1 | /* |
2 | * Copyright (C) 2008-2011, 2015 Apple Inc. All Rights Reserved. |
3 | * Copyright (C) 2009 Torch Mobile, Inc. |
4 | * Copyright 2010, The Android Open Source Project |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
9 | * 1. Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * 2. Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
14 | * |
15 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
16 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
18 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
19 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
22 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
23 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
25 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | */ |
27 | |
28 | #include "config.h" |
29 | #include "GeoNotifier.h" |
30 | |
31 | #if ENABLE(GEOLOCATION) |
32 | |
33 | #include "Geolocation.h" |
34 | |
35 | namespace WebCore { |
36 | |
37 | GeoNotifier::GeoNotifier(Geolocation& geolocation, Ref<PositionCallback>&& successCallback, RefPtr<PositionErrorCallback>&& errorCallback, PositionOptions&& options) |
38 | : m_geolocation(geolocation) |
39 | , m_successCallback(WTFMove(successCallback)) |
40 | , m_errorCallback(WTFMove(errorCallback)) |
41 | , m_options(WTFMove(options)) |
42 | , m_timer(*this, &GeoNotifier::timerFired) |
43 | , m_useCachedPosition(false) |
44 | { |
45 | } |
46 | |
47 | void GeoNotifier::setFatalError(RefPtr<PositionError>&& error) |
48 | { |
49 | // If a fatal error has already been set, stick with it. This makes sure that |
50 | // when permission is denied, this is the error reported, as required by the |
51 | // spec. |
52 | if (m_fatalError) |
53 | return; |
54 | |
55 | m_fatalError = WTFMove(error); |
56 | // An existing timer may not have a zero timeout. |
57 | m_timer.stop(); |
58 | m_timer.startOneShot(0_s); |
59 | } |
60 | |
61 | void GeoNotifier::setUseCachedPosition() |
62 | { |
63 | m_useCachedPosition = true; |
64 | m_timer.startOneShot(0_s); |
65 | } |
66 | |
67 | bool GeoNotifier::hasZeroTimeout() const |
68 | { |
69 | return !m_options.timeout; |
70 | } |
71 | |
72 | void GeoNotifier::runSuccessCallback(Geoposition* position) |
73 | { |
74 | // If we are here and the Geolocation permission is not approved, something has |
75 | // gone horribly wrong. |
76 | if (!m_geolocation->isAllowed()) |
77 | CRASH(); |
78 | |
79 | m_successCallback->handleEvent(position); |
80 | } |
81 | |
82 | void GeoNotifier::runErrorCallback(PositionError& error) |
83 | { |
84 | if (m_errorCallback) |
85 | m_errorCallback->handleEvent(error); |
86 | } |
87 | |
88 | void GeoNotifier::startTimerIfNeeded() |
89 | { |
90 | m_timer.startOneShot(1_ms * m_options.timeout); |
91 | } |
92 | |
93 | void GeoNotifier::stopTimer() |
94 | { |
95 | m_timer.stop(); |
96 | } |
97 | |
98 | void GeoNotifier::timerFired() |
99 | { |
100 | m_timer.stop(); |
101 | |
102 | // Protect this GeoNotifier object, since it |
103 | // could be deleted by a call to clearWatch in a callback. |
104 | Ref<GeoNotifier> protectedThis(*this); |
105 | |
106 | // Test for fatal error first. This is required for the case where the Frame is |
107 | // disconnected and requests are cancelled. |
108 | if (m_fatalError) { |
109 | runErrorCallback(*m_fatalError); |
110 | // This will cause this notifier to be deleted. |
111 | m_geolocation->fatalErrorOccurred(this); |
112 | return; |
113 | } |
114 | |
115 | if (m_useCachedPosition) { |
116 | // Clear the cached position flag in case this is a watch request, which |
117 | // will continue to run. |
118 | m_useCachedPosition = false; |
119 | m_geolocation->requestUsesCachedPosition(this); |
120 | return; |
121 | } |
122 | |
123 | if (m_errorCallback) { |
124 | auto error = PositionError::create(PositionError::TIMEOUT, "Timeout expired"_s ); |
125 | m_errorCallback->handleEvent(error); |
126 | } |
127 | m_geolocation->requestTimedOut(this); |
128 | } |
129 | |
130 | } // namespace WebCore |
131 | |
132 | #endif // ENABLE(GEOLOCATION) |
133 | |