114 lines
3.2 KiB
Dart
114 lines
3.2 KiB
Dart
import "dart:async";
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import "package:flutter/foundation.dart";
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import "package:flutter/material.dart";
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import "package:photos/core/configuration.dart";
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import "package:photos/core/event_bus.dart";
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import "package:photos/events/clear_selections_event.dart";
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import 'package:photos/models/file/file.dart';
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import "package:photos/models/selected_files.dart";
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import "package:photos/ui/viewer/gallery/component/grid/non_recyclable_grid_view_widget.dart";
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import "package:photos/ui/viewer/gallery/component/grid/recyclable_grid_view_widget.dart";
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import "package:photos/ui/viewer/gallery/gallery.dart";
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class LazyGridView extends StatefulWidget {
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final String tag;
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final List<EnteFile> filesInGroup;
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final GalleryLoader asyncLoader;
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final SelectedFiles? selectedFiles;
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final bool shouldRender;
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final bool shouldRecycle;
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final int? photoGridSize;
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final bool limitSelectionToOne;
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const LazyGridView(
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this.tag,
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this.filesInGroup,
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this.asyncLoader,
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this.selectedFiles,
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this.shouldRender,
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this.shouldRecycle,
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this.photoGridSize, {
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this.limitSelectionToOne = false,
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Key? key,
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}) : super(key: key);
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@override
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State<LazyGridView> createState() => _LazyGridViewState();
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}
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class _LazyGridViewState extends State<LazyGridView> {
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late bool _shouldRender;
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int? _currentUserID;
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late StreamSubscription<ClearSelectionsEvent> _clearSelectionsEvent;
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@override
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void initState() {
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_shouldRender = widget.shouldRender;
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_currentUserID = Configuration.instance.getUserID();
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widget.selectedFiles?.addListener(_selectedFilesListener);
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_clearSelectionsEvent =
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Bus.instance.on<ClearSelectionsEvent>().listen((event) {
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if (mounted) {
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setState(() {});
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}
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});
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super.initState();
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}
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@override
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void dispose() {
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widget.selectedFiles?.removeListener(_selectedFilesListener);
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_clearSelectionsEvent.cancel();
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super.dispose();
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}
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@override
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void didUpdateWidget(LazyGridView oldWidget) {
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super.didUpdateWidget(oldWidget);
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if (!listEquals(widget.filesInGroup, oldWidget.filesInGroup)) {
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_shouldRender = widget.shouldRender;
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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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if (widget.shouldRecycle) {
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return RecyclableGridViewWidget(
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shouldRender: _shouldRender,
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filesInGroup: widget.filesInGroup,
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photoGridSize: widget.photoGridSize!,
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limitSelectionToOne: widget.limitSelectionToOne,
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tag: widget.tag,
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asyncLoader: widget.asyncLoader,
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selectedFiles: widget.selectedFiles,
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currentUserID: _currentUserID,
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);
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} else {
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return NonRecyclableGridViewWidget(
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shouldRender: _shouldRender,
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filesInGroup: widget.filesInGroup,
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photoGridSize: widget.photoGridSize!,
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limitSelectionToOne: widget.limitSelectionToOne,
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tag: widget.tag,
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asyncLoader: widget.asyncLoader,
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selectedFiles: widget.selectedFiles,
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currentUserID: _currentUserID,
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);
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}
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}
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void _selectedFilesListener() {
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bool shouldRefresh = false;
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for (final file in widget.filesInGroup) {
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if (widget.selectedFiles!.isPartOfLastSelected(file)) {
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shouldRefresh = true;
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}
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}
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if (shouldRefresh && mounted) {
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setState(() {});
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}
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}
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}
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