String (Object element) { if (element instanceof UsageInfo) { final PsiElement psiElement = ((UsageInfo)element).getElement(); final PsiFile file = psiElement == null ? null : psiElement.getContainingFile(); return file == null ? null : file.getPresentation().getPresentableText();//+- // todo do smthg for invalid usage } if (element instanceof File) { return ((File)element).getParent(); } return null; }