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1cfba2620a
This PR fixes l10n issue when months names are being used in incorrect form in CupertinoDatePicker in CupertinoDatePickerMode.yearMonth (#130930). The idea of this proposal is to add an optional parameter `standalone` for `CupertinoLocalizations.datePickerMonth` to be able to choose when to use months names in base form (intl DateSymbols.STANDALONEMONTHS) and when in day-dependent form (intl DateSymbols.MONTHS) <details> <summary>Before</summary> <img width="366" alt="image" src="https://github.com/flutter/flutter/assets/32621121/1dd54fa7-6dd9-4053-889b-57134c145432"> <img width="387" alt="image" src="https://github.com/flutter/flutter/assets/32621121/c176070e-73e4-49d3-883b-ba31eca6d1d7"> </details> <details> <summary>After</summary> <img width="369" alt="image" src="https://github.com/flutter/flutter/assets/32621121/255594f1-219d-4bd4-9b75-1012912f8ab0"> <img width="378" alt="image" src="https://github.com/flutter/flutter/assets/32621121/16bbb41f-3f62-4446-bf41-e27140b649a9"> </details>
538 lines
21 KiB
Dart
538 lines
21 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/foundation.dart';
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import 'package:intl/intl.dart' as intl;
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import 'l10n/generated_cupertino_localizations.dart';
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import 'utils/date_localizations.dart' as util;
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import 'widgets_localizations.dart';
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// Examples can assume:
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// import 'package:flutter_localizations/flutter_localizations.dart';
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// import 'package:flutter/cupertino.dart';
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/// Implementation of localized strings for Cupertino widgets using the `intl`
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/// package for date and time formatting.
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///
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/// Further localization of strings beyond date time formatting are provided
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/// by language specific subclasses of [GlobalCupertinoLocalizations].
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///
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/// ## Supported languages
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///
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/// This class supports locales with the following [Locale.languageCode]s:
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///
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/// {@macro flutter.localizations.cupertino.languages}
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///
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/// This list is available programmatically via [kCupertinoSupportedLanguages].
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///
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/// ## Sample code
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///
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/// To include the localizations provided by this class in a [CupertinoApp],
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/// add [GlobalCupertinoLocalizations.delegates] to
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/// [CupertinoApp.localizationsDelegates], and specify the locales your
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/// app supports with [CupertinoApp.supportedLocales]:
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///
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/// ```dart
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/// const CupertinoApp(
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/// localizationsDelegates: GlobalCupertinoLocalizations.delegates,
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/// supportedLocales: <Locale>[
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/// Locale('en', 'US'), // American English
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/// Locale('he', 'IL'), // Israeli Hebrew
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/// // ...
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/// ],
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/// // ...
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/// )
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/// ```
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///
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/// See also:
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///
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/// * [DefaultCupertinoLocalizations], which provides US English localizations
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/// for Cupertino widgets.
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abstract class GlobalCupertinoLocalizations implements CupertinoLocalizations {
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/// Initializes an object that defines the Cupertino widgets' localized
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/// strings for the given `localeName`.
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///
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/// The remaining '*Format' arguments uses the intl package to provide
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/// [DateFormat] configurations for the `localeName`.
