Delete and recreate the client plugin if WCS is reloaded.

remoting/webapp/wcs_sandbox_container.js

 /* Copyright 2013 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /**
  * @fileoverview
  * The application side of the application/sandbox WCS interface, used by the
  * application to exchange messages with the sandbox.
  */
 
 'use strict';
 
 /** @suppress {duplicate} */
 var remoting = remoting || {};
 
 /**
  * @param {Window} sandbox The Javascript Window object representing the
  *     sandboxed WCS driver.
  * @constructor
  */
 remoting.WcsSandboxContainer = function(sandbox) {
   this.sandbox_ = sandbox;
   /** @type {?function(string):void} */
-  this.onReady_ = null;
+  this.onLocalJid_ = null;
   /** @type {?function(remoting.Error):void} */
   this.onError_ = null;
   /** @type {?function(string):void} */
   this.onIq_ = null;
   /** @type {Object.<number, XMLHttpRequest>} */
   this.pendingXhrs_ = {};
 
   window.addEventListener('message', this.onMessage_.bind(this), false);
 };
 
 /**
- * @param {?function(string):void} onReady Callback invoked with the client JID
- *     when the WCS code has loaded.
+ * @param {?function(string):void} onLocalJid Callback invoked with the client
+ *     JID when the WCS code has loaded. Note that this may be called more than
+ *     once (potentially with a different JID) if the WCS node is reloaded for
+ *     any reason.
  * @return {void} Nothing.
  */
-remoting.WcsSandboxContainer.prototype.setOnReady = function(onReady) {
-  this.onReady_ = onReady;
+remoting.WcsSandboxContainer.prototype.setOnLocalJid = function(onLocalJid) {
+  this.onLocalJid_ = onLocalJid;
 };
 
 /**
  * @param {?function(remoting.Error):void} onError Callback invoked if the WCS
  *     code cannot be loaded.
  * @return {void} Nothing.
  */
 remoting.WcsSandboxContainer.prototype.setOnError = function(onError) {
   this.onError_ = onError;
 };
@@ skipping 32 matching lines @@
 };
 
 /**
  * Event handler to process messages from the sandbox.
  *
  * @param {Event} event
  */
 remoting.WcsSandboxContainer.prototype.onMessage_ = function(event) {
   switch (event.data['command']) {
 
-    case 'onReady':
+    case 'onLocalJid':
       /** @type {string} */
       var clientJid = event.data['clientJid'];
       if (clientJid === undefined) {
         console.error('onReady: missing client JID');
         break;
       }
-      if (this.onReady_) {
-        this.onReady_(clientJid);
+      if (this.onLocalJid_) {
+        this.onLocalJid_(clientJid);
       }
       break;
 
     case 'onError':
       /** @type {remoting.Error} */
       var error = event.data['error'];
       if (error === undefined) {
         console.error('onError: missing error code');
         break;
       }
@@ skipping 121 matching lines @@
     'xhr': sanitizeXhr_(xhr)
   };
   this.sandbox_.postMessage(message, '*');
   if (xhr.readyState == 4) {
     delete this.pendingXhrs_[id];
   }
 }
 
 /** @type {remoting.WcsSandboxContainer} */
 remoting.wcsSandbox = null;