import type { ReactiveController, ReactiveControllerHost } from 'lit';
import type { LightDismissOptions } from '../common/controllers/LightDismissController.js';
interface ModalControllerOptions {
    isOpen: LightDismissOptions['isOpen'];
    onDismiss: (trigger: Event) => void;
    close: (returnValue?: string, trigger?: Event) => void;
    isLightDismissEnabled: () => boolean;
    backdrop: () => HTMLElement;
    dialog: () => HTMLElement;
}
export declare class ModalController implements ReactiveController {
    private host;
    private static openModals;
    private scrollBar;
    private focusTrap;
    private lightDismiss;
    private events;
    private options;
    private trigger?;
    private lastButton?;
    constructor(host: ReactiveControllerHost & HTMLElement, options: ModalControllerOptions);
    hostConnected(): void;
    hostDisconnected(): void;
    block(): void;
    unblock(): void;
    /**
     * capture the last button clicked, so that we can polyfill `submitter` property in submit event
     */
    private trackLastButton;
    private polyfillSubmitter;
    private handleTransitionEnd;
    private handleLightDismiss;
    private handleSubmit;
}
export {};