0, tempComponent);\n\n          // remove the component from the components array in the node\n          components.splice(a, 1);\n        }\n      }\n    }\n\n    // insert the component(s)\n    if (insertAfterComponentId == null) {\n      // insert the components at the beginning of the components list\n\n      for (let c = 0; c < componentsToMove.length; c++) {\n        // insert a component\n        components.splice(c, 0, componentsToMove[c]);\n      }\n    } else {\n      // insert the component(s) after the given insertAfterComponentId\n\n      for (let b = 0; b < components.length; b++) {\n        const tempComponent = components[b];\n        if (tempComponent != null && tempComponent.id == insertAfterComponentId) {\n          // we have found the component we want to add after\n\n          for (let c = 0; c < componentsToMove.length; c++) {\n            // insert a component\n            components.splice(b + 1 + c, 0, componentsToMove[c]);\n          }\n          break;\n        }\n      }\n    }\n    return componentsToMove;\n  }\n\n  /**\n   * Delete the component\n   * @param nodeId the node id\n   * @param componentId the component id\n   */\n  deleteComponent(nodeId, componentId) {\n    if (nodeId != null && componentId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        const components = node.components;\n        if (components != null) {\n          for (let c = 0; c < components.length; c++) {\n            const component = components[c];\n            if (component.id === componentId) {\n              // we have found the component we want to delete\n\n              // remove the component\n              components.splice(c, 1);\n              break;\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * TODO: Deprecated, should be removed; replaced by getMaxScoreForWorkgroupId in StudentStatusService\n   * Get the max score for the project. If the project contains branches, we\n   * will only calculate the max score for a single path from the first node\n   * to the last node in the project.\n   * @returns the max score for the project or null if none of the components in the project\n   * has max scores.\n   */\n  getMaxScore() {\n    let maxScore = null;\n    const startNodeId = this.getStartNodeId();\n\n    // get all the paths in the project\n    const allPaths = this.getAllPaths([], startNodeId);\n\n    if (allPaths != null && allPaths.length > 0) {\n      const firstPath = allPaths[0];\n      for (let nodeId of firstPath) {\n        const nodeMaxScore = this.getMaxScoreForNode(nodeId);\n        if (nodeMaxScore != null) {\n          if (maxScore == null) {\n            maxScore = nodeMaxScore;\n          } else {\n            maxScore += nodeMaxScore;\n          }\n        }\n      }\n    }\n    return maxScore;\n  }\n\n  /**\n   * Get the max score for the node\n   * @param nodeId the node id\n   * @returns the max score for the node\n   */\n  getMaxScoreForNode(nodeId) {\n    let maxScore = null;\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            const componentMaxScore = component.maxScore;\n\n            // check if the component has a max score\n            if (componentMaxScore != null) {\n              // make sure the max score is a valid number\n              if (!isNaN(componentMaxScore)) {\n                if (maxScore == null) {\n                  maxScore = componentMaxScore;\n                } else {\n                  // accumulate the max score\n                  maxScore += componentMaxScore;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return maxScore;\n  }\n\n  /**\n   * Get the max score for a component\n   * @param nodeId get the max score from a component in this node\n   * @param componentId get the max score from this component\n   */\n  getMaxScoreForComponent(nodeId, componentId) {\n    const component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null) {\n      return component.maxScore;\n    }\n    return null;\n  }\n\n  /**\n   * Set the max score for a component\n   * @param nodeId set the max score from a component in this node\n   * @param componentId set the max score from this component\n   * @param maxScore set it to this maxScore\n   */\n  setMaxScoreForComponent(nodeId, componentId, maxScore) {\n    if (nodeId != null && componentId != null && maxScore != null && typeof maxScore === 'number') {\n      let component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n      if (component != null) {\n        component.maxScore = maxScore;\n      }\n    }\n  }\n\n  /**\n   * Determine if a node id is a direct child of a group\n   * @param nodeId the node id\n   * @param groupId the group id\n   */\n  isNodeInGroup(nodeId, groupId) {\n    const group = this.getNodeById(groupId);\n    const childIds = group.ids;\n    if (childIds != null) {\n      if (childIds.indexOf(nodeId) != -1) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the first leaf node by traversing all the start ids\n   * until a leaf node id is found\n   */\n  getFirstLeafNodeId() {\n    let firstLeafNodeId = null;\n    const startGroupId = this.project.startGroupId;\n    let node = this.getNodeById(startGroupId);\n    let done = false;\n\n    // loop until we have found a leaf node id or something went wrong\n    while (!done) {\n      if (node == null) {\n        done = true;\n      } else if (this.isGroupNode(node.id)) {\n        // set the first leaf node id to the group id for now\n        firstLeafNodeId = node.id;\n\n        node = this.getNodeById(node.startId);\n      } else if (this.isApplicationNode(node.id)) {\n        // the current node is a leaf\n        firstLeafNodeId = node.id;\n        done = true;\n      } else {\n        done = true;\n      }\n    }\n    return firstLeafNodeId;\n  }\n\n  /**\n   * Replace a node. This is used when we want to revert a node back to a\n   * previous version in the authoring tool.\n   * @param nodeId the node id\n   * @param node the node object\n   */\n  replaceNode(nodeId, node) {\n    if (nodeId != null && node != null) {\n      this.setIdToNode(nodeId, node);\n      this.setIdToElement(nodeId, node);\n      const nodes = this.getNodes();\n      if (nodes != null) {\n        for (let n = 0; n < nodes.length; n++) {\n          const tempNode = nodes[n];\n          if (tempNode != null) {\n            const tempNodeId = tempNode.id;\n            if (nodeId === tempNodeId) {\n              nodes.splice(n, 1, node);\n              break;\n            }\n          }\n        }\n      }\n\n      const applicationNodes = this.applicationNodes;\n      if (applicationNodes != null) {\n        for (let a = 0; a < applicationNodes.length; a++) {\n          const tempApplicationNode = applicationNodes[a];\n          if (tempApplicationNode != null) {\n            const tempApplicationNodeId = tempApplicationNode.id;\n            if (nodeId === tempApplicationNodeId) {\n              applicationNodes.splice(a, 1, node);\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if a node is a planning node\n   * @param nodeId the node id\n   * @returns whether the node is a planning node\n   */\n  isPlanning(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        if (node.planning) {\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if a node is a planning node instance\n   * @param nodeId the node id\n   * @returns whether the node is a planning node instance\n   */\n  isPlanningInstance(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node.planningNodeTemplateId) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the available planning node ids for a node\n   * @param nodeId the node we want available planning nodes for\n   * @returns an array of available planning node ids\n   */\n  getAvailablePlanningNodeIds(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null && node.availablePlanningNodeIds != null) {\n        return node.availablePlanningNodeIds;\n      }\n    }\n    return [];\n  }\n\n  /**\n   * Get the available planning nodes for a given group\n   * @param nodeId the node id of the group\n   * @returns an array of planning node templates\n   */\n  getAvailablePlanningNodes(nodeId) {\n    const availablePlanningNodesSoFar = [];\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null && node.availablePlanningNodes != null) {\n        let availablePlanningNodes = node.availablePlanningNodes;\n        for (let availablePlanningNode of availablePlanningNodes) {\n          if (availablePlanningNode != null) {\n            const availablePlanningNodeActual =\n                this.getNodeById(availablePlanningNode.nodeId);\n            if (availablePlanningNodeActual != null) {\n              if (availablePlanningNode.max != null) {\n                availablePlanningNodeActual.max = availablePlanningNode.max;\n              }\n              availablePlanningNodesSoFar.push(availablePlanningNodeActual);\n            }\n          }\n        }\n      }\n    }\n    return availablePlanningNodesSoFar;\n  }\n\n  /**\n   * Create a planning node instance and add it to the project\n   * @param groupId the group id to add the planning node instance to\n   * @param nodeId the node id of the planning node template\n   */\n  createPlanningNodeInstance(groupId, nodeId, nextAvailablePlanningNodeId) {\n    let planningNodeInstance = null;\n    if (nodeId != null && nextAvailablePlanningNodeId != null) {\n      // create a planning node instance by copying the planning node template\n      planningNodeInstance = this.copyNode(nodeId);\n\n      // set the template id to point back to the planning template node\n      planningNodeInstance.planningNodeTemplateId = nodeId;\n\n      // set the planning node instance node id\n      planningNodeInstance.id = nextAvailablePlanningNodeId;\n    }\n    return planningNodeInstance;\n  }\n\n  /**\n   * Add a planning node instance inside a group node\n   * @param nodeIdToInsertInside the group id to insert into\n   * @param planningNodeInstance the planning node instance to add\n   */\n  addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance) {\n    const planningNodeInstanceNodeId = planningNodeInstance.id;\n\n    // add an entry in our mapping data structures of node id to object\n    this.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);\n    this.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);\n\n    // add the node to the nodes array in the project\n    this.addNode(planningNodeInstance);\n\n    // update the transitions\n    this.insertNodeInsideInTransitions(planningNodeInstanceNodeId, nodeIdToInsertInside);\n\n    // update the child ids of the group\n    this.insertNodeInsideInGroups(planningNodeInstanceNodeId, nodeIdToInsertInside);\n\n    // recalculate all the position values in the group\n    this.recalculatePositionsInGroup(nodeIdToInsertInside);\n\n    /*\n     * set the order of the planning node instance so that it shows up\n     * in the select step drop down in the correct order\n     */\n    this.setNodeOrder(this.rootNode, 0);\n  }\n\n  /**\n   * Add a planning node instance after a node\n   * @param nodeIdToInsertAfter the node to insert after\n   * @param planningNodeInstance the planning node instance to add\n   */\n  addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance) {\n    const planningNodeInstanceNodeId = planningNodeInstance.id;\n\n    // add an entry in our mapping data structures of node id to object\n    this.setIdToNode(planningNodeInstanceNodeId, planningNodeInstance);\n    this.setIdToElement(planningNodeInstanceNodeId, planningNodeInstance);\n\n    // add the node to the nodes array in the project\n    this.addNode(planningNodeInstance);\n\n    // update the transitions\n    this.insertNodeAfterInTransitions(planningNodeInstance, nodeIdToInsertAfter);\n\n    // update the child ids of the group\n    this.insertNodeAfterInGroups(planningNodeInstanceNodeId, nodeIdToInsertAfter);\n\n    const parentGroup = this.getParentGroup(nodeIdToInsertAfter);\n\n    if (parentGroup != null) {\n      const parentGroupId = parentGroup.id;\n\n      // recalculate all the position values in the group\n      this.recalculatePositionsInGroup(parentGroupId);\n    }\n\n    /*\n     * set the order of the planning node instance so that it shows up\n     * in the select step drop down in the correct order\n     */\n    this.setNodeOrder(this.rootNode, 0);\n  }\n\n  /**\n   * Move a planning node instance inside a group\n   * @param nodeIdToMove the node to move\n   * @param nodeIdToInsertInside the group to move the node into\n   */\n  movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToInsertInside) {\n    this.moveNodesInside([nodeIdToMove], nodeIdToInsertInside);\n    this.recalculatePositionsInGroup(nodeIdToInsertInside);\n\n    /*\n     * set the order of the planning node instance so that it shows up\n     * in the select step drop down in the correct order\n     */\n    this.setNodeOrder(this.rootNode, 0);\n  }\n\n  /**\n   * Move a planning node instance after a node\n   * @param nodeIdToMove the node to move\n   * @param nodeIdToInsertAfter the other node to move the node after\n   */\n  movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToInsertAfter) {\n    this.moveNodesAfter([nodeIdToMove], nodeIdToInsertAfter);\n    const parentGroup = this.getParentGroup(nodeIdToInsertAfter);\n\n    if (parentGroup != null) {\n      const parentGroupId = parentGroup.id;\n      this.recalculatePositionsInGroup(parentGroupId);\n    }\n\n    /*\n     * set the order of the planning node instance so that it shows up\n     * in the select step drop down in the correct order\n     */\n    this.setNodeOrder(this.rootNode, 0);\n  }\n\n  /**\n   * Recalculate the positions of the children in the group.\n   * The positions are the numbers usually seen before the title\n   * e.g. if the step is seen as 1.3: Gather Evidence, then 1.3\n   * is the position\n   * @param groupId recalculate all the children of this group\n   */\n  recalculatePositionsInGroup(groupId) {\n    if (groupId != null) {\n      let childIds = this.getChildNodeIdsById(groupId);\n      for (let childId of childIds) {\n        let pos = this.getPositionById(childId);\n        this.setIdToPosition(childId, pos);\n      }\n    }\n  }\n\n  /**\n   * Get the message that describes how to disable the constraint\n   * @param nodeId the node the student is trying to go to\n   * @param constraint the constraint that is preventing the student\n   * from going to the node\n   * @returns the message to display to the student that describes how\n   * to disable the constraint\n   */\n  getConstraintMessage(nodeId, constraint) {\n    let message = '';\n\n    if (nodeId != null && constraint != null) {\n      // get the node title the student is trying to go to\n      const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n\n      const removalConditional = constraint.removalConditional;\n      const removalCriteria = constraint.removalCriteria;\n\n      if (removalCriteria != null) {\n        let criteriaMessages = '';\n        for (let tempRemovalCriteria of removalCriteria) {\n          if (tempRemovalCriteria != null) {\n            // get the message that describes the criteria that needs to be satisfied\n            const criteriaMessage = this.getCriteriaMessage(tempRemovalCriteria);\n\n            if (criteriaMessage != null && criteriaMessage != '') {\n              // separate criteria messages with a line break\n              if (criteriaMessages != '') {\n                criteriaMessages += '<br/>';\n              }\n              criteriaMessages += criteriaMessage;\n            }\n          }\n        }\n        message += criteriaMessages;\n      }\n    }\n    return message;\n  }\n\n  /**\n   * Get the human readable description of the constraint.\n   * @param constraint The constraint object.\n   * @returns A human readable text string that describes the constraint.\n   * example\n   * 'All steps after this one will not be visitable until the student completes \"3.7 Revise Your Bowls Explanation\"'\n   */\n  getConstraintDescription(constraint) {\n    let message = '';\n    let action = constraint.action;\n    let actionMessage = this.getActionMessage(action);\n    for (let singleRemovalCriteria of constraint.removalCriteria) {\n      if (message != '') {\n        // this constraint has multiple removal criteria\n        if (constraint.removalConditional == 'any') {\n          message += ' or ';\n        } else if (constraint.removalConditional == 'all') {\n          message += ' and ';\n        }\n      }\n      message += this.getCriteriaMessage(singleRemovalCriteria);\n    }\n    message = actionMessage + message;\n    return message;\n  }\n\n  /**\n   * Get the constraint action as human readable text.\n   * @param action A constraint action.\n   * @return A human readable text string that describes the action\n   * example\n   * 'All steps after this one will not be visitable until '\n   */\n  getActionMessage(action) {\n    if (action == 'makeAllNodesAfterThisNotVisitable') {\n      return this.$translate('allStepsAfterThisOneWillNotBeVisitableUntil');\n    } else if (action == 'makeAllNodesAfterThisNotVisible') {\n      return this.$translate('allStepsAfterThisOneWillNotBeVisibleUntil');\n    } else if (action == 'makeAllOtherNodesNotVisitable') {\n      return this.$translate('allOtherStepsWillNotBeVisitableUntil');\n    } else if (action == 'makeAllOtherNodesNotVisible') {\n      return this.$translate('allOtherStepsWillNotBeVisibleUntil');\n    } else if (action == 'makeThisNodeNotVisitable') {\n      return this.$translate('thisStepWillNotBeVisitableUntil');\n    } else if (action == 'makeThisNodeNotVisible') {\n      return this.$translate('thisStepWillNotBeVisibleUntil');\n    }\n  }\n\n  /**\n   * Get the message that describes how to satisfy the criteria\n   * TODO: check if the criteria is satisfied\n   * @param criteria the criteria object that needs to be satisfied\n   * @returns the message to display to the student that describes how to\n   * satisfy the criteria\n   */\n  getCriteriaMessage(criteria) {\n    let message = '';\n\n    if (criteria != null) {\n      const name = criteria.name;\n      const params = criteria.params;\n\n      if (name === 'isCompleted') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('completeNodeTitle', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'isVisited') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('visitNodeTitle', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'isCorrect') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('correctlyAnswerNodeTitle', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'score') {\n        const nodeId = params.nodeId;\n        let nodeTitle = '';\n        let scoresString = '';\n\n        if (nodeId != null) {\n          nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n        }\n\n        const scores = params.scores;\n        if (scores != null) {\n          // get the required score\n          scoresString = scores.join(', ');\n        }\n\n        // generate the message\n        message += this.$translate('obtainAScoreOfXOnNodeTitle', { score: scoresString, nodeTitle: nodeTitle });\n      } else if (name === 'choiceChosen') {\n        const nodeId = params.nodeId;\n        const componentId = params.componentId;\n        const choiceIds = params.choiceIds;\n        let nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n        let choices = this.getChoiceTextByNodeIdAndComponentId(nodeId, componentId, choiceIds);\n        let choiceText = choices.join(', ');\n        message += this.$translate('chooseChoiceOnNodeTitle', { choiceText: choiceText, nodeTitle: nodeTitle });\n      } else if (name === 'usedXSubmits') {\n        const nodeId = params.nodeId;\n        let nodeTitle = '';\n\n        // get the number of times the student must submit\n        const requiredSubmitCount = params.requiredSubmitCount;\n\n        if (nodeId != null) {\n          // get the step number and title\n          nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n        }\n\n        // generate the message\n        if (requiredSubmitCount == 1) {\n          message += this.$translate('submitXTimeOnNodeTitle', { requiredSubmitCount: requiredSubmitCount, nodeTitle: nodeTitle });\n        } else {\n          message += this.$translate('submitXTimesOnNodeTitle', { requiredSubmitCount: requiredSubmitCount, nodeTitle: nodeTitle });\n        }\n      } else if (name === 'branchPathTaken') {\n        const fromNodeId = params.fromNodeId;\n        const fromNodeTitle = this.getNodePositionAndTitleByNodeId(fromNodeId);\n        const toNodeId = params.toNodeId;\n        const toNodeTitle = this.getNodePositionAndTitleByNodeId(toNodeId);\n        message += this.$translate('branchPathTakenFromTo', { fromNodeTitle: fromNodeTitle, toNodeTitle: toNodeTitle });\n      } else if (name === 'isPlanningActivityCompleted') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('completeNodeTitle', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'wroteXNumberOfWords') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const requiredNumberOfWords = params.requiredNumberOfWords;\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('writeXNumberOfWordsOnNodeTitle',\n              { requiredNumberOfWords: requiredNumberOfWords, nodeTitle: nodeTitle });\n        }\n      } else if (name === 'isVisible') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('nodeTitleIsVisible', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'isVisitable') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('nodeTitleIsVisitable', { nodeTitle: nodeTitle });\n        }\n      }\n    }\n    return message;\n  }\n\n  /**\n   * Get the choices of a Multiple Choice component.\n   * @param nodeId The node id.\n   * @param componentId The component id.\n   * @return The choices from the component.\n   */\n  getChoicesByNodeIdAndComponentId(nodeId, componentId) {\n    let choices = [];\n    let component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null && component.choices != null) {\n      choices = component.choices;\n    }\n    return choices;\n  }\n\n  /**\n   * Get the choice text for the given choice ids of a multiple choice component.\n   * @param nodeId The node id of the component.\n   * @param componentId The component id of the component.\n   * @param choiceIds An array of choice ids.\n   * @return An array of choice text strings.\n   */\n  getChoiceTextByNodeIdAndComponentId(nodeId, componentId, choiceIds) {\n    let choices = this.getChoicesByNodeIdAndComponentId(nodeId, componentId);\n    let choicesText = [];\n    for (let choice of choices) {\n      if (choiceIds.indexOf(choice.id) != -1) {\n        choicesText.push(choice.text);\n      }\n    }\n    return choicesText;\n  }\n\n  /**\n   * Get the start id of a group\n   * @param nodeId get the start id of this group\n   * @returns the start id of the group\n   */\n  getGroupStartId(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n\n      if (node != null) {\n        return node.startId;\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the start id of the node's parent group\n   * @param nodeId we will get the parent of this node and then look\n   * for the start id of the parent\n   * @returns the start id of the parent\n   */\n  getParentGroupStartId(nodeId) {\n    if (nodeId != null) {\n      const parentGroup = this.getParentGroup(nodeId);\n      if (parentGroup != null) {\n        return parentGroup.startId;\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Update the transitions so that the fromGroup points to the newToGroup\n   *\n   * Before\n   * fromGroup -> oldToGroup -> newToGroup\n   *\n   * After\n   * fromGroup -> newToGroup\n   * oldToGroup becomes dangling and has no transitions to or from it\n   */\n  updateTransitionsForExtractingGroup(fromGroupId, oldToGroupId, newToGroupId) {\n    /*\n     * make the transitions\n     * fromGroup -> newToGroup\n     */\n    if (fromGroupId != null && oldToGroupId != null) {\n      const fromGroup = this.getNodeById(fromGroupId);\n      const oldToGroup = this.getNodeById(oldToGroupId);\n      let newToGroup = null;\n      let newToGroupStartId = null;\n\n      if (newToGroupId != null) {\n        newToGroup = this.getNodeById(newToGroupId);\n      }\n\n      if (newToGroup != null) {\n        newToGroupStartId = newToGroup.startId;\n      }\n\n      if (fromGroup != null && oldToGroup != null) {\n        const childIds = fromGroup.ids;\n\n        // update the children of the from group to point to the new to group\n        if (childIds != null) {\n          for (let childId of childIds) {\n            const child = this.getNodeById(childId);\n            const transitions = this.getTransitionsByFromNodeId(childId);\n\n            if (transitions != null) {\n              for (let t = 0; t < transitions.length; t++) {\n                const transition = transitions[t];\n                if (transition != null) {\n                  const toNodeId = transition.to;\n                  if (toNodeId === oldToGroupId) {\n                    // the transition is to the group\n                    if (newToGroupId == null && newToGroupStartId == null) {\n                      // there is no new to group so we will remove the transition\n                      transitions.splice(t, 1);\n                      t--;\n                    } else {\n                      // make the transition point to the new to group\n                      transition.to = newToGroupId;\n                    }\n                  } else if (this.isNodeInGroup(toNodeId, oldToGroupId)) {\n                    // the transition is to a node in the group\n                    if (newToGroupId == null && newToGroupStartId == null) {\n                      // there is no new to group so we will remove the transition\n                      transitions.splice(t, 1);\n                      t--;\n                    } else if (newToGroupStartId == null || newToGroupStartId == '') {\n                      // make the transition point to the new to group\n                      transition.to = newToGroupId;\n                    } else {\n                      // make the transition point to the new group start id\n                      transition.to = newToGroupStartId;\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    /*\n     * remove the transitions from the oldToGroup\n     */\n    if (oldToGroupId != null && newToGroupId != null) {\n      const oldToGroup = this.getNodeById(oldToGroupId);\n      if (oldToGroup != null) {\n        const childIds = oldToGroup.ids;\n\n        // remove the transitions from the old to group that point to the new to group\n        if (childIds != null) {\n          for (let childId of childIds) {\n            const child = this.getNodeById(childId);\n            const transitions = this.getTransitionsByFromNodeId(childId);\n            if (transitions != null) {\n              for (let t = 0; t < transitions.length; t++) {\n                const transition = transitions[t];\n                if (transition != null) {\n                  const toNodeId = transition.to;\n                  if (toNodeId === newToGroupId) {\n                    // the transition is to the group so we will remove it\n                    transitions.splice(t, 1);\n                    t--;\n                  } else if (this.isNodeInGroup(toNodeId, newToGroupId)) {\n                    // the transition is to a node in the group so we will remove it\n                    transitions.splice(t, 1);\n                    t--;\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Update the transitions so that the fromGroup points to the newToGroup\n   *\n   * Before\n   * fromGroup -> oldToGroup\n   * newToGroup is dangling and has no transitions to or from it\n   *\n   * After\n   * fromGroup -> newToGroup -> oldToGroup\n   */\n  updateTransitionsForInsertingGroup(fromGroupId, oldToGroupIds, newToGroupId) {\n    let fromGroup = null;\n    let newToGroup = null;\n    if (fromGroupId != null) {\n      fromGroup = this.getNodeById(fromGroupId);\n    }\n\n    if (newToGroupId != null) {\n      newToGroup = this.getNodeById(newToGroupId);\n    }\n\n    /*\n     * make the transitions that point to the old group now point\n     * to the new group\n     * fromGroup -> newToGroup\n     */\n    if (fromGroup != null && newToGroup != null) {\n      const childIds = fromGroup.ids;\n      const newToGroupStartId = newToGroup.startId;\n      if (childIds != null) {\n        for (let childId of childIds) {\n          const child = this.getNodeById(childId);\n\n          // get the transitions from the child\n          const transitions = this.getTransitionsByFromNodeId(childId);\n\n          if (transitions == null || transitions.length == 0) {\n            /*\n             * the child does not have any transitions so we will make it\n             * point to the new group\n             */\n            if (newToGroupStartId == null || newToGroupStartId == '') {\n              this.addToTransition(child, newToGroupId);\n            } else {\n              this.addToTransition(child, newToGroupStartId)\n            }\n          } else if (transitions != null) {\n            for (let transition of transitions) {\n              if (transition != null) {\n                const toNodeId = transition.to;\n                if (oldToGroupIds != null) {\n                  for (let oldToGroupId of oldToGroupIds) {\n                    if (toNodeId === oldToGroupId) {\n                      /*\n                       * the transition is to the group so we will update the transition\n                       * to the new group\n                       */\n                      transition.to = newToGroupId;\n                    } else if (this.isNodeInGroup(toNodeId, oldToGroupId)) {\n                      /*\n                       * the transition is to a node in the old group so we will update\n                       * the transition to point to the new group\n                       */\n                      if (newToGroupStartId == null || newToGroupStartId == '') {\n                        transition.to = newToGroupId;\n                      } else {\n                        transition.to = newToGroupStartId;\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    /*\n     * make the steps that do not have a transition now point to the old\n     * group\n     * newToGroup -> oldToGroup\n     */\n    if (newToGroup != null) {\n      const childIds = newToGroup.ids;\n      if (childIds != null) {\n        for (let childId of childIds) {\n          const child = this.getNodeById(childId);\n          const transitions = this.getTransitionsByFromNodeId(childId);\n\n          if (transitions == null || transitions.length == 0) {\n            if (oldToGroupIds != null) {\n              for (let oldToGroupId of oldToGroupIds) {\n                const oldToGroup = this.getNodeById(oldToGroupId);\n                if (oldToGroup != null) {\n                  const oldToGroupStartId = oldToGroup.startId;\n                  const transition = {};\n                  let toNodeId = '';\n                  if (oldToGroupStartId == null) {\n                    // there is no start node id so we will just point to the group\n                    toNodeId = oldToGroup;\n                  } else {\n                    // there is a start node id so we will point to it\n                    toNodeId = oldToGroupStartId;\n                  }\n\n                  // create the transition from the child to the old group\n                  this.addToTransition(child, toNodeId);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Update the child transitions because we are moving a group. We will\n   * update the transitions into and out of the group in the location\n   * we are extracting the group from and also in the location we are\n   * inserting the group into.\n   * @param node the group we are moving\n   * @param nodeId we will put the group after this node id\n   */\n  updateChildrenTransitionsForMovingGroup(node, nodeId) {\n    let transitionsBefore = null;\n\n    // get the group nodes that point to the group we are moving\n    const previousGroupNodes = this.getGroupNodesByToNodeId(node.id);\n\n    // get all the transitions from the group we are moving\n    const transitionsAfter = this.getTransitionsByFromNodeId(node.id);\n\n    let extracted = false;\n\n    /*\n     * extract the group we are moving by updating the transitions of the\n     * from group and the new to group. also remove the transitions from the\n     * group we are moving.\n     */\n\n    for (let previousGroupNode of previousGroupNodes) {\n      if (transitionsAfter == null || transitionsAfter.length == 0) {\n        // the group we are moving does not have any transitions\n\n        /*\n         * remove the transitions to the group we are moving and make\n         * new transitions from the from group to the new to group\n         */\n        this.updateTransitionsForExtractingGroup(previousGroupNode.id, node.id, null);\n        extracted = true;\n      } else {\n        // the group we are moving has transitions\n\n        // make the previous group point to the new to group\n        for (let transitionAfter of transitionsAfter) {\n          if (transitionAfter != null) {\n            const toNodeId = transitionAfter.to;\n\n            /*\n             * remove the transitions to the group we are moving and make\n             * new transitions from the from group to the new to group\n             */\n            this.updateTransitionsForExtractingGroup(previousGroupNode.id, node.id, toNodeId);\n            extracted = true;\n          }\n        }\n      }\n    }\n\n    if (!extracted) {\n      /*\n       * we have not removed the transitions yet because the group\n       * we are moving does not have any groups before it\n       */\n\n      if (transitionsAfter != null) {\n        // remove the transitions from the group we are moving\n        for (let transitionAfter of transitionsAfter) {\n          if (transitionAfter != null) {\n            const toNodeId = transitionAfter.to;\n\n            // remove the transitions to the group we are moving\n            this.updateTransitionsForExtractingGroup(null, node.id, toNodeId);\n            extracted = true;\n          }\n        }\n      }\n    }\n\n    let inserted = false;\n\n    /*\n     * create the transitions from the from group to the group we are moving\n     * and the transitions from the group we are moving to the old to group\n     */\n    if (nodeId != null) {\n      // get the transitions from the previous group to the next group\n      const transitionsAfter = this.getTransitionsByFromNodeId(nodeId);\n\n      for (let transitionAfter of transitionsAfter) {\n        if (transitionAfter != null) {\n          const toNodeId = transitionAfter.to;\n\n          /*\n           * create the transitions that traverse from the from group\n           * to the group we are moving. also create the transitions\n           * that traverse from the group we are moving to the old\n           * to group.\n           */\n          this.updateTransitionsForInsertingGroup(nodeId, [toNodeId], node.id);\n          inserted = true;\n        }\n      }\n    }\n\n    if (!inserted) {\n      /*\n       * we have not inserted the transitions yet because there were no\n       * previous group transitions\n       */\n\n      if (nodeId == null) {\n        /*\n         * the previous node id is null which means there was no previous\n         * group. this means the group we are inserting will become the\n         * first group. this happens when the group we are moving\n         * is moved inside the root (group0).\n         */\n\n        const startGroupId = this.getStartGroupId();\n\n        if (startGroupId != null) {\n          // get the start group for the whole project (group0)\n          const startGroup = this.getNodeById(startGroupId);\n\n          if (startGroup != null) {\n            // get the first activity\n            const firstGroupId = startGroup.startId;\n\n            /*\n             * create the transitions that traverse from the group\n             * we are moving to the previous first activity.\n             */\n            this.updateTransitionsForInsertingGroup(nodeId, [firstGroupId], node.id);\n          }\n        }\n      } else {\n        /*\n         * we have not inserted the group yet because the from group doesn't\n         * have a group after it\n         */\n\n        /*\n         * create the transitions that traverse from the from group\n         * to the group we are moving.\n         */\n        this.updateTransitionsForInsertingGroup(nodeId, null, node.id);\n      }\n    }\n  }\n\n  /**\n   * Get the active nodes.\n   * @return An array of the active node objects.\n   */\n  getActiveNodes() {\n    return this.project.nodes;\n  }\n\n  /**\n   * Get the inactive nodes\n   * @returns the inactive nodes\n   */\n  getInactiveNodes() {\n    let inactiveNodes = [];\n    if (this.project != null) {\n      if (this.project.inactiveNodes == null) {\n        this.project.inactiveNodes = [];\n      }\n      inactiveNodes = this.project.inactiveNodes;\n    }\n    return inactiveNodes;\n  }\n\n  /**\n   * Remove the node from the active nodes\n   * @param nodeId the node to remove\n   * @returns the node that we have removed\n   */\n  removeNodeFromActiveNodes(nodeId) {\n    let node = null;\n    if (nodeId != null) {\n      const activeNodes = this.project.nodes;\n      if (activeNodes != null) {\n        for (let a = 0; a < activeNodes.length; a++) {\n          const activeNode = activeNodes[a];\n          if (activeNode != null) {\n            if (nodeId === activeNode.id) {\n              node = activeNode;\n\n              // remove the node from the array\n              activeNodes.splice(a, 1);\n\n              if (activeNode.type == 'group') {\n                this.removeChildNodesFromActiveNodes(activeNode);\n              }\n              break;\n            }\n          }\n        }\n      }\n    }\n    return node;\n  }\n\n  /**\n   * Move the child nodes of a group from the active nodes and put them into\n   * the inactive nodes.\n   * @param node The group node.\n   */\n  removeChildNodesFromActiveNodes(node) {\n    if (node != null) {\n      let childIds = node.ids;\n      for (let childId of childIds) {\n        this.removeNodeFromActiveNodes(childId);\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the inactive nodes array\n   * @param nodeId the node to remove\n   * @returns the node that was removed\n   */\n  removeNodeFromInactiveNodes(nodeId) {\n    let node = null;\n    if (nodeId != null) {\n      let parentGroup = this.getParentGroup(nodeId);\n      if (parentGroup != null) {\n        // The node has a parent so we will remove it from the parent.\n        this.removeChildFromParent(nodeId);\n      }\n\n      let inactiveNodes = this.project.inactiveNodes;\n      if (inactiveNodes != null) {\n        for (let i = 0; i < inactiveNodes.length; i++) {\n          let inactiveNode = inactiveNodes[i];\n          if (inactiveNode != null) {\n            if (nodeId === inactiveNode.id) {\n              node = inactiveNode;\n\n              // remove the node from the array\n              inactiveNodes.splice(i, 1);\n              break;\n            }\n          }\n        }\n      }\n      this.removeNodeFromInactiveStepNodes(nodeId);\n      this.removeNodeFromInactiveGroupNodes(nodeId);\n    }\n    return node;\n  }\n\n  /**\n   * Remove the child node from the parent group.\n   * @param nodeId The child node to remove from the parent.\n   */\n  removeChildFromParent(nodeId) {\n    let parentGroup = this.getParentGroup(nodeId);\n    if (parentGroup != null) {\n      // Remove the child from the parent\n      for (let i = 0; i < parentGroup.ids.length; i++) {\n        let childId = parentGroup.ids[i];\n        if (nodeId == childId) {\n          parentGroup.ids.splice(i, 1);\n          break;\n        }\n      }\n      if (nodeId == parentGroup.startId) {\n        /*\n         * The child we removed was the start id of the group so we\n         * will update the start id.\n         */\n        let startIdUpdated = false;\n        let transitions = this.getTransitionsByFromNodeId(nodeId);\n        if (transitions != null &&\n          transitions.length > 0 &&\n          transitions[0] != null &&\n          transitions[0].to != null) {\n          parentGroup.startId = transitions[0].to;\n          startIdUpdated = true;\n        }\n        if (!startIdUpdated && parentGroup.ids.length > 0) {\n          parentGroup.startId = parentGroup.ids[0];\n          startIdUpdated = true;\n        }\n        if (!startIdUpdated) {\n          parentGroup.startId = '';\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the inactive step nodes array.\n   * @param nodeId The node id of the node we want to remove from the\n   * inactive step nodes array.\n   */\n  removeNodeFromInactiveStepNodes(nodeId) {\n    for (let i = 0; i < this.inactiveStepNodes.length; i++) {\n      let inactiveStepNode = this.inactiveStepNodes[i];\n      if (nodeId == inactiveStepNode.id) {\n        this.inactiveStepNodes.splice(i, 1);\n        break;\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the inactive group nodes array.\n   * @param nodeId The node id of the group we want to remove from the\n   * inactive group nodes array.\n   */\n  removeNodeFromInactiveGroupNodes(nodeId) {\n    for (let i = 0; i < this.inactiveGroupNodes.length; i++) {\n      let inactiveGroupNode = this.inactiveGroupNodes[i];\n      if (nodeId == inactiveGroupNode.id) {\n        this.inactiveGroupNodes.splice(i, 1);\n        break;\n      }\n    }\n  }\n\n  /**\n   * Load the inactive nodes\n   * @param nodes the inactive nodes\n   */\n  loadInactiveNodes(nodes) {\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          const nodeId = node.id;\n\n          this.setIdToNode(nodeId, node);\n          this.setIdToElement(nodeId, node);\n          if (node.type == 'group') {\n            this.inactiveGroupNodes.push(node);\n          } else {\n            this.inactiveStepNodes.push(node);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if the node is active\n   * @param nodeId the node to check\n   * @param componentId (optional) the component to check\n   * @returns whether the node or component is active\n   */\n  isActive(nodeId, componentId) {\n    if (nodeId != null) {\n      if (nodeId === 'inactiveNodes') {\n        // this occurs when the author puts a step into the inactive nodes\n        return false;\n      } else if (nodeId === 'inactiveGroups') {\n        // this occurs when the author puts a group into the inactive groups\n        return false;\n      } else if (this.isGroupNode(nodeId)) {\n        return this.isGroupActive(nodeId);\n      } else {\n        // the node is a step node\n\n        const activeNodes = this.project.nodes;\n        if (activeNodes != null) {\n          for (let activeNode of activeNodes) {\n            if (activeNode != null) {\n              const activeNodeId = activeNode.id;\n              if (nodeId == activeNodeId) {\n                // we have found the node id we are looking for\n\n                if (componentId != null) {\n                  // we need to find the node id and component id\n\n                  const activeComponents = activeNode.components;\n\n                  if (activeComponents != null) {\n                    for (let activeComponent of activeComponents) {\n                      if (activeComponent != null) {\n                        const activeComponentId = activeComponent.id;\n                        if (componentId == activeComponentId) {\n                          /*\n                           * we have found the component id we are\n                           * looking for so we are done\n                           */\n                          return true;\n                        }\n                      }\n                    }\n                  }\n                } else {\n                  //we only need to find the node id so we are done\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if a group is active.\n   * @param nodeId the node id of the group\n   */\n  isGroupActive(nodeId) {\n    for (let activeNode of this.project.nodes) {\n      if (nodeId == activeNode.id) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Move the node to the active nodes array\n   */\n  moveToActive(node) {\n    if (node != null) {\n      if (!this.isActive(node.id)) {\n        // the node is inactive so we will move it to the active array\n\n        // remove the node from inactive nodes array\n        this.removeNodeFromInactiveNodes(node.id);\n\n        this.addNode(node);\n\n        if (this.isGroupNode(node.id)) {\n          /*\n           * This is a group node so we will also move all of its\n           * children to active.\n           */\n          let childIds = node.ids;\n          for (let childId of childIds) {\n            let childNode = this.removeNodeFromInactiveNodes(childId);\n            this.addNode(childNode);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Move the node to the inactive nodes array\n   * @param node the node to move\n   * @param nodeIdToInsertAfter place the node after this\n   */\n  moveToInactive(node, nodeIdToInsertAfter) {\n    if (node != null) {\n      if (this.isActive(node.id)) {\n        // the node is active so we will move it to the inactive array\n\n        this.removeNodeFromActiveNodes(node.id);\n\n        // add the node to the inactive array\n        this.addInactiveNode(node, nodeIdToInsertAfter);\n      }\n    }\n  }\n\n  /**\n   * Move the node from active to inside an inactive group\n   * @param node the node to move\n   * @param nodeIdToInsertInside place the node inside this\n   */\n  moveFromActiveToInactiveInsertInside(node, nodeIdToInsertInside) {\n    this.removeNodeFromActiveNodes(node.id);\n\n    // add the node to the inactive array\n    this.addInactiveNodeInsertInside(node, nodeIdToInsertInside);\n  }\n\n  /**\n   * Move the node from inactive to inside an inactive group\n   * @param node the node to move\n   * @param nodeIdToInsertInside place the node inside this\n   */\n  moveFromInactiveToInactiveInsertInside(node, nodeIdToInsertInside) {\n    this.removeNodeFromInactiveNodes(node.id);\n\n    if (this.isGroupNode(node.id)) {\n      /*\n       * remove the group's child nodes from our data structures so that we can\n       * add them back in later\n       */\n      let childIds = node.ids;\n      for (let childId of childIds) {\n        let childNode = this.getNodeById(childId);\n        let inactiveNodesIndex = this.project.inactiveNodes.indexOf(childNode);\n        if (inactiveNodesIndex != -1) {\n          this.project.inactiveNodes.splice(inactiveNodesIndex, 1);\n        }\n        let inactiveStepNodesIndex = this.inactiveStepNodes.indexOf(childNode);\n        if (inactiveStepNodesIndex != -1) {\n          this.inactiveStepNodes.splice(inactiveStepNodesIndex, 1);\n        }\n      }\n    }\n\n    // add the node to the inactive array\n    this.addInactiveNodeInsertInside(node, nodeIdToInsertInside);\n  }\n\n  /**\n   * Add the node to the inactive nodes array\n   * @param node the node to move\n   * @param nodeIdToInsertAfter place the node after this\n   */\n  addInactiveNode(node, nodeIdToInsertAfter) {\n    if (node != null) {\n      const inactiveNodes = this.project.inactiveNodes;\n\n      if (inactiveNodes != null) {\n        // clear the transitions from this node\n        if (node.transitionLogic != null) {\n          node.transitionLogic.transitions = [];\n        }\n\n        if (nodeIdToInsertAfter == null || nodeIdToInsertAfter === 'inactiveNodes' || nodeIdToInsertAfter === 'inactiveSteps' || nodeIdToInsertAfter === 'inactiveGroups') {\n          // put the node at the beginning of the inactive steps\n          inactiveNodes.splice(0, 0, node);\n        } else {\n          // put the node after one of the inactive nodes\n\n          let added = false;\n          for (let i = 0; i < inactiveNodes.length; i++) {\n            const inactiveNode = inactiveNodes[i];\n            if (inactiveNode != null) {\n              if (nodeIdToInsertAfter === inactiveNode.id) {\n                let parentGroup = this.getParentGroup(nodeIdToInsertAfter);\n                if (parentGroup != null) {\n                  this.insertNodeAfterInGroups(node.id, nodeIdToInsertAfter);\n                  this.insertNodeAfterInTransitions(node, nodeIdToInsertAfter);\n                }\n                // we have found the position to place the node\n                inactiveNodes.splice(i + 1, 0, node);\n                added = true;\n              }\n            }\n          }\n\n          if (!added) {\n            /*\n             * we haven't added the node yet so we will just add it\n             * to the end of the array\n             */\n            inactiveNodes.push(node);\n          }\n        }\n\n        if (node.type == 'group') {\n          this.inactiveGroupNodes.push(node.id);\n          this.addGroupChildNodesToInactive(node);\n        } else {\n          this.inactiveStepNodes.push(node.id);\n        }\n      }\n    }\n  }\n\n  /**\n   * Add the node to the inactive nodes array\n   * @param node the node to move\n   * @param nodeIdToInsertInside place the node inside this group\n   */\n  addInactiveNodeInsertInside(node, nodeIdToInsertInside) {\n    if (node != null) {\n      const inactiveNodes = this.project.inactiveNodes;\n      const inactiveGroups = this.getInactiveGroupNodes();\n\n      if (inactiveNodes != null) {\n        // clear the transitions from this node\n        if (node.transitionLogic != null) {\n          node.transitionLogic.transitions = [];\n        }\n\n        if (nodeIdToInsertInside == null || nodeIdToInsertInside === 'inactiveNodes' || nodeIdToInsertInside === 'inactiveSteps' || nodeIdToInsertInside === 'inactiveGroups') {\n          // put the node at the beginning of the inactive steps\n          inactiveNodes.splice(0, 0, node);\n        } else {\n          // put the node after one of the inactive nodes\n\n          let added = false;\n          for (let inactiveGroup of inactiveGroups) {\n            if (nodeIdToInsertInside == inactiveGroup.id) {\n              // we have found the group we want to insert into\n              this.insertNodeInsideInTransitions(node.id, nodeIdToInsertInside);\n              this.insertNodeInsideInGroups(node.id, nodeIdToInsertInside);\n\n              /*\n               * Loop through the inactive nodes array which contains all\n               * inactive groups and inactive nodes in a flattened array.\n               * Find the inactive group and place the node right after it\n               * for the sake of keeping things organized.\n               */\n              for (let i = 0; i < inactiveNodes.length; i++) {\n                let inactiveNode = inactiveNodes[i];\n                if (nodeIdToInsertInside == inactiveNode.id) {\n                  inactiveNodes.splice(i + 1, 0, node);\n                  added = true;\n                }\n              }\n            }\n          }\n\n          if (!added) {\n            /*\n             * we haven't added the node yet so we will just add it\n             * to the end of the array\n             */\n            inactiveNodes.push(node);\n          }\n        }\n\n        if (node.type == 'group') {\n          this.inactiveGroupNodes.push(node.id);\n          this.addGroupChildNodesToInactive(node);\n        } else {\n          this.inactiveStepNodes.push(node.id);\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a group's child nodes to the inactive nodes.\n   * @param node The group node.\n   */\n  addGroupChildNodesToInactive(node) {\n    if (node != null) {\n      let childIds = node.ids;\n      for (let childId of childIds) {\n        let childNode = this.getNodeById(childId);\n        this.project.inactiveNodes.push(childNode);\n        this.inactiveStepNodes.push(childNode);\n      }\n    }\n  }\n\n  /**\n   * Move an inactive node within the inactive nodes array\n   * @param node the node to move\n   * @param nodeIdToInsertAfter place the node after this\n   */\n  moveInactiveNode(node, nodeIdToInsertAfter) {\n    if (node != null) {\n      const inactiveNodes = this.project.inactiveNodes;\n      if (inactiveNodes != null) {\n        // remove the node from inactive nodes\n\n        for (let i = 0; i < inactiveNodes.length; i++) {\n          const inactiveNode = inactiveNodes[i];\n          if (inactiveNode != null) {\n            if (node.id === inactiveNode.id) {\n              // we have found the node we want to remove\n              inactiveNodes.splice(i, 1);\n            }\n          }\n        }\n\n        // add the node back into the inactive nodes\n\n        if (nodeIdToInsertAfter == null || nodeIdToInsertAfter === 'inactiveSteps' || nodeIdToInsertAfter === 'inactiveNodes') {\n          // put the node at the beginning of the inactive nodes\n          inactiveNodes.splice(0, 0, node);\n        } else {\n          // put the node after one of the inactive nodes\n\n          let added = false;\n          for (let i = 0; i < inactiveNodes.length; i++) {\n            const inactiveNode = inactiveNodes[i];\n            if (inactiveNode != null) {\n              if (nodeIdToInsertAfter === inactiveNode.id) {\n                // we have found the position to place the node\n                let parentGroup = this.getParentGroup(nodeIdToInsertAfter);\n                if (parentGroup != null) {\n                  this.insertNodeAfterInGroups(node.id, nodeIdToInsertAfter);\n                  this.insertNodeAfterInTransitions(node, nodeIdToInsertAfter);\n                }\n                inactiveNodes.splice(i + 1, 0, node);\n                added = true;\n              }\n            }\n          }\n\n          if (!added) {\n            /*\n             * we haven't added the node yet so we will just add it\n             * to the end of the array\n             */\n            inactiveNodes.push(node);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove transitions that go out of the group\n   * @param nodeId the group id\n   */\n  removeTransitionsOutOfGroup(nodeId) {\n    if (nodeId != null) {\n      const group = this.getNodeById(nodeId);\n      if (group != null) {\n        const childIds = group.ids;\n        if (childIds != null) {\n          for (let childId of childIds) {\n            if (childId != null) {\n              const transitions = this.getTransitionsByFromNodeId(childId);\n              if (transitions != null) {\n                for (let t = 0; t < transitions.length; t++) {\n                  const transition = transitions[t];\n                  if (transition != null) {\n                    const toNodeId = transition.to;\n                    if (toNodeId != null) {\n                      const toNodeIdParentGroupId = this.getParentGroupId(toNodeId);\n                      if (nodeId != toNodeIdParentGroupId) {\n                        /*\n                         * the parent group is different which means it is a\n                         * transition that goes out of the group\n                         */\n\n                        // remove the transition\n                        transitions.splice(t, 1);\n                        t--;\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /*\n   * Update the step transitions that point into the group we are moving\n   * For example\n   * group1 has children node1 and node2 (node2 transitions to node3)\n   * group2 has children node3 and node4 (node4 transitions to node5)\n   * group3 has children node5 and node6\n   * if we move group2 after group3 we will need to change the\n   * transition from node2 to node3 and make node2 transition to node5\n   * the result will be\n   * group1 has children node1 and node2 (node2 transitions to node5)\n   * group3 has children node5 and node6\n   * group2 has children node3 and node4 (node4 transitions to node5)\n   * note: the (node4 transition to node5) will be removed later\n   * when is called removeTransitionsOutOfGroup\n   * note: when group2 is added in a later function call, we will add\n   * the node6 to node3 transition\n   * @param groupThatTransitionsToGroupWeAreMoving the group object\n   * that transitions to the group we are moving. we may need to update\n   * the transitions of this group's children.\n   * @param groupIdWeAreMoving the group id of the group we are moving\n   */\n  updateChildrenTransitionsIntoGroupWeAreMoving(\n      groupThatTransitionsToGroupWeAreMoving, groupIdWeAreMoving) {\n    if (groupThatTransitionsToGroupWeAreMoving != null &&\n        groupIdWeAreMoving != null) {\n      const group = this.getNodeById(groupIdWeAreMoving);\n      if (group != null) {\n        // get all the nodes that have a transition to the node we are removing\n        const nodesByToNodeId = this.getNodesByToNodeId(groupIdWeAreMoving);\n\n        // get the transitions of the node we are removing\n        const nodeToRemoveTransitionLogic = group.transitionLogic;\n        let nodeToRemoveTransitions = [];\n\n        if (nodeToRemoveTransitionLogic != null && nodeToRemoveTransitionLogic.transitions != null) {\n          nodeToRemoveTransitions = nodeToRemoveTransitionLogic.transitions;\n        }\n\n        if (nodeToRemoveTransitions.length == 0) {\n          /*\n           * The group we are moving is the last group in the project\n           * and does not have any transitions. We will loop through\n           * all the nodes that transition into this group and remove\n           * those transitions.\n           */\n\n          // get child ids of the group that comes before the group we are moving\n          const childIds = groupThatTransitionsToGroupWeAreMoving.ids;\n\n          if (childIds != null) {\n            for (let childId of childIds) {\n              const transitionsFromChild = this.getTransitionsByFromNodeId(childId);\n              if (transitionsFromChild != null) {\n                for (let tfc = 0; tfc < transitionsFromChild.length; tfc++) {\n                  const transitionFromChild = transitionsFromChild[tfc];\n                  if (transitionFromChild != null) {\n                    const toNodeId = transitionFromChild.to;\n\n                    // get the parent group id of the toNodeId\n                    const toNodeIdParentGroupId = this.getParentGroupId(toNodeId);\n\n                    if (groupIdWeAreMoving === toNodeIdParentGroupId) {\n                      // the transition is to a child in the group we are moving\n\n                      // remove the transition\n                      transitionsFromChild.splice(tfc, 1);\n\n                      /*\n                       * move the counter back one because we have just removed an\n                       * element from the array\n                       */\n                      tfc--;\n                    }\n                  }\n                }\n              }\n            }\n          }\n        } else if (nodeToRemoveTransitions.length > 0) {\n          // get the first group that comes after the group we are removing\n          const firstNodeToRemoveTransition = nodeToRemoveTransitions[0];\n          const firstNodeToRemoveTransitionToNodeId = firstNodeToRemoveTransition.to;\n\n          if (this.isGroupNode(firstNodeToRemoveTransitionToNodeId)) {\n            // get the group that comes after the group we are moving\n            const groupNode = this.getNodeById(firstNodeToRemoveTransitionToNodeId);\n\n            // get child ids of the group that comes before the group we are moving\n            const childIds = groupThatTransitionsToGroupWeAreMoving.ids;\n\n            if (childIds != null) {\n              for (let childId of childIds) {\n                const transitionsFromChild = this.getTransitionsByFromNodeId(childId);\n                if (transitionsFromChild != null) {\n                  for (let transitionFromChild of transitionsFromChild) {\n                    if (transitionFromChild != null) {\n                      const toNodeId = transitionFromChild.to;\n\n                      // get the parent group id of the toNodeId\n                      const toNodeIdParentGroupId = this.getParentGroupId(toNodeId);\n\n                      if (groupIdWeAreMoving === toNodeIdParentGroupId) {\n                        // the transition is to a child in the group we are moving\n\n                        if (groupNode.startId == null) {\n                          // change the transition to point to the after group\n                          transitionFromChild.to = firstNodeToRemoveTransitionToNodeId;\n                        } else {\n                          // change the transition to point to the start id of the after group\n                          transitionFromChild.to = groupNode.startId;\n                        }\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if a node generates work by looking at all of its components\n   * @param nodeId the node id\n   * @return whether the node generates work\n   */\n  nodeHasWork(nodeId) {\n    if (nodeId != null) {\n      const nodeContent = this.getNodeContentByNodeId(nodeId);\n      if (nodeContent != null) {\n        const components = nodeContent.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              const componentHasWork = this.componentHasWork(component);\n              if (componentHasWork) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if a component generates work\n   * @param component check if this component generates work\n   * @return whether the component generates work\n   */\n  componentHasWork(component) {\n    if (component != null) {\n      const componentType = component.type;\n      const componentService = this.getComponentService(componentType);\n      if (componentService != null) {\n        return componentService.componentHasWork(component);\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get a component service\n   * @param componentType the component type\n   * @return the component service\n   */\n  getComponentService(componentType) {\n    let componentService = null;\n    if (componentType != null) {\n      const componentServiceName = componentType + 'Service';\n\n      /*\n       * check if we have previously retrieved the component service.\n       * if have previously retrieved the component service it will\n       * be in the componentServices map\n       */\n      componentService = this.componentServices[componentServiceName];\n\n      if (componentService == null) {\n        /*\n         * we have not previously retrieved the component service so\n         * we will get it now\n         */\n        componentService = this.$injector.get(componentServiceName);\n\n        /*\n         * save the component service to the map so we can easily\n         * retrieve it later\n         */\n        this.componentServices[componentServiceName] = componentService;\n      }\n    }\n    return componentService;\n  }\n\n  /**\n   * Get an unused component id\n   * @param componentIdsToSkip (optional) An array of additional component ids\n   * to skip. This is used when we are creating multiple new components. There\n   * is avery small chance that we create duplicate component ids that aren't\n   * already in the project. We avoid this problem by using this parameter.\n   * Example\n   * We want to create two new components. We first generate a new component\n   * id for the first new component for example \"1234567890\". Then we generate\n   * a new component id for the second new component and pass in\n   * [\"1234567890\"] as componentIdsToSkip because the new \"1234567890\"\n   * component hasn't actually been added to the project yet.\n   * @return a component id that isn't already being used in the project\n   */\n  getUnusedComponentId(componentIdsToSkip) {\n    // we want to make an id with 10 characters\n    const idLength = 10;\n\n    let newComponentId = this.UtilService.generateKey(idLength);\n\n    // check if the component id is already used in the project\n    if (this.isComponentIdUsed(newComponentId)) {\n      /*\n       * the component id is already used in the project so we need to\n       * try generating another one\n       */\n      let alreadyUsed = true;\n\n      /*\n       * keep trying to generate a new component id until we have found\n       * one that isn't already being used\n       */\n      while(!alreadyUsed) {\n        // generate a new id\n        newComponentId = this.UtilService.generateKey(idLength);\n\n        // check if the id is already being used in the project\n        alreadyUsed = this.isComponentIdUsed(newComponentId);\n\n        if (componentIdsToSkip != null && componentIdsToSkip.indexOf(newComponentId) != -1) {\n          /*\n           * the new component is in the componentIdsToSkip so it has\n           * already been used\n           */\n          alreadyUsed = true;\n        }\n      }\n    }\n    return newComponentId;\n  }\n\n  /**\n   * Check if the component id is already being used in the project\n   * @param componentId check if this component id is already being used in\n   * the project\n   * @return whether the component id is already being used in the project\n   */\n  isComponentIdUsed(componentId) {\n    for (let node of this.project.nodes) {\n      if (node != null) {\n        const components = node.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              if (componentId === component.id) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n\n    for (let node of this.project.inactiveNodes) {\n      if (node != null) {\n        const components = node.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              if (componentId === component.id) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the next available constraint id for a node\n   * @param nodeId get the next available constraint id for this node\n   * e.g. node8Constraint2\n   * @return the next available constraint id for the node\n   */\n  getNextAvailableConstraintIdForNodeId(nodeId) {\n    let nextAvailableConstraintId = null;\n    if (nodeId != null) {\n      // an array to hold the constraint ids that are already being used\n      const usedConstraintIds = [];\n      const node = this.getNodeById(nodeId);\n\n      if (node != null) {\n        const constraints = node.constraints;\n        if (constraints != null) {\n          for (let constraint of constraints) {\n            if (constraint != null) {\n              const constraintId = constraint.id;\n\n              // add the constraint id to the array of used constraint ids\n              usedConstraintIds.push(constraintId);\n            }\n          }\n        }\n      }\n\n      let foundNextAvailableConstraintId = false;\n      let counter = 1;\n\n      while (!foundNextAvailableConstraintId) {\n        const potentialConstraintId = nodeId + 'Constraint' + counter;\n        // check if the constraint id has been used\n        if (usedConstraintIds.indexOf(potentialConstraintId) == -1) {\n          nextAvailableConstraintId = potentialConstraintId;\n          foundNextAvailableConstraintId = true;\n        } else {\n          counter++;\n        }\n      }\n    }\n    return nextAvailableConstraintId;\n  }\n\n  /**\n   * Get the node ids in the branch by looking for nodes that have branch\n   * path taken constraints with the given fromNodeId and toNodeId\n   * @param fromNodeId the from node id\n   * @param toNodeId the to node id\n   * @return an array of nodes that are in the branch path\n   */\n  getNodeIdsInBranch(fromNodeId, toNodeId) {\n    const nodeIdsInBranch = [];\n    const nodes = this.getNodes();\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          if (this.hasBranchPathTakenConstraint(node, fromNodeId, toNodeId)) {\n            /*\n             * this node has the the branch path taken constraint we are\n             * looking for\n             */\n            nodeIdsInBranch.push(node.id);\n          }\n        }\n      }\n    }\n    this.orderNodeIds(nodeIdsInBranch);\n    return nodeIdsInBranch;\n  }\n\n  /**\n   * Order the node ids so that they show up in the same order as in the\n   * project.\n   * @param constraints An array of node ids.\n   * @return An array of ordered node ids.\n   */\n  orderNodeIds(nodeIds) {\n    let orderedNodeIds = this.getFlattenedProjectAsNodeIds();\n    return nodeIds.sort(this.nodeIdsComparatorGenerator(orderedNodeIds));\n  }\n\n  /**\n   * Create the node ids comparator function that is used for sorting an\n   * array of node ids.\n   * @param orderedNodeIds An array of node ids in the order in which they\n   * show up in the project.\n   * @return A comparator that orders node ids in the order in which they show\n   * up in the project.\n   */\n  nodeIdsComparatorGenerator(orderedNodeIds) {\n    return function(nodeIdA, nodeIdB) {\n      let nodeIdAIndex = orderedNodeIds.indexOf(nodeIdA);\n      let nodeIdBIndex = orderedNodeIds.indexOf(nodeIdB);\n      if (nodeIdAIndex < nodeIdBIndex) {\n        return -1;\n      } else if (nodeIdAIndex > nodeIdBIndex) {\n        return 1;\n      }\n      return 0;\n    }\n  }\n\n  /**\n   * Check if a node has a branch path taken constraint\n   * @param node the node to check\n   * @param fromNodeId the from node id of the branch path taken\n   * @param toNodeId the to node id of the branch path taken\n   * @return whether the node has a branch path taken constraint with the\n   * given from node id and to node id\n   */\n  hasBranchPathTakenConstraint(node, fromNodeId, toNodeId) {\n    if (node != null) {\n      const constraints = node.constraints;\n      if (constraints != null) {\n        for (let constraint of constraints) {\n          if (constraint != null) {\n            const removalCriteria = constraint.removalCriteria;\n            if (removalCriteria != null) {\n              for (let removalCriterion of removalCriteria) {\n                if (removalCriterion != null) {\n                  const name = removalCriterion.name;\n                  if (name == 'branchPathTaken') {\n                    const params = removalCriterion.params;\n                    if (params != null) {\n                      if (fromNodeId == params.fromNodeId && toNodeId == params.toNodeId) {\n                        return true;\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Remove the branch path taken constraints from a node\n   * @param nodeId remove the constraints from this node\n   */\n  removeBranchPathTakenNodeConstraints(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const constraints = node.constraints;\n      if (constraints != null) {\n        for (let c = 0; c < constraints.length; c++) {\n          const constraint = constraints[c];\n          if (constraint != null) {\n            const removalCriteria = constraint.removalCriteria;\n\n            if (removalCriteria != null) {\n              for (let removalCriterion of removalCriteria) {\n                if (removalCriterion != null) {\n                  if (removalCriterion.name == 'branchPathTaken') {\n                    const params = removalCriterion.params;\n                    constraints.splice(c, 1);\n                    // move the counter back one because we just removed a constraint\n                    c--;\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the branch path taken constraints from a node\n   * @param nodeId get the branch path taken constraints from this node\n   * @return an array of branch path taken constraints from the node\n   */\n  getBranchPathTakenConstraintsByNodeId(nodeId) {\n    const branchPathTakenConstraints = [];\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        const constraints = node.constraints;\n        if (constraints != null) {\n          for (let constraint of constraints) {\n            if (constraint != null) {\n              const removalCriteria = constraint.removalCriteria;\n              if (removalCriteria != null) {\n                for (let removalCriterion of removalCriteria) {\n                  if (removalCriterion != null) {\n                    if (removalCriterion.name == 'branchPathTaken') {\n                      /*\n                       * we have found a branch path taken constraint so\n                       * we will add the constraint to the array\n                       */\n                      branchPathTakenConstraints.push(constraint);\n                      break;\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return branchPathTakenConstraints;\n  }\n\n  /**\n   * Update the branch path taken constraint\n   * @param node update the branch path taken constraints in this node\n   * @param currentFromNodeId the current from node id\n   * @param currentToNodeId the current to node id\n   * @param newFromNodeId the new from node id\n   * @param newToNodeId the new to node id\n   */\n  updateBranchPathTakenConstraint(node, currentFromNodeId, currentToNodeId,\n      newFromNodeId, newToNodeId) {\n    if (node != null) {\n      const constraints = node.constraints;\n      if (constraints != null) {\n        for (let constraint of constraints) {\n          if (constraint != null) {\n            const removalCriteria = constraint.removalCriteria;\n            if (removalCriteria != null) {\n              for (let removalCriterion of removalCriteria) {\n                if (removalCriterion != null) {\n                  if (removalCriterion.name === 'branchPathTaken') {\n                    const params = removalCriterion.params;\n                    if (params != null) {\n                      if (params.fromNodeId === currentFromNodeId &&\n                        params.toNodeId === currentToNodeId) {\n                        /*\n                         * we have found a branchPathTaken removal criterion\n                         * with the fromNodeId and toNodeId that we are\n                         * looking for so we will now update the values\n                         */\n                        params.fromNodeId = newFromNodeId;\n                        params.toNodeId = newToNodeId;\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the project level rubric\n   * @return the project level rubric\n   */\n  getProjectRubric() {\n    return this.project.rubric;\n  }\n\n  /**\n   * Check if a node is a branch point\n   * @param nodeId the node id\n   * @return whether the node is a branch point\n   */\n  isBranchPoint(nodeId) {\n    const transitions = this.getTransitionsByFromNodeId(nodeId);\n    if (transitions != null) {\n      if (transitions.length > 1) {\n        /*\n         * the node contains more than one transition which means it is\n         * a branch point\n         */\n        return true;\n      }\n    }\n    return false;\n  }\n\n\n  /**\n   * Check if a node is the first node in a branch path\n   * @param nodeId the node id\n   * @return whether the node is the first node in a branch path\n   */\n  isFirstNodeInBranchPath(nodeId) {\n    const nodes = this.getNodes();\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null &&\n            node.transitionLogic != null &&\n            node.transitionLogic.transitions != null) {\n          const transitions = node.transitionLogic.transitions;\n\n          if (transitions.length > 1) {\n            /*\n             * there is more than one transition from this node\n             * which means it is a branch point\n             */\n            for (let transition of transitions) {\n              if (transition != null) {\n                const transitionTo = transition.to;\n                if (transitionTo === nodeId) {\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if the node is in any branch path\n   * @param nodeId the node id of the node\n   * @return whether the node is in any branch path\n   */\n  isNodeInAnyBranchPath(nodeId) {\n    let result = false;\n    if (this.nodeIdToIsInBranchPath[nodeId] == null) {\n      /*\n       * we have not calculated whether the node id is in a branch path\n       * before so we will now\n       */\n\n      const branches = this.getBranches();\n      result = this.isNodeIdInABranch(branches, nodeId);\n\n      // remember the result for this node id\n      this.nodeIdToIsInBranchPath[nodeId] = result;\n    } else {\n      /*\n       * we have calculated whether the node id is in a branch path\n       * before\n       */\n      result = this.nodeIdToIsInBranchPath[nodeId];\n    }\n    return result;\n  }\n\n  /**\n   * Check if a node is a branch start point\n   * @param nodeId look for a branch with this start node id\n   * @return whether the node is a branch start point\n   */\n  isBranchStartPoint(nodeId) {\n    /*\n     * Get all the branches. Each branch is represented as an object that\n     * contains the branchStartPoint, branchEndPoint, and branchPaths.\n     */\n    const branches = this.getBranches();\n\n    if (branches != null) {\n      for (let branch of branches) {\n        if (branch != null) {\n          if (branch.branchStartPoint == nodeId) {\n            /*\n             * we have found a branch with the given nodeId as the\n             * start point\n             */\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if a node is a branch end point\n   * @param nodeId look for a branch with this end node id\n   * @return whether the node is a branch end point\n   */\n  isBranchMergePoint(nodeId) {\n    /*\n     * Get all the branches. Each branch is represented as an object that\n     * contains the branchStartPoint, branchEndPoint, and branchPaths.\n     */\n    const branches = this.getBranches();\n\n    if (branches != null) {\n      for (let branch of branches) {\n        if (branch != null) {\n          if (branch.branchEndPoint == nodeId) {\n            /*\n             * we have found a branch with the given nodeId as the\n             * end point\n             */\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get all the branches whose branch start point is the given node id\n   * @param nodeId the branch start point\n   * @return an array of branches that have the given branch start point\n   */\n  getBranchesByBranchStartPointNodeId(nodeId) {\n    const branches = [];\n    const allBranches = this.getBranches();\n\n    if (allBranches != null) {\n      for (let branch of allBranches) {\n        if (branch != null) {\n          if (nodeId == branch.branchStartPoint) {\n            /*\n             * the branch start point matches the node id we are\n             * looking for\n             */\n            branches.push(branch);\n          }\n        }\n      }\n    }\n    return branches;\n  }\n\n  /**\n   * Calculate the node numbers and set them into the nodeIdToNumber map\n   */\n  calculateNodeNumbers() {\n    this.nodeIdToNumber = {};\n    this.nodeIdToBranchPathLetter = {};\n    const startNodeId = this.getStartNodeId();\n\n    const currentActivityNumber = 0;\n    const currentStepNumber = 0;\n\n    // recursively calculate the node numbers by traversing the project tree\n    this.calculateNodeNumbersHelper(\n        startNodeId, currentActivityNumber, currentStepNumber);\n  }\n\n  /**\n   * Recursively calcualte the node numbers by traversing the project tree\n   * using transitions\n   * @param nodeId the current node id we are on\n   * @param currentActivityNumber the current activity number\n   * @param currentStepNumber the current step number\n   * @param branchLetterCode (optional) the character code for the branch\n   * letter e.g. 1=A, 2=B, etc.\n   */\n  calculateNodeNumbersHelper(nodeId, currentActivityNumber, currentStepNumber, branchLetterCode) {\n    if (nodeId != null) {\n      if (this.isApplicationNode(nodeId)) {\n        const node = this.getNodeById(nodeId);\n        if (node != null) {\n          const parentGroup = this.getParentGroup(nodeId);\n          if (parentGroup != null) {\n            if (this.nodeIdToNumber[parentGroup.id] == null) {\n              /*\n               * the parent group has not been assigned a number so\n               * we will assign a number now\n               */\n\n              currentActivityNumber = parseInt(currentActivityNumber) + 1;\n\n              /*\n               * set the current step number to 1 now that we have\n               * entered a new group\n               */\n              currentStepNumber = 1;\n\n              this.nodeIdToNumber[parentGroup.id] = \"\" + currentActivityNumber;\n            } else {\n              /*\n               * the parent group has previously been assigned a number so we\n               * will use it\n               */\n              currentActivityNumber = this.nodeIdToNumber[parentGroup.id];\n            }\n          }\n\n          if (this.isBranchMergePoint(nodeId)) {\n            /*\n             * the node is a merge point so we will not use a letter\n             * anymore now that we are no longer in a branch path\n             */\n            branchLetterCode = null;\n          }\n\n          if (this.isBranchStartPoint(nodeId)) {\n            const branchesByBranchStartPointNodeId =\n                this.getBranchesByBranchStartPointNodeId(nodeId);\n            const branchesObject = branchesByBranchStartPointNodeId[0];\n\n            /*\n             * been used in the branch paths so that we know what\n             * step number to give the merge end point\n             * this is used to obtain the max step number that has\n             */\n            let maxCurrentStepNumber = 0;\n\n            // set the step number for the branch start point\n            this.nodeIdToNumber[nodeId] = currentActivityNumber + '.' + currentStepNumber;\n\n            currentStepNumber++;\n            const branchPaths = branchesObject.branchPaths;\n\n            for (let bp = 0; bp < branchPaths.length; bp++) {\n              const branchPath = branchPaths[bp];\n              let branchCurrentStepNumber = currentStepNumber;\n\n              // get the letter code e.g. 1=A, 2=B, etc.\n              const branchLetterCode = bp;\n\n              for (let bpn = 0; bpn < branchPath.length; bpn++) {\n                if (bpn == 0) {\n                  /*\n                   * Recursively call calculateNodeNumbersHelper on the\n                   * first step in this branch path. This will recursively\n                   * calculate the numbers for all the nodes in this\n                   * branch path.\n                   */\n                  const branchPathNodeId = branchPath[bpn];\n                  this.calculateNodeNumbersHelper(branchPathNodeId, currentActivityNumber, branchCurrentStepNumber, branchLetterCode);\n                }\n\n                branchCurrentStepNumber++;\n\n                /*\n                 * update the max current step number if we have found\n                 * a larger number\n                 */\n                if (branchCurrentStepNumber > maxCurrentStepNumber) {\n                  maxCurrentStepNumber = branchCurrentStepNumber;\n                }\n              }\n            }\n\n            // get the step number we should use for the end point\n            currentStepNumber = maxCurrentStepNumber;\n\n            const branchEndPointNodeId = branchesObject.branchEndPoint;\n\n            /*\n             * calculate the node number for the branch end point and\n             * continue calculating node numbers for the nodes that\n             * come after it\n             */\n            this.calculateNodeNumbersHelper(branchEndPointNodeId, currentActivityNumber, currentStepNumber);\n          } else {\n            // the node is not a branch start point\n\n            /*\n             * check if we have already set the number for this node so\n             * that we don't need to unnecessarily re-calculate the\n             * node number\n             */\n            if (this.nodeIdToNumber[nodeId] == null) {\n              // we have not calculated the node number yet\n\n              let number = null;\n\n              if (branchLetterCode == null) {\n                // we do not need to add a branch letter\n\n                // get the node number e.g. 1.5\n                number = currentActivityNumber + '.' + currentStepNumber;\n              } else {\n                // we need to add a branch letter\n\n                // get the branch letter\n                const branchLetter = String.fromCharCode(65 + branchLetterCode);\n\n                // get the node number e.g. 1.5 A\n                number = currentActivityNumber + '.' + currentStepNumber + ' ' + branchLetter;\n\n                // remember the branch path letter for this node\n                this.nodeIdToBranchPathLetter[nodeId] = branchLetter;\n              }\n\n              // set the number for the node\n              this.nodeIdToNumber[nodeId] = number;\n            } else {\n              /*\n               * We have calculated the node number before so we\n               * will return. This will prevent infinite looping\n               * within the project.\n               */\n              return;\n            }\n\n            // increment the step number for the next node to use\n            currentStepNumber++;\n\n            let transitions = [];\n\n            if (node.transitionLogic != null && node.transitionLogic.transitions) {\n              transitions = node.transitionLogic.transitions;\n            }\n\n            if (transitions.length > 0) {\n              /*\n               * loop through all the transitions, there should only\n               * be one but we will loop through them just to be complete.\n               * if there was more than one transition, it would mean\n               * this node is a branch start point in which case we\n               * would have gone inside the other block of code where\n               * this.isBranchStartPoint() is true.\n               */\n              for (let transition of transitions) {\n                if (transition != null) {\n                  if (this.isBranchMergePoint(transition.to)) {\n\n                  } else {\n                    this.calculateNodeNumbersHelper(transition.to, currentActivityNumber, currentStepNumber, branchLetterCode);\n                  }\n                }\n              }\n            } else {\n              // if there are no transitions, check if the parent group has a transition\n\n              if (parentGroup != null &&\n                  parentGroup.transitionLogic != null &&\n                  parentGroup.transitionLogic.transitions != null &&\n                  parentGroup.transitionLogic.transitions.length > 0) {\n                for (let transition of parentGroup.transitionLogic.transitions) {\n                  if (transition != null) {\n                    this.calculateNodeNumbersHelper(transition.to, currentActivityNumber, currentStepNumber, branchLetterCode);\n                  }\n                }\n              }\n            }\n          }\n        }\n      } else {\n        // the node is a group node\n\n        const node = this.getNodeById(nodeId);\n        if (node != null) {\n          // check if the group has previously been assigned a number\n          if (this.nodeIdToNumber[nodeId] == null) {\n            /*\n             * the group has not been assigned a number so\n             * we will assign a number now\n             */\n            if (nodeId == 'group0') {\n              // group 0 will always be given the activity number of 0\n              this.nodeIdToNumber[nodeId] = \"\" + 0;\n            } else {\n              // set the activity number\n              currentActivityNumber = parseInt(currentActivityNumber) + 1;\n\n              /*\n               * set the current step number to 1 now that we have\n               * entered a new group\n               */\n              currentStepNumber = 1;\n\n              // set the activity number\n              this.nodeIdToNumber[nodeId] = \"\" + currentActivityNumber;\n            }\n          } else {\n            /*\n             * We have calculated the node number before so we\n             * will return. This will prevent infinite looping\n             * within the project.\n             */\n            return;\n          }\n\n          if (node.startId != null && node.startId != '') {\n            /*\n             * calculate the node number for the first step in this\n             * activity and any steps after it\n             */\n            this.calculateNodeNumbersHelper(node.startId, currentActivityNumber, currentStepNumber, branchLetterCode);\n          } else {\n            /*\n             * this activity doesn't have a start step so we will\n             * look for a transition\n             */\n\n            if (node != null &&\n                node.transitionLogic != null &&\n                node.transitionLogic.transitions != null &&\n                node.transitionLogic.transitions.length > 0) {\n              for (let transition of node.transitionLogic.transitions) {\n                if (transition != null) {\n                  /*\n                   * calculate the node number for the next group\n                   * and all its children steps\n                   */\n                  this.calculateNodeNumbersHelper(\n                      transition.to, currentActivityNumber, currentStepNumber,\n                      branchLetterCode);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Get script for this project\n   */\n  getProjectScript() {\n    return this.project.script;\n  }\n\n  /**\n   * Get the next node\n   * @param nodeId get the node id that comes after this one\n   * @return the node id that comes after\n   */\n  getNextNodeId(nodeId) {\n    const flattenedNodeIds = this.getFlattenedProjectAsNodeIds();\n    if (flattenedNodeIds != null) {\n      const indexOfNodeId = flattenedNodeIds.indexOf(nodeId);\n      if (indexOfNodeId != -1) {\n        const indexOfNextNodeId = indexOfNodeId + 1;\n        return flattenedNodeIds[indexOfNextNodeId];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get all the achievements object in the project. The achievements object\n   * contains the isEnabled field and an array of items.\n   * @return the achievement object\n   */\n  getAchievements() {\n    if (this.project != null) {\n      if (this.project.achievements == null) {\n        this.project.achievements = {\n          isEnabled: true,\n          items: []\n        };\n      }\n      return this.project.achievements;\n    }\n    return null;\n  }\n\n  /**\n   * Get the achievement items in the project\n   * @return the achievement items\n   */\n  getAchievementItems() {\n    const achievements = this.getAchievements();\n    if (achievements != null) {\n      if (achievements.items == null) {\n        achievements.items = [];\n      }\n      return achievements.items;\n    }\n    return null;\n  }\n\n  /**\n   * Get an achievement by the 10 character alphanumeric achievement id\n   * @param achievementId the 10 character alphanumeric achievement id\n   * @return the achievement with the given achievement id\n   */\n  getAchievementByAchievementId(achievementId) {\n    if (achievementId != null) {\n      const achievements = this.getAchievements();\n      if (achievements != null) {\n        const achievementItems = achievements.items;\n        if (achievementItems != null) {\n          for (let achievement of achievementItems) {\n            if (achievement != null && achievement.id == achievementId) {\n              return achievement;\n            }\n          }\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the total number of rubrics (step + components) for the given nodeId\n   * @param nodeId the node id\n   * @return Number of rubrics for the node\n   */\n  getNumberOfRubricsByNodeId(nodeId) {\n    let n = 0;\n    let nodeContent = this.getNodeContentByNodeId(nodeId);\n    if (nodeContent) {\n      let nodeRubric = nodeContent.rubric;\n      if (nodeRubric != null && nodeRubric != '') {\n        n++;\n      }\n\n      let components = nodeContent.components;\n      if (components && components.length) {\n        for (let component of components) {\n          if (component) {\n            const componentRubric = component.rubric;\n            if (componentRubric != null && componentRubric != '') {\n              n++;\n            }\n          }\n        }\n      }\n    }\n    return n;\n  }\n\n  /**\n   * Remember the result for whether the node is affected by the constraint\n   * @param nodeId the node id\n   * @param constraintId the constraint id\n   * @param whether the node is affected by the constraint\n   */\n  setIsNodeAffectedByConstraintResult(nodeId, constraintId, result) {\n    this.isNodeAffectedByConstraintResult[nodeId + '-' + constraintId] = result;\n  }\n\n  /**\n   * Check if we have calculated the result for whether the node is affected\n   * by the constraint\n   * @param nodeId the node id\n   * @param constraintId the constraint id\n   * @return Return the result if we have calculated the result before. If we\n   * have not calculated the result before, we will return null.\n   */\n  getIsNodeAffectedByConstraintResult(nodeId, constraintId) {\n    return this.isNodeAffectedByConstraintResult[nodeId + '-' + constraintId];\n  }\n\n  /**\n   * Get the id to node mappings.\n   * @return An object the keys as node ids and the values as nodes.\n   */\n  getIdToNode() {\n    return this.idToNode;\n  }\n\n  /**\n   * Check if a node has rubrics.\n   * @param nodeId The node id of the node.\n   * @return Whether the node has rubrics authored on it.\n   */\n  nodeHasRubric(nodeId) {\n    let numberOfRubrics = this.getNumberOfRubricsByNodeId(nodeId);\n    if (numberOfRubrics > 0) {\n      return true;\n    }\n    return false;\n  }\n\n  getSpaces() {\n    if (this.project.spaces != null) {\n      return this.project.spaces;\n    } else {\n      return [];\n    }\n  }\n\n  addSpace(space) {\n    if (this.project.spaces == null) {\n      this.project.spaces = [];\n    }\n    if (!this.isSpaceExists(space.id)) {\n      this.project.spaces.push(space);\n      this.saveProject();\n    }\n  }\n\n  isSpaceExists(id) {\n    const spaces = this.getSpaces();\n    for (let space of spaces) {\n      if (space.id === id) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  removeSpace(id) {\n    let spaces = this.getSpaces();\n    for (let s = 0; s < spaces.length; s++) {\n      if (spaces[s].id == id) {\n        spaces.splice(s, 1);\n        this.saveProject();\n        return;\n      }\n    }\n  }\n}\n\nProjectService.$inject = [\n  '$filter',\n  '$http',\n  '$injector',\n  '$q',\n  '$rootScope',\n  'ConfigService',\n  'UtilService'\n];\n\nexport default ProjectService;\n"]}
\ No newline at end of file
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strict';\n\nclass ProjectService {\n  constructor($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService) {\n    this.$filter = $filter;\n    this.$http = $http;\n    this.$injector = $injector;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.ConfigService = ConfigService;\n    this.UtilService = UtilService;\n    this.project = null;\n    this.transitions = [];\n    this.applicationNodes = [];\n    this.inactiveStepNodes = [];\n    this.inactiveGroupNodes = [];\n    this.groupNodes = [];\n    this.idToNode = {};\n    this.idToElement = {};\n    this.metadata = {};\n    this.activeConstraints = [];\n    this.rootNode = null;\n    this.idToPosition = {};\n    this.idToOrder = {};\n    this.nodeCount = 0;\n    this.componentServices = {};\n    this.nodeIdToNumber = {};\n    this.nodeIdToIsInBranchPath = {};\n    this.nodeIdToBranchPathLetter = {};\n    this.achievements = [];\n    this.isNodeAffectedByConstraintResult = {};\n    this.flattenedProjectAsNodeIds = null;\n\n    this.$translate = this.$filter('translate');\n\n    // map from nodeId_componentId to array of additionalProcessingFunctions\n    this.additionalProcessingFunctionsMap = {};\n\n    // filtering options for navigation displays\n    this.filters = [\n      {'name': 'all', 'label': 'All'}\n      //{'name': 'todo', 'label': 'Todo'},\n      //{'name': 'completed', 'label': 'Completed'}\n    ];\n  };\n\n  setProject(project) {\n    this.project = project;\n    this.parseProject();\n  };\n\n  /**\n   * Initialize the data structures used to hold project information\n   */\n  clearProjectFields() {\n    this.transitions = [];\n    this.applicationNodes = [];\n    this.inactiveStepNodes = [];\n    this.inactiveGroupNodes = [];\n    this.groupNodes = [];\n    this.idToNode = {};\n    this.idToElement = {};\n    this.metadata = {};\n    this.activeConstraints = [];\n    this.rootNode = null;\n    this.idToPosition = {};\n    this.idToOrder = {};\n    this.nodeCount = 0;\n    this.nodeIdToIsInBranchPath = {};\n    this.achievements = [];\n    this.clearBranchesCache();\n  };\n\n  getStyle() {\n    let style = '';\n    const project = this.project;\n    if (project != null) {\n      style = project.style;\n    }\n    return style;\n  };\n\n  getFilters() {\n    return this.filters;\n  };\n\n  /**\n   * Returns the name/title of the current project\n   */\n  getProjectTitle() {\n    const name = this.getProjectMetadata().title;\n    return name ? name : 'A WISE Project (No name)';\n  };\n\n  /**\n   * Set the project title\n   */\n  setProjectTitle(projectTitle) {\n    const metadata = this.getProjectMetadata();\n    if (metadata != null) {\n      metadata.title = projectTitle;\n    }\n  }\n\n  getProjectMetadata() {\n    return this.metadata ? this.metadata : {};\n  };\n\n  getNodes() {\n    const project = this.project;\n    if (project != null) {\n      return project.nodes;\n    }\n    return null;\n  };\n\n  getChildNodeIdsById(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node.ids) {\n      return node.ids;\n    }\n    return [];\n  };\n\n  getGroupNodes() {\n    return this.groupNodes;\n  };\n\n  isNode(id) {\n    const nodes = this.getNodes();\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          const nodeId = node.id;\n          if (nodeId === id) {\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  };\n\n  addNode(node) {\n    const existingNodes = this.project.nodes;\n    let replaced = false;\n    if (node != null && existingNodes != null) {\n      for (let n = 0; n < existingNodes.length; n++) {\n        const existingNode = existingNodes[n];\n        const existingNodeId = existingNode.id;\n        if (existingNodeId === node.id) {\n          existingNodes.splice(n, 1, node);\n          replaced = true;\n        }\n      }\n    }\n    if (!replaced) {\n      existingNodes.push(node);\n    }\n  };\n\n  addApplicationNode(node) {\n    const applicationNodes = this.applicationNodes;\n    if (node != null && applicationNodes != null) {\n      applicationNodes.push(node);\n    }\n  };\n\n  addGroupNode(node) {\n    const groupNodes = this.groupNodes;\n    if (node != null && groupNodes != null) {\n      groupNodes.push(node);\n    }\n    this.$rootScope.$broadcast('groupsChanged');\n  };\n\n  addNodeToGroupNode(groupId, nodeId) {\n    if (groupId != null && nodeId != null) {\n      const group = this.getNodeById(groupId);\n      if (group != null) {\n        const groupChildNodeIds = group.ids;\n        if (groupChildNodeIds != null) {\n          if (groupChildNodeIds.indexOf(nodeId) === -1) {\n            groupChildNodeIds.push(nodeId);\n          }\n        }\n      }\n    }\n  };\n\n  isGroupNode(id) {\n    const groupNode = this.getNodeById(id);\n    if (groupNode != null) {\n      const type = groupNode.type;\n      if (type === 'group') {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  isApplicationNode(id) {\n    const applicationNode = this.getNodeById(id);\n    if (applicationNode != null) {\n      const type = applicationNode.type;\n      if (type !== 'group') {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  getGroups() {\n    return this.groupNodes;\n  };\n\n  /**\n   * Get the inactive group nodes.\n   * @return An array of inactive group nodes.\n   */\n  getInactiveGroupNodes() {\n    return this.inactiveGroupNodes;\n  }\n\n  /**\n   * Get the inactive step nodes. This will include the inactive steps that\n   * are in an inactive group.\n   * @return An array of inactive step nodes.\n   */\n  getInactiveStepNodes() {\n    return this.inactiveStepNodes;\n  }\n\n  loadNodes(nodes) {\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          const nodeId = node.id;\n          const nodeType = node.type;\n          const content = node.content;\n          const constraints = node.constraints;\n\n          if (content != null) {\n            //node.content = this.injectAssetPaths(content);\n          }\n\n          this.setIdToNode(nodeId, node);\n          this.setIdToElement(nodeId, node);\n          this.addNode(node);\n\n          if (nodeType === 'group') {\n            this.addGroupNode(node);\n          } else {\n            this.addApplicationNode(node);\n          }\n\n          const groupId = node.groupId;\n          if (groupId != null) {\n            this.addNodeToGroupNode(groupId, nodeId);\n          }\n\n          if (constraints != null) {\n            if (this.ConfigService.isPreview() == true && this.ConfigService.getConfigParam('constraints') === false) {\n              /*\n               * if we are in preview mode and constraints are set\n               * to false, we will not add the constraints\n               */\n            } else {\n              // all other cases we will add the constraints\n              for (let constraint of constraints) {\n                this.activeConstraints.push(constraint);\n              }\n            }\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Load the planning template nodes\n   * @param planning template nodes\n   */\n  loadPlanningNodes(planningNodes) {\n    if (planningNodes != null) {\n      for (let planningNode of planningNodes) {\n        if (planningNode != null) {\n          const nodeId = planningNode.id;\n          this.setIdToNode(nodeId, planningNode);\n          this.setIdToElement(nodeId, planningNode);\n\n          // TODO: may need to add more function calls here to add the planning\n        }\n      }\n    }\n  }\n\n  /**\n   * Parse the project to detect the nodes, branches, node numbers, etc.\n   */\n  parseProject() {\n    const project = this.project;\n    if (project != null) {\n      this.clearProjectFields();\n\n      if (project.metadata) {\n        this.metadata = project.metadata;\n      }\n\n      const nodes = project.nodes;\n      this.loadNodes(nodes);\n\n      const planningNodes = project.planningNodes;\n      this.loadPlanningNodes(planningNodes);\n\n      const inactiveNodes = project.inactiveNodes;\n      this.loadInactiveNodes(inactiveNodes);\n\n      const constraints = project.constraints;\n\n      if (constraints != null) {\n        for (let constraint of constraints) {\n          if (constraint != null) {\n            const constraintId = constraint.id;\n            constraint.active = true;\n            this.setIdToElement(constraintId, constraint);\n          }\n        }\n      }\n\n      this.rootNode = this.getRootNode(nodes[0].id);\n      this.calculateNodeOrderOfProject();\n\n      let n = nodes.length;\n      const branches = this.getBranches();\n      const branchNodeIds = [];\n\n      // set node positions\n      let id, pos;\n\n      while (n--) {\n        id = nodes[n].id;\n        if (id === this.rootNode.id) {\n          this.setIdToPosition(id, '0');\n        } else if (this.isNodeIdInABranch(branches, id)) {\n          // node is in a branch, so process later\n          branchNodeIds.push(id);\n        } else {\n          pos = this.getPositionById(id);\n          this.setIdToPosition(id, pos);\n        }\n      }\n\n      // set branch node positions\n      let b = branchNodeIds.length;\n      while (b--) {\n        id = branchNodeIds[b];\n        pos = this.getBranchNodePositionById(id);\n        this.setIdToPosition(id, pos);\n      }\n\n      /*\n       * calculate the node numbers\n       * e.g. if the step is called\n       * 1.5 View the Potential Energy\n       * then the node number is 1.5\n       */\n      this.calculateNodeNumbers();\n\n      if (this.project.achievements != null) {\n        this.achievements = this.project.achievements;\n      }\n    }\n\n    this.$rootScope.$broadcast('projectChanged');\n  };\n\n  calculateNodeOrderOfProject() {\n    this.calculateNodeOrder(this.rootNode);\n  }\n\n  /**\n   * Recursively calculates the node order.\n   * @param node\n   */\n  calculateNodeOrder(node) {\n    this.idToOrder[node.id] = {'order': this.nodeCount};\n    this.nodeCount++;\n    if (this.isGroupNode(node.id)) {\n      const childIds = node.ids;\n      for (let childId of childIds) {\n        const child = this.getNodeById(childId);\n        this.calculateNodeOrder(child);\n      }\n    }\n  };\n\n  /**\n   * Get the node order mappings of the project\n   * @param project the project JSOn\n   * @return an object containing the idToOrder mapping and also the array\n   * of nodes\n   */\n  getNodeOrderOfProject(project) {\n    const idToOrder = {};\n    idToOrder.nodeCount = 0;\n    const startGroupId = project.startGroupId;\n    const rootNode = this.getNodeById(startGroupId, project);\n    const stepNumber = '';\n    const nodes = [];\n    const importProjectIdToOrder = this.getNodeOrderOfProjectHelper(project, rootNode, idToOrder, stepNumber, nodes);\n    delete importProjectIdToOrder.nodeCount;\n    const result = {};\n    result.idToOrder = importProjectIdToOrder;\n    result.nodes = nodes;\n    return result;\n  }\n\n  /**\n   * Recursively traverse the project to calculate the node order and step numbers\n   * @param project the project JSON\n   * @param node the current node we are on\n   * @param idToOrder the mapping of node id to item\n   * @param stepNumber the current step number\n   * @param nodes the array of nodes\n   */\n  getNodeOrderOfProjectHelper(project, node, idToOrder, stepNumber, nodes) {\n    /*\n     * Create the item that we will add to the idToOrder mapping.\n     * The 'order' field determines how the project nodes are displayed\n     * when we flatten the project for displaying.\n     */\n    const item = {\n      'order': idToOrder.nodeCount,\n      'node': node,\n      'stepNumber': stepNumber\n    };\n\n    idToOrder[node.id] = item;\n    idToOrder.nodeCount++;\n    nodes.push(item);\n\n    if (node.type == 'group') {\n      const childIds = node.ids;\n      for (let c = 0; c < childIds.length; c++) {\n        const childId = childIds[c];\n        const child = this.getNodeById(childId, project);\n        let childStepNumber = stepNumber;\n\n        if (childStepNumber != '') {\n          // add the . separator for the step number e.g. 1.\n          childStepNumber += '.';\n        }\n\n        childStepNumber += (c + 1);\n        this.getNodeOrderOfProjectHelper(project, child, idToOrder, childStepNumber, nodes);\n      }\n    }\n    return idToOrder;\n  }\n\n  /**\n   * Returns the position in the project for the node with the given id. Returns null if no node with id exists.\n   * @param id a node id\n   * @return string position of the given node id in the project\n   */\n  getPositionById(id) {\n    for (let i = 0; i < this.rootNode.ids.length; i++) {\n      const node = this.getNodeById(this.rootNode.ids[i]);\n      const path = this.getPathToNode(node, i + 1, id);\n      if (path != undefined && path != null) {\n        return path;\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Returns the order of the given node id in the project. Returns null if no node with id exists.\n   * @param id String node id\n   * @return Number order of the given node id in the project\n   */\n  getOrderById(id) {\n    if (this.idToOrder[id]) {\n      return this.idToOrder[id].order;\n    }\n    return null;\n  };\n\n  /**\n   * Returns the id of the node with the given order in the project. Returns null if no order with node exists.\n   * @param order Number\n   * @return Number node id of the given order in the project\n   */\n  getIdByOrder(order) {\n    let nodeId = null;\n    for (let id in this.idToOrder) {\n      if (this.idToOrder[id].order === order) {\n        if (this.isGroupNode(id) && order > 1) {\n          nodeId = this.getIdByOrder(order-1);\n        } else {\n          nodeId = id;\n        }\n        break;\n      }\n    }\n    return nodeId;\n  };\n\n  /**\n   * Returns the position in the project for the branch node with the given id. Returns null if no node with id exists or node is not a branch node.\n   * @param id a node id\n   * @return string position of the given node id in the project\n   */\n  getBranchNodePositionById(id) {\n    const branches = this.getBranches();\n    let b = branches.length;\n\n    // TODO: should we localize this? should we support more than 26?\n    const integerToAlpha = function(int) {\n      const alphabet = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];\n      if (int > -1 && int < 26) {\n        return alphabet[int];\n      } else {\n        return int;\n      }\n    };\n\n    while (b--) {\n      const branch = branches[b];\n      const branchPaths = branch.branchPaths;\n      for (let p = 0; p < branchPaths.length; p++) {\n        const branchPath = branchPaths[p];\n        const nodeIndex = branchPath.indexOf(id);\n        if (nodeIndex > -1) {\n          const startPoint = branch.branchStartPoint;\n          const startPointPos = this.idToPosition[startPoint];\n          const branchPathPos = startPointPos + ' ' + integerToAlpha(p);\n          return branchPathPos + (nodeIndex+1);\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Recursively searches for the given node id from the point of the given node down and returns the path number (position)\n   * @param node a node to start searching down\n   * @param path the position of the given node\n   * @param id the node id to search for\n   * @return string path of the given node id in the project\n   */\n  getPathToNode(node, path, id) {\n    if (node.id === id) {\n      return path + '';\n    } else if (node.type === 'group') {\n      let num = 0;\n      const branches = this.getBranches();\n      for (let nodeId of node.ids) {\n        if (this.isNodeIdInABranch(branches, nodeId)) {\n          this.getBranchNodePositionById(nodeId);\n        } else {\n          ++num;\n          const pos = this.getPathToNode(this.getNodeById(nodeId), (path) + '.' + (num), id);\n          if (pos) {\n            return pos;\n          }\n        }\n      }\n    }\n  };\n\n  setIdToPosition(id, pos) {\n    if (id != null) {\n      this.idToPosition[id] = pos;\n    }\n  };\n\n  getNodePositionById(id) {\n    let position = null;\n    if (id != null) {\n      position = this.nodeIdToNumber[id];\n    }\n    return position;\n  };\n\n  getNodeIdByOrder(order) {\n    let id = null;\n    if (order != null) {\n      for (let [nodeId, value] of Object.entries(this.idToOrder)) {\n        if (value.order === order) {\n          id = nodeId;\n          break;\n        }\n      }\n    }\n    return id;\n  }\n\n  getNodeOrderById(id) {\n    let order = null;\n    if (id != null) {\n      order = this.idToOrder[id] ? this.idToOrder[id].order : null;\n    }\n    return order;\n  };\n\n  setIdToNode(id, element) {\n    if (id != null) {\n      this.idToNode[id] = element;\n    }\n  };\n\n  setIdToElement(id, element) {\n    if (id != null) {\n      this.idToElement[id] = element;\n    }\n  };\n\n  /**\n   * Replace relative asset paths with absolute paths\n   * e.g.\n   * assets/myimage.jpg\n   * will be replaced with\n   * http://wise.berkeley.edu/curriculum/123456/assets/myimage.jpg\n   * @param content a string or JSON object\n   * @return the same type of object that was passed in as the content\n   * but with relative asset paths replaced with absolute paths\n   */\n  injectAssetPaths(content) {\n    if (content != null) {\n      if (typeof content === 'object') {\n        let contentString = JSON.stringify(content);\n        if (contentString != null) {\n          // replace the relative asset paths with the absolute paths\n          contentString = this.replaceAssetPaths(contentString);\n          content = JSON.parse(contentString);\n        }\n      } else if (typeof content === 'string') {\n        // replace the relative asset paths with the absolute paths\n        content = this.replaceAssetPaths(content);\n      }\n    }\n    return content;\n  };\n\n  /**\n   * Replace the relative asset paths with absolute paths\n   * @param contentString the content string\n   * @return the content string with relative asset paths replaced\n   * with absolute asset paths\n   */\n  replaceAssetPaths(contentString) {\n    if (contentString != null) {\n      // get the content base url e.g. http://wise.berkeley.edu/curriculum/123456/\n      const contentBaseURL = this.ConfigService.getConfigParam('projectBaseURL');\n\n      // only look for string that starts with ' or \" and ends in png, jpg, jpeg, pdf, etc.\n      // the string we're looking for can't start with '/ and \"/.\n      // note that this also works for \\\"abc.png and \\'abc.png, where the quotes are escaped\n      contentString = contentString.replace(\n        new RegExp('(\\'|\\\"|\\\\\\\\\\'|\\\\\\\\\\\")[^:][^\\/]?[^\\/]?[a-zA-Z0-9@%&;\\\\._\\\\/\\\\s\\\\-]*[\\.](png|jpe?g|pdf|gif|mov|mp4|mp3|wav|swf|css|txt|json|xlsx?|doc|html.*?|js).*?(\\'|\\\"|\\\\\\\\\\'|\\\\\\\\\\\")', 'gi'),\n        (matchedString) => {\n          // once found, we prepend the contentBaseURL + \"assets/\" to the string within the quotes and keep everything else the same.\n          let delimiter = '';\n          let matchedStringWithoutQuotes = '';\n\n          if (matchedString.length > 2 && matchedString.substr(0,1) == '\\\\') {\n            // the string has escaped quotes for example \\\"hello.png\\\"\n\n            // get everything between the escaped quotes\n            matchedStringWithoutQuotes = matchedString.substr(2, matchedString.length - 4);\n\n            // get the delimiter which will be \\' or \\\"\n            delimiter = matchedString.substr(0,2);\n          } else {\n            // the string does not have escaped quotes for example \"hello.png\"\n\n            // get everything between the quotes\n            matchedStringWithoutQuotes = matchedString.substr(1, matchedString.length - 2);\n\n            // get the delimiter which will be ' or \"\n            delimiter = matchedString.substr(0,1);\n          }\n\n          if (matchedStringWithoutQuotes != null && matchedStringWithoutQuotes.length > 0 && matchedStringWithoutQuotes.charAt(0) == \"/\") {\n            /*\n             * the matched string starts with a \"/\" which means it's\n             * an absolute path and does not require path prepending\n             * so we will just return the original unmodified string\n             */\n            return delimiter + matchedStringWithoutQuotes + delimiter;\n          } else {\n            //const matchedStringWithoutFirstAndLastQuote = matchedString.substr(1, matchedString.length - 2);  // everything but the beginning and end quote (' or \")\n            // make a new string with the contentBaseURL + assets/ prepended to the path\n            return delimiter + contentBaseURL + \"assets/\" + matchedStringWithoutQuotes + delimiter;\n          }\n        }\n      );\n    }\n    return contentString;\n  };\n\n  /**\n   * Inject the ng-click attribute that will call the snipImage function\n   * @param content the content\n   * @returns the modified content\n   */\n  injectClickToSnipImage(content) {\n    if (content != null) {\n      if (typeof content === 'object') {\n        let contentString = JSON.stringify(content);\n        if (contentString != null) {\n          // replace the relative asset paths with the absolute paths\n          contentString = this.injectClickToSnipImageIntoContentString(contentString);\n\n          content = JSON.parse(contentString);\n        }\n      } else if (typeof content === 'string') {\n        // replace the relative asset paths with the absolute paths\n        content = this.injectClickToSnipImageIntoContentString(content);\n      }\n    }\n    return content;\n  }\n\n  /**\n   * Inject the ng-click attribute that will call the snipImage function\n   * @param contentString the content in string format\n   * @returns the modified content string\n   */\n  injectClickToSnipImageIntoContentString(contentString) {\n    if (contentString != null) {\n      // regex to match image elements\n      const imgMatcher = new RegExp('<img.*?src=\\\\\\\\?[\\'\"](.*?)\\\\\\\\?[\\'\"].*?>', 'gi');\n\n      // replace all instances that match\n      contentString = contentString.replace(imgMatcher,\n        (matchedString, matchGroup1) => {\n          /*\n           * insert the ng-click attribute\n           * Before: <img src=\"abc.png\"/>\n           * After: <img ng-click=\"vleController.snipImage($event)\" src=\"abc.png\" />\n           */\n          const newString = matchedString.replace('img', 'img ng-click=\\\\\\\"$emit(\\'snipImage\\', $event)\\\\\\\"');\n          return newString;\n        }\n      );\n    }\n    return contentString;\n  }\n\n  /**\n   * Returns the node specified by the nodeId\n   * @param nodeId get the node with this node id\n   * @param (optional) the project to retrieve the node from. this is used in\n   * the case when we want the node from another project such as when we are\n   * importing a step from another project\n   * Return null if nodeId param is null or the specified node does not exist in the project.\n   */\n  getNodeById(nodeId, project) {\n    if (project == null) {\n      // the project argument is null so we will get it from the current project\n      if (nodeId != null && this.idToNode[nodeId]) {\n        return this.idToNode[nodeId];\n      }\n    } else {\n      /*\n       * the project argument is not null so we will get the node from\n       * project that was passed in\n       */\n      for (let tempNode of project.nodes) {\n        if (tempNode != null && tempNode.id == nodeId) {\n          return tempNode;\n        }\n      }\n\n      for (let tempNode of project.inactiveNodes) {\n        if (tempNode != null && tempNode.id == nodeId) {\n          return tempNode;\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Returns the title of the node with the nodeId\n   * Return null if nodeId param is null or the specified node does not exist in the project.\n   */\n  getNodeTitleByNodeId(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      return node.title;\n    }\n    return null;\n  };\n\n  /**\n   * Get the node position and title\n   * @param nodeId the node id\n   * @returns the node position and title, e.g. \"1.1 Introduction\"\n   */\n  getNodePositionAndTitleByNodeId(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const position = this.getNodePositionById(nodeId);\n      if (position != null) {\n        return position + ': ' + node.title;\n      } else {\n        return node.title;\n      }\n    }\n    return null;\n  };\n\n  getNodeIconByNodeId(nodeId) {\n    const node = this.getNodeById(nodeId);\n    let nodeIcon = null;\n    if (node != null) {\n      const nodeType = node.type;\n\n      // set defaults (TODO: get from configService?)\n      const defaultName = (nodeType === 'group') ? 'explore' : 'school';\n      nodeIcon = {\n        color: 'rgba(0,0,0,0.54)',\n        type: 'font',\n        fontSet: 'material-icons',\n        fontName: defaultName,\n        imgSrc: '',\n        imgAlt: 'node icon'\n      };\n\n      // TODO: check for different statuses\n      const icons = node.icons;\n      if (!!icons && !!icons.default) {\n        const icon = icons.default;\n        nodeIcon = $.extend(true, nodeIcon, icon);\n      }\n\n      // check for empty image source\n      if (!nodeIcon.imgSrc) {\n        // revert to font icon\n        nodeIcon.type = 'font';\n      }\n    }\n    return nodeIcon;\n  };\n\n  getParentGroup(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        // Check if the node is a child of an active group.\n        const groupNodes = this.getGroupNodes();\n        for (let groupNode of groupNodes) {\n          if (this.isNodeDirectChildOfGroup(node, groupNode)) {\n            return groupNode;\n          }\n        }\n\n        // Check if the node is a child of an inactive group.\n        const inactiveGroupNodes = this.getInactiveGroupNodes();\n        for (let inactiveGroupNode of inactiveGroupNodes) {\n          if (this.isNodeDirectChildOfGroup(node, inactiveGroupNode)) {\n            return inactiveGroupNode;\n          }\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the parent group id\n   * @param nodeId the parent group id\n   * @returns the parent group id\n   */\n  getParentGroupId(nodeId) {\n    if (nodeId != null) {\n      const parentGroup = this.getParentGroup(nodeId);\n      if (parentGroup != null) {\n        return parentGroup.id;\n      }\n    }\n    return null;\n  }\n\n  getNodeDepth(nodeId, val) {\n    if (nodeId != null) {\n      let depth = (typeof val === \"number\") ? val : 0;\n      const parent = this.getParentGroup(nodeId);\n      if (parent) {\n        depth = this.getNodeDepth(parent.id, depth + 1);\n      }\n      return depth;\n    }\n    return null;\n  };\n\n  getRootNode(nodeId) {\n    const parentGroup = this.getParentGroup(nodeId);\n    if (parentGroup == null) {\n      return this.getNodeById(nodeId);\n    } else {\n      return this.getRootNode(parentGroup.id);\n    }\n    return null;\n  };\n\n  isNodeDirectChildOfGroup(node, group) {\n    if (node != null && group != null) {\n      const nodeId = node.id;\n      const groupIds = group.ids;\n\n      if (groupIds != null && groupIds.indexOf(nodeId) != -1) {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  isNodeDescendentOfGroup(node, group) {\n    if (node != null && group != null) {\n      const descendents = this.getDescendentsOfGroup(group);\n      const nodeId = node.id;\n\n      if (descendents.indexOf(nodeId) != -1) {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  getDescendentsOfGroup(group) {\n    let descendents = [];\n    if (group != null) {\n      const childIds = group.ids;\n      if (childIds != null) {\n        descendents = childIds;\n        for (let childId of childIds) {\n          const node = this.getNodeById(childId);\n          if (node != null) {\n            const childDescendents = this.getDescendentsOfGroup(node);\n            descendents = descendents.concat(childDescendents);\n          }\n        }\n      }\n    }\n    return descendents;\n  };\n\n  isStartNode(node) {\n    let result = false;\n    if (node != null) {\n      const nodeId = node.id;\n      const projectStartId = this.getStartNodeId();\n      if (nodeId === projectStartId) {\n        result = true;\n      }\n\n      const groups = this.getGroups();\n      for (let group of groups) {\n        if (group != null) {\n          const groupStartId = group.startId;\n          if (nodeId === groupStartId) {\n            result = true;\n            break;\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Returns the Project's start node id, or null if it's not defined in the project\n   */\n  getStartNodeId() {\n    const project = this.project;\n    if (project != null) {\n      return project.startNodeId;\n    }\n    return null;\n  };\n\n  /**\n   * Set the start node id\n   * @param nodeId the new start node id\n   */\n  setStartNodeId(nodeId) {\n    if (nodeId != null) {\n      const project = this.project;\n      if (project != null) {\n        project.startNodeId = nodeId;\n      }\n    }\n  }\n\n  /**\n   * Get the start group id\n   * @return the start group id\n   */\n  getStartGroupId() {\n    const project = this.project;\n    if (project != null) {\n      return project.startGroupId;\n    }\n    return null;\n  }\n\n  /**\n   * Check if the given node id is the start node id\n   * @return whether the node id is the start node id\n   */\n  isStartNodeId(nodeId) {\n    const project = this.project;\n    if (project != null) {\n      const startNodeId = project.startNodeId;\n      if (nodeId === startNodeId) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  getConstraintsForNode(node) {\n    const constraints = [];\n    const allConstraints = this.activeConstraints;\n    for (let constraint of allConstraints) {\n      if (this.isNodeAffectedByConstraint(node, constraint)) {\n        constraints.push(constraint);\n      }\n    }\n    return constraints;\n  };\n\n  /**\n   * Get the constraints authored on the node.\n   * @param nodeId The node id of the node.\n   * @return An array of constraint JSON objects.\n   */\n  getConstraintsOnNode(nodeId) {\n    let node = this.getNodeById(nodeId);\n    return node.constraints;\n  }\n\n  /**\n   * Check if a node has constraints.\n   * @param nodeId The node id of the node.\n   * @return Whether the node has constraints authored on it.\n   */\n  nodeHasConstraint(nodeId) {\n    let constraints = this.getConstraintsOnNode(nodeId);\n    if (constraints.length > 0) {\n      return true;\n    }\n    return false;\n  }\n\n  /**\n   * Order the constraints so that they show up in the same order as in the\n   * project.\n   * @param constraints An array of constraint objects.\n   * @return An array of ordered constraints.\n   */\n  orderConstraints(constraints) {\n    let orderedNodeIds = this.getFlattenedProjectAsNodeIds();\n    return constraints.sort(this.constraintsComparatorGenerator(orderedNodeIds));\n  }\n\n  /**\n   * Create the constraints comparator function that is used for sorting an\n   * array of constraint objects.\n   * @param orderedNodeIds An array of node ids in the order in which they\n   * show up in the project.\n   * @return A comparator that orders constraint objects in the order in which\n   * the target ids show up in the project.\n   */\n  constraintsComparatorGenerator(orderedNodeIds) {\n    return function(constraintA, constraintB) {\n      let constraintAIndex = orderedNodeIds.indexOf(constraintA.targetId);\n      let constraintBIndex = orderedNodeIds.indexOf(constraintB.targetId);\n      if (constraintAIndex < constraintBIndex) {\n        return -1;\n      } else if (constraintAIndex > constraintBIndex) {\n        return 1;\n      }\n      return 0;\n    }\n  }\n\n  /**\n   * Check if a node is affected by the constraint\n   * @param node check if the node is affected\n   * @param constraint the constraint that might affect the node\n   * @returns whether the node is affected by the constraint\n   */\n  isNodeAffectedByConstraint(node, constraint) {\n    let result = false;\n    if (node != null && constraint != null) {\n      // check if we have previously calculated the result before\n      const rememberedResult = this.getIsNodeAffectedByConstraintResult(node.id, constraint.id, result);\n      if (rememberedResult != null) {\n        // we have calculated the result before\n\n        // use the remembered result\n        result = rememberedResult;\n      } else {\n        // we have not calculated the result before\n        const nodeId = node.id;\n        const targetId = constraint.targetId;\n        const action = constraint.action;\n\n        if (action === 'makeAllNodesAfterThisNotVisible') {\n          if (this.isNodeIdAfter(targetId, node.id)) {\n            result = true;\n          }\n        } else if (action === 'makeAllNodesAfterThisNotVisitable') {\n          if (this.isNodeIdAfter(targetId, node.id)) {\n            result = true;\n          }\n        } else {\n          const targetNode = this.getNodeById(targetId);\n          if (targetNode != null) {\n            const nodeType = targetNode.type;\n            if (nodeType === 'node') {\n              if (nodeId === targetId) {\n                result = true;\n              }\n            } else if (nodeType === 'group') {\n              if (nodeId === targetId) {\n                result = true;\n              }\n              if (this.isNodeDescendentOfGroup(node, targetNode)) {\n                result = true;\n              }\n            }\n          }\n        }\n\n        // remember the result so we can look it up in the future\n        this.setIsNodeAffectedByConstraintResult(node.id, constraint.id, result);\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Check if a node id comes after another node id in the project\n   * @param nodeIdBefore the node id before\n   * @param nodeIdAfter the node id after\n   */\n  isNodeIdAfter(nodeIdBefore, nodeIdAfter) {\n    let result = false;\n    if (nodeIdBefore != null && nodeIdAfter != null) {\n      if (this.isApplicationNode(nodeIdBefore)) {\n        // the node id before is a step\n\n        // get all the paths from the beforeNodeId to the end of the project\n        const pathsToEnd = this.getAllPaths([], nodeIdBefore, true);\n\n        if (pathsToEnd != null) {\n          for (let pathToEnd of pathsToEnd) {\n            if (pathToEnd != null) {\n              /*\n               * remove the first node id and its parent id because\n               * we will check the remaining node ids in the array\n               * for the nodeIdAfter\n               */\n\n              // get the index of the node id before\n              const index = pathToEnd.indexOf(nodeIdBefore);\n\n              if (index != -1) {\n                // remove the node id before\n                pathToEnd.splice(index, 1);\n              }\n\n              // get the parent group of the node id before\n              const parentGroup = this.getParentGroup(nodeIdBefore);\n\n              if (parentGroup != null) {\n                // remove the parent group of the node id before\n                const parentGroupId = parentGroup.id;\n                const parentGroupIndex = pathToEnd.indexOf(parentGroupId);\n                if (parentGroupIndex != -1) {\n                  pathToEnd.splice(parentGroupIndex, 1);\n                }\n              }\n\n              if (pathToEnd.indexOf(nodeIdAfter) != -1) {\n                // we have found the nodeIdAfter in the path to the end of the project\n                result = true;\n              }\n            }\n          }\n        }\n      } else {\n        // the node id before is an activity\n\n        const group = this.getNodeById(nodeIdBefore);\n        if (group != null) {\n          const transitions = this.getTransitionsByFromNodeId(nodeIdBefore);\n          if (transitions != null) {\n            for (let transition of transitions) {\n              if (transition != null) {\n                const toNodeId = transition.to;\n\n                // get the paths between to toNodeId and the end of the project\n                const pathsToEnd = this.getAllPaths([], toNodeId, true);\n\n                for (let pathToEnd of pathsToEnd) {\n                  if (pathToEnd != null) {\n                    if (pathToEnd.indexOf(nodeIdAfter) != -1) {\n                      // we have found the nodeIdAfter in the path to the end of the project\n                      result = true;\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Get the transition logic for a node\n   * @param fromNodeId the from node id\n   * @returns the transition logic object\n   */\n  getTransitionLogicByFromNodeId(fromNodeId) {\n    if (fromNodeId != null) {\n      // get the node\n      const node = this.getNodeById(fromNodeId);\n\n      if (node != null) {\n        // get the transition logic\n        return node.transitionLogic;\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the transitions for a node\n   * @param fromNodeId the node to get transitions from\n   * @returns an array of transitions\n   */\n  getTransitionsByFromNodeId(fromNodeId) {\n    if (fromNodeId != null) {\n      // get the transition logic\n      const transitionLogic = this.getTransitionLogicByFromNodeId(fromNodeId);\n\n      if (transitionLogic != null) {\n        // get the transitions\n        return transitionLogic.transitions;\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get nodes that have a transition to the given node id\n   * @param toNodeId the node id\n   * @returns an array of node objects that transition to the\n   * given node id\n   */\n  getNodesByToNodeId(toNodeId) {\n    const nodesByToNodeId = [];\n    if (toNodeId != null) {\n      const nodes = this.project.nodes;\n      for (let node of nodes) {\n        if (this.nodeHasTransitionToNodeId(node, toNodeId)) {\n          nodesByToNodeId.push(node);\n        }\n      }\n      const inactiveNodes = this.getInactiveNodes();\n      for (let inactiveNode of inactiveNodes) {\n        if (this.nodeHasTransitionToNodeId(inactiveNode, toNodeId)) {\n          nodesByToNodeId.push(inactiveNode);\n        }\n      }\n    }\n    return nodesByToNodeId;\n  };\n\n  /**\n   * Check if a node has a transition to the given nodeId.\n   * @param node The node to check.\n   * @param toNodeId We are looking for a transition to this node id.\n   * @returns Whether the node has a transition to the given nodeId.\n   */\n  nodeHasTransitionToNodeId(node, toNodeId) {\n    const transitionLogic = node.transitionLogic;\n    if (transitionLogic != null) {\n      const transitions = transitionLogic.transitions;\n      if (transitions != null) {\n        for (let transition of transitions) {\n          if (transition != null) {\n            if (toNodeId === transition.to) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get node ids of all the nodes that have a to transition to the given node id\n   * @param toNodeId\n   * @returns all the node ids that have a transition to the given node id\n   */\n  getNodeIdsByToNodeId(toNodeId) {\n    const nodeIds = [];\n    const nodes = this.getNodesByToNodeId(toNodeId);\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          nodeIds.push(node.id);\n        }\n      }\n    }\n    return nodeIds;\n  }\n\n  /**\n   * Get the group nodes that point to a given node id\n   * @param toNodeId\n   */\n  getGroupNodesByToNodeId(toNodeId) {\n    const groupsThatPointToNodeId = [];\n    if (toNodeId != null) {\n      const groups = this.getGroups();\n      for (let group of groups) {\n        if (group != null) {\n          if (this.hasTransitionTo(group, toNodeId)) {\n            groupsThatPointToNodeId.push(group);\n          }\n        }\n      }\n    }\n    return groupsThatPointToNodeId;\n  }\n\n  /**\n   * Check if a node has a transition to a node id\n   * @param node check if this node has a transition to the node id\n   * @param toNodeId we will look for a transition to this node id\n   * @returns whether the node has a transition to the node id\n   */\n  hasTransitionTo(node, toNodeId) {\n    if (node != null && toNodeId != null) {\n      const transitionLogic = node.transitionLogic;\n      if (transitionLogic != null) {\n        const transitions = transitionLogic.transitions;\n        if (transitions != null) {\n          for (let transition of transitions) {\n            if (toNodeId === transition.to) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the transitions that traverse from the fromNodeId and to the toNodeId\n   * @param fromNodeId the from node id\n   * @param toNodeId the to node id\n   * @returns an array of transitions that traverse from the fromNodeId and\n   * to the toNodeId\n   */\n  getTransitionsByFromAndToNodeId(fromNodeId, toNodeId) {\n    const transitionsResults = [];\n    if (fromNodeId != null && toNodeId != null) {\n      const node = this.getNodeById(fromNodeId);\n      if (node != null) {\n        const transitionLogic = node.transitionLogic;\n        if (transitionLogic != null) {\n          const transitions = transitionLogic.transitions;\n          if (transitions != null) {\n            for (let transition of transitions) {\n              if (transition != null) {\n                const to = transition.to;\n                if (toNodeId === to) {\n                  transitionsResults.push(transition);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return transitionsResults;\n  };\n\n  /**\n   * Retrieves the project JSON from Config.projectURL and returns it.\n   * If Config.projectURL is undefined, returns null.\n   */\n  retrieveProject() {\n    let projectURL = this.ConfigService.getConfigParam('projectURL');\n    if (projectURL == null) {\n      return null;\n    } else {\n      /*\n       * add a unique GET parameter value so that it always retrieves the\n       * latest version of the project file from the server and never\n       * retrieves the project from cache.\n       */\n      projectURL += '?noCache=' + (new Date()).getTime();\n    }\n\n    return this.$http.get(projectURL).then((result) => {\n      const projectJSON = result.data;\n      this.setProject(projectJSON);\n      return projectJSON;\n    });\n  };\n\n  /**\n   * Retrieve the project JSON\n   * @param projectId retrieve the project JSON with this id\n   * @return a promise to return the project JSON\n   */\n  retrieveProjectById(projectId) {\n    if (projectId != null) {\n      // get the config URL for the project\n      const configURL = window.configURL + '/' + projectId;\n\n      // get the config for the project\n      return this.$http.get(configURL).then((result) => {\n        const configJSON = result.data;\n\n        if (configJSON != null) {\n          // get the project URL and preview project URL\n          const projectURL = configJSON.projectURL;\n          const previewProjectURL = configJSON.previewProjectURL;\n\n          if (projectURL != null) {\n            // get the project JSON\n            return this.$http.get(projectURL).then((result) => {\n              const projectJSON = result.data;\n\n              /*\n               * set the preview project URL into the project JSON\n               * so that we easily obtain the preview project URL\n               * later\n               */\n              projectJSON.previewProjectURL = previewProjectURL;\n\n              return projectJSON;\n            });\n          }\n        }\n      });\n    }\n  }\n\n  /**\n   * Saves the project to Config.saveProjectURL and returns commit history promise.\n   * if Config.saveProjectURL or Config.projectId are undefined, does not save and returns null\n   */\n  saveProject(commitMessage = \"\") {\n    this.$rootScope.$broadcast('savingProject');\n    // perform any cleanup before saving the project\n    this.cleanupBeforeSave();\n\n    const projectId = this.ConfigService.getProjectId();\n    const saveProjectURL = this.ConfigService.getConfigParam('saveProjectURL');\n    if (projectId == null || saveProjectURL == null) {\n      return null;\n    }\n\n    // Get the project from this service\n    const projectJSONString = angular.toJson(this.project, 4);\n\n    const httpParams = {};\n    httpParams.method = 'POST';\n    httpParams.url = saveProjectURL;\n    httpParams.headers = {'Content-Type': 'application/x-www-form-urlencoded'};\n\n    const params = {};\n    params.projectId = projectId;\n    params.commitMessage = commitMessage;\n    params.projectJSONString = projectJSONString;\n    httpParams.data = $.param(params);\n\n    return this.$http(httpParams).then((result) => {\n      const commitHistory = result.data;\n      this.$rootScope.$broadcast('projectSaved');\n      return commitHistory;\n    });\n  };\n\n  /**\n   * Perform any necessary cleanup before we save the project.\n   * For example we need to remove the checked field in the inactive node\n   * objects.\n   */\n  cleanupBeforeSave() {\n    let activeNodes = this.getActiveNodes();\n    for (let activeNode of activeNodes) {\n      this.cleanupNode(activeNode);\n    }\n\n    let inactiveNodes = this.getInactiveNodes();\n    for (let inactiveNode of inactiveNodes) {\n      this.cleanupNode(inactiveNode);\n    }\n  }\n\n  /**\n   * Remove any fields that are used temporarily for display purposes.\n   * @param node The node object.\n   */\n  cleanupNode(node) {\n    /*\n     * Remove fields that are added when the project is loaded in the authoring\n     * tool and grading tool.\n     */\n    delete node.checked;\n    delete node.hasWork;\n    delete node.hasAlert;\n    delete node.hasNewAlert;\n    delete node.isVisible;\n    delete node.completionStatus;\n    delete node.score;\n    delete node.hasScore;\n    delete node.maxScore;\n    delete node.hasMaxScore;\n    delete node.scorePct;\n    delete node.order;\n    delete node.show;\n\n    let components = node.components;\n    // activity nodes do not have components but step nodes do have components\n    if (components != null) {\n      for (let component of components) {\n        this.cleanupComponent(component);\n      }\n    }\n  }\n\n  /**\n   * Remove any fields that are used temporarily for display purposes.\n   * @param component The component object.\n   */\n  cleanupComponent(component) {\n    /*\n     * Remove fields that are added when the project is loaded in the authoring\n     * tool and grading tool.\n     */\n    delete component.checked;\n    delete component.hasWork;\n  }\n\n  /**\n   * Returns the theme path for the current project\n   */\n  getThemePath() {\n    let wiseBaseURL = this.ConfigService.getWISEBaseURL();\n    let project = this.project;\n    if (project && project.theme) {\n      // TODO: check if this is a valid theme (using ConfigService) rather than just truthy\n      return wiseBaseURL + '/wise5/themes/' + project.theme;\n    } else {\n      // TODO: get default theme name from ConfigService\n      return wiseBaseURL + '/wise5/themes/default';\n    }\n  };\n\n  /**\n   * Returns the theme settings for the current project\n   */\n  getThemeSettings() {\n    let themeSettings = {};\n    let project = this.project;\n    if (project && project.themeSettings) {\n      if (project.theme) {\n        // TODO: check if this is a valid theme (using ConfigService) rather than just truthy\n        themeSettings = project.themeSettings[project.theme];\n      } else {\n        // TODO: get default theme name from ConfigService\n        themeSettings = project.themeSettings[\"default\"];\n      }\n    }\n    return themeSettings ? themeSettings : {};\n  };\n\n  /**\n   * Flatten the project to obtain a list of node ids\n   * @param recalculate Whether to force recalculating the flattened node ids.\n   * @return An array of the flattened node ids in the project.\n   */\n  getFlattenedProjectAsNodeIds(recalculate) {\n    if (!recalculate && this.flattenedProjectAsNodeIds != null) {\n      // use the previously calculated flattened node ids\n      return this.flattenedProjectAsNodeIds;\n    }\n\n    // get the start node id\n    const startNodeId = this.getStartNodeId();\n\n    /*\n     * an array to keep track of the node ids in the path that\n     * we are currently on as we traverse the nodes in the project\n     * depth first\n     */\n    const pathsSoFar = [];\n\n    // get all the possible paths through the project\n    const allPaths = this.getAllPaths(pathsSoFar, startNodeId);\n\n    // consolidate all the paths to create a single list of node ids\n    const nodeIds = this.consolidatePaths(allPaths);\n\n    /*\n     * Remember the flattened node ids so that we don't have to calculate\n     * it again.\n     */\n    this.flattenedProjectAsNodeIds = nodeIds;\n\n    return nodeIds;\n  };\n\n  /**\n   * Get all the possible paths through the project. This function\n   * recursively calls itself to traverse the project depth first.\n   * @param pathSoFar the node ids in the path so far. the node ids\n   * in this array are referenced to make sure we don't loop back\n   * on the path.\n   * @param nodeId the node id we want to get the paths from\n   * @param includeGroups whether to include the group node ids in the paths\n   * @return an array of paths. each path is an array of node ids.\n   */\n  getAllPaths(pathSoFar, nodeId, includeGroups) {\n    const allPaths = [];\n    if (nodeId != null) {\n      if (this.isApplicationNode(nodeId)) {\n        const path = [];\n        const transitions = this.getTransitionsByFromNodeId(nodeId);\n        if (transitions != null) {\n          if (includeGroups) {\n            const parentGroup = this.getParentGroup(nodeId);\n            if (parentGroup != null) {\n              const parentGroupId = parentGroup.id;\n              if (parentGroupId != null && pathSoFar.indexOf(parentGroupId) == -1) {\n                pathSoFar.push(parentGroup.id);\n              }\n            }\n          }\n\n          /*\n           * add the node id to the path so far so we can later check\n           * which nodes are already in the path to prevent looping\n           * back in the path\n           */\n          pathSoFar.push(nodeId);\n\n          if (transitions.length === 0) {\n            /*\n             * there are no transitions from the node id so we will\n             * look for a transition in the parent group\n             */\n\n            let addedCurrentNodeId = false;\n            const parentGroupId = this.getParentGroupId(nodeId);\n            const parentGroupTransitions = this.getTransitionsByFromNodeId(parentGroupId);\n\n            if (parentGroupTransitions != null) {\n              for (let parentGroupTransition of parentGroupTransitions) {\n                if (parentGroupTransition != null) {\n                  const toNodeId = parentGroupTransition.to;\n                  if (pathSoFar.indexOf(toNodeId) == -1) {\n                    /*\n                     * recursively get the paths by getting all\n                     * the paths for the to node\n                     */\n                    const allPathsFromToNode = this.getAllPaths(pathSoFar, toNodeId, includeGroups);\n\n                    for (let tempPath of allPathsFromToNode) {\n                      tempPath.unshift(nodeId);\n                      allPaths.push(tempPath);\n                      addedCurrentNodeId = true;\n                    }\n                  }\n                }\n              }\n            }\n\n            if (!addedCurrentNodeId) {\n              /*\n               * if the parent group doesn't have any transitions we will\n               * need to add the current node id to the path\n               */\n              path.push(nodeId);\n              allPaths.push(path);\n            }\n          } else {\n            // there are transitions from this node id\n\n            for (let transition of transitions) {\n              if (transition != null) {\n                const toNodeId = transition.to;\n                if (toNodeId != null && pathSoFar.indexOf(toNodeId) == -1) {\n                  // we have not found the to node in the path yet so we can traverse it\n\n                  /*\n                   * recursively get the paths by getting all\n                   * the paths from the to node\n                   */\n                  const allPathsFromToNode = this.getAllPaths(pathSoFar, toNodeId, includeGroups);\n\n                  if (allPathsFromToNode != null) {\n                    for (let tempPath of allPathsFromToNode) {\n                      if (includeGroups) {\n                        // we need to add the group id to the path\n\n                        if (tempPath.length > 0) {\n                          const firstNodeId = tempPath[0];\n                          const firstParentGroupId = this.getParentGroupId(firstNodeId);\n                          const parentGroupId = this.getParentGroupId(nodeId);\n                          if (parentGroupId != firstParentGroupId) {\n                            /*\n                             * the parent ids are different which means this is a boundary\n                             * between two groups. for example if the project looked like\n                             * group1>node1>node2>group2>node3>node4\n                             * and the current node was node2 then the first node in the\n                             * path would be node3 which means we would need to place\n                             * group2 on the path before node3\n                             */\n                            tempPath.unshift(firstParentGroupId);\n                          }\n                        }\n                      }\n\n                      tempPath.unshift(nodeId);\n                      allPaths.push(tempPath);\n                    }\n                  }\n                } else {\n                  /*\n                   * the node is already in the path so far which means\n                   * the transition is looping back to a previous node.\n                   * we do not want to take this transition because\n                   * it will lead to an infinite loop. we will just\n                   * add the current node id to the path and not take\n                   * the transition which essentially ends the path.\n                   */\n                  path.push(nodeId);\n                  allPaths.push(path);\n                }\n              }\n            }\n          }\n\n          if (pathSoFar.length > 0) {\n            const lastNodeId = pathSoFar[pathSoFar.length - 1];\n            if (this.isGroupNode(lastNodeId)) {\n              /*\n               * the last node id is a group id so we will remove it\n               * since we are moving back up the path as we traverse\n               * the nodes depth first\n               */\n              pathSoFar.pop();\n            }\n          }\n\n          /*\n           * remove the latest node id (this will be a step node id)\n           * since we are moving back up the path as we traverse the\n           * nodes depth first\n           */\n          pathSoFar.pop();\n\n          if (includeGroups) {\n            if (pathSoFar.length == 1) {\n              /*\n               * we are including groups and we have traversed\n               * back up to the start node id for the project.\n               * the only node id left in pathSoFar is now the\n               * parent group of the start node id. we will\n               * now add this parent group of the start node id\n               * to all of the paths\n               */\n\n              for (let path of allPaths) {\n                if (path != null) {\n                  /*\n                   * prepend the parent group of the start node id\n                   * to the path\n                   */\n                  path.unshift(pathSoFar[0]);\n                }\n              }\n\n              /*\n               * remove the parent group of the start node id from\n               * pathSoFar which leaves us with an empty pathSoFar\n               * which means we are completely done with\n               * calculating all the paths\n               */\n              pathSoFar.pop();\n            }\n          }\n        }\n      } else if (this.isGroupNode(nodeId)) {\n\n        /*\n         * add the node id to the path so far so we can later check\n         * which nodes are already in the path to prevent looping\n         * back in the path\n         */\n        pathSoFar.push(nodeId);\n\n        const groupNode = this.getNodeById(nodeId);\n        if (groupNode != null) {\n          const startId = groupNode.startId;\n          if (startId == null || startId == \"\") {\n            // there is no start id so we will take the transition from the group\n            // TODO? there is no start id so we will loop through all the child nodes\n\n            const transitions = this.getTransitionsByFromNodeId(groupNode.id);\n            if (transitions != null && transitions.length > 0) {\n              for (let transition of transitions) {\n                if (transition != null) {\n                  const toNodeId = transition.to;\n\n                  const allPathsFromToNode = this.getAllPaths(pathSoFar, toNodeId, includeGroups);\n\n                  if (allPathsFromToNode != null) {\n                    for (let tempPath of allPathsFromToNode) {\n                      tempPath.unshift(nodeId);\n                      allPaths.push(tempPath);\n                    }\n                  }\n                }\n              }\n            } else {\n              /*\n               * this activity does not have any transitions so\n               * we have reached the end of this path\n               */\n\n              const tempPath = [];\n              tempPath.unshift(nodeId);\n              allPaths.push(tempPath);\n            }\n          } else {\n            // there is a start id so we will traverse it\n\n            const allPathsFromToNode = this.getAllPaths(pathSoFar, startId, includeGroups);\n\n            if (allPathsFromToNode != null) {\n              for (let tempPath of allPathsFromToNode) {\n                tempPath.unshift(nodeId);\n                allPaths.push(tempPath);\n              }\n            }\n          }\n        }\n\n        /*\n         * remove the latest node id since we are moving back\n         * up the path as we traverse the nodes depth first\n         */\n        pathSoFar.pop();\n      }\n    }\n    return allPaths;\n  };\n\n  /**\n   * Consolidate all the paths into a linear list of node ids\n   * @param paths an array of paths. each path is an array of node ids.\n   * @return an array of node ids that have been properly ordered\n   */\n  consolidatePaths(paths) {\n    let consolidatedPath = [];\n\n    if (paths != null) {\n      /*\n       * continue until all the paths are empty. as we consolidate\n       * node ids, we will remove them from the paths. once all the\n       * paths are empty we will be done consolidating the paths.\n       */\n      while(!this.arePathsEmpty(paths)) {\n        // start with the first path\n        const currentPath = this.getNonEmptyPathIndex(paths);\n\n        // get the first node id in the current path\n        const nodeId = this.getFirstNodeIdInPathAtIndex(paths, currentPath);\n        if (this.areFirstNodeIdsInPathsTheSame(paths)) {\n          // the first node ids in all the paths are the same\n\n          // remove the node id from all the paths\n          this.removeNodeIdFromPaths(nodeId, paths);\n\n          // add the node id to our consolidated path\n          consolidatedPath.push(nodeId);\n        } else {\n          // not all the top node ids are the same which means we have branched\n\n          // get all the paths that contain the node id\n          const pathsThatContainNodeId = this.getPathsThatContainNodeId(nodeId, paths);\n\n          if (pathsThatContainNodeId != null) {\n            if (pathsThatContainNodeId.length === 1) {\n              // only the current path we are on has the node id\n\n              // remove the node id from the path\n              this.removeNodeIdFromPath(nodeId, paths, currentPath);\n\n              // add the node id to our consolidated path\n              consolidatedPath.push(nodeId);\n            } else {\n              // there are multiple paths that have this node id\n\n              // consume all the node ids up to the given node id\n              const consumedPath = this.consumePathsUntilNodeId(paths, nodeId);\n\n              // remove the node id from the paths\n              this.removeNodeIdFromPaths(nodeId, paths);\n\n              // add the node id to the end of the consumed path\n              consumedPath.push(nodeId);\n\n              // add the consumed path to our consolidated path\n              consolidatedPath = consolidatedPath.concat(consumedPath);\n            }\n          }\n        }\n      }\n    }\n    return consolidatedPath;\n  };\n\n  /**\n   * Consume the node ids in the paths until we get to the given node id\n   * @param paths the paths to consume\n   * @param nodeId the node id to stop consuming at\n   * @return an array of node ids that we have consumed\n   */\n  consumePathsUntilNodeId(paths, nodeId) {\n    let consumedNodeIds = [];\n\n    if (paths != null && nodeId != null) {\n      for (let p = 0; p < paths.length; p++) {\n        const path = paths[p];\n\n        // check if the path contains the node id to stop consuming at\n        if (path != null && path.indexOf(nodeId) != -1) {\n          /*\n           * the path does contain the node id to stop consuming at\n           * so we will consume the node ids in this path until\n           * we get to the given node id to stop consuming at\n           */\n\n          for (let x = 0; x < path.length; x++) {\n            const tempNodeId = path[x];\n\n            if (nodeId === tempNodeId) {\n              /*\n               * the node id is the same as the one we need to\n               * stop consuming at so we will stop looking\n               * at this path\n               */\n              break;\n            } else {\n              /*\n               * the node id is not the one that we need to stop consuming at\n               * so we will consume it\n               */\n\n              // get all the paths that contain the node id\n              const pathsThatContainNodeId = this.getPathsThatContainNodeId(tempNodeId, paths);\n\n              if (pathsThatContainNodeId.length === 1) {\n                // there is only one path with this node id\n\n                // remove the node id from the path\n                this.removeNodeIdFromPath(tempNodeId, paths, p);\n\n                // move the counter back one since we have just removed a node id\n                x--;\n\n                // add the node id to the consumed node ids array\n                consumedNodeIds.push(tempNodeId);\n              } else {\n                // there are multiple paths with this node id\n\n                // tempNodeId must come before nodeId\n\n                const pathsToConsume = [];\n\n                for (let pathThatContainsNodeId of pathsThatContainNodeId) {\n                  // get the index of the node id we want to remove\n                  const tempNodeIdIndex = pathThatContainsNodeId.indexOf(tempNodeId);\n\n                  // get the index of the node id we want to stop consuming at\n                  const nodeIdIndex = pathThatContainsNodeId.indexOf(nodeId);\n\n                  /*\n                   * check if the node id we want to remove comes before\n                   * the node id we want to stop consuming at. we need to\n                   * do this to prevent an infinite loop. an example of\n                   * when this can happen is if there are two paths\n                   *\n                   * path1 = 1, 2, 3, 4, 5\n                   * path2 = 1, 2, 4, 3, 5\n                   *\n                   * as we consume path1 we will need to consume 3. in order to\n                   * consume 3, we must consume consume up to 3 in path2.\n                   * in order to consume up to 3 in path2 we must consume 4.\n                   * in order to consume 4, we must consume everything before\n                   * 4 in path1. everything before 4 in path1 is 1, 2, 3.\n                   * this means we need to consume 3 which brings us back up\n                   * to the top of this paragraph creating an infinite loop.\n                   *\n                   * this check below will prevent infinite loops by only\n                   * adding paths that have the tempNodeId come before the\n                   * nodeId to stop consuming at.