barrageapi/ServerMessage.js

A library for sending data to Barrage, an advanced streaming analytics service from MIOsoft

var eventHandlers = {};


module.exports = exports = {
	broadcast : function (eventName, eventData) {
		var eventListeners = eventHandlers[eventName];
		if (eventListeners) {
			for (var i = 0; i < eventListeners.length; i++) {
				eventListeners[i](eventData);
			}
		}
	},

	addEventListener : function (eventName, callback) {
		if (Object.prototype.toString.call(callback) !== '[object Function]') { throw new TypeError("Callback was not of type function"); }
		var eventListeners = eventHandlers[eventName];
		if (!eventListeners) { eventListeners = []; }
		if (eventListeners.indexOf(callback) === -1) {
			eventListeners.push(callback);
		}
		eventHandlers[eventName] = eventListeners;
	},

	removeEventListener : function (eventName, callback) {
		var eventListeners = eventHandlers[eventName];
		if (eventListeners) {
			for (var i = 0; i < eventListeners.length; i++) {
				if (eventListeners[i] === callback) {
					eventListeners.splice(i, 1);
					break;
				}
			}
		}
	}
};