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Gelbooru Image Viewer

Adds a fullscreen image view option when you click on images

Fra 26.05.2017. Se den seneste versjonen.

// ==UserScript==
// @id             gelbooru-slide
// @name           Gelbooru Image Viewer
// @version        1.9.6.4
// @namespace      intermission
// @author         intermission
// @license        WTFPL; http://www.wtfpl.net/about/
// @description    Adds a fullscreen image view option when you click on images
// @include        http://gelbooru.com/*
// @include        https://gelbooru.com/*
// @include        http://gelbooru.com/
// @include        https://gelbooru.com/
// @include        http://rule34.xxx/*
// @include        https://rule34.xxx/*
// @include        http://rule34.xxx/
// @include        https://rule34.xxx/
// @include        http://e621.net/*
// @include        https://e621.net/*
// @include        http://e621.net/
// @include        https://e621.net/
// @include        http://*.booru.org/*
// @include        https://*.booru.org/*
// @include        http://*.booru.org/*
// @include        https://*.booru.org/*
// @include        http://*.paheal.net/
// @include        https://*.paheal.net/
// @include        http://*.paheal.net/*
// @include        https://*.paheal.net/*
// @include        http://*.sankakucomplex.com/*
// @include        https://*.sankakucomplex.com/*
// @exclude        http://www.sankakucomplex.com/*
// @exclude        https://www.sankakucomplex.com/*
// @run-at         document-start
// @grant          GM_registerMenuCommand
// @grant          GM_xmlhttpRequest
// ==/UserScript==

/* This program is free software. It comes without any warranty, to
 * the extent permitted by applicable law. You can redistribute it
 * and/or modify it under the terms of the Do What The Fuck You Want
 * To Public License, Version 2, as published by Sam Hocevar. See
 * http://www.wtfpl.net/ for more details. */

(function(d, w, stor){
  "use strict";
  var domain = location.hostname.match(/[^\.]+\.[^\.]+$/)[0], ns = "gelbooru-slide", toggle = stor[ns] === "true", notification, Pos, Menu, Btn, slideshow, Main, Prog, Hover, paheal = domain == "paheal.net" ? 20 : 0, passive = { passive: true };

  if (!stor[ns]) stor[ns] = "false";

  GM_registerMenuCommand("Current image mode: " + (toggle ? "Always original size" : "Sample only"), () => {
    if (domain !== "booru.org") stor[ns] = toggle ? "false" : "true";
    return location.reload();
  });

  if (stor[ns + "-firstrun"] != "1.8.8") {
    (function(l){
      var a, r = /^gelbooru-slide./;
      for (a in l)
        if (r.test(a)) l.removeItem(a);
    }(stor));
    stor[ns + "-firstrun"] = "1.8.8";
  }

  const $ = function(a, b) {
    return [...(b || d).querySelectorAll(a)];
  };

  $.extend = function(obj, props) {
    var key, val;
    for (key in props) {
      if (!props.hasOwnProperty(key)) continue;
      val = props[key];
      obj[key] = val;
    }
  };

  $.extend($, {
    cache(id, b) {
      var val = toggle ? "original" : "sample", ret, obj, temp;
      if (!b) {
        try { ret = JSON.parse(stor[ns + id])[val]; } catch(e) {}
        ret = ret || "loading";
      } else {
        try { temp = JSON.parse(stor[ns + id]); } catch(e) {}
        obj = temp || {};
        obj[val] = b;
        stor[ns + id] = JSON.stringify(obj);
        ret = b;
      }
      return ret;
    },
    base: a => a.match(Main.r[5]),
    current: src => $("a[data-id] > img[src*='" + $.base(src || Main.el.dataset.src) + "']")[0].parentNode,
    find(el, method) {
      var a;
      el = el.parentNode;
      do {
        try {
          el = el[(method ? "next" : "previous") + "ElementSibling"];
          a = el.querySelector("a[data-full]");
        } catch(err) {
          return false;
        }
        if (a) break;
        a = false;
      } while(!a);
      return a;
    },
    preload() {
      var curr = $.current();
      Main.req($.find(curr, true));
      return Main.req($.find(curr, false));
    },
    keyDown(e) {
      var move;
      if (slideshow) return;
      switch(e.keyCode) {
        case 32: case 39:
          move = true;
          break;
        case 37:
          move = false;
          break;
        case 38:
          if (e.event) Menu.fn(e.event);
          else w.location = $.current().href;
          return;
        case 40:
          e.preventDefault();
          return Main.el.click();
      }
      if (typeof move != "undefined") {
        e = $.find($.current(), move);
        if (e) {
          if (Prog.el) {
            Prog.el.classList.remove("progdone");
            Prog.el.style.width = 0;
          }
          Main.slide(e.firstElementChild.src);
          Pos.fn(move);
          $.preload();
        } else if (!notification) {
          notification = $.c("div");
          notification.classList.add("nomoreimages");
          notification.setAttribute("style", "background: linear-gradient(to " + (move ? "right" : "left") + ", transparent, rgba(255,0,0,.5));" + (move ? "right" : "left") + ": 0;");
          d.body.insertBefore(notification, d.body.lastElementChild);
        }
      } return;
    },
    c: c => d.createElement(c),
    r: fn => d.addEventListener("DOMContentLoaded", fn, { passive: true, once: true }),
    rm: (el, u) => (el && el.parentNode.removeChild(el)) && u,
    eval(text) {
      let script = $.c("script");
      script.appendChild(d.createTextNode(text));
      d.body.appendChild(script);
      $.rm(script);
    }
  });

