MagicMirror/modules/node_modules/node_helper/index.js

/* Magic Mirror
 * Node Helper Superclass
 *
 * By Michael Teeuw http://michaelteeuw.nl
 * MIT Licensed.
 */

var Class = require('../../../js/class.js');
var MMSocket = require('../../../js/socketclient.js');

NodeHelper = Class.extend({
	init: function() {
		console.log('Initializing new module helper ...');
	},

	start: function() {
		console.log('Staring module helper: ' + this.name);
	},

	/* socketNotificationReceived(notification, payload)
	 * This method is called when a socket notification arrives.
	 *
	 * argument notification string - The identifier of the noitication.
	 * argument payload mixed - The payload of the notification.
	 */
	socketNotificationReceived: function(notification, payload) {
		console.log(this.name + ' received a socket notification: ' + notification + ' - Payload: ' + payload);
	},

	/* setName(data)
	 * Set the module name.
	 *
	 * argument name string - Module name.
	 */
	setName: function(name) {
		this.name = name;
		this.socket();
	},

	/* socket()
	 * Returns a socket object. If it doesn't exsist, it's created.
	 * It also registers the notification callback.
	 */
	socket: function() {
		if (typeof this._socket === 'undefined') {
			this._socket = this._socket = new MMSocket(this.name);
		}

		var self = this;
		this._socket.setNotificationCallback(function(notification, payload) {
			self.socketNotificationReceived(notification, payload);
		});

		return this._socket;
	},

	/* sendSocketNotification(notification, payload)
	 * Send a socket notification to the node helper.
	 *
	 * argument notification string - The identifier of the noitication.
	 * argument payload mixed - The payload of the notification.
	 */
	sendSocketNotification: function(notification, payload) {
		this.socket().sendNotification(notification, payload);
	}
});

NodeHelper.create = function(moduleDefinition) {
	return NodeHelper.extend(moduleDefinition);
};

module.exports = NodeHelper;