1 files changed, 7 insertions, 2 deletions
diff --git a/components/script/dom/window.rs b/components/script/dom/window.rs
index 4862cb83c9e..3d6695986ae 100644
--- a/components/script/dom/window.rs
+++ b/components/script/dom/window.rs
@@ -995,13 +995,18 @@ impl Window {
         };
 
         // TODO (farodin91): Raise an event to stop the current_viewport
-        let size = self.current_viewport.get().size;
-        self.current_viewport.set(Rect::new(Point2D::new(Au::from_f32_px(x), Au::from_f32_px(y)), size));
+        self.update_viewport_for_scroll(x, y);
 
         let message = ConstellationMsg::ScrollFragmentPoint(self.pipeline(), layer_id, point, smooth);
         self.constellation_chan.send(message).unwrap();
     }
 
+    pub fn update_viewport_for_scroll(&self, x: f32, y: f32) {
+        let size = self.current_viewport.get().size;
+        let new_viewport = Rect::new(Point2D::new(Au::from_f32_px(x), Au::from_f32_px(y)), size);
+        self.current_viewport.set(new_viewport)
+    }
+
     pub fn client_window(&self) -> (Size2D<u32>, Point2D<i32>) {
         let (send, recv) = ipc::channel::<(Size2D<u32>, Point2D<i32>)>().unwrap();
         self.constellation_chan.send(ConstellationMsg::GetClientWindow(send)).unwrap();