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Google Navigation

Navigate through Google Search with a set of hotkeys.

Versión del día 23/10/2021. Echa un vistazo a la versión más reciente.

Tendrás que instalar una extensión para tu navegador como Tampermonkey, Greasemonkey o Violentmonkey si quieres utilizar este script.

Necesitarás instalar una extensión como Tampermonkey o Violentmonkey para instalar este script.

Necesitarás instalar una extensión como Tampermonkey o Violentmonkey para instalar este script.

Necesitarás instalar una extensión como Tampermonkey o Userscripts para instalar este script.

Necesitará instalar una extensión como Tampermonkey para instalar este script.

Necesitarás instalar una extensión para administrar scripts de usuario si quieres instalar este script.

(Ya tengo un administrador de scripts de usuario, déjame instalarlo)

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

(Ya tengo un administrador de estilos de usuario, déjame instalarlo)

// ==UserScript==
// @name        Google Navigation
// @namespace   veringsek
// @match       http://*.google.com/search*
// @match       http://*.google.ad/search*
// @match       http://*.google.ae/search*
// @match       http://*.google.com.af/search*
// @match       http://*.google.com.ag/search*
// @match       http://*.google.com.ai/search*
// @match       http://*.google.al/search*
// @match       http://*.google.am/search*
// @match       http://*.google.co.ao/search*
// @match       http://*.google.com.ar/search*
// @match       http://*.google.as/search*
// @match       http://*.google.at/search*
// @match       http://*.google.com.au/search*
// @match       http://*.google.az/search*
// @match       http://*.google.ba/search*
// @match       http://*.google.com.bd/search*
// @match       http://*.google.be/search*
// @match       http://*.google.bf/search*
// @match       http://*.google.bg/search*
// @match       http://*.google.com.bh/search*
// @match       http://*.google.bi/search*
// @match       http://*.google.bj/search*
// @match       http://*.google.com.bn/search*
// @match       http://*.google.com.bo/search*
// @match       http://*.google.com.br/search*
// @match       http://*.google.bs/search*
// @match       http://*.google.bt/search*
// @match       http://*.google.co.bw/search*
// @match       http://*.google.by/search*
// @match       http://*.google.com.bz/search*
// @match       http://*.google.ca/search*
// @match       http://*.google.cd/search*
// @match       http://*.google.cf/search*
// @match       http://*.google.cg/search*
// @match       http://*.google.ch/search*
// @match       http://*.google.ci/search*
// @match       http://*.google.co.ck/search*
// @match       http://*.google.cl/search*
// @match       http://*.google.cm/search*
// @match       http://*.google.cn/search*
// @match       http://*.google.com.co/search*
// @match       http://*.google.co.cr/search*
// @match       http://*.google.com.cu/search*
// @match       http://*.google.cv/search*
// @match       http://*.google.com.cy/search*
// @match       http://*.google.cz/search*
// @match       http://*.google.de/search*
// @match       http://*.google.dj/search*
// @match       http://*.google.dk/search*
// @match       http://*.google.dm/search*
// @match       http://*.google.com.do/search*
// @match       http://*.google.dz/search*
// @match       http://*.google.com.ec/search*
// @match       http://*.google.ee/search*
// @match       http://*.google.com.eg/search*
// @match       http://*.google.es/search*
// @match       http://*.google.com.et/search*
// @match       http://*.google.fi/search*
// @match       http://*.google.com.fj/search*
// @match       http://*.google.fm/search*
// @match       http://*.google.fr/search*
// @match       http://*.google.ga/search*
// @match       http://*.google.ge/search*
// @match       http://*.google.gg/search*
// @match       http://*.google.com.gh/search*
// @match       http://*.google.com.gi/search*
// @match       http://*.google.gl/search*
// @match       http://*.google.gm/search*
// @match       http://*.google.gr/search*
// @match       http://*.google.com.gt/search*
// @match       http://*.google.gy/search*
// @match       http://*.google.com.hk/search*
// @match       http://*.google.hn/search*
// @match       http://*.google.hr/search*
// @match       http://*.google.ht/search*
// @match       http://*.google.hu/search*
// @match       http://*.google.co.id/search*
// @match       http://*.google.ie/search*
// @match       http://*.google.co.il/search*
