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/*
* Copyright (C) 2024 Samuel Weinig <sam@webkit.org>
*
* 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,
* 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 "CSSEllipseFunction.h"
#include "CSSPrimitiveNumericTypes+Serialization.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
namespace CSS {
static bool hasDefaultValueForEllipseRadius(Ellipse::RadialSize radius)
{
return WTF::switchOn(radius,
[](Ellipse::Extent extent) {
// FIXME: The spec says that `farthest-corner` should be the default, but this does not match the tests.
return std::holds_alternative<Keyword::ClosestSide>(extent);
},
[](const auto&) {
return false;
}
);
}
void Serialize<Ellipse>::operator()(StringBuilder& builder, const SerializationContext& context, const Ellipse& value)
{
// <ellipse()> = ellipse( <radial-size>? [ at <position> ]? )
auto lengthBefore = builder.length();
if (!hasDefaultValueForEllipseRadius(get<0>(value.radii)) || !hasDefaultValueForEllipseRadius(get<1>(value.radii)))
serializationForCSS(builder, context, value.radii);
if (value.position) {
// FIXME: To match other serialization of Percentage, this should not serialize if equal to the default value of 50% 50%, but this does not match the tests.
bool wroteSomething = builder.length() != lengthBefore;
builder.append(wroteSomething ? " at "_s : "at "_s);
serializationForCSS(builder, context, *value.position);
}
}
} // namespace CSS
} // namespace WebCore
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