\n                   */\n                  if (tempNodeIdIndex < nodeIdIndex) {\n                    pathsToConsume.push(pathThatContainsNodeId);\n                  }\n                }\n\n                /*\n                 * take the paths that contain the given node id and consume\n                 * the paths until the given node id\n                 */\n                const tempConsumedNodeIds = this.consumePathsUntilNodeId(pathsToConsume, tempNodeId);\n\n                // remove the node id from the paths that contain it\n                this.removeNodeIdFromPaths(tempNodeId, pathsThatContainNodeId);\n\n                // add the temp consumed node ids to our consumed node ids array\n                consumedNodeIds = consumedNodeIds.concat(tempConsumedNodeIds);\n\n                // move the counter back one since we have just removed a node id\n                x--;\n\n                // add the node id to the consumed node ids array\n                consumedNodeIds.push(tempNodeId);\n              }\n            }\n          }\n        }\n      }\n    }\n    return consumedNodeIds;\n  };\n\n  /**\n   * Get the path at the given index and get the first node id in\n   * the path\n   * @param paths an array of paths. each path is an array of node ids\n   * @param index the index of the path we want\n   * @return the first node in the given path\n   */\n  getFirstNodeIdInPathAtIndex(paths, index) {\n    let nodeId = null;\n    if (paths != null && index != null) {\n      const path = paths[index];\n      if (path != null && path.length > 0) {\n        nodeId = path[0];\n      }\n    }\n    return nodeId;\n  };\n\n  /**\n   * Remove the node ifrom the paths\n   * @param nodeId the node id to remove\n   * @param paths an array of paths. each path is an array of node ids\n   */\n  removeNodeIdFromPaths(nodeId, paths) {\n    if (nodeId != null && paths != null) {\n      for (let path of paths) {\n        for (let x = 0; x < path.length; x++) {\n          const tempNodeId = path[x];\n\n          /*\n           * check if the node id matches the one we are looking\n           * for\n           */\n          if (nodeId === tempNodeId) {\n            /*\n             * we have found the node id we are looking for so\n             * we will remove it from the path\n             */\n            path.splice(x, 1);\n\n            /*\n             * move the counter back since we just removed a\n             * node id. we will continue searching this path\n             * for the node id in case the path contains it\n             * multiple times.\n             */\n            x--;\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Remove the node id from the path\n   * @param nodeId the node id to remove\n   * @param paths an array of paths. each path is an array of node ids\n   * @param pathIndex the path to remove from\n   */\n  removeNodeIdFromPath(nodeId, paths, pathIndex) {\n    if (nodeId != null && paths != null && pathIndex != null) {\n      const path = paths[pathIndex];\n      if (path != null) {\n        for (let x = 0; x < path.length; x++) {\n          const tempNodeId = path[x];\n\n          /*\n           * check if the node id matches the one we are looking\n           * for\n           */\n          if (nodeId === tempNodeId) {\n            /*\n             * we have found the node id we are looking for so\n             * we will remove it from the path\n             */\n            path.splice(x, 1);\n\n            /*\n             * move the counter back since we just removed a\n             * node id. we will continue searching this path\n             * for the node id in case the path contains it\n             * multiple times.\n             */\n            x--;\n          }\n        }\n      }\n    }\n  };\n\n  /**\n   * Check if the first node ids in the paths are the same\n   * @param paths an array of paths. each path is an array of node ids\n   * @return whether all the paths have the same first node id\n   */\n  areFirstNodeIdsInPathsTheSame(paths) {\n    let result = true;\n    let nodeId = null;\n    if (paths != null) {\n      for (let path of paths) {\n        const tempNodeId = path[0];\n        if (nodeId == null) {\n          /*\n           * this is the first path we have looked at so we will\n           * remember the node id\n           */\n          nodeId = tempNodeId;\n        } else if (nodeId != tempNodeId) {\n          /*\n           * the node id does not match the first node id from a\n           * previous path so the paths do not all have the same\n           * first node id\n           */\n          result = false;\n          break;\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Check if all the paths are empty\n   * @param paths an array of paths. each path is an array of node ids\n   * @return whether all the paths are empty\n   */\n  arePathsEmpty(paths) {\n    if (paths != null) {\n      for (let path of paths) {\n        if (path != null) {\n          if (path.length !== 0) {\n            return false;\n          }\n        }\n      }\n    }\n    return true;\n  };\n\n  /**\n   * Get the paths that contain the node id\n   * @param nodeId the node id we are looking for\n   * @param paths an array of paths. each path is an array of node ids\n   * @return an array of paths that contain the given node id\n   */\n  getPathsThatContainNodeId(nodeId, paths) {\n    const pathsThatContainNodeId = [];\n    if (nodeId != null && paths != null) {\n      for (let path of paths) {\n        // check if the path contains the node id\n        if (path.indexOf(nodeId) != -1) {\n          /*\n           * add the path to the array of paths that contain\n           * the node id\n           */\n          pathsThatContainNodeId.push(path);\n        }\n      }\n    }\n    return pathsThatContainNodeId;\n  };\n\n  /**\n   * Get a non empty path index. It will loop through the paths and\n   * return the index of the first non empty path.\n   * @param paths an array of paths. each path is an array of node ids\n   * @return the index of the path that is not empty\n   */\n  getNonEmptyPathIndex(paths) {\n    if (paths != null) {\n      for (let p = 0; p < paths.length; p++) {\n        const path = paths[p];\n        if (path.length !== 0) {\n          return p;\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Remember the branches.\n   * @param branches An array of arrays of node ids.\n   */\n  setBranchesCache(branches) {\n    this.branchesCache = branches;\n  }\n\n  /**\n   * Get the branches that were previously calculated.\n   * @returns An array of arrays of node ids.\n   */\n  getBranchesCache() {\n    return this.branchesCache;\n  }\n\n  /**\n   * Remove the branches cache.\n   */\n  clearBranchesCache() {\n    this.branchesCache = null;\n  }\n\n  /**\n   * Get the branches in the project\n   */\n  getBranches() {\n    /*\n     * Do not use the branches cache in the authoring tool because the branches\n     * may change when the author changes the project. In all other modes the\n     * branches can't change so we can use the cache.\n     */\n    if (this.ConfigService.getMode() != 'author') {\n      let branchesCache = this.getBranchesCache();\n      if (branchesCache != null) {\n        return branchesCache;\n      }\n    }\n\n    const startNodeId = this.getStartNodeId();\n\n    /*\n     * an array to keep track of the node ids in the path that\n     * we are currently on as we traverse the nodes in the project\n     * depth first\n     */\n    const pathsSoFar = [];\n\n    const allPaths = this.getAllPaths(pathsSoFar, startNodeId);\n    const branches = this.findBranches(allPaths);\n    if (this.ConfigService.getMode() != 'author') {\n      this.setBranchesCache(branches);\n    }\n    return branches;\n  };\n\n  /**\n   * Find the branches in the project\n   * @param paths all the possible paths through the project\n   * @return an array of branch objects. each branch object contains\n   * the branch start point, the branch paths, and the branch\n   * end point\n   */\n  findBranches(paths) {\n    let branches = [];\n    let previousNodeId = null;\n\n    /*\n     * continue until all the paths are empty. we will remove\n     * node ids from the paths as we traverse the paths to find\n     * the branches\n     */\n    while (!this.arePathsEmpty(paths)) {\n      const nodeId = this.getFirstNodeIdInPathAtIndex(paths, 0);\n\n      if (this.areFirstNodeIdsInPathsTheSame(paths)) {\n        // the first node ids in all the paths are the same\n\n        this.removeNodeIdFromPaths(nodeId, paths);\n        previousNodeId = nodeId;\n      } else {\n        // not all the top node ids are the same which means we have branched\n\n        const branchMetaObject = this.createBranchMetaObject(previousNodeId);\n        branchMetaObject.branchStartPoint = previousNodeId;\n\n        const nextCommonNodeId = this.findNextCommonNodeId(paths);\n        branchMetaObject.branchEndPoint = nextCommonNodeId;\n\n        let branchPaths = this.extractPathsUpToNodeId(paths, nextCommonNodeId);\n        branchPaths = this.removeDuplicatePaths(branchPaths);\n        branchMetaObject.branchPaths = branchPaths;\n        branches.push(branchMetaObject);\n\n        // trim the paths so that they start at the branch end point\n        this.trimPathsUpToNodeId(paths, nextCommonNodeId);\n\n        // remember this node id for the next iteration of the loop\n        previousNodeId = nextCommonNodeId;\n      }\n    }\n    return branches;\n  };\n\n  /**\n   * Create a branch meta object that will contain the branch start\n   * point, branch paths, and branch end point\n   * @return an object that contains a branch start point, branch paths,\n   * and a branch end point\n   */\n  createBranchMetaObject() {\n    const branchMetaObject = {};\n    branchMetaObject.branchStartPoint = null;\n    branchMetaObject.branchPaths = [];\n    branchMetaObject.branchEndPoint = null;\n    return branchMetaObject;\n  };\n\n  /**\n   * Find the next common node id in all the paths\n   * @param paths the paths to find the common node id in\n   * @return a node id that is in all the paths or null\n   * if there is no node id that is in all the paths\n   */\n  findNextCommonNodeId(paths) {\n    let nextCommonNodeId = null;\n    if (paths != null) {\n      if (paths.length > 0) {\n        const path = paths[0];\n\n        for (let tempNodeId of path) {\n          if (this.allPathsContainNodeId(paths, tempNodeId)) {\n            /*\n             * the node id is in all the paths so we have found\n             * what we were looking for\n             */\n            nextCommonNodeId = tempNodeId;\n            break;\n          }\n        }\n      }\n    }\n    return nextCommonNodeId;\n  };\n\n  /**\n   * Check if all the paths contain the node id\n   * @param paths an array of paths. each path contains an array of node ids\n   * @param nodeId the node id that we will check is in all the paths\n   * @return whether the node id is in all the paths\n   */\n  allPathsContainNodeId(paths, nodeId) {\n    let result = false;\n    if (paths != null) {\n      for (let path of paths) {\n        const index = path.indexOf(nodeId);\n        if (index == -1) {\n          result = false;\n          break;\n        } else {\n          result = true;\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Trim the paths up to the given node id so that the paths will contain\n   * the given node id and all the node ids after it. This function will\n   * modify the paths.\n   * @param paths the paths to trim\n   * @param nodeId the node id to trim up to\n   */\n  trimPathsUpToNodeId(paths, nodeId) {\n    if (paths != null) {\n      for (let path of paths) {\n        if (path != null) {\n          let index = path.indexOf(nodeId);\n\n          if (index == -1) {\n            /*\n             * the node id is not in the path so we will\n             * trim the path to the end which will make\n             * the path empty\n             */\n            index = path.length;\n          }\n\n          /*\n           * trim the path up to the node id index. this will\n           * modify the path array.\n           */\n          path.splice(0, index);\n        }\n      }\n    }\n  };\n\n\n  /**\n   * Extract the paths up to a given node id. This will be used to\n   * obtain branch paths.\n   * @param paths the paths to extract from\n   * @param nodeId the node id to extract up to\n   * @return paths that go up to but do not include the node id\n   */\n  extractPathsUpToNodeId(paths, nodeId) {\n    const extractedPaths = [];\n    if (paths != null) {\n      for (let path of paths) {\n        if (path != null) {\n          let index = path.indexOf(nodeId);\n\n          if (index == -1) {\n            /*\n             * the node id is not in the path so we will\n             * extract up to the end of the path\n             */\n            index = path.length;\n          }\n\n          /*\n           * get the path up to the node id index. this does\n           * not modify the path array.\n           */\n          const extractedPath = path.slice(0, index);\n\n          extractedPaths.push(extractedPath);\n        }\n      }\n    }\n    return extractedPaths;\n  };\n\n  /**\n   * Removes duplicate paths\n   * @param paths an array of paths. each path contains an array of node ids\n   * @return an array of unique paths\n   */\n  removeDuplicatePaths(paths) {\n    const uniquePaths = [];\n    if (paths != null) {\n      for (let path of paths) {\n        let isPathInUniquePaths = false;\n        for (let uniquePath of uniquePaths) {\n          if (this.pathsEqual(path, uniquePath)) {\n            isPathInUniquePaths = true;\n          }\n        }\n\n        if (!isPathInUniquePaths) {\n          // the path is not equal to any paths in the unique\n          // paths array so we will add it to the unique paths array\n          uniquePaths.push(path);\n        }\n      }\n    }\n    return uniquePaths;\n  };\n\n  /**\n   * Check if two paths are equal\n   * @param path1 an array of node ids\n   * @param path2 an array of node ids\n   * @return whether the two paths contain the same node ids\n   * in the same order\n   */\n  pathsEqual(path1, path2) {\n    let result = false;\n    if (path1 != null && path2 != null) {\n      if (path1.length === path2.length) {\n        result = true;\n\n        for (let x = 0; x < path1.length; x++) {\n          const path1NodeId = path1[x];\n          const path2NodeId = path2[x];\n          if (path1NodeId !== path2NodeId) {\n            result = false;\n            break;\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Check if a node id is in any branch\n   * @param branches an array of branch objects\n   * @param nodeId the node id to check\n   * @return whether the node id is in any branch\n   */\n  isNodeIdInABranch(branches, nodeId) {\n    if (branches != null && nodeId != null) {\n      for (let branch of branches) {\n        if (branch != null) {\n          const branchPaths = branch.branchPaths;\n          if (branchPaths != null) {\n            for (let branchPath of branchPaths) {\n              if (branchPath != null) {\n                const index = branchPath.indexOf(nodeId);\n                if (index != -1) {\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Get the branch paths that a node id is in\n   * @param branches an array of branch objects\n   * @param nodeId the node id to check\n   * @return an array of the branch paths that the node id is in\n   */\n  getBranchPathsByNodeId(branches, nodeId) {\n    const branchPathsIn = [];\n    if (branches != null && nodeId != null) {\n      for (let branch of branches) {\n        if (branch != null) {\n          const branchPaths = branch.branchPaths;\n          if (branchPaths != null) {\n            for (let branchPath of branchPaths) {\n              if (branchPath != null) {\n                const index = branchPath.indexOf(nodeId);\n                if (index != -1) {\n                  /*\n                   * the node is in this branch path so we will\n                   * add the branch path to our array\n                   */\n                  branchPathsIn.push(branchPath);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return branchPathsIn;\n  }\n\n  /**\n   * Get the component by node id and component id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns the component or null if the nodeId or componentId are null or does not exist in the project.\n   */\n  getComponentByNodeIdAndComponentId(nodeId, componentId) {\n    if (nodeId != null && componentId != null) {\n      const components = this.getComponentsByNodeId(nodeId);\n      for (let tempComponent of components) {\n        if (tempComponent != null) {\n          const tempComponentId = tempComponent.id;\n          if (componentId === tempComponentId) {\n            return tempComponent;\n          }\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Returns the position of the component in the node by node id and\n   * component id, 0-indexed.\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns the component's position or -1 if nodeId or componentId are null\n   * or doesn't exist in the project.\n   */\n  getComponentPositionByNodeIdAndComponentId(nodeId, componentId) {\n    if (nodeId != null && componentId != null) {\n      const components = this.getComponentsByNodeId(nodeId);\n      for (let c = 0; c < components.length; c++) {\n        const tempComponent = components[c];\n        if (tempComponent != null) {\n          const tempComponentId = tempComponent.id;\n          if (componentId === tempComponentId) {\n            return c;\n          }\n        }\n      }\n    }\n    return -1;\n  };\n\n  /**\n   * Get the components in a node\n   * @param nodeId the node id\n   * @returns an array of components or empty array if nodeId is null or\n   * doesn't exist in the project.\n   * if the node exists but doesn't have any components, returns an empty array.\n   */\n  getComponentsByNodeId(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        if (node.components != null) {\n          return node.components;\n        }\n      }\n    }\n    return [];\n  };\n\n\n  // TODO: how is this different from straight-up calling getNodeById?\n  getNodeContentByNodeId(nodeId) {\n    let nodeContent = null;\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        nodeContent = node;\n      }\n    }\n    return nodeContent;\n  };\n\n  /**\n   * Insert the node after the given node id in the group's\n   * array of children ids\n   * @param nodeIdToInsert the node id we want to insert\n   * @param nodeIdToInsertAfter the node id we want to insert after\n   */\n  insertNodeAfterInGroups(nodeIdToInsert, nodeIdToInsertAfter) {\n    const groupNodes = this.getGroupNodes();\n    if (groupNodes != null) {\n      for (let group of groupNodes) {\n        if (group != null) {\n          this.insertNodeAfterInGroup(group, nodeIdToInsert, nodeIdToInsertAfter);\n        }\n      }\n    }\n    const inactiveGroupNodes = this.getInactiveGroupNodes();\n    if (inactiveGroupNodes != null) {\n      for (let inactiveGroup of inactiveGroupNodes) {\n        if (inactiveGroup != null) {\n          this.insertNodeAfterInGroup(inactiveGroup, nodeIdToInsert, nodeIdToInsertAfter);\n        }\n      }\n    }\n  }\n\n  /**\n   * Insert a node id in a group after another specific node id.\n   * @param group A group object.\n   * @param nodeIdToInsert The node id to insert.\n   * @param nodeIdToInsertAfter The node id to insert after.\n   * @returns {boolean} Whether we inserted the node id.\n   */\n  insertNodeAfterInGroup(group, nodeIdToInsert, nodeIdToInsertAfter) {\n    const ids = group.ids;\n    if (ids != null) {\n      for (let i = 0; i < ids.length; i++) {\n        const id = ids[i];\n        if (nodeIdToInsertAfter === id) {\n          ids.splice(i + 1, 0, nodeIdToInsert);\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Update the transitions to handle inserting a node after another node\n   * @param node the node to insert\n   * @param nodeId the node id to insert after\n   */\n  insertNodeAfterInTransitions(node, nodeId) {\n    const previousNode = this.getNodeById(nodeId);\n\n    if (previousNode != null) {\n      if (previousNode.transitionLogic == null) {\n        previousNode.transitionLogic = {};\n        previousNode.transitionLogic.transitions = [];\n      }\n\n      if (node.transitionLogic == null) {\n        node.transitionLogic = {};\n      }\n\n      if (node.transitionLogic.transitions == null) {\n        node.transitionLogic.transitions = [];\n      }\n\n      if (this.isGroupNode(node.id)) {\n        /*\n         * the node we are inserting is a group so we will update\n         * the transitions of its children so that they transition\n         * to the correct node\n         */\n        this.updateChildrenTransitionsForMovingGroup(node, nodeId);\n      }\n\n      const previousNodeTransitionLogic = previousNode.transitionLogic;\n\n      if (previousNodeTransitionLogic != null) {\n        const transitions = previousNodeTransitionLogic.transitions;\n\n        if (transitions != null) {\n          const transitionsJSONString = angular.toJson(transitions);\n          const transitionsCopy = angular.fromJson(transitionsJSONString);\n\n          // set the transitions from the before node into the inserted node\n          node.transitionLogic.transitions = transitionsCopy;\n        }\n      }\n\n      if (node.transitionLogic.transitions.length == 0) {\n        /*\n         * The node does not have any transitions so we will look for\n         * a transition on the parent group. If the parent has a\n         * transition we will use it for the node.\n         */\n\n        const parentGroupId = this.getParentGroupId(nodeId);\n\n        if (parentGroupId != null &&\n            parentGroupId != '' &&\n            parentGroupId != 'group0') {\n          const parentTransitions = this.getTransitionsByFromNodeId(parentGroupId);\n\n          if (parentTransitions != null) {\n            for (let parentTransition of parentTransitions) {\n              const newTransition = {};\n              if (parentTransition != null) {\n                const toNodeId = parentTransition.to;\n                if (this.isGroupNode(toNodeId)) {\n                  const startId = this.getGroupStartId(toNodeId);\n                  if (startId == null || startId == '') {\n                    // there is no start id so we will just use the group id\n                    newTransition.to = toNodeId;\n                  } else {\n                    // there is a start id so we will use it as the to node\n                    newTransition.to = startId;\n                  }\n                } else {\n                  newTransition.to = toNodeId;\n                }\n              }\n              node.transitionLogic.transitions.push(newTransition);\n            }\n          }\n        }\n      }\n\n      const newNodeId = node.id;\n\n      // TODO handle branching case\n\n      previousNode.transitionLogic.transitions = [];\n\n      const transitionObject = {};\n      transitionObject.to = newNodeId;\n      previousNode.transitionLogic.transitions.push(transitionObject);\n      this.removeBranchPathTakenNodeConstraints(node.id);\n      const branchPathTakenConstraints = this.getBranchPathTakenConstraintsByNodeId(nodeId);\n\n      /*\n       * if the previous node was in a branch path, we will also put the\n       * inserted node into the branch path\n       */\n      if (branchPathTakenConstraints != null &&\n          branchPathTakenConstraints.length > 0) {\n        if (node.constraints == null) {\n          node.constraints = [];\n        }\n\n        for (let branchPathTakenConstraint of branchPathTakenConstraints) {\n          if (branchPathTakenConstraint != null) {\n            // create a new constraint with the same branch path taken parameters\n            const newConstraint = {};\n            newConstraint.id = this.getNextAvailableConstraintIdForNodeId(node.id);\n            newConstraint.action = branchPathTakenConstraint.action;\n            newConstraint.targetId = node.id;\n            newConstraint.removalCriteria = this.UtilService.makeCopyOfJSONObject(branchPathTakenConstraint.removalCriteria);\n            node.constraints.push(newConstraint);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Insert a node into a group\n   * @param nodeIdToInsert the node id to insert\n   * @param nodeIdToInsertInside the node id of the group we will insert into\n   */\n  insertNodeInsideInGroups(nodeIdToInsert, nodeIdToInsertInside) {\n    const group = this.getNodeById(nodeIdToInsertInside);\n    if (group != null) {\n      const ids = group.ids;\n      if (ids != null) {\n        ids.splice(0, 0, nodeIdToInsert);\n        group.startId = nodeIdToInsert;\n      }\n    }\n  }\n\n  /**\n   * Update the transitions to handle inserting a node into a group\n   * @param nodeIdToInsert node id that we will insert\n   * @param nodeIdToInsertInside the node id of the group we are inserting into\n   */\n  insertNodeInsideInTransitions(nodeIdToInsert, nodeIdToInsertInside) {\n    const nodeToInsert = this.getNodeById(nodeIdToInsert);\n\n    if (nodeToInsert != null &&\n        nodeToInsert.transitionLogic != null &&\n        nodeToInsert.transitionLogic.transitions != null) {\n      nodeToInsert.transitionLogic.transitions = [];\n\n      /*\n       * remove the branch path taken constraints from the node we are\n       * inserting\n       */\n      this.removeBranchPathTakenNodeConstraints(nodeIdToInsert);\n    }\n\n    const group = this.getNodeById(nodeIdToInsertInside);\n    if (this.isGroupNode(nodeIdToInsert)) {\n      /*\n       * the node we are inserting is a group so we will update\n       * the transitions of its children so that they transition\n       * to the correct node\n       */\n      this.updateChildrenTransitionsForMovingGroup(nodeToInsert, null);\n    }\n\n    /*\n     * since we are inserting a node into a group, the node will become\n     * the first node in the group. this means we need to update any nodes\n     * that point to the old start id and make them point to the node\n     * we are inserting.\n     */\n    if (nodeToInsert != null && group != null) {\n      const startId = group.startId;\n      const previousNodes = this.getNodesByToNodeId(startId);\n\n      if (previousNodes == null || previousNodes.length == 0) {\n        const previousGroups = this.getGroupNodesByToNodeId(nodeIdToInsertInside);\n        for (let previousGroup of previousGroups) {\n          if (previousGroup != null) {\n            // get the nodes that do not have a transition in the previous group\n            const lastNodesInGroup = this.getLastNodesInGroup(previousGroup.id);\n\n            for (let node of lastNodesInGroup) {\n              // add a transition from the node to the node we are inserting\n              this.addToTransition(node, nodeIdToInsert);\n            }\n          }\n        }\n      } else {\n        for (let previousNode of previousNodes) {\n          if (previousNode != null && previousNode.id != 'group0') {\n            // change the transition to point to the node we are inserting\n            this.updateToTransition(previousNode, startId, nodeIdToInsert);\n          }\n        }\n      }\n\n      /*\n       * update all the transitions that point to the group and change\n       * them to point to the new start id\n       */\n      const nodesThatTransitionToGroup = this.getNodesByToNodeId(nodeIdToInsertInside);\n\n      if (nodesThatTransitionToGroup != null) {\n        for (let nodeThatTransitionsToGroup of nodesThatTransitionToGroup) {\n          if (!this.isGroupNode(nodeThatTransitionsToGroup.id)) {\n            this.updateToTransition(nodeThatTransitionsToGroup, nodeIdToInsertInside, nodeIdToInsert);\n          }\n        }\n      }\n\n      /*\n       * create a transition from the node we are inserting to the node that\n       * was previously the start node\n       */\n      if (startId != null && startId != '') {\n        const startNode = this.getNodeById(startId);\n\n        if (startNode != null) {\n          // the group has a start node which will become the transition to node\n\n          if (nodeToInsert.transitionLogic == null) {\n            nodeToInsert.transitionLogic = {};\n          }\n\n          if (nodeToInsert.transitionLogic.transitions == null) {\n            nodeToInsert.transitionLogic.transitions = [];\n          }\n\n          /*\n           * make the inserted node transition to the previous start node\n           */\n          const transitionObject = {};\n          transitionObject.to = startId;\n          nodeToInsert.transitionLogic.transitions.push(transitionObject);\n        }\n      }\n\n      // check if the node we inserted has any transitions now\n      const transitions = this.getTransitionsByFromNodeId(nodeIdToInsert);\n\n      if (transitions == null || transitions.length == 0) {\n        /*\n         * the node doesn't have any transitions so we will see if\n         * the parent group transitions to anything and use that\n         * transition\n         */\n\n        const parentTransitions = this.getTransitionsByFromNodeId(nodeIdToInsertInside);\n\n        if (parentTransitions != null) {\n          for (let parentTransition of parentTransitions) {\n            if (parentTransition != null) {\n              const toNodeId = parentTransition.to;\n              if (this.isGroupNode(toNodeId)) {\n                const nextGroup = this.getNodeById(toNodeId);\n\n                if (nextGroup != null) {\n                  const startId = nextGroup.startId;\n\n                  if (startId == null || startId == '') {\n                    // there is no start id so we will just transition to the group\n                    this.addToTransition(nodeToInsert, toNodeId);\n                  } else {\n                    // there is a start id so we will transition to that\n                    this.addToTransition(nodeToInsert, startId);\n                  }\n                }\n              } else {\n                // the to node is not a group\n\n                /*\n                 * we will add a transition from the node we are inserting to\n                 * to that node\n                 */\n                this.addToTransition(nodeToInsert, toNodeId);\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a transition to a node\n   * @param node the node we are adding a transition to\n   * @param toNodeId the node id we going to transition to\n   * @param criteria (optional) a criteria object specifying\n   * what needs to be satisfied in order to use this transition\n   */\n  addToTransition(node, toNodeId, criteria) {\n    if (node != null) {\n      if (node.transitionLogic == null) {\n        node.transitionLogic = {};\n      }\n      if (node.transitionLogic.transitions == null) {\n        node.transitionLogic.transitions = [];\n      }\n      const transition = {};\n      transition.to = toNodeId;\n      if (criteria != null) {\n        transition.criteria = criteria;\n      }\n      node.transitionLogic.transitions.push(transition);\n    }\n  }\n\n  /**\n   * Update the to value of aa transition\n   * @param node the node to update\n   * @param oldToNodeId the previous to node id\n   * @param newToNodeId the new to node id\n   */\n  updateToTransition(node, oldToNodeId, newToNodeId) {\n    if (node != null) {\n      if (node.transitionLogic == null) {\n        node.transitionLogic = {};\n      }\n\n      if (node.transitionLogic.transitions == null) {\n        node.transitionLogic.transitions = [];\n      }\n\n      const transitions = node.transitionLogic.transitions;\n      for (let transition of transitions) {\n        if (transition != null) {\n          const toNodeId = transition.to;\n          if (oldToNodeId === toNodeId) {\n            transition.to = newToNodeId;\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the nodes in a group that do not have transitions\n   * @param groupId the group id\n   * @returns the nodes in the group that do not have transitions\n   */\n  getLastNodesInGroup(groupId) {\n    const lastNodes = [];\n    if (groupId != null) {\n      const group = this.getNodeById(groupId);\n      if (group != null) {\n        const childIds = group.ids;\n        if (childIds != null) {\n          for (let childId of childIds) {\n            if (childId != null) {\n              const child = this.getNodeById(childId);\n              if (child != null) {\n                const transitionLogic = child.transitionLogic;\n                if (transitionLogic != null) {\n                  const transitions = transitionLogic.transitions;\n                  if (transitions == null || transitions.length == 0) {\n                    lastNodes.push(child);\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return lastNodes;\n  }\n\n  /**\n   * Get the next available group id\n   * @returns the next available group id\n   */\n  getNextAvailableGroupId() {\n    const groupIds = this.getGroupIds();\n    let largestGroupIdNumber = null;\n    for (let groupId of groupIds) {\n      // get the number from the group id e.g. the number of 'group2' would be 2\n      let groupIdNumber = groupId.replace('group', '');\n\n      // make sure the number is an actual number\n      if (!isNaN(groupIdNumber)) {\n        groupIdNumber = parseInt(groupIdNumber);\n\n        // update the largest group id number if necessary\n        if (largestGroupIdNumber == null) {\n          largestGroupIdNumber = groupIdNumber;\n        } else if (groupIdNumber > largestGroupIdNumber) {\n          largestGroupIdNumber = groupIdNumber;\n        }\n      }\n    }\n\n    const nextAvailableGroupId = 'group' + (largestGroupIdNumber + 1);\n    return nextAvailableGroupId;\n  }\n\n  /**\n   * Get all the group ids\n   * @returns an array with all the group ids\n   */\n  getGroupIds() {\n    const groupIds = [];\n\n    const groupNodes = this.groupNodes;\n    for (let group of groupNodes) {\n      if (group != null) {\n        const groupId = group.id;\n        if (groupId != null) {\n          groupIds.push(groupId);\n        }\n      }\n    }\n\n    const inactiveGroupNodes = this.getInactiveGroupNodes();\n    for (let inactiveGroup of inactiveGroupNodes) {\n      if (inactiveGroup != null) {\n        const inactiveGroupId = inactiveGroup.id;\n        if (inactiveGroupId != null) {\n          groupIds.push(inactiveGroupId);\n        }\n      }\n    }\n    return groupIds;\n  }\n\n  /**\n   * Get the next available node id\n   * @param nodeIdsToSkip (optional) An array of additional node ids to not\n   * use. This parameter is used in cases where we are creating multiple new\n   * nodes at once.\n   * Example\n   * We ask for two new node ids by calling getNextAvailableNodeId() twice.\n   * The first time it returns \"node10\".\n   * If we ask the second time without actually creating and adding node10,\n   * it will return \"node10\" again. If we provide \"node10\" in the\n   * nodeIdsToSkip, then getNextAvailableNodeId() will properly return to us\n   * \"node11\".\n   * @returns the next available node id\n   */\n  getNextAvailableNodeId(nodeIdsToSkip) {\n    const nodeIds = this.getNodeIds();\n    let largestNodeIdNumber = null;\n\n    for (let nodeId of nodeIds) {\n      // get the number from the node id e.g. the number of 'node2' would be 2\n      let nodeIdNumber = nodeId.replace('node', '');\n\n      // make sure the number is an actual number\n      if (!isNaN(nodeIdNumber)) {\n        nodeIdNumber = parseInt(nodeIdNumber);\n\n        // update the largest node id number if necessary\n        if (largestNodeIdNumber == null) {\n          largestNodeIdNumber = nodeIdNumber;\n        } else if (nodeIdNumber > largestNodeIdNumber) {\n          largestNodeIdNumber = nodeIdNumber;\n        }\n      }\n    }\n\n    const inactiveNodeIds = this.getInactiveNodeIds();\n    for (let inactiveNodeId of inactiveNodeIds) {\n      // get the number from the node id e.g. the number of 'node2' would be 2\n      let nodeIdNumber = inactiveNodeId.replace('node', '');\n\n      // make sure the number is an actual number\n      if (!isNaN(nodeIdNumber)) {\n        nodeIdNumber = parseInt(nodeIdNumber);\n\n        // update the largest node id number if necessary\n        if (largestNodeIdNumber == null) {\n          largestNodeIdNumber = nodeIdNumber;\n        } else if (nodeIdNumber > largestNodeIdNumber) {\n          largestNodeIdNumber = nodeIdNumber;\n        }\n      }\n    }\n\n    if (nodeIdsToSkip != null) {\n      // there are node ids to skip\n\n      for (let nodeIdToSkip of nodeIdsToSkip) {\n        // get the number from the node id e.g. the number of 'node2' would be 2\n        let nodeIdNumber = nodeIdToSkip.replace('node', '');\n\n        // make sure the number is an actual number\n        if (!isNaN(nodeIdNumber)) {\n          nodeIdNumber = parseInt(nodeIdNumber);\n\n          // update the largest node id number if necessary\n          if (largestNodeIdNumber == null) {\n            largestNodeIdNumber = nodeIdNumber;\n          } else if (nodeIdNumber > largestNodeIdNumber) {\n            largestNodeIdNumber = nodeIdNumber;\n          }\n        }\n      }\n    }\n\n    const nextAvailableNodeId = 'node' + (largestNodeIdNumber + 1);\n    return nextAvailableNodeId;\n  }\n\n  /**\n   * Get all the node ids from steps (not groups)\n   * @returns an array with all the node ids\n   */\n  getNodeIds() {\n    const nodeIds = [];\n    for (let node of this.applicationNodes) {\n      if (node != null) {\n        const nodeId = node.id;\n        if (nodeId != null) {\n          nodeIds.push(nodeId);\n        }\n      }\n    }\n    return nodeIds;\n  }\n\n  /**\n   * Get all the node ids from inactive steps\n   * @returns an array with all the inactive node ids\n   */\n  getInactiveNodeIds() {\n    const nodeIds = [];\n    const inactiveNodes = this.project.inactiveNodes;\n    if (inactiveNodes != null) {\n      for (let inactiveNode of inactiveNodes) {\n        if (inactiveNode != null) {\n          const nodeId = inactiveNode.id;\n          if (nodeId != null) {\n            nodeIds.push(nodeId);\n          }\n        }\n      }\n    }\n    return nodeIds;\n  }\n\n  /**\n   * Move nodes inside a group node\n   * @param nodeIds the node ids to move\n   * @param nodeId the node id of the group we are moving the nodes inside\n   */\n  moveNodesInside(nodeIds, nodeId) {\n    const movedNodes = [];\n\n    for (let n = 0; n < nodeIds.length; n++) {\n      const tempNodeId = nodeIds[n];\n      const tempNode = this.getNodeById(tempNodeId);\n      movedNodes.push(tempNode);\n\n      const movingNodeIsActive = this.isActive(tempNodeId);\n      const stationaryNodeIsActive = this.isActive(nodeId);\n\n      if (movingNodeIsActive && stationaryNodeIsActive) {\n        // we are moving from active to active\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n\n        if (n == 0) {\n          /*\n           * this is the first node we are moving so we will insert it\n           * into the beginning of the group\n           */\n          this.insertNodeInsideInTransitions(tempNodeId, nodeId);\n          this.insertNodeInsideInGroups(tempNodeId, nodeId);\n        } else {\n          /*\n           * this is not the first node we are moving so we will insert\n           * it after the node we previously inserted\n           */\n          this.insertNodeAfterInTransitions(tempNode, nodeId);\n          this.insertNodeAfterInGroups(tempNodeId, nodeId);\n        }\n      } else if (movingNodeIsActive && !stationaryNodeIsActive) {\n        // we are moving from active to inactive\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n\n        if (n == 0) {\n          /*\n           * this is the first node we are moving so we will insert it\n           * into the beginning of the group\n           */\n          this.moveFromActiveToInactiveInsertInside(tempNode, nodeId);\n        } else {\n          /*\n           * this is not the first node we are moving so we will insert\n           * it after the node we previously inserted\n           */\n          this.moveToInactive(tempNode, nodeId);\n        }\n      } else if (!movingNodeIsActive && stationaryNodeIsActive) {\n        // we are moving from inactive to active\n\n        this.moveToActive(tempNode);\n\n        if (n == 0) {\n          /*\n           * this is the first node we are moving so we will insert it\n           * into the beginning of the group\n           */\n          this.insertNodeInsideInTransitions(tempNodeId, nodeId);\n          this.insertNodeInsideInGroups(tempNodeId, nodeId);\n        } else {\n          /*\n           * this is not the first node we are moving so we will insert\n           * it after the node we previously inserted\n           */\n          this.insertNodeAfterInTransitions(tempNode, nodeId);\n          this.insertNodeAfterInGroups(tempNodeId, nodeId);\n        }\n      } else if (!movingNodeIsActive && !stationaryNodeIsActive) {\n        // we are moving from inactive to inactive\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n\n        if (n == 0) {\n          /*\n           * this is the first node we are moving so we will insert it\n           * into the beginning of the group\n           */\n          this.moveFromInactiveToInactiveInsertInside(tempNode, nodeId);\n        } else {\n          /*\n           * this is not the first node we are moving so we will insert\n           * it after the node we previously inserted\n           */\n          this.moveInactiveNode(tempNode, nodeId);\n        }\n      }\n\n      /*\n       * remember the node id so we can put the next node (if any)\n       * after this one\n       */\n      nodeId = tempNode.id;\n    }\n    return movedNodes;\n  }\n\n  /**\n   * Move nodes after a certain node id\n   * @param nodeIds the node ids to move\n   * @param nodeId the node id we will put the moved nodes after\n   */\n  moveNodesAfter(nodeIds, nodeId) {\n    const movedNodes = [];\n\n    for (let tempNodeId of nodeIds) {\n      const node = this.getNodeById(tempNodeId);\n      movedNodes.push(node);\n\n      const movingNodeIsActive = this.isActive(tempNodeId);\n      const stationaryNodeIsActive = this.isActive(nodeId);\n\n      if (movingNodeIsActive && stationaryNodeIsActive) {\n        // we are moving from active to active\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n        this.insertNodeAfterInGroups(tempNodeId, nodeId);\n        this.insertNodeAfterInTransitions(node, nodeId);\n      } else if (movingNodeIsActive && !stationaryNodeIsActive) {\n        // we are moving from active to inactive\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n        this.moveToInactive(node, nodeId);\n      } else if (!movingNodeIsActive && stationaryNodeIsActive) {\n        // we are moving from inactive to active\n\n        this.moveToActive(node);\n        this.insertNodeAfterInGroups(tempNodeId, nodeId);\n        this.insertNodeAfterInTransitions(node, nodeId);\n      } else if (!movingNodeIsActive && !stationaryNodeIsActive) {\n        // we are moving from inactive to inactive\n\n        this.removeNodeIdFromTransitions(tempNodeId);\n        this.removeNodeIdFromGroups(tempNodeId);\n        this.moveInactiveNode(node, nodeId);\n      }\n\n      // remember the node id so we can put the next node (if any) after this one\n      nodeId = node.id;\n    }\n    return movedNodes;\n  }\n\n  /**\n   * Copy the node with the specified nodeId\n   * @param nodeId the node id to copy\n   * @return copied node\n   */\n  copyNode(nodeId) {\n    const node = this.getNodeById(nodeId);\n    const nodeCopy = this.UtilService.makeCopyOfJSONObject(node);\n    nodeCopy.id = this.getNextAvailableNodeId();\n    nodeCopy.transitionLogic = {};  // clear transition logic\n    nodeCopy.constraints = [];  // clear constraints\n\n    const newComponentIds = [];\n    for (let component of nodeCopy.components) {\n      const newComponentId = this.getUnusedComponentId(newComponentIds);\n      newComponentIds.push(newComponentId);\n      component.id = newComponentId;\n    }\n    return nodeCopy;\n  }\n\n  /**\n   * Delete a node\n   * @param nodeId the node id\n   */\n  deleteNode(nodeId) {\n    /*\n     * flag for whether we are deleting the project start node id.\n     * if we are deleting the project start node id, we will need\n     * to change it to the next logical node id that will be used\n     * as the project start.\n     */\n    let removingProjectStartNodeId = false;\n\n    if (this.isGroupNode(nodeId)) {\n      // the node is a group node so we will also remove all of its children\n      const group = this.getNodeById(nodeId);\n\n      // TODO check if the child is in another group, if so do not remove\n\n      if (group != null) {\n        const ids = group.ids;\n        for (let i = 0; i < ids.length; i++) {\n          const id = ids[i];\n          this.removeNodeIdFromTransitions(id);\n          this.removeNodeIdFromGroups(id);\n          this.removeNodeIdFromNodes(id);\n\n          if (this.project.startNodeId == id) {\n            removingProjectStartNodeId = true;\n          }\n\n          /*\n           * move the counter back because we have removed a child\n           * from the parent group's array of child ids so all of\n           * the child ids were shifted back one and the next child\n           * we want will be at i--\n           */\n          i--;\n        }\n      }\n    }\n\n    const parentGroup = this.getParentGroup(nodeId);\n\n    // check if we need to update the start id of the parent group\n    if (parentGroup != null) {\n\n      /*\n       * the node is the start node of the parent group so we need\n       * to update the start id of the parent group to point to\n       * the next node\n       */\n      if (nodeId === parentGroup.startId) {\n        let hasSetNewStartId = false;\n\n        const node = this.getNodeById(nodeId);\n        if (node != null) {\n          const transitionLogic = node.transitionLogic;\n          if (transitionLogic != null) {\n            const transitions = transitionLogic.transitions;\n            if (transitions != null && transitions.length > 0) {\n              const transition = transitions[0];\n              if (transition != null) {\n                const toNodeId = transition.to;\n                if (toNodeId != null) {\n                  if (this.isNodeInGroup(toNodeId, parentGroup.id)) {\n                    parentGroup.startId = toNodeId;\n                    hasSetNewStartId = true;\n                  }\n                }\n              }\n            }\n          }\n        }\n\n        if (!hasSetNewStartId) {\n          parentGroup.startId = '';\n        }\n      }\n    }\n\n    if (nodeId === this.getStartNodeId()) {\n      removingProjectStartNodeId = true;\n    }\n\n    if (removingProjectStartNodeId) {\n      /*\n       * we are removing the project start node id so we need to update\n       * the startNodeId to something else\n       */\n\n      if (this.isGroupNode(nodeId)) {\n        /*\n         * we are removing a group so we need to set the startNodeId to\n         * the first node of the next group or if the next group doesn't\n         * have any nodes, we will just use the next group\n         */\n\n        // get the transitions of the group we are removing\n        const transitions = this.getTransitionsByFromNodeId(nodeId);\n\n        if (transitions == null || transitions.length == 0) {\n          /*\n           * the group doesn't have any transitions so we will set\n           * the startNodeId to 'group0'\n           */\n          this.setStartNodeId('group0');\n        } else {\n          // the group has transitions\n\n          let nextNodeId = null;\n\n          if (transitions[0] != null && transitions[0].to != null) {\n            nextNodeId = transitions[0].to;\n          }\n\n          if (nextNodeId != null) {\n            if (this.isGroupNode(nextNodeId)) {\n              const nextGroupNode = this.getNodeById(nextNodeId);\n\n              if (nextGroupNode != null) {\n                const nextGroupStartId = nextGroupNode.startId;\n\n                if (nextGroupStartId == null) {\n                  /*\n                   * the next group does not have a start id so we\n                   * will just use the next group id as the project\n                   * start node id\n                   */\n                  this.setStartNodeId(nextNodeId);\n                } else {\n                  /*\n                   * the next group has a start id so we will use\n                   * it as the project start node id\n                   */\n                  this.setStartNodeId(nextGroupStartId);\n                }\n              }\n            } else {\n              /*\n               * the transition is to a step so we will use it as the\n               * project start node id\n               */\n              this.setStartNodeId(nextNodeId);\n            }\n          }\n        }\n      } else {\n        /*\n         * we are removing a step node so we will set the startNodeId to\n         * the next node in the transitions, or if there are no\n         * transitions, we will use the parent group\n         */\n\n        // get the transitions from the step we are removing\n        const transitions = this.getTransitionsByFromNodeId(nodeId);\n        const parentGroupId = this.getParentGroupId(nodeId);\n        if (transitions == null || transitions.length == 0) {\n          this.setStartNodeId(parentGroupId);\n        } else {\n          if (transitions[0] != null && transitions[0].to != null) {\n            let toNodeId = transitions[0].to;\n            if (this.isNodeInGroup(toNodeId, parentGroupId)) {\n              this.setStartNodeId(toNodeId);\n            } else {\n              this.setStartNodeId(this.getParentGroupId(nodeId));\n            }\n          }\n        }\n      }\n    }\n\n    this.removeNodeIdFromTransitions(nodeId);\n    this.removeNodeIdFromGroups(nodeId);\n    this.removeNodeIdFromNodes(nodeId);\n\n    if (parentGroup != null) {\n      this.recalculatePositionsInGroup(parentGroup.id);\n    }\n  }\n\n  /**\n   * Update the transitions to handle removing a node\n   * @param nodeId the node id to remove\n   */\n  removeNodeIdFromTransitions(nodeId) {\n    const nodeToRemove = this.getNodeById(nodeId);\n    const nodesByToNodeId = this.getNodesByToNodeId(nodeId);\n\n    const nodeToRemoveTransitionLogic = nodeToRemove.transitionLogic;\n    let nodeToRemoveTransitions = [];\n\n    if (nodeToRemoveTransitionLogic != null && nodeToRemoveTransitionLogic.transitions != null) {\n      nodeToRemoveTransitions = nodeToRemoveTransitionLogic.transitions;\n    }\n\n    const parentIdOfNodeToRemove = this.getParentGroupId(nodeId);\n    const parentGroup = this.getNodeById(parentIdOfNodeToRemove);\n\n    // update the start id if we are removing the start node of a group\n    if (parentGroup != null) {\n      const parentGroupStartId = parentGroup.startId;\n      if (parentGroupStartId != null) {\n        if (parentGroupStartId === nodeId) {\n          // the node we are removing is the start node\n\n          if (nodeToRemoveTransitions != null && nodeToRemoveTransitions.length > 0) {\n            for (let nodeToRemoveTransition of nodeToRemoveTransitions) {\n              if (nodeToRemoveTransition != null) {\n                const toNodeId = nodeToRemoveTransition.to;\n                if (toNodeId != null) {\n                  /*\n                   * we need to check that the to node id is in the\n                   * same group. some transitions point to a node id\n                   * in the next group which we would not want to use\n                   * for the start id.\n                   */\n                  if (this.getParentGroupId(toNodeId) == parentIdOfNodeToRemove) {\n                    // set the new start id\n                    parentGroup.startId = toNodeId;\n                  }\n                }\n              }\n            }\n          } else {\n            // there are no transitions so we will have an empty start id\n            parentGroup.startId = '';\n          }\n        }\n      }\n    }\n\n    for (let n = 0; n < nodesByToNodeId.length; n++) {\n      const node = nodesByToNodeId[n];\n\n      if (node != null) {\n        const parentIdOfFromNode = this.getParentGroupId(node.id);\n        const transitionLogic = node.transitionLogic;\n\n        if (transitionLogic != null) {\n          const transitions = transitionLogic.transitions;\n          for (let t = 0; t < transitions.length; t++) {\n            const transition = transitions[t];\n            if (nodeId === transition.to) {\n              // we have found the transition to the node we are removing\n\n              // copy the transitions from the node we are removing\n              let transitionsCopy = angular.toJson(nodeToRemoveTransitions);\n              transitionsCopy = angular.fromJson(transitionsCopy);\n\n              /*\n               * if the parent from group is different than the parent removing group\n               * remove transitions that are to a node in a different group than\n               * the parent removing group\n               */\n\n              if (parentIdOfFromNode != parentIdOfNodeToRemove) {\n                for (let tc = 0; tc < transitionsCopy.length; tc++) {\n                  const tempTransition = transitionsCopy[tc];\n                  if (tempTransition != null) {\n                    const tempToNodeId = tempTransition.to;\n                    if (tempToNodeId != null) {\n                      const parentIdOfToNode = this.getParentGroupId(tempToNodeId);\n                      if (parentIdOfNodeToRemove != parentIdOfToNode) {\n                        // remove the transition\n                        transitionsCopy.splice(tc, 1);\n                        tc--;\n                      }\n                    }\n                  }\n                }\n              }\n\n              if (this.isFirstNodeInBranchPath(nodeId)) {\n                /*\n                 * Get the node ids that have a branchPathTaken\n                 * constraint from the before node and to the node\n                 * we are removing. If there are any, we need to\n                 * update the branchPathTaken constraint with the\n                 * next nodeId that comes after the node we are\n                 * removing.\n                 */\n                const nodeIdsInBranch = this.getNodeIdsInBranch(node.id, nodeId);\n\n                if (nodeIdsInBranch != null) {\n                  for (let nodeIdInBranch of nodeIdsInBranch) {\n                    const nodeInBranch = this.getNodeById(nodeIdInBranch);\n                    for (let transitionCopy of transitionsCopy) {\n                      if (transitionCopy != null) {\n                        const currentFromNodeId = node.id;\n                        const currentToNodeId = nodeId;\n                        const newFromNodeId = node.id;\n                        const newToNodeId = transitionCopy.to;\n\n                        /*\n                         * change the branch path taken constraint by changing\n                         * the toNodeId\n                         */\n                        this.updateBranchPathTakenConstraint(nodeInBranch, currentFromNodeId, currentToNodeId, newFromNodeId, newToNodeId);\n                      }\n                    }\n                  }\n                }\n              } else if (this.isBranchPoint(nodeId)) {\n                /*\n                 * get all the branches that have the node we\n                 * are removing as the start point\n                 */\n                const branches = this.getBranchesByBranchStartPointNodeId(nodeId);\n\n                for (let branch of branches) {\n                  if (branch != null) {\n                    /*\n                     * get the branch paths. these paths do not\n                     * contain the start point or merge point.\n                     */\n                    const branchPaths = branch.branchPaths;\n\n                    if (branchPaths != null) {\n                      for (let branchPath of branchPaths) {\n                        if (branchPath != null) {\n                          const currentFromNodeId = nodeId;\n                          const currentToNodeId = branchPath[0];\n                          const newFromNodeId = node.id;\n                          const newToNodeId = branchPath[0];\n                          for (let branchPathNodeId of branchPath) {\n                            const branchPathNode = this.getNodeById(branchPathNodeId);\n                            this.updateBranchPathTakenConstraint(branchPathNode, currentFromNodeId, currentToNodeId, newFromNodeId, newToNodeId);\n                          }\n                        }\n                      }\n                    }\n                  }\n                }\n              }\n\n              // remove the transition to the node we are removing\n              transitions.splice(t, 1);\n\n              if (transitionsCopy != null) {\n                let insertIndex = t;\n\n                /*\n                 * loop through all the transitions from the node we are removing\n                 * and insert them into the transitions of the from node\n                 * e.g.\n                 * the node that comes before the node we are removing has these transitions\n                 * \"transitions\": [\n                 *     {\n                 *         \"to\": \"node4\"\n                 *     },\n                 *     {\n                 *         \"to\": \"node6\"\n                 *     }\n                 * ]\n                 *\n                 * we are removing node4. node4 has a transition to node5.\n                 *\n                 * the node that comes before the node we are removing now has these transitions\n                 * \"transitions\": [\n                 *     {\n                 *         \"to\": \"node5\"\n                 *     },\n                 *     {\n                 *         \"to\": \"node6\"\n                 *     }\n                 * ]\n                 */\n                for (let transitionCopy of transitionsCopy) {\n                  // insert a transition from the node we are removing\n                  transitions.splice(insertIndex, 0, transitionCopy);\n                  insertIndex++;\n                }\n              }\n\n              // check if the node we are moving is a group\n              if (this.isGroupNode(nodeId)) {\n                /*\n                 * we are moving a group so we need to update transitions that\n                 * go into the group\n                 */\n                const groupIdWeAreMoving = nodeId;\n                const groupThatTransitionsToGroupWeAreMoving = node;\n                this.updateChildrenTransitionsIntoGroupWeAreMoving(groupThatTransitionsToGroupWeAreMoving, groupIdWeAreMoving);\n              }\n            }\n          }\n\n          if (this.isBranchPoint(nodeId)) {\n            /*\n             * the node we are deleting is a branch point so we to\n             * copy the transition logic to the node that comes\n             * before it\n             */\n            node.transitionLogic = this.UtilService.makeCopyOfJSONObject(nodeToRemoveTransitionLogic);\n\n            /*\n             * set the transitions for the node that comes before\n             * the one we are removing\n             */\n            node.transitionLogic.transitions = transitions;\n          }\n        }\n      }\n    }\n\n    if (nodeToRemoveTransitionLogic != null) {\n      nodeToRemoveTransitionLogic.transitions = [];\n    }\n\n    if (this.isGroupNode(nodeId)) {\n      /*\n       * this is a group node so we will remove all child transitions that\n       * go out of this group\n       */\n      this.removeTransitionsOutOfGroup(nodeId);\n    }\n  };\n\n  /**\n   * Remove the node id from a group\n   * @param nodeId the node id to remove\n   */\n  removeNodeIdFromGroups(nodeId) {\n    const groups = this.getGroupNodes();\n    for (let group of groups) {\n      this.removeNodeIdFromGroup(group, nodeId);\n    }\n    const inactiveGroups = this.getInactiveGroupNodes();\n    for (let inactiveGroup of inactiveGroups) {\n      this.removeNodeIdFromGroup(inactiveGroup, nodeId);\n    }\n  }\n\n  /**\n   * Remove a node id from a group.\n   * @param group The group to remove from.\n   * @param nodeId The node id to remove.\n   */\n  removeNodeIdFromGroup(group, nodeId) {\n    const startId = group.startId;\n    const ids = group.ids;\n    for (let i = 0; i < ids.length; i++) {\n      const id = ids[i];\n      if (nodeId === id) {\n        ids.splice(i, 1);\n\n        if (nodeId === startId) {\n          /*\n           * the node id is also the start id so we will get the\n           * next node id and set it as the new start id\n           */\n\n          let hasSetNewStartId = false;\n\n          const node = this.getNodeById(id);\n\n          if (node != null) {\n            const transitionLogic = node.transitionLogic;\n            if (transitionLogic != null) {\n              const transitions = transitionLogic.transitions;\n              if (transitions != null && transitions.length > 0) {\n                // get the first transition\n                // TODO handle the case when the node we are removing is a branch point\n                const transition = transitions[0];\n\n                if (transition != null) {\n                  const to = transition.to;\n\n                  if (to != null) {\n                    group.startId = to;\n                    hasSetNewStartId = true;\n                  }\n                }\n              }\n            }\n          }\n\n          if (!hasSetNewStartId) {\n            /*\n             * the node we are removing did not have a transition\n             * so there will be no start id\n             */\n            group.startId = '';\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the array of nodes\n   * @param nodeId the node id to remove\n   */\n  removeNodeIdFromNodes(nodeId) {\n    const nodes = this.project.nodes;\n    for (let n = 0; n < nodes.length; n++) {\n      const node = nodes[n];\n      if (node != null) {\n        if (nodeId === node.id) {\n          nodes.splice(n, 1);\n        }\n      }\n    }\n\n    const inactiveNodes = this.project.inactiveNodes;\n    if (inactiveNodes != null) {\n      for (let i = 0; i < inactiveNodes.length; i++) {\n        const inactiveNode = inactiveNodes[i];\n        if (inactiveNode != null) {\n          if (nodeId === inactiveNode.id) {\n            inactiveNodes.splice(i, 1);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the inactive nodes array\n   * @param nodeId the node to remove from the inactive nodes array\n   */\n  removeNodeIdFromInactiveNodes(nodeId) {\n    const inactiveNodes = this.project.inactiveNodes;\n\n    if (inactiveNodes != null) {\n      for (let i = 0; i < inactiveNodes.length; i++) {\n        const inactiveNode = inactiveNodes[i];\n        if (inactiveNode != null) {\n          const inactiveNodeId = inactiveNode.id;\n          if (nodeId === inactiveNodeId) {\n            /*\n             * we have found the node we are looking for so we will\n             * remove it\n             */\n            inactiveNodes.splice(i, 1);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Create a new component\n   * @param nodeId the node id to create the component in\n   * @param componentType the component type\n   * @param insertAfterComponentId Insert the new compnent after the given\n   * component id. If this argument is null, we will place the new component\n   * in the first position.\n   */\n  createComponent(nodeId, componentType, insertAfterComponentId) {\n    let component = null;\n    if (nodeId != null && componentType != null) {\n      // get the node we will create the component in\n      const node = this.getNodeById(nodeId);\n\n      // get the service for the component type\n      const service = this.$injector.get(componentType + 'Service');\n\n      if (node != null && service != null) {\n        // create the new component\n        component = service.createComponent();\n\n        if (service.componentHasWork()) {\n          /*\n           * the component has student work so we will need to\n           * determine if we need to show the save button on the\n           * component or the step\n           */\n\n          if (node.showSaveButton == true) {\n            /*\n             * the step is showing a save button so we will not show\n             * the save button on this new component\n             */\n          } else {\n            // the step is not showing a save button\n\n            if (this.doesAnyComponentShowSubmitButton(node.id)) {\n              /*\n               * at least one of the other components in the step are\n               * showing a submit button so we will also show the save\n               * button on this new component\n               */\n\n              // turn on the component save button\n              component.showSaveButton = true;\n            } else {\n              /*\n               * none of the other components are showing a submit button\n               * so we will show the save button on the step\n               */\n\n              // turn on the step save button\n              node.showSaveButton = true;\n            }\n          }\n        }\n\n        // add the component to the node\n        this.addComponentToNode(node, component, insertAfterComponentId);\n      }\n    }\n    return component;\n  }\n\n  /**\n   * Does any component in the step generate work\n   * @param nodeId the node id\n   * @return whether any components in the step generates work\n   */\n  doesAnyComponentHaveWork(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            const componentType = component.type;\n            const service = this.$injector.get(componentType + 'Service');\n            if (service != null) {\n              if (service.componentHasWork()) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if any of the components in the node are showing their save button\n   * @param nodeId the node id to check\n   * @return whether any of the components in the node show their save button\n   */\n  doesAnyComponentShowSaveButton(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            if (component.showSaveButton == true) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if any of the components in the node are showing their submit button\n   * @param nodeId the node id to check\n   * @return whether any of the components in the node show their submit button\n   */\n  doesAnyComponentShowSubmitButton(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            if (component.showSubmitButton == true) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Turn on the save button in all the components in the step\n   * @param nodeId the node id\n   */\n  turnOnSaveButtonInComponents(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            const componentType = component.type;\n            if (componentType != null) {\n              const service = this.$injector.get(componentType + 'Service');\n              if (service != null) {\n                if (service.componentUsesSaveButton()) {\n                  component.showSaveButton = true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Turn off the submit button in all the components in the step\n   * @param nodeId the node id\n   */\n  turnOffSaveButtonInComponents(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            const componentType = component.type;\n            if (componentType != null) {\n              const service = this.$injector.get(componentType + 'Service');\n              if (service != null) {\n                if (service.componentUsesSaveButton()) {\n                  component.showSaveButton = false;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Add the component to the node\n   * @param node the node\n   * @param component the component\n   * @param insertAfterComponentId Insert the component after this given\n   * component id. If this argument is null, we will place the new component\n   * in the first position.\n   */\n  addComponentToNode(node, component, insertAfterComponentId) {\n    if (node != null && component != null) {\n      if (insertAfterComponentId == null) {\n        /*\n         * insertAfterComponentId is null so we will place the new\n         * component in the first position\n         */\n        node.components.splice(0, 0, component);\n      } else {\n        // place the new component after the insertAfterComponentId\n\n        // boolean flag for whether we have added the component yet\n        let added = false;\n\n        const components = node.components;\n        for (let c = 0; c < components.length; c++) {\n          const tempComponent = components[c];\n          if (tempComponent != null && tempComponent.id != null &&\n              tempComponent.id == insertAfterComponentId) {\n            /*\n             * we have found the component we want to add the new\n             * one after\n             */\n\n            // add the component\n            components.splice(c + 1, 0, component);\n            added = true;\n            break;\n          }\n        }\n\n        if (!added) {\n          /*\n           * the component has not been added yet so we will just add\n           * it at the end\n           */\n          node.components.push(component);\n        }\n      }\n    }\n  }\n\n  /**\n   * Move the component(s) within the node\n   * @param nodeId we are moving component(s) in this node\n   * @param componentIds the component(s) we are moving\n   * @param insertAfterComponentId Insert the component(s) after this given\n   * component id. If this argument is null, we will place the new\n   * component(s) in the first position.\n   */\n  moveComponent(nodeId, componentIds, insertAfterComponentId) {\n    // get the node for which we are moving components\n    const node = this.getNodeById(nodeId);\n\n    const components = node.components;\n    const componentsToMove = [];\n\n    // remove the component(s)\n    for (let a = components.length - 1; a >= 0; a--) {\n      const tempComponent = components[a];\n      if (tempComponent != null) {\n        if (componentIds.indexOf(tempComponent.id) != -1) {\n          // we have found a component we want to move\n\n          // add the component to our array of components we are moving\n          componentsToMove.splice(0, 0, tempComponent);\n\n          // remove the component from the components array in the node\n          components.splice(a, 1);\n        }\n      }\n    }\n\n    // insert the component(s)\n    if (insertAfterComponentId == null) {\n      // insert the components at the beginning of the components list\n\n      for (let c = 0; c < componentsToMove.length; c++) {\n        // insert a component\n        components.splice(c, 0, componentsToMove[c]);\n      }\n    } else {\n      // insert the component(s) after the given insertAfterComponentId\n\n      for (let b = 0; b < components.length; b++) {\n        const tempComponent = components[b];\n        if (tempComponent != null && tempComponent.id == insertAfterComponentId) {\n          // we have found the component we want to add after\n\n          for (let c = 0; c < componentsToMove.length; c++) {\n            // insert a component\n            components.splice(b + 1 + c, 0, componentsToMove[c]);\n          }\n          break;\n        }\n      }\n    }\n    return componentsToMove;\n  }\n\n  /**\n   * Delete the component\n   * @param nodeId the node id\n   * @param componentId the component id\n   */\n  deleteComponent(nodeId, componentId) {\n    if (nodeId != null && componentId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        const components = node.components;\n        if (components != null) {\n          for (let c = 0; c < components.length; c++) {\n            const component = components[c];\n            if (component.id === componentId) {\n              // we have found the component we want to delete\n\n              // remove the component\n              components.splice(c, 1);\n              break;\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * TODO: Deprecated, should be removed; replaced by getMaxScoreForWorkgroupId in StudentStatusService\n   * Get the max score for the project. If the project contains branches, we\n   * will only calculate the max score for a single path from the first node\n   * to the last node in the project.\n   * @returns the max score for the project or null if none of the components in the project\n   * has max scores.\n   */\n  getMaxScore() {\n    let maxScore = null;\n    const startNodeId = this.getStartNodeId();\n\n    // get all the paths in the project\n    const allPaths = this.getAllPaths([], startNodeId);\n\n    if (allPaths != null && allPaths.length > 0) {\n      const firstPath = allPaths[0];\n      for (let nodeId of firstPath) {\n        const nodeMaxScore = this.getMaxScoreForNode(nodeId);\n        if (nodeMaxScore != null) {\n          if (maxScore == null) {\n            maxScore = nodeMaxScore;\n          } else {\n            maxScore += nodeMaxScore;\n          }\n        }\n      }\n    }\n    return maxScore;\n  }\n\n  /**\n   * Get the max score for the node\n   * @param nodeId the node id\n   * @returns the max score for the node\n   */\n  getMaxScoreForNode(nodeId) {\n    let maxScore = null;\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const components = node.components;\n      if (components != null) {\n        for (let component of components) {\n          if (component != null) {\n            const componentMaxScore = component.maxScore;\n\n            // check if the component has a max score\n            if (componentMaxScore != null) {\n              // make sure the max score is a valid number\n              if (!isNaN(componentMaxScore)) {\n                if (maxScore == null) {\n                  maxScore = componentMaxScore;\n                } else {\n                  // accumulate the max score\n                  maxScore += componentMaxScore;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return maxScore;\n  }\n\n  /**\n   * Get the max score for a component\n   * @param nodeId get the max score from a component in this node\n   * @param componentId get the max score from this component\n   */\n  getMaxScoreForComponent(nodeId, componentId) {\n    const component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null) {\n      return component.maxScore;\n    }\n    return null;\n  }\n\n  /**\n   * Set the max score for a component\n   * @param nodeId set the max score from a component in this node\n   * @param componentId set the max score from this component\n   * @param maxScore set it to this maxScore\n   */\n  setMaxScoreForComponent(nodeId, componentId, maxScore) {\n    if (nodeId != null && componentId != null && maxScore != null && typeof maxScore === 'number') {\n      let component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n      if (component != null) {\n        component.maxScore = maxScore;\n      }\n    }\n  }\n\n  /**\n   * Determine if a node id is a direct child of a group\n   * @param nodeId the node id\n   * @param groupId the group id\n   */\n  isNodeInGroup(nodeId, groupId) {\n    const group = this.getNodeById(groupId);\n    const childIds = group.ids;\n    if (childIds != null) {\n      if (childIds.indexOf(nodeId) != -1) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the first leaf node by traversing all the start ids\n   * until a leaf node id is found\n   */\n  getFirstLeafNodeId() {\n    let firstLeafNodeId = null;\n    const startGroupId = this.project.startGroupId;\n    let node = this.getNodeById(startGroupId);\n    let done = false;\n\n    // loop until we have found a leaf node id or something went wrong\n    while (!done) {\n      if (node == null) {\n        done = true;\n      } else if (this.isGroupNode(node.id)) {\n        // set the first leaf node id to the group id for now\n        firstLeafNodeId = node.id;\n\n        node = this.getNodeById(node.startId);\n      } else if (this.isApplicationNode(node.id)) {\n        // the current node is a leaf\n        firstLeafNodeId = node.id;\n        done = true;\n      } else {\n        done = true;\n      }\n    }\n    return firstLeafNodeId;\n  }\n\n  /**\n   * Replace a node. This is used when we want to revert a node back to a\n   * previous version in the authoring tool.\n   * @param nodeId the node id\n   * @param node the node object\n   */\n  replaceNode(nodeId, node) {\n    if (nodeId != null && node != null) {\n      this.setIdToNode(nodeId, node);\n      this.setIdToElement(nodeId, node);\n      const nodes = this.getNodes();\n      if (nodes != null) {\n        for (let n = 0; n < nodes.length; n++) {\n          const tempNode = nodes[n];\n          if (tempNode != null) {\n            const tempNodeId = tempNode.id;\n            if (nodeId === tempNodeId) {\n              nodes.splice(n, 1, node);\n              break;\n            }\n          }\n        }\n      }\n\n      const applicationNodes = this.applicationNodes;\n      if (applicationNodes != null) {\n        for (let a = 0; a < applicationNodes.length; a++) {\n          const tempApplicationNode = applicationNodes[a];\n          if (tempApplicationNode != null) {\n            const tempApplicationNodeId = tempApplicationNode.id;\n            if (nodeId === tempApplicationNodeId) {\n              applicationNodes.splice(a, 1, node);\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Recalculate the positions of the children in the group.\n   * The positions are the numbers usually seen before the title\n   * e.g. if the step is seen as 1.3: Gather Evidence, then 1.3\n   * is the position\n   * @param groupId recalculate all the children of this group\n   */\n  recalculatePositionsInGroup(groupId) {\n    if (groupId != null) {\n      let childIds = this.getChildNodeIdsById(groupId);\n      for (let childId of childIds) {\n        let pos = this.getPositionById(childId);\n        this.setIdToPosition(childId, pos);\n      }\n    }\n  }\n\n  /**\n   * Get the message that describes how to disable the constraint\n   * @param nodeId the node the student is trying to go to\n   * @param constraint the constraint that is preventing the student\n   * from going to the node\n   * @returns the message to display to the student that describes how\n   * to disable the constraint\n   */\n  getConstraintMessage(nodeId, constraint) {\n    let message = '';\n\n    if (nodeId != null && constraint != null) {\n      // get the node title the student is trying to go to\n      const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n\n      const removalConditional = constraint.removalConditional;\n      const removalCriteria = constraint.removalCriteria;\n\n      if (removalCriteria != null) {\n        let criteriaMessages = '';\n        for (let tempRemovalCriteria of removalCriteria) {\n          if (tempRemovalCriteria != null) {\n            // get the message that describes the criteria that needs to be satisfied\n            const criteriaMessage = this.getCriteriaMessage(tempRemovalCriteria);\n\n            if (criteriaMessage != null && criteriaMessage != '') {\n              // separate criteria messages with a line break\n              if (criteriaMessages != '') {\n                criteriaMessages += '<br/>';\n              }\n              criteriaMessages += criteriaMessage;\n            }\n          }\n        }\n        message += criteriaMessages;\n      }\n    }\n    return message;\n  }\n\n  /**\n   * Get the human readable description of the constraint.\n   * @param constraint The constraint object.\n   * @returns A human readable text string that describes the constraint.\n   * example\n   * 'All steps after this one will not be visitable until the student completes \"3.7 Revise Your Bowls Explanation\"'\n   */\n  getConstraintDescription(constraint) {\n    let message = '';\n    let action = constraint.action;\n    let actionMessage = this.getActionMessage(action);\n    for (let singleRemovalCriteria of constraint.removalCriteria) {\n      if (message != '') {\n        // this constraint has multiple removal criteria\n        if (constraint.removalConditional == 'any') {\n          message += ' or ';\n        } else if (constraint.removalConditional == 'all') {\n          message += ' and ';\n        }\n      }\n      message += this.getCriteriaMessage(singleRemovalCriteria);\n    }\n    message = actionMessage + message;\n    return message;\n  }\n\n  /**\n   * Get the constraint action as human readable text.\n   * @param action A constraint action.\n   * @return A human readable text string that describes the action\n   * example\n   * 'All steps after this one will not be visitable until '\n   */\n  getActionMessage(action) {\n    if (action == 'makeAllNodesAfterThisNotVisitable') {\n      return this.$translate('allStepsAfterThisOneWillNotBeVisitableUntil');\n    } else if (action == 'makeAllNodesAfterThisNotVisible') {\n      return this.$translate('allStepsAfterThisOneWillNotBeVisibleUntil');\n    } else if (action == 'makeAllOtherNodesNotVisitable') {\n      return this.$translate('allOtherStepsWillNotBeVisitableUntil');\n    } else if (action == 'makeAllOtherNodesNotVisible') {\n      return this.$translate('allOtherStepsWillNotBeVisibleUntil');\n    } else if (action == 'makeThisNodeNotVisitable') {\n      return this.$translate('thisStepWillNotBeVisitableUntil');\n    } else if (action == 'makeThisNodeNotVisible') {\n      return this.$translate('thisStepWillNotBeVisibleUntil');\n    }\n  }\n\n  /**\n   * Get the message that describes how to satisfy the criteria\n   * TODO: check if the criteria is satisfied\n   * @param criteria the criteria object that needs to be satisfied\n   * @returns the message to display to the student that describes how to\n   * satisfy the criteria\n   */\n  getCriteriaMessage(criteria) {\n    let message = '';\n\n    if (criteria != null) {\n      const name = criteria.name;\n      const params = criteria.params;\n\n      if (name === 'isCompleted') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('completeNodeTitle', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'isVisited') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('visitNodeTitle', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'isCorrect') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('correctlyAnswerNodeTitle', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'score') {\n        const nodeId = params.nodeId;\n        let nodeTitle = '';\n        let scoresString = '';\n\n        if (nodeId != null) {\n          nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n        }\n\n        const scores = params.scores;\n        if (scores != null) {\n          // get the required score\n          scoresString = scores.join(', ');\n        }\n\n        // generate the message\n        message += this.$translate('obtainAScoreOfXOnNodeTitle', { score: scoresString, nodeTitle: nodeTitle });\n      } else if (name === 'choiceChosen') {\n        const nodeId = params.nodeId;\n        const componentId = params.componentId;\n        const choiceIds = params.choiceIds;\n        let nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n        let choices = this.getChoiceTextByNodeIdAndComponentId(nodeId, componentId, choiceIds);\n        let choiceText = choices.join(', ');\n        message += this.$translate('chooseChoiceOnNodeTitle', { choiceText: choiceText, nodeTitle: nodeTitle });\n      } else if (name === 'usedXSubmits') {\n        const nodeId = params.nodeId;\n        let nodeTitle = '';\n\n        // get the number of times the student must submit\n        const requiredSubmitCount = params.requiredSubmitCount;\n\n        if (nodeId != null) {\n          // get the step number and title\n          nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n        }\n\n        // generate the message\n        if (requiredSubmitCount == 1) {\n          message += this.$translate('submitXTimeOnNodeTitle', { requiredSubmitCount: requiredSubmitCount, nodeTitle: nodeTitle });\n        } else {\n          message += this.$translate('submitXTimesOnNodeTitle', { requiredSubmitCount: requiredSubmitCount, nodeTitle: nodeTitle });\n        }\n      } else if (name === 'branchPathTaken') {\n        const fromNodeId = params.fromNodeId;\n        const fromNodeTitle = this.getNodePositionAndTitleByNodeId(fromNodeId);\n        const toNodeId = params.toNodeId;\n        const toNodeTitle = this.getNodePositionAndTitleByNodeId(toNodeId);\n        message += this.$translate('branchPathTakenFromTo', { fromNodeTitle: fromNodeTitle, toNodeTitle: toNodeTitle });\n      } else if (name === 'isPlanningActivityCompleted') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('completeNodeTitle', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'wroteXNumberOfWords') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const requiredNumberOfWords = params.requiredNumberOfWords;\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('writeXNumberOfWordsOnNodeTitle',\n              { requiredNumberOfWords: requiredNumberOfWords, nodeTitle: nodeTitle });\n        }\n      } else if (name === 'isVisible') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('nodeTitleIsVisible', { nodeTitle: nodeTitle });\n        }\n      } else if (name === 'isVisitable') {\n        const nodeId = params.nodeId;\n        if (nodeId != null) {\n          const nodeTitle = this.getNodePositionAndTitleByNodeId(nodeId);\n          message += this.$translate('nodeTitleIsVisitable', { nodeTitle: nodeTitle });\n        }\n      }\n    }\n    return message;\n  }\n\n  /**\n   * Get the choices of a Multiple Choice component.\n   * @param nodeId The node id.\n   * @param componentId The component id.\n   * @return The choices from the component.\n   */\n  getChoicesByNodeIdAndComponentId(nodeId, componentId) {\n    let choices = [];\n    let component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null && component.choices != null) {\n      choices = component.choices;\n    }\n    return choices;\n  }\n\n  /**\n   * Get the choice text for the given choice ids of a multiple choice component.\n   * @param nodeId The node id of the component.\n   * @param componentId The component id of the component.\n   * @param choiceIds An array of choice ids.\n   * @return An array of choice text strings.\n   */\n  getChoiceTextByNodeIdAndComponentId(nodeId, componentId, choiceIds) {\n    let choices = this.getChoicesByNodeIdAndComponentId(nodeId, componentId);\n    let choicesText = [];\n    for (let choice of choices) {\n      if (choiceIds.indexOf(choice.id) != -1) {\n        choicesText.push(choice.text);\n      }\n    }\n    return choicesText;\n  }\n\n  /**\n   * Get the start id of a group\n   * @param nodeId get the start id of this group\n   * @returns the start id of the group\n   */\n  getGroupStartId(nodeId) {\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n\n      if (node != null) {\n        return node.startId;\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the start id of the node's parent group\n   * @param nodeId we will get the parent of this node and then look\n   * for the start id of the parent\n   * @returns the start id of the parent\n   */\n  getParentGroupStartId(nodeId) {\n    if (nodeId != null) {\n      const parentGroup = this.getParentGroup(nodeId);\n      if (parentGroup != null) {\n        return parentGroup.startId;\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Update the transitions so that the fromGroup points to the newToGroup\n   *\n   * Before\n   * fromGroup -> oldToGroup -> newToGroup\n   *\n   * After\n   * fromGroup -> newToGroup\n   * oldToGroup becomes dangling and has no transitions to or from it\n   */\n  updateTransitionsForExtractingGroup(fromGroupId, oldToGroupId, newToGroupId) {\n    /*\n     * make the transitions\n     * fromGroup -> newToGroup\n     */\n    if (fromGroupId != null && oldToGroupId != null) {\n      const fromGroup = this.getNodeById(fromGroupId);\n      const oldToGroup = this.getNodeById(oldToGroupId);\n      let newToGroup = null;\n      let newToGroupStartId = null;\n\n      if (newToGroupId != null) {\n        newToGroup = this.getNodeById(newToGroupId);\n      }\n\n      if (newToGroup != null) {\n        newToGroupStartId = newToGroup.startId;\n      }\n\n      if (fromGroup != null && oldToGroup != null) {\n        const childIds = fromGroup.ids;\n\n        // update the children of the from group to point to the new to group\n        if (childIds != null) {\n          for (let childId of childIds) {\n            const child = this.getNodeById(childId);\n            const transitions = this.getTransitionsByFromNodeId(childId);\n\n            if (transitions != null) {\n              for (let t = 0; t < transitions.length; t++) {\n                const transition = transitions[t];\n                if (transition != null) {\n                  const toNodeId = transition.to;\n                  if (toNodeId === oldToGroupId) {\n                    // the transition is to the group\n                    if (newToGroupId == null && newToGroupStartId == null) {\n                      // there is no new to group so we will remove the transition\n                      transitions.splice(t, 1);\n                      t--;\n                    } else {\n                      // make the transition point to the new to group\n                      transition.to = newToGroupId;\n                    }\n                  } else if (this.isNodeInGroup(toNodeId, oldToGroupId)) {\n                    // the transition is to a node in the group\n                    if (newToGroupId == null && newToGroupStartId == null) {\n                      // there is no new to group so we will remove the transition\n                      transitions.splice(t, 1);\n                      t--;\n                    } else if (newToGroupStartId == null || newToGroupStartId == '') {\n                      // make the transition point to the new to group\n                      transition.to = newToGroupId;\n                    } else {\n                      // make the transition point to the new group start id\n                      transition.to = newToGroupStartId;\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    /*\n     * remove the transitions from the oldToGroup\n     */\n    if (oldToGroupId != null && newToGroupId != null) {\n      const oldToGroup = this.getNodeById(oldToGroupId);\n      if (oldToGroup != null) {\n        const childIds = oldToGroup.ids;\n\n        // remove the transitions from the old to group that point to the new to group\n        if (childIds != null) {\n          for (let childId of childIds) {\n            const child = this.getNodeById(childId);\n            const transitions = this.getTransitionsByFromNodeId(childId);\n            if (transitions != null) {\n              for (let t = 0; t < transitions.length; t++) {\n                const transition = transitions[t];\n                if (transition != null) {\n                  const toNodeId = transition.to;\n                  if (toNodeId === newToGroupId) {\n                    // the transition is to the group so we will remove it\n                    transitions.splice(t, 1);\n                    t--;\n                  } else if (this.isNodeInGroup(toNodeId, newToGroupId)) {\n                    // the transition is to a node in the group so we will remove it\n                    transitions.splice(t, 1);\n                    t--;\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Update the transitions so that the fromGroup points to the newToGroup\n   *\n   * Before\n   * fromGroup -> oldToGroup\n   * newToGroup is dangling and has no transitions to or from it\n   *\n   * After\n   * fromGroup -> newToGroup -> oldToGroup\n   */\n  updateTransitionsForInsertingGroup(fromGroupId, oldToGroupIds, newToGroupId) {\n    let fromGroup = null;\n    let newToGroup = null;\n    if (fromGroupId != null) {\n      fromGroup = this.getNodeById(fromGroupId);\n    }\n\n    if (newToGroupId != null) {\n      newToGroup = this.getNodeById(newToGroupId);\n    }\n\n    /*\n     * make the transitions that point to the old group now point\n     * to the new group\n     * fromGroup -> newToGroup\n     */\n    if (fromGroup != null && newToGroup != null) {\n      const childIds = fromGroup.ids;\n      const newToGroupStartId = newToGroup.startId;\n      if (childIds != null) {\n        for (let childId of childIds) {\n          const child = this.getNodeById(childId);\n\n          // get the transitions from the child\n          const transitions = this.getTransitionsByFromNodeId(childId);\n\n          if (transitions == null || transitions.length == 0) {\n            /*\n             * the child does not have any transitions so we will make it\n             * point to the new group\n             */\n            if (newToGroupStartId == null || newToGroupStartId == '') {\n              this.addToTransition(child, newToGroupId);\n            } else {\n              this.addToTransition(child, newToGroupStartId)\n            }\n          } else if (transitions != null) {\n            for (let transition of transitions) {\n              if (transition != null) {\n                const toNodeId = transition.to;\n                if (oldToGroupIds != null) {\n                  for (let oldToGroupId of oldToGroupIds) {\n                    if (toNodeId === oldToGroupId) {\n                      /*\n                       * the transition is to the group so we will update the transition\n                       * to the new group\n                       */\n                      transition.to = newToGroupId;\n                    } else if (this.isNodeInGroup(toNodeId, oldToGroupId)) {\n                      /*\n                       * the transition is to a node in the old group so we will update\n                       * the transition to point to the new group\n                       */\n                      if (newToGroupStartId == null || newToGroupStartId == '') {\n                        transition.to = newToGroupId;\n                      } else {\n                        transition.to = newToGroupStartId;\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    /*\n     * make the steps that do not have a transition now point to the old\n     * group\n     * newToGroup -> oldToGroup\n     */\n    if (newToGroup != null) {\n      const childIds = newToGroup.ids;\n      if (childIds != null) {\n        for (let childId of childIds) {\n          const child = this.getNodeById(childId);\n          const transitions = this.getTransitionsByFromNodeId(childId);\n\n          if (transitions == null || transitions.length == 0) {\n            if (oldToGroupIds != null) {\n              for (let oldToGroupId of oldToGroupIds) {\n                const oldToGroup = this.getNodeById(oldToGroupId);\n                if (oldToGroup != null) {\n                  const oldToGroupStartId = oldToGroup.startId;\n                  const transition = {};\n                  let toNodeId = '';\n                  if (oldToGroupStartId == null) {\n                    // there is no start node id so we will just point to the group\n                    toNodeId = oldToGroup;\n                  } else {\n                    // there is a start node id so we will point to it\n                    toNodeId = oldToGroupStartId;\n                  }\n\n                  // create the transition from the child to the old group\n                  this.addToTransition(child, toNodeId);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Update the child transitions because we are moving a group. We will\n   * update the transitions into and out of the group in the location\n   * we are extracting the group from and also in the location we are\n   * inserting the group into.\n   * @param node the group we are moving\n   * @param nodeId we will put the group after this node id\n   */\n  updateChildrenTransitionsForMovingGroup(node, nodeId) {\n    let transitionsBefore = null;\n\n    // get the group nodes that point to the group we are moving\n    const previousGroupNodes = this.getGroupNodesByToNodeId(node.id);\n\n    // get all the transitions from the group we are moving\n    const transitionsAfter = this.getTransitionsByFromNodeId(node.id);\n\n    let extracted = false;\n\n    /*\n     * extract the group we are moving by updating the transitions of the\n     * from group and the new to group. also remove the transitions from the\n     * group we are moving.\n     */\n\n    for (let previousGroupNode of previousGroupNodes) {\n      if (transitionsAfter == null || transitionsAfter.length == 0) {\n        // the group we are moving does not have any transitions\n\n        /*\n         * remove the transitions to the group we are moving and make\n         * new transitions from the from group to the new to group\n         */\n        this.updateTransitionsForExtractingGroup(previousGroupNode.id, node.id, null);\n        extracted = true;\n      } else {\n        // the group we are moving has transitions\n\n        // make the previous group point to the new to group\n        for (let transitionAfter of transitionsAfter) {\n          if (transitionAfter != null) {\n            const toNodeId = transitionAfter.to;\n\n            /*\n             * remove the transitions to the group we are moving and make\n             * new transitions from the from group to the new to group\n             */\n            this.updateTransitionsForExtractingGroup(previousGroupNode.id, node.id, toNodeId);\n            extracted = true;\n          }\n        }\n      }\n    }\n\n    if (!extracted) {\n      /*\n       * we have not removed the transitions yet because the group\n       * we are moving does not have any groups before it\n       */\n\n      if (transitionsAfter != null) {\n        // remove the transitions from the group we are moving\n        for (let transitionAfter of transitionsAfter) {\n          if (transitionAfter != null) {\n            const toNodeId = transitionAfter.to;\n\n            // remove the transitions to the group we are moving\n            this.updateTransitionsForExtractingGroup(null, node.id, toNodeId);\n            extracted = true;\n          }\n        }\n      }\n    }\n\n    let inserted = false;\n\n    /*\n     * create the transitions from the from group to the group we are moving\n     * and the transitions from the group we are moving to the old to group\n     */\n    if (nodeId != null) {\n      // get the transitions from the previous group to the next group\n      const transitionsAfter = this.getTransitionsByFromNodeId(nodeId);\n\n      for (let transitionAfter of transitionsAfter) {\n        if (transitionAfter != null) {\n          const toNodeId = transitionAfter.to;\n\n          /*\n           * create the transitions that traverse from the from group\n           * to the group we are moving. also create the transitions\n           * that traverse from the group we are moving to the old\n           * to group.\n           */\n          this.updateTransitionsForInsertingGroup(nodeId, [toNodeId], node.id);\n          inserted = true;\n        }\n      }\n    }\n\n    if (!inserted) {\n      /*\n       * we have not inserted the transitions yet because there were no\n       * previous group transitions\n       */\n\n      if (nodeId == null) {\n        /*\n         * the previous node id is null which means there was no previous\n         * group. this means the group we are inserting will become the\n         * first group. this happens when the group we are moving\n         * is moved inside the root (group0).\n         */\n\n        const startGroupId = this.getStartGroupId();\n\n        if (startGroupId != null) {\n          // get the start group for the whole project (group0)\n          const startGroup = this.getNodeById(startGroupId);\n\n          if (startGroup != null) {\n            // get the first activity\n            const firstGroupId = startGroup.startId;\n\n            /*\n             * create the transitions that traverse from the group\n             * we are moving to the previous first activity.\n             */\n            this.updateTransitionsForInsertingGroup(nodeId, [firstGroupId], node.id);\n          }\n        }\n      } else {\n        /*\n         * we have not inserted the group yet because the from group doesn't\n         * have a group after it\n         */\n\n        /*\n         * create the transitions that traverse from the from group\n         * to the group we are moving.\n         */\n        this.updateTransitionsForInsertingGroup(nodeId, null, node.id);\n      }\n    }\n  }\n\n  /**\n   * Get the active nodes.\n   * @return An array of the active node objects.\n   */\n  getActiveNodes() {\n    return this.project.nodes;\n  }\n\n  /**\n   * Get the inactive nodes\n   * @returns the inactive nodes\n   */\n  getInactiveNodes() {\n    let inactiveNodes = [];\n    if (this.project != null) {\n      if (this.project.inactiveNodes == null) {\n        this.project.inactiveNodes = [];\n      }\n      inactiveNodes = this.project.inactiveNodes;\n    }\n    return inactiveNodes;\n  }\n\n  /**\n   * Remove the node from the active nodes\n   * @param nodeId the node to remove\n   * @returns the node that we have removed\n   */\n  removeNodeFromActiveNodes(nodeId) {\n    let node = null;\n    if (nodeId != null) {\n      const activeNodes = this.project.nodes;\n      if (activeNodes != null) {\n        for (let a = 0; a < activeNodes.length; a++) {\n          const activeNode = activeNodes[a];\n          if (activeNode != null) {\n            if (nodeId === activeNode.id) {\n              node = activeNode;\n\n              // remove the node from the array\n              activeNodes.splice(a, 1);\n\n              if (activeNode.type == 'group') {\n                this.removeChildNodesFromActiveNodes(activeNode);\n              }\n              break;\n            }\n          }\n        }\n      }\n    }\n    return node;\n  }\n\n  /**\n   * Move the child nodes of a group from the active nodes and put them into\n   * the inactive nodes.\n   * @param node The group node.\n   */\n  removeChildNodesFromActiveNodes(node) {\n    if (node != null) {\n      let childIds = node.ids;\n      for (let childId of childIds) {\n        this.removeNodeFromActiveNodes(childId);\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the inactive nodes array\n   * @param nodeId the node to remove\n   * @returns the node that was removed\n   */\n  removeNodeFromInactiveNodes(nodeId) {\n    let node = null;\n    if (nodeId != null) {\n      let parentGroup = this.getParentGroup(nodeId);\n      if (parentGroup != null) {\n        // The node has a parent so we will remove it from the parent.\n        this.removeChildFromParent(nodeId);\n      }\n\n      let inactiveNodes = this.project.inactiveNodes;\n      if (inactiveNodes != null) {\n        for (let i = 0; i < inactiveNodes.length; i++) {\n          let inactiveNode = inactiveNodes[i];\n          if (inactiveNode != null) {\n            if (nodeId === inactiveNode.id) {\n              node = inactiveNode;\n\n              // remove the node from the array\n              inactiveNodes.splice(i, 1);\n              break;\n            }\n          }\n        }\n      }\n      this.removeNodeFromInactiveStepNodes(nodeId);\n      this.removeNodeFromInactiveGroupNodes(nodeId);\n    }\n    return node;\n  }\n\n  /**\n   * Remove the child node from the parent group.\n   * @param nodeId The child node to remove from the parent.\n   */\n  removeChildFromParent(nodeId) {\n    let parentGroup = this.getParentGroup(nodeId);\n    if (parentGroup != null) {\n      // Remove the child from the parent\n      for (let i = 0; i < parentGroup.ids.length; i++) {\n        let childId = parentGroup.ids[i];\n        if (nodeId == childId) {\n          parentGroup.ids.splice(i, 1);\n          break;\n        }\n      }\n      if (nodeId == parentGroup.startId) {\n        /*\n         * The child we removed was the start id of the group so we\n         * will update the start id.\n         */\n        let startIdUpdated = false;\n        let transitions = this.getTransitionsByFromNodeId(nodeId);\n        if (transitions != null &&\n          transitions.length > 0 &&\n          transitions[0] != null &&\n          transitions[0].to != null) {\n          parentGroup.startId = transitions[0].to;\n          startIdUpdated = true;\n        }\n        if (!startIdUpdated && parentGroup.ids.length > 0) {\n          parentGroup.startId = parentGroup.ids[0];\n          startIdUpdated = true;\n        }\n        if (!startIdUpdated) {\n          parentGroup.startId = '';\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the inactive step nodes array.\n   * @param nodeId The node id of the node we want to remove from the\n   * inactive step nodes array.\n   */\n  removeNodeFromInactiveStepNodes(nodeId) {\n    for (let i = 0; i < this.inactiveStepNodes.length; i++) {\n      let inactiveStepNode = this.inactiveStepNodes[i];\n      if (nodeId == inactiveStepNode.id) {\n        this.inactiveStepNodes.splice(i, 1);\n        break;\n      }\n    }\n  }\n\n  /**\n   * Remove the node from the inactive group nodes array.\n   * @param nodeId The node id of the group we want to remove from the\n   * inactive group nodes array.\n   */\n  removeNodeFromInactiveGroupNodes(nodeId) {\n    for (let i = 0; i < this.inactiveGroupNodes.length; i++) {\n      let inactiveGroupNode = this.inactiveGroupNodes[i];\n      if (nodeId == inactiveGroupNode.id) {\n        this.inactiveGroupNodes.splice(i, 1);\n        break;\n      }\n    }\n  }\n\n  /**\n   * Load the inactive nodes\n   * @param nodes the inactive nodes\n   */\n  loadInactiveNodes(nodes) {\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          const nodeId = node.id;\n\n          this.setIdToNode(nodeId, node);\n          this.setIdToElement(nodeId, node);\n          if (node.type == 'group') {\n            this.inactiveGroupNodes.push(node);\n          } else {\n            this.inactiveStepNodes.push(node);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if the node is active\n   * @param nodeId the node to check\n   * @param componentId (optional) the component to check\n   * @returns whether the node or component is active\n   */\n  isActive(nodeId, componentId) {\n    if (nodeId != null) {\n      if (nodeId === 'inactiveNodes') {\n        // this occurs when the author puts a step into the inactive nodes\n        return false;\n      } else if (nodeId === 'inactiveGroups') {\n        // this occurs when the author puts a group into the inactive groups\n        return false;\n      } else if (this.isGroupNode(nodeId)) {\n        return this.isGroupActive(nodeId);\n      } else {\n        // the node is a step node\n\n        const activeNodes = this.project.nodes;\n        if (activeNodes != null) {\n          for (let activeNode of activeNodes) {\n            if (activeNode != null) {\n              const activeNodeId = activeNode.id;\n              if (nodeId == activeNodeId) {\n                // we have found the node id we are looking for\n\n                if (componentId != null) {\n                  // we need to find the node id and component id\n\n                  const activeComponents = activeNode.components;\n\n                  if (activeComponents != null) {\n                    for (let activeComponent of activeComponents) {\n                      if (activeComponent != null) {\n                        const activeComponentId = activeComponent.id;\n                        if (componentId == activeComponentId) {\n                          /*\n                           * we have found the component id we are\n                           * looking for so we are done\n                           */\n                          return true;\n                        }\n                      }\n                    }\n                  }\n                } else {\n                  //we only need to find the node id so we are done\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if a group is active.\n   * @param nodeId the node id of the group\n   */\n  isGroupActive(nodeId) {\n    for (let activeNode of this.project.nodes) {\n      if (nodeId == activeNode.id) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Move the node to the active nodes array\n   */\n  moveToActive(node) {\n    if (node != null) {\n      if (!this.isActive(node.id)) {\n        // the node is inactive so we will move it to the active array\n\n        // remove the node from inactive nodes array\n        this.removeNodeFromInactiveNodes(node.id);\n\n        this.addNode(node);\n\n        if (this.isGroupNode(node.id)) {\n          /*\n           * This is a group node so we will also move all of its\n           * children to active.\n           */\n          let childIds = node.ids;\n          for (let childId of childIds) {\n            let childNode = this.removeNodeFromInactiveNodes(childId);\n            this.addNode(childNode);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Move the node to the inactive nodes array\n   * @param node the node to move\n   * @param nodeIdToInsertAfter place the node after this\n   */\n  moveToInactive(node, nodeIdToInsertAfter) {\n    if (node != null) {\n      if (this.isActive(node.id)) {\n        // the node is active so we will move it to the inactive array\n\n        this.removeNodeFromActiveNodes(node.id);\n\n        // add the node to the inactive array\n        this.addInactiveNode(node, nodeIdToInsertAfter);\n      }\n    }\n  }\n\n  /**\n   * Move the node from active to inside an inactive group\n   * @param node the node to move\n   * @param nodeIdToInsertInside place the node inside this\n   */\n  moveFromActiveToInactiveInsertInside(node, nodeIdToInsertInside) {\n    this.removeNodeFromActiveNodes(node.id);\n\n    // add the node to the inactive array\n    this.addInactiveNodeInsertInside(node, nodeIdToInsertInside);\n  }\n\n  /**\n   * Move the node from inactive to inside an inactive group\n   * @param node the node to move\n   * @param nodeIdToInsertInside place the node inside this\n   */\n  moveFromInactiveToInactiveInsertInside(node, nodeIdToInsertInside) {\n    this.removeNodeFromInactiveNodes(node.id);\n\n    if (this.isGroupNode(node.id)) {\n      /*\n       * remove the group's child nodes from our data structures so that we can\n       * add them back in later\n       */\n      let childIds = node.ids;\n      for (let childId of childIds) {\n        let childNode = this.getNodeById(childId);\n        let inactiveNodesIndex = this.project.inactiveNodes.indexOf(childNode);\n        if (inactiveNodesIndex != -1) {\n          this.project.inactiveNodes.splice(inactiveNodesIndex, 1);\n        }\n        let inactiveStepNodesIndex = this.inactiveStepNodes.indexOf(childNode);\n        if (inactiveStepNodesIndex != -1) {\n          this.inactiveStepNodes.splice(inactiveStepNodesIndex, 1);\n        }\n      }\n    }\n\n    // add the node to the inactive array\n    this.addInactiveNodeInsertInside(node, nodeIdToInsertInside);\n  }\n\n  /**\n   * Add the node to the inactive nodes array\n   * @param node the node to move\n   * @param nodeIdToInsertAfter place the node after this\n   */\n  addInactiveNode(node, nodeIdToInsertAfter) {\n    if (node != null) {\n      const inactiveNodes = this.project.inactiveNodes;\n\n      if (inactiveNodes != null) {\n        // clear the transitions from this node\n        if (node.transitionLogic != null) {\n          node.transitionLogic.transitions = [];\n        }\n\n        if (nodeIdToInsertAfter == null || nodeIdToInsertAfter === 'inactiveNodes' || nodeIdToInsertAfter === 'inactiveSteps' || nodeIdToInsertAfter === 'inactiveGroups') {\n          // put the node at the beginning of the inactive steps\n          inactiveNodes.splice(0, 0, node);\n        } else {\n          // put the node after one of the inactive nodes\n\n          let added = false;\n          for (let i = 0; i < inactiveNodes.length; i++) {\n            const inactiveNode = inactiveNodes[i];\n            if (inactiveNode != null) {\n              if (nodeIdToInsertAfter === inactiveNode.id) {\n                let parentGroup = this.getParentGroup(nodeIdToInsertAfter);\n                if (parentGroup != null) {\n                  this.insertNodeAfterInGroups(node.id, nodeIdToInsertAfter);\n                  this.insertNodeAfterInTransitions(node, nodeIdToInsertAfter);\n                }\n                // we have found the position to place the node\n                inactiveNodes.splice(i + 1, 0, node);\n                added = true;\n              }\n            }\n          }\n\n          if (!added) {\n            /*\n             * we haven't added the node yet so we will just add it\n             * to the end of the array\n             */\n            inactiveNodes.push(node);\n          }\n        }\n\n        if (node.type == 'group') {\n          this.inactiveGroupNodes.push(node.id);\n          this.addGroupChildNodesToInactive(node);\n        } else {\n          this.inactiveStepNodes.push(node.id);\n        }\n      }\n    }\n  }\n\n  /**\n   * Add the node to the inactive nodes array\n   * @param node the node to move\n   * @param nodeIdToInsertInside place the node inside this group\n   */\n  addInactiveNodeInsertInside(node, nodeIdToInsertInside) {\n    if (node != null) {\n      const inactiveNodes = this.project.inactiveNodes;\n      const inactiveGroups = this.getInactiveGroupNodes();\n\n      if (inactiveNodes != null) {\n        // clear the transitions from this node\n        if (node.transitionLogic != null) {\n          node.transitionLogic.transitions = [];\n        }\n\n        if (nodeIdToInsertInside == null || nodeIdToInsertInside === 'inactiveNodes' || nodeIdToInsertInside === 'inactiveSteps' || nodeIdToInsertInside === 'inactiveGroups') {\n          // put the node at the beginning of the inactive steps\n          inactiveNodes.splice(0, 0, node);\n        } else {\n          // put the node after one of the inactive nodes\n\n          let added = false;\n          for (let inactiveGroup of inactiveGroups) {\n            if (nodeIdToInsertInside == inactiveGroup.id) {\n              // we have found the group we want to insert into\n              this.insertNodeInsideInTransitions(node.id, nodeIdToInsertInside);\n              this.insertNodeInsideInGroups(node.id, nodeIdToInsertInside);\n\n              /*\n               * Loop through the inactive nodes array which contains all\n               * inactive groups and inactive nodes in a flattened array.\n               * Find the inactive group and place the node right after it\n               * for the sake of keeping things organized.\n               */\n              for (let i = 0; i < inactiveNodes.length; i++) {\n                let inactiveNode = inactiveNodes[i];\n                if (nodeIdToInsertInside == inactiveNode.id) {\n                  inactiveNodes.splice(i + 1, 0, node);\n                  added = true;\n                }\n              }\n            }\n          }\n\n          if (!added) {\n            /*\n             * we haven't added the node yet so we will just add it\n             * to the end of the array\n             */\n            inactiveNodes.push(node);\n          }\n        }\n\n        if (node.type == 'group') {\n          this.inactiveGroupNodes.push(node.id);\n          this.addGroupChildNodesToInactive(node);\n        } else {\n          this.inactiveStepNodes.push(node.id);\n        }\n      }\n    }\n  }\n\n  /**\n   * Add a group's child nodes to the inactive nodes.\n   * @param node The group node.\n   */\n  addGroupChildNodesToInactive(node) {\n    if (node != null) {\n      let childIds = node.ids;\n      for (let childId of childIds) {\n        let childNode = this.getNodeById(childId);\n        this.project.inactiveNodes.push(childNode);\n        this.inactiveStepNodes.push(childNode);\n      }\n    }\n  }\n\n  /**\n   * Move an inactive node within the inactive nodes array\n   * @param node the node to move\n   * @param nodeIdToInsertAfter place the node after this\n   */\n  moveInactiveNode(node, nodeIdToInsertAfter) {\n    if (node != null) {\n      const inactiveNodes = this.project.inactiveNodes;\n      if (inactiveNodes != null) {\n        // remove the node from inactive nodes\n\n        for (let i = 0; i < inactiveNodes.length; i++) {\n          const inactiveNode = inactiveNodes[i];\n          if (inactiveNode != null) {\n            if (node.id === inactiveNode.id) {\n              // we have found the node we want to remove\n              inactiveNodes.splice(i, 1);\n            }\n          }\n        }\n\n        // add the node back into the inactive nodes\n\n        if (nodeIdToInsertAfter == null || nodeIdToInsertAfter === 'inactiveSteps' || nodeIdToInsertAfter === 'inactiveNodes') {\n          // put the node at the beginning of the inactive nodes\n          inactiveNodes.splice(0, 0, node);\n        } else {\n          // put the node after one of the inactive nodes\n\n          let added = false;\n          for (let i = 0; i < inactiveNodes.length; i++) {\n            const inactiveNode = inactiveNodes[i];\n            if (inactiveNode != null) {\n              if (nodeIdToInsertAfter === inactiveNode.id) {\n                // we have found the position to place the node\n                let parentGroup = this.getParentGroup(nodeIdToInsertAfter);\n                if (parentGroup != null) {\n                  this.insertNodeAfterInGroups(node.id, nodeIdToInsertAfter);\n                  this.insertNodeAfterInTransitions(node, nodeIdToInsertAfter);\n                }\n                inactiveNodes.splice(i + 1, 0, node);\n                added = true;\n              }\n            }\n          }\n\n          if (!added) {\n            /*\n             * we haven't added the node yet so we will just add it\n             * to the end of the array\n             */\n            inactiveNodes.push(node);\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Remove transitions that go out of the group\n   * @param nodeId the group id\n   */\n  removeTransitionsOutOfGroup(nodeId) {\n    if (nodeId != null) {\n      const group = this.getNodeById(nodeId);\n      if (group != null) {\n        const childIds = group.ids;\n        if (childIds != null) {\n          for (let childId of childIds) {\n            if (childId != null) {\n              const transitions = this.getTransitionsByFromNodeId(childId);\n              if (transitions != null) {\n                for (let t = 0; t < transitions.length; t++) {\n                  const transition = transitions[t];\n                  if (transition != null) {\n                    const toNodeId = transition.to;\n                    if (toNodeId != null) {\n                      const toNodeIdParentGroupId = this.getParentGroupId(toNodeId);\n                      if (nodeId != toNodeIdParentGroupId) {\n                        /*\n                         * the parent group is different which means it is a\n                         * transition that goes out of the group\n                         */\n\n                        // remove the transition\n                        transitions.splice(t, 1);\n                        t--;\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /*\n   * Update the step transitions that point into the group we are moving\n   * For example\n   * group1 has children node1 and node2 (node2 transitions to node3)\n   * group2 has children node3 and node4 (node4 transitions to node5)\n   * group3 has children node5 and node6\n   * if we move group2 after group3 we will need to change the\n   * transition from node2 to node3 and make node2 transition to node5\n   * the result will be\n   * group1 has children node1 and node2 (node2 transitions to node5)\n   * group3 has children node5 and node6\n   * group2 has children node3 and node4 (node4 transitions to node5)\n   * note: the (node4 transition to node5) will be removed later\n   * when is called removeTransitionsOutOfGroup\n   * note: when group2 is added in a later function call, we will add\n   * the node6 to node3 transition\n   * @param groupThatTransitionsToGroupWeAreMoving the group object\n   * that transitions to the group we are moving. we may need to update\n   * the transitions of this group's children.\n   * @param groupIdWeAreMoving the group id of the group we are moving\n   */\n  updateChildrenTransitionsIntoGroupWeAreMoving(\n      groupThatTransitionsToGroupWeAreMoving, groupIdWeAreMoving) {\n    if (groupThatTransitionsToGroupWeAreMoving != null &&\n        groupIdWeAreMoving != null) {\n      const group = this.getNodeById(groupIdWeAreMoving);\n      if (group != null) {\n        // get all the nodes that have a transition to the node we are removing\n        const nodesByToNodeId = this.getNodesByToNodeId(groupIdWeAreMoving);\n\n        // get the transitions of the node we are removing\n        const nodeToRemoveTransitionLogic = group.transitionLogic;\n        let nodeToRemoveTransitions = [];\n\n        if (nodeToRemoveTransitionLogic != null && nodeToRemoveTransitionLogic.transitions != null) {\n          nodeToRemoveTransitions = nodeToRemoveTransitionLogic.transitions;\n        }\n\n        if (nodeToRemoveTransitions.length == 0) {\n          /*\n           * The group we are moving is the last group in the project\n           * and does not have any transitions. We will loop through\n           * all the nodes that transition into this group and remove\n           * those transitions.\n           */\n\n          // get child ids of the group that comes before the group we are moving\n          const childIds = groupThatTransitionsToGroupWeAreMoving.ids;\n\n          if (childIds != null) {\n            for (let childId of childIds) {\n              const transitionsFromChild = this.getTransitionsByFromNodeId(childId);\n              if (transitionsFromChild != null) {\n                for (let tfc = 0; tfc < transitionsFromChild.length; tfc++) {\n                  const transitionFromChild = transitionsFromChild[tfc];\n                  if (transitionFromChild != null) {\n                    const toNodeId = transitionFromChild.to;\n\n                    // get the parent group id of the toNodeId\n                    const toNodeIdParentGroupId = this.getParentGroupId(toNodeId);\n\n                    if (groupIdWeAreMoving === toNodeIdParentGroupId) {\n                      // the transition is to a child in the group we are moving\n\n                      // remove the transition\n                      transitionsFromChild.splice(tfc, 1);\n\n                      /*\n                       * move the counter back one because we have just removed an\n                       * element from the array\n                       */\n                      tfc--;\n                    }\n                  }\n                }\n              }\n            }\n          }\n        } else if (nodeToRemoveTransitions.length > 0) {\n          // get the first group that comes after the group we are removing\n          const firstNodeToRemoveTransition = nodeToRemoveTransitions[0];\n          const firstNodeToRemoveTransitionToNodeId = firstNodeToRemoveTransition.to;\n\n          if (this.isGroupNode(firstNodeToRemoveTransitionToNodeId)) {\n            // get the group that comes after the group we are moving\n            const groupNode = this.getNodeById(firstNodeToRemoveTransitionToNodeId);\n\n            // get child ids of the group that comes before the group we are moving\n            const childIds = groupThatTransitionsToGroupWeAreMoving.ids;\n\n            if (childIds != null) {\n              for (let childId of childIds) {\n                const transitionsFromChild = this.getTransitionsByFromNodeId(childId);\n                if (transitionsFromChild != null) {\n                  for (let transitionFromChild of transitionsFromChild) {\n                    if (transitionFromChild != null) {\n                      const toNodeId = transitionFromChild.to;\n\n                      // get the parent group id of the toNodeId\n                      const toNodeIdParentGroupId = this.getParentGroupId(toNodeId);\n\n                      if (groupIdWeAreMoving === toNodeIdParentGroupId) {\n                        // the transition is to a child in the group we are moving\n\n                        if (groupNode.startId == null) {\n                          // change the transition to point to the after group\n                          transitionFromChild.to = firstNodeToRemoveTransitionToNodeId;\n                        } else {\n                          // change the transition to point to the start id of the after group\n                          transitionFromChild.to = groupNode.startId;\n                        }\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Check if a node generates work by looking at all of its components\n   * @param nodeId the node id\n   * @return whether the node generates work\n   */\n  nodeHasWork(nodeId) {\n    if (nodeId != null) {\n      const nodeContent = this.getNodeContentByNodeId(nodeId);\n      if (nodeContent != null) {\n        const components = nodeContent.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              const componentHasWork = this.componentHasWork(component);\n              if (componentHasWork) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if a component generates work\n   * @param component check if this component generates work\n   * @return whether the component generates work\n   */\n  componentHasWork(component) {\n    if (component != null) {\n      const componentType = component.type;\n      const componentService = this.getComponentService(componentType);\n      if (componentService != null) {\n        return componentService.componentHasWork(component);\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get a component service\n   * @param componentType the component type\n   * @return the component service\n   */\n  getComponentService(componentType) {\n    let componentService = null;\n    if (componentType != null) {\n      const componentServiceName = componentType + 'Service';\n\n      /*\n       * check if we have previously retrieved the component service.\n       * if have previously retrieved the component service it will\n       * be in the componentServices map\n       */\n      componentService = this.componentServices[componentServiceName];\n\n      if (componentService == null) {\n        /*\n         * we have not previously retrieved the component service so\n         * we will get it now\n         */\n        componentService = this.$injector.get(componentServiceName);\n\n        /*\n         * save the component service to the map so we can easily\n         * retrieve it later\n         */\n        this.componentServices[componentServiceName] = componentService;\n      }\n    }\n    return componentService;\n  }\n\n  /**\n   * Get an unused component id\n   * @param componentIdsToSkip (optional) An array of additional component ids\n   * to skip. This is used when we are creating multiple new components. There\n   * is avery small chance that we create duplicate component ids that aren't\n   * already in the project. We avoid this problem by using this parameter.\n   * Example\n   * We want to create two new components. We first generate a new component\n   * id for the first new component for example \"1234567890\". Then we generate\n   * a new component id for the second new component and pass in\n   * [\"1234567890\"] as componentIdsToSkip because the new \"1234567890\"\n   * component hasn't actually been added to the project yet.\n   * @return a component id that isn't already being used in the project\n   */\n  getUnusedComponentId(componentIdsToSkip) {\n    // we want to make an id with 10 characters\n    const idLength = 10;\n\n    let newComponentId = this.UtilService.generateKey(idLength);\n\n    // check if the component id is already used in the project\n    if (this.isComponentIdUsed(newComponentId)) {\n      /*\n       * the component id is already used in the project so we need to\n       * try generating another one\n       */\n      let alreadyUsed = true;\n\n      /*\n       * keep trying to generate a new component id until we have found\n       * one that isn't already being used\n       */\n      while(!alreadyUsed) {\n        // generate a new id\n        newComponentId = this.UtilService.generateKey(idLength);\n\n        // check if the id is already being used in the project\n        alreadyUsed = this.isComponentIdUsed(newComponentId);\n\n        if (componentIdsToSkip != null && componentIdsToSkip.indexOf(newComponentId) != -1) {\n          /*\n           * the new component is in the componentIdsToSkip so it has\n           * already been used\n           */\n          alreadyUsed = true;\n        }\n      }\n    }\n    return newComponentId;\n  }\n\n  /**\n   * Check if the component id is already being used in the project\n   * @param componentId check if this component id is already being used in\n   * the project\n   * @return whether the component id is already being used in the project\n   */\n  isComponentIdUsed(componentId) {\n    for (let node of this.project.nodes) {\n      if (node != null) {\n        const components = node.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              if (componentId === component.id) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n\n    for (let node of this.project.inactiveNodes) {\n      if (node != null) {\n        const components = node.components;\n        if (components != null) {\n          for (let component of components) {\n            if (component != null) {\n              if (componentId === component.id) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get the next available constraint id for a node\n   * @param nodeId get the next available constraint id for this node\n   * e.g. node8Constraint2\n   * @return the next available constraint id for the node\n   */\n  getNextAvailableConstraintIdForNodeId(nodeId) {\n    let nextAvailableConstraintId = null;\n    if (nodeId != null) {\n      // an array to hold the constraint ids that are already being used\n      const usedConstraintIds = [];\n      const node = this.getNodeById(nodeId);\n\n      if (node != null) {\n        const constraints = node.constraints;\n        if (constraints != null) {\n          for (let constraint of constraints) {\n            if (constraint != null) {\n              const constraintId = constraint.id;\n\n              // add the constraint id to the array of used constraint ids\n              usedConstraintIds.push(constraintId);\n            }\n          }\n        }\n      }\n\n      let foundNextAvailableConstraintId = false;\n      let counter = 1;\n\n      while (!foundNextAvailableConstraintId) {\n        const potentialConstraintId = nodeId + 'Constraint' + counter;\n        // check if the constraint id has been used\n        if (usedConstraintIds.indexOf(potentialConstraintId) == -1) {\n          nextAvailableConstraintId = potentialConstraintId;\n          foundNextAvailableConstraintId = true;\n        } else {\n          counter++;\n        }\n      }\n    }\n    return nextAvailableConstraintId;\n  }\n\n  /**\n   * Get the node ids in the branch by looking for nodes that have branch\n   * path taken constraints with the given fromNodeId and toNodeId\n   * @param fromNodeId the from node id\n   * @param toNodeId the to node id\n   * @return an array of nodes that are in the branch path\n   */\n  getNodeIdsInBranch(fromNodeId, toNodeId) {\n    const nodeIdsInBranch = [];\n    const nodes = this.getNodes();\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null) {\n          if (this.hasBranchPathTakenConstraint(node, fromNodeId, toNodeId)) {\n            /*\n             * this node has the the branch path taken constraint we are\n             * looking for\n             */\n            nodeIdsInBranch.push(node.id);\n          }\n        }\n      }\n    }\n    this.orderNodeIds(nodeIdsInBranch);\n    return nodeIdsInBranch;\n  }\n\n  /**\n   * Order the node ids so that they show up in the same order as in the\n   * project.\n   * @param constraints An array of node ids.\n   * @return An array of ordered node ids.\n   */\n  orderNodeIds(nodeIds) {\n    let orderedNodeIds = this.getFlattenedProjectAsNodeIds();\n    return nodeIds.sort(this.nodeIdsComparatorGenerator(orderedNodeIds));\n  }\n\n  /**\n   * Create the node ids comparator function that is used for sorting an\n   * array of node ids.\n   * @param orderedNodeIds An array of node ids in the order in which they\n   * show up in the project.\n   * @return A comparator that orders node ids in the order in which they show\n   * up in the project.\n   */\n  nodeIdsComparatorGenerator(orderedNodeIds) {\n    return function(nodeIdA, nodeIdB) {\n      let nodeIdAIndex = orderedNodeIds.indexOf(nodeIdA);\n      let nodeIdBIndex = orderedNodeIds.indexOf(nodeIdB);\n      if (nodeIdAIndex < nodeIdBIndex) {\n        return -1;\n      } else if (nodeIdAIndex > nodeIdBIndex) {\n        return 1;\n      }\n      return 0;\n    }\n  }\n\n  /**\n   * Check if a node has a branch path taken constraint\n   * @param node the node to check\n   * @param fromNodeId the from node id of the branch path taken\n   * @param toNodeId the to node id of the branch path taken\n   * @return whether the node has a branch path taken constraint with the\n   * given from node id and to node id\n   */\n  hasBranchPathTakenConstraint(node, fromNodeId, toNodeId) {\n    if (node != null) {\n      const constraints = node.constraints;\n      if (constraints != null) {\n        for (let constraint of constraints) {\n          if (constraint != null) {\n            const removalCriteria = constraint.removalCriteria;\n            if (removalCriteria != null) {\n              for (let removalCriterion of removalCriteria) {\n                if (removalCriterion != null) {\n                  const name = removalCriterion.name;\n                  if (name == 'branchPathTaken') {\n                    const params = removalCriterion.params;\n                    if (params != null) {\n                      if (fromNodeId == params.fromNodeId && toNodeId == params.toNodeId) {\n                        return true;\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Remove the branch path taken constraints from a node\n   * @param nodeId remove the constraints from this node\n   */\n  removeBranchPathTakenNodeConstraints(nodeId) {\n    const node = this.getNodeById(nodeId);\n    if (node != null) {\n      const constraints = node.constraints;\n      if (constraints != null) {\n        for (let c = 0; c < constraints.length; c++) {\n          const constraint = constraints[c];\n          if (constraint != null) {\n            const removalCriteria = constraint.removalCriteria;\n\n            if (removalCriteria != null) {\n              for (let removalCriterion of removalCriteria) {\n                if (removalCriterion != null) {\n                  if (removalCriterion.name == 'branchPathTaken') {\n                    const params = removalCriterion.params;\n                    constraints.splice(c, 1);\n                    // move the counter back one because we just removed a constraint\n                    c--;\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the branch path taken constraints from a node\n   * @param nodeId get the branch path taken constraints from this node\n   * @return an array of branch path taken constraints from the node\n   */\n  getBranchPathTakenConstraintsByNodeId(nodeId) {\n    const branchPathTakenConstraints = [];\n    if (nodeId != null) {\n      const node = this.getNodeById(nodeId);\n      if (node != null) {\n        const constraints = node.constraints;\n        if (constraints != null) {\n          for (let constraint of constraints) {\n            if (constraint != null) {\n              const removalCriteria = constraint.removalCriteria;\n              if (removalCriteria != null) {\n                for (let removalCriterion of removalCriteria) {\n                  if (removalCriterion != null) {\n                    if (removalCriterion.name == 'branchPathTaken') {\n                      /*\n                       * we have found a branch path taken constraint so\n                       * we will add the constraint to the array\n                       */\n                      branchPathTakenConstraints.push(constraint);\n                      break;\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return branchPathTakenConstraints;\n  }\n\n  /**\n   * Update the branch path taken constraint\n   * @param node update the branch path taken constraints in this node\n   * @param currentFromNodeId the current from node id\n   * @param currentToNodeId the current to node id\n   * @param newFromNodeId the new from node id\n   * @param newToNodeId the new to node id\n   */\n  updateBranchPathTakenConstraint(node, currentFromNodeId, currentToNodeId,\n      newFromNodeId, newToNodeId) {\n    if (node != null) {\n      const constraints = node.constraints;\n      if (constraints != null) {\n        for (let constraint of constraints) {\n          if (constraint != null) {\n            const removalCriteria = constraint.removalCriteria;\n            if (removalCriteria != null) {\n              for (let removalCriterion of removalCriteria) {\n                if (removalCriterion != null) {\n                  if (removalCriterion.name === 'branchPathTaken') {\n                    const params = removalCriterion.params;\n                    if (params != null) {\n                      if (params.fromNodeId === currentFromNodeId &&\n                        params.toNodeId === currentToNodeId) {\n                        /*\n                         * we have found a branchPathTaken removal criterion\n                         * with the fromNodeId and toNodeId that we are\n                         * looking for so we will now update the values\n                         */\n                        params.fromNodeId = newFromNodeId;\n                        params.toNodeId = newToNodeId;\n                      }\n                    }\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Get the project level rubric\n   * @return the project level rubric\n   */\n  getProjectRubric() {\n    return this.project.rubric;\n  }\n\n  /**\n   * Check if a node is a branch point\n   * @param nodeId the node id\n   * @return whether the node is a branch point\n   */\n  isBranchPoint(nodeId) {\n    const transitions = this.getTransitionsByFromNodeId(nodeId);\n    if (transitions != null) {\n      if (transitions.length > 1) {\n        /*\n         * the node contains more than one transition which means it is\n         * a branch point\n         */\n        return true;\n      }\n    }\n    return false;\n  }\n\n\n  /**\n   * Check if a node is the first node in a branch path\n   * @param nodeId the node id\n   * @return whether the node is the first node in a branch path\n   */\n  isFirstNodeInBranchPath(nodeId) {\n    const nodes = this.getNodes();\n    if (nodes != null) {\n      for (let node of nodes) {\n        if (node != null &&\n            node.transitionLogic != null &&\n            node.transitionLogic.transitions != null) {\n          const transitions = node.transitionLogic.transitions;\n\n          if (transitions.length > 1) {\n            /*\n             * there is more than one transition from this node\n             * which means it is a branch point\n             */\n            for (let transition of transitions) {\n              if (transition != null) {\n                const transitionTo = transition.to;\n                if (transitionTo === nodeId) {\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n\n  /**\n   * Check if the node is in any branch path\n   * @param nodeId the node id of the node\n   * @return whether the node is in any branch path\n   */\n  isNodeInAnyBranchPath(nodeId) {\n    let result = false;\n    if (this.nodeIdToIsInBranchPath[nodeId] == null) {\n      /*\n       * we have not calculated whether the node id is in a branch path\n       * before so we will now\n       */\n\n      const branches = this.getBranches();\n      result = this.isNodeIdInABranch(branches, nodeId);\n\n      // remember the result for this node id\n      this.nodeIdToIsInBranchPath[nodeId] = result;\n    } else {\n      /*\n       * we have calculated whether the node id is in a branch path\n       * before\n       */\n      result = this.nodeIdToIsInBranchPath[nodeId];\n    }\n    return result;\n  }\n\n  /**\n   * Check if a node is a branch start point\n   * @param nodeId look for a branch with this start node id\n   * @return whether the node is a branch start point\n   */\n  isBranchStartPoint(nodeId) {\n    /*\n     * Get all the branches. Each branch is represented as an object that\n     * contains the branchStartPoint, branchEndPoint, and branchPaths.\n     */\n    const branches = this.getBranches();\n\n    if (branches != null) {\n      for (let branch of branches) {\n        if (branch != null) {\n          if (branch.branchStartPoint == nodeId) {\n            /*\n             * we have found a branch with the given nodeId as the\n             * start point\n             */\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if a node is a branch end point\n   * @param nodeId look for a branch with this end node id\n   * @return whether the node is a branch end point\n   */\n  isBranchMergePoint(nodeId) {\n    /*\n     * Get all the branches. Each branch is represented as an object that\n     * contains the branchStartPoint, branchEndPoint, and branchPaths.\n     */\n    const branches = this.getBranches();\n\n    if (branches != null) {\n      for (let branch of branches) {\n        if (branch != null) {\n          if (branch.branchEndPoint == nodeId) {\n            /*\n             * we have found a branch with the given nodeId as the\n             * end point\n             */\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get all the branches whose branch start point is the given node id\n   * @param nodeId the branch start point\n   * @return an array of branches that have the given branch start point\n   */\n  getBranchesByBranchStartPointNodeId(nodeId) {\n    const branches = [];\n    const allBranches = this.getBranches();\n\n    if (allBranches != null) {\n      for (let branch of allBranches) {\n        if (branch != null) {\n          if (nodeId == branch.branchStartPoint) {\n            /*\n             * the branch start point matches the node id we are\n             * looking for\n             */\n            branches.push(branch);\n          }\n        }\n      }\n    }\n    return branches;\n  }\n\n  /**\n   * Calculate the node numbers and set them into the nodeIdToNumber map\n   */\n  calculateNodeNumbers() {\n    this.nodeIdToNumber = {};\n    this.nodeIdToBranchPathLetter = {};\n    const startNodeId = this.getStartNodeId();\n\n    const currentActivityNumber = 0;\n    const currentStepNumber = 0;\n\n    // recursively calculate the node numbers by traversing the project tree\n    this.calculateNodeNumbersHelper(\n        startNodeId, currentActivityNumber, currentStepNumber);\n  }\n\n  /**\n   * Recursively calcualte the node numbers by traversing the project tree\n   * using transitions\n   * @param nodeId the current node id we are on\n   * @param currentActivityNumber the current activity number\n   * @param currentStepNumber the current step number\n   * @param branchLetterCode (optional) the character code for the branch\n   * letter e.g. 1=A, 2=B, etc.\n   */\n  calculateNodeNumbersHelper(nodeId, currentActivityNumber, currentStepNumber, branchLetterCode) {\n    if (nodeId != null) {\n      if (this.isApplicationNode(nodeId)) {\n        const node = this.getNodeById(nodeId);\n        if (node != null) {\n          const parentGroup = this.getParentGroup(nodeId);\n          if (parentGroup != null) {\n            if (this.nodeIdToNumber[parentGroup.id] == null) {\n              /*\n               * the parent group has not been assigned a number so\n               * we will assign a number now\n               */\n\n              currentActivityNumber = parseInt(currentActivityNumber) + 1;\n\n              /*\n               * set the current step number to 1 now that we have\n               * entered a new group\n               */\n              currentStepNumber = 1;\n\n              this.nodeIdToNumber[parentGroup.id] = \"\" + currentActivityNumber;\n            } else {\n              /*\n               * the parent group has previously been assigned a number so we\n               * will use it\n               */\n              currentActivityNumber = this.nodeIdToNumber[parentGroup.id];\n            }\n          }\n\n          if (this.isBranchMergePoint(nodeId)) {\n            /*\n             * the node is a merge point so we will not use a letter\n             * anymore now that we are no longer in a branch path\n             */\n            branchLetterCode = null;\n          }\n\n          if (this.isBranchStartPoint(nodeId)) {\n            const branchesByBranchStartPointNodeId =\n                this.getBranchesByBranchStartPointNodeId(nodeId);\n            const branchesObject = branchesByBranchStartPointNodeId[0];\n\n            /*\n             * been used in the branch paths so that we know what\n             * step number to give the merge end point\n             * this is used to obtain the max step number that has\n             */\n            let maxCurrentStepNumber = 0;\n\n            // set the step number for the branch start point\n            this.nodeIdToNumber[nodeId] = currentActivityNumber + '.' + currentStepNumber;\n\n            currentStepNumber++;\n            const branchPaths = branchesObject.branchPaths;\n\n            for (let bp = 0; bp < branchPaths.length; bp++) {\n              const branchPath = branchPaths[bp];\n              let branchCurrentStepNumber = currentStepNumber;\n\n              // get the letter code e.g. 1=A, 2=B, etc.\n              const branchLetterCode = bp;\n\n              for (let bpn = 0; bpn < branchPath.length; bpn++) {\n                if (bpn == 0) {\n                  /*\n                   * Recursively call calculateNodeNumbersHelper on the\n                   * first step in this branch path. This will recursively\n                   * calculate the numbers for all the nodes in this\n                   * branch path.\n                   */\n                  const branchPathNodeId = branchPath[bpn];\n                  this.calculateNodeNumbersHelper(branchPathNodeId, currentActivityNumber, branchCurrentStepNumber, branchLetterCode);\n                }\n\n                branchCurrentStepNumber++;\n\n                /*\n                 * update the max current step number if we have found\n                 * a larger number\n                 */\n                if (branchCurrentStepNumber > maxCurrentStepNumber) {\n                  maxCurrentStepNumber = branchCurrentStepNumber;\n                }\n              }\n            }\n\n            // get the step number we should use for the end point\n            currentStepNumber = maxCurrentStepNumber;\n\n            const branchEndPointNodeId = branchesObject.branchEndPoint;\n\n            /*\n             * calculate the node number for the branch end point and\n             * continue calculating node numbers for the nodes that\n             * come after it\n             */\n            this.calculateNodeNumbersHelper(branchEndPointNodeId, currentActivityNumber, currentStepNumber);\n          } else {\n            // the node is not a branch start point\n\n            /*\n             * check if we have already set the number for this node so\n             * that we don't need to unnecessarily re-calculate the\n             * node number\n             */\n            if (this.nodeIdToNumber[nodeId] == null) {\n              // we have not calculated the node number yet\n\n              let number = null;\n\n              if (branchLetterCode == null) {\n                // we do not need to add a branch letter\n\n                // get the node number e.g. 1.5\n                number = currentActivityNumber + '.' + currentStepNumber;\n              } else {\n                // we need to add a branch letter\n\n                // get the branch letter\n                const branchLetter = String.fromCharCode(65 + branchLetterCode);\n\n                // get the node number e.g. 1.5 A\n                number = currentActivityNumber + '.' + currentStepNumber + ' ' + branchLetter;\n\n                // remember the branch path letter for this node\n                this.nodeIdToBranchPathLetter[nodeId] = branchLetter;\n              }\n\n              // set the number for the node\n              this.nodeIdToNumber[nodeId] = number;\n            } else {\n              /*\n               * We have calculated the node number before so we\n               * will return. This will prevent infinite looping\n               * within the project.\n               */\n              return;\n            }\n\n            // increment the step number for the next node to use\n            currentStepNumber++;\n\n            let transitions = [];\n\n            if (node.transitionLogic != null && node.transitionLogic.transitions) {\n              transitions = node.transitionLogic.transitions;\n            }\n\n            if (transitions.length > 0) {\n              /*\n               * loop through all the transitions, there should only\n               * be one but we will loop through them just to be complete.\n               * if there was more than one transition, it would mean\n               * this node is a branch start point in which case we\n               * would have gone inside the other block of code where\n               * this.isBranchStartPoint() is true.\n               */\n              for (let transition of transitions) {\n                if (transition != null) {\n                  if (this.isBranchMergePoint(transition.to)) {\n\n                  } else {\n                    this.calculateNodeNumbersHelper(transition.to, currentActivityNumber, currentStepNumber, branchLetterCode);\n                  }\n                }\n              }\n            } else {\n              // if there are no transitions, check if the parent group has a transition\n\n              if (parentGroup != null &&\n                  parentGroup.transitionLogic != null &&\n                  parentGroup.transitionLogic.transitions != null &&\n                  parentGroup.transitionLogic.transitions.length > 0) {\n                for (let transition of parentGroup.transitionLogic.transitions) {\n                  if (transition != null) {\n                    this.calculateNodeNumbersHelper(transition.to, currentActivityNumber, currentStepNumber, branchLetterCode);\n                  }\n                }\n              }\n            }\n          }\n        }\n      } else {\n        // the node is a group node\n\n        const node = this.getNodeById(nodeId);\n        if (node != null) {\n          // check if the group has previously been assigned a number\n          if (this.nodeIdToNumber[nodeId] == null) {\n            /*\n             * the group has not been assigned a number so\n             * we will assign a number now\n             */\n            if (nodeId == 'group0') {\n              // group 0 will always be given the activity number of 0\n              this.nodeIdToNumber[nodeId] = \"\" + 0;\n            } else {\n              // set the activity number\n              currentActivityNumber = parseInt(currentActivityNumber) + 1;\n\n              /*\n               * set the current step number to 1 now that we have\n               * entered a new group\n               */\n              currentStepNumber = 1;\n\n              // set the activity number\n              this.nodeIdToNumber[nodeId] = \"\" + currentActivityNumber;\n            }\n          } else {\n            /*\n             * We have calculated the node number before so we\n             * will return. This will prevent infinite looping\n             * within the project.\n             */\n            return;\n          }\n\n          if (node.startId != null && node.startId != '') {\n            /*\n             * calculate the node number for the first step in this\n             * activity and any steps after it\n             */\n            this.calculateNodeNumbersHelper(node.startId, currentActivityNumber, currentStepNumber, branchLetterCode);\n          } else {\n            /*\n             * this activity doesn't have a start step so we will\n             * look for a transition\n             */\n\n            if (node != null &&\n                node.transitionLogic != null &&\n                node.transitionLogic.transitions != null &&\n                node.transitionLogic.transitions.length > 0) {\n              for (let transition of node.transitionLogic.transitions) {\n                if (transition != null) {\n                  /*\n                   * calculate the node number for the next group\n                   * and all its children steps\n                   */\n                  this.calculateNodeNumbersHelper(\n                      transition.to, currentActivityNumber, currentStepNumber,\n                      branchLetterCode);\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n\n  /**\n   * Get script for this project\n   */\n  getProjectScript() {\n    return this.project.script;\n  }\n\n  /**\n   * Get the next node\n   * @param nodeId get the node id that comes after this one\n   * @return the node id that comes after\n   */\n  getNextNodeId(nodeId) {\n    const flattenedNodeIds = this.getFlattenedProjectAsNodeIds();\n    if (flattenedNodeIds != null) {\n      const indexOfNodeId = flattenedNodeIds.indexOf(nodeId);\n      if (indexOfNodeId != -1) {\n        const indexOfNextNodeId = indexOfNodeId + 1;\n        return flattenedNodeIds[indexOfNextNodeId];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get all the achievements object in the project. The achievements object\n   * contains the isEnabled field and an array of items.\n   * @return the achievement object\n   */\n  getAchievements() {\n    if (this.project != null) {\n      if (this.project.achievements == null) {\n        this.project.achievements = {\n          isEnabled: true,\n          items: []\n        };\n      }\n      return this.project.achievements;\n    }\n    return null;\n  }\n\n  /**\n   * Get the achievement items in the project\n   * @return the achievement items\n   */\n  getAchievementItems() {\n    const achievements = this.getAchievements();\n    if (achievements != null) {\n      if (achievements.items == null) {\n        achievements.items = [];\n      }\n      return achievements.items;\n    }\n    return null;\n  }\n\n  /**\n   * Get an achievement by the 10 character alphanumeric achievement id\n   * @param achievementId the 10 character alphanumeric achievement id\n   * @return the achievement with the given achievement id\n   */\n  getAchievementByAchievementId(achievementId) {\n    if (achievementId != null) {\n      const achievements = this.getAchievements();\n      if (achievements != null) {\n        const achievementItems = achievements.items;\n        if (achievementItems != null) {\n          for (let achievement of achievementItems) {\n            if (achievement != null && achievement.id == achievementId) {\n              return achievement;\n            }\n          }\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the total number of rubrics (step + components) for the given nodeId\n   * @param nodeId the node id\n   * @return Number of rubrics for the node\n   */\n  getNumberOfRubricsByNodeId(nodeId) {\n    let n = 0;\n    let nodeContent = this.getNodeContentByNodeId(nodeId);\n    if (nodeContent) {\n      let nodeRubric = nodeContent.rubric;\n      if (nodeRubric != null && nodeRubric != '') {\n        n++;\n      }\n\n      let components = nodeContent.components;\n      if (components && components.length) {\n        for (let component of components) {\n          if (component) {\n            const componentRubric = component.rubric;\n            if (componentRubric != null && componentRubric != '') {\n              n++;\n            }\n          }\n        }\n      }\n    }\n    return n;\n  }\n\n  /**\n   * Remember the result for whether the node is affected by the constraint\n   * @param nodeId the node id\n   * @param constraintId the constraint id\n   * @param whether the node is affected by the constraint\n   */\n  setIsNodeAffectedByConstraintResult(nodeId, constraintId, result) {\n    this.isNodeAffectedByConstraintResult[nodeId + '-' + constraintId] = result;\n  }\n\n  /**\n   * Check if we have calculated the result for whether the node is affected\n   * by the constraint\n   * @param nodeId the node id\n   * @param constraintId the constraint id\n   * @return Return the result if we have calculated the result before. If we\n   * have not calculated the result before, we will return null.\n   */\n  getIsNodeAffectedByConstraintResult(nodeId, constraintId) {\n    return this.isNodeAffectedByConstraintResult[nodeId + '-' + constraintId];\n  }\n\n  /**\n   * Get the id to node mappings.\n   * @return An object the keys as node ids and the values as nodes.\n   */\n  getIdToNode() {\n    return this.idToNode;\n  }\n\n  /**\n   * Check if a node has rubrics.\n   * @param nodeId The node id of the node.\n   * @return Whether the node has rubrics authored on it.\n   */\n  nodeHasRubric(nodeId) {\n    let numberOfRubrics = this.getNumberOfRubricsByNodeId(nodeId);\n    if (numberOfRubrics > 0) {\n      return true;\n    }\n    return false;\n  }\n\n  getSpaces() {\n    if (this.project.spaces != null) {\n      return this.project.spaces;\n    } else {\n      return [];\n    }\n  }\n\n  addSpace(space) {\n    if (this.project.spaces == null) {\n      this.project.spaces = [];\n    }\n    if (!this.isSpaceExists(space.id)) {\n      this.project.spaces.push(space);\n      this.saveProject();\n    }\n  }\n\n  isSpaceExists(id) {\n    const spaces = this.getSpaces();\n    for (let space of spaces) {\n      if (space.id === id) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  removeSpace(id) {\n    let spaces = this.getSpaces();\n    for (let s = 0; s < spaces.length; s++) {\n      if (spaces[s].id == id) {\n        spaces.splice(s, 1);\n        this.saveProject();\n        return;\n      }\n    }\n  }\n}\n\nProjectService.$inject = [\n  '$filter',\n  '$http',\n  '$injector',\n  '$q',\n  '$rootScope',\n  'ConfigService',\n  'UtilService'\n];\n\nexport default ProjectService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/services/studentDataService.es6 b/src/main/webapp/wise5/services/studentDataService.es6
index 6e60cf805e..5ff188685d 100644
--- a/src/main/webapp/wise5/services/studentDataService.es6
+++ b/src/main/webapp/wise5/services/studentDataService.es6
@@ -7,6 +7,7 @@ class StudentDataService {
       $rootScope,
       AnnotationService,
       ConfigService,
+      PlanningService,
       ProjectService,
       UtilService) {
     this.$filter = $filter;
@@ -16,6 +17,7 @@ class StudentDataService {
     this.$rootScope = $rootScope;
     this.AnnotationService = AnnotationService;
     this.ConfigService = ConfigService;
+    this.PlanningService = PlanningService;
     this.ProjectService = ProjectService;
     this.UtilService = UtilService;
     this.$translate = this.$filter('translate');
@@ -251,7 +253,7 @@ class StudentDataService {
 