// @match       http://*.google.im/search*
// @match       http://*.google.co.in/search*
// @match       http://*.google.iq/search*
// @match       http://*.google.is/search*
// @match       http://*.google.it/search*
// @match       http://*.google.je/search*
// @match       http://*.google.com.jm/search*
// @match       http://*.google.jo/search*
// @match       http://*.google.co.jp/search*
// @match       http://*.google.co.ke/search*
// @match       http://*.google.com.kh/search*
// @match       http://*.google.ki/search*
// @match       http://*.google.kg/search*
// @match       http://*.google.co.kr/search*
// @match       http://*.google.com.kw/search*
// @match       http://*.google.kz/search*
// @match       http://*.google.la/search*
// @match       http://*.google.com.lb/search*
// @match       http://*.google.li/search*
// @match       http://*.google.lk/search*
// @match       http://*.google.co.ls/search*
// @match       http://*.google.lt/search*
// @match       http://*.google.lu/search*
// @match       http://*.google.lv/search*
// @match       http://*.google.com.ly/search*
// @match       http://*.google.co.ma/search*
// @match       http://*.google.md/search*
// @match       http://*.google.me/search*
// @match       http://*.google.mg/search*
// @match       http://*.google.mk/search*
// @match       http://*.google.ml/search*
// @match       http://*.google.com.mm/search*
// @match       http://*.google.mn/search*
// @match       http://*.google.ms/search*
// @match       http://*.google.com.mt/search*
// @match       http://*.google.mu/search*
// @match       http://*.google.mv/search*
// @match       http://*.google.mw/search*
// @match       http://*.google.com.mx/search*
// @match       http://*.google.com.my/search*
// @match       http://*.google.co.mz/search*
// @match       http://*.google.com.na/search*
// @match       http://*.google.com.ng/search*
// @match       http://*.google.com.ni/search*
// @match       http://*.google.ne/search*
// @match       http://*.google.nl/search*
// @match       http://*.google.no/search*
// @match       http://*.google.com.np/search*
// @match       http://*.google.nr/search*
// @match       http://*.google.nu/search*
// @match       http://*.google.co.nz/search*
// @match       http://*.google.com.om/search*
// @match       http://*.google.com.pa/search*
// @match       http://*.google.com.pe/search*
// @match       http://*.google.com.pg/search*
// @match       http://*.google.com.ph/search*
// @match       http://*.google.com.pk/search*
// @match       http://*.google.pl/search*
// @match       http://*.google.pn/search*
// @match       http://*.google.com.pr/search*
// @match       http://*.google.ps/search*
// @match       http://*.google.pt/search*
// @match       http://*.google.com.py/search*
// @match       http://*.google.com.qa/search*
// @match       http://*.google.ro/search*
// @match       http://*.google.ru/search*
// @match       http://*.google.rw/search*
// @match       http://*.google.com.sa/search*
// @match       http://*.google.com.sb/search*
// @match       http://*.google.sc/search*
// @match       http://*.google.se/search*
// @match       http://*.google.com.sg/search*
// @match       http://*.google.sh/search*
// @match       http://*.google.si/search*
// @match       http://*.google.sk/search*
// @match       http://*.google.com.sl/search*
// @match       http://*.google.sn/search*
// @match       http://*.google.so/search*
// @match       http://*.google.sm/search*
// @match       http://*.google.sr/search*
// @match       http://*.google.st/search*
// @match       http://*.google.com.sv/search*
// @match       http://*.google.td/search*
// @match       http://*.google.tg/search*
// @match       http://*.google.co.th/search*
// @match       http://*.google.com.tj/search*
// @match       http://*.google.tl/search*
// @match       http://*.google.tm/search*
// @match       http://*.google.tn/search*
// @match       http://*.google.to/search*
// @match       http://*.google.com.tr/search*
// @match       http://*.google.tt/search*
// @match       http://*.google.com.tw/search*
// @match       http://*.google.co.tz/search*
// @match       http://*.google.com.ua/search*
// @match       http://*.google.co.ug/search*
// @match       http://*.google.co.uk/search*
// @match       http://*.google.com.uy/search*
// @match       http://*.google.co.uz/search*
// @match       http://*.google.com.vc/search*
// @match       http://*.google.co.ve/search*
// @match       http://*.google.vg/search*
// @match       http://*.google.co.vi/search*
