import { MouseEvent } from 'react';
import { ButtonProps } from '@befe/brick-comp-button';
import { ConfiguredComponent } from '@befe/brick-core';
import { DownloadIframe, DownloadIframeProps } from './download-iframe';
export interface DownloadButtonProps extends DownloadIframeProps, ButtonProps {
    /**
     * 自定义 class
     */
    className?: string;
    /**
     * download 执行前的回调，根据返回值确定是否执行 download
     * - promise，当 promise resolve 后进行
     * - false，visible 不进行
     * - true | void，立即进行
     */
    beforeDownload?: ((e: MouseEvent<HTMLButtonElement>) => Promise<unknown> | boolean | void) | ((e: MouseEvent<HTMLAnchorElement>) => Promise<unknown> | boolean | void);
}
export declare class DownloadButton extends ConfiguredComponent<DownloadButtonProps> {
    static displayName: string;
    static defaultProps: {
        className: string;
    };
    refDownloadIframe: import("react").RefObject<DownloadIframe>;
    get className(): string;
    get size(): "sm" | "md" | "xs" | "lg" | "xl";
    get downloadIframeProps(): Pick<Readonly<DownloadButtonProps> & Readonly<{
        children?: import("react").ReactNode;
    }>, keyof DownloadButtonProps>;
    get buttonProps(): {
        size: "sm" | "md" | "xs" | "lg" | "xl";
        onClick: ((e: MouseEvent<HTMLButtonElement, globalThis.MouseEvent>) => void | Promise<unknown>) | ((e: MouseEvent<HTMLAnchorElement, globalThis.MouseEvent>) => void | Promise<unknown>) | undefined;
    };
    handleClick: (e: MouseEvent<HTMLButtonElement> & MouseEvent<HTMLAnchorElement>) => void;
    render(): import("react/jsx-runtime").JSX.Element;
}