40 lines
1.3 KiB
Dart
40 lines
1.3 KiB
Dart
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import 'package:fluent/fluent.dart';
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import 'package:flutter/services.dart' show rootBundle;
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import 'package:flutter/widgets.dart';
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/// Loads and formats the app's Fluent messages. All user-facing strings come
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/// from locales/en-US/main.ftl; lookups fall back to the message ID when a
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/// message is missing so that missing translations are obvious in the UI.
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class Strings {
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final FluentBundle _bundle = FluentBundle('en-US');
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/// Loads the messages from the app's asset bundle.
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Future<void> load() async {
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final source = await rootBundle.loadString('locales/en-US/main.ftl');
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loadSource(source);
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}
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/// Loads messages from an already-read source, so tests can read the file
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/// from disk instead of the asset bundle.
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void loadSource(String source) {
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_bundle.addMessages(source);
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}
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String t(String id, [Map<String, Object?> args = const {}]) {
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return _bundle.format(id, args: args) ?? id;
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}
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}
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/// Provides [Strings] to the widget tree.
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class StringsScope extends InheritedWidget {
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const StringsScope({required this.strings, required super.child, super.key});
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final Strings strings;
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static Strings of(BuildContext context) =>
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context.getInheritedWidgetOfExactType<StringsScope>()!.strings;
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@override
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bool updateShouldNotify(StringsScope oldWidget) => false;
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}
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