我們可以使用$ sce.trustAsHtml（string）out of「filter」嗎？

Question

HTML：

<div ng-app="app"> 
    <test-d class="my-class">this should be replaced</test-d> 
</div> 

JS：

angular.module('app', []).directive('testD', ['$compile','$sce', function($compile, $sce) { 
     return { 
      restrict: 'E', 
      link: function(scope, element, attrs, controller) { 

       //"case 1" 
       //var testElement = angular.element('<div class="{{testClass}}"><div ng-repeat="item in items">{{item.n}}.{{item.label}}</div></div>'); 

       //"case 2" 
       var testElement = angular.element('<div class="{{testClass}}"><div ng-repeat="item in items">{{item.n}}<div class="how-to-remove-this-div" ng-bind-html="item.label|htmlize"></div></div></div>'); 

       scope.testClass = attrs.class; 

       scope.items = [ 
        //{n:10,label:$sce.trustAsHtml('<span class="with-icon">label 11</span>')}, 
        // "case 1" of "testElement": no any effects (with "case 1" that would be preferred) 
        // "case 2" of "testElement": Error: [$sce:itype] Attempted to trust a non-string value in a content requiring a string: Context: html 

        {n:20,label:'<span class="with-icon">label 22</span>'}, 
        {n:30,label:'<span class="with-icon">label 33</span>'} 
       ]; 

       var testElementCompiled = $compile(testElement)(scope); 

       //"case 3" 
       element.replaceWith(testElementCompiled); 

       //"case 4" 
       //element.replaceWith($sce.trustAsHtml(testElementCompiled)); 
      } 
     } 
}]).filter('htmlize', ['$sce', function($sce){ 
     return function(val) { 
      return $sce.trustAsHtml(val); 
     }; 
}]); 

的jsfiddle： http://jsfiddle.net/isnigirev/c2wRq/

問題： 1）是有可能使用trustAsHtml了過濾器上下文？ 2）如果不使用「ng-bind-html」指令的話，如何擺脫「how-to-remove-this-div」類的div？

Answer 1

明白了（trustAsHtml）在指令here中工作。當我錯誤地嘗試在相同的「標籤」上調用trustAsHtml兩次時，發生了"Error: [$sce:itype] Attempted to trust a non-string value in a content requiring a string: Context: html"錯誤。

問題的第二部分仍然存在，但我會用一些解決方法解決它。無論如何，解決它也很有趣。

Answer 2

文章是顯示

<div ng-app="app"> 
<span data-ng-bind-html="article| to_trusted"></span> 
</div> 

文字和過濾器爲：

app.filter('to_trusted', ['$sce', function($sce){ 
     return function(text) { 
      return $sce.trustAsHtml(text); 
     }; 
    }]);