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mirror of https://github.com/immich-app/immich.git synced 2024-12-19 00:32:49 +02:00
immich/mobile/lib/modules/asset_viewer/views/gallery_viewer.dart
2023-05-09 08:58:27 -05:00

560 lines
21 KiB
Dart

import 'dart:io';
import 'package:easy_localization/easy_localization.dart';
import 'package:auto_route/auto_route.dart';
import 'package:cached_network_image/cached_network_image.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/modules/album/ui/add_to_album_bottom_sheet.dart';
import 'package:immich_mobile/modules/asset_viewer/providers/image_viewer_page_state.provider.dart';
import 'package:immich_mobile/modules/asset_viewer/ui/advanced_bottom_sheet.dart';
import 'package:immich_mobile/modules/asset_viewer/ui/exif_bottom_sheet.dart';
import 'package:immich_mobile/modules/asset_viewer/ui/top_control_app_bar.dart';
import 'package:immich_mobile/modules/asset_viewer/views/video_viewer_page.dart';
import 'package:immich_mobile/modules/favorite/providers/favorite_provider.dart';
import 'package:immich_mobile/shared/models/store.dart';
import 'package:immich_mobile/shared/services/asset.service.dart';
import 'package:immich_mobile/modules/home/ui/delete_dialog.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/ui/immich_image.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/shared/models/asset.dart';
import 'package:immich_mobile/shared/providers/asset.provider.dart';
import 'package:immich_mobile/shared/ui/immich_loading_indicator.dart';
import 'package:immich_mobile/utils/image_url_builder.dart';
import 'package:photo_manager/photo_manager.dart';
import 'package:openapi/api.dart' as api;
// ignore: must_be_immutable
class GalleryViewerPage extends HookConsumerWidget {
final List<Asset> assetList;
final Asset asset;
GalleryViewerPage({
super.key,
required this.assetList,
required this.asset,
}) : controller = PageController(initialPage: assetList.indexOf(asset));
Asset? assetDetail;
final PageController controller;
@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<bool>(false);
final showAppBar = useState<bool>(true);
final indexOfAsset = useState(assetList.indexOf(asset));
final isPlayingMotionVideo = useState(false);
final isPlayingVideo = useState(false);
late Offset localPosition;
final authToken = 'Bearer ${Store.get(StoreKey.accessToken)}';
showAppBar.addListener(() {
// Change to and from immersive mode, hiding navigation and app bar
if (showAppBar.value) {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
} else {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersive);
}
});
useEffect(
() {
isLoadPreview.value =
settings.getSetting<bool>(AppSettingsEnum.loadPreview);
isLoadOriginal.value =
settings.getSetting<bool>(AppSettingsEnum.loadOriginal);
isPlayingMotionVideo.value = false;
return null;
},
[],
);
void toggleFavorite(Asset asset) {
ref.watch(favoriteProvider.notifier).toggleFavorite(asset);
}
void getAssetExif() async {
assetDetail = assetList[indexOfAsset.value];
assetDetail = await ref
.watch(assetServiceProvider)
.loadExif(assetList[indexOfAsset.value]);
}
/// Thumbnail image of a remote asset. Required asset.isRemote
ImageProvider remoteThumbnailImageProvider(
Asset asset,
api.ThumbnailFormat type,
) {
return CachedNetworkImageProvider(
getThumbnailUrl(
asset,
type: type,
),
cacheKey: getThumbnailCacheKey(
asset,
type: type,
),