// @match       http://*.google.com.vn/search*
// @match       http://*.google.vu/search*
// @match       http://*.google.ws/search*
// @match       http://*.google.rs/search*
// @match       http://*.google.co.za/search*
// @match       http://*.google.co.zm/search*
// @match       http://*.google.co.zw/search*
// @match       http://*.google.cat/search*
// @match       https://*.google.com/search*
// @match       https://*.google.ad/search*
// @match       https://*.google.ae/search*
// @match       https://*.google.com.af/search*
// @match       https://*.google.com.ag/search*
// @match       https://*.google.com.ai/search*
// @match       https://*.google.al/search*
// @match       https://*.google.am/search*
// @match       https://*.google.co.ao/search*
// @match       https://*.google.com.ar/search*
// @match       https://*.google.as/search*
// @match       https://*.google.at/search*
// @match       https://*.google.com.au/search*
// @match       https://*.google.az/search*
// @match       https://*.google.ba/search*
// @match       https://*.google.com.bd/search*
// @match       https://*.google.be/search*
// @match       https://*.google.bf/search*
// @match       https://*.google.bg/search*
// @match       https://*.google.com.bh/search*
// @match       https://*.google.bi/search*
// @match       https://*.google.bj/search*
// @match       https://*.google.com.bn/search*
// @match       https://*.google.com.bo/search*
// @match       https://*.google.com.br/search*
// @match       https://*.google.bs/search*
// @match       https://*.google.bt/search*
// @match       https://*.google.co.bw/search*
// @match       https://*.google.by/search*
// @match       https://*.google.com.bz/search*
// @match       https://*.google.ca/search*
// @match       https://*.google.cd/search*
// @match       https://*.google.cf/search*
// @match       https://*.google.cg/search*
// @match       https://*.google.ch/search*
// @match       https://*.google.ci/search*
// @match       https://*.google.co.ck/search*
// @match       https://*.google.cl/search*
// @match       https://*.google.cm/search*
// @match       https://*.google.cn/search*
// @match       https://*.google.com.co/search*
// @match       https://*.google.co.cr/search*
// @match       https://*.google.com.cu/search*
// @match       https://*.google.cv/search*
// @match       https://*.google.com.cy/search*
// @match       https://*.google.cz/search*
// @match       https://*.google.de/search*
// @match       https://*.google.dj/search*
// @match       https://*.google.dk/search*
// @match       https://*.google.dm/search*
// @match       https://*.google.com.do/search*
// @match       https://*.google.dz/search*
// @match       https://*.google.com.ec/search*
// @match       https://*.google.ee/search*
// @match       https://*.google.com.eg/search*
// @match       https://*.google.es/search*
// @match       https://*.google.com.et/search*
// @match       https://*.google.fi/search*
// @match       https://*.google.com.fj/search*
// @match       https://*.google.fm/search*
// @match       https://*.google.fr/search*
// @match       https://*.google.ga/search*
// @match       https://*.google.ge/search*
// @match       https://*.google.gg/search*
// @match       https://*.google.com.gh/search*
// @match       https://*.google.com.gi/search*
// @match       https://*.google.gl/search*
// @match       https://*.google.gm/search*
// @match       https://*.google.gr/search*
// @match       https://*.google.com.gt/search*
// @match       https://*.google.gy/search*
// @match       https://*.google.com.hk/search*
// @match       https://*.google.hn/search*
// @match       https://*.google.hr/search*
// @match       https://*.google.ht/search*
// @match       https://*.google.hu/search*
// @match       https://*.google.co.id/search*
// @match       https://*.google.ie/search*
// @match       https://*.google.co.il/search*
// @match       https://*.google.im/search*
// @match       https://*.google.co.in/search*
// @match       https://*.google.iq/search*
// @match       https://*.google.is/search*
// @match       https://*.google.it/search*
// @match       https://*.google.je/search*
// @match       https://*.google.com.jm/search*
// @match       https://*.google.jo/search*
// @match       https://*.google.co.jp/search*
// @match       https://*.google.co.ke/search*
// @match       https://*.google.com.kh/search*
// @match       https://*.google.ki/search*
// @match       https://*.google.kg/search*
// @match       https://*.google.co.kr/search*
