152 lines
4.2 KiB
C++
152 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef dom_src_geolocation_IPC_serialiser
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#define dom_src_geolocation_IPC_serialiser
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#include "ipc/IPCMessageUtils.h"
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#include "nsGeoPosition.h"
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#include "nsIDOMGeoPosition.h"
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typedef nsIDOMGeoPosition* GeoPosition;
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namespace IPC {
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template <>
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struct ParamTraits<nsIDOMGeoPositionCoords*>
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{
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typedef nsIDOMGeoPositionCoords* paramType;
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// Function to serialize a geoposition
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static void Write(Message *aMsg, const paramType& aParam)
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{
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bool isNull = !aParam;
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WriteParam(aMsg, isNull);
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// If it is a null object, then we are done
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if (isNull) return;
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double coordData;
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aParam->GetLatitude(&coordData);
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WriteParam(aMsg, coordData);
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aParam->GetLongitude(&coordData);
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WriteParam(aMsg, coordData);
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aParam->GetAltitude(&coordData);
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WriteParam(aMsg, coordData);
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aParam->GetAccuracy(&coordData);
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WriteParam(aMsg, coordData);
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aParam->GetAltitudeAccuracy(&coordData);
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WriteParam(aMsg, coordData);
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aParam->GetHeading(&coordData);
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WriteParam(aMsg, coordData);
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aParam->GetSpeed(&coordData);
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WriteParam(aMsg, coordData);
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}
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// Function to de-serialize a geoposition
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static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
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{
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// Check if it is the null pointer we have transfered
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bool isNull;
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if (!ReadParam(aMsg, aIter, &isNull)) return false;
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if (isNull) {
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*aResult = 0;
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return true;
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}
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double latitude;
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double longitude;
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double altitude;
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double accuracy;
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double altitudeAccuracy;
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double heading;
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double speed;
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// It's not important to us where it fails, but rather if it fails
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if (!( ReadParam(aMsg, aIter, &latitude )
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&& ReadParam(aMsg, aIter, &longitude )
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&& ReadParam(aMsg, aIter, &altitude )
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&& ReadParam(aMsg, aIter, &accuracy )
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&& ReadParam(aMsg, aIter, &altitudeAccuracy )
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&& ReadParam(aMsg, aIter, &heading )
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&& ReadParam(aMsg, aIter, &speed ))) return false;
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// We now have all the data
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*aResult = new nsGeoPositionCoords(latitude, /* aLat */
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longitude, /* aLong */
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altitude, /* aAlt */
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accuracy, /* aHError */
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altitudeAccuracy, /* aVError */
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heading, /* aHeading */
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speed /* aSpeed */
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);
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return true;
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}
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};
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template <>
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struct ParamTraits<nsIDOMGeoPosition*>
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{
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typedef nsIDOMGeoPosition* paramType;
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// Function to serialize a geoposition
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static void Write(Message *aMsg, const paramType& aParam)
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{
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bool isNull = !aParam;
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WriteParam(aMsg, isNull);
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// If it is a null object, then we are done
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if (isNull) return;
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DOMTimeStamp timeStamp;
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aParam->GetTimestamp(&timeStamp);
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WriteParam(aMsg, timeStamp);
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nsCOMPtr<nsIDOMGeoPositionCoords> coords;
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aParam->GetCoords(getter_AddRefs(coords));
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WriteParam(aMsg, coords.get());
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}
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// Function to de-serialize a geoposition
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static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
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{
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// Check if it is the null pointer we have transfered
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bool isNull;
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if (!ReadParam(aMsg, aIter, &isNull)) return false;
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if (isNull) {
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*aResult = 0;
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return true;
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}
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DOMTimeStamp timeStamp;
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nsIDOMGeoPositionCoords* coords = nullptr;
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// It's not important to us where it fails, but rather if it fails
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if (!ReadParam(aMsg, aIter, &timeStamp) ||
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!ReadParam(aMsg, aIter, &coords)) {
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nsCOMPtr<nsIDOMGeoPositionCoords> tmpcoords = coords;
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return false;
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}
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*aResult = new nsGeoPosition(coords, timeStamp);
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return true;
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};
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};
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} // namespace IPC
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#endif
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