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/*
* Copyright (C) 2012 Samsung Electronics
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef VibrationController_h
#define VibrationController_h
#include "core/dom/ContextLifecycleObserver.h"
#include "core/page/PageVisibilityObserver.h"
#include "device/vibration/vibration_manager.mojom-blink.h"
#include "modules/ModulesExport.h"
#include "platform/Timer.h"
#include "platform/heap/GarbageCollected.h"
#include "platform/heap/Handle.h"
#include "wtf/Noncopyable.h"
#include "wtf/Vector.h"
namespace blink {
class Document;
class UnsignedLongOrUnsignedLongSequence;
class MODULES_EXPORT VibrationController final
: public GarbageCollectedFinalized<VibrationController>,
public ContextLifecycleObserver,
public PageVisibilityObserver {
USING_GARBAGE_COLLECTED_MIXIN(VibrationController);
WTF_MAKE_NONCOPYABLE(VibrationController);
public:
using VibrationPattern = Vector<unsigned>;
explicit VibrationController(Document&);
virtual ~VibrationController();
static VibrationPattern sanitizeVibrationPattern(
const UnsignedLongOrUnsignedLongSequence&);
bool vibrate(const VibrationPattern&);
void doVibrate(TimerBase*);
void didVibrate();
// Cancels the ongoing vibration if there is one.
void cancel();
void didCancel();
// Whether a pattern is being processed. If this is true, the vibration
// hardware may currently be active, but during a pause it may be inactive.
bool isRunning() const { return m_isRunning; }
VibrationPattern pattern() const { return m_pattern; }
DECLARE_VIRTUAL_TRACE();
private:
// Inherited from ContextLifecycleObserver.
void contextDestroyed(ExecutionContext*) override;
// Inherited from PageVisibilityObserver.
void pageVisibilityChanged() override;
// The VibrationManager mojo service. This is reset in |contextDestroyed|
// and must not be called or recreated after it is reset.
device::blink::VibrationManagerPtr m_service;
// Timer for calling |doVibrate| after a delay. It is safe to call
// |startOneshot| when the timer is already running: it may affect the time
// at which it fires, but |doVibrate| will still be called only once.
Timer<VibrationController> m_timerDoVibrate;
// Whether a pattern is being processed. The vibration hardware may
// currently be active, or during a pause it may be inactive.
bool m_isRunning;
// Whether an async mojo call to cancel is pending.
bool m_isCallingCancel;
// Whether an async mojo call to vibrate is pending.
bool m_isCallingVibrate;
VibrationPattern m_pattern;
};
} // namespace blink
#endif // VibrationController_h
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