Nhentai Endless (Updated 2025)

Endless scroll.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name        Nhentai Endless (Updated 2025)
// @namespace   https://ko-fi.com/greekie
// @version     3.0
// @description Endless scroll.
// @author      Greekie_10
// @match       https://nhentai.net/*
// @grant       GM_xmlhttpRequest
// @run-at      document-end
// @connect-src nhentai.net
// @license      MIT
// ==/UserScript==

(function () {
  // 💣 TOTAL DISABLE for /g or /g/*
  if (/^\/g(\/|$)/.test(location.pathname)) {
    console.log('[nhentai_endless] Skipped on /g pages.');
    return;
  }

  let maxPages = 1;
  let loadedPages = 0;
  let lastUrl = null;
  let isLoading = false;
  let container;
  let reachedEnd = false;
  let awaitingRepeatBottom = false;

  function fixLazyImages(container) {
    const imgs = container.querySelectorAll('img');
    imgs.forEach(img => {
      const lazy = img.getAttribute('data-src') || img.getAttribute('data-lazy-src') || img.getAttribute('data-original');
      if (lazy) img.src = lazy;
      img.removeAttribute('loading');
      img.removeAttribute('data-src');
      img.removeAttribute('data-lazy-src');
      img.removeAttribute('data-original');
    });
  }

  function getNextPageUrl() {
    const currentUrl = new URL(window.location.href);
    const pageParam = currentUrl.searchParams.get("page");
    const currentPage = pageParam ? parseInt(pageParam) : 1;
    const nextPage = currentPage + loadedPages;
    currentUrl.searchParams.set("page", nextPage + 1);
    return currentUrl.href;
  }

  function loadNextPage() {
    if (isLoading || reachedEnd || (loadedPages >= maxPages - 1 && maxPages !== Infinity)) return;
    isLoading = true;
    awaitingRepeatBottom = false;

    const nextUrl = getNextPageUrl();
    if (nextUrl === lastUrl) return;
    lastUrl = nextUrl;

    GM_xmlhttpRequest({
      method: 'GET',
      url: nextUrl,
      onload: function (res) {
        const html = new DOMParser().parseFromString(res.responseText, "text/html");
        const nextContent = html.querySelector('#content');

        const galleryItems = nextContent?.querySelectorAll('.gallery');
        if (!nextContent || !galleryItems || galleryItems.length === 0) {
          reachedEnd = true;
          console.log('[nhentai_endless] No more pages. Stopping.');
          return;
        }

        fixLazyImages(nextContent);
        container.appendChild(nextContent);
        loadedPages++;
        isLoading = false;
      },
      onerror: function () {
        isLoading = false;
      }
    });
  }

  function scrollListener() {
    const scrolled = Math.ceil(window.scrollY + window.innerHeight);
    const total = Math.floor(document.documentElement.scrollHeight);

    if (scrolled >= total) {
      if (!awaitingRepeatBottom) {
        console.log('[nhentai_endless] Bottom reached. Scroll again to load next page.');
        awaitingRepeatBottom = true;
      } else {
        loadNextPage();
      }
    }
  }

  function setupDropdown() {
    const box = document.createElement('div');
    box.style.position = 'fixed';
    box.style.top = '5vh';
    box.style.left = '10px';
    box.style.background = 'rgba(0,0,0,0.85)';
    box.style.color = '#fff';
    box.style.padding = '8px 12px';
    box.style.zIndex = '9999';
    box.style.borderRadius = '10px';
    box.style.cursor = 'move';
    box.style.fontFamily = 'Arial, sans-serif';
    box.style.fontSize = '14px';
    box.style.boxShadow = '0 0 10px rgba(0,0,0,0.5)';

    const label = document.createElement('label');
    label.textContent = 'Page:';
    label.style.marginRight = '6px';

    const select = document.createElement('select');
    select.style.backgroundColor = '#ff9900';
    select.style.color = 'black';
    select.style.border = 'none';
    select.style.padding = '4px 8px';
    select.style.borderRadius = '6px';
    select.style.fontWeight = 'bold';
    select.style.cursor = 'pointer';
    select.style.outline = 'none';
    select.style.fontSize = '14px';
    select.style.textAlign = 'center';
    select.style.textAlignLast = 'center';
    select.style.webkitAppearance = 'none';
    select.style.mozAppearance = 'none';
    select.style.appearance = 'none';
    select.style.backgroundImage = 'none';

    select.addEventListener('keydown', e => {
      if (['ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight'].includes(e.key)) {
        e.preventDefault();
      }
    });

    for (let i = 1; i <= 5; i++) {
      const opt = document.createElement('option');
      opt.value = i;
      opt.textContent = i;
      select.appendChild(opt);
    }

    const endlessOpt = document.createElement('option');
    endlessOpt.value = 'Infinity';
    endlessOpt.textContent = '♾️';
    select.appendChild(endlessOpt);

    select.value = "1";
    select.addEventListener('change', () => {
      maxPages = select.value === 'Infinity' ? Infinity : parseInt(select.value);
      loadedPages = 0;
      reachedEnd = false;
      awaitingRepeatBottom = false;
      lastUrl = null;
      container.innerHTML = ''; // Clear old content

      if (maxPages === Infinity) {
        window.addEventListener('scroll', scrollListener);
      } else {
        window.removeEventListener('scroll', scrollListener);
        (async function loadAll() {
          for (let i = 0; i < maxPages - 1; i++) {
            await new Promise(resolve => {
              const interval = setInterval(() => {
                if (!isLoading) {
                  loadNextPage();
                  clearInterval(interval);
                  resolve();
                }
              }, 100);
            });
          }
        })();
      }
    });

    box.appendChild(label);
    box.appendChild(select);
    document.body.appendChild(box);

    let offsetX = 0, offsetY = 0, isDown = false;
    box.addEventListener('mousedown', (e) => {
      isDown = true;
      offsetX = e.clientX - box.offsetLeft;
      offsetY = e.clientY - box.offsetTop;
      box.style.cursor = 'grabbing';
    });
    document.addEventListener('mousemove', (e) => {
      if (!isDown) return;
      box.style.left = `${e.clientX - offsetX}px`;
      box.style.top = `${e.clientY - offsetY}px`;
    });
    document.addEventListener('mouseup', () => {
      isDown = false;
      box.style.cursor = 'move';
    });
  }

  window.addEventListener('DOMContentLoaded', () => {
    const mainContent = document.querySelector('#content');
    if (!mainContent) return;

    container = document.createElement('div');
    mainContent.after(container);
    setupDropdown();
  });
})();