open method

@override Future<void> open({ required String path, required String audioType, String? package, bool autoStart = false, double volume = 1, double? seek, double? playSpeed, Map? networkHeaders, })

Implementation

@override
Future<void> open({
  required String path,
  required String audioType,
  String? package,
  bool autoStart = false,
  double volume = 1,
  double? seek,
  double? playSpeed,
  Map? networkHeaders,
}) async {
  stop();
  _durationMs = null;
  _position = null;
  final element = web.HTMLAudioElement()
    ..src = findAssetPath(path, audioType, package: package);
  _audioElement = element;

  // HTMLAudioElement cannot take networkHeaders

  _onEndedListener = ((web.Event event) {
    channel.invokeMethod(WebPlayer.methodFinished, true);
  }).toJS;
  element.addEventListener('ended', _onEndedListener);

  _onCanPlayListener = ((web.Event event) {
    if (autoStart) {
      play();
    }

    this.volume = volume;
    final durationMs = (element.duration) * 1000;

    if (durationMs != _durationMs) {
      _durationMs = durationMs;
      channel.invokeMethod(
          WebPlayer.methodCurrent, {'totalDurationMs': durationMs});
    }

    if (seek != null) {
      this.seek(to: seek);
    }

    if (playSpeed != null) {
      this.playSpeed = playSpeed;
    }

    // single event
    if (_onCanPlayListener != null) {
      element.removeEventListener('canplay', _onCanPlayListener);
      _onCanPlayListener = null;
    }
  }).toJS;
  element.addEventListener('canplay', _onCanPlayListener);
}