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mirror of https://github.com/immich-app/immich.git synced 2024-12-23 02:06:15 +02:00
immich/mobile/lib/modules/asset_viewer/views/gallery_viewer.dart
Alex f057fe045e
refactor(mobile): entities and models (#9182)
* refactor(mobile): entities

* store entity

* refactor: models

* remove domain

* save all

* bad refactor
2024-04-30 21:36:40 -05:00

422 lines
15 KiB
Dart

import 'dart:async';
import 'dart:io';
import 'dart:math';
import 'dart:ui' as ui;
import 'package:auto_route/auto_route.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_hooks/flutter_hooks.dart' hide Store;
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/extensions/build_context_extensions.dart';
import 'package:immich_mobile/modules/asset_viewer/image_providers/immich_remote_image_provider.dart';
import 'package:immich_mobile/modules/asset_viewer/providers/asset_stack.provider.dart';
import 'package:immich_mobile/modules/asset_viewer/providers/current_asset.provider.dart';
import 'package:immich_mobile/modules/asset_viewer/providers/show_controls.provider.dart';
import 'package:immich_mobile/modules/asset_viewer/providers/video_player_value_provider.dart';
import 'package:immich_mobile/modules/asset_viewer/ui/advanced_bottom_sheet.dart';
import 'package:immich_mobile/modules/asset_viewer/ui/bottom_gallery_bar.dart';
import 'package:immich_mobile/modules/asset_viewer/ui/exif_sheet/exif_bottom_sheet.dart';
import 'package:immich_mobile/modules/asset_viewer/ui/gallery_app_bar.dart';
import 'package:immich_mobile/modules/asset_viewer/views/video_viewer_page.dart';
import 'package:immich_mobile/modules/settings/providers/app_settings.provider.dart';
import 'package:immich_mobile/modules/settings/services/app_settings.service.dart';
import 'package:immich_mobile/shared/providers/haptic_feedback.provider.dart';
import 'package:immich_mobile/shared/ui/immich_image.dart';
import 'package:immich_mobile/shared/ui/immich_thumbnail.dart';
import 'package:immich_mobile/shared/ui/photo_view/photo_view_gallery.dart';
import 'package:immich_mobile/shared/ui/photo_view/src/photo_view_computed_scale.dart';
import 'package:immich_mobile/shared/ui/photo_view/src/photo_view_scale_state.dart';
import 'package:immich_mobile/shared/ui/photo_view/src/utils/photo_view_hero_attributes.dart';
import 'package:immich_mobile/entities/asset.entity.dart';
import 'package:isar/isar.dart';
import 'package:openapi/api.dart' show ThumbnailFormat;
@RoutePage()
// ignore: must_be_immutable
class GalleryViewerPage extends HookConsumerWidget {
final Asset Function(int index) loadAsset;
final int totalAssets;
final int initialIndex;
final int heroOffset;
final bool showStack;
GalleryViewerPage({
super.key,
required this.initialIndex,
required this.loadAsset,
required this.totalAssets,
this.heroOffset = 0,
this.showStack = false,
}) : controller = PageController(initialPage: initialIndex);
final PageController controller;
static const jpeg = ThumbnailFormat.JPEG;
static const webp = ThumbnailFormat.WEBP;
@override
Widget build(BuildContext context, WidgetRef ref) {
final settings = ref.watch(appSettingsServiceProvider);
final isLoadPreview = useState(AppSettingsEnum.loadPreview.defaultValue);
final isLoadOriginal = useState(AppSettingsEnum.loadOriginal.defaultValue);
final isZoomed = useState(false);
final isPlayingVideo = useState(false);
final localPosition = useState<Offset?>(null);
final currentIndex = useState(initialIndex);
final currentAsset = loadAsset(currentIndex.value);
// Update is playing motion video
ref.listen(videoPlaybackValueProvider.select((v) => v.state), (_, state) {
isPlayingVideo.value = state == VideoPlaybackState.playing;
});
final stackIndex = useState(-1);
final stack = showStack && currentAsset.stackChildrenCount > 0
