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(function(){
var objOverlay = document.createElement("div");
var objinnerDiv = document.createElement("div");
var debugControls = document.createElement("div");
var mainDiv;
objOverlay.id = "readOverlay";
objinnerDiv.id = "readInner";
// Apply user-selected styling:
document.body.className = style;
objOverlay.className = style;
objinnerDiv.className = margin + " " + size;
debugControls.className = "debug-controls";
debugControls.innerHTML = "<input type='button' onclick='grabArticle();' value='Seek Prose' style='font-size: 16px; margin: 10px;'/> <input style='font-size: 16px; margin: 10px;' type='button' onclick='killDivs(mainDiv);' value='Remove Junk' />";
document.body.insertBefore(debugControls, document.body.firstChild);
// objinnerDiv.appendChild(grabArticle()); // Get the article and place it inside the inner Div
// objOverlay.appendChild(objinnerDiv); // Insert the inner div into the overlay
// This removes everything else on the page. Requires a page refresh to undo it.
// I tried the damn overlay on top - but had rendering issues:
// document.body.innerHTML = "";
// Inserts the new content :
// document.body.insertBefore(objOverlay, document.body.firstChild);
})()
function grabArticle() {
var allParagraphs = document.getElementsByTagName("p");
var topDivCount = 0;
var topDiv;
var topDivParas;
var articleContent = document.createElement("DIV");
var articleTitle = document.createElement("H1");
var articleFooter = document.createElement("DIV");
// Replace all doubled-up <BR> tags with <P> tags :
var pattern = new RegExp ("<br/?>[ \r\n\s]*<br/?>", "g");
document.body.innerHTML = document.body.innerHTML.replace(pattern, "</p><p>");
// Grab the title from the <title> tag and inject it as the title.
articleTitle.textContent = document.title;
articleContent.appendChild(articleTitle);
// Study all the paragraphs and find the chunk that has the most <p>'s and keep it:
for (var j=0; j < allParagraphs.length; j++) {
var tempParas = allParagraphs[j].parentNode.getElementsByTagName("p");
if ( tempParas.length > topDivCount && allParagraphs[j].parentNode.textContent.split(',').length >= tempParas.length ) {
topDivCount = tempParas.length;
topDiv = allParagraphs[j].parentNode;
topDiv.className = "bug-yellow";
}
}
topDiv.className = "bug-green";
/*
// REMOVES ALL STYLESHEETS ...
for (var k=0;k < document.styleSheets.length; k++) {
if (document.styleSheets[k].href != null && document.styleSheets[k].href.lastIndexOf("arc90.com") == -1) {
document.styleSheets[k].disabled = true;
}
}
*/
// cleanStyles(topDiv); // Removes all style attributes
// topDiv = killDivs(topDiv); // Goes in and removes DIV's that have more non <p> stuff than <p> stuff
// Cleans out junk from the topDiv just in case:
/*
topDiv = clean(topDiv, "form");
topDiv = clean(topDiv, "object");
topDiv = clean(topDiv, "table");
topDiv = clean(topDiv, "h1");
topDiv = clean(topDiv, "h2");
topDiv = clean(topDiv, "iframe");
*/
// Add the footer and contents:
/*
articleFooter.id = "readFooter";
articleFooter.innerHTML = "<a href='http://www.arc90.com'><img src='http://lab.arc90.com/experiments/readability/images/footer.png'></a>";
articleContent.appendChild(topDiv);
articleContent.appendChild(articleFooter);
return topDiv;
*/
mainDiv = topDiv;
}
function cleanAll() {
mainDiv = clean(mainDiv, "form");
mainDiv = clean(mainDiv, "object");
mainDiv = clean(mainDiv, "table");
mainDiv = clean(mainDiv, "h1");
mainDiv = clean(mainDiv, "h2");
mainDiv = clean(mainDiv, "iframe");
}
function cleanStyles( e ) {
e = e || document;
var cur = e.firstChild;
// Go until there are no more child nodes
while ( cur != null ) {
if ( cur.nodeType == 1 ) {
// Remove style attribute(s) :
cur.removeAttribute("style");
cleanStyles( cur );
}
cur = cur.nextSibling;
}
}
function killDivs ( e ) {
var divsList = e.getElementsByTagName( "div" );
var curDivLength = divsList.length;
// Gather counts for other typical elements embedded within :
for (var i=0; i < curDivLength; i ++) {
var p = divsList[i].getElementsByTagName("p").length;
var img = divsList[i].getElementsByTagName("img").length;
var li = divsList[i].getElementsByTagName("li").length;
var a = divsList[i].getElementsByTagName("a").length;
var embed = divsList[i].getElementsByTagName("embed").length;
// If the number of commas is less than 10 (bad sign) ...
if (divsList[i].textContent.split(',').length < 10) {
// And the number of non-paragraph elements is more than paragraphs
// or other ominous signs :
if ( img > p || li > p || a > p || p == 0 || embed > 0) {
divsList[i].className = "bug-red";
divsList[i].color = "red";
// divsList[i].style.display = "none";
}
}
}
return e;
}
function clean(e, tags, minWords) {
var targetList = e.getElementsByTagName( tags );
minWords = minWords || 1000000;
for (var y=0; y < targetList.length; y++) {
// If the text content isn't laden with words, remove the child:
if (targetList[y].textContent.split(' ').length < minWords) {
targetList[y].className = "bug-red";
// targetList[y].parentNode.removeChild(targetList[y]);
}
}
return e;
}
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