| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // This file contains implementation details, the public interface is declared |
| // in time_format.h. |
| |
| #ifndef UI_BASE_L10N_FORMATTER_H_ |
| #define UI_BASE_L10N_FORMATTER_H_ |
| |
| #include <memory> |
| |
| #include "base/component_export.h" |
| #include "base/lazy_instance.h" |
| #include "base/macros.h" |
| #include "third_party/icu/source/common/unicode/unistr.h" |
| #include "third_party/icu/source/i18n/unicode/msgfmt.h" |
| #include "third_party/icu/source/i18n/unicode/plurrule.h" |
| #include "ui/base/l10n/time_format.h" |
| |
| namespace ui { |
| |
| struct Pluralities; |
| |
| // Formatter for a (format, length) combination. May either be instantiated |
| // with six parameters for use in TimeFormat::Simple() or with twelve parameters |
| // for use in TimeFormat::Detailed(). |
| class Formatter { |
| public: |
| enum Unit { |
| UNIT_SEC, |
| UNIT_MIN, |
| UNIT_HOUR, |
| UNIT_DAY, |
| UNIT_MONTH, |
| UNIT_YEAR, |
| UNIT_COUNT // Enum size counter, not a unit. Must be last. |
| }; |
| enum TwoUnits { |
| TWO_UNITS_MIN_SEC, |
| TWO_UNITS_HOUR_MIN, |
| TWO_UNITS_DAY_HOUR, |
| TWO_UNITS_COUNT // Enum size counter, not a unit pair. Must be last. |
| }; |
| |
| Formatter(const Pluralities& sec_pluralities, |
| const Pluralities& min_pluralities, |
| const Pluralities& hour_pluralities, |
| const Pluralities& day_pluralities, |
| const Pluralities& month_pluralities, |
| const Pluralities& year_pluralities); |
| |
| Formatter(const Pluralities& sec_pluralities, |
| const Pluralities& min_pluralities, |
| const Pluralities& hour_pluralities, |
| const Pluralities& day_pluralities, |
| const Pluralities& month_pluralities, |
| const Pluralities& year_pluralities, |
| const Pluralities& min_sec_pluralities1, |
| const Pluralities& min_sec_pluralities2, |
| const Pluralities& hour_min_pluralities1, |
| const Pluralities& hour_min_pluralities2, |
| const Pluralities& day_hour_pluralities1, |
| const Pluralities& day_hour_pluralities2); |
| |
| void Format(Unit unit, int value, icu::UnicodeString* formatted_string) const; |
| |
| void Format(TwoUnits units, |
| int value_1, |
| int value_2, |
| icu::UnicodeString* formatted_string) const; |
| |
| private: |
| // Create a hard-coded fallback message format for plural formatting. |
| // This will never be called unless translators make a mistake. |
| std::unique_ptr<icu::MessageFormat> CreateFallbackFormat( |
| const icu::PluralRules& rules, |
| const Pluralities& pluralities) const; |
| |
| std::unique_ptr<icu::MessageFormat> InitFormat( |
| const Pluralities& pluralities); |
| |
| std::unique_ptr<icu::MessageFormat> simple_format_[UNIT_COUNT]; |
| std::unique_ptr<icu::MessageFormat> detailed_format_[TWO_UNITS_COUNT][2]; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(Formatter); |
| }; |
| |
| // Class to hold all Formatters, intended to be used in a global LazyInstance. |
| class COMPONENT_EXPORT(UI_BASE) FormatterContainer { |
| public: |
| FormatterContainer(); |
| ~FormatterContainer(); |
| |
| const Formatter* Get(TimeFormat::Format format, |
| TimeFormat::Length length) const; |
| |
| void ResetForTesting() { |
| Shutdown(); |
| Initialize(); |
| } |
| |
| private: |
| void Initialize(); |
| void Shutdown(); |
| |
| std::unique_ptr<Formatter> formatter_[TimeFormat::FORMAT_COUNT] |
| [TimeFormat::LENGTH_COUNT]; |
| |
| DISALLOW_COPY_AND_ASSIGN(FormatterContainer); |
| }; |
| |
| // Windows compilation requires full definition of FormatterContainer before |
| // LazyInstance<FormatterContainter> may be declared. |
| extern COMPONENT_EXPORT(UI_BASE) base::LazyInstance<FormatterContainer>::Leaky |
| g_container; |
| |
| // For use in unit tests only. |
| extern COMPONENT_EXPORT(UI_BASE) bool formatter_force_fallback; |
| |
| } // namespace ui |
| |
| #endif // UI_BASE_L10N_FORMATTER_H_ |