headers: {"Authorization": authToken},
);
}
/// Original (large) image of a remote asset. Required asset.isRemote
ImageProvider originalImageProvider(Asset asset) {
return CachedNetworkImageProvider(
getImageUrl(asset),
cacheKey: getImageCacheKey(asset),
headers: {"Authorization": authToken},
);
}
/// Thumbnail image of a local asset. Required asset.isLocal
ImageProvider localThumbnailImageProvider(Asset asset) {
return AssetEntityImageProvider(
asset.local!,
isOriginal: false,
thumbnailSize: ThumbnailSize(
MediaQuery.of(context).size.width.floor(),
MediaQuery.of(context).size.height.floor(),
),
);
}
/// Original (large) image of a local asset. Required asset.isLocal
ImageProvider localImageProvider(Asset asset) {
return AssetEntityImageProvider(
isOriginal: true,
asset.local!,
);
}
void precacheNextImage(int index) {
if (index < assetList.length && index >= 0) {
final asset = assetList[index];
if (asset.isLocal) {
// Preload the local asset
precacheImage(localImageProvider(asset), context);
} else {
onError(Object exception, StackTrace? stackTrace) {
// swallow error silently
}
// Probably load WEBP either way
precacheImage(
remoteThumbnailImageProvider(
asset,
api.ThumbnailFormat.WEBP,
),
context,
onError: onError,
);
if (isLoadPreview.value) {
// Precache the JPEG thumbnail
precacheImage(
remoteThumbnailImageProvider(
asset,
api.ThumbnailFormat.JPEG,
),
context,
onError: onError,
);
}
if (isLoadOriginal.value) {
// Preload the original asset
precacheImage(
originalImageProvider(asset),
context,
onError: onError,
);
}
}
}
}
void showInfo() {
showModalBottomSheet(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15.0),
),
barrierColor: Colors.transparent,
backgroundColor: Colors.transparent,
isScrollControlled: true,
context: context,
builder: (context) {
if (ref
.watch(appSettingsServiceProvider)
.getSetting<bool>(AppSettingsEnum.advancedTroubleshooting)) {
return AdvancedBottomSheet(assetDetail: assetDetail!);
}
return Padding(
padding: EdgeInsets.only(
bottom: MediaQuery.of(context).viewInsets.bottom,
),
child: ExifBottomSheet(asset: assetDetail!),
);
},
);
}
void handleDelete(Asset deleteAsset) {
showDialog(
context: context,
builder: (BuildContext _) {
return DeleteDialog(
onDelete: () {
if (assetList.length == 1) {
// Handle only one asset
AutoRouter.of(context).pop();
} else {
// Go to next page otherwise
controller.nextPage(
duration: const Duration(milliseconds: 100),
curve: Curves.fastLinearToSlowEaseIn,
);
}
assetList.remove(deleteAsset);
ref.watch(assetProvider.notifier).deleteAssets({deleteAsset});
},
);
},
);
}
void addToAlbum(Asset addToAlbumAsset) {
showModalBottomSheet(
elevation: 0,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15.0),
),
context: context,
builder: (BuildContext _) {
return AddToAlbumBottomSheet(
assets: [addToAlbumAsset],
);
},
);
}
void handleSwipeUpDown(DragUpdateDetails details) {
int sensitivity = 15;
int dxThreshold = 50;
if (isZoomed.value) {
return;
}
// Check for delta from initial down point
final d = details.localPosition - localPosition;
// If the magnitude of the dx swipe is large, we probably didn't mean to go down
if (d.dx.abs() > dxThreshold) {
return;
}
if (details.delta.dy > sensitivity) {
AutoRouter.of(context).pop();
} else if (details.delta.dy < -sensitivity) {
showInfo();
}
}
shareAsset() {
ref
.watch(imageViewerStateProvider.notifier)
.shareAsset(assetList[indexOfAsset.value], context);
