Method _getHeaderTextForMonth

packages/main/src/Calendar.ts:447–471

* Generates header button text (month and year) for a specific month timestamp * @private

(monthTimestamp: number)

	 * @private
	 */
	_getHeaderTextForMonth(monthTimestamp: number): { monthText: string, yearText: string, secondMonthText?: string, secondYearText?: string } {
		const calendarDate = CalendarDateComponent.fromTimestamp(monthTimestamp * 1000, this._primaryCalendarType);
		const localeData = getCachedLocaleDataInstance(getLocale());
		const yearFormat = DateFormat.getDateInstance({ format: "y", calendarType: this._primaryCalendarType });

		const monthText = localeData.getMonthsStandAlone("wide", this._primaryCalendarType)[calendarDate.getMonth()];
		const localDate = calendarDate.toLocalJSDate();
		const yearText = String(yearFormat.format(localDate, true));

		const result: { monthText: string, yearText: string, secondMonthText?: string, secondYearText?: string } = {
			monthText,
			yearText,
		};

		if (this.hasSecondaryCalendarType) {
			const secondaryDate = transformDateToSecondaryType(this._primaryCalendarType, this._secondaryCalendarType, monthTimestamp, true);
			const secondaryCalendarDate = secondaryDate.firstDate || secondaryDate.lastDate;
			const secondaryLocaleData = getCachedLocaleDataInstance(getLocale());
			result.secondMonthText = secondaryLocaleData.getMonthsStandAlone("wide", this._secondaryCalendarType)[secondaryCalendarDate.getMonth()];
			const secondaryYearFormat = DateFormat.getDateInstance({ format: "y", calendarType: this._secondaryCalendarType });
			result.secondYearText = String(secondaryYearFormat.format(secondaryCalendarDate.toLocalJSDate(), true));
		}

		return result;
	}

	/**
	 * @private