aves/lib/widgets/collection/app_bar.dart
2021-10-07 16:38:33 +09:00

380 lines
14 KiB
Dart

import 'dart:async';
import 'package:aves/app_mode.dart';
import 'package:aves/model/actions/entry_set_actions.dart';
import 'package:aves/model/entry.dart';
import 'package:aves/model/filters/filters.dart';
import 'package:aves/model/selection.dart';
import 'package:aves/model/settings/settings.dart';
import 'package:aves/model/source/collection_lens.dart';
import 'package:aves/model/source/collection_source.dart';
import 'package:aves/model/source/enums.dart';
import 'package:aves/services/common/services.dart';
import 'package:aves/theme/durations.dart';
import 'package:aves/widgets/collection/entry_set_action_delegate.dart';
import 'package:aves/widgets/collection/filter_bar.dart';
import 'package:aves/widgets/common/app_bar_subtitle.dart';
import 'package:aves/widgets/common/app_bar_title.dart';
import 'package:aves/widgets/common/basic/menu.dart';
import 'package:aves/widgets/common/extensions/build_context.dart';
import 'package:aves/widgets/dialogs/add_shortcut_dialog.dart';
import 'package:aves/widgets/dialogs/aves_selection_dialog.dart';
import 'package:aves/widgets/search/search_button.dart';
import 'package:aves/widgets/search/search_delegate.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/scheduler.dart';
import 'package:provider/provider.dart';
import 'package:tuple/tuple.dart';
class CollectionAppBar extends StatefulWidget {
final ValueNotifier<double> appBarHeightNotifier;
final CollectionLens collection;
const CollectionAppBar({
Key? key,
required this.appBarHeightNotifier,
required this.collection,
}) : super(key: key);
@override
_CollectionAppBarState createState() => _CollectionAppBarState();
}
class _CollectionAppBarState extends State<CollectionAppBar> with SingleTickerProviderStateMixin {
final EntrySetActionDelegate _actionDelegate = EntrySetActionDelegate();
late AnimationController _browseToSelectAnimation;
late Future<bool> _canAddShortcutsLoader;
final ValueNotifier<bool> _isSelectingNotifier = ValueNotifier(false);
CollectionLens get collection => widget.collection;
CollectionSource get source => collection.source;
bool get hasFilters => collection.filters.isNotEmpty;
@override
void initState() {
super.initState();
_browseToSelectAnimation = AnimationController(
duration: context.read<DurationsData>().iconAnimation,
vsync: this,
);
_isSelectingNotifier.addListener(_onActivityChange);
_canAddShortcutsLoader = androidAppService.canPinToHomeScreen();
_registerWidget(widget);
WidgetsBinding.instance!.addPostFrameCallback((_) => _onFilterChanged());
}
@override
void didUpdateWidget(covariant CollectionAppBar oldWidget) {
super.didUpdateWidget(oldWidget);
_unregisterWidget(oldWidget);
_registerWidget(widget);
}
@override
void dispose() {
_unregisterWidget(widget);
_isSelectingNotifier.removeListener(_onActivityChange);
_browseToSelectAnimation.dispose();
super.dispose();
}
void _registerWidget(CollectionAppBar widget) {
widget.collection.filterChangeNotifier.addListener(_onFilterChanged);
}
void _unregisterWidget(CollectionAppBar widget) {
widget.collection.filterChangeNotifier.removeListener(_onFilterChanged);
}
@override
Widget build(BuildContext context) {
final appMode = context.watch<ValueNotifier<AppMode>>().value;
return Selector<Selection<AvesEntry>, bool>(
selector: (context, selection) => selection.isSelecting,
builder: (context, isSelecting, child) {
_isSelectingNotifier.value = isSelecting;
return AnimatedBuilder(
animation: collection.filterChangeNotifier,
builder: (context, child) {
final removableFilters = appMode != AppMode.pickInternal;
return SliverAppBar(
leading: appMode.hasDrawer ? _buildAppBarLeading(isSelecting) : null,
title: _buildAppBarTitle(isSelecting),
actions: _buildActions(isSelecting),
bottom: hasFilters
? FilterBar(
filters: collection.filters,
