@Override
  public VcsSelection getSelection(@NotNull DataContext context) {
    final Editor editor = context.getData(CommonDataKeys.EDITOR);
      if (editor == null) return null;
      PsiElement psiElement = TargetElementUtil.findTargetElement(editor, TargetElementUtil.ELEMENT_NAME_ACCEPTED);
      if (psiElement == null || !psiElement.isValid()) {
        return null;
      }

      final String actionName;

      if (psiElement instanceof XmlTag) {
        actionName = XmlBundle.message("action.name.show.history.for.tag");
      }
      else if (psiElement instanceof XmlText) {
        actionName = XmlBundle.message("action.name.show.history.for.text");
      }
      else {
        return null;
      }

      TextRange textRange = psiElement.getTextRange();
      if (textRange == null) {
        return null;
      }

      VirtualFile virtualFile = psiElement.getContainingFile().getVirtualFile();
      if (virtualFile == null) {
        return null;
      }
      if (!virtualFile.isValid()) {
        return null;
      }

      Document document = FileDocumentManager.getInstance().getDocument(virtualFile);
      if (document == null) {
        return null;
      }

      return new VcsSelection(document, textRange, actionName);
  }
@Override
  public VcsSelection getSelection(@NotNull DataContext context)