   updateNodeStatuses() {
     let nodes = this.ProjectService.getNodes();
-    let planningNodes = this.ProjectService.getPlanningNodes();
+    let planningNodes = this.PlanningService.getPlanningNodes();
     const groups = this.ProjectService.getGroups();
 
     if (nodes != null) {
@@ -2171,7 +2173,7 @@ class StudentDataService {
       for (let nodeState of nodeStates) {
         if (nodeState != null) {
           let nodeStateNodeId = nodeState.nodeId;
-          if (this.ProjectService.isPlanning(nodeStateNodeId) && nodeState.studentData != null) {
+          if (this.PlanningService.isPlanning(nodeStateNodeId) && nodeState.studentData != null) {
             let nodes = nodeState.studentData.nodes;
             for (let node of nodes) {
               let nodeId = node.id;
@@ -2518,6 +2520,7 @@ StudentDataService.$inject = [
   '$rootScope',
   'AnnotationService',
   'ConfigService',
+  'PlanningService',
   'ProjectService',
   'UtilService'
 ];
diff --git a/src/main/webapp/wise5/services/studentDataService.js b/src/main/webapp/wise5/services/studentDataService.js
index 333144e8db..bbb4d760c9 100644
--- a/src/main/webapp/wise5/services/studentDataService.js
+++ b/src/main/webapp/wise5/services/studentDataService.js
@@ -9,7 +9,7 @@ var _createClass = function () { function defineProperties(target, props) { for
 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
 var StudentDataService = function () {
-  function StudentDataService($filter, $http, $injector, $q, $rootScope, AnnotationService, ConfigService, ProjectService, UtilService) {
+  function StudentDataService($filter, $http, $injector, $q, $rootScope, AnnotationService, ConfigService, PlanningService, ProjectService, UtilService) {
     var _this = this;
 
