private static boolean isMyContext(@NotNull PsiElement deepestElement) {
    final PsiFile file = deepestElement.getContainingFile();
    if (file == null || !XmlTagTreeHighlightingUtil.isTagTreeHighlightingActive(file)) {
      return false;
    }
    return true;
  }
private static boolean isMyContext(@NotNull PsiElement deepestElement)