Gelbooru Endless Scroll

Adds endless scroll function to Gelbooru

Versione datata 05/06/2017. Vedi la nuova versione l'ultima versione.

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==
// @id             gelbooru-endless-scroll
// @name           Gelbooru Endless Scroll
// @version        1.6.7
// @namespace      intermission
// @author         intermission
// @license        WTFPL; http://www.wtfpl.net/about/
// @description    Adds endless scroll function to Gelbooru
// @include        http://gelbooru.com/index.php?*
// @include        https://gelbooru.com/index.php?*
// @include        http://rule34.xxx/index.php?*
// @include        https://rule34.xxx/index.php?*
// @include        http://*.booru.org/index.php?*
// @include        https://*.booru.org/index.php?*
// @include        http://e621.net/post/index/*
// @include        https://e621.net/post/index/*
// @include        http://rule34.paheal.net/post/list/*
// @include        https://rule34.paheal.net/post/list/*
// @run-at         document-end
// @grant          none
// ==/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() {
  "use strict";
  var d = document, $ = (a, b) => (b || d).querySelector(a), a = ($("#paginater") || $("body > #paginator[hidden]")), b, rm = a => a.parentNode.removeChild(a);
  if (~location.hostname.indexOf("gelbooru.com")) {
    if (a) {
      let p = a, fn = () => {
        for (let a of p.children) {
          if (!a.classList.contains("pagination")) rm(a);
        }
      }, o = new MutationObserver(m => m.forEach(fn));
      o.observe(p, { childList: true, subtree: true });
      fn();
      d.head.lastElementChild.insertAdjacentHTML("afterend", `<style>div.pagination a {
  margin: 0 3px;
  padding: 2px 6px;
  font-weight: normal;
  border: 1px solid #EAEAEA;
}</style>`);
      [...a.attributes].map(b => a.removeAttribute(b.nodeName));
      a.setAttribute("style", 'display: block; padding: 0 0 15px; font-size: 12px; text-align: center; font-weight: bold; clear: both;');
      a.dataset.skip = "yes";
    }
    if (a = $("body > .paginator > #paginator")) {
      [...a.attributes].map(b => a.removeAttribute(b.nodeName));
      a.parentNode.style.textAlign = "center";
      for (let p of a.children) p.setAttribute("style", 'margin: 0 3px; padding: 2px 6px; font-weight: normal; border: 1px solid #EAEAEA;');
    }
    if ((a = $("#image")) || (a = $("#gelcomVideoPlayer")))
      while((b = a.previousElementSibling) != a.parentNode.firstElementChild)
        rm(b);
    if (a = $(".noticeError"))
      rm(a);
    if (a = $(".thumb")) {
      a.parentNode.insertBefore(rm($("div.sidebar")), a);
      $("div.content").style.width = "100%";
      a.parentNode.dataset.skip = "yes";
    }
    for (a of d.querySelectorAll("#post-list div.content > :not([data-skip])"))
      if (a.firstElementChild && a.firstElementChild.tagName == "H1")
        continue;
      else
        rm(a);
    if (a = $("#post-view .sidebar2.sidebar4 center > div.sidebar3"))
      while ((b = a.lastElementChild) && !~b.textContent.indexOf("Related Posts"))
        rm(b);
    if (a = $("[id^='post-'] .sidebar2.sidebar4>center"))
      while (a.children.length > 1)
        rm(a.lastChild);
    if ($("#edit_form"))
      d.addEventListener("dblclick", e => (e.preventDefault(), history.go(-1)), false);
    if (a = $("#resized_notice")) {
      a.replaceChild(d.createElement("a"), a.firstElementChild);
      a = a.firstElementChild;
      a.textContent = "here";
      a.setAttribute("href", "#");
      a.onclick = e => {
        let img = $("#image");
        e.preventDefault();
        [...img.attributes].map(b => !/^(?:id|src|style|alt)$/.test(b.nodeName) && img.removeAttribute(b.nodeName));
        img.src = $("ul>li>a[style*='font-weight:']").href;
        img.style.maxWidth = "calc(100vw - 275px - 5em)";
        e.target.parentNode.hidden = true;
        return false;
      };
    }
    if (a = $("table.highlightable")) {
      let links = a.querySelectorAll("td[style*='padding']:not([style*='width']) > a");
      if (!links) links = a.querySelectorAll("td > span.tag-type-general > a");
      if (links.length) {
        a.removeAttribute("style");
        1 === links.length && links[0].click();
      }
    }
    if (a = $("form#comment_form")) {
      while((b = a.previousSibling).nodeName !== "BR")
        rm(b);
      while(b = a.nextSibling)
        rm(b);
      a.previousElementSibling.outerHTML = `<br><a href="javascript:;" onclick="var d=document,f=d.querySelector('#comment_form'),t=this.children[0];if(f.style.length){t.textContent='Hide';f.style=''}else{t.textContent='Show';f.style.display='none'}"><span>Show</span> comment form</a><br>`;
    }
    if (a = $("li.tag-type-general")) {
      let fn = function(e) {
        let t = e.target,
          tag = t.parentNode.lastElementChild.previousElementSibling.href.match(/tags=([^&]+)/i)[1],
          r = tag.replace(/\(/g, "\\("),
          f = $("input[name='tags']"), b = "\\b", s = "\\s?", i = "i";
        tag = decodeURIComponent(tag);
        switch(t.textContent) {
        case "+":
          if (new RegExp(s + "-" + r + b, i).test(f.value)) f.value = f.value.replace(new RegExp(s + "-" + r + s, i), " ");
          else if (!new RegExp(b + r + b, i).test(f.value)) f.value += " " + tag;
          break;
        case "-":
          if (new RegExp(b + r + b, i).test(f.value) && f.value[f.value.indexOf(tag) - 1] != "-") f.value = f.value.replace(new RegExp(s + r + s), " ");
          else if (!new RegExp(s + "-" + r + b, i).test(f.value)) f.value += " -" + tag;
          break;
        }
        f.value = f.value.replace(/^\s*/, "").replace(/\s*$/, "");
        f.focus();
      };
      for (let el of d.querySelectorAll("ul#tag-sidebar>li[class^='tag-type-']")) {
        a = [...el.children]; a.shift(); a.pop(); a.pop();
        for (let r of a) rm(r);
        el.style.marginLeft = "-21px";
        el.insertAdjacentHTML("afterbegin", `<a href="javascript:;">-</a> <a href="javascript:;">+</a> `);
        el.children[0].addEventListener("click", fn);
        el.children[1].addEventListener("click", fn);
      }
    }
  } else if (~location.hostname.indexOf(".booru.org")) {
    if (a = $("#image"))
      a.setAttribute("style", "max-width: calc(100% - 4em)");
    d.body.style.backgroundImage = 'url("chrome://global/skin/media/imagedoc-darknoise.png")';
    d.body.style.color = "#ddd";
    while (a = $("div#footer").nextElementSibling) rm(a);
  }
}());

