/*
 * Copyright (c) 2016, 2018, 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 java.awt.desktop;

import java.awt.Desktop;
import java.awt.GraphicsEnvironment;
import java.awt.HeadlessException;

/**
 * Event sent when the displays attached to the system enter and exit power save
 * sleep.
 *
 * @see ScreenSleepListener#screenAboutToSleep(ScreenSleepEvent)
 * @see ScreenSleepListener#screenAwoke(ScreenSleepEvent)
 *
 * @since 9
 */
public final class ScreenSleepEvent extends AppEvent {

    private static final long serialVersionUID = 7521606180376544150L;

    /**
     * Constructs a {@code ScreenSleepEvent}.
     *
     * @throws HeadlessException if {@link GraphicsEnvironment#isHeadless()}
     *         returns {@code true}
     * @throws UnsupportedOperationException if Desktop API is not supported on
     *         the current platform
     * @see Desktop#isDesktopSupported()
     * @see java.awt.GraphicsEnvironment#isHeadless
     */
    public ScreenSleepEvent() {
    }
}