xdg_shell: Extract struct for popup descriptor

include/sway/tree/view.h

@@ -177,6 +177,11 @@ struct sway_xwayland_unmanaged {
 };
 #endif
 
+struct sway_popup_desc {
+	struct wlr_scene_node *relative;
+	struct sway_view *view;
+};
+
 struct sway_xdg_popup {
 	struct sway_view *view;
 
@@ -184,6 +189,8 @@ struct sway_xdg_popup {
 	struct wlr_scene_tree *xdg_surface_tree;
 	struct wlr_xdg_popup *wlr_xdg_popup;
 
+	struct sway_popup_desc desc;
+
 	struct wl_listener surface_commit;
 	struct wl_listener new_popup;
 	struct wl_listener destroy;

sway/desktop/transaction.c

@@ -609,17 +609,15 @@ static void arrange_output(struct sway_output *output, int width, int height) {
 void arrange_popups(struct wlr_scene_tree *popups) {
 	struct wlr_scene_node *node;
 	wl_list_for_each(node, &popups->children, link) {
-		struct sway_xdg_popup *popup = scene_descriptor_try_get(node,
+		struct sway_popup_desc *popup = scene_descriptor_try_get(node,
 			SWAY_SCENE_DESC_POPUP);
 
 		// the popup layer may have popups from layer_shell surfaces, in this
 		// case those don't have a scene descriptor, so lets skip those here.
 		if (popup) {
-			struct wlr_scene_tree *tree = popup->view->content_tree;
-
 			int lx, ly;
-			wlr_scene_node_coords(&tree->node, &lx, &ly);
-			wlr_scene_node_set_position(&popup->scene_tree->node, lx, ly);
+			wlr_scene_node_coords(popup->relative, &lx, &ly);
+			wlr_scene_node_set_position(node, lx, ly);
 		}
 	}
 }

sway/desktop/xdg_shell.c

@@ -97,8 +97,11 @@ static struct sway_xdg_popup *popup_create(struct wlr_xdg_popup *wlr_popup,
 		return NULL;
 	}
 
+	popup->desc.relative = &view->content_tree->node;
+	popup->desc.view = view;
+
 	if (!scene_descriptor_assign(&popup->scene_tree->node,
-			SWAY_SCENE_DESC_POPUP, popup)) {
+			SWAY_SCENE_DESC_POPUP, &popup->desc)) {
 		sway_log(SWAY_ERROR, "Failed to allocate a popup scene descriptor");
 		wlr_scene_node_destroy(&popup->scene_tree->node);
 		free(popup);

sway/input/cursor.c

@@ -90,7 +90,7 @@ struct sway_node *node_at_coords(
 			}
 
 			if (!con) {
-				struct sway_xdg_popup *popup =
+				struct sway_popup_desc *popup =
 					scene_descriptor_try_get(current, SWAY_SCENE_DESC_POPUP);
 				if (popup) {
 					con = popup->view->container;