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/page/Page.h" 30#include "modules/geolocation/Geolocation.h" 31#include "wtf/HashSet.h" 32#include "wtf/Noncopyable.h" 33#include "wtf/RefPtr.h" 34 35namespace WebCore { 36 37class GeolocationClient; 38class GeolocationError; 39class GeolocationPosition; 40class Page; 41 42class GeolocationController : public Supplement<Page> { 43 WTF_MAKE_NONCOPYABLE(GeolocationController); 44public: 45 ~GeolocationController(); 46 47 static PassOwnPtr<GeolocationController> create(Page*, GeolocationClient*); 48 49 void addObserver(Geolocation*, bool enableHighAccuracy); 50 void removeObserver(Geolocation*); 51 52 void requestPermission(Geolocation*); 53 void cancelPermissionRequest(Geolocation*); 54 55 void positionChanged(GeolocationPosition*); 56 void errorOccurred(GeolocationError*); 57 58 GeolocationPosition* lastPosition(); 59 60 GeolocationClient* client() { return m_client; } 61 62 static const char* supplementName(); 63 static GeolocationController* from(Page* page) { return static_cast<GeolocationController*>(Supplement<Page>::from(page, supplementName())); } 64 65private: 66 GeolocationController(Page*, GeolocationClient*); 67 68 GeolocationClient* m_client; 69 Page* m_page; 70 71 RefPtr<GeolocationPosition> m_lastPosition; 72 typedef HashSet<RefPtr<Geolocation> > ObserversSet; 73 // All observers; both those requesting high accuracy and those not. 74 ObserversSet m_observers; 75 ObserversSet m_highAccuracyObservers; 76}; 77 78} // namespace WebCore 79 80#endif // GeolocationController_h 81