@Override
  protected boolean isEnabled(@NotNull SvnVcs vcs, @NotNull VirtualFile file) {
    return !file.isDirectory() && isUnderControl(vcs, file) && !isAdded(vcs, file) && !isExplicitlyLocked(vcs, file);
  }
@Override
  protected boolean isEnabled(@NotNull SvnVcs vcs, @NotNull VirtualFile file)