public async Task RemovePlaylist(UserPlaylist playlist)
{
Playlists.Remove(playlist);
PlaylistRemoved?.Invoke(this, playlist);
using (
var command =
new SQLiteCommand(
"DELETE FROM `Playlists` WHERE Guid=@guid", _connection))
{
command.Parameters.AddGuid("@guid", playlist.Id);
await command.ExecuteNonQueryAsync();
}
using (
var command =
new SQLiteCommand(
"DELETE FROM `PlaylistTracks` WHERE PlaylistId=@guid", _connection))
{
command.Parameters.AddGuid("@guid", playlist.Id);
await command.ExecuteNonQueryAsync();
}
}
private void FileWatcherRenamed(object sender, RenamedEventArgs e)
{
Trace.WriteLine(Trace.kKinsky, "PlaylistWatcher.FileSystemWatcherRenamed: e.OldFullPath=" + e.OldFullPath + ", e.FullPath=" + e.FullPath);
// a file has been renamed - rename the corresponding entry
bool playlistRenamed = false;
lock (iLock)
{
if (iPlaylists.ContainsKey(e.OldFullPath))
{
iPlaylists.Remove(e.OldFullPath);
FileInfo i = new FileInfo(e.FullPath);
iPlaylists.Add(i.FullName, i.Name.Replace(i.Extension, ""));
playlistRenamed = true;
}
}
if (playlistRenamed)
{
PlaylistRemoved evRem = EventPlaylistRemoved;
if (evRem != null)
{
evRem(e.OldFullPath);
}
PlaylistAdded evAdd = EventPlaylistAdded;
if (evAdd != null)
{
evAdd(e.FullPath);
}
}
}
private void FileWatcherChanged(object sender, FileSystemEventArgs e)
{
if (e.ChangeType == WatcherChangeTypes.Deleted)
{
// the file has been removed - remove the corresponding entry
bool playlistRemoved = false;
lock (iLock)
{
if (iPlaylists.ContainsKey(e.FullPath))
{
iPlaylists.Remove(e.FullPath);
playlistRemoved = true;
}
}
// if the file was removed from the list, send event
PlaylistRemoved ev = EventPlaylistRemoved;
if (playlistRemoved && ev != null)
{
ev(e.FullPath);
}
}
else
{
// some unknown change has happened - rescan the save directory
lock (iLock)
{
Rescan();
}
// send the event
PlaylistsChanged ev = EventPlaylistsChanged;
if (ev != null)
{
ev();
}
}
}
internal virtual void OnPlaylistRemoved(PlaylistEventArgs e)
{
PlaylistRemoved.RaiseEvent(this, e);
}
