@Override
    public void update(@NotNull AnActionEvent e) {
      if (DiffUtil.isFromShortcut(e)) {
        // consume shortcut even if there are nothing to do - avoid calling some other action
        e.getPresentation().setEnabledAndVisible(true);
        return;
      }

      Editor editor = e.getData(CommonDataKeys.EDITOR);
      Side side = Side.fromValue(getEditors(), editor);
      if (side == null || !isVisible(side)) {
        e.getPresentation().setEnabledAndVisible(false);
        return;
      }

      e.getPresentation().setText(getText(side));
      e.getPresentation().setIcon(getIcon(side));

      e.getPresentation().setVisible(true);
      e.getPresentation().setEnabled(isSomeChangeSelected(side));
    }
@Override
    public void update(@NotNull AnActionEvent e)