/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef dom_src_geolocation_IPC_serialiser

#define dom_src_geolocation_IPC_serialiser

#include "ipc/IPCMessageUtils.h"

#include "nsGeoPosition.h"

#include "nsIDOMGeoPosition.h"

namespace IPC {

template <>

struct ParamTraits<nsIDOMGeoPositionCoords>

{

  // Function to serialize a geoposition

  static void Write(Message *aMsg, nsIDOMGeoPositionCoords* aParam)

  {

    bool isNull = !aParam;

    WriteParam(aMsg, isNull);

    // If it is a null object, then we are done

    if (isNull) return;

    double coordData;

    aParam->GetLatitude(&coordData);

    WriteParam(aMsg, coordData);

    aParam->GetLongitude(&coordData);

    WriteParam(aMsg, coordData);

    aParam->GetAltitude(&coordData);

    WriteParam(aMsg, coordData);

    aParam->GetAccuracy(&coordData);

    WriteParam(aMsg, coordData);

    aParam->GetAltitudeAccuracy(&coordData);

    WriteParam(aMsg, coordData);

    aParam->GetHeading(&coordData);

    WriteParam(aMsg, coordData);

    aParam->GetSpeed(&coordData);

    WriteParam(aMsg, coordData);

  }

  // Function to de-serialize a geoposition

  static bool Read(const Message* aMsg, PickleIterator* aIter,

                   RefPtr<nsIDOMGeoPositionCoords>* aResult)

  {

    // Check if it is the null pointer we have transfered

    bool isNull;

    if (!ReadParam(aMsg, aIter, &isNull)) return false;

    if (isNull) {

      *aResult = nullptr;

      return true;

    }

    double latitude;

    double longitude;

    double altitude;

    double accuracy;

    double altitudeAccuracy;

    double heading;

    double speed;

    // It's not important to us where it fails, but rather if it fails

    if (!(   ReadParam(aMsg, aIter, &latitude         )

          && ReadParam(aMsg, aIter, &longitude        )

          && ReadParam(aMsg, aIter, &altitude         )

          && ReadParam(aMsg, aIter, &accuracy         )

          && ReadParam(aMsg, aIter, &altitudeAccuracy )

          && ReadParam(aMsg, aIter, &heading          )

          && ReadParam(aMsg, aIter, &speed            ))) return false;

    // We now have all the data

    *aResult = new nsGeoPositionCoords(latitude,         /* aLat     */

                                       longitude,        /* aLong    */

                                       altitude,         /* aAlt     */

                                       accuracy,         /* aHError  */

                                       altitudeAccuracy, /* aVError  */

                                       heading,          /* aHeading */

                                       speed             /* aSpeed   */

                                      );

    return true;

  }

};

template <>

struct ParamTraits<nsIDOMGeoPosition>

{

  // Function to serialize a geoposition

  static void Write(Message *aMsg, nsIDOMGeoPosition* aParam)

  {

    bool isNull = !aParam;

    WriteParam(aMsg, isNull);

    // If it is a null object, then we are done

    if (isNull) return;

    DOMTimeStamp timeStamp;

    aParam->GetTimestamp(&timeStamp);

    WriteParam(aMsg, timeStamp);

    nsCOMPtr<nsIDOMGeoPositionCoords> coords;

    aParam->GetCoords(getter_AddRefs(coords));

    WriteParam(aMsg, coords);

  }

  // Function to de-serialize a geoposition

  static bool Read(const Message* aMsg, PickleIterator* aIter,

                   RefPtr<nsIDOMGeoPosition>* aResult)

  {

    // Check if it is the null pointer we have transfered

    bool isNull;

    if (!ReadParam(aMsg, aIter, &isNull)) return false;

    if (isNull) {

      *aResult = nullptr;

      return true;

    }

    DOMTimeStamp timeStamp;

    RefPtr<nsIDOMGeoPositionCoords> coords;

    // It's not important to us where it fails, but rather if it fails

    if (!ReadParam(aMsg, aIter, &timeStamp) ||

        !ReadParam(aMsg, aIter, &coords)) {

      return false;

    }

    *aResult = new nsGeoPosition(coords, timeStamp);

    return true;

  };

};

} // namespace IPC

#endif