619 lines
24 KiB
Dart
619 lines
24 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:plezy/widgets/app_icon.dart';
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import 'package:material_symbols_icons/symbols.dart';
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import '../focus/dpad_navigator.dart';
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import '../focus/focus_theme.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 '../services/settings_service.dart';
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import 'settings_builder.dart';
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import '../utils/grid_size_calculator.dart';
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import '../utils/layout_constants.dart';
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import '../utils/platform_detector.dart';
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import '../theme/mono_tokens.dart';
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import '../focus/locked_hub_controller.dart';
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import '../media/media_hub.dart';
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import '../media/media_item.dart';
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import '../mixins/mounted_set_state_mixin.dart';
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import '../screens/hub_detail_screen.dart';
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import '../utils/media_navigation_helper.dart';
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import 'focus_builders.dart';
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import 'media_card.dart';
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import '../utils/scroll_utils.dart';
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import 'horizontal_scroll_with_arrows.dart';
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import '../i18n/strings.g.dart';
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/// Shared hub section widget used in both discover and library screens
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/// Displays a hub title with icon and a horizontal scrollable list of items
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///
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/// Uses a "locked" focus pattern where:
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/// - A single Focus widget at the hub level intercepts ALL arrow keys
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/// - Visual focus index is tracked in state (not Flutter's focus system)
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/// - Children render focus visuals based on the passed index
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/// - Focus never "escapes" to random elements
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class HubSection extends StatefulWidget {
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final MediaHub hub;
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final IconData icon;
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final void Function(String)? onRefresh;
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final VoidCallback? onRemoveFromContinueWatching;
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final bool isInContinueWatching;
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final bool usesContinueWatchingAction;
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final bool showServerName;
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final Future<List<MediaItem>> Function()? loadMoreItems;
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/// Reports the current focused media item. Used by TV spotlight layouts.
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final ValueChanged<MediaItem>? onFocusedItemChanged;
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/// Callback for vertical navigation (up/down). Return true if handled.
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final bool Function(bool isUp)? onVerticalNavigation;
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/// Called when the user presses BACK.
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/// Used to navigate focus back to the tab bar.
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final VoidCallback? onBack;
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/// Called when the user presses UP while at the topmost item (first hub).
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/// Used to navigate focus to the tab bar.
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final VoidCallback? onNavigateUp;
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/// Called when the user presses LEFT while at the leftmost item (index 0).
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/// Used to navigate focus to the sidebar.
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final VoidCallback? onNavigateToSidebar;
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/// When true, removes internal horizontal padding (header + list).
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/// Use when the parent already provides edge spacing (e.g. inside Padding(16)).
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final bool inset;
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/// Vertical viewport alignment when this hub is focused.
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final double focusScrollAlignment;
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const HubSection({
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super.key,
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required this.hub,
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required this.icon,
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this.onRefresh,
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this.onRemoveFromContinueWatching,
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this.isInContinueWatching = false,
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bool? usesContinueWatchingAction,
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this.showServerName = false,
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this.loadMoreItems,
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this.onFocusedItemChanged,
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this.onVerticalNavigation,
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this.onBack,
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this.onNavigateUp,
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this.onNavigateToSidebar,
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this.inset = false,
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this.focusScrollAlignment = 0.3,
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}) : usesContinueWatchingAction = usesContinueWatchingAction ?? isInContinueWatching;
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@override
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State<HubSection> createState() => HubSectionState();
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}
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class HubSectionState extends State<HubSection> with MountedSetStateMixin {
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static const _longPressDuration = Duration(milliseconds: 500);
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late FocusNode _hubFocusNode;
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final ScrollController _scrollController = ScrollController();
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/// Current visual focus index (not tied to Flutter's focus system)
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int _focusedIndex = 0;
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double _itemExtent = 0;
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double _leadingPaddingFor(bool isTv) => widget.inset
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? 0.0
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: isTv
