import { OnInit, ElementRef, EventEmitter, OnDestroy, NgZone, ComponentFactoryResolver, ViewContainerRef } from '@angular/core';
import { ControlValueAccessor, Validator, AbstractControl } from '@angular/forms';
import { Overlay, OverlayRef, ScrollDispatcher } from '@angular/cdk/overlay';
import { DatepickerComponent } from './datepicker.component';
import { Directionality } from '@angular/cdk/bidi';
import { DatepickerConfig } from './datepicker.config';
export declare class DatepickerFormComponent implements OnInit, ControlValueAccessor, Validator, OnDestroy {
    private _elementRef;
    private _viewContainerRef;
    overlay: Overlay;
    private _ngZone;
    private _scrollDispatcher;
    private _componentFactoryResolver;
    private _config;
    private _dir;
    _overlayRef: OverlayRef | null;
    _calendarInstance: DatepickerComponent | null;
    private _portal;
    private readonly _destroyed;
    disabled: boolean;
    readonly: boolean;
    required: boolean;
    defaultToPresentDate: boolean;
    allowPreviousDates: boolean;
    allowFutureDates: boolean;
    dateFormat: string;
    placeholder: string;
    helpText: string;
    icon: string;
    iconPlacement: string;
    placement: 'top' | 'bottom' | 'left' | 'right';
    showDelay: number;
    hideDelay: number;
    from: string;
    to: string;
    interval: boolean;
    dueDateInterval: string;
    onDateChange: EventEmitter<Date>;
    date: Date;
    visible: boolean;
    presentDate: Date;
    isValid: boolean;
    dateValidators: ((date: Date) => boolean)[];
    private onChanged;
    private onTouched;
    private validateDateRange;
    private _elementHtmlRef;
    private _elementHtmlCollection;
    constructor(_elementRef: ElementRef, _viewContainerRef: ViewContainerRef, overlay: Overlay, _ngZone: NgZone, _scrollDispatcher: ScrollDispatcher, _componentFactoryResolver: ComponentFactoryResolver, _config: DatepickerConfig, _dir: Directionality);
    /**
     * Dispose the tooltip when destroyed.
     */
    ngOnDestroy(): void;
    ngOnInit(): void;
    setDate(date: Date): void;
    onDateSelectEvent: (inputDate: Date) => void;
    onChange(inputDate: string): void;
    onFocus(): void;
    onTab(inputDate: string): void;
    parseDate(inputDate: string): Date;
    validateIsNotBeforeDate(date: Date): boolean;
    validateIsNotAfterDate(date: Date): boolean;
    createDateRangeValidator(from: Date, to: Date): (date: Date) => boolean;
    writeValue(value: Date): void;
    registerOnChange(fn: (value: Date) => void): void;
    registerOnTouched(fn: () => void): void;
    propogateTouched(): void;
    propogateChange(value: any): void;
    validate(control: AbstractControl): {
        [key: string]: any;
    };
    private _show;
    private _hide;
    private _createOverlay;
    private _updatePosition;
    /**
     * Returns the origin position and a fallback position based on the user's position preference.
     * The fallback position is the inverse of the origin (e.g. `'bottom' -> 'top'`).
     */
    private _getOrigin;
    /** Returns the overlay position and a fallback position based on the user's preference */
    private _getOverlayPosition;
    private _invertPosition;
    private _detach;
    /** Updates the tooltip content and repositions the overlay according to the new content length */
    private _updateTooltipContent;
}