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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // This file contains implementation details, the public interface is declared | |
6 // in time_format.h. | |
7 | |
8 #ifndef UI_BASE_L10N_FORMATTER_H_ | |
9 #define UI_BASE_L10N_FORMATTER_H_ | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/lazy_instance.h" | |
13 #include "base/memory/scoped_ptr.h" | |
14 #include "third_party/icu/source/common/unicode/unistr.h" | |
15 #include "third_party/icu/source/i18n/unicode/plurfmt.h" | |
16 #include "third_party/icu/source/i18n/unicode/plurrule.h" | |
17 #include "ui/base/l10n/time_format.h" | |
18 #include "ui/base/ui_base_export.h" | |
19 | |
20 namespace ui { | |
21 | |
22 struct Pluralities; | |
23 | |
24 // Formatter for a (format, length) combination. May either be instantiated | |
25 // with four parameters for use in TimeFormat::Simple() or with ten parameters | |
26 // for use in TimeFormat::Detailed(). | |
27 class Formatter { | |
28 public: | |
29 enum Unit { | |
30 UNIT_SEC, | |
31 UNIT_MIN, | |
32 UNIT_HOUR, | |
33 UNIT_DAY, | |
34 UNIT_COUNT // Enum size counter, not a unit. Must be last. | |
35 }; | |
36 enum TwoUnits { | |
37 TWO_UNITS_MIN_SEC, | |
38 TWO_UNITS_HOUR_MIN, | |
39 TWO_UNITS_DAY_HOUR, | |
40 TWO_UNITS_COUNT // Enum size counter, not a unit pair. Must be last. | |
41 }; | |
42 | |
43 Formatter(const Pluralities& sec_pluralities, | |
44 const Pluralities& min_pluralities, | |
45 const Pluralities& hour_pluralities, | |
46 const Pluralities& day_pluralities); | |
47 | |
48 Formatter(const Pluralities& sec_pluralities, | |
49 const Pluralities& min_pluralities, | |
50 const Pluralities& hour_pluralities, | |
51 const Pluralities& day_pluralities, | |
52 const Pluralities& min_sec_pluralities1, | |
53 const Pluralities& min_sec_pluralities2, | |
54 const Pluralities& hour_min_pluralities1, | |
55 const Pluralities& hour_min_pluralities2, | |
56 const Pluralities& day_hour_pluralities1, | |
57 const Pluralities& day_hour_pluralities2); | |
58 | |
59 void Format(Unit unit, int value, icu::UnicodeString& formatted_string) const; | |
60 | |
61 void Format(TwoUnits units, | |
62 int value_1, | |
63 int value_2, | |
64 icu::UnicodeString& formatted_string) const; | |
65 | |
66 private: | |
67 // Create a hard-coded fallback plural format. This will never be called | |
68 // unless translators make a mistake. | |
69 scoped_ptr<icu::PluralFormat> CreateFallbackFormat( | |
70 const icu::PluralRules& rules, | |
71 const Pluralities& pluralities) const; | |
72 | |
73 scoped_ptr<icu::PluralFormat> InitFormat(const Pluralities& pluralities); | |
74 | |
75 scoped_ptr<icu::PluralFormat> simple_format_[UNIT_COUNT]; | |
76 scoped_ptr<icu::PluralFormat> detailed_format_[TWO_UNITS_COUNT][2]; | |
77 | |
78 DISALLOW_IMPLICIT_CONSTRUCTORS(Formatter); | |
79 }; | |
80 | |
81 // Class to hold all Formatters, intended to be used in a global LazyInstance. | |
82 class UI_BASE_EXPORT FormatterContainer { | |
83 public: | |
84 FormatterContainer(); | |
85 ~FormatterContainer(); | |
86 | |
87 const Formatter* Get(TimeFormat::Format format, | |
88 TimeFormat::Length length) const; | |
89 | |
90 static bool GetFallback() { return force_fallback_; } | |
tony
2014/02/26 20:29:20
Nit: get_force_fallback()
Or you could just move
Thiemo Nagel
2014/02/26 21:13:34
I can't make it private because it's used by Forma
bartfab (slow)
2014/02/27 17:14:51
Note that the style guide gives you a choice getwe
| |
91 static void SetFallbackForTesting(bool force_fallback) { | |
tony
2014/02/26 20:29:20
Nit: set_fallback_for_testing(bool force_fallback)
Thiemo Nagel
2014/02/26 21:13:34
Doesn't apply anymore.
| |
92 force_fallback_ = force_fallback; | |
93 } | |
94 | |
95 void Reset() { | |
96 Shutdown(); | |
tony
2014/02/26 20:29:20
Nit: Move this implementation to the cc file.
Thiemo Nagel
2014/02/26 21:13:34
I've renamed it ResetForTesting() and kept it insi
| |
97 Initialize(); | |
98 } | |
99 | |
100 private: | |
101 void Initialize(); | |
102 void Shutdown(); | |
103 | |
104 scoped_ptr<Formatter> | |
105 formatter_[TimeFormat::FORMAT_COUNT][TimeFormat::LENGTH_COUNT]; | |
106 | |
107 static bool force_fallback_; | |
108 | |
109 DISALLOW_COPY_AND_ASSIGN(FormatterContainer); | |
110 }; | |
111 | |
112 // Windows compilation requires full definition of FormatterContainer before | |
113 // LazyInstance<FormatterContainter> may be declared. | |
114 extern UI_BASE_EXPORT base::LazyInstance<FormatterContainer> g_container; | |
115 | |
116 } // namespace ui | |
117 | |
118 #endif | |
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