Let me download

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

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         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 !")

})();