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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.
*/
#include "config.h"
#include "Vibration.h"
#if ENABLE(VIBRATION)
#include "VibrationClient.h"
namespace WebCore {
Vibration::Vibration(VibrationClient* client)
: m_vibrationClient(client)
, m_timerStart(this, &Vibration::timerStartFired)
, m_timerStop(this, &Vibration::timerStopFired)
, m_isVibrating(false)
{
}
Vibration::~Vibration()
{
m_vibrationClient->vibrationDestroyed();
}
PassOwnPtr<Vibration> Vibration::create(VibrationClient* client)
{
return adoptPtr(new Vibration(client));
}
bool Vibration::vibrate(const VibrationPattern& pattern)
{
size_t length = pattern.size();
m_pattern = pattern;
if (length && !(length % 2))
m_pattern.removeLast();
// Pre-exsiting instance need to be canceled when vibration is called.
// And if time is 0, vibration have to be canceled also.
if (m_isVibrating || (m_pattern.size() == 1 && !m_pattern[0]))
cancelVibration();
if (!m_pattern.size())
return true;
m_timerStart.startOneShot(0);
m_isVibrating = true;
return true;
}
void Vibration::cancelVibration()
{
m_pattern.clear();
if (m_isVibrating)
stopVibration();
}
void Vibration::suspendVibration()
{
if (!m_isVibrating)
return;
m_pattern.insert(0, m_timerStop.nextFireInterval());
stopVibration();
}
void Vibration::resumeVibration()
{
m_timerStart.startOneShot(0);
m_isVibrating = true;
}
void Vibration::stopVibration()
{
m_timerStart.stop();
m_timerStop.stop();
m_vibrationClient->cancelVibration();
m_isVibrating = false;
}
void Vibration::timerStartFired(Timer<Vibration>* timer)
{
ASSERT_UNUSED(timer, timer == &m_timerStart);
m_timerStart.stop();
if (!m_pattern.isEmpty()) {
m_vibrationClient->vibrate(m_pattern[0]);
m_timerStop.startOneShot(m_pattern[0] / 1000.0);
m_pattern.remove(0);
}
}
void Vibration::timerStopFired(Timer<Vibration>* timer)
{
ASSERT_UNUSED(timer, timer == &m_timerStop);
m_timerStop.stop();
if (!m_pattern.isEmpty()) {
m_timerStart.startOneShot(m_pattern[0] / 1000.0);
m_pattern.remove(0);
if (m_pattern.isEmpty())
m_isVibrating = false;
}
}
const char* Vibration::supplementName()
{
return "Vibration";
}
bool Vibration::isActive(Page* page)
{
return static_cast<bool>(Vibration::from(page));
}
void provideVibrationTo(Page* page, VibrationClient* client)
{
Vibration::provideTo(page, Vibration::supplementName(), Vibration::create(client));
}
} // namespace WebCore
#endif // ENABLE(VIBRATION)
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