43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
/**
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* File primary-navigation.js.
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*
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* Required to open and close the mobile navigation.
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*/
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/**
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* Polyfill for Element.closest() because we need to support IE11.
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*
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* @see https://developer.mozilla.org/en-US/docs/Web/API/Element/closest
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*/
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if ( ! Element.prototype.matches ) {
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Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;
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}
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if ( ! Element.prototype.closest ) {
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Element.prototype.closest = function( s ) {
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var el = this;
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do {
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if ( Element.prototype.matches.call( el, s ) ) {
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return el;
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}
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el = el.parentElement || el.parentNode;
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} while ( el !== null && el.nodeType === 1 );
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return null;
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};
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}
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/**
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* Polyfill for NodeList.foreach() because we need to support IE11.
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*
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* @see https://developer.mozilla.org/en-US/docs/Web/API/NodeList/forEach
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*/
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if ( window.NodeList && ! NodeList.prototype.forEach ) {
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NodeList.prototype.forEach = function( callback, thisArg ) {
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var i;
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thisArg = thisArg || window;
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for ( i = 0; i < this.length; i++ ) {
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callback.call( thisArg, this[i], i, this );
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}
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};
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}
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