720 lines
23 KiB
Dart
720 lines
23 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:material_symbols_icons/symbols.dart';
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import '../../focus/focusable_action_bar.dart';
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import '../../services/plex_client.dart';
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import '../../services/play_queue_launcher.dart';
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import '../../models/plex_playlist.dart';
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import '../../models/plex_metadata.dart';
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import '../../utils/app_logger.dart';
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import '../../utils/provider_extensions.dart';
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import '../../widgets/app_icon.dart';
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import '../../widgets/desktop_app_bar.dart';
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import '../../focus/dpad_navigator.dart';
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import '../../focus/input_mode_tracker.dart';
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import '../../focus/key_event_utils.dart';
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import 'package:provider/provider.dart';
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import 'playlist_item_card.dart';
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import '../../i18n/strings.g.dart';
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import '../../providers/download_provider.dart';
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import '../../utils/content_utils.dart';
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import '../../utils/dialogs.dart';
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import '../../utils/download_utils.dart';
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import '../../utils/global_key_utils.dart';
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import '../../utils/snackbar_helper.dart';
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import '../base_media_list_detail_screen.dart';
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import '../focusable_detail_screen_mixin.dart';
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import '../../mixins/grid_focus_node_mixin.dart';
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/// Screen to display the contents of a playlist
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class PlaylistDetailScreen extends StatefulWidget {
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final PlexPlaylist playlist;
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const PlaylistDetailScreen({super.key, required this.playlist});
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@override
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State<PlaylistDetailScreen> createState() => _PlaylistDetailScreenState();
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}
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class _PlaylistDetailScreenState extends BaseMediaListDetailScreen<PlaylistDetailScreen>
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with
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StandardItemLoader<PlaylistDetailScreen>,
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GridFocusNodeMixin<PlaylistDetailScreen>,
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FocusableDetailScreenMixin<PlaylistDetailScreen> {
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@override
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dynamic get mediaItem => widget.playlist;
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@override
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String get title => widget.playlist.title;
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@override
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String get emptyMessage => t.playlists.emptyPlaylist;
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@override
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IconData get emptyIcon => Symbols.playlist_play_rounded;
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@override
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bool get hasItems => items.isNotEmpty;
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@override
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List<FocusableAction> getAppBarActions() {
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final isVideoPlaylist = widget.playlist.playlistType == 'video';
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final globalKey = _playlistGlobalKey();
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// Select the specific bool we care about so unrelated DownloadProvider
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// ticks (e.g. active download progress) don't rebuild the app bar.
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final hasRule = isVideoPlaylist && context.select<DownloadProvider, bool>((p) => p.hasSyncRule(globalKey));
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return [
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if (items.isNotEmpty) ...[
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FocusableAction(icon: Symbols.play_arrow_rounded, tooltip: t.common.play, onPressed: playItems),
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FocusableAction(icon: Symbols.shuffle_rounded, tooltip: t.common.shuffle, onPressed: shufflePlayItems),
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],
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if (isVideoPlaylist && (items.isNotEmpty || hasRule))
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FocusableAction(
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icon: hasRule ? Symbols.sync_rounded : Symbols.download_rounded,
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tooltip: hasRule ? t.downloads.manageSyncRule : t.downloads.downloadNow,
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onPressed: hasRule ? _managePlaylistSyncRule : _downloadPlaylist,
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iconColor: hasRule ? Colors.teal : null,
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),
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if (hasRule)
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FocusableAction(
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icon: Symbols.sync_disabled_rounded,
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tooltip: t.downloads.removeSyncRule,
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onPressed: _removePlaylistSyncRule,
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),
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if (!widget.playlist.smart)
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FocusableAction(
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icon: Symbols.delete_rounded,
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tooltip: t.playlists.delete,
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onPressed: _deletePlaylist,
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iconColor: Colors.red,
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),
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];
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}
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PlexMetadata _playlistAsMetadata() => PlexMetadata(
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ratingKey: widget.playlist.ratingKey,
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type: ContentTypes.playlist,
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title: widget.playlist.title,
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thumb: widget.playlist.thumb,
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serverId: widget.playlist.serverId ?? client.serverId,
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serverName: widget.playlist.serverName,
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);
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String _playlistGlobalKey() => buildGlobalKey(widget.playlist.serverId ?? client.serverId, widget.playlist.ratingKey);
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Future<void> _managePlaylistSyncRule() =>
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manageSyncRule(context, downloadProvider: context.read<DownloadProvider>(), globalKey: _playlistGlobalKey());
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Future<void> _removePlaylistSyncRule() => removeSyncRuleAndSnack(
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context,
