Add a modal image and thumbnails vertical-carrousel to rule34
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// ==UserScript==
// @name Modal Image in rule 34
// @namespace http://tampermonkey.net/
// @version 5.0
// @description Add a modal image and thumbnails vertical-carrousel to rule34
// @author falaz
// @match https://rule34.xxx/index.php?page=po*
// @icon https://www.google.com/s2/favicons?domain=rule34.xxx
// @grant none
// ==/UserScript==
// @ts-check
class Falaz {
/**
* Like querySelector, but small
* @param {String} selector
* @param {Element|Document} element
* @returns {HTMLElement}
*/
q(selector, element = document) {
return element.querySelector(selector);
}
/**
* Like querySelectorAll, but small
* @param {String} selector
* @param {Element|Document} element
* @returns
*/
qa(selector, element = document) {
return element.querySelectorAll(selector);
}
}
class Modal {
constructor(document, dp) {
this.pointer = 0;
this.dp = dp;
this.infinityScroll = new InfinityScroll(document, dp);
/**
* @property {Media[]} medias
*/
this.medias = this.infinityScroll.getMedias(document, 0);
this.thumbsGallery = new ThumbsGallery(this.medias);
this.createModalNode(document, this.thumbsGallery.render());
this.visible = false;
}
createModalNode(document, extraDiv=null) {
const div = document.createElement("div");
const css = document.createElement("style");
div.innerHTML =
`<div id="modal-container" style="display:none"><div id="modal"></div>${extraDiv?extraDiv:''}${this.createButtons()}</div>`;
css.innerHTML =
"#modal-container{background: #000000a8;width: 100%;height: 100%;position: fixed;z-index: 10;}" +
"#modal{height: 90%;width: 80%;background: transparent;padding: 0% 5%;margin: 2% 5% 2% 0;position: fixed}" +
"#modal img{width: auto;border: none;vertical-align: middle;height: 100%;margin: 0 auto;display:block;}" +
"#modal video{width: 100%;height:100%}"+
"#modal-container #thumbGallery{float:right;overflow-y: hidden;height: 900px;} #modal-container #thumbGallery ul{list-style:none}"+
"#modal-container .gallery-item{cursor: pointer;}"+
'#navigationModal{margin-bottom: 0px;font-size: 20px;color: white;display: flex;justify-content: center;bottom: 0px;width: 100%;}'+
'#navigationModal svg:hover g g {fill: white;}';
document.body.prepend(div);
document.head.prepend(css);
this.modalContainer = F.q("#modal-container");
this.modal = F.q("#modal");
this.infinityScroll.nextPage =this.infinityScroll.getNextPageHref(document);
}
createButtons(){
return `<div id="navigationModal"">
<div onclick={document.modalObj.prevMedia()}><svg xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" width="52" height="52" viewBox="0 0 172 172" style=" fill:#000000;"><g fill="none" fill-rule="nonzero" stroke="none" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" stroke-dasharray="" stroke-dashoffset="0" font-family="none" font-weight="none" font-size="none" text-anchor="none" style="mix-blend-mode: normal"><path d="M0,172v-172h172v172z" fill="none"></path><g fill="#1abc9c"><path d="M125.69231,19.84615h-79.38462c-14.54868,0 -26.46154,11.91286 -26.46154,26.46154v79.38462c0,14.54868 11.91286,26.46154 26.46154,26.46154h79.38462c14.54868,0 26.46154,-11.91286 26.46154,-26.46154v-79.38462c0,-14.54868 -11.91286,-26.46154 -26.46154,-26.46154zM112.46154,59.53846l-47.6256,26.46154l47.6256,26.46154v13.23077l-59.53846,-33.07692v-13.23077l59.53846,-33.07692z"></path></g></g></svg></div>
<div onclick={document.modalObj.nextMedia()}><svg xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" width="52" height="52" viewBox="0 0 172 172" style=" fill:#000000;"><g fill="none" fill-rule="nonzero" stroke="none" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" stroke-dasharray="" stroke-dashoffset="0" font-family="none" font-weight="none" font-size="none" text-anchor="none" style="mix-blend-mode: normal"><path d="M0,172v-172h172v172z" fill="none"></path><g fill="#1abc9c"><path d="M125.69231,19.84615h-79.38462c-14.54868,0 -26.46154,11.91286 -26.46154,26.46154v79.38462c0,14.54868 11.91286,26.46154 26.46154,26.46154h79.38462c14.54868,0 26.46154,-11.91286 26.46154,-26.46154v-79.38462c0,-14.54868 -11.91286,-26.46154 -26.46154,-26.46154zM119.07692,92.61538l-59.53846,33.07692v-13.23077l47.6256,-26.46154l-47.6256,-26.46154v-13.23077l59.53846,33.07692z"></path></g></g></svg></div>
