/* ***** 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 Geolocation.
 *
 * The Initial Developer of the Original Code is Mozilla Foundation
 * Portions created by the Initial Developer are Copyright (C) 2008
 * the Initial Developer. All Rights Reserved.
 *
 * This is a derivative of work done by Google under a BSD style License.
 * See: http://gears.googlecode.com/svn/trunk/gears/geolocation/
 *
 * Contributor(s):
 *  Doug Turner <dougt@meer.net>  (Original Author)
 *
 * 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
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsIWifiMonitor.h"
#include "nsCOMPtr.h"
#include "nsAutoPtr.h"
#include "nsIThread.h"
#include "nsIRunnable.h"
#include "nsCOMArray.h"
#include "nsIWifiMonitor.h"
#include "mozilla/ReentrantMonitor.h"
#include "prlog.h"
#include "nsIObserver.h"
#include "nsTArray.h"

#ifndef __nsWifiMonitor__
#define __nsWifiMonitor__

#if defined(PR_LOGGING)
extern PRLogModuleInfo *gWifiMonitorLog;
#endif
#define LOG(args)     PR_LOG(gWifiMonitorLog, PR_LOG_DEBUG, args)

class nsWifiAccessPoint;

class nsWifiListener
{
 public:

  nsWifiListener(nsIWifiListener* aListener)
  {
    mListener = aListener;
    mHasSentData = PR_FALSE;
  }
  ~nsWifiListener() {}

  nsCOMPtr<nsIWifiListener> mListener;
  PRBool mHasSentData;
};

class nsWifiMonitor : nsIRunnable, nsIWifiMonitor, nsIObserver
{
 public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIWIFIMONITOR
  NS_DECL_NSIRUNNABLE
  NS_DECL_NSIOBSERVER

  nsWifiMonitor();

 private:
  ~nsWifiMonitor();

  nsresult DoScan();

#if defined(XP_MACOSX)
  nsresult DoScanWithCoreWLAN();
  nsresult DoScanOld();
#endif

  nsresult CallWifiListeners(const nsCOMArray<nsWifiAccessPoint> &aAccessPoints,
                             PRBool aAccessPointsChanged);

  PRBool mKeepGoing;
  nsCOMPtr<nsIThread> mThread;

  nsTArray<nsWifiListener> mListeners;

  mozilla::ReentrantMonitor mReentrantMonitor;

};

#endif