? ref.watch(assetStackStateProvider(currentAsset))
: <Asset>[];
final stackElements = showStack ? [currentAsset, ...stack] : <Asset>[];
// Assets from response DTOs do not have an isar id, querying which would give us the default autoIncrement id
final isFromDto = currentAsset.id == Isar.autoIncrement;
Asset asset = stackIndex.value == -1
? currentAsset
: stackElements.elementAt(stackIndex.value);
final isMotionPhoto = asset.livePhotoVideoId != null;
// Listen provider to prevent autoDispose when navigating to other routes from within the gallery page
ref.listen(currentAssetProvider, (_, __) {});
useEffect(
() {
// Delay state update to after the execution of build method
Future.microtask(
() => ref.read(currentAssetProvider.notifier).set(asset),
);
return null;
},
[asset],
);
useEffect(
() {
isLoadPreview.value =
settings.getSetting<bool>(AppSettingsEnum.loadPreview);
isLoadOriginal.value =
settings.getSetting<bool>(AppSettingsEnum.loadOriginal);
return null;
},
[],
);
Future<void> precacheNextImage(int index) async {
void onError(Object exception, StackTrace? stackTrace) {
// swallow error silently
debugPrint('Error precaching next image: $exception, $stackTrace');
}
if (index < totalAssets && index >= 0) {
final asset = loadAsset(index);
await precacheImage(
ImmichImage.imageProvider(asset: asset),
context,
onError: onError,
);
}
}
void showInfo() {
showModalBottomSheet(
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(15.0)),
),
barrierColor: Colors.transparent,
isScrollControlled: true,
showDragHandle: true,
enableDrag: true,
context: context,
useSafeArea: true,
builder: (context) {
return FractionallySizedBox(
heightFactor: 0.75,
child: Padding(
padding: EdgeInsets.only(
bottom: MediaQuery.viewInsetsOf(context).bottom,
),
child: ref
.watch(appSettingsServiceProvider)
.getSetting<bool>(AppSettingsEnum.advancedTroubleshooting)
? AdvancedBottomSheet(assetDetail: asset)
: ExifBottomSheet(asset: asset),
),
);
},
);
}
void handleSwipeUpDown(DragUpdateDetails details) {
const int sensitivity = 15;
const int dxThreshold = 50;
const double ratioThreshold = 3.0;
if (isZoomed.value) {
return;
}
// Guard [localPosition] null
if (localPosition.value == null) {
return;
}
// Check for delta from initial down point
final d = details.localPosition - localPosition.value!;
// If the magnitude of the dx swipe is large, we probably didn't mean to go down
if (d.dx.abs() > dxThreshold) {
return;
}
final ratio = d.dy / max(d.dx.abs(), 1);
if (d.dy > sensitivity && ratio > ratioThreshold) {
context.popRoute();
} else if (d.dy < -sensitivity && ratio < -ratioThreshold) {
showInfo();
}
}
useEffect(
() {
if (ref.read(showControlsProvider)) {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
} else {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersive);
}
isPlayingVideo.value = false;
return null;
},
[],
);
useEffect(
() {
// No need to await this
unawaited(
// Delay this a bit so we can finish loading the page
Future.delayed(const Duration(milliseconds: 400)).then(
// Precache the next image
(_) => precacheNextImage(currentIndex.value + 1),
),
);
return null;
},
[],
);
ref.listen(showControlsProvider, (_, show) {
if (show) {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
} else {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersive);
}
});
Widget buildStackedChildren() {
return ListView.builder(
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: stackElements.length,
padding: const EdgeInsets.only(
left: 5,
right: 5,
bottom: 30,
),
itemBuilder: (context, index) {
final assetId = stackElements.elementAt(index).remoteId;
return Padding(
padding: const EdgeInsets.only(right: 5),
child: GestureDetector(
onTap: () => stackIndex.value = index,
child: Container(
width: 60,
height: 60,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(6),
