Localizations overrides (#12094)
This commit is contained in:
Hans Muller
GitHub
parent
dc47238602
commit
9fb6fd81b9
@ -75,19 +75,15 @@ String generateLocalizationsMap() {
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/// This variable is used by [MaterialLocalizations].
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const Map<String, Map<String, String>> localizations = const <String, Map<String, String>> {''');
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final String lastLocale = localeToResources.keys.last;
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for (String locale in localeToResources.keys.toList()..sort()) {
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output.writeln(' "$locale": const <String, String>{');
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final Map<String, String> resources = localeToResources[locale];
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final String lastName = resources.keys.last;
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for (String name in resources.keys) {
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final String comma = name == lastName ? "" : ",";
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final String value = generateString(resources[name]);
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output.writeln(' "$name": $value$comma');
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output.writeln(' "$name": $value,');
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}
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final String comma = locale == lastLocale ? "" : ",";
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output.writeln(' }$comma');
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output.writeln(' },');
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}
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output.writeln('};');
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@ -234,6 +234,61 @@ class MaterialApp extends StatefulWidget {
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///
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/// The delegates collectively define all of the localized resources
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/// for this application's [Localizations] widget.
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///
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/// Delegates that produce [WidgetsLocalizations] and [MaterialLocalizations]
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/// are included automatically. Apps can provide their own versions of these
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/// localizations by creating implementations of
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/// [LocalizationsDelegate<WidgetLocalizations>] or
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/// [LocalizationsDelegate<MaterialLocalizations>] whose load methods return
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/// custom versions of [WidgetLocalizations] or [MaterialLocalizations].
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///
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/// For example: to add support to [MaterialLocalizations] for a
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/// locale it doesn't already support, say `const Locale('foo', 'BR')`,
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/// one could just extend [DefaultMaterialLocalizations]:
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///
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/// ```dart
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/// class FooLocalizations extends DefaultMaterialLocalizations {
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/// FooLocalizations(Locale locale) : super(locale);
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/// @override
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/// String get okButtonLabel {
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/// if (locale == const Locale('foo', 'BR'))
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/// return 'foo';
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/// return super.okButtonLabel;
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/// }
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/// }
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///
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/// ```
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///
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/// A `FooLocalizationsDelegate` is essentially just a method that constructs
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/// a `FooLocalizations` object. We return a [SynchronousFuture] here because
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/// no asynchronous work takes place upon "loading" the localizations object.
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///
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/// ```dart
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/// class FooLocalizationsDelegate extends LocalizationsDelegate<MaterialLocalizations> {
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/// const FooLocalizationsDelegate();
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/// @override
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/// Future<FooLocalizations> load(Locale locale) {
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/// return new SynchronousFuture(new FooLocalizations(locale));
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/// }
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/// @override
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/// bool shouldReload(FooLocalizationsDelegate old) => false;
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/// }
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/// ```
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///
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/// Constructing a [MaterialApp] with a `FooLocalizationsDelegate` overrides
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/// the automatically included delegate for [MaterialLocalizations] because
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/// only the first delegate of each [LocalizationsDelegate.type] is used and
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/// the automatically included delegates are added to the end of the app's
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/// [localizationsDelegates] list.
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///
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/// ```dart
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/// new MaterialApp(
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/// localizationsDelegates: [
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/// const FooLocalizationsDelegate(),
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/// ],
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/// // ...
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/// )
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/// ```
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final Iterable<LocalizationsDelegate<dynamic>> localizationsDelegates;
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/// This callback is responsible for choosing the app's locale
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@ -379,11 +434,14 @@ class _MaterialAppState extends State<MaterialApp> {
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}
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// Combine the Localizations for Material with the ones contributed
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// by the localizationsDelegates parameter, if any.
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// by the localizationsDelegates parameter, if any. Only the first delegate
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// of a particular LocalizationsDelegate.type is loaded so the
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// localizationsDelegate parameter can be used to override
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// _MaterialLocalizationsDelegate.
