Endless Google

// ==UserScript==

// @name Endless Google

// @description Load more results automatically and endlessly.

// @author tumpio

// @oujs:author tumpio

// @namespace tumpio@sci.fi

// @homepageURL https://openuserjs.org/scripts/tumpio/tumpiosci.fi/Endless_Google

// @supportURL https://github.com/tumpio/gmscripts

// @icon https://github.com/tumpio/gmscripts/raw/master/Endless_Google/large.png

// @include http://www.google.*

// @include https://www.google.*

// @include https://encrypted.google.*

// @run-at document-start

// @grant GM_xmlhttpRequest

// @version 0.0.4

// ==/UserScript==

// TODO: on page refresh:

// 2: load only the last scrolled page (on refresh, load last requested page) (could be a good default, needs scroll up support)

// beforeunload -> store last requested page with GM_setVariable() and reload it instead

// TODO: onerror, onabort: show to user "page loading failed", button to retry

// FIXME: bug: Suggested images don't show up on new requested pages

// case: https://www.google.fi/webhp?tab=ww&ei=e0UjU9ynEKqkyAO46YD4DQ&ved=0CBEQ1S4#q=tetsaus

// workaround, hiding now

// FUTURE: Options dialog

// FUTURE: Replace footer with page #no info UI

// FUTURE: Add page up/down and back to top/bottom controls UI + (go to the page #n)?

// FUTURE: Add columns support

// FUTURE: show page loading icon

// FUTURE: show page fav-icons for results

// FUTURE: number results

// FUTURE: option to load static google css

// FUTURE: support scroll up

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;

document.addEventListener('DOMContentLoaded', function () {

// NOTE: Options

var request_pct = 0.05; // percentage of window height left on document to request next page, value must be between 0-1

var event_type = "scroll"; // or "wheel"

var on_page_refresh = 1;

// 0: reload all previous pages requested

// 1: load only the first page (prevent restoring the scroll position)

// 2: load only the last page requested

var main = document.getElementById("main");

var rcnt = document.getElementById("rcnt");

var input = document.getElementById("lst-ib");

var input_value = input.value;

var old_scrollY = 0;

var scroll_events = 0;

var next_link = null;

var cols = [];

var request_offsetHeight = 0;

var stop_events = false;

input.addEventListener("blur", reset, false); // NOTE: listens for new search input to reset state

window.addEventListener(event_type, onScroll, false);

window.addEventListener("beforeunload", function () {

window.scrollTo(0, 0);

}, false);

function requestNextPage(link) {

console.log("request next");

console.log(link);

GM_xmlhttpRequest({

method: "GET",

url: link,

onload: function (response) {

var el = document.getElementById('navcnt');

el.parentNode.removeChild(el); //Deletes the navigation box

var holder = document.createElement("div");

holder.innerHTML = response.responseText;

next_link = holder.querySelector("#pnnext").href;

var next_col = document.createElement("div");

next_col.className = "EG_col";

next_col.appendChild(holder.querySelector("#center_col"));

var rel_search = next_col.querySelector("#extrares");

var rel_images = next_col.querySelector("#imagebox_bigimages");

var rel_ads = next_col.querySelector("#tads");

if (rel_search)

rel_search.style.display = "none"; // NOTE: Hides repeating "related searches"

if (rel_images)

rel_images.style.display = "none"; // NOTE: Hides related images, that are broken (bug)

if (rel_ads)

rel_ads.style.display = "none"; // NOTE: Hides repeating "search results ad"

cols.push(next_col);

console.log("Page no: " + cols.length);

next_col.id = next_col.className + "_" + (cols.length - 1); // NOTE: add unique id for every new col

if (!rcnt || cols.length === 1) // NOTE: needs to be rechecked on a state reset too, and late insertation of element on google instant

rcnt = document.getElementById("rcnt");

rcnt.appendChild(next_col);

stop_events = false;

window.addEventListener(event_type, onScroll, false);

}

});

}

function onScroll(e) {

var y = window.scrollY;

// if (scroll_events === 0) old_scrollY = y; // stops only if scroll position was on 2. page

var delta = e.deltaY || y - old_scrollY; // NOTE: e.deltaY for "wheel" event

if (delta > 0 && (window.innerHeight + y) >= (document.body.clientHeight - (window.innerHeight * request_pct))) {

console.log("scroll end");

window.removeEventListener(event_type, onScroll, false);

try {

if(!stop_events){

stop_events = true;

requestNextPage(next_link || document.getElementById("pnnext").href);

}

} catch (err) {

console.error(err.name + ": " + err.message);

// NOTE: recovery unnecessary, input event handles it with reset on new search

}

}

old_scrollY = y;

scroll_events += 1;

}

// NOTE: Resets the script state on a new search

function reset() {

if (input.value !== input_value) {

input_value = input.value;

window.scrollTo(0, 0);

for (var i = 0; i < cols.length; i++)

rcnt.removeChild(cols[i]);

cols = [];

next_link = null;

old_scrollY = 0;

scroll_events = 0;

console.log("RESET");

}

}

console.log("egoogle.js initialized");

});

console.log("egoogle.js loaded");