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const GlobalCupertinoLocalizations({
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required String localeName,
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required intl.DateFormat fullYearFormat,
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required intl.DateFormat dayFormat,
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required intl.DateFormat mediumDateFormat,
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required intl.DateFormat singleDigitHourFormat,
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required intl.DateFormat singleDigitMinuteFormat,
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required intl.DateFormat doubleDigitMinuteFormat,
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required intl.DateFormat singleDigitSecondFormat,
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required intl.NumberFormat decimalFormat,
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}) : _localeName = localeName,
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_fullYearFormat = fullYearFormat,
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_dayFormat = dayFormat,
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_mediumDateFormat = mediumDateFormat,
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_singleDigitHourFormat = singleDigitHourFormat,
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_singleDigitMinuteFormat = singleDigitMinuteFormat,
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_doubleDigitMinuteFormat = doubleDigitMinuteFormat,
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_singleDigitSecondFormat = singleDigitSecondFormat,
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_decimalFormat =decimalFormat;
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final String _localeName;
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final intl.DateFormat _fullYearFormat;
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final intl.DateFormat _dayFormat;
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final intl.DateFormat _mediumDateFormat;
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final intl.DateFormat _singleDigitHourFormat;
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final intl.DateFormat _singleDigitMinuteFormat;
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final intl.DateFormat _doubleDigitMinuteFormat;
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final intl.DateFormat _singleDigitSecondFormat;
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final intl.NumberFormat _decimalFormat;
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@override
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String datePickerYear(int yearIndex) {
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return _fullYearFormat.format(DateTime.utc(yearIndex));
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}
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@override
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String datePickerMonth(int monthIndex) {
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// It doesn't actually have anything to do with _fullYearFormat. It's just
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// taking advantage of the fact that _fullYearFormat loaded the needed
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// locale's symbols.
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return _fullYearFormat.dateSymbols.MONTHS[monthIndex - 1];
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}
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@override
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String datePickerStandaloneMonth(int monthIndex) {
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// It doesn't actually have anything to do with _fullYearFormat. It's just
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// taking advantage of the fact that _fullYearFormat loaded the needed
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// locale's symbols.
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//
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// Because this will be used without specifying any day of month,
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// in most cases it should be capitalized (according to rules in specific language).
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return intl.toBeginningOfSentenceCase(_fullYearFormat.dateSymbols.STANDALONEMONTHS[monthIndex - 1]) ??
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_fullYearFormat.dateSymbols.STANDALONEMONTHS[monthIndex - 1];
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}
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@override
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String datePickerDayOfMonth(int dayIndex, [int? weekDay]) {
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if (weekDay != null) {
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return ' ${DefaultCupertinoLocalizations.shortWeekdays[weekDay - DateTime.monday]} $dayIndex ';
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}
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// Year and month doesn't matter since we just want to day formatted.
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return _dayFormat.format(DateTime.utc(0, 0, dayIndex));
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}
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@override
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String datePickerMediumDate(DateTime date) {
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return _mediumDateFormat.format(date);
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}
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@override
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String datePickerHour(int hour) {
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return _singleDigitHourFormat.format(DateTime.utc(0, 0, 0, hour));
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}
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@override
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String datePickerMinute(int minute) {
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return _doubleDigitMinuteFormat.format(DateTime.utc(0, 0, 0, 0, minute));
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}
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/// Subclasses should provide the optional zero pluralization of [datePickerHourSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerHourSemanticsLabelZero => null;
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/// Subclasses should provide the optional one pluralization of [datePickerHourSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerHourSemanticsLabelOne => null;
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/// Subclasses should provide the optional two pluralization of [datePickerHourSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerHourSemanticsLabelTwo => null;
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/// Subclasses should provide the optional few pluralization of [datePickerHourSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerHourSemanticsLabelFew => null;
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/// Subclasses should provide the optional many pluralization of [datePickerHourSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerHourSemanticsLabelMany => null;
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/// Subclasses should provide the required other pluralization of [datePickerHourSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerHourSemanticsLabelOther;
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@override
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String? datePickerHourSemanticsLabel(int hour) {
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return intl.Intl.pluralLogic(
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hour,
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zero: datePickerHourSemanticsLabelZero,
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one: datePickerHourSemanticsLabelOne,
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two: datePickerHourSemanticsLabelTwo,
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few: datePickerHourSemanticsLabelFew,
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many: datePickerHourSemanticsLabelMany,
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other: datePickerHourSemanticsLabelOther,
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locale: _localeName,
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)?.replaceFirst(r'$hour', _decimalFormat.format(hour));
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}
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/// Subclasses should provide the optional zero pluralization of [datePickerMinuteSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerMinuteSemanticsLabelZero => null;
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/// Subclasses should provide the optional one pluralization of [datePickerMinuteSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerMinuteSemanticsLabelOne => null;
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/// Subclasses should provide the optional two pluralization of [datePickerMinuteSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerMinuteSemanticsLabelTwo => null;
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/// Subclasses should provide the optional few pluralization of [datePickerMinuteSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerMinuteSemanticsLabelFew => null;
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/// Subclasses should provide the optional many pluralization of [datePickerMinuteSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerMinuteSemanticsLabelMany => null;
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/// Subclasses should provide the required other pluralization of [datePickerMinuteSemanticsLabel] based on the ARB file.
