Google Navigation

Navigate through Google Search with a set of hotkeys.

Version vom 23.10.2021. Aktuellste Version

Du musst eine Erweiterung wie Tampermonkey, Greasemonkey oder Violentmonkey installieren, um dieses Skript zu installieren.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

Sie müssten eine Skript Manager Erweiterung installieren damit sie dieses Skript installieren können

(Ich habe schon ein Skript Manager, Lass mich es installieren!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==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. `);