Surface/lib/widgets/content/attachment_preview.dart
2025-06-04 01:59:17 +08:00

229 lines
8.8 KiB
Dart

import 'dart:io';
import 'package:cross_file/cross_file.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:gap/gap.dart';
import 'package:island/models/file.dart';
import 'package:island/widgets/content/cloud_files.dart';
import 'package:material_symbols_icons/symbols.dart';
import 'package:styled_widget/styled_widget.dart';
class AttachmentPreview extends StatelessWidget {
final UniversalFile item;
final double? progress;
final Function(int)? onMove;
final Function? onDelete;
final Function? onRequestUpload;
const AttachmentPreview({
super.key,
required this.item,
this.progress,
this.onRequestUpload,
this.onMove,
this.onDelete,
});
@override
Widget build(BuildContext context) {
return AspectRatio(
aspectRatio:
(item.isOnCloud ? (item.data.fileMeta?['ratio'] ?? 1) : 1).toDouble(),
child: ClipRRect(
borderRadius: BorderRadius.circular(8),
child: Stack(
fit: StackFit.expand,
children: [
Container(
color: Theme.of(context).colorScheme.surfaceContainerHigh,
child: Builder(
builder: (context) {
if (item.isOnCloud) {
return CloudFileWidget(item: item.data);
} else if (item.data is XFile) {
if (item.type == UniversalFileType.image) {
final file = item.data as XFile;
if (file.path.isEmpty) {
return FutureBuilder<Uint8List>(
future: file.readAsBytes(),
builder: (context, snapshot) {
if (snapshot.hasData) {
return Image.memory(snapshot.data!);
}
return const Center(
child: CircularProgressIndicator(),
);
},
);
}
return kIsWeb
? Image.network(file.path)
: Image.file(File(file.path));
} else {
return Center(
child: Text(
'Preview is not supported for ${item.type}',
textAlign: TextAlign.center,
),
);
}
} else if (item is List<int> || item is Uint8List) {
if (item.type == UniversalFileType.image) {
return Image.memory(item.data);
} else {
return Center(
child: Text(
'Preview is not supported for ${item.type}',
textAlign: TextAlign.center,
),
);
}
}
return Placeholder();
},
),
),
if (progress != null)
Positioned.fill(
child: Container(
color: Colors.black.withOpacity(0.3),
padding: EdgeInsets.symmetric(horizontal: 40, vertical: 16),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
if (progress != null)
Text(
'${progress!.toStringAsFixed(2)}%',
style: TextStyle(color: Colors.white),
)
else
Text(
'uploading'.tr(),
style: TextStyle(color: Colors.white),
),
Gap(6),
Center(child: LinearProgressIndicator(value: progress)),
],
),
),
),
Positioned(
left: 8,
top: 8,
child: ClipRRect(
borderRadius: BorderRadius.circular(8),
child: Container(
color: Colors.black.withOpacity(0.5),
child: Material(
color: Colors.transparent,
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
if (onDelete != null)
InkWell(
borderRadius: BorderRadius.circular(8),
child: const Icon(
Symbols.delete,
size: 14,
color: Colors.white,
).padding(horizontal: 8, vertical: 6),
onTap: () {
onDelete?.call();
},
),
if (onDelete != null && onMove != null)
SizedBox(
height: 26,
child: const VerticalDivider(
width: 0.3,
color: Colors.white,
thickness: 0.3,
),
).padding(horizontal: 2),
if (onMove != null)
InkWell(
borderRadius: BorderRadius.circular(8),
child: const Icon(
Symbols.keyboard_arrow_up,
size: 14,
color: Colors.white,
).padding(horizontal: 8, vertical: 6),
onTap: () {
onMove?.call(-1);
},
),
if (onMove != null)
InkWell(
borderRadius: BorderRadius.circular(8),
child: const Icon(
Symbols.keyboard_arrow_down,
size: 14,
color: Colors.white,
).padding(horizontal: 8, vertical: 6),
onTap: () {
onMove?.call(1);
},
),
],
),
),
),
),
),
if (onRequestUpload != null)
Positioned(
top: 8,
right: 8,
child: InkWell(
borderRadius: BorderRadius.circular(8),
onTap: () => onRequestUpload?.call(),
child: ClipRRect(
borderRadius: BorderRadius.circular(8),
child: Container(
color: Colors.black.withOpacity(0.5),
padding: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
child:
(item.isOnCloud)
? Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(
Symbols.cloud,
size: 16,
color: Colors.white,
),
const Gap(8),
Text(
'On-cloud',
style: TextStyle(color: Colors.white),
),
],
)
: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(
Symbols.cloud_off,
size: 16,
color: Colors.white,
),
const Gap(8),
Text(
'On-device',
style: TextStyle(color: Colors.white),
),
],
),
),
),
),
),
],
),
),
);
}
}