tree: restack containing float when node is activated

src/ifs/wl_seat/pointer_owner.rs

@@ -338,6 +338,7 @@ impl<T: SimplePointerOwnerUsecase> PointerOwner for SimplePointerOwner<T> {
                 node: pn.clone(),
                 serial,
             }));
+        pn.node_restack();
         pn.node_seat_state().add_pointer_grab(seat);
         seat.handle_node_button(pn, time_usec, button, state, serial);
     }

src/ifs/wl_seat/tablet/tool_owner.rs

@@ -94,9 +94,11 @@ impl ToolOwner for DefaultToolOwner {
         if state == ToolButtonState::Released {
             return;
         }
+        let node = tool.node.get();
+        node.node_restack();
         let owner = Rc::new(GrabToolOwner {
             buttons: Default::default(),
-            node: tool.node.get(),
+            node,
         });
         tool.tool_owner.owner.set(owner.clone());
         owner.button(tool, time_usec, button, state);

src/ifs/wl_seat/touch_owner.rs

@@ -71,6 +71,7 @@ impl TouchOwner for DefaultTouchOwner {
     fn down(&self, seat: &Rc<WlSeatGlobal>, time_usec: u64, id: i32, x: Fixed, y: Fixed) {
         let node = seat.state.node_at(x.round_down(), y.round_down());
         node.node.node_seat_state().touch_begin(seat);
+        node.node.node_restack();
         let owner = Rc::new(GrabTouchOwner {
             node: node.node,
             down_ids: Default::default(),

src/tree/float.rs

@@ -988,3 +988,13 @@ impl PinnedNode for FloatNode {
         self.set_workspace_(workspace, false, update_visible);
     }
 }
+
+impl dyn Node {
+    pub fn node_restack(self: &Rc<Self>) {
+        if let Some(tl) = self.clone().node_toplevel()
+            && let Some(float) = tl.tl_data().float.get()
+        {
+            float.restack();
+        }
+    }
+}