@Nullable
  public VirtualFile getSelectedVcsFile() {
    final RepositoryTreeNode node = getSelectedNode();
    if (node == null) return null;

    DirectoryEntry entry = node.getSVNDirEntry();
    if (entry == null || !entry.isFile()) {
      return null;
    }

    String name = entry.getName();
    FileTypeManager manager = FileTypeManager.getInstance();

    if (entry.getName().lastIndexOf('.') > 0 && !manager.getFileTypeByFileName(name).isBinary()) {
      Url url = node.getURL();
      SvnFileRevision revision =
        new SvnFileRevision(myVCS, Revision.UNDEFINED, Revision.HEAD, url, entry.getAuthor(), entry.getDate(), null, null);

      return new VcsVirtualFile(node.getSVNDirEntry().getName(), revision, VcsFileSystem.getInstance());
    }
    else {
      return null;
    }
  }
@Nullable
  public VirtualFile getSelectedVcsFile()