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downloadProvider: context.read<DownloadProvider>(),
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globalKey: _playlistGlobalKey(),
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displayTitle: widget.playlist.title,
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);
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// Focus management for regular (non-smart) reorderable lists
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final FocusNode _listFocusNode = FocusNode(debugLabel: 'playlist_list');
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// Navigation state for regular (non-smart) playlists
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int _focusedIndex = 0;
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int _focusedColumn = 0; // 0=content, 1=drag handle, 2=remove button
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// Move mode state
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int? _movingIndex;
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int? _originalIndex;
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List<PlexMetadata>? _originalOrder;
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// Estimated item height for scroll-into-view (card + vertical margins)
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static const double _estimatedItemHeight = 114.0;
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@override
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void dispose() {
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_listFocusNode.dispose();
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disposeFocusResources();
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super.dispose();
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}
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@override
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Future<List<PlexMetadata>> fetchItems() async {
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return await client.fetchAllPlaylistItems(widget.playlist.ratingKey);
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}
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@override
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Future<void> loadItems() async {
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await super.loadItems();
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// Auto-focus after load if in keyboard mode
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if (mounted && items.isNotEmpty) {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted) return;
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if (InputModeTracker.isKeyboardMode(context)) {
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setState(() {
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isAppBarFocused = false;
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_focusedIndex = 0;
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_focusedColumn = 0;
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});
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if (widget.playlist.smart) {
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firstItemFocusNode.requestFocus();
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} else {
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_listFocusNode.requestFocus();
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}
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}
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});
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}
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}
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@override
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String getLoadSuccessMessage(int itemCount) {
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return 'Loaded $itemCount items for playlist: ${widget.playlist.title}';
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}
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/// Navigate from app bar down to content - overridden to handle both grid and list
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@override
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void navigateToGrid() {
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if (!hasItems) return;
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if (widget.playlist.smart) {
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super.navigateToGrid();
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} else {
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setState(() {
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isAppBarFocused = false;
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});
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_listFocusNode.requestFocus();
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}
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}
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/// Get the correct PlexClient for this playlist's server
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PlexClient _getClientForPlaylist() {
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return context.getClientForServer(widget.playlist.serverId!);
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}
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Future<void> _downloadPlaylist() async {
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final downloadProvider = Provider.of<DownloadProvider>(context, listen: false);
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try {
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final result = await showPlaylistDownloadOptionsAndQueue(
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context,
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playlistMetadata: _playlistAsMetadata(),
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items: items,
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client: client,
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downloadProvider: downloadProvider,
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);
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if (result == null || !mounted) return;
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showSuccessSnackBar(context, result.toSnackBarMessage());
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} on CellularDownloadBlockedException {
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if (mounted) {
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showErrorSnackBar(context, t.settings.cellularDownloadBlocked);
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}
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} catch (e) {
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if (mounted) {
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showErrorSnackBar(context, t.messages.errorLoading(error: e.toString()));
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}
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}
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}
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Future<void> _deletePlaylist() async {
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final confirmed = await showDeleteConfirmation(
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context,
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title: t.playlists.deleteConfirm,
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message: t.playlists.deleteMessage(name: widget.playlist.title),
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);
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if (confirmed && mounted) {
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final success = await client.deletePlaylist(widget.playlist.ratingKey);
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if (mounted) {
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if (success) {
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showSuccessSnackBar(context, t.playlists.deleted);
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Navigator.pop(context); // Return to playlists screen
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} else {
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showErrorSnackBar(context, t.playlists.errorDeleting);
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}
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}
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}
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}
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/// Get the afterPlaylistItemId for reordering at the given index.
