Function onKeyDown

app/static/js/app.js:110–160

* @param {KeyboardEvent} evt - https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent

(evt)

 * @param {KeyboardEvent} evt - https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent
 */
function onKeyDown(evt) {
  if (overlayTracker.hasOverlays()) {
    return;
  }

  const canonicalCode = keystrokeToCanonicalCode(evt);

  if (isIgnoredKeystroke(canonicalCode)) {
    return;
  }

  keyboardState.onKeyDown(evt);

  if (!connectedToServer) {
    return;
  }
  if (!evt.metaKey) {
    evt.preventDefault();
  }

  const onScreenKeyboard = document.getElementById("on-screen-keyboard");

  processKeystroke({
    metaLeft:
      keyboardState.isKeyPressed("MetaLeft") ||
      onScreenKeyboard.isModifierKeyPressed("MetaLeft"),
    metaRight:
      keyboardState.isKeyPressed("MetaRight") ||
      onScreenKeyboard.isModifierKeyPressed("MetaRight"),
    altLeft:
      keyboardState.isKeyPressed("AltLeft") ||
      onScreenKeyboard.isModifierKeyPressed("AltLeft"),
    altRight:
      keyboardState.isKeyPressed("AltRight") ||
      onScreenKeyboard.isModifierKeyPressed("AltRight"),
    shiftLeft:
      keyboardState.isKeyPressed("ShiftLeft") ||
      onScreenKeyboard.isModifierKeyPressed("ShiftLeft"),
    shiftRight:
      keyboardState.isKeyPressed("ShiftRight") ||
      onScreenKeyboard.isModifierKeyPressed("ShiftRight"),
    ctrlLeft:
      keyboardState.isKeyPressed("ControlLeft") ||
      onScreenKeyboard.isModifierKeyPressed("ControlLeft"),
    ctrlRight:
      keyboardState.isKeyPressed("ControlRight") ||
      onScreenKeyboard.isModifierKeyPressed("ControlRight"),
    key: evt.key,
    code: canonicalCode,
  });
}

function sendMouseEvent(
  buttons,