@Nullable
  public String suggestLastSelectedPropertiesFileUrl(PsiFile context) {
    VirtualFile virtualFile = context.getVirtualFile();

    while (virtualFile != null) {
      String contextUrl = virtualFile.getUrl();
      String url = lastSelectedUrls.get(contextUrl);
      if (url != null) {
        return url;
      }
      virtualFile = virtualFile.getParent();
    }
    if (lastSelectedFileUrl != null) {
      VirtualFile lastFile = VirtualFileManager.getInstance().findFileByUrl(lastSelectedFileUrl);
      final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(context.getProject()).getFileIndex();
      if (lastFile != null && ModuleUtilCore.findModuleForPsiElement(context) == fileIndex.getModuleForFile(lastFile)) {
        return lastSelectedFileUrl;
      }
    }
    return null;
  }
@Nullable
  public String suggestLastSelectedPropertiesFileUrl(PsiFile context)