1 | /* |
2 | * Copyright (C) 2009-2017 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 | * THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include <cmath> |
29 | #include <wtf/Optional.h> |
30 | #include <wtf/Ref.h> |
31 | #include <wtf/RefCounted.h> |
32 | |
33 | #if PLATFORM(IOS_FAMILY) |
34 | OBJC_CLASS CLLocation; |
35 | #endif |
36 | |
37 | namespace WebCore { |
38 | |
39 | class GeolocationPosition { |
40 | public: |
41 | GeolocationPosition() = default; |
42 | |
43 | GeolocationPosition(double timestamp, double latitude, double longitude, double accuracy) |
44 | : timestamp(timestamp) |
45 | , latitude(latitude) |
46 | , longitude(longitude) |
47 | , accuracy(accuracy) |
48 | { |
49 | } |
50 | |
51 | #if PLATFORM(IOS_FAMILY) |
52 | WEBCORE_EXPORT explicit GeolocationPosition(CLLocation*); |
53 | #endif |
54 | |
55 | double timestamp { std::numeric_limits<double>::quiet_NaN() }; |
56 | |
57 | double latitude { std::numeric_limits<double>::quiet_NaN() }; |
58 | double longitude { std::numeric_limits<double>::quiet_NaN() }; |
59 | double accuracy { std::numeric_limits<double>::quiet_NaN() }; |
60 | |
61 | Optional<double> altitude; |
62 | Optional<double> altitudeAccuracy; |
63 | Optional<double> heading; |
64 | Optional<double> speed; |
65 | Optional<double> floorLevel; |
66 | |
67 | bool isValid() const; |
68 | |
69 | template<class Encoder> void encode(Encoder&) const; |
70 | template<class Decoder> static bool decode(Decoder&, GeolocationPosition&); |
71 | }; |
72 | |
73 | template<class Encoder> |
74 | void GeolocationPosition::encode(Encoder& encoder) const |
75 | { |
76 | encoder << timestamp; |
77 | encoder << latitude; |
78 | encoder << longitude; |
79 | encoder << accuracy; |
80 | encoder << altitude; |
81 | encoder << altitudeAccuracy; |
82 | encoder << heading; |
83 | encoder << speed; |
84 | encoder << floorLevel; |
85 | } |
86 | |
87 | template<class Decoder> |
88 | bool GeolocationPosition::decode(Decoder& decoder, GeolocationPosition& position) |
89 | { |
90 | if (!decoder.decode(position.timestamp)) |
91 | return false; |
92 | if (!decoder.decode(position.latitude)) |
93 | return false; |
94 | if (!decoder.decode(position.longitude)) |
95 | return false; |
96 | if (!decoder.decode(position.accuracy)) |
97 | return false; |
98 | if (!decoder.decode(position.altitude)) |
99 | return false; |
100 | if (!decoder.decode(position.altitudeAccuracy)) |
101 | return false; |
102 | if (!decoder.decode(position.heading)) |
103 | return false; |
104 | if (!decoder.decode(position.speed)) |
105 | return false; |
106 | if (!decoder.decode(position.floorLevel)) |
107 | return false; |
108 | |
109 | return true; |
110 | } |
111 | |
112 | inline bool GeolocationPosition::isValid() const |
113 | { |
114 | return !std::isnan(timestamp) && !std::isnan(latitude) && !std::isnan(longitude) && !std::isnan(accuracy); |
115 | } |
116 | |
117 | } // namespace WebCore |
118 | |