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#include "config.h"
#include "core/animation/VisibilityStyleInterpolation.h"
#include "core/css/CSSPrimitiveValue.h"
#include "core/css/resolver/StyleBuilder.h"
namespace blink {
bool VisibilityStyleInterpolation::canCreateFrom(const CSSValue& value)
{
return value.isPrimitiveValue() && toCSSPrimitiveValue(value).isValueID();
}
bool VisibilityStyleInterpolation::isVisible(const CSSValue& value)
{
return toCSSPrimitiveValue(value).getValueID() == CSSValueVisible;
}
PassOwnPtrWillBeRawPtr<InterpolableValue> VisibilityStyleInterpolation::visibilityToInterpolableValue(const CSSValue& value)
{
ASSERT(value.isPrimitiveValue());
const CSSPrimitiveValue& primitive = toCSSPrimitiveValue(value);
ASSERT(primitive.isValueID());
const CSSValueID valueID = primitive.getValueID();
if (valueID == CSSValueVisible) {
return InterpolableNumber::create(1.0);
}
return InterpolableNumber::create(0.0);
}
PassRefPtrWillBeRawPtr<CSSValue> VisibilityStyleInterpolation::interpolableValueToVisibility(InterpolableValue* value, CSSValueID notVisible)
{
ASSERT(value->isNumber());
InterpolableNumber* number = toInterpolableNumber(value);
if (number->value() > 0)
return CSSPrimitiveValue::createIdentifier(CSSValueVisible);
return CSSPrimitiveValue::createIdentifier(notVisible);
}
void VisibilityStyleInterpolation::apply(StyleResolverState& state) const
{
StyleBuilder::applyProperty(m_id, state, interpolableValueToVisibility(m_cachedValue.get(), m_notVisible).get());
}
void VisibilityStyleInterpolation::trace(Visitor* visitor)
{
StyleInterpolation::trace(visitor);
}
}
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