diff --git a/js/readability.js b/js/readability.js index d0fd4f7..48f7ab8 100755 --- a/js/readability.js +++ b/js/readability.js @@ -6,11 +6,11 @@ var dbg = (typeof console !== 'undefined') ? function(s) { } : function() {}; /* - * Readability. An Arc90 Lab Experiment. + * Readability. An Arc90 Lab Experiment. * Website: http://lab.arc90.com/experiments/readability * Source: http://code.google.com/p/arc90labs-readability * - * "Readability" is a trademark of Arc90 Inc and may not be used without explicit permission. + * "Readability" is a trademark of Arc90 Inc and may not be used without explicit permission. * * Copyright (c) 2010 Arc90 Inc * Readability is licensed under the Apache License, Version 2.0. @@ -38,7 +38,7 @@ var readability = { maxPages: 30, /* The maximum number of pages to loop through before we call it quits and just show a link. */ parsedPages: {}, /* The list of pages we've parsed in this call of readability, for autopaging. As a key store for easier searching. */ pageETags: {}, /* A list of the ETag headers of pages we've parsed, in case they happen to match, we'll know it's a duplicate. */ - + /** * All of the regular expressions in use within readability. * Defined up here so we don't instantiate them repeatedly in loops. @@ -63,7 +63,7 @@ var readability = { /** * Runs readability. - * + * * Workflow: * 1. Prep the document by removing script tags, css, etc. * 2. Build readability's DOM tree. @@ -88,7 +88,7 @@ var readability = { /* Pull out any possible next page link first */ var nextPageLink = readability.findNextPageLink(document.body); - + readability.prepDocument(); /* Build readability's DOM tree */ @@ -173,7 +173,7 @@ var readability = { } if (nextPageLink) { - /** + /** * Append any additional pages after a small timeout so that people * can start reading without having to wait for this to finish processing. **/ @@ -195,16 +195,16 @@ var readability = { var windowHeight = window.innerHeight ? window.innerHeight : (document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight); if(readability.reversePageScroll) { - readability.scrollTo(readability.scrollTop(), readability.scrollTop() - (windowHeight - 50), 20, 10); + readability.scrollTo(readability.scrollTop(), readability.scrollTop() - (windowHeight - 50), 20, 10); } else { - readability.scrollTo(readability.scrollTop(), readability.scrollTop() + (windowHeight - 50), 20, 10); + readability.scrollTo(readability.scrollTop(), readability.scrollTop() + (windowHeight - 50), 20, 10); } - + return false; } }; - + document.onkeyup = function(e) { var code = (window.event) ? event.keyCode : e.keyCode; if (code === 16) { @@ -216,7 +216,7 @@ var readability = { /** * Run any post-process modifications to article content as necessary. - * + * * @param Element * @return void **/ @@ -242,7 +242,7 @@ var readability = { for(var i=0, il = images.length; i < il; i+=1) { var image = images[i]; - + if(image.offsetWidth > imageWidthThreshold) { image.className += " blockImage"; } @@ -258,11 +258,9 @@ var readability = { var articleTools = document.createElement("DIV"); articleTools.id = "readTools"; - articleTools.innerHTML = + articleTools.innerHTML = "Reload Original Page" + - "Print Page" + - "Email Page"; - + "Print Page"; return articleTools; }, @@ -275,13 +273,13 @@ var readability = { function sanitizeText() { return text.replace(/@\w+/, ""); } - + function countMatches(match) { var matches = text.match(new RegExp(match, "g")); - return matches !== null ? matches.length : 0; + return matches !== null ? matches.length : 0; } - - function isRTL() { + + function isRTL() { var count_heb = countMatches("[\\u05B0-\\u05F4\\uFB1D-\\uFBF4]"); var count_arb = countMatches("[\\u060C-\\u06FE\\uFB50-\\uFEFC]"); @@ -293,7 +291,7 @@ var readability = { return isRTL() ? "rtl" : "ltr"; }, - + /** * Get the article title as an H1. * @@ -305,17 +303,17 @@ var readability = { try { curTitle = origTitle = document.title; - + if(typeof curTitle !== "string") { /* If they had an element with id "title" in their HTML */ - curTitle = origTitle = readability.getInnerText(document.getElementsByTagName('title')[0]); + curTitle = origTitle = readability.getInnerText(document.getElementsByTagName('title')[0]); } } catch(e) {} - + if(curTitle.match(/ [\|\-] /)) { curTitle = origTitle.replace(/(.