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////

(function(){
  "use strict";
  var d = document, url, host = location.hostname.match(/[^\.]+\.[^\.]+$/)[0],
  v = ".thumb",
  vis = function() {
    var rect = target().getBoundingClientRect();
    return rect.x === 0 && rect.y === 0 ? false :
      rect.top + rect.height >= 0 &&
      document.documentElement.clientHeight - rect.bottom + rect.height >= 0;
  }, total,
  page = function(doc) {
    try {
      var images, pageNo = d.createElement("paheal.net" === host ? "div" : "span"), frag = d.createDocumentFragment(), container,
      fn = (e) => {
        (e = e.target.parentNode.parentNode).style.overflow = "";
        if (!e.getAttribute("style")) e.removeAttribute("style");
      };
      images = [...doc.querySelectorAll(host === "yande.re" ? "li[id^='p'][class*='creator-id-']" : v)];
      if (images.length === 0)
        throw Error("API error");
      pageNo.innerHTML = '<span style="height:' + ("paheal.net" === host ? "180px" : "inherit") + ';display:flex;flex-direction:column;">Page ' + url.index + '~<span style="margin:auto 0 30px">out of ' + total + "</span></span>";
      pageNo.className = "thumb";
      if ("paheal.net" === host)
        pageNo.setAttribute("style", "transform: translateY(-180px); margin-bottom: -180px");
      frag.appendChild(pageNo);
      for (let a of images) {
        let img = a.querySelector("img");
        a.style.overflow = "hidden";
        img.addEventListener("load", fn, { once : true });
        frag.appendChild(a);
      }
      container = d.querySelector(v).parentNode;
      if (container.lastElementChild.tagName === "SPAN") container.appendChild(frag);
      else container.insertBefore(frag, container.querySelector(v + ":last-of-type + *"));
      target().classList.remove("loadingu");
      if (paginator.go) paginator();
      if (list.length > 0) {
        events(true);
        process();
      } return;
    } catch(err) { console.error(err); }
  }, req = _ => fetch(url.href).then(
    x => x.text().then(
      text => page((new DOMParser()).parseFromString(text, "text/html"))
    )
  ).catch(err => {
    target().classList.remove("loadingu");
    if (typeof err !== "undefined") {
      if (_.attempt < 10) {
        console.error(`An error occured, ${~_.attempt + 11} retries left\n`, err.message, err.stack);
        ++_.attempt;
        setTimeout(req, 5000, _);
      } else
        console.error("Maximum number of retries reached\n", err.message, err.stack);
    }
  }), process = function(_override) {
    if (vis() || (typeof _override === "boolean" ? _override : false)) {
      target().classList.add("loadingu");
      events();
      url = list.shift();
      return req({attempt: 0});
    }
  }, events = function(_on) {
    var name = _on ? "addEventListener" : "removeEventListener", obj = { passive : true };
    ["scroll", "resize", "visibilitychange"].forEach(evt => window[name](evt, process, obj));
  }, list = [], r = /(page=|pid=|index\/)([0-9]+)|(list\/(?:[^\/]+\/)?)([0-9]+)$/, paginator = function() {
    var el = target(), rect1 = d.querySelector(".thumb:last-of-type"),
      el2 = d.querySelector(".sidebar"), rect2;
    if (el.classList.contains("pagination")) el = el.parentNode;
    rect1 = rect1.offsetTop + rect1.offsetHeight;
    rect2 = el2.offsetTop + el2.offsetHeight - 9;
    if (rect2 >= rect1) {
      el.style.position = "absolute";
      el.style.top = rect1 + "px";
      el.style.left = "calc(50vw + " + el2.getBoundingClientRect().width / 2 + "px)";
      el.style.transform = 'translateX(-50%)';
