Angularjs - 使用指令实例化其他指令？

Question

所以我可以在我的HTML中说我有这样的事情:

<tabcontent></tabcontent>

然后这个指令的javascript是这样的:

tabsApp.directive('tabcontent', function(){

  var myObj = {
    priority:0,
    template:'<div></div>',
    replace: true,
    controller: 'TabCtrl',
    transclude: false,
    restrict: 'E',
    scope: false,
    compile: function (element, attrs){
      return function (parentScope, instanceEle){
        parentScope.$watch('type', function(val) {
          element.html('<div '+val+'></div>');
        });
      }
      $compile(parentScope);
    },
    link: function postLink(scope, iElement, iAttrs){}
  };
  return myObj;

});

正确解析HTML,并在控制器JS中找到type的值.

so <tabcontent></tabcontent> is replaced with <div recipe></div> for example..

(那部分确实发生了)

所以我也有食谱指令:

tabsApp.directive('recipe', function(){

  var myObj = {
    priority:0,
    template:'<div>TESTING</div>',
    replace: true,
    controller: 'TabCtrl',
    transclude: false,
    restrict: 'E',
    scope: false,
    compile: function (element, attrs){
      return {
        pre: function preLink(scope, iElement, iAttrs, controller){},
        post: function postLink(scope, iElement, iAttrs, controller){}
      }
    },
    link: function postLink(scope, iElement, iAttrs){}
  };
  return myObj;

});

这显然非常简单,仅用于测试.但是配方指令没有被处理......

这里发生了什么？

Answer 1

你需要改变两件事:

1. 该recipe指令不得限于E(元素).如果要生成指令<div recipe></div>,则必须至少在指令配置上向属性添加A(属性)restrict:

   app.directive('recipe', function() {
      return {
         restrict: 'E',
         ...
   

2. 你需要tabcontent在'watch'之后编译指令的HTML内容:

   app.directive('tabcontent', function($compile){
      return {    
      ...    
      link: function (scope, iElement, iAttrs) {
               scope.$watch('type', function(val) {
                  iElement.html('<div '+val+'></div>');           
                  $compile(iElement.contents())(scope);         
                });
            }
      ...        
   

jsFiddle:http://jsfiddle.net/bmleite/n2BXp/