Files F121621949

activeElement.js
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Created: Sat, Jul 12, 13:28

activeElement.js
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	import ownerDocument from './ownerDocument';
	/**
	* Returns the actively focused element safely.
	*
	* @param doc the document to check
	*/

	export default function activeElement(doc) {
	if (doc === void 0) {
	doc = ownerDocument();
	}

	// Support: IE 9 only
	// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
	try {
	var active = doc.activeElement; // IE11 returns a seemingly empty object in some cases when accessing
	// document.activeElement from an <iframe>

	if (!active \|\| !active.nodeName) return null;
	return active;
	} catch (e) {
	/* ie throws if no active element */
	return doc.body;
	}
	}

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