import { ComponentType, Portal, TemplatePortal } from '@angular/cdk/portal';
import { AfterContentInit, ChangeDetectorRef, ElementRef, EventEmitter, NgZone, OnDestroy } from '@angular/core';
import { DatetimeAdapter, MtxDatetimeFormats } from '@ng-matero/extensions/core';
import { MtxClockView } from './clock';
import { MtxDatetimepickerFilterType } from './datetimepicker-filtertype';
import { MtxDatetimepickerIntl } from './datetimepicker-intl';
import { MtxAMPM, MtxCalendarView, MtxDatetimepickerType } from './datetimepicker-types';
import * as i0 from "@angular/core";
/**
 * A calendar that is used as part of the datetimepicker.
 * @docs-private
 */
export declare class MtxCalendar<D> implements AfterContentInit, OnDestroy {
    private _elementRef;
    private _intl;
    private _ngZone;
    private _adapter;
    private _dateFormats;
    /** Whether to show multi-year view. */
    multiYearSelector: boolean;
    /** Whether the clock uses 12 hour format. */
    twelvehour: boolean;
    /** Whether the calendar should be started in month or year view. */
    startView: MtxCalendarView;
    /** Step over minutes. */
    timeInterval: number;
    /** A function used to filter which dates are selectable. */
    dateFilter: (date: D, type: MtxDatetimepickerFilterType) => boolean;
    /** Prevent user to select same date time */
    preventSameDateTimeSelection: boolean;
    /** Input for custom header component */
    headerComponent: ComponentType<any>;
    /** Input for action buttons. */
    actionsPortal: TemplatePortal | null;
    /** Emits when the currently selected date changes. */
    selectedChange: EventEmitter<D>;
    /** Emits when the view has been changed. */
    viewChanged: EventEmitter<MtxCalendarView>;
    _userSelection: EventEmitter<void>;
    _AMPM: MtxAMPM;
    _clockView: MtxClockView;
    _calendarState: string;
    /** A portal containing the header component. */
    _calendarHeaderPortal: Portal<any>;
    private _intlChanges;
    private _clampedActiveDate;
    private _injector;
    constructor(_elementRef: ElementRef, _intl: MtxDatetimepickerIntl, _ngZone: NgZone, _adapter: DatetimeAdapter<D>, _dateFormats: MtxDatetimeFormats, _changeDetectorRef: ChangeDetectorRef);
    /** The display type of datetimepicker. */
    get type(): MtxDatetimepickerType;
    set type(value: MtxDatetimepickerType);
    private _type;
    /** A date representing the period (month or year) to start the calendar in. */
    get startAt(): D | null;
    set startAt(value: D | null);
    private _startAt;
    /**
     * Whether the calendar is in time mode. In time mode the calendar clock gets time input elements
     * rather then just clock. When touchUi is enabled this will be disabled
     */
    timeInput: boolean;
    /** The currently selected date. */
    get selected(): D | null;
    set selected(value: D | null);
    private _selected;
    /** The minimum selectable date. */
    get minDate(): D | null;
    set minDate(value: D | null);
    private _minDate;
    /** The maximum selectable date. */
    get maxDate(): D | null;
    set maxDate(value: D | null);
    private _maxDate;
    /**
     * The current active date. This determines which time period is shown and which date is
     * highlighted when using keyboard navigation.
     */
    get _activeDate(): D;
    set _activeDate(value: D);
    /** Whether the calendar is in month view. */
    get currentView(): MtxCalendarView;
    set currentView(view: MtxCalendarView);
    private _currentView;
    get _yearPeriodText(): string;
    get _yearButtonText(): string;
    get _yearButtonLabel(): string;
    get _dateButtonText(): string;
    get _dateButtonLabel(): string;
    get _hoursButtonText(): string;
    get _hourButtonLabel(): string;
    get _minutesButtonText(): string;
    get _minuteButtonLabel(): string;
    get _prevButtonLabel(): string;
    get _nextButtonLabel(): string;
    /** Date filter for the month and year views. */
    _dateFilterForViews: (date: D) => boolean;
    _userSelected(): void;
    ngAfterContentInit(): void;
    ngOnDestroy(): void;
    /** Handles date selection in the month view. */
    _dateSelected(date: D): void;
    /** Handles month selection in the year view. */
    _monthSelected(month: D): void;
    /** Handles year selection in the multi year view. */
    _yearSelected(year: D): void;
    _timeSelected(date: D): void;
    _dialTimeSelected(date: D): void;
    _onActiveDateChange(date: D): void;
    _updateDate(date: D): D;
    _selectAMPM(date: D): void;
    _ampmClicked(source: MtxAMPM): void;
    _yearClicked(): void;
    _dateClicked(): void;
    _hoursClicked(): void;
    _minutesClicked(): void;
    /** Handles user clicks on the previous button. */
    _previousClicked(): void;
    /** Handles user clicks on the next button. */
    _nextClicked(): void;
    /** Whether the previous period button is enabled. */
    _previousEnabled(): boolean;
    /** Whether the next period button is enabled. */
    _nextEnabled(): boolean;
    /** Handles keydown events on the calendar body. */
    _handleCalendarBodyKeydown(event: KeyboardEvent): void;
    _focusActiveCell(): void;
    _calendarStateDone(): void;
    /** Whether the two dates represent the same view in the current view mode (month or year). */
    private _isSameView;
    /** Handles keydown events on the calendar body when calendar is in month view. */
    private _handleCalendarBodyKeydownInMonthView;
    /** Handles keydown events on the calendar body when calendar is in year view. */
    private _handleCalendarBodyKeydownInYearView;
    /** Handles keydown events on the calendar body when calendar is in multi-year view. */
    private _handleCalendarBodyKeydownInMultiYearView;
    /** Handles keydown events on the calendar body when calendar is in month view. */
    private _handleCalendarBodyKeydownInClockView;
    /**
     * Determine the date for the month that comes before the given month in the same column in the
     * calendar table.
     */
    private _prevMonthInSameCol;
    /**
     * Determine the date for the month that comes after the given month in the same column in the
     * calendar table.
     */
    private _nextMonthInSameCol;
    private calendarState;
    private _2digit;
    static ɵfac: i0.ɵɵFactoryDeclaration<MtxCalendar<any>, [null, null, null, { optional: true; }, { optional: true; }, null]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<MtxCalendar<any>, "mtx-calendar", ["mtxCalendar"], { "multiYearSelector": { "alias": "multiYearSelector"; "required": false; }; "twelvehour": { "alias": "twelvehour"; "required": false; }; "startView": { "alias": "startView"; "required": false; }; "timeInterval": { "alias": "timeInterval"; "required": false; }; "dateFilter": { "alias": "dateFilter"; "required": false; }; "preventSameDateTimeSelection": { "alias": "preventSameDateTimeSelection"; "required": false; }; "headerComponent": { "alias": "headerComponent"; "required": false; }; "actionsPortal": { "alias": "actionsPortal"; "required": false; }; "type": { "alias": "type"; "required": false; }; "startAt": { "alias": "startAt"; "required": false; }; "timeInput": { "alias": "timeInput"; "required": false; }; "selected": { "alias": "selected"; "required": false; }; "minDate": { "alias": "minDate"; "required": false; }; "maxDate": { "alias": "maxDate"; "required": false; }; }, { "selectedChange": "selectedChange"; "viewChanged": "viewChanged"; "_userSelection": "_userSelection"; }, never, never, true, never>;
    static ngAcceptInputType_multiYearSelector: unknown;
    static ngAcceptInputType_twelvehour: unknown;
    static ngAcceptInputType_timeInput: unknown;
}