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@protected
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String? get datePickerMinuteSemanticsLabelOther;
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@override
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String? datePickerMinuteSemanticsLabel(int minute) {
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return intl.Intl.pluralLogic(
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minute,
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zero: datePickerMinuteSemanticsLabelZero,
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one: datePickerMinuteSemanticsLabelOne,
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two: datePickerMinuteSemanticsLabelTwo,
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few: datePickerMinuteSemanticsLabelFew,
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many: datePickerMinuteSemanticsLabelMany,
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other: datePickerMinuteSemanticsLabelOther,
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locale: _localeName,
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)?.replaceFirst(r'$minute', _decimalFormat.format(minute));
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}
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/// A string describing the [DatePickerDateOrder] enum value.
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///
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/// Subclasses should provide this string value based on the ARB file for
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/// the locale.
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///
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/// See also:
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///
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/// * [datePickerDateOrder], which provides the [DatePickerDateOrder]
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/// enum value for [CupertinoLocalizations] based on this string value
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@protected
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String get datePickerDateOrderString;
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@override
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DatePickerDateOrder get datePickerDateOrder {
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switch (datePickerDateOrderString) {
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case 'dmy':
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return DatePickerDateOrder.dmy;
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case 'mdy':
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return DatePickerDateOrder.mdy;
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case 'ymd':
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return DatePickerDateOrder.ymd;
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case 'ydm':
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return DatePickerDateOrder.ydm;
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default:
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assert(
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false,
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'Failed to load DatePickerDateOrder $datePickerDateOrderString for '
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"locale $_localeName.\nNon conforming string for $_localeName's "
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'.arb file',
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);
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return DatePickerDateOrder.mdy;
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}
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}
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/// A string describing the [DatePickerDateTimeOrder] enum value.
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///
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/// Subclasses should provide this string value based on the ARB file for
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/// the locale.
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///
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/// See also:
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///
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/// * [datePickerDateTimeOrder], which provides the [DatePickerDateTimeOrder]
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/// enum value for [CupertinoLocalizations] based on this string value.
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@protected
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String get datePickerDateTimeOrderString;
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@override
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DatePickerDateTimeOrder get datePickerDateTimeOrder {
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switch (datePickerDateTimeOrderString) {
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case 'date_time_dayPeriod':
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return DatePickerDateTimeOrder.date_time_dayPeriod;
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case 'date_dayPeriod_time':
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return DatePickerDateTimeOrder.date_dayPeriod_time;
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case 'time_dayPeriod_date':
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return DatePickerDateTimeOrder.time_dayPeriod_date;
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case 'dayPeriod_time_date':
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return DatePickerDateTimeOrder.dayPeriod_time_date;
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default:
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assert(
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false,
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'Failed to load DatePickerDateTimeOrder $datePickerDateTimeOrderString '
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"for locale $_localeName.\nNon conforming string for $_localeName's "
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'.arb file',
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);
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return DatePickerDateTimeOrder.date_time_dayPeriod;
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}
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}
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/// The raw version of [tabSemanticsLabel], with `$tabIndex` and `$tabCount` verbatim
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/// in the string.
