aves/lib/widgets/collection/app_bar.dart
2021-06-25 21:38:56 +09:00

398 lines
14 KiB
Dart

import 'dart:async';
import 'package:aves/app_mode.dart';
import 'package:aves/model/actions/collection_actions.dart';
import 'package:aves/model/actions/entry_actions.dart';
import 'package:aves/model/entry.dart';
import 'package:aves/model/filters/filters.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/app_shortcut_service.dart';
import 'package:aves/theme/durations.dart';
import 'package:aves/theme/icons.dart';
import 'package:aves/utils/pedantic.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_row.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:aves/widgets/stats/stats.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 TextEditingController _searchFieldController = TextEditingController();
final EntrySetActionDelegate _actionDelegate = EntrySetActionDelegate();
late AnimationController _browseToSelectAnimation;
late Future<bool> _canAddShortcutsLoader;
CollectionLens get collection => widget.collection;
CollectionSource get source => collection.source;
bool get hasFilters => collection.filters.isNotEmpty;
@override
void initState() {
super.initState();
_browseToSelectAnimation = AnimationController(
duration: Durations.iconAnimation,
vsync: this,
);
_canAddShortcutsLoader = AppShortcutService.canPin();
_registerWidget(widget);
WidgetsBinding.instance!.addPostFrameCallback((_) => _updateHeight());
}
@override
void didUpdateWidget(covariant CollectionAppBar oldWidget) {
super.didUpdateWidget(oldWidget);
_unregisterWidget(oldWidget);
_registerWidget(widget);
}
@override
void dispose() {
_unregisterWidget(widget);
_browseToSelectAnimation.dispose();
_searchFieldController.dispose();
super.dispose();
}
void _registerWidget(CollectionAppBar widget) {
widget.collection.activityNotifier.addListener(_onActivityChange);
widget.collection.filterChangeNotifier.addListener(_updateHeight);
}
void _unregisterWidget(CollectionAppBar widget) {
widget.collection.activityNotifier.removeListener(_onActivityChange);
widget.collection.filterChangeNotifier.removeListener(_updateHeight);
}
@override
Widget build(BuildContext context) {
final appMode = context.watch<ValueNotifier<AppMode>>().value;
return ValueListenableBuilder<Activity>(
valueListenable: collection.activityNotifier,
builder: (context, activity, child) {
return AnimatedBuilder(
animation: collection.filterChangeNotifier,
builder: (context, child) {
final removableFilters = appMode != AppMode.pickInternal;
return SliverAppBar(
leading: appMode.hasDrawer ? _buildAppBarLeading() : null,
title: _buildAppBarTitle(),
actions: _buildActions(),
bottom: hasFilters
? FilterBar(
filters: collection.filters,
removable: removableFilters,
onTap: removableFilters ? collection.removeFilter : null,
)
: null,
titleSpacing: 0,
floating: true,
);
},
);
},
);
}
Widget _buildAppBarLeading() {
VoidCallback? onPressed;
String? tooltip;
if (collection.isBrowsing) {
onPressed = Scaffold.of(context).openDrawer;
tooltip = MaterialLocalizations.of(context).openAppDrawerTooltip;
} else if (collection.isSelecting) {
onPressed = collection.browse;
tooltip = MaterialLocalizations.of(context).backButtonTooltip;
}
return IconButton(
key: const Key('appbar-leading-button'),
icon: AnimatedIcon(
icon: AnimatedIcons.menu_arrow,
progress: _browseToSelectAnimation,
),
onPressed: onPressed,
tooltip: tooltip,
);
}
Widget? _buildAppBarTitle() {
if (collection.isBrowsing) {
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,
);
} else if (collection.isSelecting) {
return AnimatedBuilder(
animation: collection.selectionChangeNotifier,
builder: (context, child) {
final count = collection.selection.length;
return Text(context.l10n.collectionSelectionPageTitle(count));
},
);
}
return null;
}
List<Widget> _buildActions() {
final appMode = context.watch<ValueNotifier<AppMode>>().value;
return [
if (collection.isBrowsing && appMode.canSearch)
CollectionSearchButton(
source: source,
parentCollection: collection,
),
if (collection.isSelecting)
...EntryActions.selection.map((action) => AnimatedBuilder(
animation: collection.selectionChangeNotifier,
builder: (context, child) {
return IconButton(
icon: Icon(action.getIcon()),
