michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef dom_src_geolocation_IPC_serialiser
michael@0: #define dom_src_geolocation_IPC_serialiser
michael@0: 
michael@0: #include "ipc/IPCMessageUtils.h"
michael@0: #include "nsGeoPosition.h"
michael@0: #include "nsIDOMGeoPosition.h"
michael@0: 
michael@0: typedef nsIDOMGeoPosition* GeoPosition;
michael@0: 
michael@0: namespace IPC {
michael@0: 
michael@0: template <>
michael@0: struct ParamTraits<nsIDOMGeoPositionCoords*>
michael@0: {
michael@0:   typedef nsIDOMGeoPositionCoords* paramType;
michael@0: 
michael@0:   // Function to serialize a geoposition
michael@0:   static void Write(Message *aMsg, const paramType& aParam)
michael@0:   {
michael@0:     bool isNull = !aParam;
michael@0:     WriteParam(aMsg, isNull);
michael@0:     // If it is a null object, then we are done
michael@0:     if (isNull) return;
michael@0: 
michael@0:     double coordData;
michael@0: 
michael@0:     aParam->GetLatitude(&coordData);
michael@0:     WriteParam(aMsg, coordData);
michael@0: 
michael@0:     aParam->GetLongitude(&coordData);
michael@0:     WriteParam(aMsg, coordData);
michael@0: 
michael@0:     aParam->GetAltitude(&coordData);
michael@0:     WriteParam(aMsg, coordData);
michael@0: 
michael@0:     aParam->GetAccuracy(&coordData);
michael@0:     WriteParam(aMsg, coordData);
michael@0: 
michael@0:     aParam->GetAltitudeAccuracy(&coordData);
michael@0:     WriteParam(aMsg, coordData);
michael@0: 
michael@0:     aParam->GetHeading(&coordData);
michael@0:     WriteParam(aMsg, coordData);
michael@0: 
michael@0:     aParam->GetSpeed(&coordData);
michael@0:     WriteParam(aMsg, coordData);
michael@0:   }
michael@0: 
michael@0:   // Function to de-serialize a geoposition
michael@0:   static bool Read(const Message* aMsg, void **aIter, paramType* aResult)
michael@0:   {
michael@0:     // Check if it is the null pointer we have transfered
michael@0:     bool isNull;
michael@0:     if (!ReadParam(aMsg, aIter, &isNull)) return false;
michael@0: 
michael@0:     if (isNull) {
michael@0:       *aResult = 0;
michael@0:       return true;
michael@0:     }
michael@0: 
michael@0:     double latitude;
michael@0:     double longitude;
michael@0:     double altitude;
michael@0:     double accuracy;
michael@0:     double altitudeAccuracy;
michael@0:     double heading;
michael@0:     double speed;
michael@0: 
michael@0:     // It's not important to us where it fails, but rather if it fails
michael@0:     if (!(   ReadParam(aMsg, aIter, &latitude         )
michael@0:           && ReadParam(aMsg, aIter, &longitude        )
michael@0:           && ReadParam(aMsg, aIter, &altitude         )
michael@0:           && ReadParam(aMsg, aIter, &accuracy         )
michael@0:           && ReadParam(aMsg, aIter, &altitudeAccuracy )
michael@0:           && ReadParam(aMsg, aIter, &heading          )
michael@0:           && ReadParam(aMsg, aIter, &speed            ))) return false;
michael@0: 
michael@0:     // We now have all the data
michael@0:     *aResult = new nsGeoPositionCoords(latitude,         /* aLat     */
michael@0:                                        longitude,        /* aLong    */
michael@0:                                        altitude,         /* aAlt     */
michael@0:                                        accuracy,         /* aHError  */
michael@0:                                        altitudeAccuracy, /* aVError  */
michael@0:                                        heading,          /* aHeading */
michael@0:                                        speed             /* aSpeed   */
michael@0:                                       );
michael@0:     return true;
michael@0: 
michael@0:   }
michael@0: 
michael@0: };
michael@0: 
michael@0: template <>
michael@0: struct ParamTraits<nsIDOMGeoPosition*>
michael@0: {
michael@0:   typedef nsIDOMGeoPosition* paramType;
michael@0: 
michael@0:   // Function to serialize a geoposition
michael@0:   static void Write(Message *aMsg, const paramType& aParam)
michael@0:   {
michael@0:     bool isNull = !aParam;
michael@0:     WriteParam(aMsg, isNull);
michael@0:     // If it is a null object, then we are done
michael@0:     if (isNull) return;
michael@0: 
michael@0:     DOMTimeStamp timeStamp;
michael@0:     aParam->GetTimestamp(&timeStamp);
michael@0:     WriteParam(aMsg, timeStamp);
michael@0: 
michael@0:     nsCOMPtr<nsIDOMGeoPositionCoords> coords;
michael@0:     aParam->GetCoords(getter_AddRefs(coords));
michael@0:     WriteParam(aMsg, coords.get());
michael@0:   }
michael@0: 
michael@0:   // Function to de-serialize a geoposition
michael@0:   static bool Read(const Message* aMsg, void **aIter, paramType* aResult)
michael@0:   {
michael@0:     // Check if it is the null pointer we have transfered
michael@0:     bool isNull;
michael@0:     if (!ReadParam(aMsg, aIter, &isNull)) return false;
michael@0: 
michael@0:     if (isNull) {
michael@0:       *aResult = 0;
michael@0:       return true;
michael@0:     }
michael@0: 
michael@0:     DOMTimeStamp timeStamp;
michael@0:     nsIDOMGeoPositionCoords* coords = nullptr;
michael@0: 
michael@0:     // It's not important to us where it fails, but rather if it fails
michael@0:     if (!ReadParam(aMsg, aIter, &timeStamp) ||
michael@0:         !ReadParam(aMsg, aIter, &coords)) {
michael@0:       nsCOMPtr<nsIDOMGeoPositionCoords> tmpcoords = coords;
michael@0:       return false;
michael@0:     }
michael@0: 
michael@0:     *aResult = new nsGeoPosition(coords, timeStamp);
michael@0: 
michael@0:     return true;
michael@0:   };
michael@0: 
michael@0: };
michael@0: 
michael@0: }
michael@0: 
michael@0: #endif