html.js

dojo与json创建无限级树的时候,当在父结点下添加了一个新结点,我怎么让父亲结点重新调用json加载一下子结点内容.

 */
dojo.html.hasClass = function(node, classname){
	return dojo.lang.inArray(dojo.html.getClasses(node), classname);
}

/**
 * Adds the specified class to the beginning of the class list on the
 * passed node. This gives the specified class the highest precidence
 * when style cascading is calculated for the node. Returns true or
 * false; indicating success or failure of the operation, respectively.
 */
dojo.html.prependClass = function(node, classStr){
	classStr += " " + dojo.html.getClass(node);
	return dojo.html.setClass(node, classStr);
}

/**
 * Adds the specified class to the end of the class list on the
 *	passed &node;. Returns &true; or &false; indicating success or failure.
 */
dojo.html.addClass = function(node, classStr){
	if (dojo.html.hasClass(node, classStr)) {
	  return false;
	}
	classStr = dojo.string.trim(dojo.html.getClass(node) + " " + classStr);
	return dojo.html.setClass(node, classStr);
}

/**
 *	Clobbers the existing list of classes for the node, replacing it with
 *	the list given in the 2nd argument. Returns true or false
 *	indicating success or failure.
 */
dojo.html.setClass = function(node, classStr){
	node = dojo.byId(node);
	var cs = new String(classStr);
	try{
		if(typeof node.className == "string"){
			node.className = cs;
		}else if(node.setAttribute){
			node.setAttribute("class", classStr);
			node.className = cs;
		}else{
			return false;
		}
	}catch(e){
		dojo.debug("dojo.html.setClass() failed", e);
	}
	return true;
}

/**
 * Removes the className from the node;. Returns
 * true or false indicating success or failure.
 */ 
dojo.html.removeClass = function(node, classStr, allowPartialMatches){
	var classStr = dojo.string.trim(new String(classStr));

	try{
		var cs = dojo.html.getClasses(node);
		var nca	= [];
		if(allowPartialMatches){
			for(var i = 0; i<cs.length; i++){
				if(cs[i].indexOf(classStr) == -1){ 
					nca.push(cs[i]);
				}
			}
		}else{
			for(var i=0; i<cs.length; i++){
				if(cs[i] != classStr){ 
					nca.push(cs[i]);
				}
			}
		}
		dojo.html.setClass(node, nca.join(" "));
	}catch(e){
		dojo.debug("dojo.html.removeClass() failed", e);
	}

	return true;
}

/**
 * Replaces 'oldClass' and adds 'newClass' to node
 */
dojo.html.replaceClass = function(node, newClass, oldClass) {
	dojo.html.removeClass(node, oldClass);
	dojo.html.addClass(node, newClass);
}

// Enum type for getElementsByClass classMatchType arg:
dojo.html.classMatchType = {
	ContainsAll : 0, // all of the classes are part of the node's class (default)
	ContainsAny : 1, // any of the classes are part of the node's class
	IsOnly : 2 // only all of the classes are part of the node's class
}


/**
 * Returns an array of nodes for the given classStr, children of a
 * parent, and optionally of a certain nodeType
 */
dojo.html.getElementsByClass = function(classStr, parent, nodeType, classMatchType, useNonXpath){
	parent = dojo.byId(parent) || document;
	var classes = classStr.split(/\s+/g);
	var nodes = [];
	if( classMatchType != 1 && classMatchType != 2 ) classMatchType = 0; // make it enum
	var reClass = new RegExp("(\\s|^)((" + classes.join(")|(") + "))(\\s|$)");
	var candidateNodes = [];
	
	if(!useNonXpath && document.evaluate) { // supports dom 3 xpath
		var xpath = "//" + (nodeType || "*") + "[contains(";
		if(classMatchType != dojo.html.classMatchType.ContainsAny){
			xpath += "concat(' ',@class,' '), ' " +
			classes.join(" ') and contains(concat(' ',@class,' '), ' ") +
			" ')]";
		}else{
			xpath += "concat(' ',@class,' '), ' " +
			classes.join(" ')) or contains(concat(' ',@class,' '), ' ") +
			" ')]";
		}
		var xpathResult = document.evaluate(xpath, parent, null, XPathResult.ANY_TYPE, null);
		var result = xpathResult.iterateNext();
		while(result){
			try{
				candidateNodes.push(result);
				result = xpathResult.iterateNext();
			}catch(e){ break; }
		}
		return candidateNodes;
	}else{
		if(!nodeType){
			nodeType = "*";
		}
		candidateNodes = parent.getElementsByTagName(nodeType);

		var node, i = 0;
		outer:
		while(node = candidateNodes[i++]){
			var nodeClasses = dojo.html.getClasses(node);
			if(nodeClasses.length == 0){ continue outer; }
			var matches = 0;
	
			for(var j = 0; j < nodeClasses.length; j++){
				if(reClass.test(nodeClasses[j])){
					if(classMatchType == dojo.html.classMatchType.ContainsAny){
						nodes.push(node);
						continue outer;
					}else{
						matches++;
					}
				}else{
					if(classMatchType == dojo.html.classMatchType.IsOnly){
						continue outer;
					}
				}
			}
	
			if(matches == classes.length){
				if(	(classMatchType == dojo.html.classMatchType.IsOnly)&&
					(matches == nodeClasses.length)){
					nodes.push(node);
				}else if(classMatchType == dojo.html.classMatchType.ContainsAll){
					nodes.push(node);
				}
			}
		}
		return nodes;
	}
}

dojo.html.getElementsByClassName = dojo.html.getElementsByClass;

