sway

commit 09733e233feffe5ec088d10f4de03df8594ec68b
parent 9f985f1f1cabf65b1c8349d9320a3031f959ec5a
Author: Ryan Dwyer <ryandwyer1@gmail.com>
Date:   Sun, 16 Sep 2018 14:18:13 +1000

Fix crash when unmapping last child of a tabbed workspace

* Create layout T[view view]
* Move the cursor into the title bar area
* Close both views

Sway would crash because container_at_tabbed would attempt to divide by
zero when there are no children.

The children check isn't needed for the stacked function because it
doesn't divide anything by the number of children.

Fixes #2636.

Diffstat:
M
sway/tree/container.c
 | 
3
+++

1 file changed, 3 insertions(+), 0 deletions(-)
diff --git a/sway/tree/container.c b/sway/tree/container.c
@@ -202,6 +202,9 @@ static struct sway_container *container_at_tabbed(struct sway_node *parent,
 	}
 	struct sway_seat *seat = input_manager_current_seat(input_manager);
 	list_t *children = node_get_children(parent);
+	if (!children->length) {
+		return NULL;
+	}
 
 	// Tab titles
 	int title_height = container_titlebar_height();