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@protected
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String get tabSemanticsLabelRaw;
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@override
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String tabSemanticsLabel({ required int tabIndex, required int tabCount }) {
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assert(tabIndex >= 1);
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assert(tabCount >= 1);
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final String template = tabSemanticsLabelRaw;
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return template
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.replaceFirst(r'$tabIndex', _decimalFormat.format(tabIndex))
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.replaceFirst(r'$tabCount', _decimalFormat.format(tabCount));
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}
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@override
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String timerPickerHour(int hour) {
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return _singleDigitHourFormat.format(DateTime.utc(0, 0, 0, hour));
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}
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@override
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String timerPickerMinute(int minute) {
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return _singleDigitMinuteFormat.format(DateTime.utc(0, 0, 0, 0, minute));
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}
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@override
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String timerPickerSecond(int second) {
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return _singleDigitSecondFormat.format(DateTime.utc(0, 0, 0, 0, 0, second));
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}
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/// Subclasses should provide the optional zero pluralization of [timerPickerHourLabel] based on the ARB file.
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@protected
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String? get timerPickerHourLabelZero => null;
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/// Subclasses should provide the optional one pluralization of [timerPickerHourLabel] based on the ARB file.
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@protected
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String? get timerPickerHourLabelOne => null;
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/// Subclasses should provide the optional two pluralization of [timerPickerHourLabel] based on the ARB file.
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@protected
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String? get timerPickerHourLabelTwo => null;
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/// Subclasses should provide the optional few pluralization of [timerPickerHourLabel] based on the ARB file.
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@protected
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String? get timerPickerHourLabelFew => null;
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/// Subclasses should provide the optional many pluralization of [timerPickerHourLabel] based on the ARB file.
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@protected
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String? get timerPickerHourLabelMany => null;
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/// Subclasses should provide the required other pluralization of [timerPickerHourLabel] based on the ARB file.
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@protected
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String? get timerPickerHourLabelOther;
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@override
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String? timerPickerHourLabel(int hour) {
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return intl.Intl.pluralLogic(
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hour,
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zero: timerPickerHourLabelZero,
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one: timerPickerHourLabelOne,
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two: timerPickerHourLabelTwo,
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few: timerPickerHourLabelFew,
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many: timerPickerHourLabelMany,
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other: timerPickerHourLabelOther,
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locale: _localeName,
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)?.replaceFirst(r'$hour', _decimalFormat.format(hour));
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}
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@override
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List<String> get timerPickerHourLabels => <String>[
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if (timerPickerHourLabelZero != null) timerPickerHourLabelZero!,
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if (timerPickerHourLabelOne != null) timerPickerHourLabelOne!,
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if (timerPickerHourLabelTwo != null) timerPickerHourLabelTwo!,
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if (timerPickerHourLabelFew != null) timerPickerHourLabelFew!,
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if (timerPickerHourLabelMany != null) timerPickerHourLabelMany!,
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if (timerPickerHourLabelOther != null) timerPickerHourLabelOther!,
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];
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/// Subclasses should provide the optional zero pluralization of [timerPickerMinuteLabel] based on the ARB file.
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@protected
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String? get timerPickerMinuteLabelZero => null;
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/// Subclasses should provide the optional one pluralization of [timerPickerMinuteLabel] based on the ARB file.
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@protected
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String? get timerPickerMinuteLabelOne => null;
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/// Subclasses should provide the optional two pluralization of [timerPickerMinuteLabel] based on the ARB file.
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@protected
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String? get timerPickerMinuteLabelTwo => null;
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/// Subclasses should provide the optional few pluralization of [timerPickerMinuteLabel] based on the ARB file.
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@protected
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String? get timerPickerMinuteLabelFew => null;
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/// Subclasses should provide the optional many pluralization of [timerPickerMinuteLabel] based on the ARB file.
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@protected
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String? get timerPickerMinuteLabelMany => null;
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/// Subclasses should provide the required other pluralization of [timerPickerMinuteLabel] based on the ARB file.
