Add smart_gaps inverse_outer command

Add a subcommand for `smart_gaps` that enables outer gaps only
on workspaces with exactly one visible child.
Also add documentation for `smart_gaps toggle`.

1 files changed, 7 insertions, 1 deletions

diff --git a/include/sway/config.h b/include/sway/config.h
index 46dd4ffe..660245c1 100644
--- a/include/sway/config.h
+++ b/include/sway/config.h
@@ -283,6 +283,12 @@ struct side_gaps {
         int left;
 };
 
+enum smart_gaps_mode {
+        SMART_GAPS_OFF,
+        SMART_GAPS_ON,
+        SMART_GAPS_INVERSE_OUTER,
+};
+
 /**
  * Stores configuration for a workspace, regardless of whether the workspace
  * exists.
@@ -512,7 +518,7 @@ struct sway_config {
         bool tiling_drag;
         int tiling_drag_threshold;
 
-        bool smart_gaps;
+        enum smart_gaps_mode smart_gaps;
         int gaps_inner;
         struct side_gaps gaps_outer;