<!DOCTYPE html>
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<HTML>
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<HEAD>
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<TITLE> ZTREE DEMO - beforeDrag / onDrag / beforeDrop / onDrop</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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edit: {
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drag: {
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autoExpandTrigger: true,
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prev: dropPrev,
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inner: dropInner,
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next: dropNext
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},
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enable: true,
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showRemoveBtn: false,
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showRenameBtn: false
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},
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data: {
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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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beforeDrag: beforeDrag,
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beforeDrop: beforeDrop,
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beforeDragOpen: beforeDragOpen,
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onDrag: onDrag,
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onDrop: onDrop,
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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:"随意拖拽 1", open:true},
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{ id:11, pId:1, name:"随意拖拽 1-1"},
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{ id:12, pId:1, name:"随意拖拽 1-2"},
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{ id:121, pId:12, name:"随意拖拽 1-2-1"},
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{ id:122, pId:12, name:"随意拖拽 1-2-2"},
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{ id:123, pId:12, name:"随意拖拽 1-2-3"},
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{ id:13, pId:1, name:"禁止拖拽 1-3", open:true, drag:false},
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{ id:131, pId:13, name:"禁止拖拽 1-3-1", drag:false},
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{ id:132, pId:13, name:"禁止拖拽 1-3-2", drag:false},
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{ id:132, pId:13, name:"禁止拖拽 1-3-3", drag:false},
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{ id:2, pId:0, name:"禁止子节点移走 2", open:true, childOuter:false},
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{ id:21, pId:2, name:"我不想成为父节点 2-1", dropInner:false},
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{ id:22, pId:2, name:"我不要成为根节点 2-2", dropRoot:false},
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{ id:23, pId:2, name:"拖拽试试看 2-3"},
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{ id:3, pId:0, name:"禁止子节点排序/增加 3", open:true, childOrder:false, dropInner:false},
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{ id:31, pId:3, name:"随意拖拽 3-1"},
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{ id:32, pId:3, name:"随意拖拽 3-2"},
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{ id:33, pId:3, name:"随意拖拽 3-3"}
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];
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function dropPrev(treeId, nodes, targetNode) {
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var pNode = targetNode.getParentNode();
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if (pNode && pNode.dropInner === false) {
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return false;
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} else {
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for (var i=0,l=curDragNodes.length; i<l; i++) {
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var curPNode = curDragNodes[i].getParentNode();
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if (curPNode && curPNode !== targetNode.getParentNode() && curPNode.childOuter === false) {
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return false;
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}
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}
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}
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return true;
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}
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function dropInner(treeId, nodes, targetNode) {
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if (targetNode && targetNode.dropInner === false) {
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return false;
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} else {
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for (var i=0,l=curDragNodes.length; i<l; i++) {
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if (!targetNode && curDragNodes[i].dropRoot === false) {
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return false;
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} else if (curDragNodes[i].parentTId && curDragNodes[i].getParentNode() !== targetNode && curDragNodes[i].getParentNode().childOuter === false) {
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return false;
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}
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}
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}
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return true;
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}
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function dropNext(treeId, nodes, targetNode) {
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var pNode = targetNode.getParentNode();
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if (pNode && pNode.dropInner === false) {
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return false;
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} else {
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for (var i=0,l=curDragNodes.length; i<l; i++) {
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var curPNode = curDragNodes[i].getParentNode();
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if (curPNode && curPNode !== targetNode.getParentNode() && curPNode.childOuter === false) {
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return false;
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}
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}
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}
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return true;
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}
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var log, className = "dark", curDragNodes, autoExpandNode;
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function beforeDrag(treeId, treeNodes) {
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className = (className === "dark" ? "":"dark");
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showLog("[ "+getTime()+" beforeDrag ] drag: " + treeNodes.length + " nodes." );
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for (var i=0,l=treeNodes.length; i<l; i++) {
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if (treeNodes[i].drag === false) {
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curDragNodes = null;
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return false;
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} else if (treeNodes[i].parentTId && treeNodes[i].getParentNode().childDrag === false) {
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curDragNodes = null;
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return false;
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}
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}
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curDragNodes = treeNodes;
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return true;
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}
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function beforeDragOpen(treeId, treeNode) {
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autoExpandNode = treeNode;
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return true;
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}
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function beforeDrop(treeId, treeNodes, targetNode, moveType, isCopy) {
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className = (className === "dark" ? "":"dark");
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showLog("[ "+getTime()+" beforeDrop ] moveType:" + moveType);
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showLog("target: " + (targetNode ? targetNode.name : "root") + " -- is "+ (isCopy==null? "cancel" : isCopy ? "copy" : "move"));
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return true;
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}
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function onDrag(event, treeId, treeNodes) {
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className = (className === "dark" ? "":"dark");
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showLog("[ "+getTime()+" onDrag ] drag: " + treeNodes.length + " nodes." );
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}
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function onDrop(event, treeId, treeNodes, targetNode, moveType, isCopy) {
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className = (className === "dark" ? "":"dark");
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showLog("[ "+getTime()+" onDrop ] moveType:" + moveType);
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showLog("target: " + (targetNode ? targetNode.name : "root") + " -- is "+ (isCopy==null? "cancel" : isCopy ? "copy" : "move"))
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}
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function onExpand(event, treeId, treeNode) {
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if (treeNode === autoExpandNode) {
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className = (className === "dark" ? "":"dark");
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showLog("[ "+getTime()+" onExpand ] " + treeNode.name);
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}
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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 setTrigger() {
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var zTree = $.fn.zTree.getZTreeObj("treeDemo");
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zTree.setting.edit.drag.autoExpandTrigger = $("#callbackTrigger").attr("checked");
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}
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$(document).ready(function(){
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$.fn.zTree.init($("#treeDemo"), setting, zNodes);
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$("#callbackTrigger").bind("change", {}, setTrigger);
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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>拖拽节点高级控制</h1>
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<h6>[ 文件路径: exedit/drag_super.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、beforeDrag / onDrag<br/> beforeDrop / onDrop 事件回调函数控制</h2>
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<ul class="list">
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<li>此 Demo 演示合理利用配置参数实现更加灵活、更加合理的拖拽规则，操作时可以对比"基本控制"的例子</li>
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<li>此 Demo 默认 允许复制 / 移动</li>
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<li class="highlight_red">此 Demo 中拖拽相对位置设置为 function，可以根据节点动态设定，从而可以放弃使用 beforeDrop 回调函数，拖拽时的效果会更好</li>
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<li><p><span class="highlight_red">在对这些灵活的配置熟悉以后，相信你能够做出更加合理的拖拽规则！</span><br/>
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<input type="checkbox" id="callbackTrigger" checked /> 拖拽节点时自动展开父节点是否触发 callback<br/>
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drag / drop log:<br/>
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<ul id="log" class="log"></ul></p></li>
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</ul>
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</li>
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<li class="title"><h2>2、setting 配置信息说明</h2>
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<ul class="list">
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<li>同 "拖拽 节点 基本控制"</li>
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</ul>
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</li>
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<li class="title"><h2>3、treeNode 节点数据说明</h2>
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<ul class="list">
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<li>同 "拖拽 节点 基本控制"</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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