import { EventEmitter, OnInit } from '@angular/core';
import { Observable } from 'rxjs';
import { NavMenuItem, NavMenuSection } from '../../providers/nav-builder/nav-builder-types';
import { BaseNavComponent } from '../base-nav/base-nav.component';
import * as i0 from "@angular/core";
export declare class MainNavComponent extends BaseNavComponent implements OnInit {
    displayMode: string | undefined;
    itemClick: EventEmitter<NavMenuItem>;
    mainMenuConfig$: Observable<NavMenuSection[]>;
    expandedSections: string[];
    ngOnInit(): void;
    toggleExpand(section: NavMenuSection): void;
    setExpanded(section: NavMenuSection, expanded: boolean): void;
    getStyleForSection(section: NavMenuSection): {
        maxHeight: string;
        opacity: number;
        visibility: string;
    } | undefined;
    onItemClick(item: NavMenuItem, event: MouseEvent): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<MainNavComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<MainNavComponent, "vdr-main-nav", never, { "displayMode": { "alias": "displayMode"; "required": false; }; }, { "itemClick": "itemClick"; }, never, never, false, never>;
}