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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef LayoutLocale_h | 5 #ifndef LayoutLocale_h |
6 #define LayoutLocale_h | 6 #define LayoutLocale_h |
7 | 7 |
8 #include "platform/PlatformExport.h" | 8 #include "platform/PlatformExport.h" |
9 #include "platform/text/Hyphenation.h" | 9 #include "platform/text/Hyphenation.h" |
10 #include "wtf/Forward.h" | 10 #include "wtf/Forward.h" |
11 #include "wtf/RefCounted.h" | 11 #include "wtf/RefCounted.h" |
12 #include "wtf/text/AtomicString.h" | 12 #include "wtf/text/AtomicString.h" |
13 | 13 |
14 #include <unicode/uscript.h> | 14 #include <unicode/uscript.h> |
15 | 15 |
16 struct hb_language_impl_t; | 16 struct hb_language_impl_t; |
17 | 17 |
18 namespace blink { | 18 namespace blink { |
19 | 19 |
20 class Hyphenation; | 20 class Hyphenation; |
21 | 21 |
| 22 enum class LineBreakIteratorMode { Default, Normal, Strict, Loose }; |
| 23 |
22 class PLATFORM_EXPORT LayoutLocale : public RefCounted<LayoutLocale> { | 24 class PLATFORM_EXPORT LayoutLocale : public RefCounted<LayoutLocale> { |
23 public: | 25 public: |
24 static const LayoutLocale* get(const AtomicString& locale); | 26 static const LayoutLocale* get(const AtomicString& locale); |
25 static const LayoutLocale& getDefault(); | 27 static const LayoutLocale& getDefault(); |
26 static const LayoutLocale& getSystem(); | 28 static const LayoutLocale& getSystem(); |
27 static const LayoutLocale& valueOrDefault(const LayoutLocale* locale) { | 29 static const LayoutLocale& valueOrDefault(const LayoutLocale* locale) { |
28 return locale ? *locale : getDefault(); | 30 return locale ? *locale : getDefault(); |
29 } | 31 } |
30 | 32 |
31 bool operator==(const LayoutLocale& other) const { | 33 bool operator==(const LayoutLocale& other) const { |
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50 | 52 |
51 // Disambiguation of the Unified Han Ideographs. | 53 // Disambiguation of the Unified Han Ideographs. |
52 UScriptCode scriptForHan() const; | 54 UScriptCode scriptForHan() const; |
53 bool hasScriptForHan() const; | 55 bool hasScriptForHan() const; |
54 static const LayoutLocale* localeForHan(const LayoutLocale*); | 56 static const LayoutLocale* localeForHan(const LayoutLocale*); |
55 static void invalidateLocaleForHan() { s_defaultForHanComputed = false; } | 57 static void invalidateLocaleForHan() { s_defaultForHanComputed = false; } |
56 const char* localeForHanForSkFontMgr() const; | 58 const char* localeForHanForSkFontMgr() const; |
57 | 59 |
58 Hyphenation* getHyphenation() const; | 60 Hyphenation* getHyphenation() const; |
59 | 61 |
| 62 AtomicString localeWithBreakKeyword(LineBreakIteratorMode) const; |
| 63 |
60 static PassRefPtr<LayoutLocale> createForTesting(const AtomicString&); | 64 static PassRefPtr<LayoutLocale> createForTesting(const AtomicString&); |
61 static void clearForTesting(); | 65 static void clearForTesting(); |
62 static void setHyphenationForTesting(const AtomicString&, | 66 static void setHyphenationForTesting(const AtomicString&, |
63 PassRefPtr<Hyphenation>); | 67 PassRefPtr<Hyphenation>); |
64 | 68 |
65 private: | 69 private: |
66 explicit LayoutLocale(const AtomicString&); | 70 explicit LayoutLocale(const AtomicString&); |
67 | 71 |
68 void computeScriptForHan() const; | 72 void computeScriptForHan() const; |
69 static void computeLocaleForHan(); | 73 static void computeLocaleForHan(); |
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83 | 87 |
84 static const LayoutLocale* s_default; | 88 static const LayoutLocale* s_default; |
85 static const LayoutLocale* s_system; | 89 static const LayoutLocale* s_system; |
86 static const LayoutLocale* s_defaultForHan; | 90 static const LayoutLocale* s_defaultForHan; |
87 static bool s_defaultForHanComputed; | 91 static bool s_defaultForHanComputed; |
88 }; | 92 }; |
89 | 93 |
90 } // namespace blink | 94 } // namespace blink |
91 | 95 |
92 #endif // LayoutLocale_h | 96 #endif // LayoutLocale_h |
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