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? TvLayoutConstants.shelfHorizontalInset
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: 12.0;
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double get _leadingPadding => _leadingPaddingFor(PlatformDetector.isTV());
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Timer? _longPressTimer;
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bool _isSelectKeyDown = false;
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bool _longPressTriggered = false;
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@override
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void initState() {
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super.initState();
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_hubFocusNode = FocusNode(debugLabel: 'hub_${widget.hub.id}');
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_hubFocusNode.addListener(_onFocusChange);
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}
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/// Total item count including the optional "View All" card
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int get _totalItemCount => widget.hub.items.length + (widget.hub.more ? 1 : 0);
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@override
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void didUpdateWidget(HubSection oldWidget) {
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super.didUpdateWidget(oldWidget);
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if (widget.hub.id != oldWidget.hub.id) {
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_itemKeys.clear();
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_mediaCardKeys.clear();
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} else if (widget.hub.items.length != oldWidget.hub.items.length || widget.hub.more != oldWidget.hub.more) {
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_itemKeys.removeWhere((index, _) => index >= _totalItemCount);
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_mediaCardKeys.removeWhere((index, _) => index >= widget.hub.items.length);
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}
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if (widget.hub.items.length != oldWidget.hub.items.length || widget.hub.more != oldWidget.hub.more) {
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final maxIndex = _totalItemCount == 0 ? 0 : _totalItemCount - 1;
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if (_focusedIndex > maxIndex) {
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_focusedIndex = maxIndex;
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}
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}
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}
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@override
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void dispose() {
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_longPressTimer?.cancel();
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_hubFocusNode.removeListener(_onFocusChange);
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_hubFocusNode.dispose();
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_scrollController.dispose();
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super.dispose();
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}
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void _onFocusChange() {
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// Reset long press state when focus is lost
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if (!_hubFocusNode.hasFocus) {
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_longPressTimer?.cancel();
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_isSelectKeyDown = false;
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_longPressTriggered = false;
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} else {
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_notifyFocusedItemChanged();
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}
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// ignore: no-empty-block - setState triggers rebuild to update focus styling
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setStateIfMounted(() {});
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}
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/// Request focus on this hub at a specific item index
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void requestFocusAt(int index) {
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if (_totalItemCount == 0) return;
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final clamped = index.clamp(0, _totalItemCount - 1).toInt();
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_focusedIndex = clamped;
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// Remember this position for this specific hub
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HubFocusMemory.setForHub(widget.hub.id, clamped);
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_notifyFocusedItemChanged();
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_scrollToIndex(clamped);
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_hubFocusNode.requestFocus();
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// ignore: no-empty-block - setState triggers rebuild to update focus styling
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setStateIfMounted(() {});
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_scrollHubIntoView();
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}
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/// Request focus using the stored memory for this hub
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void requestFocusFromMemory() {
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final index = HubFocusMemory.getForHub(widget.hub.id, _totalItemCount);
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requestFocusAt(index);
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}
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/// Scroll this hub into view in the parent scroll view
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void _scrollHubIntoView() {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted) return;
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Scrollable.ensureVisible(
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context,
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alignment: widget.focusScrollAlignment,
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duration: const Duration(milliseconds: 200),
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curve: Curves.easeOut,
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);
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});
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}
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/// Check if this hub currently has focus
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bool get hasFocusedItem => _hubFocusNode.hasFocus;
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/// Get the number of items in this hub
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int get itemCount => _totalItemCount;
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/// Scroll to center the item at the given index
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void _scrollToIndex(int index, {bool animate = true}) {
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scrollListToIndex(
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_scrollController,
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index,
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itemExtent: _itemExtent,
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leadingPadding: _leadingPadding,
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animate: animate,
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);
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if (index >= 0 && index < _totalItemCount) {
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scrollKeyedChildToHorizontalCenter(
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_scrollController,
