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ProtonMail - remove forced signature

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

  1. // ==UserScript==
  2. // @name        ProtonMail - remove forced signature
  3. // @namespace   darkred
  4. // @version     2023.6.1
  5. // @description Removes the forced ProtonMail signature from the 'New message' textboxes
  6. // @author      darkred
  7. // @license     MIT
  8. // @include     https://mail.protonmail.com/*
  9. // @include     https://mail.proton.me/*
  10. // @include     https://protonirockerxow.onion/*
  11. // @include     https://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion/*
  12. // @grant       none
  13. // @require     https://greasyfork.org/scripts/21927-arrive-js/code/arrivejs.js
  14. // @supportURL  https://github.com/darkred/Userscripts/issues
  15. // @icon        https://proton.me/favicons/favicon.ico
  16. // ==/UserScript==
  17.  
  18. const elementToWatch = 'iframe[title="Email composer"]';
  19. document.arrive(elementToWatch, function () {
  20. 	let iframe = this.contentDocument; // refers to the newly created element
  21.  
  22. 	const config = {
  23. 		childList: true,
  24. 		subtree: true
  25. 	};
  26.  
  27. 	const callback = function(mutationList, observer) {
  28. 		mutationList.forEach( (mutation) => {
  29. 			mutation.addedNodes.forEach( (node) => {
  30.  
  31. 				const refNode = 'protonmail_signature_block';
  32.  
  33. 				if (node.className === refNode) {
  34.  
  35. 					// DOM STRUCTURE:
  36. 					//
  37. 					// The 2 previous element siblings of the main signature element, '.protonmail_signature_block', both contain a <div> element with a <br> inside, i.e. <br>  =   <div> \ <br>  ) :
  38. 					//                                  <div> \ <br>  |  <div> \ <br>  |  .protonmail_signature_block
  39. 					//
  40. 					// The '.protonmail_signature_block' itself has either 3 or 2 <div> children which can be:
  41. 					//
  42. 					// (when user signature doesn't exist) the (empty) user signature , and the proton signature
  43. 					// .protonmail_signature_block-user.protonmail_signature_block-empty | .protonmail_signature_block-proton
  44. 					//
  45. 					// (when user signature exists) the user signature , 1 <div> \ <br> , and the signature itself
  46. 					//       .protonmail_signature_block-user                    |  <div> \ <br>  |  .protonmail_signature_block-proton
  47. 					//
  48. 					// The script's functionality is:
  49. 					// 1a. If user signature exists(=it's not empty), to remove the  <div> \ <br>  element before the last element ('.protonmail_signature_block-proton') ...
  50. 					// 1b. ... otherwise to remove the 2 <div> \ <br> elements before the main/reference '.protonmail_signature_block' element.
  51. 					// 2. To remove the last element ('.protonmail_signature_block-proton') itself.
  52. 					//
  53. 					// See DOM screenshots: https://imgur.com/a/VEI4nDQ
  54.  
  55.  
  56. 					const signatureProton = '.protonmail_signature_block-proton';
  57.  
  58.  
  59. 					if (!node.firstElementChild.classList.contains('protonmail_signature_block-empty')){
  60. 						node.querySelector(signatureProton).previousElementSibling.remove();
  61. 					} else {
  62. 						node.previousElementSibling.remove();
  63. 						node.previousElementSibling.remove();
  64. 					}
  65.  
  66. 					node.querySelector(signatureProton).remove();
  67.  
  68.  
  69. 					observer.disconnect();
  70. 				}
  71. 			});
  72.  
  73. 		});
  74. 	};
  75.  
  76. 	const observer = new MutationObserver(callback);
  77. 	observer.observe(iframe, config);
  78.  
  79. });