Initial commit

TBE/Eclipse/eclipse/plugins/org.eclipse.help.webapp_3.0.1/advanced/highlight.js

@@ -0,0 +1,95 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+
+var isSafari = navigator.userAgent.indexOf('Safari/') != -1;
+var highlighted=false;
+var startTime;
+var MAX_DURATION=3000;
+onload=highlight;
+document.onreadystatechange=highlight;
+function highlight(){
+	if(highlighted){
+		return;
+	}
+	highlighted=true;
+	if (!document.body) return;
+	if(document.body.innerHTML.length < 50000){
+		for(i=0; i<keywords.length; i++){
+			word=keywords[i].toLowerCase();
+			highlightWordInNode(word, document.body);
+		}
+	}else{
+		startTime=new Date().getTime();
+		for(i=0; i<keywords.length; i++){
+			word=keywords[i].toLowerCase();
+			highlightWordInNodeTimed(word, document.body);
+			if(new Date().getTime()>startTime+MAX_DURATION) return;
+		}
+	}
+}
+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(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");
+			if(isSafari){
+				spanNode.style.color="#000000";
+				spanNode.style.background="#B5D5FF";
+			}else{
+				spanNode.style.background="Highlight";
+				spanNode.style.color="HighlightText";
+			}
+			replacementNode.appendChild(spanNode);
+			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);
+	}
+}