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Iterable<LocalizationsDelegate<dynamic>> get _localizationsDelegates sync* {
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yield const _MaterialLocalizationsDelegate(); // TODO(ianh): make this configurable
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if (widget.localizationsDelegates != null)
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yield* widget.localizationsDelegates;
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yield const _MaterialLocalizationsDelegate();
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}
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RectTween _createRectTween(Rect begin, Rect end) {
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@ -4,7 +4,7 @@
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// This file has been automatically generated. Please do not edit it manually.
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// To regenerate the file, use:
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// dart dev/tools/gen_localizations.dart lib/src/material/i18n material
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// dart dev/tools/gen_localizations.dart packages/flutter/lib/src/material/i18n material
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/// Maps from [Locale.languageCode] to a map that contains the localized strings
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/// for that locale.
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@ -36,7 +36,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"selectAllButtonLabel": r"اختر الكل",
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"viewLicensesButtonLabel": r"عرض التراخيص",
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"anteMeridiemAbbreviation": r"ص",
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"postMeridiemAbbreviation": r"م"
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"postMeridiemAbbreviation": r"م",
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},
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"de": const <String, String>{
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"timeOfDayFormat": r"HH:mm",
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@ -63,7 +63,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"OK",
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"pasteButtonLabel": r"EINFÜGEN",
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"selectAllButtonLabel": r"ALLES AUSWÄHLEN",
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"viewLicensesButtonLabel": r"LIZENZEN ANZEIGEN"
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"viewLicensesButtonLabel": r"LIZENZEN ANZEIGEN",
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},
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"en": const <String, String>{
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"timeOfDayFormat": r"h:mm a",
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@ -92,16 +92,16 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"selectAllButtonLabel": r"SELECT ALL",
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"viewLicensesButtonLabel": r"VIEW LICENSES",
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"anteMeridiemAbbreviation": r"AM",
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"postMeridiemAbbreviation": r"PM"
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"postMeridiemAbbreviation": r"PM",
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},
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"en_GB": const <String, String>{
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"timeOfDayFormat": r"HH:mm"
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"timeOfDayFormat": r"HH:mm",
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},
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"en_IE": const <String, String>{
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"timeOfDayFormat": r"HH:mm"
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"timeOfDayFormat": r"HH:mm",
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},
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"en_ZA": const <String, String>{
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"timeOfDayFormat": r"HH:mm"
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"timeOfDayFormat": r"HH:mm",
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},
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"es": const <String, String>{
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"timeOfDayFormat": r"H:mm",
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@ -128,10 +128,10 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"OK",
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"pasteButtonLabel": r"PEGAR",
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"selectAllButtonLabel": r"SELECCIONAR TODO",
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"viewLicensesButtonLabel": r"VER LICENCIAS"
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"viewLicensesButtonLabel": r"VER LICENCIAS",
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},
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"es_US": const <String, String>{
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"timeOfDayFormat": r"h:mm a"
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"timeOfDayFormat": r"h:mm a",
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},
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"fa": const <String, String>{
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"timeOfDayFormat": r"H:mm",
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@ -156,7 +156,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"تایید",
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"pasteButtonLabel": r"چسباندن",
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"selectAllButtonLabel": r"انتخاب همه",
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"viewLicensesButtonLabel": r"مشاهده مجوز"
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"viewLicensesButtonLabel": r"مشاهده مجوز",
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},
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"fr": const <String, String>{
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"timeOfDayFormat": r"HH:mm",
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@ -183,10 +183,10 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"OK",
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"pasteButtonLabel": r"COLLER",
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"selectAllButtonLabel": r"TOUT SÉLECTIONNER",
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"viewLicensesButtonLabel": r"AFFICHER LES LICENCES"
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"viewLicensesButtonLabel": r"AFFICHER LES LICENCES",
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},
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"fr_CA": const <String, String>{
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"timeOfDayFormat": r"HH 'h' mm"
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"timeOfDayFormat": r"HH 'h' mm",
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},
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"he": const <String, String>{
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"timeOfDayFormat": r"H:mm",
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@ -211,7 +211,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"בסדר",
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"pasteButtonLabel": r"הדבק",
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"selectAllButtonLabel": r"בחר הכל",
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"viewLicensesButtonLabel": r"ראה רישיונות"
