/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org Code.
 *
 * The Initial Developer of the Original Code is
 * Aaron Leventhal.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * under the terms of either the GPL or the LGPL, and not to allow others to
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 * ***** END LICENSE BLOCK ***** */

/**
 * This file is the header of an implementation
 * nsAccessProxy of the nsIAccessProxy interface.
 */

#include "nsIAccessProxy.h"
#include "nsIDOMEventListener.h"
#include "nsIWebProgressListener.h"
#include "nsWeakReference.h"
#include "nsIObserver.h"
#include "nsIAppStartupNotifier.h"


/**
 * AccessProxy is an implementation of the nsIAccessProxy interface.  In XPCOM,
 * there can be more than one implementation of an given interface.  Class
 * IDs (CIDs) uniquely identify a particular implementation of an interface.
 * Interface IDs (IIDs) uniquely identify an interface.
 *
 * The CID is also a unique number that looks just like an IID
 * and uniquely identifies an implementation
 * {7CB5B7A0-07D7-11d3-BDE2-000064657374}
 */


class nsAccessProxy : public nsIDOMEventListener,
                      public nsIObserver,
                      public nsIWebProgressListener,
                      public nsSupportsWeakReference
{
public:
  nsAccessProxy();
  virtual ~nsAccessProxy();

  NS_DEFINE_STATIC_CID_ACCESSOR(NS_ACCESSPROXY_CID);

  NS_DECL_ISUPPORTS  // This macro expands into declaration of nsISupports interface
  NS_DECL_NSIOBSERVER
  NS_DECL_NSIWEBPROGRESSLISTENER

  //NS_DECL_NSIACCESSPROXY
  NS_IMETHOD HandleEvent(nsIDOMEvent *event);  

  static nsAccessProxy *GetInstance();
  static void ReleaseInstance(void);

private:
  static nsAccessProxy *mInstance;
};