Settle window animations when their workspace hides

compositor/src/state.rs

@@ -1460,7 +1460,11 @@ impl Ferese {
             if visible.contains(id) {
                 continue;
             }
-            layout_changed |= space.element_location(window).is_some();
+            let was_mapped = space.element_location(window).is_some();
+            layout_changed |= was_mapped;
+            if was_mapped && let Some(geometry) = self.window_geometry.get_mut(id) {
+                geometry.settle_presentation();
+            }
             space.unmap_elem(window);
         }
         self.space = space;

crates/ferese-animation/src/lib.rs

@@ -597,6 +597,22 @@ mod tests {
         assert!(!geometry.advance(Duration::from_millis(16), SpringConfig::default(), true));
     }
 
+    #[test]
+    fn hiding_maximized_window_finishes_resize_without_hiding_decorations() {
+        let normal = Rect::new(100.0, 50.0, 900.0, 700.0);
+        let maximized = Rect::new(0.0, 40.0, 1920.0, 1040.0);
+        let mut geometry = WindowGeometry::new(normal, None);
+        geometry.set_presentation_mode(maximized, PresentationMode::Maximized, Duration::ZERO);
+        geometry.advance(Duration::from_millis(16), SpringConfig::default(), true);
+        assert!(geometry.is_zooming());
+
+        geometry.settle_presentation();
+
+        assert_eq!(geometry.visual.current, maximized);
+        assert_eq!(geometry.decorations, 1.0);
+        assert!(!geometry.is_zooming());
+    }
+
     #[test]
     fn maximized_zoom_keeps_decorations_and_restores_through_fullscreen() {
         let normal = Rect::new(800.0, 50.0, 600.0, 700.0);