Removes the forced ProtonMail signature from the 'New message' textboxes
// ==UserScript==
// @name ProtonMail - remove forced signature
// @namespace darkred
// @version 2022.5.7
// @description Removes the forced ProtonMail signature from the 'New message' textboxes
// @author darkred
// @license MIT
// @include https://mail.protonmail.com/*
// @include https://protonirockerxow.onion/*
// @grant none
// @require https://greasyfork.org/scripts/21927-arrive-js/code/arrivejs.js
// @supportURL https://github.com/darkred/Userscripts/issues
// @icon https://protonmail.com/images/favicon.ico
// ==/UserScript==
const elementToWatch = 'iframe[title="Email composer"]';
document.arrive(elementToWatch, function () {
let iframe = this.contentDocument; // refers to the newly created element
const config = {
childList: true,
subtree: true
};
const callback = function(mutationList, observer) {
mutationList.forEach( (mutation) => {
mutation.addedNodes.forEach( (node) => {
if (node.className === 'protonmail_signature_block') {
const parent = node.parentElement; // it's '#squire' and has 3 children: two with <br> and the signature itself
node.previousSibling.remove(); // remove the element that contains a leftover newline (<br>) ( children[1] )
node.remove(); // remove the signature element itself ( children[2] )
// Simulate a 'Delete' key press on the message textarea to remove the remaining <br> element ( children[0] )
parent.firstChild.dispatchEvent(new KeyboardEvent('keydown', {'key':'Delete'} ));
parent.firstChild.dispatchEvent(new KeyboardEvent( 'keyup' , {'key':'Delete'} ));
observer.disconnect();
}
});
});
};
const observer = new MutationObserver(callback);
observer.observe(iframe, config);
});