fluffychat/lib/widgets/event_content/audio_player.dart

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import 'dart:async';
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import 'dart:io';
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import 'package:audioplayers/audioplayers.dart';
import 'package:matrix/matrix.dart';
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import 'package:fluffychat/utils/sentry_controller.dart';
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import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:flutter_gen/gen_l10n/l10n.dart';
import '../../utils/matrix_sdk_extensions.dart/event_extension.dart';
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class AudioPlayerWidget extends StatefulWidget {
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final Color color;
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final Event event;
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static String currentId;
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const AudioPlayerWidget(this.event, {this.color = Colors.black, Key key})
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: super(key: key);
@override
_AudioPlayerState createState() => _AudioPlayerState();
}
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enum AudioPlayerStatus { notDownloaded, downloading, downloaded }
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class _AudioPlayerState extends State<AudioPlayerWidget> {
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AudioPlayerStatus status = AudioPlayerStatus.notDownloaded;
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final AudioPlayer audioPlayer = AudioPlayer();
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StreamSubscription onAudioPositionChanged;
StreamSubscription onDurationChanged;
StreamSubscription onPlayerStateChanged;
StreamSubscription onPlayerError;
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String statusText = '00:00';
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double currentPosition = 0;
double maxPosition = 0;
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File audioFile;
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@override
void dispose() {
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if (audioPlayer.state == PlayerState.PLAYING) {
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audioPlayer.stop();
}
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onAudioPositionChanged?.cancel();
onDurationChanged?.cancel();
onPlayerStateChanged?.cancel();
onPlayerError?.cancel();
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super.dispose();
}
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Future<void> _downloadAction() async {
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if (status != AudioPlayerStatus.notDownloaded) return;
setState(() => status = AudioPlayerStatus.downloading);
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try {
final matrixFile =
await widget.event.downloadAndDecryptAttachmentCached();
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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);
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setState(() {
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audioFile = file;
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status = AudioPlayerStatus.downloaded;
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});
_playAction();
} catch (e, s) {
Logs().v('Could not download audio file', e, s);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
content: Text(e.toLocalizedString(context)),
),
);
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}
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}
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void _playAction() async {
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if (AudioPlayerWidget.currentId != widget.event.eventId) {
if (AudioPlayerWidget.currentId != null) {
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if (audioPlayer.state != PlayerState.STOPPED) {
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await audioPlayer.stop();
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setState(() => null);
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}
}
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AudioPlayerWidget.currentId = widget.event.eventId;
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}
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switch (audioPlayer.state) {
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case PlayerState.PLAYING:
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await audioPlayer.pause();
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break;
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case PlayerState.PAUSED:
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await audioPlayer.resume();
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break;
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case PlayerState.STOPPED:
default:
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onAudioPositionChanged ??=
audioPlayer.onAudioPositionChanged.listen((state) {
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setState(() {
statusText =
'${state.inMinutes.toString().padLeft(2, '0')}:${(state.inSeconds % 60).toString().padLeft(2, '0')}';
currentPosition = state.inMilliseconds.toDouble();
});
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});
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onDurationChanged ??= audioPlayer.onDurationChanged.listen((max) =>
setState(() => maxPosition = max.inMilliseconds.toDouble()));
onPlayerStateChanged ??= audioPlayer.onPlayerStateChanged
.listen((_) => setState(() => null));
onPlayerError ??= audioPlayer.onPlayerError.listen((e) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
content: Text(L10n.of(context).oopsSomethingWentWrong),
),
);
SentryController.captureException(e, StackTrace.current);
});
await audioPlayer.play(audioFile.path);
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break;
}
}
@override
Widget build(BuildContext context) {
return Row(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Container(
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width: 30,
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child: status == AudioPlayerStatus.downloading
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? CircularProgressIndicator(strokeWidth: 2)
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: IconButton(
icon: Icon(
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audioPlayer.state == PlayerState.PLAYING
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? Icons.pause_outlined
: Icons.play_arrow_outlined,
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color: widget.color,
),
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tooltip: audioPlayer.state == PlayerState.PLAYING
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? L10n.of(context).audioPlayerPause
: L10n.of(context).audioPlayerPlay,
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onPressed: () {
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if (status == AudioPlayerStatus.downloaded) {
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_playAction();
} else {
_downloadAction();
}
},
),
),
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Expanded(
child: Slider(
activeColor: Theme.of(context).colorScheme.secondaryVariant,
inactiveColor: widget.color.withAlpha(64),
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value: currentPosition,
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onChanged: (double position) =>
audioPlayer.seek(Duration(milliseconds: position.toInt())),
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max: status == AudioPlayerStatus.downloaded ? maxPosition : 0,
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min: 0,
),
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),
Text(
statusText,
style: TextStyle(
color: widget.color,
),
),
SizedBox(width: 8),
IconButton(
icon: Icon(
Icons.download_outlined,
color: widget.color,
),
onPressed: () => widget.event.saveFile(context),
),
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],
);
}
}