Google Navigation

Navigate through Google Search with a set of hotkeys.

Verzia zo dňa 23.10.2021. Pozri najnovšiu verziu.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey, Greasemonkey alebo Violentmonkey.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey, % alebo Violentmonkey.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey, % alebo Violentmonkey.

Na nainštalovanie skriptu si budete musieť nainštalovať rozšírenie, ako napríklad Tampermonkey alebo Userscripts.

Na inštaláciu tohto skriptu je potrebné nainštalovať rozšírenie, ako napríklad Tampermonkey.

Na inštaláciu tohto skriptu je potrebné nainštalovať rozšírenie správcu používateľských skriptov.

(Už mám správcu používateľských skriptov, nechajte ma ho nainštalovať!)

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie, ako napríklad Stylus.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

Na inštaláciu tohto štýlu je potrebné nainštalovať rozšírenie správcu používateľských štýlov.

(Už mám správcu používateľských štýlov, nechajte ma ho nainštalovať!)

// ==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. `);