// @match       https://*.google.com.kw/search*
// @match       https://*.google.kz/search*
// @match       https://*.google.la/search*
// @match       https://*.google.com.lb/search*
// @match       https://*.google.li/search*
// @match       https://*.google.lk/search*
// @match       https://*.google.co.ls/search*
// @match       https://*.google.lt/search*
// @match       https://*.google.lu/search*
// @match       https://*.google.lv/search*
// @match       https://*.google.com.ly/search*
// @match       https://*.google.co.ma/search*
// @match       https://*.google.md/search*
// @match       https://*.google.me/search*
// @match       https://*.google.mg/search*
// @match       https://*.google.mk/search*
// @match       https://*.google.ml/search*
// @match       https://*.google.com.mm/search*
// @match       https://*.google.mn/search*
// @match       https://*.google.ms/search*
// @match       https://*.google.com.mt/search*
// @match       https://*.google.mu/search*
// @match       https://*.google.mv/search*
// @match       https://*.google.mw/search*
// @match       https://*.google.com.mx/search*
// @match       https://*.google.com.my/search*
// @match       https://*.google.co.mz/search*
// @match       https://*.google.com.na/search*
// @match       https://*.google.com.ng/search*
// @match       https://*.google.com.ni/search*
// @match       https://*.google.ne/search*
// @match       https://*.google.nl/search*
// @match       https://*.google.no/search*
// @match       https://*.google.com.np/search*
// @match       https://*.google.nr/search*
// @match       https://*.google.nu/search*
// @match       https://*.google.co.nz/search*
// @match       https://*.google.com.om/search*
// @match       https://*.google.com.pa/search*
// @match       https://*.google.com.pe/search*
// @match       https://*.google.com.pg/search*
// @match       https://*.google.com.ph/search*
// @match       https://*.google.com.pk/search*
// @match       https://*.google.pl/search*
// @match       https://*.google.pn/search*
// @match       https://*.google.com.pr/search*
// @match       https://*.google.ps/search*
// @match       https://*.google.pt/search*
// @match       https://*.google.com.py/search*
// @match       https://*.google.com.qa/search*
// @match       https://*.google.ro/search*
// @match       https://*.google.ru/search*
// @match       https://*.google.rw/search*
// @match       https://*.google.com.sa/search*
// @match       https://*.google.com.sb/search*
// @match       https://*.google.sc/search*
// @match       https://*.google.se/search*
// @match       https://*.google.com.sg/search*
// @match       https://*.google.sh/search*
// @match       https://*.google.si/search*
// @match       https://*.google.sk/search*
// @match       https://*.google.com.sl/search*
// @match       https://*.google.sn/search*
// @match       https://*.google.so/search*
// @match       https://*.google.sm/search*
// @match       https://*.google.sr/search*
// @match       https://*.google.st/search*
// @match       https://*.google.com.sv/search*
// @match       https://*.google.td/search*
// @match       https://*.google.tg/search*
// @match       https://*.google.co.th/search*
// @match       https://*.google.com.tj/search*
// @match       https://*.google.tl/search*
// @match       https://*.google.tm/search*
// @match       https://*.google.tn/search*
// @match       https://*.google.to/search*
// @match       https://*.google.com.tr/search*
// @match       https://*.google.tt/search*
// @match       https://*.google.com.tw/search*
// @match       https://*.google.co.tz/search*
// @match       https://*.google.com.ua/search*
// @match       https://*.google.co.ug/search*
// @match       https://*.google.co.uk/search*
// @match       https://*.google.com.uy/search*
// @match       https://*.google.co.uz/search*
// @match       https://*.google.com.vc/search*
// @match       https://*.google.co.ve/search*
// @match       https://*.google.vg/search*
// @match       https://*.google.co.vi/search*
// @match       https://*.google.com.vn/search*
// @match       https://*.google.vu/search*
// @match       https://*.google.ws/search*
// @match       https://*.google.rs/search*
// @match       https://*.google.co.za/search*
// @match       https://*.google.co.zm/search*
// @match       https://*.google.co.zw/search*
// @match       https://*.google.cat/search*
// @grant       none
// @version     0.2.0
// @author      veringsek
// @description Navigate through Google Search with a set of hotkeys. 
// ==/UserScript==

