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/*
* Copyright (C) 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.
*/
#include "config.h"
#include "Hyphenation.h"
#if !PLATFORM(MAC) || PLATFORM(IOS) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
#include "AtomicStringKeyedMRUCache.h"
#include "TextBreakIteratorInternalICU.h"
#include <wtf/ListHashSet.h>
#include <wtf/RetainPtr.h>
namespace WebCore {
template<>
RetainPtr<CFLocaleRef> AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >::createValueForNullKey()
{
RetainPtr<CFLocaleRef> locale = adoptCF(CFLocaleCopyCurrent());
return CFStringIsHyphenationAvailableForLocale(locale.get()) ? locale : 0;
}
template<>
RetainPtr<CFLocaleRef> AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >::createValueForKey(const AtomicString& localeIdentifier)
{
RetainPtr<CFLocaleRef> locale = adoptCF(CFLocaleCreate(kCFAllocatorDefault, localeIdentifier.string().createCFString().get()));
return CFStringIsHyphenationAvailableForLocale(locale.get()) ? locale : 0;
}
static AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >& cfLocaleCache()
{
DEFINE_STATIC_LOCAL(AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >, cache, ());
return cache;
}
bool canHyphenate(const AtomicString& localeIdentifier)
{
return cfLocaleCache().get(localeIdentifier);
}
size_t lastHyphenLocation(const UChar* characters, size_t length, size_t beforeIndex, const AtomicString& localeIdentifier)
{
RetainPtr<CFStringRef> string = adoptCF(CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, reinterpret_cast<const UniChar*>(characters), length, kCFAllocatorNull));
RetainPtr<CFLocaleRef> locale = cfLocaleCache().get(localeIdentifier);
ASSERT(locale);
CFOptionFlags searchAcrossWordBoundaries = 1;
CFIndex result = CFStringGetHyphenationLocationBeforeIndex(string.get(), beforeIndex, CFRangeMake(0, length), searchAcrossWordBoundaries, locale.get(), 0);
return result == kCFNotFound ? 0 : result;
}
} // namespace WebCore
#endif // !PLATFORM(MAC) || PLATFORM(IOS) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
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