struct wlr_output *wlr_output = wlr_layer_surface->output;

	if (!wlr_output || !(layersurface->mon = wlr_output->data))

	if (!layersurface->mon)

	wlr_scene_node_reparent(layersurface->scene,
			layers[wlr_layer_surface->current.layer]);

	if (layers[wlr_layer_surface->current.layer] != layersurface->scene) {
		wlr_scene_node_reparent(layersurface->scene,
				layers[wlr_layer_surface->current.layer]);
		wl_list_remove(&layersurface->link);
		wl_list_insert(&layersurface->mon->layers[wlr_layer_surface->current.layer],
				&layersurface->link);
	}

	if (layers[wlr_layer_surface->current.layer] != layersurface->scene) {
		wl_list_remove(&layersurface->link);
		wl_list_insert(&layersurface->mon->layers[wlr_layer_surface->current.layer],
			&layersurface->link);
	}

	if (!wlr_layer_surface->output) {

	if (!wlr_layer_surface->output)

	}

		&layersurface->surface_commit, commitlayersurfacenotify);

			&layersurface->surface_commit, commitlayersurfacenotify);

	wlr_layer_surface->data = layersurface;

	wlr_layer_surface->data = layersurface;

	if (layersurface->layer_surface->output) {
		if ((layersurface->mon = layersurface->layer_surface->output->data))
			arrangelayers(layersurface->mon);
		layersurface->layer_surface->output = NULL;
	}

	if (layersurface->mon)
		arrangelayers(layersurface->mon);

	LayerSurface *layersurface = wl_container_of(listener, layersurface, map);
	layersurface->mon = layersurface->layer_surface->output->data;
	wlr_surface_send_enter(layersurface->layer_surface->surface,
		layersurface->mon->wlr_output);

	LayerSurface *l = wl_container_of(listener, l, map);
	wlr_surface_send_enter(l->layer_surface->surface, l->mon->wlr_output);