128 lines
4.3 KiB
Dart
128 lines
4.3 KiB
Dart
import 'dart:async' show unawaited;
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import 'dart:io' show Platform;
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:material_symbols_icons/symbols.dart';
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import '../mixins/disposable_change_notifier_mixin.dart';
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import '../services/settings_binding_owner.dart';
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import '../services/settings_service.dart' as settings;
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import '../theme/mono_theme.dart';
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class ThemeProvider extends ChangeNotifier with DisposableChangeNotifierMixin, WidgetsBindingObserver {
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late final SettingsBindingOwner _settingsBinding;
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settings.ThemeMode _themeMode = settings.ThemeMode.system;
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late Brightness _systemBrightness;
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ThemeProvider() {
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_systemBrightness = WidgetsBinding.instance.platformDispatcher.platformBrightness;
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// Seed synchronously when settings are already loaded (main() initializes
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// them before runApp) so the first frame paints the persisted theme; the
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// async path below lands a microtask too late for the first build.
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final loaded = settings.SettingsService.instanceOrNull;
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if (loaded != null) _themeMode = loaded.read(settings.SettingsService.themeMode);
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_settingsBinding = SettingsBindingOwner(
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prefs: const [settings.SettingsService.themeMode],
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onRefresh: (service) => _syncThemeMode(service.read(settings.SettingsService.themeMode)),
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);
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unawaited(_settingsBinding.bind());
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WidgetsBinding.instance.addObserver(this);
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}
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@override
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void didChangePlatformBrightness() {
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_systemBrightness = WidgetsBinding.instance.platformDispatcher.platformBrightness;
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if (_themeMode == settings.ThemeMode.system) {
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safeNotifyListeners();
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}
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}
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@override
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void dispose() {
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_settingsBinding.dispose();
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WidgetsBinding.instance.removeObserver(this);
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super.dispose();
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}
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void _syncThemeMode(settings.ThemeMode mode, {bool forceNotify = false}) {
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final changed = _themeMode != mode;
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_themeMode = mode;
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_updateSplashTheme(mode);
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if (changed || forceNotify) safeNotifyListeners();
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}
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settings.ThemeMode get themeMode => _themeMode;
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ThemeData get lightTheme => monoTheme(dark: false);
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ThemeData get darkTheme {
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if (_themeMode == settings.ThemeMode.oled) {
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return monoTheme(dark: true, oled: true);
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}
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return monoTheme(dark: true);
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}
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ThemeMode get materialThemeMode {
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switch (_themeMode) {
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case settings.ThemeMode.light:
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return ThemeMode.light;
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case settings.ThemeMode.dark:
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return ThemeMode.dark;
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case settings.ThemeMode.oled:
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return ThemeMode.dark;
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case settings.ThemeMode.system:
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return ThemeMode.system;
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}
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}
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bool get isDarkMode {
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switch (_themeMode) {
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case settings.ThemeMode.light:
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return false;
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case settings.ThemeMode.dark:
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return true;
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case settings.ThemeMode.oled:
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return true;
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case settings.ThemeMode.system:
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return _systemBrightness == Brightness.dark;
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}
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}
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static const _themeChannel = MethodChannel('com.plezy/theme');
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Future<void> setThemeMode(settings.ThemeMode mode) async {
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if (_themeMode == mode) return;
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final service = _settingsBinding.settings ?? await settings.SettingsService.getInstance();
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await service.write(settings.SettingsService.themeMode, mode);
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if (_settingsBinding.settings == null) _syncThemeMode(mode);
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}
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Future<void> reload() async {
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await _settingsBinding.bind();
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final service = _settingsBinding.settings;
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if (service != null) _syncThemeMode(service.read(settings.SettingsService.themeMode), forceNotify: true);
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}
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void _updateSplashTheme(settings.ThemeMode mode) {
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if (!Platform.isAndroid) return;
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final name = switch (mode) {
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settings.ThemeMode.dark => 'dark',
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settings.ThemeMode.oled => 'oled',
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settings.ThemeMode.light => 'light',
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settings.ThemeMode.system => 'system',
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};
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_themeChannel.invokeMethod('setSplashTheme', {'mode': name});
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}
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IconData get themeModeIcon {
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switch (_themeMode) {
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case settings.ThemeMode.light:
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return Symbols.light_mode_rounded;
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case settings.ThemeMode.dark:
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return Symbols.dark_mode_rounded;
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case settings.ThemeMode.oled:
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return Symbols.contrast_rounded;
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case settings.ThemeMode.system:
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return Symbols.brightness_auto_rounded;
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}
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}
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}
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