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"viewLicensesButtonLabel": r"ראה רישיונות",
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},
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"it": const <String, String>{
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"timeOfDayFormat": r"HH:mm",
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@ -236,7 +236,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"OK",
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"pasteButtonLabel": r"INCOLLA",
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"selectAllButtonLabel": r"SELEZIONA TUTTO",
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"viewLicensesButtonLabel": r"VEDI LE LICENZE"
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"viewLicensesButtonLabel": r"VEDI LE LICENZE",
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},
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"ja": const <String, String>{
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"timeOfDayFormat": r"H:mm",
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@ -261,7 +261,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"OK",
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"pasteButtonLabel": r"貼付け",
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"selectAllButtonLabel": r"全選択",
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"viewLicensesButtonLabel": r"ライセンス表記"
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"viewLicensesButtonLabel": r"ライセンス表記",
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},
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"ps": const <String, String>{
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"timeOfDayFormat": r"HH:mm",
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@ -286,7 +286,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"سمه ده",
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"pasteButtonLabel": r"پیټ کړئ",
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"selectAllButtonLabel": r"غوره کړئ",
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"viewLicensesButtonLabel": r"لیدلس وګورئ"
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"viewLicensesButtonLabel": r"لیدلس وګورئ",
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},
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"pt": const <String, String>{
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"timeOfDayFormat": r"HH:mm",
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@ -311,7 +311,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"OK",
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"pasteButtonLabel": r"COLAR",
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"selectAllButtonLabel": r"SELECIONAR TUDO",
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"viewLicensesButtonLabel": r"VER LICENÇAS"
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"viewLicensesButtonLabel": r"VER LICENÇAS",
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},
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"ru": const <String, String>{
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"timeOfDayFormat": r"H:mm",
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@ -336,7 +336,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"ОК",
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"pasteButtonLabel": r"Паст",
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"selectAllButtonLabel": r"Выбрать все",
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"viewLicensesButtonLabel": r"ПРОСМОТРЕТЬ ЛИЦЕНЗИИ"
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"viewLicensesButtonLabel": r"ПРОСМОТРЕТЬ ЛИЦЕНЗИИ",
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},
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"sd": const <String, String>{
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"timeOfDayFormat": r"HH:mm",
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@ -361,7 +361,7 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"okButtonLabel": r"ٺيڪ آهي",
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"pasteButtonLabel": r"پيسٽ ڪريو",
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"selectAllButtonLabel": r"سڀ چونڊيو",
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"viewLicensesButtonLabel": r"لائسنس ڏسو"
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"viewLicensesButtonLabel": r"لائسنس ڏسو",
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},
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"ur": const <String, String>{
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"timeOfDayFormat": r"h:mm a",
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@ -388,12 +388,12 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"selectAllButtonLabel": r"تکاپیمام منتخب کریں",
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"viewLicensesButtonLabel": r"لائسنس دیکھیں",
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"anteMeridiemAbbreviation": r"AM",
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"postMeridiemAbbreviation": r"PM"
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"postMeridiemAbbreviation": r"PM",
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},
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"zh": const <String, String>{
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"timeOfDayFormat": r"ah:mm",
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"openAppDrawerTooltip": r"打开导航菜单",
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"backButtonTooltip": r"背部",
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"backButtonTooltip": r"返回",
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"closeButtonTooltip": r"关",
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"nextMonthTooltip": r"-下月就29了。",
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"previousMonthTooltip": r"前一个月",
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@ -415,7 +415,6 @@ const Map<String, Map<String, String>> localizations = const <String, Map<String
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"selectAllButtonLabel": r"全选",
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"viewLicensesButtonLabel": r"查看许可证",
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"anteMeridiemAbbreviation": r"上午",
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"postMeridiemAbbreviation": r"下午"
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}
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"postMeridiemAbbreviation": r"下午",
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},
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};
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@ -22,7 +22,6 @@
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"pasteButtonLabel": "粘贴",
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"selectAllButtonLabel": "全选",
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"viewLicensesButtonLabel": "查看许可证",
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"backButtonTooltip": "背部",
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"closeButtonTooltip": "关",
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"nextMonthTooltip": "-下月就29了。",
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"previousMonthTooltip": "前一个月",
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@ -116,24 +116,20 @@ class DefaultMaterialLocalizations implements MaterialLocalizations {
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///
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/// [LocalizationsDelegate] implementations typically call the static [load]
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/// function, rather than constructing this class directly.