     _classCallCheck(this, StudentDataService);
@@ -21,6 +21,7 @@ var StudentDataService = function () {
     this.$rootScope = $rootScope;
     this.AnnotationService = AnnotationService;
     this.ConfigService = ConfigService;
+    this.PlanningService = PlanningService;
     this.ProjectService = ProjectService;
     this.UtilService = UtilService;
     this.$translate = this.$filter('translate');
@@ -378,7 +379,7 @@ var StudentDataService = function () {
     key: 'updateNodeStatuses',
     value: function updateNodeStatuses() {
       var nodes = this.ProjectService.getNodes();
-      var planningNodes = this.ProjectService.getPlanningNodes();
+      var planningNodes = this.PlanningService.getPlanningNodes();
       var groups = this.ProjectService.getGroups();
 
       if (nodes != null) {
@@ -3157,7 +3158,7 @@ var StudentDataService = function () {
 
             if (nodeState != null) {
               var nodeStateNodeId = nodeState.nodeId;
-              if (this.ProjectService.isPlanning(nodeStateNodeId) && nodeState.studentData != null) {
+              if (this.PlanningService.isPlanning(nodeStateNodeId) && nodeState.studentData != null) {
                 var nodes = nodeState.studentData.nodes;
                 var _iteratorNormalCompletion41 = true;
                 var _didIteratorError41 = false;
@@ -3658,7 +3659,7 @@ var StudentDataService = function () {
   return StudentDataService;
 }();
 
-StudentDataService.$inject = ['$filter', '$http', '$injector', '$q', '$rootScope', 'AnnotationService', 'ConfigService', 'ProjectService', 'UtilService'];
+StudentDataService.$inject = ['$filter', '$http', '$injector', '$q', '$rootScope', 'AnnotationService', 'ConfigService', 'PlanningService', 'ProjectService', 'UtilService'];
 
