import * as React from 'react';
import { FileImagePreview } from '../../quarks';
import { InputChangeEvent, InputProps } from '../../common';
export declare type FileSelectChangeEvent = InputChangeEvent<Array<File>>;
export interface FileSelectOpenEvent {
    preventDefault(): void;
}
export interface FileSelectProps extends InputProps<Array<File>> {
    /**
     * Show preview instead of file list.
     */
    preview?: boolean;
    /**
     * Allow selecting multiple files.
     */
    multiple?: boolean;
    /**
     * The content of the fileselect.
     */
    children?: React.ReactNode;
    /**
     * Event fired when the file picker should be opened.
     */
    onOpen?(e: FileSelectOpenEvent): void;
}
export interface FileSelectState {
    value: Array<File>;
    error?: React.ReactChild;
    controlled: boolean;
    previews: Array<FileImagePreview>;
}
/**
 * A custom field for handling file selection.
 */
export declare const FileSelect: React.SFC<FileSelectProps>;