import { LitElement } from 'lit';
import { Icon } from '@nvidia-elements/core/icon';
import { fileSizeValidator } from './dropzone.util';
declare const Dropzone_base: import("@nvidia-elements/forms/mixins").FormControlMixinReturn<typeof LitElement, File[]>;
/**
 * @element nve-dropzone
 * @description A dropzone form control that enables users to drag and drop files onto it.
 * @documentation https://nvidia.github.io/elements/docs/elements/dropzone/
 * @since 1.29.0
 * @entrypoint \@nvidia-elements/core/dropzone
 * @property {File[]} value - Files selected or dropped by the user. Assign files through the JavaScript property; the HTML `value` attribute is not supported.
 * @event change - Dispatched when the value has changed (files located in event.target)
 * @slot - Custom messaging that replaces the default upload instructions.
 * @cssprop --background
 * @cssprop --border-color
 * @cssprop --border-radius
 * @cssprop --padding
 * @cssprop --min-height
 * @cssprop --color
 * @slot icon - Custom icon that replaces the default upload icon.
 * @csspart icon - The upload icon element
 * @aria https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file
 */
export declare class Dropzone extends Dropzone_base {
    #private;
    /** Comma-separated file extensions or MIME types accepted by the dropzone. */
    accept: string;
    /** File size limit in bytes. */
    maxFileSize: number;
    /**
     * Enables internal string values to update for internationalization.
     */
    i18n: Partial<import("@nvidia-elements/core/internal").I18nStrings & {
        __set: boolean;
    }>;
    private fileInput;
    static styles: import("lit").CSSResult[];
    static readonly metadata: {
        tag: string;
        version: string;
        validators: (typeof fileSizeValidator)[];
        valueSchema: {
            type: 'array';
            items: {
                type: 'object';
                properties: {
                    name: {
                        type: 'string';
                    };
                    size: {
                        type: 'number';
                    };
                    type: {
                        type: 'string';
                    };
                };
            };
        };
    };
    static elementDefinitions: {
        [Icon.metadata.tag]: typeof Icon;
    };
    /** @protected */
    formResetCallback(): void;
    constructor();
    connectedCallback(): void;
    disconnectedCallback(): void;
    render(): import("lit").TemplateResult<1>;
}
export {};