*)[\|\-] .*/gi,'$1'); - + if(curTitle.split(' ').length < 3) { curTitle = origTitle.replace(/[^\|\-]*[\|\-](.*)/gi,'$1'); } @@ -342,10 +340,10 @@ var readability = { if(curTitle.split(' ').length <= 4) { curTitle = origTitle; } - + var articleTitle = document.createElement("H1"); articleTitle.innerHTML = curTitle; - + return articleTitle; }, @@ -378,14 +376,14 @@ var readability = { "Readability version " + readability.version + "", "", ""].join(''); - + return articleFooter; }, - + /** * Prepare the HTML document for readability to scrape it. * This includes things like stripping javascript, CSS, and handling terrible markup. - * + * * @return void **/ prepDocument: function () { @@ -397,7 +395,7 @@ var readability = { { var body = document.createElement("body"); try { - document.body = body; + document.body = body; } catch(e) { document.documentElement.appendChild(body); @@ -429,11 +427,11 @@ var readability = { biggestFrameSize = frameSize; readability.biggestFrame = frames[frameIndex]; } - + if(canAccessFrame && frameSize > bestFrameSize) { readability.frameHack = true; - + bestFrame = frames[frameIndex]; bestFrameSize = frameSize; } @@ -445,7 +443,7 @@ var readability = { newBody.innerHTML = bestFrame.contentWindow.document.body.innerHTML; newBody.style.overflow = 'scroll'; document.body = newBody; - + var frameset = document.getElementsByTagName('frameset')[0]; if(frameset) { frameset.parentNode.removeChild(frameset); } @@ -479,20 +477,20 @@ var readability = { addFootnotes: function(articleContent) { var footnotesWrapper = document.getElementById('readability-footnotes'), articleFootnotes = document.getElementById('readability-footnotes-list'); - + if(!footnotesWrapper) { footnotesWrapper = document.createElement("DIV"); footnotesWrapper.id = 'readability-footnotes'; footnotesWrapper.innerHTML = '
]*>\s*
80 && linkDensity < 0.25)
{
append = true;
@@ -929,7 +927,7 @@ var readability = {
var nodeToAppend = null;
if(siblingNode.nodeName !== "DIV" && siblingNode.nodeName !== "P") {
/* We have a node that isn't a common block level element, like a form or td tag. Turn it into a div so it doesn't get filtered out later by accident. */
-
+
dbg("Altering siblingNode of " + siblingNode.nodeName + ' to div.');
nodeToAppend = document.createElement("DIV");
try {
@@ -947,7 +945,7 @@ var readability = {
s-=1;
sl-=1;
}
-
+
/* To ensure a node does not interfere with readability styles, remove its classnames */
nodeToAppend.className = "";
@@ -989,10 +987,10 @@ var readability = {
return null;
}
}
-
+
return articleContent;
},
-
+
/**
* Removes script tags from the document.
*
@@ -1007,12 +1005,12 @@ var readability = {
scripts[i].nodeValue="";
scripts[i].removeAttribute('src');
if (scripts[i].parentNode) {
- scripts[i].parentNode.removeChild(scripts[i]);
+ scripts[i].parentNode.removeChild(scripts[i]);
}
}
}
},
-
+
/**
* Get the inner text of a node - cross browser compatibly.
* This also strips out any excess whitespace to be found.
@@ -1075,18 +1073,18 @@ var readability = {
if ( cur.nodeType === 1 ) {
// Remove style attribute(s) :
if(cur.className !== "readability-styled") {
- cur.removeAttribute("style");
+ cur.removeAttribute("style");
}
readability.cleanStyles( cur );
}
cur = cur.nextSibling;
- }
+ }
},
-
+
/**
* Get the density of links as a percentage of the content
* This is the amount of text that is inside a link divided by the total text in the node.
- *
+ *
* @param Element
* @return number (float)
**/
@@ -1097,11 +1095,11 @@ var readability = {
for(var i=0, il=links.length; i
');
responseHtml = responseHtml.replace(readability.regexps.replaceFonts, '<$1span>');
-
+
page.innerHTML = responseHtml;
/**
@@ -1480,7 +1478,7 @@ var readability = {
}
}
}
-
+
readability.removeScripts(content);
thisPage.innerHTML = thisPage.innerHTML + content.innerHTML;
@@ -1502,9 +1500,9 @@ var readability = {
});
}(nextPageLink, articlePage));
},
-
+
/**
- * Get an elements class/id weight. Uses regular expressions to tell if this
+ * Get an elements class/id weight. Uses regular expressions to tell if this
* element looks good or bad.
