import { FocusableOption } from '@angular/cdk/a11y';
import { AfterViewInit, ElementRef, OnDestroy } from '@angular/core';
import { BehaviorSubject, Observable } from 'rxjs';
import { IconType } from '../../../../common/index';
import type { PageHeaderNavigationItem } from '../navigation.component';
import * as i0 from "@angular/core";
export declare class PageHeaderNavigationItemComponent implements AfterViewInit, OnDestroy, FocusableOption {
    readonly elementRef: ElementRef<any>;
    private readonly _pageHeaderService;
    private readonly _navigationService;
    /** Access the data for this dropdown item */
    set item(item: PageHeaderNavigationItem);
    get item(): PageHeaderNavigationItem;
    /** Store the secondary state */
    secondary$: BehaviorSubject<boolean>;
    /** Store the open state of the item dropdown */
    isOpen: boolean;
    /** Store the item data */
    _item: PageHeaderNavigationItem;
    /** Store the icon type */
    _iconType: IconType;
    /** Update the tabindex based on keyboard input */
    _tabindex: Observable<number>;
    /** Access the navigation button element */
    navigationBtn: ElementRef;
    /** Unsubscribe when the component is destroyed */
    private readonly _onDestroy;
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    focus(): void;
    select(): void;
    onKeydown(event: KeyboardEvent, target: HTMLElement): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<PageHeaderNavigationItemComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<PageHeaderNavigationItemComponent, "ux-page-header-horizontal-navigation-item", never, { "item": { "alias": "item"; "required": false; }; }, {}, never, never, false, never>;
}