@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) {