*
* @param Element
@@ -1552,7 +1550,7 @@ var readability = {
**/
killBreaks: function (e) {
try {
- e.innerHTML = e.innerHTML.replace(readability.regexps.killBreaks,'
');
+ e.innerHTML = e.innerHTML.replace(readability.regexps.killBreaks,'
');
}
catch (eBreaks) {
dbg("KillBreaks failed - this is an IE bug. Ignoring.: " + eBreaks);
@@ -1570,7 +1568,7 @@ var readability = {
clean: function (e, tag) {
var targetList = e.getElementsByTagName( tag );
var isEmbed = (tag === 'object' || tag === 'embed');
-
+
for (var y=targetList.length-1; y >= 0; y-=1) {
/* Allow youtube and vimeo videos through as people usually want to see those. */
if(isEmbed) {
@@ -1578,7 +1576,7 @@ var readability = {
for (var i=0, il=targetList[y].attributes.length; i < il; i+=1) {
attributeValues += targetList[y].attributes[i].value + '|';
}
-
+
/* First, check the elements attributes to see if any of them contain youtube or vimeo */
if (attributeValues.search(readability.regexps.videos) !== -1) {
continue;
@@ -1588,13 +1586,13 @@ var readability = {
if (targetList[y].innerHTML.search(readability.regexps.videos) !== -1) {
continue;
}
-
+
}
targetList[y].parentNode.removeChild(targetList[y]);
}
},
-
+
/**
* Clean an element of all tags of type "tag" if they look fishy.
* "Fishy" is an algorithm based on content length, classnames, link density, number of images & embeds, etc.
@@ -1619,7 +1617,7 @@ var readability = {
for (var i=curTagsLength-1; i >= 0; i-=1) {
var weight = readability.getClassWeight(tagsList[i]);
var contentScore = (typeof tagsList[i].readability !== 'undefined') ? tagsList[i].readability.contentScore : 0;
-
+
dbg("Cleaning Conditionally " + tagsList[i] + " (" + tagsList[i].className + ":" + tagsList[i].id + ")" + ((typeof tagsList[i].readability !== 'undefined') ? (" with score " + tagsList[i].readability.contentScore) : ''));
if(weight+contentScore < 0)
@@ -1640,7 +1638,7 @@ var readability = {
var embeds = tagsList[i].getElementsByTagName("embed");
for(var ei=0,il=embeds.length; ei < il; ei+=1) {
if (embeds[ei].src.search(readability.regexps.videos) === -1) {
- embedCount+=1;
+ embedCount+=1;
}
}
@@ -1653,7 +1651,7 @@ var readability = {
} else if(li > p && tag !== "ul" && tag !== "ol") {
toRemove = true;
} else if( input > Math.floor(p/3) ) {
- toRemove = true;
+ toRemove = true;
} else if(contentLength < 25 && (img === 0 || img > 2) ) {
toRemove = true;
} else if(weight < 25 && linkDensity > 0.2) {
@@ -1689,22 +1687,22 @@ var readability = {
},
/*** Smooth scrolling logic ***/
-
+
/**
* easeInOut animation algorithm - returns an integer that says how far to move at this point in the animation.
* Borrowed from jQuery's easing library.
* @return integer
**/
- easeInOut: function(start,end,totalSteps,actualStep) {
- var delta = end - start;
+ easeInOut: function(start,end,totalSteps,actualStep) {
+ var delta = end - start;
- if ((actualStep/=totalSteps/2) < 1) {
+ if ((actualStep/=totalSteps/2) < 1) {
return delta/2*actualStep*actualStep + start;
}
actualStep -=1;
return -delta/2 * ((actualStep)*(actualStep-2) - 1) + start;
},
-
+
/**
* Helper function to, in a cross compatible way, get or set the current scroll offset of the document.
* @return mixed integer on get, the result of window.scrollTo on set
@@ -1725,7 +1723,7 @@ var readability = {
return document.body.scrollTop;
}
},
-
+
/**
* scrollTo - Smooth scroll to the point of scrollEnd in the document.
* @return void
@@ -1742,7 +1740,7 @@ var readability = {
}
var oldScrollTop = readability.scrollTop();
-
+
readability.scrollTop(readability.easeInOut(scrollStart, scrollEnd, steps, readability.curScrollStep));
// We're at the end of the window.
@@ -1756,7 +1754,7 @@ var readability = {
}
},
-
+
/**
* Show the email popup.
*
@@ -1773,9 +1771,9 @@ var readability = {
emailContainer.setAttribute('id', 'email-container');
emailContainer.innerHTML = '';
- document.body.appendChild(emailContainer);
+ document.body.appendChild(emailContainer);
},
-
+
/**
* Close the email popup. This is a hacktackular way to check if we're in a "close loop".
* Since we don't have crossdomain access to the frame, we can only know when it has
@@ -1793,9 +1791,9 @@ var readability = {
}
readability.iframeLoads = 0;
- }
+ }
},
-
+
htmlspecialchars: function (s) {
if (typeof(s) === "string") {
s = s.replace(/&/g, "&");
@@ -1804,22 +1802,22 @@ var readability = {
s = s.replace(//g, ">");
}
-
+
return s;
},
flagIsActive: function(flag) {
return (readability.flags & flag) > 0;
},
-
+
addFlag: function(flag) {
readability.flags = readability.flags | flag;
},
-
+
removeFlag: function(flag) {
readability.flags = readability.flags & ~flag;
}
-
+
};
readability.init();