1 files changed, 7 insertions, 8 deletions

diff --git a/sway/tree/container.c b/sway/tree/container.c
index 67fac5ee..ebf9f98e 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -381,13 +381,13 @@ void container_map(swayc_t *container, void (*f)(swayc_t *view, void *data), voi
         }
 }
 
-/**
- * Get a list of containers that are descendents of the container in rendering
- * order
- */
-list_t *container_list_children(swayc_t *con) {
-        list_t *list = create_list();
+void container_for_each_bfs(swayc_t *con, void (*f)(swayc_t *con, void *data),
+                void *data) {
         list_t *queue = create_list();
+        if (queue == NULL) {
+                wlr_log(L_ERROR, "could not allocate list");
+                return;
+        }
 
         list_add(queue, con);
 
@@ -395,11 +395,10 @@ list_t *container_list_children(swayc_t *con) {
         while (queue->length) {
                 current = queue->items[0];
                 list_del(queue, 0);
-                list_add(list, current);
+                f(current, data);
                 // TODO floating containers
                 list_cat(queue, current->children);
         }
 
         list_free(queue);
-        return list;
 }