Remaps QWERTY key codes to Colemak-DH for Google Remote Desktop
// ==UserScript==
// @name Colemak-DH Remapper for Remote Desktop
// @namespace http://tampermonkey.net/
// @version 0.5
// @description Remaps QWERTY key codes to Colemak-DH for Google Remote Desktop
// @author Michael M
// @license LGPL-3.0-or-later
// @match https://remotedesktop.google.com/*
// @grant none
// @run-at document-start
// ==/UserScript==
(function() {
'use strict';
const keyMap = {
'Digit7': 'Equal',
'Digit8': 'Digit7',
'Digit9': 'Digit8',
'Digit0': 'Digit9',
'Minus': 'Digit0',
'Equal': 'Minus',
'KeyQ': 'KeyQ',
'KeyW': 'KeyW',
'KeyE': 'KeyF',
'KeyR': 'KeyP',
'KeyT': 'KeyB',
'KeyY': 'BracketLeft',
'KeyU': 'KeyJ',
'KeyI': 'KeyL',
'KeyO': 'KeyU',
'KeyP': 'KeyY',
'BracketLeft': 'Semicolon',
'BracketRight': 'Slash',
'KeyA': 'KeyA',
'KeyS': 'KeyR',
'KeyD': 'KeyS',
'KeyF': 'KeyT',
'KeyG': 'KeyG',
'KeyH': 'BracketRight',
'KeyJ': 'KeyM',
'KeyK': 'KeyN',
'KeyL': 'KeyE',
'Semicolon': 'KeyI',
'Quote': 'KeyO',
'Backslash': 'Quote',
'IntlBackslash': 'KeyZ',
'KeyZ': 'KeyX',
'KeyX': 'KeyC',
'KeyC': 'KeyD',
'KeyV': 'KeyV',
'KeyB': 'Backslash',
'KeyN': 'KeyN', // KeyN is handled separately since the #/~ key has no code
'KeyM': 'KeyK',
'Comma': 'KeyH',
'Period': 'Comma',
'Slash': 'Period',
};
const remapper = (e) => {
// Only process events generated by the user, not by this script.
if (!e.isTrusted) {
return;
}
if (keyMap[e.code] && e.target.getAttribute('jsname') === 'fQxT4c') {
e.preventDefault();
e.stopPropagation();
// Handle 'n' and 'N' mapping
let newCode = (e.code === 'KeyN') ? (e.shiftKey ? 'Backquote' : 'Digit3') : keyMap[e.code]
const newEvent = new KeyboardEvent('keydown', {
key: e.key,
code: newCode,
bubbles: true,
cancelable: true,
composed: true,
location: e.location,
ctrlKey: e.ctrlKey,
shiftKey: ((e.code === 'KeyN') || (e.shiftKey)),
altKey: e.altKey,
metaKey: e.metaKey,
repeat: e.repeat,
});
if (e.code === 'KeyN' && !e.shiftKey) {
e.target.dispatchEvent(new KeyboardEvent('keydown', {
key: 'Shift',
code: 'ShiftLeft',
bubbles: true,
cancelable: true,
composed: true,
location: 1, // left shift
}));
e.target.dispatchEvent(newEvent);
e.target.dispatchEvent(new KeyboardEvent('keyup', {
key: 'Shift',
code: 'ShiftLeft',
bubbles: true,
cancelable: true,
composed: true,
location: 1
}));
} else {
e.target.dispatchEvent(newEvent);
}
}
};
document.addEventListener('keydown', remapper, true);
})();