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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 "core/animation/animatable/AnimatableShadow.h"
namespace blink {
PassRefPtr<AnimatableValue> AnimatableShadow::interpolateTo(
const AnimatableValue* value,
double fraction) const {
if (usesDefaultInterpolationWith(value))
return defaultInterpolateTo(this, value, fraction);
const AnimatableShadow* shadowList = toAnimatableShadow(value);
return AnimatableShadow::create(
ShadowList::blend(m_shadowList.get(), shadowList->m_shadowList.get(),
fraction, m_currentColor),
m_currentColor);
}
bool AnimatableShadow::usesDefaultInterpolationWith(
const AnimatableValue* value) const {
const AnimatableShadow* target = toAnimatableShadow(value);
if (!m_shadowList || !target->m_shadowList)
return false;
size_t minLength = std::min(m_shadowList->shadows().size(),
target->m_shadowList->shadows().size());
for (size_t i = 0; i < minLength; ++i) {
ShadowStyle fromShadowStyle = m_shadowList->shadows()[i].style();
ShadowStyle toShadowStyle = target->m_shadowList->shadows()[i].style();
if (fromShadowStyle != toShadowStyle)
return true;
}
return false;
}
bool AnimatableShadow::equalTo(const AnimatableValue* value) const {
const ShadowList* shadowList = toAnimatableShadow(value)->m_shadowList.get();
return m_shadowList == shadowList ||
(m_shadowList && shadowList && *m_shadowList == *shadowList);
}
} // namespace blink
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