在动态生成的DOM中添加Angular自定义指令？

Question

I am using a JavaScript library called "Treant.js" to dynamically generate a tree structure.

Because the DOM elements responsible for the tree structure are dynamically generated as SVG by the Treant.js library, I do not have direct access to those elements at all.

Here is what the HTML looks like

<div class="node nodeBranches>
    <p class="node-name>TEXT</p>
</div>

This block of codes gets added to the tree DOM whenever a new data is added via form.

Here is the code that I came up with in order to add "ng-class" directive to the div whose class is node.

var target = angular.element(".nodeBranches");
for (var i = 0; i < target.length; i++) {
    target.eq(i).attr("ng-class", "changeClass()");
}

Looking at the developer's tool in chrome, I see that the custom attribute "ng-class" is added to each div.node, but the functionality is not there.

The same thing happens for "ng-click" attribute as well. I can see the custom directive in the code, but it does not work.

How can I make this work using AngularJS?

Answer 1

By $compile . Document here .

And an example, help it works.

 angular.module('app', []) .controller('appCtrl', function($scope) { }) .directive('ngAddClass', function($compile) { return { restirct: 'AE', link: function(scope, ele, attrs) { scope.changeClass = function() { console.info('red'); return 'red'; } var target = angular.element(".nodeBranches"); for (var i = 0; i < target.length; i++) { target.eq(i).attr("ng-class", "changeClass()"); $compile(target)(scope); } } } }); 

 .red { color: red; } 

 <script src="//cdn.bootcss.com/jquery/2.0.0/jquery.js"></script> <script src="//cdn.bootcss.com/angular.js/1.4.7/angular.min.js"></script> <div ng-app="app"> <div ng-controller="appCtrl"> <div ng-add-class> <div class="node nodeBranches"> <p class=" node-name">TEXT</p> </div> </div> </div> </div>