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
14namespace base {
15
16template <typename T>
17class Callback;
18
19}  // namespace base
20
21namespace chromeos {
22namespace 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)
31typedef 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)
40void 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_
48