/******************************************************************************* * 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 Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html *  * Contributors: *     IBM Corporation - initial API and implementation *******************************************************************************/ // Common scripts for IE and Mozilla.var isMozilla = navigator.userAgent.indexOf('Mozilla') != -1 && parseInt(navigator.appVersion.substring(0,1)) >= 5;var isIE = navigator.userAgent.indexOf('MSIE') != -1;var oldActive;var oldActiveClass = "";// Preload images// **********************************************************// Note: code moved into the jsp, for dynamic image preferences/** * Returns the target node of an event */function getTarget(e) {	var target;  	if (isMozilla)  		target = e.target;  	else if (isIE)   		target = window.event.srcElement;	return target;}/** * Returns the next tree node "down" from current one */function getNextDown(node){	var a = getAnchorNode(node);	if (!a) return null;			// Try visible child first	var li = a.parentNode;	var ul = getChildNode(li, "UL");	if (ul && ul.className == "expanded")		return getDescendantNode(ul, "A");		// Try next sibling	var li_sib = getNextSibling(li);	if (li_sib != null)		return getDescendantNode(li_sib, "A");			// Try looking to parent's sibling	while(li_sib == null) {		var ul = li.parentNode;		li = ul.parentNode;		if (li.tagName != "LI") // reached the top, nothing else to do			return null;					li_sib = getNextSibling(li);			}			// found the next down sibling	return getDescendantNode(li_sib, "A");		}/** * Returns the next tree node "down" from current one */function getNextUp(node){	var a = getAnchorNode(node);	if (!a) return null;			// Get previous sibling first	var li = a.parentNode;	var li_sib = getPrevSibling(li);	if (li_sib != null) {		// try to get the deepest node that preceeds this current node		var candidate = getDescendantNode(li_sib, "A");		var nextDown = getNextDown(candidate);		while(nextDown != null && nextDown != node){			candidate = nextDown;			nextDown = getNextDown(nextDown);		}		return getDescendantNode(candidate, "A");	;	} else {		// get the parent		var li = li.parentNode.parentNode;		if (li && li.tagName == "LI")			return getDescendantNode(li, "A");		else			return null;	}}/** * Returns the next sibling element */function getNextSibling(node) {	var sib = node.nextSibling;	while (sib && (sib.nodeType == 3 || sib.tagName=="SCRIPT")) // text or script node		sib = sib.nextSibling;	return sib;}/** * Returns the next sibling element */function getPrevSibling(node) {	var sib = node.previousSibling;	while (sib && (sib.nodeType == 3 || sib.tagName=="SCRIPT")) // text or script node		sib = sib.previousSibling;	return sib;}/** * Returns the child node with specified tag */function getChildNode(parent, childTag){	var list = parent.childNodes;	if (list == null) return null;	for (var i=0; i<list.length; i++)		if (list.item(i).tagName == childTag)			return list.item(i);	return null;}/** * Returns the descendat node with specified tag (depth-first searches) */function getDescendantNode(parent, childTag){		if (parent == null) return null;		if (parent.tagName == childTag)		return parent;			var list = parent.childNodes;	if (list == null) return null;	for (var i=0; i<list.length; i++) {		var child = list.item(i);		if(child.tagName == childTag)			return child;				child = getDescendantNode(child, childTag);		if (child != null)			return child;	}	return null;}/** * Returns the anchor of this click * NOTE: MOZILLA BUG WITH A:focus and A:active styles */function getAnchorNode(node) {  if (node == null) return null;     if (node.nodeType == 3)  //"Node.TEXT_NODE") 	return node.parentNode;  else if (node.tagName == "A")     return node;  else if (node.tagName == "IMG")  	return getChildNode(node.parentNode, "A");  return null;}/** * Returns the plus/minus icon for this tree node */function getPlusMinus(node){	if (isPlusMinus(node))		return node;  	else if (node.nodeType == 3)  //"Node.TEXT_NODE") 		return getChildNode(node.parentNode.parentNode, "IMG");	