@Nullable
  private static PsiElement getElementToCopy(
      @Nullable final Editor editor, final DataContext dataContext) {
    PsiElement element = null;
    if (editor != null) {
      PsiReference reference = TargetElementUtilBase.findReference(editor);
      if (reference != null) {
        element = reference.getElement();
      }
    }

    if (element == null) {
      element = LangDataKeys.PSI_ELEMENT.getData(dataContext);
    }
    if (element == null && editor == null) {
      VirtualFile virtualFile = PlatformDataKeys.VIRTUAL_FILE.getData(dataContext);
      Project project = PlatformDataKeys.PROJECT.getData(dataContext);
      if (virtualFile != null && project != null) {
        element = PsiManager.getInstance(project).findFile(virtualFile);
      }
    }
    if (element instanceof PsiFile && !((PsiFile) element).getViewProvider().isPhysical()) {
      return null;
    }

    for (QualifiedNameProvider provider : Extensions.getExtensions(QualifiedNameProvider.EP_NAME)) {
      PsiElement adjustedElement = provider.adjustElementToCopy(element);
      if (adjustedElement != null) return adjustedElement;
    }
    return element;
  }
 @Nullable
 private static String getQualifiedNameFromProviders(@Nullable PsiElement element) {
   if (element == null) return null;
   for (QualifiedNameProvider provider : Extensions.getExtensions(QualifiedNameProvider.EP_NAME)) {
     String result = provider.getQualifiedName(element);
     if (result != null) return result;
   }
   return null;
 }