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// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#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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