mirror of
https://github.com/immich-app/immich
synced 2025-11-07 17:27:20 +00:00
feat(mobile): sqlite asset viewer (#19552)
* add full image provider and refactor thumb providers * photo_view updates * wip: asset-viewer * fix controller dispose on page change * wip: bottom sheet * fix interactions * more bottomsheet changes * generate schema * PR feedback * refactor asset viewer * never rotate and fix background on page change * use photoview as the loading builder * precache after delay * claude: optimizing rebuild of image provider * claude: optimizing image decoding and caching * use proper cache for new full size image providers * chore: load local HEIC fullsize for iOS * make controller callbacks nullable * remove imageprovider cache * do not handle drag gestures when zoomed * use loadOriginal setting for HEIC / larger images * preload assets outside timer * never use same controllers in photo-view gallery * fix: cannot scroll down once swipe with bottom sheet --------- Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com> Co-authored-by: Alex <alex.tran1502@gmail.com>
This commit is contained in:
shenlong
GitHub
parent
ec603a008c
commit
7855974a29
47 changed files with 1867 additions and 490 deletions
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import 'dart:async';
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import 'package:auto_route/auto_route.dart';
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import 'package:flutter/material.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:immich_mobile/domain/services/timeline.service.dart';
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import 'package:immich_mobile/extensions/build_context_extensions.dart';
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import 'package:immich_mobile/extensions/scroll_extensions.dart';
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import 'package:immich_mobile/presentation/widgets/asset_viewer/bottom_sheet.dart';
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import 'package:immich_mobile/presentation/widgets/images/image_provider.dart';
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import 'package:immich_mobile/presentation/widgets/images/thumbnail.widget.dart';
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import 'package:immich_mobile/providers/infrastructure/asset_viewer/current_asset.provider.dart';
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import 'package:immich_mobile/providers/infrastructure/timeline.provider.dart';
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import 'package:immich_mobile/widgets/photo_view/photo_view.dart';
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import 'package:immich_mobile/widgets/photo_view/photo_view_gallery.dart';
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import 'package:platform/platform.dart';
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@RoutePage()
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class AssetViewerPage extends StatelessWidget {
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final int initialIndex;
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final TimelineService timelineService;
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const AssetViewerPage({
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super.key,
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required this.initialIndex,
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required this.timelineService,
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});
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@override
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Widget build(BuildContext context) {
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// This is necessary to ensure that the timeline service is available
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// since the Timeline and AssetViewer are on different routes / Widget subtrees.
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return ProviderScope(
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overrides: [timelineServiceProvider.overrideWithValue(timelineService)],
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child: AssetViewer(initialIndex: initialIndex),
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);
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}
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}
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class AssetViewer extends ConsumerStatefulWidget {
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final int initialIndex;
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final Platform? platform;
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const AssetViewer({
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super.key,
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required this.initialIndex,
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this.platform,
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});
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@override
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ConsumerState createState() => _AssetViewerState();
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}
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const double _kBottomSheetMinimumExtent = 0.4;
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const double _kBottomSheetSnapExtent = 0.7;
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class _AssetViewerState extends ConsumerState<AssetViewer> {
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late PageController pageController;
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late DraggableScrollableController bottomSheetController;
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PersistentBottomSheetController? sheetCloseNotifier;
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// PhotoViewGallery takes care of disposing it's controllers
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PhotoViewControllerBase? viewController;
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late Platform platform;
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late PhotoViewControllerValue initialPhotoViewState;
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bool? hasDraggedDown;
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bool isSnapping = false;
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bool blockGestures = false;
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bool dragInProgress = false;
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bool shouldPopOnDrag = false;
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bool showingBottomSheet = false;
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double? initialScale;
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double previousExtent = _kBottomSheetMinimumExtent;
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Offset dragDownPosition = Offset.zero;
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int totalAssets = 0;
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int backgroundOpacity = 255;
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// Delayed operations that should be cancelled on disposal
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final List<Timer> _delayedOperations = [];
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@override
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void initState() {
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super.initState();
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pageController = PageController(initialPage: widget.initialIndex);
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platform = widget.platform ?? const LocalPlatform();
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totalAssets = ref.read(timelineServiceProvider).totalAssets;
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bottomSheetController = DraggableScrollableController();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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_onAssetChanged(widget.initialIndex);
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});
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}
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@override
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void dispose() {
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pageController.dispose();
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bottomSheetController.dispose();
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_cancelTimers();
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super.dispose();
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}
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Color get backgroundColor {
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if (showingBottomSheet && !context.isDarkTheme) {
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return Colors.white;
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}
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return Colors.black.withAlpha(backgroundOpacity);
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}
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void _cancelTimers() {
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for (final timer in _delayedOperations) {
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timer.cancel();
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}
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_delayedOperations.clear();
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}
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// This is used to calculate the scale of the asset when the bottom sheet is showing.
