// track current working dir
currentWorkingDir_ = FileSystemItem.home();
defaultFileDialogDir_ = FileSystemItem.home();
eventBus.addHandler(WorkingDirChangedEvent.TYPE,
new WorkingDirChangedHandler() {
@Override
public void onWorkingDirChanged(WorkingDirChangedEvent event)
{
currentWorkingDir_ = FileSystemItem.createDir(event.getPath());
defaultFileDialogDir_ = FileSystemItem.createDir(event.getPath());;