  Pos = {
    fn(a) {
      var no, thumbs, el = Pos.el;
      if (typeof a === "boolean") {
        no = el.firstElementChild;
        no.innerHTML = Number(no.innerHTML) + (a ? 1 : -1);
        if (Menu.el)
          for (let a of $("a", Menu.el)) a.href = $.current().href;
      } else {
        if (Main.el && !el) {
          thumbs = $(".thumb a[data-full]");
          Pos.el = el = $.c("div");
          el.insertAdjacentHTML("beforeend", "<span>" + (thumbs.indexOf($.current()) + 1) + "</span> / " + thumbs.length);
          el.className = "posel";
          Main.el.insertAdjacentElement("afterend", el);
        } else if (el) Pos.el = $.rm(el);
      } return;
    }
  };

  Menu = {
    fn(e) {
      var _l = e.clientX + 1, _t = e.clientY + 1,
        left = (_l > w.innerWidth - 139 ? (_l - 139) : _l) + "px",
        top = (_t > w.innerHeight - 48 ? (_t - 48) : _t) + "px",
        href, el = Menu.el;
      if (el) {
        el.removeAttribute("class");
        el.style.left = left;
        el.style.top = top;
        setTimeout(() => el.classList.add("menuel"), 10);
      } else {
        href = $.current().href;
        Menu.el = el = $.c("div");
        el.id = "menuel";
        el.insertAdjacentHTML("beforeend", '<a href="'+href+'" style="margin-bottom: 2px">Open in This Tab</a><a href="'+href+'" target="_blank">Open in New Tab</a>');
        el.style.left = left;
        el.style.top = top;
        d.body.appendChild(el);
        el.classList.add("menuel");
      }
      return;
    }
  };

  Btn = {
    fn() {
      var sel, el = Btn.el;
      sel = "this.previousElementSibling.firstElementChild";
      if (el) {
        clearTimeout(Btn.hide_timer);
        Btn.clear();
        Btn.el = $.rm(Btn.el);
        Hover.el.removeAttribute("style");
      } else {
        Btn.el = el = $.c("div");
        el.setAttribute("style", 'opacity: .7;');
        el.className = "slideshow";
        el.insertAdjacentHTML('beforeend', '<span title="Slideshow">' + Btn.svg_play + "</span>" + `<div style="display: none;padding: 10px 0">Options<hr><label>Loop:&nbsp;<input type="checkbox" checked></label>&nbsp;<label onclick="${sel}.checked=true;${sel}.disabled=!${sel}.disabled">Shuffle:&nbsp;<input type="checkbox"></label><br>Interval: <input type="number" value="5" style="width: 100px"></div>`);
        Btn.svg_state = true;
        el.firstElementChild.onclick = Btn.cb;
        d.body.appendChild(el);
      }
    },
    clear: () => clearTimeout(Number(Btn.el.dataset.timer) || 0),
    cb: (function() {
      var el, sel = ".thumb a[data-full]", options,
      _fnS = () => {
        el.dataset.timer = setTimeout(_fnT, options[2]);
      }, _fnT = () => {
        var _el;
        if (thumbs.length === 0) thumbs = $(sel);
        if (options[1]) {
          thumbs.splice(thumbs.indexOf($.current()), 1);
          _el = thumbs[Math.random() * thumbs.length & -1];
        } else _el = $.find($.current(), true);
        if (!_el && options[0]) _el = $(sel)[0];
        if (!_el) return Btn.cb();
        Main.el.addEventListener("load", _fnS, { passive: true, once: true });
        Main.slide(_el.firstElementChild.src);
      }, thumbs, orig;
      return function () {
        el = Btn.el;
        Pos.fn();
        slideshow = !!Btn.svg_state;
        el.firstElementChild.innerHTML = (Btn.svg_state = !Btn.svg_state) ? Btn.svg_play : Btn.svg_pause;
        if (slideshow) {
          thumbs = [];
          options = $("div input", el).map(a =>
            a.type == "number" ? (+a.value >= 1 ? +a.value : 1) * 1E3 : a.checked
          );
          el.dataset.timer = setTimeout(_fnT, options[2]);
          el.style.opacity = ".4";
          Hover.el.setAttribute("style", "display: none !important");
          orig = d.body.getAttribute("style");
          d.addEventListener("mousemove", Btn.hide);
        } else {
          Btn.clear();
          el.style.opacity = ".7";
          el.removeAttribute("data-timer");
          Hover.el.removeAttribute("style");
          Hover.center($.current().firstElementChild.src);
          d.removeEventListener("mousemove", Btn.hide);
          clearTimeout(Btn.hide_timer);
          if (orig) b.body.setAttribute("style", orig);
          else d.body.removeAttribute("style");
        }
      };
    })(),
    hide() {
      var b = d.body;
      b.style.cursor = "";
      clearTimeout(Btn.hide_timer);
      Btn.hide_timer = setTimeout(b => b.style.cursor = "none", 5E3, b);
    },
    hide_timer: -1,
    svg_play: '<svg width="50" height="50" version="1.1" xmlns="http://www.w3.org/2000/svg"><rect rx="5" height="48" width="48" y="1" x="1" fill="#fff" /><polygon fill="#000" points="16 12 16 38 36 25" /></svg>',
    svg_pause: '<span><svg width="50" height="50" xmlns="http://www.w3.org/2000/svg"><rect fill="#fff" x="1" y="1" width="48" height="48" rx="5" /><rect fill="#000" x="12" y="12" width="10" height="26" /><rect fill="#000" x="28" y="12" width="10" height="26" /></svg>'
  };

