A simple quick and dirty image viewer for gelbooru.com and rule34.xxx supports all formats from gif to webm.
// ==UserScript==
// @name Gelbooru/Rule34xxx Viewer/Downloader
// @version 1.0
// @description A simple quick and dirty image viewer for gelbooru.com and rule34.xxx supports all formats from gif to webm.
// @author PineappleLover69
// @include https://gelbooru.com*
// @include https://rule34.xxx*
// @include http://gelbooru.com*
// @include http://rule34.xxx*
// @namespace https://greasyfork.org/users/120106
// ==/UserScript==
(function() {
var postTop = document.getElementsByClassName("content")[0];
var yupStuff = document.getElementsByClassName("yup")[0];
var posts = document.getElementById("post-list");
//imgList = posts.childNodes[2].childNodes[0].childNodes;
imgList = document.getElementsByClassName("thumb");
var postSources = Array(imgList.length);
BatchApiCall();
isRule34 = false;
if(document.URL.includes("rule34.xxx")){
imgList = posts.childNodes[2].childNodes[3].childNodes;
isRule34 = true;
}
console.log(imgList);
imgIndex = 0;
var imgOpened = false;
for(i = 0; i < imgList.length;){
try{
//console.log(imgList[i].getAttribute("id"));
//console.log(imgList[i].childNodes[0].getAttribute("href"));
imgList[i].setAttribute("openRef", imgList[i].childNodes[0].getAttribute("href"));
imgList[i].childNodes[0].removeAttribute("href");
imgList[i].childNodes[0].addEventListener("click", ImgClick);
i++;
}catch(ex){
imgList[i].remove();
}
}
function ImgClick(e){
if(!imgOpened)
ImgView();
var child = e.target.parentNode.parentNode;
var parent = child.parentNode;
// The equivalent of parent.children.indexOf(child)
imgIndex = Array.prototype.indexOf.call(parent.children, child);
//console.log(imgIndex);
SetImg();
imgViewBtn.scrollIntoView();
}
imgViewBtn = document.createElement("button");
imgViewBtn.innerHTML = "Image View";
imgViewBtn.onclick = ImgView;
var dlAllBtn = document.createElement("button");
dlAllBtn.innerHTML = "Download All";
dlAllBtn.onclick = dlAll;
//imgViewBtn.setAttribute("class", "active");
postTop.insertBefore(dlAllBtn, postTop.childNodes[0]);
postTop.insertBefore(imgViewBtn, postTop.childNodes[0]);
function ImgView(){
if(imgOpened)
return;
holdDiv = document.createElement("div");
holdDiv.setAttribute("align", "center");
postTop.insertBefore(holdDiv, postTop.childNodes[2]);
imgViewImg = document.createElement("img");
imgViewImg.setAttribute("height", 650);
holdDiv.appendChild(imgViewImg);
videoImg = document.createElement("video");
videoImg.setAttribute("height", 650);
videoImg.setAttribute("autoplay", true);
videoImg.setAttribute("controls", true);
videoImg.setAttribute("loop", true);
videoImg.setAttribute("hidden", true);
holdDiv.appendChild(videoImg);
preloadImg1 = document.createElement("img");
preloadImg2 = document.createElement("img");
preloadImg1.setAttribute("hidden", true); preloadImg2.setAttribute("hidden", true);
holdDiv.appendChild(preloadImg1); holdDiv.appendChild(preloadImg2);
preloadImg3 = document.createElement("img");
preloadImg4 = document.createElement("img");
preloadImg3.setAttribute("hidden", true); preloadImg4.setAttribute("hidden", true);
holdDiv.appendChild(preloadImg3); holdDiv.appendChild(preloadImg4);
imgViewImg.addEventListener('load', DoPreload);
//imgViewImg.addEventListener("error", WasError);
//videoImg.addEventListener("error", WasError);
prevBtn = document.createElement("button");
prevBtn.innerHTML = "Prev"; prevBtn.onclick = PrevImg;
nextBtn = document.createElement("button");
nextBtn.innerHTML = "Next"; nextBtn.onclick = NextImg;
dlBtn = document.createElement("button");
dlBtn.innerHTML = "Download"; dlBtn.onclick = DownloadCurrent;
opBtn = document.createElement("button");
opBtn.innerHTML = "Open Src"; opBtn.onclick = OpenSrc;
spacer = document.createElement("img");
spacer.setAttribute("width", 30);
spacer2 = document.createElement("img");
spacer2.setAttribute("width", 30);
spacer3 = document.createElement("img");
spacer3.setAttribute("width", 30);
holdDiv.appendChild(document.createElement("br"));
holdDiv.appendChild(prevBtn);
holdDiv.appendChild(spacer);
holdDiv.appendChild(dlBtn);
holdDiv.appendChild(spacer2);
holdDiv.appendChild(opBtn);
holdDiv.appendChild(spacer3);
holdDiv.appendChild(nextBtn);
imgOpened = true;
//console.log(isRule34);
if(isRule34){
document.getElementById("header").remove();
}else{
document.getElementsByClassName("header")[0].remove();
document.getElementsByClassName("submenu")[0].remove();
}
document.addEventListener("keydown", keyInput);
SetImg();
}
function BatchApiCall(){
var urlItems = getJsonFromUrl();
var pid = 0;
if(urlItems.pid)
pid = urlItems.pid / 42;
