474 lines
16 KiB
Dart
474 lines
16 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:extera_next/pages/chat/events/html_message.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_linkify/flutter_linkify.dart';
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import 'package:just_audio/just_audio.dart';
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import 'package:matrix/matrix.dart';
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import 'package:opus_caf_converter_dart/opus_caf_converter_dart.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:extera_next/config/app_config.dart';
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import 'package:extera_next/config/themes.dart';
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import 'package:extera_next/utils/error_reporter.dart';
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import 'package:extera_next/utils/file_description.dart';
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import 'package:extera_next/utils/localized_exception_extension.dart';
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import 'package:extera_next/utils/url_launcher.dart';
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import '../../../utils/matrix_sdk_extensions/event_extension.dart';
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class AudioPlayerWidget extends StatefulWidget {
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final Color color;
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final Color linkColor;
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final double fontSize;
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final Event event;
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static String? currentId;
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static const int wavesCount = 40;
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const AudioPlayerWidget(
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this.event, {
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required this.color,
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required this.linkColor,
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required this.fontSize,
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super.key,
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});
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@override
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AudioPlayerState createState() => AudioPlayerState();
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}
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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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AudioPlayer? audioPlayer;
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StreamSubscription? onAudioPositionChanged;
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StreamSubscription? onDurationChanged;
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StreamSubscription? onPlayerStateChanged;
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StreamSubscription? onPlayerError;
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String? statusText;
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double currentPosition = 0;
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double maxPosition = 1;
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MatrixFile? matrixFile;
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File? audioFile;
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@override
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void dispose() {
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if (audioPlayer?.playerState.playing == true) {
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audioPlayer?.stop();
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}
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onAudioPositionChanged?.cancel();
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onDurationChanged?.cancel();
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onPlayerStateChanged?.cancel();
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onPlayerError?.cancel();
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super.dispose();
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}
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void _startAction() {
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if (status == AudioPlayerStatus.downloaded) {
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_playAction();
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} else {
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_downloadAction();
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}
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}
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Future<void> _downloadAction() async {
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if (status != AudioPlayerStatus.notDownloaded) return;
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setState(() => status = AudioPlayerStatus.downloading);
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try {
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final matrixFile = await widget.event.downloadAndDecryptAttachment();
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File? file;
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if (!kIsWeb) {
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final tempDir = await getTemporaryDirectory();
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final fileName = Uri.encodeComponent(
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widget.event.attachmentOrThumbnailMxcUrl()!.pathSegments.last,
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);
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file = File('${tempDir.path}/${fileName}_${matrixFile.name}');
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await file.writeAsBytes(matrixFile.bytes);
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if (Platform.isIOS &&
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matrixFile.mimeType.toLowerCase() == 'audio/ogg') {
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Logs().v('Convert ogg audio file for iOS...');
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final convertedFile = File('${file.path}.caf');
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if (await convertedFile.exists() == false) {
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OpusCaf().convertOpusToCaf(file.path, convertedFile.path);
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}
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file = convertedFile;
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}
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}
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setState(() {
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audioFile = file;
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this.matrixFile = matrixFile;
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status = AudioPlayerStatus.downloaded;
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});
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_playAction();
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} catch (e, s) {
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Logs().v('Could not download audio file', e, s);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(e.toLocalizedString(context)),
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),
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);
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}
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}
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void _playAction() async {
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final audioPlayer = this.audioPlayer ??= AudioPlayer();
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if (AudioPlayerWidget.currentId != widget.event.eventId) {
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if (AudioPlayerWidget.currentId != null) {
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if (audioPlayer.playerState.playing) {
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await audioPlayer.stop();
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setState(() {});
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}
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}
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AudioPlayerWidget.currentId = widget.event.eventId;
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}
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if (audioPlayer.playerState.playing) {
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await audioPlayer.pause();
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return;
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} else if (audioPlayer.position != Duration.zero) {
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await audioPlayer.play();
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return;
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}
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onAudioPositionChanged ??= audioPlayer.positionStream.listen((state) {
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if (maxPosition <= 0) return;
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setState(() {
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statusText =
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'${state.inMinutes.toString().padLeft(2, '0')}:${(state.inSeconds % 60).toString().padLeft(2, '0')}';
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currentPosition = state.inMilliseconds.toDouble();
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});
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if (state.inMilliseconds.toDouble() == maxPosition) {
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audioPlayer.stop();
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audioPlayer.seek(null);
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}
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});
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onDurationChanged ??= audioPlayer.durationStream.listen((max) {
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if (max == null || max == Duration.zero) return;
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setState(() => maxPosition = max.inMilliseconds.toDouble());
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});
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onPlayerStateChanged ??=
