1/*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "Hyphenation.h"
28
29#if defined(BUILDING_ON_LEOPARD) || defined(BUILDING_ON_SNOW_LEOPARD)
30
31#import "AtomicStringKeyedMRUCache.h"
32#import "TextBreakIteratorInternalICU.h"
33#import "WebCoreSystemInterface.h"
34#import <wtf/RetainPtr.h>
35
36namespace WebCore {
37
38template<>
39bool AtomicStringKeyedMRUCache<bool>::createValueForNullKey()
40{
41    return !strcmp(currentSearchLocaleID(), "en");
42}
43
44template<>
45bool AtomicStringKeyedMRUCache<bool>::createValueForKey(const AtomicString& localeIdentifier)
46{
47    RetainPtr<CFStringRef> cfLocaleIdentifier(AdoptCF, localeIdentifier.createCFString());
48    RetainPtr<CFDictionaryRef> components(AdoptCF, CFLocaleCreateComponentsFromLocaleIdentifier(kCFAllocatorDefault, cfLocaleIdentifier.get()));
49    CFStringRef language = reinterpret_cast<CFStringRef>(CFDictionaryGetValue(components.get(), kCFLocaleLanguageCode));
50    static CFStringRef englishLanguage = CFSTR("en");
51    return language && CFEqual(language, englishLanguage);
52}
53
54bool canHyphenate(const AtomicString& localeIdentifier)
55{
56    DEFINE_STATIC_LOCAL(AtomicStringKeyedMRUCache<bool>, isEnglishCache, ());
57    return isEnglishCache.get(localeIdentifier);
58}
59
60size_t lastHyphenLocation(const UChar* characters, size_t length, size_t beforeIndex, const AtomicString& localeIdentifier)
61{
62    ASSERT_UNUSED(localeIdentifier, canHyphenate(localeIdentifier));
63
64    RetainPtr<CFStringRef> string(AdoptCF, CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, characters, length, kCFAllocatorNull));
65    return wkGetHyphenationLocationBeforeIndex(string.get(), beforeIndex);
66}
67
68} // namespace WebCore
69
70#endif // defined(BUILDING_ON_LEOPARD) || defined(BUILDING_ON_SNOW_LEOPARD)
71