ChromeOS: user whitelist check should happen before entering password.

chrome/browser/resources/chromeos/login/screen_gaia_signin.js

 // Copyright (c) 2012 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 Oobe signin screen implementation.
  */
 
 login.createScreen('GaiaSigninScreen', 'gaia-signin', function() {
   // Gaia loading time after which error message must be displayed and
@@ skipping 152 matching lines @@
       this.gaiaAuthHost_.samlApiUsedCallback =
           this.samlApiUsed_.bind(this);
       this.gaiaAuthHost_.addEventListener('authDomainChange',
           this.onAuthDomainChange_.bind(this));
       this.gaiaAuthHost_.addEventListener('authFlowChange',
           this.onAuthFlowChange_.bind(this));
       this.gaiaAuthHost_.addEventListener('authCompleted',
           this.onAuthCompletedMessage_.bind(this));
       this.gaiaAuthHost_.addEventListener('loadAbort',
         this.onLoadAbortMessage_.bind(this));
+      this.gaiaAuthHost_.addEventListener(
+          'identifierEntered', this.onIdentifierEnteredMessage_.bind(this));
 
       $('enterprise-info-hint-link').addEventListener('click', function(e) {
         chrome.send('launchHelpApp', [HELP_TOPIC_ENTERPRISE_REPORTING]);
         e.preventDefault();
       });
 
       $('back-button-item').addEventListener('click', function(e) {
         $('back-button-item').hidden = true;
         $('signin-frame').back();
         e.preventDefault();
@@ skipping 581 matching lines @@
     /**
      * Invoked when onLoadAbort message received.
      * @param {!Object} e Payload of the received HTML5 message.
      * @private
      */
     onLoadAbortMessage_: function(e) {
       this.onWebviewError(e.detail);
     },
 
     /**
+     * Invoked when identifierEntered message received.
+     * @param {!Object} e Payload of the received HTML5 message.
+     * @private
+     */
+    onIdentifierEnteredMessage_: function(e) {
+      this.onIdentifierEntered(e.detail);
+    },
+
+    /**
      * Clears input fields and switches to input mode.
      * @param {boolean} takeFocus True to take focus.
      * @param {boolean} forceOnline Whether online sign-in should be forced.
      * If |forceOnline| is false previously used sign-in type will be used.
      */
     reset: function(takeFocus, forceOnline) {
       // Reload and show the sign-in UI if needed.
       if (takeFocus) {
         if (!forceOnline && this.isLocal) {
           // Show 'Cancel' button to allow user to return to the main screen
@@ skipping 114 matching lines @@
      * Handler for webview error handling.
      * @param {!Object} data Additional information about error event like:
      * {string} error Error code such as "ERR_INTERNET_DISCONNECTED".
      * {string} url The URL that failed to load.
      */
     onWebviewError: function(data) {
       chrome.send('webviewLoadAborted', [data.error]);
     },
 
     /**
+     * Handler for identifierEntered event.
+     * @param {!Object} data The identifier entered by user:
+     * {string} accountIdentifier User identifier.
+     */
+    onIdentifierEntered: function(data) {
+      chrome.send('identifierEntered', [data.accountIdentifier]);
+    },
+
+    /**
      * Sets welcome and enterpriseinfo strings for offline gaia.
      * Also sets callback and sends message whether we already have email and
      * should switch to the password screen with error.
      */
     loadOffline: function(params) {
       var offlineLogin = $('offline-gaia');
       var strings = params.localizedStrings;
       if ('stringEnterpriseInfo' in strings)
         offlineLogin.enterpriseInfo = strings['stringEnterpriseInfo'];
       if ('emailDomain' in params)
@@ skipping 16 matching lines @@
       }
 
       this.classList.toggle('whitelist-error', show);
       this.loading = !show;
 
       if (!show)
         Oobe.showSigninUI();
     }
   };
 });