<!DOCTYPE html>
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<HTML>
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<HEAD>
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<TITLE> ZTREE DEMO - beforeExpand / onExpand && beforeCollapse / onCollapse</TITLE>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<link rel="stylesheet" href="../../../css/demo.css" type="text/css">
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<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
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<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
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<script type="text/javascript" src="../../../js/jquery.ztree.core.js"></script>
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<!-- <script type="text/javascript" src="../../../js/jquery.ztree.excheck.js"></script>
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<script type="text/javascript" src="../../../js/jquery.ztree.exedit.js"></script>-->
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<SCRIPT type="text/javascript">
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<!--
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var setting = {
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view: {
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selectedMulti: false
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},
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data: {
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key: {
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title:"t"
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},
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simpleData: {
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enable: true
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}
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},
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callback: {
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beforeClick: beforeClick,
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beforeCollapse: beforeCollapse,
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beforeExpand: beforeExpand,
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onCollapse: onCollapse,
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onExpand: onExpand
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}
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};
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var zNodes =[
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{ id:1, pId:0, name:"ordinary parent 1", t:"I am ordinary, just expand or collapse on me", open:false},
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{ id:11, pId:1, name:"leaf node 1-1", t:"..."},
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{ id:12, pId:1, name:"ordinary parent 2", t:"I am ordinary, just expand or collapse on me", open:false},
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{ id:121, pId:12, name:"parent node - 121", t:"...", open:true},
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{ id:1211, pId:121, name:"parent node - 1211", t:"...", open:false},
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{ id:1212, pId:1211, name:"leaf node - 1212", t:"..."},
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{ id:1213, pId:121, name:"parent node - 1213", t:"...", open:false},
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{ id:1214, pId:1213, name:"leaf node - 1214", t:"..."},
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{ id:123, pId:12, name:"leaf node 2-3", t:"..."},
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{ id:13, pId:1, name:"leaf node 1-3", t:"..."},
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{ id:2, pId:0, name:"can't collapse me", t:"can't collapse me...Unless you use expandAll method.", open:true, collapse:false},
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{ id:21, pId:2, name:"leaf node 2-1", t:"You can't collapse my parent"},
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{ id:22, pId:2, name:"leaf node 2-2", t:"You can't collapse my parent"},
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{ id:23, pId:2, name:"leaf node 2-3", t:"You can't collapse my parent"},
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{ id:3, pId:0, name:"can't expand me", t:"can't expand me...Unless you use expandAll method.", open:false, expand:false},
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{ id:31, pId:3, name:"leaf node 3-1", t:"OMG, you can see me!! Do you use the expandAll method?"},
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{ id:32, pId:3, name:"leaf node 3-2", t:"OMG, you can see me!! Do you use the expandAll method?"},
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{ id:33, pId:3, name:"leaf node 3-3", t:"OMG, you can see me!! Do you use the expandAll method?"},
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{ id:4, pId:0, name:"empty parent 1", t:"I have nothing...", isParent:true, open:false}
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];
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var log, className = "dark";
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function beforeClick(treeId, treeNode) {
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if (treeNode.isParent) {
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return true;
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} else {
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alert("This Demo is used to test the parent node expand / collapse...\n\nGo to click parent node... ");
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return false;
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}
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}
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function beforeCollapse(treeId, treeNode) {
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className = (className === "dark" ? "":"dark");
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showLog("[ "+getTime()+" beforeCollapse ] " + treeNode.name );
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return (treeNode.collapse !== false);
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}
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function onCollapse(event, treeId, treeNode) {
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showLog("[ "+getTime()+" onCollapse ] " + treeNode.name);
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}
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function beforeExpand(treeId, treeNode) {
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className = (className === "dark" ? "":"dark");
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showLog("[ "+getTime()+" beforeExpand ] " + treeNode.name );
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return (treeNode.expand !== false);
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}
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function onExpand(event, treeId, treeNode) {
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showLog("[ "+getTime()+" onExpand ] " + treeNode.name);
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}
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function showLog(str) {
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if (!log) log = $("#log");
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log.append("<li class='"+className+"'>"+str+"</li>");
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if(log.children("li").length > 8) {
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log.get(0).removeChild(log.children("li")[0]);
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}
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}
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function getTime() {
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var now= new Date(),
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h=now.getHours(),
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m=now.getMinutes(),
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s=now.getSeconds(),
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ms=now.getMilliseconds();
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return (h+":"+m+":"+s+ " " +ms);
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}
