@Override
public void actionPerformed(ActionEvent arg0) {
JDirectoryChooser chooser = new JDirectoryChooser();
chooser.setShowingCreateDirectory(false);
int choice = chooser.showDialog(parent, "Add Folder");
if (choice == JFileChooser.APPROVE_OPTION) {
File folder = chooser.getSelectedFile();
controller.getLibraryManager().addFolder(folder);
}