Page rank

README.md

Page rank user script

About this user script

It adds a button to google search result, then ask you for a website and browse all result pages to find the position of this website in google.

TODO:

• use the URL un get rather than localstorage => enable multiple tabs
• mark the result in the list rather than alert => looks nice, do not bug in firefox
• check the page even if not "searching" => when you search google, your websites have their page rank beside them

page-rank.user.js

// ==UserScript==
// @name         Page rank
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  add a button to google search result, then ask you for a website and browse all result pages to find the position of this website in google
// @author       You
// @match        https://www.google.com/search*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const INTERVAL_WAIT = 10000;

    const defaultUrl = localStorage.getItem('page-rank-url') || '';
    if(location.search
        .split("&")
        .filter(param => param === 'page-rank-user-script')
        .length > 0) {
        searchFor(defaultUrl);
        const btnStr = `
<button id='page-rank-stop'>Stop search</button>
`;
        document.querySelector('#hdtb-msb div').insertAdjacentHTML('beforeend', btnStr);
        document.querySelector('#page-rank-stop').onclick = () => stopPageRank();

    }
    else {
        const btnStr = `
<button id='page-rank-start'>Start search</button>
`;
        document.querySelector('#hdtb-msb div').insertAdjacentHTML('beforeend', btnStr);
        document.querySelector('#page-rank-start').onclick = () => startPageRank(defaultUrl);
    }

    function stopPageRank(defaultUrl) {
        location.search = location.search.replace('&page-rank-user-script', '');
    }

    function startPageRank(defaultUrl) {
        const url = prompt('which URL', defaultUrl);
        if(url) {
            localStorage.setItem('page-rank-url', url);
            location.search += '&page-rank-user-script';
        }
    }

    function searchFor(url) {
        const result = checkPage(url);
        if(result.length === 0) {
            console.log('continue');
            nextPage();
        }
        else {
            stopPageRank();
            const rank = document.querySelector('.cur').innerText;
            alert('Found ' + result.join(', ') + ' at page ' + rank);
        }
    }

    function checkPage(url) {
        return Array.from(document.querySelectorAll('cite'))
            .map(el => el.innerHTML)
            .filter(u => u.indexOf(url) >= 0)
    }

    function nextPage() {
        const arr = Array.from(document.querySelectorAll('.pn'));
        const a = arr[arr.length - 1];
        a.search += '&page-rank-user-script';
        console.log(a);
        setTimeout(() => doClick(a), Math.random() * INTERVAL_WAIT);
    }

    function dispatchMouseEvent(target, var_args) {
        var e = document.createEvent("MouseEvents");
        // If you need clientX, clientY, etc., you can call
        // initMouseEvent instead of initEvent
        e.initEvent.apply(e, Array.prototype.slice.call(arguments, 1));
        target.dispatchEvent(e);
    }

    function doClick(element) {
        console.log('do click', element);
        dispatchMouseEvent(element, 'mouseover', true, true);
        dispatchMouseEvent(element, 'mousedown', true, true);
        dispatchMouseEvent(element, 'click', true, true);
        dispatchMouseEvent(element, 'mouseup', true, true);
    }
})();