Jav Library Gallery Overlay

Open jav library images in a gallery.

Dovrai installare un'estensione come Tampermonkey, Greasemonkey o Violentmonkey per installare questo script.

You will need to install an extension such as Tampermonkey to install this 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==
// @name         Jav Library Gallery Overlay
// @version      1.2
// @description  Open jav library images in a gallery.
// @author       KeanCollyer12 
// @match        https://*.javlibrary.com/*
// @grant        none
// @run-at       document-end
// @namespace https://greasyfork.org/users/1603790
// ==/UserScript==

(function () {
    'use strict';

    let currentImages = [];
    let currentIndex = 0;
    let overlay = null;
    let imgElement = null;
    let openTabBtn = null;

    let currentScale = 1;
    let offsetX = 0;
    let offsetY = 0;
    let isDragging = false;
    let lastMouseX = 0;
    let lastMouseY = 0;
    let counterTimeout = null;

    function createOverlay() {
        if (!overlay) {
            overlay = document.createElement('div');
            overlay.id = 'dmm-gallery-overlay';
            overlay.style.cssText = `
                position: fixed; top: 0; left: 0; right: 0; bottom: 0;
                background: rgba(0,0,0,0.95); display: none;
                align-items: center; justify-content: center;
                z-index: 2147483647; user-select: none;
            `;

            overlay.innerHTML = `
                <div style="position: absolute; top: 15px; right: 25px; color: white; font-size: 32px; cursor: pointer; z-index: 10; padding: 10px;" id="close-btn">✕</div>
                <div id="prev-btn" style="position: fixed; left: 20px; top: 50%; transform: translateY(-50%); color: white; font-size: 60px; cursor: pointer; text-shadow: 0 0 15px black; z-index: 10;">‹</div>
                <div id="next-btn" style="position: fixed; right: 20px; top: 50%; transform: translateY(-50%); color: white; font-size: 60px; cursor: pointer; text-shadow: 0 0 15px black; z-index: 10;">›</div>

                <div id="image-container" style="position: relative; width: 96%; height: 94vh; display: flex; align-items: center; justify-content: center; overflow: hidden;">
                    <img id="gallery-main-img" style="max-width: 100%; max-height: 100%; object-fit: contain; display: block; cursor: zoom-in;">
                </div>

                <div id="counter" style="position: absolute; bottom: 25px; color: #ddd; font-size: 19px; font-family: Arial, sans-serif; opacity: 0; transition: opacity 0.4s;"></div>

                <a id="open-tab-btn" href="#" target="_blank" style="position: absolute; top: 20px; left: 25px; background: rgba(255,255,255,0.15); color: white; padding: 8px 14px; border-radius: 4px; text-decoration: none; font-size: 14px; display: none; z-index: 10;">
                    🔗 Open image in new tab
                </a>
            `;

            document.body.appendChild(overlay);
            imgElement = overlay.querySelector('#gallery-main-img');
            openTabBtn = overlay.querySelector('#open-tab-btn');

            overlay.querySelector('#close-btn').addEventListener('click', closeOverlay);
            overlay.querySelector('#prev-btn').addEventListener('click', prevImage);
            overlay.querySelector('#next-btn').addEventListener('click', nextImage);

            imgElement.addEventListener('wheel', handleWheel, { passive: false });
            imgElement.addEventListener('dblclick', resetZoom);
            imgElement.addEventListener('mousedown', startDrag);
            imgElement.addEventListener('error', handleImageError);

            document.addEventListener('mousemove', onDrag);
            document.addEventListener('mouseup', endDrag);
            document.addEventListener('keydown', handleKeydown);
        }
        return overlay;
    }

    function handleImageError() {
        if (openTabBtn) {
            openTabBtn.href = currentImages[currentIndex] || '#';
            openTabBtn.style.display = 'inline-block';
        }
    }

