<!DOCTYPE html>
<HTML>
<HEAD>
	<TITLE> ZTREE DEMO - beforeExpand / onExpand && beforeCollapse / onCollapse</TITLE>
	<meta http-equiv="content-type" content="text/html; charset=UTF-8">
	<link rel="stylesheet" href="../../../css/demo.css" type="text/css">
	<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
	<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
	<script type="text/javascript" src="../../../js/jquery.ztree.core-3.5.js"></script>
	<!--  <script type="text/javascript" src="../../../js/jquery.ztree.excheck-3.5.js"></script>
	  <script type="text/javascript" src="../../../js/jquery.ztree.exedit-3.5.js"></script>-->
	<SCRIPT type="text/javascript">
		<!--
		var setting = {
			view: {
				selectedMulti: false
			},
			data: {
				key: {
					title:"t"
				},
				simpleData: {
					enable: true
				}
			},
			callback: {
				beforeClick: beforeClick,
				beforeCollapse: beforeCollapse,
				beforeExpand: beforeExpand,
				onCollapse: onCollapse,
				onExpand: onExpand
			}
		};

		var zNodes =[
			{ id:1, pId:0, name:"可折腾的父节点 1", t:"我很普通，随便 展开/折叠 我吧", open:false},
			{ id:11, pId:1, name:"叶子节点 - 1", t:"我老爸很普通，随便折腾他吧"},
			{ id:12, pId:1, name:"可折腾的父节点 2", t:"我和我老爸都很普通，随便折腾我和他吧", open: false},
			{ id:121, pId:12, name:"父节点 - 121", t:"我老爸很普通，随便折腾他吧", open:true},
			{ id:1211, pId:121, name:"父节点 - 1211", t:"我老爸很普通，随便折腾他吧", open:false},
			{ id:1212, pId:1211, name:"叶子节点 - 1212", t:"我老爸很普通，随便折腾他吧"},
			{ id:1213, pId:121, name:"父节点 - 1213", t:"我老爸很普通，随便折腾他吧", open:false},
			{ id:1214, pId:1213, name:"叶子节点 - 1214", t:"我老爸很普通，随便折腾他吧"},
			{ id:123, pId:12, name:"叶子节点 - 23", t:"我老爸很普通，随便折腾他吧"},
			{ id:13, pId:1, name:"叶子节点 - 3", t:"我老爸很普通，随便折腾他吧"},
			{ id:2, pId:1, name:"无法折叠的父节点", t:"休想让我折叠起来...除非你用 expandAll 方法", open:false, collapse:false},
			{ id:21, pId:2, name:"叶子节点2 - 1", t:"哈哈哈，我老爸NB吧，不能折叠吧？"},
			{ id:22, pId:21, name:"叶子节点2 - 2", t:"哈哈哈，我老爸NB吧，不能折叠吧？"},
			{ id:23, pId:21, name:"叶子节点2 - 3", t:"哈哈哈，我老爸NB吧，不能折叠吧？"},
			{ id:3, pId:2, name:"无法展开的父节点", t:"就凭你也想展开我？难呀...嘿嘿, 除非你用 expandAll 方法", open:false, expand:true},
			{ id:31, pId:3, name:"叶子节点3 - 1", t:"居然让你看到了...莫非你用了全部节点展开？"},
			{ id:32, pId:31, name:"叶子节点3 - 2", t:"居然让你看到了...莫非你用了全部节点展开？"},
			{ id:33, pId:31, name:"叶子节点3 - 3", t:"居然让你看到了...莫非你用了全部节点展开？"},
			{ id:4, pId:3, name:"空空的父节点 1", t:"一无所有...除了我自己", isParent:true, open:false}
		];

		var log, className = "dark";
		function beforeClick(treeId, treeNode) {
			if (treeNode.isParent) {
				return true;
			} else {
				alert("这个 Demo 是用来测试 展开 / 折叠 的...\n\n去点击父节点吧... ");
				return false;
			}
		}
		function beforeCollapse(treeId, treeNode) {
			className = (className === "dark" ? "":"dark");
			showLog("[ "+getTime()+" beforeCollapse ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name );
			return (treeNode.collapse !== false);
		}
		function onCollapse(event, treeId, treeNode) {
			showLog("[ "+getTime()+" onCollapse ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
		}		
		function beforeExpand(treeId, treeNode) {
			className = (className === "dark" ? "":"dark");
			showLog("[ "+getTime()+" beforeExpand ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name );
			return (treeNode.expand !== false);
		}
		function onExpand(event, treeId, treeNode) {
			showLog("[ "+getTime()+" onExpand ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
		}
		function showLog(str) {
			if (!log) log = $("#log");
			log.append("<li class='"+className+"'>"+str+"</li>");
			if(log.children("li").length > 8) {
				log.get(0).removeChild(log.children("li")[0]);
			}
		}
		function getTime() {
			var now= new Date(),
			h=now.getHours(),
			m=now.getMinutes(),
			s=now.getSeconds(),
			ms=now.getMilliseconds();
			return (h+":"+m+":"+s+ " " +ms);
		}