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/// Returns null if validation fails, showing an error if [showError] is true.
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int? _getAfterPlaylistItemId(int newIndex, {bool showError = true}) {
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if (newIndex == 0) return 0;
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final afterItem = items[newIndex - 1];
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if (afterItem.playlistItemID == null) {
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appLogger.e('Cannot reorder: after item missing playlistItemID');
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if (showError && mounted) showErrorSnackBar(context, t.playlists.errorReordering);
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return null;
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}
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return afterItem.playlistItemID!;
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}
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Future<void> _onReorder(int oldIndex, int newIndex) async {
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// Adjust newIndex if moving down in the list
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if (newIndex > oldIndex) {
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newIndex--;
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}
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// Can't reorder if indices are the same
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if (oldIndex == newIndex) return;
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final movedItem = items[oldIndex];
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// Check if item has playlistItemID (required for reordering)
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if (movedItem.playlistItemID == null) {
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appLogger.e('Cannot reorder: item missing playlistItemID');
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if (mounted) {
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showErrorSnackBar(context, t.playlists.errorReordering);
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}
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return;
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}
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// Determine the "after" item ID
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final afterPlaylistItemId = _getAfterPlaylistItemId(newIndex);
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if (afterPlaylistItemId == null) return;
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appLogger.d('Reordering item from $oldIndex to $newIndex (after ID: $afterPlaylistItemId)');
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// Optimistically update UI
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setState(() {
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final item = items.removeAt(oldIndex);
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items.insert(newIndex, item);
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});
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// Call API to persist the change
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final success = await client.movePlaylistItem(
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playlistId: widget.playlist.ratingKey,
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playlistItemId: movedItem.playlistItemID!,
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afterPlaylistItemId: afterPlaylistItemId,
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);
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if (!success) {
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// Revert on failure
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appLogger.e('Failed to reorder playlist item, reverting UI');
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if (mounted) {
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setState(() {
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final item = items.removeAt(newIndex);
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items.insert(oldIndex, item);
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});
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showErrorSnackBar(context, t.playlists.errorReordering);
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}
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}
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}
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/// Persist a move that was already done in the UI (during move mode).
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/// The item is already at newIndex in the items list.
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Future<void> _persistMoveToServer(int originalIndex, int newIndex) async {
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// Item is already at newIndex in the list
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final movedItem = items[newIndex];
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// Check if item has playlistItemID (required for reordering)
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if (movedItem.playlistItemID == null) {
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appLogger.e('Cannot persist move: item missing playlistItemID');
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if (mounted) {
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showErrorSnackBar(context, t.playlists.errorReordering);
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_revertMove(newIndex, originalIndex);
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}
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return;
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}
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// Determine the "after" item ID based on where the item is now
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final afterPlaylistItemId = _getAfterPlaylistItemId(newIndex, showError: false);
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if (afterPlaylistItemId == null) {
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if (mounted) {
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showErrorSnackBar(context, t.playlists.errorReordering);
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_revertMove(newIndex, originalIndex);
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}
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return;
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}
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appLogger.d('Persisting move from $originalIndex to $newIndex (after ID: $afterPlaylistItemId)');
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// Call API to persist the change (UI is already updated)
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final success = await client.movePlaylistItem(
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playlistId: widget.playlist.ratingKey,
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playlistItemId: movedItem.playlistItemID!,
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afterPlaylistItemId: afterPlaylistItemId,
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);
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if (!success) {
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// Revert on failure
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appLogger.e('Failed to persist move, reverting UI');
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if (mounted) {
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_revertMove(newIndex, originalIndex);
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showErrorSnackBar(context, t.playlists.errorReordering);
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}
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}
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}
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/// Revert a move in the UI by moving item from [fromIndex] back to [toIndex].
