Add login1 LidClosed monitoring

src/niri.rs

@@ -120,6 +120,8 @@ use crate::cursor::{CursorManager, CursorTextureCache, RenderCursor, XCursor};
 #[cfg(feature = "dbus")]
 use crate::dbus::freedesktop_locale1::Locale1ToNiri;
 #[cfg(feature = "dbus")]
+use crate::dbus::freedesktop_login1::Login1ToNiri;
+#[cfg(feature = "dbus")]
 use crate::dbus::gnome_shell_introspect::{self, IntrospectToNiri, NiriToIntrospect};
 #[cfg(feature = "dbus")]
 use crate::dbus::gnome_shell_screenshot::{NiriToScreenshot, ScreenshotToNiri};
@@ -726,6 +728,8 @@ impl State {
         self.niri.notified_activity_this_iteration = false;
     }
 
+    // We monitor both libinput and logind: libinput is always there (including without DBus), but
+    // it misses some switch events (e.g. after unsuspend) on some systems.
     pub fn set_lid_closed(&mut self, is_closed: bool) {
         if self.niri.is_lid_closed == is_closed {
             return;
@@ -2298,6 +2302,14 @@ impl State {
         }
     }
 
+    #[cfg(feature = "dbus")]
+    pub fn on_login1_msg(&mut self, msg: Login1ToNiri) {
+        let Login1ToNiri::LidClosedChanged(is_closed) = msg;
+
+        trace!("login1 lid {}", if is_closed { "closed" } else { "opened" });
+        self.set_lid_closed(is_closed);
+    }
+
     #[cfg(feature = "dbus")]
     pub fn on_locale1_msg(&mut self, msg: Locale1ToNiri) {
         let Locale1ToNiri::XkbChanged(xkb) = msg;