效果图：
代码：
<!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.js"></script> <script type="text/javascript" src="../../../js/jquery.ztree.excheck.js"></script> <script type="text/javascript" src="../../../js/jquery.ztree.exedit.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 ] 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 ] 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 ] drag: " + treeNodes.length + " nodes." ); } function onDrop(event, treeId, treeNodes, targetNode, moveType, isCopy) { className = (className === "dark" ? "":"dark"); showLog("[ "+getTime()+" onDrop ] 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 ] " + 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/> 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/> <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>