(function () {
    let css = document.createElement('style');
    css.type = 'text/css';
    css.innerText = `
        :root {
            --google-navigation--button-size: 30px;
            --google-navigation--stroke-color: black;
            --google-navigation--background-color: white;
            --google-navigation--button-opacity: 1;
        }
        
        .google-navigation--button {
            position: absolute;
            left: calc(-5 / 3 * var(--google-navigation--button-size));
            border: 2px var(--google-navigation--stroke-color) solid;
            border-radius: 5px;
            background: var(--google-navigation--background-color);
            box-shadow: 0px 2px var(--google-navigation--stroke-color);
            color: var(--google-navigation--stroke-color) !important;
            opacity: var(--google-navigation--button-opacity);
            text-decoration: none !important;
            width: var(--google-navigation--button-size);
            height: var(--google-navigation--button-size);
            line-height: var(--google-navigation--button-size);
            text-align: center;
            font-size: calc(2 / 3 * var(--google-navigation--button-size));
            user-select: none;
            transition: all 0.1s linear;
        
            animation: spawn 0.2s;
        }
        
        .google-navigation--button.keydown {
            transform: scale(0.8);
        }
        
        .google-navigation--switch {
            opacity: 0;
        }
        
        .google-navigation--switch.keydown {
            opacity: 1;
        }
        
        @keyframes spawn {
            from {
                transform: scale(0);
            }
        }
    `;
    document.head.appendChild(css);
})();

let timeStart = Date.now();
console.log(`Google Navigation start at ${new Date()}`);

let GoogleNavigation = {};
GoogleNavigation.GN_KEYDOWN_TIMER_DURATION = 1000;
GoogleNavigation.GN_KEYDOWN_TIMER_CANCELED = 'GN_KEYDOWN_TIMER_CANCELED';
GoogleNavigation.GN_KEYPRESS_SENSITIVITY = 500;
GoogleNavigation.GN_KEYPRESS_CANCELED = 'GN_KEYPRESS_CANCELED';
GoogleNavigation.GN_BUTTON_SIZE = 30;
GoogleNavigation.GN_BUTTON_SIZE_HALF = GoogleNavigation.GN_BUTTON_SIZE / 2;
GoogleNavigation.keydowns = new Set();
GoogleNavigation.tmrKeydown = undefined;
globalThis.GoogleNavigation = GoogleNavigation;

function setCSSVars() {
    document.documentElement.style.setProperty(
        '--google-navigation--button-size',
        `${globalThis.GoogleNavigation.GN_BUTTON_SIZE}px`
    );
    document.documentElement.style.setProperty(
        '--google-navigation--stroke-color',
        globalThis.getComputedStyle(document.body)['color']
    );
    document.documentElement.style.setProperty(
        '--google-navigation--background-color',
        globalThis.getComputedStyle(document.body)['backgroundColor']
    );
}

function makeTemplate() {
    let template = document.createElement('a');
    template.classList.add('google-navigation--button');
    template.commandKeydown = function () {
        this.classList.add('keydown');
        let documentElement = document.documentElement;
        documentElement.scroll({
            top: this.getBoundingClientRect().top + documentElement.scrollTop - window.innerHeight / 2,
            behavior: 'smooth'
        });
        globalThis.GoogleNavigation.tmrKeydown = globalThis.setTimeout(() => {
            globalThis.clearTimeout(globalThis.GoogleNavigation.tmrKeydown);
            globalThis.GoogleNavigation.tmrKeydown = globalThis.GoogleNavigation.GN_KEYDOWN_TIMER_CANCELED;
            this.classList.remove('keydown');
            this.commandCancel();
        }, globalThis.GoogleNavigation.GN_KEYDOWN_TIMER_DURATION);
    };
    template.commandKeyup = function () {
        this.classList.remove('keydown');
        this.commandPress();
    };
    template.commandPress = function () {
        if (document.getElementById('google-navigation--switch-Control').keydown) {
            window.open(this.link, '_blank');
        } else {
            window.open(this.link, '_self');
        }
    };
    template.commandCancel = function () {
        return;
    };
    globalThis.GoogleNavigation.buttonTemplate = template;
}