}
handleArchive(Asset asset) {
ref
.watch(assetProvider.notifier)
.toggleArchive([asset], !asset.isArchived);
AutoRouter.of(context).pop();
}
buildAppBar() {
final show = (showAppBar.value || // onTap has the final say
(showAppBar.value && !isZoomed.value)) &&
!isPlayingVideo.value;
return AnimatedOpacity(
duration: const Duration(milliseconds: 100),
opacity: show ? 1.0 : 0.0,
child: Container(
color: Colors.black.withOpacity(0.4),
child: TopControlAppBar(
isPlayingMotionVideo: isPlayingMotionVideo.value,
asset: assetList[indexOfAsset.value],
isFavorite: ref.watch(favoriteProvider).contains(
assetList[indexOfAsset.value].id,
),
onMoreInfoPressed: () {
showInfo();
},
onFavorite: () {
toggleFavorite(assetList[indexOfAsset.value]);
},
onDownloadPressed: assetList[indexOfAsset.value].storage ==
AssetState.local
? null
: () {
ref.watch(imageViewerStateProvider.notifier).downloadAsset(
assetList[indexOfAsset.value],
context,
);
},
onToggleMotionVideo: (() {
isPlayingMotionVideo.value = !isPlayingMotionVideo.value;
}),
onAddToAlbumPressed: () =>
addToAlbum(assetList[indexOfAsset.value]),
),
),
);
}
buildBottomBar() {
final show = (showAppBar.value || // onTap has the final say
(showAppBar.value && !isZoomed.value)) &&
!isPlayingVideo.value;
final currentAsset = assetList[indexOfAsset.value];
return AnimatedOpacity(
duration: const Duration(milliseconds: 100),
opacity: show ? 1.0 : 0.0,
child: BottomNavigationBar(
backgroundColor: Colors.black.withOpacity(0.4),
unselectedIconTheme: const IconThemeData(color: Colors.white),
selectedIconTheme: const IconThemeData(color: Colors.white),
unselectedLabelStyle: const TextStyle(color: Colors.black),
selectedLabelStyle: const TextStyle(color: Colors.black),
showSelectedLabels: false,
showUnselectedLabels: false,
items: [
BottomNavigationBarItem(
icon: const Icon(Icons.ios_share_rounded),
label: 'control_bottom_app_bar_share'.tr(),
tooltip: 'control_bottom_app_bar_share'.tr(),
),
currentAsset.isArchived
? BottomNavigationBarItem(
icon: const Icon(Icons.unarchive_rounded),
label: 'control_bottom_app_bar_unarchive'.tr(),
tooltip: 'control_bottom_app_bar_unarchive'.tr(),
)
: BottomNavigationBarItem(
icon: const Icon(Icons.archive_outlined),
label: 'control_bottom_app_bar_archive'.tr(),
tooltip: 'control_bottom_app_bar_archive'.tr(),
),
BottomNavigationBarItem(
icon: const Icon(Icons.delete_outline),
label: 'control_bottom_app_bar_delete'.tr(),
tooltip: 'control_bottom_app_bar_delete'.tr(),
),
],
onTap: (index) {
switch (index) {
case 0:
shareAsset();
break;
case 1:
handleArchive(assetList[indexOfAsset.value]);
break;
case 2:
handleDelete(assetList[indexOfAsset.value]);
break;
}
},
),
);
}
return Scaffold(
backgroundColor: Colors.black,
body: WillPopScope(
onWillPop: () async {
// Change immersive mode back to normal "edgeToEdge" mode
await SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
return true;
},
child: Stack(
children: [
PhotoViewGallery.builder(
scaleStateChangedCallback: (state) {
isZoomed.value = state != PhotoViewScaleState.initial;
showAppBar.value = !isZoomed.value;
},
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: assetList.length,
scrollDirection: Axis.horizontal,
onPageChanged: (value) {
// Precache image
if (indexOfAsset.value < value) {
// Moving forwards, so precache the next asset
precacheNextImage(value + 1);
} else {
// Moving backwards, so precache previous asset
