/// <summary>
/// 更改音乐播放状态
/// </summary>
/// <param name="musicViewModel"></param>
/// <param name="tb"></param>
private void ChangeMusicPlayState(QMInfoViewModel musicViewModel, TextBlock tb)
{
if (musicViewModel != null)
{
_nextPlayingTbObject = new KeyValuePair <string, TextBlock>(musicViewModel.Id, tb);
var isToPlay = true;
if (tb != null)
{
isToPlay = !tb.Text.Equals("\ue69d");
}
Task.Factory.StartNew(() =>
{
var htmlWeb = new HtmlWeb()
{
BrowserTimeout = TimeSpan.FromSeconds(10)
};
var doc = htmlWeb.Load(musicViewModel.SourcePath);
var photoUrl = doc.DocumentNode.SelectNodes("//img[@class='data__photo']")?.FirstOrDefault()?.Attributes["src"].Value?.ToHttpUrl();
var musicInfo = new QMPlayInfoModel()
{
Id = musicViewModel.Id,
Name = musicViewModel.Name,
SingerName = musicViewModel.SingerName,
TimeDuration = musicViewModel.TimeDuration,
Uri = new Uri($"http://thirdparty.gtimg.com/C100{musicViewModel.Id}.m4a?fromtag=38", UriKind.Absolute),
PhotoUri = photoUrl == null ? null : new Uri(photoUrl)
};
MusicPlayStateChangedUtil.InvokeFromQM(musicInfo, isToPlay);
});
}
}
/// <summary>
/// 歌曲播放失败
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MediaPlayer_MediaFailed(object sender, ExceptionEventArgs e)
{
_isOpenFailedOfCurrentPlayingMusic = true;
//为了同步播放按钮的状态
if (_musicSourceType == MusicSourceType.JM)
{
MusicPlayStateChangedUtil.InvokeFromJM(null, false, false);
}
else
{
MusicPlayStateChangedUtil.InvokeFromQM(null, false, false);
}
JMMessageBox.Show("歌曲失效", "因歌曲文件失效导致播放失败，请欣赏其他歌曲", JMMessageBoxButtonType.OK, JMMessageBoxIconType.Error);
}
private void MediaPlayer_MediaOpened(object sender, EventArgs e)
{
if (_musicSourceType == MusicSourceType.JM)
{
MusicPlayStateChangedUtil.InvokeFromJM(null, true, false);
}
else
{
MusicPlayStateChangedUtil.InvokeFromQM(null, true, false);
}
MusicProgressSlider.Maximum = _mediaPlayer.NaturalDuration.TimeSpan.TotalSeconds;
SliderVolume.Maximum = _mediaPlayer.Volume;
_isOpenFailedOfCurrentPlayingMusic = false;
}
/// <summary>
/// 播放按钮点击事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnPlay_Click(object sender, RoutedEventArgs e)
{
if (_musicSourceType.Equals(MusicSourceType.JM))
{
if (_mediaPlayer.Source == null)
{
PlayNewMusic(_defaultMusicUri);
_musicPlayerMenuViewModel.MusicName = "好想再爱你";
_musicPlayerMenuViewModel.SingerName = "潘广益";
_musicPlayerMenuViewModel.PhotoUri = _defaultPhotoUri;
_musicSourceType = MusicSourceType.JM;
}
else
{
MusicPlayStateChangedUtil.InvokeFromJM(null, !_isPlaying, false);
}
}
else if (_musicSourceType == MusicSourceType.QM)
{
MusicPlayStateChangedUtil.InvokeFromQM(null, !_isPlaying, false);
}
}