134 lines
3.7 KiB
Dart
134 lines
3.7 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import '../../blocs/theme/theme_bloc.dart';
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import '../../blocs/theme/theme_event.dart';
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import '../../blocs/theme/theme_state.dart';
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import '../../utils/web_theme.dart';
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class ThemeToggleButton extends StatelessWidget {
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final double? size;
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final Color? iconColor;
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final Color? backgroundColor;
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final bool showLabel;
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final String? tooltip;
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const ThemeToggleButton({
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super.key,
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this.size,
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this.iconColor,
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this.backgroundColor,
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this.showLabel = false,
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this.tooltip,
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});
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@override
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Widget build(BuildContext context) {
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return BlocBuilder<ThemeBloc, ThemeState>(
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builder: (context, state) {
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return _buildToggleButton(context, state);
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},
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);
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}
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Widget _buildToggleButton(BuildContext context, ThemeState state) {
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final isDarkTheme = WebTheme.isDarkMode(context);
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final iconData = _getIconData(state.themeMode);
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final label = _getLabel(state.themeMode);
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// 确保按钮图标和背景有足够的对比度
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final buttonColor = backgroundColor ??
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(isDarkTheme ? WebTheme.darkGrey100 : WebTheme.grey100);
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final buttonIconColor = iconColor ??
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(isDarkTheme ? WebTheme.darkGrey800 : WebTheme.grey800);
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if (showLabel) {
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return Container(
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decoration: BoxDecoration(
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color: buttonColor,
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borderRadius: BorderRadius.circular(8),
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border: Border.all(
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color: isDarkTheme ? WebTheme.darkGrey300 : WebTheme.grey300,
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width: 1,
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),
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),
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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onTap: () => context.read<ThemeBloc>().add(ThemeToggled()),
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borderRadius: BorderRadius.circular(8),
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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iconData,
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size: size ?? 20,
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color: buttonIconColor,
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),
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const SizedBox(width: 8),
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Text(
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label,
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style: TextStyle(
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color: buttonIconColor,
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fontSize: 14,
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fontWeight: FontWeight.w500,
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),
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),
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],
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),
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),
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),
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),
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);
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}
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return Container(
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decoration: BoxDecoration(
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color: buttonColor,
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borderRadius: BorderRadius.circular(8),
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border: Border.all(
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color: isDarkTheme ? WebTheme.darkGrey300 : WebTheme.grey300,
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width: 1,
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),
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),
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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onTap: () => context.read<ThemeBloc>().add(ThemeToggled()),
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borderRadius: BorderRadius.circular(8),
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child: Padding(
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padding: const EdgeInsets.all(8),
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child: Icon(
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iconData,
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size: size ?? 20,
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color: buttonIconColor,
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),
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),
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),
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),
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);
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}
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IconData _getIconData(ThemeMode themeMode) {
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switch (themeMode) {
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case ThemeMode.light:
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return Icons.light_mode;
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case ThemeMode.dark:
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return Icons.dark_mode;
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case ThemeMode.system:
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return Icons.brightness_auto;
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}
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}
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String _getLabel(ThemeMode themeMode) {
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switch (themeMode) {
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case ThemeMode.light:
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return '浅色';
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case ThemeMode.dark:
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return '深色';
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case ThemeMode.system:
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return '自动';
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}
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}
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} |