void destroydragicon(struct wl_listener *listener, void *data) {
  /* Focus enter isn't sent during drag, so refocus the focused node. */
  focusclient(focustop(selmon), 1);
  motionnotify(0, NULL, 0, 0, 0, 0);
  wl_list_remove(&listener->link);
  free(listener);
}

void requeststartdrag(struct wl_listener *listener, void *data) {
  struct wlr_seat_request_start_drag_event *event = data;

  if (wlr_seat_validate_pointer_grab_serial(seat, event->origin, event->serial))
    wlr_seat_start_pointer_drag(seat, event->drag, event->serial);
  else
    wlr_data_source_destroy(event->drag->source);
}

void startdrag(struct wl_listener *listener, void *data) {
  struct wlr_drag *drag = data;
  if (!drag->icon)
    return;

  drag->icon->data = &wlr_scene_drag_icon_create(drag_icon, drag->icon)->node;
  LISTEN_STATIC(&drag->icon->events.destroy, destroydragicon);
}