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9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
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23 
24 /*
25  * @test
26  * @key headful
27  * @bug 6694823
28  * @summary Checks that popup menu cannot be partially hidden
29  * by the task bar in applets.
30  * @author Mikhail Lapshin
31  * @run main bug6694823
32  */
33 
34 import javax.swing.*;
35 import java.awt.*;
36 import java.security.Permission;
37 
38 public class bug6694823 {
39     private static JFrame frame;
40     private static JPopupMenu popup;
41     private static Toolkit toolkit;
42     private static Insets screenInsets;
43     private static Robot robot;
44 
main(String[] args)45     public static void main(String[] args) throws Exception {
46         robot = new Robot();
47         toolkit = Toolkit.getDefaultToolkit();
48         SwingUtilities.invokeAndWait(new Runnable() {
49             public void run() {
50                 createGui();
51             }
52         });
53 
54         robot.waitForIdle();
55 
56         // Get screen insets
57         screenInsets = toolkit.getScreenInsets(frame.getGraphicsConfiguration());
58         if (screenInsets.bottom == 0) {
59             // This test is only for configurations with taskbar on the bottom
60             return;
61         }
62 
63         System.setSecurityManager(new SecurityManager(){
64 
65             @Override
66             public void checkPermission(Permission perm) {
67                 if (perm.getName().equals("setWindowAlwaysOnTop") ) {
68                     throw new SecurityException();
69                 }
70             }
71 
72         });
73 
74         // Show popup as if from an applet
75         // The popup shouldn't overlap the task bar. It should be shifted up.
76         checkPopup();
77 
78     }
79 
createGui()80     private static void createGui() {
81         frame = new JFrame();
82         frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
83         frame.setUndecorated(true);
84 
85         popup = new JPopupMenu("Menu");
86         for (int i = 0; i < 7; i++) {
87             popup.add(new JMenuItem("MenuItem"));
88         }
89         JPanel panel = new JPanel();
90         panel.setComponentPopupMenu(popup);
91         frame.add(panel);
92 
93         frame.setSize(200, 200);
94     }
95 
checkPopup()96     private static void checkPopup() throws Exception {
97         SwingUtilities.invokeAndWait(new Runnable() {
98             public void run() {
99                 // Place frame just above the task bar
100                 Dimension screenSize = toolkit.getScreenSize();
101                 frame.setLocation(screenSize.width / 2,
102                         screenSize.height - frame.getHeight() - screenInsets.bottom);
103                 frame.setVisible(true);
104             }
105         });
106 
107         // Ensure frame is visible
108         robot.waitForIdle();
109 
110         final Point point = new Point();
111         SwingUtilities.invokeAndWait(new Runnable() {
112             public void run() {
113                 // Place popup over the task bar
114                 point.x = 0;
115                 point.y = frame.getHeight() - popup.getPreferredSize().height + screenInsets.bottom;
116                 popup.show(frame, point.x, point.y);
117             }
118         });
119 
120         // Ensure popup is visible
121         robot.waitForIdle();
122 
123         SwingUtilities.invokeAndWait(new Runnable() {
124 
125             public void run() {
126                 Point frameLoc = frame.getLocationOnScreen();
127                 if (popup.getLocationOnScreen().equals(new Point(frameLoc.x, frameLoc.y + point.y))) {
128                     throw new RuntimeException("Popup is not shifted");
129                 }
130                 popup.setVisible(false);
131                 frame.dispose();
132             }
133         });
134     }
135 }
136