1 /*

     2  * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package sun.awt;

    27 

    28 import java.awt.Window;

    29 

    30 import java.lang.reflect.Field;

    31 

    32 import java.util.logging.Logger;

    33 import java.util.logging.Level;

    34 

    35 import java.security.AccessController;

    36 import java.security.PrivilegedAction;

    37 

    38 public class WindowAccessor {

    39 

    40     private static Class windowClass;

    41     private static Field fieldIsAutoRequestFocus;

    42     private static Field fieldIsTrayIconWindow;

    43 

    44     private static final Logger log = Logger.getLogger("sun.awt.WindowAccessor");

    45 

    46     private WindowAccessor() {

    47     }

    48 

    49     static {

    50         AccessController.doPrivileged( new PrivilegedAction() {

    51                 public Object run() {

    52                     try {

    53                         windowClass = Class.forName("java.awt.Window");

    54                         fieldIsAutoRequestFocus = windowClass.getDeclaredField("autoRequestFocus");

    55                         fieldIsAutoRequestFocus.setAccessible(true);

    56                         fieldIsTrayIconWindow = windowClass.getDeclaredField("isTrayIconWindow");

    57                         fieldIsTrayIconWindow.setAccessible(true);

    58 

    59                     } catch (NoSuchFieldException e) {

    60                         log.log(Level.FINE, "Unable to initialize WindowAccessor: ", e);

    61                     } catch (ClassNotFoundException e) {

    62                         log.log(Level.FINE, "Unable to initialize WindowAccessor: ", e);

    63                     }

    64                     return null;

    65                 }

    66             });

    67     }

    68 

    69     public static boolean isAutoRequestFocus(Window w) {

    70         try {

    71             return fieldIsAutoRequestFocus.getBoolean(w);

    72 

    73         } catch (IllegalAccessException e) {

    74             log.log(Level.FINE, "Unable to access the Window object", e);

    75         }

    76         return true;

    77     }

    78 

    79     public static boolean isTrayIconWindow(Window w) {

    80         try {

    81             return fieldIsTrayIconWindow.getBoolean(w);

    82 

    83         } catch (IllegalAccessException e) {

    84             log.log(Level.FINE, "Unable to access the Window object", e);

    85         }

    86         return false;

    87     }

    88 

    89     public static void setTrayIconWindow(Window w, boolean isTrayIconWindow) {

    90         try {

    91             fieldIsTrayIconWindow.set(w, isTrayIconWindow);

    92 

    93         } catch (IllegalAccessException e) {

    94             log.log(Level.FINE, "Unable to access the Window object", e);

    95         }

    96     }

    97 }