import React, { ReactNode } from 'react';
export interface UploadProps {
    /**
     * @description.zh-CN 默认显示图片列表
     * @description.en-US default images
     */
    fileList?: BaseImageData[];
    /**
     * @description.zh-CN 文件列表改变后的回调
     * @description.en-US after image list change callback
     */
    onChange?: (imageList: BaseImageData[]) => void;
    /**
     * @description.zh-CN 点击每个文件后的回调
     * @description.en-US image click callback
     */
    onClick?: (image: BaseImageData) => void;
    /**
     * @description.zh-CN 删除图片后的回调
     * @description.en-US after remove image callback
     */
    onRemove?: (image: BaseImageData) => void;
    /**
     * @description.zh-CN 是否支持一次选择多个文件
     * @description.en-US support select multi files
     * @default true
     */
    multiple?: boolean;
    /**
     * @description.zh-CN 支持的文件后缀名
     * @description.en-US support file extensions
     * @default ['.jpg', '.jpeg', '.gif', '.png']
     */
    extensions?: string[];
    /**
     * @description.zh-CN 上传的图片不是合法的后缀名触发的回调
     * @description.en-US A callback triggered by an uploaded image is not a valid suffix
     */
    onOverExtensions?: (ext: string, extensions: string[]) => (void | 'continue' | 'break') | Promise<void | 'continue' | 'break'>;
    /**
     * @description.zh-CN 图片最大数量
     * @description.en-US max image counts
     * @default 10
     */
    maxCount?: number;
    /**
     * @description.zh-CN 上传的图片超过最大数量限制后的回调
     * @description.en-US A callback after the maximum number of images uploaded exceeds the limit
     */
    onOverCount?: (count: number, maxCount: number) => (void | false) | Promise<void | false>;
    /**
     * @description.zh-CN 图片最大的字节数
     * @description.en-US max byte count
     * @default 5242880
     */
    maxSize?: number;
    /**
     * @description.zh-CN 上传的图片大小超过限制后的回调
     * @description.en-US A callback after the size of an uploaded image exceeds the limit
     */
    onOverSize?: (size: number, maxSize: number) => (void | 'continue' | 'break') | Promise<void | 'continue' | 'break'>;
    /**
     * @description.zh-CN 在图片中显示错误信息
     * @description.en-US show an error message in the image
     */
    renderError?: (image: ImageData) => React.ReactNode;
    /**
     * @description.zh-CN 添加头部内容
     * @description.en-US add header content
     */
    header?: React.ReactNode;
    /**
     * @description.zh-CN 添加尾部内容
     * @description.en-US add footer content
     */
    footer?: React.ReactNode;
    name?: string;
    children?: ReactNode;
}
declare const defaultProps: {
    maxSize: number;
    maxCount: number;
    fileList: never[];
    extensions: string[];
    multiple: boolean;
};
export declare type MergedUploadProps = typeof defaultProps & UploadProps;
interface BaseImageData {
    url: string;
    name?: string;
}
declare enum ErrorType {
    OVER_COUNT = 0,
    OVER_SIZE = 1,
    OVER_EXTENSTIONS = 2,
    SERVER_ERROR = 3
}
interface ImageData extends BaseImageData {
    file?: File;
    errorCode?: keyof typeof ErrorType;
}
export interface UploadRef {
    imageList: ImageData[];
}
declare const Upload: React.ForwardRefExoticComponent<UploadProps & React.RefAttributes<UploadRef>>;
export default Upload;