else if (node.tagName == "IMG")    	return getChildNode(node.parentNode.parentNode, "IMG");  	else if (node.tagName == "A")     	return getChildNode(node.parentNode, "IMG"); 	return null;}/** * Returns true when the node is the plus or minus icon */function isPlusMinus(node){	return (node.nodeType != 3 && node.tagName == "IMG" && (node.className == "expanded" || node.className == "collapsed"));}/** * Collapses a tree rooted at the specified element */function collapse(node) {  node.className = "collapsed";  node.src = plus.src;  node.alt = altTopicClosed;  // set the UL as well  var ul = getChildNode(node.parentNode, "UL");  if (ul != null) ul.className = "collapsed";}/** * Expands a tree rooted at the specified element */function expand(node) {  	node.className = "expanded";  	node.src = minus.src;    node.alt = altTopicOpen;  	// set the UL as well  	var ul = getChildNode(node.parentNode, "UL");  	if (ul != null){  		ul.className = "expanded";  		if (ul.id.length > 0){  			if (!frames.dynLoadFrame) {  				return;  			}  			var ix = window.location.href.indexOf('?');  			if (ix < 0) {  				return;  			}  			var query = window.location.href.substr(ix);  			frames.dynLoadFrame.location = "tocFragment.jsp" + query + "&path=" + ul.id;  		}  	}}/** * Expands the nodes from root to the specified node */function expandPathTo(node, inclusive){	// when the node is a link, get the plus/minus image	if (node.tagName == "A") 	{		var img = getChildNode(node.parentNode, "IMG")		if (img == null) return;		expandPathTo(img, inclusive);		return;	}		if (inclusive && isCollapsed(node))		expand(node);			var li = node.parentNode;	if (li == null) return;	var ul = li.parentNode;	if (ul == null) return;	li = ul.parentNode;	if (li == null) return;	var img = getChildNode(li, "IMG");	if (img == null) return;			expandPathTo(img, true);}/** * Returns true when this is an expanded tree node */function isExpanded(node) {  return node.className == "expanded";}/** * Returns true when this is a collapsed tree node */function isCollapsed(node) {  return  node.className == "collapsed";}/** * Highlights link */function highlightTopic(topic){	if (isMozilla)		window.getSelection().removeAllRanges();  	var a = getAnchorNode(topic);   	if (a != null)  	{  	  	parent.parent.parent.setContentToolbarTitle(tocTitle);  	  	if (oldActive)   	  		oldActive.className = oldActiveClass;  		oldActive = a;  		oldActiveClass = a.className;  		a.className = "active";  		// it looks like the onclick event is not handled in mozilla  		// *** TO DO: handle failed synchronization, do not select in that case  		if (isMozilla && a.onclick)   			a.onclick()  		//if (isIE)  		//	a.hideFocus = "true";  	}}/** * Selects a topic in the tree: expand tree and highlight it * returns true if success */function selectTopic(topic){	if (!topic)		return false;			// remove the query, if any	var i = topic.indexOf('?');	if (i != -1)		topic = topic.substring(0, i);	var links = document.getElementsByTagName("a");	for (var i=0; i<links.length; i++)	{		if (topic == links[i].href)		{			expandPathTo(links[i], false);			highlightTopic(links[i]);			scrollIntoView(links[i]);			return true;		}	}	return false;}/** * Selects a topic in the tree: expand tree and highlight it * returns true if success */function selectTopicById(id){	var topic = document.getElementById(id);	if (topic)	{		expandPathTo(topic, false);		highlightTopic(topic);		scrollIntoView(topic);		return true;	}	return false;}/** * Scrolls the page to show the specified element */function scrollIntoView(node){	var scroll = getVerticalScroll(node);	if (scroll != 0)		window.scrollBy(0, scroll);}/** * Scrolls the page to show the specified element */function getVerticalScroll(node){	var nodeTop = node.offsetTop;	var nodeBottom = nodeTop + node.offsetHeight;	var pageTop = 0;	var pageBottom = 0;		if (isIE)	{		pageTop = document.body.scrollTop; 		pageBottom = pageTop + document.body.clientHeight;		} 	else if (isMozilla)	{		pageTop = window.pageYOffset;		pageBottom = pageTop + window.innerHeight - node.offsetHeight;	}		var scroll = 0;	if (nodeTop >= pageTop )	{		if (nodeBottom <= pageBottom)			scroll = 0; // already in view		else			scroll = nodeBottom - pageBottom;	}	else	{		scroll = nodeTop - pageTop;	}		return scroll;}/* * Currently called on IE only */function focusHandler(e){	/*if (isMozilla)		return;	*/			try{		if (oldActive){			// only focus when the element is visible			var scroll = getVerticalScroll(oldActive);			if (scroll == 0)				oldActive.focus();		}			}	catch(e){}}/** * display topic label in the status line on mouse over topic */function mouseMoveHandler(e) {	var overNode = getTarget(e); 	if (!overNode) return;  		overNode = getAnchorNode(overNode);	  if (overNode == null){	   window.status = "";	   return;	  } 	if (isMozilla)		e.cancelBubble = false;  	 	if (overNode.title == "") {		if (overNode.innerText)			overNode.title = overNode.innerText;		else if (overNode.text)			overNode.title = overNode.text;	}	window.status = overNode.title;}/** * handler for expanding / collapsing topic tree */function mouseClickHandler(e) {  	var clickedNode = getTarget(e);  	if (isPlusMinus(clickedNode) )  	{	    	if (isCollapsed(clickedNode))    			expand(clickedNode);  		else if (isExpanded(clickedNode))   	  		collapse(clickedNode);  	}  	else  	{  		var plus_minus = getPlusMinus(clickedNode);  		if (plus_minus != null)  			highlightTopic(plus_minus);  	}  	  	if (isMozilla)  		e.cancelBubble = true;  	else if (isIE)  		window.event.cancelBubble = true;}/** * handler for expanding / collapsing topic tree */function mouseDblClickHandler(e) {  	var clickedNode = getTarget(e);  	if (!clickedNode) return;  	var plus_minus = getPlusMinus(clickedNode);  	if (plus_minus != null)  	{	    	if (isCollapsed(plus_minus))    			expand(plus_minus);  		else if (isExpanded(plus_minus))   	  		collapse(plus_minus);  	  		  		    		highlightTopic(plus_minus);  	}    	if (isMozilla)  		e.cancelBubble = true;  	else if (isIE)  		window.event.cancelBubble = true;}/** * Handler for key down (arrows) */function keyDownHandler(e){	var key;	if (isIE) {		key = window.event.keyCode;	} else if (isMozilla) {		key = e.keyCode;	}			if (key <37 || key > 40) 		return true;		if (isMozilla)  		e.cancelBubble = true;  	else if (isIE)  		window.event.cancelBubble = true;  		  	if (key == 39) { // Right arrow, expand		var clickedNode = getTarget(e);  		if (!clickedNode) return;  		if (isIE){			if(clickedNode.id!=null){				if(clickedNode.id.charAt(0)=='b'){					if(clickedNode.name!="opened"){						loadTOC(clickedNode.name);						return true;					}				}			}		}  		var plus_minus = getPlusMinus(clickedNode);  		if (plus_minus != null)  		{	    		if (isCollapsed(plus_minus))    				expand(plus_minus);  			  			highlightTopic(plus_minus);  			scrollIntoView(clickedNode);  		}  	} else if (key == 37) { // Left arrow,collapse		var clickedNode = getTarget(e);  		if (!clickedNode) return;  		  		if(clickedNode.id!=null){  			if(clickedNode.id.charAt(0)=='b'){				if(clickedNode.name=="opened"){					loadTOC(" ");					return true;				}				else{ 						return true;				}			}					}  		var plus_minus = getPlusMinus(clickedNode);  		if (plus_minus != null)  		{	    		if (isExpanded(plus_minus))    				collapse(plus_minus);  			  			highlightTopic(plus_minus);  			scrollIntoView(clickedNode);  		}  	} else if (key == 40 ) { // down arrow  		var clickedNode = getTarget(e);  		if (!clickedNode) return;		var next = getNextDown(clickedNode);		if (next)			next.focus();  	} else if (key == 38 ) { // up arrow  		var clickedNode = getTarget(e);  		if (!clickedNode) return;		var next = getNextUp(clickedNode);		if (next)			next.focus();  	}  	  	 			  	return true;}if (isMozilla) {  document.addEventListener('click', mouseClickHandler, true);  document.addEventListener('dblclick', mouseDblClickHandler, true);  document.addEventListener('mousemove', mouseMoveHandler, true);  document.addEventListener('keydown', keyDownHandler, true);}else if (isIE){  document.onclick = mouseClickHandler;  document.ondblclick = mouseDblClickHandler;  document.onmousemove = mouseMoveHandler;  document.onkeydown = keyDownHandler;  //window.onfocus = focusHandler;}