/******************************************************************************* * Copyright (c) 2005, 2006 Intel 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: *     Intel Corporation - initial API and implementation *******************************************************************************/ var isMozilla = parent.isMozilla;var isIE = parent.isIE;var oldActive;var oldActiveClass = "";/** * 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) {		if (ul.className == "expanded") {			return getDescendantNode(ul, "A");		} else {			var ulNext = getNextSibling(ul);			if (ulNext && ulNext.nodeType == 1 && ulNext.tagName == "UL") {				return getDescendantNode(ulNext, "A");			}		}	}	// Try next sibling in current UL	var li_sib = getNextSibling(li);	if (li_sib != null) {		return getDescendantNode(li_sib, "A");	}	// Try child from next UL	var ulNext = getNextSibling(li.parentNode);	if (ulNext && ulNext.nodeType == 1 && ulNext.tagName == "UL") {		return getDescendantNode(ulNext, "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 "up" 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 {		// look into previous UL		var ulPrev = getPrevSibling(li.parentNode);		if (ulPrev && ulPrev.nodeType == 1 && ulPrev.tagName == "UL" && ulPrev.className == "expanded") {			var li = getChildNode(ulPrev, "LI");			var candidate = getDescendantNode(li, "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 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"));}/** * 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;}/** * Collapses a tree rooted at the specified element */function collapse(node) {	node.className = "collapsed";	node.src = plus.src;	node.alt = altExpandTopicTitles;	// 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 = altCollapseTopicTitles;	// 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;		}	}}/** * 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) {		// try-catch is a workaround for the getSelection() problem		// reported for Safari 2.0.3		try {			window.getSelection().removeAllRanges();		} catch (e) {}	}	var a = getAnchorNode(topic);	if (a != null) {		// TO DO:		// parent.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 selectTopicById(id) {	var topic = document.getElementById(id);	if (topic) {		highlightTopic(topic);		scrollToViewTop(topic);		return true;	}	return false;}/** * Returns the horizontal offset on which the page should be scrolled to show the node. * Returns 0 if the node is already visible. */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;}/** * 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 so the node gets to the first line */function scrollToViewTop(node) {	window.scrollTo(0, node.offsetTop);}/* * 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 (!clickedNode) return;	var plus_minus = getPlusMinus(clickedNode);	if (plus_minus != null) {		if (isCollapsed(plus_minus)) 			expand(plus_minus);		else if (isPlusMinus(clickedNode) && isExpanded(plus_minus))			// collapse only if click on minus image			collapse(plus_minus);	}	var anchorNode = getAnchorNode(clickedNode);	if (anchorNode) {		highlightTopic(anchorNode);		parent.setTypeinValue(anchorNode);	}	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) {			highlightTopic(next);			parent.setTypeinValue(next);			next.focus();		}	} else if (key == 38) { // up arrow		var clickedNode = getTarget(e);		if (!clickedNode) return;		var next = getNextUp(clickedNode);		if (next) {			highlightTopic(next);			parent.setTypeinValue(next);			next.focus();		}	}	return true;}/** * IndexListFrame onload handler */function onloadHandler() {	parent.listFrame = window;	var node = document.getElementsByTagName("A").item(0);	highlightTopic(node);	scrollToViewTop(node);	if (isMozilla) {		document.addEventListener('click', mouseClickHandler, true);		document.addEventListener('mousemove', mouseMoveHandler, true);		document.addEventListener('keydown', keyDownHandler, true);	} else if (isIE) {		document.onclick = mouseClickHandler;		document.onmousemove = mouseMoveHandler;		document.onkeydown = keyDownHandler;		//window.onfocus = focusHandler;	}}