    function showCounter() {
        const counter = document.getElementById('counter');
        counter.textContent = `${currentIndex + 1} / ${currentImages.length}`;
        counter.style.opacity = '1';
        clearTimeout(counterTimeout);
        counterTimeout = setTimeout(() => counter.style.opacity = '0', 2000);
    }

    function hideCounterImmediately() {
        const counter = document.getElementById('counter');
        clearTimeout(counterTimeout);
        counter.style.opacity = '0';
    }

    function updateImage() {
        if (openTabBtn) openTabBtn.style.display = 'none';
        resetZoom();
        imgElement.src = currentImages[currentIndex];
        showCounter();
    }

    function nextImage() { currentIndex = (currentIndex + 1) % currentImages.length; updateImage(); }
    function prevImage() { currentIndex = (currentIndex - 1 + currentImages.length) % currentImages.length; updateImage(); }

    function closeOverlay() {
        if (overlay) overlay.style.display = 'none';
        document.body.style.overflow = '';
        if (openTabBtn) openTabBtn.style.display = 'none';
        resetZoom();
    }

    function applyTransform() {
        imgElement.style.transform = currentScale === 1 ? 'none' : `translate(${offsetX}px, ${offsetY}px) scale(${currentScale})`;
    }

    function zoomAt(clientX, clientY, factor) {
        hideCounterImmediately();
        const rect = imgElement.getBoundingClientRect();
        const centerX = rect.left + rect.width / 2;
        const centerY = rect.top + rect.height / 2;

        const offsetFromCenterX = clientX - centerX;
        const offsetFromCenterY = clientY - centerY;

        const oldScale = currentScale;
        currentScale = Math.max(0.95, currentScale * factor);

        const scaleChange = currentScale / oldScale;
        offsetX = (clientX - centerX) - (offsetFromCenterX * scaleChange) + (offsetX * scaleChange);
        offsetY = (clientY - centerY) - (offsetFromCenterY * scaleChange) + (offsetY * scaleChange);

        applyTransform();
        updateCursor();
    }

    function handleWheel(e) { e.preventDefault(); const factor = e.deltaY < 0 ? 1.05 : 0.952; zoomAt(e.clientX, e.clientY, factor); }
    function resetZoom() { currentScale = 1; offsetX = 0; offsetY = 0; applyTransform(); updateCursor(); }
    function updateCursor() { imgElement.style.cursor = currentScale > 1.05 ? 'grab' : 'zoom-in'; }
    function startDrag(e) { if (currentScale <= 1.05) return; isDragging = true; lastMouseX = e.clientX; lastMouseY = e.clientY; imgElement.style.cursor = 'grabbing'; }
    function onDrag(e) { if (!isDragging) return; offsetX += e.clientX - lastMouseX; offsetY += e.clientY - lastMouseY; lastMouseX = e.clientX; lastMouseY = e.clientY; applyTransform(); }
    function endDrag() { isDragging = false; updateCursor(); }

    function handleKeydown(e) {
        if (!overlay || overlay.style.display === 'none') return;
        if (e.key === 'Escape') closeOverlay();
        if (e.key === 'ArrowRight') nextImage();
        if (e.key === 'ArrowLeft') prevImage();
        if (e.key === 'ArrowUp') zoomAt(window.innerWidth/2, window.innerHeight/2, 1.05);
        if (e.key === 'ArrowDown') zoomAt(window.innerWidth/2, window.innerHeight/2, 0.952);
    }

    // ====================== URL HELPERS ======================
    function decodeRedirectUrl(href) {
        try {
            if (href.includes('redirect.php?url=')) {
                let url = href.split('redirect.php?url=')[1].split('&')[0];
                return decodeURIComponent(url);
            }
            return href;
        } catch (e) {
            return href;
        }
    }

    function getPreferredUrl(url) {
        if (!url) return url;
        if (url.includes('dmm.co.jp') || url.includes('awsimgsrc.dmm.co.jp')) {
            if (url.includes('jp-')) return url;
            return url.replace(/(\d+)\.jpg$/, 'jp-$1.jpg');
        }
        return url;
    }

    function openGallery(imagesArray, startIndex = 0) {
        currentImages = imagesArray;
        currentIndex = startIndex;
        const ov = createOverlay();
        ov.style.display = 'flex';
        document.body.style.overflow = 'hidden';
        updateImage();
    }

