chrome/browser/chromeos/base/locale_util.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // This file contains utility functions for locale change.
   6
   7 #ifndef CHROME_BROWSER_CHROMEOS_BASE_LOCALE_UTIL_H_
   8 #define CHROME_BROWSER_CHROMEOS_BASE_LOCALE_UTIL_H_
   9
  10 #include <string>
  11
  12 #include "base/memory/scoped_ptr.h"
  13
  14 namespace base {
  15
  16 template <typename T>
  17 class Callback;
  18
  19 }  // namespace base
  20
  21 namespace chromeos {
  22 namespace locale_util {
  23
  24 // This callback is called on UI thread, when ReloadLocaleResources() is
  25 // completed on BlockingPool.
  26 // Arguments:
  27 //   locale - (copy of) locale argument to SwitchLanguage(). Expected locale.
  28 //   loaded_locale - actual locale name loaded.
  29 //   success - if locale load succeeded.
  30 // (const std::string* locale, const std::string* loaded_locale, bool success)
  31 typedef base::Callback<void(const std::string&, const std::string&, bool)>
  32     SwitchLanguageCallback;
  33
  34 // This function updates input methods only if requested. In general you want
  35 // "enableLocaleKeyboardLayouts=true".
  36 // Note: in case of "enableLocaleKeyboardLayouts=false" the input
  37 // method currently in use may not be supported by the new locale. (i.e.
  38 // using new locale with unsupported input method may lead to undefined
  39 // behavior; use "enableLocaleKeyboardLayouts=false" with caution)
  40 void SwitchLanguage(const std::string& locale,
  41                     bool enableLocaleKeyboardLayouts,
  42                     scoped_ptr<SwitchLanguageCallback> callback);
  43
  44 }  // namespace locale_util
  45 }  // namespace chromeos
  46
  47 #endif  // CHROME_BROWSER_CHROMEOS_BASE_LOCALE_UTIL_H_