text: app.directive('ngEnter', function () {
      return function (scope, element, attrs) {
          element.bind("keydown keypress", function (event) {
              if(event.which === 13) {
                  scope.$apply(function (){
                      scope.$eval(attrs.ngEnter);
                  });
  
                  event.preventDefault();
              }
          });
      };
  });