<div onclick={document.modalObj.close()}><svg xmlns="http://www.w3.org/2000/svg" x="0px" y="0px" width="60" height="60" viewBox="0 0 172 172" style=" fill:#000000;"><g fill="none" fill-rule="nonzero" stroke="none" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="10" stroke-dasharray="" stroke-dashoffset="0" font-family="none" font-weight="none" font-size="none" text-anchor="none" style="mix-blend-mode: normal"><path d="M0,172v-172h172v172z" fill="none"></path><g id="original-icon" fill="#1abc9c"><path d="M86,17.2c-37.9948,0 -68.8,30.8052 -68.8,68.8c0,37.9948 30.8052,68.8 68.8,68.8c37.9948,0 68.8,-30.8052 68.8,-68.8c0,-37.9948 -30.8052,-68.8 -68.8,-68.8zM112.9868,104.87987c2.24173,2.24173 2.24173,5.8652 0,8.10693c-1.118,1.118 -2.58573,1.67987 -4.05347,1.67987c-1.46773,0 -2.93547,-0.56187 -4.05347,-1.67987l-18.87987,-18.87987l-18.87987,18.87987c-1.118,1.118 -2.58573,1.67987 -4.05347,1.67987c-1.46773,0 -2.93547,-0.56187 -4.05347,-1.67987c-2.24173,-2.24173 -2.24173,-5.8652 0,-8.10693l18.87987,-18.87987l-18.87987,-18.87987c-2.24173,-2.24173 -2.24173,-5.8652 0,-8.10693c2.24173,-2.24173 5.8652,-2.24173 8.10693,0l18.87987,18.87987l18.87987,-18.87987c2.24173,-2.24173 5.8652,-2.24173 8.10693,0c2.24173,2.24173 2.24173,5.8652 0,8.10693l-18.87987,18.87987z"></path></g></g></svg></div>
</div>`
}
/**
* @param {Media} media
*/
async render(media) {
if (!this.modalContainer) {
this.createModalNode(document,this.thumbsGallery.render());
}
if (media.src == "Retry") {
await this.reloadMediaSrc(media);
}
if (media.type == "video") {
this.modal.innerHTML = `<video src="${media.src}" autoplay controls loop id="modalVideo"></video>`;
F.q('#modalVideo').volume = this.getCurrentVolume();
F.q('#modalVideo').onvolumechange = e=>this.saveCurrentVolume(e.target.volume);
} else {
this.modal.innerHTML = `<img src="${media.src}"/>`;
}
this.modalContainer.style.display = "block";
this.visible = true;
modalObj.scrollIntoCurrentMedia();
}
getCurrentVolume(){
return localStorage.volume? localStorage.volume: 0.3;
}
/**
* Attach to event video.onvolumechange
* @param {number} value
*/
saveCurrentVolume(value){
localStorage.volume = value;
}
async getNextPage() {
if (!this.infinityScroll.nextSended) {
this.infinityScroll.nextSended = true;
const docResponse = await this.infinityScroll.getNextPage();
if (docResponse) {
const medias = this.infinityScroll.getMedias(
docResponse,
this.medias.length
);
this.addMedias(medias);
this.infinityScroll.nextSended = false;
}else{
console.log('The page requested is on the medias');
}
}
}
close() {
if (!this.modalContainer) {
this.createModalNode(document);
}
try {
this.modal.querySelector("video").pause();
} catch (e) {}
this.modalContainer.style.display = "none";
this.visible = false;
}
nextMedia() {
if (this.pointer < this.medias.length - 1) {
this.pointer++;
this.render(this.medias[this.pointer]);
} else {
this.getNextPage();
this.pointer++;
this.render(this.medias[this.pointer]);
}
}
goToMedia(index){
if(index<this.medias.length-1){
this.render(this.medias[index])
this.scrollIntoCurrentMedia();
}
}
prevMedia() {
if (this.pointer > 0) {
this.pointer--;
this.render(this.medias[this.pointer]);
} else {
console.error("Reach the start of the medias");
}
}
getCurrentMedia(){
this.medias[this.pointer];
}
getCurrentThumb(){
return F.q(`[data-index="${this.pointer}"]`)
}
/**
*
* @param {Media[]} medias
*/
addMedias(medias) {
const mediasTemp = [...this.medias, ...medias];
// @ts-ignore
this.medias = mediasTemp;
this.thumbsGallery.updateMedias(mediasTemp);
}
async reloadMediaSrcFromMedias(index) {
await this.medias[index].reloadSrc();
}
async reloadMediaSrc(media) {
await media.reloadSrc();
}
scrollIntoCurrentMedia(){
this.getCurrentThumb().scrollTo();
this.thumbsGallery.scrollToThumb(modalObj.pointer)
}
}
class Media {
/**
* @param {string} _page This is the page of the media. Not the real src.
