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 #ifndef GeolocationController_h 27 #define GeolocationController_h 28 29 #include "core/frame/LocalFrame.h" 30 #include "core/page/PageLifecycleObserver.h" 31 #include "modules/geolocation/Geolocation.h" 32 #include "platform/heap/Handle.h" 33 #include "wtf/HashSet.h" 34 #include "wtf/Noncopyable.h" 35 36 namespace blink { 37 38 class GeolocationInspectorAgent; 39 class GeolocationClient; 40 class GeolocationError; 41 class GeolocationPosition; 42 43 class GeolocationController FINAL : public NoBaseWillBeGarbageCollectedFinalized<GeolocationController>, public WillBeHeapSupplement<LocalFrame>, public PageLifecycleObserver { 44 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(GeolocationController); 45 WTF_MAKE_NONCOPYABLE(GeolocationController); 46 public: 47 virtual ~GeolocationController(); 48 49 static PassOwnPtrWillBeRawPtr<GeolocationController> create(LocalFrame&, GeolocationClient*); 50 51 void addObserver(Geolocation*, bool enableHighAccuracy); 52 void removeObserver(Geolocation*); 53 54 void requestPermission(Geolocation*); 55 void cancelPermissionRequest(Geolocation*); 56 57 void positionChanged(GeolocationPosition*); 58 void errorOccurred(GeolocationError*); 59 60 GeolocationPosition* lastPosition(); 61 62 void setClientForTest(GeolocationClient*); 63 bool hasClientForTest() { return m_hasClientForTest; } 64 GeolocationClient* client() { return m_client; } 65 66 // Inherited from PageLifecycleObserver. 67 virtual void pageVisibilityChanged() OVERRIDE; 68 69 static const char* supplementName(); 70 static GeolocationController* from(LocalFrame* frame) { return static_cast<GeolocationController*>(WillBeHeapSupplement<LocalFrame>::from(frame, supplementName())); } 71 72 // Inherited from Supplement. 73 virtual void trace(Visitor*) OVERRIDE; 74 75 private: 76 GeolocationController(LocalFrame&, GeolocationClient*); 77 78 void startUpdatingIfNeeded(); 79 void stopUpdatingIfNeeded(); 80 81 RawPtrWillBeMember<GeolocationClient> m_client; 82 bool m_hasClientForTest; 83 84 PersistentWillBeMember<GeolocationPosition> m_lastPosition; 85 typedef PersistentHeapHashSetWillBeHeapHashSet<Member<Geolocation> > ObserversSet; 86 // All observers; both those requesting high accuracy and those not. 87 ObserversSet m_observers; 88 ObserversSet m_highAccuracyObservers; 89 bool m_isClientUpdating; 90 RawPtrWillBeMember<GeolocationInspectorAgent> m_inspectorAgent; 91 }; 92 93 } // namespace blink 94 95 #endif // GeolocationController_h 96