  Prog = {
    check: id => Main.el.dataset.id == id,
    load(ext, id, e) {
      var blob, type, el = Prog.el, img = Main.el;
      delete Prog.reqs[id];
      if (!el) throw Error("There was an event order issue with GM_xmlhttpRequest");
      if (!(e.status === 200 || e.status === 304) || !Main.r[5].test(e.finalUrl))
        return Prog.error(id);
      else {
        let blob_url;
        type = "image/" + ext.replace("jpeg", "jpg");
        blob = new Blob([e.response], {type: type});
        blob_url = w.URL.createObjectURL(blob);
        $("a[data-id='" + id + "']")[0].dataset.blob = blob_url;
        if (img && Prog.check(id)) {
          el.classList.add("progdone");
          img.src = blob_url
        }
      }
    },
    progress(id, e) {
      var el = Prog.el;
      if (!el) {
        Prog.el = el = $.c("span");
        el.setAttribute("style", "width:0");
        el.classList.add("progress");
        d.body.appendChild(el);
      }
      if (e && e.lengthComputable && Main.el && Prog.check(id) && el) {
        el.classList.remove("progfail");
        el.style.width = (id in Prog.reqs ? e.loaded / e.total * 100 : 0) + "%";
      } else return el;
    },
    error(id) {
      var el = Prog.el;
      if (Main.el && Prog.check(id) && el) {
        el.classList.add("progfail");
        try { Prog.reqs[id].abort(); }
        catch(err) {}
        delete Prog.reqs[id];
      }
      if (slideshow)
        Main.el.dispatchEvent(new Event("load"));
      stor.removeItem(ns + id);
      $("a[data-id='" + id + "']")[0].dataset.full = "loading";
    },
    fn(url, id) {
      var details, err = Prog.error.bind(Prog, id);
      if (Prog.el) Prog.el.style.width = 0;
      details = {
        method: "GET",
        url: url,
        responseType: "arraybuffer",
        onload: Prog.load.bind(Prog, url.match(Main.r[2])[1], id),
        onprogress: Prog.progress.bind(Prog, id),
        onerror: err,
        onabort: err,
        ontimeout: err
      };
      if (domain == "sankakucomplex.com") {
        let ref = location.origin + "/post/show/" + id;
        details.headers = {
          referrer: ref,
          origin: ref
        };
      }
      if (!(id in Prog.reqs))
        Prog.reqs[id] = GM_xmlhttpRequest(details);
    },
    reqs: {}
  };

