void view_RequestDetails(IShowerView sender, RequestDirArgs args)
 {
     if (args.Path == null)
     {
         _view.SetDirDetails(null);
     }
     else
     {
         _view.SetDirDetails(_fsModel.GetDir(args.Path, true));
     }
 }
 void view_RequestDir(IShowerView sender, RequestDirArgs args)
 {
     _view.SetDirDescriptor(_fsModel.GetDir(args.Path, true));
 }