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void _revertMove(int fromIndex, int toIndex) {
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setState(() {
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final item = items.removeAt(fromIndex);
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items.insert(toIndex, item);
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_focusedIndex = toIndex;
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});
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}
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Future<void> _removeItem(int index) async {
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if (items.isEmpty || index < 0 || index >= items.length) return;
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final item = items[index];
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// Check if item has playlistItemID (required for removal)
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if (item.playlistItemID == null) {
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appLogger.e('Cannot remove: item missing playlistItemID');
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if (mounted) {
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showErrorSnackBar(context, t.playlists.errorRemoving);
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}
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return;
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}
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appLogger.d('Removing item ${item.title} (playlistItemID: ${item.playlistItemID}) from playlist');
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// Optimistically update UI
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setState(() {
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items.removeAt(index);
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if (_focusedIndex >= items.length) {
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_focusedIndex = (items.length - 1).clamp(0, items.length);
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}
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if (items.isEmpty) {
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_focusedColumn = 0;
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}
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});
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// Call API to persist the change
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final success = await client.removeFromPlaylist(
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playlistId: widget.playlist.ratingKey,
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playlistItemId: item.playlistItemID.toString(),
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);
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if (mounted) {
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if (success) {
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showSuccessSnackBar(context, t.playlists.itemRemoved);
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} else {
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// Revert on failure
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appLogger.e('Failed to remove playlist item, reverting UI');
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setState(() {
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items.insert(index, item);
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_focusedIndex = index;
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});
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showErrorSnackBar(context, t.playlists.errorRemoving);
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}
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}
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}
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Future<void> _playFromItem(int index) async {
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if (items.isEmpty || index < 0 || index >= items.length) return;
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final plexClient = _getClientForPlaylist();
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final selectedItem = items[index];
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final launcher = PlayQueueLauncher(
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context: context,
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client: plexClient,
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serverId: widget.playlist.serverId,
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serverName: widget.playlist.serverName,
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);
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await launcher.launchFromPlaylistItem(
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playlist: widget.playlist,
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selectedItem: selectedItem,
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showLoadingIndicator: true,
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);
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}
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/// Ensure the focused item is visible in the list using scroll arithmetic.
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/// Uses estimated item height instead of per-item GlobalKeys.
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void _ensureFocusedVisible() {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted || !scrollController.hasClients) return;
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final targetOffset = _focusedIndex * _estimatedItemHeight;
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final viewportHeight = scrollController.position.viewportDimension;
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final currentOffset = scrollController.offset;
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// Check if the item is outside the visible area (with some padding)
