如何从JFXtras模拟支持普通文本的LocalDateTextField？

import javafx.scene.control.TextField;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;

public class LocalDateTextField extends TextField {
    private DateTimeFormatter dateFormatter;
    
    public LocalDateTextField() {
        dateFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
    }
    
    public LocalDate getDate() {
        try {
            return LocalDate.parse(getText(), dateFormatter);
        } catch (DateTimeParseException e) {
            return null;
        }
    }
    
    public void setDate(LocalDate date) {
        setText(dateFormatter.format(date));
    }
}

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import java.time.LocalDate;

public class MainApp extends Application {
    @Override
    public void start(Stage primaryStage) {
        LocalDateTextField dateTextField = new LocalDateTextField();
        
        // 设置初始日期
        dateTextField.setDate(LocalDate.now());
        
        VBox root = new VBox(dateTextField);
        Scene scene = new Scene(root, 200, 100);
        
        primaryStage.setScene(scene);
        primaryStage.show();
    }
    
    public static void main(String[] args) {
        launch(args);
    }
}