public void RemoveTracks()
{
PlaylistCollection.DeleteTracksByIndices(selectedIndices.ToArray(), TracklistGUID);
for (int i = selectedIndices.Count - 1; i >= 0; i--)
{
soundtracks.RemoveAt(selectedIndices[i]);
}
Playlist pl = PlaylistCollection.GetPlaylist(TracklistGUID);
UpdatePlaylistEventArgs e = new UpdatePlaylistEventArgs(pl, PlayingTrack);
PlaylistIsUpdatedEvent?.Invoke(e);
}
void IDropTarget.Drop(IDropInfo dropInfo)
{
DataObject dataObject = dropInfo.Data as DataObject;
if (dataObject != null && dataObject.ContainsFileDropList())
{
IEnumerable <string> dropList = dataObject.GetFileDropList().Cast <string>();
List <TrackInfo> tlist = new List <TrackInfo>();
foreach (string filePath in dropList)
{
if (!MPLiteConstant.validFileType.Contains(Path.GetExtension(filePath)))
{
continue;
}
try
{
TrackInfo track = TrackInfo.ParseSource(filePath);
tlist.Add(track);
Soundtracks.Add(track);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
if (tlist.Count != 0)
{
Playlist pl = PlaylistCollection.UpdatePlaylist(tlist, TracklistName);
UpdatePlaylistEventArgs e = new UpdatePlaylistEventArgs(pl, PlayingTrack);
PlaylistIsUpdatedEvent?.Invoke(e);
}
}
else
{
// workaround: There is a bug that user can drag item from the gap between two items.
// It triggers DragEvent without SelectionChangeEvent. So that `selectedIndices` will be empty.
if (selectedIndices.Count == 0)
{
return;
}
// Reorder tracks
List <TrackInfo> tracks;
if ((dropInfo.Data as List <TrackInfo>) == null)
{
// Single file is dropped
tracks = new List <TrackInfo>();
tracks.Add(dropInfo.Data as TrackInfo);
}
else
{
// Multiple files is dropped
tracks = dropInfo.Data as List <TrackInfo>;
}
Playlist pl = PlaylistCollection.ReorderTracks(TracklistGUID, SelectedIndices, dropInfo.InsertIndex);
if (pl == null)
{
return;
}
UpdateSoundtracks(pl.Soundtracks);
UpdatePlaylistEventArgs e = new UpdatePlaylistEventArgs(pl, PlayingTrack);
PlaylistIsUpdatedEvent?.Invoke(e);
// reset PlayStatus
if (PlayingTrack != null)
{
TrackInfo track = soundtracks.FirstOrDefault(x => x.GUID == PlayingTrack.GUID);
if (track != null)
{
track.TrackStatus = PlayingTrack.TrackStatus;
}
}
}
}
