dom/system/windows/WinMobileLocationProvider.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is Geolocation.
  16  *
  17  * The Initial Developer of the Original Code is Mozilla Foundation
  18  * Portions created by the Initial Developer are Copyright (C) 2009
  19  * the Initial Developer. All Rights Reserved.
  20  *
  21  * Contributor(s):
  22  *  Doug Turner <dougt@meer.net>  (Original Author)
  23  *  Nino D'Aversa <ninodaversa@gmail.com>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
  29  * of those above. If you wish to allow use of your version of this file only
  30  * under the terms of either the GPL or the LGPL, and not to allow others to
  31  * use your version of this file under the terms of the MPL, indicate your
  32  * decision by deleting the provisions above and replace them with the notice
  33  * and other provisions required by the GPL or the LGPL. If you do not delete
  34  * the provisions above, a recipient may use your version of this file under
  35  * the terms of any one of the MPL, the GPL or the LGPL.
  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include <windows.h>
  40
  41 #undef GetMessage //prevent collision with nsDOMGeoPositionError::GetMessage(nsAString & aMessage)
  42
  43 #include <gpsapi.h>
  44 #include "nsIGeolocationProvider.h"
  45 #include "nsCOMPtr.h"
  46 #include "nsITimer.h"
  47
  48 typedef HANDLE (*OpenDeviceProc)(HANDLE hNewLocationData, HANDLE hDeviceStateChange, const WCHAR *szDeviceName, DWORD dwFlags);
  49 typedef DWORD  (*CloseDeviceProc)(HANDLE hGPSDevice);
  50 typedef DWORD  (*GetPositionProc)(HANDLE hGPSDevice, GPS_POSITION *pGPSPosition, DWORD dwMaximumAge, DWORD dwFlags);
  51 typedef DWORD  (*GetDeviceStateProc)(GPS_DEVICE *pGPSDevice);
  52
  53 class WinMobileLocationProvider : public nsIGeolocationProvider,
  54                                   public nsITimerCallback
  55
  56 {
  57  public:
  58   NS_DECL_ISUPPORTS
  59   NS_DECL_NSIGEOLOCATIONPROVIDER
  60   NS_DECL_NSITIMERCALLBACK
  61
  62   WinMobileLocationProvider();
  63
  64   void Update(nsIDOMGeoPosition* aPosition);
  65
  66  private:
  67   ~WinMobileLocationProvider();
  68
  69   nsCOMPtr<nsIGeolocationUpdate> mCallback;
  70   PRPackedBool mHasSeenLocation;
  71   PRPackedBool mHasGPS;
  72
  73   nsCOMPtr<nsITimer> mUpdateTimer;
  74
  75   HINSTANCE mGPSInst;
  76   HANDLE mGPSDevice;
  77   OpenDeviceProc mOpenDevice;
  78   CloseDeviceProc mCloseDevice;
  79   GetPositionProc mGetPosition;
  80   GetDeviceStateProc mGetDeviceState;
  81 };