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Diffstat (limited to 'dom/geolocation/nsGeoPositionIPCSerialiser.h')
-rw-r--r-- | dom/geolocation/nsGeoPositionIPCSerialiser.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/dom/geolocation/nsGeoPositionIPCSerialiser.h b/dom/geolocation/nsGeoPositionIPCSerialiser.h new file mode 100644 index 0000000000..fb9bb123f9 --- /dev/null +++ b/dom/geolocation/nsGeoPositionIPCSerialiser.h @@ -0,0 +1,138 @@ +/* -*- 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 "mozilla/dom/GeolocationPosition.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 |