Copy Image As

Adds "Copy Image As..." to context menu to rename images

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// ==UserScript==
// @name         Copy Image As
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Adds "Copy Image As..." to context menu to rename images
// @author       You
// @match        *://*/*
// @grant        GM_setClipboard
// @run-at       context-menu
// ==/UserScript==

(function() {
    'use strict';

    document.addEventListener('contextmenu', function(e) {
        if (e.target.tagName === 'IMG') {
            const img = e.target;
            const newName = prompt('Enter new image name:', 'renamed_image');
            if (newName) {
                const canvas = document.createElement('canvas');
                const ctx = canvas.getContext('2d');
                canvas.width = img.naturalWidth;
                canvas.height = img.naturalHeight;
                ctx.drawImage(img, 0, 0);
                canvas.toBlob(blob => {
                    GM_setClipboard(blob, 'image/png');
                });
            }
        }
    }, true);
})();