ztree-可拖拽可编辑的树

Posted 2020-11-21 excellencesy
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<!DOCTYPE html>
<HTML>
<HEAD>
    <TITLE> ZTREE DEMO - addNodes / editName / removeNode / removeChildNodes</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 = {
            view: {
                selectedMulti: false
            },
            edit: {
                drag: {
                    autoExpandTrigger: true,
                    prev: dropPrev,
                    inner: dropInner,
                    next: dropNext
                },
                enable: true,
                showRemoveBtn: false,
                showRenameBtn: false
            },
            data: {
                keep: {
                    parent:true,
                    leaf:true
                },
                simpleData: {
                    enable: true
                }
            },
            callback: {
                beforeDrag: beforeDrag,
                beforeRemove: beforeRemove,
                beforeRename: beforeRename,
                onRemove: onRemove,
                beforeDrop: beforeDrop,
                beforeDragOpen: beforeDragOpen,
                onDrag: onDrag,
                onDrop: onDrop,
                onExpand: onExpand
            }
        };        
        
        var zNodes =[
            { id:1, pId:0, name:"节点1", open:false},
            { id:11, pId:1, name:"节点1-1"},
            { id:12, pId:1, name:"节点1-2"},
            { id:121, pId:12, name:"节点1-2-1"},
            { id:122, pId:12, name:"节点1-2-2"},
            { id:123, pId:12, name:"节点1-2-3"},        
            { id:3, pId:0, name:"节点3", open:false},
            { id:31, pId:3, name:"节点3-1"},
            { id:32, pId:3, name:"节点3-2"},
            { id:33, pId:3, name:"节点3-3"}
        ];
        
        var log, className = "dark";
        function beforeDrag(treeId, treeNodes) {
            return false;
        }
        function beforeRemove(treeId, treeNode) {
            className = (className === "dark" ? "":"dark");
            showLog("[ "+getTime()+" beforeRemove ] " + treeNode.name);
            console.log()
            var children = treeNode.children;
            if(children!=undefined && children.length>0){
                alert("请先删除子节点");
                return false;
            }
            return confirm("确认删除 节点 -- " + treeNode.name + " 吗？");
        }
        function onRemove(e, treeId, treeNode) {
            showLog("[ "+getTime()+" onRemove ] " + treeNode.name);
        }
        function beforeRename(treeId, treeNode, newName) {
            if (newName.length == 0) {
                alert("节点名称不能为空.");
                var zTree = $.fn.zTree.getZTreeObj("treeDemo");
                setTimeout(function(){zTree.editName(treeNode)}, 10);
                return false;
            }
            return true;
        }
        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);
        }

        var newCount = 1;
        function add(e) {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
            isParent = e.data.isParent,
            nodes = zTree.getSelectedNodes(),
            treeNode = nodes[0];
            if (treeNode) {alert(1)
                treeNode = zTree.addNodes(treeNode, {id:(100 + newCount), pId:treeNode.id, isParent:isParent, name:"new node" + (newCount++)});
            } else {alert(2)
                treeNode = zTree.addNodes(null, {id:(100 + newCount), pId:0, isParent:isParent, name:"new node" + (newCount++)});
            }
            if (treeNode) {alert(3)
                zTree.editName(treeNode[0]);
            } else {alert(4)
                alert("叶子节点被锁定，无法增加子节点");
            }
        };
        
        function addParent(e) {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
            isParent = e.data.isParent,
            nodes = zTree.getSelectedNodes(),
            treeNode = nodes[0];        
            treeNode = zTree.addNodes(null, {id:(100 + newCount), pId:0, isParent:isParent, name:"new node" + (newCount++)});
            zTree.editName(treeNode[0]); 
        };
        function edit() {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
            nodes = zTree.getSelectedNodes(),
            treeNode = nodes[0];
            if (nodes.length == 0) {
                alert("请先选择一个节点");
                return;
            }
            zTree.editName(treeNode);
        };
        function remove(e) {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
            nodes = zTree.getSelectedNodes(),
            treeNode = nodes[0];
            if (nodes.length == 0) {
                alert("请先选择一个节点");
                return;
            }
            var callbackFlag = $("#callbackTrigger").attr("checked");
            zTree.removeNode(treeNode, callbackFlag);
        };
        function clearChildren(e) {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
            nodes = zTree.getSelectedNodes(),
            treeNode = nodes[0];
            if (nodes.length == 0 || !nodes[0].isParent) {
                alert("请先选择一个父节点");
                return;
            }
            zTree.removeChildNodes(treeNode);
        };
        
        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");            
            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");            
            return true;
        }
        function onDrag(event, treeId, treeNodes) {
            console.log("拖拽节点")
            className = (className === "dark" ? "":"dark");
            
        }
        function onDrop(event, treeId, treeNodes, targetNode, moveType, isCopy) {
            className = (className === "dark" ? "":"dark");
            
        }
        function onExpand(event, treeId, treeNode) {
            if (treeNode === autoExpandNode) {
                className = (className === "dark" ? "":"dark");
                
            }
        }
        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);
            $("#addParent").bind("click", {isParent:true}, addParent);
            $("#addLeaf").bind("click", {isParent:false}, add);
            $("#edit").bind("click", edit);
            $("#remove").bind("click", remove);
            $("#clearChildren").bind("click", clearChildren);
            $("#callbackTrigger").bind("change", {}, setTrigger);
        });
    </SCRIPT>
</HEAD>
<BODY>
<div class="content_wrap">
    <div>
        <input type="checkbox" id="callbackTrigger" checked /> removeNode 方法是否触发 callback<br/>
        [ <a id="addParent" href="#" title="增加父节点" onclick="return false;">增加父节点</a> ]
        [ <a id="addLeaf" href="#" title="增加叶子节点" onclick="return false;">增加叶子节点</a> ]
        [ <a id="edit" href="#" title="编辑名称" onclick="return false;">编辑名称</a> ]<br/>
        [ <a id="remove" href="#" title="删除节点" onclick="return false;">删除节点</a> ]
        [ <a id="clearChildren" href="#" title="清空子节点" onclick="return false;">清空子节点</a> ]<br/>    
    </div>
    <div class="zTreeDemoBackground left">
        <ul id="treeDemo" class="ztree"></ul>
    </div>    
</div>
</BODY>
</HTML>
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