Class IncompleteDate

packages/react-stately/src/datepicker/IncompleteDate.ts:25–338

 * time. This enables the user to adjust the day period (e.g. am/pm) independently from the hour.
 */
export class IncompleteDate {
  calendar: Calendar;
  era: string | null;
  year: number | null;
  month: number | null;
  day: number | null;
  hour: number | null;
  hourCycle: HourCycle;
  dayPeriod: number | null;
  minute: number | null;
  second: number | null;
  millisecond: number | null;
  offset: number | null;

  constructor(
    calendar: Calendar,
    hourCycle: HourCycle,
    dateValue?: Partial<Omit<AnyDateTime, 'copy'>> | null
  ) {
    this.era = dateValue?.era ?? null;
    this.calendar = calendar;
    this.year = dateValue?.year ?? null;
    this.month = dateValue?.month ?? null;
    this.day = dateValue?.day ?? null;
    this.hour = dateValue?.hour ?? null;
    this.hourCycle = hourCycle;
    this.dayPeriod = null;
    this.minute = dateValue?.minute ?? null;
    this.second = dateValue?.second ?? null;
    this.millisecond = dateValue?.millisecond ?? null;
    this.offset = 'offset' in (dateValue ?? {}) ? (dateValue as any).offset : null;

    // Convert the hour from 24 hour time to the given hour cycle.
    if (this.hour != null) {
      let [dayPeriod, hour] = toHourCycle(this.hour, hourCycle);
      this.dayPeriod = dayPeriod;
      this.hour = hour;
    }
  }

  copy(): IncompleteDate {
    let res = new IncompleteDate(this.calendar, this.hourCycle);
    res.era = this.era;
    res.year = this.year;
    res.month = this.month;
    res.day = this.day;
    res.hour = this.hour;
    res.dayPeriod = this.dayPeriod;
    res.minute = this.minute;
    res.second = this.second;
    res.millisecond = this.millisecond;
    res.offset = this.offset;
    return res;
  }

  /** Checks whether all the specified segments have a value. */
  isComplete(segments: DateSegmentType[]) {
    return segments.every(segment => this[segment] != null);