Initial support for idle notify and idle ihibit

src/wayland/handlers/idle_inhibit.rs

@@ -0,0 +1,19 @@
+use smithay::{
+    delegate_idle_inhibit, reexports::wayland_server::protocol::wl_surface::WlSurface,
+    wayland::idle_inhibit::IdleInhibitHandler,
+};
+
+use crate::state::State;
+
+impl IdleInhibitHandler for State {
+    fn inhibit(&mut self, surface: WlSurface) {
+        self.common.idle_inhibiting_surfaces.insert(surface);
+        self.common.idle_notifier_state.set_is_inhibited(true);
+    }
+
+    fn uninhibit(&mut self, surface: WlSurface) {
+        self.common.idle_inhibiting_surfaces.remove(&surface);
+        self.common.refresh_idle_inhibit();
+    }
+}
+delegate_idle_inhibit!(State);