Files
App/lib/widgets/content/cloud_file_collection.dart
2025-11-02 22:34:32 +08:00

612 lines
18 KiB
Dart

import 'dart:math' as math;
import 'dart:ui';
import 'package:dismissible_page/dismissible_page.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter_blurhash/flutter_blurhash.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:gap/gap.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:island/models/file.dart';
import 'package:island/pods/config.dart';
import 'package:island/widgets/content/cloud_files.dart';
import 'package:island/widgets/content/cloud_file_lightbox.dart';
import 'package:island/widgets/content/sensitive.dart';
import 'package:material_symbols_icons/symbols.dart';
import 'package:styled_widget/styled_widget.dart';
import 'package:uuid/uuid.dart';
class CloudFileList extends HookConsumerWidget {
final List<SnCloudFile> files;
final double maxHeight;
final double maxWidth;
final double? minWidth;
final bool disableZoomIn;
final bool disableConstraint;
final EdgeInsets? padding;
final bool isColumn;
const CloudFileList({
super.key,
required this.files,
this.maxHeight = 560,
this.maxWidth = double.infinity,
this.minWidth,
this.disableZoomIn = false,
this.disableConstraint = false,
this.padding,
this.isColumn = false,
});
double calculateAspectRatio() {
final ratios = <double>[];
// Collect all valid ratios
for (final file in files) {
final meta = file.fileMeta;
if (meta is Map<String, dynamic> && meta.containsKey('ratio')) {
final ratioValue = meta['ratio'];
if (ratioValue is num && ratioValue > 0) {
ratios.add(ratioValue.toDouble());
} else if (ratioValue is String) {
try {
final parsed = double.parse(ratioValue);
if (parsed > 0) ratios.add(parsed);
} catch (_) {
// Skip invalid string ratios
}
}
}
}
if (ratios.isEmpty) {
// Default to 4:3 aspect ratio when no valid ratios found
return 4 / 3;
}
if (ratios.length == 1) {
return ratios.first;
}
// Group similar ratios and find the most common one
final commonRatios = <double, int>{};
// Common aspect ratios to round to (with tolerance)
const tolerance = 0.05;
final standardRatios = [
1.0,
4 / 3,
3 / 2,
16 / 9,
5 / 3,
5 / 4,
7 / 5,
9 / 16,
2 / 3,
3 / 4,
4 / 5,
];
for (final ratio in ratios) {
// Find the closest standard ratio within tolerance
double closestRatio = ratio;
double minDiff = double.infinity;
for (final standard in standardRatios) {
final diff = (ratio - standard).abs();
if (diff < minDiff && diff <= tolerance) {
minDiff = diff;
closestRatio = standard;
}
}
// If no standard ratio is close enough, keep original
if (minDiff == double.infinity || minDiff > tolerance) {
closestRatio = ratio;
}
commonRatios[closestRatio] = (commonRatios[closestRatio] ?? 0) + 1;
}
// Find the most frequent ratio(s)
int maxCount = 0;
final mostFrequent = <double>[];
for (final entry in commonRatios.entries) {
if (entry.value > maxCount) {
maxCount = entry.value;
mostFrequent.clear();
mostFrequent.add(entry.key);
} else if (entry.value == maxCount) {
mostFrequent.add(entry.key);
}
}
// If only one most frequent ratio, return it
if (mostFrequent.length == 1) {
return mostFrequent.first;
}
// If multiple ratios have the same highest frequency, use median of them
mostFrequent.sort();
final mid = mostFrequent.length ~/ 2;
return mostFrequent.length.isEven
? (mostFrequent[mid - 1] + mostFrequent[mid]) / 2
: mostFrequent[mid];
}
@override
Widget build(BuildContext context, WidgetRef ref) {
final heroTags = useMemoized(
() => List.generate(
files.length,
(index) => 'cloud-files#${const Uuid().v4()}',
),
[files],
);
if (files.isEmpty) return const SizedBox.shrink();
if (isColumn) {
final children = <Widget>[];
const maxFiles = 2;
final filesToShow = files.take(maxFiles).toList();
for (var i = 0; i < filesToShow.length; i++) {
final file = filesToShow[i];
final isImage = file.mimeType?.startsWith('image') ?? false;
final isAudio = file.mimeType?.startsWith('audio') ?? false;
final widgetItem = ClipRRect(
borderRadius: const BorderRadius.all(Radius.circular(8)),
