blob: 9e7bff109798c667ae752af2afd8f4fa3d9dc263 [file] [log] [blame]
/*
* Copyright (C) 2007, 2016, 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include <wtf/Language.h>
#include <mutex>
#include <windows.h>
#include <wtf/Lock.h>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
#include <wtf/text/win/WCharStringExtras.h>
namespace WTF {
static Lock platformLanguageMutex;
static String localeInfo(LCTYPE localeType, const String& fallback)
{
LANGID langID = GetUserDefaultUILanguage();
int localeChars = GetLocaleInfo(langID, localeType, nullptr, 0);
if (!localeChars)
return fallback;
UChar* localeNameBuf;
String localeName = String::createUninitialized(localeChars, localeNameBuf);
localeChars = GetLocaleInfo(langID, localeType, wcharFrom(localeNameBuf), localeChars);
if (!localeChars)
return fallback;
if (localeName.isEmpty())
return fallback;
localeName.truncate(localeName.length() - 1);
return localeName;
}
static String platformLanguage()
{
auto locker = holdLock(platformLanguageMutex);
static String computedDefaultLanguage;
if (!computedDefaultLanguage.isEmpty())
return computedDefaultLanguage.isolatedCopy();
String languageName = localeInfo(LOCALE_SISO639LANGNAME, "en");
String countryName = localeInfo(LOCALE_SISO3166CTRYNAME, String());
if (countryName.isEmpty())
computedDefaultLanguage = languageName;
else
computedDefaultLanguage = languageName + '-' + countryName;
return computedDefaultLanguage;
}
Vector<String> platformUserPreferredLanguages()
{
return { platformLanguage() };
}
} // namespace WTF