Implement idle-notify and idle-inhibit

Cargo.lock

@@ -2963,7 +2963,7 @@ checksum = "e6ecd384b10a64542d77071bd64bd7b231f4ed5940fba55e98c3de13824cf3d7"
 [[package]]
 name = "smithay"
 version = "0.3.0"
-source = "git+https://github.com/Smithay/smithay.git#070d29c01dd51175d17a16922ade85ab854b9e94"
+source = "git+https://github.com/Smithay/smithay.git#774e45a445dd595ea9d18b32ef1cad15ca0ef548"
 dependencies = [
  "appendlist",
  "bitflags 2.4.2",
@@ -3035,7 +3035,7 @@ dependencies = [
 [[package]]
 name = "smithay-drm-extras"
 version = "0.1.0"
-source = "git+https://github.com/Smithay/smithay.git#070d29c01dd51175d17a16922ade85ab854b9e94"
+source = "git+https://github.com/Smithay/smithay.git#774e45a445dd595ea9d18b32ef1cad15ca0ef548"
 dependencies = [
  "drm",
  "edid-rs",

src/handlers/compositor.rs

@@ -97,7 +97,11 @@ impl CompositorHandler for State {
             // This is a root surface commit. It might have mapped a previously-unmapped toplevel.
             if let Entry::Occupied(entry) = self.niri.unmapped_windows.entry(surface.clone()) {
                 let is_mapped =
-                    with_renderer_surface_state(surface, |state| state.buffer().is_some());
+                    with_renderer_surface_state(surface, |state| state.buffer().is_some())
+                        .unwrap_or_else(|| {
+                            error!("no renderer surface state even though we use commit handler");
+                            false
+                        });
 
                 if is_mapped {
                     // The toplevel got mapped.
@@ -140,7 +144,11 @@ impl CompositorHandler for State {
 
                 // This is a commit of a previously-mapped toplevel.
                 let is_mapped =
-                    with_renderer_surface_state(surface, |state| state.buffer().is_some());
+                    with_renderer_surface_state(surface, |state| state.buffer().is_some())
+                        .unwrap_or_else(|| {
+                            error!("no renderer surface state even though we use commit handler");
+                            false
+                        });
 
                 if !is_mapped {
                     // The toplevel got unmapped.

src/handlers/mod.rs

@@ -22,6 +22,8 @@ use smithay::reexports::wayland_server::Resource;
 use smithay::utils::{Logical, Rectangle, Size};
 use smithay::wayland::compositor::{send_surface_state, with_states};
 use smithay::wayland::dmabuf::{DmabufGlobal, DmabufHandler, DmabufState, ImportNotifier};
+use smithay::wayland::idle_inhibit::IdleInhibitHandler;
+use smithay::wayland::idle_notify::{IdleNotifierHandler, IdleNotifierState};
 use smithay::wayland::input_method::{InputMethodHandler, PopupSurface};
 use smithay::wayland::output::OutputHandler;
 use smithay::wayland::pointer_constraints::PointerConstraintsHandler;
@@ -42,10 +44,11 @@ use smithay::wayland::session_lock::{
 };
 use smithay::{
     delegate_cursor_shape, delegate_data_control, delegate_data_device, delegate_dmabuf,
-    delegate_input_method_manager, delegate_output, delegate_pointer_constraints,
-    delegate_pointer_gestures, delegate_presentation, delegate_primary_selection,
-    delegate_relative_pointer, delegate_seat, delegate_security_context, delegate_session_lock,
-    delegate_tablet_manager, delegate_text_input_manager, delegate_virtual_keyboard_manager,
+    delegate_idle_inhibit, delegate_idle_notify, delegate_input_method_manager, delegate_output,
+    delegate_pointer_constraints, delegate_pointer_gestures, delegate_presentation,
+    delegate_primary_selection, delegate_relative_pointer, delegate_seat,
+    delegate_security_context, delegate_session_lock, delegate_tablet_manager,
+    delegate_text_input_manager, delegate_virtual_keyboard_manager,
 };
 
 use crate::delegate_foreign_toplevel;
@@ -300,6 +303,24 @@ impl SecurityContextHandler for State {
 }
 delegate_security_context!(State);
 
+impl IdleNotifierHandler for State {
+    fn idle_notifier_state(&mut self) -> &mut IdleNotifierState<Self> {
+        &mut self.niri.idle_notifier_state
+    }
+}
+delegate_idle_notify!(State);
+
+impl IdleInhibitHandler for State {
+    fn inhibit(&mut self, surface: WlSurface) {
+        self.niri.idle_inhibiting_surfaces.insert(surface);
+    }
+
+    fn uninhibit(&mut self, surface: WlSurface) {
+        self.niri.idle_inhibiting_surfaces.remove(&surface);
+    }
+}
+delegate_idle_inhibit!(State);
+
 impl ForeignToplevelHandler for State {
     fn foreign_toplevel_manager_state(&mut self) -> &mut ForeignToplevelManagerState {
         &mut self.niri.foreign_toplevel_state

src/input.rs

@@ -49,9 +49,24 @@ impl State {
         // here.
         self.niri.layout.advance_animations(get_monotonic_time());
 
