617 lines
23 KiB
Dart
617 lines
23 KiB
Dart
import 'dart:async';
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import '../media/catalog_item_ref.dart';
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import '../media/ids.dart';
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import 'package:flutter/material.dart';
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import 'package:material_symbols_icons/symbols.dart';
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import '../media/library_query.dart';
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import '../media/media_hub.dart';
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import '../media/media_item.dart';
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import '../media/media_server_client.dart';
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import '../media/media_sort.dart';
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import '../services/settings_service.dart';
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import '../widgets/settings_builder.dart';
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import '../widgets/system_bottom_inset.dart';
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import '../utils/app_logger.dart';
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import '../utils/continuation_pagination_coordinator.dart';
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import '../utils/error_message_utils.dart';
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import '../utils/platform_detector.dart';
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import '../utils/media_server_http_client.dart';
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import '../utils/plex_library_section_utils.dart';
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import '../utils/provider_extensions.dart';
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import '../widgets/focusable_media_card.dart';
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import '../widgets/media_card_sliver_layout.dart';
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import '../widgets/ios_status_bar_tap_scroll_to_top.dart';
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import '../widgets/desktop_app_bar.dart';
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import '../widgets/loading_indicator_box.dart';
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import '../widgets/overlay_sheet.dart';
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import '../focus/focusable_action_bar.dart';
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import '../focus/key_event_utils.dart';
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import '../mixins/grid_focus_node_mixin.dart';
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import '../mixins/paginated_item_loader.dart';
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import 'libraries/sort_bottom_sheet.dart';
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import 'libraries/content_state_builder.dart';
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import '../mixins/refreshable.dart';
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import '../i18n/strings.g.dart';
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import 'focusable_detail_screen_mixin.dart';
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/// Screen to display full content of a recommendation hub
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class HubDetailScreen extends StatefulWidget {
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final MediaHub hub;
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final Future<List<MediaItem>> Function()? loadItems;
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final bool isInContinueWatching;
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final bool usesContinueWatchingAction;
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final VoidCallback? onRemoveFromContinueWatching;
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const HubDetailScreen({
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super.key,
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required this.hub,
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this.loadItems,
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this.isInContinueWatching = false,
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bool? usesContinueWatchingAction,
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this.onRemoveFromContinueWatching,
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}) : usesContinueWatchingAction = usesContinueWatchingAction ?? isInContinueWatching;
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@override
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State<HubDetailScreen> createState() => _HubDetailScreenState();
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}
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class _HubDetailScreenState extends State<HubDetailScreen>
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with Refreshable, GridFocusNodeMixin, FocusableDetailScreenMixin, PaginatedItemLoader<MediaItem, HubDetailScreen> {
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static const int _pageSize = 200;
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List<MediaItem> _items = [];
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List<MediaItem> _filteredItems = [];
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List<MediaSort> _sortOptions = [];
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MediaSort? _selectedSort;
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bool _isSortDescending = false;
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bool _isLoading = false;
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String? _errorMessage;
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bool _replaceContinuationItems = false;
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bool _usesPaginatedLoader = false;
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late final ContinuationPaginationCoordinator<MediaItem> _continuation = ContinuationPaginationCoordinator<MediaItem>(
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loadPage: _fetchContinuationPage,
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onPage: _applyContinuationPage,
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onStateChanged: _handleContinuationStateChanged,
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onError: (error, stackTrace) =>
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appLogger.w('Failed to finish loading hub content', error: error, stackTrace: stackTrace),
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);
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/// Key for getting a context below OverlaySheetHost
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final GlobalKey _overlayChildKey = GlobalKey();
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final FocusNode _continuationRetryFocusNode = FocusNode(debugLabel: 'hub_continuation_retry');
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@override
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bool get hasItems => _filteredItems.isNotEmpty;
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@override
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List<FocusableAction> getAppBarActions() {
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return [
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FocusableAction(icon: Symbols.swap_vert_rounded, tooltip: t.libraries.sort, onPressed: _showSortBottomSheet),
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];
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}
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/// Override to add bounds check for filtered items (sorting can change item order)
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@override
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void navigateToGrid() {
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if (!hasItems) return;
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final targetIndex = shouldRestoreGridFocus && lastFocusedGridIndex! < _filteredItems.length
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? lastFocusedGridIndex!