		function expandNode(e) {
			var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
			type = e.data.type,
			nodes = zTree.getSelectedNodes();
			if (type.indexOf("All")<0 && nodes.length == 0) {
				alert("请先选择一个父节点");
			}

			if (type == "expandAll") {
				zTree.expandAll(true);
			} else if (type == "collapseAll") {
				zTree.expandAll(false);
			} else {
				var callbackFlag = $("#callbackTrigger").attr("checked");
				for (var i=0, l=nodes.length; i<l; i++) {
					zTree.setting.view.fontCss = {};
					if (type == "expand") {
						zTree.expandNode(nodes[i], true, null, null, callbackFlag);
					} else if (type == "collapse") {
						zTree.expandNode(nodes[i], false, null, null, callbackFlag);
					} else if (type == "toggle") {
						zTree.expandNode(nodes[i], null, null, null, callbackFlag);
					} else if (type == "expandSon") {
						zTree.expandNode(nodes[i], true, true, null, callbackFlag);
					} else if (type == "collapseSon") {
						zTree.expandNode(nodes[i], false, true, null, callbackFlag);
					}
				}
			}
		}

		$(document).ready(function(){
			$.fn.zTree.init($("#treeDemo"), setting, zNodes);
			$("#expandBtn").bind("click", {type:"expand"}, expandNode);
			$("#collapseBtn").bind("click", {type:"collapse"}, expandNode);
			$("#toggleBtn").bind("click", {type:"toggle"}, expandNode);
			$("#expandSonBtn").bind("click", {type:"expandSon"}, expandNode);
			$("#collapseSonBtn").bind("click", {type:"collapseSon"}, expandNode);
			$("#expandAllBtn").bind("click", {type:"expandAll"}, expandNode);
			$("#collapseAllBtn").bind("click", {type:"collapseAll"}, expandNode);
		});
		//-->
	</SCRIPT>
</HEAD>

<BODY>
<h1>展开 / 折叠父节点控制</h1>
<h6>[ 文件路径: core/expand.html ]</h6>
<div class="content_wrap">
	<div class="zTreeDemoBackground left">
		<ul id="treeDemo" class="ztree"></ul>
	</div>
	<div class="right">
		<ul class="info">
			<li class="title"><h2>1、beforeCollapse / onCollapse<br/>&nbsp;&nbsp;beforeExpand / onExpand 事件回调函数控制</h2>
				<ul class="list">
				<li>利用 collapse / expand 事件回调函数 可以控制父节点是否允许 展开 / 折叠，这里简单演示如何监控此事件</li>
				<li><p>试试看：<br/>
					&nbsp;&nbsp;&nbsp;&nbsp;<input type="checkbox" id="callbackTrigger" checked /> expandNode 方法是否触发 callback<br/>
					&nbsp;&nbsp;&nbsp;&nbsp;单个节点--[ <a id="expandBtn" href="#" title="不想展开我就不展开你..." onclick="return false;">展开</a> ]
					&nbsp;&nbsp;&nbsp;&nbsp;[ <a id="collapseBtn" href="#" title="不想折叠我就不折叠你..." onclick="return false;">折叠</a> ]
					&nbsp;&nbsp;&nbsp;&nbsp;[ <a id="toggleBtn" href="#" title="你想怎样？..." onclick="return false;">展开 / 折叠 切换</a> ]<br/>
					&nbsp;&nbsp;&nbsp;&nbsp;单个节点（包括子节点）--[ <a id="expandSonBtn" href="#" title="不想展开我就不展开你..." onclick="return false;">展开</a> ]
					&nbsp;&nbsp;&nbsp;&nbsp;[ <a id="collapseSonBtn" href="#" title="不想折叠我就不折叠你..." onclick="return false;">折叠</a> ]<br/>
					&nbsp;&nbsp;&nbsp;&nbsp;全部节点--[ <a id="expandAllBtn" href="#" title="不管你有多NB，统统都要听我的！！" onclick="return false;">展开</a> ]
					&nbsp;&nbsp;&nbsp;&nbsp;[ <a id="collapseAllBtn" href="#" title="不管你有多NB，统统都要听我的！！" onclick="return false;">折叠</a> ]</p>
				<li><p><span class="highlight_red">使用 zTreeObj.expandNode 方法，详细请参见 API 文档中的相关内容</span><br/>
					collapse / expand log:<br/>
					<ul id="log" class="log"></ul></p>
				</li>
				</ul>
			</li>
			<li class="title"><h2>2、setting 配置信息说明</h2>
				<ul class="list">
				<li class="highlight_red">事件回调函数的使用，详细请参见 API 文档中 setting.callback 的相关内容</li>
				<li class="highlight_red">如果需要调整 展开 / 折叠 的动画效果， 详细请参见 API 文档中 setting.view.expandSpeed 的相关内容</li>
				</ul>
			</li>
			<li class="title"><h2>3、treeNode 节点数据说明</h2>
				<ul class="list">
				<li>对 节点数据 没有特殊要求，用户可以根据自己的需求添加自定义属性</li>
				</ul>
			</li>
		</ul>
	</div>
</div>
</BODY>
</HTML>