import { Overlay, OverlayRef } from '@angular/cdk/overlay';
import { ChangeDetectorRef, DoCheck, EventEmitter, OnDestroy, OnInit, ViewContainerRef } from '@angular/core';
import { AbstractControl, ControlValueAccessor, FormGroupDirective, Validator } from '@angular/forms';
import { TextInputDirective } from '../text-input/text-input.directive';
import { DatepickerConfig } from './datepicker.config';
import { DatePickerInterval } from './datepicker.model';
import * as i0 from "@angular/core";
export declare class DatepickerFormComponent implements OnInit, ControlValueAccessor, Validator, OnDestroy, DoCheck {
    private _viewContainerRef;
    overlay: Overlay;
    private _config;
    private _cd;
    /** for controlling input label positioning */
    datePickerFormInput: TextInputDirective;
    /** for managing form input state */
    datePickerForm: FormGroupDirective;
    private _menuRef;
    private _originRef;
    _overlayRef: OverlayRef | null;
    private _portal;
    private readonly _destroyed;
    isOpen: boolean;
    isInputFocus: boolean;
    /** The timeout ID of any current timer set to show the calendar */
    private _showTimeoutId;
    /** The timeout ID of any current timer set to hide the calendar */
    private _hideTimeoutId;
    activeTabIndex: number;
    selectedInterval: DatePickerInterval;
    date: Date;
    presentDate: Date;
    isValid: boolean;
    dateValidators: ((date: Date) => boolean)[];
    private onChanged;
    private onTouched;
    private validateDateRange;
    /** Adds the disabled html attribute to the components input element */
    disabled: boolean;
    /** Adds the readonly html attribute to the components input element. */
    readonly: boolean;
    /**
     * Adds the required html attribute to the components input element
     * and a required asterisk on the input label.
     */
    required: boolean;
    /** Initializes the component with a value of the present date. */
    defaultToPresentDate: boolean;
    /**
     * Setting to false will disallow the user from selecting dates
     * before the present date
     */
    allowPreviousDates: boolean;
    /**
     * Setting to false will disallow the user from selecting dates
     * after the present date.
     */
    allowFutureDates: boolean;
    /**
     * A JavaScript Date object formatting string, formats the display
     * of components current value.
     */
    dateFormat: string;
    /**
     * This attribute specifies the placeholder value of the components
     * input element.
     */
    placeholder: string;
    /** This attribute specifies the text value of input helper. */
    helpText: string;
    /** Specifies visibility of input help text */
    helpTextVisible: boolean;
    /** Warning state of input */
    isWarning: boolean;
    /** Danger state of input */
    isDanger: boolean;
    /** This attribute specifies the font icon name. */
    icon: string;
    /** This attribute specifies the icon placement. */
    iconPlacement: string;
    /** Specifies the position the datepicker opens against the input element */
    placement: 'top' | 'bottom' | 'left' | 'right';
    /** delay in ms before showing the calendar after show is called */
    showDelay: number;
    /** delay in ms before hiding the calendar after hide is called */
    hideDelay: number;
    /** Specifies the inclusive beginning date for allowed date values */
    from: string;
    /** Specifies the inclusive end date for allowed date values */
    to: string;
    /** Enables interval selection */
    interval: boolean;
    dueDateInterval: string;
    /** Mask pattern for date picker text input */
    maskPattern: string;
    /** Emits a Date is selected from the Datepicker or a valid date string is entered into input field */
    dateChange: EventEmitter<Date>;
    /** Emits a boolean if date picker input field is in focus */
    inputFocus: EventEmitter<void>;
    constructor(_viewContainerRef: ViewContainerRef, overlay: Overlay, _config: DatepickerConfig, _cd: ChangeDetectorRef);
    ngOnInit(): void;
    ngDoCheck(): void;
    ngOnDestroy(): void;
    /** Listen to keyboard events to trigger changes to overlay state */
    onKeydown($event: KeyboardEvent): void;
    setDate(date: Date): void;
    onDateSelection($event: Date): void;
    onIntervalSelection($event: DatePickerInterval & {
        date: Date;
    }): void;
    onChange($event: Event): void;
    onFocused($event: FocusEvent): void;
    onBlur($event: FocusEvent): void;
    onButtonClick($event: Event): void;
    onIntervalCancel($event: Event): void;
    onKeydownTab($event: Event): void;
    onKeydownSpace($event: Event): void;
    onTabSelect(index: number): void;
    parseDate(inputDate: string | Date): 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;
    };
    /** open overlay */
    private _show;
    /** close overlay */
    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;
    private _updateLabelStyle;
    static ɵfac: i0.ɵɵFactoryDeclaration<DatepickerFormComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<DatepickerFormComponent, "hxa-datepicker-input", never, { "disabled": "disabled"; "readonly": "readonly"; "required": "required"; "defaultToPresentDate": "defaultToPresentDate"; "allowPreviousDates": "allowPreviousDates"; "allowFutureDates": "allowFutureDates"; "dateFormat": "dateFormat"; "placeholder": "placeholder"; "helpText": "helpText"; "helpTextVisible": "helpTextVisible"; "isWarning": "isWarning"; "isDanger": "isDanger"; "icon": "icon"; "iconPlacement": "iconPlacement"; "placement": "placement"; "showDelay": "showDelay"; "hideDelay": "hideDelay"; "from": "from"; "to": "to"; "interval": "interval"; "dueDateInterval": "dueDateInterval"; "maskPattern": "maskPattern"; }, { "dateChange": "dateChange"; "inputFocus": "inputFocus"; }, never, never>;
}