118 lines
3.6 KiB
Dart
118 lines
3.6 KiB
Dart
import 'package:aves/model/entry.dart';
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import 'package:aves/theme/icons.dart';
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import 'package:aves/widgets/collection/empty.dart';
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import 'package:aves/widgets/viewer/info/metadata/metadata_dir_tile.dart';
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import 'package:aves/widgets/viewer/info/metadata/metadata_section.dart';
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import 'package:collection/collection.dart';
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import 'package:flutter/material.dart';
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class InfoSearchDelegate extends SearchDelegate {
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final AvesEntry entry;
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final ValueNotifier<Map<String, MetadataDirectory>> metadataNotifier;
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Map<String, MetadataDirectory> get metadata => metadataNotifier.value;
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static const suggestions = {
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'Date & time': 'date or time or when -timer -uptime -exposure -timeline',
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'Description': 'abstract or description or comment',
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'Dimensions': 'width or height or dimension or framesize or imagelength',
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'Resolution': 'resolution',
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'Rights': 'rights or copyright or artist or creator or by-line or credit -tool',
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};
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InfoSearchDelegate({
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@required this.entry,
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@required this.metadataNotifier,
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}) : super(
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searchFieldLabel: 'Search metadata',
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);
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@override
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ThemeData appBarTheme(BuildContext context) {
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return Theme.of(context);
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}
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@override
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Widget buildLeading(BuildContext context) {
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return IconButton(
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icon: AnimatedIcon(
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icon: AnimatedIcons.menu_arrow,
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progress: transitionAnimation,
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),
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onPressed: () => Navigator.pop(context),
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tooltip: MaterialLocalizations.of(context).backButtonTooltip,
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);
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}
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@override
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List<Widget> buildActions(BuildContext context) {
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return [
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if (query.isNotEmpty)
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IconButton(
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icon: Icon(AIcons.clear),
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onPressed: () {
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query = '';
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showSuggestions(context);
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},
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tooltip: 'Clear',
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),
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];
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}
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@override
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Widget buildSuggestions(BuildContext context) => ListView(
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children: suggestions.entries
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.map((kv) => ListTile(
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title: Text(kv.key),
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onTap: () {
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query = kv.value;
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showResults(context);
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},
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))
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.toList(),
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);
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@override
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Widget buildResults(BuildContext context) {
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if (query.isEmpty) {
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showSuggestions(context);
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return SizedBox();
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}
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final queryParts = query.toUpperCase().split(' ')..removeWhere((s) => s.isEmpty);
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final queryExcludeIncludeGroups = groupBy<String, bool>(queryParts, (s) => s.startsWith('-'));
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final queryExcludeAll = (queryExcludeIncludeGroups[true] ?? []).map((s) => s.substring(1));
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final queryIncludeAny = (queryExcludeIncludeGroups[false] ?? []).join(' ').split(' OR ');
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bool testKey(String key) {
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key = key.toUpperCase();
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return queryIncludeAny.any(key.contains) && queryExcludeAll.every((q) => !key.contains(q));
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}
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final filteredMetadata = Map.fromEntries(metadata.entries.map((kv) {
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final filteredDir = kv.value.filterKeys(testKey);
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return MapEntry(kv.key, filteredDir);
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}));
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final tiles = filteredMetadata.entries
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.where((kv) => kv.value.tags.isNotEmpty)
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.map((kv) => MetadataDirTile(
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entry: entry,
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title: kv.key,
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dir: kv.value,
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initiallyExpanded: true,
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showPrefixChildren: false,
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))
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.toList();
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return tiles.isEmpty
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? EmptyContent(
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icon: AIcons.info,
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text: 'No matching keys',
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)
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: ListView.builder(
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padding: EdgeInsets.all(8),
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itemBuilder: (context, index) => tiles[index],
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itemCount: tiles.length,
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);
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}
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}
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