Untitled

angular.module('angularDemo.messagingFactory', []).factory("messagingService", messagingService);

function messagingService($rootscope, $scope) {
  var factory = {};
  factory.events=[];
  var getEvent = function(eventName){
    return factory.events[eventName];
  };
  factory.on = function(eventName, callback) {
    var eventId = factory.getEventId();

  };

  factory.emit = function(eventName, data, callback) {
    factory.events.push({
      "eventName": eventName,
      "data", data,
      "callback": callback
    });
  };
  return factory;
}

messagingService.$inject = ['$rootscope', '$scope'];