Files
MookNote/lib/pages/playlist/playlist_detail_page.dart
DelLevin-Home 103afaa65e v0.2.9
2026-08-07 21:26:10 +08:00

496 lines
17 KiB
Dart

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../../providers/app_provider.dart';
import '../../models/data_models.dart';
import '../../widgets/fade_in_local_image.dart';
import '../../widgets/animated_star_rating.dart';
import '../movies/movie_detail_page.dart';
import '../book/book_detail_page.dart';
import '../game/game_detail_page.dart';
import 'playlist_add_item_page.dart';
class PlaylistDetailPage extends StatefulWidget {
final Playlist playlist;
const PlaylistDetailPage({super.key, required this.playlist});
@override
State<PlaylistDetailPage> createState() => _PlaylistDetailPageState();
}
class _PlaylistDetailPageState extends State<PlaylistDetailPage> {
List<PlaylistItem> _items = [];
bool _loading = true;
final Map<String, double> _slideOffsets = {};
double _dragStartX = 0;
double _dragStartOffset = 0;
bool _isHorizontalDrag = false;
static const _actionWidth = 56.0;
@override
void initState() {
super.initState();
_loadItems();
}
Future<void> _loadItems() async {
final provider = context.read<AppProvider>();
final items = await provider.getPlaylistItems(widget.playlist.id);
if (!mounted) return;
setState(() {
_items = items;
_loading = false;
});
}
/// 解析条目信息
_ResolvedItem? _resolve(PlaylistItem item, AppProvider provider) {
final type = widget.playlist.type;
String? status;
String title = '';
String? coverPath;
double? rating;
String subtitle = '';
dynamic entity;
if (type == 'movie') {
final movie = provider.movies.where((m) => m.id == item.itemId).firstOrNull;
if (movie == null) return null;
entity = movie;
status = movie.status;
title = movie.title;
coverPath = movie.posterPath;
rating = movie.rating;
subtitle = movie.directors.isNotEmpty ? movie.directors.take(2).join(' / ') : '';
} else if (type == 'book') {
final book = provider.books.where((b) => b.id == item.itemId).firstOrNull;
if (book == null) return null;
entity = book;
status = book.status;
title = book.title;
coverPath = book.coverPath;
rating = book.rating;
subtitle = book.authors.isNotEmpty ? book.authors.take(2).join(' / ') : '';
} else if (type == 'game') {
final game = provider.games.where((g) => g.id == item.itemId).firstOrNull;
if (game == null) return null;
entity = game;
status = game.status;
title = game.title;
coverPath = game.coverPath;
rating = game.rating;
subtitle = game.developer.isNotEmpty ? game.developer.take(2).join(' / ') : '';
}
return _ResolvedItem(
playlistItem: item,
entity: entity,
title: title,
coverPath: coverPath,
rating: rating,
subtitle: subtitle,
status: status ?? '',
);
}
static String _statusLabel(String type, String status) {
if (type == 'movie') {
return switch (status) {
'watched' => '已看',
'watching' => '在看',
'want_to_watch' => '想看',
_ => '',
};
} else if (type == 'book') {
return switch (status) {
'read' => '已读',
'reading' => '在读',
'want_to_read' => '想读',
_ => '',
};
} else {
return switch (status) {
'completed' => '已完',
'playing' => '在玩',
'want_to_play' => '想玩',
'abandoned' => '已弃',
_ => '',
};
}
}
static Color _statusColor(String status) {
return switch (status) {
'watched' || 'read' || 'completed' => const Color(0xFF4CAF50),
'watching' || 'reading' || 'playing' => const Color(0xFF42A5F5),
'want_to_watch' || 'want_to_read' || 'want_to_play' => const Color(0xFFFF9800),
'abandoned' => const Color(0xFFEF5350),
_ => Colors.grey,
};
}
@override
Widget build(BuildContext context) {
final provider = context.watch<AppProvider>();
final playlist = provider.playlists.firstWhere(
(p) => p.id == widget.playlist.id,
orElse: () => widget.playlist,
);
return Scaffold(
appBar: AppBar(
title: Text(playlist.name),
actions: [
IconButton(
icon: const Icon(Icons.add, size: 22),
onPressed: () async {
await Navigator.push<bool>(
context,
MaterialPageRoute(builder: (_) => PlaylistAddItemPage(playlist: playlist)),
);
if (mounted) {
_loadItems();
provider.loadPlaylists();
}
},
),
],
),
body: _loading
