/* * Copyright (C) 2003, 2005, 2006, 2010, 2011 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. AND ITS CONTRIBUTORS ``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 ITS 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 "Language.h" #import "BlockExceptions.h" #import "WebCoreSystemInterface.h" #import <wtf/Assertions.h> #import <wtf/MainThread.h> #import <wtf/RetainPtr.h> #import <wtf/text/WTFString.h> using namespace WebCore; static BOOL useCachedPreferredLanguages; @interface WebLanguageChangeObserver : NSObject { } @end @implementation WebLanguageChangeObserver + (void)_webkit_languagePreferencesDidChange { ASSERT(isMainThread()); useCachedPreferredLanguages = NO; languageDidChange(); } @end namespace WebCore { static String httpStyleLanguageCode(NSString *languageCode) { ASSERT(isMainThread()); // Look up the language code using CFBundle. RetainPtr<CFStringRef> preferredLanguageCode = adoptCF(wkCopyCFLocalizationPreferredName((CFStringRef)languageCode)); if (preferredLanguageCode) languageCode = (NSString *)preferredLanguageCode.get(); // Make the string lowercase. NSString *lowercaseLanguageCode = [languageCode lowercaseString]; // Turn a '_' into a '-' if it appears after a 2-letter language code. if ([lowercaseLanguageCode length] >= 3 && [lowercaseLanguageCode characterAtIndex:2] == '_') { RetainPtr<NSMutableString> mutableLanguageCode = adoptNS([lowercaseLanguageCode mutableCopy]); [mutableLanguageCode.get() replaceCharactersInRange:NSMakeRange(2, 1) withString:@"-"]; return mutableLanguageCode.get(); } return lowercaseLanguageCode; } Vector<String> platformUserPreferredLanguages() { DEFINE_STATIC_LOCAL(Vector<String>, userPreferredLanguages, ()); ASSERT(isMainThread()); BEGIN_BLOCK_OBJC_EXCEPTIONS; if (!useCachedPreferredLanguages) { useCachedPreferredLanguages = YES; userPreferredLanguages.clear(); RetainPtr<CFArrayRef> languages = adoptCF(CFLocaleCopyPreferredLanguages()); CFIndex languageCount = CFArrayGetCount(languages.get()); if (!languageCount) userPreferredLanguages.append("en"); else { for (CFIndex i = 0; i < languageCount; i++) userPreferredLanguages.append(httpStyleLanguageCode((NSString *)CFArrayGetValueAtIndex(languages.get(), i))); } } #if !PLATFORM(IOS) static bool languageChangeObserverAdded; if (!languageChangeObserverAdded) { [[NSDistributedNotificationCenter defaultCenter] addObserver:[WebLanguageChangeObserver self] selector:@selector(_webkit_languagePreferencesDidChange) name:@"AppleLanguagePreferencesChangedNotification" object:nil]; languageChangeObserverAdded = true; } #endif // !PLATFORM(IOS) return userPreferredLanguages; END_BLOCK_OBJC_EXCEPTIONS; return Vector<String>(); } }