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_itemKeyFor(index),
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animate: animate,
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isCurrent: () => _focusedIndex == index && index < _totalItemCount,
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);
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}
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}
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/// Handle ALL key events at the hub level
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KeyEventResult _handleKeyEvent(FocusNode _, KeyEvent event) {
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final key = event.logicalKey;
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if (key.isSelectKey) {
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if (event is KeyDownEvent) {
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if (!_isSelectKeyDown) {
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_isSelectKeyDown = true;
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_longPressTriggered = false;
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_longPressTimer?.cancel();
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_longPressTimer = Timer(_longPressDuration, () {
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if (!mounted) return;
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if (_isSelectKeyDown) {
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_longPressTriggered = true;
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SelectKeyUpSuppressor.suppressSelectUntilKeyUp();
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_showContextMenuForCurrentItem();
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}
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});
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}
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return KeyEventResult.handled;
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} else if (event is KeyRepeatEvent) {
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return KeyEventResult.handled;
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} else if (event is KeyUpEvent) {
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final timerWasActive = _longPressTimer?.isActive ?? false;
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_longPressTimer?.cancel();
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if (!_longPressTriggered && timerWasActive && _isSelectKeyDown) {
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_activateCurrentItem();
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}
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_isSelectKeyDown = false;
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_longPressTriggered = false;
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return KeyEventResult.handled;
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}
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}
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if (widget.onBack != null) {
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final backResult = handleBackKeyAction(event, widget.onBack!);
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if (backResult != KeyEventResult.ignored) {
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return backResult;
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}
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}
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// Handle key down and repeat events
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if (!event.isActionable) {
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return KeyEventResult.ignored;
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}
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final totalCount = _totalItemCount;
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if (totalCount == 0) return KeyEventResult.ignored;
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// Left: move to previous item, or navigate to sidebar at left edge
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if (key.isLeftKey) {
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if (_focusedIndex > 0) {
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setState(() {
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_focusedIndex--;
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});
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HubFocusMemory.setForHub(widget.hub.id, _focusedIndex);
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_notifyFocusedItemChanged();
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_scrollToIndex(_focusedIndex);
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} else if (widget.onNavigateToSidebar != null) {
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// At leftmost item: navigate to sidebar
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widget.onNavigateToSidebar!();
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}
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// Always consume to prevent focus escape
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return KeyEventResult.handled;
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}
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// Right: move to next item, ALWAYS consume to prevent escape
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if (key.isRightKey) {
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if (_focusedIndex < totalCount - 1) {
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setState(() {
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_focusedIndex++;
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});
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HubFocusMemory.setForHub(widget.hub.id, _focusedIndex);
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_notifyFocusedItemChanged();
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_scrollToIndex(_focusedIndex);
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}
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return KeyEventResult.handled;
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}
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// Up/Down: delegate to parent for vertical hub navigation, ALWAYS consume
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if (key.isUpKey) {
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final handled = widget.onVerticalNavigation?.call(true) ?? false;
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// If not handled (at top boundary) and we have onNavigateUp, call it
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if (!handled && widget.onNavigateUp != null) {
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widget.onNavigateUp!();
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}
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return KeyEventResult.handled;
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}
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if (key.isDownKey) {
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widget.onVerticalNavigation?.call(false);
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return KeyEventResult.handled;
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}
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// Context menu key: show context menu
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if (key.isContextMenuKey) {
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_showContextMenuForCurrentItem();
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return KeyEventResult.handled;
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}
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return KeyEventResult.ignored;
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}
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/// GlobalKeys for MediaCards to access their state (for context menu)
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final Map<int, GlobalKey> _itemKeys = {};