* @param {string} _type
* @param {string} _thumb
*/
constructor(_page, _type, _thumb, dp) {
this.page = _page;
this.type = _type;
this.thumb = _thumb;
this.dp = dp;
this.getSrc().then((src) => {
this.src = src;
});
}
async getSrc() {
const response = await fetch(this.page);
if ([202, 200].includes(response.status)) {
const body = await response.text();
const dp = new DOMParser();
const pageDocument = dp.parseFromString(body, "text/html");
const video = F.q("video source", pageDocument);
const image = F.q(".flexi img", pageDocument);
if (video) {
this.type = "video";
// @ts-ignore
return video.src;
} else {
this.type = "image";
// @ts-ignore
return image.src;
}
} else {
return "Retry";
}
}
async reloadSrc() {
this.src = await this.getSrc();
}
}
class InfinityScroll {
/**
* @param {Document} document
* @param {DOMParser} _dp
*/
constructor(document, _dp) {
this.nextSended = false;
this.pagesParsed = [this.getPageNumber(document)];
this.nextPage = this.getNextPageHref(document);
this.dp = _dp;
}
/**
* @param {Document} doc
*/
getPageNumber(doc) {
return parseInt(doc.querySelector("#paginator div b").innerHTML);
}
/**
* @param {Document} doc
*/
getNextPageHref(doc) {
const nextNode = doc.querySelector('#paginator [alt="next"]');
// @ts-ignore
return nextNode ? nextNode.href : null;
}
async getNextPage() {
console.log("getNextPage");
if (!this.nextPage) {
// @ts-ignore
this.nextPage = F.q('#paginator [alt="next"]').href;
}
const response = await fetch(this.nextPage);
if([204,202,200,201].includes(response.status)){
const body = await response.text();
const dp = new DOMParser();
const pageDocument = dp.parseFromString(body, "text/html");
const pageNum = this.getPageNumber(pageDocument);
this.nextPage = this.getNextPageHref(pageDocument);
if (!this.pagesParsed.includes(pageNum)) { // remove the page allready parsed
this.pagesParsed.push(pageNum);
return pageDocument;
} else {
return false;
}
}else{
await this.sleep(500);
return await this.getNextPage();
}
}
sleep(ms){
return new Promise(resolve=>setTimeout(resolve,ms));
}
/**
*
* @param {Document} document
* @param {number} pad The length of medias in the Modal Object
* @returns {Media[]}
*/
getMedias(document, pad) {
const thumbsNode = F.qa("#content .thumb", document);
const medias = [];
const nodes = [];
//const pad = this.medias? this.medias.length : 0;
for (let i = 0; i < thumbsNode.length; i++) {
const node = thumbsNode[i];
/**
* @type {HTMLImageElement} img
*/
// @ts-ignore
const img = F.q("img", node);
const title = img.title;
const anchor = node.querySelector("a");
const media = new Media(
anchor.href,
/animated|video/.test(title) ? "video" : "image",
img.src,
this.dp
);
anchor.dataset.index = (i + pad).toString();
img.dataset.index = (i + pad).toString();
//node.dataset.index = (i+pad).toString();
medias.push(media);
nodes.push(node);
}
this.addElementsToCurrentContentView(nodes); // async
return medias;
}
async addElementsToCurrentContentView(nodes) {
for (const node of nodes) {
this.clickFunction(node);
F.q(".content").insertBefore(node, F.q("#paginator"));
}
}
clickFunction(element){
element.addEventListener("click", (e) => {
e.preventDefault();
const index = e.target.dataset.index
? e.target.dataset.index
: modalObj.pointer;
modalObj.pointer = index;
modalObj.render(modalObj.medias[index]);
});
}
}
class ThumbsGallery{
/**
* @param {Media[]} medias
*/
constructor(medias){
this.medias = medias;
}
/**
* @param {number} index
*/
scrollToThumb(index){
F.q('#thumbGallery').scrollTop = F.q(`.gallery-item[data-index="${index}"]`).offsetTop
}
/**
* @param {Media[]} medias
*/
updateMedias(medias){
this.medias = medias;
F.q('#thumbGallery').innerHTML = `<ul>${this.buildItems()}</ul>`;
}
render(){
return `<div id="thumbGallery"><ul>${this.buildItems()}</ul></div>`
}
buildItems(){
let li = ''
this.medias.forEach((e,i)=>{
li+=`<li class="gallery-item" data-index="${i}" onclick="{document.modalObj.goToMedia(${i})}","_blank")}">
<img src="${e.thumb}"\\>
</li>`
})
return li;
}
}
const dp = new DOMParser();
const F = new Falaz();
let modalObj;
const loadingSVG = "https://samherbert.net/svg-loaders/svg-loaders/puff.svg";
(function () {
"use strict";
modalObj = new Modal(document, dp);
// @ts-ignore
document.modalObj = modalObj;
F.qa(".content .thumb").forEach((element) => {
modalObj.infinityScroll.clickFunction(element);
});
document.addEventListener("keydown", (e) => {
if (e.key == "ArrowRight") {
modalObj.nextMedia();
modalObj.scrollIntoCurrentMedia();
} else if (e.key == "ArrowLeft") {
modalObj.prevMedia();
modalObj.scrollIntoCurrentMedia();
} else if (e.key == "Escape") {
modalObj.close();
}
});
// @ts-ignore
document.addEventListener("scroll", (e) => {
if (!modalObj.visible){
const inner = window.innerHeight;
if (
window.scrollY + inner >
document.documentElement.scrollHeight - inner * 2
) {
modalObj.getNextPage();
}
}else{
e.preventDefault();
modalObj.scrollIntoCurrentMedia();
}
});
})();