8296934: Write a test to verify whether Undecorated Frame can be icon…

…ified or not

Backport-of: 7845b0d7b4193688448b7bf0c427df4976d302e5

test/jdk/java/awt/Frame/Iconify/IconifyTest.java

@@ -0,0 +1,200 @@
+/*
+ * Copyright (c) 1999, 2022, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.awt.AWTException;
+import java.awt.Button;
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.FlowLayout;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.InputEvent;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.lang.reflect.InvocationTargetException;
+import java.util.concurrent.atomic.AtomicReference;
+import javax.swing.SwingUtilities;
+
+/*
+ * @test
+ * @key headful
+ * @bug 8296934
+ * @summary Verifies whether Undecorated Frame can be iconified or not.
+ * @run main IconifyTest
+ */
+public class IconifyTest {
+
+    private static Robot robot;
+    private static Button button;
+    private static Frame frame;
+    private static volatile int windowStatusEventType;
+    private static volatile int windowIconifiedEventType;
+    private static volatile boolean focusGained = false;
+
+    public static void initializeGUI() {
+        frame = new Frame();
+        frame.setLayout(new FlowLayout());
+        frame.setSize(200, 200);
+        frame.setUndecorated(true);
+
+        frame.addWindowFocusListener(new WindowAdapter() {
+            public void windowGainedFocus(WindowEvent event) {
+                focusGained = true;
+            }
+        });
+
+        frame.addWindowListener(new WindowAdapter() {
+            public void windowActivated(WindowEvent e) {
+                windowStatusEventType = WindowEvent.WINDOW_ACTIVATED;
+                System.out.println("Event encountered: " + e);
+            }
+
+            public void windowIconified(WindowEvent e) {
+                windowIconifiedEventType = WindowEvent.WINDOW_ICONIFIED;
+                System.out.println("Event encountered: " + e);
+            }
+
+            public void windowDeiconified(WindowEvent e) {
+                windowIconifiedEventType = WindowEvent.WINDOW_DEICONIFIED;
+                System.out.println("Event encountered: " + e);
+            }
+
+            public void windowDeactivated(WindowEvent e) {
+                windowStatusEventType = WindowEvent.WINDOW_DEACTIVATED;
+                System.out.println("Event encountered: " + e);
+            }
+        });
+
+        button = new Button("Minimize me");
+        button.addActionListener(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                frame.setExtendedState(Frame.ICONIFIED);
+            }
+        });
+
+        frame.setBackground(Color.green);
+        frame.add(button);
+        frame.setLocationRelativeTo(null);
+        frame.toFront();
+        frame.setVisible(true);
+    }
+
+    public static void main(String[] args) throws AWTException,
+            InvocationTargetException, InterruptedException {
+        robot = new Robot();
+        try {
+            robot.setAutoDelay(100);
+            robot.setAutoWaitForIdle(true);
+
+            SwingUtilities.invokeAndWait(IconifyTest::initializeGUI);
+            final AtomicReference<Point> frameloc = new AtomicReference<>();
+            final AtomicReference<Dimension> framesize = new AtomicReference<>();
+            SwingUtilities.invokeAndWait(() -> {
+                frameloc.set(frame.getLocationOnScreen());
+                framesize.set(frame.getSize());
+            });
+            Point locOnScreen = frameloc.get();
+            Dimension frameSizeOnScreen = framesize.get();
+
+            robot.mouseMove(locOnScreen.x + frameSizeOnScreen.width / 2,
+                    locOnScreen.y + frameSizeOnScreen.height / 2);
+            robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+            robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+            if (windowStatusEventType != WindowEvent.WINDOW_ACTIVATED) {
+                throw new RuntimeException(
+                        "FAIL: WINDOW_ACTIVATED event did not occur when the undecorated frame is activated!");
+            }
+            clearEventTypeValue();
+            final AtomicReference<Point> buttonloc = new AtomicReference<>();
+            final AtomicReference<Dimension> buttonsize = new AtomicReference<>();
+            SwingUtilities.invokeAndWait(() -> {
+                buttonloc.set(button.getLocationOnScreen());
+                buttonsize.set(button.getSize());
+            });
+            Point buttonLocOnScreen = buttonloc.get();
+            Dimension buttonSizeOnScreen = buttonsize.get();
+
+            robot.mouseMove(buttonLocOnScreen.x + buttonSizeOnScreen.width / 2,
+                    buttonLocOnScreen.y + buttonSizeOnScreen.height / 2);
+            robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+            robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+
+            if (windowIconifiedEventType != WindowEvent.WINDOW_ICONIFIED) {
+                throw new RuntimeException(
+                        "FAIL: WINDOW_ICONIFIED event did not occur when the undecorated frame is iconified!");
+            }
+            if (windowStatusEventType != WindowEvent.WINDOW_DEACTIVATED) {
+                throw new RuntimeException(
+                        "FAIL: WINDOW_DEACTIVATED event did not occur when the undecorated frame is iconified!");
+            }
+            final AtomicReference<Boolean> frameHasFocus = new AtomicReference<>();
+            SwingUtilities
+                    .invokeAndWait(() -> frameHasFocus.set(frame.hasFocus()));
+            final boolean hasFocus = frameHasFocus.get();
+            if (hasFocus) {
+                throw new RuntimeException(
+                        "FAIL: The undecorated frame has focus even when it is iconified!");
+            }
+
+            clearEventTypeValue();
+
+            SwingUtilities
+                    .invokeAndWait(() -> frame.setExtendedState(Frame.NORMAL));
+            robot.waitForIdle();
+
+            if (windowIconifiedEventType != WindowEvent.WINDOW_DEICONIFIED) {
+                throw new RuntimeException(
+                        "FAIL: WINDOW_DEICONIFIED event did not occur when the state is set to NORMAL!");
+            }
+            if (windowStatusEventType != WindowEvent.WINDOW_ACTIVATED) {
+                throw new RuntimeException(
+                        "FAIL: WINDOW_ACTIVATED event did not occur when the state is set to NORMAL!");
+            }
+            if (!focusGained) {
+                throw new RuntimeException(
+                        "FAIL: The undecorated frame does not have focus when it is deiconified!");
+            }
+            System.out.println("Test passed");
+        }
+        finally {
+            SwingUtilities.invokeAndWait(IconifyTest::disposeFrame);
+        }
+    }
+
+    public static void disposeFrame() {
+        if (frame != null) {
+            frame.dispose();
+            frame = null;
+        }
+    }
+
+    public static void clearEventTypeValue() {
+        windowIconifiedEventType = -1;
+        windowStatusEventType = -1;
+        focusGained = false;
+    }
+}
+