import { ChangeDetectorRef, OnDestroy, AfterContentInit, OnChanges, SimpleChanges } from '@angular/core';
import { HcDatepickerIntl } from '../datepicker-intl';
import { DatepickerComponent } from '../datepicker.component';
import { ButtonComponent } from '../../button/button.component';
/** Can be used to override the icon of a `hcDatepickerToggle`. */
export declare class DatepickerToggleIconDirective {
}
export declare class DatepickerToggleComponent implements AfterContentInit, OnChanges, OnDestroy {
    _intl: HcDatepickerIntl;
    private _changeDetectorRef;
    private _stateChanges;
    /** Datepicker instance that the button will toggle. */
    datepicker: DatepickerComponent;
    /** Tabindex for the toggle. */
    tabIndex: number | null;
    /** Whether the toggle button is disabled. */
    disabled: boolean;
    private _disabled;
    /** Custom icon set by the consumer. */
    _customIcon: DatepickerToggleIconDirective;
    /** Underlying button element. */
    _button: ButtonComponent;
    constructor(_intl: HcDatepickerIntl, _changeDetectorRef: ChangeDetectorRef, defaultTabIndex: string);
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    ngAfterContentInit(): void;
    _open(event: Event): void;
    private _watchStateChanges;
}