Track displayed surface visibility for idle inhibition

compositor/src/state.rs

@@ -334,6 +334,7 @@ pub struct Ferese {
     output_identity_ids: HashMap<String, OutputId>,
     pub(crate) windows: WindowRegistry<Window>,
     pub(crate) render: crate::render::RenderResources,
+    pub(crate) display_presentation: crate::display_presentation::DisplayPresentation,
     pub(crate) nested_backend: Option<NestedBackend>,
     pub(crate) wallpaper: WallpaperState,
     window_stack: WindowStack,
@@ -561,6 +562,7 @@ impl Ferese {
             output_identity_ids: HashMap::new(),
             windows: WindowRegistry::default(),
             render: Default::default(),
+            display_presentation: Default::default(),
             nested_backend: None,
             wallpaper: WallpaperState::with_wakeup(config.wallpaper, Some(event_loop.get_signal())),
             window_stack: WindowStack::default(),