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// It is a small increment to ensure that the asset is slightly zoomed in when the
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// bottom sheet is showing, which emulates the zoom effect.
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double get _getScaleForBottomSheet =>
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(viewController?.prevValue.scale ?? viewController?.value.scale ?? 1.0) +
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0.01;
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Future<void> _precacheImage(int index) async {
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if (!mounted || index < 0 || index >= totalAssets) {
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return;
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}
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final asset = ref.read(timelineServiceProvider).getAsset(index);
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final screenSize = Size(context.width, context.height);
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// Precache both thumbnail and full image for smooth transitions
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unawaited(
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Future.wait([
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precacheImage(
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getThumbnailImageProvider(asset: asset, size: screenSize),
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context,
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onError: (_, __) {},
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),
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precacheImage(
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getFullImageProvider(asset, size: screenSize),
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context,
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onError: (_, __) {},
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),
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]),
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);
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}
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void _onAssetChanged(int index) {
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final asset = ref.read(timelineServiceProvider).getAsset(index);
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ref.read(currentAssetNotifier.notifier).setAsset(asset);
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unawaited(ref.read(timelineServiceProvider).preCacheAssets(index));
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_cancelTimers();
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// This will trigger the pre-caching of adjacent assets ensuring
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// that they are ready when the user navigates to them.
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final timer = Timer(Durations.medium4, () {
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// Check if widget is still mounted before proceeding
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if (!mounted) return;
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for (final offset in [-1, 1]) {
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unawaited(_precacheImage(index + offset));
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}
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});
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_delayedOperations.add(timer);
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}
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void _onPageBuild(PhotoViewControllerBase controller) {
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viewController ??= controller;
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if (showingBottomSheet) {
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final verticalOffset = (context.height * bottomSheetController.size) -
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(context.height * _kBottomSheetMinimumExtent);
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controller.position = Offset(0, -verticalOffset);
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}
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}
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void _onPageChanged(int index, PhotoViewControllerBase? controller) {
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_onAssetChanged(index);
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viewController = controller;
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// If the bottom sheet is showing, we need to adjust scale the asset to
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// emulate the zoom effect
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if (showingBottomSheet) {
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initialScale = controller?.scale;
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controller?.scale = _getScaleForBottomSheet;
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}
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}
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void _onDragStart(
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_,
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DragStartDetails details,
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PhotoViewControllerValue value,
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PhotoViewScaleStateController scaleStateController,
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) {
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dragDownPosition = details.localPosition;
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initialPhotoViewState = value;
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final isZoomed =
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scaleStateController.scaleState == PhotoViewScaleState.zoomedIn ||
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scaleStateController.scaleState == PhotoViewScaleState.covering;
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if (!showingBottomSheet && isZoomed) {
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blockGestures = true;
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}
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}
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void _onDragEnd(BuildContext ctx, _, __) {
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dragInProgress = false;
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if (shouldPopOnDrag) {
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// Dismiss immediately without state updates to avoid rebuilds
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ctx.maybePop();
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return;
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}
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// Do not reset the state if the bottom sheet is showing
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if (showingBottomSheet) {
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_snapBottomSheet();
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return;
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}
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// If the gestures are blocked, do not reset the state
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if (blockGestures) {
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blockGestures = false;
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return;
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}
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setState(() {
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shouldPopOnDrag = false;
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hasDraggedDown = null;
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backgroundOpacity = 255;
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viewController?.animateMultiple(
