78 lines
3.0 KiB
Dart
78 lines
3.0 KiB
Dart
import 'package:flutter/material.dart';
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typedef LangLocalization = Map<String, String>;
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String _translation(LangLocalization loc, String key) {
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return loc[key] ?? '';
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}
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typedef Localizations = Map<String, LangLocalization>;
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typedef Localizer = String Function(BuildContext);
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class Localization {
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static const String keyHint = 'hint';
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static const String keyLink = 'link';
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static const String keyName = 'name';
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static const String keyError = 'error';
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static const String keyAddress = 'address';
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static const String keyDetails = 'details';
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static const String keyRoute = 'route';
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static const String keyLocationName = 'location_name';
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static String _localizeImp(Localizations localizations, String locale, String Function(LangLocalization) functor) {
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final localization = localizations[locale];
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if (localization != null) {
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return functor(localization);
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}
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return '';
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}
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static String _localize(Localizations localizations, String locale, String Function(LangLocalization) functor, {String? fallback}) {
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final res = _localizeImp(localizations, locale, functor);
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return res.isNotEmpty ? res : (fallback ?? '');
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}
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static bool localizationExists(Localizations loc, String locale) {
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return loc.containsKey(locale);
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}
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static String hint(Localizations loc, String locale, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, keyHint), fallback: fallback);
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}
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static String link(Localizations loc, String locale, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, keyLink), fallback: fallback);
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}
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static String name(Localizations loc, String locale, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, keyName), fallback: fallback);
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}
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static String error(Localizations loc, String locale, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, keyError), fallback: fallback);
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}
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static String address(Localizations loc, String locale, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, keyAddress), fallback: fallback);
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}
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static String details(Localizations loc, String locale, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, keyDetails), fallback: fallback);
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}
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static String route(Localizations loc, String locale, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, keyRoute), fallback: fallback);
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}
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static String locationName(Localizations loc, String locale, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, keyLocationName), fallback: fallback);
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}
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static String translate(Localizations loc, String locale, String key, {String? fallback}) {
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return _localize(loc, locale, (localization) => _translation(localization, key), fallback: fallback);
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}
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}
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