aurora
/
nextcloud-neon
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

neon, neon_files: make NeonCachedImage easily extendable 

The new FilePreviewImage now also uses the mimetype as as svgHint
pull/432/head
Nikolas Rimikis 1 year ago
parent
5a68917500
commit
4f0009939e
No known key found for this signature in database
GPG Key ID: 85ED1DE9786A4FF2
3 changed files with 159 additions and 107 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 142
      packages/neon/neon/lib/src/widgets/cached_image.dart
  2. 11
      packages/neon/neon/lib/src/widgets/user_avatar.dart
  3. 89
      packages/neon/neon_files/lib/widgets/file_preview.dart

142
packages/neon/neon/lib/src/widgets/cached_image.dart
Unescape View File

@ -1,12 +1,12 @@
part of '../../neon.dart';
final _cacheManager = DefaultCacheManager();
typedef APIImageDownloader = Future<Uint8List> Function();
typedef CacheReviver = FutureOr<Uint8List?> Function(CacheManager cacheManager);
typedef ImageDownloader = FutureOr<Uint8List> Function();
typedef CacheWriter = Future<void> Function(CacheManager cacheManager, Uint8List image);
class NeonCachedImage extends StatefulWidget {
const NeonCachedImage._({
required this.getImageFile,
const NeonCachedImage({
required this.image,
required Key super.key,
this.isSvgHint = false,
this.size,
@ -15,87 +15,98 @@ class NeonCachedImage extends StatefulWidget {
this.iconColor,
});
factory NeonCachedImage.url({
NeonCachedImage.url({
required final String url,
final Size? size,
final BoxFit? fit,
final Color? svgColor,
final Color? iconColor,
final Key? key,
}) =>
NeonCachedImage._(
getImageFile: () async {
this.isSvgHint = false,
this.size,
this.fit,
this.svgColor,
this.iconColor,
}) : image = _getImageFromUrl(url),
super(key: key ?? Key(url));
NeonCachedImage.custom({
required final ImageDownloader getImage,
required final String cacheKey,
final CacheReviver? reviver,
final CacheWriter? writeCache,
this.isSvgHint = false,
this.size,
this.fit,
this.svgColor,
this.iconColor,
}) : image = _customImageGetter(
reviver,
getImage,
writeCache,
cacheKey,
),
super(key: Key(cacheKey));
final Future<Uint8List> image;
final bool isSvgHint;
final Size? size;
final BoxFit? fit;
final Color? svgColor;
final Color? iconColor;
static Future<Uint8List> _getImageFromUrl(final String url) async {
final file = await _cacheManager.getSingleFile(url);
return file.readAsBytes();
},
isSvgHint: Uri.parse(url).path.endsWith('.svg'),
size: size,
fit: fit,
svgColor: svgColor,
iconColor: iconColor,
key: key ?? Key(url),
);
}
factory NeonCachedImage.api({
required final Account account,
required final String cacheKey,
required final APIImageDownloader download,
final String? etag,
final Size? size,
final BoxFit? fit,
final Color? svgColor,
final Color? iconColor,
final Key? key,
}) {
final realKey = '${account.id}-$cacheKey';
return NeonCachedImage._(
getImageFile: () async {
final cacheFile = await _cacheManager.getFileFromCache(realKey);
static Future<Uint8List> _customImageGetter(
final CacheReviver? checkCache,
final ImageDownloader getImage,
final CacheWriter? writeCache,
final String cacheKey,
) async {
final cached = await checkCache?.call(_cacheManager) ?? await _defaultCacheReviver(cacheKey);
if (cached != null) {
return cached;
}
final data = await getImage();
unawaited(writeCache?.call(_cacheManager, data) ?? _defaultCacheWriter(data, cacheKey));
return data;
}
static Future<Uint8List?> _defaultCacheReviver(final String cacheKey) async {
final cacheFile = await _cacheManager.getFileFromCache(cacheKey);
if (cacheFile != null && cacheFile.validTill.isAfter(DateTime.now())) {
return cacheFile.file.readAsBytes();
}
final file = await download();
return null;
}
unawaited(
_cacheManager.putFile(
realKey,
file,
static Future<void> _defaultCacheWriter(
final Uint8List data,
final String cacheKey,
) async {
await _cacheManager.putFile(
cacheKey,
data,
maxAge: const Duration(days: 7),
eTag: etag,
),
);
return file;
},
size: size,
fit: fit,
svgColor: svgColor,
iconColor: iconColor,
key: key ?? Key(realKey),
);
}
final Future<Uint8List> Function() getImageFile;
final bool isSvgHint;
final Size? size;
final BoxFit? fit;
final Color? svgColor;
final Color? iconColor;
static final _cacheManager = DefaultCacheManager();
@override
State<NeonCachedImage> createState() => _NeonCachedImageState();
}
class _NeonCachedImageState extends State<NeonCachedImage> {
late Future<Uint8List> _future = widget.getImageFile();
@override
Widget build(final BuildContext context) => Center(
child: FutureBuilder<Uint8List>(
future: _future,
future: widget.image,
builder: (final context, final fileSnapshot) {
if (!fileSnapshot.hasData) {
return SizedBox(
@ -110,10 +121,7 @@ class _NeonCachedImageState extends State<NeonCachedImage> {
return NeonException(
fileSnapshot.error,
onRetry: () {
setState(() {
// ignore: discarded_futures
_future = widget.getImageFile();
});
setState(() {});
},
onlyIcon: true,
iconSize: widget.size?.shortestSide,

