import { LitElement } from 'lit';
import '@umbraco-ui/uui-symbol-file-dropzone/lib';
export interface UUIFileFolder {
    folderName: string;
    folders: UUIFileFolder[];
    files: File[];
}
declare const UUIFileDropzoneElement_base: (new (...args: any[]) => import("@umbraco-ui/uui-base/lib/mixins").UUILabelMixinInterface) & typeof LitElement;
/**
 * @element uui-file-dropzone
 *  @fires {UUIFileDropzoneEvent} change - fires when a file has been selected.
 *  @fires {UUIFileDropzoneEvent} reject - fires when files are rejected due to not matching the accept attribute.
 *  @slot - For the content of the dropzone
 *  @description - Dropzone for file upload. Supports native browsing and drag n drop.
 */
export declare class UUIFileDropzoneElement extends UUIFileDropzoneElement_base {
    private _input;
    private _dropzone;
    private _acceptedFileExtensions;
    private _acceptedMimeTypes;
    private _accept;
    /**
     * Comma-separated list of accepted mime types or file extensions (denoted with a `.`).
     * If this is left empty, it will allow all types.
     *
     * @type {string}
     * @attr
     * @examples [
     *   "image/*,application/pdf",
     *   ".gif,.png,.jpg,.jpeg,.pdf",
     * ]
     */
    set accept(value: string);
    get accept(): string;
    disallowFolderUpload: boolean;
    /**
     * Allows for multiple files to be selected.
     * @type {boolean}
     * @attr
     * @default false
     */
    multiple: boolean;
    /**
     * Opens the native file picker to select a file.
     * @method browse
     */
    browse(): void;
    constructor();
    /**
     * Check if folder upload should be processed based on component settings.
     * @returns true if folder upload is allowed and multiple files are enabled
     */
    private _shouldProcessFolder;
    private _getAllEntries;
    private _processRootEntries;
    /**
     * Get the filesystem entry (file or directory) from a DataTransferItem.
     * @remark Supports both WebKit and non-WebKit browsers.
     */
    private _getEntry;
    private _processEntries;
    private _readAllEntries;
    private _mkdir;
    private _isAccepted;
    private _getAsFile;
    private _onDrop;
    private _onDragOver;
    private _onDragEnter;
    private _onDragLeave;
    private _onFileInputChange;
    render(): import("lit").TemplateResult<1>;
    static styles: import("lit").CSSResult[];
}
declare global {
    interface HTMLElementTagNameMap {
        'uui-file-dropzone': UUIFileDropzoneElement;
    }
}
export {};