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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/AnimatableLengthBoxAndBool.h"
#include "core/animation/animatable/AnimatableLength.h"
#include "core/animation/animatable/AnimatableLengthBox.h"
namespace blink {
static bool sidesHaveSameUnits(const AnimatableValue* sideA,
const AnimatableValue* sideB) {
if (!sideA->isLength() || !sideB->isLength())
return false;
return toAnimatableLength(sideA)->hasSameUnits(toAnimatableLength(sideB));
}
// This is only used by *-image-slice properties which cannot interpolate
// between numbers and percentages. Numbers are internally represented by pixels
// on the ComputedStyle so we must manually type check both sides.
bool AnimatableLengthBoxAndBool::usesDefaultInterpolationWith(
const AnimatableValue* value) const {
const AnimatableLengthBoxAndBool* lengthBoxAndBool =
toAnimatableLengthBoxAndBool(value);
if (lengthBoxAndBool->flag() != flag())
return true;
if (!box()->isLengthBox() || !lengthBoxAndBool->box()->isLengthBox())
return AnimatableValue::usesDefaultInterpolation(box(),
lengthBoxAndBool->box());
const AnimatableLengthBox* boxA = toAnimatableLengthBox(box());
const AnimatableLengthBox* boxB =
toAnimatableLengthBox(lengthBoxAndBool->box());
return !sidesHaveSameUnits(boxA->left(), boxB->left()) ||
!sidesHaveSameUnits(boxA->right(), boxB->right()) ||
!sidesHaveSameUnits(boxA->top(), boxB->top()) ||
!sidesHaveSameUnits(boxA->bottom(), boxB->bottom());
}
PassRefPtr<AnimatableValue> AnimatableLengthBoxAndBool::interpolateTo(
const AnimatableValue* value,
double fraction) const {
const AnimatableLengthBoxAndBool* lengthBoxAndBool =
toAnimatableLengthBoxAndBool(value);
if (usesDefaultInterpolationWith(lengthBoxAndBool))
return defaultInterpolateTo(this, value, fraction);
return AnimatableLengthBoxAndBool::create(
AnimatableValue::interpolate(box(), lengthBoxAndBool->box(), fraction),
flag());
}
bool AnimatableLengthBoxAndBool::equalTo(const AnimatableValue* value) const {
const AnimatableLengthBoxAndBool* lengthBox =
toAnimatableLengthBoxAndBool(value);
return box()->equals(lengthBox->box()) && flag() == lengthBox->flag();
}
} // namespace blink
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