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/*
* Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All Rights Reserved.
* Copyright 2010, The Android Open Source Project
*
* 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. ``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
* 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 "ActiveDOMObject.h"
#include "Document.h"
#include "GeolocationPosition.h"
#include "GeolocationPositionError.h"
#include "PositionCallback.h"
#include "PositionErrorCallback.h"
#include "PositionOptions.h"
#include "ScriptWrappable.h"
#include "Timer.h"
#include <wtf/CheckedRef.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/RefCountedAndCanMakeWeakPtr.h>
namespace WebCore {
class GeoNotifier;
class GeolocationError;
class LocalFrame;
class Navigator;
class Page;
class ScriptExecutionContext;
class SecurityOrigin;
struct PositionOptions;
class Geolocation final : public RefCountedAndCanMakeWeakPtr<Geolocation>, public ScriptWrappable, public ActiveDOMObject {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_EXPORT(Geolocation, WEBCORE_EXPORT);
friend class GeoNotifier;
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
static Ref<Geolocation> create(Navigator&);
WEBCORE_EXPORT ~Geolocation();
WEBCORE_EXPORT void resetAllGeolocationPermission();
Document* document() const { return downcast<Document>(scriptExecutionContext()); }
void getCurrentPosition(Ref<PositionCallback>&&, RefPtr<PositionErrorCallback>&&, PositionOptions&&);
int watchPosition(Ref<PositionCallback>&&, RefPtr<PositionErrorCallback>&&, PositionOptions&&);
void clearWatch(int watchID);
WEBCORE_EXPORT void setIsAllowed(bool, const String& authorizationToken);
const String& authorizationToken() const { return m_authorizationToken; }
WEBCORE_EXPORT void resetIsAllowed();
bool isAllowed() const { return m_allowGeolocation == Yes; }
void positionChanged();
void setError(GeolocationError&);
bool shouldBlockGeolocationRequests();
Navigator* navigator();
WEBCORE_EXPORT LocalFrame* frame() const;
private:
explicit Geolocation(Navigator&);
GeolocationPosition* lastPosition();
// ActiveDOMObject.
void stop() override;
void suspend(ReasonForSuspension) override;
void resume() override;
bool isDenied() const { return m_allowGeolocation == No; }
Page* page() const;
SecurityOrigin* securityOrigin() const;
RefPtr<SecurityOrigin> protectedSecurityOrigin() const;
typedef Vector<RefPtr<GeoNotifier>> GeoNotifierVector;
typedef HashSet<RefPtr<GeoNotifier>> GeoNotifierSet;
class Watchers {
public:
bool add(int id, RefPtr<GeoNotifier>&&);
GeoNotifier* find(int id);
void remove(int id);
void remove(GeoNotifier*);
bool contains(GeoNotifier*) const;
void clear();
bool isEmpty() const;
void getNotifiersVector(GeoNotifierVector&) const;
private:
typedef HashMap<int, RefPtr<GeoNotifier>> IdToNotifierMap;
typedef HashMap<RefPtr<GeoNotifier>, int> NotifierToIdMap;
IdToNotifierMap m_idToNotifierMap;
NotifierToIdMap m_notifierToIdMap;
};
bool hasListeners() const { return !m_oneShots.isEmpty() || !m_watchers.isEmpty(); }
void sendError(GeoNotifierVector&, GeolocationPositionError&);
void sendPosition(GeoNotifierVector&, GeolocationPosition&);
static void extractNotifiersWithCachedPosition(GeoNotifierVector& notifiers, GeoNotifierVector* cached);
static void copyToSet(const GeoNotifierVector&, GeoNotifierSet&);
static void stopTimer(GeoNotifierVector&);
void stopTimersForOneShots();
void stopTimersForWatchers();
void stopTimers();
void cancelRequests(GeoNotifierVector&);
void cancelAllRequests();
void makeSuccessCallbacks(GeolocationPosition&);
void handleError(GeolocationPositionError&);
void requestPermission();
void revokeAuthorizationTokenIfNecessary();
bool startUpdating(GeoNotifier*);
void stopUpdating();
void handlePendingPermissionNotifiers();
void startRequest(GeoNotifier*);
void fatalErrorOccurred(GeoNotifier*);
void requestTimedOut(GeoNotifier*);
void requestUsesCachedPosition(GeoNotifier*);
bool haveSuitableCachedPosition(const PositionOptions&);
void makeCachedPositionCallbacks();
void resumeTimerFired();
WeakPtr<Navigator> m_navigator;
GeoNotifierSet m_oneShots;
Watchers m_watchers;
GeoNotifierSet m_pendingForPermissionNotifiers;
RefPtr<GeolocationPosition> m_lastPosition;
enum { Unknown, InProgress, Yes, No } m_allowGeolocation { Unknown };
String m_authorizationToken;
bool m_isSuspended { false };
bool m_resetOnResume { false };
bool m_hasChangedPosition { false };
RefPtr<GeolocationPositionError> m_errorWaitingForResume;
Timer m_resumeTimer;
GeoNotifierSet m_requestsAwaitingCachedPosition;
};
} // namespace WebCore
#endif // ENABLE(GEOLOCATION)
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