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/*
* 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
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 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
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#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"_s);
if (string != currentColor.get())
return SVGPropertyTraits<Color>::fromString(string);
if (auto* renderer = targetElement.renderer())
return renderer->style().visitedDependentColor(CSSPropertyColor);
return { };
}
std::optional<float> SVGAnimationColorFunction::calculateDistance(SVGElement&, const String& from, const String& to) const
{
auto simpleFrom = CSSParser::parseColorWithoutContext(from.trim(deprecatedIsSpaceOrNewline)).toColorTypeLossy<SRGBA<uint8_t>>().resolved();
auto simpleTo = CSSParser::parseColorWithoutContext(to.trim(deprecatedIsSpaceOrNewline)).toColorTypeLossy<SRGBA<uint8_t>>().resolved();
float red = simpleFrom.red - simpleTo.red;
float green = simpleFrom.green - simpleTo.green;
float blue = simpleFrom.blue - simpleTo.blue;
return std::hypot(red, green, blue);
}
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
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