From 9c35f9abb78e922c867eb3d1607ee7e4084f211c Mon Sep 17 00:00:00 2001
From: Maximilian Stoiber <contact@mxstbr.com>
Date: Fri, 29 Sep 2017 19:36:58 +0200
Subject: [PATCH] Proof of concept side toolbar

---
 src/components/draftjs-editor/SideToolbar.js | 74 ++++++++++++++++++++
 src/components/draftjs-editor/index.js       | 37 ++++++----
 src/components/draftjs-editor/style.js       |  5 ++
 3 files changed, 101 insertions(+), 15 deletions(-)
 create mode 100644 src/components/draftjs-editor/SideToolbar.js

diff --git a/src/components/draftjs-editor/SideToolbar.js b/src/components/draftjs-editor/SideToolbar.js
new file mode 100644
index 0000000000..c41cfb10a6
--- /dev/null
+++ b/src/components/draftjs-editor/SideToolbar.js
@@ -0,0 +1,74 @@
+// @flow
+// This file was copy-and-pasted from the draft-js-side-toolbar-plugin and adapted
+// for our codebase.
+import React from 'react';
+import { findDOMNode } from 'react-dom';
+// $FlowIssue
+import DraftOffsetKey from 'draft-js/lib/DraftOffsetKey';
+
+type EditorState = Object; // Draft.js editor state
+type EditorRef = any; // A reference to the editor DOM node
+
+type Props = {
+  editorState: EditorState,
+  children: Function,
+  editorRef: EditorRef,
+};
+
+type ToolbarPosition = {
+  top?: number,
+  left?: number,
+};
+
+type State = {
+  position: ?ToolbarPosition,
+};
+
+export default class Toolbar extends React.Component<Props, State> {
+  state = {
+    position: {},
+  };
+
+  componentDidMount() {
+    this.setPosition(this.props.editorState, this.props.editorRef);
+  }
+
+  componentDidUpdate() {
+    this.setPosition(this.props.editorState, this.props.editorRef);
+  }
+
+  setPosition = (editorState: EditorState, editorRef: EditorRef) => {
+    if (!editorRef) return;
+    const selection = editorState.getSelection();
+    if (!selection.getHasFocus()) return;
+
+    const currentContent = editorState.getCurrentContent();
+    const currentBlock = currentContent.getBlockForKey(selection.getStartKey());
+    if (!currentBlock) return;
+    const offsetKey = DraftOffsetKey.encode(currentBlock.getKey(), 0, 0);
+    if (!offsetKey) return;
+    // NOTE(@juliankrispel): Need to wait on tick to make sure the DOM node has been create by Draft.js
+    setTimeout(() => {
+      const node = document.querySelectorAll(
+        `[data-offset-key="${offsetKey}"]`
+      )[0];
+      if (!node) return;
+      const top = node.getBoundingClientRect().top;
+      const scrollY =
+        window.scrollY == null ? window.pageYOffset : window.scrollY;
+      const editor = findDOMNode(editorRef);
+      if (!editor) return;
+      this.setState({
+        position: {
+          top: top + scrollY,
+          left: editor.getBoundingClientRect().left - 80,
+        },
+      });
+    }, 0);
+  };
+
+  render() {
+    const { position } = this.state;
+    return this.props.children({ style: position });
+  }
+}
diff --git a/src/components/draftjs-editor/index.js b/src/components/draftjs-editor/index.js
index 177ffbd59f..8bf88908f9 100644
--- a/src/components/draftjs-editor/index.js
+++ b/src/components/draftjs-editor/index.js
@@ -31,7 +31,8 @@ import prismGlobalCSS from '!!raw-loader!./prism-theme.css';
 injectGlobal`${prismGlobalCSS}`;
 
 import Image from './Image';
-import { Wrapper, MediaRow, ComposerBase } from './style';
+import { Wrapper, MediaRow, ComposerBase, SideToolbarWrapper } from './style';
+import SideToolbar from './SideToolbar';
 import MediaInput from '../mediaInput';
 import { LinkPreview, LinkPreviewLoading } from '../linkPreview';
 
@@ -156,6 +157,16 @@ class Editor extends React.Component {
             }}
             {...rest}
           />
+          {images !== false &&
+            !rest.readOnly && (
+              <SideToolbar editorState={state} editorRef={this.editor}>
+                {({ style }) => (
+                  <SideToolbarWrapper style={style}>
+                    <MediaInput onChange={this.addImage} multiple />
+                  </SideToolbarWrapper>
+                )}
+              </SideToolbar>
+            )}
           {showLinkPreview && linkPreview && linkPreview.loading ? (
             <LinkPreviewLoading margin={'16px 0 24px 0'} />
           ) : showLinkPreview && linkPreview && linkPreview.data ? (
@@ -168,12 +179,6 @@ class Editor extends React.Component {
               margin={'16px 0 24px 0'}
             />
           ) : null}
-          {images !== false &&
-            !this.props.readOnly && (
-              <MediaInput onChange={this.addImage} multiple>
-                Add
-              </MediaInput>
-            )}
         </ComposerBase>
       );
     } else {
@@ -201,6 +206,16 @@ class Editor extends React.Component {
               }}
               {...rest}
             />
+            {images !== false &&
+              !rest.readOnly && (
+                <SideToolbar editorState={state} editorRef={this.editor}>
+                  {({ style }) => (
+                    <SideToolbarWrapper style={style}>
+                      <MediaInput onChange={this.addImage} multiple />
+                    </SideToolbarWrapper>
+                  )}
+                </SideToolbar>
+              )}
           </Wrapper>
           {showLinkPreview && linkPreview && linkPreview.loading ? (
             <LinkPreviewLoading margin={'16px 0 24px 0'} />
@@ -214,14 +229,6 @@ class Editor extends React.Component {
               margin={'16px 0 24px 0'}
             />
           ) : null}
-          {images !== false &&
-            !this.props.readOnly && (
-              <MediaRow>
-                <MediaInput onChange={this.addImage} multiple>
-                  Add
-                </MediaInput>
-              </MediaRow>
-            )}
         </div>
       );
     }
diff --git a/src/components/draftjs-editor/style.js b/src/components/draftjs-editor/style.js
index 64fa8ee6fc..4bbf6498ce 100644
--- a/src/components/draftjs-editor/style.js
+++ b/src/components/draftjs-editor/style.js
@@ -43,3 +43,8 @@ export const ComposerBase = styled.div`
     color: ${props => props.theme.text.placeholder};
   }
 `;
+
+export const SideToolbarWrapper = styled.div`
+  position: fixed;
+  margin-top: -0.5em;
+`;