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/*
* Copyright (c) 2015, 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.
*/
/*
* @test
* @key headful
* @bug 8021961
* @summary To test setAlwaysOnTop functionality.
* @run main/othervm -Dsun.java2d.uiScale=1 ChildAlwaysOnTopTest
*/
import java.awt.Color;
import java.awt.Dialog;
import java.awt.Frame;
import java.awt.Window;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Panel;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
public class ChildAlwaysOnTopTest {
private static Window win1;
private static Window win2;
private static Point point;
private static Robot robot;
private static int caseNo = 0;
private static StringBuffer errorLog = new StringBuffer();
private static String[] errorMsg= new String[] {
" Scenario 1 Failed: alwaysOnTop window is sent back by another" +
" child window with setVisible().",
" Scenario 2 Failed: alwaysOnTop window is" +
" sent back by another child window with toFront().",
" Scenario 3 Failed: Failed to unset alwaysOnTop ",
};
public static void main(String[] args) throws Exception {
if (!Toolkit.getDefaultToolkit().isAlwaysOnTopSupported()) {
System.out.println("alwaysOnTop not supported by: "+
Toolkit.getDefaultToolkit().getClass().getName());
return;
}
// CASE 1 - JDialog without parent/owner
System.out.println("Testing CASE 1: JDialog without parent/owner");
caseNo = 1;
test(null);
System.out.println("CASE 1 Completed");
System.out.println();
// CASE 2 - JDialog with JFrame as owner
System.out.println("Testing CASE 2: JDialog with JFrame as owner");
caseNo = 2;
Window f = new Frame();
f.setBackground(Color.darkGray);
f.setSize(500, 500);
try {
test(f);
} finally {
f.dispose();
}
System.out.println("CASE 2 Completed");
System.out.println();
// CASE 3 - JDialog within another JDialog as owner
System.out.println("Testing CASE 3:Dialog within another"+
" JDialog as owner");
caseNo = 3;
f = new Frame();
f.setBackground(Color.darkGray);
f.setSize(500, 500);
f.setVisible(true);
f = new Dialog((Frame)f);
try {
test(f);
} finally {
((Frame)f.getParent()).dispose();
}
System.out.println("CASE 3 Completed");
System.out.println();
if (errorLog.isEmpty()) {
System.out.println("All three cases passed !!");
}
else {
throw new RuntimeException("Following cases and scenarios failed."+
" Please check the saved screenshots.\n"+ errorLog);
}
}
public static void test(Window parent) throws Exception {
try {
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
win1 = parent == null ? new JDialog() : new JDialog(parent);
win1.setName("Top");
win2 = parent == null ? new JDialog() : new JDialog(parent);
win2.setName("Behind");
JLabel label = new JLabel("TOP WINDOW");
// top window - green and smaller
win1.setSize(200, 200);
Panel panel = new Panel();
panel.setBackground(Color.GREEN);
panel.add(label);
win1.add(panel);
win1.setAlwaysOnTop(true);
// behind window - red and bigger
label = new JLabel("BEHIND WINDOW");
win2.setSize(300, 300);
panel = new Panel();
panel.setBackground(Color.RED);
panel.add(label);
win2.add(panel);
win1.setVisible(true);
win2.setVisible(true);
}
});
robot = new Robot();
robot.setAutoDelay(300);
robot.waitForIdle();
// Scenario 1: Trying to unset the alwaysOnTop (green window)
// by setting the setVisible to true for behind (red) window
System.out.println(" >> Testing Scenario 1 ...");
SwingUtilities.invokeAndWait(()-> {
point = win1.getLocationOnScreen();
win2.setVisible(true);
});
checkTopWindow(caseNo, 1, Color.GREEN);
/*---------------------------------------------------------------*/
// Scenario 2: Trying to unset the alwaysOnTop (green window)
// by setting toFront() to true for behind (red) window
System.out.println(" >> Testing Scenario 2 ...");
SwingUtilities.invokeAndWait(()-> {
win2.toFront();
if (parent != null) {
parent.setLocation(win1.getLocation());
parent.toFront();
}
});
checkTopWindow(caseNo, 2, Color.GREEN);
/*----------------------------------------------------------------*/
// Scenario 3: Trying to unset the alwaysOnTop (green window)
// by setting alwaysOnTop to false. The unsetting should work
// in this case and bring the red window to the top.
System.out.println(" >> Testing Scenario 3 ...");
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
win1.setAlwaysOnTop(false);
if (parent != null) {
parent.setVisible(false);
parent.setVisible(true);
}
}
});
robot.delay(300);
robot.waitForIdle();
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
win2.toFront();
}
});
checkTopWindow(caseNo, 3, Color.RED);
} finally {
if (win1 != null) {
SwingUtilities.invokeAndWait(()-> win1.dispose());
}
if (win2 != null) {
SwingUtilities.invokeAndWait(()-> win2.dispose());
}
}
}
// to check if the current top window background color
// matches the expected color
private static void checkTopWindow(int caseNo, int scenarioNo,
Color expectedColor) {
robot.delay(500);
robot.waitForIdle();
Color actualColor = robot.getPixelColor(point.x + 100, point.y + 100);
saveScreenCapture(caseNo , scenarioNo);
if (!actualColor.equals(expectedColor)) {
System.out.println(" >> Scenario "+ scenarioNo +" FAILED !!");
errorLog.append("Case "+ caseNo + errorMsg[scenarioNo - 1]
+" Expected Color: "+ expectedColor +" vs Actual Color: "
+ actualColor +"\n");
}
else {
System.out.println(" >> Scenario "+ scenarioNo +" Passed");
}
}
// For Debugging purpose - method used to save the screen capture as
// BufferedImage in the event the test fails
private static void saveScreenCapture(int caseNo, int scenarioNo) {
String filename = "img_"+ caseNo +"_"+ scenarioNo;
BufferedImage image = robot.createScreenCapture(
new Rectangle(0, 0, 500, 500));
try {
ImageIO.write(image, "png", new File(filename));
} catch (IOException e) {
e.printStackTrace();
}
}
}
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