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fix: 补全下载搜索的隐藏选择及删除提示 #285

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fix: 补全下载搜索的隐藏选择及删除提示 #285

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75 changes: 45 additions & 30 deletions lib/pages/download_page.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -791,10 +791,10 @@ class _DownloadPageState extends State<DownloadPage> {
}
}
if (!mounted || widget.runtime != runtime) return;
final count = groups.values.fold<int>(
0,
(sum, tasks) => sum + tasks.length,
);
final selected = groups.values.expand((tasks) => tasks).toList();
final count = selected.length;
final hiddenSelected =
count - _matchingDownloads(selected, _downloadFilter).length;
final confirmed = await showDialog<bool>(
context: context,
builder: (context) => AlertDialog(
Expand All @@ -803,6 +803,7 @@ class _DownloadPageState extends State<DownloadPage> {
content: Text(
'共 ${groups.length} 个路径，预计释放 ${_bytes(estimatedBytes)}'
'${unknownSizes > 0 ? "（另有 $unknownSizes 个路径大小未知或文件已缺失）" : ""}。\n\n'
'${hiddenSelected > 0 ? "其中 $hiddenSelected 条已选声音不在当前搜索结果中，也将删除其音频。\n\n" : ""}'
'正在使用这些文件的播放会停止。任务和扣时记录保留；缺失文件不会记为主动删除。',
),
actions: [
Expand Down Expand Up @@ -1145,30 +1146,41 @@ class _DownloadPageState extends State<DownloadPage> {
}
}

Widget _downloadedLibrary(List<DownloadTask> completed) {
final compact = MediaQuery.sizeOf(context).width < 320;
final query = _downloadFilter;
List<DownloadTask> _matchingDownloads(
List<DownloadTask> tasks,
String query,
) {
if (query.isEmpty) return tasks;
final tokens = query
.split(RegExp(r'\s+'))
.where((value) => value.isNotEmpty);
final matches = query.isEmpty
? const <DownloadTask>[]
: completed.where((task) {
final track = task.track;
final text = [
_downloadAlbumTitle(task),
track.album,
track.title,
for (final ordinal in {
track.officialPosition,
track.orderNo,
track.episode,
}.whereType<int>())
'$ordinal 第${ordinal}集',
].join(' ').toLowerCase();
return tokens.every(text.contains);
}).toList();
final visible = query.isEmpty ? completed : matches;
return tasks.where((task) {
final track = task.track;
final text = [
_downloadAlbumTitle(task),
track.album,
track.title,
for (final ordinal in {
track.officialPosition,
track.orderNo,
track.episode,
}.whereType<int>())
'$ordinal 第${ordinal}集',
].join(' ').toLowerCase();
return tokens.every(text.contains);
}).toList();
}

Widget _downloadedLibrary(List<DownloadTask> completed) {
final compact = MediaQuery.sizeOf(context).width < 320;
final query = _downloadFilter;
final visible = _matchingDownloads(completed, query);
final hiddenSelected = query.isEmpty || _selectedDownloads.isEmpty
? 0
: _selectedDownloads.length -
visible
.where((task) => _selectedDownloads.contains(task.id))
.length;
return LayoutBuilder(
builder: (context, constraints) => Column(
children: [
Expand Down Expand Up @@ -1248,7 +1260,10 @@ class _DownloadPageState extends State<DownloadPage> {
label: const Text('多选音频'),
)
else ...[
Text('已选 ${_selectedDownloads.length} 条'),
Text(
'已选 ${_selectedDownloads.length} 条'
'${hiddenSelected > 0 ? "（含 $hiddenSelected 条未显示）" : ""}',
),
TextButton(
onPressed: _deletingAudio || visible.isEmpty
? null
Expand Down Expand Up @@ -1293,7 +1308,7 @@ class _DownloadPageState extends State<DownloadPage> {
Padding(
padding: const EdgeInsets.fromLTRB(16, 0, 16, 8),
child: Text(
'本地下载记录：匹配 ${matches.length} / 共 ${completed.length} 条',
'本地下载记录：匹配 ${visible.length} / 共 ${completed.length} 条',
),
),
if (query.isNotEmpty && _error != null)
Expand All @@ -1313,14 +1328,14 @@ class _DownloadPageState extends State<DownloadPage> {
Expanded(
child: query.isEmpty
? _albumList(completed, downloaded: true)
: matches.isEmpty
: visible.isEmpty
? const Center(child: Text('未找到匹配的本地下载记录'))
: Scrollbar(
child: ListView.builder(
key: ValueKey('downloadSearch:$query'),
itemCount: matches.length,
itemCount: visible.length,
itemBuilder: (context, index) => _downloadedTrack(
matches[index],
visible[index],
compact,
searchResult: true,
),
Expand Down