Fix crash when adding output

1 files changed, 6 insertions, 0 deletions

diff --git a/include/sway/tree/container.h b/include/sway/tree/container.h
index e0cda17c..cd886cd0 100644
--- a/include/sway/tree/container.h
+++ b/include/sway/tree/container.h
@@ -351,6 +351,12 @@ bool container_is_floating_or_child(struct sway_container *container);
  */
 bool container_is_fullscreen_or_child(struct sway_container *container);
 
+/**
+ * Return the output which will be used for scale purposes.
+ * This is the most recently entered output.
+ */
+struct sway_output *container_get_effective_output(struct sway_container *con);
+
 void container_discover_outputs(struct sway_container *con);
 
 #endif