? const Center(child: SizedBox(width: 20, height: 20, child: CircularProgressIndicator(strokeWidth: 2)))
: _items.isEmpty
? _buildEmpty(context)
: _buildList(context, provider),
);
}
Widget _buildEmpty(BuildContext context) {
final colors = Theme.of(context).colorScheme;
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
width: 72, height: 72,
decoration: BoxDecoration(
color: colors.surfaceContainerHighest,
borderRadius: BorderRadius.circular(18),
),
child: Icon(Icons.playlist_add_check_outlined, size: 36, color: colors.onSurface.withValues(alpha: 0.2)),
),
const SizedBox(height: 16),
Text('还没有添加条目', style: TextStyle(fontSize: 15, color: colors.onSurface.withValues(alpha: 0.4))),
const SizedBox(height: 6),
Text('点击右上角 + 添加', style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.3))),
],
),
);
}
Widget _buildList(BuildContext context, AppProvider provider) {
final type = widget.playlist.type;
final resolved = _items
.map((item) => _resolve(item, provider))
.whereType<_ResolvedItem>()
.toList();
return ReorderableListView.builder(
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
itemCount: resolved.length,
onReorder: (oldIndex, newIndex) {
if (newIndex > oldIndex) newIndex--;
final list = List<_ResolvedItem>.from(resolved);
final item = list.removeAt(oldIndex);
list.insert(newIndex, item);
setState(() {
_items = list.map((r) => r.playlistItem).toList();
});
provider.reorderPlaylistItems(
widget.playlist.id,
_items.map((i) => i.id).toList(),
);
},
proxyDecorator: (child, index, animation) {
return AnimatedBuilder(
animation: animation,
builder: (_, __) {
final t = Curves.easeInOut.transform(animation.value);
return Transform.scale(
scale: 1.0 + 0.03 * t,
child: Opacity(opacity: 1.0 - 0.15 * t, child: child),
);
},
);
},
itemBuilder: (context, index) {
return _buildItem(context, resolved[index], type, provider);
},
);
}
Widget _buildItem(BuildContext context, _ResolvedItem item, String type, AppProvider provider) {
final colors = Theme.of(context).colorScheme;
final statusColor = _statusColor(item.status);
final statusLabel = _statusLabel(type, item.status);
final itemId = item.playlistItem.id;
return Padding(
key: Key(itemId),
padding: const EdgeInsets.only(bottom: 10),
child: Stack(
clipBehavior: Clip.hardEdge,
children: [
// 底层:删除按钮
Positioned(
right: 0,
top: 0,
bottom: 0,
child: Align(
alignment: Alignment.centerRight,
child: Padding(
padding: const EdgeInsets.only(right: 8),
child: GestureDetector(
onTap: () async {
setState(() => _slideOffsets[itemId] = 0.0);
await provider.removePlaylistItem(item.playlistItem.id, item.playlistItem.playlistId);
if (mounted) _loadItems();
},
child: Container(
width: 40, height: 40,
decoration: BoxDecoration(
color: colors.error.withValues(alpha: 0.12),
shape: BoxShape.circle,
),
child: Icon(Icons.delete_outline, size: 20, color: colors.error),
),
),
),
),
),
// 上层:卡片内容(左滑 + 长按拖动排序)
AnimatedContainer(
duration: const Duration(milliseconds: 150),
curve: Curves.easeOut,
transform: Matrix4.translationValues(_slideOffsets[itemId] ?? 0, 0, 0),
child: Listener(
behavior: HitTestBehavior.translucent,
onPointerDown: (event) {
_dragStartX = event.position.dx;
_dragStartOffset = _slideOffsets[itemId] ?? 0;
_isHorizontalDrag = false;
},
onPointerMove: (event) {
final dx = event.position.dx - _dragStartX;
if (!_isHorizontalDrag && dx.abs() > 10) {
if (dx < 0 || _dragStartOffset < 0) {
_isHorizontalDrag = true;
}
}
if (_isHorizontalDrag) {
setState(() {
_slideOffsets[itemId] = (_dragStartOffset + dx).clamp(-_actionWidth * 2, 0.0);
});
}
},
onPointerUp: (_) {
if (_isHorizontalDrag) {
final offset = _slideOffsets[itemId] ?? 0.0;
final target = offset < -_actionWidth ? -_actionWidth * 2 : 0.0;
setState(() => _slideOffsets[itemId] = target);
}
_isHorizontalDrag = false;
},
child: ReorderableDelayedDragStartListener(
index: _items.indexOf(item.playlistItem),
child: Material(
color: Colors.transparent,
child: InkWell(
onTap: () {
if ((_slideOffsets[itemId] ?? 0) < 0) {
setState(() => _slideOffsets[itemId] = 0.0);