precacheNextImage(value - 1);
}
indexOfAsset.value = value;
HapticFeedback.selectionClick();
},
loadingBuilder: isLoadPreview.value
? (context, event) {
final asset = assetList[indexOfAsset.value];
if (!asset.isLocal) {
// Use the WEBP Thumbnail as a placeholder for the JPEG thumbnail to achieve
// Three-Stage Loading (WEBP -> JPEG -> Original)
final webPThumbnail = CachedNetworkImage(
imageUrl: getThumbnailUrl(
asset,
type: api.ThumbnailFormat.WEBP,
),
cacheKey: getThumbnailCacheKey(
asset,
type: api.ThumbnailFormat.WEBP,
),
httpHeaders: {'Authorization': authToken},
progressIndicatorBuilder: (_, __, ___) =>
const Center(
child: ImmichLoadingIndicator(),
),
fadeInDuration: const Duration(milliseconds: 0),
fit: BoxFit.contain,
errorWidget: (context, url, error) =>
const Icon(Icons.image_not_supported_outlined),
);
if (isLoadOriginal.value) {
// loading the preview in the loadingBuilder only
// makes sense if the original is loaded in the builder
return CachedNetworkImage(
imageUrl: getThumbnailUrl(
asset,
type: api.ThumbnailFormat.JPEG,
),
cacheKey: getThumbnailCacheKey(
asset,
type: api.ThumbnailFormat.JPEG,
),
httpHeaders: {'Authorization': authToken},
fit: BoxFit.contain,
fadeInDuration: const Duration(milliseconds: 0),
placeholder: (_, __) => webPThumbnail,
errorWidget: (_, __, ___) => webPThumbnail,
);
} else {
return webPThumbnail;
}
} else {
return Image(
image: localThumbnailImageProvider(asset),
fit: BoxFit.contain,
);
}
}
: null,
builder: (context, index) {
getAssetExif();
if (assetList[index].isImage && !isPlayingMotionVideo.value) {
// Show photo
final ImageProvider provider;
if (assetList[index].isLocal) {
provider = localImageProvider(assetList[index]);
} else {
if (isLoadOriginal.value) {
provider = originalImageProvider(assetList[index]);
} else if (isLoadPreview.value) {
provider = remoteThumbnailImageProvider(
assetList[index],
api.ThumbnailFormat.JPEG,
);
} else {
provider = remoteThumbnailImageProvider(
assetList[index],
api.ThumbnailFormat.WEBP,
);
}
}
return PhotoViewGalleryPageOptions(
onDragStart: (_, details, __) =>
localPosition = details.localPosition,
onDragUpdate: (_, details, __) =>
handleSwipeUpDown(details),
onTapDown: (_, __, ___) =>
showAppBar.value = !showAppBar.value,
imageProvider: provider,
heroAttributes: PhotoViewHeroAttributes(
tag: assetList[index].id,
),
filterQuality: FilterQuality.high,
tightMode: true,
minScale: PhotoViewComputedScale.contained,
errorBuilder: (context, error, stackTrace) => ImmichImage(
assetList[indexOfAsset.value],
fit: BoxFit.contain,
),
);
} else {
return PhotoViewGalleryPageOptions.customChild(
onDragStart: (_, details, __) =>
localPosition = details.localPosition,
onDragUpdate: (_, details, __) =>
handleSwipeUpDown(details),
heroAttributes: PhotoViewHeroAttributes(
tag: assetList[index].id,
),
filterQuality: FilterQuality.high,
maxScale: 1.0,
minScale: 1.0,
basePosition: Alignment.bottomCenter,
child: SafeArea(
child: VideoViewerPage(
onPlaying: () => isPlayingVideo.value = true,
onPaused: () => isPlayingVideo.value = false,
asset: assetList[index],
isMotionVideo: isPlayingMotionVideo.value,
onVideoEnded: () {
if (isPlayingMotionVideo.value) {
isPlayingMotionVideo.value = false;
}
},
),
),
);
}
},
),
Positioned(
top: 0,
left: 0,
right: 0,
child: buildAppBar(),
),
Positioned(
bottom: 0,
left: 0,
right: 0,
child: buildBottomBar(),
),
],
),
),
);
}
}