function getClonedButton(key, link) {
    let string = key;
    if (Array.isArray(key)) {
        [key, string] = key;
    }
    let cloned = globalThis.GoogleNavigation.buttonTemplate.cloneNode();
    cloned.commandKeydown = globalThis.GoogleNavigation.buttonTemplate.commandKeydown;
    cloned.commandKeyup = globalThis.GoogleNavigation.buttonTemplate.commandKeyup;
    cloned.commandPress = globalThis.GoogleNavigation.buttonTemplate.commandPress;
    cloned.commandCancel = globalThis.GoogleNavigation.buttonTemplate.commandCancel;
    cloned.innerHTML = string;
    cloned.classList.add(`google-navigation--button-${key}`);
    if (link) {
        cloned.link = link;
        cloned.setAttribute('link', link);
    }
    return cloned;
}

function plantButtons() {
    let links = [...document.getElementsByClassName('LC20lb')];
    let num = 0;
    for (let link of links) {
        if (getCollapseSectionParent(link)) continue;
        if (num >= 10) continue;
        let href = link.parentElement.href;
        let cloned;
        if (num === 0) {
            cloned = getClonedButton(['Enter', '⮨'], href);
            cloned.classList.add('google-navigation--button-0');
        } else {
            cloned = getClonedButton(num, href);
        }
        cloned.style.top = `${link.offsetTop + link.clientHeight / 2 - GoogleNavigation.GN_BUTTON_SIZE_HALF}px`;
        link.insertBefore(cloned, link.children[0]);
        num += 1;
    }

    let search = document.getElementById('search');
    if (search) {
        let cloned = getClonedButton(['Control', 'CTRL']);
        cloned.id = 'google-navigation--switch-Control';
        cloned.classList.add('google-navigation--switch');
        cloned.style.left = '-150px';
        cloned.style.width = '80px';
        cloned.style.fontWeight = 'bold';
        cloned.keydown = false;
        cloned.commandKeydown = function () {
            this.tmrKeypress = globalThis.setTimeout(() => {
                this.tmrKeypress = globalThis.GoogleNavigation.GN_KEYPRESS_CANCELED;
            }, globalThis.GoogleNavigation.GN_KEYPRESS_SENSITIVITY);
        };
        cloned.commandKeyup = function () {
            if (this.tmrKeypress === globalThis.GoogleNavigation.GN_KEYPRESS_CANCELED) {
                this.tmrKeypress = undefined;
            } else if (this.tmrKeypress) {
                this.keydown = !this.keydown;
                if (this.keydown) {
                    this.classList.add('keydown');
                } else {
                    this.classList.remove('keydown');
                }
            }
        };
        search.insertBefore(cloned, search.children[0]);
    }

    let btnWiki = document.getElementsByClassName('ruhjFe')[0];
    if (btnWiki) {
        let cloned = getClonedButton(['p', 'P'], btnWiki.href);
        let card = getWidgetParent(btnWiki);
        card.style.position = 'relative';
        card.insertBefore(cloned, card.children[0]);
    }

    let translatorWidgetMain = document.getElementById('tw-main');
    let translatorWidgetSourceTextTA = document.getElementById('tw-source-text-ta');
    if (translatorWidgetMain && translatorWidgetSourceTextTA) {
        let cloned = getClonedButton(['t', 'T']);
        let rectMain = translatorWidgetMain.getBoundingClientRect();
        let rectText = translatorWidgetSourceTextTA.getBoundingClientRect();
        let top = (rectText.bottom + rectText.top) / 2 - rectMain.top - GoogleNavigation.GN_BUTTON_SIZE_HALF;
        cloned.style.top = `${top}px`;
        cloned.commandPress = function () {
            document.getElementById('tw-source-text-ta').focus();
        };
        translatorWidgetMain.style.position = 'relative';
        translatorWidgetMain.insertBefore(cloned, translatorWidgetMain.children[0]);
    }

    let calculatorWidget = document.getElementById('cwos')?.parentElement?.parentElement;
    if (calculatorWidget) {
        let calculatorWidgetParent = getWidgetParent(calculatorWidget);
        let cloned = getClonedButton(['t', 'T']);
        let top = calculatorWidgetParent.clientHeight / 2 - globalThis.GoogleNavigation.GN_BUTTON_SIZE_HALF;
        cloned.style.top = `${top}px`;
        cloned.commandPress = function () {
            document.getElementById('cwos').parentElement.parentElement.focus();
        };
        calculatorWidgetParent.insertBefore(cloned, calculatorWidgetParent.children[0]);
    }

