@adobe/coral-spectrum/coral-externals/polyfills/element.closest.js

Coral Spectrum is a JavaScript library of Web Components following Spectrum design patterns.

// Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/
// Source https://developer.mozilla.org/fr/docs/Web/API/Element/closest
(function () {
  if (!Element.prototype.matches)
    Element.prototype.matches = Element.prototype.msMatchesSelector ||
      Element.prototype.webkitMatchesSelector;

  if (!Element.prototype.closest)
    Element.prototype.closest = function (s) {
      var el = this;
      if (!document.documentElement.contains(el)) return null;
      do {
        if (el.matches(s)) return el;
        el = el.parentElement || el.parentNode;
      } while (el !== null && el.nodeType == 1);
      return null;
    };
})();