  Hover = {
    fn() {
      var el = Hover.el;
      if (el) {
        el = el.firstElementChild;
        Hover.cancel();
        Hover.el.children[1].removeAttribute("style");
        if (el.getAttribute("style")) el.removeAttribute("style");
        else el.setAttribute("style", "display: none");
      } else {
        Hover.el = el = $.c("div");
        el.insertAdjacentHTML("beforeend", `<div class="layover"></div><div class="tentcon"><div class="wrapthatshit"><div class="listimage"></div></div></div><svg style="width: 0; height: 0" xmlns="http://www.w3.org/2000/svg"><filter id="__dropshadow"><feGaussianBlur in="SourceAlpha" stdDeviation="2"></feGaussianBlur><feOffset result="offsetblur" dx="1" dy="1"></feOffset><feMerge><feMergeNode></feMergeNode><feMergeNode in="SourceGraphic"></feMergeNode></feMerge></filter></svg>`);
        el.className = "viewpre";
        d.body.appendChild(el);
        Hover.index = -1;
        Hover.target = $(".listimage", Hover.el)[0];
        if (domain != "sankakucomplex.com") {
          Hover.target.appendChild(Hover.next_el = $.c("span"));
          Hover.next_el.className = "next";
          Hover.next_el.addEventListener("click", Hover.next, passive);
        }
        for (let el of $("a[data-full]"))
          Hover.build(el);
        Hover.kinetic();
      }
    },
    next() {
      var timer;
      if (Hover.next_el.classList.contains("loadingu")) return;
      timer = setTimeout(() => {
        Hover.next_el = $.rm(Hover.next_el);
        Hover.size();
      }, 2E3);
      Hover.next_el.classList.add("loadingu");
      d.dispatchEvent(new CustomEvent(ns + "-next", { detail: timer }));
    },
    size() {
      Hover.target.style.width = Hover.target.children.length * (180 + paheal) + "px";
    },
    build(el) {
      var span = $.c("span"), img = $.c("img");
      img.src = el.firstElementChild.src;
      img.dataset.nth = ++Hover.index;
      if (el.dataset.gif) img.style.outline = "2px solid lime";
      span.appendChild(img);
      if (Hover.next_el) Hover.target.insertBefore(span, Hover.next_el);
      else Hover.target.appendChild(span);
      img.addEventListener("click", Hover.click, passive);
      img.addEventListener("dragstart", e => e.preventDefault());
      Hover.size();
    },
    click(e) {
      if (Hover.prevent)
        return Hover.prevent = null;
      e = e.currentTarget.src;
      Main.slide(e);
      Hover.center(e);
      if (Pos.el)
        Pos.el.children[0].innerHTML = +$("img[src*='" + $.base(e) + "']", Hover.el)[0].dataset.nth + 1;
    },
    center (src) {
      var base = $.base(src),
        img = $("img[src*='" + base + "']", Hover.el)[0],
        pos = +img.dataset.nth,
        scroll = $(".wrapthatshit", Hover.el)[0],
        half = scroll.offsetWidth / 2,
        width = 180 + paheal,
        dist = pos * width + width / 2,
        res = dist - half,
        curr = $(".current", Hover.el)[0];
      if (curr) curr.removeAttribute("class");
      Hover.cancel();
      Hover.el.children[1].removeAttribute("style");
      scroll.scrollLeft = res > 0 ? res : 0;
      img.parentNode.setAttribute("class", "current");
    },
    kinetic() {
      var view = Hover.target.parentNode, offset,
      reference, pressed = !1, velocity, frame,
      timestamp, ticker, amplitude, target, origin,
      rm = _ => Hover.el.children[1].removeAttribute("style");
      function scroll(x) {
        var max = view.scrollLeftMax;
        offset = x > max ? max : x < 0 ? 0 : x;
        view.scrollLeft = offset;
        if (offset === 0 || offset === max) {
          amplitude = 0;
          Hover.cancel();
          rm();
        }
      }
      function track() {
        var now, elapsed, delta, v;
        now = Date.now();
        elapsed = now - timestamp;
        timestamp = now;
        delta = offset - frame;
        frame = offset;
        v = 1000 * delta / (1 + elapsed);
        velocity = 0.8 * v + 0.2 * velocity;
      }
      function autoScroll() {
        var elapsed, delta;
        if (amplitude) {
          elapsed = Date.now() - timestamp;
          delta = -amplitude * Math.exp(-elapsed / 15E2);
          if (delta > 5 || delta < -5) {
            Hover.el.children[1].setAttribute("style", "transform: unset");
            scroll(target + delta);
            Hover.kinetID = requestAnimationFrame(autoScroll);
          } else {
            rm();
            scroll(target);
          }
        }
      }
      function tap(e) {
        Hover.prevent = !(pressed = true);
        rm();
        clearInterval(ticker);
        velocity = amplitude = 0;
        if (e.target == Hover.target.parentNode) return pressed = false;
        reference = e.clientX;
        offset = view.scrollLeft;
        frame = offset;
        timestamp = Date.now();
        ticker = setInterval(track, 100 / 3);
      }
      function drag(e) {
        var x, delta;
        if (pressed) {
          x = e.clientX;
          delta = reference - x;
          if (delta > 1 || delta < -1) {
            Hover.prevent = true;
            reference = x;
            scroll(offset + delta);
          }
        }
      }
      function release(e) {
        pressed = false;
        clearInterval(ticker);
        if (velocity > 10 || velocity < -10) {
          amplitude = 0.8 * velocity;
          target = offset + amplitude & -1;
          timestamp = Date.now();
          Hover.kinetID = requestAnimationFrame(autoScroll);
        }
      }
      view.addEventListener('mousedown', tap, passive);
      view.addEventListener('mousemove', drag, passive);
      view.addEventListener('mouseup', release, passive);
    },
    cancel() {
      try { cancelAnimationFrame(Hover.kinetID); }
      catch(e) {}
    }
  };

