jdk-24/test/jdk/java/awt/Component/NativeInLightShow/NativeInLightShow.java

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/*
  @test 1.0 04/05/20
  @key headful
  @bug 4140484
  @summary Heavyweight components inside invisible lightweight containers still show
  @author Your Name: art@sparc.spb.su
  @run main NativeInLightShow
*/

import java.awt.*;
import java.awt.event.*;


// The test verifies that the mixing code correctly handles COMPONENT_SHOWN events
// while the top-level container is invisible.

public class NativeInLightShow
{
    //Declare things used in the test, like buttons and labels here
    static boolean buttonPressed = false;
    public static void main(String args[]) throws Exception {
        Frame f = new Frame("Test");

        Robot robot = null;
        robot = new Robot();
        robot.setAutoDelay(50);

        Container c = new Container();
        c.setLayout(new BorderLayout());
        Button b = new Button("I'm should be visible!");
        b.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e) {
                System.out.println("Test PASSED");
                buttonPressed = true;
            }
        });
        c.add(b);

        f.add(c);

        f.pack();

        c.setVisible(false);
        c.setVisible(true);

        // Wait for a while for COMPONENT_SHOW event to be dispatched
        robot.waitForIdle();

        f.setVisible(true);

        robot.waitForIdle();

        Point buttonLocation = b.getLocationOnScreen();

        robot.mouseMove(buttonLocation.x + 5, buttonLocation.y + 5);
        robot.mousePress(InputEvent.BUTTON1_MASK);
        robot.mouseRelease(InputEvent.BUTTON1_MASK);

        // Wait for a while for ACTION event to be dispatched
        robot.waitForIdle();
        robot.delay(100);

        if (!buttonPressed) {
            System.out.println("Test FAILED");
            throw new RuntimeException("Button was not pressed");
        }
    }

}