dom/system/mac/CoreLocationLocationProvider.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "nsCOMPtr.h"
   8 #include "nsIGeolocationProvider.h"
   9 #include "mozilla/Attributes.h"
  10
  11 /*
  12  * The CoreLocationObjects class contains the CoreLocation objects
  13  * we'll need.
  14  *
  15  * Declaring them directly in CoreLocationLocationProvider
  16  * would require Objective-C++ syntax, which would contaminate all
  17  * files that include this header and require them to be Objective-C++
  18  * as well.
  19  *
  20  * The solution then is to forward-declare CoreLocationObjects here and
  21  * hold a pointer to it in CoreLocationLocationProvider, and only actually
  22  * define it in CoreLocationLocationProvider.mm, thus making it safe
  23  * for Geolocation.cpp, which is C++-only, to include this header.
  24  */
  25 class CoreLocationObjects;
  26 class MLSFallback;
  27
  28 class CoreLocationLocationProvider : public nsIGeolocationProvider {
  29  public:
  30   NS_DECL_ISUPPORTS
  31   NS_DECL_NSIGEOLOCATIONPROVIDER
  32
  33   CoreLocationLocationProvider();
  34   // MOZ_CAN_RUN_SCRIPT_BOUNDARY because we can't mark Objective-C methods as
  35   // MOZ_CAN_RUN_SCRIPT as far as I can tell, and this method is called from
  36   // Objective-C.
  37   MOZ_CAN_RUN_SCRIPT_BOUNDARY
  38   void NotifyError(uint16_t aErrorCode);
  39   void Update(nsIDOMGeoPosition* aSomewhere);
  40   void CreateMLSFallbackProvider();
  41   void CancelMLSFallbackProvider();
  42
  43  private:
  44   virtual ~CoreLocationLocationProvider() = default;
  45
  46   CoreLocationObjects* mCLObjects;
  47   nsCOMPtr<nsIGeolocationUpdate> mCallback;
  48   RefPtr<MLSFallback> mMLSFallbackProvider;
  49
  50   class MLSUpdate : public nsIGeolocationUpdate {
  51    public:
  52     NS_DECL_ISUPPORTS
  53     NS_DECL_NSIGEOLOCATIONUPDATE
  54
  55     explicit MLSUpdate(CoreLocationLocationProvider& parentProvider);
  56
  57    private:
  58     CoreLocationLocationProvider& mParentLocationProvider;
  59     virtual ~MLSUpdate() = default;
  60   };
  61 };