child: _CloudFileListEntry(
file: file,
heroTag: heroTags[i],
isImage: isImage,
disableZoomIn: disableZoomIn,
onTap: () {
if (!isImage) {
return;
}
if (!disableZoomIn) {
context.pushTransparentRoute(
CloudFileLightbox(item: file, heroTag: heroTags[i]),
rootNavigator: true,
);
}
},
),
);
Widget item;
if (isAudio) {
item = SizedBox(height: 120, child: widgetItem);
} else {
item = AspectRatio(
aspectRatio: file.fileMeta?['ratio'] as double? ?? 1.0,
child: widgetItem,
);
}
children.add(item);
if (i < filesToShow.length - 1) {
children.add(const Gap(8));
}
}
if (files.length > maxFiles) {
children.add(const Gap(8));
children.add(
Text(
'filesListAdditional'.plural(files.length - filesToShow.length),
textAlign: TextAlign.center,
style: Theme.of(context).textTheme.bodyMedium?.copyWith(
color: Theme.of(context).colorScheme.onSurface.withOpacity(0.7),
),
),
);
}
return Padding(
padding: padding ?? EdgeInsets.zero,
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: children,
),
);
}
if (files.length == 1) {
final isImage = files.first.mimeType?.startsWith('image') ?? false;
final isAudio = files.first.mimeType?.startsWith('audio') ?? false;
final widgetItem = ClipRRect(
borderRadius: const BorderRadius.all(Radius.circular(8)),
child: _CloudFileListEntry(
file: files.first,
heroTag: heroTags.first,
isImage: isImage,
disableZoomIn: disableZoomIn,
onTap: () {
if (!isImage) {
return;
}
if (!disableZoomIn) {
context.pushTransparentRoute(
CloudFileLightbox(item: files.first, heroTag: heroTags.first),
rootNavigator: true,
);
}
},
),
);
return Container(
padding: padding,
constraints: BoxConstraints(
maxHeight: disableConstraint ? double.infinity : maxHeight,
minWidth: minWidth ?? 0,
maxWidth: files.length == 1 ? maxWidth : double.infinity,
),
height: isAudio ? 120 : null,
child:
isAudio
? widgetItem
: IntrinsicWidth(child: IntrinsicHeight(child: widgetItem)),
);
}
final allImages =
!files.any(
(e) => e.mimeType == null || !e.mimeType!.startsWith('image'),
);
if (allImages) {
return ConstrainedBox(
constraints: BoxConstraints(maxHeight: maxHeight, minWidth: maxWidth),
child: AspectRatio(
aspectRatio: calculateAspectRatio(),
child: Padding(
padding: padding ?? EdgeInsets.zero,
child: LayoutBuilder(
builder: (context, constraints) {
final availableWidth =
constraints.maxWidth.isFinite
? constraints.maxWidth
: MediaQuery.of(context).size.width;
final itemExtent = math.min(
math.min(availableWidth * 0.75, maxWidth * 0.75).toDouble(),
640.0,
);
return CarouselView(
itemSnapping: true,
itemExtent: itemExtent,
shape: RoundedRectangleBorder(
borderRadius: const BorderRadius.all(Radius.circular(16)),
),
children: [
for (var i = 0; i < files.length; i++)
Stack(
children: [
_CloudFileListEntry(
file: files[i],
heroTag: heroTags[i],
isImage:
files[i].mimeType?.startsWith('image') ?? false,
disableZoomIn: disableZoomIn,
),
Positioned(
bottom: 12,
left: 16,
child: Text('${i + 1}/${files.length}')
.textColor(Colors.white)
.textShadow(
color: Colors.black54,
offset: Offset(1, 1),
blurRadius: 3,
),
),
],
),
],
onTap: (i) {
if (!(files[i].mimeType?.startsWith('image') ?? false)) {
return;
}
if (!disableZoomIn) {
context.pushTransparentRoute(
CloudFileLightbox(item: files[i], heroTag: heroTags[i]),
rootNavigator: true,
);
}
},
);
},
),
),
),
);
}
return ConstrainedBox(
constraints: BoxConstraints(maxHeight: maxHeight, minWidth: maxWidth),
child: AspectRatio(
aspectRatio: calculateAspectRatio(),
child: ListView.separated(
scrollDirection: Axis.horizontal,
itemCount: files.length,
padding: padding,
itemBuilder: (context, index) {
return AspectRatio(
aspectRatio:
files[index].fileMeta?['ratio'] is num
? files[index].fileMeta!['ratio'].toDouble()
: 1.0,
child: Stack(
children: [
ClipRRect(
borderRadius: const BorderRadius.all(Radius.circular(16)),
child: _CloudFileListEntry(
file: files[index],
heroTag: heroTags[index],
isImage:
files[index].mimeType?.startsWith('image') ?? false,
disableZoomIn: disableZoomIn,
onTap: () {
if (!(files[index].mimeType?.startsWith('image') ??