removable: removableFilters,
onTap: removableFilters ? collection.removeFilter : null,
)
: null,
titleSpacing: 0,
floating: true,
);
},
);
},
);
}
Widget _buildAppBarLeading(bool isSelecting) {
VoidCallback? onPressed;
String? tooltip;
if (isSelecting) {
onPressed = () => context.read<Selection<AvesEntry>>().browse();
tooltip = MaterialLocalizations.of(context).backButtonTooltip;
} else {
onPressed = Scaffold.of(context).openDrawer;
tooltip = MaterialLocalizations.of(context).openAppDrawerTooltip;
}
return IconButton(
// key is expected by test driver
key: const Key('appbar-leading-button'),
icon: AnimatedIcon(
icon: AnimatedIcons.menu_arrow,
progress: _browseToSelectAnimation,
),
onPressed: onPressed,
tooltip: tooltip,
);
}
Widget? _buildAppBarTitle(bool isSelecting) {
if (isSelecting) {
return Selector<Selection<AvesEntry>, int>(
selector: (context, selection) => selection.selectedItems.length,
builder: (context, count, child) => Text(context.l10n.collectionSelectionPageTitle(count)),
);
} else {
final appMode = context.watch<ValueNotifier<AppMode>>().value;
Widget title = Text(appMode.isPicking ? context.l10n.collectionPickPageTitle : context.l10n.collectionPageTitle);
if (appMode == AppMode.main) {
title = SourceStateAwareAppBarTitle(
title: title,
source: source,
);
}
return InteractiveAppBarTitle(
onTap: appMode.canSearch ? _goToSearch : null,
child: title,
);
}
}
List<Widget> _buildActions(bool isSelecting) {
final appMode = context.watch<ValueNotifier<AppMode>>().value;
final selectionQuickActions = settings.collectionSelectionQuickActions;
return [
if (!isSelecting && appMode.canSearch)
CollectionSearchButton(
source: source,
parentCollection: collection,
),
if (isSelecting)
...selectionQuickActions.map((action) => Selector<Selection<AvesEntry>, bool>(
selector: (context, selection) => selection.selectedItems.isEmpty,
builder: (context, isEmpty, child) => IconButton(
icon: action.getIcon(),
onPressed: isEmpty ? null : () => _onCollectionActionSelected(action),
tooltip: action.getText(context),
),
)),
FutureBuilder<bool>(
future: _canAddShortcutsLoader,
builder: (context, snapshot) {
final canAddShortcuts = snapshot.data ?? false;
return MenuIconTheme(
child: PopupMenuButton<EntrySetAction>(
// key is expected by test driver
key: const Key('appbar-menu-button'),
itemBuilder: (context) {
final groupable = collection.sortFactor == EntrySortFactor.date;
final selection = context.read<Selection<AvesEntry>>();
final isSelecting = selection.isSelecting;
final selectedItems = selection.selectedItems;
final hasSelection = selectedItems.isNotEmpty;
final hasItems = !collection.isEmpty;
final otherViewEnabled = (!isSelecting && hasItems) || (isSelecting && hasSelection);
return [
_toMenuItem(EntrySetAction.sort),
if (groupable) _toMenuItem(EntrySetAction.group),
if (appMode == AppMode.main) ...[
if (!isSelecting)
_toMenuItem(
EntrySetAction.select,
enabled: hasItems,
),
const PopupMenuDivider(),
if (isSelecting) ...EntrySetActions.selection.where((v) => !selectionQuickActions.contains(v)).map((v) => _toMenuItem(v, enabled: hasSelection)),
if (!isSelecting)
...[
EntrySetAction.map,
EntrySetAction.stats,
].map((v) => _toMenuItem(v, enabled: otherViewEnabled)),
if (!isSelecting && canAddShortcuts) ...[
const PopupMenuDivider(),
_toMenuItem(EntrySetAction.addShortcut),
],
],
if (isSelecting) ...[
const PopupMenuDivider(),
_toMenuItem(
EntrySetAction.selectAll,
enabled: selectedItems.length < collection.entryCount,
),
_toMenuItem(
EntrySetAction.selectNone,
enabled: hasSelection,
),
]
];
},
onSelected: (action) async {
// wait for the popup menu to hide before proceeding with the action
await Future.delayed(Durations.popupMenuAnimation * timeDilation);
await _onCollectionActionSelected(action);
},
),
);
},
),
];
}
PopupMenuItem<EntrySetAction> _toMenuItem(EntrySetAction action, {bool enabled = true}) {