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final Map<int, GlobalKey<MediaCardState>> _mediaCardKeys = {};
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GlobalKey _itemKeyFor(int index) {
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return _itemKeys.putIfAbsent(index, () => GlobalKey());
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}
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GlobalKey<MediaCardState> _getMediaCardKey(int index) {
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return _mediaCardKeys.putIfAbsent(index, () => GlobalKey<MediaCardState>());
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}
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void _notifyFocusedItemChanged() {
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if (_focusedIndex < 0 || _focusedIndex >= widget.hub.items.length) return;
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widget.onFocusedItemChanged?.call(widget.hub.items[_focusedIndex]);
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}
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void _activateCurrentItem() {
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if (_focusedIndex == widget.hub.items.length && widget.hub.more) {
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_navigateToHubDetail(context);
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return;
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}
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if (_focusedIndex >= widget.hub.items.length) return;
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final item = widget.hub.items[_focusedIndex];
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_navigateToItem(item);
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}
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void _showContextMenuForCurrentItem() {
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// No context menu for the "View All" card
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if (_focusedIndex >= widget.hub.items.length) return;
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_mediaCardKeys[_focusedIndex]?.currentState?.showContextMenu();
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}
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Future<void> _navigateToItem(MediaItem item) async {
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await navigateToMediaItem(
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context,
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item,
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onRefresh: widget.onRefresh,
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playDirectly: widget.usesContinueWatchingAction,
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);
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}
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void _navigateToHubDetail(BuildContext context) {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => HubDetailScreen(
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hub: widget.hub,
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loadItems: widget.loadMoreItems,
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isInContinueWatching: widget.isInContinueWatching,
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usesContinueWatchingAction: widget.usesContinueWatchingAction,
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onRemoveFromContinueWatching: widget.onRemoveFromContinueWatching,
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),
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),
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);
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}
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double _getTvCardWidth(double availableWidth, int density, double leadingPadding) {
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final f = LibraryDensity.factor(density);
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final targetCards = 7.0 - (f * 2.0);
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final usableWidth = (availableWidth - (leadingPadding * 2)).clamp(1.0, double.infinity);
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return (usableWidth / targetCards).clamp(210.0, 340.0);
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}
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@override
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Widget build(BuildContext context) {
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final hasFocus = _hubFocusNode.hasFocus;
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final isKeyboardMode = InputModeTracker.isKeyboardMode(context);
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final isTv = PlatformDetector.isTV();
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final leadingPadding = _leadingPaddingFor(isTv);
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final titleStyle = Theme.of(
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context,
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).textTheme.titleLarge?.copyWith(fontSize: isTv ? 26 : null, fontWeight: isTv ? FontWeight.w700 : null);
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return Padding(
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padding: .only(bottom: isTv && !widget.inset ? TvLayoutConstants.shelfVerticalGap : 0),
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child: Column(
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crossAxisAlignment: .start,
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mainAxisSize: .min,
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children: [
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// Hub header (NOT focusable - titles should not be focusable)
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Padding(
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padding: widget.inset
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? EdgeInsets.symmetric(vertical: isTv ? 6 : 2)
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: EdgeInsets.fromLTRB(leadingPadding - 4, isTv ? 6 : 2, 8, isTv ? 8 : 2),
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child: ExcludeFocus(
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child: InkWell(
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mouseCursor: widget.hub.more ? SystemMouseCursors.click : MouseCursor.defer,
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onTap: widget.hub.more ? () => _navigateToHubDetail(context) : null,
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borderRadius: BorderRadius.circular(tokens(context).radiusSm),
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child: Padding(
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padding: widget.inset
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? const EdgeInsets.symmetric(vertical: 2)
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: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
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child: Row(
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mainAxisSize: .min,
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children: [
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AppIcon(widget.icon, fill: 1, size: isTv ? 28 : null),
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SizedBox(width: isTv ? 12 : 8),
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Flexible(
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child: Text(widget.hub.title, style: titleStyle, overflow: .ellipsis, maxLines: 1),
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),
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if (widget.showServerName && widget.hub.serverName != null) ...[
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const SizedBox(width: 8),
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Text(
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'•',
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style: Theme.of(context).textTheme.titleMedium?.copyWith(
