chrome/browser/chromeos/base/locale_util.h

// Copyright 2013 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.

// This file contains utility functions for locale change.

#ifndef CHROME_BROWSER_CHROMEOS_BASE_LOCALE_UTIL_H_
#define CHROME_BROWSER_CHROMEOS_BASE_LOCALE_UTIL_H_

#include <string>

#include "base/memory/scoped_ptr.h"

namespace base {

template <typename T>
class Callback;

}  // namespace base

namespace chromeos {
namespace locale_util {

// This callback is called on UI thread, when ReloadLocaleResources() is
// completed on BlockingPool.
// Arguments:
//   locale - (copy of) locale argument to SwitchLanguage(). Expected locale.
//   loaded_locale - actual locale name loaded.
//   success - if locale load succeeded.
// (const std::string* locale, const std::string* loaded_locale, bool success)
typedef base::Callback<void(const std::string&, const std::string&, bool)>
    SwitchLanguageCallback;

// This function updates input methods only if requested. In general you want
// "enableLocaleKeyboardLayouts=true".
// Note: in case of "enableLocaleKeyboardLayouts=false" the input
// method currently in use may not be supported by the new locale. (i.e.
// using new locale with unsupported input method may lead to undefined
// behavior; use "enableLocaleKeyboardLayouts=false" with caution)
void SwitchLanguage(const std::string& locale,
                    bool enableLocaleKeyboardLayouts,
                    scoped_ptr<SwitchLanguageCallback> callback);

}  // namespace locale_util
}  // namespace chromeos

#endif  // CHROME_BROWSER_CHROMEOS_BASE_LOCALE_UTIL_H_