import { ChangeDetectorRef, ElementRef, NgZone, OnInit, QueryList, Renderer2, WritableSignal } from '@angular/core';
import { Router } from '@angular/router';
import { NgDocPageToc, NgDocTocItem } from '@ng-doc/app/interfaces';
import { NgDocTocElementComponent } from './toc-element/toc-element.component';
import * as i0 from "@angular/core";
export declare class NgDocTocComponent implements NgDocPageToc, OnInit {
    tableOfContent: NgDocTocItem[];
    selection?: ElementRef<HTMLElement>;
    elements: QueryList<NgDocTocElementComponent>;
    activeItem: WritableSignal<NgDocTocItem | undefined>;
    protected readonly document: Document;
    protected readonly ngZone: NgZone;
    protected readonly changeDetectorRef: ChangeDetectorRef;
    protected readonly renderer: Renderer2;
    protected readonly router: Router;
    constructor();
    ngOnInit(): void;
    /**
     * Selects the item in the table of content.
     * @param item - Item to select.
     */
    protected select(item: NgDocTocItem): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgDocTocComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NgDocTocComponent, "ng-doc-toc", never, { "tableOfContent": { "alias": "tableOfContent"; "required": false; }; }, {}, never, never, true, never>;
}