fluffychat/lib/widgets/event_content/audio_player.dart
2021-06-06 10:50:26 +02:00

184 lines
5.8 KiB
Dart

import 'dart:async';
import 'dart:io';
import 'package:audioplayers/audioplayers.dart';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:fluffychat/utils/platform_infos.dart';
import 'package:fluffychat/utils/sentry_controller.dart';
import 'package:fluffychat/widgets/event_content/message_download_content.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:path_provider/path_provider.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import '../../utils/matrix_sdk_extensions.dart/event_extension.dart';
class AudioPlayerWidget extends StatefulWidget {
final Color color;
final Event event;
static String currentId;
const AudioPlayerWidget(this.event, {this.color = Colors.black, Key key})
: super(key: key);
@override
_AudioPlayerState createState() => _AudioPlayerState();
}
enum AudioPlayerStatus { notDownloaded, downloading, downloaded }
class _AudioPlayerState extends State<AudioPlayerWidget> {
AudioPlayerStatus status = AudioPlayerStatus.notDownloaded;
final AudioPlayer audioPlayer = AudioPlayer();
StreamSubscription onAudioPositionChanged;
StreamSubscription onDurationChanged;
StreamSubscription onPlayerStateChanged;
StreamSubscription onPlayerError;
String statusText = '00:00';
double currentPosition = 0;
double maxPosition = 0;
File audioFile;
@override
void dispose() {
if (audioPlayer.state == PlayerState.PLAYING) {
audioPlayer.stop();
}
onAudioPositionChanged?.cancel();
onDurationChanged?.cancel();
onPlayerStateChanged?.cancel();
onPlayerError?.cancel();
super.dispose();
}
Future<void> _downloadAction() async {
if (status != AudioPlayerStatus.notDownloaded) return;
setState(() => status = AudioPlayerStatus.downloading);
try {
final matrixFile =
await widget.event.downloadAndDecryptAttachmentCached();
final tempDir = await getTemporaryDirectory();
final fileName = matrixFile.name.contains('.')
? matrixFile.name
: '${matrixFile.name}.mp3';
final file = File('${tempDir.path}/$fileName');
await file.writeAsBytes(matrixFile.bytes);
setState(() {
audioFile = file;
status = AudioPlayerStatus.downloaded;
});
_playAction();
} catch (e, s) {
Logs().v('Could not download audio file', e, s);
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(e.toLocalizedString(context)),
),
);
}
}
void _playAction() async {
if (AudioPlayerWidget.currentId != widget.event.eventId) {
if (AudioPlayerWidget.currentId != null) {
if (audioPlayer.state != PlayerState.STOPPED) {
await audioPlayer.stop();
setState(() => null);
}
}
AudioPlayerWidget.currentId = widget.event.eventId;
}
switch (audioPlayer.state) {
case PlayerState.PLAYING:
await audioPlayer.pause();
break;
case PlayerState.PAUSED:
await audioPlayer.resume();
break;
case PlayerState.STOPPED:
default:
onAudioPositionChanged ??=
audioPlayer.onAudioPositionChanged.listen((state) {
setState(() {
statusText =
'${state.inMinutes.toString().padLeft(2, '0')}:${(state.inSeconds % 60).toString().padLeft(2, '0')}';
currentPosition = state.inMilliseconds.toDouble();
});
});
onDurationChanged ??= audioPlayer.onDurationChanged.listen((max) =>
setState(() => maxPosition = max.inMilliseconds.toDouble()));
onPlayerStateChanged ??= audioPlayer.onPlayerStateChanged
.listen((_) => setState(() => null));
onPlayerError ??= audioPlayer.onPlayerError.listen((e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(L10n.of(context).oopsSomethingWentWrong),
),
);
SentryController.captureException(e, StackTrace.current);
});
await audioPlayer.play(audioFile.path);
break;
}
}
@override
Widget build(BuildContext context) {
if (PlatformInfos.isLinux || PlatformInfos.isWindows) {
return MessageDownloadContent(widget.event, widget.color);
}
return Row(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Container(
width: 30,
child: status == AudioPlayerStatus.downloading
? CircularProgressIndicator(strokeWidth: 2)
: IconButton(
icon: Icon(
audioPlayer.state == PlayerState.PLAYING
? Icons.pause_outlined
: Icons.play_arrow_outlined,
color: widget.color,
),
tooltip: audioPlayer.state == PlayerState.PLAYING
? L10n.of(context).audioPlayerPause
: L10n.of(context).audioPlayerPlay,
onPressed: () {
if (status == AudioPlayerStatus.downloaded) {
_playAction();
} else {
_downloadAction();
}
},
),
),
Expanded(
child: Slider(
activeColor: Theme.of(context).colorScheme.secondaryVariant,
inactiveColor: widget.color.withAlpha(64),
value: currentPosition,
onChanged: (double position) =>
audioPlayer.seek(Duration(milliseconds: position.toInt())),
max: status == AudioPlayerStatus.downloaded ? maxPosition : 0,
min: 0,
),
),
Text(
statusText,
style: TextStyle(
color: widget.color,
),
),
],
);
}
}