Stop screencasts on size changes

1 files changed, 11 insertions, 0 deletions

diff --git a/src/niri.rs b/src/niri.rs
index 2ed62c99..424fa712 100644
--- a/src/niri.rs
+++ b/src/niri.rs
@@ -2434,6 +2434,7 @@ impl Niri {
         let scale = Scale::from(output.current_scale().fractional_scale());
 
         let mut elements = None;
+        let mut casts_to_stop = vec![];
 
         let mut casts = mem::take(&mut self.casts);
         for cast in &mut casts {
@@ -2445,6 +2446,12 @@ impl Niri {
                 continue;
             }
 
+            if cast.size != size {
+                debug!("stopping screencast due to output size change");
+                casts_to_stop.push(cast.session_id);
+                continue;
+            }
+
             let last = cast.last_frame_time;
             let min = cast.min_time_between_frames.get();
             if last.is_zero() {
@@ -2499,6 +2506,10 @@ impl Niri {
             cast.last_frame_time = target_presentation_time;
         }
         self.casts = casts;
+
+        for id in casts_to_stop {
+            self.stop_cast(id);
+        }
     }
 
     #[cfg(feature = "xdp-gnome-screencast")]