Track displayed surface visibility for idle inhibition

compositor/src/state/layout.rs

@@ -44,8 +44,13 @@ impl Ferese {
                 geometry.settle_presentation();
             }
 
+            window.with_surfaces(|surface, _| {
+                self.display_presentation.remove_surface(&surface.into());
+            });
             self.space.unmap_elem(&window);
         }
+        self.refresh_idle_inhibition();
+
         changed
     }
 

compositor/src/state/outputs.rs

@@ -53,6 +53,9 @@ impl Ferese {
     }
 
     pub fn unregister_output(&mut self, output: &Output) {
+        self.display_presentation.remove_output(output);
+        self.refresh_idle_inhibition();
+
         let Some(output_id) = self.output_ids.remove(output) else {
             return;
         };