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/*
* Copyright (C) 2013 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER 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.
*/
#include "config.h"
#include "core/animation/AnimatableDouble.h"
#include "core/css/CSSPrimitiveValue.h"
#include "core/css/CSSValuePool.h"
#include "platform/animation/AnimationUtilities.h"
namespace WebCore {
PassRefPtr<CSSValue> AnimatableDouble::toCSSValue() const
{
return cssValuePool().createValue(m_number, CSSPrimitiveValue::CSS_NUMBER);
}
PassRefPtr<AnimatableValue> AnimatableDouble::interpolateTo(const AnimatableValue* value, double fraction) const
{
const AnimatableDouble* other = toAnimatableDouble(value);
ASSERT(m_constraint == other->m_constraint);
if ((m_constraint == InterpolationIsNonContinuousWithZero) && (!m_number || !other->m_number))
return defaultInterpolateTo(this, value, fraction);
return AnimatableDouble::create(blend(m_number, other->m_number, fraction));
}
PassRefPtr<AnimatableValue> AnimatableDouble::addWith(const AnimatableValue* value) const
{
// Optimization for adding with 0.
if (!m_number)
return takeConstRef(value);
const AnimatableDouble* other = toAnimatableDouble(value);
if (!other->m_number)
return takeConstRef(this);
return AnimatableDouble::create(m_number + other->m_number);
}
bool AnimatableDouble::equalTo(const AnimatableValue* value) const
{
return m_number == toAnimatableDouble(value)->m_number;
}
} // namespace WebCore
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