1 files changed, 10 insertions, 0 deletions

diff --git a/include/sway/tree/container.h b/include/sway/tree/container.h
index a69da9db..11780916 100644
--- a/include/sway/tree/container.h
+++ b/include/sway/tree/container.h
@@ -144,6 +144,10 @@ struct sway_container {
 
         bool destroying;
 
+        // If true, indicates that the container has pending state that differs from
+        // the current.
+        bool dirty;
+
         struct {
                 struct wl_signal destroy;
                 // Raised after the tree updates, but before arrange_windows
@@ -303,4 +307,10 @@ void container_get_box(struct sway_container *container, struct wlr_box *box);
 void container_floating_move_to(struct sway_container *con,
                 double lx, double ly);
 
+/**
+ * Mark a container as dirty if it isn't already. Dirty containers will be
+ * included in the next transaction then unmarked as dirty.
+ */
+void container_set_dirty(struct sway_container *container);
+
 #endif