  Main = {
    sel: ".thumb",
    init() {
      var observer;
      if (domain != "sankakucomplex.com" && location.pathname == "/")
        return $.r(Main.front);
      function click(e) {
        if (e.button === 0) {
          e.preventDefault();
          e.stopPropagation();
          Main.fn(e.currentTarget);
        }
      }
      function process(node) {
        var a, id, alt;
        try {
          if (node && node.nodeType === 1 && node.matches(Main.sel) && (a = node.firstElementChild) && !a.dataset.full) {
            alt = $("img[alt]", node)[0];
            if (!alt) return;
            alt = alt.alt;
            if (Main.r[3].test(alt) || $("img[src*='webm-preview.png']", node).length) return;
            id = (node.id || a.id || a.children[0].id).match(Main.r[4])[0];
            if (!id) throw Error("Incompatible booru - missing IDs from thumbnails");
            if (domain == "gelbooru.com")
              a.setAttribute("href", "/index.php?page=post&s=view&id=" + id);
            if (alt && ~alt.indexOf("animated_gif")) {
              a.firstElementChild.style.border = "2px solid lime";
              a.dataset.gif = "gif";
            }
            a.dataset.id = id;
            if (domain == "paheal.net")
              a.dataset.full = node.lastElementChild.previousElementSibling.href;
            else
              a.dataset.full = $.cache(id);
            node.removeAttribute("onclick");
            a.removeAttribute("onclick");
            a.addEventListener("click", click);
            if (Hover.el) Hover.build(a);
          }
        } catch(err) { console.error(err); }
      }
      function hijack() {
        let qS = "document.querySelector";
        if (!$(Main.sel).length) return;
        $.eval(`
        Object.defineProperty(${qS}("#post-list > .content"), "insertBefore", {
          value: function insertBefore(newEl, pos) {
            if (newEl.nodeType !== 11)
              return (pos.nodeType === 3 ? pos.nextElementSibling : pos).insertAdjacentElement("beforebegin", newEl);
            else {
              let s = ${qS}("#post-list > .content > div:first-of-type");
              for (let t of newEl.firstElementChild.children) {
                t.classList.remove("blacklisted");
                t.removeAttribute("style");
                s.appendChild(t);
              }
            }
            return newEl;
          }
        })`);
      }
      switch(domain) {
      case "booru.org":
        Main.r[0] = Main.r[1] = /<img alt="img" src="([^"]+)/i;
        Main.css += "\nspan.thumb {\n  float: left\n}";
        break;
      case "e621.net":
        Main.css += "\n.thumb > a[data-id] {\n  display: inline-block;\n  margin-bottom: -3px\n}";
        break;
      case "sankakucomplex.com":
        Main.r[0] = /<a href="([^"> ]+)" id=highres [^>]*?>/;
        Main.r[1] = /<img[^>]*?id="?image"? [^>]*?src="?([^"> ]+)"?[^>]*>/;
        Main.sel = "#post-list div.content > div:first-of-type > .thumb";
        Main.css += "\ndiv.content {\n  position: static !important;\n  padding-left: 0\n}\n.stick + div.content {\n  padding-left: 238px\n}";
        $.r(hijack);
      }
      observer = new MutationObserver(mutations => mutations.forEach(mutation => [...mutation.addedNodes].forEach(process)));
      observer.observe(d, {
        childList: true,
        subtree: true
      });
      d.addEventListener("animationend", e => {
        switch(e.animationName) {
        case "Outlined":
          e.target.classList.remove("outlined");
          break;
        case "nomoreimages":
          notification = $.rm(e.target);
          break;
        case "menuelement":
          Menu.el = $.rm(e.target);
          break;
        case "warn":
          $.rm(e.target);
          break;
        case "progfail": case "progdone":
          Prog.el = $.rm(e.target);
        }
      }, passive);
      w.addEventListener("keypress", e => {
        if (e.key === "Enter" || e.keyCode === 13) {
          if (slideshow) {
            Btn.cb();
          } else if (e.target.matches(".thumb > a[data-full]")) {
            e.preventDefault();
