Source/WebCore/svg/properties/SVGAnimationAdditiveValueFunctionImpl.cpp

/*
 * Copyright (C) 2019-2021 Apple Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. OR
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#include "config.h"
#include "SVGAnimationAdditiveValueFunctionImpl.h"

#include "RenderElement.h"
#include "SVGElement.h"
#include <wtf/text/StringToIntegerConversion.h>

namespace WebCore {

Color SVGAnimationColorFunction::colorFromString(SVGElement& targetElement, const String& string)
{
    static MainThreadNeverDestroyed<const AtomString> currentColor("currentColor", AtomString::ConstructFromLiteral);

    if (string != currentColor.get())
        return SVGPropertyTraits<Color>::fromString(string);

    if (auto* renderer = targetElement.renderer())
        return renderer->style().visitedDependentColor(CSSPropertyColor);

    return { };
}

std::optional<float> SVGAnimationIntegerFunction::calculateDistance(SVGElement&, const String& from, const String& to) const
{
    return std::abs(parseInteger<int>(to).value_or(0) - parseInteger<int>(from).value_or(0));
}

} // namespace WebCore