/*
 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 */
package tests;

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Bounds;
import javafx.geometry.Point2D;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.stage.Popup;
import javafx.stage.Stage;

/**
 *
 * @author slions
 */
public class Test extends Application {

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

    @Override
    public void start(Stage primaryStage) {

        final Button button = new Button("Click on me");
        button.setLayoutX(50);
        button.setLayoutY(50);

        button.setOnAction(new EventHandler<ActionEvent>() {

            @Override
            public void handle(ActionEvent t) {
                startEditingSession(button);
            }
        });

        final Scene scene = new Scene(new Group(), 800, 500);
        final Group root = (Group) scene.getRoot();
        root.getChildren().clear();
        root.getChildren().addAll(button);

        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public void startEditingSession(final Node anchor) {
        final TextArea textArea = new TextArea();
        final Popup popup = new Popup();
        popup.getContent().add(textArea);

        final Bounds anchorBounds = anchor.getLayoutBounds();

        final Point2D popupLocation = anchor.localToScreen(anchorBounds.getMinX(), anchorBounds.getMinY());
        popup.setX(popupLocation.getX());
        popup.setY(popupLocation.getY());

        popup.show(anchor.getScene().getWindow());
    }
}