• javascript入门 之 zTree(十三 移动/复制事件)


    <!DOCTYPE html>
    <HTML>
    <HEAD>
       <TITLE> ZTREE DEMO - copyNode / moveNode</TITLE>
       <meta http-equiv="content-type" content="text/html; charset=UTF-8">
       <script type="text/javascript" src="../js/jquery-3.3.1.js"></script>
       <link rel="stylesheet" href="../bower_components/ztree/css/zTreeStyle/demo.css" type="text/css">
       <link rel="stylesheet" href="../bower_components/ztree/css/zTreeStyle/zTreeStyle.css" type="text/css">
       <script type="text/javascript" src="../bower_components/ztree/js/jquery-1.4.4.min.js"></script>
       <script type="text/javascript" src="../bower_components/ztree/js/jquery.ztree.core-3.5.js"></script>
       <script type="text/javascript" src="../bower_components/ztree/js/jquery.ztree.excheck-3.5.js"></script>
       <script type="text/javascript" src="../bower_components/ztree/js/jquery.ztree.exedit-3.5.js"></script>
       <SCRIPT type="text/javascript">
          <!--
          var setting = {
             view: {
                selectedMulti: false
             },
             edit: {
                enable: true,
                showRemoveBtn: false,
                showRenameBtn: false
             },
             data: {
                simpleData: {
                   enable: true
                }
             },
             callback: {
                beforeClick: beforeClick
             }
          };
    
          var zNodes =[
             { id:1, pId:0, name:"父节点 1", open:true},
             { id:11, pId:1, name:"叶子节点 1-1"},
             { id:12, pId:1, name:"叶子节点 1-2"},
             { id:13, pId:1, name:"叶子节点 1-3"},
             { id:2, pId:0, name:"父节点 2", open:true},
             { id:21, pId:2, name:"叶子节点 2-1"},
             { id:22, pId:2, name:"叶子节点 2-2"},
             { id:23, pId:2, name:"叶子节点 2-3"},
             { id:3, pId:0, name:"父节点 3", open:true },
             { id:31, pId:3, name:"叶子节点 3-1"},
             { id:32, pId:3, name:"叶子节点 3-2"},
             { id:33, pId:3, name:"叶子节点 3-3"}
          ];
    
          function fontCss(treeNode) {
    
             var aObj = $("#" + treeNode.tId + "_a");
             aObj.removeClass("copy").removeClass("cut");
             if (treeNode === curSrcNode) {
                if (curType == "copy") {
                   aObj.addClass(curType);
                } else {
                   aObj.addClass(curType);
                }        
             }
          }
    
          function beforeClick(treeId, treeNode) {
              alert('你选择前点击了' + treeNode.name);
             return !treeNode.isCur;                                  //点剪切/复制以前,点击此结点isCur还未定义,所以强制返回true,点剪贴/复制以后返回false
          }
    
          var curSrcNode, curType;
          function setCurSrcNode(treeNode) {
             var zTree = $.fn.zTree.getZTreeObj("sys");
             if (curSrcNode) {                                   //当第一次处理()选中的结点时,curSrcNode还未定义,返回false,第二次处理()时,返回true
                delete curSrcNode.isCur;
                var tmpNode = curSrcNode;
                curSrcNode = null;                               //粘贴完第一个后,为了重复利用,需要清空curSrcNode,方便再次选择
                fontCss(tmpNode);
             }
             curSrcNode = treeNode;
             if (!treeNode) return;                               //如果不存在,退出该函数
    
             curSrcNode.isCur = true;
             zTree.cancelSelectedNode();                               //处理好后,取消选中的点
             fontCss(curSrcNode);
          }
          function copy(e) {
             var zTree = $.fn.zTree.getZTreeObj("sys"),
             nodes = zTree.getSelectedNodes();
             if (nodes.length == 0) {
                alert("请先选择一个节点");
                return;
             }
             curType = "copy";
             alert('你选择了' + nodes[0].name);
             setCurSrcNode(nodes[0]);
          }
          function cut(e) {
             var zTree = $.fn.zTree.getZTreeObj("sys"),
             nodes = zTree.getSelectedNodes();
             if (nodes.length == 0) {
                alert("请先选择一个节点");
                return;
             }
             curType = "cut";
             setCurSrcNode(nodes[0]);
          }
          function paste(e) {                                        //点击paste按扭时,判断curSrcNode是否定义
             if (!curSrcNode) {
    
                alert("请先选择一个节点进行 复制 / 剪切");
                return;
             }
    
             var zTree = $.fn.zTree.getZTreeObj("sys"),
             nodes = zTree.getSelectedNodes(),
             targetNode = nodes.length>0? nodes[0]:null;                   //如果选中多个,则只对第一个进行处理,如果为空,则定义为null
    
             alert(curSrcNode.parentTId);
    
             if (curSrcNode === targetNode) {                        //同输出
    
                alert("不能移动,源节点 与 目标节点相同");
                return;
    
             } else if (curType === "cut" && ((!!targetNode && curSrcNode.parentTId === targetNode.tId) || (!targetNode && !curSrcNode.parentTId))) {
                //当为cut的时候,一:1.目标结点存在 2.目标结点是选中的结点的父结点
                //               二: 1.目标结点 和 选中的结点的父结点 都是root(我也不知道昨说,这么说,你应该知道)
    
                alert("不能移动,源节点 已经存在于 目标节点中");
                return;
    
             } else if (curType === "copy") {
    
                targetNode = zTree.copyNode(targetNode, curSrcNode, "inner");                 //复制函数
    
             } else if (curType === "cut") {
    
                targetNode = zTree.moveNode(targetNode, curSrcNode, "inner");                 //剪贴函数
    
                if (!targetNode) {
    
                   alert("剪切失败,源节点是目标节点的父节点");
                }
                targetNode = curSrcNode;
             }
             setCurSrcNode();
             delete targetNode.isCur;
             zTree.selectNode(targetNode);
          }
          
          $(document).ready(function(){
             $.fn.zTree.init($("#sys"), setting, zNodes);
             $("#copy").bind("click", copy);
             $("#cut").bind("click", cut);
             $("#paste").bind("click", paste);
          });
          //-->
       </SCRIPT>
    
    </HEAD>
    
    <BODY>
    <div class="content_wrap">
       <div class="zTreeDemoBackground left">
          <ul id="sys" class="ztree"></ul>
       </div>
       <div class="right">
          [ <a id="copy" href="#" title="复制" οnclick="return false;">复制</a>
          [ <a id="cut" href="#" title="剪切" οnclick="return false;">剪切</a> ]
          [ <a id="paste" href="#" title="粘贴" οnclick="return false;">粘贴</a> ]
       </div>
    </div>
    </BODY>
    </HTML>
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  • 原文地址:https://www.cnblogs.com/viplanyue/p/12700641.html
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