Mastodon link changer

mastodon_link_changer.user.js

// ==UserScript==
// @name         Link changer
// @namespace    https://github.com/Kjwon15/mastodon-link-change
// @updateURL    https://gist.githubusercontent.com/Kjwon15/33c6e32279bf3c40868db41741a24c0a/raw/mastodon_link_changer.user.js
// @version      0.2
// @description  Change link on mastodon
// @author       Kjwon15
// @match        https://*/web/*
// @grant        none
// ==/UserScript==


function patchLink() {
    document.addEventListener('click', (event) => {
        let target = event.target;
        while (target.parentNode) {
            if (target.nodeName === 'A') break;
            target = target.parentNode;
        }

        if (target === document) return;

        const url = new URL(target.href);
        switch (url.host) {
        case 'youtube.com':
        case 'youtu.be':
            url.host = 'invidio.us';
            break;
        case 'twitter.com':
        case 'mobile.twitter.com':
            url.host = 'nitter.net';
            break;
        default:
            return;
        }

        event.preventDefault();
        window.open(url.href);

    });
}

window.addEventListener('load', patchLink);