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/*
* Copyright (C) 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(GEOLOCATION)
#include "ActivityStateChangeObserver.h"
#include "Geolocation.h"
#include "Page.h"
#include "RegistrableDomain.h"
#include <wtf/HashSet.h>
#include <wtf/Noncopyable.h>
#include <wtf/RefPtr.h>
#include <wtf/TZoneMalloc.h>
namespace WebCore {
class GeolocationClient;
class GeolocationError;
class GeolocationPositionData;
class GeolocationController : public Supplement<Page>, private ActivityStateChangeObserver {
WTF_MAKE_TZONE_ALLOCATED(GeolocationController);
WTF_MAKE_NONCOPYABLE(GeolocationController);
public:
GeolocationController(Page&, GeolocationClient&);
~GeolocationController();
void addObserver(Geolocation&, bool enableHighAccuracy);
void removeObserver(Geolocation&);
void requestPermission(Geolocation&);
void cancelPermissionRequest(Geolocation&);
WEBCORE_EXPORT void positionChanged(const std::optional<GeolocationPositionData>&);
WEBCORE_EXPORT void errorOccurred(GeolocationError&);
std::optional<GeolocationPositionData> lastPosition();
GeolocationClient& client();
WEBCORE_EXPORT static ASCIILiteral supplementName();
static GeolocationController* from(Page* page) { return static_cast<GeolocationController*>(Supplement<Page>::from(page, supplementName())); }
void revokeAuthorizationToken(const String&);
void didNavigatePage();
private:
WeakRef<Page> m_page;
CheckedPtr<GeolocationClient> m_client; // Only becomes null in the class destructor
void activityStateDidChange(OptionSet<ActivityState> oldActivityState, OptionSet<ActivityState> newActivityState) override;
std::optional<GeolocationPositionData> m_lastPosition;
bool needsHighAccuracy() const { return !m_highAccuracyObservers.isEmpty(); }
void startUpdatingIfNecessary();
void stopUpdatingIfNecessary();
typedef HashSet<Ref<Geolocation>> ObserversSet;
// All observers; both those requesting high accuracy and those not.
ObserversSet m_observers;
ObserversSet m_highAccuracyObservers;
// While the page is not visible, we pend permission requests.
HashSet<Ref<Geolocation>> m_pendingPermissionRequest;
RegistrableDomain m_registrableDomain;
bool m_isUpdating { false };
};
} // namespace WebCore
#endif // ENABLE(GEOLOCATION)
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