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factory DefaultMaterialLocalizations(Locale locale) {
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DefaultMaterialLocalizations(this.locale) {
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assert(locale != null);
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final Map<String, String> result = <String, String>{};
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if (localizations.containsKey(locale.languageCode))
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result.addAll(localizations[locale.languageCode]);
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if (localizations.containsKey(locale.toString()))
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result.addAll(localizations[locale.toString()]);
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return new DefaultMaterialLocalizations._(locale, result);
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_nameToValue.addAll(localizations[locale.languageCode]);
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if (localizations.containsKey(_localeName))
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_nameToValue.addAll(localizations[_localeName]);
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}
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DefaultMaterialLocalizations._(this.locale, this._nameToValue);
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/// The locale for which the values of this class's localized resources
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/// have been translated.
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final Locale locale;
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final Map<String, String> _nameToValue;
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final Map<String, String> _nameToValue = <String, String>{};
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String get _localeName {
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final String localeName = locale.countryCode.isEmpty ? locale.languageCode : locale.toString();
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@ -383,11 +383,14 @@ class _WidgetsAppState extends State<WidgetsApp> implements WidgetsBindingObserv
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}
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// Combine the Localizations for Widgets with the ones contributed
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// by the localizationsDelegates parameter, if any.
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// by the localizationsDelegates parameter, if any. Only the first delegate
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// of a particular LocalizationsDelegate.type is loaded so the
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// localizationsDelegate parameter can be used to override
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// _WidgetsLocalizationsDelegate.
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Iterable<LocalizationsDelegate<dynamic>> get _localizationsDelegates sync* {
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yield const _WidgetsLocalizationsDelegate(); // TODO(ianh): make this configurable
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if (widget.localizationsDelegates != null)
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yield* widget.localizationsDelegates;
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yield const _WidgetsLocalizationsDelegate();
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}
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@override
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@ -38,10 +38,20 @@ class _Pending {
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// This is more complicated than just applying Future.wait to input
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// because some of the input.values may be SynchronousFutures. We don't want
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// to Future.wait for the synchronous futures.
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Future<Map<Type, dynamic>> _loadAll(Locale locale, Iterable<LocalizationsDelegate<dynamic>> delegates) {
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Future<Map<Type, dynamic>> _loadAll(Locale locale, Iterable<LocalizationsDelegate<dynamic>> allDelegates) {
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final Map<Type, dynamic> output = <Type, dynamic>{};
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List<_Pending> pendingList;
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// Only load the first delegate for each delgate type.
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final Set<Type> types = new Set<Type>();
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final List<LocalizationsDelegate<dynamic>> delegates = <LocalizationsDelegate<dynamic>>[];
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for (LocalizationsDelegate<dynamic> delegate in allDelegates) {
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if (!types.contains(delegate.type)) {
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types.add(delegate.type);
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delegates.add(delegate);
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}
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}
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for (LocalizationsDelegate<dynamic> delegate in delegates) {
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final Future<dynamic> inputValue = delegate.load(locale);
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dynamic completedValue;
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@ -227,6 +237,9 @@ class _LocalizationsScope extends InheritedWidget {
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/// class _MyDelegate extends LocalizationsDelegate<MyLocalizations> {
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/// @override
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/// Future<MyLocalizations> load(Locale locale) => MyLocalizations.load(locale);
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///
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/// @override
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/// bool shouldReload(MyLocalizationsDelegate old) => false;
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///}
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/// ```
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///
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@ -298,8 +311,7 @@ class _LocalizationsScope extends InheritedWidget {
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/// One could choose another approach for loading localized resources and looking them up while
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/// still conforming to the structure of this example.
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class Localizations extends StatefulWidget {
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/// Create a widget from which ambient localizations (translated strings)
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/// can be obtained.
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/// Create a widget from which localizations (like translated strings) can be obtained.
