this->SelectOtherAirport(i);

						return;

					}

				}

			}

		}

		/* If all airports are unavailable, select nothing. */

		this->SelectOtherAirport(-1);

	}

	void OnDropdownSelect(int widget, int index) override

	{

		_selected_airport_class = (AirportClassID)index;

		this->vscroll->SetCount(AirportClass::Get(_selected_airport_class)->GetSpecCount());

		this->SelectFirstAvailableAirport(false);

	}

	void OnRealtimeTick([[maybe_unused]] uint delta_ms) override

	{

		CheckRedrawStationCoverage(this);

	}

	IntervalTimer<TimerGameCalendar> yearly_interval = {{TimerGameCalendar::YEAR, TimerGameCalendar::Priority::NONE}, [this](auto) {

		this->InvalidateData();

	}};

};

static const NWidgetPart _nested_build_airport_widgets[] = {