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: 0;
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setState(() {
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isAppBarFocused = false;
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});
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_focusNodeForIndex(targetIndex).requestFocus();
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}
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FocusNode _focusNodeForIndex(int index) => focusNodeForIndex(index, firstItemFocusNode, prefix: 'hub_detail_item');
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@override
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void initState() {
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super.initState();
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scrollController.addListener(_maybeLoadNextHubPage);
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_items = widget.hub.items;
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_filteredItems = widget.hub.items;
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if (widget.hub.more) {
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_loadMoreItems();
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}
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_loadSorts();
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autoFocusFirstItemAfterLoad();
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}
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@override
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void dispose() {
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scrollController.removeListener(_maybeLoadNextHubPage);
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disposePagination();
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_continuation.dispose();
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_continuationRetryFocusNode.dispose();
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disposeFocusResources();
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super.dispose();
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}
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Future<void> _loadSorts() async {
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try {
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final serverId = widget.hub.serverId;
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if (serverId == null) {
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appLogger.w('Hub has no serverId; using default sort options');
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if (!mounted) return;
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setState(() {
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_sortOptions = _getDefaultSortOptions();
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});
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return;
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}
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// Hub ids can have various formats:
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// - /hubs/sections/1/... (Plex)
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// - /library/sections/1/all?... (Plex)
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// - /hubs/home/recentlyAdded?type=2§ionID=1 (Plex home hubs — id in query)
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// - home.recent / library.<id>.continue (Jellyfin synthesized)
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final hubKey = widget.hub.id;
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appLogger.d('Hub key: $hubKey');
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final sectionId = plexLibrarySectionIdFromString(hubKey);
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if (sectionId != null) {
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appLogger.d('Loading sorts for section: $sectionId');
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final client = context.tryGetMediaClientForServer(ServerId(serverId));
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final sorts = client == null ? const <MediaSort>[] : await client.fetchSortOptions('$sectionId');
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appLogger.d('Loaded ${sorts.length} sorts');
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if (!mounted) return;
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setState(() {
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_sortOptions = sorts.isNotEmpty ? sorts : _getDefaultSortOptions();
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});
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} else {
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appLogger.w('Could not extract section ID from hub key: $hubKey');
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if (!mounted) return;
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setState(() {
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_sortOptions = _getDefaultSortOptions();
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});
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}
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} catch (e) {
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appLogger.e('Failed to load sorts', error: e);
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if (!mounted) return;
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setState(() {
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_sortOptions = _getDefaultSortOptions();
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});
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}
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}
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/// Catalog hubs (Explore View All) hold synthesized items with no library
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/// timestamps, so a Date Added sort would silently no-op — offer only the
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/// fields those items carry.
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bool get _isCatalogHub => widget.hub.items.firstOrNull?.isCatalogItem ?? false;
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List<MediaSort> _getDefaultSortOptions() {
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return [
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MediaSort(key: 'titleSort', title: t.hubDetail.title, defaultDirection: 'asc'),
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MediaSort(key: 'year', descKey: 'year:desc', title: t.hubDetail.releaseYear, defaultDirection: 'desc'),
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if (!_isCatalogHub)
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MediaSort(key: 'addedAt', descKey: 'addedAt:desc', title: t.hubDetail.dateAdded, defaultDirection: 'desc'),
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MediaSort(key: 'rating', descKey: 'rating:desc', title: t.hubDetail.rating, defaultDirection: 'desc'),
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];
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}
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void _applySort() {
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setState(() {
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_filteredItems = List.from(_items);
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if (_selectedSort != null) {
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final sortKey = _selectedSort!.key;
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_filteredItems.sort((a, b) {
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int comparison = 0;
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switch (sortKey) {
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case 'titleSort':
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case 'title':
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comparison = (a.title ?? '').compareTo(b.title ?? '');
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break;
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case 'addedAt':
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comparison = (a.addedAt ?? 0).compareTo(b.addedAt ?? 0);
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break;
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case 'originallyAvailableAt':
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case 'year':
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comparison = (a.year ?? 0).compareTo(b.year ?? 0);
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break;
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case 'rating':
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comparison = (a.rating ?? 0).compareTo(b.rating ?? 0);
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break;
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default:
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comparison = (a.title ?? '').compareTo(b.title ?? '');
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}
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return _isSortDescending ? -comparison : comparison;
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});
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}
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});
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}
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void _showSortBottomSheet() {
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final overlayContext = _overlayChildKey.currentContext ?? context;
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MediaSort? pendingSort = _selectedSort;
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bool pendingDescending = _isSortDescending;
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bool pendingCleared = false;
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OverlaySheetController.of(overlayContext)
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.show(
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builder: (context) => SortBottomSheet(
