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Commit `4b22f3d1f79d`

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atagen <boss@atagen.co>2026-10-19 10:59 UTC

1 file changed+9-1

xwayland: start a compositor drag only from a press on the requesting window

x11_drag accepted any active pointer grab, so an X11 client could start moving or resizing its window while the user held a button on some other surface.

Modified file: crates/monolith/src/xwayland.rs+9 additions−1 deletions@@ -530,7 +530,8 @@ impl State {
             .map(|(id, _)| id)
     }
 
-    /// X11 requests carry no serial, so the pointer must be holding a press.
+    /// X11 requests carry no serial, so the pointer must be holding a press
+    /// that started on the requesting window.
     fn x11_drag(&mut self, window: &X11Surface, edges: Option<Edges>) {
         let Some(start) = self
             .input
@@ -540,6 +541,13 @@ impl State {
         else {
             return;
         };
+        let held = start
+            .focus
+            .as_ref()
+            .is_some_and(|(f, _)| window.wl_surface().as_ref() == Some(f));
+        if !held {
+            return;
+        }
         if let Some(id) = self.x11_window_id(window) {
             self.client_drag(id, edges, start.button);
         }

monolith

Commit 4b22f3d1f79d

Commit `4b22f3d1f79d`