Options2: Pull the trigger.

chrome/browser/resources/options2/chromeos/accounts_options.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.
+
+cr.define('options', function() {
+  var OptionsPage = options.OptionsPage;
+
+  /////////////////////////////////////////////////////////////////////////////
+  // AccountsOptions class:
+
+  /**
+   * Encapsulated handling of ChromeOS accounts options page.
+   * @constructor
+   */
+  function AccountsOptions(model) {
+    OptionsPage.call(this, 'accounts', templateData.accountsPageTabTitle,
+                     'accountsPage');
+    // Whether to show the whitelist.
+    this.showWhitelist_ = false;
+  }
+
+  cr.addSingletonGetter(AccountsOptions);
+
+  AccountsOptions.prototype = {
+    // Inherit AccountsOptions from OptionsPage.
+    __proto__: OptionsPage.prototype,
+
+    /**
+     * Initializes AccountsOptions page.
+     */
+    initializePage: function() {
+      // Call base class implementation to starts preference initialization.
+      OptionsPage.prototype.initializePage.call(this);
+
+      // Set up accounts page.
+      var userList = $('userList');
+      userList.addEventListener('remove', this.handleRemoveUser_);
+
+      var userNameEdit = $('userNameEdit');
+      options.accounts.UserNameEdit.decorate(userNameEdit);
+      userNameEdit.addEventListener('add', this.handleAddUser_);
+
+      // If the current user is not the owner, show some warning,
+      // and do not show the user list.
+      this.showWhitelist_ = AccountsOptions.currentUserIsOwner();
+      if (this.showWhitelist_) {
+        options.accounts.UserList.decorate(userList);
+      } else {
+        if (!AccountsOptions.whitelistIsManaged()) {
+          $('ownerOnlyWarning').hidden = false;
+        } else {
+          this.managed = true;
+        }
+      }
+
+      this.addEventListener('visibleChange', this.handleVisibleChange_);
+
+      $('useWhitelistCheck').addEventListener('change',
+          this.handleUseWhitelistCheckChange_.bind(this));
+
+      Preferences.getInstance().addEventListener(
+          $('useWhitelistCheck').pref,
+          this.handleUseWhitelistPrefChange_.bind(this));
+    },
+
+    /**
+     * Update user list control state.
+     * @private
+     */
+    updateControls_: function() {
+      $('userList').disabled =
+      $('userNameEdit').disabled = !this.showWhitelist_ ||
+                                   AccountsOptions.whitelistIsManaged() ||
+                                   !$('useWhitelistCheck').checked;
+    },
+
+    /**
+     * Handler for OptionsPage's visible property change event.
+     * @private
+     * @param {Event} e Property change event.
+     */
+    handleVisibleChange_: function(e) {
+      if (this.visible) {
+        this.updateControls_();
+        if (this.showWhitelist_)
+          $('userList').redraw();
+      }
+    },
+
+    /**
+     * Handler for allow guest check change.
+     * @private
+     */
+    handleUseWhitelistCheckChange_: function(e) {
+      // Whitelist existing users when guest login is being disabled.
+      if ($('useWhitelistCheck').checked) {
+        chrome.send('whitelistExistingUsers', []);
+      }
+
+      this.updateControls_();
+    },
+
+    /**
+     * handler for allow guest pref change.
+     * @private
+     */
+    handleUseWhitelistPrefChange_: function(e) {
+      this.updateControls_();
+    },
+
+    /**
+     * Handler for "add" event fired from userNameEdit.
+     * @private
+     * @param {Event} e Add event fired from userNameEdit.
+     */
+    handleAddUser_: function(e) {
+      chrome.send('whitelistUser', [e.user.email, e.user.name]);
+    },
+
+    /**
+     * Handler for "remove" event fired from userList.
+     * @private
+     * @param {Event} e Remove event fired from userList.
+     */
+    handleRemoveUser_: function(e) {
+      chrome.send('unwhitelistUser', [e.user.username]);
+    }
+  };
+
+  /**
+   * Returns whether the current user is owner or not.
+   */
+  AccountsOptions.currentUserIsOwner = function() {
+    return localStrings.getString('current_user_is_owner') == 'true';
+  };
+
+  /**
+   * Returns whether we're currently in guest mode.
+   */
+  AccountsOptions.loggedInAsGuest = function() {
+    return localStrings.getString('logged_in_as_guest') == 'true';
+  };
+
+  /**
+   * Returns whether the whitelist is managed by policy or not.
+   */
+  AccountsOptions.whitelistIsManaged = function() {
+    return localStrings.getString('whitelist_is_managed') == 'true';
+  };
+
+  /**
+   * Update account picture.
+   * @param {string} username User for which to update the image.
+   */
+  AccountsOptions.updateAccountPicture = function(username) {
+    if (this.showWhitelist_)
+      $('userList').updateAccountPicture(username);
+  };
+
+  // Export
+  return {
+    AccountsOptions: AccountsOptions
+  };
+
+});