/**
 *
 * This file may have been modified by Bytedance Inc. (“Bytedance Inc.'s Modifications”). 
 * All Bytedance Inc.'s Modifications are Copyright (year) Bytedance Inc..  
 * 
 * This source code is licensed under the Apache license.
 * See LICENSE file in the project root for license information.
 *
 */
import * as React from 'react';
import AnchorLink from './AnchorLink';
import { ConfigConsumerProps } from '../../config-provider';
export declare type AnchorContainer = HTMLElement | Window;
export interface AnchorProps {
    prefixCls?: string;
    className?: string;
    style?: React.CSSProperties;
    children?: React.ReactNode;
    offsetTop?: number;
    bounds?: number;
    affix?: boolean;
    showInkInFixed?: boolean;
    getContainer?: () => AnchorContainer;
    getCurrentAnchor?: () => string;
    onClick?: (e: React.MouseEvent<HTMLElement>, link: {
        title: React.ReactNode;
        href: string;
    }) => void;
    targetOffset?: number;
    onChange?: (currentActiveLink: string) => void;
}
export interface AnchorState {
    activeLink: null | string;
}
export interface AnchorDefaultProps extends AnchorProps {
    prefixCls: string;
    affix: boolean;
    showInkInFixed: boolean;
    getContainer: () => AnchorContainer;
}
export interface AntAnchor {
    registerLink: (link: string) => void;
    unregisterLink: (link: string) => void;
    activeLink: string | null;
    scrollTo: (link: string) => void;
    onClick?: (e: React.MouseEvent<HTMLElement>, link: {
        title: React.ReactNode;
        href: string;
    }) => void;
}
declare class Anchor extends React.Component<AnchorProps, AnchorState, ConfigConsumerProps> {
    static Link: typeof AnchorLink;
    static defaultProps: {
        affix: boolean;
        showInkInFixed: boolean;
    };
    static contextType: React.Context<ConfigConsumerProps>;
    state: {
        activeLink: null;
    };
    content: ConfigConsumerProps;
    private wrapperRef;
    private inkNode;
    private scrollContainer;
    private links;
    private scrollEvent;
    private animating;
    private prefixCls?;
    registerLink: (link: string) => void;
    unregisterLink: (link: string) => void;
    getContainer: () => any;
    componentDidMount(): void;
    componentDidUpdate(): void;
    componentWillUnmount(): void;
    getCurrentAnchor(offsetTop?: number, bounds?: number): string;
    handleScrollTo: (link: string) => void;
    saveInkNode: (node: HTMLSpanElement) => void;
    setCurrentActiveLink: (link: string) => void;
    handleScroll: () => void;
    updateInk: () => void;
    render: () => JSX.Element;
}
export default Anchor;