import React from 'react';
import { ScrollBarProps, ScrollBarState } from './VirtualList.types';
export declare class ScrollBar extends React.Component<ScrollBarProps, ScrollBarState> {
    moveRaf: number;
    scrollbarRef: React.RefObject<HTMLDivElement>;
    thumbRef: React.RefObject<HTMLDivElement>;
    visibleTimeout: ReturnType<typeof setTimeout>;
    state: ScrollBarState;
    componentDidMount(): void;
    componentDidUpdate(prevProps: ScrollBarProps): void;
    componentWillUnmount(): void;
    delayHidden: () => void;
    onScrollbarTouchStart: (e: TouchEvent) => void;
    onContainerMouseDown: React.MouseEventHandler;
    patchEvents: () => void;
    removeEvents: () => void;
    onMouseDown: (e: React.MouseEvent | TouchEvent) => void;
    onMouseMove: (e: MouseEvent | TouchEvent) => void;
    onMouseUp: () => void;
    getSpinHeight: () => number;
    getEnableScrollRange: () => number;
    getEnableHeightRange: () => number;
    getTop: () => number;
    showScroll: () => boolean;
    render(): React.JSX.Element;
}