import type { FunctionComponent } from 'react';
import { ChatbotDisplayMode } from '../Chatbot';
import { Accept, DropEvent, FileError, FileRejection } from 'react-dropzone';
export interface FileDropZoneProps {
    /** Content displayed when the drop zone is not currently in use */
    children?: React.ReactNode;
    /** Custom classname for the outer dropzone component */
    className?: string;
    /** Informational text that shows below the title in the drop zone */
    infoText?: string;
    /** When files are dropped or uploaded this callback will be called with all accepted files */
    onFileDrop: (event: DropEvent, data: File[]) => void;
    /** Specifies the file types accepted by the attachment upload component.
     *  Files that don't match the accepted types will be disabled in the file picker.
     *  For example,
     *   allowedFileTypes: { 'application/json': ['.json'], 'text/plain': ['.txt'] }
     **/
    allowedFileTypes?: Accept;
    /** Display mode for the Chatbot parent; this influences the styles applied */
    displayMode?: ChatbotDisplayMode;
    /** Minimum file size allowed */
    minSize?: number;
    /** Max file size allowed */
    maxSize?: number;
    /** Max number of files allowed */
    maxFiles?: number;
    /** Whether attachments are disabled */
    isAttachmentDisabled?: boolean;
    /** Callback when file(s) are attached */
    onAttach?: <T extends File>(acceptedFiles: T[], fileRejections: FileRejection[], event: DropEvent) => void;
    /** Callback function for AttachButton when an attachment fails */
    onAttachRejected?: (fileRejections: FileRejection[], event: DropEvent) => void;
    /** Validator for files; see https://react-dropzone.js.org/#!/Custom%20validation for more information */
    validator?: <T extends File>(file: T) => FileError | readonly FileError[] | null;
}
declare const FileDropZone: FunctionComponent<FileDropZoneProps>;
export default FileDropZone;