Solian/lib/widgets/attachments/attachment_list.dart
2024-05-26 00:11:00 +08:00

199 lines
6.1 KiB
Dart

import 'dart:ui';
import 'package:carousel_slider/carousel_slider.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:solian/models/attachment.dart';
import 'package:solian/widgets/attachments/attachment_item.dart';
import 'package:solian/providers/content/attachment.dart';
import 'package:solian/widgets/attachments/attachment_list_fullscreen.dart';
class AttachmentList extends StatefulWidget {
final String parentId;
final List<int> attachmentsId;
const AttachmentList(
{super.key, required this.parentId, required this.attachmentsId});
@override
State<AttachmentList> createState() => _AttachmentListState();
}
class _AttachmentListState extends State<AttachmentList> {
bool _isLoading = true;
bool _showMature = false;
double _aspectRatio = 1;
List<Attachment?> _attachmentsMeta = List.empty();
void getMetadataList() {
final AttachmentProvider provider = Get.find();
if (widget.attachmentsId.isEmpty) {
return;
} else {
_attachmentsMeta = List.filled(widget.attachmentsId.length, null);
}
int progress = 0;
for (var idx = 0; idx < widget.attachmentsId.length; idx++) {
provider.getMetadata(widget.attachmentsId[idx]).then((resp) {
progress++;
_attachmentsMeta[idx] = Attachment.fromJson(resp.body);
if (progress == widget.attachmentsId.length) {
setState(() {
calculateAspectRatio();
_isLoading = false;
});
}
});
}
}
void calculateAspectRatio() {
bool isConsistent = true;
double? consistentValue;
int portrait = 0, square = 0, landscape = 0;
for (var entry in _attachmentsMeta) {
if (entry!.metadata?['ratio'] != null) {
consistentValue ??= entry.metadata?['ratio'];
if (isConsistent && entry.metadata?['ratio'] != consistentValue) {
isConsistent = false;
}
if (entry.metadata!['ratio'] > 1) {
landscape++;
} else if (entry.metadata!['ratio'] == 1) {
square++;
} else {
portrait++;
}
}
}
if (isConsistent && consistentValue != null) {
_aspectRatio = consistentValue;
} else {
if (portrait > square && portrait > landscape) {
_aspectRatio = 9 / 16;
}
if (landscape > square && landscape > portrait) {
_aspectRatio = 16 / 9;
} else {
_aspectRatio = 1;
}
}
}
@override
void initState() {
super.initState();
getMetadataList();
}
@override
Widget build(BuildContext context) {
if (widget.attachmentsId.isEmpty) {
return Container();
}
if (_isLoading) {
return AspectRatio(
aspectRatio: _aspectRatio,
child: Container(
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.surfaceContainerHigh),
child: const Center(
child: CircularProgressIndicator(),
),
),
);
}
return CarouselSlider.builder(
options: CarouselOptions(
aspectRatio: _aspectRatio,
viewportFraction: 1,
enableInfiniteScroll: false,
),
itemCount: _attachmentsMeta.length,
itemBuilder: (context, idx, _) {
final element = _attachmentsMeta[idx];
return GestureDetector(
child: Container(
width: MediaQuery.of(context).size.width,
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.surfaceContainerHigh,
),
child: Stack(
fit: StackFit.expand,
children: [
AttachmentItem(
parentId: widget.parentId,
key: Key('a${element!.uuid}'),
item: element,
badge: _attachmentsMeta.length > 1
? '${idx + 1}/${_attachmentsMeta.length}'
: null,
showHideButton: !element.isMature || _showMature,
onHide: () {
setState(() => _showMature = false);
},
),
if (element.isMature && !_showMature)
BackdropFilter(
filter: ImageFilter.blur(sigmaX: 100, sigmaY: 100),
child: Container(
decoration: BoxDecoration(
color: Colors.black.withOpacity(0.5),
),
),
),
if (element.isMature && !_showMature)
Center(
child: Container(
constraints: const BoxConstraints(maxWidth: 280),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const Icon(Icons.visibility_off,
color: Colors.white, size: 32),
const SizedBox(height: 8),
Text(
'matureContent'.tr,
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 16),
),
Text(
'matureContentCaption'.tr,
style: const TextStyle(color: Colors.white),
textAlign: TextAlign.center,
),
],
),
),
),
],
),
),
onTap: () {
if (!_showMature && _attachmentsMeta.any((e) => e!.isMature)) {
setState(() => _showMature = true);
} else {
Navigator.of(context, rootNavigator: true).push(
MaterialPageRoute(
builder: (context) => AttachmentListFullScreen(
parentId: widget.parentId,
attachment: element,
),
),
);
}
},
);
},
);
}
}