kms: Dmabuf feedback support

src/shell/layout/floating/grabs/moving.rs

@@ -5,6 +5,7 @@ use crate::{
     shell::{
         element::{window::CosmicWindowRenderElement, CosmicMapped, CosmicMappedRenderElement},
         focus::target::{KeyboardFocusTarget, PointerFocusTarget},
+        CosmicSurface,
     },
     utils::prelude::*,
 };
@@ -91,6 +92,10 @@ impl MoveGrabState {
             .active_window()
             .send_frame(output, time, throttle, primary_scan_out_output)
     }
+
+    pub fn window(&self) -> CosmicSurface {
+        self.window.active_window()
+    }
 }
 
 pub struct MoveSurfaceGrab {