GBT scroller-coaster (GBTSC)

[BETA] Infinity scrolling for videos (main, search, channels) & photos (photos, search, channels)

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

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

Dovrai installare un gestore di script utente per installare questo script.

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

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 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         GBT scroller-coaster (GBTSC)
// @namespace    _pc
// @version      0.999
// @license      MIT
// @description  [BETA] Infinity scrolling for videos (main, search, channels) & photos (photos, search, channels)
// @author       verydelight
// @match        *://*.gayporntube.com
// @match        *://*.gayporntube.com/
// @match        *://*.gayporntube.com/channels/*
// @match        *://*.gayporntube.com/search/videos/*
// @match        *://*.gayporntube.com/photos/*
// @match        *://*.gayporntube.com/search/photos/*
// @connect      gayporntube.com
// @include      gayporntube.com
// @icon         https://www.gayporntube.com/favicon.ico
// @run-at       document-end
// @compatible   Firefox Tampermonkey
// @grant        GM.xmlHttpRequest
// @grant        GM_download
// @grant        GM_xmlHttpRequest
// @grant        GM.download
// @require      https://code.jquery.com/jquery-3.6.0.min.js
// ==/UserScript==
'use strict';
const path = window.location.pathname;
if (
path === "" ||
path === "/" ||
path.startsWith("/channels") ||
path.startsWith("/search/videos") ||
path.startsWith("/photos") ||
path.startsWith("/search/photos")
){
	let area = window.location.pathname.split("/");
	let testArea,baseUrl
	let videoPage=false;
	const identifier = $('div[id]')[2].id;
	testArea = area[2] ? `${area[1]}/${area[2]}` : (area[1] || "videos");
	switch(testArea) {
		case "videos":
		baseUrl = "https://www.gayporntube.com/page";
		gbtScroller(identifier,baseUrl);
		videoPage = true;
		break;
		case "search/videos":
		baseUrl = "https://www.gayporntube.com/search/videos/"+area[area.length - 2]+"/page";
		gbtScroller(identifier,baseUrl);
		videoPage = true;
		break;
		case testArea.match(/^channels\/[0-9]{1,3}/)?.input:
		baseUrl = "https://www.gayporntube.com/channels/"+area[area.length - 3]+"/"+area[area.length - 2]+"/page";
		gbtScroller(identifier,baseUrl);
		videoPage = true;
		break;
		case "photos":
		baseUrl = "https://www.gayporntube.com/photos/page";
            console.log(baseUrl);
		gbtScroller(identifier,baseUrl);
		break;
		case "search/photos":
		baseUrl = "https://www.gayporntube.com/search/photos/"+area[area.length - 2]+"/page";
		gbtScroller(identifier,baseUrl);
		break;
		case "photos/channels":
		baseUrl = "https://www.gayporntube.com/photos/channels/"+area[area.length - 2]+"/page";
		gbtScroller(identifier,baseUrl);
		break;
		default:
	}
	function gbtScroller(identifier,baseUrl){
		const style = document.createElement('style')
		style.type = 'text/css';
		style.textContent = `.gbtloader {
			width: 60px;
			display: block;
			aspect-ratio: 4;
			background: radial-gradient(circle closest-side,#009ec5CC 90%,#0000) 0/calc(100%/3) 100% space;
			clip-path: inset(0 100% 0 0);
			animation: l1 0.8s steps(4) infinite;
			transform: translate(10px, 10px);
		}
		@keyframes l1 {
			to {clip-path: inset(0 -34% 0 0);}
		}`;
		document.head.appendChild(style);
		let videoListing = document.getElementById(identifier);
		videoListing.nextElementSibling.remove();
		let loadTrigger = document.createElement("postloader");
		loadTrigger.id = 'postloader-1';
		loadTrigger.classList.add('item','item-col','gbtloader');
		//loadTrigger.append("(Loading...)");
		videoListing.append(loadTrigger)
		let target = videoListing.getElementsByTagName('postloader')[0];
		let options = {
			root: null,
			rootMargin: '0px',
			threshold: 0
		}
		let firstCallImminent = true;
		if (target.getBoundingClientRect().top < window.innerHeight && target.getBoundingClientRect().bottom > 0) {
			// The target is within the viewport
			//callback([{isIntersecting: true}]);
			firstCallImminent = false;
		}
		let observer = new IntersectionObserver(callback, options);
		if (target){ observer.observe(target); }
