import React from 'react';
import { ListenerEventHandler } from '../utils/addEventListener';
import { getOffset } from '../utils/get';
export interface GetFixedStateParams {
    positionInfo: OffsetInfo;
    scrollTop: number;
    offsetTop: number;
}
export interface AffixProps {
    children: React.ReactElement | React.ReactElement[];
    renderAffix?: () => React.ReactElement;
    className?: string;
    fadeEffect?: boolean;
    allWidth?: boolean;
    offsetTop?: number;
    onChange?: (status: boolean) => void;
    onScroll?: (params: OffsetInfo & {
        scrollTop: number;
        isFixed: boolean;
    }) => void;
    getFixedStatus?: ({ positionInfo, scrollTop, offsetTop }: GetFixedStateParams) => boolean;
}
interface AffixStates {
    visible: boolean;
    top: string;
    left: string;
    width: string;
}
declare type OffsetInfo = ReturnType<typeof getOffset>;
export default class Affix extends React.Component<AffixProps, AffixStates> {
    prefixCls: string;
    scrollHandler: ListenerEventHandler;
    isFixed: boolean;
    wrapRef: React.RefObject<HTMLDivElement>;
    customRef: React.RefObject<HTMLDivElement>;
    static defaultProps: {
        offsetTop: number;
        allWidth: boolean;
        onChange: () => void;
        getFixedStatus: ({ positionInfo, scrollTop, offsetTop }: GetFixedStateParams) => boolean;
    };
    constructor(props: AffixProps);
    componentDidMount(): void;
    componentWillUnmount(): void;
    onHandlerScroll: () => void;
    renderContent(): JSX.Element;
    render(): JSX.Element;
}
export {};