| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| var isMozilla = navigator.userAgent.indexOf('Mozilla') != -1 && parseInt(navigator.appVersion.substring(0,1)) >= 5; |
| var isIE = navigator.userAgent.indexOf('MSIE') != -1; |
| var firstNodeHighlighted=false; |
| var firstNodeToBeHighlighted; |
| var topmostScroll; |
| var isSafari = (navigator.userAgent.indexOf('Safari/') != -1) |
| || (navigator.userAgent.indexOf('AppleWebKit/') != -1); |
| var highlighted=false; |
| var defaultHighlight; |
| var currentHighlight; |
| var startTime; |
| var MAX_DURATION=3000; |
| // w3c standard |
| if (window.addEventListener) { |
| window.addEventListener("load", highlight, false); |
| } |
| // IE |
| else { |
| window.attachEvent("onload", highlight); |
| } |
| |
| var visited = 0; |
| |
| function highlight(){ |
| if(highlighted){ |
| return; |
| } |
| highlighted=true; |
| if (!document.body) return; |
| if (parent.ContentToolbarFrame) { |
| loadCookie(); |
| parent.ContentToolbarFrame.setButtonState("toggle_highlight",defaultHighlight); |
| } else { |
| defaultHighlight=pluginDefault; |
| } |
| if ((defaultHighlight == false) && document.styleSheets) { |
| setRule(".resultofText",""); |
| } |
| currentHighlight = defaultHighlight; |
| |
| if(document.body.innerHTML.length < 50000 && !isIE){ |
| for(i=0; i<keywords.length; i++){ |
| firstNodeHighlighted=false; |
| word=keywords[i].toLowerCase(); |
| highlightWordInNode(word, document.body); |
| if(firstNodeHighlighted){ |
| var scroll=getVerticalScroll(firstNodeToBeHighlighted); |
| } |
| if (topmostScroll==null||topmostScroll>scroll){ |
| topmostScroll=scroll; |
| } |
| } |
| } else { |
| visited = 0; |
| startTime=new Date().getTime(); |
| for(i=0; i<keywords.length && new Date().getTime() < startTime+MAX_DURATION; i++){ |
| word=keywords[i].toLowerCase(); |
| highlightWordInNodeTimed(word, document.body); |
| if(firstNodeHighlighted){ |
| var scroll=getVerticalScroll(firstNodeToBeHighlighted); |
| } |
| if (topmostScroll==null||topmostScroll>scroll){ |
| topmostScroll=scroll; |
| } |
| } |
| } |
| scrollIntoView(topmostScroll); |
| } |
| |
| function setRule(selector, css) { |
| var theRules = new Array(); |
| for (var i = 0; i< document.styleSheets.length; i++) { |
| if (document.styleSheets[i].cssRules) |
| theRules = document.styleSheets[i].cssRules; |
| else if (document.styleSheets[i].rules) |
| theRules = document.styleSheets[i].rules; |
| for (var j = theRules.length-1; j>=0; j--) { |
| if (theRules[j].selectorText==selector) { |
| theRules[j].style.cssText=css; |
| } |
| } |
| } |
| } |
| |
| function highlightWordInNode(aWord, aNode){ |
| if (aNode.nodeType == 1){ |
| var children = aNode.childNodes; |
| for(var i=0; i < children.length; i++) { |
| highlightWordInNode(aWord, children[i]); |
| } |
| } |
| else if(aNode.nodeType==3){ |
| highlightWordInText(aWord, aNode); |
| } |
| |
| } |
| |
| function highlightWordInNodeTimed(aWord, aNode){ |
| if (aNode.nodeType == 1){ |
| var children = aNode.childNodes; |
| for(var i=0; i < children.length; i++) { |
| highlightWordInNodeTimed(aWord, children[i]); |
| if (visited % 128 == 0) { |
| // Getting the time is slow only check periodically |
| if(new Date().getTime()>startTime+MAX_DURATION) { |
| return; |
| } |
| } |
| } |
| } |
| else if(aNode.nodeType==3){ |
| highlightWordInText(aWord, aNode); |
| } |
| |
| } |
| |
| function highlightWordInText(aWord, textNode){ |
| allText=new String(textNode.data); |
| allTextLowerCase=allText.toLowerCase(); |
| index=allTextLowerCase.indexOf(aWord); |
| if(index>=0){ |
| // create a node to replace the textNode so we end up |
| // not changing number of children of textNode.parent |
| replacementNode=document.createElement("span"); |