return;
}
final page = switch (type) {
'movie' => MovieDetailPage(movie: item.entity as Movie),
'book' => BookDetailPage(book: item.entity as Book),
'game' => GameDetailPage(game: item.entity as Game),
_ => null,
};
if (page != null) Navigator.push(context, MaterialPageRoute(builder: (_) => page));
},
borderRadius: BorderRadius.circular(14),
child: Container(
padding: const EdgeInsets.fromLTRB(12, 12, 8, 12),
decoration: BoxDecoration(
color: colors.surfaceContainerLow,
borderRadius: BorderRadius.circular(14),
border: Border.all(color: colors.outlineVariant.withValues(alpha: 0.5), width: 0.5),
),
child: Row(
children: [
// 封面
ClipRRect(
borderRadius: BorderRadius.circular(8),
child: SizedBox(
width: 48, height: 64,
child: item.coverPath != null && item.coverPath!.isNotEmpty
? FadeInLocalImage(
path: item.coverPath,
fit: BoxFit.cover,
errorWidget: _buildPlaceholder(type, colors),
)
: _buildPlaceholder(type, colors),
),
),
const SizedBox(width: 12),
// 信息
Expanded(
child: SizedBox(
height: 64,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(item.title,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: TextStyle(fontSize: 14, fontWeight: FontWeight.w600, color: colors.onSurface)),
if (item.subtitle.isNotEmpty) ...[
const SizedBox(height: 3),
Text(item.subtitle,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.4))),
],
const Spacer(),
if (item.rating != null)
AnimatedStarRating(rating: item.rating!, starSize: 11, showNumber: true)
else
Text('未评分', style: TextStyle(fontSize: 11, color: colors.onSurface.withValues(alpha: 0.25))),
],
),
),
),
const SizedBox(width: 8),
// 状态章
if (statusLabel.isNotEmpty) _buildStamp(statusLabel, statusColor),
],
),
),
),
),
),
),
),
],
),
);
}
/// 章形状的状态标签 — 双圈外圆 + 内长方框,模拟印章效果
Widget _buildStamp(String label, Color color) {
return Transform.rotate(
angle: -0.12,
child: SizedBox(
width: 52, height: 52,
child: CustomPaint(
painter: _StampPainter(color: color),
child: Center(
child: Container(
padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
margin: const EdgeInsets.all(10),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(1.5),
border: Border.all(color: color.withValues(alpha: 0.55), width: 0.8),
),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Text(label,
style: TextStyle(
fontSize: 7,
fontWeight: FontWeight.w900,
color: color.withValues(alpha: 0.85),
height: 1.1,
letterSpacing: 0.8,
)),
const SizedBox(height: 0.5),
Text('MOOKNOTE',
style: TextStyle(
fontSize: 2,
fontWeight: FontWeight.w700,
color: color.withValues(alpha: 0.45),
height: 1,
letterSpacing: 1,
)),
],
),
),
),
),
),
);
}
Widget _buildPlaceholder(String type, ColorScheme colors) {
final icon = switch (type) {
'movie' => Icons.movie_outlined,
'book' => Icons.menu_book_outlined,
'game' => Icons.sports_esports_outlined,
_ => Icons.list_outlined,
};
return Container(
color: colors.surfaceContainerHighest,
child: Center(child: Icon(icon, size: 20, color: colors.onSurface.withValues(alpha: 0.25))),
);
}
}
class _ResolvedItem {
final PlaylistItem playlistItem;
final dynamic entity;
final String title;
final String? coverPath;
final double? rating;
final String subtitle;
final String status;
_ResolvedItem({
required this.playlistItem,
this.entity,
required this.title,
this.coverPath,
this.rating,
this.subtitle = '',
required this.status,
});
}
/// 印章绘制器 — 双圈外圆
class _StampPainter extends CustomPainter {
final Color color;
_StampPainter({required this.color});
@override
void paint(Canvas canvas, Size size) {
final cx = size.width / 2;
final cy = size.height / 2;
final paint = Paint()
..color = color.withValues(alpha: 0.7)
..style = PaintingStyle.stroke
..strokeWidth = 1.8;
// 外圈
canvas.drawCircle(Offset(cx, cy), size.width / 2 - 2, paint);
// 内圈
final innerPaint = Paint()
..color = color.withValues(alpha: 0.45)
..style = PaintingStyle.stroke
..strokeWidth = 1;
canvas.drawCircle(Offset(cx, cy), size.width / 2 - 5, innerPaint);
}
@override
bool shouldRepaint(covariant _StampPainter old) => old.color != color;
}