зеркало из https://github.com/mozilla/gecko-dev.git
98 строки
3.6 KiB
C++
98 строки
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_DateTimeFormat_h
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#define mozilla_DateTimeFormat_h
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#include <time.h>
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#include "gtest/MozGtestFriend.h"
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#include "nsDataHashtable.h"
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#include "nsString.h"
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#include "prtime.h"
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#include "unicode/udat.h"
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namespace mozilla {
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enum nsDateFormatSelector : long {
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// Do not change the order of the values below (see bug 1225696).
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kDateFormatNone = 0, // do not include the date in the format string
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kDateFormatLong, // provides the long date format for the given locale
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kDateFormatShort, // provides the short date format for the given locale
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};
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enum nsTimeFormatSelector : long {
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kTimeFormatNone = 0, // don't include the time in the format string
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kTimeFormatLong, // provides the time format with seconds in the given
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// locale
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kTimeFormatShort // provides the time format without seconds in the given
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// locale
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};
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class DateTimeFormat {
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public:
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enum class Field { Month, Weekday };
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enum class Style { Wide, Abbreviated };
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enum class Skeleton { yyyyMM, yyyyMMMM };
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// performs a locale sensitive date formatting operation on the PRTime
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// parameter
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static nsresult FormatPRTime(const nsDateFormatSelector aDateFormatSelector,
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const nsTimeFormatSelector aTimeFormatSelector,
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const PRTime aPrTime, nsAString& aStringOut);
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// performs a locale sensitive date formatting operation on the PRExplodedTime
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// parameter
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static nsresult FormatPRExplodedTime(
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const nsDateFormatSelector aDateFormatSelector,
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const nsTimeFormatSelector aTimeFormatSelector,
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const PRExplodedTime* aExplodedTime, nsAString& aStringOut);
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// performs a locale sensitive date formatting operation on the PRExplodedTime
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// parameter, using the specified options.
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static nsresult FormatDateTime(const PRExplodedTime* aExplodedTime,
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const Skeleton aSkeleton,
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nsAString& aStringOut);
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// finds the locale sensitive display name for the specified field on the
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// PRExplodedTime parameter
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static nsresult GetCalendarSymbol(const Field aField, const Style aStyle,
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const PRExplodedTime* aExplodedTime,
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nsAString& aStringOut);
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static void Shutdown();
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private:
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DateTimeFormat() = delete;
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static nsresult Initialize();
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static void DeleteCache();
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static const size_t kMaxCachedFormats = 15;
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FRIEND_TEST(DateTimeFormat, FormatPRExplodedTime);
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FRIEND_TEST(DateTimeFormat, DateFormatSelectors);
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FRIEND_TEST(DateTimeFormat, FormatPRExplodedTimeForeign);
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FRIEND_TEST(DateTimeFormat, DateFormatSelectorsForeign);
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// performs a locale sensitive date formatting operation on the UDate
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// parameter
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static nsresult FormatUDateTime(
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const nsDateFormatSelector aDateFormatSelector,
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const nsTimeFormatSelector aTimeFormatSelector, const UDate aUDateTime,
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const PRTimeParameters* aTimeParameters, nsAString& aStringOut);
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static void BuildTimeZoneString(const PRTimeParameters& aTimeParameters,
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nsAString& aStringOut);
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static nsCString* mLocale;
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static nsDataHashtable<nsCStringHashKey, UDateFormat*>* mFormatCache;
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};
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} // namespace mozilla
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#endif /* mozilla_DateTimeFormat_h */
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