Chrome OS: make language per user.

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/resource_bundle.h"
 #include "base/i18n/rtl.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 60 matching lines @@
       language_list_->GetIndexFromLocale(locale));
 };
 
 void LanguageSwitchMenu::SetFirstLevelMenuWidth(int width) {
   DCHECK(menu_ != NULL);
   menu_->SetMinimumWidth(width);
 }
 
 // static
 void LanguageSwitchMenu::SwitchLanguage(const std::string& locale) {
+  if (g_browser_process->GetApplicationLocale() == locale) {
+    return;
+  }
   // Save new locale.
   DCHECK(g_browser_process);

[Denis Lagno, 2010/11/11 19:48:03]

move this DCHECK before anything else

[Denis Lagno, 2010/11/12 11:51:35]

Done.

   PrefService* prefs = g_browser_process->local_state();
   // 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.
@@ skipping 49 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