AngularJS递归指令实现Tree View效果示例

[
  {
   "id":"1",
   "pid":"0",
   "name":"家用电器",
   "children":[
     {
      "id":"4",
      "pid":"1",
      "name":"大家电"
     }
   ]
  },
  {
   ...
  }
  ...
]

angular.module('ng.demo', [])
.directive('treeView',[function(){
   return {
     restrict: 'E',
     templateUrl: '/treeView.html',
     scope: {
       treeData: '=',
       canChecked: '=',
       textField: '@',
       itemClicked: '&',
       itemCheckedChanged: '&',
       itemTemplateUrl: '@'
     },
     controller:['$scope', function($scope){
       $scope.itemExpended = function(item, $event){
         item.$$isExpend = ! item.$$isExpend;
         $event.stopPropagation();
       };
       $scope.getItemIcon = function(item){
         var isLeaf = $scope.isLeaf(item);
         if(isLeaf){
           return 'fa fa-leaf';
         }
         return item.$$isExpend ? 'fa fa-minus': 'fa fa-plus';
       };
       $scope.isLeaf = function(item){
        return !item.children || !item.children.length;
       };
       $scope.warpCallback = function(callback, item, $event){
         ($scope[callback] || angular.noop)({
           $item:item,
           $event:$event
         });
       };
     }]
   };
 }]);

<ul class="tree-view">
    <li ng-repeat="item in treeData" ng-include="'/treeItem.html'" ></li>
</ul>

<i ng-click="itemExpended(item, $event);" class=""></i>
<input type="checkbox" ng-model="item.$$isChecked" class="check-box" ng-if="canChecked" ng-change="warpCallback('itemCheckedChanged', item, $event)">
<span class='text-field' ng-click="warpCallback('itemClicked', item, $event);"></span>
<ul ng-if="!isLeaf(item)" ng-show="item.$$isExpend">
  <li ng-repeat="item in item.children" ng-include="'/treeItem.html'">
  </li>
</ul>