45942f7931
## Description See commits.
294 lines
9.5 KiB
Dart
294 lines
9.5 KiB
Dart
import "dart:async";
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import "package:flutter/material.dart";
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import "package:flutter/scheduler.dart";
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import "package:photos/core/event_bus.dart";
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import "package:photos/events/clear_and_unfocus_search_bar_event.dart";
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import "package:photos/events/tab_changed_event.dart";
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import "package:photos/generated/l10n.dart";
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import "package:photos/models/search/index_of_indexed_stack.dart";
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import "package:photos/models/search/search_result.dart";
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import "package:photos/services/search_service.dart";
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import "package:photos/theme/ente_theme.dart";
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import "package:photos/ui/viewer/search/search_suffix_icon_widget.dart";
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import "package:photos/utils/date_time_util.dart";
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import "package:photos/utils/debouncer.dart";
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class SearchWidget extends StatefulWidget {
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const SearchWidget({Key? key}) : super(key: key);
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@override
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State<SearchWidget> createState() => SearchWidgetState();
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}
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class SearchWidgetState extends State<SearchWidget> {
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static final ValueNotifier<Stream<List<SearchResult>>?>
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searchResultsStreamNotifier = ValueNotifier(null);
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///This stores the query that is being searched for. When going to other tabs
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///when searching, this state gets disposed and when coming back to the
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///search tab, this query is used to populate the search bar.
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static String query = "";
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//Debouncing + querying
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static final isLoading = ValueNotifier(false);
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final _searchService = SearchService.instance;
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final _debouncer = Debouncer(const Duration(milliseconds: 200));
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late FocusNode focusNode;
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StreamSubscription<TabDoubleTapEvent>? _tabDoubleTapEvent;
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double _bottomPadding = 0.0;
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double _distanceOfWidgetFromBottom = 0;
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GlobalKey widgetKey = GlobalKey();
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TextEditingController textController = TextEditingController();
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late final StreamSubscription<ClearAndUnfocusSearchBar>
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_clearAndUnfocusSearchBar;
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@override
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void initState() {
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super.initState();
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focusNode = FocusNode();
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_tabDoubleTapEvent =
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Bus.instance.on<TabDoubleTapEvent>().listen((event) async {
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debugPrint("Firing now ${event.selectedIndex}");
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if (mounted && event.selectedIndex == 3) {
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focusNode.requestFocus();
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}
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});
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SchedulerBinding.instance.addPostFrameCallback((_) {
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//This buffer is for doing this operation only after SearchWidget's
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//animation is complete.
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Future.delayed(const Duration(milliseconds: 300), () {
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final RenderBox box =
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widgetKey.currentContext!.findRenderObject() as RenderBox;
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final heightOfWidget = box.size.height;
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final offsetPosition = box.localToGlobal(Offset.zero);
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final y = offsetPosition.dy;
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final heightOfScreen = MediaQuery.sizeOf(context).height;
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_distanceOfWidgetFromBottom = heightOfScreen - (y + heightOfWidget);
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});
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textController.addListener(textControllerListener);
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});
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//Populate the serach tab with the latest query when coming back
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//to the serach tab.
