fix decorations on wayland backend

rootston/cursor.c

@@ -115,7 +115,7 @@ static void roots_cursor_update_position(struct roots_cursor *cursor,
 			seat_view_deco_leave(cursor->pointer_view);
 			cursor->pointer_view = NULL;
 		}
-		bool set_compositor_cursor = !view && cursor->cursor_client;
+		bool set_compositor_cursor = !view && !surface && cursor->cursor_client;
 		if (view && surface) {
 			struct wl_client *view_client =
 				wl_resource_get_client(view->wlr_surface->resource);
@@ -211,7 +211,7 @@ static void roots_cursor_press_button(struct roots_cursor *cursor,
 	struct roots_desktop *desktop = seat->input->server->desktop;
 	bool is_touch = device->type == WLR_INPUT_DEVICE_TOUCH;
 
-	struct wlr_surface *surface;
+	struct wlr_surface *surface = NULL;
 	double sx, sy;
 	struct roots_view *view =
 		desktop_view_at(desktop, lx, ly, &surface, &sx, &sy);

rootston/desktop.c

@@ -400,7 +400,8 @@ static bool view_at(struct roots_view *view, double lx, double ly,
 	if (view_get_deco_part(view, view_sx, view_sy)) {
 		*sx = view_sx;
 		*sy = view_sy;
-		return view;
+		*surface = NULL;
+		return true;
 	}
 
 	if (wlr_box_contains_point(&box, view_sx, view_sy) &&

rootston/seat.c

@@ -573,6 +573,10 @@ static void seat_view_destroy(struct roots_seat_view *seat_view) {
 		seat->cursor->mode = ROOTS_CURSOR_PASSTHROUGH;
 	}
 
+	if (seat_view == seat->cursor->pointer_view) {
+		seat->cursor->pointer_view = NULL;
+	}
+
 	wl_list_remove(&seat_view->view_destroy.link);
 	wl_list_remove(&seat_view->link);
 	free(seat_view);