var tags = document.getElementById("tags").value;
var limit = imgList.length;
var request = "/index.php?page=dapi&s=post&q=index&limit=" + limit + "&tags=" + tags + "&pid=" + pid;
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
var response = xmlToJson(this.responseXML);
for(var i = 0; i < limit; i++){
if(!response.posts.post[i])
break;
postSources[i] = response.posts.post[i]["@attributes"].file_url;
}
}
};
xhttp.open("GET", request, true);
xhttp.send();
}
function getJsonFromUrl() {
var query = location.search.substr(1);
var result = {};
query.split("&").forEach(function(part) {
var item = part.split("=");
result[item[0]] = decodeURIComponent(item[1]);
});
return result;
}
function OpenSrc(){
window.open(imgList[imgIndex].getAttribute("openRef"));
}
function PrevImg(){
imgIndex--;
if(imgIndex < 0)
imgIndex = imgList.length - 1;
SetImg();
}
function NextImg(){
imgIndex++;
if(imgIndex >= imgList.length)
imgIndex = 0;
SetImg();
}
function SetCurrentSrc(){
currentSrc = GetSrcForImg(imgIndex);
}
function GetSrcForImg(getIndex){
if(postSources[getIndex]){
return postSources[getIndex];
} else {
var tmpSrc = imgList[getIndex].id;
tmpSrc = tmpSrc.replace("s", "");
var thing = JsonHttpRequest("/index.php?page=dapi&s=post&q=index&id=" + tmpSrc.toString());
tmpSrc = thing.posts.post["@attributes"].file_url;
postSources[getIndex] = tmpSrc;
return tmpSrc;
}
}
function JsonHttpRequest(urlRequest){
var xhr = new XMLHttpRequest();
xhr.open("GET", urlRequest, false);
xhr.send();
return xmlToJson(xhr.responseXML);
}
function SetImg(){
SetCurrentSrc();
var dI = currentSrc.lastIndexOf(".");
var fileExt = currentSrc.substring(dI + 1);
if(fileExt.toLowerCase() == "webm"){
videoImg.setAttribute("src", currentSrc);
videoImg.removeAttribute("hidden");
videoImg.play();
imgViewImg.setAttribute("hidden", true);
setTimeout(DoPreload, 200);
}else{
imgViewImg.setAttribute("src", currentSrc);
imgViewImg.removeAttribute("hidden");
videoImg.setAttribute("hidden", true);
videoImg.pause();
}
}
function DoPreload(){
var preIndex = imgIndex + 1;
if(preIndex >= imgList.length)
preIndex = 0;
preloadImg1.src = GetSrcForImg(preIndex);
//preIndex++;
//if(preIndex >= imgList.length)
// preIndex = 0;
//preloadImg2.src = GetSrcForImg(preIndex);
preIndex = imgIndex - 1;
if(preIndex < 0)
preIndex = imgList.length - 1;
preloadImg3.src = GetSrcForImg(preIndex);
//preIndex--;
//if(preIndex < 0)
// preIndex = imgList.length - 1;
//preloadImg4.src = GetSrcForImg(preIndex);
}
function DownloadCurrent(){
if(!isRule34)
SetCurrentSrc();
var dI = currentSrc.lastIndexOf(".");
var uI = currentSrc.lastIndexOf("/") + 5;
var fileExt = currentSrc.substring(dI);
var imgName = "tags-" + document.getElementById("tags").value + " ";
if(document.getElementById("tags").value === ""){
imgName = currentSrc.substring(uI, dI);
}else{
imgName += currentSrc.substring(uI, dI);
}
imgName += " id-" + imgList[imgIndex].childNodes[0].getAttribute("id");
imgName += fileExt;
//console.log(imgName);
var dl = document.createElement("a");
dl.setAttribute("href", currentSrc);
dl.setAttribute("download", imgName);
dl.click(); dl.remove();
document.body.focus();
}
function dlAll(){
var prevIndex = imgIndex;
if(isRule34){
}else{
for(imgIndex = 0; imgIndex < imgList.length;){
try{
DownloadCurrent();
imgIndex++;
}catch(ex){
console.log(ex);
imgIndex++;
//imgList[imgIndex].remove();
}
}
}
imgIndex = prevIndex;
}
var tagE = document.getElementById("tags");
function keyInput(e){
if(document.activeElement != tagE){
if(e.keyCode === 32){
e.preventDefault();
return false;
}
if(e.keyCode === 37){
e.preventDefault();
PrevImg();
return false;
}
if(e.keyCode === 39){
e.preventDefault();
NextImg();
return false;
}
if(e.keyCode === 40){
e.preventDefault();
DownloadCurrent();
return false;
}
}
}
})();
// Changes XML to JSON
function xmlToJson(xml) {
// Create the return object
var obj = {};
if (xml.nodeType == 1) { // element
// do attributes
if (xml.attributes.length > 0) {
obj["@attributes"] = {};
for (var j = 0; j < xml.attributes.length; j++) {
var attribute = xml.attributes.item(j);
obj["@attributes"][attribute.nodeName] = attribute.nodeValue;
}
}
} else if (xml.nodeType == 3) { // text
obj = xml.nodeValue;
}
// do children
if (xml.hasChildNodes()) {
for(var i = 0; i < xml.childNodes.length; i++) {
var item = xml.childNodes.item(i);
var nodeName = item.nodeName;
if (typeof(obj[nodeName]) == "undefined") {
obj[nodeName] = xmlToJson(item);
} else {
if (typeof(obj[nodeName].push) == "undefined") {
var old = obj[nodeName];
obj[nodeName] = [];
obj[nodeName].push(old);
}
obj[nodeName].push(xmlToJson(item));
}
}
}
return obj;
}