1 /*
   2  * Copyright (c) 2011, 2017, 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 com.apple.eawt;
  27 
  28 import java.awt.desktop.QuitEvent;
  29 import java.awt.desktop.QuitHandler;
  30 import java.awt.desktop.QuitResponse;
  31 import java.awt.desktop.QuitStrategy;
  32 
  33 /**
  34  * Used to respond to a request to quit the application.
  35  * The QuitResponse may be used after the {@link QuitHandler#handleQuitRequestWith(QuitEvent, QuitResponse)} method has returned, and may be used from any thread.
  36  *
  37  * @see Application#setQuitHandler(QuitHandler)
  38  * @see QuitHandler
  39  * @see Application#setQuitStrategy(QuitStrategy)
  40  *
  41  * @since Java for Mac OS X 10.6 Update 3
  42  * @since Java for Mac OS X 10.5 Update 8
  43  */
  44 public class MacQuitResponse implements QuitResponse {
  45     final _AppEventHandler appEventHandler;
  46 
  47     MacQuitResponse(final _AppEventHandler appEventHandler) {
  48         this.appEventHandler = appEventHandler;
  49     }
  50 
  51     /**
  52      * Notifies the external quit requester that the quit will proceed, and performs the default {@link QuitStrategy}.
  53      */
  54     @Override
  55     public void performQuit() {
  56         if (appEventHandler.currentQuitResponse != this) return;
  57         appEventHandler.performQuit();
  58     }
  59 
  60     /**
  61      * Notifies the external quit requester that the user has explicitly canceled the pending quit, and leaves the application running.
  62      * <b>Note: this will cancel a pending log-out, restart, or shutdown.</b>
  63      */
  64     @Override
  65     public void cancelQuit() {
  66         if (appEventHandler.currentQuitResponse != this) return;
  67         appEventHandler.cancelQuit();
  68     }
  69 }