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sortOptions: _sortOptions,
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selectedSort: _selectedSort,
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isSortDescending: _isSortDescending,
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onSortChanged: (sort, descending) {
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pendingSort = sort;
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pendingDescending = descending;
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pendingCleared = false;
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},
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onClear: () {
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pendingSort = null;
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pendingDescending = false;
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pendingCleared = true;
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},
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),
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)
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.then((_) {
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if (!mounted) return;
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted) return;
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if (pendingCleared) {
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_selectedSort = null;
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_isSortDescending = false;
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_applySort();
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} else if (pendingSort != null &&
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(pendingSort!.key != _selectedSort?.key || pendingDescending != _isSortDescending)) {
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_selectedSort = pendingSort;
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_isSortDescending = pendingDescending;
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_applySort();
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}
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});
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});
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}
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bool _shouldUsePaginatedLoader(MediaServerClient client) =>
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client.backend.usesMediaBrowserApi && widget.hub.id.endsWith('.recent');
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@override
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Future<LibraryPage<MediaItem>> fetchPage(int start, int size, AbortController? abort) async {
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final serverId = widget.hub.serverId;
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final client = serverId == null ? null : context.tryGetMediaClientForServer(ServerId(serverId));
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if (client == null) throw StateError('No media client available for paginated hub');
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return client.fetchMoreHubItemsPage(widget.hub.id, start: start, size: size, abort: abort);
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}
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@override
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void onPageLoaded(int start, List<MediaItem> items) {
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if (!_usesPaginatedLoader || start == 0 || !mounted) return;
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setState(() {
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_items = List.of(_items)..addAll(items);
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_filteredItems = List.of(_items);
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});
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_applySort();
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_scheduleNextHubPageCheck();
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}
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@override
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void onPaginationStateChanged() {
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if (mounted) setState(() {});
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}
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Future<void> _loadMoreItems() async {
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if (_isLoading) return;
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final serverId = widget.hub.serverId;
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final loader = widget.loadItems;
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if (loader == null && serverId == null) {
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appLogger.w('Hub has no serverId; cannot load more items for ${widget.hub.id}');
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return;
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}
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final client = serverId == null ? null : context.tryGetMediaClientForServer(ServerId(serverId));
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final usesCustomLoader = loader != null;
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_usesPaginatedLoader = !usesCustomLoader && client != null && _shouldUsePaginatedLoader(client);
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setState(() {
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_isLoading = true;
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_errorMessage = null;
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if (_usesPaginatedLoader) resetPaginationState();
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});
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try {
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List<MediaItem> items = const [];
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var totalCount = 0;
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var loadedCount = 0;
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var initialPageApplied = true;
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final applied = await _continuation.runNewGeneration(() async {
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if (_usesPaginatedLoader) {
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final result = await loadInitialPageWithStatus(_pageSize);
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initialPageApplied = result.applied;
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if (!result.applied) return;
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items = result.page.items;
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totalCount = result.page.totalCount;
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loadedCount = result.page.items.length;
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} else if (loader == null) {
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final page = client == null
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? const LibraryPage<MediaItem>(items: [], totalCount: 0)
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: await client.fetchMoreHubItemsPage(widget.hub.id, start: 0, size: _pageSize);
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items = _applySectionFilter(page.items);
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totalCount = page.totalCount;
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loadedCount = page.items.length;
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} else {
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items = _applySectionFilter(await loader());
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totalCount = items.length;
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loadedCount = items.length;
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}
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});
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if (!mounted || !applied || !initialPageApplied) return;
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setState(() {
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_items = List.of(items);
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_filteredItems = List.of(items);
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_isLoading = false;
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});
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_applySort();
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if (!usesCustomLoader && !_usesPaginatedLoader && client != null && loadedCount < totalCount) {
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_replaceContinuationItems = !client.backend.usesMediaBrowserApi;
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if (_replaceContinuationItems) {
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_continuation.setContinuation(startIndex: 0, totalCount: 1);
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} else {
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_continuation.setContinuation(startIndex: loadedCount, totalCount: totalCount);
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}
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unawaited(_continuation.loadRemaining());
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} else if (_usesPaginatedLoader && loadedCount < totalCount) {
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_scheduleNextHubPageCheck();
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}
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appLogger.d('Loaded ${items.length} items for hub: ${widget.hub.title}');
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} catch (e, stackTrace) {
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final message = localizedLoadErrorMessage(e, stackTrace, context: widget.hub.title);
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if (!mounted) return;