 exports.default = StudentDataService;
 //# sourceMappingURL=studentDataService.js.map
diff --git a/src/main/webapp/wise5/services/studentDataService.js.map b/src/main/webapp/wise5/services/studentDataService.js.map
index 8a9f6d10bc..3c1dc5eb28 100644
--- a/src/main/webapp/wise5/services/studentDataService.js.map
+++ b/src/main/webapp/wise5/services/studentDataService.js.map
@@ -1 +1 @@
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StudentDataService {\n  constructor(\n      $filter,\n      $http,\n      $injector,\n      $q,\n      $rootScope,\n      AnnotationService,\n      ConfigService,\n      ProjectService,\n      UtilService) {\n    this.$filter = $filter;\n    this.$http = $http;\n    this.$injector = $injector;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.ProjectService = ProjectService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n    this.currentNode = null;\n    this.previousStep = null;\n    this.studentData = null;\n    this.stackHistory = [];  // array of node id's\n    this.visitedNodesHistory = [];\n    this.nodeStatuses = {};\n    this.runStatus = null;\n    this.maxScore = null;\n\n    this.maxPlanningNodeNumber = 0;\n\n    /*\n     * A counter to keep track of how many saveToServer requests we have\n     * made that we haven't received a response for yet. When this value\n     * goes back down to 0, we will send update the student status and then\n     * save it to the server.\n     */\n    this.saveToServerRequestCount = 0;\n\n    /*\n     * A dummy student work id that is used in preview mode when we simulate\n     * saving of student data.\n     */\n    this.dummyStudentWorkId = 1;\n\n    // listen for node status changes\n    this.$rootScope.$on('nodeStatusesChanged', (event, args) => {\n      // calculate active global annotations and group them by group name as needed\n      this.AnnotationService.calculateActiveGlobalAnnotationGroups();\n\n      // go through the global annotations and see if they can be un-globalized by checking if their criterias have been met.\n      let globalAnnotationGroups = this.AnnotationService.getActiveGlobalAnnotationGroups();\n      globalAnnotationGroups.map((globalAnnotationGroup) => {\n        let globalAnnotations = globalAnnotationGroup.annotations;\n        globalAnnotations.map((globalAnnotation) => {\n          if (globalAnnotation.data != null && globalAnnotation.data.isGlobal) {\n            let unGlobalizeConditional = globalAnnotation.data.unGlobalizeConditional;\n            let unGlobalizeCriteriaArray = globalAnnotation.data.unGlobalizeCriteria;\n            if (unGlobalizeCriteriaArray != null) {\n              if (unGlobalizeConditional === \"any\") {\n                // at least one criteria in unGlobalizeCriteriaArray must be satisfied in any order before un-globalizing this annotation\n                let anySatified = false;\n                for (let unGlobalizeCriteria of unGlobalizeCriteriaArray) {\n                  let unGlobalizeCriteriaResult = this.evaluateCriteria(unGlobalizeCriteria);\n                  anySatified = anySatified || unGlobalizeCriteriaResult;\n                }\n                if (anySatified) {\n                  globalAnnotation.data.unGlobalizedTimestamp = Date.parse(new Date());  // save when criteria was satisfied\n                  this.saveAnnotations([globalAnnotation]);  // save changes to server\n                }\n              } else if (unGlobalizeConditional === \"all\") {\n                // all criteria in unGlobalizeCriteriaArray must be satisfied in any order before un-globalizing this annotation\n                let allSatisfied = true;\n                for (let unGlobalizeCriteria of unGlobalizeCriteriaArray) {\n                  let unGlobalizeCriteriaResult = this.evaluateCriteria(unGlobalizeCriteria);\n                  allSatisfied = allSatisfied && unGlobalizeCriteriaResult;\n                }\n                if (allSatisfied) {\n                  globalAnnotation.data.unGlobalizedTimestamp = Date.parse(new Date());  // save when criteria was satisfied\n                  this.saveAnnotations([globalAnnotation]);  // save changes to server\n                }\n              }\n            }\n          }\n        });\n      })\n    });\n\n    /**\n     * Listen for the 'newAnnotationReceived' event which is fired when\n     * student receives a new annotation from the server\n     */\n    this.$rootScope.$on('newAnnotationReceived', (event, args) => {\n      if (args) {\n        // get the annotation that was saved to the server\n        let annotation = args.annotation;\n        this.handleAnnotationReceived(annotation);\n      }\n    });\n  }\n\n  retrieveStudentData() {\n    if (this.ConfigService.isPreview()) {\n      // initialize dummy student data\n      this.studentData = {};\n      this.studentData.componentStates = [];\n      this.studentData.nodeStates = [];\n      this.studentData.events = [];\n      this.studentData.annotations = [];\n      this.studentData.userName = this.$translate('PREVIEW_STUDENT');\n      this.studentData.userId = '0';\n\n      // set the annotations into the annotation service\n      this.AnnotationService.setAnnotations(this.studentData.annotations);\n\n      // populate the student history\n      this.populateHistories(this.studentData.events);\n\n      // update the node statuses\n      this.updateNodeStatuses();\n    } else {\n      const studentDataURL = this.ConfigService.getConfigParam('studentDataURL');\n\n      const httpParams = {};\n      httpParams.method = 'GET';\n      httpParams.url = studentDataURL;\n\n      const params = {};\n      params.workgroupId = this.ConfigService.getWorkgroupId();\n      params.runId = this.ConfigService.getRunId();\n      params.getStudentWork = true;\n      params.getEvents = true;\n      params.getAnnotations = true;\n      params.toWorkgroupId = this.ConfigService.getWorkgroupId();\n      httpParams.params = params;\n\n      // make the request for the student data\n      return this.$http(httpParams).then((result) => {\n        const resultData = result.data;\n        if (resultData != null) {\n          this.studentData = {};\n\n          // get student work\n          this.studentData.componentStates = [];\n          this.studentData.nodeStates = [];\n          const studentWorkList = resultData.studentWorkList;\n          for (let studentWork of studentWorkList) {\n            if (studentWork.componentId != null) {\n              this.studentData.componentStates.push(studentWork);\n            } else {\n              this.studentData.nodeStates.push(studentWork);\n            }\n          }\n\n          // Check to see if this Project contains any Planning activities\n          if (this.ProjectService.project.nodes != null && this.ProjectService.project.nodes.length > 0) {\n            // Overload/add new nodes based on student's work in the NodeState for the planning group.\n            for (let planningGroupNode of this.ProjectService.project.nodes) {\n              if (planningGroupNode.planning) {\n                let lastestNodeStateForPlanningGroupNode = this.getLatestNodeStateByNodeId(planningGroupNode.id);\n                if (lastestNodeStateForPlanningGroupNode != null) {\n                  let studentModifiedNodes = lastestNodeStateForPlanningGroupNode.studentData.nodes;\n                  if (studentModifiedNodes != null) {\n                    for (let studentModifiedNode of studentModifiedNodes) {\n                      let studentModifiedNodeId = studentModifiedNode.id;\n                      if (studentModifiedNode.planning) {\n                        // If this is a Planning Node that exists in the project, replace the one in the original project with this one.\n                        for (let n = 0; n < this.ProjectService.project.nodes.length; n++) {\n                          if (this.ProjectService.project.nodes[n].id === studentModifiedNodeId) {\n                            // Only overload the ids. This will allow authors to add more planningNodes during the run if needed.\n                            this.ProjectService.project.nodes[n].ids = studentModifiedNode.ids;\n                          }\n                        }\n                      } else {\n                        // Otherwise, this is an instance of a PlanningNode template, so just append it to the end of the Project.nodes\n                        this.ProjectService.project.nodes.push(studentModifiedNode);\n                      }\n                    }\n                  }\n                }\n              }\n            }\n            // Re-parse the project with the modified changes\n            this.ProjectService.parseProject();\n          }\n\n          this.studentData.events = resultData.events;\n          this.studentData.annotations = resultData.annotations;\n          this.AnnotationService.setAnnotations(this.studentData.annotations);\n          this.populateHistories(this.studentData.events);\n          this.updateNodeStatuses();\n        }\n\n        return this.studentData;\n      });\n    }\n  };\n\n  /**\n   * Retrieve the run status\n   */\n  retrieveRunStatus() {\n    if (this.ConfigService.isPreview()) {\n      this.runStatus = {};\n    } else {\n      const runStatusURL = this.ConfigService.getConfigParam('runStatusURL');\n      const runId = this.ConfigService.getConfigParam('runId');\n\n      const params = {\n        runId:runId\n      };\n\n      const httpParams = {};\n      httpParams.method = 'GET';\n      httpParams.headers = {'Content-Type': 'application/x-www-form-urlencoded'};\n      httpParams.url = runStatusURL;\n      httpParams.params = params;\n\n      return this.$http(httpParams).then((result) => {\n        if (result != null) {\n          const data = result.data;\n          if (data != null) {\n            this.runStatus = data;\n          }\n        }\n      });\n    }\n  }\n\n  getNodeStatuses() {\n    return this.nodeStatuses;\n  };\n\n  setNodeStatusByNodeId(nodeId, nodeStatus) {\n    if (nodeId != null && nodeStatus != null) {\n      const nodeStatuses = this.nodeStatuses;\n      if (nodeStatuses != null) {\n        nodeStatuses[nodeId] = nodeStatus;\n      }\n    }\n  }\n\n  getNodeStatusByNodeId(nodeId) {\n    const nodeStatuses = this.nodeStatuses;\n    if (nodeId != null && nodeStatuses != null) {\n      return nodeStatuses[nodeId];\n    }\n    return null;\n  };\n\n  updateNodeStatuses() {\n    let nodes = this.ProjectService.getNodes();\n    let planningNodes = this.ProjectService.getPlanningNodes();\n    const groups = this.ProjectService.getGroups();\n\n    if (nodes != null) {\n      if (planningNodes != null) {\n        nodes = nodes.concat(planningNodes);\n      }\n      for (let node of nodes) {\n        if (!this.ProjectService.isGroupNode(node.id)) {\n          this.updateNodeStatusByNode(node);\n        }\n      }\n    }\n\n    let group;\n    if (groups != null) {\n      for (let group of groups) {\n        group.depth = this.ProjectService.getNodeDepth(group.id);\n      }\n\n      // sort by descending depth order (need to calculate completion for lowest level groups first)\n      groups.sort(function(a, b) {\n        return b.depth - a.depth;\n      });\n\n      for (let group of groups) {\n        this.updateNodeStatusByNode(group);\n      }\n    }\n\n    // update max score\n    this.maxScore = this.getMaxScore();\n    this.$rootScope.$broadcast('nodeStatusesChanged');\n  };\n\n  /**\n   * Update the node status for a node\n   * @param node the node to update\n   */\n  updateNodeStatusByNode(node) {\n    if (node != null) {\n      const nodeId = node.id;\n      const tempNodeStatus = {};\n      tempNodeStatus.nodeId = nodeId;\n      tempNodeStatus.isVisitable = true;\n      tempNodeStatus.isCompleted = true;\n\n      // get the constraints that affect this node\n      let constraintsForNode = this.ProjectService.getConstraintsForNode(node);\n\n      if (this.ConfigService.getConfigParam('constraints') == false) {\n        /*\n         * constraints have been disabled, most likely because we are\n         * in preview without constraints mode\n         */\n        constraintsForNode = null;\n      }\n\n      if (constraintsForNode == null || constraintsForNode.length == 0) {\n        if (this.ProjectService.getFlattenedProjectAsNodeIds().indexOf(nodeId) == -1 &&\n          !this.ProjectService.isGroupNode(nodeId)) {\n          // there are no transitions to this node so it is not visible\n          tempNodeStatus.isVisible = false;\n          tempNodeStatus.isVisitable = true;\n        } else {\n          // this node does not have any constraints so it is clickable\n          tempNodeStatus.isVisible = true;\n          tempNodeStatus.isVisitable = true;\n        }\n      } else {\n        const isVisibleResults = [];\n        const isVisitableResults = [];\n\n        let result = false;\n        const firstResult = true;\n\n        for (let constraintForNode of constraintsForNode) {\n          if (constraintForNode != null) {\n            // evaluate the constraint to see if the node can be visited\n            const tempResult = this.evaluateConstraint(node, constraintForNode);\n\n            const action = constraintForNode.action;\n\n            if (action != null) {\n              if (action === 'makeThisNodeNotVisible') {\n                isVisibleResults.push(tempResult);\n              } else if (action === 'makeThisNodeNotVisitable') {\n                isVisitableResults.push(tempResult);\n              } else if (action === 'makeAllNodesAfterThisNotVisible') {\n                isVisibleResults.push(tempResult);\n              } else if (action === 'makeAllNodesAfterThisNotVisitable') {\n                isVisitableResults.push(tempResult);\n              } else if (action === 'makeAllOtherNodesNotVisible') {\n                isVisibleResults.push(tempResult);\n              } else if (action === 'makeAllOtherNodesNotVisitable') {\n                isVisitableResults.push(tempResult);\n              }\n            }\n          }\n        }\n\n        let isVisible = true;\n        let isVisitable = true;\n\n        for (let isVisibleResult of isVisibleResults) {\n          isVisible = isVisible && isVisibleResult;\n        }\n\n        for (let isVisitableResult of isVisitableResults) {\n          isVisitable = isVisitable && isVisitableResult;\n        }\n\n        tempNodeStatus.isVisible = isVisible;\n        tempNodeStatus.isVisitable = isVisitable;\n      }\n\n      tempNodeStatus.isCompleted = this.isCompleted(nodeId);\n      tempNodeStatus.isVisited = this.isNodeVisited(nodeId);\n\n      const nodeStatus = this.getNodeStatusByNodeId(nodeId);\n\n      if (nodeStatus == null) {\n        this.setNodeStatusByNodeId(nodeId, tempNodeStatus);\n      } else {\n        /*\n         * get the previous isCompleted value so that we can later check\n         * if it has changed\n         */\n        const previousIsCompletedValue = this.nodeStatuses[nodeId].isCompleted;\n\n        this.nodeStatuses[nodeId].isVisited = tempNodeStatus.isVisited;\n        this.nodeStatuses[nodeId].isVisible = tempNodeStatus.isVisible;\n        this.nodeStatuses[nodeId].isVisitable = tempNodeStatus.isVisitable;\n        this.nodeStatuses[nodeId].isCompleted = tempNodeStatus.isCompleted;\n\n        if (previousIsCompletedValue == false && tempNodeStatus.isCompleted) {\n          /*\n           * the node status just changed from false to true so we\n           * will fire an event\n           */\n          this.$rootScope.$broadcast('nodeCompleted', { nodeId: nodeId });\n        }\n      }\n\n      this.nodeStatuses[nodeId].progress = this.getNodeProgressById(nodeId);\n      this.nodeStatuses[nodeId].icon = this.ProjectService.getNodeIconByNodeId(nodeId);\n\n      // get the latest component state for the node\n      const latestComponentStatesForNode = this.getLatestComponentStateByNodeId(nodeId);\n      if (latestComponentStatesForNode != null) {\n        // set the latest component state timestamp into the node status\n        this.nodeStatuses[nodeId].latestComponentStateClientSaveTime = latestComponentStatesForNode.clientSaveTime;\n        this.nodeStatuses[nodeId].latestComponentStateServerSaveTime = latestComponentStatesForNode.serverSaveTime;\n      }\n    }\n  };\n\n  /**\n   * Evaluate the constraint\n   * @param node the node\n   * @param constraintForNode the constraint object\n   * @returns whether the node has satisfied the constraint\n   */\n  evaluateConstraint(node, constraintForNode) {\n    if (constraintForNode != null) {\n      const removalCriteria = constraintForNode.removalCriteria;\n      if (removalCriteria != null) {\n        return this.evaluateNodeConstraint(node, constraintForNode);\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Evaluate the guided navigation constraint\n   * @param node the node\n   * @param constraintForNode the constraint object\n   * @returns whether the node can be visited or not\n   */\n  evaluateGuidedNavigationConstraint(node, constraintForNode) {\n    let result = false;\n    if (node != null) {\n      const nodeId = node.id;\n\n      if (this.isNodeVisited(nodeId)) {\n        // the node has been visited before so it should be clickable\n        result = true;\n      } else {\n        // get all the nodes that have been visited\n        const visitedNodes = this.getVisitedNodesHistory();\n\n        let transitionsToNodeId = [];\n\n        for (let visitedNodeId of visitedNodes) {\n          // get the transitions from the visited node to the node status node\n          const transitions = this.ProjectService.getTransitionsByFromAndToNodeId(visitedNodeId, nodeId);\n\n          // TODO: check if the transition can be used by the student\n\n          // concat the node ids\n          transitionsToNodeId = transitionsToNodeId.concat(transitions);\n        }\n\n        if (transitionsToNodeId != null && transitionsToNodeId.length > 0) {\n          // there is a transition between the current node and the node status node\n\n          /*\n           * there are transitions from the current node to the node status node so\n           * the node status node is clickable\n           */\n          result = true;\n        } else {\n          /*\n           * there is no transition between the visited nodes and the node status node\n           * so we will set the node to be not clickable\n           */\n          result = false;\n        }\n\n        if (this.ProjectService.isStartNode(node)) {\n          /*\n           * the node is the start node of the project or a start node of a group\n           * so we will make it clickable\n           */\n          result = true;\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Evaluate the node constraint\n   * @param node the node\n   * @param constraintForNode the constraint object\n   * @returns whether the node satisifies the constraint\n   */\n  evaluateNodeConstraint(node, constraintForNode) {\n    let result = false;\n\n    if (constraintForNode != null) {\n      const removalCriteria = constraintForNode.removalCriteria;\n      const removalConditional = constraintForNode.removalConditional;\n      if (removalCriteria == null) {\n        result = true;\n      } else {\n        let firstResult = true;\n        for (let tempCriteria of removalCriteria) {\n          if (tempCriteria != null) {\n            // evaluate the criteria\n            const tempResult = this.evaluateCriteria(tempCriteria);\n\n            if (firstResult) {\n              // this is the first criteria in this for loop\n              result = tempResult;\n              firstResult = false;\n            } else {\n              // this is not the first criteria\n\n              if (removalConditional === 'any') {\n                // any of the criteria can be true to remove the constraint\n                result = result || tempResult;\n              } else {\n                // all the criteria need to be true to remove the constraint\n                result = result && tempResult;\n              }\n            }\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n\n  /**\n   * Evaluate the criteria\n   * @param criteria the criteria\n   * @returns whether the criteria is satisfied or not\n   */\n  evaluateCriteria(criteria) {\n    let result = false;\n    if (criteria != null) {\n      const functionName = criteria.name;\n      if (functionName == null) {\n\n      } else if (functionName === 'branchPathTaken') {\n        result = this.evaluateBranchPathTakenCriteria(criteria);\n      } else if (functionName === 'isVisible') {\n\n      } else if (functionName === 'isVisitable') {\n\n      } else if (functionName === 'isVisited') {\n        result = this.evaluateIsVisitedCriteria(criteria);\n      } else if (functionName === 'isVisitedAfter') {\n        result = this.evaluateIsVisitedAfterCriteria(criteria);\n      } else if (functionName === 'isRevisedAfter') {\n        result = this.evaluateIsRevisedAfterCriteria(criteria);\n      } else if (functionName === 'isVisitedAndRevisedAfter') {\n        result = this.evaluateIsVisitedAndRevisedAfterCriteria(criteria);\n      } else if (functionName === 'isCompleted') {\n        result = this.evaluateIsCompletedCriteria(criteria);\n      } else if (functionName === 'isCorrect') {\n        result = this.evaluateIsCorrectCriteria(criteria);\n      } else if (functionName === 'choiceChosen') {\n        result = this.evaluateChoiceChosenCriteria(criteria);\n      } else if (functionName === 'isPlanningActivityCompleted') {\n        result = this.evaluateIsPlanningActivityCompletedCriteria(criteria);\n      } else if (functionName === 'score') {\n        result = this.evaluateScoreCriteria(criteria);\n      } else if (functionName === 'usedXSubmits') {\n        result = this.evaluateUsedXSubmitsCriteria(criteria);\n      } else if (functionName === 'wroteXNumberOfWords') {\n        result = this.evaluateNumberOfWordsWrittenCriteria(criteria);\n      } else if (functionName === '') {\n\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Check if the isCompleted criteria was satisfied\n   * @param criteria an isCompleted criteria\n   * @returns whether the criteria was satisfied or not\n   */\n  evaluateIsCompletedCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      const params = criteria.params;\n      const nodeId = params.nodeId;\n      return this.isCompleted(nodeId);\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isCorrect criteria was satisfied\n   * @param criteria an isCorrect criteria\n   * @returns whether the criteria was satisfied or not\n   */\n  evaluateIsCorrectCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      const params = criteria.params;\n      const nodeId = params.nodeId;\n      const componentId = params.componentId;\n\n      if (nodeId != null && componentId != null) {\n        const componentStates = this.getComponentStatesByNodeIdAndComponentId(nodeId, componentId);\n        if (componentStates != null) {\n          for (let componentState of componentStates) {\n            if (componentState != null) {\n              const studentData = componentState.studentData;\n              if (studentData != null) {\n                if (studentData.isCorrect) {\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isPlanningActivityCompleted criteria was satisfied\n   * @param criteria a isPlanningActivityCompleted criteria\n   * @returns whether the criteria was satisfied or not\n   */\n  evaluateIsPlanningActivityCompletedCriteria(criteria) {\n    let result = false;\n    if (criteria != null && criteria.params != null) {\n      const params = criteria.params;\n\n      // get the group id\n      const nodeId = params.nodeId;\n\n      // get the number of planning steps the student needs to create\n      const planningStepsCreated = params.planningStepsCreated;\n\n      // get whether the student needs to complete all the steps in the activity\n      const planningStepsCompleted = params.planningStepsCompleted;\n\n      let planningStepsCreatedSatisfied = false;\n      let planningStepsCompletedSatisfied = false;\n\n      let planningNodes = [];\n\n      if (planningStepsCreated == null) {\n        // there is no value set so we will regard it as satisfied\n        planningStepsCreatedSatisfied = true;\n      } else {\n        /*\n         * there is a value for number of planning steps that need to be created\n         * so we will check if the student created enough planning steps\n         */\n\n        // get the node states for the activity\n        const nodeStates = this.getNodeStatesByNodeId(nodeId);\n\n        if (nodeStates != null) {\n          for (let ns = nodeStates.length - 1; ns >= 0; ns--) {\n            let planningStepCount = 0;\n            const nodeState = nodeStates[ns];\n            if (nodeState != null) {\n              const studentData = nodeState.studentData;\n              if (studentData != null) {\n                const nodes = studentData.nodes;\n                if (nodes != null) {\n                  for (let node of nodes) {\n                    if (node != null) {\n                      if (node.type === 'node' && node.planningNodeTemplateId != null) {\n                        // we have found a planning step the student created\n                        planningStepCount++;\n                      }\n                    }\n                  }\n\n                  if (planningStepCount >= planningStepsCreated) {\n                    // the student has created a sufficient number of planning steps\n                    planningStepsCreatedSatisfied = true;\n                    planningNodes = nodes;\n                    break;\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n\n      if (planningStepsCompleted == null) {\n        planningStepsCompletedSatisfied = true;\n      } else {\n        /*\n         * check if the activity is completed. this checks if all\n         * the children of the activity are completed.\n         */\n        if (this.isCompleted(nodeId)) {\n          planningStepsCompletedSatisfied = true;\n        }\n      }\n\n      if (planningStepsCreatedSatisfied && planningStepsCompletedSatisfied) {\n        result = true;\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Check if this branchPathTaken criteria was satisfied\n   * @param criteria a branchPathTaken criteria\n   * @returns whether the branchPathTaken criteria was satisfied\n   */\n  evaluateBranchPathTakenCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      // get the expected from and to node ids\n      const expectedFromNodeId = criteria.params.fromNodeId;\n      const expectedToNodeId = criteria.params.toNodeId;\n\n      // get all the branchPathTaken events from the from node id\n      const branchPathTakenEvents = this.getBranchPathTakenEventsByNodeId(expectedFromNodeId);\n\n      if (branchPathTakenEvents != null) {\n        for (let branchPathTakenEvent of branchPathTakenEvents) {\n          if (branchPathTakenEvent != null) {\n            const data = branchPathTakenEvent.data;\n            if (data != null) {\n              // get the from and to node ids of the event\n              const fromNodeId = data.fromNodeId;\n              const toNodeId = data.toNodeId;\n              if (expectedFromNodeId === fromNodeId && expectedToNodeId === toNodeId) {\n                // the from and to node ids match the ones we are looking for\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Check if the isVisited criteria was satisfied\n   * @param criteria the isVisited criteria\n   * @returns whether the node id is visited\n   */\n  evaluateIsVisitedCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      const nodeId = criteria.params.nodeId;\n      const events = this.studentData.events;\n      if (events != null) {\n        for (let event of events) {\n          if (event != null) {\n            if (nodeId == event.nodeId && 'nodeEntered' === event.event) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isVisitedAfter criteria was satisfied\n   * @param criteria the isVisitedAfter criteria\n   * @returns whether the node id is visited after the criteriaCreatedTimestamp\n   */\n  evaluateIsVisitedAfterCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      let isVisitedAfterNodeId = criteria.params.isVisitedAfterNodeId;\n      let criteriaCreatedTimestamp = criteria.params.criteriaCreatedTimestamp;\n\n      let events = this.studentData.events;\n      if (events != null) {\n        for (let event of events) {\n          if (event != null) {\n            if (isVisitedAfterNodeId == event.nodeId &&\n              'nodeEntered' === event.event &&\n              event.clientSaveTime > criteriaCreatedTimestamp) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isRevisedAfter criteria was satisfied\n   * @param criteria the isRevisedAfter criteria\n   * @returns whether the specified node&component was revisted after the criteriaCreatedTimestamp\n   */\n  evaluateIsRevisedAfterCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      let isRevisedAfterNodeId = criteria.params.isRevisedAfterNodeId;\n      let isRevisedAfterComponentId = criteria.params.isRevisedAfterComponentId;\n      let criteriaCreatedTimestamp = criteria.params.criteriaCreatedTimestamp;\n\n      // the student has entered the node after the criteriaCreatedTimestamp.\n      // now check if student has revised the work after this event\n      let latestComponentStateForRevisedComponent = this.getLatestComponentStateByNodeIdAndComponentId(isRevisedAfterNodeId, isRevisedAfterComponentId);\n      if (latestComponentStateForRevisedComponent.clientSaveTime > criteriaCreatedTimestamp) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isVisitedAndRevisedAfter criteria was satisfied\n   * @param criteria the isVisitedAndRevisedAfter criteria\n   * @returns whether the specified nodes were visited and specified node&component was revisted after the criteriaCreatedTimestamp\n   */\n  evaluateIsVisitedAndRevisedAfterCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      // get the node id we want to check if was visited\n      let isVisitedAfterNodeId = criteria.params.isVisitedAfterNodeId;\n      let isRevisedAfterNodeId = criteria.params.isRevisedAfterNodeId;\n      let isRevisedAfterComponentId = criteria.params.isRevisedAfterComponentId;\n      let criteriaCreatedTimestamp = criteria.params.criteriaCreatedTimestamp;\n\n      let events = this.studentData.events;\n      if (events != null) {\n        for (let event of events) {\n          if (event != null) {\n            if (isVisitedAfterNodeId == event.nodeId && 'nodeEntered' === event.event && event.clientSaveTime > criteriaCreatedTimestamp) {\n              // the student has entered the node after the criteriaCreatedTimestamp.\n              // now check if student has revised the work after this event\n              let latestComponentStateForRevisedComponent = this.getLatestComponentStateByNodeIdAndComponentId(isRevisedAfterNodeId, isRevisedAfterComponentId);\n              if (latestComponentStateForRevisedComponent.clientSaveTime > event.clientSaveTime) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get all the branchPathTaken events by node id\n   * @params fromNodeId the from node id\n   * @returns all the branchPathTaken events from the given node id\n   */\n  getBranchPathTakenEventsByNodeId(fromNodeId) {\n    const branchPathTakenEvents = [];\n    const events = this.studentData.events;\n    if (events != null) {\n      for (let event of events) {\n        if (event != null) {\n          if (fromNodeId === event.nodeId && 'branchPathTaken' === event.event) {\n            // we have found a branchPathTaken event from the from node id\n            branchPathTakenEvents.push(event);\n          }\n        }\n      }\n    }\n    return branchPathTakenEvents;\n  }\n\n  /**\n   * Evaluate the choice chosen criteria\n   * @param criteria the criteria to evaluate\n   * @returns a boolean value whether the criteria was satisfied or not\n   */\n  evaluateChoiceChosenCriteria(criteria) {\n    const serviceName = 'MultipleChoiceService';  // Assume MC component.\n    if (this.$injector.has(serviceName)) {\n      const service = this.$injector.get(serviceName);\n      return service.choiceChosen(criteria);\n    }\n    return false;\n  };\n\n  /**\n   * Evaluate the score criteria\n   * @param criteria the criteria to evaluate\n   * @returns a boolean value whether the criteria was satisfied or not\n   */\n  evaluateScoreCriteria(criteria) {\n    const params = criteria.params;\n    if (params != null) {\n      const nodeId = params.nodeId;\n      const componentId = params.componentId;\n      const scores = params.scores;\n      const workgroupId = this.ConfigService.getWorkgroupId();\n      const scoreType = 'any';\n      if (nodeId != null && componentId != null && scores != null) {\n        const latestScoreAnnotation = this.AnnotationService.getLatestScoreAnnotation(nodeId, componentId, workgroupId, scoreType);\n        if (latestScoreAnnotation != null) {\n          const scoreValue = this.AnnotationService.getScoreValueFromScoreAnnotation(latestScoreAnnotation);\n\n          // check if the score value matches what the criteria is looking for. works when scores is array of integers or integer strings\n          if (scores.indexOf(scoreValue) != -1 || (scoreValue != null && scores.indexOf(scoreValue.toString()) != -1)) {\n            /*\n             * the student has received a score that matches a score\n             * we're looking for\n             */\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Evaluate the used x submits criteria which requires the student to submit\n   * at least x number of times.\n   * @param criteria the criteria to evaluate\n   * @returns a boolean value whether the student submitted at least x number\n   * of times\n   */\n  evaluateUsedXSubmitsCriteria(criteria) {\n    const params = criteria.params;\n    if (params != null) {\n      const nodeId = params.nodeId;\n      const componentId = params.componentId;\n      const requiredSubmitCount = params.requiredSubmitCount;\n\n      if (nodeId != null && componentId != null) {\n        const componentStates = this.getComponentStatesByNodeIdAndComponentId(nodeId, componentId);\n        if (componentStates != null) {\n          // counter for manually counting the component states with isSubmit=true\n          let manualSubmitCounter = 0;\n\n          // counter for remembering the highest submitCounter value found in studentData objects\n          let highestSubmitCounter = 0;\n\n          /*\n           * We are counting with two submit counters for backwards compatibility.\n           * Some componentStates only have isSubmit=true and do not keep an\n           * updated submitCounter for the number of submits.\n           */\n\n          for (let componentState of componentStates) {\n            if (componentState != null) {\n              if (componentState.isSubmit) {\n                manualSubmitCounter++;\n              }\n              const studentData = componentState.studentData;\n              if (studentData != null) {\n                if (studentData.submitCounter != null) {\n                  if (studentData.submitCounter > highestSubmitCounter) {\n                    /*\n                     * the submit counter in the student data is higher\n                     * than we have previously seen\n                     */\n                    highestSubmitCounter = studentData.submitCounter;\n                  }\n                }\n              }\n            }\n          }\n\n          if (manualSubmitCounter >= requiredSubmitCount || highestSubmitCounter >= requiredSubmitCount) {\n            // the student submitted the required number of times\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Evaluate the number of words written criteria.\n   * @param criteria The criteria to evaluate.\n   * @return A boolean value whether the student wrote the required number of\n   * words.\n   */\n  evaluateNumberOfWordsWrittenCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      const params = criteria.params;\n      const nodeId = params.nodeId;\n      const componentId = params.componentId;\n      const requiredNumberOfWords = params.requiredNumberOfWords;\n\n      if (nodeId != null && componentId != null) {\n        const componentState = this.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n        if (componentState != null) {\n          const studentData = componentState.studentData;\n          const response = studentData.response;\n          const numberOfWords = this.UtilService.wordCount(response);\n          if (numberOfWords >= requiredNumberOfWords) {\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Populate the stack history and visited nodes history\n   * @param events the events\n   */\n  populateHistories(events) {\n    this.stackHistory = [];\n    this.visitedNodesHistory = [];\n\n    if (events != null) {\n      for (let event of events) {\n        if (event != null && event.event === 'nodeEntered') {\n          this.updateStackHistory(event.nodeId);\n          this.updateVisitedNodesHistory(event.nodeId);\n        }\n      }\n    }\n  };\n\n  getStackHistoryAtIndex(index) {\n    if (index < 0) {\n      index = this.stackHistory.length + index;\n    }\n    if (this.stackHistory != null && this.stackHistory.length > 0) {\n      return this.stackHistory[index];\n    }\n    return null;\n  };\n\n  getStackHistory() {\n    return this.stackHistory;\n  };\n\n  updateStackHistory(nodeId) {\n    const indexOfNodeId = this.stackHistory.indexOf(nodeId);\n    if (indexOfNodeId === -1) {\n      this.stackHistory.push(nodeId);\n    } else {\n      this.stackHistory.splice(indexOfNodeId + 1, this.stackHistory.length);\n    }\n  };\n\n  updateVisitedNodesHistory(nodeId) {\n    const indexOfNodeId = this.visitedNodesHistory.indexOf(nodeId);\n    if (indexOfNodeId === -1) {\n      this.visitedNodesHistory.push(nodeId);\n    }\n  };\n\n  getVisitedNodesHistory() {\n    return this.visitedNodesHistory;\n  };\n\n  isNodeVisited(nodeId) {\n    const visitedNodesHistory = this.visitedNodesHistory;\n    if (visitedNodesHistory != null) {\n      const indexOfNodeId = visitedNodesHistory.indexOf(nodeId);\n      if (indexOfNodeId !== -1) {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  createComponentState() {\n    const componentState = {};\n    componentState.timestamp = Date.parse(new Date());\n    return componentState;\n  };\n\n  addComponentState(componentState) {\n    if (this.studentData != null && this.studentData.componentStates != null) {\n      this.studentData.componentStates.push(componentState);\n    }\n  };\n\n  addNodeState(nodeState) {\n    if (this.studentData != null && this.studentData.nodeStates != null) {\n      this.studentData.nodeStates.push(nodeState);\n    }\n  };\n\n  /**\n   * Returns all NodeStates\n   * @returns Array of all NodeStates\n   */\n  getNodeStates() {\n    if (this.studentData != null && this.studentData.nodeStates != null) {\n      return this.studentData.nodeStates;\n    }\n    return [];\n  };\n\n  /**\n   * Get all NodeStates for a specific node\n   * @param nodeId id of node\n   * @returns Array of NodeStates for the specified node\n   */\n  getNodeStatesByNodeId(nodeId) {\n    const nodeStatesByNodeId = [];\n    if (this.studentData != null && this.studentData.nodeStates != null) {\n      const nodeStates = this.studentData.nodeStates;\n      for (let nodeState of nodeStates) {\n        if (nodeState != null) {\n          const tempNodeId = nodeState.nodeId;\n          if (nodeId === tempNodeId) {\n            nodeStatesByNodeId.push(nodeState);\n          }\n        }\n      }\n    }\n    return nodeStatesByNodeId;\n  };\n\n  addEvent(event) {\n    if (this.studentData != null && this.studentData.events != null) {\n      this.studentData.events.push(event);\n    }\n  };\n\n  addAnnotation(annotation) {\n    if (this.studentData != null && this.studentData.annotations != null) {\n      this.studentData.annotations.push(annotation);\n    }\n  };\n\n  handleAnnotationReceived(annotation) {\n    this.studentData.annotations.push(annotation);\n    if (annotation.notebookItemId) {\n      this.$rootScope.$broadcast('notebookItemAnnotationReceived', {annotation: annotation});\n    } else {\n      this.$rootScope.$broadcast('annotationReceived', {annotation: annotation});\n    }\n  }\n\n  saveComponentEvent(component, category, event, data) {\n    if (component == null || category == null || event == null) {\n      alert(this.$translate('STUDENT_DATA_SERVICE_SAVE_COMPONENT_EVENT_COMPONENT_CATEGORY_EVENT_ERROR'));\n      return;\n    }\n    const context = \"Component\";\n    const nodeId = component.nodeId;\n    const componentId = component.componentId;\n    const componentType = component.componentType;\n    if (nodeId == null || componentId == null || componentType == null) {\n      alert(this.$translate('STUDENT_DATA_SERVICE_SAVE_COMPONENT_EVENT_NODE_ID_COMPONENT_ID_COMPONENT_TYPE_ERROR'));\n      return;\n    }\n    this.saveEvent(context, nodeId, componentId, componentType, category, event, data);\n  };\n\n  saveVLEEvent(nodeId, componentId, componentType, category, event, data) {\n    if (category == null || event == null) {\n      alert(this.$translate('STUDENT_DATA_SERVICE_SAVE_VLE_EVENT_CATEGORY_EVENT_ERROR'));\n      return;\n    }\n    const context = \"VLE\";\n    this.saveEvent(context, nodeId, componentId, componentType, category, event, data);\n  };\n\n  saveEvent(context, nodeId, componentId, componentType, category, event, data) {\n    const events = [];\n    const newEvent = this.createNewEvent();\n    newEvent.context = context;\n    newEvent.nodeId = nodeId;\n    newEvent.componentId = componentId;\n    newEvent.type = componentType;\n    newEvent.category = category;\n    newEvent.event = event;\n    newEvent.data = data;\n    events.push(newEvent);\n    const componentStates = null;\n    const nodeStates = null;\n    const annotations = null;\n    this.saveToServer(componentStates, nodeStates, events, annotations);\n  };\n\n  /**\n   * Create a new empty event\n   * @return a new empty event\n   */\n  createNewEvent() {\n    const event = {};\n    event.projectId = this.ConfigService.getProjectId();\n    event.runId = this.ConfigService.getRunId();\n    event.periodId = this.ConfigService.getPeriodId();\n    event.workgroupId = this.ConfigService.getWorkgroupId();\n    event.clientSaveTime = Date.parse(new Date());\n    return event;\n  };\n\n  saveNodeStates(nodeStates) {\n    const componentStates = null;\n    const events = null;\n    const annotations = null;\n    this.saveToServer(componentStates, nodeStates, events, annotations);\n  };\n\n\n  saveAnnotations(annotations) {\n    const componentStates = null;\n    const nodeStates = null;\n    const events = null;\n    this.saveToServer(componentStates, nodeStates, events, annotations);\n  };\n\n  saveToServer(componentStates, nodeStates, events, annotations) {\n    /*\n     * increment the request count since we are about to save data\n     * to the server\n     */\n    this.saveToServerRequestCount += 1;\n\n    // merge componentStates and nodeStates into StudentWork before posting\n    const studentWorkList = [];\n    if (componentStates != null && componentStates.length > 0) {\n      for (let componentState of componentStates) {\n        if (componentState != null) {\n          componentState.requestToken = this.UtilService.generateKey(); // use this to keep track of unsaved componentStates.\n          this.addComponentState(componentState);\n          studentWorkList.push(componentState);\n        }\n      }\n    }\n\n    if (nodeStates != null && nodeStates.length > 0) {\n      for (let nodeState of nodeStates) {\n        if (nodeState != null) {\n          nodeState.requestToken = this.UtilService.generateKey(); // use this to keep track of unsaved componentStates.\n          this.addNodeState(nodeState);\n          studentWorkList.push(nodeState);\n        }\n      }\n    }\n\n    if (events != null && events.length > 0) {\n      for (let event of events) {\n        if (event != null) {\n          event.requestToken = this.UtilService.generateKey(); // use this to keep track of unsaved events.\n          this.addEvent(event);\n        }\n      }\n    } else {\n      events = [];\n    }\n\n    if (annotations != null && annotations.length > 0) {\n      for (let annotation of annotations) {\n        if (annotation != null) {\n          annotation.requestToken = this.UtilService.generateKey(); // use this to keep track of unsaved annotations.\n          if (annotation.id == null) {\n            // add to local annotation array if this annotation has not been saved to the server before.\n            this.addAnnotation(annotation);\n          }\n        }\n      }\n    } else {\n      annotations = [];\n    }\n\n    if (this.ConfigService.isPreview()) {\n      const savedStudentDataResponse = {\n        studentWorkList: studentWorkList,\n        events: events,\n        annotations: annotations\n      };\n\n      // if we're in preview, don't make any request to the server but pretend we did\n      this.saveToServerSuccess(savedStudentDataResponse);\n      let deferred = this.$q.defer();\n      deferred.resolve(savedStudentDataResponse);\n      return deferred.promise;\n    } else {\n      // set the workgroup id and run id\n      const params = {};\n      params.projectId = this.ConfigService.getProjectId();\n      params.runId = this.ConfigService.getRunId();\n      params.workgroupId = this.ConfigService.getWorkgroupId();\n      params.studentWorkList = angular.toJson(studentWorkList);\n      params.events = angular.toJson(events);\n      params.annotations = angular.toJson(annotations);\n\n      // get the url to POST the student data\n      const httpParams = {};\n      httpParams.method = 'POST';\n      httpParams.url = this.ConfigService.getConfigParam('studentDataURL');\n      httpParams.headers = {'Content-Type': 'application/x-www-form-urlencoded'};\n      httpParams.data = $.param(params);\n\n      // make the request to post the student data\n      return this.$http(httpParams).then(\n        result => {\n          // get the local references to the component states that were posted and set their id and serverSaveTime\n          if (result != null && result.data != null) {\n            const savedStudentDataResponse = result.data;\n\n            this.saveToServerSuccess(savedStudentDataResponse);\n\n            return savedStudentDataResponse;\n          }\n        }, result => {\n          // a server error occured\n\n          /*\n           * decrement the request count since this request failed\n           * but is now completed\n           */\n          this.saveToServerRequestCount -= 1;\n\n          return null;\n        }\n      );\n    }\n  };\n\n  saveToServerSuccess(savedStudentDataResponse) {\n    // set dummy serverSaveTime for use if we're in preview mode\n    let serverSaveTime = Date.parse(new Date());\n\n    // handle saved studentWork\n    if (savedStudentDataResponse.studentWorkList) {\n      let savedStudentWorkList = savedStudentDataResponse.studentWorkList;\n      let localStudentWorkList = this.studentData.componentStates;\n      if (this.studentData.nodeStates) {\n        localStudentWorkList = localStudentWorkList.concat(this.studentData.nodeStates);\n      }\n\n      // set the id and serverSaveTime in the local studentWorkList\n      for (let savedStudentWork of savedStudentWorkList) {\n        /*\n         * loop through all the student work that were posted\n         * to find the one with the matching request token\n         */\n        for (let l = localStudentWorkList.length - 1; l >= 0; l--) {\n          const localStudentWork = localStudentWorkList[l];\n          if (localStudentWork.requestToken &&\n            localStudentWork.requestToken === savedStudentWork.requestToken) {\n            localStudentWork.id = savedStudentWork.id;\n            localStudentWork.serverSaveTime = savedStudentWork.serverSaveTime ? savedStudentWork.serverSaveTime : serverSaveTime;\n            localStudentWork.requestToken = null; // requestToken is no longer needed.\n\n            if (this.ConfigService.getMode() == \"preview\" && localStudentWork.id == null) {\n              /*\n               * we are in preview mode so we will set a dummy\n               * student work id into the student work\n               */\n              localStudentWork.id = this.dummyStudentWorkId;\n\n              /*\n               * increment the dummy student work id for the next\n               * student work\n               */\n              this.dummyStudentWorkId++;\n            }\n\n            this.$rootScope.$broadcast('studentWorkSavedToServer', {studentWork: localStudentWork});\n            break;\n          }\n        }\n      }\n    }\n    // handle saved events\n    if (savedStudentDataResponse.events) {\n      const savedEvents = savedStudentDataResponse.events;\n\n      const localEvents = this.studentData.events;\n\n      // set the id and serverSaveTime in the local event\n      for (let savedEvent of savedEvents) {\n        /*\n         * loop through all the events that were posted\n         * to find the one with the matching request token\n         */\n        for (let l = localEvents.length - 1; l >= 0; l--) {\n          const localEvent = localEvents[l];\n          if (localEvent.requestToken &&\n            localEvent.requestToken === savedEvent.requestToken) {\n            localEvent.id = savedEvent.id;\n            localEvent.serverSaveTime = savedEvent.serverSaveTime ? savedEvent.serverSaveTime : serverSaveTime;\n            localEvent.requestToken = null; // requestToken is no longer needed.\n\n            this.$rootScope.$broadcast('eventSavedToServer', {event: localEvent});\n            break;\n          }\n        }\n      }\n    }\n\n    // handle saved annotations\n    if (savedStudentDataResponse.annotations) {\n      const savedAnnotations = savedStudentDataResponse.annotations;\n      const localAnnotations = this.studentData.annotations;\n\n      // set the id and serverSaveTime in the local annotation\n      for (let savedAnnotation of savedAnnotations) {\n        /*\n         * loop through all the events that were posted\n         * to find the one with the matching request token\n         */\n        for (let l = localAnnotations.length - 1; l >= 0; l--) {\n          const localAnnotation = localAnnotations[l];\n          if (localAnnotation.requestToken &&\n            localAnnotation.requestToken === savedAnnotation.requestToken) {\n            localAnnotation.id = savedAnnotation.id;\n            localAnnotation.serverSaveTime = savedAnnotation.serverSaveTime ? savedAnnotation.serverSaveTime : serverSaveTime;\n            localAnnotation.requestToken = null; // requestToken is no longer needed.\n\n            this.$rootScope.$broadcast('annotationSavedToServer', {annotation: localAnnotation});\n            break;\n          }\n        }\n      }\n    }\n\n    /*\n     * decrement the request count since we have received a response to\n     * one of our save requests\n     */\n    this.saveToServerRequestCount -= 1;\n\n    if (this.saveToServerRequestCount == 0) {\n      /*\n       * we have received the reponse to all of the saveToServer requests\n       * so we will now update the student status and save it to the\n       * server\n       */\n      this.updateNodeStatuses();\n      this.saveStudentStatus();\n    }\n  };\n\n  /**\n   * POSTs student status to server\n   * Returns a promise of the POST request\n   */\n  saveStudentStatus() {\n    if (!this.ConfigService.isPreview()) {\n      const studentStatusURL = this.ConfigService.getStudentStatusURL();\n      if (studentStatusURL != null) {\n        const runId = this.ConfigService.getRunId();\n        const periodId = this.ConfigService.getPeriodId();\n        const workgroupId = this.ConfigService.getWorkgroupId();\n        const currentNodeId = this.getCurrentNodeId();\n        const nodeStatuses = this.getNodeStatuses();\n        const projectCompletion = this.getProjectCompletion();\n\n        // create the JSON that will be saved to the database\n        const studentStatusJSON = {};\n        studentStatusJSON.runId = runId;\n        studentStatusJSON.periodId = periodId;\n        studentStatusJSON.workgroupId = workgroupId;\n        studentStatusJSON.currentNodeId = currentNodeId;\n        studentStatusJSON.nodeStatuses = nodeStatuses;\n        studentStatusJSON.projectCompletion = projectCompletion;\n\n        const status = angular.toJson(studentStatusJSON);\n        const studentStatusParams = {};\n        studentStatusParams.runId = runId;\n        studentStatusParams.periodId = periodId;\n        studentStatusParams.workgroupId = workgroupId;\n        studentStatusParams.status = status;\n\n        const httpParams = {};\n        httpParams.method = 'POST';\n        httpParams.url = studentStatusURL;\n        httpParams.headers = {'Content-Type': 'application/x-www-form-urlencoded'};\n        httpParams.data = $.param(studentStatusParams);\n\n        return this.$http(httpParams).then(\n          result => {\n            return true;\n          }, result => {\n            return false;\n          }\n        );\n      }\n    }\n  };\n\n  retrieveComponentStates(runId, periodId, workgroupId) {\n\n  };\n\n  getLatestComponentState() {\n    const studentData = this.studentData;\n    if (studentData != null) {\n      const componentStates = studentData.componentStates;\n      if (componentStates != null) {\n        return componentStates[componentStates.length - 1];\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Check whether the component has unsubmitted work\n   * @return boolean whether or not there is unsubmitted work\n   */\n  isComponentSubmitDirty() {\n    let latestComponentState = this.getLatestComponentState();\n    if (latestComponentState && !latestComponentState.isSubmit) {\n      return true;\n    }\n    return false;\n  };\n\n  /**\n   * Get the latest NodeState for the specified node id\n   * @param nodeId the node id\n   * @return the latest node state with the matching node id or null if none are found\n   */\n  getLatestNodeStateByNodeId(nodeId) {\n    let allNodeStatesByNodeId = this.getNodeStatesByNodeId(nodeId);\n    if (allNodeStatesByNodeId != null && allNodeStatesByNodeId.length > 0) {\n      return allNodeStatesByNodeId[allNodeStatesByNodeId.length - 1];\n    }\n    return null;\n  };\n\n  /**\n   * Get the latest component state for the given node id and component\n   * id.\n   * @param nodeId the node id\n   * @param componentId the component id (optional)\n   * @return the latest component state with the matching node id and\n   * component id or null if none are found\n   */\n  getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId) {\n    if (nodeId) {\n      const studentData = this.studentData;\n      if (studentData) {\n        // get the component states\n        const componentStates = studentData.componentStates;\n        if (componentStates) {\n          for (let c = componentStates.length - 1; c >= 0; c--) {\n            const componentState = componentStates[c];\n            if (componentState) {\n              const componentStateNodeId = componentState.nodeId;\n              if (nodeId === componentStateNodeId) {\n                if (componentId) {\n                  const componentStateComponentId = componentState.componentId;\n                  if (componentId === componentStateComponentId) {\n                    return componentState;\n                  }\n                } else {\n                  return componentState;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the student work by specified student work id, which can be a ComponentState or NodeState\n   * @param studentWorkId the student work id\n   * @return an StudentWork or null\n   */\n  getStudentWorkByStudentWorkId(studentWorkId) {\n    if (studentWorkId != null) {\n      const componentStates = this.studentData.componentStates;\n      if (componentStates != null) {\n        for (let componentState of componentStates) {\n          if (componentState != null && componentState.id === studentWorkId) {\n            return componentState;\n          }\n        }\n      }\n\n      const nodeStates = this.studentData.nodeStates;\n      if (nodeStates != null) {\n        for (let nodeState of nodeStates) {\n          if (nodeState != null && nodeState.id === studentWorkId) {\n            return nodeState;\n          }\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Returns all the component states for this workgroup\n   */\n  getComponentStates() {\n    return this.studentData.componentStates;\n  };\n\n  /**\n   * Get the component states for the given node id\n   * @param nodeId the node id\n   * @return an array of component states for the given node id\n   */\n  getComponentStatesByNodeId(nodeId) {\n    const componentStatesByNodeId = [];\n    if (nodeId != null) {\n      const studentData = this.studentData;\n      if (studentData != null) {\n        const componentStates = studentData.componentStates;\n        if (componentStates != null) {\n          for (let componentState of componentStates) {\n            if (componentState != null) {\n              const componentStateNodeId = componentState.nodeId;\n              if (nodeId == componentStateNodeId) {\n                componentStatesByNodeId.push(componentState);\n              }\n            }\n          }\n        }\n      }\n    }\n    return componentStatesByNodeId;\n  };\n\n  /**\n   * Get the component states for the given node id and component id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @return an array of component states for the given node id and\n   * component id\n   */\n  getComponentStatesByNodeIdAndComponentId(nodeId, componentId) {\n    const componentStatesByNodeIdAndComponentId = [];\n    if (nodeId != null && componentId != null) {\n      const studentData = this.studentData;\n      if (studentData != null) {\n        const componentStates = studentData.componentStates;\n        if (componentStates != null) {\n          for (let componentState of componentStates) {\n            if (componentState != null) {\n              const componentStateNodeId = componentState.nodeId;\n              const componentStateComponentId = componentState.componentId;\n              if (nodeId == componentStateNodeId &&\n                  componentId == componentStateComponentId) {\n                componentStatesByNodeIdAndComponentId.push(componentState);\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return componentStatesByNodeIdAndComponentId;\n  };\n\n  /**\n   * Get all events\n   * @returns all events for the student\n   */\n  getEvents() {\n    if (this.studentData != null && this.studentData.events != null) {\n      return this.studentData.events;\n    } else {\n      return [];\n    }\n  };\n\n  /**\n   * Get the events for a node id\n   * @param nodeId the node id\n   * @returns the events for the node id\n   */\n  getEventsByNodeId(nodeId) {\n    const eventsByNodeId = [];\n    if (nodeId != null) {\n      if (this.studentData != null && this.studentData.events != null) {\n        const events = this.studentData.events;\n        for (let event of events) {\n          if (event != null) {\n            const eventNodeId = event.nodeId;\n            if (nodeId === eventNodeId) {\n              eventsByNodeId.push(event);\n            }\n          }\n        }\n      }\n    }\n    return eventsByNodeId;\n  };\n\n  /**\n   * Get the events for a component id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns an array of events for the component id\n   */\n  getEventsByNodeIdAndComponentId(nodeId, componentId) {\n    const eventsByNodeId = [];\n    if (nodeId != null) {\n      if (this.studentData != null && this.studentData.events != null) {\n        const events = this.studentData.events;\n        for (let event of events) {\n          if (event != null) {\n            const eventNodeId = event.nodeId;\n            const eventComponentId = event.componentId;\n            if (nodeId === eventNodeId && componentId === eventComponentId) {\n              eventsByNodeId.push(event);\n            }\n          }\n        }\n      }\n    }\n    return eventsByNodeId;\n  };\n\n  /**\n   * Get the node id of the latest node entered event for an active node that\n   * exists in the project. We need to check if the node exists in the project\n   * in case the node has been deleted from the project. We also need to check\n   * that the node is active in case the node has been moved to the inactive\n   * section of the project.\n   * @return the node id of the latest node entered event for an active node\n   * that exists in the project\n   */\n  getLatestNodeEnteredEventNodeIdWithExistingNode() {\n    const events = this.studentData.events;\n    for (let e = events.length - 1; e >= 0; e--) {\n      const event = events[e];\n      if (event != null) {\n        const eventName = event.event;\n        if (eventName == 'nodeEntered') {\n          const nodeId = event.nodeId;\n          const node = this.ProjectService.getNodeById(nodeId);\n          if (node != null) {\n            if (this.ProjectService.isActive(nodeId)) {\n              return nodeId;\n            }\n          }\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Check if the student can visit the node\n   * @param nodeId the node id\n   * @returns whether the student can visit the node\n   */\n  canVisitNode(nodeId) {\n    if (nodeId != null) {\n      // get the node status for the node\n      const nodeStatus = this.getNodeStatusByNodeId(nodeId);\n      if (nodeStatus != null) {\n        if (nodeStatus.isVisitable) {\n          return true;\n        }\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Get the node status by node id\n   * @param nodeId the node id\n   * @returns the node status object for a node\n   */\n  getNodeStatusByNodeId(nodeId) {\n    if (nodeId != null) {\n      return this.nodeStatuses[nodeId];\n    }\n    return null;\n  };\n\n  /**\n   * Get progress information for a given node\n   * @param nodeId the node id\n   * @returns object with number of completed items (both all and for items\n   * that capture student work), number of visible items (all/with work),\n   * completion % (for all items, items with student work)\n   */\n  getNodeProgressById(nodeId) {\n    let completedItems = 0;\n    let completedItemsWithWork = 0;\n    let totalItems = 0;\n    let totalItemsWithWork = 0;\n    let progress = {};\n\n    if (this.ProjectService.isGroupNode(nodeId)) {\n      let nodeIds = this.ProjectService.getChildNodeIdsById(nodeId);\n      for (let id of nodeIds) {\n        let status = this.nodeStatuses[id];\n        if (this.ProjectService.isGroupNode(id)) {\n          if (status.progress.totalItemsWithWork > -1) {\n            completedItems += status.progress.completedItems;\n            totalItems += status.progress.totalItems;\n            completedItemsWithWork += status.progress.completedItemsWithWork;\n            totalItemsWithWork += status.progress.totalItemsWithWork;\n          } else {\n            // we have a legacy node status so we'll need to calculate manually\n            let groupProgress = this.getNodeProgressById(id);\n            completedItems += groupProgress.completedItems;\n            totalItems += groupProgress.totalItems;\n            completedItemsWithWork += groupProgress.completedItemsWithWork;\n            totalItemsWithWork += groupProgress.totalItemsWithWork;\n          }\n        } else {\n          if (status.isVisible) {\n            totalItems++;\n\n            let hasWork = this.ProjectService.nodeHasWork(id);\n            if (hasWork) {\n              totalItemsWithWork++;\n            }\n\n            if (status.isCompleted) {\n              completedItems++;\n\n              if (hasWork) {\n                completedItemsWithWork++;\n              }\n            }\n          }\n        }\n      }\n\n      let completionPct = totalItems ? Math.round(completedItems / totalItems * 100) : 0;\n      let completionPctWithWork = totalItemsWithWork ? Math.round(completedItemsWithWork / totalItemsWithWork * 100) : 0;\n\n      progress = {\n        \"completedItems\": completedItems,\n        \"completedItemsWithWork\": completedItemsWithWork,\n        \"totalItems\": totalItems,\n        \"totalItemsWithWork\": totalItemsWithWork,\n        \"completionPct\": completionPct,\n        \"completionPctWithWork\": completionPctWithWork\n      };\n    }\n\n    // TODO: implement for steps (using components instead of child nodes)?\n\n    return progress;\n  };\n\n  /**\n   * Check if the given node or component is completed\n   * @param nodeId the node id\n   * @param componentId (optional) the component id\n   * @returns whether the node or component is completed\n   */\n  isCompleted(nodeId, componentId) {\n    let result = false;\n    if (nodeId && componentId) {\n      // check that the component is completed\n\n      // get the component states for the component\n      const componentStates = this.getComponentStatesByNodeIdAndComponentId(nodeId, componentId);\n\n      // get the component events\n      const componentEvents = this.getEventsByNodeIdAndComponentId(nodeId, componentId);\n\n      // get the node events\n      const nodeEvents = this.getEventsByNodeId(nodeId);\n\n      // get the component object\n      const component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      const node = this.ProjectService.getNodeById(nodeId);\n      if (component != null) {\n        // get the component type\n        const componentType = component.type;\n\n        if (componentType != null) {\n          // get the service for the component type\n          const service = this.$injector.get(componentType + 'Service');\n\n          // check if the component is completed\n          if (service.isCompleted(component, componentStates, componentEvents, nodeEvents, node)) {\n            result = true;\n          }\n        }\n      }\n    } else if (nodeId) {\n      // check if node is a group\n      const isGroup = this.ProjectService.isGroupNode(nodeId);\n\n      const node = this.ProjectService.getNodeById(nodeId);\n\n      if (isGroup) {\n        // node is a group\n        let tempResult = true;\n\n        // check that all the nodes in the group are visible and completed\n        const nodeIds = this.ProjectService.getChildNodeIdsById(nodeId);\n\n        if (nodeIds.length) {\n          for (let id of nodeIds) {\n            if (this.nodeStatuses[id] == null || !this.nodeStatuses[id].isVisible || !this.nodeStatuses[id].isCompleted) {\n              // the child is not visible or not completed so the group is not completed\n              tempResult = false;\n              break;\n            }\n          }\n        } else {\n          // there are no nodes in the group (could be a planning activity, for example), so set isCompleted to false\n          tempResult = false;\n        }\n        result = tempResult;\n      } else {\n        // check that all the components in the node are completed\n\n        // get all the components in the node\n        const components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n        // we will default to is completed true\n        let tempResult = true;\n\n        /*\n         * All components must be completed in order for the node to be completed\n         * so we will loop through all the components and check if they are\n         * completed\n         */\n        for (let component of components) {\n          if (component != null) {\n            const componentId = component.id;\n            const componentType = component.type;\n            const showPreviousWorkNodeId = component.showPreviousWorkNodeId;\n            const showPreviousWorkComponentId = component.showPreviousWorkComponentId;\n\n            let tempNodeId = nodeId;\n            let tempNode = node;\n            let tempComponentId = componentId;\n            let tempComponent = component;\n\n            if (showPreviousWorkNodeId != null && showPreviousWorkComponentId != null) {\n              /*\n               * this is a show previous work component so we will check if the\n               * previous component was completed\n               */\n              tempNodeId = showPreviousWorkNodeId;\n              tempComponentId = showPreviousWorkComponentId;\n              tempNode = this.ProjectService.getNodeById(tempNodeId);\n              tempComponent = this.ProjectService.getComponentByNodeIdAndComponentId(tempNodeId, tempComponentId);\n            }\n\n            if (componentType != null) {\n              try {\n                // get the service name\n                const serviceName = componentType + 'Service';\n\n                if (this.$injector.has(serviceName)) {\n                  // get the service for the component type\n                  const service = this.$injector.get(serviceName);\n\n                  // get the component states for the component\n                  const componentStates = this.getComponentStatesByNodeIdAndComponentId(tempNodeId, tempComponentId);\n\n                  // get the component events\n                  const componentEvents = this.getEventsByNodeIdAndComponentId(tempNodeId, tempComponentId);\n\n                  // get the node events\n                  const nodeEvents = this.getEventsByNodeId(tempNodeId);\n\n                  // check if the component is completed\n                  const isComponentCompleted = service.isCompleted(tempComponent, componentStates, componentEvents, nodeEvents, tempNode);\n\n                  tempResult = tempResult && isComponentCompleted;\n                }\n              } catch (e) {\n                console.log(this.$translate('ERROR_COULD_NOT_CALCULATE_IS_COMPLETED') + tempComponentId);\n              }\n            }\n          }\n        }\n        result = tempResult;\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Get the current node\n   * @returns the current node object\n   */\n  getCurrentNode() {\n    return this.currentNode;\n  };\n\n  /**\n   * Get the current node id\n   * @returns the current node id\n   */\n  getCurrentNodeId() {\n    if (this.currentNode != null) {\n      return this.currentNode.id;\n    }\n    return null;\n  };\n\n  /**\n   * Set the current node\n   * @param nodeId the node id\n   */\n  setCurrentNodeByNodeId(nodeId) {\n    if (nodeId != null) {\n      const node = this.ProjectService.getNodeById(nodeId);\n      this.setCurrentNode(node);\n    }\n  };\n\n  /**\n   * Set the current node\n   * @param node the node object\n   */\n  setCurrentNode(node) {\n    const previousCurrentNode = this.currentNode;\n    if (previousCurrentNode !== node) {\n      if (previousCurrentNode &&\n          !this.ProjectService.isGroupNode(previousCurrentNode.id)) {\n        this.previousStep = previousCurrentNode;\n      }\n      this.currentNode = node;\n      this.$rootScope.$broadcast('currentNodeChanged',\n          {previousNode: previousCurrentNode, currentNode: this.currentNode});\n    }\n  };\n\n  /**\n   * End the current node\n   */\n  endCurrentNode() {\n    const previousCurrentNode = this.currentNode;\n    if (previousCurrentNode != null) {\n      this.$rootScope.$broadcast('exitNode', {nodeToExit: previousCurrentNode});\n    }\n  };\n\n  /**\n   * End the current node and set the current node\n   * @param nodeId the node id of the new current node\n   */\n  endCurrentNodeAndSetCurrentNodeByNodeId(nodeId) {\n    if (this.nodeStatuses[nodeId].isVisitable) {\n      this.endCurrentNode();\n      this.setCurrentNodeByNodeId(nodeId);\n    } else {\n      this.nodeClickLocked(nodeId);\n    }\n  };\n\n  /**\n   * Broadcast a listenable event that a locked node has been clicked (attempted to be opened)\n   * @param nodeId\n   */\n  nodeClickLocked(nodeId) {\n    this.$rootScope.$broadcast('nodeClickLocked', {nodeId: nodeId});\n  };\n\n  /**\n   * This will parse a delimited string into an array of\n   * arrays. The default delimiter is the comma, but this\n   * can be overriden in the second argument.\n   * Source: http://www.bennadel.com/blog/1504-ask-ben-parsing-csv-strings-with-javascript-exec-regular-expression-command.htm\n   */\n  CSVToArray( strData, strDelimiter ) {\n    // Check to see if the delimiter is defined. If not,\n    // then default to comma.\n    strDelimiter = (strDelimiter || \",\");\n\n    // Create a regular expression to parse the CSV values.\n    const objPattern = new RegExp(\n      (\n        // Delimiters.\n        \"(\\\\\" + strDelimiter + \"|\\\\r?\\\\n|\\\\r|^)\" +\n\n        // Quoted fields.\n        \"(?:\\\"([^\\\"]*(?:\\\"\\\"[^\\\"]*)*)\\\"|\" +\n\n        // Standard fields.\n        \"([^\\\"\\\\\" + strDelimiter + \"\\\\r\\\\n]*))\"\n      ),\n      \"gi\"\n    );\n\n    // Create an array to hold our data. Give the array\n    // a default empty first row.\n    const arrData = [[]];\n\n    // Create an array to hold our individual pattern\n    // matching groups.\n    let arrMatches = null;\n\n\n    // Keep looping over the regular expression matches\n    // until we can no longer find a match.\n    while (arrMatches = objPattern.exec( strData )) {\n\n      // Get the delimiter that was found.\n      const strMatchedDelimiter = arrMatches[ 1 ];\n\n      // Check to see if the given delimiter has a length\n      // (is not the start of string) and if it matches\n      // field delimiter. If id does not, then we know\n      // that this delimiter is a row delimiter.\n      if (\n        strMatchedDelimiter.length &&\n        (strMatchedDelimiter != strDelimiter)\n      ){\n\n        // Since we have reached a new row of data,\n        // add an empty row to our data array.\n        arrData.push( [] );\n      }\n\n      // Now that we have our delimiter out of the way,\n      // let's check to see which kind of value we\n      // captured (quoted or unquoted).\n      if (arrMatches[ 2 ]){\n\n        // We found a quoted value. When we capture\n        // this value, unescape any double quotes.\n        const strMatchedValue = arrMatches[ 2 ].replace(\n          new RegExp( \"\\\"\\\"\", \"g\" ),\n          \"\\\"\"\n        );\n\n      } else {\n        // We found a non-quoted value.\n        const strMatchedValue = arrMatches[ 3 ];\n      }\n\n      // Now that we have our value string, let's add\n      // it to the data array.\n      let finalValue = strMatchedValue;\n      const floatVal = parseFloat(strMatchedValue);\n      if (!isNaN(floatVal)) {\n        finalValue = floatVal;\n      }\n      arrData[ arrData.length - 1 ].push( finalValue );\n    }\n    // Return the parsed data.\n    return( arrData );\n  };\n\n  /**\n   * Get the total score for the workgroup\n   * @returns the total score for the workgroup\n   */\n  getTotalScore() {\n    const annotations = this.studentData.annotations;\n    const workgroupId = this.ConfigService.getWorkgroupId();\n    return this.AnnotationService.getTotalScore(annotations, workgroupId);\n  }\n\n  /**\n   * Get the project completion for the signed in student\n   * @returns the project completion percentage for the signed in student\n   */\n  getProjectCompletion() {\n    // group0 is always the root node of the whole project\n    const nodeId = 'group0';\n\n    // get the progress including all of the children nodes\n    const progress = this.getNodeProgressById(nodeId);\n\n    return progress;\n  }\n\n  /**\n   * Get the run status\n   */\n  getRunStatus() {\n    return this.runStatus;\n  }\n\n  /**\n   * Get the next available planning node instance node id\n   * @returns the next available planning node instance node id\n   */\n  getNextAvailablePlanningNodeId() {\n    // used to keep track of the highest planning node number we have found, which is 1-based\n    let currentMaxPlanningNodeNumber = 1;\n\n    let nodeStates = this.getNodeStates();\n    if (nodeStates != null) {\n      for (let nodeState of nodeStates) {\n        if (nodeState != null) {\n          let nodeStateNodeId = nodeState.nodeId;\n          if (this.ProjectService.isPlanning(nodeStateNodeId) && nodeState.studentData != null) {\n            let nodes = nodeState.studentData.nodes;\n            for (let node of nodes) {\n              let nodeId = node.id;\n              // regex to match the planning node id e.g. planningNode2\n              let planningNodeIdRegEx = /planningNode(.*)/;\n\n              // run the regex on the node id\n              let result = nodeId.match(planningNodeIdRegEx);\n\n              if (result != null) {\n                // we have found a planning node instance node id\n\n                /*\n                 * get the number part of the planning node instance node id\n                 * e.g. if the nodeId is planningNode2, the number part\n                 * would be 2\n                 */\n                let planningNodeNumber = parseInt(result[1]);\n\n                if (planningNodeNumber > currentMaxPlanningNodeNumber) {\n                  /*\n                   * update the max number part if we have found a new\n                   * higher number\n                   */\n                  currentMaxPlanningNodeNumber = planningNodeNumber;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    if (this.maxPlanningNodeNumber < currentMaxPlanningNodeNumber) {\n      // Update maxPlanningNodeNumber if we find a bigger number in the NodeStates\n      this.maxPlanningNodeNumber = currentMaxPlanningNodeNumber;\n    }\n\n    // Increment maxPlanningNodeNumber each time this function is called.\n    this.maxPlanningNodeNumber++;\n\n    // return the next available planning node instance node id\n    return 'planningNode' + this.maxPlanningNodeNumber;\n  }\n\n  /**\n   * Get the annotations\n   * @returns the annotations\n   */\n  getAnnotations() {\n    if (this.studentData != null && this.studentData.annotations != null) {\n      return this.studentData.annotations;\n    }\n    return null;\n  }\n\n  /**\n   * Get the latest component states for a node\n   * @param nodeId get the component states for the node\n   * @return an array containing the work for the node\n   */\n  getLatestComponentStatesByNodeId(nodeId) {\n    const latestComponentStates = [];\n    if (nodeId) {\n      const studentData = this.studentData;\n      if (studentData) {\n        const node = this.ProjectService.getNodeById(nodeId);\n        if (node != null) {\n          const components = node.components;\n          if (components != null) {\n            for (let component of components) {\n              if (component != null) {\n                const componentId = component.id;\n                let componentState =\n                    this.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n                if (componentState == null) {\n                  /*\n                   * there is no component state for the component so we will\n                   * create an object that just contains the node id and\n                   * component id\n                   */\n                  componentState = {};\n                  componentState.nodeId = nodeId;\n                  componentState.componentId = componentId;\n                }\n                latestComponentStates.push(componentState);\n              }\n            }\n          }\n        }\n      }\n    }\n    return latestComponentStates;\n  }\n\n  /**\n   * Get the latest component state for a node\n   * @param nodeId get the latest component state for the node\n   * @return the latest component state for the node\n   */\n  getLatestComponentStateByNodeId(nodeId) {\n    if (nodeId != null) {\n      const studentData = this.studentData;\n      if (studentData) {\n        const componentStates = this.getComponentStatesByNodeId(nodeId);\n        return componentStates[componentStates.length - 1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Check if the completion criteria is satisfied\n   * @param completionCriteria the completion criteria\n   * @return whether the completion criteria was satisfied\n   */\n  isCompletionCriteriaSatisfied(completionCriteria) {\n    let result = true;\n    if (completionCriteria != null) {\n      if (completionCriteria.inOrder) {\n        // the criteria need to be satisfied in order\n\n        let tempTimestamp = 0;\n        const criteria = completionCriteria.criteria;\n        for (let completionCriterion of criteria) {\n          let tempResult = true;\n          if (completionCriterion != null) {\n            // get the function name e.g. 'isVisited', 'isSaved', 'isSubmitted'\n            const functionName = completionCriterion.name;\n\n            if (functionName == 'isSubmitted') {\n              const nodeId = completionCriterion.nodeId;\n              const componentId = completionCriterion.componentId;\n\n              // get the first submit component state after the timestamp\n              const tempComponentState = this.getComponentStateSubmittedAfter(nodeId, componentId, tempTimestamp);\n\n              if (tempComponentState == null) {\n                // we did not find a component state\n                result = false;\n                break;\n              } else {\n                // we found a component state so we will update timestamp\n                tempTimestamp = tempComponentState.serverSaveTime;\n              }\n            } else if (functionName == 'isSaved') {\n              const nodeId = completionCriterion.nodeId;\n              const componentId = completionCriterion.componentId;\n\n              // get the first save component state after the timestamp\n              const tempComponentState = this.getComponentStateSavedAfter(nodeId, componentId, tempTimestamp);\n\n              if (tempComponentState == null) {\n                // we did not find a component state\n                result = false;\n                break;\n              } else {\n                // we found a component state so we will update timestamp\n                tempTimestamp = tempComponentState.serverSaveTime;\n              }\n            } else if (functionName == 'isVisited') {\n              const nodeId = completionCriterion.nodeId;\n\n              // get the first visit event after the timestamp\n              const tempEvent = this.getVisitEventAfter(nodeId, tempTimestamp);\n\n              if (tempEvent == null) {\n                // we did not find a component state\n                result = false;\n                break;\n              } else {\n                // we found a component state so we will update timestamp\n                tempTimestamp = tempEvent.serverSaveTime;\n              }\n            }\n          }\n        }\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Get the first save component state after the given timestamp\n   * @param nodeId the node id of the component state\n   * @param componentId the component id of the component state\n   * @param timestamp look for a save component state after this timestamp\n   */\n  getComponentStateSavedAfter(nodeId, componentId, timestamp) {\n    const componentStates = this.studentData.componentStates;\n    if (componentStates != null) {\n      for (let tempComponentState of componentStates) {\n        if (tempComponentState != null &&\n            tempComponentState.serverSaveTime > timestamp &&\n            tempComponentState.nodeId === nodeId &&\n            tempComponentState.componentId === componentId) {\n          return tempComponentState;\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the first submit component state after the given timestamp\n   * @param nodeId the node id of the component state\n   * @param componentId the component id of the component state\n   * @param timestamp look for a submit component state after this timestamp\n   */\n  getComponentStateSubmittedAfter(nodeId, componentId, timestamp) {\n    const componentStates = this.studentData.componentStates;\n    if (componentStates != null) {\n      for (let tempComponentState of componentStates) {\n        if (tempComponentState != null &&\n            tempComponentState.serverSaveTime > timestamp &&\n            tempComponentState.nodeId === nodeId &&\n            tempComponentState.componentId === componentId &&\n            tempComponentState.isSubmit) {\n          return tempComponentState;\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the first visit event after the timestamp\n   */\n  getVisitEventAfter(nodeId, timestamp) {\n    const events = this.studentData.events;\n    if (events != null) {\n      for (let tempEvent of events) {\n        if (tempEvent != null &&\n            tempEvent.serverSaveTime > timestamp &&\n            tempEvent.nodeId === nodeId &&\n            tempEvent.event === 'nodeEntered') {\n          return tempEvent;\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get classmate student work\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param showClassmateWorkSource Where to get the work from.\n   * 'period' will get the classmate work only from the period the student is in.\n   * null will get work from the whole class (all periods).\n   *\n   * @return a promise that will return the component states from classmates\n   */\n  getClassmateStudentWork(nodeId, componentId, showClassmateWorkSource) {\n    const studentDataURL = this.ConfigService.getConfigParam('studentDataURL');\n    const httpParams = {};\n    httpParams.method = 'GET';\n    httpParams.url = studentDataURL;\n\n    const params = {};\n    params.runId = this.ConfigService.getRunId();\n    params.nodeId = nodeId;\n    params.componentId = componentId;\n    params.getStudentWork = true;\n    params.getEvents = false;\n    params.getAnnotations = false;\n    params.onlyGetLatest = true;\n\n    if (showClassmateWorkSource == 'period') {\n      params.periodId = this.ConfigService.getPeriodId();\n    }\n\n    httpParams.params = params;\n\n    return this.$http(httpParams).then((result) => {\n      const resultData = result.data;\n      if (resultData != null) {\n        return resultData.studentWorkList;\n      }\n      return [];\n    });\n  }\n\n  /**\n   * Get a student work from any student.\n   * @param id The student work id.\n   */\n  getStudentWorkById(id) {\n    const studentDataURL = this.ConfigService.getConfigParam('studentDataURL');\n    const httpParams = {};\n    httpParams.method = 'GET';\n    httpParams.url = studentDataURL;\n    const params = {};\n    params.runId = this.ConfigService.getRunId();\n    params.id = id;\n    params.getStudentWork = true;\n    params.getEvents = false;\n    params.getAnnotations = false;\n    params.onlyGetLatest = true;\n    httpParams.params = params;\n    return this.$http(httpParams).then((result) => {\n      const resultData = result.data;\n      if (resultData != null && resultData.studentWorkList.length > 0) {\n        return resultData.studentWorkList[0];\n      }\n      return null;\n    });\n  }\n\n  /**\n   * Get the max possible score for the project\n   * @returns the sum of the max scores for all the nodes in the project visible\n   * to the current workgroup or null if none of the visible components has max scores.\n   */\n  getMaxScore() {\n    let maxScore = null;\n    for (let p in this.nodeStatuses) {\n      if (this.nodeStatuses.hasOwnProperty(p)) {\n        let nodeStatus = this.nodeStatuses[p];\n        let nodeId = nodeStatus.nodeId;\n\n        if (nodeStatus.isVisible && !this.ProjectService.isGroupNode(nodeId)) {\n          // node is visible and is not a group\n          // get node max score\n          let nodeMaxScore = this.ProjectService.getMaxScoreForNode(nodeId);\n\n          if (nodeMaxScore) {\n            // there is a max score for the node, so add to total\n            // TODO geoffreykwan: trying to add to null?\n            maxScore += nodeMaxScore;\n          }\n        }\n      }\n    }\n    return maxScore;\n  }\n}\n\nStudentDataService.$inject = [\n  '$filter',\n  '$http',\n  '$injector',\n  '$q',\n  '$rootScope',\n  'AnnotationService',\n  'ConfigService',\n  'ProjectService',\n  'UtilService'\n];\n\nexport default StudentDataService;\n"]}
\ No newline at end of file
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StudentDataService {\n  constructor(\n      $filter,\n      $http,\n      $injector,\n      $q,\n      $rootScope,\n      AnnotationService,\n      ConfigService,\n      PlanningService,\n      ProjectService,\n      UtilService) {\n    this.$filter = $filter;\n    this.$http = $http;\n    this.$injector = $injector;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.AnnotationService = AnnotationService;\n    this.ConfigService = ConfigService;\n    this.PlanningService = PlanningService;\n    this.ProjectService = ProjectService;\n    this.UtilService = UtilService;\n    this.$translate = this.$filter('translate');\n    this.currentNode = null;\n    this.previousStep = null;\n    this.studentData = null;\n    this.stackHistory = [];  // array of node id's\n    this.visitedNodesHistory = [];\n    this.nodeStatuses = {};\n    this.runStatus = null;\n    this.maxScore = null;\n\n    this.maxPlanningNodeNumber = 0;\n\n    /*\n     * A counter to keep track of how many saveToServer requests we have\n     * made that we haven't received a response for yet. When this value\n     * goes back down to 0, we will send update the student status and then\n     * save it to the server.\n     */\n    this.saveToServerRequestCount = 0;\n\n    /*\n     * A dummy student work id that is used in preview mode when we simulate\n     * saving of student data.\n     */\n    this.dummyStudentWorkId = 1;\n\n    // listen for node status changes\n    this.$rootScope.$on('nodeStatusesChanged', (event, args) => {\n      // calculate active global annotations and group them by group name as needed\n      this.AnnotationService.calculateActiveGlobalAnnotationGroups();\n\n      // go through the global annotations and see if they can be un-globalized by checking if their criterias have been met.\n      let globalAnnotationGroups = this.AnnotationService.getActiveGlobalAnnotationGroups();\n      globalAnnotationGroups.map((globalAnnotationGroup) => {\n        let globalAnnotations = globalAnnotationGroup.annotations;\n        globalAnnotations.map((globalAnnotation) => {\n          if (globalAnnotation.data != null && globalAnnotation.data.isGlobal) {\n            let unGlobalizeConditional = globalAnnotation.data.unGlobalizeConditional;\n            let unGlobalizeCriteriaArray = globalAnnotation.data.unGlobalizeCriteria;\n            if (unGlobalizeCriteriaArray != null) {\n              if (unGlobalizeConditional === \"any\") {\n                // at least one criteria in unGlobalizeCriteriaArray must be satisfied in any order before un-globalizing this annotation\n                let anySatified = false;\n                for (let unGlobalizeCriteria of unGlobalizeCriteriaArray) {\n                  let unGlobalizeCriteriaResult = this.evaluateCriteria(unGlobalizeCriteria);\n                  anySatified = anySatified || unGlobalizeCriteriaResult;\n                }\n                if (anySatified) {\n                  globalAnnotation.data.unGlobalizedTimestamp = Date.parse(new Date());  // save when criteria was satisfied\n                  this.saveAnnotations([globalAnnotation]);  // save changes to server\n                }\n              } else if (unGlobalizeConditional === \"all\") {\n                // all criteria in unGlobalizeCriteriaArray must be satisfied in any order before un-globalizing this annotation\n                let allSatisfied = true;\n                for (let unGlobalizeCriteria of unGlobalizeCriteriaArray) {\n                  let unGlobalizeCriteriaResult = this.evaluateCriteria(unGlobalizeCriteria);\n                  allSatisfied = allSatisfied && unGlobalizeCriteriaResult;\n                }\n                if (allSatisfied) {\n                  globalAnnotation.data.unGlobalizedTimestamp = Date.parse(new Date());  // save when criteria was satisfied\n                  this.saveAnnotations([globalAnnotation]);  // save changes to server\n                }\n              }\n            }\n          }\n        });\n      })\n    });\n\n    /**\n     * Listen for the 'newAnnotationReceived' event which is fired when\n     * student receives a new annotation from the server\n     */\n    this.$rootScope.$on('newAnnotationReceived', (event, args) => {\n      if (args) {\n        // get the annotation that was saved to the server\n        let annotation = args.annotation;\n        this.handleAnnotationReceived(annotation);\n      }\n    });\n  }\n\n  retrieveStudentData() {\n    if (this.ConfigService.isPreview()) {\n      // initialize dummy student data\n      this.studentData = {};\n      this.studentData.componentStates = [];\n      this.studentData.nodeStates = [];\n      this.studentData.events = [];\n      this.studentData.annotations = [];\n      this.studentData.userName = this.$translate('PREVIEW_STUDENT');\n      this.studentData.userId = '0';\n\n      // set the annotations into the annotation service\n      this.AnnotationService.setAnnotations(this.studentData.annotations);\n\n      // populate the student history\n      this.populateHistories(this.studentData.events);\n\n      // update the node statuses\n      this.updateNodeStatuses();\n    } else {\n      const studentDataURL = this.ConfigService.getConfigParam('studentDataURL');\n\n      const httpParams = {};\n      httpParams.method = 'GET';\n      httpParams.url = studentDataURL;\n\n      const params = {};\n      params.workgroupId = this.ConfigService.getWorkgroupId();\n      params.runId = this.ConfigService.getRunId();\n      params.getStudentWork = true;\n      params.getEvents = true;\n      params.getAnnotations = true;\n      params.toWorkgroupId = this.ConfigService.getWorkgroupId();\n      httpParams.params = params;\n\n      // make the request for the student data\n      return this.$http(httpParams).then((result) => {\n        const resultData = result.data;\n        if (resultData != null) {\n          this.studentData = {};\n\n          // get student work\n          this.studentData.componentStates = [];\n          this.studentData.nodeStates = [];\n          const studentWorkList = resultData.studentWorkList;\n          for (let studentWork of studentWorkList) {\n            if (studentWork.componentId != null) {\n              this.studentData.componentStates.push(studentWork);\n            } else {\n              this.studentData.nodeStates.push(studentWork);\n            }\n          }\n\n          // Check to see if this Project contains any Planning activities\n          if (this.ProjectService.project.nodes != null && this.ProjectService.project.nodes.length > 0) {\n            // Overload/add new nodes based on student's work in the NodeState for the planning group.\n            for (let planningGroupNode of this.ProjectService.project.nodes) {\n              if (planningGroupNode.planning) {\n                let lastestNodeStateForPlanningGroupNode = this.getLatestNodeStateByNodeId(planningGroupNode.id);\n                if (lastestNodeStateForPlanningGroupNode != null) {\n                  let studentModifiedNodes = lastestNodeStateForPlanningGroupNode.studentData.nodes;\n                  if (studentModifiedNodes != null) {\n                    for (let studentModifiedNode of studentModifiedNodes) {\n                      let studentModifiedNodeId = studentModifiedNode.id;\n                      if (studentModifiedNode.planning) {\n                        // If this is a Planning Node that exists in the project, replace the one in the original project with this one.\n                        for (let n = 0; n < this.ProjectService.project.nodes.length; n++) {\n                          if (this.ProjectService.project.nodes[n].id === studentModifiedNodeId) {\n                            // Only overload the ids. This will allow authors to add more planningNodes during the run if needed.\n                            this.ProjectService.project.nodes[n].ids = studentModifiedNode.ids;\n                          }\n                        }\n                      } else {\n                        // Otherwise, this is an instance of a PlanningNode template, so just append it to the end of the Project.nodes\n                        this.ProjectService.project.nodes.push(studentModifiedNode);\n                      }\n                    }\n                  }\n                }\n              }\n            }\n            // Re-parse the project with the modified changes\n            this.ProjectService.parseProject();\n          }\n\n          this.studentData.events = resultData.events;\n          this.studentData.annotations = resultData.annotations;\n          this.AnnotationService.setAnnotations(this.studentData.annotations);\n          this.populateHistories(this.studentData.events);\n          this.updateNodeStatuses();\n        }\n\n        return this.studentData;\n      });\n    }\n  };\n\n  /**\n   * Retrieve the run status\n   */\n  retrieveRunStatus() {\n    if (this.ConfigService.isPreview()) {\n      this.runStatus = {};\n    } else {\n      const runStatusURL = this.ConfigService.getConfigParam('runStatusURL');\n      const runId = this.ConfigService.getConfigParam('runId');\n\n      const params = {\n        runId:runId\n      };\n\n      const httpParams = {};\n      httpParams.method = 'GET';\n      httpParams.headers = {'Content-Type': 'application/x-www-form-urlencoded'};\n      httpParams.url = runStatusURL;\n      httpParams.params = params;\n\n      return this.$http(httpParams).then((result) => {\n        if (result != null) {\n          const data = result.data;\n          if (data != null) {\n            this.runStatus = data;\n          }\n        }\n      });\n    }\n  }\n\n  getNodeStatuses() {\n    return this.nodeStatuses;\n  };\n\n  setNodeStatusByNodeId(nodeId, nodeStatus) {\n    if (nodeId != null && nodeStatus != null) {\n      const nodeStatuses = this.nodeStatuses;\n      if (nodeStatuses != null) {\n        nodeStatuses[nodeId] = nodeStatus;\n      }\n    }\n  }\n\n  getNodeStatusByNodeId(nodeId) {\n    const nodeStatuses = this.nodeStatuses;\n    if (nodeId != null && nodeStatuses != null) {\n      return nodeStatuses[nodeId];\n    }\n    return null;\n  };\n\n  updateNodeStatuses() {\n    let nodes = this.ProjectService.getNodes();\n    let planningNodes = this.PlanningService.getPlanningNodes();\n    const groups = this.ProjectService.getGroups();\n\n    if (nodes != null) {\n      if (planningNodes != null) {\n        nodes = nodes.concat(planningNodes);\n      }\n      for (let node of nodes) {\n        if (!this.ProjectService.isGroupNode(node.id)) {\n          this.updateNodeStatusByNode(node);\n        }\n      }\n    }\n\n    let group;\n    if (groups != null) {\n      for (let group of groups) {\n        group.depth = this.ProjectService.getNodeDepth(group.id);\n      }\n\n      // sort by descending depth order (need to calculate completion for lowest level groups first)\n      groups.sort(function(a, b) {\n        return b.depth - a.depth;\n      });\n\n      for (let group of groups) {\n        this.updateNodeStatusByNode(group);\n      }\n    }\n\n    // update max score\n    this.maxScore = this.getMaxScore();\n    this.$rootScope.$broadcast('nodeStatusesChanged');\n  };\n\n  /**\n   * Update the node status for a node\n   * @param node the node to update\n   */\n  updateNodeStatusByNode(node) {\n    if (node != null) {\n      const nodeId = node.id;\n      const tempNodeStatus = {};\n      tempNodeStatus.nodeId = nodeId;\n      tempNodeStatus.isVisitable = true;\n      tempNodeStatus.isCompleted = true;\n\n      // get the constraints that affect this node\n      let constraintsForNode = this.ProjectService.getConstraintsForNode(node);\n\n      if (this.ConfigService.getConfigParam('constraints') == false) {\n        /*\n         * constraints have been disabled, most likely because we are\n         * in preview without constraints mode\n         */\n        constraintsForNode = null;\n      }\n\n      if (constraintsForNode == null || constraintsForNode.length == 0) {\n        if (this.ProjectService.getFlattenedProjectAsNodeIds().indexOf(nodeId) == -1 &&\n          !this.ProjectService.isGroupNode(nodeId)) {\n          // there are no transitions to this node so it is not visible\n          tempNodeStatus.isVisible = false;\n          tempNodeStatus.isVisitable = true;\n        } else {\n          // this node does not have any constraints so it is clickable\n          tempNodeStatus.isVisible = true;\n          tempNodeStatus.isVisitable = true;\n        }\n      } else {\n        const isVisibleResults = [];\n        const isVisitableResults = [];\n\n        let result = false;\n        const firstResult = true;\n\n        for (let constraintForNode of constraintsForNode) {\n          if (constraintForNode != null) {\n            // evaluate the constraint to see if the node can be visited\n            const tempResult = this.evaluateConstraint(node, constraintForNode);\n\n            const action = constraintForNode.action;\n\n            if (action != null) {\n              if (action === 'makeThisNodeNotVisible') {\n                isVisibleResults.push(tempResult);\n              } else if (action === 'makeThisNodeNotVisitable') {\n                isVisitableResults.push(tempResult);\n              } else if (action === 'makeAllNodesAfterThisNotVisible') {\n                isVisibleResults.push(tempResult);\n              } else if (action === 'makeAllNodesAfterThisNotVisitable') {\n                isVisitableResults.push(tempResult);\n              } else if (action === 'makeAllOtherNodesNotVisible') {\n                isVisibleResults.push(tempResult);\n              } else if (action === 'makeAllOtherNodesNotVisitable') {\n                isVisitableResults.push(tempResult);\n              }\n            }\n          }\n        }\n\n        let isVisible = true;\n        let isVisitable = true;\n\n        for (let isVisibleResult of isVisibleResults) {\n          isVisible = isVisible && isVisibleResult;\n        }\n\n        for (let isVisitableResult of isVisitableResults) {\n          isVisitable = isVisitable && isVisitableResult;\n        }\n\n        tempNodeStatus.isVisible = isVisible;\n        tempNodeStatus.isVisitable = isVisitable;\n      }\n\n      tempNodeStatus.isCompleted = this.isCompleted(nodeId);\n      tempNodeStatus.isVisited = this.isNodeVisited(nodeId);\n\n      const nodeStatus = this.getNodeStatusByNodeId(nodeId);\n\n      if (nodeStatus == null) {\n        this.setNodeStatusByNodeId(nodeId, tempNodeStatus);\n      } else {\n        /*\n         * get the previous isCompleted value so that we can later check\n         * if it has changed\n         */\n        const previousIsCompletedValue = this.nodeStatuses[nodeId].isCompleted;\n\n        this.nodeStatuses[nodeId].isVisited = tempNodeStatus.isVisited;\n        this.nodeStatuses[nodeId].isVisible = tempNodeStatus.isVisible;\n        this.nodeStatuses[nodeId].isVisitable = tempNodeStatus.isVisitable;\n        this.nodeStatuses[nodeId].isCompleted = tempNodeStatus.isCompleted;\n\n        if (previousIsCompletedValue == false && tempNodeStatus.isCompleted) {\n          /*\n           * the node status just changed from false to true so we\n           * will fire an event\n           */\n          this.$rootScope.$broadcast('nodeCompleted', { nodeId: nodeId });\n        }\n      }\n\n      this.nodeStatuses[nodeId].progress = this.getNodeProgressById(nodeId);\n      this.nodeStatuses[nodeId].icon = this.ProjectService.getNodeIconByNodeId(nodeId);\n\n      // get the latest component state for the node\n      const latestComponentStatesForNode = this.getLatestComponentStateByNodeId(nodeId);\n      if (latestComponentStatesForNode != null) {\n        // set the latest component state timestamp into the node status\n        this.nodeStatuses[nodeId].latestComponentStateClientSaveTime = latestComponentStatesForNode.clientSaveTime;\n        this.nodeStatuses[nodeId].latestComponentStateServerSaveTime = latestComponentStatesForNode.serverSaveTime;\n      }\n    }\n  };\n\n  /**\n   * Evaluate the constraint\n   * @param node the node\n   * @param constraintForNode the constraint object\n   * @returns whether the node has satisfied the constraint\n   */\n  evaluateConstraint(node, constraintForNode) {\n    if (constraintForNode != null) {\n      const removalCriteria = constraintForNode.removalCriteria;\n      if (removalCriteria != null) {\n        return this.evaluateNodeConstraint(node, constraintForNode);\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Evaluate the guided navigation constraint\n   * @param node the node\n   * @param constraintForNode the constraint object\n   * @returns whether the node can be visited or not\n   */\n  evaluateGuidedNavigationConstraint(node, constraintForNode) {\n    let result = false;\n    if (node != null) {\n      const nodeId = node.id;\n\n      if (this.isNodeVisited(nodeId)) {\n        // the node has been visited before so it should be clickable\n        result = true;\n      } else {\n        // get all the nodes that have been visited\n        const visitedNodes = this.getVisitedNodesHistory();\n\n        let transitionsToNodeId = [];\n\n        for (let visitedNodeId of visitedNodes) {\n          // get the transitions from the visited node to the node status node\n          const transitions = this.ProjectService.getTransitionsByFromAndToNodeId(visitedNodeId, nodeId);\n\n          // TODO: check if the transition can be used by the student\n\n          // concat the node ids\n          transitionsToNodeId = transitionsToNodeId.concat(transitions);\n        }\n\n        if (transitionsToNodeId != null && transitionsToNodeId.length > 0) {\n          // there is a transition between the current node and the node status node\n\n          /*\n           * there are transitions from the current node to the node status node so\n           * the node status node is clickable\n           */\n          result = true;\n        } else {\n          /*\n           * there is no transition between the visited nodes and the node status node\n           * so we will set the node to be not clickable\n           */\n          result = false;\n        }\n\n        if (this.ProjectService.isStartNode(node)) {\n          /*\n           * the node is the start node of the project or a start node of a group\n           * so we will make it clickable\n           */\n          result = true;\n        }\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Evaluate the node constraint\n   * @param node the node\n   * @param constraintForNode the constraint object\n   * @returns whether the node satisifies the constraint\n   */\n  evaluateNodeConstraint(node, constraintForNode) {\n    let result = false;\n\n    if (constraintForNode != null) {\n      const removalCriteria = constraintForNode.removalCriteria;\n      const removalConditional = constraintForNode.removalConditional;\n      if (removalCriteria == null) {\n        result = true;\n      } else {\n        let firstResult = true;\n        for (let tempCriteria of removalCriteria) {\n          if (tempCriteria != null) {\n            // evaluate the criteria\n            const tempResult = this.evaluateCriteria(tempCriteria);\n\n            if (firstResult) {\n              // this is the first criteria in this for loop\n              result = tempResult;\n              firstResult = false;\n            } else {\n              // this is not the first criteria\n\n              if (removalConditional === 'any') {\n                // any of the criteria can be true to remove the constraint\n                result = result || tempResult;\n              } else {\n                // all the criteria need to be true to remove the constraint\n                result = result && tempResult;\n              }\n            }\n          }\n        }\n      }\n    }\n    return result;\n  };\n\n\n  /**\n   * Evaluate the criteria\n   * @param criteria the criteria\n   * @returns whether the criteria is satisfied or not\n   */\n  evaluateCriteria(criteria) {\n    let result = false;\n    if (criteria != null) {\n      const functionName = criteria.name;\n      if (functionName == null) {\n\n      } else if (functionName === 'branchPathTaken') {\n        result = this.evaluateBranchPathTakenCriteria(criteria);\n      } else if (functionName === 'isVisible') {\n\n      } else if (functionName === 'isVisitable') {\n\n      } else if (functionName === 'isVisited') {\n        result = this.evaluateIsVisitedCriteria(criteria);\n      } else if (functionName === 'isVisitedAfter') {\n        result = this.evaluateIsVisitedAfterCriteria(criteria);\n      } else if (functionName === 'isRevisedAfter') {\n        result = this.evaluateIsRevisedAfterCriteria(criteria);\n      } else if (functionName === 'isVisitedAndRevisedAfter') {\n        result = this.evaluateIsVisitedAndRevisedAfterCriteria(criteria);\n      } else if (functionName === 'isCompleted') {\n        result = this.evaluateIsCompletedCriteria(criteria);\n      } else if (functionName === 'isCorrect') {\n        result = this.evaluateIsCorrectCriteria(criteria);\n      } else if (functionName === 'choiceChosen') {\n        result = this.evaluateChoiceChosenCriteria(criteria);\n      } else if (functionName === 'isPlanningActivityCompleted') {\n        result = this.evaluateIsPlanningActivityCompletedCriteria(criteria);\n      } else if (functionName === 'score') {\n        result = this.evaluateScoreCriteria(criteria);\n      } else if (functionName === 'usedXSubmits') {\n        result = this.evaluateUsedXSubmitsCriteria(criteria);\n      } else if (functionName === 'wroteXNumberOfWords') {\n        result = this.evaluateNumberOfWordsWrittenCriteria(criteria);\n      } else if (functionName === '') {\n\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Check if the isCompleted criteria was satisfied\n   * @param criteria an isCompleted criteria\n   * @returns whether the criteria was satisfied or not\n   */\n  evaluateIsCompletedCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      const params = criteria.params;\n      const nodeId = params.nodeId;\n      return this.isCompleted(nodeId);\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isCorrect criteria was satisfied\n   * @param criteria an isCorrect criteria\n   * @returns whether the criteria was satisfied or not\n   */\n  evaluateIsCorrectCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      const params = criteria.params;\n      const nodeId = params.nodeId;\n      const componentId = params.componentId;\n\n      if (nodeId != null && componentId != null) {\n        const componentStates = this.getComponentStatesByNodeIdAndComponentId(nodeId, componentId);\n        if (componentStates != null) {\n          for (let componentState of componentStates) {\n            if (componentState != null) {\n              const studentData = componentState.studentData;\n              if (studentData != null) {\n                if (studentData.isCorrect) {\n                  return true;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isPlanningActivityCompleted criteria was satisfied\n   * @param criteria a isPlanningActivityCompleted criteria\n   * @returns whether the criteria was satisfied or not\n   */\n  evaluateIsPlanningActivityCompletedCriteria(criteria) {\n    let result = false;\n    if (criteria != null && criteria.params != null) {\n      const params = criteria.params;\n\n      // get the group id\n      const nodeId = params.nodeId;\n\n      // get the number of planning steps the student needs to create\n      const planningStepsCreated = params.planningStepsCreated;\n\n      // get whether the student needs to complete all the steps in the activity\n      const planningStepsCompleted = params.planningStepsCompleted;\n\n      let planningStepsCreatedSatisfied = false;\n      let planningStepsCompletedSatisfied = false;\n\n      let planningNodes = [];\n\n      if (planningStepsCreated == null) {\n        // there is no value set so we will regard it as satisfied\n        planningStepsCreatedSatisfied = true;\n      } else {\n        /*\n         * there is a value for number of planning steps that need to be created\n         * so we will check if the student created enough planning steps\n         */\n\n        // get the node states for the activity\n        const nodeStates = this.getNodeStatesByNodeId(nodeId);\n\n        if (nodeStates != null) {\n          for (let ns = nodeStates.length - 1; ns >= 0; ns--) {\n            let planningStepCount = 0;\n            const nodeState = nodeStates[ns];\n            if (nodeState != null) {\n              const studentData = nodeState.studentData;\n              if (studentData != null) {\n                const nodes = studentData.nodes;\n                if (nodes != null) {\n                  for (let node of nodes) {\n                    if (node != null) {\n                      if (node.type === 'node' && node.planningNodeTemplateId != null) {\n                        // we have found a planning step the student created\n                        planningStepCount++;\n                      }\n                    }\n                  }\n\n                  if (planningStepCount >= planningStepsCreated) {\n                    // the student has created a sufficient number of planning steps\n                    planningStepsCreatedSatisfied = true;\n                    planningNodes = nodes;\n                    break;\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n\n      if (planningStepsCompleted == null) {\n        planningStepsCompletedSatisfied = true;\n      } else {\n        /*\n         * check if the activity is completed. this checks if all\n         * the children of the activity are completed.\n         */\n        if (this.isCompleted(nodeId)) {\n          planningStepsCompletedSatisfied = true;\n        }\n      }\n\n      if (planningStepsCreatedSatisfied && planningStepsCompletedSatisfied) {\n        result = true;\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Check if this branchPathTaken criteria was satisfied\n   * @param criteria a branchPathTaken criteria\n   * @returns whether the branchPathTaken criteria was satisfied\n   */\n  evaluateBranchPathTakenCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      // get the expected from and to node ids\n      const expectedFromNodeId = criteria.params.fromNodeId;\n      const expectedToNodeId = criteria.params.toNodeId;\n\n      // get all the branchPathTaken events from the from node id\n      const branchPathTakenEvents = this.getBranchPathTakenEventsByNodeId(expectedFromNodeId);\n\n      if (branchPathTakenEvents != null) {\n        for (let branchPathTakenEvent of branchPathTakenEvents) {\n          if (branchPathTakenEvent != null) {\n            const data = branchPathTakenEvent.data;\n            if (data != null) {\n              // get the from and to node ids of the event\n              const fromNodeId = data.fromNodeId;\n              const toNodeId = data.toNodeId;\n              if (expectedFromNodeId === fromNodeId && expectedToNodeId === toNodeId) {\n                // the from and to node ids match the ones we are looking for\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Check if the isVisited criteria was satisfied\n   * @param criteria the isVisited criteria\n   * @returns whether the node id is visited\n   */\n  evaluateIsVisitedCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      const nodeId = criteria.params.nodeId;\n      const events = this.studentData.events;\n      if (events != null) {\n        for (let event of events) {\n          if (event != null) {\n            if (nodeId == event.nodeId && 'nodeEntered' === event.event) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isVisitedAfter criteria was satisfied\n   * @param criteria the isVisitedAfter criteria\n   * @returns whether the node id is visited after the criteriaCreatedTimestamp\n   */\n  evaluateIsVisitedAfterCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      let isVisitedAfterNodeId = criteria.params.isVisitedAfterNodeId;\n      let criteriaCreatedTimestamp = criteria.params.criteriaCreatedTimestamp;\n\n      let events = this.studentData.events;\n      if (events != null) {\n        for (let event of events) {\n          if (event != null) {\n            if (isVisitedAfterNodeId == event.nodeId &&\n              'nodeEntered' === event.event &&\n              event.clientSaveTime > criteriaCreatedTimestamp) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isRevisedAfter criteria was satisfied\n   * @param criteria the isRevisedAfter criteria\n   * @returns whether the specified node&component was revisted after the criteriaCreatedTimestamp\n   */\n  evaluateIsRevisedAfterCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      let isRevisedAfterNodeId = criteria.params.isRevisedAfterNodeId;\n      let isRevisedAfterComponentId = criteria.params.isRevisedAfterComponentId;\n      let criteriaCreatedTimestamp = criteria.params.criteriaCreatedTimestamp;\n\n      // the student has entered the node after the criteriaCreatedTimestamp.\n      // now check if student has revised the work after this event\n      let latestComponentStateForRevisedComponent = this.getLatestComponentStateByNodeIdAndComponentId(isRevisedAfterNodeId, isRevisedAfterComponentId);\n      if (latestComponentStateForRevisedComponent.clientSaveTime > criteriaCreatedTimestamp) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the isVisitedAndRevisedAfter criteria was satisfied\n   * @param criteria the isVisitedAndRevisedAfter criteria\n   * @returns whether the specified nodes were visited and specified node&component was revisted after the criteriaCreatedTimestamp\n   */\n  evaluateIsVisitedAndRevisedAfterCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      // get the node id we want to check if was visited\n      let isVisitedAfterNodeId = criteria.params.isVisitedAfterNodeId;\n      let isRevisedAfterNodeId = criteria.params.isRevisedAfterNodeId;\n      let isRevisedAfterComponentId = criteria.params.isRevisedAfterComponentId;\n      let criteriaCreatedTimestamp = criteria.params.criteriaCreatedTimestamp;\n\n      let events = this.studentData.events;\n      if (events != null) {\n        for (let event of events) {\n          if (event != null) {\n            if (isVisitedAfterNodeId == event.nodeId && 'nodeEntered' === event.event && event.clientSaveTime > criteriaCreatedTimestamp) {\n              // the student has entered the node after the criteriaCreatedTimestamp.\n              // now check if student has revised the work after this event\n              let latestComponentStateForRevisedComponent = this.getLatestComponentStateByNodeIdAndComponentId(isRevisedAfterNodeId, isRevisedAfterComponentId);\n              if (latestComponentStateForRevisedComponent.clientSaveTime > event.clientSaveTime) {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get all the branchPathTaken events by node id\n   * @params fromNodeId the from node id\n   * @returns all the branchPathTaken events from the given node id\n   */\n  getBranchPathTakenEventsByNodeId(fromNodeId) {\n    const branchPathTakenEvents = [];\n    const events = this.studentData.events;\n    if (events != null) {\n      for (let event of events) {\n        if (event != null) {\n          if (fromNodeId === event.nodeId && 'branchPathTaken' === event.event) {\n            // we have found a branchPathTaken event from the from node id\n            branchPathTakenEvents.push(event);\n          }\n        }\n      }\n    }\n    return branchPathTakenEvents;\n  }\n\n  /**\n   * Evaluate the choice chosen criteria\n   * @param criteria the criteria to evaluate\n   * @returns a boolean value whether the criteria was satisfied or not\n   */\n  evaluateChoiceChosenCriteria(criteria) {\n    const serviceName = 'MultipleChoiceService';  // Assume MC component.\n    if (this.$injector.has(serviceName)) {\n      const service = this.$injector.get(serviceName);\n      return service.choiceChosen(criteria);\n    }\n    return false;\n  };\n\n  /**\n   * Evaluate the score criteria\n   * @param criteria the criteria to evaluate\n   * @returns a boolean value whether the criteria was satisfied or not\n   */\n  evaluateScoreCriteria(criteria) {\n    const params = criteria.params;\n    if (params != null) {\n      const nodeId = params.nodeId;\n      const componentId = params.componentId;\n      const scores = params.scores;\n      const workgroupId = this.ConfigService.getWorkgroupId();\n      const scoreType = 'any';\n      if (nodeId != null && componentId != null && scores != null) {\n        const latestScoreAnnotation = this.AnnotationService.getLatestScoreAnnotation(nodeId, componentId, workgroupId, scoreType);\n        if (latestScoreAnnotation != null) {\n          const scoreValue = this.AnnotationService.getScoreValueFromScoreAnnotation(latestScoreAnnotation);\n\n          // check if the score value matches what the criteria is looking for. works when scores is array of integers or integer strings\n          if (scores.indexOf(scoreValue) != -1 || (scoreValue != null && scores.indexOf(scoreValue.toString()) != -1)) {\n            /*\n             * the student has received a score that matches a score\n             * we're looking for\n             */\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Evaluate the used x submits criteria which requires the student to submit\n   * at least x number of times.\n   * @param criteria the criteria to evaluate\n   * @returns a boolean value whether the student submitted at least x number\n   * of times\n   */\n  evaluateUsedXSubmitsCriteria(criteria) {\n    const params = criteria.params;\n    if (params != null) {\n      const nodeId = params.nodeId;\n      const componentId = params.componentId;\n      const requiredSubmitCount = params.requiredSubmitCount;\n\n      if (nodeId != null && componentId != null) {\n        const componentStates = this.getComponentStatesByNodeIdAndComponentId(nodeId, componentId);\n        if (componentStates != null) {\n          // counter for manually counting the component states with isSubmit=true\n          let manualSubmitCounter = 0;\n\n          // counter for remembering the highest submitCounter value found in studentData objects\n          let highestSubmitCounter = 0;\n\n          /*\n           * We are counting with two submit counters for backwards compatibility.\n           * Some componentStates only have isSubmit=true and do not keep an\n           * updated submitCounter for the number of submits.\n           */\n\n          for (let componentState of componentStates) {\n            if (componentState != null) {\n              if (componentState.isSubmit) {\n                manualSubmitCounter++;\n              }\n              const studentData = componentState.studentData;\n              if (studentData != null) {\n                if (studentData.submitCounter != null) {\n                  if (studentData.submitCounter > highestSubmitCounter) {\n                    /*\n                     * the submit counter in the student data is higher\n                     * than we have previously seen\n                     */\n                    highestSubmitCounter = studentData.submitCounter;\n                  }\n                }\n              }\n            }\n          }\n\n          if (manualSubmitCounter >= requiredSubmitCount || highestSubmitCounter >= requiredSubmitCount) {\n            // the student submitted the required number of times\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Evaluate the number of words written criteria.\n   * @param criteria The criteria to evaluate.\n   * @return A boolean value whether the student wrote the required number of\n   * words.\n   */\n  evaluateNumberOfWordsWrittenCriteria(criteria) {\n    if (criteria != null && criteria.params != null) {\n      const params = criteria.params;\n      const nodeId = params.nodeId;\n      const componentId = params.componentId;\n      const requiredNumberOfWords = params.requiredNumberOfWords;\n\n      if (nodeId != null && componentId != null) {\n        const componentState = this.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n        if (componentState != null) {\n          const studentData = componentState.studentData;\n          const response = studentData.response;\n          const numberOfWords = this.UtilService.wordCount(response);\n          if (numberOfWords >= requiredNumberOfWords) {\n            return true;\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Populate the stack history and visited nodes history\n   * @param events the events\n   */\n  populateHistories(events) {\n    this.stackHistory = [];\n    this.visitedNodesHistory = [];\n\n    if (events != null) {\n      for (let event of events) {\n        if (event != null && event.event === 'nodeEntered') {\n          this.updateStackHistory(event.nodeId);\n          this.updateVisitedNodesHistory(event.nodeId);\n        }\n      }\n    }\n  };\n\n  getStackHistoryAtIndex(index) {\n    if (index < 0) {\n      index = this.stackHistory.length + index;\n    }\n    if (this.stackHistory != null && this.stackHistory.length > 0) {\n      return this.stackHistory[index];\n    }\n    return null;\n  };\n\n  getStackHistory() {\n    return this.stackHistory;\n  };\n\n  updateStackHistory(nodeId) {\n    const indexOfNodeId = this.stackHistory.indexOf(nodeId);\n    if (indexOfNodeId === -1) {\n      this.stackHistory.push(nodeId);\n    } else {\n      this.stackHistory.splice(indexOfNodeId + 1, this.stackHistory.length);\n    }\n  };\n\n  updateVisitedNodesHistory(nodeId) {\n    const indexOfNodeId = this.visitedNodesHistory.indexOf(nodeId);\n    if (indexOfNodeId === -1) {\n      this.visitedNodesHistory.push(nodeId);\n    }\n  };\n\n  getVisitedNodesHistory() {\n    return this.visitedNodesHistory;\n  };\n\n  isNodeVisited(nodeId) {\n    const visitedNodesHistory = this.visitedNodesHistory;\n    if (visitedNodesHistory != null) {\n      const indexOfNodeId = visitedNodesHistory.indexOf(nodeId);\n      if (indexOfNodeId !== -1) {\n        return true;\n      }\n    }\n    return false;\n  };\n\n  createComponentState() {\n    const componentState = {};\n    componentState.timestamp = Date.parse(new Date());\n    return componentState;\n  };\n\n  addComponentState(componentState) {\n    if (this.studentData != null && this.studentData.componentStates != null) {\n      this.studentData.componentStates.push(componentState);\n    }\n  };\n\n  addNodeState(nodeState) {\n    if (this.studentData != null && this.studentData.nodeStates != null) {\n      this.studentData.nodeStates.push(nodeState);\n    }\n  };\n\n  /**\n   * Returns all NodeStates\n   * @returns Array of all NodeStates\n   */\n  getNodeStates() {\n    if (this.studentData != null && this.studentData.nodeStates != null) {\n      return this.studentData.nodeStates;\n    }\n    return [];\n  };\n\n  /**\n   * Get all NodeStates for a specific node\n   * @param nodeId id of node\n   * @returns Array of NodeStates for the specified node\n   */\n  getNodeStatesByNodeId(nodeId) {\n    const nodeStatesByNodeId = [];\n    if (this.studentData != null && this.studentData.nodeStates != null) {\n      const nodeStates = this.studentData.nodeStates;\n      for (let nodeState of nodeStates) {\n        if (nodeState != null) {\n          const tempNodeId = nodeState.nodeId;\n          if (nodeId === tempNodeId) {\n            nodeStatesByNodeId.push(nodeState);\n          }\n        }\n      }\n    }\n    return nodeStatesByNodeId;\n  };\n\n  addEvent(event) {\n    if (this.studentData != null && this.studentData.events != null) {\n      this.studentData.events.push(event);\n    }\n  };\n\n  addAnnotation(annotation) {\n    if (this.studentData != null && this.studentData.annotations != null) {\n      this.studentData.annotations.push(annotation);\n    }\n  };\n\n  handleAnnotationReceived(annotation) {\n    this.studentData.annotations.push(annotation);\n    if (annotation.notebookItemId) {\n      this.$rootScope.$broadcast('notebookItemAnnotationReceived', {annotation: annotation});\n    } else {\n      this.$rootScope.$broadcast('annotationReceived', {annotation: annotation});\n    }\n  }\n\n  saveComponentEvent(component, category, event, data) {\n    if (component == null || category == null || event == null) {\n      alert(this.$translate('STUDENT_DATA_SERVICE_SAVE_COMPONENT_EVENT_COMPONENT_CATEGORY_EVENT_ERROR'));\n      return;\n    }\n    const context = \"Component\";\n    const nodeId = component.nodeId;\n    const componentId = component.componentId;\n    const componentType = component.componentType;\n    if (nodeId == null || componentId == null || componentType == null) {\n      alert(this.$translate('STUDENT_DATA_SERVICE_SAVE_COMPONENT_EVENT_NODE_ID_COMPONENT_ID_COMPONENT_TYPE_ERROR'));\n      return;\n    }\n    this.saveEvent(context, nodeId, componentId, componentType, category, event, data);\n  };\n\n  saveVLEEvent(nodeId, componentId, componentType, category, event, data) {\n    if (category == null || event == null) {\n      alert(this.$translate('STUDENT_DATA_SERVICE_SAVE_VLE_EVENT_CATEGORY_EVENT_ERROR'));\n      return;\n    }\n    const context = \"VLE\";\n    this.saveEvent(context, nodeId, componentId, componentType, category, event, data);\n  };\n\n  saveEvent(context, nodeId, componentId, componentType, category, event, data) {\n    const events = [];\n    const newEvent = this.createNewEvent();\n    newEvent.context = context;\n    newEvent.nodeId = nodeId;\n    newEvent.componentId = componentId;\n    newEvent.type = componentType;\n    newEvent.category = category;\n    newEvent.event = event;\n    newEvent.data = data;\n    events.push(newEvent);\n    const componentStates = null;\n    const nodeStates = null;\n    const annotations = null;\n    this.saveToServer(componentStates, nodeStates, events, annotations);\n  };\n\n  /**\n   * Create a new empty event\n   * @return a new empty event\n   */\n  createNewEvent() {\n    const event = {};\n    event.projectId = this.ConfigService.getProjectId();\n    event.runId = this.ConfigService.getRunId();\n    event.periodId = this.ConfigService.getPeriodId();\n    event.workgroupId = this.ConfigService.getWorkgroupId();\n    event.clientSaveTime = Date.parse(new Date());\n    return event;\n  };\n\n  saveNodeStates(nodeStates) {\n    const componentStates = null;\n    const events = null;\n    const annotations = null;\n    this.saveToServer(componentStates, nodeStates, events, annotations);\n  };\n\n\n  saveAnnotations(annotations) {\n    const componentStates = null;\n    const nodeStates = null;\n    const events = null;\n    this.saveToServer(componentStates, nodeStates, events, annotations);\n  };\n\n  saveToServer(componentStates, nodeStates, events, annotations) {\n    /*\n     * increment the request count since we are about to save data\n     * to the server\n     */\n    this.saveToServerRequestCount += 1;\n\n    // merge componentStates and nodeStates into StudentWork before posting\n    const studentWorkList = [];\n    if (componentStates != null && componentStates.length > 0) {\n      for (let componentState of componentStates) {\n        if (componentState != null) {\n          componentState.requestToken = this.UtilService.generateKey(); // use this to keep track of unsaved componentStates.\n          this.addComponentState(componentState);\n          studentWorkList.push(componentState);\n        }\n      }\n    }\n\n    if (nodeStates != null && nodeStates.length > 0) {\n      for (let nodeState of nodeStates) {\n        if (nodeState != null) {\n          nodeState.requestToken = this.UtilService.generateKey(); // use this to keep track of unsaved componentStates.\n          this.addNodeState(nodeState);\n          studentWorkList.push(nodeState);\n        }\n      }\n    }\n\n    if (events != null && events.length > 0) {\n      for (let event of events) {\n        if (event != null) {\n          event.requestToken = this.UtilService.generateKey(); // use this to keep track of unsaved events.\n          this.addEvent(event);\n        }\n      }\n    } else {\n      events = [];\n    }\n\n    if (annotations != null && annotations.length > 0) {\n      for (let annotation of annotations) {\n        if (annotation != null) {\n          annotation.requestToken = this.UtilService.generateKey(); // use this to keep track of unsaved annotations.\n          if (annotation.id == null) {\n            // add to local annotation array if this annotation has not been saved to the server before.\n            this.addAnnotation(annotation);\n          }\n        }\n      }\n    } else {\n      annotations = [];\n    }\n\n    if (this.ConfigService.isPreview()) {\n      const savedStudentDataResponse = {\n        studentWorkList: studentWorkList,\n        events: events,\n        annotations: annotations\n      };\n\n      // if we're in preview, don't make any request to the server but pretend we did\n      this.saveToServerSuccess(savedStudentDataResponse);\n      let deferred = this.$q.defer();\n      deferred.resolve(savedStudentDataResponse);\n      return deferred.promise;\n    } else {\n      // set the workgroup id and run id\n      const params = {};\n      params.projectId = this.ConfigService.getProjectId();\n      params.runId = this.ConfigService.getRunId();\n      params.workgroupId = this.ConfigService.getWorkgroupId();\n      params.studentWorkList = angular.toJson(studentWorkList);\n      params.events = angular.toJson(events);\n      params.annotations = angular.toJson(annotations);\n\n      // get the url to POST the student data\n      const httpParams = {};\n      httpParams.method = 'POST';\n      httpParams.url = this.ConfigService.getConfigParam('studentDataURL');\n      httpParams.headers = {'Content-Type': 'application/x-www-form-urlencoded'};\n      httpParams.data = $.param(params);\n\n      // make the request to post the student data\n      return this.$http(httpParams).then(\n        result => {\n          // get the local references to the component states that were posted and set their id and serverSaveTime\n          if (result != null && result.data != null) {\n            const savedStudentDataResponse = result.data;\n\n            this.saveToServerSuccess(savedStudentDataResponse);\n\n            return savedStudentDataResponse;\n          }\n        }, result => {\n          // a server error occured\n\n          /*\n           * decrement the request count since this request failed\n           * but is now completed\n           */\n          this.saveToServerRequestCount -= 1;\n\n          return null;\n        }\n      );\n    }\n  };\n\n  saveToServerSuccess(savedStudentDataResponse) {\n    // set dummy serverSaveTime for use if we're in preview mode\n    let serverSaveTime = Date.parse(new Date());\n\n    // handle saved studentWork\n    if (savedStudentDataResponse.studentWorkList) {\n      let savedStudentWorkList = savedStudentDataResponse.studentWorkList;\n      let localStudentWorkList = this.studentData.componentStates;\n      if (this.studentData.nodeStates) {\n        localStudentWorkList = localStudentWorkList.concat(this.studentData.nodeStates);\n      }\n\n      // set the id and serverSaveTime in the local studentWorkList\n      for (let savedStudentWork of savedStudentWorkList) {\n        /*\n         * loop through all the student work that were posted\n         * to find the one with the matching request token\n         */\n        for (let l = localStudentWorkList.length - 1; l >= 0; l--) {\n          const localStudentWork = localStudentWorkList[l];\n          if (localStudentWork.requestToken &&\n            localStudentWork.requestToken === savedStudentWork.requestToken) {\n            localStudentWork.id = savedStudentWork.id;\n            localStudentWork.serverSaveTime = savedStudentWork.serverSaveTime ? savedStudentWork.serverSaveTime : serverSaveTime;\n            localStudentWork.requestToken = null; // requestToken is no longer needed.\n\n            if (this.ConfigService.getMode() == \"preview\" && localStudentWork.id == null) {\n              /*\n               * we are in preview mode so we will set a dummy\n               * student work id into the student work\n               */\n              localStudentWork.id = this.dummyStudentWorkId;\n\n              /*\n               * increment the dummy student work id for the next\n               * student work\n               */\n              this.dummyStudentWorkId++;\n            }\n\n            this.$rootScope.$broadcast('studentWorkSavedToServer', {studentWork: localStudentWork});\n            break;\n          }\n        }\n      }\n    }\n    // handle saved events\n    if (savedStudentDataResponse.events) {\n      const savedEvents = savedStudentDataResponse.events;\n\n      const localEvents = this.studentData.events;\n\n      // set the id and serverSaveTime in the local event\n      for (let savedEvent of savedEvents) {\n        /*\n         * loop through all the events that were posted\n         * to find the one with the matching request token\n         */\n        for (let l = localEvents.length - 1; l >= 0; l--) {\n          const localEvent = localEvents[l];\n          if (localEvent.requestToken &&\n            localEvent.requestToken === savedEvent.requestToken) {\n            localEvent.id = savedEvent.id;\n            localEvent.serverSaveTime = savedEvent.serverSaveTime ? savedEvent.serverSaveTime : serverSaveTime;\n            localEvent.requestToken = null; // requestToken is no longer needed.\n\n            this.$rootScope.$broadcast('eventSavedToServer', {event: localEvent});\n            break;\n          }\n        }\n      }\n    }\n\n    // handle saved annotations\n    if (savedStudentDataResponse.annotations) {\n      const savedAnnotations = savedStudentDataResponse.annotations;\n      const localAnnotations = this.studentData.annotations;\n\n      // set the id and serverSaveTime in the local annotation\n      for (let savedAnnotation of savedAnnotations) {\n        /*\n         * loop through all the events that were posted\n         * to find the one with the matching request token\n         */\n        for (let l = localAnnotations.length - 1; l >= 0; l--) {\n          const localAnnotation = localAnnotations[l];\n          if (localAnnotation.requestToken &&\n            localAnnotation.requestToken === savedAnnotation.requestToken) {\n            localAnnotation.id = savedAnnotation.id;\n            localAnnotation.serverSaveTime = savedAnnotation.serverSaveTime ? savedAnnotation.serverSaveTime : serverSaveTime;\n            localAnnotation.requestToken = null; // requestToken is no longer needed.\n\n            this.$rootScope.$broadcast('annotationSavedToServer', {annotation: localAnnotation});\n            break;\n          }\n        }\n      }\n    }\n\n    /*\n     * decrement the request count since we have received a response to\n     * one of our save requests\n     */\n    this.saveToServerRequestCount -= 1;\n\n    if (this.saveToServerRequestCount == 0) {\n      /*\n       * we have received the reponse to all of the saveToServer requests\n       * so we will now update the student status and save it to the\n       * server\n       */\n      this.updateNodeStatuses();\n      this.saveStudentStatus();\n    }\n  };\n\n  /**\n   * POSTs student status to server\n   * Returns a promise of the POST request\n   */\n  saveStudentStatus() {\n    if (!this.ConfigService.isPreview()) {\n      const studentStatusURL = this.ConfigService.getStudentStatusURL();\n      if (studentStatusURL != null) {\n        const runId = this.ConfigService.getRunId();\n        const periodId = this.ConfigService.getPeriodId();\n        const workgroupId = this.ConfigService.getWorkgroupId();\n        const currentNodeId = this.getCurrentNodeId();\n        const nodeStatuses = this.getNodeStatuses();\n        const projectCompletion = this.getProjectCompletion();\n\n        // create the JSON that will be saved to the database\n        const studentStatusJSON = {};\n        studentStatusJSON.runId = runId;\n        studentStatusJSON.periodId = periodId;\n        studentStatusJSON.workgroupId = workgroupId;\n        studentStatusJSON.currentNodeId = currentNodeId;\n        studentStatusJSON.nodeStatuses = nodeStatuses;\n        studentStatusJSON.projectCompletion = projectCompletion;\n\n        const status = angular.toJson(studentStatusJSON);\n        const studentStatusParams = {};\n        studentStatusParams.runId = runId;\n        studentStatusParams.periodId = periodId;\n        studentStatusParams.workgroupId = workgroupId;\n        studentStatusParams.status = status;\n\n        const httpParams = {};\n        httpParams.method = 'POST';\n        httpParams.url = studentStatusURL;\n        httpParams.headers = {'Content-Type': 'application/x-www-form-urlencoded'};\n        httpParams.data = $.param(studentStatusParams);\n\n        return this.$http(httpParams).then(\n          result => {\n            return true;\n          }, result => {\n            return false;\n          }\n        );\n      }\n    }\n  };\n\n  retrieveComponentStates(runId, periodId, workgroupId) {\n\n  };\n\n  getLatestComponentState() {\n    const studentData = this.studentData;\n    if (studentData != null) {\n      const componentStates = studentData.componentStates;\n      if (componentStates != null) {\n        return componentStates[componentStates.length - 1];\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Check whether the component has unsubmitted work\n   * @return boolean whether or not there is unsubmitted work\n   */\n  isComponentSubmitDirty() {\n    let latestComponentState = this.getLatestComponentState();\n    if (latestComponentState && !latestComponentState.isSubmit) {\n      return true;\n    }\n    return false;\n  };\n\n  /**\n   * Get the latest NodeState for the specified node id\n   * @param nodeId the node id\n   * @return the latest node state with the matching node id or null if none are found\n   */\n  getLatestNodeStateByNodeId(nodeId) {\n    let allNodeStatesByNodeId = this.getNodeStatesByNodeId(nodeId);\n    if (allNodeStatesByNodeId != null && allNodeStatesByNodeId.length > 0) {\n      return allNodeStatesByNodeId[allNodeStatesByNodeId.length - 1];\n    }\n    return null;\n  };\n\n  /**\n   * Get the latest component state for the given node id and component\n   * id.\n   * @param nodeId the node id\n   * @param componentId the component id (optional)\n   * @return the latest component state with the matching node id and\n   * component id or null if none are found\n   */\n  getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId) {\n    if (nodeId) {\n      const studentData = this.studentData;\n      if (studentData) {\n        // get the component states\n        const componentStates = studentData.componentStates;\n        if (componentStates) {\n          for (let c = componentStates.length - 1; c >= 0; c--) {\n            const componentState = componentStates[c];\n            if (componentState) {\n              const componentStateNodeId = componentState.nodeId;\n              if (nodeId === componentStateNodeId) {\n                if (componentId) {\n                  const componentStateComponentId = componentState.componentId;\n                  if (componentId === componentStateComponentId) {\n                    return componentState;\n                  }\n                } else {\n                  return componentState;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Get the student work by specified student work id, which can be a ComponentState or NodeState\n   * @param studentWorkId the student work id\n   * @return an StudentWork or null\n   */\n  getStudentWorkByStudentWorkId(studentWorkId) {\n    if (studentWorkId != null) {\n      const componentStates = this.studentData.componentStates;\n      if (componentStates != null) {\n        for (let componentState of componentStates) {\n          if (componentState != null && componentState.id === studentWorkId) {\n            return componentState;\n          }\n        }\n      }\n\n      const nodeStates = this.studentData.nodeStates;\n      if (nodeStates != null) {\n        for (let nodeState of nodeStates) {\n          if (nodeState != null && nodeState.id === studentWorkId) {\n            return nodeState;\n          }\n        }\n      }\n    }\n    return null;\n  };\n\n  /**\n   * Returns all the component states for this workgroup\n   */\n  getComponentStates() {\n    return this.studentData.componentStates;\n  };\n\n  /**\n   * Get the component states for the given node id\n   * @param nodeId the node id\n   * @return an array of component states for the given node id\n   */\n  getComponentStatesByNodeId(nodeId) {\n    const componentStatesByNodeId = [];\n    if (nodeId != null) {\n      const studentData = this.studentData;\n      if (studentData != null) {\n        const componentStates = studentData.componentStates;\n        if (componentStates != null) {\n          for (let componentState of componentStates) {\n            if (componentState != null) {\n              const componentStateNodeId = componentState.nodeId;\n              if (nodeId == componentStateNodeId) {\n                componentStatesByNodeId.push(componentState);\n              }\n            }\n          }\n        }\n      }\n    }\n    return componentStatesByNodeId;\n  };\n\n  /**\n   * Get the component states for the given node id and component id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @return an array of component states for the given node id and\n   * component id\n   */\n  getComponentStatesByNodeIdAndComponentId(nodeId, componentId) {\n    const componentStatesByNodeIdAndComponentId = [];\n    if (nodeId != null && componentId != null) {\n      const studentData = this.studentData;\n      if (studentData != null) {\n        const componentStates = studentData.componentStates;\n        if (componentStates != null) {\n          for (let componentState of componentStates) {\n            if (componentState != null) {\n              const componentStateNodeId = componentState.nodeId;\n              const componentStateComponentId = componentState.componentId;\n              if (nodeId == componentStateNodeId &&\n                  componentId == componentStateComponentId) {\n                componentStatesByNodeIdAndComponentId.push(componentState);\n              }\n            }\n          }\n        }\n      }\n    }\n\n    return componentStatesByNodeIdAndComponentId;\n  };\n\n  /**\n   * Get all events\n   * @returns all events for the student\n   */\n  getEvents() {\n    if (this.studentData != null && this.studentData.events != null) {\n      return this.studentData.events;\n    } else {\n      return [];\n    }\n  };\n\n  /**\n   * Get the events for a node id\n   * @param nodeId the node id\n   * @returns the events for the node id\n   */\n  getEventsByNodeId(nodeId) {\n    const eventsByNodeId = [];\n    if (nodeId != null) {\n      if (this.studentData != null && this.studentData.events != null) {\n        const events = this.studentData.events;\n        for (let event of events) {\n          if (event != null) {\n            const eventNodeId = event.nodeId;\n            if (nodeId === eventNodeId) {\n              eventsByNodeId.push(event);\n            }\n          }\n        }\n      }\n    }\n    return eventsByNodeId;\n  };\n\n  /**\n   * Get the events for a component id\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns an array of events for the component id\n   */\n  getEventsByNodeIdAndComponentId(nodeId, componentId) {\n    const eventsByNodeId = [];\n    if (nodeId != null) {\n      if (this.studentData != null && this.studentData.events != null) {\n        const events = this.studentData.events;\n        for (let event of events) {\n          if (event != null) {\n            const eventNodeId = event.nodeId;\n            const eventComponentId = event.componentId;\n            if (nodeId === eventNodeId && componentId === eventComponentId) {\n              eventsByNodeId.push(event);\n            }\n          }\n        }\n      }\n    }\n    return eventsByNodeId;\n  };\n\n  /**\n   * Get the node id of the latest node entered event for an active node that\n   * exists in the project. We need to check if the node exists in the project\n   * in case the node has been deleted from the project. We also need to check\n   * that the node is active in case the node has been moved to the inactive\n   * section of the project.\n   * @return the node id of the latest node entered event for an active node\n   * that exists in the project\n   */\n  getLatestNodeEnteredEventNodeIdWithExistingNode() {\n    const events = this.studentData.events;\n    for (let e = events.length - 1; e >= 0; e--) {\n      const event = events[e];\n      if (event != null) {\n        const eventName = event.event;\n        if (eventName == 'nodeEntered') {\n          const nodeId = event.nodeId;\n          const node = this.ProjectService.getNodeById(nodeId);\n          if (node != null) {\n            if (this.ProjectService.isActive(nodeId)) {\n              return nodeId;\n            }\n          }\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Check if the student can visit the node\n   * @param nodeId the node id\n   * @returns whether the student can visit the node\n   */\n  canVisitNode(nodeId) {\n    if (nodeId != null) {\n      // get the node status for the node\n      const nodeStatus = this.getNodeStatusByNodeId(nodeId);\n      if (nodeStatus != null) {\n        if (nodeStatus.isVisitable) {\n          return true;\n        }\n      }\n    }\n    return false;\n  };\n\n  /**\n   * Get the node status by node id\n   * @param nodeId the node id\n   * @returns the node status object for a node\n   */\n  getNodeStatusByNodeId(nodeId) {\n    if (nodeId != null) {\n      return this.nodeStatuses[nodeId];\n    }\n    return null;\n  };\n\n  /**\n   * Get progress information for a given node\n   * @param nodeId the node id\n   * @returns object with number of completed items (both all and for items\n   * that capture student work), number of visible items (all/with work),\n   * completion % (for all items, items with student work)\n   */\n  getNodeProgressById(nodeId) {\n    let completedItems = 0;\n    let completedItemsWithWork = 0;\n    let totalItems = 0;\n    let totalItemsWithWork = 0;\n    let progress = {};\n\n    if (this.ProjectService.isGroupNode(nodeId)) {\n      let nodeIds = this.ProjectService.getChildNodeIdsById(nodeId);\n      for (let id of nodeIds) {\n        let status = this.nodeStatuses[id];\n        if (this.ProjectService.isGroupNode(id)) {\n          if (status.progress.totalItemsWithWork > -1) {\n            completedItems += status.progress.completedItems;\n            totalItems += status.progress.totalItems;\n            completedItemsWithWork += status.progress.completedItemsWithWork;\n            totalItemsWithWork += status.progress.totalItemsWithWork;\n          } else {\n            // we have a legacy node status so we'll need to calculate manually\n            let groupProgress = this.getNodeProgressById(id);\n            completedItems += groupProgress.completedItems;\n            totalItems += groupProgress.totalItems;\n            completedItemsWithWork += groupProgress.completedItemsWithWork;\n            totalItemsWithWork += groupProgress.totalItemsWithWork;\n          }\n        } else {\n          if (status.isVisible) {\n            totalItems++;\n\n            let hasWork = this.ProjectService.nodeHasWork(id);\n            if (hasWork) {\n              totalItemsWithWork++;\n            }\n\n            if (status.isCompleted) {\n              completedItems++;\n\n              if (hasWork) {\n                completedItemsWithWork++;\n              }\n            }\n          }\n        }\n      }\n\n      let completionPct = totalItems ? Math.round(completedItems / totalItems * 100) : 0;\n      let completionPctWithWork = totalItemsWithWork ? Math.round(completedItemsWithWork / totalItemsWithWork * 100) : 0;\n\n      progress = {\n        \"completedItems\": completedItems,\n        \"completedItemsWithWork\": completedItemsWithWork,\n        \"totalItems\": totalItems,\n        \"totalItemsWithWork\": totalItemsWithWork,\n        \"completionPct\": completionPct,\n        \"completionPctWithWork\": completionPctWithWork\n      };\n    }\n\n    // TODO: implement for steps (using components instead of child nodes)?\n\n    return progress;\n  };\n\n  /**\n   * Check if the given node or component is completed\n   * @param nodeId the node id\n   * @param componentId (optional) the component id\n   * @returns whether the node or component is completed\n   */\n  isCompleted(nodeId, componentId) {\n    let result = false;\n    if (nodeId && componentId) {\n      // check that the component is completed\n\n      // get the component states for the component\n      const componentStates = this.getComponentStatesByNodeIdAndComponentId(nodeId, componentId);\n\n      // get the component events\n      const componentEvents = this.getEventsByNodeIdAndComponentId(nodeId, componentId);\n\n      // get the node events\n      const nodeEvents = this.getEventsByNodeId(nodeId);\n\n      // get the component object\n      const component = this.ProjectService.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      const node = this.ProjectService.getNodeById(nodeId);\n      if (component != null) {\n        // get the component type\n        const componentType = component.type;\n\n        if (componentType != null) {\n          // get the service for the component type\n          const service = this.$injector.get(componentType + 'Service');\n\n          // check if the component is completed\n          if (service.isCompleted(component, componentStates, componentEvents, nodeEvents, node)) {\n            result = true;\n          }\n        }\n      }\n    } else if (nodeId) {\n      // check if node is a group\n      const isGroup = this.ProjectService.isGroupNode(nodeId);\n\n      const node = this.ProjectService.getNodeById(nodeId);\n\n      if (isGroup) {\n        // node is a group\n        let tempResult = true;\n\n        // check that all the nodes in the group are visible and completed\n        const nodeIds = this.ProjectService.getChildNodeIdsById(nodeId);\n\n        if (nodeIds.length) {\n          for (let id of nodeIds) {\n            if (this.nodeStatuses[id] == null || !this.nodeStatuses[id].isVisible || !this.nodeStatuses[id].isCompleted) {\n              // the child is not visible or not completed so the group is not completed\n              tempResult = false;\n              break;\n            }\n          }\n        } else {\n          // there are no nodes in the group (could be a planning activity, for example), so set isCompleted to false\n          tempResult = false;\n        }\n        result = tempResult;\n      } else {\n        // check that all the components in the node are completed\n\n        // get all the components in the node\n        const components = this.ProjectService.getComponentsByNodeId(nodeId);\n\n        // we will default to is completed true\n        let tempResult = true;\n\n        /*\n         * All components must be completed in order for the node to be completed\n         * so we will loop through all the components and check if they are\n         * completed\n         */\n        for (let component of components) {\n          if (component != null) {\n            const componentId = component.id;\n            const componentType = component.type;\n            const showPreviousWorkNodeId = component.showPreviousWorkNodeId;\n            const showPreviousWorkComponentId = component.showPreviousWorkComponentId;\n\n            let tempNodeId = nodeId;\n            let tempNode = node;\n            let tempComponentId = componentId;\n            let tempComponent = component;\n\n            if (showPreviousWorkNodeId != null && showPreviousWorkComponentId != null) {\n              /*\n               * this is a show previous work component so we will check if the\n               * previous component was completed\n               */\n              tempNodeId = showPreviousWorkNodeId;\n              tempComponentId = showPreviousWorkComponentId;\n              tempNode = this.ProjectService.getNodeById(tempNodeId);\n              tempComponent = this.ProjectService.getComponentByNodeIdAndComponentId(tempNodeId, tempComponentId);\n            }\n\n            if (componentType != null) {\n              try {\n                // get the service name\n                const serviceName = componentType + 'Service';\n\n                if (this.$injector.has(serviceName)) {\n                  // get the service for the component type\n                  const service = this.$injector.get(serviceName);\n\n                  // get the component states for the component\n                  const componentStates = this.getComponentStatesByNodeIdAndComponentId(tempNodeId, tempComponentId);\n\n                  // get the component events\n                  const componentEvents = this.getEventsByNodeIdAndComponentId(tempNodeId, tempComponentId);\n\n                  // get the node events\n                  const nodeEvents = this.getEventsByNodeId(tempNodeId);\n\n                  // check if the component is completed\n                  const isComponentCompleted = service.isCompleted(tempComponent, componentStates, componentEvents, nodeEvents, tempNode);\n\n                  tempResult = tempResult && isComponentCompleted;\n                }\n              } catch (e) {\n                console.log(this.$translate('ERROR_COULD_NOT_CALCULATE_IS_COMPLETED') + tempComponentId);\n              }\n            }\n          }\n        }\n        result = tempResult;\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Get the current node\n   * @returns the current node object\n   */\n  getCurrentNode() {\n    return this.currentNode;\n  };\n\n  /**\n   * Get the current node id\n   * @returns the current node id\n   */\n  getCurrentNodeId() {\n    if (this.currentNode != null) {\n      return this.currentNode.id;\n    }\n    return null;\n  };\n\n  /**\n   * Set the current node\n   * @param nodeId the node id\n   */\n  setCurrentNodeByNodeId(nodeId) {\n    if (nodeId != null) {\n      const node = this.ProjectService.getNodeById(nodeId);\n      this.setCurrentNode(node);\n    }\n  };\n\n  /**\n   * Set the current node\n   * @param node the node object\n   */\n  setCurrentNode(node) {\n    const previousCurrentNode = this.currentNode;\n    if (previousCurrentNode !== node) {\n      if (previousCurrentNode &&\n          !this.ProjectService.isGroupNode(previousCurrentNode.id)) {\n        this.previousStep = previousCurrentNode;\n      }\n      this.currentNode = node;\n      this.$rootScope.$broadcast('currentNodeChanged',\n          {previousNode: previousCurrentNode, currentNode: this.currentNode});\n    }\n  };\n\n  /**\n   * End the current node\n   */\n  endCurrentNode() {\n    const previousCurrentNode = this.currentNode;\n    if (previousCurrentNode != null) {\n      this.$rootScope.$broadcast('exitNode', {nodeToExit: previousCurrentNode});\n    }\n  };\n\n  /**\n   * End the current node and set the current node\n   * @param nodeId the node id of the new current node\n   */\n  endCurrentNodeAndSetCurrentNodeByNodeId(nodeId) {\n    if (this.nodeStatuses[nodeId].isVisitable) {\n      this.endCurrentNode();\n      this.setCurrentNodeByNodeId(nodeId);\n    } else {\n      this.nodeClickLocked(nodeId);\n    }\n  };\n\n  /**\n   * Broadcast a listenable event that a locked node has been clicked (attempted to be opened)\n   * @param nodeId\n   */\n  nodeClickLocked(nodeId) {\n    this.$rootScope.$broadcast('nodeClickLocked', {nodeId: nodeId});\n  };\n\n  /**\n   * This will parse a delimited string into an array of\n   * arrays. The default delimiter is the comma, but this\n   * can be overriden in the second argument.\n   * Source: http://www.bennadel.com/blog/1504-ask-ben-parsing-csv-strings-with-javascript-exec-regular-expression-command.htm\n   */\n  CSVToArray( strData, strDelimiter ) {\n    // Check to see if the delimiter is defined. If not,\n    // then default to comma.\n    strDelimiter = (strDelimiter || \",\");\n\n    // Create a regular expression to parse the CSV values.\n    const objPattern = new RegExp(\n      (\n        // Delimiters.\n        \"(\\\\\" + strDelimiter + \"|\\\\r?\\\\n|\\\\r|^)\" +\n\n        // Quoted fields.\n        \"(?:\\\"([^\\\"]*(?:\\\"\\\"[^\\\"]*)*)\\\"|\" +\n\n        // Standard fields.\n        \"([^\\\"\\\\\" + strDelimiter + \"\\\\r\\\\n]*))\"\n      ),\n      \"gi\"\n    );\n\n    // Create an array to hold our data. Give the array\n    // a default empty first row.\n    const arrData = [[]];\n\n    // Create an array to hold our individual pattern\n    // matching groups.\n    let arrMatches = null;\n\n\n    // Keep looping over the regular expression matches\n    // until we can no longer find a match.\n    while (arrMatches = objPattern.exec( strData )) {\n\n      // Get the delimiter that was found.\n      const strMatchedDelimiter = arrMatches[ 1 ];\n\n      // Check to see if the given delimiter has a length\n      // (is not the start of string) and if it matches\n      // field delimiter. If id does not, then we know\n      // that this delimiter is a row delimiter.\n      if (\n        strMatchedDelimiter.length &&\n        (strMatchedDelimiter != strDelimiter)\n      ){\n\n        // Since we have reached a new row of data,\n        // add an empty row to our data array.\n        arrData.push( [] );\n      }\n\n      // Now that we have our delimiter out of the way,\n      // let's check to see which kind of value we\n      // captured (quoted or unquoted).\n      if (arrMatches[ 2 ]){\n\n        // We found a quoted value. When we capture\n        // this value, unescape any double quotes.\n        const strMatchedValue = arrMatches[ 2 ].replace(\n          new RegExp( \"\\\"\\\"\", \"g\" ),\n          \"\\\"\"\n        );\n\n      } else {\n        // We found a non-quoted value.\n        const strMatchedValue = arrMatches[ 3 ];\n      }\n\n      // Now that we have our value string, let's add\n      // it to the data array.\n      let finalValue = strMatchedValue;\n      const floatVal = parseFloat(strMatchedValue);\n      if (!isNaN(floatVal)) {\n        finalValue = floatVal;\n      }\n      arrData[ arrData.length - 1 ].push( finalValue );\n    }\n    // Return the parsed data.\n    return( arrData );\n  };\n\n  /**\n   * Get the total score for the workgroup\n   * @returns the total score for the workgroup\n   */\n  getTotalScore() {\n    const annotations = this.studentData.annotations;\n    const workgroupId = this.ConfigService.getWorkgroupId();\n    return this.AnnotationService.getTotalScore(annotations, workgroupId);\n  }\n\n  /**\n   * Get the project completion for the signed in student\n   * @returns the project completion percentage for the signed in student\n   */\n  getProjectCompletion() {\n    // group0 is always the root node of the whole project\n    const nodeId = 'group0';\n\n    // get the progress including all of the children nodes\n    const progress = this.getNodeProgressById(nodeId);\n\n    return progress;\n  }\n\n  /**\n   * Get the run status\n   */\n  getRunStatus() {\n    return this.runStatus;\n  }\n\n  /**\n   * Get the next available planning node instance node id\n   * @returns the next available planning node instance node id\n   */\n  getNextAvailablePlanningNodeId() {\n    // used to keep track of the highest planning node number we have found, which is 1-based\n    let currentMaxPlanningNodeNumber = 1;\n\n    let nodeStates = this.getNodeStates();\n    if (nodeStates != null) {\n      for (let nodeState of nodeStates) {\n        if (nodeState != null) {\n          let nodeStateNodeId = nodeState.nodeId;\n          if (this.PlanningService.isPlanning(nodeStateNodeId) && nodeState.studentData != null) {\n            let nodes = nodeState.studentData.nodes;\n            for (let node of nodes) {\n              let nodeId = node.id;\n              // regex to match the planning node id e.g. planningNode2\n              let planningNodeIdRegEx = /planningNode(.*)/;\n\n              // run the regex on the node id\n              let result = nodeId.match(planningNodeIdRegEx);\n\n              if (result != null) {\n                // we have found a planning node instance node id\n\n                /*\n                 * get the number part of the planning node instance node id\n                 * e.g. if the nodeId is planningNode2, the number part\n                 * would be 2\n                 */\n                let planningNodeNumber = parseInt(result[1]);\n\n                if (planningNodeNumber > currentMaxPlanningNodeNumber) {\n                  /*\n                   * update the max number part if we have found a new\n                   * higher number\n                   */\n                  currentMaxPlanningNodeNumber = planningNodeNumber;\n                }\n              }\n            }\n          }\n        }\n      }\n    }\n\n    if (this.maxPlanningNodeNumber < currentMaxPlanningNodeNumber) {\n      // Update maxPlanningNodeNumber if we find a bigger number in the NodeStates\n      this.maxPlanningNodeNumber = currentMaxPlanningNodeNumber;\n    }\n\n    // Increment maxPlanningNodeNumber each time this function is called.\n    this.maxPlanningNodeNumber++;\n\n    // return the next available planning node instance node id\n    return 'planningNode' + this.maxPlanningNodeNumber;\n  }\n\n  /**\n   * Get the annotations\n   * @returns the annotations\n   */\n  getAnnotations() {\n    if (this.studentData != null && this.studentData.annotations != null) {\n      return this.studentData.annotations;\n    }\n    return null;\n  }\n\n  /**\n   * Get the latest component states for a node\n   * @param nodeId get the component states for the node\n   * @return an array containing the work for the node\n   */\n  getLatestComponentStatesByNodeId(nodeId) {\n    const latestComponentStates = [];\n    if (nodeId) {\n      const studentData = this.studentData;\n      if (studentData) {\n        const node = this.ProjectService.getNodeById(nodeId);\n        if (node != null) {\n          const components = node.components;\n          if (components != null) {\n            for (let component of components) {\n              if (component != null) {\n                const componentId = component.id;\n                let componentState =\n                    this.getLatestComponentStateByNodeIdAndComponentId(nodeId, componentId);\n                if (componentState == null) {\n                  /*\n                   * there is no component state for the component so we will\n                   * create an object that just contains the node id and\n                   * component id\n                   */\n                  componentState = {};\n                  componentState.nodeId = nodeId;\n                  componentState.componentId = componentId;\n                }\n                latestComponentStates.push(componentState);\n              }\n            }\n          }\n        }\n      }\n    }\n    return latestComponentStates;\n  }\n\n  /**\n   * Get the latest component state for a node\n   * @param nodeId get the latest component state for the node\n   * @return the latest component state for the node\n   */\n  getLatestComponentStateByNodeId(nodeId) {\n    if (nodeId != null) {\n      const studentData = this.studentData;\n      if (studentData) {\n        const componentStates = this.getComponentStatesByNodeId(nodeId);\n        return componentStates[componentStates.length - 1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Check if the completion criteria is satisfied\n   * @param completionCriteria the completion criteria\n   * @return whether the completion criteria was satisfied\n   */\n  isCompletionCriteriaSatisfied(completionCriteria) {\n    let result = true;\n    if (completionCriteria != null) {\n      if (completionCriteria.inOrder) {\n        // the criteria need to be satisfied in order\n\n        let tempTimestamp = 0;\n        const criteria = completionCriteria.criteria;\n        for (let completionCriterion of criteria) {\n          let tempResult = true;\n          if (completionCriterion != null) {\n            // get the function name e.g. 'isVisited', 'isSaved', 'isSubmitted'\n            const functionName = completionCriterion.name;\n\n            if (functionName == 'isSubmitted') {\n              const nodeId = completionCriterion.nodeId;\n              const componentId = completionCriterion.componentId;\n\n              // get the first submit component state after the timestamp\n              const tempComponentState = this.getComponentStateSubmittedAfter(nodeId, componentId, tempTimestamp);\n\n              if (tempComponentState == null) {\n                // we did not find a component state\n                result = false;\n                break;\n              } else {\n                // we found a component state so we will update timestamp\n                tempTimestamp = tempComponentState.serverSaveTime;\n              }\n            } else if (functionName == 'isSaved') {\n              const nodeId = completionCriterion.nodeId;\n              const componentId = completionCriterion.componentId;\n\n              // get the first save component state after the timestamp\n              const tempComponentState = this.getComponentStateSavedAfter(nodeId, componentId, tempTimestamp);\n\n              if (tempComponentState == null) {\n                // we did not find a component state\n                result = false;\n                break;\n              } else {\n                // we found a component state so we will update timestamp\n                tempTimestamp = tempComponentState.serverSaveTime;\n              }\n            } else if (functionName == 'isVisited') {\n              const nodeId = completionCriterion.nodeId;\n\n              // get the first visit event after the timestamp\n              const tempEvent = this.getVisitEventAfter(nodeId, tempTimestamp);\n\n              if (tempEvent == null) {\n                // we did not find a component state\n                result = false;\n                break;\n              } else {\n                // we found a component state so we will update timestamp\n                tempTimestamp = tempEvent.serverSaveTime;\n              }\n            }\n          }\n        }\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Get the first save component state after the given timestamp\n   * @param nodeId the node id of the component state\n   * @param componentId the component id of the component state\n   * @param timestamp look for a save component state after this timestamp\n   */\n  getComponentStateSavedAfter(nodeId, componentId, timestamp) {\n    const componentStates = this.studentData.componentStates;\n    if (componentStates != null) {\n      for (let tempComponentState of componentStates) {\n        if (tempComponentState != null &&\n            tempComponentState.serverSaveTime > timestamp &&\n            tempComponentState.nodeId === nodeId &&\n            tempComponentState.componentId === componentId) {\n          return tempComponentState;\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the first submit component state after the given timestamp\n   * @param nodeId the node id of the component state\n   * @param componentId the component id of the component state\n   * @param timestamp look for a submit component state after this timestamp\n   */\n  getComponentStateSubmittedAfter(nodeId, componentId, timestamp) {\n    const componentStates = this.studentData.componentStates;\n    if (componentStates != null) {\n      for (let tempComponentState of componentStates) {\n        if (tempComponentState != null &&\n            tempComponentState.serverSaveTime > timestamp &&\n            tempComponentState.nodeId === nodeId &&\n            tempComponentState.componentId === componentId &&\n            tempComponentState.isSubmit) {\n          return tempComponentState;\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the first visit event after the timestamp\n   */\n  getVisitEventAfter(nodeId, timestamp) {\n    const events = this.studentData.events;\n    if (events != null) {\n      for (let tempEvent of events) {\n        if (tempEvent != null &&\n            tempEvent.serverSaveTime > timestamp &&\n            tempEvent.nodeId === nodeId &&\n            tempEvent.event === 'nodeEntered') {\n          return tempEvent;\n        }\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get classmate student work\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param showClassmateWorkSource Where to get the work from.\n   * 'period' will get the classmate work only from the period the student is in.\n   * null will get work from the whole class (all periods).\n   *\n   * @return a promise that will return the component states from classmates\n   */\n  getClassmateStudentWork(nodeId, componentId, showClassmateWorkSource) {\n    const studentDataURL = this.ConfigService.getConfigParam('studentDataURL');\n    const httpParams = {};\n    httpParams.method = 'GET';\n    httpParams.url = studentDataURL;\n\n    const params = {};\n    params.runId = this.ConfigService.getRunId();\n    params.nodeId = nodeId;\n    params.componentId = componentId;\n    params.getStudentWork = true;\n    params.getEvents = false;\n    params.getAnnotations = false;\n    params.onlyGetLatest = true;\n\n    if (showClassmateWorkSource == 'period') {\n      params.periodId = this.ConfigService.getPeriodId();\n    }\n\n    httpParams.params = params;\n\n    return this.$http(httpParams).then((result) => {\n      const resultData = result.data;\n      if (resultData != null) {\n        return resultData.studentWorkList;\n      }\n      return [];\n    });\n  }\n\n  /**\n   * Get a student work from any student.\n   * @param id The student work id.\n   */\n  getStudentWorkById(id) {\n    const studentDataURL = this.ConfigService.getConfigParam('studentDataURL');\n    const httpParams = {};\n    httpParams.method = 'GET';\n    httpParams.url = studentDataURL;\n    const params = {};\n    params.runId = this.ConfigService.getRunId();\n    params.id = id;\n    params.getStudentWork = true;\n    params.getEvents = false;\n    params.getAnnotations = false;\n    params.onlyGetLatest = true;\n    httpParams.params = params;\n    return this.$http(httpParams).then((result) => {\n      const resultData = result.data;\n      if (resultData != null && resultData.studentWorkList.length > 0) {\n        return resultData.studentWorkList[0];\n      }\n      return null;\n    });\n  }\n\n  /**\n   * Get the max possible score for the project\n   * @returns the sum of the max scores for all the nodes in the project visible\n   * to the current workgroup or null if none of the visible components has max scores.\n   */\n  getMaxScore() {\n    let maxScore = null;\n    for (let p in this.nodeStatuses) {\n      if (this.nodeStatuses.hasOwnProperty(p)) {\n        let nodeStatus = this.nodeStatuses[p];\n        let nodeId = nodeStatus.nodeId;\n\n        if (nodeStatus.isVisible && !this.ProjectService.isGroupNode(nodeId)) {\n          // node is visible and is not a group\n          // get node max score\n          let nodeMaxScore = this.ProjectService.getMaxScoreForNode(nodeId);\n\n          if (nodeMaxScore) {\n            // there is a max score for the node, so add to total\n            // TODO geoffreykwan: trying to add to null?\n            maxScore += nodeMaxScore;\n          }\n        }\n      }\n    }\n    return maxScore;\n  }\n}\n\nStudentDataService.$inject = [\n  '$filter',\n  '$http',\n  '$injector',\n  '$q',\n  '$rootScope',\n  'AnnotationService',\n  'ConfigService',\n  'PlanningService',\n  'ProjectService',\n  'UtilService'\n];\n\nexport default StudentDataService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/services/utilService.es6 b/src/main/webapp/wise5/services/utilService.es6
index be310d3cdb..614f183af2 100644
--- a/src/main/webapp/wise5/services/utilService.es6
+++ b/src/main/webapp/wise5/services/utilService.es6
@@ -987,6 +987,29 @@ class UtilService {
     }
     return null;
   }
+
+  showJSONValidMessage() {
+    this.setIsJSONValidMessage(true);
+  }
+
+  showJSONInvalidMessage() {
+    this.setIsJSONValidMessage(false);
+  }
+
+  hideJSONValidMessage() {
+    this.setIsJSONValidMessage(null);
+  }
+
+  /**
+   * Show the message in the toolbar that says "JSON Valid" or "JSON Invalid".
+   * @param isJSONValid
+   * true if we want to show "JSON Valid"
+   * false if we want to show "JSON Invalid"
+   * null if we don't want to show anything
+   */
+  setIsJSONValidMessage(isJSONValid) {
+    this.$rootScope.$broadcast('setIsJSONValid', { isJSONValid: isJSONValid });
+  }
 }
 