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function expandNode(e) {
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var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
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type = e.data.type,
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nodes = zTree.getSelectedNodes();
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if (type.indexOf("All")<0 && nodes.length == 0) {
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alert("Please select one parent node at first...");
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}
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if (type == "expandAll") {
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zTree.expandAll(true);
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} else if (type == "collapseAll") {
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zTree.expandAll(false);
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} else {
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var callbackFlag = $("#callbackTrigger").attr("checked");
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for (var i=0, l=nodes.length; i<l; i++) {
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zTree.setting.view.fontCss = {};
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if (type == "expand") {
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zTree.expandNode(nodes[i], true, null, null, callbackFlag);
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} else if (type == "collapse") {
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zTree.expandNode(nodes[i], false, null, null, callbackFlag);
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} else if (type == "toggle") {
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zTree.expandNode(nodes[i], null, null, null, callbackFlag);
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} else if (type == "expandSon") {
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zTree.expandNode(nodes[i], true, true, null, callbackFlag);
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} else if (type == "collapseSon") {
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zTree.expandNode(nodes[i], false, true, null, callbackFlag);
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}
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}
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}
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}
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$(document).ready(function(){
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$.fn.zTree.init($("#treeDemo"), setting, zNodes);
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$("#expandBtn").bind("click", {type:"expand"}, expandNode);
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$("#collapseBtn").bind("click", {type:"collapse"}, expandNode);
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$("#toggleBtn").bind("click", {type:"toggle"}, expandNode);
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$("#expandSonBtn").bind("click", {type:"expandSon"}, expandNode);
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$("#collapseSonBtn").bind("click", {type:"collapseSon"}, expandNode);
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$("#expandAllBtn").bind("click", {type:"expandAll"}, expandNode);
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$("#collapseAllBtn").bind("click", {type:"collapseAll"}, expandNode);
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});
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//-->
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</SCRIPT>
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</HEAD>
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<BODY>
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<h1>Control of Expand Node</h1>
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<h6>[ File Path: core/expand.html ]</h6>
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<div class="content_wrap">
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<div class="zTreeDemoBackground left">
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<ul id="treeDemo" class="ztree"></ul>
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</div>
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<div class="right">
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<ul class="info">
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<li class="title"><h2>1, 'beforeCollapse / onCollapse'<br/> 'beforeExpand / onExpand' callback function</h2>
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<ul class="list">
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<li>Use 'beforeCollapse / onCollapse' and 'beforeExpand / onExpand' callback function can control whether to allow expand or collapse the parent node
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. This simple demo shows how to monitor the collapse and expand event.</li>
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<li><p>Try: <br/>
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<input type="checkbox" id="callbackTrigger" checked /> Whether trigger the callback when execution expandNode() method.<br/>
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Single Node --[ <a id="expandBtn" href="#" title="expand..." onclick="return false;">expand</a> ]
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[ <a id="collapseBtn" href="#" title="collapse..." onclick="return false;">collapse</a> ]
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[ <a id="toggleBtn" href="#" title="what do you want?..." onclick="return false;">toggle</a> ]<br/>
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Single Node (including child) --[ <a id="expandSonBtn" href="#" title="expand (including child)..." onclick="return false;">expand</a> ]
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[ <a id="collapseSonBtn" href="#" title="collapse (including child)..." onclick="return false;">collapse</a> ]<br/>
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All Nodes --[ <a id="expandAllBtn" href="#" title="expand All!!" onclick="return false;">expand All</a> ]
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[ <a id="collapseAllBtn" href="#" title="collapse All!!" onclick="return false;">collapse All</a> ]</p>
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<li><p><span class="highlight_red">How to use zTreeObj.updateNode method, please see the API documentation.</span><br/>
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collapse / expand log:<br/>
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<ul id="log" class="log"></ul></p>
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</li>
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</ul>
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</li>
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<li class="title"><h2>2, Explanation of setting</h2>
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<ul class="list">
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<li class="highlight_red">Set attributes about 'setting.callback.beforeCollapse / onCollapse / beforeExpand / onExpand', please see the API documentation for more related contents.</li>
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<li class="highlight_red">If you need to adjust the expand / collapse animation effects, please see the API documentation about setting.view.expandSpeed.</li>
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</ul>
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</li>
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<li class="title"><h2>3, Explanation of treeNode</h2>
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<ul class="list">
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<li>No special requirements on the node data, the user can add custom attributes.</li>
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</ul>
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</li>
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</ul>
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</div>
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</div>
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</BODY>
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</HTML>
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