Embedded Image Viewer

Embedds the clicked Image on the Current Site, so you can view it without loading the submission Page
As of 2023-03-17. See the latest version.
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Wrap lines
// ==UserScript==
// @name        Embedded Image Viewer
// @namespace   Violentmonkey Scripts
// @match       *://*.furaffinity.net/browse/*
// @match       *://*.furaffinity.net/gallery/*
// @match       *://*.furaffinity.net/search/*
// @match       *://*.furaffinity.net/favorites/*
// @match       *://*.furaffinity.net/controls/favorites/*
// @match       *://*.furaffinity.net/controls/submissions/*
// @match       *://*.furaffinity.net/msg/submissions/*
// @exclude-match *://*.furaffinity.net/view/*
// @grant       none
// @version     1.3
// @author      Midori Dragon
// @description Embedds the clicked Image on the Current Site, so you can view it without loading the submission Page
// @icon        https://www.furaffinity.net/themes/beta/img/banners/fa_logo.png?v2
// @homepageURL https://greatest.deepsurf.us/de/scripts/458971-embedded-image-viewer
// @supportURL  https://greatest.deepsurf.us/de/scripts/458971-embedded-image-viewer/feedback
// @license     MIT
// ==/UserScript==
 
// jshint esversion: 8
 
//User Options:
const loadingSpinSpeed = 100; //Sets the spinning speed of the loading animation in milliseconds
 
 
let isShowing = false;
let notClosingElemsArr = [];
 
document.addEventListener("click", function(event) {
  if (isShowing && !notClosingElemsArr.includes(event.target.id)) {
    event.preventDefault();
    document.getElementById("embeddedElem").remove();
    isShowing = false;
  }
});
 
for (const figure of document.getElementsByTagName("figure")) {
  figure.addEventListener("click", function(event) {
    if (!event.ctrlKey && !event.target.id.includes("favbutton") && event.target.type != "checkbox") {
      if (event.target.href)
        return;
      else
        event.preventDefault();
      if (!isShowing)
        showImage(figure);
    }
  });
}
 
async function showImage(figure) {
  const ddmenu = document.getElementById("ddmenu");
  const imageID = figure.id.substring(figure.id.indexOf("-") + 1);
  const favdoc = await getHTML("https://www.furaffinity.net/view/" + imageID);
 
  await createElements(ddmenu, favdoc, imageID, figure);
 
  isShowing = true;
}
 
async function createElements(ddmenu, favdoc, imageID, figure) {
  const margin = 20;
 
  let embeddedElem = document.createElement("div");
  embeddedElem.id = "embeddedElem";
  embeddedElem.style.position = "fixed";
  embeddedElem.style.zIndex = "999999";
  embeddedElem.style.width = window.innerWidth + "px";
  embeddedElem.style.height = window.innerHeight + "px";
  embeddedElem.style.background = "rgba(30,33,38,.65)";
 
  let backgroundElem = document.createElement("div");
  backgroundElem.id = "embeddedBackgroundElem";
  notClosingElemsArr.push(backgroundElem.id);
  backgroundElem.style.position = "fixed";
  backgroundElem.style.display = "flex";
  backgroundElem.style.flexDirection = "column";
  backgroundElem.style.left = "50%";
  backgroundElem.style.transform = "translate(-50%, 0%)";
  backgroundElem.style.marginTop = margin + "px";
  backgroundElem.style.padding = margin + "px";
  backgroundElem.style.background = "rgba(30,33,38,.90)";
  backgroundElem.style.borderRadius = "10px";
 
  let submissionContainer = document.createElement("a");
  submissionContainer.id = "embeddedSubmissionContainer";
  notClosingElemsArr.push(submissionContainer.id);
  submissionContainer.href = favdoc.querySelector('meta[property="og:url"]').content;
 
  let submissionImg = favdoc.getElementById("submissionImg");
  submissionImg.id = "embeddedSubmissionImg";
  notClosingElemsArr.push(submissionImg.id);
  submissionImg.removeAttribute("data-fullview-src");
  submissionImg.removeAttribute("data-preview-src");
  submissionImg.style.maxWidth = "inherit";
  submissionImg.style.maxHeight = "inherit";
  submissionImg.style.maxWidth = window.innerWidth - margin * 2 + "px";
  submissionImg.style.maxHeight = window.innerHeight - ddmenu.clientHeight - 38 * 2 - margin * 2 - 100 + "px";
  submissionImg.style.borderRadius = "10px";
  submissionContainer.appendChild(submissionImg);
 
  backgroundElem.appendChild(submissionContainer);
 
  let buttonsContainer = document.createElement("div");
  buttonsContainer.id = "embeddedButtonsContainer";
  notClosingElemsArr.push(buttonsContainer.id);
  buttonsContainer.style.marginTop = "20px";
  buttonsContainer.style.marginLeft = "20px";
  buttonsContainer.style.marginRight = "20px";
 
  let embeddedFavButton = document.createElement("a");
  embeddedFavButton.id = "embeddedFavButton";
  notClosingElemsArr.push(embeddedFavButton.id);
  embeddedFavButton.type = "button";
  embeddedFavButton.className = "button standard mobile-fix";
 
