Wrapper of socket.io-client for Sencha Touch/ExtJS.

socket.io.js

/**
 * Usage:
 *   var socket = Ext.create('MyApp.data.SocketIO', {
 *     host: 'localhost',
 *     port: 80
 *   });
 *
 * License: The MIT License
 * Copyright (c) 2013 ClearCode Inc. / YUKI "Piro" Hiroshi
 */
Ext.define('MyApp.data.SocketIO', {
  constructor: function(config){
    var me = this;
    me.superclass.constructor.call(me);

    me.self._sockets = me.self._sockets || {};

    var key = config.host + ':' + config.port;
    if (!me.self._sockets[key]) {
      me.self._sockets[key] = me.connect(config);        
    }
    me._socket = me.self._sockets[key];
  },

  connect: function(config) {
    return io.connect(config.host, {
      port: config.port,
      path: config.path,
      reconnection: config.reconnection,
      reconnectionAttempts: config.reconnectionAttempts,
      reconnectionDelay: config.reconnectionDelay,
      reconnectionDelayMax: config.reconnectionDelayMax,
      timeout: config.timeout
    });
  },

  on: function() {
    return this._socket.on.apply(this._socket, arguments);
  },
  removeListener: function() {
    return this._socket.removeListener.apply(this._socket, arguments);
  },
  removeAllListener: function() {
    return this._socket.removeAllListener.apply(this._socket, arguments);
  },
  emit: function() {
    return this._socket.emit.apply(this._socket, arguments);
  }
});