11
packages/neon/neon/lib/src/widgets/user_avatar.dart
Unescape View File

@ -43,7 +43,7 @@ class _UserAvatarState extends State<NeonUserAvatar> {
@override
Widget build(final BuildContext context) => LayoutBuilder(
builder: (final context, final constraints) {
final isDark = Theme.of(context).brightness == Brightness.dark;
final brightness = Theme.of(context).brightness;
size = constraints.constrain(Size.square(widget.size)).shortestSide;
final pixelSize = (size * MediaQuery.of(context).devicePixelRatio).toInt();
return Stack(
@ -53,11 +53,10 @@ class _UserAvatarState extends State<NeonUserAvatar> {
radius: size / 2,
backgroundColor: widget.backgroundColor,
child: ClipOval(
child: NeonCachedImage.api(
account: widget.account,
cacheKey: 'avatar-${widget.username}-${isDark ? 'dark' : 'light'}$pixelSize',
download: () async {
if (isDark) {
child: NeonCachedImage.custom(
cacheKey: '${widget.account.id}-avatar-${widget.username}-$brightness$pixelSize',
getImage: () async {
if (brightness == Brightness.dark) {
return widget.account.client.core.getDarkAvatar(
userId: widget.username,
size: pixelSize,

89
packages/neon/neon_files/lib/widgets/file_preview.dart
Unescape View File

@ -21,28 +21,31 @@ class FilePreview extends StatelessWidget {
final BorderRadius? borderRadius;
final bool withBackground;
int get width => size.width.toInt();
int get height => size.height.toInt();
@override
Widget build(final BuildContext context) {
final color = this.color ?? Theme.of(context).colorScheme.primary;
return SizedBox.fromSize(
size: size,
child: StreamBuilder<bool?>(
stream: bloc.options.showPreviewsOption.stream,
child: Builder(
builder: (final context) {
if (details.isDirectory) {
return Icon(
MdiIcons.folder,
color: color,
size: size.shortestSide,
);
}
return OptionBuilder<bool>(
option: bloc.options.showPreviewsOption,
builder: (final context, final showPreviewsSnapshot) {
if ((showPreviewsSnapshot.data ?? false) && (details.hasPreview ?? false)) {
if (showPreviewsSnapshot && (details.hasPreview ?? false)) {
final account = Provider.of<AccountsBloc>(context, listen: false).activeAccount.value!;
final child = NeonCachedImage.api(
final child = FilePreviewImage(
account: account,
cacheKey: 'preview-${details.path.join('/')}-$width-$height',
etag: details.etag,
download: () async => account.client.core.getPreview(
file: details.path.join('/'),
x: width,
y: height,
),
file: details,
size: size,
);
if (withBackground) {
return NeonImageWrapper(
@ -54,21 +57,63 @@ class FilePreview extends StatelessWidget {
return child;
}
if (details.isDirectory) {
return Icon(
MdiIcons.folder,
color: color,
size: size.shortestSide,
);
}
return FileIcon(
details.name,
color: color,
size: size.shortestSide,
);
},
);
},
),
);
}
}
class FilePreviewImage extends NeonCachedImage {
factory FilePreviewImage({
required final Account account,
required final FileDetails file,
required final Size size,
}) {
final width = size.width.toInt();
final height = size.height.toInt();
final path = file.path.join('/');
final cacheKey = '${account.id}-preview-$path-$width-$height';
return FilePreviewImage._(
account: account,
file: file,
size: size,
cacheKey: cacheKey,
path: path,
width: width,
height: height,
);
}
FilePreviewImage._({
required final Account account,
required final FileDetails file,
required Size super.size,
required super.cacheKey,
required final String path,
required final int width,
required final int height,
}) : super.custom(
getImage: () async => account.client.core.getPreview(
file: path,
x: width,
y: height,
),
writeCache: (final cacheManager, final data) async {
await cacheManager.putFile(
cacheKey,
data,
maxAge: const Duration(days: 7),
eTag: file.etag,
);
},
isSvgHint: file.mimeType?.contains('svg') ?? false,
);
}

Write Preview
Loading…
Cancel
Save