Add application locale policy.

chrome/browser/chromeos/login/language_switch_menu.cc

 // Copyright (c) 2010 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.
 
 #include "chrome/browser/chromeos/login/language_switch_menu.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 70 matching lines @@
 void LanguageSwitchMenu::SetFirstLevelMenuWidth(int width) {
   DCHECK(menu_ != NULL);
   gtk_widget_set_size_request(menu_->GetNativeMenu(), width, -1);
 }
 
 // static
 void LanguageSwitchMenu::SwitchLanguage(const std::string& locale) {
   // Save new locale.
   DCHECK(g_browser_process);
   PrefService* prefs = g_browser_process->local_state();
-  prefs->SetString(prefs::kApplicationLocale, locale);
-  prefs->SavePersistentPrefs();
+  // TODO(markusheintz): If the preference is managed and can not be changed by
+  // the user, changing the language should be disabled in the UI.
+  // TODO(markusheintz): Change the if condition to prefs->IsUserModifiable()
+  // once Mattias landed his pending patch.
+  if (!prefs->IsManagedPreference(prefs::kApplicationLocale)) {
+    prefs->SetString(prefs::kApplicationLocale, locale);
+    prefs->SavePersistentPrefs();
 
-  // Switch the locale.
-  ResourceBundle::ReloadSharedInstance(UTF8ToWide(locale));
+    // Switch the locale.
+    ResourceBundle::ReloadSharedInstance(UTF8ToWide(locale));
 
-  // Enable the keyboard layouts that are necessary for the new locale.
-  chromeos::input_method::EnableInputMethods(
-      locale, chromeos::input_method::kKeyboardLayoutsOnly,
-      kHardwareKeyboardLayout);
+    // Enable the keyboard layouts that are necessary for the new locale.
+    chromeos::input_method::EnableInputMethods(
+        locale, chromeos::input_method::kKeyboardLayoutsOnly,
+        kHardwareKeyboardLayout);
 
-  // The following line does not seem to affect locale anyhow. Maybe in future..
-  g_browser_process->SetApplicationLocale(locale);
+    // The following line does not seem to affect locale anyhow. Maybe in
+    // future..
+    g_browser_process->SetApplicationLocale(locale);
+  }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // views::ViewMenuDelegate implementation.
 
 void LanguageSwitchMenu::RunMenu(views::View* source, const gfx::Point& pt) {
   DCHECK(menu_ != NULL);
   gfx::Point point(pt);
   point.Offset(delta_x_, delta_y_);
   menu_->RunMenuAt(point, views::Menu2::ALIGN_TOPRIGHT);
@@ skipping 18 matching lines @@
 void LanguageSwitchMenu::ExecuteCommand(int command_id) {
   const std::string locale = language_list_->GetLocaleFromIndex(command_id);
   SwitchLanguage(locale);
   InitLanguageMenu();
 
   // Update all view hierarchies that the locale has changed.
   views::Widget::NotifyLocaleChanged();
 }
 
 }  // namespace chromeos