static std::unique_ptr<InterpolableValue> convertClipComponent(
const CSSValue& length) {
if (isCSSAuto(length))
return InterpolableList::create(0);
return LengthInterpolationFunctions::maybeConvertCSSValue(length)
.interpolableValue;
}
InterpolationValue CSSClipInterpolationType::maybeConvertValue(const CSSValue& value, const StyleResolverState& state, ConversionCheckers&) const
{
if (!value.isQuadValue())
return nullptr;
const CSSQuadValue& quad = toCSSQuadValue(value);
OwnPtr<InterpolableList> list = InterpolableList::create(ClipComponentIndexCount);
list->set(ClipTop, convertClipComponent(*quad.top()));
list->set(ClipRight, convertClipComponent(*quad.right()));
list->set(ClipBottom, convertClipComponent(*quad.bottom()));
list->set(ClipLeft, convertClipComponent(*quad.left()));
ClipAutos autos(
isCSSAuto(*quad.top()),
isCSSAuto(*quad.right()),
isCSSAuto(*quad.bottom()),
isCSSAuto(*quad.left()));
return InterpolationValue(list.release(), CSSClipNonInterpolableValue::create(autos));
}
static PassOwnPtr<InterpolableValue> convertClipComponent(const CSSPrimitiveValue& length)
{
if (isCSSAuto(length))
return InterpolableList::create(0);
return CSSLengthInterpolationType::maybeConvertCSSValue(length).interpolableValue.release();
}
