function checkAndFocusBlockLayer() {
		if (this._oBusyBlockState && this.getDomRef(this._sBusySection)?.contains(document.activeElement)) {
			// Move focus to the busy indicator if the focus is currently within the busy control's DOM.
			this._oBusyBlockState.lastFocusPosition = document.activeElement;
			this._oBusyBlockState.$blockLayer.get(0).focus({ preventScroll: true });
		}
	}
@this {sap.ui.core.Control}
@private