githaven-fork/web_src/js/polyfills.js
silverwind fd094eea95 fix commit view JS features, reimplement folding (#9968)
* fix commit view JS features, reimplement folding

File content folding was not working so I reimplemented it in a saner
way. Then I noticed the issue was actually because of missing JS
libraries (seen on the console of every commit with error
'SimpleMDE is not defined').

Fixed the libraries. I think the reimplementation is worth to keep.

* add .closest polyfill

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2020-01-26 08:17:25 +00:00

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441 B
JavaScript

// compat: IE11
if (!Element.prototype.matches) {
Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;
}
// compat: IE11
if (!Element.prototype.closest) {
Element.prototype.closest = function (s) {
let el = this;
do {
if (el.matches(s)) return el;
el = el.parentElement || el.parentNode;
} while (el !== null && el.nodeType === 1);
return null;
};
}