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audioPlayer.playingStream.listen((_) => setState(() {}));
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final audioFile = this.audioFile;
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if (audioFile != null) {
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audioPlayer.setFilePath(audioFile.path);
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} else {
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await audioPlayer.setAudioSource(MatrixFileAudioSource(matrixFile!));
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}
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audioPlayer.play().onError(
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ErrorReporter(context, 'Unable to play audio message')
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.onErrorCallback,
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);
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}
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static const double buttonSize = 36;
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String? get _durationString {
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final durationInt = widget.event.content
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.tryGetMap<String, dynamic>('info')
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?.tryGet<int>('duration');
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if (durationInt == null) return null;
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final duration = Duration(milliseconds: durationInt);
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return '${duration.inMinutes.toString().padLeft(2, '0')}:${(duration.inSeconds % 60).toString().padLeft(2, '0')}';
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}
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List<int>? _getWaveform() {
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final eventWaveForm = widget.event.content
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.tryGetMap<String, dynamic>('org.matrix.msc1767.audio')
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?.tryGetList<int>('waveform');
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if (eventWaveForm == null || eventWaveForm.isEmpty) {
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return null;
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}
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while (eventWaveForm.length < AudioPlayerWidget.wavesCount) {
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for (var i = 0; i < eventWaveForm.length; i = i + 2) {
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eventWaveForm.insert(i, eventWaveForm[i]);
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}
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}
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var i = 0;
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final step = (eventWaveForm.length / AudioPlayerWidget.wavesCount).round();
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while (eventWaveForm.length > AudioPlayerWidget.wavesCount) {
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eventWaveForm.removeAt(i);
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i = (i + step) % AudioPlayerWidget.wavesCount;
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}
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return eventWaveForm.map((i) => i > 1024 ? 1024 : i).toList();
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}
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late final List<int>? _waveform;
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void _toggleSpeed() async {
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final audioPlayer = this.audioPlayer;
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if (audioPlayer == null) return;
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switch (audioPlayer.speed) {
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case 1.0:
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await audioPlayer.setSpeed(1.25);
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break;
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case 1.25:
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await audioPlayer.setSpeed(1.5);
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break;
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case 1.5:
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await audioPlayer.setSpeed(2.0);
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break;
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case 2.0:
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await audioPlayer.setSpeed(0.5);
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break;
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case 0.5:
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default:
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await audioPlayer.setSpeed(1.0);
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break;
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}
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setState(() {});
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}
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@override
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void initState() {
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super.initState();
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_waveform = _getWaveform();
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final waveform = _waveform;
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final statusText = this.statusText ??= _durationString ?? '00:00';
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final audioPlayer = this.audioPlayer;
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final textColor = widget.color;
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final linkColor = widget.linkColor;
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final fileDescription = widget.event.fileDescription;
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final wavePosition =
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(currentPosition / maxPosition) * AudioPlayerWidget.wavesCount;
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return Padding(
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padding: const EdgeInsets.all(12.0),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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ConstrainedBox(
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constraints:
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const BoxConstraints(maxWidth: FluffyThemes.columnWidth),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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SizedBox(
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width: buttonSize,
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height: buttonSize,
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child: status == AudioPlayerStatus.downloading
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? CircularProgressIndicator(
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strokeWidth: 2,
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color: widget.color,
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)
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: InkWell(
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borderRadius: BorderRadius.circular(64),
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onLongPress: () => widget.event.saveFile(context),
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onTap: _startAction,
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child: Material(
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color: widget.color.withAlpha(64),
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borderRadius: BorderRadius.circular(64),
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child: Icon(
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audioPlayer?.playerState.playing == true
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? Icons.pause_outlined
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: Icons.play_arrow_outlined,
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color: widget.color,
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),
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),
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),
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),
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const SizedBox(width: 8),
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Expanded(
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child: Stack(
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children: [
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if (waveform != null)
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16.0),
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child: Row(
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children: [
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for (var i = 0;
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i < AudioPlayerWidget.wavesCount;
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i++)
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Expanded(
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child: Container(
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height: 32,
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alignment: Alignment.center,
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child: Container(
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margin: const EdgeInsets.symmetric(
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horizontal: 1,
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),
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decoration: BoxDecoration(
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color: i < wavePosition
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? widget.color
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: widget.color.withAlpha(128),
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borderRadius: BorderRadius.circular(64),
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),
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height: 32 * (waveform[i] / 1024),
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),
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),
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),
