Use keyboard_state.focused_surface directly

include/sway/input/seat.h

@@ -192,8 +192,6 @@ void seat_set_exclusive_client(struct sway_seat *seat,
 
 struct sway_node *seat_get_focus(struct sway_seat *seat);
 
-struct wlr_surface *seat_get_focused_surface(struct sway_seat *seat);
-
 struct sway_workspace *seat_get_focused_workspace(struct sway_seat *seat);
 
 // If a scratchpad container is fullscreen global, this can be used to try to

sway/input/cursor.c

@@ -1372,7 +1372,7 @@ void handle_pointer_constraint(struct wl_listener *listener, void *data) {
 	sway_constraint->destroy.notify = handle_constraint_destroy;
 	wl_signal_add(&constraint->events.destroy, &sway_constraint->destroy);
 
-	struct wlr_surface *surface = seat_get_focused_surface(seat);
+	struct wlr_surface *surface = seat->wlr_seat->keyboard_state.focused_surface;
 	if (surface && surface == constraint->surface) {
 		sway_cursor_constrain(seat->cursor, constraint);
 	}

sway/input/seat.c

@@ -1462,17 +1462,6 @@ struct sway_node *seat_get_focus(struct sway_seat *seat) {
 	return current->node;
 }
 
-struct wlr_surface *seat_get_focused_surface(struct sway_seat *seat) {
-	struct sway_node *focus = seat_get_focus(seat);
-	if (focus && node_is_view(focus)) {
-		return focus->sway_container->view->surface;
-	}
-	struct wlr_layer_surface_v1 *layer = seat->focused_layer;
-	if (layer && layer->surface)
-		return layer->surface;
-	return NULL;
-}
-
 struct sway_workspace *seat_get_focused_workspace(struct sway_seat *seat) {
 	struct sway_node *focus = seat_get_focus_inactive(seat, &root->node);
 	if (!focus) {