            Main.fn(e.target);
          }
        }
      });
      w.addEventListener("wheel", e => Main.el && $.keyDown({ keyCode: e.deltaY > 0 ? 39 : e.deltaY < 0 ? 37 : 0 }), passive);
      $.r(Main.ready);
    },
    ready(style) {
      var style = $.c("style");
      style.appendChild(d.createTextNode(Main.css));
      d.head.appendChild(style);
      setTimeout(() => {
        let san_el = $("a#sc-auto-toggle")[0];
        if (!san_el) return;
        Main.san_fix = val =>
          (unsafeWindow || window).Sankaku.Pagination.auto_enabled
          !== val && san_el.click();
      }, 500);
    },
    fn(node) {
      d.dispatchEvent(new CustomEvent(ns, {bubbles:true}));
      return Main[Main.el ? "off" : "on"](node);
    },
    off(a) {
      var center;
      slideshow = !(a = $.current());
      Main.el = $.rm(Main.el);
      d.body.classList.remove("sliding");
      a.classList.add("outlined");
      d.removeEventListener("keydown", $.keyDown);
      if (domain == "sankakucomplex.com")
        a = a.firstElementChild;
      center = a.offsetTop + a.offsetHeight / 2 - w.innerHeight / 2;
      w.scrollTo(0, center < 0 ? 0 : center);
      Pos.fn(); Btn.fn(); Hover.fn();
      Main.gif = $.rm(Main.gif);
      Prog.el = $.rm(Prog.el);
      Main.san_fix(true);
    },
    on(a) {
      var el;
      if (Main.san_fix) Main.san_fix(false);
      d.body.classList.add("sliding");
      for (let a of $("a.outlined[data-full]")) a.classList.remove("outlined");
      Main.el = el = $.c("img");
      el.id = "slide";
      el.alt = "Loading...";
      el.onclick = Main.fn;
      el.onmouseup = e => e.button === 1 && $.keyDown({keyCode:38, event:e});
      d.body.appendChild(el);
      d.documentElement.scrollIntoView();
      Main.gif = el = $.c("span");
      el.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="-10 -3 36 22"><path d="M26 16c0 1.6-1.3 3-3 3H-7c-1.7 0-3-1.4-3-3V0c0-1.7 1.3-3 3-3h30c1.7 0 3 1.3 3 3v16z" opacity=".6"/><path fill="#FFF" d="M22-1H-6c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h28c1.1 0 2-.9 2-2V1c0-1.1-.9-2-2-2zM6.3 13.2H4.9l-.2-1.1c-.4.5-.8.9-1.3 1.1-.5.2-1 .3-1.4.3-.8 0-1.5-.1-2.1-.4s-1.1-.6-1.5-1.1-.7-1-1-1.6C-2.9 9.7-3 9-3 8.3c0-.7.1-1.4.3-2.1.2-.6.5-1.2 1-1.7s.9-.8 1.5-1.1C.5 3.2 1.2 3 1.9 3c.5 0 1 .1 1.5.2.5.2.9.4 1.3.7.4.3.7.7 1 1.1.2.5.4 1 .4 1.5H4c-.1-.5-.3-.9-.7-1.2-.4-.3-.8-.4-1.4-.4-.5 0-.9.1-1.2.3-.4.1-.7.4-.9.7-.2.3-.3.7-.4 1.1s-.1.8-.1 1.3c0 .4 0 .8.1 1.2s.3.8.5 1.1c.2.3.5.6.8.8s.8.3 1.3.3c.7 0 1.3-.2 1.7-.6.4-.4.6-.9.7-1.6H2.1V7.8h4.2v5.4zm4 0H8.1v-10h2.2v10zm8.9-8.1h-4.8v2.3h4.2v1.7h-4.2v4.1h-2.2v-10h7v1.9z"/></svg>';
      el.classList.add("gif");
      Hover.fn();
      d.body.appendChild(el);
      try { Main.slide(a.firstElementChild.src); }
      catch (err) { console.error(err); }
      d.addEventListener("keydown", $.keyDown);
      Pos.fn(); Btn.fn(); $.preload();
    },
    slide(src) {
      var data, curr;
      if (!slideshow)
        Main.el.src = src;
      Hover.center(src);
      Main.el.dataset.src = src;
      curr = $.current(src);
      Main.el.dataset.id = curr.dataset.id;
      data = curr.dataset.full;
      Main.gif.removeAttribute("style");
      /* dirty hack ahead because GIF doesn't want to play as a blob
       * and doesn't give proper progress info for 
       * GM_xmlhttpRequest for whatever reason */
      if (data == "loading") return Main.req(curr);
      // hack start
      else if (data.match(Main.r[2])[1].toLowerCase() == "gif") {
        Main.el.removeAttribute("src");
        Main.el.src = data;
        Main.gif.setAttribute("style", "display: inline-block");
      }
      // hack end
      else if (curr.dataset.blob) {
        Main.el.src = curr.dataset.blob;
        if (Prog.el) Prog.el = $.rm(Prog.el);
        let el = Prog.progress();
        el.style.width = "100%";
        el.classList.add("progdone");
      } else Prog.fn(data, curr.dataset.id);
    },
    r: [/file_url[=>]"?([^" <]+)"?/i, /sample_url[=>]"?([^" <]+)"?/i, /\.(gif|png|jpe?g)/i, /\b(webm|video|mp4|flash)\b/i, /\d+/, /[a-f0-9]{32}/],
    req(node) {
