1 /*

     2  * Copyright (c) 2000, 2007, Oracle and/or its affiliates. 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.  Oracle designates this

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

     9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package java.awt;

    27 

    28 import sun.awt.AppContext;

    29 import sun.awt.SunToolkit;

    30 

    31 /**

    32  * A wrapping tag for a nested AWTEvent which indicates that the event was

    33  * sent from another AppContext. The destination AppContext should handle the

    34  * event even if it is currently blocked waiting for a SequencedEvent or

    35  * another SentEvent to be handled.

    36  *

    37  * @author David Mendenhall

    38  */

    39 class SentEvent extends AWTEvent implements ActiveEvent {

    40     /*

    41      * serialVersionUID

    42      */

    43     private static final long serialVersionUID = -383615247028828931L;

    44 

    45     static final int ID =

    46         java.awt.event.FocusEvent.FOCUS_LAST + 2;

    47 

    48     boolean dispatched;

    49     private AWTEvent nested;

    50     private AppContext toNotify;

    51 

    52     SentEvent() {

    53         this(null);

    54     }

    55     SentEvent(AWTEvent nested) {

    56         this(nested, null);

    57     }

    58     SentEvent(AWTEvent nested, AppContext toNotify) {

    59         super((nested != null)

    60                   ? nested.getSource()

    61                   : Toolkit.getDefaultToolkit(),

    62               ID);

    63         this.nested = nested;

    64         this.toNotify = toNotify;

    65     }

    66 

    67     public void dispatch() {

    68         try {

    69             if (nested != null) {

    70                 Toolkit.getEventQueue().dispatchEvent(nested);

    71             }

    72         } finally {

    73             dispatched = true;

    74             if (toNotify != null) {

    75                 SunToolkit.postEvent(toNotify, new SentEvent());

    76             }

    77             synchronized (this) {

    78                 notifyAll();

    79             }

    80         }

    81     }

    82     final void dispose() {

    83         dispatched = true;

    84         if (toNotify != null) {

    85             SunToolkit.postEvent(toNotify, new SentEvent());

    86         }

    87         synchronized (this) {

    88             notifyAll();

    89         }

    90     }

    91 }