树右键菜单

参考示例：树右键菜单

一：创建ContextMenu

<ul id="treeMenu" class="mini-contextmenu"  onbeforeopen="onBeforeOpen">        
    <li iconCls="icon-move" onclick="onMoveNode">移动节点</li>
    <li class="separator"></li>
    <li>
        <span iconCls="icon-add">新增节点</span>
        <ul>
            <li onclick="onAddBefore">插入节点前</li>                
            <li onclick="onAddAfter">插入节点后</li>    
            <li onclick="onAddNode">插入子节点</li>                 
        </ul>
    </li>
    <li name="edit" iconCls="icon-edit" onclick="onEditNode">编辑节点</li>
    <li name="remove" iconCls="icon-remove" onclick="onRemoveNode">删除节点</li>        
</ul>

二：设置contextmenu

<ul id="tree1" class="mini-tree" url="../data/tree.txt" style="width:200px;padding:5px;" 
    showTreeIcon="true" textField="text" idField="id" 
    contextMenu="#treeMenu"
    >        
</ul>

三：监听beforeopen事件

function onBeforeOpen(e) {
    var menu = e.sender;
    var tree = mini.get("tree1");

    var node = tree.getSelectedNode();
    if (!node) {
        e.cancel = true;
    }
    if (node && node.text == "Base") {
        e.cancel = true;
        //阻止浏览器默认右键菜单
        e.htmlEvent.preventDefault();
        return;
    }

    ////////////////////////////////
    var editItem = mini.getbyName("edit", menu);
    var removeItem = mini.getbyName("remove", menu);
    editItem.show();
    removeItem.enable();

    if (node.id == "forms") {
        editItem.hide();
    }
    if (node.id == "lists") {
        removeItem.disable();
    }
}