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Localizations({
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Key key,
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@required this.locale,
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@ -311,6 +323,51 @@ class Localizations extends StatefulWidget {
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assert(delegates.any((LocalizationsDelegate<dynamic> delegate) => delegate is LocalizationsDelegate<WidgetsLocalizations>));
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}
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/// Overrides the inherited [Locale] or [LocalizationsDelegate]s for `child`.
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///
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/// This factory constructor is used for the (usually rare) situtation where part
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/// of an app should be localized for a different locale than the one defined
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/// for the device, or if its localizations should come from a different list
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/// of [LocalizationsDelegate]s than the list defined by
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/// [WidgetsApp.localizationsDelegates].
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///
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/// For example you could specify that `myWidget` was only to be localized for
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/// the US English locale:
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///
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/// ```dart
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/// Widget build(BuildContext context) {
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/// return new Localizations.override(
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/// context: context,
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/// locale: const Locale('en', 'US'),
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/// child: myWidget,
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/// );
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/// }
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/// ```
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///
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/// The `locale` and `delegates` parameters default to the [Localizations.locale]
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/// and [Localizations.delegates] values from the nearest [Localizations] ancestor.
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///
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/// To override the [Localizations.locale] or [Localizations.delegates] for an
|
||||
/// entire app, specify [WidgetsApp.locale] or [WidgetsApp.localizationsDelegates]
|
||||
/// (or specify the same parameters for [MaterialApp]).
|
||||
factory Localizations.override({
|
||||
Key key,
|
||||
@required BuildContext context,
|
||||
Locale locale,
|
||||
List<LocalizationsDelegate<dynamic>> delegates,
|
||||
Widget child,
|
||||
}) {
|
||||
final List<LocalizationsDelegate<dynamic>> mergedDelegates = Localizations._delegatesOf(context);
|
||||
if (delegates != null)
|
||||
mergedDelegates.insertAll(0, delegates);
|
||||
return new Localizations(
|
||||
key: key,
|
||||
locale: locale ?? Localizations.localeOf(context),
|
||||
delegates: mergedDelegates,
|
||||
child: child,
|
||||
);
|
||||
}
|
||||
|
||||
/// The resources returned by [Localizations.of] will be specific to this locale.
|
||||
final Locale locale;
|
||||
|
||||
@ -326,9 +383,19 @@ class Localizations extends StatefulWidget {
|
||||
static Locale localeOf(BuildContext context) {
|
||||
assert(context != null);
|
||||
final _LocalizationsScope scope = context.inheritFromWidgetOfExactType(_LocalizationsScope);
|
||||
assert(scope != null, 'a Localizations ancestor was not found');
|
||||
return scope.localizationsState.locale;
|
||||
}
|
||||
|
||||
// There doesn't appear to be a need to make this public. See the
|
||||
// Localizations.override factory constructor.
|
||||
static List<LocalizationsDelegate<dynamic>> _delegatesOf(BuildContext context) {
|
||||
assert(context != null);
|
||||
final _LocalizationsScope scope = context.inheritFromWidgetOfExactType(_LocalizationsScope);
|
||||
assert(scope != null, 'a Localizations ancestor was not found');
|
||||
return new List<LocalizationsDelegate<dynamic>>.from(scope.localizationsState.widget.delegates);
|
||||
}
|
||||
|
||||
/// Returns the 'type' localized resources for the widget tree that
|
||||
/// corresponds to [BuildContext] `context`.
