@Override
  public boolean canSelectInLeftTree(final Map<PsiFile, Set<PsiFile>> deps) {
    Set<PsiFile> files = deps.keySet();
    for (PsiFile file : files) {
      if (file.getContainingDirectory() == getPsiDirectory()) {
        return true;
      }
    }
    return false;
  }
@Override
  public boolean canSelectInLeftTree(final Map<PsiFile, Set<PsiFile>> deps)