fluffychat/lib/components/audio_player.dart
2021-01-23 11:20:31 +01:00

193 lines
5.8 KiB
Dart

import 'dart:async';
import 'dart:typed_data';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:fluffychat/components/message_download_content.dart';
import 'package:flushbar/flushbar_helper.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_sound_lite/flutter_sound.dart';
import 'package:universal_html/prefer_universal/html.dart' as html;
import '../utils/ui_fake.dart' if (dart.library.html) 'dart:ui' as ui;
import 'matrix.dart';
import '../utils/event_extension.dart';
class AudioPlayer extends StatefulWidget {
final Color color;
final Event event;
static String currentId;
const AudioPlayer(this.event, {this.color = Colors.black, Key key})
: super(key: key);
@override
_AudioPlayerState createState() => _AudioPlayerState();
}
enum AudioPlayerStatus { NOT_DOWNLOADED, DOWNLOADING, DOWNLOADED }
class _AudioPlayerState extends State<AudioPlayer> {
AudioPlayerStatus status = AudioPlayerStatus.NOT_DOWNLOADED;
final FlutterSoundPlayer flutterSound = FlutterSoundPlayer();
StreamSubscription soundSubscription;
Uint8List audioFile;
String statusText = '00:00';
double currentPosition = 0;
double maxPosition = 0;
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');
}
}
@override
void dispose() {
if (flutterSound.isPlaying) {
flutterSound.stopPlayer();
}
if (flutterSound.isOpen()) {
flutterSound.closeAudioSession();
}
soundSubscription?.cancel();
super.dispose();
}
Future<void> _downloadAction() async {
if (status != AudioPlayerStatus.NOT_DOWNLOADED) return;
setState(() => status = AudioPlayerStatus.DOWNLOADING);
try {
final matrixFile =
await widget.event.downloadAndDecryptAttachmentCached();
setState(() {
audioFile = matrixFile.bytes;
status = AudioPlayerStatus.DOWNLOADED;
});
_playAction();
} catch (e, s) {
Logs().v('Could not download audio file', e, s);
await FlushbarHelper.createError(message: e.toLocalizedString(context))
.show(context);
}
}
void _playAction() async {
if (AudioPlayer.currentId != widget.event.eventId) {
if (AudioPlayer.currentId != null) {
if (!flutterSound.isStopped) {
await flutterSound.stopPlayer();
setState(() => null);
}
}
AudioPlayer.currentId = widget.event.eventId;
}
switch (flutterSound.playerState) {
case PlayerState.isPlaying:
await flutterSound.pausePlayer();
break;
case PlayerState.isPaused:
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) {
if (AudioPlayer.currentId != widget.event.eventId) {
soundSubscription?.cancel()?.then((f) => soundSubscription = null);
setState(() {
currentPosition = 0;
statusText = '00:00';
});
AudioPlayer.currentId = null;
} else if (e != null) {
var txt =
'${e.position.inMinutes.toString().padLeft(2, '0')}:${(e.position.inSeconds % 60).toString().padLeft(2, '0')}';
setState(() {
maxPosition = e.duration.inMilliseconds.toDouble();
currentPosition = e.position.inMilliseconds.toDouble();
statusText = txt;
});
}
});
break;
}
}
@override
Widget build(BuildContext context) {
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);
}
return Row(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Container(
width: 30,
child: status == AudioPlayerStatus.DOWNLOADING
? CircularProgressIndicator(strokeWidth: 2)
: IconButton(
icon: Icon(
flutterSound.isPlaying
? Icons.pause_outlined
: Icons.play_arrow_outlined,
color: widget.color,
),
onPressed: () {
if (status == AudioPlayerStatus.DOWNLOADED) {
_playAction();
} else {
_downloadAction();
}
},
),
),
Expanded(
child: Slider(
value: currentPosition,
onChanged: (double position) => flutterSound
.seekToPlayer(Duration(milliseconds: position.toInt())),
max: status == AudioPlayerStatus.DOWNLOADED ? maxPosition : 0,
min: 0,
),
),
Text(
statusText,
style: TextStyle(
color: widget.color,
),
),
],
);
}
}