/**
 * Returns the mouse position relative to the document (not the viewport).
 * For example, if you have a document that is 10000px tall,
 * but your browser window is only 100px tall,
 * if you scroll to the bottom of the document and call this function it
 * will return {x: 0, y: 10000}
 */
dojo.html.getCursorPosition = function(e){
	e = e || window.event;
	var cursor = {x:0, y:0};
	if(e.pageX || e.pageY){
		cursor.x = e.pageX;
		cursor.y = e.pageY;
	}else{
		var de = document.documentElement;
		var db = document.body;
		cursor.x = e.clientX + ((de||db)["scrollLeft"]) - ((de||db)["clientLeft"]);
		cursor.y = e.clientY + ((de||db)["scrollTop"]) - ((de||db)["clientTop"]);
	}
	return cursor;
}

dojo.html.overElement = function(element, e){
	element = dojo.byId(element);
	var mouse = dojo.html.getCursorPosition(e);

	with(dojo.html){
		var top = getAbsoluteY(element, true);
		var bottom = top + getInnerHeight(element);
		var left = getAbsoluteX(element, true);
		var right = left + getInnerWidth(element);
	}
	
	return (mouse.x >= left && mouse.x <= right &&
		mouse.y >= top && mouse.y <= bottom);
}

dojo.html.setActiveStyleSheet = function(title){
	var i = 0, a, els = document.getElementsByTagName("link");
	while (a = els[i++]) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")){
			a.disabled = true;
			if (a.getAttribute("title") == title) { a.disabled = false; }
		}
	}
}

dojo.html.getActiveStyleSheet = function(){
	var i = 0, a, els = document.getElementsByTagName("link");
	while (a = els[i++]) {
		if (a.getAttribute("rel").indexOf("style") != -1 &&
			a.getAttribute("title") && !a.disabled) { return a.getAttribute("title"); }
	}
	return null;
}

dojo.html.getPreferredStyleSheet = function(){
	var i = 0, a, els = document.getElementsByTagName("link");
	while (a = els[i++]) {
		if(a.getAttribute("rel").indexOf("style") != -1
			&& a.getAttribute("rel").indexOf("alt") == -1
			&& a.getAttribute("title")) { return a.getAttribute("title"); }
	}
	return null;
}

dojo.html.body = function(){
	// Note: document.body is not defined for a strict xhtml document
	return document.body || document.getElementsByTagName("body")[0];
}

/**
 * Like dojo.dom.isTag, except case-insensitive
**/
dojo.html.isTag = function(node /* ... */) {
	node = dojo.byId(node);
	if(node && node.tagName) {
		var arr = dojo.lang.map(dojo.lang.toArray(arguments, 1),
			function(a) { return String(a).toLowerCase(); });
		return arr[ dojo.lang.find(node.tagName.toLowerCase(), arr) ] || "";
	}
	return "";
}

dojo.html.copyStyle = function(target, source){
	// work around for opera which doesn't have cssText, and for IE which fails on setAttribute 
	if(dojo.lang.isUndefined(source.style.cssText)){ 
		target.setAttribute("style", source.getAttribute("style")); 
	}else{
		target.style.cssText = source.style.cssText; 
	}
	dojo.html.addClass(target, dojo.html.getClass(source));
}

dojo.html._callExtrasDeprecated = function(inFunc, args) {
	var module = "dojo.html.extras";
	dojo.deprecated("dojo.html." + inFunc, "moved to " + module, "0.4");
	dojo["require"](module); // weird syntax to fool list-profile-deps (build)
	return dojo.html[inFunc].apply(dojo.html, args);
}

dojo.html.createNodesFromText = function() {
	return dojo.html._callExtrasDeprecated('createNodesFromText', arguments);
}

dojo.html.gravity = function() {
	return dojo.html._callExtrasDeprecated('gravity', arguments);
}

dojo.html.placeOnScreen = function() {
	return dojo.html._callExtrasDeprecated('placeOnScreen', arguments);
}

dojo.html.placeOnScreenPoint = function() {
	return dojo.html._callExtrasDeprecated('placeOnScreenPoint', arguments);
}

dojo.html.renderedTextContent = function() {
	return dojo.html._callExtrasDeprecated('renderedTextContent', arguments);
}

dojo.html.BackgroundIframe = function() {
	return dojo.html._callExtrasDeprecated('BackgroundIframe', arguments);
}