border: (stackIndex.value == -1 && index == 0) ||
index == stackIndex.value
? Border.all(
color: Colors.white,
width: 2,
)
: null,
),
child: ClipRRect(
borderRadius: BorderRadius.circular(4),
child: Image(
fit: BoxFit.cover,
image: ImmichRemoteImageProvider(assetId: assetId!),
),
),
),
),
);
},
);
}
return PopScope(
canPop: false,
onPopInvoked: (_) {
// Change immersive mode back to normal "edgeToEdge" mode
SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
context.pop();
},
child: Scaffold(
backgroundColor: Colors.black,
body: Stack(
children: [
PhotoViewGallery.builder(
scaleStateChangedCallback: (state) {
isZoomed.value = state != PhotoViewScaleState.initial;
ref.read(showControlsProvider.notifier).show = !isZoomed.value;
},
loadingBuilder: (context, event, index) => ClipRect(
child: Stack(
fit: StackFit.expand,
children: [
BackdropFilter(
filter: ui.ImageFilter.blur(
sigmaX: 10,
sigmaY: 10,
),
),
ImmichThumbnail(
asset: asset,
fit: BoxFit.contain,
),
],
),
),
pageController: controller,
scrollPhysics: isZoomed.value
? const NeverScrollableScrollPhysics() // Don't allow paging while scrolled in
: (Platform.isIOS
? const ScrollPhysics() // Use bouncing physics for iOS
: const ClampingScrollPhysics() // Use heavy physics for Android
),
itemCount: totalAssets,
scrollDirection: Axis.horizontal,
onPageChanged: (value) async {
final next = currentIndex.value < value ? value + 1 : value - 1;
ref.read(hapticFeedbackProvider.notifier).selectionClick();
currentIndex.value = value;
stackIndex.value = -1;
isPlayingVideo.value = false;
// Wait for page change animation to finish
await Future.delayed(const Duration(milliseconds: 400));
// Then precache the next image
unawaited(precacheNextImage(next));
},
builder: (context, index) {
final a =
index == currentIndex.value ? asset : loadAsset(index);
final ImageProvider provider =
ImmichImage.imageProvider(asset: a);
if (a.isImage && !isPlayingVideo.value) {
return PhotoViewGalleryPageOptions(
onDragStart: (_, details, __) =>
localPosition.value = details.localPosition,
onDragUpdate: (_, details, __) =>
handleSwipeUpDown(details),
onTapDown: (_, __, ___) {
ref.read(showControlsProvider.notifier).toggle();
},
imageProvider: provider,
heroAttributes: PhotoViewHeroAttributes(
tag: isFromDto
? '${currentAsset.remoteId}-$heroOffset'
: currentAsset.id + heroOffset,
transitionOnUserGestures: true,
),
filterQuality: FilterQuality.high,
tightMode: true,
minScale: PhotoViewComputedScale.contained,
errorBuilder: (context, error, stackTrace) => ImmichImage(
a,
fit: BoxFit.contain,
),
);
} else {
return PhotoViewGalleryPageOptions.customChild(
onDragStart: (_, details, __) =>
localPosition.value = details.localPosition,
onDragUpdate: (_, details, __) =>
handleSwipeUpDown(details),
heroAttributes: PhotoViewHeroAttributes(
tag: isFromDto
? '${currentAsset.remoteId}-$heroOffset'
: currentAsset.id + heroOffset,
),
filterQuality: FilterQuality.high,
maxScale: 1.0,
minScale: 1.0,
basePosition: Alignment.center,
child: VideoViewerPage(
key: ValueKey(a),
asset: a,
isMotionVideo: a.livePhotoVideoId != null,
placeholder: Image(
image: provider,
fit: BoxFit.contain,
height: context.height,
width: context.width,
alignment: Alignment.center,
),
),
);
}
},
),
Positioned(
top: 0,
left: 0,
right: 0,
child: GalleryAppBar(
asset: asset,
showInfo: showInfo,
isPlayingVideo: isPlayingVideo.value,
onToggleMotionVideo: () =>
isPlayingVideo.value = !isPlayingVideo.value,
),
),
Positioned(
bottom: 0,
left: 0,
right: 0,
child: Column(
children: [
Visibility(
visible: stack.isNotEmpty,
child: SizedBox(
height: 80,
child: buildStackedChildren(),
),
),
BottomGalleryBar(
totalAssets: totalAssets,
controller: controller,
showStack: showStack,
stackIndex: stackIndex.value,
asset: asset,
showVideoPlayerControls: !asset.isImage && !isMotionPhoto,
),
],
),
),
],
),
),
);
}
}