Method constructor

src/material/timepicker/timepicker.ts:216–242

()

  readonly panelClass = input<string | string[]>();

  constructor() {
    if (typeof ngDevMode === 'undefined' || ngDevMode) {
      validateAdapter(this._dateAdapter, this._dateFormats);

      effect(() => {
        const options = this.options();
        const interval = this.interval();

        if (options !== null && interval !== null) {
          throw new Error(
            'Cannot specify both the `options` and `interval` inputs at the same time',
          );
        } else if (options?.length === 0) {
          throw new Error('Value of `options` input cannot be an empty array');
        }
      });
    }

    // Since the panel ID is static, we can set it once without having to maintain a host binding.
    const element = inject<ElementRef<HTMLElement>>(ElementRef);
    element.nativeElement.setAttribute('mat-timepicker-panel-id', this.panelId);
    this._handleLocaleChanges();
    this._handleInputStateChanges();
    this._keyManager.change.subscribe(() =>
      this._activeDescendant.set(this._keyManager.activeItem?.id || null),
    );
  }

  /** Opens the timepicker. */
  open(): void {