-        // Power on monitors if they were off.
-        if should_activate_monitors(&event) {
-            self.niri.activate_monitors(&mut self.backend);
+        if self.niri.monitors_active {
+            // Notify the idle-notifier of activity.
+            if should_notify_activity(&event) {
+                self.niri
+                    .idle_notifier_state
+                    .notify_activity(&self.niri.seat);
+            }
+        } else {
+            // Power on monitors if they were off.
+            if should_activate_monitors(&event) {
+                self.niri.activate_monitors(&mut self.backend);
+
+                // Notify the idle-notifier of activity only if we're also powering on the
+                // monitors.
+                self.niri
+                    .idle_notifier_state
+                    .notify_activity(&self.niri.seat);
+            }
         }
 
         let hide_hotkey_overlay =
@@ -1497,6 +1512,13 @@ fn should_hide_exit_confirm_dialog<I: InputBackend>(event: &InputEvent<I>) -> bo
     }
 }
 
+fn should_notify_activity<I: InputBackend>(event: &InputEvent<I>) -> bool {
+    match event {
+        InputEvent::DeviceAdded { .. } | InputEvent::DeviceRemoved { .. } => false,
+        _ => true,
+    }
+}
+
 fn allowed_when_locked(action: &Action) -> bool {
     matches!(
         action,

src/niri.rs

@@ -50,7 +50,7 @@ use smithay::reexports::wayland_server::backend::{
     ClientData, ClientId, DisconnectReason, GlobalId,
 };
 use smithay::reexports::wayland_server::protocol::wl_surface::WlSurface;
-use smithay::reexports::wayland_server::{Display, DisplayHandle};
+use smithay::reexports::wayland_server::{Display, DisplayHandle, Resource};
 use smithay::utils::{
     ClockSource, Logical, Monotonic, Physical, Point, Rectangle, Scale, Size, Transform,
     SERIAL_COUNTER,
@@ -61,6 +61,8 @@ use smithay::wayland::compositor::{
 };
 use smithay::wayland::cursor_shape::CursorShapeManagerState;
 use smithay::wayland::dmabuf::DmabufState;
+use smithay::wayland::idle_inhibit::IdleInhibitManagerState;
+use smithay::wayland::idle_notify::IdleNotifierState;
 use smithay::wayland::input_method::{InputMethodManagerState, InputMethodSeat};
 use smithay::wayland::output::OutputManagerState;
 use smithay::wayland::pointer_constraints::{with_pointer_constraint, PointerConstraintsState};
@@ -160,6 +162,8 @@ pub struct Niri {
     pub pointer_gestures_state: PointerGesturesState,
     pub relative_pointer_state: RelativePointerManagerState,
     pub pointer_constraints_state: PointerConstraintsState,
+    pub idle_notifier_state: IdleNotifierState<State>,
+    pub idle_inhibit_manager_state: IdleInhibitManagerState,
     pub data_device_state: DataDeviceState,
     pub primary_selection_state: PrimarySelectionState,
     pub data_control_state: DataControlState,
@@ -176,6 +180,8 @@ pub struct Niri {
     // this toplevel surface).
     pub keyboard_focus: Option<WlSurface>,
 
+    pub idle_inhibiting_surfaces: HashSet<WlSurface>,
+
     pub cursor_manager: CursorManager,
     pub cursor_texture_cache: CursorTextureCache,
     pub cursor_shape_manager_state: CursorShapeManagerState,
@@ -328,6 +334,7 @@ impl State {
         self.niri.cursor_manager.check_cursor_image_surface_alive();
         self.niri.refresh_pointer_outputs();
         self.niri.popups.cleanup();
+        self.niri.refresh_idle_inhibit();
         self.refresh_popup_grab();
         self.update_keyboard_focus();
         self.refresh_pointer_focus();
@@ -848,6 +855,8 @@ impl Niri {
         let pointer_gestures_state = PointerGesturesState::new::<State>(&display_handle);
         let relative_pointer_state = RelativePointerManagerState::new::<State>(&display_handle);
         let pointer_constraints_state = PointerConstraintsState::new::<State>(&display_handle);
+        let idle_notifier_state = IdleNotifierState::new(&display_handle, event_loop.clone());
+        let idle_inhibit_manager_state = IdleInhibitManagerState::new::<State>(&display_handle);
         let data_device_state = DataDeviceState::new::<State>(&display_handle);
         let primary_selection_state = PrimarySelectionState::new::<State>(&display_handle);
         let data_control_state = DataControlState::new::<State, _>(
@@ -1006,6 +1015,8 @@ impl Niri {
             pointer_gestures_state,
             relative_pointer_state,
             pointer_constraints_state,
+            idle_notifier_state,
+            idle_inhibit_manager_state,
             data_device_state,
             primary_selection_state,
             data_control_state,
@@ -1017,6 +1028,7 @@ impl Niri {
 
             seat,
             keyboard_focus: None,
+            idle_inhibiting_surfaces: HashSet::new(),
             cursor_manager,
             cursor_texture_cache: Default::default(),
             cursor_shape_manager_state,
@@ -1863,6 +1875,19 @@ impl Niri {
         }
     }
 
+    pub fn refresh_idle_inhibit(&mut self) {
+        let _span = tracy_client::span!("Niri::refresh_idle_inhibit");
+
+        self.idle_inhibiting_surfaces.retain(|s| s.is_alive());
+
+        let is_inhibited = self.idle_inhibiting_surfaces.iter().any(|surface| {
+            with_states(surface, |states| {
+                surface_primary_scanout_output(surface, states).is_some()
+            })
+        });
+        self.idle_notifier_state.set_is_inhibited(is_inhibited);
+    }
+
     pub fn render<R: NiriRenderer>(
         &self,
         renderer: &mut R,