public void chooseFolder(String caption,
FileSystemContext fsContext,
FileSystemItem initialDir,
ProgressOperationWithInput<FileSystemItem> operation)
{
ChooseFolderDialog2 dialog = new ChooseFolderDialog2(caption,
fsContext,
operation);
dialog.setInvokeOperationEvenOnCancel(true);
if (initialDir != null)
fsContext.cd(initialDir.getPath());
else
fsContext.refresh();
dialog.showModal();
}