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<!DOCTYPE html>
<HTML>
<HEAD>
	<TITLE> ZTREE DEMO - beforeDrag / onDrag / beforeDrop / onDrop</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 = {
			edit: {
				drag: {
					autoExpandTrigger: true,
					prev: dropPrev,
					inner: dropInner,
					next: dropNext
				},
				enable: true,
				showRemoveBtn: false,
				showRenameBtn: false
			},
			data: {
				simpleData: {
					enable: true
				}
			},
			callback: {
				beforeDrag: beforeDrag,
				beforeDrop: beforeDrop,
				beforeDragOpen: beforeDragOpen,
				onDrag: onDrag,
				onDrop: onDrop,
				onExpand: onExpand
			}
		};

		var zNodes =[
			{ id:1, pId:0, name:"随意拖拽 1", open:true},
			{ id:11, pId:1, name:"随意拖拽 1-1"},
			{ id:12, pId:1, name:"随意拖拽 1-2"},
			{ id:121, pId:12, name:"随意拖拽 1-2-1"},
			{ id:122, pId:12, name:"随意拖拽 1-2-2"},
			{ id:123, pId:12, name:"随意拖拽 1-2-3"},
			{ id:13, pId:1, name:"禁止拖拽 1-3", open:true, drag:false},
			{ id:131, pId:13, name:"禁止拖拽 1-3-1", drag:false},
			{ id:132, pId:13, name:"禁止拖拽 1-3-2", drag:false},
			{ id:132, pId:13, name:"禁止拖拽 1-3-3", drag:false},
			{ id:2, pId:0, name:"禁止子节点移走 2", open:true, childOuter:false},
			{ id:21, pId:2, name:"我不想成为父节点 2-1", dropInner:false},
			{ id:22, pId:2, name:"我不要成为根节点 2-2", dropRoot:false},
			{ id:23, pId:2, name:"拖拽试试看 2-3"},
			{ id:3, pId:0, name:"禁止子节点排序/增加 3", open:true, childOrder:false, dropInner:false},
			{ id:31, pId:3, name:"随意拖拽 3-1"},
			{ id:32, pId:3, name:"随意拖拽 3-2"},
			{ id:33, pId:3, name:"随意拖拽 3-3"}
		];

		function dropPrev(treeId, nodes, targetNode) {
			var pNode = targetNode.getParentNode();
			if (pNode && pNode.dropInner === false) {
				return false;
			} else {
				for (var i=0,l=curDragNodes.length; i<l; i++) {
					var curPNode = curDragNodes[i].getParentNode();
					if (curPNode && curPNode !== targetNode.getParentNode() && curPNode.childOuter === false) {
						return false;
					}
				}
			}
			return true;
		}
		function dropInner(treeId, nodes, targetNode) {
			if (targetNode && targetNode.dropInner === false) {
				return false;
			} else {
				for (var i=0,l=curDragNodes.length; i<l; i++) {
					if (!targetNode && curDragNodes[i].dropRoot === false) {
						return false;
					} else if (curDragNodes[i].parentTId && curDragNodes[i].getParentNode() !== targetNode && curDragNodes[i].getParentNode().childOuter === false) {
						return false;
					}
				}
			}
			return true;
		}
		function dropNext(treeId, nodes, targetNode) {
			var pNode = targetNode.getParentNode();
			if (pNode && pNode.dropInner === false) {
				return false;
			} else {
				for (var i=0,l=curDragNodes.length; i<l; i++) {
					var curPNode = curDragNodes[i].getParentNode();
					if (curPNode && curPNode !== targetNode.getParentNode() && curPNode.childOuter === false) {
						return false;
					}
				}
			}
			return true;
		}

		var log, className = "dark", curDragNodes, autoExpandNode;
		function beforeDrag(treeId, treeNodes) {
			className = (className === "dark" ? "":"dark");
			showLog("[ "+getTime()+" beforeDrag ]&nbsp;&nbsp;&nbsp;&nbsp; drag: " + treeNodes.length + " nodes." );
			for (var i=0,l=treeNodes.length; i<l; i++) {
				if (treeNodes[i].drag === false) {
					curDragNodes = null;
					return false;
				} else if (treeNodes[i].parentTId && treeNodes[i].getParentNode().childDrag === false) {
					curDragNodes = null;
					return false;
				}
			}
			curDragNodes = treeNodes;
			return true;
		}
		function beforeDragOpen(treeId, treeNode) {
			autoExpandNode = treeNode;
			return true;
		}
		function beforeDrop(treeId, treeNodes, targetNode, moveType, isCopy) {
			className = (className === "dark" ? "":"dark");
			showLog("[ "+getTime()+" beforeDrop ]&nbsp;&nbsp;&nbsp;&nbsp; moveType:" + moveType);
			showLog("target: " + (targetNode ? targetNode.name : "root") + "  -- is "+ (isCopy==null? "cancel" : isCopy ? "copy" : "move"));
			return true;
		}
		function onDrag(event, treeId, treeNodes) {
			className = (className === "dark" ? "":"dark");
			showLog("[ "+getTime()+" onDrag ]&nbsp;&nbsp;&nbsp;&nbsp; drag: " + treeNodes.length + " nodes." );
		}
		function onDrop(event, treeId, treeNodes, targetNode, moveType, isCopy) {
			className = (className === "dark" ? "":"dark");
			showLog("[ "+getTime()+" onDrop ]&nbsp;&nbsp;&nbsp;&nbsp; moveType:" + moveType);
			showLog("target: " + (targetNode ? targetNode.name : "root") + "  -- is "+ (isCopy==null? "cancel" : isCopy ? "copy" : "move"))
		}
		function onExpand(event, treeId, treeNode) {
			if (treeNode === autoExpandNode) {
				className = (className === "dark" ? "":"dark");
				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 setTrigger() {
			var zTree = $.fn.zTree.getZTreeObj("treeDemo");
			zTree.setting.edit.drag.autoExpandTrigger = $("#callbackTrigger").attr("checked");
		}
		
		$(document).ready(function(){
			$.fn.zTree.init($("#treeDemo"), setting, zNodes);
			$("#callbackTrigger").bind("change", {}, setTrigger);
		});
		//-->
	</SCRIPT>
</HEAD>

<BODY>
<h1>拖拽节点高级控制</h1>
<h6>[ 文件路径: exedit/drag_super.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、beforeDrag / onDrag<br/>&nbsp;&nbsp;beforeDrop / onDrop 事件回调函数控制</h2>
				<ul class="list">
				<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>
				<li>此 Demo 默认 允许复制 / 移动</li>
				<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>
				<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/>
					&nbsp;&nbsp;&nbsp;&nbsp;<input type="checkbox" id="callbackTrigger" checked /> 拖拽节点时自动展开父节点是否触发 callback<br/>
					drag / drop 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>同 "拖拽 节点 基本控制"</li>
				</ul>
			</li>
			<li class="title"><h2>3、treeNode 节点数据说明</h2>
				<ul class="list">
				<li>同 "拖拽 节点 基本控制"</li>
				</ul>
			</li>
		</ul>
	</div>
</div>
</BODY>
</HTML>