AngularJS dropdown directive hide when clicking outside

Question

I\'m trying to create a multiselect dropdown list with checkbox and filter option. I\'m trying to get the list hidden with I click outside but could not figure it out how. A

Answer 1

I realized it by listening for a global click event like so:

.directive('globalEvents', ['News', function(News) {
    // Used for global events
    return function(scope, element) {
        // Listens for a mouse click
        // Need to close drop down menus
        element.bind('click', function(e) {
            News.setClick(e.target);
        });
    }
}])

The event itself is then broadcasted via a News service

angular.factory('News', ['$rootScope', function($rootScope) {
    var news = {};
    news.setClick = function( target ) {
        this.clickTarget = target;
        $rootScope.$broadcast('click');
    };
}]);

You can then listen for the broadcast anywhere you need to. Here is an example directive:

.directive('dropdown', ['News', function(News) {
  // Drop down menu für the logo button
  return {
    restrict: 'E',
    scope: {},
    link: function(scope, element) {
      var opened = true;
      // Toggles the visibility of the drop down menu
      scope.toggle = function() {
        element.removeClass(opened ? 'closed' : 'opened');
        element.addClass(opened ? 'opened' : 'closed');
      };
      // Listens for the global click event broad-casted by the News service
      scope.$on('click', function() {
        if (element.find(News.clickTarget.tagName)[0] !== News.clickTarget) {
          scope.toggle(false);
        }
      });
      // Init
      scope.toggle();
    }
  }
}])

I hope it helps!