/*

 * Copyright (c) 2000, 2007, 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

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

 * questions.

 */

package java.awt;

import sun.awt.AppContext;

import sun.awt.SunToolkit;

/**

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

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

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

 * another SentEvent to be handled.

 *

 * @author David Mendenhall

 */

class SentEvent extends AWTEvent implements ActiveEvent {

    /*

     * serialVersionUID

     */

    private static final long serialVersionUID = -383615247028828931L;

    static final int ID =

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

    boolean dispatched;

    private AWTEvent nested;

    private AppContext toNotify;

    SentEvent() {

        this(null);

    }

    SentEvent(AWTEvent nested) {

        this(nested, null);

    }

    SentEvent(AWTEvent nested, AppContext toNotify) {

        super((nested != null)

                  ? nested.getSource()

                  : Toolkit.getDefaultToolkit(),

              ID);

        this.nested = nested;

        this.toNotify = toNotify;

    }

    public void dispatch() {

        try {

            if (nested != null) {

                Toolkit.getEventQueue().dispatchEvent(nested);

            }

        } finally {

            dispatched = true;

            if (toNotify != null) {

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

            }

            synchronized (this) {

                notifyAll();

            }

        }

    }

    final void dispose() {

        dispatched = true;

        if (toNotify != null) {

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

        }

        synchronized (this) {

            notifyAll();

        }

    }

}