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@protected
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String? get timerPickerMinuteLabelOther;
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@override
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String? timerPickerMinuteLabel(int minute) {
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return intl.Intl.pluralLogic(
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minute,
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zero: timerPickerMinuteLabelZero,
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one: timerPickerMinuteLabelOne,
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two: timerPickerMinuteLabelTwo,
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few: timerPickerMinuteLabelFew,
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many: timerPickerMinuteLabelMany,
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other: timerPickerMinuteLabelOther,
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locale: _localeName,
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)?.replaceFirst(r'$minute', _decimalFormat.format(minute));
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}
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@override
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List<String> get timerPickerMinuteLabels => <String>[
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if (timerPickerMinuteLabelZero != null) timerPickerMinuteLabelZero!,
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if (timerPickerMinuteLabelOne != null) timerPickerMinuteLabelOne!,
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if (timerPickerMinuteLabelTwo != null) timerPickerMinuteLabelTwo!,
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if (timerPickerMinuteLabelFew != null) timerPickerMinuteLabelFew!,
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if (timerPickerMinuteLabelMany != null) timerPickerMinuteLabelMany!,
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if (timerPickerMinuteLabelOther != null) timerPickerMinuteLabelOther!,
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];
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/// Subclasses should provide the optional zero pluralization of [timerPickerSecondLabel] based on the ARB file.
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@protected
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String? get timerPickerSecondLabelZero => null;
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/// Subclasses should provide the optional one pluralization of [timerPickerSecondLabel] based on the ARB file.
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@protected
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String? get timerPickerSecondLabelOne => null;
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/// Subclasses should provide the optional two pluralization of [timerPickerSecondLabel] based on the ARB file.
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@protected
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String? get timerPickerSecondLabelTwo => null;
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/// Subclasses should provide the optional few pluralization of [timerPickerSecondLabel] based on the ARB file.
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@protected
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String? get timerPickerSecondLabelFew => null;
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/// Subclasses should provide the optional many pluralization of [timerPickerSecondLabel] based on the ARB file.
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@protected
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String? get timerPickerSecondLabelMany => null;
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/// Subclasses should provide the required other pluralization of [timerPickerSecondLabel] based on the ARB file.
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@protected
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String? get timerPickerSecondLabelOther;
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@override
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String? timerPickerSecondLabel(int second) {
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return intl.Intl.pluralLogic(
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second,
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zero: timerPickerSecondLabelZero,
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one: timerPickerSecondLabelOne,
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two: timerPickerSecondLabelTwo,
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few: timerPickerSecondLabelFew,
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many: timerPickerSecondLabelMany,
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other: timerPickerSecondLabelOther,
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locale: _localeName,
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)?.replaceFirst(r'$second', _decimalFormat.format(second));
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}
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@override
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List<String> get timerPickerSecondLabels => <String>[
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if (timerPickerSecondLabelZero != null) timerPickerSecondLabelZero!,
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if (timerPickerSecondLabelOne != null) timerPickerSecondLabelOne!,
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if (timerPickerSecondLabelTwo != null) timerPickerSecondLabelTwo!,
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if (timerPickerSecondLabelFew != null) timerPickerSecondLabelFew!,
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if (timerPickerSecondLabelMany != null) timerPickerSecondLabelMany!,
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if (timerPickerSecondLabelOther != null) timerPickerSecondLabelOther!,
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];
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/// A [LocalizationsDelegate] for [CupertinoLocalizations].
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///
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/// Most internationalized apps will use [GlobalCupertinoLocalizations.delegates]
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/// as the value of [CupertinoApp.localizationsDelegates] to include
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/// the localizations for both the cupertino and widget libraries.
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static const LocalizationsDelegate<CupertinoLocalizations> delegate = _GlobalCupertinoLocalizationsDelegate();
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/// A value for [CupertinoApp.localizationsDelegates] that's typically used by
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/// internationalized apps.
