28zTree - 拖拽节点高级控制
2023-09-11 14:15:41 时间
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>
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