import { CommonEventFunction } from '@tarojs/components/types/common';
import React from 'react';
export type ScrollMetrics = {
    contentLength: number;
    dOffset: number;
    dt: number;
    offset: number;
    offsetX: number;
    offsetY: number;
    timestamp: number;
    velocity: number;
    visibleLength: number;
};
export type EventOnScrollToUpper = {
    distanceFromTop: number;
};
export type EventOnScrollToLower = {
    distanceFromEnd: number;
};
export type EventOnScroll = {
    detail: {
        scrollLeft: number;
        scrollTop: number;
        scrollHeight: number;
        scrollWidth: number;
        deltaX: number;
        deltaY: number;
    };
};
export interface ScrollViewState {
    snapScrollTop: number;
    snapScrollLeft: number;
}
export interface ScrollViewProps {
    className?: string;
    children?: React.ReactNode;
    style?: React.CSSProperties;
    showScrollbar?: boolean;
    scrollX?: boolean;
    scrollY?: boolean;
    bounces?: boolean;
    upperThreshold?: number;
    lowerThreshold?: number;
    scrollTop?: number;
    scrollLeft?: number;
    scrollWithAnimation?: boolean;
    enableBackToTop?: boolean;
    onScrollToUpper?: CommonEventFunction;
    onScrollToLower?: CommonEventFunction;
    onRefresherRefresh?: (finish: () => void) => void;
    onScroll?: CommonEventFunction;
}
export declare class HocScrollView extends React.Component<ScrollViewProps> {
    /**
     * 用于 scrollTo*
     * bug 由于pc端使用 出现只要使用ueditor 输入，scrollView 就会滚动到 目前 scrollTop 的位置 所以默认值为 undefined
     */
    _scrollTop?: number;
    _scrollLeft?: number;
    scrollTo: ({ x, y }: {
        x?: number;
        y?: number;
    }) => void;
    onScroll: (e: any) => void;
    scrollTop: number;
    scrollLeft: number;
    render(): JSX.Element;
}
export default HocScrollView;