JVC_ImageViewer.user.js

// ==UserScript==
// @name         JVC_ImageViewer
// @namespace    http://tampermonkey.net/
// @version      1.38.8
// @description  Naviguer entre les images d'un post sous forme de slideshow en cliquant sur une image sans ouvrir NoelShack. Ferme le visualiseur lors du clic sur le bouton retour du navigateur.
// @author       HulkDu92
// @match        https://*.jeuxvideo.com/forums/*
// @match        https://jvarchive.com/forums/*
// @grant        none
// @run-at       document-end
// @license      MIT
// @downloadURL https://update.greasyfork.org/scripts/508447/JVC_ImageViewer.user.js
// @updateURL https://update.greasyfork.org/scripts/508447/JVC_ImageViewer.meta.js
// ==/UserScript==

(function() {
    'use strict';

    class ImageViewer {
        constructor() {
            if (ImageViewer.instance) {
                return ImageViewer.instance;
            }

            // ... (existing constructor code)

            this.isViewerOpen = false;
            this.handlePopState = this.handlePopState.bind(this);

            ImageViewer.instance = this;

            this.createOverlay();
            this.updateImage();
        }

        // ... (existing methods)

        openViewer(images, currentIndex) {
            if (this.overlay) {
                this.images = images;
                this.currentIndex = currentIndex;
                this.updateImage();
                this.isViewerOpen = true;
                this.addHistoryState();
            } else {
                new ImageViewer();
                this.images = images;
                this.currentIndex = currentIndex;
                this.createOverlay();
                this.updateImage();
                this.isViewerOpen = true;
                this.addHistoryState();
            }
            window.addEventListener('popstate', this.handlePopState);
        }

        closeViewer() {
            if (this.overlay) {
                document.body.removeChild(this.overlay);
                this.overlay = null;
                this.isViewerOpen = false;
                ImageViewer.instance = null; // Réinitialise l'instance singleton
                window.removeEventListener('popstate', this.handlePopState);
            }
        }

        addHistoryState() {
            history.pushState({ imageViewerOpen: true }, '');
        }

        handlePopState(event) {
            if (this.isViewerOpen) {
                event.preventDefault();
                this.closeViewer();
            }
        }
    }



})();