Google Navigation

Navigate through Google Search with a set of hotkeys.

目前為 2021-10-23 提交的版本,檢視 最新版本

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name            Google Navigation
// @name:zh         Google 快覽
// @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. 
// @description:zh  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. `);