Scroll box example

lib/ui_platform_wayland/src/lib.rs

@@ -1556,6 +1556,23 @@ impl Dispatch<wl_pointer::WlPointer, ()> for State {
                     .pending_pointer_events
                     .push(PointerEvent::new(0, position, kind));
             }
+            wl_pointer::Event::Axis { axis, value, .. } => {
+                let Some(position) = state.pointer_position else {
+                    return;
+                };
+                let delta = match axis {
+                    WEnum::Value(wl_pointer::Axis::VerticalScroll) => Point::new(0.0, value as f32),
+                    WEnum::Value(wl_pointer::Axis::HorizontalScroll) => {
+                        Point::new(value as f32, 0.0)
+                    }
+                    WEnum::Value(_) | WEnum::Unknown(_) => return,
+                };
+                state.pending_pointer_events.push(PointerEvent::new(
+                    0,
+                    position,
+                    PointerEventKind::Scroll { delta },
+                ));
+            }
             _ => {}
         }
     }