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refactor: improve locale management and initialization in LocaleBloc and LocalizationModule

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This commit is contained in:
Achintha Isuru
2026-01-28 10:09:43 -05:00
parent f5c2c0757d
commit ed588e0ec7
3 changed files with 35 additions and 27 deletions
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36
apps/mobile/apps/staff/lib/main.dart
View File

@@ -36,28 +36,30 @@ class AppWidget extends StatelessWidget {
Widget build(BuildContext context) { Widget build(BuildContext context) {
return BlocProvider<core_localization.LocaleBloc>( return BlocProvider<core_localization.LocaleBloc>(
create: (BuildContext context) => create: (BuildContext context) =>
Modular.get<core_localization.LocaleBloc>() Modular.get<core_localization.LocaleBloc>(),
..add(const core_localization.LoadLocale()),
child: child:
BlocBuilder< BlocBuilder<
core_localization.LocaleBloc, core_localization.LocaleBloc,
core_localization.LocaleState core_localization.LocaleState
>( >(
builder: (BuildContext context, core_localization.LocaleState state) { builder:
return core_localization.TranslationProvider( (BuildContext context, core_localization.LocaleState state) {
child: MaterialApp.router( return core_localization.TranslationProvider(
title: "KROW Staff", child: MaterialApp.router(
theme: UiTheme.light, title: "KROW Staff",
routerConfig: Modular.routerConfig, theme: UiTheme.light,
locale: state.locale, routerConfig: Modular.routerConfig,
supportedLocales: state.supportedLocales, locale: state.locale,
localizationsDelegates: const <LocalizationsDelegate<dynamic>>[ supportedLocales: state.supportedLocales,
GlobalMaterialLocalizations.delegate, localizationsDelegates:
GlobalWidgetsLocalizations.delegate, const <LocalizationsDelegate<dynamic>>[
GlobalCupertinoLocalizations.delegate, GlobalMaterialLocalizations.delegate,
], GlobalWidgetsLocalizations.delegate,
)); GlobalCupertinoLocalizations.delegate,
}, ],
),
);
},
), ),
); );
} }

16
apps/mobile/packages/core_localization/lib/src/bloc/locale_bloc.dart
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@@ -11,23 +11,29 @@ import 'locale_state.dart';
/// It coordinates the flow between user language requests and persistent storage /// It coordinates the flow between user language requests and persistent storage
/// using [SetLocaleUseCase] and [GetLocaleUseCase]. /// using [SetLocaleUseCase] and [GetLocaleUseCase].
class LocaleBloc extends Bloc<LocaleEvent, LocaleState> { class LocaleBloc extends Bloc<LocaleEvent, LocaleState> {
final GetLocaleUseCase getLocaleUseCase;
final SetLocaleUseCase setLocaleUseCase;
/// Creates a [LocaleBloc] with the required use cases. /// Creates a [LocaleBloc] with the required use cases.
LocaleBloc({required this.getLocaleUseCase, required this.setLocaleUseCase}) LocaleBloc({required this.getLocaleUseCase, required this.setLocaleUseCase})
: super(LocaleState.initial()) { : super(LocaleState.initial()) {
on<ChangeLocale>(_onChangeLocale); on<ChangeLocale>(_onChangeLocale);
on<LoadLocale>(_onLoadLocale); on<LoadLocale>(_onLoadLocale);
/// Initial event
add(const LoadLocale());
} }
/// Use case for retrieving the saved locale.
final GetLocaleUseCase getLocaleUseCase;
/// Use case for saving the selected locale.
final SetLocaleUseCase setLocaleUseCase;
/// Handles the [ChangeLocale] event by saving it via the use case and emitting new state. /// Handles the [ChangeLocale] event by saving it via the use case and emitting new state.
Future<void> _onChangeLocale( Future<void> _onChangeLocale(
ChangeLocale event, ChangeLocale event,
Emitter<LocaleState> emit, Emitter<LocaleState> emit,
) async { ) async {
// 1. Update slang settings // 1. Update slang settings
LocaleSettings.setLocaleRaw(event.locale.languageCode); await LocaleSettings.setLocaleRaw(event.locale.languageCode);
// 2. Persist using Use Case // 2. Persist using Use Case
await setLocaleUseCase(event.locale); await setLocaleUseCase(event.locale);
@@ -47,7 +53,7 @@ class LocaleBloc extends Bloc<LocaleEvent, LocaleState> {
Emitter<LocaleState> emit, Emitter<LocaleState> emit,
) async { ) async {
final Locale? savedLocale = await getLocaleUseCase(); final Locale? savedLocale = await getLocaleUseCase();
final Locale locale = const Locale('es'); final Locale locale = savedLocale ?? const Locale('es');
LocaleSettings.setLocaleRaw(locale.languageCode); LocaleSettings.setLocaleRaw(locale.languageCode);

10
apps/mobile/packages/core_localization/lib/src/localization_module.dart
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@@ -18,25 +18,25 @@ class LocalizationModule extends Module {
i.addInstance<SharedPreferencesAsync>(SharedPreferencesAsync()); i.addInstance<SharedPreferencesAsync>(SharedPreferencesAsync());
// Data Sources // Data Sources
i.addSingleton<LocaleLocalDataSource>( i.addLazySingleton<LocaleLocalDataSource>(
() => LocaleLocalDataSourceImpl(i.get<SharedPreferencesAsync>()), () => LocaleLocalDataSourceImpl(i.get<SharedPreferencesAsync>()),
); );
// Repositories // Repositories
i.addSingleton<LocaleRepositoryInterface>( i.addLazySingleton<LocaleRepositoryInterface>(
() => LocaleRepositoryImpl(i.get<LocaleLocalDataSource>()), () => LocaleRepositoryImpl(i.get<LocaleLocalDataSource>()),
); );
// Use Cases // Use Cases
i.addSingleton<GetLocaleUseCase>( i.addLazySingleton<GetLocaleUseCase>(
() => GetLocaleUseCase(i.get<LocaleRepositoryInterface>()), () => GetLocaleUseCase(i.get<LocaleRepositoryInterface>()),
); );
i.addSingleton<SetLocaleUseCase>( i.addLazySingleton<SetLocaleUseCase>(
() => SetLocaleUseCase(i.get<LocaleRepositoryInterface>()), () => SetLocaleUseCase(i.get<LocaleRepositoryInterface>()),
); );
// BLoCs // BLoCs
i.addSingleton<LocaleBloc>( i.add<LocaleBloc>(
() => LocaleBloc( () => LocaleBloc(
getLocaleUseCase: i.get<GetLocaleUseCase>(), getLocaleUseCase: i.get<GetLocaleUseCase>(),
setLocaleUseCase: i.get<SetLocaleUseCase>(), setLocaleUseCase: i.get<SetLocaleUseCase>(),