lxh2875931338
0a1ebfa5df
之前列表只显示文件名，即使 DB 里已经有标签。 - SongDatabase 新增 getSongsByPaths()：一次批量按路径查（分块 400，避开变量上限） - WebDAVFileListPage： * 加载目录后批量取元数据，title/artist 有值就替换文件名 * 副标题显示 "艺术家 · 大小"，没有标签时仍显示大小 * 监听 AudioService，正在播放的歌补全元数据后立即刷新对应行 * 没有标签的新歌自然回退文件名，不影响使用
392 lines
12 KiB
Dart
392 lines
12 KiB
Dart
// lib/pages/webdav_file_list_page.dart
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import 'package:flutter/material.dart';
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import '../services/webdav_service.dart';
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import '../constants/ui_constants.dart';
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import '../base/base_state.dart';
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import '../controllers/playback_controller.dart';
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import '../database/song_database.dart';
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import '../services/audio_service.dart';
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class WebDAVFileListPage extends StatefulWidget {
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final String currentPath;
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const WebDAVFileListPage({super.key, this.currentPath = '/'});
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@override
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State<WebDAVFileListPage> createState() => _WebDAVFileListPageState();
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}
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class _WebDAVFileListPageState extends BaseState<WebDAVFileListPage> {
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List<WebDAVItem> _items = [];
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bool _isLoading = true;
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String _errorMessage = '';
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String _currentPath = '/';
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/// path -> 元数据行（songs 表），用于把文件名替换成标签里的标题/艺术家
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Map<String, Map<String, dynamic>> _metaByPath = {};
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String? _lastSyncedSongPath;
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// 安全解码
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String _safeDecode(String input) {
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try {
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return Uri.decodeComponent(input);
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} catch (_) {
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return input;
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}
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}
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@override
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void initState() {
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super.initState();
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_currentPath = widget.currentPath;
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AudioService().addListener(_onPlaybackChanged);
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_loadDirectory();
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}
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@override
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void dispose() {
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AudioService().removeListener(_onPlaybackChanged);
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super.dispose();
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}
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/// 播放中的歌一旦补全了元数据，立刻刷新列表里对应的那一行
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void _onPlaybackChanged() {
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final path = AudioService().currentSong?.id;
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if (path == null || path == _lastSyncedSongPath) return;
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_lastSyncedSongPath = path;
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_syncMetadataFor(path);
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}
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Future<void> _syncMetadataFor(String path) async {
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if (!_items.any((item) => item.path == path)) return;
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final row = await SongDatabase().getSongByPath(path);
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if (row == null || !mounted) return;
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final title = (row['title'] as String?)?.trim() ?? '';
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if (title.isEmpty) return;
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safeSetState(() {
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_metaByPath = {..._metaByPath, path: row};
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});
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}
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// ============================================================
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// 加载目录
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// ============================================================
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Future<void> _loadDirectory() async {
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safeSetState(() {
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_isLoading = true;
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_errorMessage = '';
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});
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try {
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final items =
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await WebDAVService.instance.listDirectory(path: _currentPath);
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// 一次性把本目录下所有文件的元数据查出来，列表直接用标签显示
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final paths = items
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.where((item) => !item.isDirectory)
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.map((item) => item.path)
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.toList();
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var meta = <String, Map<String, dynamic>>{};
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try {
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meta = await SongDatabase().getSongsByPaths(paths);
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} catch (e) {
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debugPrint('⚠️ [WebDAVList] 批量读取元数据失败: $e');
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}
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if (mounted) {
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safeSetState(() {
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_items = items;
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_metaByPath = meta;
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_isLoading = false;
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});
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// 如果当前正在播的歌就在这个目录里，补一次同步
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_lastSyncedSongPath = null;
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_onPlaybackChanged();
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}
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} catch (e) {
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if (mounted) {
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safeSetState(() {
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_errorMessage = '加载失败: $e';
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_isLoading = false;
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});
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}
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}
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}
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// ============================================================
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// 进入子目录
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// ============================================================
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void _enterDirectory(WebDAVItem dir) {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (_) => WebDAVFileListPage(currentPath: dir.path),
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),
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);
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}
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// ============================================================
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// ⭐ 播放单首（使用 PlaybackController）
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// ============================================================
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void _playSong(WebDAVItem file) async {
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try {
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await PlaybackController().playFromWebDAV(
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directoryPath: _currentPath,
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clickedSongPath: file.path,
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allItems: _items,
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);
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('正在播放: ${_safeDecode(file.name)}'),
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backgroundColor: const Color(0xFF4CAF50),
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duration: const Duration(seconds: 1),
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),
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);
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('播放失败: $e'),
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backgroundColor: Colors.red,
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),
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);
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}
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}
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}
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// ============================================================
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// ⭐ 全部播放（使用 PlaybackController）
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// ============================================================
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void _playAll() async {
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try {
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await PlaybackController().playAllFromWebDAV(
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directoryPath: _currentPath,
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allItems: _items,
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);
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if (mounted) {
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final musicCount = _items.where((item) => !item.isDirectory).length;
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('开始播放全部 ($musicCount 首)'),
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backgroundColor: const Color(0xFF4CAF50),
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duration: const Duration(seconds: 1),
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),
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);
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('播放失败: $e'),
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backgroundColor: Colors.red,
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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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// 显示路径
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// ============================================================
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String _getDisplayPath() {