      var process, id, api;
      if (!node || node.dataset.alreadyLoading || node.dataset.full != "loading") return;
      switch(domain) {
        case "e621.net":
          id = node.parentNode.id.substr(1);
          api = "/post/show.xml?id=";
          break;
         case "sankakucomplex.com":
          id = node.parentNode.id.substr(1);
          api = "/post/show/";
          break;
        case "booru.org":
          id = node.dataset.id;
          api = "/index.php?page=post&s=view&id=";
          break;
        default:
          id = node.dataset.id;
          api = "/index.php?page=dapi&s=post&q=index&id=";
      }
      process = function(img) {
        img = img.match((!node.dataset.gif && !toggle) ? Main.r[1] : Main.r[0])[1];
        if (!img) throw Error("API error");
        node.dataset.full = $.cache(id, img);
        if (Main.el && ~Main.el.dataset.src.indexOf($.base(img))) {
          try { Main.slide(img); } catch (err) { console.error(err); }
        }
        $("img", node)[0].style.outline = "";
        return node.removeAttribute("data-already-loading");
      };
      node.dataset.alreadyLoading = "true";
      return fetch(api + id)
        .then(x => x.text())
        .then(process)
        .catch(err => {
          Main.warn();
          $("img", node)[0].style.outline = "6px solid red";
          console.error("Failed HTTP request\nDo you have an internet connection?\n", err);
          return node.removeAttribute("data-already-loading");
        });
    },
    warn() {
      var warn = $.c("span");
      warn.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><style>path.a{fill:red;stroke-width:8px;stroke:black;}</style><path d="M500 673c-17 0-34 4-48 11-24 12-44 33-55 58-5 14-9 28-9 44 0 62 50 113 112 113 63 0 113-50 113-113C613 723 562 673 500 673zM500 843c-32 0-58-26-58-58 0-32 26-58 58-58 32 0 59 26 59 58C558 817 532 843 500 843z" class="a"/><path d="M285 643c4 3 8 5 12 5l132-138c-57 14-109 47-149 94C272 617 273 634 285 643z" class="a"/><path d="M606 522L565 565c43 13 83 39 112 75 5 7 13 10 21 10 6 0 12-2 17-6 11-9 13-27 3-38C689 568 650 539 606 522z" class="a"/><path d="M500 384c16 0 32 1 48 3l46-48c-30-7-61-10-93-10-137 0-265 61-351 167-10 11-8 29 4 38 5 4 11 7 17 7 8 0 15-4 21-10C267 438 379 384 500 384z" class="a"/><path d="M729 393l-38 40c45 24 86 58 119 98 10 12 27 14 39 4 12-9 13-27 4-38C817 454 776 420 729 393z" class="a"/><path d="M685 244l41-43c-70-28-147-42-226-42-188 0-364 84-484 230-9 12-7 29 4 39 5 4 11 6 17 6 8 0 16-3 21-10 109-133 270-210 442-210C564 214 626 224 685 244z" class="a"/><path d="M984 389c-38-48-83-88-133-121l-38 40c49 32 93 71 130 117 9 11 27 13 38 4C991 418 994 401 984 389z" class="a"/><path d="M907 110c-11-10-28-10-38 1L181 828c-10 11-10 28 1 38 5 5 12 8 19 8 7 0 14-3 20-8L908 148C918 138 918 120 907 110z" class="a"/></svg>';
      warn.classList.add("warn");
      if ($(".sliding>.warn").length === 0) d.body.appendChild(warn);
      if (slideshow)
        Main.el.dispatchEvent(new Event("load"));
    },
    front() {
      var target, method;
      switch(domain) {
        case "e621.net":
          target = "#mascot_artist";
          method = "afterend";
          break;
        case "booru.org": case "rule34.xxx":
          target = "#static-index > div:last-child > p:first-child";
          method = "beforeend";
          break;
        default:
          target = "form:last-of-type + div";
          method = "beforeend";
      }
      $("#tags")[0].focus();
      $(target)[0].insertAdjacentHTML(method, `<br><br>Gelbooru&nbsp;Enhancement:<br><pre style="font-size: 11px;text-align: left;display: inline-block;margin-top: 5px;">- Gelbooru Image Viewer 1.9.6.4</pre>`);
    },
    css: `
@keyframes Outlined {
  0% { outline: 6px solid orange }
  60% { outline: 6px solid orange }
  100% { outline: 6px solid transparent }
}
@keyframes nomoreimages {
  0% { opacity: 0 }
  20% { opacity: 1 }
  100% { opacity: 0 }
}
@keyframes menuelement {
  0% { opacity: 1 }
  80% { opacity: 1 }
  100% { opacity: 0 }
}
@keyframes progfail {
  0% { opacity: 1 }
  80% { opacity: 1 }
  100% { opacity: 0 }
