如果鼠标单击两次，如何启用TitledPane的展开

Question

仅当鼠标单击两次时，我才想展开/折叠标题窗格...我尝试了以下操作，但不起作用

如果单击两次，标题窗格将展开/折叠。但是如果只有一次，则信息窗格将更新其内容。

package DummyGUI;
import javafx.application.Application;

import javafx.scene.*;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.stage.*;
import javafx.event.ActionEvent;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;

public class App extends Application
{
private final VBox infoPane;
private final Image male = new Image(getClass().getResourceAsStream("male.png"), 16, 16, true, true);

private final Image female = new Image(getClass().getResourceAsStream("female.png"), 16, 16, true, true);

public static void main(String[] args) 
{
    launch();
}
public void start(Stage topView)
{
    createGUI(topView);
}

private void handleAcc(MouseEvent e, TitledPane p, Person r)
{
    if(e.getClickCount() == 1)
    {
        updateInfoPane(r);
    }
    else if(e.getClickCount() > 1)
    {
        p.setExpanded(true);
    }
}

private void updateInfoPane()
{
     // update info pane 
}
private void createGUI(Stage topView)
{
    topView.setTitle("Dummy App");

    Accordion accordion = new Accordion();        
    Person r = new Person("Maria", "Kim");
    VBox vb = new VBox();
    infoPane = new VBox();
    Node nd = (Node)vb;
    TitledPane tp = new TitledPane(r.getFName() + " " + r.getSurname(), nd);
    tp.setOnMouseClicked(e -> handleAcc(e, tp, r));
    tp.setOnMousePressed(e -> handleAcc(e, tp, r));
    tp.setOnMouseReleased(e -> handleAcc(e, tp, r));
    tp.setOnMouseEntered(e -> handleAcc(e, tp, r));

    accordion.getPanes().add(tp);
    vb.getChildren().addAll(accordion, infoPane);

    topView.setScene(new Scene(vb));

    topView.show();
}

问题是，单击1会使其仍然展开/折叠，并且信息窗格同时更新。如何使其仅在2次点击中展开/折叠？谢谢