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/*
* Copyright (C) 2012 Google 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.
*/
#include "config.h"
#include "CCActiveGestureAnimation.h"
#include "CCGestureCurve.h"
#include "TraceEvent.h"
namespace WebCore {
PassOwnPtr<CCActiveGestureAnimation> CCActiveGestureAnimation::create(PassOwnPtr<CCGestureCurve> curve, CCGestureCurveTarget* target)
{
return adoptPtr(new CCActiveGestureAnimation(curve, target));
}
CCActiveGestureAnimation::CCActiveGestureAnimation(PassOwnPtr<CCGestureCurve> curve, CCGestureCurveTarget* target)
: m_startTime(0)
, m_waitingForFirstTick(true)
, m_gestureCurve(curve)
, m_gestureCurveTarget(target)
{
TRACE_EVENT_ASYNC_BEGIN1("input", "GestureAnimation", this, "curve", m_gestureCurve->debugName());
}
CCActiveGestureAnimation::~CCActiveGestureAnimation()
{
TRACE_EVENT_ASYNC_END0("input", "GestureAnimation", this);
}
bool CCActiveGestureAnimation::animate(double monotonicTime)
{
if (m_waitingForFirstTick) {
m_startTime = monotonicTime;
m_waitingForFirstTick = false;
}
// CCGestureCurves used zero-based time, so subtract start-time.
return m_gestureCurve->apply(monotonicTime - m_startTime, m_gestureCurveTarget);
}
} // namespace WebCore
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