/*
* Copyright (c) 1999, 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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
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*/
package sun.awt;
import java.awt.event.WindowEvent;
/**
* Interface for listening to WINDOW_CLOSING events before and
* after they are posted to the queue.
*/
public interface WindowClosingListener {
/**
* Called before a WINDOW_CLOSING event gets posted to the queue.
* @param event The WINDOW_CLOSING event that will be posted.
* @return A RuntimeException if the result of this function
* call needs to interrupt a blocking thread. The exception
* returned will be thrown from that thread. This function
* should return null otherwise.
*/
RuntimeException windowClosingNotify(WindowEvent event);
/**
* Called after a WINDOW_CLOSING event gets posted to the queue.
* @param event The WINDOW_CLOSING event that has been posted.
* @return A RuntimeException if the result of this function
* call needs to interrupt a blocking thread. The exception
* returned will be thrown from that thread. This function
* should return null otherwise.
*/
RuntimeException windowClosingDelivered(WindowEvent event);
}