/**
 * 锚点导航
 */
import React from 'react';
import type { AnchorNavProps, AnchorNavSchema, AnchorNavSectionProps } from './types';
interface SectionOffset {
    key: string | number;
    offsetTop: number;
}
interface AnchorNavState {
    active: AnchorNavSchema['active'];
    offsetArr: SectionOffset[];
}
export declare class AnchorNavSection extends React.PureComponent<AnchorNavSectionProps> {
    contentDom: any;
    contentRef: (ref: any) => any;
    render(): JSX.Element;
}
export declare class AnchorNav extends React.Component<AnchorNavProps, AnchorNavState> {
    static defaultProps: Partial<AnchorNavProps>;
    contentDom: React.RefObject<HTMLDivElement>;
    observer: MutationObserver;
    fromSelect: boolean;
    resetFromSelectTimer: NodeJS.Timeout | null;
    constructor(props: AnchorNavProps);
    componentDidMount(): void;
    componentWillUnmount(): void;
    updateSectionOffset: (parentNode: HTMLElement, inited: boolean) => void;
    scrollToNav: (e: Event) => void;
    scrollToSection: (key: string | number) => void;
    handleSelect(key: string | number): void;
    fireSelect: (key: string | number, callback?: () => void) => void;
    renderLink: (link: any, index: number) => JSX.Element | undefined;
    renderSection: (section: any, index: number) => React.DetailedReactHTMLElement<any, HTMLElement> | undefined;
    render(): JSX.Element | null;
}
declare const _default: typeof AnchorNav & {
    AnchorNavSection: typeof AnchorNavSection;
};
export default _default;