Files
App/lib/screens/posts/post_search.dart
2025-12-06 18:20:47 +08:00

289 lines
12 KiB
Dart

import 'dart:async';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:island/widgets/app_scaffold.dart';
import 'package:island/widgets/extended_refresh_indicator.dart';
import 'package:island/widgets/post/post_item.dart';
import 'package:island/widgets/posts/post_filter.dart';
import 'package:gap/gap.dart';
import 'package:island/pods/post/post_list.dart';
import 'package:island/services/responsive.dart';
import 'package:island/widgets/paging/pagination_list.dart';
import 'package:material_symbols_icons/symbols.dart';
import 'package:styled_widget/styled_widget.dart';
const kSearchPostListId = 'search';
class PostSearchScreen extends HookConsumerWidget {
const PostSearchScreen({super.key});
@override
Widget build(BuildContext context, WidgetRef ref) {
final searchController = useTextEditingController();
final debounce = useMemoized(() => Duration(milliseconds: 500));
final debounceTimer = useRef<Timer?>(null);
final showFilters = useState(false);
final pubNameController = useTextEditingController();
final realmController = useTextEditingController();
// State variables for PostFilterWidget
final categoryTabController = useTabController(initialLength: 3);
// Single query state
final queryState = useState(const PostListQuery());
final noti = ref.read(postListProvider(kSearchPostListId).notifier);
useEffect(() {
return () {
searchController.dispose();
pubNameController.dispose();
realmController.dispose();
debounceTimer.value?.cancel();
};
}, []);
void onSearchChanged(String query, {bool skipDebounce = false}) {
queryState.value = queryState.value.copyWith(queryTerm: query);
if (skipDebounce) {
noti.applyFilter(queryState.value);
return;
}
if (debounceTimer.value?.isActive ?? false) debounceTimer.value!.cancel();
debounceTimer.value = Timer(debounce, () {
noti.applyFilter(queryState.value);
});
}
void toggleFilterDisplay() {
showFilters.value = !showFilters.value;
}
Widget buildFilterPanel() {
return PostFilterWidget(
categoryTabController: categoryTabController,
initialQuery: queryState.value,
onQueryChanged: (newQuery) {
queryState.value = newQuery;
noti.applyFilter(newQuery);
},
hideSearch: true,
);
}
return AppScaffold(
isNoBackground: false,
appBar: isWideScreen(context)
? null
: AppBar(
title: Row(
children: [
Expanded(
child: TextField(
controller: searchController,
decoration: InputDecoration(
hintText: 'search'.tr(),
border: InputBorder.none,
hintStyle: TextStyle(
color: Theme.of(context).appBarTheme.foregroundColor,
),
),
style: TextStyle(
color: Theme.of(context).appBarTheme.foregroundColor,
),
onChanged: onSearchChanged,
onSubmitted: (value) {
onSearchChanged(value, skipDebounce: true);
},
autofocus: true,
),
),
IconButton(
icon: Icon(
showFilters.value
? Icons.filter_alt
: Icons.filter_alt_outlined,
),
onPressed: toggleFilterDisplay,
tooltip: 'toggleFilters'.tr(),
),
],
),
),
body: Consumer(
builder: (context, ref, child) {
final searchState = ref.watch(postListProvider(kSearchPostListId));
return isWideScreen(context)
? Row(
children: [
Flexible(
flex: 4,
child: ExtendedRefreshIndicator(
onRefresh: noti.refresh,
child: CustomScrollView(
slivers: [
SliverGap(16),
SliverToBoxAdapter(
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 8,
),
child: SearchBar(
elevation: WidgetStateProperty.all(4),
controller: searchController,
hintText: 'search'.tr(),
leading: const Icon(Icons.search),
padding: WidgetStateProperty.all(
const EdgeInsets.symmetric(horizontal: 24),
),
onChanged: onSearchChanged,
onSubmitted: (value) {
onSearchChanged(value, skipDebounce: true);
},
),
),
),
const SliverGap(16),
if (showFilters.value && !isWideScreen(context))
SliverToBoxAdapter(child: buildFilterPanel()),
// Use PaginationList with isSliver=true
PaginationList(
provider: postListProvider(kSearchPostListId),
notifier: postListProvider(
kSearchPostListId,
).notifier,
isSliver: true,
isRefreshable: false,
itemBuilder: (context, index, post) {
return Card(
margin: EdgeInsets.symmetric(
horizontal: 8,
vertical: 4,
),
child: PostActionableItem(
item: post,
borderRadius: 8,
),
);
},
),
if (searchState.value?.isEmpty == true &&
searchController.text.isNotEmpty &&
!searchState.isLoading)
SliverFillRemaining(
child: Center(
child: Text('noResultsFound'.tr()),
),
),
SliverGap(
MediaQuery.of(context).padding.bottom + 16,
),
],
).padding(left: 8),
),
),
Flexible(
flex: 3,
child: Align(
alignment: Alignment.topLeft,
child: SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Gap(16),
Card(
margin: EdgeInsets.symmetric(horizontal: 8),
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 12,
vertical: 8,
),
child: Row(
children: [
const Icon(
Symbols.tune,
).padding(horizontal: 8),
Expanded(
child: Text(
'filters'.tr(),
style: Theme.of(
context,
).textTheme.bodyLarge,
),
),
IconButton(
icon: Icon(
Symbols.filter_alt,
fill: showFilters.value ? 1 : null,
),
onPressed: toggleFilterDisplay,
tooltip: 'toggleFilters'.tr(),
),
const Gap(4),
],
),
),
),
const Gap(8),
if (showFilters.value) buildFilterPanel(),
],
),
),
),
),
],
)
: CustomScrollView(
slivers: [
if (showFilters.value)
SliverToBoxAdapter(
child: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 600),
child: buildFilterPanel(),
),
),
),
// Use PaginationList with isSliver=true
PaginationList(
provider: postListProvider(kSearchPostListId),
notifier: postListProvider(kSearchPostListId).notifier,
isSliver: true,
isRefreshable: false,
itemBuilder: (context, index, post) {
return Center(
child: ConstrainedBox(
constraints: BoxConstraints(maxWidth: 600),
child: Card(
margin: EdgeInsets.symmetric(
horizontal: 8,
vertical: 4,
),
child: PostActionableItem(
item: post,
borderRadius: 8,
),
),
),
);
},
),
if (searchState.value?.isEmpty == true &&
searchController.text.isNotEmpty &&
!searchState.isLoading)
SliverFillRemaining(
child: Center(child: Text('noResultsFound'.tr())),
),
],
);
},
),
);
}
}