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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "config.h" |
| 6 #include "modules/geolocation/GeoNotifier.h" |
| 7 |
| 8 #include "modules/geolocation/Geolocation.h" |
| 9 #include "modules/geolocation/PositionCallback.h" |
| 10 #include "modules/geolocation/PositionError.h" |
| 11 #include "modules/geolocation/PositionErrorCallback.h" |
| 12 #include "modules/geolocation/PositionOptions.h" |
| 13 |
| 14 namespace WebCore { |
| 15 |
| 16 GeoNotifier::GeoNotifier(Geolocation* geolocation, PassOwnPtr<PositionCallback>
successCallback, PassOwnPtr<PositionErrorCallback> errorCallback, PositionOption
s* options) |
| 17 // FIXME : m_geolocation should be removed, it makes circular dependancy. |
| 18 : m_geolocation(geolocation) |
| 19 , m_successCallback(successCallback) |
| 20 , m_errorCallback(errorCallback) |
| 21 , m_options(options) |
| 22 , m_timer(this, &GeoNotifier::timerFired) |
| 23 , m_useCachedPosition(false) |
| 24 { |
| 25 ASSERT(m_geolocation); |
| 26 ASSERT(m_successCallback); |
| 27 ASSERT(m_options); |
| 28 } |
| 29 |
| 30 void GeoNotifier::trace(Visitor* visitor) |
| 31 { |
| 32 visitor->trace(m_geolocation); |
| 33 visitor->trace(m_options); |
| 34 visitor->trace(m_fatalError); |
| 35 } |
| 36 |
| 37 void GeoNotifier::setFatalError(PositionError* error) |
| 38 { |
| 39 // If a fatal error has already been set, stick with it. This makes sure tha
t |
| 40 // when permission is denied, this is the error reported, as required by the |
| 41 // spec. |
| 42 if (m_fatalError) |
| 43 return; |
| 44 |
| 45 m_fatalError = error; |
| 46 // An existing timer may not have a zero timeout. |
| 47 m_timer.stop(); |
| 48 m_timer.startOneShot(0, FROM_HERE); |
| 49 } |
| 50 |
| 51 void GeoNotifier::setUseCachedPosition() |
| 52 { |
| 53 m_useCachedPosition = true; |
| 54 m_timer.startOneShot(0, FROM_HERE); |
| 55 } |
| 56 |
| 57 void GeoNotifier::runSuccessCallback(Geoposition* position) |
| 58 { |
| 59 // If we are here and the Geolocation permission is not approved, something
has |
| 60 // gone horribly wrong. |
| 61 if (!m_geolocation->isAllowed()) |
| 62 CRASH(); |
| 63 |
| 64 m_successCallback->handleEvent(position); |
| 65 } |
| 66 |
| 67 void GeoNotifier::runErrorCallback(PositionError* error) |
| 68 { |
| 69 if (m_errorCallback) |
| 70 m_errorCallback->handleEvent(error); |
| 71 } |
| 72 |
| 73 void GeoNotifier::startTimer() |
| 74 { |
| 75 m_timer.startOneShot(m_options->timeout() / 1000.0, FROM_HERE); |
| 76 } |
| 77 |
| 78 void GeoNotifier::stopTimer() |
| 79 { |
| 80 m_timer.stop(); |
| 81 } |
| 82 |
| 83 void GeoNotifier::timerFired(Timer<GeoNotifier>*) |
| 84 { |
| 85 m_timer.stop(); |
| 86 |
| 87 // Test for fatal error first. This is required for the case where the Local
Frame is |
| 88 // disconnected and requests are cancelled. |
| 89 if (m_fatalError) { |
| 90 runErrorCallback(m_fatalError.get()); |
| 91 // This will cause this notifier to be deleted. |
| 92 m_geolocation->fatalErrorOccurred(this); |
| 93 return; |
| 94 } |
| 95 |
| 96 if (m_useCachedPosition) { |
| 97 // Clear the cached position flag in case this is a watch request, which |
| 98 // will continue to run. |
| 99 m_useCachedPosition = false; |
| 100 m_geolocation->requestUsesCachedPosition(this); |
| 101 return; |
| 102 } |
| 103 |
| 104 if (m_errorCallback) |
| 105 m_errorCallback->handleEvent(PositionError::create(PositionError::TIMEOU
T, "Timeout expired")); |
| 106 m_geolocation->requestTimedOut(this); |
| 107 } |
| 108 |
| 109 } // namespace WebCore |
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