InterpolationValue CSSColorInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
if (!state.parentStyle())
return nullptr;
// Visited color can never explicitly inherit from parent visited color so only use the unvisited color.
const StyleColor inheritedColor = ColorPropertyFunctions::getUnvisitedColor(cssProperty(), *state.parentStyle());
conversionCheckers.append(ParentColorChecker::create(cssProperty(), inheritedColor));
return convertStyleColorPair(inheritedColor, inheritedColor);
}
InterpolationValue CSSColorInterpolationType::maybeConvertUnderlyingValue(const InterpolationEnvironment& environment) const
{
return convertStyleColorPair(
ColorPropertyFunctions::getUnvisitedColor(cssProperty(), *environment.state().style()),
ColorPropertyFunctions::getVisitedColor(cssProperty(), *environment.state().style()));
}
InterpolationValue CSSColorInterpolationType::maybeConvertInitial(const StyleResolverState&, ConversionCheckers& conversionCheckers) const
{
const StyleColor initialColor = ColorPropertyFunctions::getInitialColor(cssProperty());
return convertStyleColorPair(initialColor, initialColor);
}
InterpolationValue CSSColorInterpolationType::maybeConvertNeutral(const InterpolationValue&, ConversionCheckers&) const
{
return convertStyleColorPair(StyleColor(Color::transparent), StyleColor(Color::transparent));
}
PassOwnPtr<InterpolationValue> CSSColorInterpolationType::maybeConvertInitial() const
{
const StyleColor initialColor = ColorPropertyFunctions::getInitialColor(cssProperty());
return convertStyleColorPair(initialColor, initialColor);
}
PassOwnPtr<InterpolationValue> CSSColorInterpolationType::maybeConvertNeutral(const UnderlyingValue&, ConversionCheckers&) const
{
return convertStyleColorPair(StyleColor(Color::transparent), StyleColor(Color::transparent));
}
