float SVGAnimatedColorAnimator::calculateDistance(const String& fromString, const String& toString)
{
// FIXME: currentColor should be resolved
ASSERT(m_contextElement);
StyleColor from = SVGColor::colorFromRGBColorString(fromString);
if (from.isCurrentColor())
return -1;
StyleColor to = SVGColor::colorFromRGBColorString(toString);
if (to.isCurrentColor())
return -1;
return ColorDistance::distance(from.color(), to.color());
}
Color CSSColorInterpolationType::resolveInterpolableColor(const InterpolableValue& interpolableColor, const StyleResolverState& state, bool isVisited, bool isTextDecoration)
{
const InterpolableList& list = toInterpolableList(interpolableColor);
ASSERT(list.length() == InterpolableColorIndexCount);
double red = toInterpolableNumber(list.get(Red))->value();
double green = toInterpolableNumber(list.get(Green))->value();
double blue = toInterpolableNumber(list.get(Blue))->value();
double alpha = toInterpolableNumber(list.get(Alpha))->value();
if (double currentcolorFraction = toInterpolableNumber(list.get(Currentcolor))->value()) {
auto currentColorGetter = isVisited ? ColorPropertyFunctions::getVisitedColor : ColorPropertyFunctions::getUnvisitedColor;
StyleColor currentStyleColor = StyleColor::currentColor();
if (isTextDecoration)
currentStyleColor = currentColorGetter(CSSPropertyWebkitTextFillColor, *state.style());
if (currentStyleColor.isCurrentColor())
currentStyleColor = currentColorGetter(CSSPropertyColor, *state.style());
addPremultipliedColor(red, green, blue, alpha, currentcolorFraction, currentStyleColor.getColor());
}
const TextLinkColors& colors = state.document().textLinkColors();
if (double webkitActivelinkFraction = toInterpolableNumber(list.get(WebkitActivelink))->value())
addPremultipliedColor(red, green, blue, alpha, webkitActivelinkFraction, colors.activeLinkColor());
if (double webkitLinkFraction = toInterpolableNumber(list.get(WebkitLink))->value())
addPremultipliedColor(red, green, blue, alpha, webkitLinkFraction, isVisited ? colors.visitedLinkColor() : colors.linkColor());
if (double quirkInheritFraction = toInterpolableNumber(list.get(QuirkInherit))->value())
addPremultipliedColor(red, green, blue, alpha, quirkInheritFraction, colors.textColor());
alpha = clampTo<double>(alpha, 0, 255);
if (alpha == 0)
return Color::transparent;
return makeRGBA(
round(red / alpha),
round(green / alpha),
round(blue / alpha),
round(alpha));
}
std::unique_ptr<InterpolableValue> CSSColorInterpolationType::createInterpolableColor(const StyleColor& color)
{
if (color.isCurrentColor())
return createInterpolableColorForIndex(Currentcolor);
return createInterpolableColor(color.getColor());
}