 // Get the last element of the array
diff --git a/src/main/webapp/wise5/services/utilService.js b/src/main/webapp/wise5/services/utilService.js
index 1e3c1d7142..69aa0606bb 100644
--- a/src/main/webapp/wise5/services/utilService.js
+++ b/src/main/webapp/wise5/services/utilService.js
@@ -1277,6 +1277,35 @@ var UtilService = function () {
 
       return null;
     }
+  }, {
+    key: 'showJSONValidMessage',
+    value: function showJSONValidMessage() {
+      this.setIsJSONValidMessage(true);
+    }
+  }, {
+    key: 'showJSONInvalidMessage',
+    value: function showJSONInvalidMessage() {
+      this.setIsJSONValidMessage(false);
+    }
+  }, {
+    key: 'hideJSONValidMessage',
+    value: function hideJSONValidMessage() {
+      this.setIsJSONValidMessage(null);
+    }
+
+    /**
+     * Show the message in the toolbar that says "JSON Valid" or "JSON Invalid".
+     * @param isJSONValid
+     * true if we want to show "JSON Valid"
+     * false if we want to show "JSON Invalid"
+     * null if we don't want to show anything
+     */
+
+  }, {
+    key: 'setIsJSONValidMessage',
+    value: function setIsJSONValidMessage(isJSONValid) {
+      this.$rootScope.$broadcast('setIsJSONValid', { isJSONValid: isJSONValid });
+    }
   }]);
 
   return UtilService;
diff --git a/src/main/webapp/wise5/services/utilService.js.map b/src/main/webapp/wise5/services/utilService.js.map
index d948252b51..c41312de5a 100644
--- a/src/main/webapp/wise5/services/utilService.js.map
+++ b/src/main/webapp/wise5/services/utilService.js.map
@@ -1 +1 @@
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strict';\n\nclass UtilService {\n  constructor(\n      $filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $timeout) {\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$timeout = $timeout;\n    this.componentTypeToLabel = {};\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Generates and returns a random key of the given length if\n   * specified. If length is not specified, returns a key 10\n   * characters in length.\n   */\n  generateKey(length) {\n    this.CHARS = [\"a\",\"b\",\"c\",\"d\",\"e\",\"f\",\"g\",\"h\",\"i\",\"j\",\"k\",\"l\",\"m\",\n        \"n\",\"o\",\"p\",\"q\",\"r\", \"s\",\"t\",\"u\",\"v\",\"w\",\"x\",\"y\",\"z\",\n        \"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\"];\n\n    if (!length) {\n      length = 10;\n    }\n\n    let key = '';\n    for (let a = 0; a < length; a++) {\n      key += this.CHARS[Math.floor(Math.random() * (this.CHARS.length - 1))];\n    }\n\n    return key;\n  };\n\n  /**\n   * Try to convert a string to a number\n   * @param str the string to convert\n   * @returns a number if we were able to convert the string to a number.\n   * if we couldn't convert the string to a number we will just return the string.\n   */\n  convertStringToNumber(str) {\n    if (str != null && str != '' && !isNaN(Number(str))) {\n      return Number(str);\n    }\n    return str;\n  };\n\n  /**\n   * Create a copy of a JSON object\n   * @param jsonObject the JSON object to get a copy of\n   * @return a copy of the JSON object that was passed in\n   */\n  makeCopyOfJSONObject(jsonObject) {\n    if (jsonObject != null) {\n      const jsonObjectString = angular.toJson(jsonObject);\n      return angular.fromJson(jsonObjectString);\n    }\n    return null;\n  };\n\n  /**\n   * Get the image object\n   * @params img_b64 the base64 image string\n   * @returns an image object\n   */\n  getImageObjectFromBase64String(img_b64) {\n    // create a blob from the base64 image string\n    const blob = this.dataURItoBlob(img_b64);\n\n    const now = new Date().getTime();\n    const filename = encodeURIComponent('picture_' + now + '.png');\n    const pngFile = new File([blob], filename, {\n      lastModified: now, // optional - default = now\n      type: 'image/png' // optional - default = ''\n    });\n    return pngFile;\n  }\n\n  /**\n   * Convert base64/URLEncoded data component to raw binary data held in a string\n   * @param dataURI base64/URLEncoded data\n   * @returns a Blob object\n   */\n  dataURItoBlob(dataURI) {\n    let byteString;\n    if (dataURI.split(',')[0].indexOf('base64') >= 0)\n      byteString = atob(dataURI.split(',')[1]);\n    else\n      byteString = unescape(dataURI.split(',')[1]);\n\n    // separate out the mime component\n    const mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];\n\n    // write the bytes of the string to a typed array\n    const ia = new Uint8Array(byteString.length);\n    for (let i = 0; i < byteString.length; i++) {\n      ia[i] = byteString.charCodeAt(i);\n    }\n    return new Blob([ia], {type:mimeString});\n  };\n\n  /**\n   * Get an image object from an image element\n   * @param imageElement an image element (<img src='abc.jpg'/>)\n   * @returns an image object\n   */\n  getImageObjectFromImageElement(imageElement) {\n    let imageObject = null;\n    if (imageElement != null) {\n      // create a canvas element that we will use to generate a base64 string\n      const canvas = document.createElement(\"canvas\");\n\n      // set the width and height of the canvas to match the image dimensions\n      canvas.width = imageElement.naturalWidth;\n      canvas.height = imageElement.naturalHeight;\n\n      // draw the image onto the canvas\n      const ctx = canvas.getContext(\"2d\");\n      ctx.drawImage(imageElement, 0, 0);\n\n      const dataURL = canvas.toDataURL(\"image/png\");\n      imageObject = this.getImageObjectFromBase64String(dataURL);\n    }\n    return imageObject;\n  }\n\n  /**\n   * Check if the asset is an image\n   * @param fileName the file name of the asset\n   * @return whether the asset is an image or not\n   */\n  isImage(fileName) {\n    if (fileName != null) {\n      const imageExtensionsRegEx =\n          new RegExp('.*\\.(png|jpg|jpeg|bmp|gif|tiff|svg)');\n      const lowerCaseFileName = fileName.toLowerCase();\n      const matchResult = lowerCaseFileName.match(imageExtensionsRegEx);\n\n      if (matchResult != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the asset is a video\n   * @param fileName the file name of the asset\n   * @return whether the asset is a video or not\n   */\n  isVideo(fileName) {\n    if (fileName != null) {\n      const videoExtensionsRegEx =\n          new RegExp('.*\\.(mp4|mpg|mpeg|m4v|m2v|avi|gifv|mov|qt)');\n      const lowerCaseFileName = fileName.toLowerCase();\n      const matchResult = lowerCaseFileName.match(videoExtensionsRegEx);\n\n      if (matchResult != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Replace <a> and <button> elements with <wiselink> elements where\n   * applicable\n   * @param html the html\n   * @return the modified html with <wiselink> elements\n   */\n  insertWISELinks(html) {\n    html = this.insertWISELinkAnchors(html);\n    html = this.insertWISELinkButtons(html);\n    return html;\n  }\n\n  /**\n   * Replace <a> elements that have the parameter wiselink=true with\n   * <wiselink> elements\n   * @param html the html\n   * @return the modified html with certain <a> elements replaced with\n   * <wiselink> elements\n   */\n  insertWISELinkAnchors(html) {\n    let wiseLinkRegEx = new RegExp(/<a.*?wiselink=\"true\".*?>(.*?)<\\/a>/);\n    let wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n\n    // loop until we have replaced all the matches\n    while (wiseLinkRegExMatchResult != null) {\n      // get the whole <a> element\n      let anchorHTML = wiseLinkRegExMatchResult[0];\n\n      // get the inner html of the <a> element\n      let anchorText = wiseLinkRegExMatchResult[1];\n\n      // get the node id parameter of the <a> element\n      let nodeId = this.getWISELinkNodeId(anchorHTML);\n\n      if (nodeId == null) {\n        nodeId = '';\n      }\n\n      let componentIdAttr = \"\";\n      let componentId = this.getWISELinkComponentId(anchorHTML);\n      if (componentId != null) {\n        componentIdAttr = \"component-id='\" + componentId + \"'\";\n      }\n\n      // create the <wiselink> element\n      let wiselinkHtml = \"<wiselink type='link' link-text='\" + anchorText + \"' node-id='\" + nodeId + \"' \" + componentIdAttr + \"/>\";\n\n      // replace the <a> element with the <wiselink> element\n      html = html.replace(wiseLinkRegExMatchResult[0], wiselinkHtml);\n\n      // search for the next <a> element with the parameter wiselink=true\n      wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n    }\n    return html;\n  }\n\n  /**\n   * Replace <button> elements that have the parameter wiselink=true\n   * with <wiselink> elements\n   * @param html the html\n   * @return the modified html with certain <button> elements replaced with\n   * <wiselink> elements\n   */\n  insertWISELinkButtons(html) {\n    const wiseLinkRegEx = new RegExp(/<button.*?wiselink=\"true\".*?>(.*?)<\\/button>/);\n    let wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n\n    // loop until we have replaced all the matches\n    while (wiseLinkRegExMatchResult != null) {\n      // get the whole <button> element\n      const buttonHTML = wiseLinkRegExMatchResult[0];\n\n      // get the inner html of the <button> element\n      const buttonText = wiseLinkRegExMatchResult[1];\n\n      // get the node id parameter of the <button> element\n      let nodeId = this.getWISELinkNodeId(buttonHTML);\n\n      if (nodeId == null) {\n        nodeId = '';\n      }\n\n      let componentIdAttr = \"\";\n      let componentId = this.getWISELinkComponentId(buttonHTML);\n      if (componentId != null) {\n        componentIdAttr = \"component-id='\" + componentId + \"'\";\n      }\n\n      // create the <wiselink> element\n      const wiselinkHtml = \"<wiselink type='button' link-text='\" + buttonText + \"' node-id='\" + nodeId + \"' \" + componentIdAttr + \"/>\";\n\n      // replace the <button> element with the <wiselink> element\n      html = html.replace(wiseLinkRegExMatchResult[0], wiselinkHtml);\n\n      // search for the next <button> element with the parameter wiselink=true\n      wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n    }\n    return html;\n  }\n\n  /**\n   * Get the node id from the wiselink element\n   * e.g.\n   * <wiselink node-id='node5'/>\n   * the node id in this case is 'node5'\n   * @param html the html for the element\n   * @return the node id from the node id parameter in the element\n   */\n  getWISELinkNodeId(html) {\n    if (html != null) {\n      let nodeIdRegEx = new RegExp(/node-id=[\"'b](.*?)[\"']/, 'g');\n      let nodeIdRegExResult = nodeIdRegEx.exec(html);\n      if (nodeIdRegExResult != null) {\n        return nodeIdRegExResult[1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the component id from the wiselink element\n   * e.g.\n   * <wiselink node-id='node5' component-id='xyzabc' />\n   * the component id in this case is 'xyzabc'\n   * @param html the html for the element\n   * @return the component id from the component id parameter in the element\n   */\n  getWISELinkComponentId(html) {\n    if (html != null) {\n      let componentIdRegEx = new RegExp(/component-id=[\"'b](.*?)[\"']/, 'g');\n      let componentIdRegExResult = componentIdRegEx.exec(html);\n      if (componentIdRegExResult != null) {\n        return componentIdRegExResult[1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the link type from the wiselink element\n   * e.g.\n   * <wiselink type='button'/>\n   * the type in this case is 'button'\n   * @param html the html for the element\n   * @return the link type from the type parameter in the element\n   */\n  getWISELinkType(html) {\n    if (html != null) {\n      let typeRegEx = new RegExp(/type=[\"'b](.*?)[\"']/, 'g');\n      let typeRegExResult = typeRegEx.exec(html);\n      if (typeRegExResult != null) {\n        return typeRegExResult[1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the link text from the wiselink element\n   * <wiselink link-text='Go to here'/>\n   * the link text in this case is 'Go to here'\n   * @param html the html for the element\n   * @return the link text from the link text parameter in the element\n   */\n  getWISELinkLinkText(html) {\n    if (html != null) {\n      let linkTextRegEx = new RegExp(/link-text=[\"'b](.*?)[\"']/, 'g');\n      let linkTextRegExResult = linkTextRegEx.exec(html);\n      if (linkTextRegExResult != null) {\n        return linkTextRegExResult[1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Replace <wiselink> elements with <a> and <button> elements\n   * @param html the html\n   * @return the modified html without <wiselink> elements\n   */\n  replaceWISELinks(html) {\n    html = this.replaceWISELinksHelper(html, '<wiselink.*?\\/>');\n    html = this.replaceWISELinksHelper(html, '<wiselink.*?>.*?<\\/wiselink>');\n    return html;\n  }\n\n  /**\n   * Helper function for replacing <wiselink> elements with <a> and <button>\n   * elements\n   * @param html the html\n   * @param regex the regex string to search for\n   * @return the html without <wiselink> elements\n   */\n  replaceWISELinksHelper(html, regex) {\n    let wiseLinkRegEx = new RegExp(regex);\n    let wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n\n    // loop until we have replaced all the matches\n    while (wiseLinkRegExMatchResult != null) {\n      /*\n       * get the whole match\n       * e.g. <wiselink type='link' node-id='node5' link-text='Go to here'/>\n       */\n      let wiseLinkHTML = wiseLinkRegExMatchResult[0];\n\n      // get the node id, component id (if exists), type and link text from the match\n      let nodeId = this.getWISELinkNodeId(wiseLinkHTML);\n      let componentId = this.getWISELinkComponentId(wiseLinkHTML);\n      let componentHTML = '';\n      if (componentId != null && componentId != '') {\n        componentHTML = \"component-id='\" + componentId + \"'\";\n      }\n      let type = this.getWISELinkType(wiseLinkHTML);\n      let linkText = this.getWISELinkLinkText(wiseLinkHTML);\n\n      let newElement = null;\n\n      if (type == 'link') {\n        // create a link that represents the wiselink\n        newElement = \"<a wiselink='true' node-id='\" + nodeId + \"' \" + componentHTML + \">\" + linkText + \"</a>\";\n      } else if (type == 'button') {\n        // create a button that represents the wiselink\n        newElement = \"<button wiselink='true' node-id='\" + nodeId + \"' \" + componentHTML + \">\" + linkText + \"</button>\";\n      } else {\n        // default to creating a link that represents the wiselink\n        newElement = \"<a wiselink='true' node-id='\" + nodeId + \"' \" + componentHTML + \">\" + linkText + \"</a>\";\n      }\n\n      if (newElement != null) {\n        // replace the wiselink with the new element\n        html = html.replace(wiseLinkHTML, newElement);\n      }\n\n      // find the next match\n      wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n    }\n    return html;\n  }\n\n  /**\n   * Create a custom summernote button that inserts a WISE asset into\n   * summernote\n   * @param controller the controller that is creating the button\n   * e.g. openResponseController\n   * @param nodeId the node id of the component that is creating the button\n   * @param componentId the component id of the component that is creating the button\n   * @param target the target element in the component to insert the asset into\n   * e.g. 'prompt' or 'rubricSummernoteId'\n   * @param tooltip the tooltip text for the custom button\n   * @return custom summernote button\n   */\n  createInsertAssetButton(controller, projectId, nodeId, componentId, target, tooltip) {\n    const thisRootScope = this.$rootScope;\n\n    const InsertAssetButton = function(context) {\n      const ui = $.summernote.ui;\n\n      const button = ui.button({\n        contents: '<i class=\"note-icon-picture\"></i>',\n        tooltip: tooltip,\n        click: function () {\n          // remember the position of the cursor\n          context.invoke('editor.saveRange');\n\n          // create the params for opening the asset chooser\n          const params = {};\n          params.isPopup = true;\n\n          if (projectId != null) {\n            params.projectId = projectId;\n          }\n\n          if (nodeId != null) {\n            params.nodeId = nodeId;\n          }\n\n          if (componentId != null) {\n            params.componentId = componentId;\n          }\n\n          params.target = target;\n\n          // display the asset chooser\n          thisRootScope.$broadcast('openAssetChooser', params);\n        }\n      });\n      return button.render();   // return button as jquery object\n    };\n    return InsertAssetButton;\n  }\n\n  /**\n   * Create a custom summernote button that inserts a WISE link into\n   * summernote\n   * @param controller the controller that is creating the WISE link\n   * e.g. openResponseController\n   * @param nodeId the node id of the component that is creating the WISE link\n   * @param componentId the component id of the component that is creating the WISE link\n   * @param target the target element in the component to insert the WISE link into\n   * e.g. 'prompt' or 'rubricSummernoteId'\n   * @param tooltip the tooltip text for the custom button\n   * @return custom summernote button\n   */\n  createInsertWISELinkButton(controller, projectId, nodeId, componentId, target, tooltip) {\n    const thisRootScope = this.$rootScope;\n\n    const InsertWISELinkButton = function(context) {\n      const ui = $.summernote.ui;\n\n      const button = ui.button({\n        contents: '<i class=\"note-icon-link\"></i>',\n        tooltip: tooltip,\n        click: function () {\n          // remember the position of the cursor\n          context.invoke('editor.saveRange');\n\n          // create the params for opening the WISE Link chooser\n          const params = {};\n\n          if (projectId != null) {\n            params.projectId = projectId;\n          }\n\n          if (nodeId != null) {\n            params.nodeId = nodeId;\n          }\n\n          if (componentId != null) {\n            params.componentId = componentId;\n          }\n\n          params.target = target;\n\n          // display the WISE Link authoring popup\n          thisRootScope.$broadcast('openWISELinkChooser', params);\n        }\n      });\n      return button.render();   // return button as jquery object\n    };\n    return InsertWISELinkButton;\n  }\n\n  /**\n   * Remove html tags from the string. Also remove new lines.\n   * @param html an html string\n   * @return text without html tags\n   */\n  removeHTMLTags(html) {\n    let text = '';\n    if (html != null) {\n      // remove tags\n      text = html.replace(/<\\/?[^>]+(>|$)/g, \" \");\n      text = text.replace(/\\n/g, \" \");\n      text = text.replace(/\\r/g, \" \");\n    }\n    return text;\n  }\n\n  /**\n   * Check if a string ends with a specific string\n   * @param subjectString the main string\n   * @param searchString the potential end of the string\n   * @param position (optional) the position to start searching\n   * @return whether the subjectString ends with the searchString\n   */\n  endsWith(subjectString, searchString, position) {\n    if (typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > subjectString.length) {\n      position = subjectString.length;\n    }\n    position -= searchString.length;\n    const lastIndex = subjectString.lastIndexOf(searchString, position);\n    return lastIndex !== -1 && lastIndex === position;\n  }\n\n  /**\n   * Sort the objects by server save time\n   * @param object1 an object\n   * @param object2 an object\n   * @return -1 if object1 server save time comes before object2 server save time\n   * 1 if object1 server save time comes after object2 server save time\n   * 0 if object1 server save time is equal to object2 server save time\n   */\n  sortByServerSaveTime(object1, object2) {\n    if (object1.serverSaveTime < object2.serverSaveTime) {\n      return -1;\n    } else if (object1.serverSaveTime > object2.serverSaveTime) {\n      return 1;\n    } else {\n      return 0;\n    }\n  }\n\n  /**\n   * Convert milliseconds since the epoch to a pretty printed date time\n   * @param milliseconds the milliseconds since the epoch\n   * @return a string containing the pretty printed date time\n   * example\n   * Wed Apr 06 2016 9:05:38 AM\n   */\n  convertMillisecondsToFormattedDateTime(milliseconds) {\n    const date = new Date(milliseconds);\n    if (date != null) {\n      return date.toDateString() + \" \" + date.toLocaleTimeString();\n    }\n    return \"\";\n  }\n\n  /**\n   * Get the label for the given component type\n   * @param componentType string\n   * @return string label for the component type\n   */\n  getComponentTypeLabel(componentType) {\n    /*\n     * check if we have already obtained the label for this component type\n     * before\n     */\n    let label = this.componentTypeToLabel[componentType];\n\n    if (label == null) {\n      let componentService = this.$injector.get(componentType + 'Service');\n      if (componentService != null && componentService.getComponentTypeLabel != null) {\n        label = componentService.getComponentTypeLabel();\n        this.componentTypeToLabel[componentType] = label;\n      }\n    }\n\n    if (label == null) {\n      /*\n       * we were unable to find the label so we will just use the\n       * component type as the label\n       */\n      label = componentType;\n    }\n    return label;\n  }\n\n  /**\n   * Check if two arrays contain the same values. This is commonly used to\n   * check if two arrays of ids contain the same values. The order of the\n   * elements is not compared, only the actual values. This means the elements\n   * can be in different orders but still contain the same values.\n   * Example:\n   * array1=['1234567890', 'abcdefghij']\n   * array2=['abcdefghij', '1234567890']\n   * If these two arrays are passed in as the two arguments, this function\n   * will return true.\n   * Note: This may only work if the elements are strings, numbers or\n   * booleans. If the elements are objects, this function may or may not work.\n   * @param array1 an array of strings, numbers, or booleans\n   * @param array2 an array of strings, numbers, or booleans\n   * @return whether the arrays contain the same values\n   */\n  arraysContainSameValues(array1, array2) {\n    if (array1 != null && array2 != null) {\n      const array1Copy = this.makeCopyOfJSONObject(array1);\n      array1Copy.sort();\n\n      const array2Copy = this.makeCopyOfJSONObject(array2);\n      array2Copy.sort();\n\n      if (angular.toJson(array1Copy) == angular.toJson(array2Copy)) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Whether there are any connected components\n   * @param componentContent the component content\n   * @return whether there are any connected components\n   */\n  hasConnectedComponent(componentContent) {\n    if (componentContent != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null && connectedComponents.length > 0) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * @param componentContent The component content.\n   * @return Whether there are any connected components with a field we always\n   * want to read or write.\n   */\n  hasConnectedComponentAlwaysField(componentContent) {\n    if (componentContent != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null && connectedComponents.length > 0) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent.fields != null) {\n            for (let field of connectedComponent.fields) {\n              if (field.when == \"always\") {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Whether this component shows work from a connected component\n   * @param componentContent the component content\n   * @return whether this component shows work from a connected component\n   */\n  hasShowWorkConnectedComponent(componentContent) {\n    if (componentContent != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent != null) {\n            if (connectedComponent.type == 'showWork') {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Whether this component imports work from a connected component\n   * @param componentContent the component content\n   * @return whether this component imports work from a connected component\n   */\n  hasImportWorkConnectedComponent(componentContent) {\n    if (componentContent != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent != null) {\n            if (connectedComponent.type == 'importWork') {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if an array has any non null elements.\n   * @param arrayToCheck An array which may have null and non null elements.\n   * @return True if the array has at least one non null element.\n   * False if the array has all null elements.\n   */\n  arrayHasNonNullElement(arrayToCheck) {\n    for (let element of arrayToCheck) {\n      if (element != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Takes a string and breaks it up into multiple lines so that the length of\n   * each line does not exceed a certain number of characters. This code was\n   * found on stackoverflow.\n   * https://stackoverflow.com/questions/14484787/wrap-text-in-javascript\n   * @param str The string to break up.\n   * @param maxWidth The max width of a line.\n   * @return A string that has been broken up into multiple lines using \\n.\n   */\n  wordWrap(str, maxWidth) {\n    if (str.length <= maxWidth) {\n      return str;\n    }\n    let newLineStr = \"\\n\";\n    let done = false;\n    let res = '';\n    do {\n        let found = false;\n        // Inserts new line at first whitespace of the line\n        for (let i = maxWidth - 1; i >= 0; i--) {\n            if (this.testWhite(str.charAt(i))) {\n                res = res + [str.slice(0, i), newLineStr].join('');\n                str = str.slice(i + 1);\n                found = true;\n                break;\n            }\n        }\n        // Inserts new line at maxWidth position, the word is too long to wrap\n        if (!found) {\n            res += [str.slice(0, maxWidth), newLineStr].join('');\n            str = str.slice(maxWidth);\n        }\n\n        if (str.length < maxWidth)\n            done = true;\n    } while (!done);\n\n    return res + str;\n  }\n\n  /**\n   * Helper function for wordWrap().\n   * @param x A single character string.\n   * @return Whether the single character is a whitespace character.\n   */\n  testWhite(x) {\n    let white = new RegExp(/^\\s$/);\n    return white.test(x.charAt(0));\n  };\n\n  /**\n   * Get the number of words in the string.\n   * @param str The string.\n   * @return The number of words in the string.\n   */\n  wordCount(str) {\n    return str.trim().split(/\\s+/).length;\n  }\n\n  /**\n   * Check if there is a 'nodeEntered' event in the array of events.\n   * @param events An array of events.\n   * @return Whether there is a 'nodeEntered' event in the array of events.\n   */\n  hasNodeEnteredEvent(events) {\n    for (let event of events) {\n      if (event.event == 'nodeEntered') {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Determine whether the component has been authored to import work.\n   * @param componentContent The component content.\n   * @return Whether to import work in this component.\n   */\n  hasImportWorkConnectedComponent(componentContent) {\n    return this.hasXConnectedComponent(componentContent, 'importWork');\n  }\n\n  /**\n   * Determine whether the component has been authored to show work.\n   * @param componentContent The component content.\n   * @return Whether to show work in this component.\n   */\n  hasShowWorkConnectedComponent(componentContent) {\n    return this.hasXConnectedComponent(componentContent, 'showWork');\n  }\n\n  /**\n   * Determine whether the component has been authored to show classmate work.\n   * @param componentContent The component content.\n   * @return Whether to show classmate work in this component.\n   */\n  hasShowClassmateWorkConnectedComponent(componentContent) {\n    return this.hasXConnectedComponent(componentContent, 'showClassmateWork');\n  }\n\n  /**\n   * Determine whether the component has a connected component of the given type.\n   * @param componentContent The component content.\n   * @param connectedComponentType The connected component type.\n   * @return Whether the component has a connected component of the given type.\n   */\n  hasXConnectedComponent(componentContent, connectedComponentType) {\n    if (componentContent.connectedComponents != null) {\n      let connectedComponents = componentContent.connectedComponents;\n      // loop through all the connected components\n      for (let connectedComponent of connectedComponents) {\n        if (connectedComponent.type == connectedComponentType) {\n          // the connected component is the type we're looking for\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Temporarily highlight an element in the DOM.\n   * @param id The id of the element.\n   * @param duration The number of milliseconds to keep the element highlighted.\n   */\n  temporarilyHighlightElement(id, duration = 1000) {\n    let element = $('#' + id);\n    let originalBackgroundColor = element.css('backgroundColor');\n    element.css('background-color', '#FFFF9C');\n\n    /*\n     * Use a timeout before starting to transition back to\n     * the original background color. For some reason the\n     * element won't get highlighted in the first place\n     * unless this timeout is used.\n     */\n    this.$timeout(() => {\n      // slowly fade back to the original background color\n      element.css({\n        'transition': 'background-color 2s ease-in-out',\n        'background-color': originalBackgroundColor\n      });\n\n      /*\n       * remove these styling fields after we perform\n       * the fade otherwise the regular mouseover\n       * background color change will not work\n       */\n      this.$timeout(() => {\n        element.css({\n          'transition': '',\n          'background-color': ''\n        });\n      }, 2000);\n    }, duration);\n  }\n\n  /**\n   * Render the component state and then generate an image from it.\n   * @param componentState The component state to render.\n   * @return A promise that will return an image.\n   */\n  generateImageFromComponentState(componentState) {\n    let deferred = this.$q.defer();\n    this.$mdDialog.show({\n      template: `\n        <div style=\"position: fixed; width: 100%; height: 100%; top: 0; left: 0; background-color: rgba(0,0,0,0.2); z-index: 2;\"></div>\n        <div align=\"center\" style=\"position: absolute; top: 100px; left: 200px; z-index: 1000; padding: 20px; background-color: yellow;\">\n          <span>{{ \"importingWork\" | translate }}...</span>\n          <br/>\n          <br/>\n          <md-progress-circular md-mode=\"indeterminate\"></md-progress-circular>\n        </div>\n        <component node-id=\"{{nodeId}}\"\n                   component-id=\"{{componentId}}\"\n                   component-state=\"{{componentState}}\"\n                   mode=\"student\"></component>\n      `,\n      locals: {\n        nodeId: componentState.nodeId,\n        componentId: componentState.componentId,\n        componentState: componentState\n      },\n      controller: DialogController\n    });\n    function DialogController($scope, $mdDialog, nodeId, componentId, componentState) {\n      $scope.nodeId = nodeId;\n      $scope.componentId = componentId;\n      $scope.componentState = componentState;\n      $scope.closeDialog = function() {\n        $mdDialog.hide();\n      }\n    }\n    DialogController.$inject = ['$scope', '$mdDialog', 'nodeId', 'componentId', 'componentState'];\n    // wait for the component in the dialog to finish rendering\n    let doneRenderingComponentListener = this.$rootScope.$on('doneRenderingComponent', (event, args) => {\n      if (componentState.nodeId == args.nodeId && componentState.componentId == args.componentId) {\n        this.$timeout(() => {\n          this.generateImageFromComponentStateHelper(componentState).then((image) => {\n            /*\n             * Destroy the listener otherwise this block of code will be called every time\n             * doneRenderingComponent is fired in the future.\n             */\n            doneRenderingComponentListener();\n            this.$timeout.cancel(destroyDoneRenderingComponentListenerTimeout);\n            deferred.resolve(image);\n          });\n        }, 1000);\n      }\n    });\n    /*\n     * Set a timeout to destroy the listener in case there is an error creating the image and\n     * we don't get to destroying it above.\n     */\n    let destroyDoneRenderingComponentListenerTimeout = this.$timeout(() => {\n      // destroy the listener\n      doneRenderingComponentListener();\n    }, 10000);\n    return deferred.promise;\n  }\n\n  /**\n   * The component state has been rendered in the DOM and now we want to create an image\n   * from it.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image.\n   */\n  generateImageFromComponentStateHelper(componentState) {\n    let deferred = this.$q.defer();\n    let componentService = this.$injector.get(componentState.componentType + 'Service');\n    componentService.generateImageFromRenderedComponentState(componentState).then((image) => {\n      deferred.resolve(image);\n      this.$mdDialog.hide();\n    });\n    return deferred.promise;\n  }\n\n  /**\n   * Get the connected component associated with the component state.\n   * @param componentContent The component content.\n   * @param componentState The component state.\n   * @return A connected component object or null.\n   */\n  getConnectedComponentByComponentState(componentContent, componentState) {\n    let nodeId = componentState.nodeId;\n    let componentId = componentState.componentId;\n    let connectedComponents = componentContent.connectedComponents;\n    for (let connectedComponent of connectedComponents) {\n      if (connectedComponent.nodeId == nodeId && connectedComponent.componentId == componentId) {\n        return connectedComponent;\n      }\n    }\n    return null;\n  }\n}\n\n// Get the last element of the array\nif (!Array.prototype.last) {\n  Array.prototype.last = function() {\n    return this[this.length - 1];\n  };\n}\n\nUtilService.$inject = [\n  '$filter',\n  '$injector',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$timeout'\n];\n\nexport default UtilService;\n"]}
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strict';\n\nclass UtilService {\n  constructor(\n      $filter,\n      $injector,\n      $mdDialog,\n      $q,\n      $rootScope,\n      $timeout) {\n    this.$filter = $filter;\n    this.$injector = $injector;\n    this.$mdDialog = $mdDialog;\n    this.$q = $q;\n    this.$rootScope = $rootScope;\n    this.$timeout = $timeout;\n    this.componentTypeToLabel = {};\n    this.$translate = this.$filter('translate');\n  }\n\n  /**\n   * Generates and returns a random key of the given length if\n   * specified. If length is not specified, returns a key 10\n   * characters in length.\n   */\n  generateKey(length) {\n    this.CHARS = [\"a\",\"b\",\"c\",\"d\",\"e\",\"f\",\"g\",\"h\",\"i\",\"j\",\"k\",\"l\",\"m\",\n        \"n\",\"o\",\"p\",\"q\",\"r\", \"s\",\"t\",\"u\",\"v\",\"w\",\"x\",\"y\",\"z\",\n        \"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\"];\n\n    if (!length) {\n      length = 10;\n    }\n\n    let key = '';\n    for (let a = 0; a < length; a++) {\n      key += this.CHARS[Math.floor(Math.random() * (this.CHARS.length - 1))];\n    }\n\n    return key;\n  };\n\n  /**\n   * Try to convert a string to a number\n   * @param str the string to convert\n   * @returns a number if we were able to convert the string to a number.\n   * if we couldn't convert the string to a number we will just return the string.\n   */\n  convertStringToNumber(str) {\n    if (str != null && str != '' && !isNaN(Number(str))) {\n      return Number(str);\n    }\n    return str;\n  };\n\n  /**\n   * Create a copy of a JSON object\n   * @param jsonObject the JSON object to get a copy of\n   * @return a copy of the JSON object that was passed in\n   */\n  makeCopyOfJSONObject(jsonObject) {\n    if (jsonObject != null) {\n      const jsonObjectString = angular.toJson(jsonObject);\n      return angular.fromJson(jsonObjectString);\n    }\n    return null;\n  };\n\n  /**\n   * Get the image object\n   * @params img_b64 the base64 image string\n   * @returns an image object\n   */\n  getImageObjectFromBase64String(img_b64) {\n    // create a blob from the base64 image string\n    const blob = this.dataURItoBlob(img_b64);\n\n    const now = new Date().getTime();\n    const filename = encodeURIComponent('picture_' + now + '.png');\n    const pngFile = new File([blob], filename, {\n      lastModified: now, // optional - default = now\n      type: 'image/png' // optional - default = ''\n    });\n    return pngFile;\n  }\n\n  /**\n   * Convert base64/URLEncoded data component to raw binary data held in a string\n   * @param dataURI base64/URLEncoded data\n   * @returns a Blob object\n   */\n  dataURItoBlob(dataURI) {\n    let byteString;\n    if (dataURI.split(',')[0].indexOf('base64') >= 0)\n      byteString = atob(dataURI.split(',')[1]);\n    else\n      byteString = unescape(dataURI.split(',')[1]);\n\n    // separate out the mime component\n    const mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];\n\n    // write the bytes of the string to a typed array\n    const ia = new Uint8Array(byteString.length);\n    for (let i = 0; i < byteString.length; i++) {\n      ia[i] = byteString.charCodeAt(i);\n    }\n    return new Blob([ia], {type:mimeString});\n  };\n\n  /**\n   * Get an image object from an image element\n   * @param imageElement an image element (<img src='abc.jpg'/>)\n   * @returns an image object\n   */\n  getImageObjectFromImageElement(imageElement) {\n    let imageObject = null;\n    if (imageElement != null) {\n      // create a canvas element that we will use to generate a base64 string\n      const canvas = document.createElement(\"canvas\");\n\n      // set the width and height of the canvas to match the image dimensions\n      canvas.width = imageElement.naturalWidth;\n      canvas.height = imageElement.naturalHeight;\n\n      // draw the image onto the canvas\n      const ctx = canvas.getContext(\"2d\");\n      ctx.drawImage(imageElement, 0, 0);\n\n      const dataURL = canvas.toDataURL(\"image/png\");\n      imageObject = this.getImageObjectFromBase64String(dataURL);\n    }\n    return imageObject;\n  }\n\n  /**\n   * Check if the asset is an image\n   * @param fileName the file name of the asset\n   * @return whether the asset is an image or not\n   */\n  isImage(fileName) {\n    if (fileName != null) {\n      const imageExtensionsRegEx =\n          new RegExp('.*\\.(png|jpg|jpeg|bmp|gif|tiff|svg)');\n      const lowerCaseFileName = fileName.toLowerCase();\n      const matchResult = lowerCaseFileName.match(imageExtensionsRegEx);\n\n      if (matchResult != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if the asset is a video\n   * @param fileName the file name of the asset\n   * @return whether the asset is a video or not\n   */\n  isVideo(fileName) {\n    if (fileName != null) {\n      const videoExtensionsRegEx =\n          new RegExp('.*\\.(mp4|mpg|mpeg|m4v|m2v|avi|gifv|mov|qt)');\n      const lowerCaseFileName = fileName.toLowerCase();\n      const matchResult = lowerCaseFileName.match(videoExtensionsRegEx);\n\n      if (matchResult != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Replace <a> and <button> elements with <wiselink> elements where\n   * applicable\n   * @param html the html\n   * @return the modified html with <wiselink> elements\n   */\n  insertWISELinks(html) {\n    html = this.insertWISELinkAnchors(html);\n    html = this.insertWISELinkButtons(html);\n    return html;\n  }\n\n  /**\n   * Replace <a> elements that have the parameter wiselink=true with\n   * <wiselink> elements\n   * @param html the html\n   * @return the modified html with certain <a> elements replaced with\n   * <wiselink> elements\n   */\n  insertWISELinkAnchors(html) {\n    let wiseLinkRegEx = new RegExp(/<a.*?wiselink=\"true\".*?>(.*?)<\\/a>/);\n    let wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n\n    // loop until we have replaced all the matches\n    while (wiseLinkRegExMatchResult != null) {\n      // get the whole <a> element\n      let anchorHTML = wiseLinkRegExMatchResult[0];\n\n      // get the inner html of the <a> element\n      let anchorText = wiseLinkRegExMatchResult[1];\n\n      // get the node id parameter of the <a> element\n      let nodeId = this.getWISELinkNodeId(anchorHTML);\n\n      if (nodeId == null) {\n        nodeId = '';\n      }\n\n      let componentIdAttr = \"\";\n      let componentId = this.getWISELinkComponentId(anchorHTML);\n      if (componentId != null) {\n        componentIdAttr = \"component-id='\" + componentId + \"'\";\n      }\n\n      // create the <wiselink> element\n      let wiselinkHtml = \"<wiselink type='link' link-text='\" + anchorText + \"' node-id='\" + nodeId + \"' \" + componentIdAttr + \"/>\";\n\n      // replace the <a> element with the <wiselink> element\n      html = html.replace(wiseLinkRegExMatchResult[0], wiselinkHtml);\n\n      // search for the next <a> element with the parameter wiselink=true\n      wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n    }\n    return html;\n  }\n\n  /**\n   * Replace <button> elements that have the parameter wiselink=true\n   * with <wiselink> elements\n   * @param html the html\n   * @return the modified html with certain <button> elements replaced with\n   * <wiselink> elements\n   */\n  insertWISELinkButtons(html) {\n    const wiseLinkRegEx = new RegExp(/<button.*?wiselink=\"true\".*?>(.*?)<\\/button>/);\n    let wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n\n    // loop until we have replaced all the matches\n    while (wiseLinkRegExMatchResult != null) {\n      // get the whole <button> element\n      const buttonHTML = wiseLinkRegExMatchResult[0];\n\n      // get the inner html of the <button> element\n      const buttonText = wiseLinkRegExMatchResult[1];\n\n      // get the node id parameter of the <button> element\n      let nodeId = this.getWISELinkNodeId(buttonHTML);\n\n      if (nodeId == null) {\n        nodeId = '';\n      }\n\n      let componentIdAttr = \"\";\n      let componentId = this.getWISELinkComponentId(buttonHTML);\n      if (componentId != null) {\n        componentIdAttr = \"component-id='\" + componentId + \"'\";\n      }\n\n      // create the <wiselink> element\n      const wiselinkHtml = \"<wiselink type='button' link-text='\" + buttonText + \"' node-id='\" + nodeId + \"' \" + componentIdAttr + \"/>\";\n\n      // replace the <button> element with the <wiselink> element\n      html = html.replace(wiseLinkRegExMatchResult[0], wiselinkHtml);\n\n      // search for the next <button> element with the parameter wiselink=true\n      wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n    }\n    return html;\n  }\n\n  /**\n   * Get the node id from the wiselink element\n   * e.g.\n   * <wiselink node-id='node5'/>\n   * the node id in this case is 'node5'\n   * @param html the html for the element\n   * @return the node id from the node id parameter in the element\n   */\n  getWISELinkNodeId(html) {\n    if (html != null) {\n      let nodeIdRegEx = new RegExp(/node-id=[\"'b](.*?)[\"']/, 'g');\n      let nodeIdRegExResult = nodeIdRegEx.exec(html);\n      if (nodeIdRegExResult != null) {\n        return nodeIdRegExResult[1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the component id from the wiselink element\n   * e.g.\n   * <wiselink node-id='node5' component-id='xyzabc' />\n   * the component id in this case is 'xyzabc'\n   * @param html the html for the element\n   * @return the component id from the component id parameter in the element\n   */\n  getWISELinkComponentId(html) {\n    if (html != null) {\n      let componentIdRegEx = new RegExp(/component-id=[\"'b](.*?)[\"']/, 'g');\n      let componentIdRegExResult = componentIdRegEx.exec(html);\n      if (componentIdRegExResult != null) {\n        return componentIdRegExResult[1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the link type from the wiselink element\n   * e.g.\n   * <wiselink type='button'/>\n   * the type in this case is 'button'\n   * @param html the html for the element\n   * @return the link type from the type parameter in the element\n   */\n  getWISELinkType(html) {\n    if (html != null) {\n      let typeRegEx = new RegExp(/type=[\"'b](.*?)[\"']/, 'g');\n      let typeRegExResult = typeRegEx.exec(html);\n      if (typeRegExResult != null) {\n        return typeRegExResult[1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Get the link text from the wiselink element\n   * <wiselink link-text='Go to here'/>\n   * the link text in this case is 'Go to here'\n   * @param html the html for the element\n   * @return the link text from the link text parameter in the element\n   */\n  getWISELinkLinkText(html) {\n    if (html != null) {\n      let linkTextRegEx = new RegExp(/link-text=[\"'b](.*?)[\"']/, 'g');\n      let linkTextRegExResult = linkTextRegEx.exec(html);\n      if (linkTextRegExResult != null) {\n        return linkTextRegExResult[1];\n      }\n    }\n    return null;\n  }\n\n  /**\n   * Replace <wiselink> elements with <a> and <button> elements\n   * @param html the html\n   * @return the modified html without <wiselink> elements\n   */\n  replaceWISELinks(html) {\n    html = this.replaceWISELinksHelper(html, '<wiselink.*?\\/>');\n    html = this.replaceWISELinksHelper(html, '<wiselink.*?>.*?<\\/wiselink>');\n    return html;\n  }\n\n  /**\n   * Helper function for replacing <wiselink> elements with <a> and <button>\n   * elements\n   * @param html the html\n   * @param regex the regex string to search for\n   * @return the html without <wiselink> elements\n   */\n  replaceWISELinksHelper(html, regex) {\n    let wiseLinkRegEx = new RegExp(regex);\n    let wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n\n    // loop until we have replaced all the matches\n    while (wiseLinkRegExMatchResult != null) {\n      /*\n       * get the whole match\n       * e.g. <wiselink type='link' node-id='node5' link-text='Go to here'/>\n       */\n      let wiseLinkHTML = wiseLinkRegExMatchResult[0];\n\n      // get the node id, component id (if exists), type and link text from the match\n      let nodeId = this.getWISELinkNodeId(wiseLinkHTML);\n      let componentId = this.getWISELinkComponentId(wiseLinkHTML);\n      let componentHTML = '';\n      if (componentId != null && componentId != '') {\n        componentHTML = \"component-id='\" + componentId + \"'\";\n      }\n      let type = this.getWISELinkType(wiseLinkHTML);\n      let linkText = this.getWISELinkLinkText(wiseLinkHTML);\n\n      let newElement = null;\n\n      if (type == 'link') {\n        // create a link that represents the wiselink\n        newElement = \"<a wiselink='true' node-id='\" + nodeId + \"' \" + componentHTML + \">\" + linkText + \"</a>\";\n      } else if (type == 'button') {\n        // create a button that represents the wiselink\n        newElement = \"<button wiselink='true' node-id='\" + nodeId + \"' \" + componentHTML + \">\" + linkText + \"</button>\";\n      } else {\n        // default to creating a link that represents the wiselink\n        newElement = \"<a wiselink='true' node-id='\" + nodeId + \"' \" + componentHTML + \">\" + linkText + \"</a>\";\n      }\n\n      if (newElement != null) {\n        // replace the wiselink with the new element\n        html = html.replace(wiseLinkHTML, newElement);\n      }\n\n      // find the next match\n      wiseLinkRegExMatchResult = wiseLinkRegEx.exec(html);\n    }\n    return html;\n  }\n\n  /**\n   * Create a custom summernote button that inserts a WISE asset into\n   * summernote\n   * @param controller the controller that is creating the button\n   * e.g. openResponseController\n   * @param nodeId the node id of the component that is creating the button\n   * @param componentId the component id of the component that is creating the button\n   * @param target the target element in the component to insert the asset into\n   * e.g. 'prompt' or 'rubricSummernoteId'\n   * @param tooltip the tooltip text for the custom button\n   * @return custom summernote button\n   */\n  createInsertAssetButton(controller, projectId, nodeId, componentId, target, tooltip) {\n    const thisRootScope = this.$rootScope;\n\n    const InsertAssetButton = function(context) {\n      const ui = $.summernote.ui;\n\n      const button = ui.button({\n        contents: '<i class=\"note-icon-picture\"></i>',\n        tooltip: tooltip,\n        click: function () {\n          // remember the position of the cursor\n          context.invoke('editor.saveRange');\n\n          // create the params for opening the asset chooser\n          const params = {};\n          params.isPopup = true;\n\n          if (projectId != null) {\n            params.projectId = projectId;\n          }\n\n          if (nodeId != null) {\n            params.nodeId = nodeId;\n          }\n\n          if (componentId != null) {\n            params.componentId = componentId;\n          }\n\n          params.target = target;\n\n          // display the asset chooser\n          thisRootScope.$broadcast('openAssetChooser', params);\n        }\n      });\n      return button.render();   // return button as jquery object\n    };\n    return InsertAssetButton;\n  }\n\n  /**\n   * Create a custom summernote button that inserts a WISE link into\n   * summernote\n   * @param controller the controller that is creating the WISE link\n   * e.g. openResponseController\n   * @param nodeId the node id of the component that is creating the WISE link\n   * @param componentId the component id of the component that is creating the WISE link\n   * @param target the target element in the component to insert the WISE link into\n   * e.g. 'prompt' or 'rubricSummernoteId'\n   * @param tooltip the tooltip text for the custom button\n   * @return custom summernote button\n   */\n  createInsertWISELinkButton(controller, projectId, nodeId, componentId, target, tooltip) {\n    const thisRootScope = this.$rootScope;\n\n    const InsertWISELinkButton = function(context) {\n      const ui = $.summernote.ui;\n\n      const button = ui.button({\n        contents: '<i class=\"note-icon-link\"></i>',\n        tooltip: tooltip,\n        click: function () {\n          // remember the position of the cursor\n          context.invoke('editor.saveRange');\n\n          // create the params for opening the WISE Link chooser\n          const params = {};\n\n          if (projectId != null) {\n            params.projectId = projectId;\n          }\n\n          if (nodeId != null) {\n            params.nodeId = nodeId;\n          }\n\n          if (componentId != null) {\n            params.componentId = componentId;\n          }\n\n          params.target = target;\n\n          // display the WISE Link authoring popup\n          thisRootScope.$broadcast('openWISELinkChooser', params);\n        }\n      });\n      return button.render();   // return button as jquery object\n    };\n    return InsertWISELinkButton;\n  }\n\n  /**\n   * Remove html tags from the string. Also remove new lines.\n   * @param html an html string\n   * @return text without html tags\n   */\n  removeHTMLTags(html) {\n    let text = '';\n    if (html != null) {\n      // remove tags\n      text = html.replace(/<\\/?[^>]+(>|$)/g, \" \");\n      text = text.replace(/\\n/g, \" \");\n      text = text.replace(/\\r/g, \" \");\n    }\n    return text;\n  }\n\n  /**\n   * Check if a string ends with a specific string\n   * @param subjectString the main string\n   * @param searchString the potential end of the string\n   * @param position (optional) the position to start searching\n   * @return whether the subjectString ends with the searchString\n   */\n  endsWith(subjectString, searchString, position) {\n    if (typeof position !== 'number' || !isFinite(position) || Math.floor(position) !== position || position > subjectString.length) {\n      position = subjectString.length;\n    }\n    position -= searchString.length;\n    const lastIndex = subjectString.lastIndexOf(searchString, position);\n    return lastIndex !== -1 && lastIndex === position;\n  }\n\n  /**\n   * Sort the objects by server save time\n   * @param object1 an object\n   * @param object2 an object\n   * @return -1 if object1 server save time comes before object2 server save time\n   * 1 if object1 server save time comes after object2 server save time\n   * 0 if object1 server save time is equal to object2 server save time\n   */\n  sortByServerSaveTime(object1, object2) {\n    if (object1.serverSaveTime < object2.serverSaveTime) {\n      return -1;\n    } else if (object1.serverSaveTime > object2.serverSaveTime) {\n      return 1;\n    } else {\n      return 0;\n    }\n  }\n\n  /**\n   * Convert milliseconds since the epoch to a pretty printed date time\n   * @param milliseconds the milliseconds since the epoch\n   * @return a string containing the pretty printed date time\n   * example\n   * Wed Apr 06 2016 9:05:38 AM\n   */\n  convertMillisecondsToFormattedDateTime(milliseconds) {\n    const date = new Date(milliseconds);\n    if (date != null) {\n      return date.toDateString() + \" \" + date.toLocaleTimeString();\n    }\n    return \"\";\n  }\n\n  /**\n   * Get the label for the given component type\n   * @param componentType string\n   * @return string label for the component type\n   */\n  getComponentTypeLabel(componentType) {\n    /*\n     * check if we have already obtained the label for this component type\n     * before\n     */\n    let label = this.componentTypeToLabel[componentType];\n\n    if (label == null) {\n      let componentService = this.$injector.get(componentType + 'Service');\n      if (componentService != null && componentService.getComponentTypeLabel != null) {\n        label = componentService.getComponentTypeLabel();\n        this.componentTypeToLabel[componentType] = label;\n      }\n    }\n\n    if (label == null) {\n      /*\n       * we were unable to find the label so we will just use the\n       * component type as the label\n       */\n      label = componentType;\n    }\n    return label;\n  }\n\n  /**\n   * Check if two arrays contain the same values. This is commonly used to\n   * check if two arrays of ids contain the same values. The order of the\n   * elements is not compared, only the actual values. This means the elements\n   * can be in different orders but still contain the same values.\n   * Example:\n   * array1=['1234567890', 'abcdefghij']\n   * array2=['abcdefghij', '1234567890']\n   * If these two arrays are passed in as the two arguments, this function\n   * will return true.\n   * Note: This may only work if the elements are strings, numbers or\n   * booleans. If the elements are objects, this function may or may not work.\n   * @param array1 an array of strings, numbers, or booleans\n   * @param array2 an array of strings, numbers, or booleans\n   * @return whether the arrays contain the same values\n   */\n  arraysContainSameValues(array1, array2) {\n    if (array1 != null && array2 != null) {\n      const array1Copy = this.makeCopyOfJSONObject(array1);\n      array1Copy.sort();\n\n      const array2Copy = this.makeCopyOfJSONObject(array2);\n      array2Copy.sort();\n\n      if (angular.toJson(array1Copy) == angular.toJson(array2Copy)) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Whether there are any connected components\n   * @param componentContent the component content\n   * @return whether there are any connected components\n   */\n  hasConnectedComponent(componentContent) {\n    if (componentContent != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null && connectedComponents.length > 0) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * @param componentContent The component content.\n   * @return Whether there are any connected components with a field we always\n   * want to read or write.\n   */\n  hasConnectedComponentAlwaysField(componentContent) {\n    if (componentContent != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null && connectedComponents.length > 0) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent.fields != null) {\n            for (let field of connectedComponent.fields) {\n              if (field.when == \"always\") {\n                return true;\n              }\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Whether this component shows work from a connected component\n   * @param componentContent the component content\n   * @return whether this component shows work from a connected component\n   */\n  hasShowWorkConnectedComponent(componentContent) {\n    if (componentContent != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent != null) {\n            if (connectedComponent.type == 'showWork') {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Whether this component imports work from a connected component\n   * @param componentContent the component content\n   * @return whether this component imports work from a connected component\n   */\n  hasImportWorkConnectedComponent(componentContent) {\n    if (componentContent != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent != null) {\n            if (connectedComponent.type == 'importWork') {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Check if an array has any non null elements.\n   * @param arrayToCheck An array which may have null and non null elements.\n   * @return True if the array has at least one non null element.\n   * False if the array has all null elements.\n   */\n  arrayHasNonNullElement(arrayToCheck) {\n    for (let element of arrayToCheck) {\n      if (element != null) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Takes a string and breaks it up into multiple lines so that the length of\n   * each line does not exceed a certain number of characters. This code was\n   * found on stackoverflow.\n   * https://stackoverflow.com/questions/14484787/wrap-text-in-javascript\n   * @param str The string to break up.\n   * @param maxWidth The max width of a line.\n   * @return A string that has been broken up into multiple lines using \\n.\n   */\n  wordWrap(str, maxWidth) {\n    if (str.length <= maxWidth) {\n      return str;\n    }\n    let newLineStr = \"\\n\";\n    let done = false;\n    let res = '';\n    do {\n        let found = false;\n        // Inserts new line at first whitespace of the line\n        for (let i = maxWidth - 1; i >= 0; i--) {\n            if (this.testWhite(str.charAt(i))) {\n                res = res + [str.slice(0, i), newLineStr].join('');\n                str = str.slice(i + 1);\n                found = true;\n                break;\n            }\n        }\n        // Inserts new line at maxWidth position, the word is too long to wrap\n        if (!found) {\n            res += [str.slice(0, maxWidth), newLineStr].join('');\n            str = str.slice(maxWidth);\n        }\n\n        if (str.length < maxWidth)\n            done = true;\n    } while (!done);\n\n    return res + str;\n  }\n\n  /**\n   * Helper function for wordWrap().\n   * @param x A single character string.\n   * @return Whether the single character is a whitespace character.\n   */\n  testWhite(x) {\n    let white = new RegExp(/^\\s$/);\n    return white.test(x.charAt(0));\n  };\n\n  /**\n   * Get the number of words in the string.\n   * @param str The string.\n   * @return The number of words in the string.\n   */\n  wordCount(str) {\n    return str.trim().split(/\\s+/).length;\n  }\n\n  /**\n   * Check if there is a 'nodeEntered' event in the array of events.\n   * @param events An array of events.\n   * @return Whether there is a 'nodeEntered' event in the array of events.\n   */\n  hasNodeEnteredEvent(events) {\n    for (let event of events) {\n      if (event.event == 'nodeEntered') {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Determine whether the component has been authored to import work.\n   * @param componentContent The component content.\n   * @return Whether to import work in this component.\n   */\n  hasImportWorkConnectedComponent(componentContent) {\n    return this.hasXConnectedComponent(componentContent, 'importWork');\n  }\n\n  /**\n   * Determine whether the component has been authored to show work.\n   * @param componentContent The component content.\n   * @return Whether to show work in this component.\n   */\n  hasShowWorkConnectedComponent(componentContent) {\n    return this.hasXConnectedComponent(componentContent, 'showWork');\n  }\n\n  /**\n   * Determine whether the component has been authored to show classmate work.\n   * @param componentContent The component content.\n   * @return Whether to show classmate work in this component.\n   */\n  hasShowClassmateWorkConnectedComponent(componentContent) {\n    return this.hasXConnectedComponent(componentContent, 'showClassmateWork');\n  }\n\n  /**\n   * Determine whether the component has a connected component of the given type.\n   * @param componentContent The component content.\n   * @param connectedComponentType The connected component type.\n   * @return Whether the component has a connected component of the given type.\n   */\n  hasXConnectedComponent(componentContent, connectedComponentType) {\n    if (componentContent.connectedComponents != null) {\n      let connectedComponents = componentContent.connectedComponents;\n      // loop through all the connected components\n      for (let connectedComponent of connectedComponents) {\n        if (connectedComponent.type == connectedComponentType) {\n          // the connected component is the type we're looking for\n          return true;\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Temporarily highlight an element in the DOM.\n   * @param id The id of the element.\n   * @param duration The number of milliseconds to keep the element highlighted.\n   */\n  temporarilyHighlightElement(id, duration = 1000) {\n    let element = $('#' + id);\n    let originalBackgroundColor = element.css('backgroundColor');\n    element.css('background-color', '#FFFF9C');\n\n    /*\n     * Use a timeout before starting to transition back to\n     * the original background color. For some reason the\n     * element won't get highlighted in the first place\n     * unless this timeout is used.\n     */\n    this.$timeout(() => {\n      // slowly fade back to the original background color\n      element.css({\n        'transition': 'background-color 2s ease-in-out',\n        'background-color': originalBackgroundColor\n      });\n\n      /*\n       * remove these styling fields after we perform\n       * the fade otherwise the regular mouseover\n       * background color change will not work\n       */\n      this.$timeout(() => {\n        element.css({\n          'transition': '',\n          'background-color': ''\n        });\n      }, 2000);\n    }, duration);\n  }\n\n  /**\n   * Render the component state and then generate an image from it.\n   * @param componentState The component state to render.\n   * @return A promise that will return an image.\n   */\n  generateImageFromComponentState(componentState) {\n    let deferred = this.$q.defer();\n    this.$mdDialog.show({\n      template: `\n        <div style=\"position: fixed; width: 100%; height: 100%; top: 0; left: 0; background-color: rgba(0,0,0,0.2); z-index: 2;\"></div>\n        <div align=\"center\" style=\"position: absolute; top: 100px; left: 200px; z-index: 1000; padding: 20px; background-color: yellow;\">\n          <span>{{ \"importingWork\" | translate }}...</span>\n          <br/>\n          <br/>\n          <md-progress-circular md-mode=\"indeterminate\"></md-progress-circular>\n        </div>\n        <component node-id=\"{{nodeId}}\"\n                   component-id=\"{{componentId}}\"\n                   component-state=\"{{componentState}}\"\n                   mode=\"student\"></component>\n      `,\n      locals: {\n        nodeId: componentState.nodeId,\n        componentId: componentState.componentId,\n        componentState: componentState\n      },\n      controller: DialogController\n    });\n    function DialogController($scope, $mdDialog, nodeId, componentId, componentState) {\n      $scope.nodeId = nodeId;\n      $scope.componentId = componentId;\n      $scope.componentState = componentState;\n      $scope.closeDialog = function() {\n        $mdDialog.hide();\n      }\n    }\n    DialogController.$inject = ['$scope', '$mdDialog', 'nodeId', 'componentId', 'componentState'];\n    // wait for the component in the dialog to finish rendering\n    let doneRenderingComponentListener = this.$rootScope.$on('doneRenderingComponent', (event, args) => {\n      if (componentState.nodeId == args.nodeId && componentState.componentId == args.componentId) {\n        this.$timeout(() => {\n          this.generateImageFromComponentStateHelper(componentState).then((image) => {\n            /*\n             * Destroy the listener otherwise this block of code will be called every time\n             * doneRenderingComponent is fired in the future.\n             */\n            doneRenderingComponentListener();\n            this.$timeout.cancel(destroyDoneRenderingComponentListenerTimeout);\n            deferred.resolve(image);\n          });\n        }, 1000);\n      }\n    });\n    /*\n     * Set a timeout to destroy the listener in case there is an error creating the image and\n     * we don't get to destroying it above.\n     */\n    let destroyDoneRenderingComponentListenerTimeout = this.$timeout(() => {\n      // destroy the listener\n      doneRenderingComponentListener();\n    }, 10000);\n    return deferred.promise;\n  }\n\n  /**\n   * The component state has been rendered in the DOM and now we want to create an image\n   * from it.\n   * @param componentState The component state that has been rendered.\n   * @return A promise that will return an image.\n   */\n  generateImageFromComponentStateHelper(componentState) {\n    let deferred = this.$q.defer();\n    let componentService = this.$injector.get(componentState.componentType + 'Service');\n    componentService.generateImageFromRenderedComponentState(componentState).then((image) => {\n      deferred.resolve(image);\n      this.$mdDialog.hide();\n    });\n    return deferred.promise;\n  }\n\n  /**\n   * Get the connected component associated with the component state.\n   * @param componentContent The component content.\n   * @param componentState The component state.\n   * @return A connected component object or null.\n   */\n  getConnectedComponentByComponentState(componentContent, componentState) {\n    let nodeId = componentState.nodeId;\n    let componentId = componentState.componentId;\n    let connectedComponents = componentContent.connectedComponents;\n    for (let connectedComponent of connectedComponents) {\n      if (connectedComponent.nodeId == nodeId && connectedComponent.componentId == componentId) {\n        return connectedComponent;\n      }\n    }\n    return null;\n  }\n\n  showJSONValidMessage() {\n    this.setIsJSONValidMessage(true);\n  }\n\n  showJSONInvalidMessage() {\n    this.setIsJSONValidMessage(false);\n  }\n\n  hideJSONValidMessage() {\n    this.setIsJSONValidMessage(null);\n  }\n\n  /**\n   * Show the message in the toolbar that says \"JSON Valid\" or \"JSON Invalid\".\n   * @param isJSONValid\n   * true if we want to show \"JSON Valid\"\n   * false if we want to show \"JSON Invalid\"\n   * null if we don't want to show anything\n   */\n  setIsJSONValidMessage(isJSONValid) {\n    this.$rootScope.$broadcast('setIsJSONValid', { isJSONValid: isJSONValid });\n  }\n}\n\n// Get the last element of the array\nif (!Array.prototype.last) {\n  Array.prototype.last = function() {\n    return this[this.length - 1];\n  };\n}\n\nUtilService.$inject = [\n  '$filter',\n  '$injector',\n  '$mdDialog',\n  '$q',\n  '$rootScope',\n  '$timeout'\n];\n\nexport default UtilService;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.es6 b/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.es6
index e2ec2d2e5b..8ba9184c97 100644
--- a/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.es6
+++ b/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.es6
@@ -7,6 +7,7 @@ class NavItemController {
                 $element,
                 dragulaService,
                 NodeService,
+                PlanningService,
                 ProjectService,
                 StudentDataService,
                 $mdDialog) {
@@ -17,6 +18,7 @@ class NavItemController {
         this.$element = $element;
         this.dragulaService = dragulaService;
         this.NodeService = NodeService;
+        this.PlanningService = PlanningService;
         this.ProjectService = ProjectService;
         this.StudentDataService = StudentDataService;
         this.$mdDialog = $mdDialog;
@@ -36,14 +38,14 @@ class NavItemController {
         this.isCurrentNode = (this.currentNode.id === this.nodeId);
 
