text: /*
   * tbx RISC OS toolbox library
   *
   * Copyright (C) 2010 Alan Buckley   All Rights Reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included
   * in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  /*
   * quitlistener.h
   *
   *  Created on: 09-Jun-2009
   *      Author: alanb
   */
  
  #ifndef TBX_QUITLISTENER_H_
  #define TBX_QUITLISTENER_H_
  
  #include "wimpmessagelistener.h"
  
  namespace tbx {
  
  class Application;
  /**
   * Class to simplify handling of Quit WIMP message.
   *
   * Normally used internally by Application::add_quit_listener
   */
  class QuitListener : public Listener
  {
  private:
  	class MessageQuitListener : public WimpRecordedMessageListener
  	{
  		QuitListener *_quit_listener;
  	public:
  		MessageQuitListener(QuitListener *ql) : _quit_listener(ql) {};
  		virtual ~MessageQuitListener() {};
  		// Just forward all messages to the QuitListener quit
  		virtual void recorded_message(WimpMessageEvent &event) {_quit_listener->quit();}
  
  	} _message_listener;
  	friend class tbx::Application;
  public:
  	QuitListener() : _message_listener(this) {};
  	virtual ~QuitListener() {};
  
  	/**
  	 * Called when the application has be told to quit by the desktop.
  	 */
  	virtual void quit() = 0;
  };
  
  }
  
  #endif /* TBX_QUITLISTENER_H_ */
  