@Override
  public void showFindDialog(@NotNull FindModel model, @NotNull Runnable okHandler) {
    if (myHelper == null || Disposer.isDisposed(myHelper)) {
      myHelper = new FindUIHelper(myProject, model, okHandler);
        Disposer.register(myHelper, () -> myHelper = null);
    }
    else {
      myHelper.setModel(model);
      myHelper.setOkHandler(okHandler);
    }
    myHelper.showUI();
  }
@Override
  public void showFindDialog(@NotNull FindModel model, @NotNull Runnable okHandler)