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///
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/// ## Sample code
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///
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/// To include the localizations provided by this class and by
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/// [GlobalWidgetsLocalizations] in a [CupertinoApp],
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/// use [GlobalCupertinoLocalizations.delegates] as the value of
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/// [CupertinoApp.localizationsDelegates], and specify the locales your
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/// app supports with [CupertinoApp.supportedLocales]:
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///
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/// ```dart
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/// const CupertinoApp(
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/// localizationsDelegates: GlobalCupertinoLocalizations.delegates,
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/// supportedLocales: <Locale>[
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/// Locale('en', 'US'), // English
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/// Locale('he', 'IL'), // Hebrew
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/// ],
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/// // ...
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/// )
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/// ```
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static const List<LocalizationsDelegate<dynamic>> delegates = <LocalizationsDelegate<dynamic>>[
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GlobalCupertinoLocalizations.delegate,
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GlobalWidgetsLocalizations.delegate,
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];
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}
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class _GlobalCupertinoLocalizationsDelegate extends LocalizationsDelegate<CupertinoLocalizations> {
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const _GlobalCupertinoLocalizationsDelegate();
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@override
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bool isSupported(Locale locale) => kCupertinoSupportedLanguages.contains(locale.languageCode);
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static final Map<Locale, Future<CupertinoLocalizations>> _loadedTranslations = <Locale, Future<CupertinoLocalizations>>{};
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@override
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Future<CupertinoLocalizations> load(Locale locale) {
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assert(isSupported(locale));
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return _loadedTranslations.putIfAbsent(locale, () {
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util.loadDateIntlDataIfNotLoaded();
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final String localeName = intl.Intl.canonicalizedLocale(locale.toString());
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assert(
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locale.toString() == localeName,
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'Flutter does not support the non-standard locale form $locale (which '
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'might be $localeName',
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);
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late intl.DateFormat fullYearFormat;
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late intl.DateFormat dayFormat;
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late intl.DateFormat mediumDateFormat;
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// We don't want any additional decoration here. The am/pm is handled in
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// the date picker. We just want an hour number localized.
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late intl.DateFormat singleDigitHourFormat;
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late intl.DateFormat singleDigitMinuteFormat;
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late intl.DateFormat doubleDigitMinuteFormat;
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late intl.DateFormat singleDigitSecondFormat;
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late intl.NumberFormat decimalFormat;
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void loadFormats(String? locale) {
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fullYearFormat = intl.DateFormat.y(locale);
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dayFormat = intl.DateFormat.d(locale);
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mediumDateFormat = intl.DateFormat.MMMEd(locale);
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// TODO(xster): fix when https://github.com/dart-lang/intl/issues/207 is resolved.
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singleDigitHourFormat = intl.DateFormat('HH', locale);
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singleDigitMinuteFormat = intl.DateFormat.m(locale);
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doubleDigitMinuteFormat = intl.DateFormat('mm', locale);
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singleDigitSecondFormat = intl.DateFormat.s(locale);
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decimalFormat = intl.NumberFormat.decimalPattern(locale);
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}
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if (intl.DateFormat.localeExists(localeName)) {
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loadFormats(localeName);
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} else if (intl.DateFormat.localeExists(locale.languageCode)) {
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loadFormats(locale.languageCode);
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} else {
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loadFormats(null);
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}
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return SynchronousFuture<CupertinoLocalizations>(getCupertinoTranslation(
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locale,
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fullYearFormat,
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dayFormat,
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mediumDateFormat,
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singleDigitHourFormat,
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singleDigitMinuteFormat,
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doubleDigitMinuteFormat,
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singleDigitSecondFormat,
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decimalFormat,
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)!);
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});
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}
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@override
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bool shouldReload(_GlobalCupertinoLocalizationsDelegate old) => false;
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@override
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String toString() => 'GlobalCupertinoLocalizations.delegate(${kCupertinoSupportedLanguages.length} locales)';
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}
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