    // let currentPage = document.getElementById('top_nav')?.querySelector('[aria-current=page]');
    // if (currentPage) {
    //     let nav = currentPage.parentElement;
    //     let next = currentPage.nextSibling;
    //     if (!next) next = nav.children[0];
    //     let cloned = getClonedButton(['n', 'N'], next.getElementsByTagName('a')[0]?.href);
    //     cloned.style.left = '130px';
    //     nav.insertBefore(cloned, nav.children[0]);
    // }

    let pnprev = document.getElementById('pnprev');
    if (pnprev) {
        let cloned = getClonedButton([',', ','], pnprev.href);
        cloned.style.top = '-3px';
        cloned.style.left = '-40px';
        pnprev.style.position = 'relative';
        pnprev.insertBefore(cloned, pnprev.children[0]);
    }
    let pnnext = document.getElementById('pnnext');
    if (pnnext) {
        let cloned = getClonedButton(['.', '‧'], pnnext.href);
        cloned.style.top = '-3px';
        cloned.style.left = 'calc(100% + 5px)';
        pnnext.style.position = 'relative';
        pnnext.insertBefore(cloned, pnnext.children[0]);
    }
}

function isCommanding() {
    let target = document.activeElement;
    return !(['INPUT', 'TEXTAREA'].includes(target.tagName) || target.classList.contains('jlkklc'));
}

function cssVar(name) {
    return globalThis.getComputedStyle(document.documentElement).getPropertyValue(name);
}

function getWidgetParent(element) {
    let node = element;
    do {
        let computedStyle = globalThis.getComputedStyle(node);
        let borderWidth = computedStyle.borderWidth;
        if (borderWidth !== '' && !(/^0\D*/.test(borderWidth))) {
            return node;
        }
        node = node.parentElement;
    } while (node !== document.body);
    return null;
}

function getCollapseSectionParent(element) {
    let node = element;
    do {
        if (node.children.length > 0) {
            let computedStyle = globalThis.getComputedStyle(node.children[0]);
            let borderWidth = computedStyle.borderWidth;
            if (borderWidth === '1px 0px 0px') return node;
        }
        node = node.parentElement;
    } while (node !== document.body);
    return null;
}

function assignEventListeners() {
    let onFocusChanged = function (ev) {
        document.documentElement.style.setProperty(
            '--google-navigation--button-opacity',
            isCommanding() ? 1 : 0.5
        );
    };
    window.addEventListener('focus', onFocusChanged, true);
    window.addEventListener('blur', onFocusChanged, true);

    document.body.addEventListener('keydown', function (ev) {
        if (globalThis.GoogleNavigation.keydowns.has(ev.key)) return;
        globalThis.GoogleNavigation.keydowns.add(ev.key);
        if (isCommanding()) {
            let button = document.getElementsByClassName(`google-navigation--button-${ev.key}`)[0];
            if (button) {
                button.commandKeydown();
            }
        }
    });

    document.body.addEventListener('keyup', function (ev) {
        globalThis.GoogleNavigation.keydowns.delete(ev.key);
        if (globalThis.GoogleNavigation.tmrKeydown === globalThis.GoogleNavigation.GN_KEYDOWN_TIMER_CANCELED) {
            globalThis.GoogleNavigation.tmrKeydown = undefined;
            return;
        }
        globalThis.clearTimeout(globalThis.GoogleNavigation.tmrKeydown);
        globalThis.GoogleNavigation.tmrKeydown = undefined;
        if (isCommanding()) {
            let button = document.getElementsByClassName(`google-navigation--button-${ev.key}`)[0];
            if (button) {
                button.commandKeyup();
            }
        }
    });
}

setCSSVars();
makeTemplate();
plantButtons();
assignEventListeners();

console.log(`Google Navigation end at ${new Date()}`);
console.log(`Google Navigation consumed ${Date.now() - timeStart} ms. `);