  let favlink;
  //Fast Favoriter 2 integration <start>
  const favButton = figure.querySelector('[type="button"][class="button standard mobile-fix"]');
  if (favButton) {
    favlink = favButton.getAttribute("favlink");
    console.log(favlink);
    embeddedFavButton.textContent = favButton.textContent;
  } else { //Fast Favoriter 2 integration <end>
    favlink = await getfavlink(favdoc);
    if (favlink.includes("unfav"))
      embeddedFavButton.textContent = "-Fav";
    else
      embeddedFavButton.textContent = "+Fav";
  }
  embeddedFavButton.style.marginLeft = "4px";
  embeddedFavButton.style.marginRight = "4px";
  embeddedFavButton.onclick = function() {
    let erotation = rotateText(embeddedFavButton);
    console.log(favlink)
    favImage(figure, favlink, '', erotation);
  };
  buttonsContainer.appendChild(embeddedFavButton);
 
  let downloadButton = document.createElement("a");
  downloadButton.id = "embeddedDownloadButton";
  notClosingElemsArr.push(downloadButton.id);
  downloadButton.type = "button";
  downloadButton.className = "button standard mobile-fix";
  downloadButton.textContent = "Download";
  downloadButton.style.marginLeft = "4px";
  downloadButton.style.marginRight = "4px";
  const downloadLink = await getDownloadLink(favdoc);
  downloadButton.href = downloadLink;
  downloadButton.download = downloadLink.substring(downloadLink.lastIndexOf("/") + 1);
  buttonsContainer.appendChild(downloadButton);
 
  let closeButton = document.createElement("a");
  closeButton.id = "embeddedCloseButton";
  notClosingElemsArr.push(closeButton.id);
  closeButton.type = "button";
  closeButton.className = "button standard mobile-fix";
  closeButton.textContent = "Close";
  closeButton.style.marginLeft = "4px";
  closeButton.style.marginRight = "4px";
  closeButton.onclick = function() {
    ddmenu.removeChild(embeddedElem);
    isShowing = false;
  };
  buttonsContainer.appendChild(closeButton);
 
  backgroundElem.appendChild(buttonsContainer);
 
  embeddedElem.appendChild(backgroundElem);
 
  ddmenu.appendChild(embeddedElem);
}
 
async function favImage(figure, favlink, rotation, erotation) {
  if (!figure)
    return;
 
  let footer = document.getElementById("footer");
  let iframe = document.createElement("iframe");
  iframe.id = "favIFrame";
  iframe.src = favlink;
  iframe.style.display = "none";
  iframe.addEventListener("load", async function() {
    let favdoc = iframe.contentDocument;
    footer.removeChild(iframe);
    let imageLink = figure.childNodes[0].childNodes[0].childNodes[0].href;
    favlink = await getfavlink(favdoc);
    if (!favlink) {
      checkFavLinkMissingReason(figure, favdoc);
      return;
    }
    changeFavButtonLink(favlink, figure, rotation, erotation);
  });
  footer.appendChild(iframe);
}
 
async function checkFavLinkMissingReason(figure, favdoc) {
  favOnError(figure);
  let blocked = favdoc.getElementById("standardpage").querySelector('div[class="redirect-message"]');
  if (blocked && blocked.textContent.includes("blocked"))
    alert(blocked.textContent);
}
 
async function favOnError(figure) {
  let embeddedFavButton = document.getElementById("embeddedFavButton");
  if (embeddedFavButton)
    embeddedFavButton.textContent = "x";
 
  //Fast Favoriter 2 integration <start>
  let favButton = figure.querySelector('[type="button"][class="button standard mobile-fix"]');
  if (favButton)
    favButton.textContent = "x";
  //Fast Favoriter 2 integration <end>
}
 
async function changeFavButtonLink(favlink, figure, rotation, erotation) {
  let embeddedFavButton = document.getElementById("embeddedFavButton");
  if (embeddedFavButton) {
    erotation();
    if (favlink.includes("unfav"))
      embeddedFavButton.textContent = "-Fav";
    else
      embeddedFavButton.textContent = "+Fav";
    embeddedFavButton.onclick = function() {
      erotation = rotateText(embeddedFavButton);
      favImage(figure, favlink, rotation, erotation);
    };
  }
 
  //Fast Favoriter 2 integration <start>
  let favButton = figure.querySelector('[type="button"][class="button standard mobile-fix"]');
  if (favButton) {
    if (rotation)
      rotation();
    if (favlink.includes("unfav"))
      favButton.textContent = "-Fav";
    else
      favButton.textContent = "+Fav";
    favButton.onclick = function() {
      rotation = rotateText(favButton);
      favImage(figure, favlink, rotation, erotation);
    };
  }
  //Fast Favoriter 2 integration <end>
}
 
function rotateText(element) {
  let isRotating = true;
  const characters = [ "◜", "◠", "◝", "◞", "◡", "◟" ];
  let index = 0;
 
  function update() {
    if (!isRotating) return;
    element.textContent = characters[index % characters.length];
    index++;
    setTimeout(update, loadingSpinSpeed);
  }
  if (!isRotating) return;
  update();
 
  return function stopRotation() {
    isRotating = false;
  };
}
 
async function getfavlink(subdoc) {
  let buttons = subdoc.querySelectorAll('a[class="button standard mobile-fix"]');
  for (const button of buttons)
    if (button.textContent.includes("Fav") && button.textContent.length <= 4)
      return button.href;
}
 
async function getDownloadLink(subdoc) {
  let buttons = subdoc.querySelectorAll('a[class="button standard mobile-fix"]');
  for (const button of buttons)
    if (button.textContent.includes("Download"))
      return button.href;
}
 
async function getHTML(url) {
  try {
    const response = await fetch(url);
    const html = await response.text();
    const parser = new DOMParser();
    const doc = parser.parseFromString(html, "text/html");
    return doc;
  } catch (error) {
    console.error(error);
  }
}