1 /* 2 * Copyright (C) 2009 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 #include "config.h" 27 #include "GeolocationController.h" 28 #include "GeolocationPosition.h" 29 30 #if ENABLE(CLIENT_BASED_GEOLOCATION) 31 32 #include "GeolocationClient.h" 33 34 namespace WebCore { 35 36 GeolocationController::GeolocationController(Page* page, GeolocationClient* client) 37 : m_page(page) 38 , m_client(client) 39 { 40 } 41 42 GeolocationController::~GeolocationController() 43 { 44 ASSERT(m_observers.isEmpty()); 45 46 if (m_client) 47 m_client->geolocationDestroyed(); 48 } 49 50 void GeolocationController::addObserver(Geolocation* observer, bool enableHighAccuracy) 51 { 52 // This may be called multiple times with the same observer, though removeObserver() 53 // is called only once with each. 54 bool wasEmpty = m_observers.isEmpty(); 55 m_observers.add(observer); 56 if (enableHighAccuracy) 57 m_highAccuracyObservers.add(observer); 58 59 if (m_client) { 60 if (enableHighAccuracy) 61 m_client->setEnableHighAccuracy(true); 62 // See https://bugs.webkit.org/show_bug.cgi?id=87030 63 #if !PLATFORM(ANDROID) 64 if (wasEmpty) 65 #endif 66 m_client->startUpdating(); 67 } 68 } 69 70 void GeolocationController::removeObserver(Geolocation* observer) 71 { 72 if (!m_observers.contains(observer)) 73 return; 74 75 m_observers.remove(observer); 76 m_highAccuracyObservers.remove(observer); 77 78 if (m_client) { 79 if (m_observers.isEmpty()) 80 m_client->stopUpdating(); 81 else if (m_highAccuracyObservers.isEmpty()) 82 m_client->setEnableHighAccuracy(false); 83 } 84 } 85 86 void GeolocationController::requestPermission(Geolocation* geolocation) 87 { 88 if (m_client) 89 m_client->requestPermission(geolocation); 90 } 91 92 void GeolocationController::cancelPermissionRequest(Geolocation* geolocation) 93 { 94 if (m_client) 95 m_client->cancelPermissionRequest(geolocation); 96 } 97 98 void GeolocationController::positionChanged(GeolocationPosition* position) 99 { 100 m_lastPosition = position; 101 Vector<RefPtr<Geolocation> > observersVector; 102 copyToVector(m_observers, observersVector); 103 for (size_t i = 0; i < observersVector.size(); ++i) 104 observersVector[i]->positionChanged(); 105 } 106 107 void GeolocationController::errorOccurred(GeolocationError* error) 108 { 109 Vector<RefPtr<Geolocation> > observersVector; 110 copyToVector(m_observers, observersVector); 111 for (size_t i = 0; i < observersVector.size(); ++i) 112 observersVector[i]->setError(error); 113 } 114 115 GeolocationPosition* GeolocationController::lastPosition() 116 { 117 if (m_lastPosition.get()) 118 return m_lastPosition.get(); 119 120 if (!m_client) 121 return 0; 122 123 return m_client->lastPosition(); 124 } 125 126 } // namespace WebCore 127 128 #endif // ENABLE(CLIENT_BASED_GEOLOCATION) 129