AngularJS Confirming ng-click

var app = angular.module('plunker', []);

app.controller('ParentCtrl', function($scope) {
    $scope.fooCalled = 0;
    $scope.foo = function() {
        $scope.fooCalled++;
    };
});

app.directive('ngConfirmClick', [
  function(){
    return {
      priority: 100,
      restrict: 'A',
      //terminal: true,
      link: function(scope, element, attrs){
        element.bind('click', function(e){
          var message = attrs.ngConfirmClick;
          if(message && !confirm(message)){
            e.stopImmediatePropagation();
            e.preventDefault();
          }
        });
      }
    }
  }
]);

<!doctype html>
<html ng-app="plunker" >
<head>
  <meta charset="utf-8">
  <title>AngularJS Plunker</title>
  <link rel="stylesheet" href="style.css">
  <script>document.write("<base href=\"" + document.location + "\" />");</script>
  <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.min.js"></script>
  <script src="app.js"></script>
</head>
<body>
  <div ng-controller="ParentCtrl">
     Foo Called: {{fooCalled}}<br/>
     <button ng-click="foo()" ng-confirm-click="again">Call From Parent</button><br/>
  </div>
</body>
</html>

/* Put your css in here */