forked from mozilla/multi-account-containers
-
Notifications
You must be signed in to change notification settings - Fork 0
/
utils.js
23 lines (20 loc) · 710 Bytes
/
utils.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
const DEFAULT_FAVICON = "moz-icon://goat?size=16";
// TODO use export here instead of globals
window.Utils = {
createFavIconElement(url) {
const imageElement = document.createElement("img");
imageElement.classList.add("icon", "offpage");
imageElement.src = url;
const loadListener = (e) => {
e.target.classList.remove("offpage");
e.target.removeEventListener("load", loadListener);
e.target.removeEventListener("error", errorListener);
};
const errorListener = (e) => {
e.target.src = DEFAULT_FAVICON;
};
imageElement.addEventListener("error", errorListener);
imageElement.addEventListener("load", loadListener);
return imageElement;
}
};