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Altium viewer - disable number hotkeys

Suppress some number keys in online altium viewer, to prevent accidentally switching between e.g. schematic and PCB views.

  1. // ==UserScript==
  2. // @name         Altium viewer - disable number hotkeys
  3. // @namespace    http://www.stderr.nl/
  4. // @version      2024-09-03
  5. // @description  Suppress some number keys in online altium viewer, to prevent accidentally switching between e.g. schematic and PCB views.
  6. // @author       Matthijs Kooijman <matthijs@stdin.nl>
  7. // @license      The MIT license; http://opensource.org/licenses/MIT
  8. // @match        https://cdn.365.altium.com/microfrontends/viewer/*
  9. // @grant        none
  10. // @run-at       document-start
  11. // ==/UserScript==
  12.  
  13. // Number keys can be used to switch between schematic, PCB and 3D views. When running Firefox
  14. // on Gnome, switching between virtual desktops with super-1/2/3 seems to deliver the keyup event
  15. // for that to the website, causing altium viewer to switch modes. This might be a gnome-shell bug,
  16. // but this script eats up those keyup events to work around this.
  17.  
  18. // This script matches the URL of the viewer iframe in the altium webpage, since that is where the key events
  19. // are handled (and if the iframe is focused, the outer document never sees the events).
  20.  
  21. // Approach is based on https://stackoverflow.com/a/19785922/740048
  22.  
  23. (function() {
  24.     'use strict';
  25.     var keys = ['1', '2', '3'];
  26.     document.addEventListener('keyup', function(e) {
  27.         // console.log("KEY EVT", e);
  28.         if (keys.indexOf(e.key) != -1) {
  29.             console.log("CANCELING EVT", e);
  30.             e.cancelBubble = true;
  31.             e.stopImmediatePropagation();
  32.         }
  33.         return false;
  34.     }, {capture: true});
  35. })();