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position: initialPhotoViewState.position,
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scale: initialPhotoViewState.scale,
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rotation: initialPhotoViewState.rotation,
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);
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});
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}
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void _onDragUpdate(BuildContext ctx, DragUpdateDetails details, _) {
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if (blockGestures) {
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return;
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}
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dragInProgress = true;
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final delta = details.localPosition - dragDownPosition;
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hasDraggedDown ??= delta.dy > 0;
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if (!hasDraggedDown! || showingBottomSheet) {
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_handleDragUp(ctx, delta);
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return;
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}
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_handleDragDown(ctx, delta);
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}
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void _handleDragUp(BuildContext ctx, Offset delta) {
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const double openThreshold = 50;
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const double closeThreshold = 25;
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final position = initialPhotoViewState.position + Offset(0, delta.dy);
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final distanceToOrigin = position.distance;
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if (showingBottomSheet && distanceToOrigin < closeThreshold) {
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// Prevents the user from dragging the bottom sheet further down
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blockGestures = true;
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sheetCloseNotifier?.close();
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return;
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}
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viewController?.updateMultiple(position: position);
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// Moves the bottom sheet when the asset is being dragged up
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if (showingBottomSheet && bottomSheetController.isAttached) {
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final centre = (ctx.height * _kBottomSheetMinimumExtent);
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bottomSheetController.jumpTo((centre + distanceToOrigin) / ctx.height);
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}
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if (distanceToOrigin > openThreshold && !showingBottomSheet) {
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_openBottomSheet(ctx);
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}
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}
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void _openBottomSheet(BuildContext ctx) {
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setState(() {
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initialScale = viewController?.scale;
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viewController?.animateMultiple(scale: _getScaleForBottomSheet);
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showingBottomSheet = true;
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previousExtent = _kBottomSheetMinimumExtent;
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sheetCloseNotifier = showBottomSheet(
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context: ctx,
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sheetAnimationStyle: AnimationStyle(
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duration: Duration.zero,
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reverseDuration: Duration.zero,
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),
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shape: const RoundedRectangleBorder(
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borderRadius: BorderRadius.vertical(top: Radius.circular(20.0)),
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),
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backgroundColor: ctx.colorScheme.surfaceContainerLowest,
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builder: (_) {
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return NotificationListener<Notification>(
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onNotification: _onNotification,
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child: AssetDetailBottomSheet(
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controller: bottomSheetController,
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initialChildSize: _kBottomSheetMinimumExtent,
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),
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);
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},
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);
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sheetCloseNotifier?.closed.then((_) => _handleSheetClose());
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});
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}
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void _handleSheetClose() {
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setState(() {
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showingBottomSheet = false;
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sheetCloseNotifier = null;
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viewController?.animateMultiple(
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position: Offset.zero,
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scale: initialScale,
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);
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shouldPopOnDrag = false;
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hasDraggedDown = null;
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});
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}
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void _snapBottomSheet() {
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if (bottomSheetController.size > _kBottomSheetSnapExtent ||
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bottomSheetController.size < 0.4) {
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return;
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}
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isSnapping = true;
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bottomSheetController.animateTo(
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_kBottomSheetSnapExtent,
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duration: Durations.short3,
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curve: Curves.easeOut,
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);
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}
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bool _onNotification(Notification delta) {
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// Ignore notifications when user dragging the asset
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if (dragInProgress) {
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return false;
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}
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if (delta is DraggableScrollableNotification) {
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_handleDraggableNotification(delta);
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}
