Let me download

Block bontoon to delete canvas (or readding them) so you can load images without problem

Stellen Sie eine Frage, veröffentlichen Sie eine Bewertung oder melden Sie das Skript.

Zeilen umbrechen

// ==UserScript==
// @name         Let me download
// @namespace    http://tampermonkey.net/
// @version      2024-12-30
// @description  Block bontoon to delete canvas (or readding them) so you can load images without problem
// @author       Sylv1
// @match        https://*.bontoon.com/viewer/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=bontoon.com
// @grant        none
// @license MIT
// @run-at document-idle
// ==/UserScript==

(function() {
    'use strict';

    const originalAppend = HTMLElement.prototype.append;

    HTMLElement.prototype.append = function (...nodes) {
        // Check if a <canvas> is being appended and if there's already a <canvas> child
        const containsCanvas = Array.from(this.children).some((child) => child.tagName === 'CANVAS');
        const isAppendingCanvas = nodes.some((node) => node instanceof HTMLCanvasElement);

        if (isAppendingCanvas && containsCanvas) {
            console.warn('Blocked appending a <canvas> because one already exists in this element.');
            return;
        }

        // Call the original append method
        return originalAppend.apply(this, nodes);
    };


    const originalRemoveChild = HTMLElement.prototype.removeChild;

    HTMLElement.prototype.removeChild = function (child) {
        const childIsCanvas = child.tagName === 'CANVAS';
        const isCanvasViewer = this.className.includes("CanvasViewer");

        if (childIsCanvas && isCanvasViewer) {
            console.warn('Blocked deleting a <canvas> because it contain data.');
            return null;
        }

        return originalRemoveChild.call(this, child);
    }

    console.log("[-] Script `Let me download` successfully loaded ! Happy downloading !")

})();