}
@keyframes warn {
  0% { opacity: 0; bottom: 5vh }
  25% { opacity: 1; bottom: 10vh }
  90% { opacity: 1 }
  100% { opacity: 0 }
}
body.sliding > * {
  display: none
}
body.sliding > .warn {
  z-index: 2;
  display: inline-block;
  position: absolute;
  width: 10vw;
  left: 45vw;
  bottom: 10vh;
  animation-duration: 2s;
  animation-name: warn;
  pointer-events: none
}
#slide {
  position: absolute;
  z-index: 1;
  width: 100vw;
  height: 100vh;
  object-fit: contain;
  display: inherit;
  top: 0;
  left: 0
}
.outlined {
  outline: 6px solid transparent;
  animation-duration: 4s;
  animation-name: Outlined
}
body.sliding > .nomoreimages {
  z-index: 4;
  pointer-events: none;
  display: block;
  width: 33vw;
  height: 100vh;
  top: 0;
  position: fixed;
  animation-duration: 1s;
  animation-name: nomoreimages
}
span.thumb {
  max-width: 180px;
  max-height: 180px
}
#menuel {
  z-index: 3;
  opacity: 1;
  position: fixed;
  display: block;
  padding: 2px;
  background: black;
  width: 139px;
  height: 44px;
  animation-duration: 1s
}
body.sliding > .menuel {
  animation-name: menuelement
}
#menuel:hover {
  animation-name: keepalive
}
#menuel a {
  background: #fff;
  color: #006FFA;
  display: block;
  font-size: 16px;
  font-family: verdana, sans-serif;
  font-weight: unset
}
#menuel a:hover {
  color: #33CFFF
}
#menuel a:visited {
  color: #006FFA
}
body.sliding > .slideshow {
  z-index: 2;
  display: block;
  position: fixed;
  bottom: 20px;
  right: 20px;
  font-size: 16px;
  font-family: verdana, sans-serif
}
body.sliding > .progress {
  z-index: 6;
  display: block;
  background-color: rgb(128,200,255);
  height: 1vh;
  position: absolute;
  top: 0;
  left: 0;
  box-shadow: 0 .5vh 10px rgba(0,0,0,.7), inset 0 0 .1vh black;
  transition: ease-in-out .08s width;
  min-height: 3px;
  max-width: 100vw;
  pointer-events: none;
  will-change: width, opacity
}
body.sliding > .progfail {
  background-color: red;
  width: 100% ! important;
  animation-name: progfail;
  animation-duration: 1.5s
}
body.sliding > .progdone {
  width: 100% ! important;
  animation-name: progfail;
  animation-duration: .6s
}
.slideshow:hover:not([data-timer]) > div {
  background: white;
  color: black;
  position: fixed;
  display: block ! important;
  bottom: 70px;
  right: 20px
}
body.sliding > .gif {
  z-index: 5;
  pointer-events: none;
  position: absolute;
  top: 3vh;
  right: 2vw;
  width: 3.5vw;
  opacity: .7;
  min-width: 50px;
  transition: ease .15s margin-top;
  margin-top: 0;
  will-change: margin-top
}
body.sliding {
  padding: 0;
  overflow: hidden
}
body.sliding > .viewpre {
  display: block
}
.viewpre > div {
  display: inherit;
  z-index: 5;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: ${200 + paheal * 2}px
}
.viewpre > .tentcon {
  transform: translateY(-100%);
  transition: ease .15s transform;
  background: linear-gradient(to bottom, black, transparent);
  will-change: transform
}
.viewpre:hover > .tentcon {
  transform: unset
}
.viewpre .wrapthatshit, .viewpre .wrapthatshit > .listimage {
  transform: rotateX(180deg);
}
.viewpre:hover ~ .gif {
  margin-top: ${200 + paheal * 2}px
}
.wrapthatshit {
  height: 100%;
  width: 100%;
  overflow-x: auto
}
.listimage {
  height: ${180 + paheal}px;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  margin: 0 auto
}
.listimage span {
  height: ${180 + paheal}px;
  width: ${180 + paheal}px;
  text-align: center;
  display: table-cell;
  vertical-align: middle
}
.listimage span img {
  cursor: pointer
}
.listimage .current {
  background: linear-gradient(to top, transparent 0%, hsla(204, 100%, 56%, .8) 2%, transparent 30%, transparent 100%)
}
.listimage .next::after {
  content: "LOAD\\ANEXT\\APAGE";
  font-size: 30px;
  text-transform: full-width;
  white-space: pre-wrap;
  color: white;
  filter: url(#__dropshadow)
}
.listimage .next {
  cursor: pointer
}
body.sliding > .posel {
  position: fixed;
  bottom: 20px;
  left: 0;
  display: block;
  pointer-events: none;
  z-index: 2;
  font-size: 16px;
  font-family: verdana, sans-serif
}`
  };

  Main.init();

}(document, window, localStorage));