/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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 Corporation
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *  Doug Turner <dougt@meer.net>  (Original Author)
 *  Nino D'Aversa <ninodaversa@gmail.com>
 *
 * 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 <windows.h>

#undef GetMessage //prevent collision with nsDOMGeoPositionError::GetMessage(nsAString & aMessage)

#include <gpsapi.h>
#include "nsIGeolocationProvider.h"
#include "nsCOMPtr.h"
#include "nsITimer.h"

typedef HANDLE (*OpenDeviceProc)(HANDLE hNewLocationData, HANDLE hDeviceStateChange, const WCHAR *szDeviceName, DWORD dwFlags);
typedef DWORD  (*CloseDeviceProc)(HANDLE hGPSDevice);
typedef DWORD  (*GetPositionProc)(HANDLE hGPSDevice, GPS_POSITION *pGPSPosition, DWORD dwMaximumAge, DWORD dwFlags);
typedef DWORD  (*GetDeviceStateProc)(GPS_DEVICE *pGPSDevice);

class WinMobileLocationProvider : public nsIGeolocationProvider,
                                  public nsITimerCallback

{
 public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIGEOLOCATIONPROVIDER
  NS_DECL_NSITIMERCALLBACK
  
  WinMobileLocationProvider();

  void Update(nsIDOMGeoPosition* aPosition);
  
 private:
  ~WinMobileLocationProvider();
  
  nsCOMPtr<nsIGeolocationUpdate> mCallback;
  PRBool mHasSeenLocation;
  
  nsCOMPtr<nsITimer> mUpdateTimer;
  
  HINSTANCE mGPSInst;
  HANDLE mGPSDevice;
  OpenDeviceProc mOpenDevice;
  CloseDeviceProc mCloseDevice;
  GetPositionProc mGetPosition;
  GetDeviceStateProc mGetDeviceState;
};