false)) {
return;
}
if (!disableZoomIn) {
context.pushTransparentRoute(
CloudFileLightbox(
item: files[index],
heroTag: heroTags[index],
),
rootNavigator: true,
);
}
},
),
),
Positioned(
bottom: 12,
left: 16,
child: Text('${index + 1}/${files.length}')
.textColor(Colors.white)
.textShadow(
color: Colors.black54,
offset: Offset(1, 1),
blurRadius: 3,
),
),
],
),
);
},
separatorBuilder: (_, _) => const Gap(8),
),
),
);
}
}
class _CloudFileListEntry extends HookConsumerWidget {
final SnCloudFile file;
final String heroTag;
final bool isImage;
final bool disableZoomIn;
final VoidCallback? onTap;
const _CloudFileListEntry({
required this.file,
required this.heroTag,
required this.isImage,
required this.disableZoomIn,
this.onTap,
});
@override
Widget build(BuildContext context, WidgetRef ref) {
final dataSaving = ref.watch(
appSettingsNotifierProvider.select((s) => s.dataSavingMode),
);
final showMature = useState(false);
final showDataSaving = useState(!dataSaving);
final lockedByDS = dataSaving && !showDataSaving.value;
final lockedByMature = file.sensitiveMarks.isNotEmpty && !showMature.value;
final meta = file.fileMeta is Map ? file.fileMeta as Map : const {};
final fit = BoxFit.cover;
Widget bg = const SizedBox.shrink();
if (isImage) {
if (meta['blur'] is String) {
bg = BlurHash(hash: meta['blur'] as String);
} else if (!lockedByDS && !lockedByMature) {
bg = ImageFiltered(
imageFilter: ImageFilter.blur(sigmaX: 50, sigmaY: 50),
child: CloudFileWidget(
fit: BoxFit.cover,
item: file,
noBlurhash: true,
useInternalGate: false,
),
);
} else {
bg = const ColoredBox(color: Colors.black26);
}
}
final bool fullyUnlocked = !lockedByDS && !lockedByMature;
Widget fg =
fullyUnlocked
? (isImage
? CloudFileWidget(
item: file,
heroTag: heroTag,
noBlurhash: true,
fit: fit,
useInternalGate: false,
)
: CloudFileWidget(
item: file,
heroTag: heroTag,
fit: fit,
useInternalGate: false,
))
: IntrinsicWidth(
child: IntrinsicHeight(child: const SizedBox.shrink()),
);
Widget overlays;
if (lockedByDS) {
overlays = _DataSavingOverlay();
} else if (file.sensitiveMarks.isNotEmpty) {
overlays = _SensitiveOverlay(
file: file,
isRevealed: showMature.value,
onHide: () => showMature.value = false,
);
} else {
overlays = const SizedBox.shrink();
}
final content = Stack(
fit: StackFit.expand,
children: [if (isImage) Positioned.fill(child: bg), fg, overlays],
);
return InkWell(
borderRadius: const BorderRadius.all(Radius.circular(16)),
onTap: () {
if (lockedByDS) {
showDataSaving.value = true;
} else if (lockedByMature) {
showMature.value = true;
} else {
onTap?.call();
}
},
child: content,
);
}
}
class _SensitiveOverlay extends StatelessWidget {
final SnCloudFile file;
final VoidCallback? onHide;
final bool isRevealed;
const _SensitiveOverlay({
required this.file,
this.onHide,
this.isRevealed = false,
});
@override
Widget build(BuildContext context) {
if (isRevealed) {
return Positioned(
top: 3,
left: 4,
child: IconButton(
iconSize: 16,
constraints: const BoxConstraints(),
icon: const Icon(
Icons.visibility_off,
color: Colors.white,
shadows: [
Shadow(
color: Colors.black,
blurRadius: 5.0,
offset: Offset(1.0, 1.0),
),
],
),
tooltip: 'Blur content',
onPressed: onHide,
),
);
}
return BackdropFilter(
filter: ImageFilter.blur(sigmaX: 64, sigmaY: 64),
child: Container(
color: Colors.transparent,
child: Center(
child: _OverlayCard(
icon: Icons.warning,
title: file.sensitiveMarks
.map((e) => SensitiveCategory.values[e].i18nKey.tr())
.join(' · '),
subtitle: 'Sensitive Content',
hint: 'Tap to Reveal',
),
),
),
);
}
}
class _DataSavingOverlay extends StatelessWidget {
@override
Widget build(BuildContext context) {
return ColoredBox(
color: Colors.black38,
child: Center(
child: _OverlayCard(
icon: Symbols.image,
title: 'Data Saving Mode',
subtitle: '',
hint: 'Tap to Load',
),
),
);
}
}
class _OverlayCard extends StatelessWidget {
final IconData icon;
final String title;
final String subtitle;
final String hint;
const _OverlayCard({
required this.icon,
required this.title,
required this.subtitle,
required this.hint,
});
@override
Widget build(BuildContext context) {
return Container(
margin: const EdgeInsets.all(12),
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
decoration: BoxDecoration(
color: Colors.black54,
borderRadius: BorderRadius.circular(12),
),
constraints: const BoxConstraints(maxWidth: 280),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Icon(icon, color: Colors.white, size: 24),
const Gap(4),
Text(
title,
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.w600,
),
textAlign: TextAlign.center,
),
Text(
subtitle,
style: const TextStyle(color: Colors.white, fontSize: 13),
),
const Gap(4),
Text(hint, style: const TextStyle(color: Colors.white, fontSize: 11)),
],
),
);
}
}