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// Handle sheet snap manually so that the it snaps only at _kBottomSheetSnapExtent but not after
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// the isSnapping guard is to prevent the notification from recursively handling the
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// notification, eventually resulting in a heap overflow
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if (!isSnapping && delta is ScrollEndNotification) {
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_snapBottomSheet();
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}
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return false;
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}
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void _handleDraggableNotification(DraggableScrollableNotification delta) {
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final verticalOffset = (context.height * delta.extent) -
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(context.height * _kBottomSheetMinimumExtent);
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// Moves the asset when the bottom sheet is being dragged
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if (verticalOffset > 0) {
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viewController?.position = Offset(0, -verticalOffset);
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}
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final currentExtent = delta.extent;
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final isDraggingDown = currentExtent < previousExtent;
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previousExtent = currentExtent;
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// Closes the bottom sheet if the user is dragging down and the extent is less than the snap extent
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if (isDraggingDown && delta.extent < _kBottomSheetSnapExtent - 0.1) {
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sheetCloseNotifier?.close();
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}
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}
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void _handleDragDown(BuildContext ctx, Offset delta) {
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const double dragRatio = 0.2;
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const double popThreshold = 75;
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final distance = delta.distance;
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final newShouldPopOnDrag = delta.dy > 0 && distance > popThreshold;
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final maxScaleDistance = ctx.height * 0.5;
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final scaleReduction = (distance / maxScaleDistance).clamp(0.0, dragRatio);
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double? updatedScale;
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if (initialPhotoViewState.scale != null) {
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updatedScale = initialPhotoViewState.scale! * (1.0 - scaleReduction);
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}
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final newBackgroundOpacity =
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(255 * (1.0 - (scaleReduction / dragRatio))).round();
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viewController?.updateMultiple(
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position: initialPhotoViewState.position + delta,
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scale: updatedScale,
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);
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if (shouldPopOnDrag != newShouldPopOnDrag ||
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backgroundOpacity != newBackgroundOpacity) {
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setState(() {
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shouldPopOnDrag = newShouldPopOnDrag;
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backgroundOpacity = newBackgroundOpacity;
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});
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}
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}
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Widget _placeholderBuilder(
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BuildContext ctx,
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ImageChunkEvent? progress,
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int index,
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) {
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final asset = ref.read(timelineServiceProvider).getAsset(index);
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return Container(
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width: double.infinity,
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height: double.infinity,
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color: backgroundColor,
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child: Thumbnail(
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asset: asset,
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fit: BoxFit.contain,
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size: Size(
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ctx.width,
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ctx.height,
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),
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),
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);
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}
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PhotoViewGalleryPageOptions _assetBuilder(BuildContext ctx, int index) {
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final asset = ref.read(timelineServiceProvider).getAsset(index);
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final size = Size(ctx.width, ctx.height);
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final imageProvider = getFullImageProvider(asset, size: size);
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return PhotoViewGalleryPageOptions(
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imageProvider: imageProvider,
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heroAttributes: PhotoViewHeroAttributes(tag: asset.heroTag),
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filterQuality: FilterQuality.high,
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tightMode: true,
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initialScale: PhotoViewComputedScale.contained * 0.999,
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minScale: PhotoViewComputedScale.contained * 0.999,
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disableScaleGestures: showingBottomSheet,
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onDragStart: _onDragStart,
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onDragUpdate: _onDragUpdate,
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onDragEnd: _onDragEnd,
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errorBuilder: (_, __, ___) => Container(
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width: ctx.width,
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height: ctx.height,
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color: backgroundColor,
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child: Thumbnail(
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asset: asset,
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fit: BoxFit.contain,
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size: size,
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),
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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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// Currently it is not possible to scroll the asset when the bottom sheet is open all the way.
