import * as React from "react";
export declare type UploadFileStatus = "error" | "success" | "done" | "uploading" | "removed";
export interface HttpRequestHeader {
    [key: string]: string;
}
export interface RcFile extends File {
    uid: string;
    readonly lastModifiedDate: Date;
    readonly webkitRelativePath: string;
}
export interface RcCustomRequestOptions {
    onProgress: (event: {
        percent: number;
    }, file: File) => void;
    onError: (error: Error) => void;
    onSuccess: (response: object, file: File) => void;
    data: object;
    filename: string;
    file: File;
    withCredentials: boolean;
    action: string;
    headers: object;
}
export interface UploadFile<T = any> {
    uid: string;
    size?: number;
    name?: string;
    fileName?: string;
    lastModified?: number;
    lastModifiedDate?: Date;
    url?: string;
    status?: UploadFileStatus;
    percent?: number;
    thumbUrl?: string;
    originFileObj?: File | Blob;
    response?: T;
    error?: any;
    linkProps?: any;
    type?: string;
    xhr?: T;
    preview?: string;
}
export interface UploadChangeParam<T extends object = UploadFile> {
    file: T;
    fileList: Array<UploadFile>;
    event?: {
        percent: number;
    };
}
export interface ShowUploadListInterface {
    showRemoveIcon?: boolean;
    showPreviewIcon?: boolean;
    showDownloadIcon?: boolean;
}
export declare type UploadType = "drag" | "select";
export declare type UploadListType = "text" | "picture" | "picture-card";
export declare type PreviewFileHandler = (file: File | Blob) => PromiseLike<string>;
export declare type TransformFileHandler = (file: RcFile) => string | Blob | File | PromiseLike<string | Blob | File>;
export interface UploadProps {
    /**
     * 	上传类型 "drag" | "select"
     *
     * @default
     **/
    type?: UploadType;
    /**
     * 	发到后台的文件参数名
     *
     * @default 'file'
     **/
    name?: string;
    /**
     * 	默认已经上传的文件列表
     *
     * @default
     **/
    defaultFileList?: Array<UploadFile>;
    /**
     * 	已经上传的文件列表
     *
     * @default
     **/
    fileList?: Array<UploadFile>;
    /**
     * 	上传的地址
     *
     * @default
     **/
    action?: string | ((file: RcFile) => string) | ((file: RcFile) => PromiseLike<string>);
    /**
     * 	支持上传文件夹  https://caniuse.com/#feat=input-file-directory
     *
     * @default false
     **/
    directory?: boolean;
    /**
     * 	上传所需额外参数或返回上传额外参数的方法
     *
     * @default
     **/
    data?: object | ((file: UploadFile) => object);
    /**
     * 	上传请求的 http method
     *
     * @default 'post'
     **/
    method?: "POST" | "PUT" | "post" | "put";
    /**
     * 	设置上传的请求头部，IE10 以上有效
     *
     * @default
     **/
    headers?: HttpRequestHeader;
    /**
     * 	是否展示文件列表,
     * 可设为一个对象，用于单独设定
     * showPreviewIcon, showRemoveIcon, showDownloadIcon, removeIcon 和 downloadIcon
     *
     * @default true
     **/
    showUploadList?: boolean | ShowUploadListInterface;
    /**
     * 	是否支持多选文件，ie10+ 支持。开启后按住 ctrl 可选择多个文件
     *
     * @default false
     **/
    multiple?: boolean;
    /**
     * 	接受上传的文件类型
     * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#accept
     *
     * @default
     **/
    accept?: string;
    /**
     * 	上传文件之前的钩子，参数为上传的文件，若返回 false 则停止上传。
     * 支持返回一个 Promise 对象，
     * Promise 对象 reject 时则停止上传，
     * resolve 时开始上传（ resolve 传入 File 或 Blob 对象则上传 resolve 传入对象）。
     * 注意：IE9 不支持该方法。
     *
     * @default
     **/
    beforeUpload?: (file: RcFile, FileList: RcFile[]) => boolean | PromiseLike<void>;
    /**
     * 	上传文件改变时的状态
     *
     * @default
     **/
    onChange?: (info: UploadChangeParam) => void;
    /**
     * 	上传列表的内建样式，支持三种基本样式 text, picture 和 picture-card
     *
     * @default 'text'
     **/
    listType?: UploadListType;
    /**
     * 	自定义组件样式
     *
     * @default
     **/
    className?: string;
    /**
     * 	自定义组件id
     *
     * @default
     **/
    id?: string;
    /**
     * 	点击文件链接或预览图标时的回调
     *
     * @default
     **/
    onPreview?: (file: UploadFile) => void;
    /**
     * 	点击下载文件时的回调，如果没有指定，则默认跳转到文件 url 对应的标签页。
     *
     * @default
     **/
    onDownload?: (file: UploadFile) => void;
    /**
     * 	点击移除文件时的回调，返回值为 false 时不移除。支持返回一个 Promise 对象，Promise 对象 resolve(false) 或 reject 时不移除。
     *
     * @default
     **/
    onRemove?: (file: UploadFile) => void | boolean | Promise<void | boolean>;
    /**
     * 	服务端渲染时需要打开这个
     *
     * @default false
     **/
    supportServerRender?: boolean;
    /**
     * 	自定义样式
     *
     * @default
     **/
    style?: React.CSSProperties;
    /**
     * 	是否禁用
     *
     * @default false
     **/
    disabled?: boolean;
    /**
     * 	默认前缀
     *
     * @default 'lg'
     **/
    prefixCls?: string;
    /**
     * 	通过覆盖默认的上传行为，可以自定义自己的上传实现
     *
     * @default
     **/
    customRequest?: (options: RcCustomRequestOptions) => void;
    /**
     * 	上传请求时是否携带 cookie
     *
     * @default false
     **/
    withCredentials?: boolean;
    /**
     * 	点击打开文件对话框
     *
     * @default true
     **/
    openFileDialogOnClick?: boolean;
    /**
     * 	自定义文件预览逻辑
     *
     * @default
     **/
    previewFile?: PreviewFileHandler;
    /**
     * 	在上传之前转换文件。支持返回一个 Promise 对象
     *
     * @default
     **/
    transformFile?: TransformFileHandler;
    /**
     * 	自定义显示 icon
     *
     * @default
     **/
    iconRender?: (file: UploadFile, listType?: UploadListType) => React.ReactNode;
}
export interface UploadState {
    fileList: UploadFile[];
    dragState: string;
}
export interface UploadListProps {
    listType?: UploadListType;
    onPreview?: (file: UploadFile) => void;
    onDownload?: (file: UploadFile) => void;
    onRemove?: (file: UploadFile) => void | boolean;
    items?: Array<UploadFile>;
    progressAttr?: Object;
    prefixCls?: string;
    showRemoveIcon?: boolean;
    showDownloadIcon?: boolean;
    showPreviewIcon?: boolean;
    previewFile?: PreviewFileHandler;
    iconRender?: (file: UploadFile, listType?: UploadListType) => React.ReactNode;
}