42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
/**
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* @copyright Copyright (c) 2016 John Molakvoæ <skjnldsv@protonmail.com>
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*
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* @author John Molakvoæ <skjnldsv@protonmail.com>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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// https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
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if (!Element.prototype.matches) {
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Element.prototype.matches
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= Element.prototype.msMatchesSelector
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|| 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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let el = this
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do {
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if (el.matches(s)) return el
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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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