Publisher\Subscriber methods in the Controller

Controller.js

define(function() {

    	var events = {};
	var publishedEvents = {};
	
	var subscribe = function (subscriber, eventName) {
	
		//if new event then create an entry in the events map
		if(!events.hasOwnProperty(eventName)) {
			events[eventName] = [];
		}
	
		//add subscriber to the list
		events[eventName].push(subscriber);
	
		//event was already published but the module was not loaded
		if(publishedEvents.hasOwnProperty(eventName)) {
			$(subscriber.el).trigger(eventName,publishedEvents[eventName]);
		}
	
	};

	var publish = function (eventName, data, dontStoreData) {
	
		//if eventName exists then trigger the event to all subscribers
		if(events[eventName]) {
			for (var i=0; i<events[eventName].length; i++) {
				$(events[eventName][i].el).trigger(eventName, data);
			}
		} 
	
		if(!dontStoreData)
			publishedEvents[eventName] = data;
	};

	return {
		subscribe: subscribe,
		publish: publish		
	};

});