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// Issue: https://github.com/flutter/flutter/issues/109037
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// TODO: Add a custom scrum builder once the fix lands on stable
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return Scaffold(
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backgroundColor: Colors.black.withAlpha(backgroundOpacity),
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body: PhotoViewGallery.builder(
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gaplessPlayback: true,
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loadingBuilder: _placeholderBuilder,
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pageController: pageController,
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scrollPhysics: platform.isIOS
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? const FastScrollPhysics() // Use bouncing physics for iOS
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: const FastClampingScrollPhysics() // Use heavy physics for Android
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,
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itemCount: totalAssets,
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onPageChanged: _onPageChanged,
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onPageBuild: _onPageBuild,
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builder: _assetBuilder,
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backgroundDecoration: BoxDecoration(color: backgroundColor),
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enablePanAlways: true,
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),
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);
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}
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}
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199
mobile/lib/presentation/widgets/asset_viewer/bottom_sheet.dart
Normal file
199
mobile/lib/presentation/widgets/asset_viewer/bottom_sheet.dart
Normal file
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@ -0,0 +1,199 @@
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import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:immich_mobile/domain/models/asset/base_asset.model.dart';
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import 'package:immich_mobile/domain/models/exif.model.dart';
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import 'package:immich_mobile/extensions/build_context_extensions.dart';
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import 'package:immich_mobile/extensions/translate_extensions.dart';
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import 'package:immich_mobile/presentation/widgets/bottom_app_bar/base_bottom_sheet.widget.dart';
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||||
import 'package:immich_mobile/providers/infrastructure/asset_viewer/current_asset.provider.dart';
|
||||
import 'package:immich_mobile/utils/bytes_units.dart';
|
||||
|
||||
const _kSeparator = ' • ';
|
||||
|
||||
class AssetDetailBottomSheet extends BaseBottomSheet {
|
||||
const AssetDetailBottomSheet({
|
||||
super.controller,
|
||||
super.initialChildSize,
|
||||
super.key,
|
||||
}) : super(
|
||||
actions: const [],
|
||||
slivers: const [_AssetDetailBottomSheet()],
|
||||
minChildSize: 0.1,
|
||||
maxChildSize: 1.0,
|
||||
expand: false,
|
||||
shouldCloseOnMinExtent: false,
|
||||
resizeOnScroll: false,
|
||||
);
|
||||
}
|
||||
|
||||
class _AssetDetailBottomSheet extends ConsumerWidget {
|
||||
const _AssetDetailBottomSheet();
|
||||
|
||||
String _getDateTime(BuildContext ctx, BaseAsset asset) {
|
||||
final dateTime = asset.createdAt.toLocal();
|
||||
final date = DateFormat.yMMMEd(ctx.locale.toLanguageTag()).format(dateTime);
|
||||
final time = DateFormat.jm(ctx.locale.toLanguageTag()).format(dateTime);
|
||||
return '$date$_kSeparator$time';
|
||||
}
|
||||
|
||||
String _getFileInfo(BaseAsset asset, ExifInfo? exifInfo) {
|
||||
final height = asset.height ?? exifInfo?.height;
|
||||
final width = asset.width ?? exifInfo?.width;
|
||||
final resolution =
|
||||
(width != null && height != null) ? "$width x $height" : null;
|
||||
final fileSize =
|
||||
exifInfo?.fileSize != null ? formatBytes(exifInfo!.fileSize!) : null;
|
||||
|
||||
return switch ((fileSize, resolution)) {
|
||||
(null, null) => '',
|
||||
(String fileSize, null) => fileSize,
|
||||
(null, String resolution) => resolution,
|
||||
(String fileSize, String resolution) =>
