fluffychat/lib/views/widgets/audio_player.dart

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import 'dart:async';
import 'dart:typed_data';
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import 'package:adaptive_page_layout/adaptive_page_layout.dart';
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import 'package:famedlysdk/famedlysdk.dart';
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import 'package:fluffychat/views/widgets/message_download_content.dart';
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import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_sound_lite/flutter_sound.dart';
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import 'package:universal_html/prefer_universal/html.dart' as html;
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import 'package:flutter_gen/gen_l10n/l10n.dart';
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import '../../utils/ui_fake.dart' if (dart.library.html) 'dart:ui' as ui;
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import 'matrix.dart';
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import '../../utils/event_extension.dart';
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class AudioPlayer extends StatefulWidget {
final Color color;
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final Event event;
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static String currentId;
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const AudioPlayer(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<AudioPlayer> {
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AudioPlayerStatus status = AudioPlayerStatus.notDownloaded;
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final FlutterSoundPlayer flutterSound = FlutterSoundPlayer();
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StreamSubscription soundSubscription;
Uint8List audioFile;
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String statusText = '00:00';
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double currentPosition = 0;
double maxPosition = 0;
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String webSrcUrl;
@override
void initState() {
super.initState();
if (kIsWeb) {
ui.platformViewRegistry.registerViewFactory(
'web_audio_player',
(int viewId) => html.AudioElement()
..src = webSrcUrl
..autoplay = false
..controls = true
..style.border = 'none');
}
}
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@override
void dispose() {
if (flutterSound.isPlaying) {
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flutterSound.stopPlayer();
}
if (flutterSound.isOpen()) {
flutterSound.closeAudioSession();
}
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soundSubscription?.cancel();
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();
setState(() {
audioFile = matrixFile.bytes;
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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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AdaptivePageLayout.of(context).showSnackBar(
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 (AudioPlayer.currentId != widget.event.eventId) {
if (AudioPlayer.currentId != null) {
if (!flutterSound.isStopped) {
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await flutterSound.stopPlayer();
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setState(() => null);
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}
}
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AudioPlayer.currentId = widget.event.eventId;
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}
switch (flutterSound.playerState) {
case PlayerState.isPlaying:
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await flutterSound.pausePlayer();
break;
case PlayerState.isPaused:
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await flutterSound.resumePlayer();
break;
case PlayerState.isStopped:
default:
if (!flutterSound.isOpen()) {
await flutterSound.openAudioSession(
focus: AudioFocus.requestFocusAndStopOthers,
category: SessionCategory.playback);
}
await flutterSound.setSubscriptionDuration(Duration(milliseconds: 100));
await flutterSound.startPlayer(fromDataBuffer: audioFile);
soundSubscription ??= flutterSound.onProgress.listen((e) {
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if (AudioPlayer.currentId != widget.event.eventId) {
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soundSubscription?.cancel()?.then((f) => soundSubscription = null);
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setState(() {
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currentPosition = 0;
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statusText = '00:00';
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});
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AudioPlayer.currentId = null;
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} else if (e != null) {
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final txt =
'${e.position.inMinutes.toString().padLeft(2, '0')}:${(e.position.inSeconds % 60).toString().padLeft(2, '0')}';
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setState(() {
maxPosition = e.duration.inMilliseconds.toDouble();
currentPosition = e.position.inMilliseconds.toDouble();
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statusText = txt;
});
}
});
break;
}
}
@override
Widget build(BuildContext context) {
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if (kIsWeb) {
if (widget.event.content['url'] is String) {
webSrcUrl = Uri.parse(widget.event.content['url'])
.getDownloadLink(Matrix.of(context).client);
return Container(
height: 50,
width: 300,
child: HtmlElementView(viewType: 'web_audio_player'),
);
}
return MessageDownloadContent(widget.event, widget.color);
}
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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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flutterSound.isPlaying
? Icons.pause_outlined
: Icons.play_arrow_outlined,
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color: widget.color,
),
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tooltip: flutterSound.isPlaying
? 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(
value: currentPosition,
onChanged: (double position) => flutterSound
.seekToPlayer(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,
),
),
],
);
}
}