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color: Theme.of(context).colorScheme.primary.withValues(alpha: 0.7),
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),
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),
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const SizedBox(width: 8),
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Text(
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widget.hub.serverName!,
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style: Theme.of(context).textTheme.titleMedium?.copyWith(
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color: Theme.of(context).colorScheme.primary.withValues(alpha: 0.7),
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),
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),
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],
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if (widget.hub.more && !isKeyboardMode) ...[
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const SizedBox(width: 4),
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AppIcon(Symbols.chevron_right_rounded, fill: 1, size: isTv ? 26 : 20),
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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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),
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if (widget.hub.items.isNotEmpty)
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Focus(
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focusNode: _hubFocusNode,
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onKeyEvent: _handleKeyEvent,
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child: SettingsBuilder(
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prefs: const [SettingsService.libraryDensity, SettingsService.episodePosterMode],
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builder: (context) => LayoutBuilder(
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builder: (context, constraints) {
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final svc = SettingsService.instanceOrNull;
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if (svc == null) return const SizedBox.shrink();
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final density = svc.read(SettingsService.libraryDensity);
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final baseCardWidth = isTv
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? _getTvCardWidth(constraints.maxWidth, density, leadingPadding)
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: GridSizeCalculator.getCellWidth(constraints.maxWidth, context, density);
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final episodePosterMode = svc.read(SettingsService.episodePosterMode);
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final hasEpisodes = widget.hub.items.any((item) => item.usesWideAspectRatio(episodePosterMode));
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final hasNonEpisodes = widget.hub.items.any((item) => !item.usesWideAspectRatio(episodePosterMode));
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final isMixedHub = hasEpisodes && hasNonEpisodes;
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final isEpisodeOnlyHub = hasEpisodes && !hasNonEpisodes;
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// Use 16:9 for episode-only hubs OR mixed hubs (with episode thumbnail mode)
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final useWideLayout =
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episodePosterMode == EpisodePosterMode.episodeThumbnail && (isEpisodeOnlyHub || isMixedHub);
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// Card dimensions based on hub type
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const wideCardMultiplier = 1.5;
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final cardWidth = useWideLayout ? baseCardWidth * wideCardMultiplier : baseCardWidth;
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final posterWidth = cardWidth - 6; // 3px padding on each side
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final posterHeight = useWideLayout
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? posterWidth *
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(9 / 16) // 16:9 for wide layout
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: posterWidth * 1.5; // 2:3 for poster layout
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final containerHeight = posterHeight + (isTv ? 48 : 33);
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final focusBorderWidth = FocusTheme.focusBorderWidth;
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final focusExtra = focusBorderWidth * 2; // border on both sides
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_itemExtent = cardWidth + focusExtra + 4;
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return SizedBox(
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height: containerHeight + focusExtra + (isTv ? 12 : 4), // extra for scale + border top/bottom
|
|
child: HorizontalScrollWithArrows(
|
|
controller: _scrollController,
|
|
builder: (scrollController) => ListView.builder(
|
|
controller: scrollController,
|
|
scrollDirection: Axis.horizontal,
|
|
clipBehavior: Clip.none,
|
|
padding: widget.inset
|
|
? EdgeInsets.symmetric(vertical: isTv ? 6 : 2)
|
|
: EdgeInsets.symmetric(horizontal: isTv ? leadingPadding : 8, vertical: isTv ? 6 : 2),
|
|
itemCount: isKeyboardMode ? _totalItemCount : widget.hub.items.length,
|
|
itemBuilder: (context, index) {
|
|
final isItemFocused = hasFocus && index == _focusedIndex;
|
|
|
|
if (index == widget.hub.items.length) {
|
|
return Padding(
|
|
key: _itemKeyFor(index),
|
|
padding: widget.inset
|
|
? const EdgeInsets.only(right: 4)
|
|
: const EdgeInsets.symmetric(horizontal: 2),
|
|
child: FocusBuilders.buildLockedFocusWrapper(
|
|
context: context,
|
|
isFocused: isItemFocused,
|
|
onTap: () {
|
|
_onItemTapped(index);
|
|
_navigateToHubDetail(context);
|
|
},
|
|
child: SizedBox(
|
|
width: isTv ? 118 : 80,
|
|
height: containerHeight - 10,
|
|
child: Center(
|
|
child: Column(
|
|
mainAxisSize: .min,
|
|
children: [
|
|
Icon(
|
|
Symbols.arrow_forward_rounded,
|
|
size: isTv ? 42 : 32,
|
|
color: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.7),
|
|
),
|
|
const SizedBox(height: 4),
|
|
Text(
|
|
t.common.viewAll,
|
|
style: Theme.of(context).textTheme.labelMedium?.copyWith(
|
|
color: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.7),
|
|
fontSize: isTv ? 16 : null,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
final item = widget.hub.items[index];
|
|
|
|
return Padding(
|
|
key: _itemKeyFor(index),
|
|
padding: widget.inset
|
|
? const EdgeInsets.only(right: 4)
|
|
: const EdgeInsets.symmetric(horizontal: 2),
|
|
child: FocusBuilders.buildLockedFocusWrapper(
|
|
context: context,
|
|
isFocused: isItemFocused,
|
|
onTap: () => _onItemTapped(index),
|
|
onLongPress: () => _mediaCardKeys[index]?.currentState?.showContextMenu(),
|
|
delegateFocusBorder: true,
|
|
child: MediaCard(
|
|
key: _getMediaCardKey(index),
|
|
item: item,
|
|
width: cardWidth,
|
|
height: posterHeight,
|
|
onRefresh: widget.onRefresh,
|
|
onRemoveFromContinueWatching: widget.onRemoveFromContinueWatching,
|
|
forceGridMode: true,
|
|
isInContinueWatching: widget.isInContinueWatching,
|
|
usesContinueWatchingAction: widget.usesContinueWatchingAction,
|
|
mixedHubContext: isMixedHub,
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
)
|
|
else
|
|
Padding(
|
|
padding: widget.inset
|
|
? const EdgeInsets.symmetric(vertical: 8)
|
|
: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
|
|
child: Text(
|
|
t.messages.noItemsAvailable,
|
|
style: Theme.of(context).textTheme.bodySmall?.copyWith(color: Colors.grey),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
void _onItemTapped(int index) {
|
|
if (_totalItemCount == 0) return;
|
|
final clamped = index.clamp(0, _totalItemCount - 1).toInt();
|
|
setState(() {
|
|
_focusedIndex = clamped;
|
|
});
|
|
HubFocusMemory.setForHub(widget.hub.id, clamped);
|
|
_notifyFocusedItemChanged();
|
|
_scrollToIndex(clamped);
|
|
_hubFocusNode.requestFocus();
|
|
}
|
|
}
|