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/*
* Copyright (C) 2008, 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. ``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.
*/
#ifndef Geolocation_h
#define Geolocation_h
#include "GeolocationService.h"
#include "PositionCallback.h"
#include "PositionErrorCallback.h"
#include "PositionOptions.h"
#include "Timer.h"
#include <wtf/Platform.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/OwnPtr.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
class Frame;
class Geoposition;
class Geolocation : public RefCounted<Geolocation>, public GeolocationServiceClient {
public:
static PassRefPtr<Geolocation> create(Frame* frame) { return adoptRef(new Geolocation(frame)); }
virtual ~Geolocation() {}
void disconnectFrame();
Geoposition* lastPosition() const { return m_service->lastPosition(); }
void getCurrentPosition(PassRefPtr<PositionCallback>, PassRefPtr<PositionErrorCallback>, PassRefPtr<PositionOptions>);
int watchPosition(PassRefPtr<PositionCallback>, PassRefPtr<PositionErrorCallback>, PassRefPtr<PositionOptions>);
void clearWatch(int watchId);
void suspend();
void resume();
void setIsAllowed(bool);
bool isAllowed() const { return m_allowGeolocation == Yes; }
void setShouldClearCache(bool shouldClearCache) { m_shouldClearCache = shouldClearCache; }
bool shouldClearCache() const { return m_shouldClearCache; }
private:
Geolocation(Frame*);
class GeoNotifier : public RefCounted<GeoNotifier> {
public:
static PassRefPtr<GeoNotifier> create(PassRefPtr<PositionCallback> positionCallback, PassRefPtr<PositionErrorCallback> positionErrorCallback, PassRefPtr<PositionOptions> options) { return adoptRef(new GeoNotifier(positionCallback, positionErrorCallback, options)); }
void startTimer();
void timerFired(Timer<GeoNotifier>*);
RefPtr<PositionCallback> m_successCallback;
RefPtr<PositionErrorCallback> m_errorCallback;
RefPtr<PositionOptions> m_options;
Timer<GeoNotifier> m_timer;
private:
GeoNotifier(PassRefPtr<PositionCallback>, PassRefPtr<PositionErrorCallback>, PassRefPtr<PositionOptions>);
};
bool hasListeners() const { return !m_oneShots.isEmpty() || !m_watchers.isEmpty(); }
void sendErrorToOneShots(PositionError*);
void sendErrorToWatchers(PositionError*);
void sendPositionToOneShots(Geoposition*);
void sendPositionToWatchers(Geoposition*);
static void startTimer(Vector<RefPtr<GeoNotifier> >&);
void startTimersForOneShots();
void startTimersForWatchers();
void startTimers();
void handleError(PositionError*);
void requestPermission();
// GeolocationServiceClient
virtual void geolocationServicePositionChanged(GeolocationService*);
virtual void geolocationServiceErrorOccurred(GeolocationService*);
typedef HashSet<RefPtr<GeoNotifier> > GeoNotifierSet;
typedef HashMap<int, RefPtr<GeoNotifier> > GeoNotifierMap;
GeoNotifierSet m_oneShots;
GeoNotifierMap m_watchers;
Frame* m_frame;
OwnPtr<GeolocationService> m_service;
enum {
Unknown,
InProgress,
Yes,
No
} m_allowGeolocation;
bool m_shouldClearCache;
};
} // namespace WebCore
#endif // Geolocation_h
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