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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_intl_AppDateTimeFormat_h
#define mozilla_intl_AppDateTimeFormat_h
#include <time.h>
#include "gtest/MozGtestFriend.h"
#include "nsTHashMap.h"
#include "nsString.h"
#include "prtime.h"
#include "mozilla/intl/DateTimeFormat.h"
namespace mozilla::intl {
/**
* Get a DateTimeFormat for use in Gecko. This specialized DateTimeFormat
* respects the user's OS and app preferences, and provides caching of the
* underlying mozilla::intl resources.
*
* This class is not thread-safe as it lazily initializes a cache without
* any type of multi-threaded protections.
*/
class AppDateTimeFormat {
public:
/**
* Format a DateTime using the applied app and OS-level preferences, with a
* style bag and the PRTime.
*/
static nsresult Format(const DateTimeFormat::StyleBag& aStyle,
const PRTime aPrTime, nsAString& aStringOut);
/**
* Format a DateTime using the applied app and OS-level preferences, with a
* style bag and the PRExplodedTime.
*/
static nsresult Format(const DateTimeFormat::StyleBag& aStyle,
const PRExplodedTime* aExplodedTime,
nsAString& aStringOut);
/**
* Format a DateTime using the applied app and OS-level preferences, with a
* components bag and the PRExplodedTime.
*/
static nsresult Format(const DateTimeFormat::ComponentsBag& aComponents,
const PRExplodedTime* aExplodedTime,
nsAString& aStringOut);
/**
* If the app locale changes, the cached locale needs to be reset.
*/
static void ClearLocaleCache();
static void Shutdown();
private:
AppDateTimeFormat() = delete;
static nsresult Initialize();
static void DeleteCache();
static const size_t kMaxCachedFormats = 15;
FRIEND_TEST(AppDateTimeFormat, FormatPRExplodedTime);
FRIEND_TEST(AppDateTimeFormat, DateFormatSelectors);
FRIEND_TEST(AppDateTimeFormat, FormatPRExplodedTimeForeign);
FRIEND_TEST(AppDateTimeFormat, DateFormatSelectorsForeign);
/**
* Format a DateTime using the applied app and OS-level preferences, with a
* components bag and the PRExplodedTime.
*/
static nsresult Format(const DateTimeFormat::StyleBag& aStyle,
const double aUnixEpoch,
const PRTimeParameters* aTimeParameters,
nsAString& aStringOut);
static void BuildTimeZoneString(const PRTimeParameters& aTimeParameters,
nsAString& aStringOut);
static nsCString* sLocale;
static nsTHashMap<nsCStringHashKey, UniquePtr<DateTimeFormat>>* sFormatCache;
};
} // namespace mozilla::intl
#endif /* mozilla_intl_AppDateTimeFormat_h */
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