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/*
* Copyright (C) 2003, 2005, 2006, 2010 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/text/WTFString.h>
using namespace WebCore;
static NSString *preferredLanguageCode;
@interface LanguageChangeObserver : NSObject {
}
@end
@implementation LanguageChangeObserver
+ (void)_webkit_languagePreferencesDidChange
{
ASSERT(isMainThread());
[preferredLanguageCode release];
preferredLanguageCode = nil;
languageDidChange();
}
@end
namespace WebCore {
static NSString *createHTTPStyleLanguageCode(NSString *languageCode)
{
ASSERT(isMainThread());
// Look up the language code using CFBundle.
CFStringRef preferredLanguageCode = wkCopyCFLocalizationPreferredName((CFStringRef)languageCode);
if (preferredLanguageCode)
languageCode = (NSString *)preferredLanguageCode;
// Make the string lowercase.
NSString *lowercaseLanguageCode = [languageCode lowercaseString];
NSString *httpStyleLanguageCode;
// Turn a '_' into a '-' if it appears after a 2-letter language code.
if ([lowercaseLanguageCode length] >= 3 && [lowercaseLanguageCode characterAtIndex:2] == '_') {
NSMutableString *mutableLanguageCode = [lowercaseLanguageCode mutableCopy];
[mutableLanguageCode replaceCharactersInRange:NSMakeRange(2, 1) withString:@"-"];
httpStyleLanguageCode = mutableLanguageCode;
} else
httpStyleLanguageCode = [lowercaseLanguageCode retain];
if (preferredLanguageCode)
CFRelease(preferredLanguageCode);
return httpStyleLanguageCode;
}
String platformDefaultLanguage()
{
ASSERT(isMainThread());
BEGIN_BLOCK_OBJC_EXCEPTIONS;
if (!preferredLanguageCode) {
[[NSUserDefaults standardUserDefaults] synchronize];
NSArray *languages = [[NSUserDefaults standardUserDefaults] stringArrayForKey:@"AppleLanguages"];
if (![languages count])
preferredLanguageCode = @"en";
else
preferredLanguageCode = createHTTPStyleLanguageCode([languages objectAtIndex:0]);
}
NSString *code = [[preferredLanguageCode retain] autorelease];
static bool languageChangeObserverAdded;
if (!languageChangeObserverAdded) {
[[NSDistributedNotificationCenter defaultCenter] addObserver:[LanguageChangeObserver self]
selector:@selector(_webkit_languagePreferencesDidChange)
name:@"AppleLanguagePreferencesChangedNotification"
object:nil];
languageChangeObserverAdded = true;
}
return code;
END_BLOCK_OBJC_EXCEPTIONS;
return String();
}
}
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