Ended Google

Load fewer results non-automatically and finitely ;) Very rough hack of "Endless Google" by tumpio (https://openuserjs.org/scripts/tumpio/Endless_Google) to BREAK continuous scrolling

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

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

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(Ho già un gestore di script utente, lasciamelo installare!)

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Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name            Ended Google
// @description     Load fewer results non-automatically and finitely ;) Very rough hack of "Endless Google" by tumpio (https://openuserjs.org/scripts/tumpio/Endless_Google) to BREAK continuous scrolling
// @author          aHorseSplashes
// @include         http://www.google.*
// @include         https://www.google.*
// @include         https://encrypted.google.*
// @run-at          document-start
// @version         0.0.1
// @license         MIT
// @noframes
// @namespace https://greasyfork.org/users/1035525
// ==/UserScript==

/* Instructions/info:
     * The first "more results" page will automatically load as normal. This is so you can read search results near the bottom of the first page.
     * To escape continuous scrolling, QUICKLY scroll down to the bottom of the second page. It should reload to the paginated version.
     * I'm sure a lot of the original "Endless Google" script is no longer necessary, but eh, good enough.
     * Tested on Firefox and Chrome with a US IP address.
     * Probably not going to be maintained or updated. WYSIWYG
*/

if (location.href.indexOf("tbm=isch") !== -1) // NOTE: Don't run on image search
    return;
if (window.top !== window.self) // NOTE: Do not run on iframes
    return;

const centerElement = "#center_col";
const loadWindowSize = 1.6;
const filtersAll = ["#foot", "#bottomads"];
const filtersCol = filtersAll.concat(["#extrares", "#imagebox_bigimages"]);
let msg = "";

const css = `
.page-number {
  position: relative;
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
	margin-bottom: 2em;
	color: #808080;
}
.page-number::before {
  content: "";
  background-color: #ededed;
  height: 1px;
  width: 100%;
  margin: 1em 3em;
}
.endless-msg {
  position:fixed;
  bottom:0;
  left:0;
  padding:5px 10px;
  background: darkred;
  color: white;
  font-size: 11px;
  display: none;
}
.endless-msg.shown {
  display:block;
}
`;

let pageNumber = 1;
let prevScrollY = 0;
let nextPageLoading = false;

function requestNextPage() {
    nextPageLoading = true;
    let nextPage = new URL(location.href);
    if (!nextPage.searchParams.has("q") || (nextPage.searchParams.has("start") && !nextPage.searchParams.has("start=0"))) return;

    nextPage.searchParams.set("start", 10);
    if(pageNumber > 1) window.location.assign(nextPage);
    !msg.classList.contains("shown") && msg.classList.add("shown");
    fetch(nextPage.href)
        .then(response => response.text())
        .then(text => {
            let parser = new DOMParser();
            let htmlDocument = parser.parseFromString(text, "text/html");
            let docElement = htmlDocument.documentElement;
            let content = docElement.querySelector(centerElement);

            content.id = "col_" + 0;
            filter(content, filtersCol);

            content.style.marginLeft = '0';

            let pageMarker = document.createElement("div");
            pageMarker.textContent = String(pageNumber);
            pageMarker.className = "page-number";

            let col = document.createElement("div");
            col.className = "next-col";
            col.appendChild(pageMarker);

            // Set images source address
            try {
                let thumbnails = text.match(/google\.ldi=({.+?})/);
                let thumbnailsObj = JSON.parse(thumbnails && thumbnails[1]);
                for (let id in thumbnailsObj) {
                    docElement.querySelector("#"+id).src = unescapeHex(thumbnailsObj[id]);
                }
            } catch(e) {}

            function setImagesSrc({id}) {
                let pattern = new RegExp("var\\ss='(\\S+)';var\\sii=\\[[a-z0-9_',]*?'"+id+"'[a-z0-9_',]*?\\];");
                let imageSource = text.match(pattern);
                if (imageSource != null && imageSource[1]) {
                    docElement.querySelector("#"+id).src = unescapeHex(imageSource[1]);
                }
            }
            docElement.querySelectorAll('g-img > img[id]').forEach(setImagesSrc);
            docElement.querySelectorAll('div > img[id^=dimg_]').forEach(setImagesSrc);

            docElement.querySelectorAll('img[data-src]').forEach((img) => {
                img.src = img.dataset.src;
                img.style.visibility = 'visible';
            });

            col.appendChild(content);
            document.querySelector(centerElement).appendChild(col);

            if (!content.querySelector("#rso")) {
                // end of results
                window.removeEventListener("scroll", onScrollDocumentEnd);
                nextPageLoading = false;
                msg.classList.contains("shown") && msg.classList.remove("shown");
                return;
            }

            if (pageNumber = 1) pageNumber++;
            nextPageLoading = false;
            msg.classList.contains("shown") && msg.classList.remove("shown");
        });
}

function unescapeHex(hex) {
    if (typeof hex != "string") { return ""; }
    return hex.replace(/\\x([0-9a-f]{2})/ig, function(_, chunk) {
        return String.fromCharCode(parseInt(chunk, 16));
    });
}

function onScrollDocumentEnd() {
    let y = window.scrollY;
    let delta = y - prevScrollY;
    if (!nextPageLoading && delta > 0 && isDocumentEnd(y)) {
        requestNextPage();
    }
    prevScrollY = y;
}

function isDocumentEnd(y) {
    return y + window.innerHeight * loadWindowSize >= document.body.clientHeight;
}

function filter(node, filters) {
    for (let filter of filters) {
        let child = node.querySelector(filter);
        if (child) {
            child.parentNode.removeChild(child);
        }
    }
}

function init() {
    prevScrollY = window.scrollY;
    window.addEventListener("scroll", onScrollDocumentEnd);
    filter(document, filtersAll);
    let style = document.createElement("style");
    style.type = "text/css";
    style.appendChild(document.createTextNode(css));
    document.head.appendChild(style);
    msg = document.createElement("div");
    msg.setAttribute("class", "endless-msg");
    msg.innerText = "Loading next page...";
    document.body.appendChild(msg);
}

document.addEventListener("DOMContentLoaded", init);