|
||||
///
|
||||
@ -345,6 +412,7 @@ class Localizations extends StatefulWidget {
|
||||
assert(context != null);
|
||||
assert(type != null);
|
||||
final _LocalizationsScope scope = context.inheritFromWidgetOfExactType(_LocalizationsScope);
|
||||
assert(scope != null, 'a Localizations ancestor was not found');
|
||||
return scope.localizationsState.resourcesFor<T>(type);
|
||||
}
|
||||
|
||||
|
||||
@ -3,11 +3,33 @@
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter_test/flutter_test.dart';
|
||||
|
||||
class FooMaterialLocalizations extends DefaultMaterialLocalizations {
|
||||
FooMaterialLocalizations(Locale locale) : super(locale);
|
||||
|
||||
@override
|
||||
String get backButtonTooltip => 'foo';
|
||||
}
|
||||
|
||||
class FooMaterialLocalizationsDelegate extends LocalizationsDelegate<MaterialLocalizations> {
|
||||
const FooMaterialLocalizationsDelegate();
|
||||
|
||||
@override
|
||||
Future<FooMaterialLocalizations> load(Locale locale) {
|
||||
return new SynchronousFuture<FooMaterialLocalizations>(new FooMaterialLocalizations(locale));
|
||||
}
|
||||
|
||||
@override
|
||||
bool shouldReload(FooMaterialLocalizationsDelegate old) => false;
|
||||
}
|
||||
|
||||
Widget buildFrame({
|
||||
Locale locale,
|
||||
Iterable<LocalizationsDelegate<dynamic>> delegates,
|
||||
WidgetBuilder buildContent,
|
||||
LocaleResolutionCallback localeResolutionCallback,
|
||||
Iterable<Locale> supportedLocales: const <Locale>[
|
||||
const Locale('en', 'US'),
|
||||
const Locale('es', 'es'),
|
||||
@ -16,6 +38,8 @@ Widget buildFrame({
|
||||
return new MaterialApp(
|
||||
color: const Color(0xFFFFFFFF),
|
||||
locale: locale,
|
||||
localizationsDelegates: delegates,
|
||||
localeResolutionCallback: localeResolutionCallback,
|
||||
supportedLocales: supportedLocales,
|
||||
onGenerateRoute: (RouteSettings settings) {
|
||||
return new MaterialPageRoute<Null>(
|
||||
@ -133,6 +157,101 @@ void main() {
|
||||
expect(localizations.selectedRowCountTitle(123456789), '123.456.789 artículos seleccionados');
|
||||
});
|
||||
|
||||
testWidgets('Localizations.override widget tracks parent\'s locale', (WidgetTester tester) async {
|
||||
Widget buildLocaleFrame(Locale locale) {
|
||||
return buildFrame(
|
||||
locale: locale,
|
||||
buildContent: (BuildContext context) {
|
||||
return new Localizations.override(
|
||||
context: context,
|
||||
child: new Builder(
|
||||
builder: (BuildContext context) {
|
||||
// No MaterialLocalizations are defined for the first Localizations
|
||||
// ancestor, so we should get the values from the default one, i.e.
|
||||
// the one created by WidgetsApp via the LocalizationsDelegate
|
||||
// provided by MaterialApp.
|
||||
return new Text(MaterialLocalizations.of(context).backButtonTooltip);
|
||||
},
|
||||
),
|
||||
);
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
await tester.pumpWidget(buildLocaleFrame(const Locale('en', 'US')));
|
||||
expect(find.text('Back'), findsOneWidget);
|
||||
|
||||
await tester.pumpWidget(buildLocaleFrame(const Locale('de', 'DE')));
|
||||
expect(find.text('Zurück'), findsOneWidget);
|
||||
|
||||
await tester.pumpWidget(buildLocaleFrame(const Locale('zh', 'CN')));
|
||||
expect(find.text('返回'), findsOneWidget);
|
||||
});
|
||||
|
||||
testWidgets('Localizations.override widget with hardwired locale', (WidgetTester tester) async {
|
||||
Widget buildLocaleFrame(Locale locale) {
|
||||
return buildFrame(
|
||||
locale: locale,
|
||||
buildContent: (BuildContext context) {
|
||||
return new Localizations.override(
|
||||
context: context,
|
||||
locale: const Locale('en', 'US'),
|
||||
child: new Builder(
|
||||
builder: (BuildContext context) {
|
||||
// No MaterialLocalizations are defined for the Localizations.override
|
||||
// ancestor, so we should get all values from the default one, i.e.
|
||||
// the one created by WidgetsApp via the LocalizationsDelegate
|
||||
// provided by MaterialApp.
