76 lines
2.1 KiB
Dart
76 lines
2.1 KiB
Dart
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import 'package:flutter/material.dart';
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import '../services/theme_service.dart';
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import 'app_colors.dart';
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/// InheritedWidget providing runtime theme colors
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///
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/// Wraps the app and provides semantic color getters that resolve
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/// to dark or bright variants based on ThemeService state.
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///
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/// Usage: AppTheme.of(context).background
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class AppTheme extends InheritedWidget {
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final bool isDarkMode;
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const AppTheme({
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super.key,
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required this.isDarkMode,
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required super.child,
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});
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/// Get the nearest AppTheme from context
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static AppTheme of(BuildContext context) {
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final theme = context.dependOnInheritedWidgetOfExactType<AppTheme>();
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assert(theme != null, 'No AppTheme found in context');
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return theme!;
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}
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// Semantic color getters - pick dark or bright based on mode
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Color get background => isDarkMode ? AppColors.darkBackground : AppColors.brightBackground;
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Color get foreground => isDarkMode ? AppColors.darkForeground : AppColors.brightForeground;
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Color get highlight => isDarkMode ? AppColors.darkHighlight : AppColors.brightHighlight;
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Color get subdued => isDarkMode ? AppColors.darkSubdued : AppColors.brightSubdued;
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@override
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bool updateShouldNotify(AppTheme oldWidget) => isDarkMode != oldWidget.isDarkMode;
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}
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/// Wrapper widget that manages AppTheme state
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///
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/// Listens to ThemeService and rebuilds when theme changes.
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/// Place this at the root of your widget tree.
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class AppThemeProvider extends StatefulWidget {
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final Widget child;
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const AppThemeProvider({super.key, required this.child});
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@override
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State<AppThemeProvider> createState() => _AppThemeProviderState();
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}
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class _AppThemeProviderState extends State<AppThemeProvider> {
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@override
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void initState() {
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super.initState();
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ThemeService.instance.addListener(_onThemeChanged);
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}
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@override
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void dispose() {
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ThemeService.instance.removeListener(_onThemeChanged);
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super.dispose();
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}
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void _onThemeChanged() {
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setState(() {});
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}
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@override
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Widget build(BuildContext context) {
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return AppTheme(
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isDarkMode: ThemeService.instance.isDarkMode,
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child: widget.child,
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);
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}
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}
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