         // whether this node is a planning node
-        this.isPlanning = this.ProjectService.isPlanning(this.nodeId);
+        this.isPlanning = this.PlanningService.isPlanning(this.nodeId);
 
         // the array of nodes used for drag/drop planning sorting
         this.availablePlanningNodes = [];
 
         // whether the node is a planning node instance
         this.node = this.ProjectService.getNodeById(this.nodeId);
-        this.isPlanningInstance = this.ProjectService.isPlanningInstance(this.nodeId);
+        this.isPlanningInstance = this.PlanningService.isPlanningInstance(this.nodeId);
 
         this.parentGroupId = null;
 
@@ -58,7 +60,7 @@ class NavItemController {
 
         if (parentGroup != null) {
             this.parentGroupId = parentGroup.id;
-            this.isParentGroupPlanning = this.ProjectService.isPlanning(this.parentGroupId);
+            this.isParentGroupPlanning = this.PlanningService.isPlanning(this.parentGroupId);
         }
 
         if (this.isPlanning) {
@@ -66,7 +68,7 @@ class NavItemController {
              * planning is enabled so we will get the available planning
              * nodes that can be used in this group
              */
-            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.nodeId);
+            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.nodeId);
         }
 
         if (this.isParentGroupPlanning) {
@@ -80,7 +82,7 @@ class NavItemController {
              * planning is enabled so we will get the available planning
              * nodes that can be used in this group
              */
-            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.parentGroupId);
+            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.parentGroupId);
 
             this.$scope.$watch(
                 () => {
@@ -189,7 +191,7 @@ class NavItemController {
                 }
 
                 let nodeId = el.getAttribute('data-nodeid');
-                return this.ProjectService.isPlanningInstance(nodeId);
+                return this.PlanningService.isPlanningInstance(nodeId);
             }
         });
 
@@ -350,10 +352,10 @@ class NavItemController {
     addPlanningNodeInstanceInside(nodeIdToInsertInside, templateNodeId) {
         // create the planning node instance
         let nextAvailablePlanningNodeId = this.StudentDataService.getNextAvailablePlanningNodeId();
-        let planningNodeInstance = this.ProjectService.createPlanningNodeInstance(nodeIdToInsertInside, templateNodeId, nextAvailablePlanningNodeId);
+        let planningNodeInstance = this.PlanningService.createPlanningNodeInstance(templateNodeId, nextAvailablePlanningNodeId);
 
         // add the planning node instance inside
-        this.ProjectService.addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance);
+        this.PlanningService.addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance);
 
         /*
          * update the node statuses so that a node status is created for
@@ -432,10 +434,10 @@ class NavItemController {
 
             // create the planning node instance
             let nextAvailablePlanningNodeId = this.StudentDataService.getNextAvailablePlanningNodeId();
-            let planningNodeInstance = this.ProjectService.createPlanningNodeInstance(parentGroupId, templateNodeId, nextAvailablePlanningNodeId);
+            let planningNodeInstance = this.PlanningService.createPlanningNodeInstance(templateNodeId, nextAvailablePlanningNodeId);
 
             // insert planning node instance after
-            this.ProjectService.addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance);
+            this.PlanningService.addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance);
 
             /*
              * update the node statuses so that a node status is created for
@@ -520,44 +522,6 @@ class NavItemController {
         return description;
     }
 
-    /**
-     * Move the planning node. If the other node is a group node, we will
-     * insert this node as the first node in the group. If the other node is
-     * a step node, we will insert this node after the other node.
-     * @param otherNodeId the other node we will move this node inside or after
-     */
-    movePlanningNode0(otherNodeId) {
-
-        /*
-         * check that this node is not the same as the other node.
-         * if they are the same we don't need to do anything.
-         */
-        if (this.nodeId != otherNodeId) {
-            if (this.ProjectService.isGroupNode(otherNodeId)) {
-                // insert this node inside the group node
-                this.ProjectService.movePlanningNodeInstanceInside(this.nodeId, otherNodeId);
-            } else {
-                // insert this node after the other node
-                this.ProjectService.movePlanningNodeInstanceAfter(this.nodeId, otherNodeId);
-            }
-
-            // Save move planning node event
-            let componentId = null;
-            let componentType = null;
-            let category = "Planning";
-            let eventName = "planningNodeMoved";
-            let eventData = {
-                nodeIdMoved: this.nodeId,
-                nodeIdMovedInsideOrAfter: otherNodeId
-            };
-            let eventNodeId = this.nodeId;
-            this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);
-        }
-
-        // perform any necessary updating
-        this.planningNodeChanged();
-    }
-
     /**
      * Move the planning node. If the other node is a group node, we will
      * insert this node as the first node in the group. If the other node is
@@ -572,11 +536,9 @@ class NavItemController {
          */
         if (nodeIdToMove != nodeIdToMoveAfter) {
             if (this.ProjectService.isGroupNode(nodeIdToMoveAfter)) {
-                // insert this node inside the group node
-                this.ProjectService.movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToMoveAfter);
+                this.PlanningService.movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToMoveAfter);
             } else {
-                // insert this node after the other node
-                this.ProjectService.movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToMoveAfter);
+                this.PlanningService.movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToMoveAfter);
             }
         }
 
@@ -688,6 +650,7 @@ NavItemController.$inject = [
     '$element',
     'dragulaService',
     'NodeService',
+    'PlanningService',
     'ProjectService',
     'StudentDataService',
     '$mdDialog'
diff --git a/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.js b/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.js
index be3533efc0..54bff7f0b2 100644
--- a/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.js
+++ b/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.js
@@ -9,7 +9,7 @@ var _createClass = function () { function defineProperties(target, props) { for
 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
 var NavItemController = function () {
-    function NavItemController($filter, $rootScope, $scope, $element, dragulaService, NodeService, ProjectService, StudentDataService, $mdDialog) {
+    function NavItemController($filter, $rootScope, $scope, $element, dragulaService, NodeService, PlanningService, ProjectService, StudentDataService, $mdDialog) {
         var _this = this;
 
         _classCallCheck(this, NavItemController);
@@ -20,6 +20,7 @@ var NavItemController = function () {
         this.$element = $element;
         this.dragulaService = dragulaService;
         this.NodeService = NodeService;
+        this.PlanningService = PlanningService;
         this.ProjectService = ProjectService;
         this.StudentDataService = StudentDataService;
         this.$mdDialog = $mdDialog;
@@ -39,14 +40,14 @@ var NavItemController = function () {
         this.isCurrentNode = this.currentNode.id === this.nodeId;
 
         // whether this node is a planning node
-        this.isPlanning = this.ProjectService.isPlanning(this.nodeId);
+        this.isPlanning = this.PlanningService.isPlanning(this.nodeId);
 
         // the array of nodes used for drag/drop planning sorting
         this.availablePlanningNodes = [];
 
         // whether the node is a planning node instance
         this.node = this.ProjectService.getNodeById(this.nodeId);
-        this.isPlanningInstance = this.ProjectService.isPlanningInstance(this.nodeId);
+        this.isPlanningInstance = this.PlanningService.isPlanningInstance(this.nodeId);
 
         this.parentGroupId = null;
 
@@ -61,7 +62,7 @@ var NavItemController = function () {
 
         if (parentGroup != null) {
             this.parentGroupId = parentGroup.id;
-            this.isParentGroupPlanning = this.ProjectService.isPlanning(this.parentGroupId);
+            this.isParentGroupPlanning = this.PlanningService.isPlanning(this.parentGroupId);
         }
 
         if (this.isPlanning) {
@@ -69,7 +70,7 @@ var NavItemController = function () {
              * planning is enabled so we will get the available planning
              * nodes that can be used in this group
              */
-            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.nodeId);
+            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.nodeId);
         }
 
         if (this.isParentGroupPlanning) {
@@ -83,7 +84,7 @@ var NavItemController = function () {
              * planning is enabled so we will get the available planning
              * nodes that can be used in this group
              */
-            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.parentGroupId);
+            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.parentGroupId);
 
             this.$scope.$watch(function () {
                 // watch the position of this node
@@ -186,7 +187,7 @@ var NavItemController = function () {
                 }
 
                 var nodeId = el.getAttribute('data-nodeid');
-                return _this.ProjectService.isPlanningInstance(nodeId);
+                return _this.PlanningService.isPlanningInstance(nodeId);
             }
         });
 
@@ -360,10 +361,10 @@ var NavItemController = function () {
         value: function addPlanningNodeInstanceInside(nodeIdToInsertInside, templateNodeId) {
             // create the planning node instance
             var nextAvailablePlanningNodeId = this.StudentDataService.getNextAvailablePlanningNodeId();
-            var planningNodeInstance = this.ProjectService.createPlanningNodeInstance(nodeIdToInsertInside, templateNodeId, nextAvailablePlanningNodeId);
+            var planningNodeInstance = this.PlanningService.createPlanningNodeInstance(templateNodeId, nextAvailablePlanningNodeId);
 
             // add the planning node instance inside
-            this.ProjectService.addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance);
+            this.PlanningService.addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance);
 
             /*
              * update the node statuses so that a node status is created for
@@ -448,10 +449,10 @@ var NavItemController = function () {
 
                 // create the planning node instance
                 var nextAvailablePlanningNodeId = this.StudentDataService.getNextAvailablePlanningNodeId();
-                var planningNodeInstance = this.ProjectService.createPlanningNodeInstance(parentGroupId, templateNodeId, nextAvailablePlanningNodeId);
+                var planningNodeInstance = this.PlanningService.createPlanningNodeInstance(templateNodeId, nextAvailablePlanningNodeId);
 
                 // insert planning node instance after
-                this.ProjectService.addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance);
+                this.PlanningService.addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance);
 
                 /*
                  * update the node statuses so that a node status is created for
@@ -547,47 +548,6 @@ var NavItemController = function () {
          * @param otherNodeId the other node we will move this node inside or after
          */
 
-    }, {
-        key: 'movePlanningNode0',
-        value: function movePlanningNode0(otherNodeId) {
-
-            /*
-             * check that this node is not the same as the other node.
-             * if they are the same we don't need to do anything.
-             */
-            if (this.nodeId != otherNodeId) {
-                if (this.ProjectService.isGroupNode(otherNodeId)) {
-                    // insert this node inside the group node
-                    this.ProjectService.movePlanningNodeInstanceInside(this.nodeId, otherNodeId);
-                } else {
-                    // insert this node after the other node
-                    this.ProjectService.movePlanningNodeInstanceAfter(this.nodeId, otherNodeId);
-                }
-
-                // Save move planning node event
-                var componentId = null;
-                var componentType = null;
-                var category = "Planning";
-                var eventName = "planningNodeMoved";
-                var eventData = {
-                    nodeIdMoved: this.nodeId,
-                    nodeIdMovedInsideOrAfter: otherNodeId
-                };
-                var eventNodeId = this.nodeId;
-                this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);
-            }
-
-            // perform any necessary updating
-            this.planningNodeChanged();
-        }
-
-        /**
-         * Move the planning node. If the other node is a group node, we will
-         * insert this node as the first node in the group. If the other node is
-         * a step node, we will insert this node after the other node.
-         * @param otherNodeId the other node we will move this node inside or after
-         */
-
     }, {
         key: 'movePlanningNode',
         value: function movePlanningNode(nodeIdToMove, nodeIdToMoveAfter) {
@@ -598,11 +558,9 @@ var NavItemController = function () {
              */
             if (nodeIdToMove != nodeIdToMoveAfter) {
                 if (this.ProjectService.isGroupNode(nodeIdToMoveAfter)) {
-                    // insert this node inside the group node
-                    this.ProjectService.movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToMoveAfter);
+                    this.PlanningService.movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToMoveAfter);
                 } else {
-                    // insert this node after the other node
-                    this.ProjectService.movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToMoveAfter);
+                    this.PlanningService.movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToMoveAfter);
                 }
             }
 
@@ -721,7 +679,7 @@ var NavItemController = function () {
     return NavItemController;
 }();
 
-NavItemController.$inject = ['$filter', '$rootScope', '$scope', '$element', 'dragulaService', 'NodeService', 'ProjectService', 'StudentDataService', '$mdDialog'];
+NavItemController.$inject = ['$filter', '$rootScope', '$scope', '$element', 'dragulaService', 'NodeService', 'PlanningService', 'ProjectService', 'StudentDataService', '$mdDialog'];
 
 exports.default = NavItemController;
-//# sourceMappingURL=navItemController.js.map
\ No newline at end of file
+//# sourceMappingURL=navItemController.js.map
diff --git a/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.js.map b/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.js.map
index 0f3a443241..1abcd891f9 100644
--- a/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.js.map
+++ b/src/main/webapp/wise5/themes/default/themeComponents/navItem/navItemController.js.map
@@ -1 +1 @@
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strict\";\n\nclass NavItemController {\n    constructor($filter,\n                $rootScope,\n                $scope,\n                $element,\n                dragulaService,\n                NodeService,\n                ProjectService,\n                StudentDataService,\n                $mdDialog) {\n\n        this.$filter = $filter;\n        this.$rootScope = $rootScope;\n        this.$scope = $scope;\n        this.$element = $element;\n        this.dragulaService = dragulaService;\n        this.NodeService = NodeService;\n        this.ProjectService = ProjectService;\n        this.StudentDataService = StudentDataService;\n        this.$mdDialog = $mdDialog;\n        this.$translate = this.$filter('translate');\n        this.autoScroll = require('dom-autoscroller');\n\n        this.expanded = false;\n\n        this.item = this.ProjectService.idToNode[this.nodeId];\n        this.isGroup = this.ProjectService.isGroupNode(this.nodeId);\n        this.nodeStatuses = this.StudentDataService.nodeStatuses;\n        this.nodeStatus = this.nodeStatuses[this.nodeId];\n\n        this.nodeTitle = this.showPosition ? (this.ProjectService.nodeIdToNumber[this.nodeId] + ': ' + this.item.title) : this.item.title;\n        this.currentNode = this.StudentDataService.currentNode;\n        this.previousNode = null;\n        this.isCurrentNode = (this.currentNode.id === this.nodeId);\n\n        // whether this node is a planning node\n        this.isPlanning = this.ProjectService.isPlanning(this.nodeId);\n\n        // the array of nodes used for drag/drop planning sorting\n        this.availablePlanningNodes = [];\n\n        // whether the node is a planning node instance\n        this.node = this.ProjectService.getNodeById(this.nodeId);\n        this.isPlanningInstance = this.ProjectService.isPlanningInstance(this.nodeId);\n\n        this.parentGroupId = null;\n\n        /*\n         * whether planning mode is on or off which determines if students\n         * can edit planning related aspects of the project such as adding,\n         * moving, or deleting planning steps.\n         */\n        this.planningMode = false;\n\n        var parentGroup = this.ProjectService.getParentGroup(this.nodeId);\n\n        if (parentGroup != null) {\n            this.parentGroupId = parentGroup.id;\n            this.isParentGroupPlanning = this.ProjectService.isPlanning(this.parentGroupId);\n        }\n\n        if (this.isPlanning) {\n            /*\n             * planning is enabled so we will get the available planning\n             * nodes that can be used in this group\n             */\n            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.nodeId);\n        }\n\n        if (this.isParentGroupPlanning) {\n\n            if (parentGroup.planningMode) {\n                // the parent is currently in planning mode\n                this.planningMode = true;\n            }\n\n            /*\n             * planning is enabled so we will get the available planning\n             * nodes that can be used in this group\n             */\n            this.availablePlanningNodes = this.ProjectService.getAvailablePlanningNodes(this.parentGroupId);\n\n            this.$scope.$watch(\n                () => {\n                    // watch the position of this node\n                    return this.ProjectService.nodeIdToNumber[this.nodeId];\n                },\n                (value) => {\n                    // the position has changed for this node so we will update it in the UI\n                    this.nodeTitle = this.showPosition ? (this.ProjectService.nodeIdToNumber[this.nodeId] + ': ' + this.item.title) : this.item.title;\n                }\n            );\n        }\n\n        this.$scope.$watch(\n            () => { return this.StudentDataService.currentNode; },\n            (newNode, oldNode) => {\n                this.currentNode = newNode;\n                this.previousNode = oldNode;\n                this.isCurrentNode = (this.nodeId === newNode.id);\n                let isPrev = false;\n\n                if (this.ProjectService.isApplicationNode(newNode.id)) {\n                    return;\n                }\n\n                if (oldNode) {\n                    isPrev = (this.nodeId === oldNode.id);\n\n                    if (this.StudentDataService.previousStep) {\n                        this.$scope.$parent.isPrevStep = (this.nodeId === this.StudentDataService.previousStep.id);\n                    }\n                }\n\n                if (this.isGroup) {\n                    let prevNodeisGroup = (!oldNode || this.ProjectService.isGroupNode(oldNode.id));\n                    let prevNodeIsDescendant = this.ProjectService.isNodeDescendentOfGroup(oldNode, this.item);\n                    if (this.isCurrentNode) {\n                        this.expanded = true;\n                        if (prevNodeisGroup || !prevNodeIsDescendant) {\n                            this.zoomToElement();\n                        }\n                    } else {\n                        if (!prevNodeisGroup) {\n                            if (prevNodeIsDescendant) {\n                                this.expanded = true;\n                            } else {\n                                this.expanded = false;\n                            }\n                        }\n                    }\n                } else {\n                    if (isPrev && this.ProjectService.isNodeDescendentOfGroup(this.item, newNode)) {\n                        this.zoomToElement();\n                    }\n                }\n            }\n        );\n\n        this.$scope.$watch(\n            () => { return this.expanded; },\n            (value) => {\n                this.$scope.$parent.itemExpanded = value;\n            }\n        );\n\n        this.$scope.$watch(\n            () => { return this.planningMode; },\n            (value) => {\n                this.$scope.$parent.planningMode = value;\n            }\n        );\n\n        // a group node has turned on or off planning mode\n        this.$rootScope.$on('togglePlanningMode', (event, args) => {\n\n            // get the group node that has had its planning node changed\n            let planningModeClickedNodeId = args.nodeId;\n            let planningMode = args.planningMode;\n\n            // get this node's parent group\n            let parentGroup = this.ProjectService.getParentGroup(this.nodeId);\n            let parentGroupId = null;\n\n            if (parentGroup != null) {\n                parentGroupId = parentGroup.id;\n            }\n\n            if (parentGroupId == planningModeClickedNodeId) {\n                // the parent of this node has changed their planning mode\n                this.planningMode = planningMode;\n            }\n        });\n\n        let dragId = 'planning_' + this.nodeId ;\n        // handle item drop events\n        let dropEvent = dragId + '.drop-model';\n        this.$scope.$on(dropEvent, (el, target, source) => {\n            let nodeChangedId = target.data().nodeid;\n            this.planningNodeItemsChanged(nodeChangedId);\n        });\n\n        this.dragulaService.options(this.$scope, dragId, {\n            moves: (el, source, handle, sibling) => {\n                if (!this.planningMode) {\n                    return false;\n                }\n\n                let nodeId = el.getAttribute('data-nodeid');\n                return this.ProjectService.isPlanningInstance(nodeId);\n            }\n        });\n\n        let drake = dragulaService.find(this.$scope, dragId).drake;\n\n        // support scroll while dragging\n        let scroll = this.autoScroll(\n            [document.querySelector('#content')], {\n            margin: 30,\n            pixels: 50,\n            scrollWhenOutside: true,\n            autoScroll: function() {\n                // Only scroll when the pointer is down, and there is a child being dragged\n                return this.down && drake.dragging;\n            }\n        });\n    }\n\n    getTemplateUrl(){\n        return this.ProjectService.getThemePath() + '/themeComponents/navItem/navItem.html';\n    };\n\n    zoomToElement() {\n        setTimeout(()=> {\n            // smooth scroll to expanded group's page location\n            let top = this.$element[0].offsetTop;\n            let location = this.isGroup ? top - 32 : top - 80;\n            let delay = 350;\n            $('#content').animate({\n                scrollTop: location\n            }, delay, 'linear');\n        }, 500);\n    };\n\n    itemClicked(event) {\n        if (this.isGroup) {\n            this.expanded = !this.expanded;\n            if (this.expanded) {\n                if (this.isCurrentNode) {\n                    this.zoomToElement();\n                } else {\n                    this.StudentDataService.endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\n                }\n            }\n        } else {\n            if (this.StudentDataService.planningMode) {\n                // Don't allow students to enter planning steps while in planning mode\n                this.$mdDialog.show(\n                    this.$mdDialog.alert()\n                        .title(this.$translate('itemLocked'))\n                        .textContent(this.$translate('planningModeStepsUnVisitable'))\n                        .ariaLabel(this.$translate('itemLocked'))\n                        .ok(this.$translate('ok'))\n                        .targetEvent(event)\n                );\n            } else {\n                this.StudentDataService.endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\n            }\n        }\n    };\n\n    /**\n     * Save an event when planning node is added\n     * @param planningNodeAdded\n     */\n    savePlanningNodeAddedEvent(planningNodeAdded) {\n        let componentId = null;\n        let componentType = null;\n        let category = \"Planning\";\n        let eventName = \"planningNodeAdded\";\n        let eventData = {\n            nodeIdAdded: planningNodeAdded.id,\n            planningNodeTemplateId: planningNodeAdded.planningNodeTemplateId\n        };\n        let eventNodeId = this.nodeId;\n        this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);\n    };\n\n    /**\n     * Returns the max times a planning node can be added to the project (-1 is\n     * is returned if there is no limit)\n     * @param planningNodeId\n     */\n    getPlannindNodeMaxAllowed(planningNodeId) {\n        let maxAddAllowed = -1;  // by default, students can add as many instances as they want\n        let planningGroupNode = null;\n        if (this.isParentGroupPlanning) {\n            planningGroupNode = this.ProjectService.getNodeById(this.parentGroupId);\n        } else {\n            planningGroupNode = this.ProjectService.getNodeById(this.nodeId);\n        }\n        // get the maxAddAllowed value by looking up the planningNode in the project.\n        if (planningGroupNode && planningGroupNode.availablePlanningNodes) {\n            for (let a = 0; a < planningGroupNode.availablePlanningNodes.length; a++) {\n                let availablePlanningNode = planningGroupNode.availablePlanningNodes[a];\n                if (availablePlanningNode.nodeId === planningNodeId && availablePlanningNode.max != null) {\n                    maxAddAllowed = availablePlanningNode.max;\n                }\n            }\n        }\n\n        return maxAddAllowed;\n    };\n\n    /**\n     * Returns the number of times a planning node has been added to the project\n     * @param planningNodeId\n     */\n    getNumPlannindNodeInstances(planningNodeId) {\n        let numPlanningNodesAdded = 0;  // keep track of number of instances\n        // otherwise, see how many times the planning node template has been used.\n\n        let planningGroupNode = null;\n        if (this.isParentGroupPlanning) {\n            planningGroupNode = this.ProjectService.getNodeById(this.parentGroupId);\n        } else {\n            planningGroupNode = this.ProjectService.getNodeById(this.nodeId);\n        }\n\n        // loop through the child ids in the planning group and see how many times they've been used\n        if (planningGroupNode && planningGroupNode.ids) {\n            for (let c = 0; c < planningGroupNode.ids.length; c++) {\n                let childPlanningNodeId = planningGroupNode.ids[c];\n                let childPlanningNode = this.ProjectService.getNodeById(childPlanningNodeId);\n                if (childPlanningNode != null && childPlanningNode.planningNodeTemplateId === planningNodeId) {\n                    numPlanningNodesAdded++;\n                }\n            }\n        }\n\n        return numPlanningNodesAdded;\n    };\n\n    /**\n     * Returns true iff this student can add the specified planning node.\n     * Limits include reaching the max allowed count\n     * @param planningNodeId\n     */\n    canAddPlanningNode(planningNodeId) {\n        let maxAddAllowed = this.getPlannindNodeMaxAllowed(planningNodeId);\n\n        // if maxAddAllowed was not found or is set to 0, it means students can add as many as they want\n        if (maxAddAllowed < 1) {\n            return true;\n        }\n\n        let numPlanningNodesAdded = this.getNumPlannindNodeInstances(planningNodeId);\n\n        return numPlanningNodesAdded < maxAddAllowed;\n    };\n\n    /**\n     * Create a planning node instance and add it to the project\n     * @param groupId the group the new planning node instance will be added to\n     * @param templateNodeId the node id of the planning node template\n     * @returns the planning node instance\n     */\n    addPlanningNodeInstanceInside(nodeIdToInsertInside, templateNodeId) {\n        // create the planning node instance\n        let nextAvailablePlanningNodeId = this.StudentDataService.getNextAvailablePlanningNodeId();\n        let planningNodeInstance = this.ProjectService.createPlanningNodeInstance(nodeIdToInsertInside, templateNodeId, nextAvailablePlanningNodeId);\n\n        // add the planning node instance inside\n        this.ProjectService.addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance);\n\n        /*\n         * update the node statuses so that a node status is created for\n         * the new planning node instance\n         */\n        this.StudentDataService.updateNodeStatuses();\n\n        // perform any necessary updating\n        this.planningNodeChanged();\n\n        // Save add planning node event\n        this.savePlanningNodeAddedEvent(planningNodeInstance);\n\n        return planningNodeInstance;\n    }\n\n    /**\n     * Open the planning mode select dialog to choose a planning node template\n     * to create a new planning instance\n     * @param event the trigger event\n     * @param targetNodeId the node to insert the new planning instance after or inside\n     * @param insertInside boolean whether to insert the new planning instance\n     * inside the target node (optional; default is after)\n     */\n    addPlanningInstance(event, targetNodeId, insertInside) {\n        // show dialog with list of planning nodes user can add to current group\n\n        let choosePlanningItemTemplateUrl = this.ProjectService.getThemePath() + '/themeComponents/navItem/choosePlanningItem.html';\n        let navitemCtrl = this;\n\n        this.$mdDialog.show({\n            parent: angular.element(document.body),\n            locals: {\n                targetNodeId: targetNodeId,\n                insertInside: insertInside,\n                navitemCtrl: navitemCtrl,\n            },\n            templateUrl: choosePlanningItemTemplateUrl,\n            targetEvent: event,\n            controller: ChoosePlanningItemController\n        });\n\n        function ChoosePlanningItemController($scope, $mdDialog, targetNodeId, insertInside, navitemCtrl) {\n            $scope.navitemCtrl = navitemCtrl;\n            $scope.targetNodeId = targetNodeId;\n            $scope.insertInside = insertInside;\n\n            $scope.addSelectedPlanningInstance = (templateNodeId) => {\n                if ($scope.insertInside) {\n                    $scope.navitemCtrl.addPlanningNodeInstanceInside($scope.targetNodeId, templateNodeId);\n                } else {\n                    $scope.navitemCtrl.addPlanningNodeInstanceAfter($scope.targetNodeId, templateNodeId);\n                }\n\n                $mdDialog.hide();\n            };\n\n            $scope.close = () => {\n                $mdDialog.hide();\n            };\n        }\n        ChoosePlanningItemController.$inject = [\"$scope\", \"$mdDialog\", \"targetNodeId\", \"insertInside\", \"navitemCtrl\"];\n    };\n\n    /**\n     * Create a planning node instance and add it to the project after the specified nodeId\n     * @param groupId the group the new planning node instance will be added to\n     * @param nodeId the node id of the planning node template\n     */\n    addPlanningNodeInstanceAfter(nodeIdToInsertAfter, templateNodeId) {\n\n        var parentGroup = this.ProjectService.getParentGroup(nodeIdToInsertAfter);\n\n        if (parentGroup != null) {\n            var parentGroupId = parentGroup.id;\n\n            // create the planning node instance\n            let nextAvailablePlanningNodeId = this.StudentDataService.getNextAvailablePlanningNodeId();\n            let planningNodeInstance = this.ProjectService.createPlanningNodeInstance(parentGroupId, templateNodeId, nextAvailablePlanningNodeId);\n\n            // insert planning node instance after\n            this.ProjectService.addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance);\n\n            /*\n             * update the node statuses so that a node status is created for\n             * the new planning node instance\n             */\n            this.StudentDataService.updateNodeStatuses();\n\n            // perform any necessary updating\n            this.planningNodeChanged();\n\n            // Save add planning node event\n            this.savePlanningNodeAddedEvent(planningNodeInstance);\n\n            return planningNodeInstance;\n        }\n    }\n\n    /**\n     * Remove the planning node instance\n     * @param planningNodeInstanceNodeId the planning node instance to remove\n     * @param event the event that triggered the function call\n     */\n    removePlanningNodeInstance(planningNodeInstanceNodeId, event) {\n        let confirm = this.$mdDialog.confirm()\n            .parent(angular.element(document.body))\n            .title(this.$translate('areYouSureYouWantToDeleteThisItem'))\n            .textContent(this.$translate('noteAnyWorkYouHaveDoneOnThisItemWillBeLost'))\n            .ariaLabel(this.$translate('deleteItemFromProject'))\n            .targetEvent(event)\n            .ok(this.$translate('yes'))\n            .cancel(this.$translate('no'));\n\n        this.$mdDialog.show(confirm).then(() => {\n            // delete the node from the project\n            this.ProjectService.deleteNode(planningNodeInstanceNodeId);\n\n            // perform any necessary updating\n            this.planningNodeChanged(this.parentGroupId);\n\n            // Save remove planning node event\n            let componentId = null;\n            let componentType = null;\n            let category = \"Planning\";\n            let eventName = \"planningNodeRemoved\";\n            let eventData = {\n                nodeIdRemoved: planningNodeInstanceNodeId\n            };\n            let eventNodeId = this.nodeId;\n            this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);\n        }, () => {});\n    }\n\n    /**\n     * Get the node title\n     * @param nodeId get the title for this node\n     * @returns the title for the node\n     */\n    getNodeTitle(nodeId) {\n        var node = this.ProjectService.idToNode[nodeId];\n        var title = null;\n\n        if (node != null) {\n            title = node.title;\n        }\n\n        return title;\n    }\n\n    /**\n     * Get the node description\n     * @param nodeId get the description for this node\n     * @returns the description for the node\n     */\n    getNodeDescription(nodeId) {\n        var node = this.ProjectService.idToNode[nodeId];\n        var description = null;\n\n        if (node != null) {\n            description = node.description;\n        }\n\n        return description;\n    }\n\n    /**\n     * Move the planning node. If the other node is a group node, we will\n     * insert this node as the first node in the group. If the other node is\n     * a step node, we will insert this node after the other node.\n     * @param otherNodeId the other node we will move this node inside or after\n     */\n    movePlanningNode0(otherNodeId) {\n\n        /*\n         * check that this node is not the same as the other node.\n         * if they are the same we don't need to do anything.\n         */\n        if (this.nodeId != otherNodeId) {\n            if (this.ProjectService.isGroupNode(otherNodeId)) {\n                // insert this node inside the group node\n                this.ProjectService.movePlanningNodeInstanceInside(this.nodeId, otherNodeId);\n            } else {\n                // insert this node after the other node\n                this.ProjectService.movePlanningNodeInstanceAfter(this.nodeId, otherNodeId);\n            }\n\n            // Save move planning node event\n            let componentId = null;\n            let componentType = null;\n            let category = \"Planning\";\n            let eventName = \"planningNodeMoved\";\n            let eventData = {\n                nodeIdMoved: this.nodeId,\n                nodeIdMovedInsideOrAfter: otherNodeId\n            };\n            let eventNodeId = this.nodeId;\n            this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);\n        }\n\n        // perform any necessary updating\n        this.planningNodeChanged();\n    }\n\n    /**\n     * Move the planning node. If the other node is a group node, we will\n     * insert this node as the first node in the group. If the other node is\n     * a step node, we will insert this node after the other node.\n     * @param otherNodeId the other node we will move this node inside or after\n     */\n    movePlanningNode(nodeIdToMove, nodeIdToMoveAfter) {\n\n        /*\n         * check that this node is not the same as the other node.\n         * if they are the same we don't need to do anything.\n         */\n        if (nodeIdToMove != nodeIdToMoveAfter) {\n            if (this.ProjectService.isGroupNode(nodeIdToMoveAfter)) {\n                // insert this node inside the group node\n                this.ProjectService.movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToMoveAfter);\n            } else {\n                // insert this node after the other node\n                this.ProjectService.movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToMoveAfter);\n            }\n        }\n\n        // perform any necessary updating\n        this.planningNodeChanged();\n    }\n\n    /**\n     * Something related to planning has changed in the project. This\n     * means a planning node was added, moved, or deleted.\n     * @param param planningNodeId planning node id\n     */\n    planningNodeChanged(planningNodeId) {\n        this.savePlanningNodeChanges(planningNodeId);\n\n        this.$rootScope.$broadcast('planningNodeChanged');\n    }\n\n    /**\n    * Save the changed nodes in NodeState\n    * @param param planningNodeId planning node id\n    **/\n    savePlanningNodeChanges(planningNodeId) {\n        let nodeState = this.NodeService.createNewNodeState();\n        let nodeId = planningNodeId ? planningNodeId : this.nodeId;\n        nodeState.nodeId = nodeId;\n        nodeState.isAutoSave = false;\n        nodeState.isSubmit = false;\n\n        var studentData = {};\n        studentData.nodeId = nodeId;\n        studentData.nodes = [];\n        let planningNode = this.ProjectService.getNodeById(nodeId);\n        studentData.nodes.push(planningNode);  // add the planning node (group)\n        // loop through the child ids in the planning group and save them also\n        if (planningNode.ids != null) {\n            for (let c = 0; c < planningNode.ids.length; c++) {\n                let childPlanningNodeId = planningNode.ids[c];\n                let childPlanningNode = this.ProjectService.getNodeById(childPlanningNodeId);\n                studentData.nodes.push(childPlanningNode);\n            }\n        }\n\n        nodeState.studentData = studentData;\n        var nodeStates = [];\n        nodeStates.push(nodeState);\n        this.StudentDataService.saveNodeStates(nodeStates);\n    }\n\n    /**\n     * Toggle the planning mode on and off. Notify child nodes that\n     * the planning mode has changed so they can act accordingly.\n     */\n    togglePlanningMode() {\n        /*if (this.StudentDataService.planningMode && !this.item.planningMode) {\n            // Don't allow multiple concurrent planning modes.\n            this.$translate('planningModeOnlyOnePlanningModeAllowed').then((planningModeOnlyOnePlanningModeAllowed) => {\n                alert(planningModeOnlyOnePlanningModeAllowed);\n            });\n\n            return;\n        }*/\n\n        // toggle the planning mode\n        //this.planningMode = !this.planningMode;\n        this.item.planningMode = this.planningMode;\n\n        // also toggle StudentDataService planning mode. This will be used to constrain the entire project when in planning mode.\n        this.StudentDataService.planningMode = this.planningMode;\n\n        // Save planning mode on/off event\n        let componentId = null;\n        let componentType = null;\n        let category = \"Planning\";\n        let eventName = this.planningMode ? \"planningModeOn\" : \"planningModeOff\";\n        let eventData = {\n            nodeId: this.nodeId\n        };\n        let eventNodeId = this.nodeId;\n        this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);\n\n        // notify the child nodes that the planning mode of this group node has changed\n        this.$rootScope.$broadcast('togglePlanningMode', { nodeId: this.nodeId, planningMode: this.planningMode });\n    }\n\n    /**\n     * The planning node's items array has changed\n     * @param newValue the new value of the planning node's items array\n     * @param oldValue the old value of the planning node's items array\n     */\n    planningNodeItemsChanged(nodeChangedId) {\n        let index = this.item.ids.indexOf(nodeChangedId);\n        let nodeIdAddedAfter = this.item.ids[index-1];\n\n        if (nodeIdAddedAfter) {\n            // the node was moved after another node in the group\n            this.movePlanningNode(nodeChangedId, nodeIdAddedAfter);\n        } else {\n            // the node was moved to the beginning of the group\n            this.movePlanningNode(nodeChangedId, this.nodeId);\n        }\n    };\n}\n\nNavItemController.$inject = [\n    '$filter',\n    '$rootScope',\n    '$scope',\n    '$element',\n    'dragulaService',\n    'NodeService',\n    'ProjectService',\n    'StudentDataService',\n    '$mdDialog'\n];\n\nexport default NavItemController;\n"]}
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strict\";\n\nclass NavItemController {\n    constructor($filter,\n                $rootScope,\n                $scope,\n                $element,\n                dragulaService,\n                NodeService,\n                PlanningService,\n                ProjectService,\n                StudentDataService,\n                $mdDialog) {\n\n        this.$filter = $filter;\n        this.$rootScope = $rootScope;\n        this.$scope = $scope;\n        this.$element = $element;\n        this.dragulaService = dragulaService;\n        this.NodeService = NodeService;\n        this.PlanningService = PlanningService;\n        this.ProjectService = ProjectService;\n        this.StudentDataService = StudentDataService;\n        this.$mdDialog = $mdDialog;\n        this.$translate = this.$filter('translate');\n        this.autoScroll = require('dom-autoscroller');\n\n        this.expanded = false;\n\n        this.item = this.ProjectService.idToNode[this.nodeId];\n        this.isGroup = this.ProjectService.isGroupNode(this.nodeId);\n        this.nodeStatuses = this.StudentDataService.nodeStatuses;\n        this.nodeStatus = this.nodeStatuses[this.nodeId];\n\n        this.nodeTitle = this.showPosition ? (this.ProjectService.nodeIdToNumber[this.nodeId] + ': ' + this.item.title) : this.item.title;\n        this.currentNode = this.StudentDataService.currentNode;\n        this.previousNode = null;\n        this.isCurrentNode = (this.currentNode.id === this.nodeId);\n\n        // whether this node is a planning node\n        this.isPlanning = this.PlanningService.isPlanning(this.nodeId);\n\n        // the array of nodes used for drag/drop planning sorting\n        this.availablePlanningNodes = [];\n\n        // whether the node is a planning node instance\n        this.node = this.ProjectService.getNodeById(this.nodeId);\n        this.isPlanningInstance = this.PlanningService.isPlanningInstance(this.nodeId);\n\n        this.parentGroupId = null;\n\n        /*\n         * whether planning mode is on or off which determines if students\n         * can edit planning related aspects of the project such as adding,\n         * moving, or deleting planning steps.\n         */\n        this.planningMode = false;\n\n        var parentGroup = this.ProjectService.getParentGroup(this.nodeId);\n\n        if (parentGroup != null) {\n            this.parentGroupId = parentGroup.id;\n            this.isParentGroupPlanning = this.PlanningService.isPlanning(this.parentGroupId);\n        }\n\n        if (this.isPlanning) {\n            /*\n             * planning is enabled so we will get the available planning\n             * nodes that can be used in this group\n             */\n            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.nodeId);\n        }\n\n        if (this.isParentGroupPlanning) {\n\n            if (parentGroup.planningMode) {\n                // the parent is currently in planning mode\n                this.planningMode = true;\n            }\n\n            /*\n             * planning is enabled so we will get the available planning\n             * nodes that can be used in this group\n             */\n            this.availablePlanningNodes = this.PlanningService.getAvailablePlanningNodes(this.parentGroupId);\n\n            this.$scope.$watch(\n                () => {\n                    // watch the position of this node\n                    return this.ProjectService.nodeIdToNumber[this.nodeId];\n                },\n                (value) => {\n                    // the position has changed for this node so we will update it in the UI\n                    this.nodeTitle = this.showPosition ? (this.ProjectService.nodeIdToNumber[this.nodeId] + ': ' + this.item.title) : this.item.title;\n                }\n            );\n        }\n\n        this.$scope.$watch(\n            () => { return this.StudentDataService.currentNode; },\n            (newNode, oldNode) => {\n                this.currentNode = newNode;\n                this.previousNode = oldNode;\n                this.isCurrentNode = (this.nodeId === newNode.id);\n                let isPrev = false;\n\n                if (this.ProjectService.isApplicationNode(newNode.id)) {\n                    return;\n                }\n\n                if (oldNode) {\n                    isPrev = (this.nodeId === oldNode.id);\n\n                    if (this.StudentDataService.previousStep) {\n                        this.$scope.$parent.isPrevStep = (this.nodeId === this.StudentDataService.previousStep.id);\n                    }\n                }\n\n                if (this.isGroup) {\n                    let prevNodeisGroup = (!oldNode || this.ProjectService.isGroupNode(oldNode.id));\n                    let prevNodeIsDescendant = this.ProjectService.isNodeDescendentOfGroup(oldNode, this.item);\n                    if (this.isCurrentNode) {\n                        this.expanded = true;\n                        if (prevNodeisGroup || !prevNodeIsDescendant) {\n                            this.zoomToElement();\n                        }\n                    } else {\n                        if (!prevNodeisGroup) {\n                            if (prevNodeIsDescendant) {\n                                this.expanded = true;\n                            } else {\n                                this.expanded = false;\n                            }\n                        }\n                    }\n                } else {\n                    if (isPrev && this.ProjectService.isNodeDescendentOfGroup(this.item, newNode)) {\n                        this.zoomToElement();\n                    }\n                }\n            }\n        );\n\n        this.$scope.$watch(\n            () => { return this.expanded; },\n            (value) => {\n                this.$scope.$parent.itemExpanded = value;\n            }\n        );\n\n        this.$scope.$watch(\n            () => { return this.planningMode; },\n            (value) => {\n                this.$scope.$parent.planningMode = value;\n            }\n        );\n\n        // a group node has turned on or off planning mode\n        this.$rootScope.$on('togglePlanningMode', (event, args) => {\n\n            // get the group node that has had its planning node changed\n            let planningModeClickedNodeId = args.nodeId;\n            let planningMode = args.planningMode;\n\n            // get this node's parent group\n            let parentGroup = this.ProjectService.getParentGroup(this.nodeId);\n            let parentGroupId = null;\n\n            if (parentGroup != null) {\n                parentGroupId = parentGroup.id;\n            }\n\n            if (parentGroupId == planningModeClickedNodeId) {\n                // the parent of this node has changed their planning mode\n                this.planningMode = planningMode;\n            }\n        });\n\n        let dragId = 'planning_' + this.nodeId ;\n        // handle item drop events\n        let dropEvent = dragId + '.drop-model';\n        this.$scope.$on(dropEvent, (el, target, source) => {\n            let nodeChangedId = target.data().nodeid;\n            this.planningNodeItemsChanged(nodeChangedId);\n        });\n\n        this.dragulaService.options(this.$scope, dragId, {\n            moves: (el, source, handle, sibling) => {\n                if (!this.planningMode) {\n                    return false;\n                }\n\n                let nodeId = el.getAttribute('data-nodeid');\n                return this.PlanningService.isPlanningInstance(nodeId);\n            }\n        });\n\n        let drake = dragulaService.find(this.$scope, dragId).drake;\n\n        // support scroll while dragging\n        let scroll = this.autoScroll(\n            [document.querySelector('#content')], {\n            margin: 30,\n            pixels: 50,\n            scrollWhenOutside: true,\n            autoScroll: function() {\n                // Only scroll when the pointer is down, and there is a child being dragged\n                return this.down && drake.dragging;\n            }\n        });\n    }\n\n    getTemplateUrl(){\n        return this.ProjectService.getThemePath() + '/themeComponents/navItem/navItem.html';\n    };\n\n    zoomToElement() {\n        setTimeout(()=> {\n            // smooth scroll to expanded group's page location\n            let top = this.$element[0].offsetTop;\n            let location = this.isGroup ? top - 32 : top - 80;\n            let delay = 350;\n            $('#content').animate({\n                scrollTop: location\n            }, delay, 'linear');\n        }, 500);\n    };\n\n    itemClicked(event) {\n        if (this.isGroup) {\n            this.expanded = !this.expanded;\n            if (this.expanded) {\n                if (this.isCurrentNode) {\n                    this.zoomToElement();\n                } else {\n                    this.StudentDataService.endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\n                }\n            }\n        } else {\n            if (this.StudentDataService.planningMode) {\n                // Don't allow students to enter planning steps while in planning mode\n                this.$mdDialog.show(\n                    this.$mdDialog.alert()\n                        .title(this.$translate('itemLocked'))\n                        .textContent(this.$translate('planningModeStepsUnVisitable'))\n                        .ariaLabel(this.$translate('itemLocked'))\n                        .ok(this.$translate('ok'))\n                        .targetEvent(event)\n                );\n            } else {\n                this.StudentDataService.endCurrentNodeAndSetCurrentNodeByNodeId(this.nodeId);\n            }\n        }\n    };\n\n    /**\n     * Save an event when planning node is added\n     * @param planningNodeAdded\n     */\n    savePlanningNodeAddedEvent(planningNodeAdded) {\n        let componentId = null;\n        let componentType = null;\n        let category = \"Planning\";\n        let eventName = \"planningNodeAdded\";\n        let eventData = {\n            nodeIdAdded: planningNodeAdded.id,\n            planningNodeTemplateId: planningNodeAdded.planningNodeTemplateId\n        };\n        let eventNodeId = this.nodeId;\n        this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);\n    };\n\n    /**\n     * Returns the max times a planning node can be added to the project (-1 is\n     * is returned if there is no limit)\n     * @param planningNodeId\n     */\n    getPlannindNodeMaxAllowed(planningNodeId) {\n        let maxAddAllowed = -1;  // by default, students can add as many instances as they want\n        let planningGroupNode = null;\n        if (this.isParentGroupPlanning) {\n            planningGroupNode = this.ProjectService.getNodeById(this.parentGroupId);\n        } else {\n            planningGroupNode = this.ProjectService.getNodeById(this.nodeId);\n        }\n        // get the maxAddAllowed value by looking up the planningNode in the project.\n        if (planningGroupNode && planningGroupNode.availablePlanningNodes) {\n            for (let a = 0; a < planningGroupNode.availablePlanningNodes.length; a++) {\n                let availablePlanningNode = planningGroupNode.availablePlanningNodes[a];\n                if (availablePlanningNode.nodeId === planningNodeId && availablePlanningNode.max != null) {\n                    maxAddAllowed = availablePlanningNode.max;\n                }\n            }\n        }\n\n        return maxAddAllowed;\n    };\n\n    /**\n     * Returns the number of times a planning node has been added to the project\n     * @param planningNodeId\n     */\n    getNumPlannindNodeInstances(planningNodeId) {\n        let numPlanningNodesAdded = 0;  // keep track of number of instances\n        // otherwise, see how many times the planning node template has been used.\n\n        let planningGroupNode = null;\n        if (this.isParentGroupPlanning) {\n            planningGroupNode = this.ProjectService.getNodeById(this.parentGroupId);\n        } else {\n            planningGroupNode = this.ProjectService.getNodeById(this.nodeId);\n        }\n\n        // loop through the child ids in the planning group and see how many times they've been used\n        if (planningGroupNode && planningGroupNode.ids) {\n            for (let c = 0; c < planningGroupNode.ids.length; c++) {\n                let childPlanningNodeId = planningGroupNode.ids[c];\n                let childPlanningNode = this.ProjectService.getNodeById(childPlanningNodeId);\n                if (childPlanningNode != null && childPlanningNode.planningNodeTemplateId === planningNodeId) {\n                    numPlanningNodesAdded++;\n                }\n            }\n        }\n\n        return numPlanningNodesAdded;\n    };\n\n    /**\n     * Returns true iff this student can add the specified planning node.\n     * Limits include reaching the max allowed count\n     * @param planningNodeId\n     */\n    canAddPlanningNode(planningNodeId) {\n        let maxAddAllowed = this.getPlannindNodeMaxAllowed(planningNodeId);\n\n        // if maxAddAllowed was not found or is set to 0, it means students can add as many as they want\n        if (maxAddAllowed < 1) {\n            return true;\n        }\n\n        let numPlanningNodesAdded = this.getNumPlannindNodeInstances(planningNodeId);\n\n        return numPlanningNodesAdded < maxAddAllowed;\n    };\n\n    /**\n     * Create a planning node instance and add it to the project\n     * @param groupId the group the new planning node instance will be added to\n     * @param templateNodeId the node id of the planning node template\n     * @returns the planning node instance\n     */\n    addPlanningNodeInstanceInside(nodeIdToInsertInside, templateNodeId) {\n        // create the planning node instance\n        let nextAvailablePlanningNodeId = this.StudentDataService.getNextAvailablePlanningNodeId();\n        let planningNodeInstance = this.PlanningService.createPlanningNodeInstance(templateNodeId, nextAvailablePlanningNodeId);\n\n        // add the planning node instance inside\n        this.PlanningService.addPlanningNodeInstanceInside(nodeIdToInsertInside, planningNodeInstance);\n\n        /*\n         * update the node statuses so that a node status is created for\n         * the new planning node instance\n         */\n        this.StudentDataService.updateNodeStatuses();\n\n        // perform any necessary updating\n        this.planningNodeChanged();\n\n        // Save add planning node event\n        this.savePlanningNodeAddedEvent(planningNodeInstance);\n\n        return planningNodeInstance;\n    }\n\n    /**\n     * Open the planning mode select dialog to choose a planning node template\n     * to create a new planning instance\n     * @param event the trigger event\n     * @param targetNodeId the node to insert the new planning instance after or inside\n     * @param insertInside boolean whether to insert the new planning instance\n     * inside the target node (optional; default is after)\n     */\n    addPlanningInstance(event, targetNodeId, insertInside) {\n        // show dialog with list of planning nodes user can add to current group\n\n        let choosePlanningItemTemplateUrl = this.ProjectService.getThemePath() + '/themeComponents/navItem/choosePlanningItem.html';\n        let navitemCtrl = this;\n\n        this.$mdDialog.show({\n            parent: angular.element(document.body),\n            locals: {\n                targetNodeId: targetNodeId,\n                insertInside: insertInside,\n                navitemCtrl: navitemCtrl,\n            },\n            templateUrl: choosePlanningItemTemplateUrl,\n            targetEvent: event,\n            controller: ChoosePlanningItemController\n        });\n\n        function ChoosePlanningItemController($scope, $mdDialog, targetNodeId, insertInside, navitemCtrl) {\n            $scope.navitemCtrl = navitemCtrl;\n            $scope.targetNodeId = targetNodeId;\n            $scope.insertInside = insertInside;\n\n            $scope.addSelectedPlanningInstance = (templateNodeId) => {\n                if ($scope.insertInside) {\n                    $scope.navitemCtrl.addPlanningNodeInstanceInside($scope.targetNodeId, templateNodeId);\n                } else {\n                    $scope.navitemCtrl.addPlanningNodeInstanceAfter($scope.targetNodeId, templateNodeId);\n                }\n\n                $mdDialog.hide();\n            };\n\n            $scope.close = () => {\n                $mdDialog.hide();\n            };\n        }\n        ChoosePlanningItemController.$inject = [\"$scope\", \"$mdDialog\", \"targetNodeId\", \"insertInside\", \"navitemCtrl\"];\n    };\n\n    /**\n     * Create a planning node instance and add it to the project after the specified nodeId\n     * @param groupId the group the new planning node instance will be added to\n     * @param nodeId the node id of the planning node template\n     */\n    addPlanningNodeInstanceAfter(nodeIdToInsertAfter, templateNodeId) {\n\n        var parentGroup = this.ProjectService.getParentGroup(nodeIdToInsertAfter);\n\n        if (parentGroup != null) {\n            var parentGroupId = parentGroup.id;\n\n            // create the planning node instance\n            let nextAvailablePlanningNodeId = this.StudentDataService.getNextAvailablePlanningNodeId();\n            let planningNodeInstance = this.PlanningService.createPlanningNodeInstance(templateNodeId, nextAvailablePlanningNodeId);\n\n            // insert planning node instance after\n            this.PlanningService.addPlanningNodeInstanceAfter(nodeIdToInsertAfter, planningNodeInstance);\n\n            /*\n             * update the node statuses so that a node status is created for\n             * the new planning node instance\n             */\n            this.StudentDataService.updateNodeStatuses();\n\n            // perform any necessary updating\n            this.planningNodeChanged();\n\n            // Save add planning node event\n            this.savePlanningNodeAddedEvent(planningNodeInstance);\n\n            return planningNodeInstance;\n        }\n    }\n\n    /**\n     * Remove the planning node instance\n     * @param planningNodeInstanceNodeId the planning node instance to remove\n     * @param event the event that triggered the function call\n     */\n    removePlanningNodeInstance(planningNodeInstanceNodeId, event) {\n        let confirm = this.$mdDialog.confirm()\n            .parent(angular.element(document.body))\n            .title(this.$translate('areYouSureYouWantToDeleteThisItem'))\n            .textContent(this.$translate('noteAnyWorkYouHaveDoneOnThisItemWillBeLost'))\n            .ariaLabel(this.$translate('deleteItemFromProject'))\n            .targetEvent(event)\n            .ok(this.$translate('yes'))\n            .cancel(this.$translate('no'));\n\n        this.$mdDialog.show(confirm).then(() => {\n            // delete the node from the project\n            this.ProjectService.deleteNode(planningNodeInstanceNodeId);\n\n            // perform any necessary updating\n            this.planningNodeChanged(this.parentGroupId);\n\n            // Save remove planning node event\n            let componentId = null;\n            let componentType = null;\n            let category = \"Planning\";\n            let eventName = \"planningNodeRemoved\";\n            let eventData = {\n                nodeIdRemoved: planningNodeInstanceNodeId\n            };\n            let eventNodeId = this.nodeId;\n            this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);\n        }, () => {});\n    }\n\n    /**\n     * Get the node title\n     * @param nodeId get the title for this node\n     * @returns the title for the node\n     */\n    getNodeTitle(nodeId) {\n        var node = this.ProjectService.idToNode[nodeId];\n        var title = null;\n\n        if (node != null) {\n            title = node.title;\n        }\n\n        return title;\n    }\n\n    /**\n     * Get the node description\n     * @param nodeId get the description for this node\n     * @returns the description for the node\n     */\n    getNodeDescription(nodeId) {\n        var node = this.ProjectService.idToNode[nodeId];\n        var description = null;\n\n        if (node != null) {\n            description = node.description;\n        }\n\n        return description;\n    }\n\n    /**\n     * Move the planning node. If the other node is a group node, we will\n     * insert this node as the first node in the group. If the other node is\n     * a step node, we will insert this node after the other node.\n     * @param otherNodeId the other node we will move this node inside or after\n     */\n    movePlanningNode(nodeIdToMove, nodeIdToMoveAfter) {\n\n        /*\n         * check that this node is not the same as the other node.\n         * if they are the same we don't need to do anything.\n         */\n        if (nodeIdToMove != nodeIdToMoveAfter) {\n            if (this.ProjectService.isGroupNode(nodeIdToMoveAfter)) {\n                this.PlanningService.movePlanningNodeInstanceInside(nodeIdToMove, nodeIdToMoveAfter);\n            } else {\n                this.PlanningService.movePlanningNodeInstanceAfter(nodeIdToMove, nodeIdToMoveAfter);\n            }\n        }\n\n        // perform any necessary updating\n        this.planningNodeChanged();\n    }\n\n    /**\n     * Something related to planning has changed in the project. This\n     * means a planning node was added, moved, or deleted.\n     * @param param planningNodeId planning node id\n     */\n    planningNodeChanged(planningNodeId) {\n        this.savePlanningNodeChanges(planningNodeId);\n\n        this.$rootScope.$broadcast('planningNodeChanged');\n    }\n\n    /**\n    * Save the changed nodes in NodeState\n    * @param param planningNodeId planning node id\n    **/\n    savePlanningNodeChanges(planningNodeId) {\n        let nodeState = this.NodeService.createNewNodeState();\n        let nodeId = planningNodeId ? planningNodeId : this.nodeId;\n        nodeState.nodeId = nodeId;\n        nodeState.isAutoSave = false;\n        nodeState.isSubmit = false;\n\n        var studentData = {};\n        studentData.nodeId = nodeId;\n        studentData.nodes = [];\n        let planningNode = this.ProjectService.getNodeById(nodeId);\n        studentData.nodes.push(planningNode);  // add the planning node (group)\n        // loop through the child ids in the planning group and save them also\n        if (planningNode.ids != null) {\n            for (let c = 0; c < planningNode.ids.length; c++) {\n                let childPlanningNodeId = planningNode.ids[c];\n                let childPlanningNode = this.ProjectService.getNodeById(childPlanningNodeId);\n                studentData.nodes.push(childPlanningNode);\n            }\n        }\n\n        nodeState.studentData = studentData;\n        var nodeStates = [];\n        nodeStates.push(nodeState);\n        this.StudentDataService.saveNodeStates(nodeStates);\n    }\n\n    /**\n     * Toggle the planning mode on and off. Notify child nodes that\n     * the planning mode has changed so they can act accordingly.\n     */\n    togglePlanningMode() {\n        /*if (this.StudentDataService.planningMode && !this.item.planningMode) {\n            // Don't allow multiple concurrent planning modes.\n            this.$translate('planningModeOnlyOnePlanningModeAllowed').then((planningModeOnlyOnePlanningModeAllowed) => {\n                alert(planningModeOnlyOnePlanningModeAllowed);\n            });\n\n            return;\n        }*/\n\n        // toggle the planning mode\n        //this.planningMode = !this.planningMode;\n        this.item.planningMode = this.planningMode;\n\n        // also toggle StudentDataService planning mode. This will be used to constrain the entire project when in planning mode.\n        this.StudentDataService.planningMode = this.planningMode;\n\n        // Save planning mode on/off event\n        let componentId = null;\n        let componentType = null;\n        let category = \"Planning\";\n        let eventName = this.planningMode ? \"planningModeOn\" : \"planningModeOff\";\n        let eventData = {\n            nodeId: this.nodeId\n        };\n        let eventNodeId = this.nodeId;\n        this.StudentDataService.saveVLEEvent(eventNodeId, componentId, componentType, category, eventName, eventData);\n\n        // notify the child nodes that the planning mode of this group node has changed\n        this.$rootScope.$broadcast('togglePlanningMode', { nodeId: this.nodeId, planningMode: this.planningMode });\n    }\n\n    /**\n     * The planning node's items array has changed\n     * @param newValue the new value of the planning node's items array\n     * @param oldValue the old value of the planning node's items array\n     */\n    planningNodeItemsChanged(nodeChangedId) {\n        let index = this.item.ids.indexOf(nodeChangedId);\n        let nodeIdAddedAfter = this.item.ids[index-1];\n\n        if (nodeIdAddedAfter) {\n            // the node was moved after another node in the group\n            this.movePlanningNode(nodeChangedId, nodeIdAddedAfter);\n        } else {\n            // the node was moved to the beginning of the group\n            this.movePlanningNode(nodeChangedId, this.nodeId);\n        }\n    };\n}\n\nNavItemController.$inject = [\n    '$filter',\n    '$rootScope',\n    '$scope',\n    '$element',\n    'dragulaService',\n    'NodeService',\n    'PlanningService',\n    'ProjectService',\n    'StudentDataService',\n    '$mdDialog'\n];\n\nexport default NavItemController;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/vle/main.es6 b/src/main/webapp/wise5/vle/main.es6
index 9f75add609..83a0f27cb1 100644
--- a/src/main/webapp/wise5/vle/main.es6
+++ b/src/main/webapp/wise5/vle/main.es6
@@ -23,6 +23,7 @@ import ConceptMapComponentModule from '../components/conceptMap/conceptMapCompon
 import ConfigService from '../services/configService';
 import CRaterService from '../services/cRaterService';
 import Components from '../directives/components';
+import ComponentService from '../components/componentService';
 import DiscussionComponentModule from '../components/discussion/discussionComponentModule';
 import DrawComponentModule from '../components/draw/drawComponentModule';
 import EmbeddedComponentModule from '../components/embedded/embeddedComponentModule';
@@ -42,6 +43,7 @@ import NotebookService from '../services/notebookService';
 import NotificationService from '../services/notificationService';
 import OpenResponseComponentModule from '../components/openResponse/openResponseComponentModule';
 import OutsideURLComponentModule from '../components/outsideURL/outsideURLComponentModule';
+import PlanningService from '../services/planningService';
 import ProjectService from '../services/projectService';
 import SessionService from '../services/sessionService';
 import StudentAsset from './studentAsset/studentAsset';
@@ -93,11 +95,13 @@ let vleModule = angular.module('vle', [
   .service(AchievementService.name, AchievementService)
   .service(AnnotationService.name, AnnotationService)
   .service(ConfigService.name, ConfigService)
+  .service(ComponentService.name, ComponentService)
   .service(CRaterService.name, CRaterService)
   .service(HttpInterceptor.name, HttpInterceptor)
   .service(NodeService.name, NodeService)
   .service(NotebookService.name, NotebookService)
   .service(NotificationService.name, NotificationService)
+  .service(PlanningService.name, PlanningService)
   .service(ProjectService.name, VLEProjectService)
   .service(SessionService.name, SessionService)
   .service(StudentAssetService.name, StudentAssetService)
diff --git a/src/main/webapp/wise5/vle/main.js b/src/main/webapp/wise5/vle/main.js
index 09f254fc58..337c5f861e 100644
--- a/src/main/webapp/wise5/vle/main.js
+++ b/src/main/webapp/wise5/vle/main.js
@@ -96,6 +96,10 @@ var _components = require('../directives/components');
 
 var _components2 = _interopRequireDefault(_components);
 
+var _componentService = require('../components/componentService');
+
+var _componentService2 = _interopRequireDefault(_componentService);
+
 var _discussionComponentModule = require('../components/discussion/discussionComponentModule');
 
 var _discussionComponentModule2 = _interopRequireDefault(_discussionComponentModule);
@@ -172,6 +176,10 @@ var _outsideURLComponentModule = require('../components/outsideURL/outsideURLCom
 
 var _outsideURLComponentModule2 = _interopRequireDefault(_outsideURLComponentModule);
 
+var _planningService = require('../services/planningService');
+
+var _planningService2 = _interopRequireDefault(_planningService);
+
 var _projectService = require('../services/projectService');
 
 var _projectService2 = _interopRequireDefault(_projectService);
@@ -230,7 +238,7 @@ var _angularSummernote2 = _interopRequireDefault(_angularSummernote);
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-var vleModule = _angular2.default.module('vle', [(0, _angularDragula2.default)(_angular2.default), 'angularMoment', 'angular-toArrayFilter', 'animationComponentModule', 'audioOscillatorComponentModule', 'components', 'conceptMapComponentModule', 'discussionComponentModule', 'drawComponentModule', 'embeddedComponentModule', 'filters', 'graphComponentModule', 'highcharts-ng', 'htmlComponentModule', 'labelComponentModule', 'matchComponentModule', 'multipleChoiceComponentModule', 'ngAria', 'ngFileUpload', 'ngMaterial', 'ngOnload', 'ngSanitize', 'ngWebSocket', 'oc.lazyLoad', 'openResponseComponentModule', 'outsideURLComponentModule', 'pascalprecht.translate', 'studentAsset', 'summernote', 'tableComponentModule', 'ui.router', 'ui.scrollpoint']).service(_achievementService2.default.name, _achievementService2.default).service(_annotationService2.default.name, _annotationService2.default).service(_configService2.default.name, _configService2.default).service(_cRaterService2.default.name, _cRaterService2.default).service(_httpInterceptor2.default.name, _httpInterceptor2.default).service(_nodeService2.default.name, _nodeService2.default).service(_notebookService2.default.name, _notebookService2.default).service(_notificationService2.default.name, _notificationService2.default).service(_projectService2.default.name, _vleProjectService2.default).service(_sessionService2.default.name, _sessionService2.default).service(_studentAssetService2.default.name, _studentAssetService2.default).service(_studentDataService2.default.name, _studentDataService2.default).service(_studentStatusService2.default.name, _studentStatusService2.default).service(_studentWebSocketService2.default.name, _studentWebSocketService2.default).service(_utilService2.default.name, _utilService2.default).controller(_navigationController2.default.name, _navigationController2.default).controller(_nodeController2.default.name, _nodeController2.default).controller(_vleController2.default.name, _vleController2.default).filter(_filters2.default.name, _filters2.default).config(['$urlRouterProvider', '$stateProvider', '$translateProvider', '$translatePartialLoaderProvider', '$controllerProvider', '$mdThemingProvider', '$httpProvider', '$provide', function ($urlRouterProvider, $stateProvider, $translateProvider, $translatePartialLoaderProvider, $controllerProvider, $mdThemingProvider, $httpProvider, $provide) {
+var vleModule = _angular2.default.module('vle', [(0, _angularDragula2.default)(_angular2.default), 'angularMoment', 'angular-toArrayFilter', 'animationComponentModule', 'audioOscillatorComponentModule', 'components', 'conceptMapComponentModule', 'discussionComponentModule', 'drawComponentModule', 'embeddedComponentModule', 'filters', 'graphComponentModule', 'highcharts-ng', 'htmlComponentModule', 'labelComponentModule', 'matchComponentModule', 'multipleChoiceComponentModule', 'ngAria', 'ngFileUpload', 'ngMaterial', 'ngOnload', 'ngSanitize', 'ngWebSocket', 'oc.lazyLoad', 'openResponseComponentModule', 'outsideURLComponentModule', 'pascalprecht.translate', 'studentAsset', 'summernote', 'tableComponentModule', 'ui.router', 'ui.scrollpoint']).service(_achievementService2.default.name, _achievementService2.default).service(_annotationService2.default.name, _annotationService2.default).service(_configService2.default.name, _configService2.default).service(_componentService2.default.name, _componentService2.default).service(_cRaterService2.default.name, _cRaterService2.default).service(_httpInterceptor2.default.name, _httpInterceptor2.default).service(_nodeService2.default.name, _nodeService2.default).service(_notebookService2.default.name, _notebookService2.default).service(_notificationService2.default.name, _notificationService2.default).service(_planningService2.default.name, _planningService2.default).service(_projectService2.default.name, _vleProjectService2.default).service(_sessionService2.default.name, _sessionService2.default).service(_studentAssetService2.default.name, _studentAssetService2.default).service(_studentDataService2.default.name, _studentDataService2.default).service(_studentStatusService2.default.name, _studentStatusService2.default).service(_studentWebSocketService2.default.name, _studentWebSocketService2.default).service(_utilService2.default.name, _utilService2.default).controller(_navigationController2.default.name, _navigationController2.default).controller(_nodeController2.default.name, _nodeController2.default).controller(_vleController2.default.name, _vleController2.default).filter(_filters2.default.name, _filters2.default).config(['$urlRouterProvider', '$stateProvider', '$translateProvider', '$translatePartialLoaderProvider', '$controllerProvider', '$mdThemingProvider', '$httpProvider', '$provide', function ($urlRouterProvider, $stateProvider, $translateProvider, $translatePartialLoaderProvider, $controllerProvider, $mdThemingProvider, $httpProvider, $provide) {
   $urlRouterProvider.otherwise('/vle/');
 
