1 files changed, 12 insertions, 0 deletions
diff --git a/src/window/mapped.rs b/src/window/mapped.rs
index 238f77a0..6481e9b8 100644
--- a/src/window/mapped.rs
+++ b/src/window/mapped.rs
@@ -183,6 +183,9 @@ pub struct Mapped {
     /// These have been "sent" to the window in form of configures, but the window hadn't committed
     /// in response yet.
     uncommitted_maximized: Vec<(Serial, bool)>,
+
+    /// Most recent monotonic time when the window had the focus.
+    focus_timestamp: Option<Duration>,
 }
 
 niri_render_elements! {
@@ -279,6 +282,7 @@ impl Mapped {
             is_maximized: false,
             is_pending_maximized: false,
             uncommitted_maximized: Vec::new(),
+            focus_timestamp: None,
         };
 
         rv.is_maximized = rv.sizing_mode().is_maximized();
@@ -515,6 +519,14 @@ impl Mapped {
         })
     }
 
+    pub fn get_focus_timestamp(&self) -> Option<Duration> {
+        self.focus_timestamp
+    }
+
+    pub fn set_focus_timestamp(&mut self, timestamp: Duration) {
+        self.focus_timestamp.replace(timestamp);
+    }
+
     pub fn send_frame<T, F>(
         &mut self,
         output: &Output,