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],
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),
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),
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SizedBox(
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height: 32,
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child: Slider(
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thumbColor: widget.event.senderId ==
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widget.event.room.client.userID
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? theme.colorScheme.onPrimary
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: theme.colorScheme.primary,
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activeColor: waveform == null
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? widget.color
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: Colors.transparent,
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inactiveColor: waveform == null
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? widget.color.withAlpha(128)
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: Colors.transparent,
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max: maxPosition,
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value: currentPosition,
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onChanged: (position) => audioPlayer == null
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? _startAction()
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: audioPlayer.seek(
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Duration(milliseconds: position.round()),
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),
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),
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),
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],
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),
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),
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const SizedBox(width: 8),
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SizedBox(
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width: 36,
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child: Text(
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statusText,
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style: TextStyle(
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color: widget.color,
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fontSize: 12,
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),
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),
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),
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const SizedBox(width: 8),
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AnimatedCrossFade(
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firstChild: Padding(
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padding: const EdgeInsets.only(right: 8.0),
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child: Icon(
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Icons.mic_none_outlined,
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color: widget.color,
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),
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),
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secondChild: Material(
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color: widget.color.withAlpha(64),
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borderRadius: BorderRadius.circular(AppConfig.borderRadius),
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child: InkWell(
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borderRadius:
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BorderRadius.circular(AppConfig.borderRadius),
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onTap: _toggleSpeed,
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child: SizedBox(
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width: 32,
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height: 20,
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child: Center(
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child: Text(
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'${audioPlayer?.speed.toString()}x',
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style: TextStyle(
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color: widget.color,
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fontSize: 9,
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),
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),
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),
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),
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),
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),
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alignment: Alignment.center,
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crossFadeState: audioPlayer == null
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? CrossFadeState.showFirst
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: CrossFadeState.showSecond,
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duration: FluffyThemes.animationDuration,
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),
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],
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),
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),
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if (fileDescription != null && !widget.event.isRichFileDescription) ...[
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const SizedBox(height: 8),
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Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 8,
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),
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child: Linkify(
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text: fileDescription,
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textScaleFactor: MediaQuery.textScalerOf(context).scale(1),
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style: TextStyle(
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color: widget.color,
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fontSize: widget.fontSize,
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),
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options: const LinkifyOptions(humanize: false),
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linkStyle: TextStyle(
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color: widget.linkColor,
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fontSize: widget.fontSize,
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decoration: TextDecoration.underline,
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decorationColor: widget.linkColor,
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),
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onOpen: (url) => UrlLauncher(context, url.url).launchUrl(),
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),
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),
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],
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if (fileDescription != null && widget.event.isRichFileDescription) ...[
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const SizedBox(height: 8),
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Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 8,
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),
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child: HtmlMessage(
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html: fileDescription,
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textColor: textColor,
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room: widget.event.room,
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fontSize:
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AppConfig.fontSizeFactor * AppConfig.messageFontSize,
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linkStyle: TextStyle(
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color: linkColor,
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fontSize:
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AppConfig.fontSizeFactor * AppConfig.messageFontSize,
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decoration: TextDecoration.underline,
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decorationColor: linkColor,
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),
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onOpen: (url) => UrlLauncher(context, url.url).launchUrl(),
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),
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),
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],
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],
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),
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);
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}
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}
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/// To use a MatrixFile as an AudioSource for the just_audio package
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class MatrixFileAudioSource extends StreamAudioSource {
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final MatrixFile file;
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MatrixFileAudioSource(this.file);
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@override
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Future<StreamAudioResponse> request([int? start, int? end]) async {
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start ??= 0;
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end ??= file.bytes.length;
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return StreamAudioResponse(
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sourceLength: file.bytes.length,
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contentLength: end - start,
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offset: start,
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stream: Stream.value(file.bytes.sublist(start, end)),
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contentType: file.mimeType,
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);
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}
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}
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