blob: 3021fec0717eefa426a5e7ebe8bbc768cf3337df [file] [log] [blame]
/*
* Copyright (C) 2019 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.
*/
#import "config.h"
#import <wtf/Language.h>
#import <wtf/Logging.h>
#import <wtf/NeverDestroyed.h>
#import <wtf/RetainPtr.h>
#import <wtf/cocoa/RuntimeApplicationChecksCocoa.h>
#import <wtf/cocoa/VectorCocoa.h>
#import <wtf/spi/cocoa/NSLocaleSPI.h>
#import <wtf/text/WTFString.h>
namespace WTF {
size_t indexOfBestMatchingLanguageInList(const String& language, const Vector<String>& languageList, bool& exactMatch)
{
auto matchedLanguages = retainPtr([NSLocale matchedLanguagesFromAvailableLanguages:createNSArray(languageList).get() forPreferredLanguages:@[ static_cast<NSString *>(language) ]]);
if (![matchedLanguages count]) {
exactMatch = false;
return languageList.size();
}
String firstMatchedLanguage = [matchedLanguages firstObject];
exactMatch = language == firstMatchedLanguage;
auto index = languageList.find(firstMatchedLanguage);
ASSERT(index < languageList.size());
return index;
}
bool canMinimizeLanguages()
{
static const bool result = []() -> bool {
return linkedOnOrAfter(SDKVersion::FirstThatMinimizesLanguages) && [NSLocale respondsToSelector:@selector(minimizedLanguagesFromLanguages:)];
}();
return result;
}
RetainPtr<CFArrayRef> minimizedLanguagesFromLanguages(CFArrayRef languages)
{
if (!canMinimizeLanguages()) {
LOG(Language, "Could not minimize languages.");
return languages;
}
ALLOW_NEW_API_WITHOUT_GUARDS_BEGIN
return (__bridge CFArrayRef)[NSLocale minimizedLanguagesFromLanguages:(__bridge NSArray<NSString *> *)languages];
ALLOW_NEW_API_WITHOUT_GUARDS_END
}
}