import { ChangeDetectorRef, OnDestroy, OnInit } from '@angular/core';
import { DateAdapter, MatDateFormats } from '@angular/material/core';
import { MatCalendar, MatCalendarHeader, MatDatepickerIntl } from '@angular/material/datepicker';
import { DatePickerMode } from '../model/datepicker.model';
import { DatepickerModeService } from '../service/datepicker-mode.service';
/**
 * Default header for calendar of GorDatepicker.
 *
 * @see MatCalendarHeader
 */
export declare class CalendarHeaderComponent<D> extends MatCalendarHeader<D> implements OnInit, OnDestroy {
    private modeService;
    /**
     * A valid text color for period button.
     *
     * @default "#2d2d2d"
     */
    color: string;
    /**
     * A valid fill color for next and previous buttons.
     *
     * @default "#888e8e"
     */
    colorCtrls: string;
    /**
     * A flag to choose the behavior of datepicker header
     * If it's set year-only, then the header can't be changed
     * If it's set year-month, then the hader can toggle between year and multi-year view
     * If it's set all, then the default behavior will be chosen
     *
     * @default "all"
     */
    mode: DatePickerMode;
    constructor(_intl: MatDatepickerIntl, calendar: MatCalendar<D>, _dateAdapter: DateAdapter<D>, _dateFormats: MatDateFormats, changeDetectorRef: ChangeDetectorRef, modeService: DatepickerModeService);
    ngOnInit(): void;
    currentPeriodClicked: () => void;
    ngOnDestroy(): void;
}