Files
App/lib/widgets/notification_overlay.dart
2026-01-15 01:31:09 +08:00

132 lines
3.8 KiB
Dart

import 'dart:async';
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:island/pods/notification.dart';
import 'package:island/services/responsive.dart';
import 'package:island/widgets/notification_item.dart';
import 'package:styled_widget/styled_widget.dart';
class NotificationOverlay extends HookConsumerWidget {
const NotificationOverlay({super.key});
@override
Widget build(BuildContext context, WidgetRef ref) {
final notifications = ref.watch(notificationStateProvider);
final isDesktop = isWideScreen(context);
final devicePadding = MediaQuery.paddingOf(context);
final topOffset =
devicePadding.top +
((!kIsWeb &&
(Platform.isMacOS || Platform.isLinux || Platform.isWindows))
? 40
: 16);
if (notifications.isEmpty) {
return const SizedBox.shrink();
}
return Positioned(
top: topOffset,
left: 0,
right: 0,
child: Material(
color: Colors.transparent,
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: isDesktop
? CrossAxisAlignment.end
: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.min,
children: notifications.asMap().entries.map((entry) {
final item = entry.value;
return AnimatedNotificationItem(
key: Key(item.id),
item: item,
isDesktop: isDesktop,
onDismiss: () {
ref.read(notificationStateProvider.notifier).remove(item.id);
},
);
}).toList(),
),
),
);
}
}
class AnimatedNotificationItem extends HookConsumerWidget {
final NotificationItem item;
final VoidCallback onDismiss;
final bool isDesktop;
const AnimatedNotificationItem({
super.key,
required this.item,
required this.onDismiss,
required this.isDesktop,
});
@override
Widget build(BuildContext context, WidgetRef ref) {
final animationController = useAnimationController(
duration: const Duration(milliseconds: 300),
reverseDuration: const Duration(milliseconds: 250),
);
final isDismissed = useState(false);
final slideTween = Tween<Offset>(
begin: Offset(isDesktop ? 1.0 : 0.0, 0),
end: Offset.zero,
).chain(CurveTween(curve: Curves.easeOutCubic));
final fadeTween = Tween<double>(
begin: 0.0,
end: 1.0,
).chain(CurveTween(curve: Curves.easeOut));
useEffect(() {
animationController.forward();
return null;
}, []);
useEffect(() {
if (isDismissed.value) return null;
final timer = Timer(item.duration, () async {
if (!isDismissed.value) {
isDismissed.value = true;
await animationController.reverse();
onDismiss();
}
});
return () => timer.cancel();
}, [item.duration, isDismissed.value]);
return AnimatedBuilder(
animation: animationController,
builder: (context, child) {
return Transform.translate(
offset: slideTween.evaluate(animationController),
child: Opacity(
opacity: fadeTween.evaluate(animationController),
child: child,
),
);
},
child: Padding(
padding: isDesktop
? const EdgeInsets.only(bottom: 12, right: 16)
: const EdgeInsets.only(bottom: 12, left: 16, right: 16),
child: NotificationItemWidget(
item: item,
isDesktop: isDesktop,
onDismiss: () {},
).width(isDesktop ? 340 : MediaQuery.sizeOf(context).width - 40),
),
);
}
}