Don't transition to in-session mode until the connection has been established.

remoting/webapp/me2mom/remoting.js

 // Copyright (c) 2011 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.
 
 var remoting = remoting || {};
 
 (function() {
 'use strict';
 
 window.addEventListener('blur', pluginLostFocus_, false);
@@ skipping 440 matching lines @@
     setClientStateMessage('Connecting as ' + remoting.username);
   } else if (state == remoting.ClientSession.State.INITIALIZING) {
     setClientStateMessage('Initializing connection');
   } else if (state == remoting.ClientSession.State.CONNECTED) {
     var split = remoting.hostJid.split('/');
     var host = null;
     if (split.length == 2) {
       host = split[0];
     }
     setClientStateMessage('Connected to', host);
+    setGlobalMode(remoting.AppMode.IN_SESSION);
     updateStatistics();
   } else if (state == remoting.ClientSession.State.CLOSED) {
     setClientStateMessage('Closed');
+    if (remoting.session.state != remoting.ClientSession.State.CONNECTED) {
+      showConnectError_(404);

[Jamie, 2011/07/25 23:09:50]

This is not quite correct, as it will report "Invalid access code", regardless
of what actually went wrong. I'd like to fix this up by having the host send a
suitable error code, but that's a separate CL.

[awong, 2011/07/26 18:51:27]

Add TODO?

[Jamie, 2011/07/26 19:02:35]

Done.

+    }
   } else if (state == remoting.ClientSession.State.CONNECTION_FAILED) {
     setClientStateMessage('Failed');
   } else {
     setClientStateMessage('Bad State: ' + state);
   }
 }
 
 function startSession_() {
   remoting.debug.log('Starting session...');
   remoting.username = getEmail();
-  setGlobalMode(remoting.AppMode.IN_SESSION);
   remoting.session =
       new remoting.ClientSession(remoting.hostJid, remoting.hostPublicKey,
                                  remoting.accessCode, getEmail(),
                                  onClientStateChange_);
   remoting.oauth2.callWithToken(function(token) {
     remoting.session.createPluginAndConnect(
         document.getElementById('session-mode'),
         token);
   });
 }
@@ skipping 147 matching lines @@
     remoting.session = null;
     remoting.debug.log('Disconnected.');
     remoting.setClientMode('unconnected');
     var accessCode = document.getElementById('access-code-entry');
     accessCode.value = '';
     setGlobalMode(remoting.AppMode.CLIENT);
   }
 }
 
 }());