#if INPUTSYSTEM_SUPPORT && UX_NAVIGATION
namespace UnityEngine.UI
{
    [DisallowMultipleComponent]
    internal sealed class UXNavigationLayerWatcher : MonoBehaviour
    {
        private UXNavigationRuntime _runtime;

        internal void Initialize(UXNavigationRuntime runtime)
        {
            _runtime = runtime;
        }

        private void OnTransformChildrenChanged()
        {
            _runtime?.MarkDiscoveryDirty();
        }
    }
}
#endif