@Override
  public Object execute(ExecutionEvent event) throws ExecutionException {
    IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event);
    
    InputDialog dialog = new InputDialog(HandlerUtil.getActiveWorkbenchWindow(event).getShell(),
        Messages.getString("MenuRenamePlaylistHandler.Title"), Messages.getString("MenuRenamePlaylistHandler.Question"), Messages.getString("MenuCopyPlaylistHandler.DefaultValue"), new PlaylistNameValidator()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    int result = dialog.open();
    if (result == InputDialog.OK) {