// Copyright 2007-2010 Google Inc.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

// ========================================================================

#ifndef OMAHA_COMMON_LANG_H_

#define OMAHA_COMMON_LANG_H_

#include <atlstr.h>

#include <map>

#include <vector>

#include "base/basictypes.h"

namespace omaha {

namespace lang {

CString GetDefaultLanguage(bool is_system);

LANGID GetDefaultLanguageID(bool is_system);

CString GetLanguageForLangID(LANGID langid);

bool IsLanguageIDSupported(LANGID langid);

bool IsLanguageSupported(const CString& language);

void GetSupportedLanguages(std::vector<CString>* codes);

// Returns requested_language if supported. Otherwise returns current user's

// language if supported or "en" if both of them are not supported.

CString GetLanguageForProcess(const CString& requested_language);

// Returns the written language name for a given language. For most languages,

// the names are exactly same. There are very few exceptions. For example, the

// written language of zh-HK is zh-TW.

CString GetWrittenLanguage(const CString& requested_language);

// Returns whether a language and its corresponding supported language have

// different names.

bool DoesSupportedLanguageUseDifferentId(const CString& requested_language);

} // namespace lang

} // namespace omaha

#endif // OMAHA_COMMON_LANG_H_