onPressed: collection.selection.isEmpty ? null : () => _actionDelegate.onEntryActionSelected(context, action),
tooltip: action.getText(context),
);
},
)),
FutureBuilder<bool>(
future: _canAddShortcutsLoader,
builder: (context, snapshot) {
final canAddShortcuts = snapshot.data ?? false;
return PopupMenuButton<CollectionAction>(
key: const Key('appbar-menu-button'),
itemBuilder: (context) {
final isNotEmpty = !collection.isEmpty;
final hasSelection = collection.selection.isNotEmpty;
return [
PopupMenuItem(
key: const Key('menu-sort'),
value: CollectionAction.sort,
child: MenuRow(text: context.l10n.menuActionSort, icon: AIcons.sort),
),
if (collection.sortFactor == EntrySortFactor.date)
PopupMenuItem(
key: const Key('menu-group'),
value: CollectionAction.group,
child: MenuRow(text: context.l10n.menuActionGroup, icon: AIcons.group),
),
if (collection.isBrowsing && appMode == AppMode.main) ...[
PopupMenuItem(
value: CollectionAction.select,
enabled: isNotEmpty,
child: MenuRow(text: context.l10n.collectionActionSelect, icon: AIcons.select),
),
PopupMenuItem(
value: CollectionAction.stats,
enabled: isNotEmpty,
child: MenuRow(text: context.l10n.menuActionStats, icon: AIcons.stats),
),
if (canAddShortcuts)
PopupMenuItem(
value: CollectionAction.addShortcut,
child: MenuRow(text: context.l10n.collectionActionAddShortcut, icon: AIcons.addShortcut),
),
],
if (collection.isSelecting) ...[
const PopupMenuDivider(),
PopupMenuItem(
value: CollectionAction.copy,
enabled: hasSelection,
child: MenuRow(text: context.l10n.collectionActionCopy),
),
PopupMenuItem(
value: CollectionAction.move,
enabled: hasSelection,
child: MenuRow(text: context.l10n.collectionActionMove),
),
PopupMenuItem(
value: CollectionAction.refreshMetadata,
enabled: hasSelection,
child: MenuRow(text: context.l10n.collectionActionRefreshMetadata),
),
const PopupMenuDivider(),
PopupMenuItem(
value: CollectionAction.selectAll,
enabled: collection.selection.length < collection.entryCount,
child: MenuRow(text: context.l10n.collectionActionSelectAll),
),
PopupMenuItem(
value: CollectionAction.selectNone,
enabled: hasSelection,
child: MenuRow(text: context.l10n.collectionActionSelectNone),
),
]
];
},
onSelected: (action) {
// wait for the popup menu to hide before proceeding with the action
Future.delayed(Durations.popupMenuAnimation * timeDilation, () => _onCollectionActionSelected(action));
},
);
},
),
];
}
void _onActivityChange() {
if (collection.isSelecting) {
_browseToSelectAnimation.forward();
} else {
_browseToSelectAnimation.reverse();
_searchFieldController.clear();
}
}
void _updateHeight() {
widget.appBarHeightNotifier.value = kToolbarHeight + (hasFilters ? FilterBar.preferredHeight : 0);
}
Future<void> _onCollectionActionSelected(CollectionAction action) async {
switch (action) {
case CollectionAction.copy:
case CollectionAction.move:
case CollectionAction.refreshMetadata:
_actionDelegate.onCollectionActionSelected(context, action);
break;
case CollectionAction.select:
collection.select();
break;
case CollectionAction.selectAll:
collection.addToSelection(collection.sortedEntries);
break;
case CollectionAction.selectNone:
collection.clearSelection();
break;
case CollectionAction.stats:
_goToStats();
break;
case CollectionAction.addShortcut:
unawaited(_showShortcutDialog(context));
break;
case CollectionAction.group:
final value = await showDialog<EntryGroupFactor>(
context: context,
builder: (context) => AvesSelectionDialog<EntryGroupFactor>(
initialValue: settings.collectionGroupFactor,
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.collectionGroupFactor = value;
collection.group(value);
}
break;
case CollectionAction.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;
collection.sort(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);
}
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(AppShortcutService.pin(name, coverEntry, filters));
}
void _goToSearch() {
Navigator.push(
context,
SearchPageRoute(
delegate: CollectionSearchDelegate(
source: collection.source,
parentCollection: collection,
),
));
}
void _goToStats() {
Navigator.push(
context,
MaterialPageRoute(
settings: const RouteSettings(name: StatsPage.routeName),
builder: (context) => StatsPage(
source: source,
parentCollection: collection,
),
),
);
}
}