    } else {
      el.style.position = "";
      el.style.top = "";
      el.style.left = "";
      el.style.transform = "";
      paginator.go = false;
    }
  };
  const target = () => d.querySelector("div.pagination") || d.querySelector("div#paginator") || d.querySelector("section#paginator");
  {
    let style = d.createElement("style");
    style.appendChild(d.createTextNode(`.loadingu {
  position: relative;
}
.loadingu::after {
  content: "" ! important;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  min-width: 34px;
  min-height: 34px;
  background: rgba(0,0,0,.5) no-repeat center center url(data:image/svg+xml,%3Csvg%20width%3D%2234px%22%20height%3D%2234px%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20100%20100%22%20preserveAspectRatio%3D%22xMidYMid%22%20class%3D%22uil-ring-alt%22%3E%3Crect%20x%3D%220%22%20y%3D%220%22%20width%3D%22100%22%20height%3D%22100%22%20fill%3D%22none%22%20class%3D%22bk%22%3E%3C%2Frect%3E%3Ccircle%20cx%3D%2250%22%20cy%3D%2250%22%20r%3D%2240%22%20stroke%3D%22%23b4b197%22%20fill%3D%22none%22%20stroke-width%3D%2210%22%20stroke-linecap%3D%22round%22%3E%3C%2Fcircle%3E%3Ccircle%20cx%3D%2250%22%20cy%3D%2250%22%20r%3D%2240%22%20stroke%3D%22%23f4efcc%22%20fill%3D%22none%22%20stroke-width%3D%226%22%20stroke-linecap%3D%22round%22%3E%3Canimate%20attributeName%3D%22stroke-dashoffset%22%20dur%3D%221s%22%20repeatCount%3D%22indefinite%22%20from%3D%220%22%20to%3D%22502%22%3E%3C%2Fanimate%3E%3Canimate%20attributeName%3D%22stroke-dasharray%22%20dur%3D%221s%22%20repeatCount%3D%22indefinite%22%20values%3D%22150.6%20100.4%3B1%20250%3B150.6%20100.4%22%3E%3C%2Fanimate%3E%3C%2Fcircle%3E%3C%2Fsvg%3E);
}`));
    d.head.appendChild(style);
  }
  if (target() && /\/post\/?|page=post/.test(location.href)) {
    let pid = location.href.match(r),
    p = ((pid && pid[1] === "index/" || host === "yande.re") ? target().lastElementChild.previousElementSibling : target().lastElementChild).href,
    n = d.querySelectorAll(v).length,
    start_index, end_index, increment = 1, index = 0;
    if (host === "paheal.net") {
      let ayy = [...target().children[0].children];
      p = ayy[ayy.indexOf(ayy.find(el => !!~el.textContent.indexOf("Random"))) + 2].href;
    }
    if (!p) return;
    switch(host) {
    case "gelbooru.com": case "rule34.xxx":
      start_index = pid ? pid[2] / n : 0;
      increment = n;
      end_index = p.match(r)[2] / n;
      index = 1;
      paginator.go = true;
      break;
    case "booru.org":
      start_index = pid ? pid[2] / n : 0;
      increment = n;
      end_index = p.match(r)[2] / n;
      index = 1;
      break;
    case "e621.net":
      start_index = pid ? +pid[2] : 2;
      end_index = +p.match(r)[2];
      break;
    case "yande.re":
      start_index = pid ? +pid[2] : 1;
      end_index = +p.match(r)[2];
      break;
    case "paheal.net":
      start_index = pid ? +pid[4] : 1;
      end_index = +p.match(r)[4];
      break;
    }
    while(start_index < end_index)
      list.push({
        href: p.replace(r, (host === "paheal.net" ? "$3" : "$1") + ++start_index * increment),
        index: start_index + index
      });
    total = end_index + index;
  } else
    throw Error("*shrug*");
  if (paginator.go) paginator();
  d.addEventListener("gelbooru-slide", e => {
    if (list.length > 0)
      events(e.detail);
  }, false);
  d.addEventListener("gelbooru-slide-next", e => {
    if (list.length > 0) {
      clearTimeout(e.detail);
      d.querySelector(".loadingu").classList.remove("loadingu");
      process(true);
    }
  }, false);
  events(true);
  if (vis()) process();
}());