abstract sclass FileBrowser > DynObjectTable<File> {
  File dir;
  transient JTree tree;
  
  start {
    itemToMap = itemToMap_File();
  }

  visualize {
    ret jhsplit(
      tree = jDirectoryTree(dir),
      super.visualize());
  }
  
  // API
  void setDir(File dir) {
    setField(+dir);
    setData(sortFilesAlphaNumIC(listFilesOnly(dir)));
  }
}