return PopupMenuItem(
// key is expected by test driver (e.g. 'menu-sort', 'menu-group', 'menu-map')
key: Key('menu-${action.toString().substring('EntrySetAction.'.length)}'),
value: action,
enabled: enabled,
child: MenuRow(text: action.getText(context), icon: action.getIcon()),
);
}
void _onActivityChange() {
if (context.read<Selection<AvesEntry>>().isSelecting) {
_browseToSelectAnimation.forward();
} else {
_browseToSelectAnimation.reverse();
}
}
void _onFilterChanged() {
widget.appBarHeightNotifier.value = kToolbarHeight + (hasFilters ? FilterBar.preferredHeight : 0);
if (hasFilters) {
final filters = collection.filters;
final selection = context.read<Selection<AvesEntry>>();
if (selection.isSelecting) {
final toRemove = selection.selectedItems.where((entry) => !filters.every((f) => f.test(entry))).toSet();
selection.removeFromSelection(toRemove);
}
}
}
Future<void> _onCollectionActionSelected(EntrySetAction action) async {
switch (action) {
case EntrySetAction.share:
case EntrySetAction.delete:
case EntrySetAction.copy:
case EntrySetAction.move:
case EntrySetAction.rescan:
case EntrySetAction.map:
case EntrySetAction.stats:
_actionDelegate.onActionSelected(context, action);
break;
case EntrySetAction.select:
context.read<Selection<AvesEntry>>().select();
break;
case EntrySetAction.selectAll:
context.read<Selection<AvesEntry>>().addToSelection(collection.sortedEntries);
break;
case EntrySetAction.selectNone:
context.read<Selection<AvesEntry>>().clearSelection();
break;
case EntrySetAction.addShortcut:
unawaited(_showShortcutDialog(context));
break;
case EntrySetAction.group:
final value = await showDialog<EntryGroupFactor>(
context: context,
builder: (context) => AvesSelectionDialog<EntryGroupFactor>(
initialValue: settings.collectionSectionFactor,
options: {
EntryGroupFactor.album: context.l10n.collectionGroupAlbum,
EntryGroupFactor.month: context.l10n.collectionGroupMonth,
EntryGroupFactor.day: context.l10n.collectionGroupDay,
EntryGroupFactor.none: context.l10n.collectionGroupNone,
},
title: context.l10n.collectionGroupTitle,
),
);
// wait for the dialog to hide as applying the change may block the UI
await Future.delayed(Durations.dialogTransitionAnimation * timeDilation);
if (value != null) {
settings.collectionSectionFactor = value;
}
break;
case EntrySetAction.sort:
final value = await showDialog<EntrySortFactor>(
context: context,
builder: (context) => AvesSelectionDialog<EntrySortFactor>(
initialValue: settings.collectionSortFactor,
options: {
EntrySortFactor.date: context.l10n.collectionSortDate,
EntrySortFactor.size: context.l10n.collectionSortSize,
EntrySortFactor.name: context.l10n.collectionSortName,
},
title: context.l10n.collectionSortTitle,
),
);
// wait for the dialog to hide as applying the change may block the UI
await Future.delayed(Durations.dialogTransitionAnimation * timeDilation);
if (value != null) {
settings.collectionSortFactor = value;
}
break;
}
}
Future<void> _showShortcutDialog(BuildContext context) async {
final filters = collection.filters;
String? defaultName;
if (filters.isNotEmpty) {
// we compute the default name beforehand
// because some filter labels need localization
final sortedFilters = List<CollectionFilter>.from(filters)..sort();
defaultName = sortedFilters.first.getLabel(context).replaceAll('\n', ' ');
}
final result = await showDialog<Tuple2<AvesEntry?, String>>(
context: context,
builder: (context) => AddShortcutDialog(
collection: collection,
defaultName: defaultName ?? '',
),
);
if (result == null) return;
final coverEntry = result.item1;
final name = result.item2;
if (name.isEmpty) return;
unawaited(androidAppService.pinToHomeScreen(name, coverEntry, filters));
}
void _goToSearch() {
Navigator.push(
context,
SearchPageRoute(
delegate: CollectionSearchDelegate(
source: collection.source,
parentCollection: collection,
),
),
);
}
}