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 #include "config.h"
27 #include "Hyphenation.h"
28
29 #if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD)
30
31 #include "AtomicStringKeyedMRUCache.h"
32 #include "TextBreakIteratorInternalICU.h"
33 #include <wtf/ListHashSet.h>
34 #include <wtf/RetainPtr.h>
35
36 namespace WebCore {
37
38 #if !PLATFORM(WIN) || (defined(MAC_OS_X_VERSION_10_7) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7)
39
40 template<>
createValueForNullKey()41 RetainPtr<CFLocaleRef> AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >::createValueForNullKey()
42 {
43 RetainPtr<CFLocaleRef> locale(AdoptCF, CFLocaleCopyCurrent());
44
45 return CFStringIsHyphenationAvailableForLocale(locale.get()) ? locale : 0;
46 }
47
48 template<>
createValueForKey(const AtomicString & localeIdentifier)49 RetainPtr<CFLocaleRef> AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >::createValueForKey(const AtomicString& localeIdentifier)
50 {
51 RetainPtr<CFStringRef> cfLocaleIdentifier(AdoptCF, localeIdentifier.createCFString());
52 RetainPtr<CFLocaleRef> locale(AdoptCF, CFLocaleCreate(kCFAllocatorDefault, cfLocaleIdentifier.get()));
53
54 return CFStringIsHyphenationAvailableForLocale(locale.get()) ? locale : 0;
55 }
56
cfLocaleCache()57 static AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >& cfLocaleCache()
58 {
59 DEFINE_STATIC_LOCAL(AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef> >, cache, ());
60 return cache;
61 }
62
canHyphenate(const AtomicString & localeIdentifier)63 bool canHyphenate(const AtomicString& localeIdentifier)
64 {
65 return cfLocaleCache().get(localeIdentifier);
66 }
67
lastHyphenLocation(const UChar * characters,size_t length,size_t beforeIndex,const AtomicString & localeIdentifier)68 size_t lastHyphenLocation(const UChar* characters, size_t length, size_t beforeIndex, const AtomicString& localeIdentifier)
69 {
70 RetainPtr<CFStringRef> string(AdoptCF, CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, reinterpret_cast<const UniChar*>(characters), length, kCFAllocatorNull));
71
72 RetainPtr<CFLocaleRef> locale = cfLocaleCache().get(localeIdentifier);
73 ASSERT(locale);
74
75 CFIndex result = CFStringGetHyphenationLocationBeforeIndex(string.get(), beforeIndex, CFRangeMake(0, length), 0, locale.get(), 0);
76 return result == kCFNotFound ? 0 : result;
77 }
78
79 #else
80
81 bool canHyphenate(const AtomicString&)
82 {
83 return false;
84 }
85
86 size_t lastHyphenLocation(const UChar*, size_t, size_t, const AtomicString&)
87 {
88 ASSERT_NOT_REACHED();
89 return 0;
90 }
91
92 #endif // PLATFORM(WIN) && (!defined(MAC_OS_X_VERSION_10_7) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7)
93
94 } // namespace WebCore
95
96 #endif // !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD)
97