ProtonMail - remove forced signature

Removes the forced ProtonMail signature from the 'New message' textboxes

Від 07.05.2022. Дивіться остання версія.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

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.

(I already have a user style manager, let me install it!)

// ==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);

});