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setState(() {
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_errorMessage = message;
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_isLoading = false;
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});
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}
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}
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Future<ContinuationPage<MediaItem>> _fetchContinuationPage(int startIndex) async {
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final serverId = widget.hub.serverId;
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final client = serverId == null ? null : context.tryGetMediaClientForServer(ServerId(serverId));
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if (client == null) throw StateError('No media client available for hub continuation');
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if (_replaceContinuationItems) {
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final items = _applySectionFilter(await client.fetchMoreHubItems(widget.hub.id));
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if (items.isEmpty && _items.isNotEmpty) {
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throw StateError('Hub continuation returned no items');
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}
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return ContinuationPage(items: items, totalCount: 1, consumedCount: 1);
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}
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final page = await client.fetchMoreHubItemsPage(widget.hub.id, start: startIndex, size: _pageSize);
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return ContinuationPage(
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items: _applySectionFilter(page.items),
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totalCount: page.totalCount,
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consumedCount: page.items.length,
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);
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}
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void _applyContinuationPage(ContinuationPage<MediaItem> page) {
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if (!mounted) return;
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setState(() {
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if (_replaceContinuationItems) {
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_items = List.of(page.items);
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} else {
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_items = List.of(_items)..addAll(page.items);
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}
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_filteredItems = List.of(_items);
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});
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_applySort();
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}
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void _scheduleNextHubPageCheck() {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (mounted) _maybeLoadNextHubPage();
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});
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}
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void _maybeLoadNextHubPage() {
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if (!_usesPaginatedLoader ||
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loadedItems.length >= totalSize ||
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isPaginationLoading ||
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paginationError != null ||
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!scrollController.hasClients) {
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return;
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}
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final position = scrollController.position;
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if (position.extentAfter <= position.viewportDimension) {
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_requestNextHubPage();
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}
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}
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void _requestNextHubPage() {
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if (!_usesPaginatedLoader || loadedItems.length >= totalSize || isPaginationLoading || paginationError != null) {
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return;
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}
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ensureIndexLoaded(loadedItems.length, pageSize: _pageSize);
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}
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void _handleGridItemFocusChange(int index, bool hasFocus, {required bool isLastRow}) {
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trackGridItemFocus(index, hasFocus);
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if (hasFocus && isLastRow) _requestNextHubPage();
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}
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void _handleContinuationStateChanged() {
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if (mounted) {
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setState(() {});
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}
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}
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void _retryHubContinuation() {
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if (_usesPaginatedLoader) {
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ensureIndexLoaded(loadedItems.length, pageSize: _pageSize);
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} else {
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unawaited(_continuation.retry());
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}
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}
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List<MediaItem> _applySectionFilter(List<MediaItem> items) {
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final sectionFilter = int.tryParse(widget.hub.libraryId ?? '');
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if (sectionFilter == null) return items;
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return items.where((item) => int.tryParse(item.libraryId ?? '') == sectionFilter).toList();
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}
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Future<void> _handleItemRefresh(MediaItem source) async {
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final serverId = source.serverId;
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if (serverId == null) return;
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try {
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final updated = await context.tryGetMediaClientForServer(ServerId(serverId))?.fetchItem(source.id);
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if (updated == null || !mounted) return;
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setState(() {
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final currentItemIndex = _items.indexWhere((item) => item.globalKey == source.globalKey);
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if (currentItemIndex != -1) _items[currentItemIndex] = updated;
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final currentFilteredIndex = _filteredItems.indexWhere((item) => item.globalKey == source.globalKey);
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if (currentFilteredIndex != -1) _filteredItems[currentFilteredIndex] = updated;
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});
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if (_selectedSort != null) _applySort();
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} catch (e) {
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appLogger.d('Item refresh skipped for: ${source.globalKey}', error: e);
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}
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}
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void _handleRemoveFromContinueWatching() {
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widget.onRemoveFromContinueWatching?.call();
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unawaited(_loadMoreItems());
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}
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Object? get _pageLoadError => _usesPaginatedLoader ? paginationError : _continuation.error;
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bool get _isLoadingPage => _usesPaginatedLoader ? isPaginationLoading : _continuation.isLoading;
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@override
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void refresh() {
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_loadMoreItems();
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}
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@override
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Widget build(BuildContext context) {
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return PrimaryScrollController(
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controller: scrollController,
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child: IosStatusBarTapScrollToTop(
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controller: scrollController,
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child: OverlaySheetHost(
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// Host owns sheet + system back: a back with a sheet open closes it;
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// otherwise focus the app bar first, then pop (handleBackNavigation).
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// canPop preserves the iOS interactive swipe-back.
