import * as React from 'react';
declare type ValueProps = {
    left: number;
    top: number;
    scrollLeft: number;
    scrollTop: number;
    scrollWidth: number;
    scrollHeight: number;
    clientWidth: number;
    clientHeight: number;
};
declare type ScrollbarEvent = MouseEvent & {
    target: HTMLDivElement;
};
declare type UpdateCallbackProps = (value: ValueProps) => void;
export declare type ScrollbarProps = {
    prefixCls?: string;
    style?: React.CSSProperties;
    className?: string;
    thumbSize?: number;
    thumbMinSize: number;
    autoHide: boolean;
    autoHideTimeout: number;
    onScroll?: (event: MouseEvent) => void;
    onScrollStart?: () => void;
    onScrollStop?: () => void;
    onScrollFrame?: (value: ValueProps) => void;
    onUpdate?: UpdateCallbackProps;
};
declare class Scrollbar extends React.PureComponent<Partial<ScrollbarProps>> {
    static defaultProps: {
        prefixCls: string;
        thumbMinSize: number;
        autoHide: boolean;
        autoHideTimeout: number;
    };
    scrolling: boolean;
    dragging: boolean;
    prevPageY?: number;
    prevPageX?: number;
    viewScrollLeft?: number;
    viewScrollTop?: number;
    lastViewScrollLeft?: number;
    lastViewScrollTop?: number;
    hideTracksTimeout: number;
    detectScrollingInterval: number;
    trackMouseOver?: boolean;
    requestFrame?: any;
    readonly containerRef: React.RefObject<HTMLDivElement>;
    readonly trackHorizontalRef: React.RefObject<HTMLDivElement>;
    readonly thumbHorizontalRef: React.RefObject<HTMLDivElement>;
    readonly trackVerticalRef: React.RefObject<HTMLDivElement>;
    readonly thumbVerticalRef: React.RefObject<HTMLDivElement>;
    readonly viewRef: React.RefObject<HTMLDivElement>;
    constructor(props: ScrollbarProps);
    componentDidMount(): void;
    componentDidUpdate(prevProps: ScrollbarProps): void;
    componentWillUnmount(): void;
    render(): JSX.Element;
    getScrollLeft: () => number;
    getScrollTop: () => number;
    getScrollWidth: () => number;
    getScrollHeight: () => number;
    getClientWidth: () => number;
    getClientHeight: () => number;
    getValues: () => {
        left: number;
        top: number;
        scrollLeft: number;
        scrollTop: number;
        scrollWidth: number;
        scrollHeight: number;
        clientWidth: number;
        clientHeight: number;
    };
    getThumbHorizontalWidth: () => number;
    getThumbVerticalHeight: () => number;
    getScrollLeftForOffset: (offset: number) => number;
    getScrollTopForOffset: (offset: number) => number;
    scrollLeft: (left?: number, duration?: number) => void;
    scrollTop: (top?: number, duration?: number) => void;
    scrollToLeft: () => void;
    scrollToTop: () => void;
    scrollToRight: () => void;
    scrollToBottom: () => void;
    addListeners: () => void;
    removeListeners: () => void;
    handleScroll: (event: MouseEvent) => void;
    handleScrollStart: () => void;
    handleScrollStartAutoHide: () => void;
    handleScrollStop: () => void;
    handleScrollStopAutoHide: () => void;
    handleWindowResize: () => void;
    handleHorizontalTrackMouseDown: (event: ScrollbarEvent) => void;
    handleVerticalTrackMouseDown: (event: ScrollbarEvent) => void;
    handleHorizontalThumbMouseDown: (event: ScrollbarEvent) => void;
    handleVerticalThumbMouseDown: (event: ScrollbarEvent) => void;
    setupDragging: () => void;
    teardownDragging: () => void;
    handleDragStart: (event: MouseEvent) => void;
    handleDrag: (event: MouseEvent) => boolean;
    handleDragEnd: () => void;
    handleDragEndAutoHide: () => void;
    handleTrackMouseEnter: () => void;
    handleTrackMouseEnterAutoHide: () => void;
    handleTrackMouseLeave: () => void;
    handleTrackMouseLeaveAutoHide: () => void;
    showTracks: () => void;
    hideTracks: () => void;
    detectScrolling: () => void;
    raf: (callback: VoidFunction) => void;
    update: (callback?: UpdateCallbackProps) => void;
    updateCallback: (callback?: UpdateCallbackProps) => void;
}
export default Scrollbar;