public PlaylistVideoPageViewModel(string playlistId, Func <IDataSource> getDataSource, IConnectionListener connectionListener)
{
_connectionListener = connectionListener;
_getDataSource = getDataSource;
_videoViewModel = new VideoPageViewModel();
_playlistVideosViewModel = new PlaylistVideosViewModel(playlistId, getDataSource, connectionListener, PlaylistVideoItemClick);
LoadPlaylistVideos(playlistId);
}
protected void PlaylistVideoItemClick(NavigationObject navObject)
{
if (navObject == null)
{
return;
}
_playlistVideosViewModel.SetPlayingVideo(navObject.ViewModel);
VideoViewModel = new VideoPageViewModel(navObject.ViewModel.VideoId, _getDataSource, _connectionListener);
}
public void SkipPrevious()
{
var previous = _playlistVideosViewModel.GetPreviousVideo();
if (previous == null)
{
return;
}
_playlistVideosViewModel.SetPlayingVideo(previous);
VideoViewModel = new VideoPageViewModel(previous.VideoId, _getDataSource, _connectionListener);
}
public void SkipNext()
{
var next = _playlistVideosViewModel.GetNextVideo();
if (next == null)
{
return;
}
_playlistVideosViewModel.SetPlayingVideo(next);
VideoViewModel = new VideoPageViewModel(next.VideoId, _getDataSource, _connectionListener);
}
private void LoadPlaylistVideos(string playlistId)
{
LayoutHelper.InvokeFromUiThread(async() =>
{
await _playlistVideosViewModel.FirstLoad();
var firstVideo = _playlistVideosViewModel.Items.FirstOrDefault();
if (firstVideo == null)
{
return;
}
VideoViewModel = new VideoPageViewModel(firstVideo.VideoId, _getDataSource, _connectionListener);
var videoNode = firstVideo as VideoItemViewModel;
if (videoNode == null)
{
return;
}
videoNode.IsNowPlaying = true;
});
}