   _angular2.default.module('vle').$controllerProvider = $controllerProvider;
diff --git a/src/main/webapp/wise5/vle/main.js.map b/src/main/webapp/wise5/vle/main.js.map
index 61ad9fdc10..b210a707c7 100644
--- a/src/main/webapp/wise5/vle/main.js.map
+++ b/src/main/webapp/wise5/vle/main.js.map
@@ -1 +1 @@
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strict';\n\nimport $ from 'jquery';\nimport AchievementService from '../services/achievementService';\nimport angular from 'angular';\nimport angularDragula from 'angular-dragula';\nimport angularFileUpload from 'ng-file-upload';\nimport angularHighcharts from 'highcharts-ng';\nimport angularMaterial from 'angular-material';\nimport angularMoment from 'angular-moment';\nimport angularOnload from 'ng-onload';\nimport angularSanitize from 'angular-sanitize';\nimport angularToArrayFilter from 'lib/angular-toArrayFilter/toArrayFilter';\nimport angularTranslate from 'angular-translate';\nimport angularTranslateLoaderPartial from 'angular-translate-loader-partial';\nimport angularUIRouter from 'angular-ui-router';\nimport angularUIScrollpoint from 'angular-ui-scrollpoint';\nimport angularWebSocket from 'angular-websocket';\nimport AnimationComponentModule from '../components/animation/animationComponentModule';\nimport AnnotationService from '../services/annotationService';\nimport AudioOscillatorComponentModule from '../components/audioOscillator/audioOscillatorComponentModule';\nimport ConceptMapComponentModule from '../components/conceptMap/conceptMapComponentModule';\nimport ConfigService from '../services/configService';\nimport CRaterService from '../services/cRaterService';\nimport Components from '../directives/components';\nimport DiscussionComponentModule from '../components/discussion/discussionComponentModule';\nimport DrawComponentModule from '../components/draw/drawComponentModule';\nimport EmbeddedComponentModule from '../components/embedded/embeddedComponentModule';\nimport Filters from '../filters/filters';\nimport Highcharts from '../lib/highcharts@4.2.1';\nimport draggablePoints from '../lib/draggable-points/draggable-points';\nimport GraphComponentModule from '../components/graph/graphComponentModule';\nimport HTMLComponentModule from '../components/html/htmlComponentModule';\nimport HttpInterceptor from '../services/httpInterceptor';\nimport LabelComponentModule from '../components/label/labelComponentModule';\nimport MatchComponentModule from '../components/match/matchComponentModule';\nimport MultipleChoiceComponentModule from '../components/multipleChoice/multipleChoiceComponentModule';\nimport NavigationController from './navigation/navigationController';\nimport NodeController from './node/nodeController';\nimport NodeService from '../services/nodeService';\nimport NotebookService from '../services/notebookService';\nimport NotificationService from '../services/notificationService';\nimport OpenResponseComponentModule from '../components/openResponse/openResponseComponentModule';\nimport OutsideURLComponentModule from '../components/outsideURL/outsideURLComponentModule';\nimport ProjectService from '../services/projectService';\nimport SessionService from '../services/sessionService';\nimport StudentAsset from './studentAsset/studentAsset';\nimport StudentAssetService from '../services/studentAssetService';\nimport StudentDataService from '../services/studentDataService';\nimport StudentStatusService from '../services/studentStatusService';\nimport StudentWebSocketService from '../services/studentWebSocketService';\nimport TableComponentModule from '../components/table/tableComponentModule';\nimport UtilService from '../services/utilService';\nimport VLEController from './vleController';\nimport VLEProjectService from './vleProjectService';\nimport ocLazyLoad from 'oclazyload';\nimport moment from 'moment';\nimport angularSummernote from 'lib/angular-summernote/dist/angular-summernote.min';\n\nlet vleModule = angular.module('vle', [\n    angularDragula(angular),\n    'angularMoment',\n    'angular-toArrayFilter',\n    'animationComponentModule',\n    'audioOscillatorComponentModule',\n    'components',\n    'conceptMapComponentModule',\n    'discussionComponentModule',\n    'drawComponentModule',\n    'embeddedComponentModule',\n    'filters',\n    'graphComponentModule',\n    'highcharts-ng',\n    'htmlComponentModule',\n    'labelComponentModule',\n    'matchComponentModule',\n    'multipleChoiceComponentModule',\n    'ngAria',\n    'ngFileUpload',\n    'ngMaterial',\n    'ngOnload',\n    'ngSanitize',\n    'ngWebSocket',\n    'oc.lazyLoad',\n    'openResponseComponentModule',\n    'outsideURLComponentModule',\n    'pascalprecht.translate',\n    'studentAsset',\n    'summernote',\n    'tableComponentModule',\n    'ui.router',\n    'ui.scrollpoint'])\n  .service(AchievementService.name, AchievementService)\n  .service(AnnotationService.name, AnnotationService)\n  .service(ConfigService.name, ConfigService)\n  .service(CRaterService.name, CRaterService)\n  .service(HttpInterceptor.name, HttpInterceptor)\n  .service(NodeService.name, NodeService)\n  .service(NotebookService.name, NotebookService)\n  .service(NotificationService.name, NotificationService)\n  .service(ProjectService.name, VLEProjectService)\n  .service(SessionService.name, SessionService)\n  .service(StudentAssetService.name, StudentAssetService)\n  .service(StudentDataService.name, StudentDataService)\n  .service(StudentStatusService.name, StudentStatusService)\n  .service(StudentWebSocketService.name, StudentWebSocketService)\n  .service(UtilService.name, UtilService)\n  .controller(NavigationController.name, NavigationController)\n  .controller(NodeController.name, NodeController)\n  .controller(VLEController.name, VLEController)\n  .filter(Filters.name, Filters)\n  .config([\n      '$urlRouterProvider',\n      '$stateProvider',\n      '$translateProvider',\n      '$translatePartialLoaderProvider',\n      '$controllerProvider',\n      '$mdThemingProvider',\n      '$httpProvider',\n      '$provide',\n      ($urlRouterProvider,\n      $stateProvider,\n      $translateProvider,\n      $translatePartialLoaderProvider,\n      $controllerProvider,\n      $mdThemingProvider,\n      $httpProvider,\n      $provide) => {\n      $urlRouterProvider.otherwise('/vle/');\n\n      angular.module('vle').$controllerProvider = $controllerProvider;\n\n      $stateProvider\n        .state('root', {\n          url: '',\n          abstract: true,\n          templateProvider: ['$http', 'ProjectService', ($http, ProjectService) => {\n            let themePath = ProjectService.getThemePath();\n            return $http.get(themePath + '/vle.html').then(\n              response => {\n                return response.data;\n              });\n          }],\n          controller: 'VLEController',\n          controllerAs: 'vleController',\n          resolve: {\n            config: (ConfigService) => {\n              let configURL = window.configURL;\n              return ConfigService.retrieveConfig(configURL);\n            },\n            project: (ProjectService, config) => {\n              return ProjectService.retrieveProject();\n            },\n            studentData: (StudentDataService, config, project) => {\n              return StudentDataService.retrieveStudentData();\n            },\n            notebook: (NotebookService, ConfigService, StudentAssetService, studentData, config, project) => {\n              return StudentAssetService.retrieveAssets().then((studentAssets) => {\n                return NotebookService.retrieveNotebookItems(ConfigService.getWorkgroupId()).then((notebook) => {\n                  return notebook;\n                });\n              });\n            },\n            achievements: (AchievementService, studentData, config, project) => {\n              return AchievementService.retrieveAchievements();\n            },\n            notifications: (NotificationService, studentData, config, project) => {\n              return NotificationService.retrieveNotifications();\n            },\n            runStatus: (StudentDataService, config) => {\n              return StudentDataService.retrieveRunStatus();\n            },\n            sessionTimers: (SessionService, config, project, studentData) => {\n              return SessionService.initializeSession();\n            },\n            webSocket: (StudentWebSocketService, config, project) => {\n              return StudentWebSocketService.initialize();\n            },\n            language: ($translate, ConfigService, config) => {\n              let locale = ConfigService.getLocale();  // defaults to \"en\"\n              $translate.use(locale);\n            },\n            theme: (ProjectService, config, project, $ocLazyLoad, $q) => {\n              let theme = ProjectService.getThemePath() + '/theme.js';\n              let def = $q.defer();\n\n              System.import(theme).then(m => {\n                let themeModule = m.default;\n                if (!m.default.name) {\n                  let key = Object.keys(m.default);\n                  themeModule = m.default[key[0]];\n                }\n\n                $ocLazyLoad.load(themeModule).then(() => {\n                  def.resolve();\n                }, err => {\n                  throw err;\n                });\n              });\n\n              return def.promise;\n            }\n          }\n        })\n        .state('root.vle', {\n          url: '/vle/:nodeId',\n          views: {\n            'nodeView': {\n              templateProvider: ['$http', 'ConfigService', ($http, ConfigService) => {\n                let wiseBaseURL = ConfigService.getWISEBaseURL();\n                return $http.get(wiseBaseURL + '/wise5/vle/node/index.html').then(\n                  response => {\n                    return response.data;\n                  }\n                );\n              }],\n              controller: 'NodeController',\n              controllerAs: 'nodeController'\n            }\n          }\n        })\n        .state('root.component', {\n          url: '/vle/:nodeId/:componentId',\n          views: {\n            'nodeView': {\n              templateProvider: ['$http', 'ConfigService', ($http, ConfigService) => {\n                let wiseBaseURL = ConfigService.getWISEBaseURL();\n                return $http.get(wiseBaseURL + '/wise5/vle/node/index.html').then(\n                  response => {\n                    return response.data;\n                  }\n                );\n              }],\n              controller: 'NodeController',\n              controllerAs: 'nodeController'\n            }\n          }\n        });\n\n      $httpProvider.interceptors.push('HttpInterceptor');\n\n      // Set up Translations\n      $translatePartialLoaderProvider.addPart('i18n');\n      $translatePartialLoaderProvider.addPart('vle/i18n');\n      $translateProvider.useLoader('$translatePartialLoader', {\n        urlTemplate: 'wise5/{part}/i18n_{lang}.json'\n      })\n        .fallbackLanguage(['en'])\n        .registerAvailableLanguageKeys(['el','en','es','ja','ko','pt','tr','zh_CN','zh_TW'], {\n          'en_US': 'en',\n          'en_UK': 'en'\n        })\n        .determinePreferredLanguage()\n        .useSanitizeValueStrategy('sanitizeParameters', 'escape');\n\n      // ngMaterial default theme configuration\n      // TODO: make dynamic and support alternate themes; allow projects to specify theme parameters and settings\n      $mdThemingProvider.definePalette('primary', {\n        '50': 'e1f0f4',\n        '100': 'b8dbe4',\n        '200': '8ec6d4',\n        '300': '5faec2',\n        '400': '3d9db5',\n        '500': '1c8ca8',\n        '600': '197f98',\n        '700': '167188',\n        '800': '136377',\n        '900': '0e4957',\n        'A100': 'abf3ff',\n        'A200': '66e2ff',\n        'A400': '17bee5',\n        'A700': '00A1C6',\n        'contrastDefaultColor': 'light',    // whether, by default, text (contrast)\n                                            // on this palette should be dark or light\n        'contrastDarkColors': ['50', '100', //hues which contrast should be 'dark' by default\n          '200', '300', 'A100'],\n        'contrastLightColors': undefined    // could also specify this if default was 'dark'\n      });\n\n      $mdThemingProvider.definePalette('accent', {\n        '50': 'fde9e6',\n        '100': 'fbcbc4',\n        '200': 'f8aca1',\n        '300': 'f4897b',\n        '400': 'f2705f',\n        '500': 'f05843',\n        '600': 'da503c',\n        '700': 'c34736',\n        '800': 'aa3e2f',\n        '900': '7d2e23',\n        'A100': 'ff897d',\n        'A200': 'ff7061',\n        'A400': 'ff3829',\n        'A700': 'cc1705',\n        'contrastDefaultColor': 'light',\n        'contrastDarkColors': ['50', '100',\n          '200', '300', 'A100'],\n        'contrastLightColors': undefined\n      });\n\n      $mdThemingProvider.theme('default')\n        .primaryPalette('primary')\n        .accentPalette('accent',  {\n          'default': '500'\n        })\n        .warnPalette('red', {\n          'default': '800'\n        });\n\n      let lightMap = $mdThemingProvider.extendPalette('grey', {\n        'A100': 'ffffff'\n      });\n      $mdThemingProvider.definePalette('light', lightMap);\n\n      $mdThemingProvider.theme('light')\n        .primaryPalette('light', {\n          'default': 'A100'\n        })\n        .accentPalette('primary');\n\n      $mdThemingProvider.setDefaultTheme('default');\n      $mdThemingProvider.enableBrowserColor();\n\n      // moment.js default overrides\n      // TODO: add i18n support\n      moment.updateLocale('en', {\n        calendar: {\n          lastDay : '[Yesterday at] LT',\n          sameDay : '[Today at] LT',\n          nextDay : '[Tomorrow at] LT',\n          lastWeek : '[last] dddd [at] LT',\n          nextWeek : 'dddd [at] LT',\n          sameElse : 'll'\n        }\n      });\n    }\n  ]);\nexport default vleModule;\n"]}
\ No newline at end of file
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strict';\n\nimport $ from 'jquery';\nimport AchievementService from '../services/achievementService';\nimport angular from 'angular';\nimport angularDragula from 'angular-dragula';\nimport angularFileUpload from 'ng-file-upload';\nimport angularHighcharts from 'highcharts-ng';\nimport angularMaterial from 'angular-material';\nimport angularMoment from 'angular-moment';\nimport angularOnload from 'ng-onload';\nimport angularSanitize from 'angular-sanitize';\nimport angularToArrayFilter from 'lib/angular-toArrayFilter/toArrayFilter';\nimport angularTranslate from 'angular-translate';\nimport angularTranslateLoaderPartial from 'angular-translate-loader-partial';\nimport angularUIRouter from 'angular-ui-router';\nimport angularUIScrollpoint from 'angular-ui-scrollpoint';\nimport angularWebSocket from 'angular-websocket';\nimport AnimationComponentModule from '../components/animation/animationComponentModule';\nimport AnnotationService from '../services/annotationService';\nimport AudioOscillatorComponentModule from '../components/audioOscillator/audioOscillatorComponentModule';\nimport ConceptMapComponentModule from '../components/conceptMap/conceptMapComponentModule';\nimport ConfigService from '../services/configService';\nimport CRaterService from '../services/cRaterService';\nimport Components from '../directives/components';\nimport ComponentService from '../components/componentService';\nimport DiscussionComponentModule from '../components/discussion/discussionComponentModule';\nimport DrawComponentModule from '../components/draw/drawComponentModule';\nimport EmbeddedComponentModule from '../components/embedded/embeddedComponentModule';\nimport Filters from '../filters/filters';\nimport Highcharts from '../lib/highcharts@4.2.1';\nimport draggablePoints from '../lib/draggable-points/draggable-points';\nimport GraphComponentModule from '../components/graph/graphComponentModule';\nimport HTMLComponentModule from '../components/html/htmlComponentModule';\nimport HttpInterceptor from '../services/httpInterceptor';\nimport LabelComponentModule from '../components/label/labelComponentModule';\nimport MatchComponentModule from '../components/match/matchComponentModule';\nimport MultipleChoiceComponentModule from '../components/multipleChoice/multipleChoiceComponentModule';\nimport NavigationController from './navigation/navigationController';\nimport NodeController from './node/nodeController';\nimport NodeService from '../services/nodeService';\nimport NotebookService from '../services/notebookService';\nimport NotificationService from '../services/notificationService';\nimport OpenResponseComponentModule from '../components/openResponse/openResponseComponentModule';\nimport OutsideURLComponentModule from '../components/outsideURL/outsideURLComponentModule';\nimport PlanningService from '../services/planningService';\nimport ProjectService from '../services/projectService';\nimport SessionService from '../services/sessionService';\nimport StudentAsset from './studentAsset/studentAsset';\nimport StudentAssetService from '../services/studentAssetService';\nimport StudentDataService from '../services/studentDataService';\nimport StudentStatusService from '../services/studentStatusService';\nimport StudentWebSocketService from '../services/studentWebSocketService';\nimport TableComponentModule from '../components/table/tableComponentModule';\nimport UtilService from '../services/utilService';\nimport VLEController from './vleController';\nimport VLEProjectService from './vleProjectService';\nimport ocLazyLoad from 'oclazyload';\nimport moment from 'moment';\nimport angularSummernote from 'lib/angular-summernote/dist/angular-summernote.min';\n\nlet vleModule = angular.module('vle', [\n    angularDragula(angular),\n    'angularMoment',\n    'angular-toArrayFilter',\n    'animationComponentModule',\n    'audioOscillatorComponentModule',\n    'components',\n    'conceptMapComponentModule',\n    'discussionComponentModule',\n    'drawComponentModule',\n    'embeddedComponentModule',\n    'filters',\n    'graphComponentModule',\n    'highcharts-ng',\n    'htmlComponentModule',\n    'labelComponentModule',\n    'matchComponentModule',\n    'multipleChoiceComponentModule',\n    'ngAria',\n    'ngFileUpload',\n    'ngMaterial',\n    'ngOnload',\n    'ngSanitize',\n    'ngWebSocket',\n    'oc.lazyLoad',\n    'openResponseComponentModule',\n    'outsideURLComponentModule',\n    'pascalprecht.translate',\n    'studentAsset',\n    'summernote',\n    'tableComponentModule',\n    'ui.router',\n    'ui.scrollpoint'])\n  .service(AchievementService.name, AchievementService)\n  .service(AnnotationService.name, AnnotationService)\n  .service(ConfigService.name, ConfigService)\n  .service(ComponentService.name, ComponentService)\n  .service(CRaterService.name, CRaterService)\n  .service(HttpInterceptor.name, HttpInterceptor)\n  .service(NodeService.name, NodeService)\n  .service(NotebookService.name, NotebookService)\n  .service(NotificationService.name, NotificationService)\n  .service(PlanningService.name, PlanningService)\n  .service(ProjectService.name, VLEProjectService)\n  .service(SessionService.name, SessionService)\n  .service(StudentAssetService.name, StudentAssetService)\n  .service(StudentDataService.name, StudentDataService)\n  .service(StudentStatusService.name, StudentStatusService)\n  .service(StudentWebSocketService.name, StudentWebSocketService)\n  .service(UtilService.name, UtilService)\n  .controller(NavigationController.name, NavigationController)\n  .controller(NodeController.name, NodeController)\n  .controller(VLEController.name, VLEController)\n  .filter(Filters.name, Filters)\n  .config([\n      '$urlRouterProvider',\n      '$stateProvider',\n      '$translateProvider',\n      '$translatePartialLoaderProvider',\n      '$controllerProvider',\n      '$mdThemingProvider',\n      '$httpProvider',\n      '$provide',\n      ($urlRouterProvider,\n      $stateProvider,\n      $translateProvider,\n      $translatePartialLoaderProvider,\n      $controllerProvider,\n      $mdThemingProvider,\n      $httpProvider,\n      $provide) => {\n      $urlRouterProvider.otherwise('/vle/');\n\n      angular.module('vle').$controllerProvider = $controllerProvider;\n\n      $stateProvider\n        .state('root', {\n          url: '',\n          abstract: true,\n          templateProvider: ['$http', 'ProjectService', ($http, ProjectService) => {\n            let themePath = ProjectService.getThemePath();\n            return $http.get(themePath + '/vle.html').then(\n              response => {\n                return response.data;\n              });\n          }],\n          controller: 'VLEController',\n          controllerAs: 'vleController',\n          resolve: {\n            config: (ConfigService) => {\n              let configURL = window.configURL;\n              return ConfigService.retrieveConfig(configURL);\n            },\n            project: (ProjectService, config) => {\n              return ProjectService.retrieveProject();\n            },\n            studentData: (StudentDataService, config, project) => {\n              return StudentDataService.retrieveStudentData();\n            },\n            notebook: (NotebookService, ConfigService, StudentAssetService, studentData, config, project) => {\n              return StudentAssetService.retrieveAssets().then((studentAssets) => {\n                return NotebookService.retrieveNotebookItems(ConfigService.getWorkgroupId()).then((notebook) => {\n                  return notebook;\n                });\n              });\n            },\n            achievements: (AchievementService, studentData, config, project) => {\n              return AchievementService.retrieveAchievements();\n            },\n            notifications: (NotificationService, studentData, config, project) => {\n              return NotificationService.retrieveNotifications();\n            },\n            runStatus: (StudentDataService, config) => {\n              return StudentDataService.retrieveRunStatus();\n            },\n            sessionTimers: (SessionService, config, project, studentData) => {\n              return SessionService.initializeSession();\n            },\n            webSocket: (StudentWebSocketService, config, project) => {\n              return StudentWebSocketService.initialize();\n            },\n            language: ($translate, ConfigService, config) => {\n              let locale = ConfigService.getLocale();  // defaults to \"en\"\n              $translate.use(locale);\n            },\n            theme: (ProjectService, config, project, $ocLazyLoad, $q) => {\n              let theme = ProjectService.getThemePath() + '/theme.js';\n              let def = $q.defer();\n\n              System.import(theme).then(m => {\n                let themeModule = m.default;\n                if (!m.default.name) {\n                  let key = Object.keys(m.default);\n                  themeModule = m.default[key[0]];\n                }\n\n                $ocLazyLoad.load(themeModule).then(() => {\n                  def.resolve();\n                }, err => {\n                  throw err;\n                });\n              });\n\n              return def.promise;\n            }\n          }\n        })\n        .state('root.vle', {\n          url: '/vle/:nodeId',\n          views: {\n            'nodeView': {\n              templateProvider: ['$http', 'ConfigService', ($http, ConfigService) => {\n                let wiseBaseURL = ConfigService.getWISEBaseURL();\n                return $http.get(wiseBaseURL + '/wise5/vle/node/index.html').then(\n                  response => {\n                    return response.data;\n                  }\n                );\n              }],\n              controller: 'NodeController',\n              controllerAs: 'nodeController'\n            }\n          }\n        })\n        .state('root.component', {\n          url: '/vle/:nodeId/:componentId',\n          views: {\n            'nodeView': {\n              templateProvider: ['$http', 'ConfigService', ($http, ConfigService) => {\n                let wiseBaseURL = ConfigService.getWISEBaseURL();\n                return $http.get(wiseBaseURL + '/wise5/vle/node/index.html').then(\n                  response => {\n                    return response.data;\n                  }\n                );\n              }],\n              controller: 'NodeController',\n              controllerAs: 'nodeController'\n            }\n          }\n        });\n\n      $httpProvider.interceptors.push('HttpInterceptor');\n\n      // Set up Translations\n      $translatePartialLoaderProvider.addPart('i18n');\n      $translatePartialLoaderProvider.addPart('vle/i18n');\n      $translateProvider.useLoader('$translatePartialLoader', {\n        urlTemplate: 'wise5/{part}/i18n_{lang}.json'\n      })\n        .fallbackLanguage(['en'])\n        .registerAvailableLanguageKeys(['el','en','es','ja','ko','pt','tr','zh_CN','zh_TW'], {\n          'en_US': 'en',\n          'en_UK': 'en'\n        })\n        .determinePreferredLanguage()\n        .useSanitizeValueStrategy('sanitizeParameters', 'escape');\n\n      // ngMaterial default theme configuration\n      // TODO: make dynamic and support alternate themes; allow projects to specify theme parameters and settings\n      $mdThemingProvider.definePalette('primary', {\n        '50': 'e1f0f4',\n        '100': 'b8dbe4',\n        '200': '8ec6d4',\n        '300': '5faec2',\n        '400': '3d9db5',\n        '500': '1c8ca8',\n        '600': '197f98',\n        '700': '167188',\n        '800': '136377',\n        '900': '0e4957',\n        'A100': 'abf3ff',\n        'A200': '66e2ff',\n        'A400': '17bee5',\n        'A700': '00A1C6',\n        'contrastDefaultColor': 'light',    // whether, by default, text (contrast)\n                                            // on this palette should be dark or light\n        'contrastDarkColors': ['50', '100', //hues which contrast should be 'dark' by default\n          '200', '300', 'A100'],\n        'contrastLightColors': undefined    // could also specify this if default was 'dark'\n      });\n\n      $mdThemingProvider.definePalette('accent', {\n        '50': 'fde9e6',\n        '100': 'fbcbc4',\n        '200': 'f8aca1',\n        '300': 'f4897b',\n        '400': 'f2705f',\n        '500': 'f05843',\n        '600': 'da503c',\n        '700': 'c34736',\n        '800': 'aa3e2f',\n        '900': '7d2e23',\n        'A100': 'ff897d',\n        'A200': 'ff7061',\n        'A400': 'ff3829',\n        'A700': 'cc1705',\n        'contrastDefaultColor': 'light',\n        'contrastDarkColors': ['50', '100',\n          '200', '300', 'A100'],\n        'contrastLightColors': undefined\n      });\n\n      $mdThemingProvider.theme('default')\n        .primaryPalette('primary')\n        .accentPalette('accent',  {\n          'default': '500'\n        })\n        .warnPalette('red', {\n          'default': '800'\n        });\n\n      let lightMap = $mdThemingProvider.extendPalette('grey', {\n        'A100': 'ffffff'\n      });\n      $mdThemingProvider.definePalette('light', lightMap);\n\n      $mdThemingProvider.theme('light')\n        .primaryPalette('light', {\n          'default': 'A100'\n        })\n        .accentPalette('primary');\n\n      $mdThemingProvider.setDefaultTheme('default');\n      $mdThemingProvider.enableBrowserColor();\n\n      // moment.js default overrides\n      // TODO: add i18n support\n      moment.updateLocale('en', {\n        calendar: {\n          lastDay : '[Yesterday at] LT',\n          sameDay : '[Today at] LT',\n          nextDay : '[Tomorrow at] LT',\n          lastWeek : '[last] dddd [at] LT',\n          nextWeek : 'dddd [at] LT',\n          sameElse : 'll'\n        }\n      });\n    }\n  ]);\nexport default vleModule;\n"]}
\ No newline at end of file
diff --git a/src/main/webapp/wise5/vle/vleProjectService.es6 b/src/main/webapp/wise5/vle/vleProjectService.es6
index 5b2f06afe3..82deed43b1 100644
--- a/src/main/webapp/wise5/vle/vleProjectService.es6
+++ b/src/main/webapp/wise5/vle/vleProjectService.es6
@@ -73,27 +73,15 @@ class VLEProjectService extends ProjectService {
   /**
    * Check if we need to display the annotation to the student
    * @param annotation the annotation
-   * @returns whether we need to display the annotation to the student
+   * @returns {boolean} whether we need to display the annotation to the student
    */
   displayAnnotation(annotation) {
-    let result = true;
-    if (annotation != null) {
-      const nodeId = annotation.nodeId;
-      const componentId = annotation.componentId;
-      const component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);
-
-      if (component != null) {
-        const componentType = component.type;
-
-        // get the component service
-        const componentService = this.$injector.get(componentType + 'Service');
-
-        if (componentService != null && componentService.displayAnnotation != null) {
-          result = componentService.displayAnnotation(component, annotation);
-        }
-      }
+    const component = this.getComponentByNodeIdAndComponentId(annotation.nodeId, annotation.componentId);
+    if (component != null) {
+      const componentService = this.$injector.get(component.type + 'Service');
+      return componentService.displayAnnotation(component, annotation);
     }
-    return result;
+    return true;
   }
 
   /**
diff --git a/src/main/webapp/wise5/vle/vleProjectService.js b/src/main/webapp/wise5/vle/vleProjectService.js
index 5564873487..0ff4173b9e 100644
--- a/src/main/webapp/wise5/vle/vleProjectService.js
+++ b/src/main/webapp/wise5/vle/vleProjectService.js
@@ -141,30 +141,18 @@ var VLEProjectService = function (_ProjectService) {
     /**
      * Check if we need to display the annotation to the student
      * @param annotation the annotation
-     * @returns whether we need to display the annotation to the student
+     * @returns {boolean} whether we need to display the annotation to the student
      */
 
   }, {
     key: 'displayAnnotation',
     value: function displayAnnotation(annotation) {
-      var result = true;
-      if (annotation != null) {
-        var nodeId = annotation.nodeId;
-        var componentId = annotation.componentId;
-        var component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);
-
-        if (component != null) {
-          var componentType = component.type;
-
-          // get the component service
-          var componentService = this.$injector.get(componentType + 'Service');
-
-          if (componentService != null && componentService.displayAnnotation != null) {
-            result = componentService.displayAnnotation(component, annotation);
-          }
-        }
+      var component = this.getComponentByNodeIdAndComponentId(annotation.nodeId, annotation.componentId);
+      if (component != null) {
+        var componentService = this.$injector.get(component.type + 'Service');
+        return componentService.displayAnnotation(component, annotation);
       }
-      return result;
+      return true;
     }
 
     /**
diff --git a/src/main/webapp/wise5/vle/vleProjectService.js.map b/src/main/webapp/wise5/vle/vleProjectService.js.map
index b1fa18bbca..23914afd7b 100644
--- a/src/main/webapp/wise5/vle/vleProjectService.js.map
+++ b/src/main/webapp/wise5/vle/vleProjectService.js.map
@@ -1 +1 @@
-{"version":3,"sources":["vleProjectService.es6"],"names":["VLEProjectService","$filter","$http","$injector","$q","$rootScope","ConfigService","UtilService","nodeId","componentId","connectedComponentId","component","getComponentByNodeIdAndComponentId","connectedComponents","connectedComponent","id","componentContent","connectedComponentParams","annotation","result","componentType","type","componentService","get","displayAnnotation","previousScore","currentScore","annotationGroup","globalAnnotationSettings","globalAnnotationGroups","globalAnnotationGroup","enableCriteria","scoreSequence","previousScoreMatch","currentScoreMatch","toString","match","notificationResult","notificationSettings","notifications","notification","scriptFilename","assetDirectoryPath","getProjectAssetsDirectoryPath","scriptPath","then","data","additionalProcessingFunction","key","additionalProcessingFunctionsMap","push","getAdditionalProcessingFunctions","$inject"],"mappings":"AAAA;;;;;;;;AACA;;;;;;;;;;;;IAEMA,iB;;;AACJ,6BAAYC,OAAZ,EAAqBC,KAArB,EAA4BC,SAA5B,EAAuCC,EAAvC,EAA2CC,UAA3C,EAAuDC,aAAvD,EAAsEC,WAAtE,EAAmF;AAAA;;AAAA,iIAC3EN,OAD2E,EAClEC,KADkE,EAC3DC,SAD2D,EAChDC,EADgD,EAC5CC,UAD4C,EAChCC,aADgC,EACjBC,WADiB;AAElF;;AAED;;;;;;;;;;;yCAOqBC,M,EAAQC,W,EAAaC,oB,EAAsB;AAC9D,UAAMC,YAAY,KAAKC,kCAAL,CAAwCJ,MAAxC,EAAgDC,WAAhD,CAAlB;AACA,UAAIE,aAAa,IAAjB,EAAuB;AACrB,YAAME,sBAAsBF,UAAUE,mBAAtC;AACA,YAAIA,uBAAuB,IAA3B,EAAiC;AAAA;AAAA;AAAA;;AAAA;AAC/B,iCAA+BA,mBAA/B,8HAAoD;AAAA,kBAA3CC,kBAA2C;;AAClD,kBAAIA,sBAAsB,IAA1B,EAAgC;AAC9B;;;;;;;;AAQA,oBAAIJ,yBAAyBI,mBAAmBC,EAA5C,IACFL,yBAAyBI,mBAAmBL,WAD9C,EAC2D;AACzD,yBAAO,IAAP;AACD;AACF;AACF;AAhB8B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAiBhC;AACF;AACD,aAAO,KAAP;AACD;;AAED;;;;;;;;gDAK4BO,gB,EAAkBP,W,EAAa;AACzD,UAAIQ,2BAA2B,IAA/B;AACA,UAAID,oBAAoB,IAApB,IAA4BP,eAAe,IAA/C,EAAqD;AACnD,YAAMI,sBAAsBG,iBAAiBH,mBAA7C;AACA,YAAIA,uBAAuB,IAA3B,EAAiC;AAAA;AAAA;AAAA;;AAAA;AAC/B,kCAA+BA,mBAA/B,mIAAoD;AAAA,kBAA3CC,kBAA2C;;AAClD,kBAAIA,sBAAsB,IAA1B,EAAgC;AAC9B;;;;;;;;AAQA,oBAAIL,gBAAgBK,mBAAmBC,EAAnC,IACFN,gBAAgBK,mBAAmBL,WADrC,EACkD;AAChDQ,6CAA2BH,kBAA3B;AACD;AACF;AACF;AAhB8B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAiBhC;AACF;AACD,aAAOG,wBAAP;AACD;;AAED;;;;;;;;sCAKkBC,U,EAAY;AAC5B,UAAIC,SAAS,IAAb;AACA,UAAID,cAAc,IAAlB,EAAwB;AACtB,YAAMV,SAASU,WAAWV,MAA1B;AACA,YAAMC,cAAcS,WAAWT,WAA/B;AACA,YAAME,YAAY,KAAKC,kCAAL,CAAwCJ,MAAxC,EAAgDC,WAAhD,CAAlB;;AAEA,YAAIE,aAAa,IAAjB,EAAuB;AACrB,cAAMS,gBAAgBT,UAAUU,IAAhC;;AAEA;AACA,cAAMC,mBAAmB,KAAKnB,SAAL,CAAeoB,GAAf,CAAmBH,gBAAgB,SAAnC,CAAzB;;AAEA,cAAIE,oBAAoB,IAApB,IAA4BA,iBAAiBE,iBAAjB,IAAsC,IAAtE,EAA4E;AAC1EL,qBAASG,iBAAiBE,iBAAjB,CAAmCb,SAAnC,EAA8CO,UAA9C,CAAT;AACD;AACF;AACF;AACD,aAAOC,MAAP;AACD;;AAED;;;;;;;;;;;oDAQgCR,S,EAAWc,a,EAAeC,Y,EAAc;AACtE,UAAIC,kBAAkB,IAAtB;AACA,UAAIhB,UAAUiB,wBAAV,IAAsC,IAAtC,IACFjB,UAAUiB,wBAAV,CAAmCC,sBAAnC,IAA6D,IAD/D,EACqE;AACnE,YAAIA,yBAAyBlB,UAAUiB,wBAAV,CAAmCC,sBAAhE;AADmE;AAAA;AAAA;;AAAA;AAEnE,gCAAkCA,sBAAlC,mIAA0D;AAAA,gBAAjDC,qBAAiD;;AACxD,gBAAIA,sBAAsBC,cAAtB,IAAwC,IAAxC,IACFD,sBAAsBC,cAAtB,CAAqCC,aAArC,IAAsD,IADxD,EAC8D;AAC5D,kBAAIA,gBAAgBF,sBAAsBC,cAAtB,CAAqCC,aAAzD;AACA,kBAAIA,iBAAiB,IAArB,EAA2B;AACzB;;;;AAIA,oBAAIC,qBAAqBD,cAAc,CAAd,CAAzB;AACA,oBAAIE,oBAAoBF,cAAc,CAAd,CAAxB;;AAEA,oBAAIP,iBAAiB,IAArB,EAA2B;AACzB;AACA,sBAAIQ,sBAAsB,EAAtB,IACFP,aAAaS,QAAb,GAAwBC,KAAxB,CAA8B,MAAMF,iBAAN,GAA0B,GAAxD,CADF,EACgE;AAC9D;AACAP,sCAAkBG,qBAAlB;AACA;AACD;AACF,iBARD,MAQO;AACL,sBAAIL,cAAcU,QAAd,GAAyBC,KAAzB,CAA+B,MAAMH,kBAAN,GAA2B,GAA1D,KACFP,aAAaS,QAAb,GAAwBC,KAAxB,CAA8B,MAAMF,iBAAN,GAA0B,GAAxD,CADF,EACgE;AAC9D;;;;AAIAP,sCAAkBG,qBAAlB;AACA;AACD;AACF;AACF;AACF;AACF;AAnCkE;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAoCpE;AACD,aAAOH,eAAP;AACD;;AAED;;;;;;;;;;;2CAQuBhB,S,EAAWc,a,EAAeC,Y,EAAc;AAC7D,UAAIW,qBAAqB,IAAzB;AACA,UAAI1B,UAAU2B,oBAAV,IAAkC,IAAlC,IACF3B,UAAU2B,oBAAV,CAA+BC,aAA/B,IAAgD,IADlD,EACwD;AACtD,YAAIA,gBAAgB5B,UAAU2B,oBAAV,CAA+BC,aAAnD;AADsD;AAAA;AAAA;;AAAA;AAEtD,gCAAyBA,aAAzB,mIAAwC;AAAA,gBAA/BC,YAA+B;;AACtC,gBAAIA,aAAaT,cAAb,IAA+B,IAA/B,IACFS,aAAaT,cAAb,CAA4BC,aAA5B,IAA6C,IAD/C,EACqD;AACnD,kBAAIA,gBAAgBQ,aAAaT,cAAb,CAA4BC,aAAhD;AACA,kBAAIA,iBAAiB,IAArB,EAA2B;AACzB;;;;AAIA,oBAAIC,qBAAqBD,cAAc,CAAd,CAAzB;AACA,oBAAIE,oBAAoBF,cAAc,CAAd,CAAxB;;AAEA,oBAAIP,iBAAiB,IAArB,EAA2B;AACzB;AACA,sBAAIQ,sBAAsB,EAAtB,IACFP,aAAaS,QAAb,GAAwBC,KAAxB,CAA8B,MAAMF,iBAAN,GAA0B,GAAxD,CADF,EACgE;AAC9DG,yCAAqBG,YAArB;AACA;AACD;AACF,iBAPD,MAOO;AACL,sBAAIf,cAAcU,QAAd,GAAyBC,KAAzB,CAA+B,MAAMH,kBAAN,GAA2B,GAA1D,KACFP,aAAaS,QAAb,GAAwBC,KAAxB,CAA8B,MAAMF,iBAAN,GAA0B,GAAxD,CADF,EACgE;AAC9D;;;;AAIAG,yCAAqBG,YAArB;AACA;AACD;AACF;AACF;AACF;AACF;AAlCqD;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAmCvD;AACD,aAAOH,kBAAP;AACD;;AAED;;;;;;;mCAIeI,c,EAAgB;AAC7B,UAAIC,qBAAqB,KAAKpC,aAAL,CAAmBqC,6BAAnB,EAAzB;AACA,UAAIC,aAAaF,qBAAqB,GAArB,GAA2BD,cAA5C;AACA,aAAO,KAAKvC,KAAL,CAAWqB,GAAX,CAAeqB,UAAf,EAA2BC,IAA3B,CAAgC,UAAC1B,MAAD,EAAY;AACjD,eAAOA,OAAO2B,IAAd;AACD,OAFM,CAAP;AAGD;;;;;AAED;;;;;;o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strict';\nimport ProjectService from '../services/projectService';\n\nclass VLEProjectService extends ProjectService {\n  constructor($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService) {\n    super($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService);\n  }\n\n  /**\n   * Check if a component is a connected component\n   * @param nodeId the node id of the component\n   * @param componentId the component that is listening for connected changes\n   * @param connectedComponentId the component that is broadcasting connected changes\n   * @returns whether the componentId is connected to the connectedComponentId\n   */\n  isConnectedComponent(nodeId, componentId, connectedComponentId) {\n    const component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null) {\n      const connectedComponents = component.connectedComponents;\n      if (connectedComponents != null) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent != null) {\n            /*\n             * check if the connected component id matches the one\n             * we are looking for. connectedComponent.id is the old\n             * field we used to store the component id in so we will\n             * look for that field for the sake of backwards\n             * compatibility. connectedComponent.componentId is the\n             * new field we store the component id in.\n             */\n            if (connectedComponentId === connectedComponent.id ||\n              connectedComponentId === connectedComponent.componentId) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get a connected component params\n   * @param componentId the connected component id\n   * @returns the params for the connected component\n   */\n  getConnectedComponentParams(componentContent, componentId) {\n    let connectedComponentParams = null;\n    if (componentContent != null && componentId != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent != null) {\n            /*\n             * check if the connected component id matches the one\n             * we are looking for. connectedComponent.id is the old\n             * field we used to store the component id in so we will\n             * look for that field for the sake of backwards\n             * compatibility. connectedComponent.componentId is the\n             * new field we store the component id in.\n             */\n            if (componentId === connectedComponent.id ||\n              componentId === connectedComponent.componentId) {\n              connectedComponentParams = connectedComponent;\n            }\n          }\n        }\n      }\n    }\n    return connectedComponentParams;\n  }\n\n  /**\n   * Check if we need to display the annotation to the student\n   * @param annotation the annotation\n   * @returns whether we need to display the annotation to the student\n   */\n  displayAnnotation(annotation) {\n    let result = true;\n    if (annotation != null) {\n      const nodeId = annotation.nodeId;\n      const componentId = annotation.componentId;\n      const component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n\n      if (component != null) {\n        const componentType = component.type;\n\n        // get the component service\n        const componentService = this.$injector.get(componentType + 'Service');\n\n        if (componentService != null && componentService.displayAnnotation != null) {\n          result = componentService.displayAnnotation(component, annotation);\n        }\n      }\n    }\n    return result;\n  }\n\n  /**\n   * Get the global annotation properties for the specified component and score, if exists.\n   * @param component the component content\n   * @param previousScore the previousScore we want the annotation properties for, can be null, which means we just want to look at\n   * the currentScore\n   * @param currentScore the currentScore we want the annotation properties for\n   * @returns the annotation properties for the given score\n   */\n  getGlobalAnnotationGroupByScore(component, previousScore, currentScore) {\n    let annotationGroup = null;\n    if (component.globalAnnotationSettings != null &&\n      component.globalAnnotationSettings.globalAnnotationGroups != null) {\n      let globalAnnotationGroups = component.globalAnnotationSettings.globalAnnotationGroups;\n      for (let globalAnnotationGroup of globalAnnotationGroups) {\n        if (globalAnnotationGroup.enableCriteria != null &&\n          globalAnnotationGroup.enableCriteria.scoreSequence != null) {\n          let scoreSequence = globalAnnotationGroup.enableCriteria.scoreSequence;\n          if (scoreSequence != null) {\n            /*\n             * get the expected previous score and current score\n             * that will satisfy the rule\n             */\n            let previousScoreMatch = scoreSequence[0];\n            let currentScoreMatch = scoreSequence[1];\n\n            if (previousScore == null) {\n              // just matching on the current score\n              if (previousScoreMatch == \"\" &&\n                currentScore.toString().match(\"[\" + currentScoreMatch + \"]\")) {\n                // found a match\n                annotationGroup = globalAnnotationGroup;\n                break;\n              }\n            } else {\n              if (previousScore.toString().match(\"[\" + previousScoreMatch + \"]\") &&\n                currentScore.toString().match(\"[\" + currentScoreMatch + \"]\")) {\n                /*\n                 * the previous score and current score match the\n                 * expected scores so we have found the rule we want\n                 */\n                annotationGroup = globalAnnotationGroup;\n                break;\n              }\n            }\n          }\n        }\n      }\n    }\n    return annotationGroup;\n  }\n\n  /**\n   * Get the notification for the given score, if exists.\n   * @param component the component content\n   * @param previousScore the previousScore we want notification for, can be null, which means we just want to look at\n   * the currentScore\n   * @param currentScore the currentScore we want notification for\n   * @returns the notification for the given score\n   */\n  getNotificationByScore(component, previousScore, currentScore) {\n    let notificationResult = null;\n    if (component.notificationSettings != null &&\n      component.notificationSettings.notifications != null) {\n      let notifications = component.notificationSettings.notifications;\n      for (let notification of notifications) {\n        if (notification.enableCriteria != null &&\n          notification.enableCriteria.scoreSequence != null) {\n          let scoreSequence = notification.enableCriteria.scoreSequence;\n          if (scoreSequence != null) {\n            /*\n             * get the expected previous score and current score\n             * that will satisfy the rule\n             */\n            let previousScoreMatch = scoreSequence[0];\n            let currentScoreMatch = scoreSequence[1];\n\n            if (previousScore == null) {\n              // just matching on the current score\n              if (previousScoreMatch == \"\" &&\n                currentScore.toString().match(\"[\" + currentScoreMatch + \"]\")) {\n                notificationResult = notification;\n                break;\n              }\n            } else {\n              if (previousScore.toString().match(\"[\" + previousScoreMatch + \"]\") &&\n                currentScore.toString().match(\"[\" + currentScoreMatch + \"]\")) {\n                /*\n                 * the previous score and current score match the\n                 * expected scores so we have found the rule we want\n                 */\n                notificationResult = notification;\n                break;\n              }\n            }\n          }\n        }\n      }\n    }\n    return notificationResult;\n  }\n\n  /**\n   * Retrieve the script with the provided script filename\n   * @param scriptFilename\n   */\n  retrieveScript(scriptFilename) {\n    let assetDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n    let scriptPath = assetDirectoryPath + \"/\" + scriptFilename;\n    return this.$http.get(scriptPath).then((result) => {\n      return result.data;\n    });\n  };\n\n  /**\n   * Registers an additionalProcessingFunction for the specified node and component\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param additionalProcessingFunction the function to register for the node and component.\n   */\n  addAdditionalProcessingFunction(nodeId, componentId, additionalProcessingFunction) {\n    let key = nodeId + \"_\" + componentId;\n    if (this.additionalProcessingFunctionsMap[key] == null) {\n      this.additionalProcessingFunctionsMap[key] = [];\n    }\n    this.additionalProcessingFunctionsMap[key].push(additionalProcessingFunction);\n  }\n\n  /**\n   * Returns true iff the specified node and component has any registered additionalProcessingFunctions\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns true/false\n   */\n  hasAdditionalProcessingFunctions(nodeId, componentId) {\n    return this.getAdditionalProcessingFunctions(nodeId, componentId) != null;\n  }\n\n  /**\n   * Returns an array of registered additionalProcessingFunctions for the specified node and component\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns an array of additionalProcessingFunctions\n   */\n  getAdditionalProcessingFunctions(nodeId, componentId) {\n    let key = nodeId + \"_\" + componentId;\n    return this.additionalProcessingFunctionsMap[key];\n  }\n}\n\nVLEProjectService.$inject = [\n  '$filter',\n  '$http',\n  '$injector',\n  '$q',\n  '$rootScope',\n  'ConfigService',\n  'UtilService'\n];\n\nexport default VLEProjectService;\n"]}
\ No newline at end of file
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strict';\nimport ProjectService from '../services/projectService';\n\nclass VLEProjectService extends ProjectService {\n  constructor($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService) {\n    super($filter, $http, $injector, $q, $rootScope, ConfigService, UtilService);\n  }\n\n  /**\n   * Check if a component is a connected component\n   * @param nodeId the node id of the component\n   * @param componentId the component that is listening for connected changes\n   * @param connectedComponentId the component that is broadcasting connected changes\n   * @returns whether the componentId is connected to the connectedComponentId\n   */\n  isConnectedComponent(nodeId, componentId, connectedComponentId) {\n    const component = this.getComponentByNodeIdAndComponentId(nodeId, componentId);\n    if (component != null) {\n      const connectedComponents = component.connectedComponents;\n      if (connectedComponents != null) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent != null) {\n            /*\n             * check if the connected component id matches the one\n             * we are looking for. connectedComponent.id is the old\n             * field we used to store the component id in so we will\n             * look for that field for the sake of backwards\n             * compatibility. connectedComponent.componentId is the\n             * new field we store the component id in.\n             */\n            if (connectedComponentId === connectedComponent.id ||\n              connectedComponentId === connectedComponent.componentId) {\n              return true;\n            }\n          }\n        }\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Get a connected component params\n   * @param componentId the connected component id\n   * @returns the params for the connected component\n   */\n  getConnectedComponentParams(componentContent, componentId) {\n    let connectedComponentParams = null;\n    if (componentContent != null && componentId != null) {\n      const connectedComponents = componentContent.connectedComponents;\n      if (connectedComponents != null) {\n        for (let connectedComponent of connectedComponents) {\n          if (connectedComponent != null) {\n            /*\n             * check if the connected component id matches the one\n             * we are looking for. connectedComponent.id is the old\n             * field we used to store the component id in so we will\n             * look for that field for the sake of backwards\n             * compatibility. connectedComponent.componentId is the\n             * new field we store the component id in.\n             */\n            if (componentId === connectedComponent.id ||\n              componentId === connectedComponent.componentId) {\n              connectedComponentParams = connectedComponent;\n            }\n          }\n        }\n      }\n    }\n    return connectedComponentParams;\n  }\n\n  /**\n   * Check if we need to display the annotation to the student\n   * @param annotation the annotation\n   * @returns {boolean} whether we need to display the annotation to the student\n   */\n  displayAnnotation(annotation) {\n    const component = this.getComponentByNodeIdAndComponentId(annotation.nodeId, annotation.componentId);\n    if (component != null) {\n      const componentService = this.$injector.get(component.type + 'Service');\n      return componentService.displayAnnotation(component, annotation);\n    }\n    return true;\n  }\n\n  /**\n   * Get the global annotation properties for the specified component and score, if exists.\n   * @param component the component content\n   * @param previousScore the previousScore we want the annotation properties for, can be null, which means we just want to look at\n   * the currentScore\n   * @param currentScore the currentScore we want the annotation properties for\n   * @returns the annotation properties for the given score\n   */\n  getGlobalAnnotationGroupByScore(component, previousScore, currentScore) {\n    let annotationGroup = null;\n    if (component.globalAnnotationSettings != null &&\n      component.globalAnnotationSettings.globalAnnotationGroups != null) {\n      let globalAnnotationGroups = component.globalAnnotationSettings.globalAnnotationGroups;\n      for (let globalAnnotationGroup of globalAnnotationGroups) {\n        if (globalAnnotationGroup.enableCriteria != null &&\n          globalAnnotationGroup.enableCriteria.scoreSequence != null) {\n          let scoreSequence = globalAnnotationGroup.enableCriteria.scoreSequence;\n          if (scoreSequence != null) {\n            /*\n             * get the expected previous score and current score\n             * that will satisfy the rule\n             */\n            let previousScoreMatch = scoreSequence[0];\n            let currentScoreMatch = scoreSequence[1];\n\n            if (previousScore == null) {\n              // just matching on the current score\n              if (previousScoreMatch == \"\" &&\n                currentScore.toString().match(\"[\" + currentScoreMatch + \"]\")) {\n                // found a match\n                annotationGroup = globalAnnotationGroup;\n                break;\n              }\n            } else {\n              if (previousScore.toString().match(\"[\" + previousScoreMatch + \"]\") &&\n                currentScore.toString().match(\"[\" + currentScoreMatch + \"]\")) {\n                /*\n                 * the previous score and current score match the\n                 * expected scores so we have found the rule we want\n                 */\n                annotationGroup = globalAnnotationGroup;\n                break;\n              }\n            }\n          }\n        }\n      }\n    }\n    return annotationGroup;\n  }\n\n  /**\n   * Get the notification for the given score, if exists.\n   * @param component the component content\n   * @param previousScore the previousScore we want notification for, can be null, which means we just want to look at\n   * the currentScore\n   * @param currentScore the currentScore we want notification for\n   * @returns the notification for the given score\n   */\n  getNotificationByScore(component, previousScore, currentScore) {\n    let notificationResult = null;\n    if (component.notificationSettings != null &&\n      component.notificationSettings.notifications != null) {\n      let notifications = component.notificationSettings.notifications;\n      for (let notification of notifications) {\n        if (notification.enableCriteria != null &&\n          notification.enableCriteria.scoreSequence != null) {\n          let scoreSequence = notification.enableCriteria.scoreSequence;\n          if (scoreSequence != null) {\n            /*\n             * get the expected previous score and current score\n             * that will satisfy the rule\n             */\n            let previousScoreMatch = scoreSequence[0];\n            let currentScoreMatch = scoreSequence[1];\n\n            if (previousScore == null) {\n              // just matching on the current score\n              if (previousScoreMatch == \"\" &&\n                currentScore.toString().match(\"[\" + currentScoreMatch + \"]\")) {\n                notificationResult = notification;\n                break;\n              }\n            } else {\n              if (previousScore.toString().match(\"[\" + previousScoreMatch + \"]\") &&\n                currentScore.toString().match(\"[\" + currentScoreMatch + \"]\")) {\n                /*\n                 * the previous score and current score match the\n                 * expected scores so we have found the rule we want\n                 */\n                notificationResult = notification;\n                break;\n              }\n            }\n          }\n        }\n      }\n    }\n    return notificationResult;\n  }\n\n  /**\n   * Retrieve the script with the provided script filename\n   * @param scriptFilename\n   */\n  retrieveScript(scriptFilename) {\n    let assetDirectoryPath = this.ConfigService.getProjectAssetsDirectoryPath();\n    let scriptPath = assetDirectoryPath + \"/\" + scriptFilename;\n    return this.$http.get(scriptPath).then((result) => {\n      return result.data;\n    });\n  };\n\n  /**\n   * Registers an additionalProcessingFunction for the specified node and component\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @param additionalProcessingFunction the function to register for the node and component.\n   */\n  addAdditionalProcessingFunction(nodeId, componentId, additionalProcessingFunction) {\n    let key = nodeId + \"_\" + componentId;\n    if (this.additionalProcessingFunctionsMap[key] == null) {\n      this.additionalProcessingFunctionsMap[key] = [];\n    }\n    this.additionalProcessingFunctionsMap[key].push(additionalProcessingFunction);\n  }\n\n  /**\n   * Returns true iff the specified node and component has any registered additionalProcessingFunctions\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns true/false\n   */\n  hasAdditionalProcessingFunctions(nodeId, componentId) {\n    return this.getAdditionalProcessingFunctions(nodeId, componentId) != null;\n  }\n\n  /**\n   * Returns an array of registered additionalProcessingFunctions for the specified node and component\n   * @param nodeId the node id\n   * @param componentId the component id\n   * @returns an array of additionalProcessingFunctions\n   */\n  getAdditionalProcessingFunctions(nodeId, componentId) {\n    let key = nodeId + \"_\" + componentId;\n    return this.additionalProcessingFunctionsMap[key];\n  }\n}\n\nVLEProjectService.$inject = [\n  '$filter',\n  '$http',\n  '$injector',\n  '$q',\n  '$rootScope',\n  'ConfigService',\n  'UtilService'\n];\n\nexport default VLEProjectService;\n"]}
\ No newline at end of file
diff --git a/src/test/java/org/wise/portal/presentation/web/controllers/admin/AllTests.java b/src/test/java/org/wise/portal/presentation/web/controllers/admin/AllTests.java
deleted file mode 100644
index b9315068ed..0000000000
--- a/src/test/java/org/wise/portal/presentation/web/controllers/admin/AllTests.java
+++ /dev/null
@@ -1,41 +0,0 @@
-/**
- * Copyright (c) 2007 Regents of the University of California (Regents). Created
- * by TELS, Graduate School of Education, University of California at Berkeley.
- *
- * This software is distributed under the GNU Lesser General Public License, v2.
- *
- * Permission is hereby granted, without written agreement and without license
- * or royalty fees, to use, copy, modify, and distribute this software and its
- * documentation for any purpose, provided that the above copyright notice and
- * the following two paragraphs appear in all copies of this software.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWAREAND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
- * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
- * REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-package org.wise.portal.presentation.web.controllers.admin;
-
-import org.junit.runner.RunWith;
-import org.junit.runners.Suite;
-
-/**
- * @author patrick lawler
- *
- */
-
-@RunWith(Suite.class)
-@Suite.SuiteClasses( {
-	org.wise.portal.presentation.web.controllers.admin.ViewAllUsersControllerTest.class,
-	org.wise.portal.presentation.web.controllers.admin.FindProjectRunsControllerTest.class,
-	org.wise.portal.presentation.web.controllers.admin.UserInfoControllerTest.class
-})
-public class AllTests {
-
-}
diff --git a/src/test/java/org/wise/portal/presentation/web/controllers/admin/FindProjectRunsControllerTest.java b/src/test/java/org/wise/portal/presentation/web/controllers/admin/FindProjectRunsControllerTest.java
index 4d298bded6..caa7a1f10d 100644
--- a/src/test/java/org/wise/portal/presentation/web/controllers/admin/FindProjectRunsControllerTest.java
+++ b/src/test/java/org/wise/portal/presentation/web/controllers/admin/FindProjectRunsControllerTest.java
@@ -1,108 +1,93 @@
-/**
- * Copyright (c) 2008 Regents of the University of California (Regents). Created
- * by TELS, Graduate School of Education, University of California at Berkeley.
- *
- * This software is distributed under the GNU Lesser General Public License, v2.
- *
- * Permission is hereby granted, without written agreement and without license
- * or royalty fees, to use, copy, modify, and distribute this software and its
- * documentation for any purpose, provided that the above copyright notice and
- * the following two paragraphs appear in all copies of this software.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWAREAND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
- * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
- * REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-package org.wise.portal.presentation.web.controllers.admin;
-
-import static org.easymock.EasyMock.createMock;
-import static org.easymock.EasyMock.expect;
-import static org.easymock.EasyMock.replay;
-
-import java.util.ArrayList;
-
-import org.easymock.EasyMock;
-import org.junit.After;
-import org.junit.Before;
-import org.springframework.context.ApplicationContext;
-import org.springframework.mock.web.MockHttpServletRequest;
-import org.springframework.mock.web.MockHttpServletResponse;
-import org.springframework.test.web.AbstractModelAndViewTests;
-import org.springframework.validation.BindException;
-import org.springframework.web.servlet.ModelAndView;
-import org.wise.portal.domain.project.impl.FindProjectParameters;
-import org.wise.portal.domain.run.Run;
-import org.wise.portal.service.run.RunService;
-
-/**
- * @author patrick lawler
- *
- */
-public class FindProjectRunsControllerTest extends AbstractModelAndViewTests  {
-
-	private final static String VIEW = "admin/manageallprojectruns";
-	
-	private MockHttpServletRequest request;
-
-	private MockHttpServletResponse response;
-	
-	private ApplicationContext mockApplicationContext;
-	
-	private FindProjectRunsController controller;
-	
-	private BindException errors;
-	
-	private RunService runService;
-	
-	private ArrayList<Run> runList;
-	
-	private FindProjectParameters findProjectParameters;
-	
-	@Before
-	public void setUp() {
-		this.request = new MockHttpServletRequest();
-		this.response = new MockHttpServletResponse();
-		this.mockApplicationContext = createMock(ApplicationContext.class);
-		this.runService = createMock(RunService.class);
-		this.controller = new FindProjectRunsController();
-		this.runList = new ArrayList<Run>();
-		this.findProjectParameters = new FindProjectParameters();
-		this.errors = new BindException(findProjectParameters, "");
-	}
-	
-	@After
-	public void tearDown() {
-		this.request = null;
-		this.response = null;
-		this.mockApplicationContext = null;
-		this.runService = null;
-		this.controller = null;
-		this.runList = null;
-		this.errors = null;
-		this.findProjectParameters = null;
-	}
-	
-	public void testOnSubmitNoRuns() {
-		findProjectParameters.setProjectId("1");
-		expect(runService.getAllRunList()).andReturn(runList);
-		replay(runService);
-		ModelAndView modelAndView = null; 
-		try {
-			modelAndView = controller.onSubmit(findProjectParameters, errors);
-		} catch (Exception e) {
-			fail("unexpected exception");
-		}
-		
-		assertModelAttributeValue(modelAndView, "runList", runList);
-		assertEquals(VIEW, modelAndView.getViewName());
-		EasyMock.verify(runService);
-	}
-
-}
+/**
+ * Copyright (c) 2008-2018 Regents of the University of California (Regents). Created
+ * by TELS, Graduate School of Education, University of California at Berkeley.
+ *
+ * This software is distributed under the GNU Lesser General Public License, v2.
+ *
+ * Permission is hereby granted, without written agreement and without license
+ * or royalty fees, to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, provided that the above copyright notice and
+ * the following two paragraphs appear in all copies of this software.
+ *
+ * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE. THE SOFTWAREAND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+ * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
+ * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+ * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+ * REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.wise.portal.presentation.web.controllers.admin;
+
+import static org.easymock.EasyMock.createMock;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import junit.framework.TestCase;
+import org.easymock.EasyMock;
+import org.easymock.EasyMockRunner;
+import org.easymock.Mock;
+import org.easymock.TestSubject;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.ui.ModelMap;
+import org.wise.portal.dao.ObjectNotFoundException;
+import org.wise.portal.domain.project.Project;
+import org.wise.portal.domain.project.impl.ProjectImpl;
+import org.wise.portal.domain.run.Run;
+import org.wise.portal.domain.run.impl.RunImpl;
+import org.wise.portal.service.run.impl.RunServiceImpl;
+
+/**
+ * @author patrick lawler
+ */
+@RunWith(EasyMockRunner.class)
+public class FindProjectRunsControllerTest extends TestCase {
+
+  @TestSubject
+  private FindProjectRunsController controller = new FindProjectRunsController();
+
+  @Mock
+  private RunServiceImpl runService;
+
+  private ModelMap modelMap = new ModelMap();
+
+  Run run1;
+  Long run1Id = 1L;
+  String run1Name = "Run 1";
+
+  @Before
+  public void setUp() {
+    run1 = new RunImpl();
+    run1.setName(run1Name);
+  }
+
+  @After
+  public void tearDown() {
+    run1 = null;
+  }
+
+  @Test
+  public void handleGET_byRunId_OK() throws ObjectNotFoundException {
+    EasyMock.expect(runService.retrieveById(run1Id)).andReturn(run1);
+    EasyMock.replay(runService);
+    String view = controller.findRun("runId", run1Id.toString(), modelMap);
+    assertEquals("admin/run/manageprojectruns", view);
+    List<Run> resultRunList = (List<Run>) modelMap.get("runList");
+    assertEquals(1, resultRunList.size());
+    Run resultFirstRun = resultRunList.get(0);
+    assertEquals(run1Name, resultFirstRun.getName());
+    EasyMock.verify(runService);
+  }
+
+  // TODO: test handleGET_byProjectId_OK
+  // TODO: test handleGET_byTeacherUsername_OK
+  // TODO: test handleGET_byRunTitle_OK
+}
diff --git a/src/test/java/org/wise/portal/presentation/web/controllers/admin/UserInfoControllerTest.java b/src/test/java/org/wise/portal/presentation/web/controllers/admin/UserInfoControllerTest.java
index 8f2e411717..8bf761f94f 100644
--- a/src/test/java/org/wise/portal/presentation/web/controllers/admin/UserInfoControllerTest.java
+++ b/src/test/java/org/wise/portal/presentation/web/controllers/admin/UserInfoControllerTest.java
@@ -1,121 +1,160 @@
-/**
- * Copyright (c) 2007 Regents of the University of California (Regents). Created
- * by TELS, Graduate School of Education, University of California at Berkeley.
- *
- * This software is distributed under the GNU Lesser General Public License, v2.
- *
- * Permission is hereby granted, without written agreement and without license
- * or royalty fees, to use, copy, modify, and distribute this software and its
- * documentation for any purpose, provided that the above copyright notice and
- * the following two paragraphs appear in all copies of this software.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWAREAND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
- * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
- * REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-package org.wise.portal.presentation.web.controllers.admin;
-
-import java.util.Calendar;
-import java.util.HashMap;
-
-import javax.servlet.http.HttpSession;
-
-import org.easymock.EasyMock;
-import org.junit.After;
-import org.junit.Before;
-import org.springframework.mock.web.MockHttpServletRequest;
-import org.springframework.mock.web.MockHttpServletResponse;
-import org.springframework.mock.web.MockHttpSession;
-import org.springframework.test.web.AbstractModelAndViewTests;
-import org.springframework.web.servlet.ModelAndView;
-import org.wise.portal.domain.authentication.Schoollevel;
-import org.wise.portal.domain.authentication.impl.TeacherUserDetails;
-import org.wise.portal.domain.user.User;
-import org.wise.portal.domain.user.impl.UserImpl;
-import org.wise.portal.service.user.UserService;
-
-/**
- * @author patrick lawler
- *
- */
-public class UserInfoControllerTest extends AbstractModelAndViewTests{
-
-	private MockHttpServletRequest request;
-
-	private MockHttpServletResponse response;
-	
-	private UserService mockUserService;
-	
-	private UserInfoController controller;
-	
-	private User user;
-	
-	private TeacherUserDetails userDetails;
-	
-	private HashMap<String, Object> info;
-	
-	/**
-	 * @see junit.framework.TestCase#setUp()
-	 */
-	@Before
-	public void setUp() throws Exception {
-		super.setUp();
-		this.request = new MockHttpServletRequest();
-		this.response = new MockHttpServletResponse();
-		HttpSession mockSession = new MockHttpSession();
-		this.user = new UserImpl();
-		this.userDetails = new TeacherUserDetails();
-		this.userDetails.setCity("Berkeley");
-		this.userDetails.setCountry("USA");
-		String[] subjects = {"physics", "astronomy"};
-		this.userDetails.setCurriculumsubjects(subjects);
-		this.userDetails.setDisplayname("Mr. Mister");
-		this.userDetails.setEmailAddress("mr@here.com");
-		this.userDetails.setFirstname("John");
-		this.userDetails.setLastLoginTime(Calendar.getInstance().getTime());
-		this.userDetails.setLastname("Smith");
-		this.userDetails.setNumberOfLogins(5);
-		this.userDetails.setSchoollevel(Schoollevel.HIGH_SCHOOL);
-		this.userDetails.setSchoolname("Berkeley");
-		this.userDetails.setSignupdate(Calendar.getInstance().getTime());
-		this.userDetails.setState("CA");
-		this.userDetails.setUsername("JohnSmith");
-
-		this.user.setUserDetails(this.userDetails);
-		
-		request.setParameter("userName", "JohnSmith");
-		this.request.setSession(mockSession);
-		this.mockUserService = EasyMock.createMock(UserService.class);
-		
-		this.controller = new UserInfoController();
-		this.controller.setUserService(this.mockUserService);
-		this.info = this.userDetails.getInfo();
-	}
-	
-	@After
-	public void tearDown(){
-		this.info = null;
-		this.mockUserService = null;
-		this.controller = null;
-		this.request = null;
-		this.response = null;
-	}
-	
-	public void testHandleRequestInternal()throws Exception{
-		
-		EasyMock.expect(this.mockUserService.retrieveUserByUsername("JohnSmith")).andReturn(this.user);
-		EasyMock.replay(this.mockUserService);
-		ModelAndView modelAndView = this.controller.handleRequestInternal(request, response);
-		
-		assertModelAttributeValue(modelAndView, this.controller.USER_INFO_MAP, this.info);
-		
-		EasyMock.verify(this.mockUserService);
-	}
-}
+/**
+ * Copyright (c) 2007 Regents of the University of California (Regents). Created
+ * by TELS, Graduate School of Education, University of California at Berkeley.
+ *
+ * This software is distributed under the GNU Lesser General Public License, v2.
+ *
+ * Permission is hereby granted, without written agreement and without license
+ * or royalty fees, to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, provided that the above copyright notice and
+ * the following two paragraphs appear in all copies of this software.
+ *
+ * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE. THE SOFTWAREAND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+ * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
+ * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+ * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+ * REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.wise.portal.presentation.web.controllers.admin;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.HashMap;
+import java.util.List;
+
+import javax.servlet.http.HttpSession;
+
+import junit.framework.TestCase;
+import org.easymock.EasyMock;
+import org.easymock.TestSubject;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.powermock.api.easymock.PowerMock;
+import org.powermock.api.easymock.annotation.Mock;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+import org.springframework.mock.web.MockHttpSession;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.ui.ModelMap;
+import org.springframework.web.servlet.ModelAndView;
+import org.wise.portal.domain.authentication.Schoollevel;
+import org.wise.portal.domain.authentication.impl.PersistentGrantedAuthority;
+import org.wise.portal.domain.authentication.impl.TeacherUserDetails;
+import org.wise.portal.domain.run.Run;
+import org.wise.portal.domain.run.impl.RunImpl;
+import org.wise.portal.domain.user.User;
+import org.wise.portal.domain.user.impl.UserImpl;
+import org.wise.portal.presentation.web.controllers.ControllerUtil;
+import org.wise.portal.service.authentication.UserDetailsService;
+import org.wise.portal.service.run.RunService;
+import org.wise.portal.service.student.StudentService;
+import org.wise.portal.service.user.UserService;
+
+/**
+ * @author patrick lawler
+ */
+@RunWith(PowerMockRunner.class)
+@PrepareForTest(ControllerUtil.class)
+public class UserInfoControllerTest extends TestCase {
+
+  @TestSubject
+  private UserInfoController controller = new UserInfoController();
+
+  @Mock
+  private UserService userService;
+
+  @Mock
+  private StudentService studentService;
+
+  @Mock
+  private RunService runService;
+
+  private User teacherUser;
+
+  private User adminUser;
+
+  private TeacherUserDetails teacherUserDetails;
+
+  private TeacherUserDetails adminUserDetails;
+
+  private ModelMap modelMap = new ModelMap();
+
+  @Before
+  public void setUp() throws Exception {
+    initializeTeacherUser();
+    initializeAdminUser();
+
+    PowerMock.mockStatic(ControllerUtil.class);
+    EasyMock.expect(ControllerUtil.getSignedInUser()).andReturn(adminUser);
+    PowerMock.replay(ControllerUtil.class);
+  }
+
+  protected void initializeAdminUser() {
+    this.adminUser = new UserImpl();
+    this.adminUserDetails = new TeacherUserDetails();
+    PersistentGrantedAuthority adminAuthority = new PersistentGrantedAuthority();
+    adminAuthority.setAuthority(UserDetailsService.ADMIN_ROLE);
+    GrantedAuthority[] adminAuthorities = {adminAuthority};
+    this.adminUserDetails.setAuthorities(adminAuthorities);
+    this.adminUser.setUserDetails(this.adminUserDetails);
+  }
+
+  protected void initializeTeacherUser() {
+    this.teacherUser = new UserImpl();
+    this.teacherUserDetails = new TeacherUserDetails();
+    this.teacherUserDetails.setCity("Berkeley");
+    PersistentGrantedAuthority teacherAuthority = new PersistentGrantedAuthority();
+    teacherAuthority.setAuthority(UserDetailsService.TEACHER_ROLE);
+    GrantedAuthority[] authorities = {teacherAuthority};
+    this.teacherUserDetails.setAuthorities(authorities);
+    this.teacherUserDetails.setCountry("USA");
+    String[] subjects = {"physics", "astronomy"};
+    this.teacherUserDetails.setCurriculumsubjects(subjects);
+    this.teacherUserDetails.setDisplayname("Mr. Mister");
+    this.teacherUserDetails.setEmailAddress("mr@here.com");
+    this.teacherUserDetails.setFirstname("John");
+    this.teacherUserDetails.setLastLoginTime(Calendar.getInstance().getTime());
+    this.teacherUserDetails.setLastname("Smith");
+    this.teacherUserDetails.setNumberOfLogins(5);
+    this.teacherUserDetails.setSchoollevel(Schoollevel.HIGH_SCHOOL);
+    this.teacherUserDetails.setSchoolname("Berkeley");
+    this.teacherUserDetails.setSignupdate(Calendar.getInstance().getTime());
+    this.teacherUserDetails.setState("CA");
+    this.teacherUserDetails.setUsername("JohnSmith");
+    this.teacherUser.setUserDetails(this.teacherUserDetails);
+  }
+
+  @After
+  public void tearDown(){
+    this.userService = null;
+    this.controller = null;
+    PowerMock.verify(ControllerUtil.class);
+  }
+
+  @Test
+  public void getUserAccountInfo_teacher_OK() throws Exception {
+    EasyMock.expect(this.userService.retrieveUserByUsername("JohnSmith")).andReturn(this.teacherUser);
+    PowerMock.replay(this.userService);
+    List<Run> teacherRuns = new ArrayList<>();
+    teacherRuns.add(new RunImpl());
+    EasyMock.expect(this.runService.getRunListByOwner(this.teacherUser)).andReturn(teacherRuns);
+    PowerMock.replay(this.runService);
+    String view = this.controller.getUserAccountInfo("JohnSmith", modelMap);
+    assertEquals("teacher/account/info", view);
+    assertEquals(false, modelMap.get("isStudent"));
+    List<Run> resultRunList = (List<Run>) modelMap.get("runList");
+    assertEquals(1, resultRunList.size());
+    EasyMock.verify(this.userService);
+    EasyMock.verify(this.runService);
+  }
+
+  // TODO: test getUserAccountInfo_student_OK
+  // TODO: test getUserAccountInfo_user_accessDenied
+}
diff --git a/src/test/java/org/wise/portal/presentation/web/controllers/admin/ViewAllUsersControllerTest.java b/src/test/java/org/wise/portal/presentation/web/controllers/admin/ViewAllUsersControllerTest.java
index 0ca6052a8f..1a6f38dbf6 100644
--- a/src/test/java/org/wise/portal/presentation/web/controllers/admin/ViewAllUsersControllerTest.java
+++ b/src/test/java/org/wise/portal/presentation/web/controllers/admin/ViewAllUsersControllerTest.java
@@ -27,94 +27,125 @@
 
 import javax.servlet.http.HttpSession;
 
+import junit.framework.TestCase;
 import org.easymock.EasyMock;
+import org.easymock.EasyMockRunner;
+import org.easymock.Mock;
+import org.easymock.TestSubject;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
 import org.springframework.mock.web.MockHttpServletRequest;
-import org.springframework.mock.web.MockHttpServletResponse;
 import org.springframework.mock.web.MockHttpSession;
-import org.springframework.test.web.AbstractModelAndViewTests;
 import org.springframework.ui.ModelMap;
-import org.springframework.web.servlet.ModelAndView;
+import org.wise.portal.domain.authentication.impl.StudentUserDetails;
+import org.wise.portal.domain.authentication.impl.TeacherUserDetails;
 import org.wise.portal.domain.user.User;
 import org.wise.portal.domain.user.impl.UserImpl;
-import org.wise.portal.presentation.web.controllers.ControllerUtil;
+import org.wise.portal.service.authentication.impl.UserDetailsServiceImpl;
 import org.wise.portal.service.user.UserService;
 
-
 /**
  * @author Sally Ahn
- * @version $Id: $
  */
-public class ViewAllUsersControllerTest extends AbstractModelAndViewTests{
-	
-	private ViewAllUsersController viewAllUsersController;
-
-	private MockHttpServletRequest request;
-
-	private MockHttpServletResponse response;
-	
-	private ModelMap modelMap;
-	
-	private UserService mockUserService;
-	
-	private List<User> allUsers;
-	
-	private List<User> teachers;
-	
-	private List<User> students;
-	
-	private List<User> admins;
-	
-	private List<User> other;
-	
-	private User user;
-
-	/**
-	 * @see junit.framework.TestCase#setUp()
-	 */
-	@Before
-	public void setUp() throws Exception {
-		super.setUp();
-		this.request = new MockHttpServletRequest();
-		this.response = new MockHttpServletResponse();
-		HttpSession mockSession = new MockHttpSession();
-		this.user = new UserImpl();
-		
-		mockSession.setAttribute(User.CURRENT_USER_SESSION_KEY, this.user);
-		this.request.setSession(mockSession);
-
-		this.mockUserService = EasyMock.createMock(UserService.class);
-		
-		this.viewAllUsersController = new ViewAllUsersController();
-		this.allUsers = new ArrayList<User>();
-		this.teachers = new ArrayList<User>();
-		this.students = new ArrayList<User>();
-		this.admins = new ArrayList<User>();
-		this.other = new ArrayList<User>();
-	}
-
-	
-	public void testHandleRequestInternal() throws Exception{
-		
-		EasyMock.expect(mockUserService.retrieveAllUsers()).andReturn(allUsers);
-    	EasyMock.replay(mockUserService);
-    	
-    	String view = 
-    		viewAllUsersController.handleRequestInternal(request, response, modelMap);
-
-    	assertEquals(view, "admin/manageusers");
-    	EasyMock.verify(mockUserService);
-	}
-	
-	/**
-	 * @see junit.framework.TestCase#tearDown()
-	 */
-	@After
-	public void tearDown() throws Exception {
-		super.tearDown();
-		this.request = null;
-		this.response = null;
-		this.mockUserService = null;
-	}
+@RunWith(EasyMockRunner.class)
+public class ViewAllUsersControllerTest extends TestCase {
+
+  @TestSubject
+  private ViewAllUsersController controller = new ViewAllUsersController();
+
+  private MockHttpServletRequest request;
+
+  private ModelMap modelMap = new ModelMap();
+
+  @Mock
+  private UserService userService;
+
+  @Mock
+  private UserDetailsServiceImpl userDetailsService;
+
+  private List<User> allUsers;
+
+  private List<User> teachers;
+
+  private List<User> students;
+
+  private List<User> admins;
+
+  private List<User> other;
+
+  private User user;
+
+  @Before
+  public void setUp() throws Exception {
+    super.setUp();
+    this.request = new MockHttpServletRequest();
+    HttpSession mockSession = new MockHttpSession();
+    this.user = new UserImpl();
+    mockSession.setAttribute(User.CURRENT_USER_SESSION_KEY, this.user);
+    this.request.setSession(mockSession);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    super.tearDown();
+    this.request = null;
+    this.userService = null;
+  }
+
+  @Test
+  public void showUsers_onlyTeachers_OK() throws Exception {
+    List<String> allTeacherUsernames = new ArrayList<>();
+    allTeacherUsernames.add("hirokiterashima");
+    allTeacherUsernames.add("geoffreykwan");
+    allTeacherUsernames.add("jonathanlimbreitbart");
+    EasyMock.expect(userDetailsService.retrieveAllUsernames(TeacherUserDetails.class.getName()))
+        .andReturn(allTeacherUsernames);
+    EasyMock.replay(userDetailsService);
+    this.request.setParameter("userType", "teacher");
+    String view = controller.showUsers(request, modelMap);
+    assertEquals(view, "admin/account/manageusers");
+    List<String>  teacherUsernamesResult = (List<String>) modelMap.get("teachers");
+    assertEquals(3, teacherUsernamesResult.size());
+    EasyMock.verify(userDetailsService);
+  }
+
+  @Test
+  public void showUsers_onlyStudents_OK() throws Exception {
+    List<String> allStudentUsernames = new ArrayList<>();
+    allStudentUsernames.add("hirokit0101");
+    allStudentUsernames.add("geoffreyk0102");
+    allStudentUsernames.add("jonathanb0103");
+    EasyMock.expect(userDetailsService.retrieveAllUsernames(StudentUserDetails.class.getName()))
+      .andReturn(allStudentUsernames);
+    EasyMock.replay(userDetailsService);
+    this.request.setParameter("userType", "student");
+    String view = controller.showUsers(request, modelMap);
+    assertEquals(view, "admin/account/manageusers");
+    List<String>  studentUsernamesResult = (List<String>) modelMap.get("students");
+    assertEquals(3, studentUsernamesResult.size());
+    EasyMock.verify(userDetailsService);
+  }
+
+  @Test
+  public void showUsers_allUsers_OK() throws Exception {
+    List<String> allUserUsernames = new ArrayList<>();
+    allUserUsernames.add("hirokiterashima");
+    allUserUsernames.add("geoffreykwan");
+    allUserUsernames.add("jonathanlimbreitbart");
+    allUserUsernames.add("hirokit0101");
+    allUserUsernames.add("geoffreyk0102");
+    allUserUsernames.add("jonathanb0103");
+    EasyMock.expect(userService.retrieveAllUsernames()).andReturn(allUserUsernames);
+    EasyMock.replay(userService);
+    String view = controller.showUsers(request, modelMap);
+    assertEquals(view, "admin/account/manageusers");
+    List<String>  allUserUsernamesResult = (List<String>) modelMap.get("usernames");
+    assertEquals(6, allUserUsernamesResult.size());
+    EasyMock.verify(userService);
+  }
+
+  // TODO: test showUsers_onlyShowUsersWhoLoggedIn_OK
+  // TODO: test showUsers_onlyShowLoggedInUser_OK
 }
diff --git a/versionBump.sh b/versionBump.sh
index abcbb6f820..98f9aee62f 100755
--- a/versionBump.sh
+++ b/versionBump.sh
@@ -25,4 +25,16 @@ sed -i.bak "1,/\"version\": \".*\"/{s/\"version\": \".*\"/\"version\": \"${NEW_V
 # Note: this assumes that WISE version is the first <version>...</version> tag in pom.xml
 sed -i.bak "1,/<version>.*<\/version>/{s/<version>.*<\/version>/<version>${NEW_VERSION_NUMBER}<\/version>/;}" pom.xml && rm pom.xml.bak
 
+# Note: this assumes that WISE version is in the ?v=versionNumber in jsp
+sed -i.bak "1,/config\.js\?v\=.*\""/{s/config\.js\?v\=.*\"/config\.js\?v\=${NEW_VERSION_NUMBER}\""/;}" src/main/webapp/portal/author.jsp
+
+# Note: this assumes that WISE version is in the ?v=versionNumber in jsp
+sed -i.bak "1,/config\.js\?v\=.*\""/{s/config\.js\?v\=.*\"/config\.js\?v\=${NEW_VERSION_NUMBER}\""/;}" src/main/webapp/portal/classroomMonitor.jsp
+
+# Note: this assumes that WISE version is in the ?v=versionNumber in jsp
+sed -i.bak "1,/config\.js\?v\=.*\""/{s/config\.js\?v\=.*\"/config\.js\?v\=${NEW_VERSION_NUMBER}\""/;}" src/main/webapp/portal/student.jsp
+
+# Note: this assumes that WISE version is in the ?v=versionNumber in config.js
+sed -i.bak "1,/\'\?v\=.*\'"/{s/\'\?v\=.*\'/\'\?v\=${NEW_VERSION_NUMBER}\'"/;}" src/main/webapp/wise5/config.js
+
 echo "Bumped version number to ${NEW_VERSION_NUMBER}.\nYou might want to commit changes now:\ngit commit -a -m \"Bumped version number to ${NEW_VERSION_NUMBER}\""