Fix crash when flattening container after moving

container_flatten removes the container from the tree (via
container_replace) before destroying it. When destroying, the recent
changes to handle_seat_node_destroy incorrectly assumes that the
container has a parent.

This adds a check for destroying a container which is no longer in the
tree. If this is the case, focus does not need to be changed.

1 files changed, 5 insertions, 0 deletions

diff --git a/sway/input/seat.c b/sway/input/seat.c
index 415f85ac..675edb2d 100644
--- a/sway/input/seat.c
+++ b/sway/input/seat.c
@@ -157,6 +157,11 @@ static void handle_seat_node_destroy(struct wl_listener *listener, void *data) {
 
         seat_node_destroy(seat_node);
 
+        if (!parent) {
+                // Destroying a container that is no longer in the tree
+                return;
+        }
+
         // Find new focus_inactive (ie. sibling, or workspace if no siblings left)
         struct sway_node *next_focus = NULL;
         while (next_focus == NULL) {