在JavaFX中使用键盘快捷键时，ContextMenu不会保持焦点

Question

我有一个使用TreeView用JavaFX编写的应用程序，ContextMenu依赖于所选的TreeItem，我的TreeCell实现使用setOnContextMenuRequested（）来显示ContextMenu，每当我右键单击一个节点时，这都可以正常工作。我现在想要在使用键盘导航树并使用Windows上下文菜单的标准快捷键（SHIFT + F10）时实现相同的目标，我几乎设法做到了，它显示了ContextMenu但是当我尝试使用导航时用于选择菜单中的项目的键，它会显示主应用程序窗口的上下文菜单并在其中导航，同时我想显示靠近所选单元格的上下文菜单，我该怎么做？下面是一个展示我的问题的小应用程序

import javafx.application.Application;
import javafx.geometry.Bounds;
import javafx.geometry.Point2D;
import javafx.scene.Scene;
import javafx.scene.control.ContextMenu;
import javafx.scene.control.MenuItem;
import javafx.scene.control.TreeCell;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeView;
import javafx.scene.input.ContextMenuEvent;
import javafx.scene.input.PickResult;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;

public class Main extends Application
{
    @Override
    public void start(Stage primaryStage)
    {
    try
    {
        BorderPane root = new BorderPane();

        TreeView<String> treeView = new TreeView<>();
        TreeItem<String> treeRoot = new TreeItem<>("Root");

        for (int i = 1; i <= 5; i++)
        {
            TreeItem<String> child = new TreeItem<>("Item " + i);
            child.getChildren().addAll(new TreeItem<>("Item " + i + "A"), new TreeItem<>("Item " + i + "B"));
            treeRoot.getChildren().add(child);
        }
        treeView.setRoot(treeRoot);

        root.setCenter(treeView);

        ContextMenu contextMenu = new ContextMenu();

        for (int i = 1; i <= 3; i++)
        {
            String text = "Choice " + i;
            MenuItem menuItem = new MenuItem(text);
            menuItem.setOnAction(event -> System.out.println(text));
            contextMenu.getItems().add(menuItem);
        }

        treeView.addEventHandler(ContextMenuEvent.CONTEXT_MENU_REQUESTED, event ->
            {
                PickResult pickResult = event.getPickResult();

                if (pickResult != null && pickResult.getIntersectedNode() != null)
                {
                    TreeCell<String> cell = (TreeCell<String>) pickResult.getIntersectedNode();

                    Bounds bounds = cell.getBoundsInParent();
                    double x = bounds.getMinX() + (bounds.getWidth() / 2);
                    double y = bounds.getMinY() + (bounds.getHeight() / 2);
                    Point2D loc = cell.getParent().localToScreen(x, y);
                    contextMenu.show(cell, loc.getX(), loc.getY());
                }

            });

        Scene scene = new Scene(root, 400, 400);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
    catch (Exception ex)
    {
        ex.printStackTrace();
    }
}

public static void main(String[] args)
{
    launch(args);
}

}