1 files changed, 21 insertions, 0 deletions
diff --git a/src/window/mod.rs b/src/window/mod.rs
index 44d5359e..1cf576df 100644
--- a/src/window/mod.rs
+++ b/src/window/mod.rs
@@ -115,6 +115,21 @@ impl<'a> WindowRef<'a> {
             WindowRef::Mapped(mapped) => mapped.is_active_in_column(),
         }
     }
+
+    pub fn is_floating(self) -> bool {
+        match self {
+            // FIXME: This means you cannot set initial configure rules based on is-floating. I'm
+            // not sure there's a good way to support it, since this matcher makes a cycle with the
+            // open-floating rule.
+            //
+            // That said, I don't think there are a lot of useful initial configure properties you
+            // may want to set through an is-floating matcher? Like, if you're configuring a
+            // specific window to open as floating, you can also set those properties in that same
+            // window rule, rather than relying on a different is-floating rule.
+            WindowRef::Unmapped(_) => false,
+            WindowRef::Mapped(mapped) => mapped.is_floating(),
+        }
+    }
 }
 
 impl ResolvedWindowRules {
@@ -381,5 +396,11 @@ fn window_matches(window: WindowRef, role: &XdgToplevelSurfaceRoleAttributes, m:
         }
     }
 
+    if let Some(is_floating) = m.is_floating {
+        if window.is_floating() != is_floating {
+            return false;
+        }
+    }
+
     true
 }