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textController.text = query;
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_clearAndUnfocusSearchBar =
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Bus.instance.on<ClearAndUnfocusSearchBar>().listen((event) {
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textController.clear();
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focusNode.unfocus();
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});
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}
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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_bottomPadding =
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(MediaQuery.viewInsetsOf(context).bottom - _distanceOfWidgetFromBottom);
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if (_bottomPadding < 0) {
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_bottomPadding = 0;
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}
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}
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@override
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void dispose() {
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_debouncer.cancelDebounce();
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focusNode.dispose();
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_tabDoubleTapEvent?.cancel();
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textController.removeListener(textControllerListener);
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textController.dispose();
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_clearAndUnfocusSearchBar.cancel();
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super.dispose();
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}
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Future<void> textControllerListener() async {
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isLoading.value = true;
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_debouncer.run(() async {
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if (mounted) {
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query = textController.text;
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IndexOfStackNotifier().isSearchQueryEmpty = query.isEmpty;
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searchResultsStreamNotifier.value =
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_getSearchResultsStream(context, query);
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}
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});
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}
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@override
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Widget build(BuildContext context) {
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final colorScheme = getEnteColorScheme(context);
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return RepaintBoundary(
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key: widgetKey,
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child: Padding(
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padding: EdgeInsets.only(bottom: _bottomPadding),
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child: Padding(
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padding: const EdgeInsets.symmetric(vertical: 12),
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child: Padding(
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padding: const EdgeInsets.symmetric(vertical: 2, horizontal: 8),
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child: ClipRRect(
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borderRadius: BorderRadius.circular(8),
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child: Container(
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color: colorScheme.backgroundBase,
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child: Container(
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color: colorScheme.fillFaint,
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child: TextField(
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controller: textController,
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focusNode: focusNode,
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style: Theme.of(context).textTheme.titleMedium,
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// Below parameters are to disable auto-suggestion
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// Above parameters are to disable auto-suggestion
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decoration: InputDecoration(
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hintText: S.of(context).search,
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filled: true,
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fillColor: getEnteColorScheme(context).fillFaint,
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border: const UnderlineInputBorder(
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borderSide: BorderSide.none,
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),
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focusedBorder: const UnderlineInputBorder(
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borderSide: BorderSide.none,
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),
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prefixIconConstraints: const BoxConstraints(
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maxHeight: 44,
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maxWidth: 44,
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minHeight: 44,
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minWidth: 44,
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),
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suffixIconConstraints: const BoxConstraints(
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maxHeight: 44,
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maxWidth: 44,
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minHeight: 44,
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minWidth: 44,
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),
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contentPadding: const EdgeInsets.symmetric(
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vertical: 8,
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),
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prefixIcon: Hero(
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tag: "search_icon",
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child: Icon(
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Icons.search,
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color: colorScheme.strokeFaint,
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),
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),
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/*Using valueListenableBuilder inside a stateful widget because this widget is only rebuild when
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setState is called when deboucncing is over and the spinner needs to be shown while debouncing */
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suffixIcon: ValueListenableBuilder(
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valueListenable: isLoading,
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builder: (
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BuildContext context,
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bool isSearching,
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Widget? child,
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) {
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return SearchSuffixIcon(
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isSearching,
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);
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},
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),
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),
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),
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),
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),
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),
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),
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),
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),
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);
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}
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Stream<List<SearchResult>> _getSearchResultsStream(
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BuildContext context,
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String query,
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) {
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int resultCount = 0;
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final maxResultCount = _isYearValid(query) ? 11 : 10;
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final streamController = StreamController<List<SearchResult>>();
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if (query.isEmpty) {
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streamController.sink.add([]);
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streamController.close();
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return streamController.stream;
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}
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void onResultsReceived(List<SearchResult> results) {
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streamController.sink.add(results);
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resultCount++;
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if (resultCount == maxResultCount) {
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streamController.close();
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}
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}
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if (_isYearValid(query)) {
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_searchService.getYearSearchResults(query).then((yearSearchResults) {
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onResultsReceived(yearSearchResults);
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});
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}
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_searchService.getHolidaySearchResults(context, query).then(
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(holidayResults) {
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onResultsReceived(holidayResults);
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},
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);
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_searchService.getFileTypeResults(context, query).then(
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(fileTypeSearchResults) {
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onResultsReceived(fileTypeSearchResults);
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},
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);
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_searchService.getCaptionAndNameResults(query).then(
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(captionAndDisplayNameResult) {
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onResultsReceived(captionAndDisplayNameResult);
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},
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);
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_searchService.getFileExtensionResults(query).then(
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(fileExtnResult) {
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onResultsReceived(fileExtnResult);
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},
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);
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_searchService.getLocationResults(query).then(
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(locationResult) {
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onResultsReceived(locationResult);
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},
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);
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_searchService.getCollectionSearchResults(query).then(
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(collectionResults) {
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onResultsReceived(collectionResults);
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},
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);
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_searchService.getMonthSearchResults(context, query).then(
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(monthResults) {
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onResultsReceived(monthResults);
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},
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);
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_searchService.getDateResults(context, query).then(
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(possibleEvents) {
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onResultsReceived(possibleEvents);
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},
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);
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_searchService.getMagicSearchResults(context, query).then(
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(magicResults) {
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onResultsReceived(magicResults);
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},
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);
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_searchService.getContactSearchResults(query).then(
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(contactResults) {
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onResultsReceived(contactResults);
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},
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);
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return streamController.stream;
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}
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bool _isYearValid(String year) {
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final yearAsInt = int.tryParse(year); //returns null if cannot be parsed
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return yearAsInt != null && yearAsInt <= currentYear;
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}
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}
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