aves/lib/widgets/viewer/visual/video.dart
2021-01-21 15:08:19 +09:00

110 lines
3.3 KiB
Dart

import 'dart:async';
import 'dart:ui';
import 'package:aves/model/entry.dart';
import 'package:aves/model/entry_images.dart';
import 'package:aves/model/settings/settings.dart';
import 'package:aves/widgets/collection/collection_page.dart';
import 'package:flutter/material.dart';
import 'package:flutter_ijkplayer/flutter_ijkplayer.dart';
class VideoView extends StatefulWidget {
final AvesEntry entry;
final IjkMediaController controller;
const VideoView({
Key key,
@required this.entry,
@required this.controller,
}) : super(key: key);
@override
State<StatefulWidget> createState() => _VideoViewState();
}
class _VideoViewState extends State<VideoView> {
final List<StreamSubscription> _subscriptions = [];
AvesEntry get entry => widget.entry;
IjkMediaController get controller => widget.controller;
@override
void initState() {
super.initState();
_registerWidget(widget);
}
@override
void didUpdateWidget(covariant VideoView oldWidget) {
super.didUpdateWidget(oldWidget);
_unregisterWidget(oldWidget);
_registerWidget(widget);
}
@override
void dispose() {
_unregisterWidget(widget);
super.dispose();
}
void _registerWidget(VideoView widget) {
_subscriptions.add(widget.controller.playFinishStream.listen(_onPlayFinish));
}
void _unregisterWidget(VideoView widget) {
_subscriptions
..forEach((sub) => sub.cancel())
..clear();
}
bool isPlayable(IjkStatus status) => controller != null && [IjkStatus.prepared, IjkStatus.playing, IjkStatus.pause, IjkStatus.complete].contains(status);
@override
Widget build(BuildContext context) {
if (controller == null) return SizedBox();
return StreamBuilder<IjkStatus>(
stream: widget.controller.ijkStatusStream,
builder: (context, snapshot) {
final status = snapshot.data;
return isPlayable(status)
? IjkPlayer(
mediaController: controller,
controllerWidgetBuilder: (controller) => SizedBox.shrink(),
statusWidgetBuilder: (context, controller, status) => SizedBox.shrink(),
textureBuilder: (context, controller, info) {
var id = controller.textureId;
var child = id != null
? Texture(
textureId: id,
)
: Container(
color: Colors.black,
);
final degree = entry.rotationDegrees ?? 0;
if (degree != 0) {
child = RotatedBox(
quarterTurns: degree ~/ 90,
child: child,
);
}
return Center(
child: AspectRatio(
aspectRatio: entry.displayAspectRatio,
child: child,
),
);
},
backgroundColor: Colors.transparent,
)
: Image(
image: entry.getBestThumbnail(settings.getTileExtent(CollectionPage.routeName)),
fit: BoxFit.contain,
);
});
}
void _onPlayFinish(IjkMediaController controller) => controller.seekTo(0);
}