|
||||
'$fileSize$_kSeparator$resolution',
|
||||
};
|
||||
}
|
||||
|
||||
String? _getCameraInfoTitle(ExifInfo? exifInfo) {
|
||||
if (exifInfo == null) {
|
||||
return null;
|
||||
}
|
||||
|
||||
return switch ((exifInfo.make, exifInfo.model)) {
|
||||
(null, null) => null,
|
||||
(String make, null) => make,
|
||||
(null, String model) => model,
|
||||
(String make, String model) => '$make $model',
|
||||
};
|
||||
}
|
||||
|
||||
String? _getCameraInfoSubtitle(ExifInfo? exifInfo) {
|
||||
if (exifInfo == null) {
|
||||
return null;
|
||||
}
|
||||
|
||||
final fNumber =
|
||||
exifInfo.fNumber.isNotEmpty ? 'ƒ/${exifInfo.fNumber}' : null;
|
||||
final exposureTime =
|
||||
exifInfo.exposureTime.isNotEmpty ? exifInfo.exposureTime : null;
|
||||
final focalLength =
|
||||
exifInfo.focalLength.isNotEmpty ? '${exifInfo.focalLength} mm' : null;
|
||||
final iso = exifInfo.iso != null ? 'ISO ${exifInfo.iso}' : null;
|
||||
|
||||
return [fNumber, exposureTime, focalLength, iso]
|
||||
.where((spec) => spec != null && spec.isNotEmpty)
|
||||
.join(_kSeparator);
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final asset = ref.watch(currentAssetNotifier);
|
||||
final exifInfo = ref.watch(currentAssetExifProvider).valueOrNull;
|
||||
final cameraTitle = _getCameraInfoTitle(exifInfo);
|
||||
|
||||
return SliverList.list(
|
||||
children: [
|
||||
// Asset Date and Time
|
||||
_SheetTile(
|
||||
title: _getDateTime(context, asset),
|
||||
titleStyle: context.textTheme.bodyLarge
|
||||
?.copyWith(fontWeight: FontWeight.w600),
|
||||
),
|
||||
// Details header
|
||||
_SheetTile(
|
||||
title: 'exif_bottom_sheet_details'.t(context: context),
|
||||
titleStyle: context.textTheme.labelLarge?.copyWith(
|
||||
color: context.textTheme.labelLarge?.color,
|
||||
fontWeight: FontWeight.w600,
|
||||
),
|
||||
),
|
||||
// File info
|
||||
_SheetTile(
|
||||
title: asset.name,
|
||||
titleStyle: context.textTheme.labelLarge
|
||||
?.copyWith(fontWeight: FontWeight.w600),
|
||||
leading: Icon(
|
||||
asset.isImage ? Icons.image_outlined : Icons.videocam_outlined,
|
||||
size: 30,
|
||||
color: context.textTheme.labelLarge?.color,
|
||||
),
|
||||
subtitle: _getFileInfo(asset, exifInfo),
|
||||
subtitleStyle: context.textTheme.labelLarge?.copyWith(
|
||||
color: context.textTheme.labelLarge?.color?.withAlpha(200),
|
||||
),
|
||||
),
|
||||
// Camera info
|
||||
if (cameraTitle != null)
|
||||
_SheetTile(
|
||||
title: cameraTitle,
|
||||
titleStyle: context.textTheme.labelLarge
|
||||
?.copyWith(fontWeight: FontWeight.w600),
|
||||
leading: Icon(
|
||||
Icons.camera_outlined,
|
||||
size: 30,
|
||||
color: context.textTheme.labelLarge?.color,
|
||||
),
|
||||
subtitle: _getCameraInfoSubtitle(exifInfo),
|
||||
subtitleStyle: context.textTheme.labelLarge?.copyWith(
|
||||
color: context.textTheme.labelLarge?.color?.withAlpha(200),
|
||||
),
|
||||
),
|
||||
],
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class _SheetTile extends StatelessWidget {
|
||||
final String title;
|
||||
final Widget? leading;
|
||||
final String? subtitle;
|
||||
final TextStyle? titleStyle;
|
||||
final TextStyle? subtitleStyle;
|
||||
|
||||
const _SheetTile({
|
||||
required this.title,
|
||||
this.titleStyle,
|
||||
this.leading,
|
||||
this.subtitle,
|
||||
this.subtitleStyle,
|
||||
});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final Widget titleWidget;
|
||||
if (leading == null) {
|
||||
titleWidget = LimitedBox(
|
||||
maxWidth: double.infinity,
|
||||
child: Text(title, style: titleStyle),
|
||||
);
|
||||
} else {
|
||||
titleWidget = Container(
|
||||
width: double.infinity,
|
||||
padding: const EdgeInsets.only(left: 15),
|
||||
child: Text(title, style: titleStyle),
|
||||
);
|
||||
}
|
||||
|
||||
final Widget? subtitleWidget;
|
||||
if (leading == null && subtitle != null) {
|
||||
subtitleWidget = Text(subtitle!, style: subtitleStyle);
|
||||
} else if (leading != null && subtitle != null) {
|
||||
subtitleWidget = Padding(
|
||||
padding: const EdgeInsets.only(left: 15),
|
||||
child: Text(subtitle!, style: subtitleStyle),
|
||||
);
|
||||
} else {
|
||||
subtitleWidget = null;
|
||||
}
|
||||
|
||||
return ListTile(
|
||||
dense: true,
|
||||
visualDensity: VisualDensity.compact,
|
||||
title: titleWidget,
|
||||
titleAlignment: ListTileTitleAlignment.center,
|
||||
leading: leading,
|
||||
contentPadding: leading == null ? null : const EdgeInsets.only(left: 25),
|
||||
subtitle: subtitleWidget,
|
||||
);
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue