Add spinner to the 'managed user import' overlay

chrome/browser/resources/options/managed_user_import.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.
 
 cr.define('options', function() {
   var OptionsPage = options.OptionsPage;
   var ArrayDataModel = cr.ui.ArrayDataModel;
 
   /**
    * ManagedUserImportOverlay class.
@@ skipping 35 matching lines @@
 
       managedUserList.addEventListener('change', function(event) {
         var managedUser = managedUserList.selectedItem;
         if (!managedUser)
           return;
 
         $('managed-user-import-ok').disabled =
             managedUserList.selectedItem.onCurrentDevice;
       });
 
+      var self = this;
       $('managed-user-import-cancel').onclick = function(event) {
         OptionsPage.closeOverlay();
+        self.updateImportInProgress_(false);
+
         // 'cancelCreateProfile' is handled by BrowserOptionsHandler.
         chrome.send('cancelCreateProfile');
       };
 
       $('managed-user-import-ok').onclick =
           this.showAvatarGridOrSubmit_.bind(this);
 
       $('create-new-user-link').onclick = function(event) {
         OptionsPage.closeOverlay();
         OptionsPage.navigateToPage('createProfile');
       };
     },
 
     /**
      * @override
      */
     didShowPage: function() {
       chrome.send('requestExistingManagedUsers');
+
+      this.updateImportInProgress_(false);
       $('managed-user-import-error-bubble').hidden = true;
       $('managed-user-import-ok').disabled = true;
       $('select-avatar-grid').hidden = true;
       $('managed-user-list').hidden = false;
 
       $('managed-user-import-ok').textContent =
           loadTimeData.getString('managedUserImportOk');
       $('managed-user-import-text').textContent =
           loadTimeData.getString('managedUserImportText');
       $('managed-user-import-title').textContent =
@@ skipping 13 matching lines @@
       if (!managedUser)
         return;
 
       $('managed-user-import-error-bubble').hidden = true;
 
       if ($('select-avatar-grid').hidden && managedUser.needAvatar) {
         this.showAvatarGridHelper_();
         return;
       }
 
-      $('managed-user-import-ok').disabled = true;
       var avatarUrl = managedUser.needAvatar ?
           $('select-avatar-grid').selectedItem : managedUser.iconURL;
 
+      this.updateImportInProgress_(true);
+
       // 'createProfile' is handled by BrowserOptionsHandler.
       chrome.send('createProfile', [managedUser.name, avatarUrl,
                                     false, true, managedUser.id]);
     },
 
     /**
      * Hides the 'managed user list' and shows the avatar grid instead.
      * It also updates the overlay text and title to instruct the user
      * to choose an avatar for the supervised user.
      * @private
      */
     showAvatarGridHelper_: function() {
       $('managed-user-list').hidden = true;
       $('select-avatar-grid').hidden = false;
       $('select-avatar-grid').redraw();
       $('select-avatar-grid').selectedItem =
           loadTimeData.getValue('avatarIcons')[0];
 
       $('managed-user-import-ok').textContent =
           loadTimeData.getString('managedUserSelectAvatarOk');
       $('managed-user-import-text').textContent =
           loadTimeData.getString('managedUserSelectAvatarText');
       $('managed-user-import-title').textContent =
           loadTimeData.getString('managedUserSelectAvatarTitle');
     },
 
     /**
+     * Updates the UI according to the importing state.
+     * @param {boolean} inProgress True to indicate that
+     *     importing is in progress and false otherwise.
+     * @private
+     */
+    updateImportInProgress_: function(inProgress) {
+      $('managed-user-import-ok').disabled = inProgress;
+      $('managed-user-list').disabled = inProgress;
+      $('select-avatar-grid').disabled = inProgress;
+      $('create-new-user-link').disabled = inProgress;
+      $('managed-user-import-throbber').hidden = !inProgress;
+    },
+
+    /**
      * Adds all the existing |managedUsers| to the list.
      * @param {Array.<Object>} managedUsers An array of managed user objects.
      *     Each object is of the form:
      *       managedUser = {
      *         id: "Managed User ID",
      *         name: "Managed User Name",
      *         iconURL: "chrome://path/to/icon/image",
      *         onCurrentDevice: true or false,
      *         needAvatar: true or false
      *       }
@@ skipping 13 matching lines @@
      * Displays an error message if an error occurs while
      * importing a managed user.
      * Called by BrowserOptions via the BrowserOptionsHandler.
      * @param {string} error The error message to display.
      * @private
      */
     onError_: function(error) {
       var errorBubble = $('managed-user-import-error-bubble');
       errorBubble.hidden = false;
       errorBubble.textContent = error;
+      this.updateImportInProgress_(false);
     },
 
     /**
      * Closes the overlay if importing the managed user was successful.
      * @private
      */
     onSuccess_: function() {
+      this.updateImportInProgress_(false);
       OptionsPage.closeOverlay();
     },
   };
 
   // Forward public APIs to private implementations.
   [
     'onError',
     'onSuccess',
     'receiveExistingManagedUsers',
   ].forEach(function(name) {
     ManagedUserImportOverlay[name] = function() {
       var instance = ManagedUserImportOverlay.getInstance();
       return instance[name + '_'].apply(instance, arguments);
     };
   });
 
   // Export
   return {
     ManagedUserImportOverlay: ManagedUserImportOverlay,
   };
 });