| 'use strict'; | 
|   | 
| var inherits = require('inherits') | 
|   , EventEmitter = require('events').EventEmitter | 
|   , XHRLocalObject = require('./transport/sender/xhr-local') | 
|   , InfoAjax = require('./info-ajax') | 
|   ; | 
|   | 
| function InfoReceiverIframe(transUrl) { | 
|   var self = this; | 
|   EventEmitter.call(this); | 
|   | 
|   this.ir = new InfoAjax(transUrl, XHRLocalObject); | 
|   this.ir.once('finish', function(info, rtt) { | 
|     self.ir = null; | 
|     self.emit('message', JSON.stringify([info, rtt])); | 
|   }); | 
| } | 
|   | 
| inherits(InfoReceiverIframe, EventEmitter); | 
|   | 
| InfoReceiverIframe.transportName = 'iframe-info-receiver'; | 
|   | 
| InfoReceiverIframe.prototype.close = function() { | 
|   if (this.ir) { | 
|     this.ir.close(); | 
|     this.ir = null; | 
|   } | 
|   this.removeAllListeners(); | 
| }; | 
|   | 
| module.exports = InfoReceiverIframe; |