    // ====================== MAIN JACKET / COVER GALLERY ======================
    function initCoverGallery() {
        const jacketImg = document.querySelector('#video_jacket_img');
        if (!jacketImg) return;

        const coverImages = [];

        // Main cover
        if (jacketImg.src) coverImages.push(jacketImg.src);

        // Backup image from onerror
        const onerrorAttr = jacketImg.getAttribute('onerror');
        if (onerrorAttr) {
            const match = onerrorAttr.match(/https?:\/\/[^\s'")]+/);
            if (match && !coverImages.includes(match[0])) {
                coverImages.push(match[0]);
            }
        }

        if (coverImages.length === 0) return;

        // Make cover image clickable → only cover gallery
        jacketImg.style.cursor = 'zoom-in';
        jacketImg.addEventListener('click', (e) => {
            e.stopImmediatePropagation();
            openGallery(coverImages, 0);
        });
    }

    // ====================== PREVIEW THUMBS GALLERY ======================
    function initPreviewGallery() {
        const container = document.querySelector('.previewthumbs');
        if (!container) return;

        const links = container.querySelectorAll('a');
        const previewImages = Array.from(links).map(link => getPreferredUrl(decodeRedirectUrl(link.href)));

        links.forEach((link, i) => {
            link.addEventListener('click', e => {
                e.preventDefault();
                e.stopImmediatePropagation();
                openGallery(previewImages, i);
            });
        });
    }

    // ====================== COMMENT GALLERIES ======================
    function initCommentGalleries() {
        const commentContainers = document.querySelectorAll('td.t, .text, .comment, .post');

        commentContainers.forEach(container => {
            const galleryImages = [];

            const anchors = container.querySelectorAll('a[href*="redirect.php"], a[href*=".jpg"], a[href*=".png"], a[href*=".gif"], a[href*=".webp"]');

            anchors.forEach(a => {
                let fullUrl = decodeRedirectUrl(a.href);
                if (fullUrl.match(/\.(jpg|jpeg|png|gif|webp)$/i)) {
                    fullUrl = getPreferredUrl(fullUrl);
                    if (!galleryImages.includes(fullUrl)) galleryImages.push(fullUrl);
                }
            });

            if (galleryImages.length === 0) return;

            const clickables = container.querySelectorAll('a[href*="redirect.php"], a[href*=".jpg"], a[href*=".png"], img');

            clickables.forEach((el) => {
                el.style.cursor = 'zoom-in';

                el.addEventListener('click', function (e) {
                    e.preventDefault();
                    e.stopImmediatePropagation();

                    let startIdx = 0;
                    if (el.tagName === 'A') {
                        let clickedUrl = decodeRedirectUrl(el.href);
                        clickedUrl = getPreferredUrl(clickedUrl);
                        startIdx = galleryImages.findIndex(url => url === clickedUrl);
                    } else if (el.tagName === 'IMG' && el.parentElement?.tagName === 'A') {
                        let clickedUrl = decodeRedirectUrl(el.parentElement.href);
                        clickedUrl = getPreferredUrl(clickedUrl);
                        startIdx = galleryImages.findIndex(url => url === clickedUrl);
                    }

                    if (startIdx === -1) startIdx = 0;
                    openGallery(galleryImages, startIdx);
                }, true);
            });
        });
    }

    function init() {
        initCoverGallery();
        initPreviewGallery();
        initCommentGalleries();
    }

    init();

    const observer = new MutationObserver(init);
    observer.observe(document.body, { childList: true, subtree: true });
})();