carbon-components
Version:
Carbon Components is a component library for IBM Cloud
43 lines (41 loc) • 1.31 kB
JavaScript
(function (global, factory) {
if (typeof define === "function" && define.amd) {
define(['exports'], factory);
} else if (typeof exports !== "undefined") {
factory(exports);
} else {
var mod = {
exports: {}
};
factory(mod.exports);
global.eventMatches = mod.exports;
}
})(this, function (exports) {
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = eventMatches;
/**
* @param {Event} event The event.
* @param {string} selector The selector.
* @returns {Element}
* The closest ancestor of the event target (or the event target itself) which matches the selectors given in parameter.
*/
function eventMatches(event, selector) {
var target = event.target,
currentTarget = event.currentTarget;
if (typeof target.matches === 'function') {
if (target.matches(selector)) {
// If event target itself matches the given selector, return it
return target;
} else if (target.matches(selector + ' *')) {
var closest = target.closest(selector);
if ((currentTarget.nodeType === Node.DOCUMENT_NODE ? currentTarget.documentElement : currentTarget).contains(closest)) {
return closest;
}
}
}
return undefined;
}
});