		function callback() {
			if(!firstCallImminent){
				observer.unobserve(target);
				var nextPage = parseInt(loadTrigger.id.split("-")[1])+1;
				var nextPageUrl = baseUrl+nextPage+".html";
				loadNextPage(nextPageUrl,nextPage);
				//firstCallImminent = true;
			}else{
				firstCallImminent = false;
			}
		}
		async function loadNextPage(url,nextPage) {
            console.log("loading:",url);
			try {
				const response = await GM.xmlHttpRequest({
					method: 'GET',
					responseType: 'document',
					url: url,
				});
				const newResults = response.response;
				var childResults = newResults.getElementById(identifier).children;
				while (childResults.length > 0)
				{
					if (videoPage){
						if(childResults[0].querySelector('img')){
							const firstChildNode = childResults[0].firstElementChild;
							const lastChildNode = childResults[0].lastElementChild;
							const newWrapper = document.createElement("div");
							newWrapper.classList.add("item", "item-col");
							const aImg = childResults[0].querySelector('a');
							aImg.removeAttribute('class');
							aImg.setAttribute("data-title",aImg.title);
							aImg.removeAttribute('title');
							aImg.classList.add("image");
							const videoImage = firstChildNode.querySelector('img');
							const videoElement = document.createElement("video");
							videoElement.alt = videoImage.getAttribute("alt");
							videoElement.poster = videoImage.getAttribute("data-src");
							videoElement.controls = false;
							videoElement.style.objectFit = "cover";
							videoElement.style.position = "absolute";
							videoElement.style.left = "0px";
							videoElement.style.top = "0px";
							videoElement.setAttribute('webkit-playsinline', 'true');
							videoElement.setAttribute('playsinline', 'true');
							videoElement.preload = "auto";
							videoElement.height = videoImage.getAttribute("height");
							videoElement.width = videoImage.getAttribute("width");
                            videoElement.muted = true;
							videoElement.addEventListener('mouseover', () => {
								if(!videoElement.src){
									const previewUrl = videoImage.getAttribute("data-preview");
                                    downloadPreview(previewUrl);
								}
                                //download needed to avoid CORS
								async function downloadPreview(url) {
									try {
										const response = await GM.xmlHttpRequest({
											method: 'GET',
											responseType: 'blob',
											url: url,
											headers: {
												"Content-Type": "video/mp4", "Accept": "video/mp4"
											},
										});
										const blob = new Blob([response.response],{type: 'video/mp4'});
										videoElement.src = URL.createObjectURL(blob);
									} catch (err) {
										console.error("GBTSC: Error in fetching and downloading preview file:", err);
									}
								}
								videoElement.play();
							});
							videoElement.addEventListener('mouseleave', () => {
								videoElement.style.display = 'none';
								videoElement.load();
							});
							videoImage.addEventListener('mouseenter', () => {
								videoElement.style.display = '';
								videoElement.load();
							});
							videoElement.style.display = 'none';
							newWrapper.append(firstChildNode);
							videoImage.insertAdjacentElement('afterend', videoElement)
							newWrapper.append(lastChildNode);
							videoListing.appendChild(newWrapper);
						}else{
							childResults[0].remove()
						}
					}else{
						videoListing.appendChild(childResults[0]);
					}
				}
				//firstCallImminent = true;
                loadTrigger.remove();
				loadTrigger.id = 'postloader-'+nextPage;
				videoListing.append(loadTrigger);
				if (target.getBoundingClientRect().top < window.innerHeight && target.getBoundingClientRect().bottom > 0) {
                    firstCallImminent = false;
                }else{
                    firstCallImminent = true;
                }
                //console.log("appended");
				observer.observe(target);
			} catch (err) {
				console.error("GBTSC: Error in fetching and downloading next videos:", err);
				observer.unobserve(target);
				loadTrigger.remove();
			}
            console.log("loaded: ",url);
		}
	}
}