01: /*
02: * Copyright 1999 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * 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.event.WindowEvent;
29:
30: /**
31: * Interface for listening to WINDOW_CLOSING events before and
32: * after they are posted to the queue.
33: */
34: public interface WindowClosingListener {
35: /**
36: * Called before a WINDOW_CLOSING event gets posted to the queue.
37: * @param event The WINDOW_CLOSING event that will be posted.
38: * @return A RuntimeException if the result of this function
39: * call needs to interrupt a blocking thread. The exception
40: * returned will be thrown from that thread. This function
41: * should return null otherwise.
42: */
43: RuntimeException windowClosingNotify(WindowEvent event);
44:
45: /**
46: * Called after a WINDOW_CLOSING event gets posted to the queue.
47: * @param event The WINDOW_CLOSING event that has been posted.
48: * @return A RuntimeException if the result of this function
49: * call needs to interrupt a blocking thread. The exception
50: * returned will be thrown from that thread. This function
51: * should return null otherwise.
52: */
53: RuntimeException windowClosingDelivered(WindowEvent event);
54: }
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