DaffMenuService

@Injectable()
class DaffMenuService {
  protected _overlay: OverlayRef
  open$: Observable<boolean> = this.$_open.asObservable()
  protected overlay: Overlay

  protected _createOverlay(
    activatorElement: ViewContainerRef
    component: DaffMenuSlot
  ): Promise<void>
  protected _destroyOverlay(): void
  close(): void
  open(
    activator: ViewContainerRef
    component: DaffMenuSlot
  ): void
}