|
||||
return new Text(MaterialLocalizations.of(context).backButtonTooltip);
|
||||
},
|
||||
),
|
||||
);
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
await tester.pumpWidget(buildLocaleFrame(const Locale('en', 'US')));
|
||||
expect(find.text('Back'), findsOneWidget);
|
||||
|
||||
await tester.pumpWidget(buildLocaleFrame(const Locale('de', 'DE')));
|
||||
expect(find.text('Back'), findsOneWidget);
|
||||
|
||||
await tester.pumpWidget(buildLocaleFrame(const Locale('zh', 'CN')));
|
||||
expect(find.text('Back'), findsOneWidget);
|
||||
});
|
||||
|
||||
testWidgets('MaterialApp overrides MaterialLocalizations', (WidgetTester tester) async {
|
||||
final Key textKey = new UniqueKey();
|
||||
|
||||
await tester.pumpWidget(
|
||||
buildFrame(
|
||||
// Accept whatever locale we're given
|
||||
localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) => locale,
|
||||
delegates: <FooMaterialLocalizationsDelegate>[
|
||||
const FooMaterialLocalizationsDelegate(),
|
||||
],
|
||||
buildContent: (BuildContext context) {
|
||||
// Should always be 'foo', no matter what the locale is
|
||||
return new Text(
|
||||
MaterialLocalizations.of(context).backButtonTooltip,
|
||||
key: textKey,
|
||||
);
|
||||
}
|
||||
)
|
||||
);
|
||||
|
||||
expect(tester.widget<Text>(find.byKey(textKey)).data, 'foo');
|
||||
|
||||
await tester.binding.setLocale('zh', 'CN');
|
||||
await tester.pump();
|
||||
expect(find.text('foo'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('de', 'DE');
|
||||
await tester.pump();
|
||||
expect(find.text('foo'), findsOneWidget);
|
||||
|
||||
});
|
||||
|
||||
testWidgets('deprecated Android/Java locales are modernized', (WidgetTester tester) async {
|
||||
final Key textKey = new UniqueKey();
|
||||
|
||||
|
||||
@ -103,6 +103,36 @@ class AsyncMoreLocalizationsDelegate extends LocalizationsDelegate<MoreLocalizat
|
||||
bool shouldReload(AsyncMoreLocalizationsDelegate old) => false;
|
||||
}
|
||||
|
||||
// Same as _WidgetsLocalizationsDelegate in widgets/app.dart
|
||||
class DefaultWidgetsLocalizationsDelegate extends LocalizationsDelegate<WidgetsLocalizations> {
|
||||
const DefaultWidgetsLocalizationsDelegate();
|
||||
|
||||
@override
|
||||
Future<WidgetsLocalizations> load(Locale locale) => DefaultWidgetsLocalizations.load(locale);
|
||||
|
||||
@override
|
||||
bool shouldReload(DefaultWidgetsLocalizationsDelegate old) => false;
|
||||
}
|
||||
|
||||
class OnlyRTLDefaultWidgetsLocalizations extends DefaultWidgetsLocalizations {
|
||||
OnlyRTLDefaultWidgetsLocalizations(Locale locale) : super(locale);
|
||||
|
||||
@override
|
||||
TextDirection get textDirection => TextDirection.rtl;
|
||||
}
|
||||
|
||||
class OnlyRTLDefaultWidgetsLocalizationsDelegate extends LocalizationsDelegate<WidgetsLocalizations> {
|
||||
const OnlyRTLDefaultWidgetsLocalizationsDelegate();
|
||||
|
||||
@override
|
||||
Future<WidgetsLocalizations> load(Locale locale) {
|
||||
return new SynchronousFuture<WidgetsLocalizations>(new OnlyRTLDefaultWidgetsLocalizations(locale));
|
||||
}
|
||||
|
||||
@override
|
||||
bool shouldReload(OnlyRTLDefaultWidgetsLocalizationsDelegate old) => false;
|
||||
}
|
||||
|
||||
Widget buildFrame({
|
||||
Locale locale,
|
||||
Iterable<LocalizationsDelegate<dynamic>> delegates,
|
||||
@ -504,15 +534,116 @@ void main() {
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('zh_CN'), findsOneWidget);
|
||||
});
|
||||
|
||||
testWidgets('Localizations.override widget tracks parent\'s locale and delegates', (WidgetTester tester) async {
|
||||
await tester.pumpWidget(
|
||||
buildFrame(
|
||||
// Accept whatever locale we're given
|
||||
localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) => locale,
|
||||
buildContent: (BuildContext context) {
|
||||
return new Localizations.override(
|
||||
context: context,
|
||||
child: new Builder(
|
||||
builder: (BuildContext context) {
|
||||
final Locale locale = Localizations.localeOf(context);
|
||||
final TextDirection direction = WidgetsLocalizations.of(context).textDirection;
|
||||
