Keyboard shortcuts for google and youtube

keyboard_shortcuts.js

// ==UserScript==
// @name         Keyboard shortcuts for google and youtube
// @version      0.1
// @description  Adds shortcuts for google and youtube
// @author       Mordo95
// @match        *://*/*
// @icon         https://www.google.com/s2/favicons?domain=google.nl
// @grant        none
// ==/UserScript==

// Made for: https://www.reddit.com/r/userscripts/comments/p5imfo/how_do_you_create_a_userscript_that_clicks_a/

(function() {
    'use strict';

    function clickElement(selector) {
        let el = document.querySelector(selector);
        if (el)
            el.click();
    }
    function focusElement(selector) {
        let elements = document.querySelectorAll(selector);
        for (let el of elements) {
            el.focus();
            if (el.tagName === "INPUT")
                el.setSelectionRange(el.value.length, el.value.length);
        }
    }

    if (/:\/\/.*(?:google|youtube)\..*\//.test(window.location.href)) {
        document.addEventListener("keydown", (e) => {
            if (e.ctrlKey && e.code === "ArrowRight")
                clickElement("#pnnext");
            if (e.ctrlKey && e.code === "ArrowLeft")
                clickElement("#pnprev");
            if (e.ctrlKey && e.code === "Space") {
                focusElement("[name=q],[name=search_query]");
            }
        });
    }
})();