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dom/src/geolocation/nsGeoPositionIPCSerialiser.h@b8a032363ba2 (annotated)

dom/src/geolocation/nsGeoPositionIPCSerialiser.h

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	2	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	3	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	4
michael@0	5	#ifndef dom_src_geolocation_IPC_serialiser
michael@0	6	#define dom_src_geolocation_IPC_serialiser
michael@0	7
michael@0	8	#include "ipc/IPCMessageUtils.h"
michael@0	9	#include "nsGeoPosition.h"
michael@0	10	#include "nsIDOMGeoPosition.h"
michael@0	11
michael@0	12	typedef nsIDOMGeoPosition* GeoPosition;
michael@0	13
michael@0	14	namespace IPC {
michael@0	15
michael@0	16	template <>
michael@0	17	struct ParamTraits<nsIDOMGeoPositionCoords*>
michael@0	18	{
michael@0	19	typedef nsIDOMGeoPositionCoords* paramType;
michael@0	20
michael@0	21	// Function to serialize a geoposition
michael@0	22	static void Write(Message *aMsg, const paramType& aParam)
michael@0	23	{
michael@0	24	bool isNull = !aParam;
michael@0	25	WriteParam(aMsg, isNull);
michael@0	26	// If it is a null object, then we are done
michael@0	27	if (isNull) return;
michael@0	28
michael@0	29	double coordData;
michael@0	30
michael@0	31	aParam->GetLatitude(&coordData);
michael@0	32	WriteParam(aMsg, coordData);
michael@0	33
michael@0	34	aParam->GetLongitude(&coordData);
michael@0	35	WriteParam(aMsg, coordData);
michael@0	36
michael@0	37	aParam->GetAltitude(&coordData);
michael@0	38	WriteParam(aMsg, coordData);
michael@0	39
michael@0	40	aParam->GetAccuracy(&coordData);
michael@0	41	WriteParam(aMsg, coordData);
michael@0	42
michael@0	43	aParam->GetAltitudeAccuracy(&coordData);
michael@0	44	WriteParam(aMsg, coordData);
michael@0	45
michael@0	46	aParam->GetHeading(&coordData);
michael@0	47	WriteParam(aMsg, coordData);
michael@0	48
michael@0	49	aParam->GetSpeed(&coordData);
michael@0	50	WriteParam(aMsg, coordData);
michael@0	51	}
michael@0	52
michael@0	53	// Function to de-serialize a geoposition
michael@0	54	static bool Read(const Message* aMsg, void **aIter, paramType* aResult)
michael@0	55	{
michael@0	56	// Check if it is the null pointer we have transfered
michael@0	57	bool isNull;
michael@0	58	if (!ReadParam(aMsg, aIter, &isNull)) return false;
michael@0	59
michael@0	60	if (isNull) {
michael@0	61	*aResult = 0;
michael@0	62	return true;
michael@0	63	}
michael@0	64
michael@0	65	double latitude;
michael@0	66	double longitude;
michael@0	67	double altitude;
michael@0	68	double accuracy;
michael@0	69	double altitudeAccuracy;
michael@0	70	double heading;
michael@0	71	double speed;
michael@0	72
michael@0	73	// It's not important to us where it fails, but rather if it fails
michael@0	74	if (!( ReadParam(aMsg, aIter, &latitude )
michael@0	75	&& ReadParam(aMsg, aIter, &longitude )
michael@0	76	&& ReadParam(aMsg, aIter, &altitude )
michael@0	77	&& ReadParam(aMsg, aIter, &accuracy )
michael@0	78	&& ReadParam(aMsg, aIter, &altitudeAccuracy )
michael@0	79	&& ReadParam(aMsg, aIter, &heading )
michael@0	80	&& ReadParam(aMsg, aIter, &speed ))) return false;
michael@0	81
michael@0	82	// We now have all the data
michael@0	83	*aResult = new nsGeoPositionCoords(latitude, /* aLat */
michael@0	84	longitude, /* aLong */
michael@0	85	altitude, /* aAlt */
michael@0	86	accuracy, /* aHError */
michael@0	87	altitudeAccuracy, /* aVError */
michael@0	88	heading, /* aHeading */
michael@0	89	speed /* aSpeed */
michael@0	90	);
michael@0	91	return true;
michael@0	92
michael@0	93	}
michael@0	94
michael@0	95	};
michael@0	96
michael@0	97	template <>
michael@0	98	struct ParamTraits<nsIDOMGeoPosition*>
michael@0	99	{
michael@0	100	typedef nsIDOMGeoPosition* paramType;
michael@0	101
michael@0	102	// Function to serialize a geoposition
michael@0	103	static void Write(Message *aMsg, const paramType& aParam)
michael@0	104	{
michael@0	105	bool isNull = !aParam;
michael@0	106	WriteParam(aMsg, isNull);
michael@0	107	// If it is a null object, then we are done
michael@0	108	if (isNull) return;
michael@0	109
michael@0	110	DOMTimeStamp timeStamp;
michael@0	111	aParam->GetTimestamp(&timeStamp);
michael@0	112	WriteParam(aMsg, timeStamp);
michael@0	113
michael@0	114	nsCOMPtr<nsIDOMGeoPositionCoords> coords;
michael@0	115	aParam->GetCoords(getter_AddRefs(coords));
michael@0	116	WriteParam(aMsg, coords.get());
michael@0	117	}
michael@0	118
michael@0	119	// Function to de-serialize a geoposition
michael@0	120	static bool Read(const Message* aMsg, void **aIter, paramType* aResult)
michael@0	121	{
michael@0	122	// Check if it is the null pointer we have transfered
michael@0	123	bool isNull;
michael@0	124	if (!ReadParam(aMsg, aIter, &isNull)) return false;
michael@0	125
michael@0	126	if (isNull) {
michael@0	127	*aResult = 0;
michael@0	128	return true;
michael@0	129	}
michael@0	130
michael@0	131	DOMTimeStamp timeStamp;
michael@0	132	nsIDOMGeoPositionCoords* coords = nullptr;
michael@0	133
michael@0	134	// It's not important to us where it fails, but rather if it fails
michael@0	135	if (!ReadParam(aMsg, aIter, &timeStamp) ||
michael@0	136	!ReadParam(aMsg, aIter, &coords)) {
michael@0	137	nsCOMPtr<nsIDOMGeoPositionCoords> tmpcoords = coords;
michael@0	138	return false;
michael@0	139	}
michael@0	140
michael@0	141	*aResult = new nsGeoPosition(coords, timeStamp);
michael@0	142
michael@0	143	return true;
michael@0	144	};
michael@0	145
michael@0	146	};
michael@0	147
michael@0	148	}
michael@0	149
michael@0	150	#endif