aves/lib/widgets/album/search/search_delegate.dart
2020-03-30 18:05:03 +09:00

109 lines
3.7 KiB
Dart

import 'package:aves/model/collection_lens.dart';
import 'package:aves/model/collection_source.dart';
import 'package:aves/model/filters/album.dart';
import 'package:aves/model/filters/favourite.dart';
import 'package:aves/model/filters/filters.dart';
import 'package:aves/model/filters/gif.dart';
import 'package:aves/model/filters/location.dart';
import 'package:aves/model/filters/query.dart';
import 'package:aves/model/filters/tag.dart';
import 'package:aves/model/filters/video.dart';
import 'package:aves/widgets/album/search/expandable_filter_row.dart';
import 'package:flutter/material.dart';
import 'package:outline_material_icons/outline_material_icons.dart';
class ImageSearchDelegate extends SearchDelegate<CollectionFilter> {
final CollectionLens collection;
final ValueNotifier<String> expandedSectionNotifier = ValueNotifier(null);
ImageSearchDelegate(this.collection);
@override
ThemeData appBarTheme(BuildContext context) {
return Theme.of(context);
}
@override
Widget buildLeading(BuildContext context) {
return IconButton(
tooltip: 'Back',
icon: AnimatedIcon(
icon: AnimatedIcons.menu_arrow,
progress: transitionAnimation,
),
onPressed: () => close(context, null),
);
}
@override
List<Widget> buildActions(BuildContext context) {
return [
if (query.isNotEmpty)
IconButton(
tooltip: 'Clear',
icon: Icon(OMIcons.clear),
onPressed: () {
query = '';
showSuggestions(context);
},
),
];
}
@override
Widget buildSuggestions(BuildContext context) {
final source = collection.source;
final upQuery = query.trim().toUpperCase();
final containQuery = (String s) => s.toUpperCase().contains(upQuery);
return SafeArea(
child: ValueListenableBuilder<String>(
valueListenable: expandedSectionNotifier,
builder: (context, expandedSection, child) {
return ListView(
children: [
_buildFilterRow(
context: context,
filters: [FavouriteFilter(), VideoFilter(), GifFilter()].where((f) => containQuery(f.label)),
),
_buildFilterRow(
context: context,
title: 'Albums',
filters: source.sortedAlbums.where(containQuery).map((s) => AlbumFilter(s, CollectionSource.getUniqueAlbumName(s, source.sortedAlbums))).where((f) => containQuery(f.uniqueName)),
),
_buildFilterRow(
context: context,
title: 'Cities',
filters: source.sortedCities.where(containQuery).map((s) => LocationFilter(LocationLevel.city, s)),
),
_buildFilterRow(
context: context,
title: 'Countries',
filters: source.sortedCountries.where(containQuery).map((s) => LocationFilter(LocationLevel.country, s)),
),
_buildFilterRow(
context: context,
title: 'Tags',
filters: source.sortedTags.where(containQuery).map((s) => TagFilter(s)),
),
],
);
}),
);
}
Widget _buildFilterRow({@required BuildContext context, String title, @required Iterable<CollectionFilter> filters}) {
return ExpandableFilterRow(
title: title,
filters: filters,
expandedNotifier: expandedSectionNotifier,
onPressed: (filter) => close(context, filter),
);
}
@override
Widget buildResults(BuildContext context) {
final cleanQuery = query.trim();
close(context, cleanQuery.isNotEmpty ? QueryFilter(cleanQuery) : null);
return const SizedBox.shrink();
}
}