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canPop: PlatformDetector.isHandheldIOS(context),
|
|
onSystemBack: () {
|
|
if (BackKeyCoordinator.consumeIfHandled()) return;
|
|
if (handleBackNavigation() && mounted) Navigator.pop(context);
|
|
},
|
|
child: Scaffold(
|
|
key: _overlayChildKey,
|
|
body: CustomScrollView(
|
|
primary: true,
|
|
clipBehavior: Clip.none,
|
|
slivers: [
|
|
CustomAppBar(title: Text(widget.hub.title), pinned: true, actions: buildFocusableAppBarActions()),
|
|
if (_errorMessage != null)
|
|
SliverErrorState(message: _errorMessage!, onRetry: _loadMoreItems)
|
|
else if (_filteredItems.isEmpty && _isLoading)
|
|
LoadingIndicatorBox.sliver
|
|
else if (_filteredItems.isEmpty)
|
|
SliverFillRemaining(child: Center(child: Text(t.hubDetail.noItemsFound)))
|
|
else
|
|
SettingsBuilder(
|
|
prefs: const [
|
|
SettingsService.viewMode,
|
|
SettingsService.episodePosterMode,
|
|
SettingsService.libraryDensity,
|
|
SettingsService.tvFullCardLayout,
|
|
],
|
|
builder: (context) {
|
|
final svc = SettingsService.instance;
|
|
final viewMode = svc.read(SettingsService.viewMode);
|
|
final episodePosterMode = svc.read(SettingsService.episodePosterMode);
|
|
final libraryDensity = svc.read(SettingsService.libraryDensity);
|
|
final fullCardLayout = PlatformDetector.isTV() && svc.read(SettingsService.tvFullCardLayout);
|
|
|
|
final hasEpisodes = _filteredItems.any((item) => item.usesWideAspectRatio(episodePosterMode));
|
|
final hasNonEpisodes = _filteredItems.any((item) => !item.usesWideAspectRatio(episodePosterMode));
|
|
|
|
final isMixedHub = hasEpisodes && hasNonEpisodes;
|
|
|
|
final isEpisodeOnlyHub = hasEpisodes && !hasNonEpisodes;
|
|
|
|
final useWideLayout =
|
|
episodePosterMode == EpisodePosterMode.episodeThumbnail && (isEpisodeOnlyHub || isMixedHub);
|
|
|
|
final isSquareHub =
|
|
_filteredItems.isNotEmpty &&
|
|
_filteredItems.every((item) => item.cardShape(episodePosterMode) == CardShape.square);
|
|
|
|
return MediaCardSliverLayout(
|
|
viewMode: viewMode,
|
|
itemCount: _filteredItems.length,
|
|
density: libraryDensity,
|
|
padding: const EdgeInsets.all(8),
|
|
usePaddingAware: true,
|
|
horizontalPadding: 16,
|
|
useWideAspectRatio: useWideLayout,
|
|
fullBleedImage: fullCardLayout,
|
|
shape: isSquareHub ? CardShape.square : null,
|
|
itemBuilder: (context, position) {
|
|
final index = position.index;
|
|
final item = _filteredItems[index];
|
|
final focusNode = _focusNodeForIndex(index);
|
|
|
|
return FocusableMediaCard(
|
|
focusNode: focusNode,
|
|
item: item,
|
|
disableScale: position.disableScale,
|
|
onRefresh: _handleItemRefresh,
|
|
onRemoveFromContinueWatching: widget.isInContinueWatching
|
|
? _handleRemoveFromContinueWatching
|
|
: null,
|
|
isInContinueWatching: widget.isInContinueWatching,
|
|
usesContinueWatchingAction: widget.usesContinueWatchingAction,
|
|
onNavigateUp: position.isFirstRow ? navigateToAppBar : null,
|
|
onNavigateDown:
|
|
_pageLoadError != null && position.index >= position.itemCount - position.columnCount
|
|
? _continuationRetryFocusNode.requestFocus
|
|
: null,
|
|
onNavigateLeft: position.isGrid && position.isFirstColumn ? () {} : null,
|
|
onBack: handleBackFromContent,
|
|
onFocusChange: (hasFocus) => _handleGridItemFocusChange(
|
|
index,
|
|
hasFocus,
|
|
isLastRow: position.index >= position.itemCount - position.columnCount,
|
|
),
|
|
mixedHubContext: isMixedHub,
|
|
fullBleedImage: fullCardLayout && position.isGrid,
|
|
);
|
|
},
|
|
);
|
|
},
|
|
),
|
|
if (_filteredItems.isNotEmpty && (_isLoadingPage || _pageLoadError != null))
|
|
ContinuationStatusSliver(
|
|
error: _pageLoadError,
|
|
onRetry: _retryHubContinuation,
|
|
retryFocusNode: _continuationRetryFocusNode,
|
|
onNavigateUp: () => _focusNodeForIndex(_filteredItems.length - 1).requestFocus(),
|
|
onBack: handleBackFromContent,
|
|
),
|
|
const SliverSystemBottomInset(),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|