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27 #include "Hyphenation.h"
29 #include "AtomicStringKeyedMRUCache.h"
31 #include "TextBreakIteratorInternalICU.h"
32 #include <wtf/ListHashSet.h>
33 #include <wtf/RetainPtr.h>
34 #include <wtf/text/StringView.h>
39 RetainPtr<CFLocaleRef> AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef>>::createValueForNullKey()
41 // CF hyphenation functions use locale (regional formats) language, which doesn't necessarily match primary UI language,
42 // so we can't use default locale here. See <rdar://problem/14897664>.
43 RetainPtr<CFLocaleRef> locale = adoptCF(CFLocaleCreate(kCFAllocatorDefault, defaultLanguage().createCFString().get()));
45 return CFStringIsHyphenationAvailableForLocale(locale.get()) ? locale : 0;
49 RetainPtr<CFLocaleRef> AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef>>::createValueForKey(const AtomicString& localeIdentifier)
51 RetainPtr<CFLocaleRef> locale = adoptCF(CFLocaleCreate(kCFAllocatorDefault, localeIdentifier.string().createCFString().get()));
53 return CFStringIsHyphenationAvailableForLocale(locale.get()) ? locale : 0;
56 static AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef>>& cfLocaleCache()
58 DEPRECATED_DEFINE_STATIC_LOCAL(AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef>>, cache, ());
62 bool canHyphenate(const AtomicString& localeIdentifier)
64 return cfLocaleCache().get(localeIdentifier);
67 size_t lastHyphenLocation(StringView text, size_t beforeIndex, const AtomicString& localeIdentifier)
69 RetainPtr<CFLocaleRef> locale = cfLocaleCache().get(localeIdentifier);
72 CFOptionFlags searchAcrossWordBoundaries = 1;
73 CFIndex result = CFStringGetHyphenationLocationBeforeIndex(text.createCFStringWithoutCopying().get(), beforeIndex, CFRangeMake(0, text.length()), searchAcrossWordBoundaries, locale.get(), 0);
74 return result == kCFNotFound ? 0 : result;
77 } // namespace WebCore