return new Text('$locale $direction');
|
||||
},
|
||||
),
|
||||
);
|
||||
}
|
||||
)
|
||||
);
|
||||
|
||||
// Same as _WidgetsLocalizationsDelegate in widgets/app.dart
|
||||
class DefaultWidgetsLocalizationsDelegate extends LocalizationsDelegate<WidgetsLocalizations> {
|
||||
const DefaultWidgetsLocalizationsDelegate();
|
||||
// Initial WidgetTester locale is new Locale('', '')
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('_ TextDirection.ltr'), findsOneWidget);
|
||||
|
||||
@override
|
||||
Future<WidgetsLocalizations> load(Locale locale) => DefaultWidgetsLocalizations.load(locale);
|
||||
await tester.binding.setLocale('en', 'CA');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('en_CA TextDirection.ltr'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('ar', 'EG');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('ar_EG TextDirection.rtl'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('da', 'DA');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('da_DA TextDirection.ltr'), findsOneWidget);
|
||||
});
|
||||
|
||||
testWidgets('Localizations.override widget overrides parent\'s DefaultWidgetLocalizations', (WidgetTester tester) async {
|
||||
await tester.pumpWidget(
|
||||
buildFrame(
|
||||
// Accept whatever locale we're given
|
||||
localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) => locale,
|
||||
buildContent: (BuildContext context) {
|
||||
return new Localizations.override(
|
||||
context: context,
|
||||
delegates: <OnlyRTLDefaultWidgetsLocalizationsDelegate>[
|
||||
// Override: no matter what the locale, textDirection is always RTL.
|
||||
const OnlyRTLDefaultWidgetsLocalizationsDelegate(),
|
||||
],
|
||||
child: new Builder(
|
||||
builder: (BuildContext context) {
|
||||
final Locale locale = Localizations.localeOf(context);
|
||||
final TextDirection direction = WidgetsLocalizations.of(context).textDirection;
|
||||
return new Text('$locale $direction');
|
||||
},
|
||||
),
|
||||
);
|
||||
}
|
||||
)
|
||||
);
|
||||
|
||||
// Initial WidgetTester locale is new Locale('', '')
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('_ TextDirection.rtl'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('en', 'CA');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('en_CA TextDirection.rtl'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('ar', 'EG');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('ar_EG TextDirection.rtl'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('da', 'DA');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('da_DA TextDirection.rtl'), findsOneWidget);
|
||||
});
|
||||
|
||||
testWidgets('WidgetsApp overrides DefaultWidgetLocalizations', (WidgetTester tester) async {
|
||||
await tester.pumpWidget(
|
||||
buildFrame(
|
||||
// Accept whatever locale we're given
|
||||
localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) => locale,
|
||||
delegates: <OnlyRTLDefaultWidgetsLocalizationsDelegate>[
|
||||
const OnlyRTLDefaultWidgetsLocalizationsDelegate(),
|
||||
],
|
||||
buildContent: (BuildContext context) {
|
||||
final Locale locale = Localizations.localeOf(context);
|
||||
final TextDirection direction = WidgetsLocalizations.of(context).textDirection;
|
||||
return new Text('$locale $direction');
|
||||
}
|
||||
)
|
||||
);
|
||||
|
||||
// Initial WidgetTester locale is new Locale('', '')
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('_ TextDirection.rtl'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('en', 'CA');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('en_CA TextDirection.rtl'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('ar', 'EG');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('ar_EG TextDirection.rtl'), findsOneWidget);
|
||||
|
||||
await tester.binding.setLocale('da', 'DA');
|
||||
await tester.pumpAndSettle();
|
||||
expect(find.text('da_DA TextDirection.rtl'), findsOneWidget);
|
||||
});
|
||||
|
||||
@override
|
||||
bool shouldReload(DefaultWidgetsLocalizationsDelegate old) => false;
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user