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if (targetOffset < currentOffset || targetOffset > currentOffset + viewportHeight - _estimatedItemHeight) {
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// Scroll so the item sits ~25% from the top of the viewport
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final scrollTo = (targetOffset - viewportHeight * 0.25).clamp(
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scrollController.position.minScrollExtent,
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scrollController.position.maxScrollExtent,
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);
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scrollController.animateTo(scrollTo, duration: const Duration(milliseconds: 200), curve: Curves.easeOut);
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}
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});
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}
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/// Handle key events for list navigation
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KeyEventResult _handleListKeyEvent(FocusNode _, KeyEvent event) {
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final key = event.logicalKey;
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final backResult = handleBackKeyAction(event, () {
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if (_movingIndex != null) {
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// Cancel move mode, set flag to prevent PopScope exit
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backHandledByKeyEvent = true;
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_cancelMoveMode();
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} else {
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// Navigate to app bar on BACK, set flag to prevent PopScope exit
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handleBackFromContent();
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}
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});
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if (backResult != KeyEventResult.ignored) {
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return backResult;
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}
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if (event is! KeyDownEvent) return KeyEventResult.ignored;
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if (_movingIndex != null) {
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// Move mode - arrows reorder the item
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if (key.isUpKey && _movingIndex! > 0) {
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setState(() {
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final item = items.removeAt(_movingIndex!);
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items.insert(_movingIndex! - 1, item);
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_movingIndex = _movingIndex! - 1;
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_focusedIndex = _movingIndex!;
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});
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_ensureFocusedVisible();
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return KeyEventResult.handled;
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}
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if (key.isDownKey && _movingIndex! < items.length - 1) {
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setState(() {
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final item = items.removeAt(_movingIndex!);
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items.insert(_movingIndex! + 1, item);
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_movingIndex = _movingIndex! + 1;
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_focusedIndex = _movingIndex!;
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});
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_ensureFocusedVisible();
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return KeyEventResult.handled;
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}
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if (key.isSelectKey) {
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// Confirm move - persist to server (UI is already updated during move)
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final oldIndex = _originalIndex!;
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final newIndex = _movingIndex!;
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setState(() {
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_movingIndex = null;
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_originalIndex = null;
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_originalOrder = null;
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// Keep focus on the moved item at its new position
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_focusedIndex = newIndex;
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_focusedColumn = 0;
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});
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// Persist the change via API (list is already in correct order)
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_persistMoveToServer(oldIndex, newIndex);
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return KeyEventResult.handled;
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}
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} else {
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// Navigation mode
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if (key.isUpKey) {
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if (_focusedIndex > 0) {
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setState(() {
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_focusedIndex--;
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_focusedColumn = 0; // Reset to row when changing rows
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});
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_ensureFocusedVisible();