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if (_currentPath == '/' || _currentPath.isEmpty) return '根目录';
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final decoded = _safeDecode(_currentPath);
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final parts = decoded.split('/').where((s) => s.isNotEmpty).toList();
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if (parts.isEmpty) return '根目录';
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if (parts.length <= 2) return parts.join(' / ');
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return '... / ${parts.sublist(parts.length - 2).join(' / ')}';
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}
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// ============================================================
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// Build
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// ============================================================
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: const Color(0xFF0E1211),
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appBar: AppBar(
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title: Text(
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_getDisplayPath(),
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style: const TextStyle(fontSize: 16),
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),
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backgroundColor: Colors.transparent,
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elevation: 0,
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foregroundColor: Colors.white,
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leading: IconButton(
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icon: const Icon(Icons.arrow_back_ios_new),
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onPressed: () => Navigator.pop(context),
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),
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actions: [
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IconButton(
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icon: const Icon(Icons.playlist_play),
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onPressed: _playAll,
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tooltip: '全部播放',
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),
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IconButton(
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icon: const Icon(Icons.refresh),
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onPressed: _loadDirectory,
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tooltip: '刷新',
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),
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],
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),
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body: _isLoading
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? const Center(
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child: CircularProgressIndicator(
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color: Color(0xFFB8D4D0),
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),
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)
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: _errorMessage.isNotEmpty
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? Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.error_outline,
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size: 48, color: Colors.grey[600]),
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const SizedBox(height: 16),
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Text(
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_errorMessage,
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style: TextStyle(color: Colors.grey[400]),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 16),
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ElevatedButton(
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onPressed: _loadDirectory,
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style: ElevatedButton.styleFrom(
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backgroundColor: const Color(0xFFB8D4D0),
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foregroundColor: Colors.black87,
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),
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child: const Text('重试'),
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),
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],
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),
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)
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: _items.isEmpty
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? Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.folder_open,
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size: 48, color: Colors.grey[600]),
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const SizedBox(height: 16),
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Text(
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'此目录为空',
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style: TextStyle(color: Colors.grey[400]),
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),
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const SizedBox(height: 8),
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Text(
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'支持格式: MP3, FLAC, M4A, APE, WAV, OPUS',
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style: TextStyle(
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color: Colors.grey[600], fontSize: 12),
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),
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],
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),
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)
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: ListView.builder(
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padding: const EdgeInsets.only(
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left: 16,
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right: 16,
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top: 8,
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bottom: UIConstants.miniPlayerBottomSpace,
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),
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itemCount: _items.length,
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itemBuilder: (context, index) {
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final item = _items[index];
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return _buildListItem(item);
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},
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),
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);
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}
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// ============================================================
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// 构建列表项
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// ============================================================
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Widget _buildListItem(WebDAVItem item) {
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final displayName = _safeDecode(item.name);
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if (item.isDirectory) {
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return ListTile(
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contentPadding: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
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leading: const Icon(
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Icons.folder_outlined,
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color: Color(0xFFB8D4D0),
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size: 32,
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),
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title: Text(
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displayName,
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w500,
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color: Colors.white,
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),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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subtitle: Text(
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'文件夹',
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey[500],
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),
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),
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trailing: const Icon(
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Icons.chevron_right,
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color: Colors.grey,
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),
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onTap: () => _enterDirectory(item),
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);
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} else {
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final sizeStr = item.size != null
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? '${(item.size! / 1024 / 1024).toStringAsFixed(1)} MB'
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: '';
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// 有标签就用标签，没有才退回文件名（例如新歌尚未抓取元数据）
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final meta = _metaByPath[item.path];
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final metaTitle = (meta?['title'] as String?)?.trim() ?? '';
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final metaArtist = (meta?['artist'] as String?)?.trim() ?? '';
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final hasMeta = metaTitle.isNotEmpty;
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final titleText = hasMeta ? metaTitle : displayName;
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final subtitleText = [
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if (hasMeta && metaArtist.isNotEmpty && metaArtist != '未知艺术家')
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metaArtist,
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if (sizeStr.isNotEmpty) sizeStr,
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].join(' · ');
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return ListTile(
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contentPadding: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
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leading: const Icon(
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Icons.audiotrack,
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color: Color(0xFFB8D4D0),
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size: 28,
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),
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title: Text(
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titleText,
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w400,
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color: Colors.white,
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),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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subtitle: Text(
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subtitleText,
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey[500],
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),
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),
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trailing: IconButton(
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icon: const Icon(Icons.play_arrow, color: Color(0xFFB8D4D0)),
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onPressed: () => _playSong(item),
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),
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onTap: () => _playSong(item),
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);
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}
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}
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}
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