import { MockMediaQueryList } from './mocks';
import type { MediaValues } from './types';
/**
 * Static class for working with the mocked media state.
 *
 * After calling `mockMatchMedia`, each MediaQueryList that is created via
 * `window.matchMedia` is enrolled in the static #observers array on this class.
 *
 * Values for the current media state are represented as a single object with
 * features as keys and their values, e.g. `{ width: '1000px' }`. When a value
 * is changed, those changes are evaluated to determine whether an observer
 * should be notified.
 */
export declare class MediaState {
    #private;
    /**
     * Given a media query, evaluates whether the current environment matches.
     */
    static evaluate(query: string): boolean;
    /**
     * Whenever a new MediaQueryList is created, parse its media query for
     * recognizable features, e.g. width, height, orientation, and format it
     * into the MediaQueryObserver shape in order to easily determine whether it
     * needs to be notified when a media value changes.
     */
    static observe: (mediaQueryList: MockMediaQueryList) => void;
    /**
     * Set media value(s) and notify all observers that are potentially subscribed
     * to changes in queried features.
     */
    static setValue: (values: MediaValues) => void;
    /**
     * Ultimately exported as `clearMedia`.
     */
    static reset: () => void;
}