getWindowOf.js 601 Bytes
import global from '../shims/global.js';

/**
 * Returns the global object associated with provided element.
 *
 * @param {Object} target
 * @returns {Object}
 */
export default target => {
    // Assume that the element is an instance of Node, which means that it
    // has the "ownerDocument" property from which we can retrieve a
    // corresponding global object.
    const ownerGlobal = target && target.ownerDocument && target.ownerDocument.defaultView;

    // Return the local global object if it's not possible extract one from
    // provided element.
    return ownerGlobal || global;
};