29 lines
1.0 KiB
JavaScript
29 lines
1.0 KiB
JavaScript
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// Polyfill for Element.closest that falls back to Element.matches that falls back to querySelectorAll
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// Created for blazy.js 1.8.1 - https://github.com/dinbror/blazy to ensure IE7+ support
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(function () {
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if (!Element.prototype.matches) {
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Element.prototype.matches =
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Element.prototype.matchesSelector ||
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Element.prototype.mozMatchesSelector ||
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Element.prototype.msMatchesSelector ||
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Element.prototype.oMatchesSelector ||
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Element.prototype.webkitMatchesSelector ||
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function(s) {
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var matches = (this.document || this.ownerDocument).querySelectorAll(s),
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i = matches.length;
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while (--i >= 0 && matches.item(i) !== this) {}
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return i > -1;
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};
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}
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if (!Element.prototype.closest) {
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Element.prototype.closest = Element.prototype.closest ||
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function(selector) {
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var element = this;
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while (element.matches && !element.matches(selector)) element = element.parentNode;
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return element.matches ? element : null;
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};
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}
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})();
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