| textNode.parentNode.insertBefore(replacementNode, textNode); |
| while(index>=0){ |
| before=allText.substring(0,index); |
| newBefore=document.createTextNode(before); |
| replacementNode.appendChild(newBefore); |
| spanNode=document.createElement("span"); |
| spanNode.setAttribute("name","resultofMatch"); |
| if(isSafari){ |
| if (defaultHighlight == true) { |
| spanNode.style.color="#000000"; |
| spanNode.style.background="#FFFF66"; |
| } else { |
| spanNode.style.color=null; |
| spanNode.style.background=null; |
| } |
| }else{ |
| if ((defaultHighlight == false) && !document.styleSheets) { |
| if (isIE) spanNode.setAttribute("className",null); |
| else spanNode.setAttribute("class",null); |
| } else { |
| if (isIE) { |
| spanNode.className ="resultofText"; |
| } else { |
| spanNode.setAttribute("class","resultofText"); |
| } |
| } |
| } |
| |
| replacementNode.appendChild(spanNode); |
| if(!firstNodeHighlighted){ |
| firstNodeToBeHighlighted=spanNode; |
| firstNodeHighlighted=true; |
| } |
| boldText=document.createTextNode(allText.substring(index,index+aWord.length)); |
| spanNode.appendChild(boldText); |
| allText=allText.substring(index+aWord.length); |
| allTextLowerCase=allText.toLowerCase(); |
| index=allTextLowerCase.indexOf(aWord); |
| } |
| newAfter=document.createTextNode(allText); |
| replacementNode.appendChild(newAfter); |
| textNode.parentNode.removeChild(textNode); |
| } |
| } |
| |
| /** |
| * Scrolls the page to show the specified element |
| */ |
| function scrollIntoView(scroll) |
| { |
| if (scroll != 0) |
| window.scrollBy(0, scroll); |
| } |
| |
| /** |
| * Get the position of the specified element |
| */ |
| function getVerticalScroll(node) |
| { |
| if(node==null) |
| { |
| return 0; |
| } |
| |
| var nodeTop =0; |
| var nodeBottom=0; |
| var pageBottom = 0; |
| var nodeOffsetHeight=node.offsetHeight; |
| |
| try{ |
| |
| if(node.offsetParent) |
| { |
| for( ; node.offsetParent; node = node.offsetParent ) |
| { |
| nodeTop += node.offsetTop; |
| |
| } |
| |
| }else{ |
| nodeTop = node.offsetTop; |
| } |
| |
| } catch (e){} |
| |
| |
| nodeBottom = nodeTop + nodeOffsetHeight; |
| |
| if (isIE) |
| { |
| |
| |
| pageBottom = window.document.documentElement.clientHeight; |
| |
| if(pageBottom==0){ |
| |
| pageBottom = window.document.body.clientHeight; |
| |
| } |
| |
| } else if (isMozilla) |
| { |
| |
| pageBottom = window.innerHeight ; |
| |
| } |
| |
| var scroll = 0; |
| |
| if (nodeTop >= 0 ) |
| { |
| if (nodeBottom <= pageBottom) |
| { |
| scroll = 0; // already in view |
| } else { |
| scroll = nodeTop; |
| } |
| } else { |
| scroll = nodeTop; |
| } |
| |
| return scroll; |
| |
| } |
| |
| function toggleHighlight() { |
| setHighlight(currentHighlight == false); |
| } |
| |
| function setHighlight(current) { |
| currentHighlight = (current==true); |
| if (isSafari) { |
| var color; |
| var backgnd; |
| if (currentHighlight) { |
| color = "#000000"; |
| backgnd = "#FFFF66"; |
| } |
| else { |
| color = null; |
| backgnd = null; |
| } |
| var elements = document.getElementsByName("resultofMatch"); |
| for (var i = 0; i<elements.length; i++){ |
| elements[i].style.color=color; |
| elements[i].style.backgroundColor= backgnd; |
| } |
| } |
| else if (document.styleSheets){ |
| var text; |
| if (currentHighlight) { |
| text = "COLOR: #000000; BACKGROUND-COLOR: #FFFF66;"; |
| } else { |
| text = ""; |
| } |
| setRule(".resultofText",text); |
| } |
| } |
| |
| function loadCookie() { |
| var i = document.cookie.indexOf("highlight"); |
| if (i != -1) { |
| var result = document.cookie.substring(i+10); |
| i = result.indexOf(";"); |
| if (i != -1) { |
| result = result.substring(0,i); |
| } |
| defaultHighlight = new Boolean(result == "true"); |
| } else { |
| defaultHighlight = new Boolean(true); |
| } |
| } |