1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/* -*- 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/. */
#include "mozilla/dom/GeolocationPosition.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/dom/GeolocationCoordinates.h"
#include "mozilla/dom/GeolocationPositionBinding.h"
using mozilla::EqualOrBothNaN;
// NaN() is a more convenient function name.
inline double NaN() { return mozilla::UnspecifiedNaN<double>(); }
////////////////////////////////////////////////////
// nsGeoPositionCoords
////////////////////////////////////////////////////
nsGeoPositionCoords::nsGeoPositionCoords(double aLat, double aLong, double aAlt,
double aHError, double aVError,
double aHeading, double aSpeed)
: mLat(aLat),
mLong(aLong),
mAlt(aAlt),
mHError((aHError >= 0) ? aHError : 0)
// altitudeAccuracy without an altitude doesn't make any sense.
,
mVError((aVError >= 0 && !std::isnan(aAlt)) ? aVError : NaN())
// If the hosting device is stationary (i.e. the value of the speed
// attribute is 0), then the value of the heading attribute must be NaN
// (or null).
,
mHeading((aHeading >= 0 && aHeading < 360 && aSpeed > 0) ? aHeading
: NaN()),
mSpeed(aSpeed >= 0 ? aSpeed : NaN()) {
// Sanity check the location provider's results in debug builds. If the
// location provider is returning bogus results, we'd like to know, but
// we prefer to return some position data to JavaScript over a
// POSITION_UNAVAILABLE error.
MOZ_ASSERT(aLat >= -90 && aLat <= 90);
MOZ_ASSERT(aLong >= -180 && aLong <= 180);
MOZ_ASSERT(!(aLat == 0 && aLong == 0)); // valid but probably a bug
MOZ_ASSERT(EqualOrBothNaN(mAlt, aAlt));
MOZ_ASSERT(mHError == aHError);
MOZ_ASSERT(EqualOrBothNaN(mVError, aVError));
MOZ_ASSERT(EqualOrBothNaN(mHeading, aHeading));
MOZ_ASSERT(EqualOrBothNaN(mSpeed, aSpeed));
}
nsGeoPositionCoords::~nsGeoPositionCoords() = default;
NS_INTERFACE_MAP_BEGIN(nsGeoPositionCoords)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMGeoPositionCoords)
NS_INTERFACE_MAP_ENTRY(nsIDOMGeoPositionCoords)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsGeoPositionCoords)
NS_IMPL_RELEASE(nsGeoPositionCoords)
NS_IMETHODIMP
nsGeoPositionCoords::GetLatitude(double* aLatitude) {
*aLatitude = mLat;
return NS_OK;
}
NS_IMETHODIMP
nsGeoPositionCoords::GetLongitude(double* aLongitude) {
*aLongitude = mLong;
return NS_OK;
}
NS_IMETHODIMP
nsGeoPositionCoords::GetAltitude(double* aAltitude) {
*aAltitude = mAlt;
return NS_OK;
}
NS_IMETHODIMP
nsGeoPositionCoords::GetAccuracy(double* aAccuracy) {
*aAccuracy = mHError;
return NS_OK;
}
NS_IMETHODIMP
nsGeoPositionCoords::GetAltitudeAccuracy(double* aAltitudeAccuracy) {
*aAltitudeAccuracy = mVError;
return NS_OK;
}
NS_IMETHODIMP
nsGeoPositionCoords::GetHeading(double* aHeading) {
*aHeading = mHeading;
return NS_OK;
}
NS_IMETHODIMP
nsGeoPositionCoords::GetSpeed(double* aSpeed) {
*aSpeed = mSpeed;
return NS_OK;
}
////////////////////////////////////////////////////
// nsGeoPosition
////////////////////////////////////////////////////
nsGeoPosition::nsGeoPosition(double aLat, double aLong, double aAlt,
double aHError, double aVError, double aHeading,
double aSpeed, EpochTimeStamp aTimestamp)
: mTimestamp(aTimestamp) {
mCoords = new nsGeoPositionCoords(aLat, aLong, aAlt, aHError, aVError,
aHeading, aSpeed);
}
nsGeoPosition::nsGeoPosition(nsIDOMGeoPositionCoords* aCoords,
EpochTimeStamp aTimestamp)
: mTimestamp(aTimestamp), mCoords(aCoords) {}
nsGeoPosition::~nsGeoPosition() = default;
NS_INTERFACE_MAP_BEGIN(nsGeoPosition)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMGeoPosition)
NS_INTERFACE_MAP_ENTRY(nsIDOMGeoPosition)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsGeoPosition)
NS_IMPL_RELEASE(nsGeoPosition)
NS_IMETHODIMP
nsGeoPosition::GetTimestamp(EpochTimeStamp* aTimestamp) {
*aTimestamp = mTimestamp;
return NS_OK;
}
NS_IMETHODIMP
nsGeoPosition::GetCoords(nsIDOMGeoPositionCoords** aCoords) {
NS_IF_ADDREF(*aCoords = mCoords);
return NS_OK;
}
namespace mozilla::dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(GeolocationPosition, mParent,
mCoordinates)
NS_IMPL_CYCLE_COLLECTING_ADDREF(GeolocationPosition)
NS_IMPL_CYCLE_COLLECTING_RELEASE(GeolocationPosition)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(GeolocationPosition)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
GeolocationPosition::GeolocationPosition(nsISupports* aParent,
nsIDOMGeoPosition* aGeoPosition)
: mParent(aParent), mGeoPosition(aGeoPosition) {}
GeolocationPosition::~GeolocationPosition() = default;
nsISupports* GeolocationPosition::GetParentObject() const { return mParent; }
JSObject* GeolocationPosition::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return GeolocationPosition_Binding::Wrap(aCx, this, aGivenProto);
}
GeolocationCoordinates* GeolocationPosition::Coords() {
if (!mCoordinates) {
nsCOMPtr<nsIDOMGeoPositionCoords> coords;
mGeoPosition->GetCoords(getter_AddRefs(coords));
MOZ_ASSERT(coords, "coords should not be null");
mCoordinates = new GeolocationCoordinates(this, coords);
}
return mCoordinates;
}
uint64_t GeolocationPosition::Timestamp() const {
uint64_t rv;
mGeoPosition->GetTimestamp(&rv);
return rv;
}
} // namespace mozilla::dom
|