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} else {
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// First item - navigate to app bar
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navigateToAppBar();
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}
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return KeyEventResult.handled;
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}
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if (key.isDownKey && _focusedIndex < items.length - 1) {
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setState(() {
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_focusedIndex++;
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_focusedColumn = 0; // Reset to row when changing rows
|
|
});
|
|
_ensureFocusedVisible();
|
|
return KeyEventResult.handled;
|
|
}
|
|
if (key.isLeftKey) {
|
|
// Navigate left within columns
|
|
if (_focusedColumn == 0 && !widget.playlist.smart) {
|
|
// Go to drag handle (column 1)
|
|
setState(() => _focusedColumn = 1);
|
|
return KeyEventResult.handled;
|
|
} else if (_focusedColumn == 2) {
|
|
// Go back to content
|
|
setState(() => _focusedColumn = 0);
|
|
return KeyEventResult.handled;
|
|
}
|
|
}
|
|
if (key.isRightKey) {
|
|
// Navigate right within columns
|
|
if (_focusedColumn == 0) {
|
|
// Go to remove button (column 2)
|
|
setState(() => _focusedColumn = 2);
|
|
return KeyEventResult.handled;
|
|
} else if (_focusedColumn == 1) {
|
|
// Go to content from drag handle
|
|
setState(() => _focusedColumn = 0);
|
|
return KeyEventResult.handled;
|
|
}
|
|
}
|
|
if (key.isSelectKey) {
|
|
if (_focusedColumn == 0) {
|
|
// Play from this item
|
|
_playFromItem(_focusedIndex);
|
|
} else if (_focusedColumn == 1 && !widget.playlist.smart) {
|
|
// Enter move mode
|
|
setState(() {
|
|
_movingIndex = _focusedIndex;
|
|
_originalIndex = _focusedIndex;
|
|
_originalOrder = List.from(items);
|
|
});
|
|
} else if (_focusedColumn == 2) {
|
|
// Remove item
|
|
_removeItem(_focusedIndex);
|
|
}
|
|
return KeyEventResult.handled;
|
|
}
|
|
}
|
|
|
|
return KeyEventResult.ignored;
|
|
}
|
|
|
|
/// Cancel move mode if active, returns true if cancelled
|
|
bool _cancelMoveMode() {
|
|
if (_movingIndex != null) {
|
|
setState(() {
|
|
if (_originalOrder != null) {
|
|
items = List.from(_originalOrder!);
|
|
}
|
|
_focusedIndex = _originalIndex ?? 0;
|
|
_movingIndex = null;
|
|
_originalIndex = null;
|
|
_originalOrder = null;
|
|
});
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// Handle back navigation for PopScope - extends mixin with move mode support
|
|
bool _handleBackNavigation() {
|
|
// If BACK was already handled by a key event, don't pop
|
|
if (backHandledByKeyEvent) {
|
|
backHandledByKeyEvent = false;
|
|
return false;
|
|
}
|
|
|
|
// If in move mode, cancel move instead of navigating
|
|
if (_movingIndex != null) {
|
|
_cancelMoveMode();
|
|
return false;
|
|
}
|
|
|
|
return handleBackNavigation();
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final isKeyboardMode = InputModeTracker.isKeyboardMode(context);
|
|
|
|
// For regular playlists, wrap the scroll view with the Focus widget
|
|
// (Focus is a RenderObject widget and cannot directly wrap a sliver)
|
|
final needsListFocus = !widget.playlist.smart && items.isNotEmpty;
|
|
|
|
Widget scrollView = CustomScrollView(
|
|
controller: scrollController,
|
|
slivers: [
|
|
CustomAppBar(
|
|
title: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Text(widget.playlist.title, style: const TextStyle(fontSize: 16)),
|
|
if (widget.playlist.smart)
|
|
Row(
|
|
mainAxisSize: MainAxisSize.min,
|
|
children: [
|
|
AppIcon(
|
|
Symbols.auto_awesome_rounded,
|
|
fill: 1,
|
|
size: 12,
|
|
color: Theme.of(context).colorScheme.primary,
|
|
),
|
|
const SizedBox(width: 4),
|
|
Text(
|
|
t.playlists.smartPlaylist,
|
|
style: TextStyle(
|
|
fontSize: 11,
|
|
color: Theme.of(context).colorScheme.primary,
|
|
fontWeight: FontWeight.normal,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
actions: buildFocusableAppBarActions(),
|
|
),
|
|
...buildStateSlivers(),
|
|
if (items.isNotEmpty)
|
|
if (widget.playlist.smart)
|
|
// Smart playlists: Use focusable grid view (cannot be reordered)
|
|
buildFocusableGrid(items: items, onRefresh: updateItem)
|
|
else
|
|
// Regular playlists: Use sliver reorderable list
|
|
_buildReorderableList(isKeyboardMode),
|
|
],
|
|
);
|
|
|
|
if (needsListFocus) {
|
|
scrollView = Focus(
|
|
autofocus: isKeyboardMode && !isAppBarFocused,
|
|
focusNode: _listFocusNode,
|
|
onKeyEvent: _handleListKeyEvent,
|
|
onFocusChange: (hasFocus) {
|
|
if (hasFocus && mounted) {
|
|
setState(() {
|
|
isAppBarFocused = false;
|
|
});
|
|
}
|
|
},
|
|
child: scrollView,
|
|
);
|
|
}
|
|
|
|
return PopScope(
|
|
canPop: false,
|
|
onPopInvokedWithResult: (didPop, result) {
|
|
if (BackKeyCoordinator.consumeIfHandled()) return;
|
|
if (didPop) return;
|
|
final shouldPop = _handleBackNavigation();
|
|
if (shouldPop && mounted) {
|
|
Navigator.pop(context);
|
|
}
|
|
},
|
|
child: Scaffold(body: scrollView),
|
|
);
|
|
}
|
|
|
|
/// Build a reorderable list for regular playlists with focus support
|
|
Widget _buildReorderableList(bool _) {
|
|
return SliverReorderableList(
|
|
onReorder: _onReorder,
|
|
itemCount: items.length,
|
|
itemBuilder: (context, index) {
|
|
final item = items[index];
|
|
// Check keyboard mode directly to ensure we get latest value
|
|
final inKeyboardMode = InputModeTracker.isKeyboardMode(context);
|
|
final isFocused = inKeyboardMode && index == _focusedIndex && !isAppBarFocused;
|
|
final isMoving = index == _movingIndex;
|
|
|
|
return RepaintBoundary(
|
|
key: ValueKey(item.playlistItemID ?? item.ratingKey),
|
|
child: PlaylistItemCard(
|
|
item: item,
|
|
index: index,
|
|
onRemove: () => _removeItem(index),
|
|
onTap: () => _playFromItem(index),
|
|
onRefresh: updateItem,
|
|
canReorder: !widget.playlist.smart,
|
|
isFocused: isFocused,
|
|
focusedColumn: isFocused ? _focusedColumn : null,
|
|
isMoving: isMoving,
|
|
),
|
|
);
|
|
},
|
|
);
|
|
}
|
|
}
|