/// <reference types="react" />
/**
 * ---
 * category: utilities/react
 * ---
 * A decorator or higher order component that provides methods
 * for cross-origin communication (between iframes/windows).
 *
 * see https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage
 * @module windowMessageListener
 * @param {Function} messageHandler a handler for messages receieved by the component
 * @param {Function} validSource an optional function that would restrict message handling to a specified source.
 * @returns {Function} a function that decorates a React component with the behavior
 */
declare const windowMessageListener: (...args: unknown[]) => (ComposedComponent: import("react").ComponentClass<any, any>) => any;
/**
 * Return the origin of the owner window of the DOM element
 *
 * see https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage
 *
 * @param {DOMElement} node
 * @returns {String} the origin
 */
declare function origin(node: Element): string;
export default windowMessageListener;
export { origin, windowMessageListener };
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