Source/WebCore/css/CSSImageSetOptionValue.cpp

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#include "config.h"
#include "CSSImageSetOptionValue.h"

#include "CSSImageValue.h"
#include "CSSPrimitiveNumericTypes+CSSValueVisitation.h"
#include "CSSPrimitiveNumericTypes+Serialization.h"

namespace WebCore {

CSSImageSetOptionValue::CSSImageSetOptionValue(Ref<CSSValue>&& image, std::optional<CSS::Resolution<>>&& resolution, std::optional<FunctionNotation<CSSValueType, CSS::String>>&& mimeType)
    : CSSValue(ClassType::ImageSetOption)
    , m_image(WTF::move(image))
    , m_resolution(resolution.value_or(CSS::Literals::x(1)))
    , m_mimeType(WTF::move(mimeType))
{
}

Ref<CSSImageSetOptionValue> CSSImageSetOptionValue::create(Ref<CSSValue>&& image, std::optional<CSS::Resolution<>>&& resolution, std::optional<FunctionNotation<CSSValueType, CSS::String>>&& mimeType)
{
    ASSERT(is<CSSImageValue>(image) || image->isImageGeneratorValue());
    return adoptRef(*new CSSImageSetOptionValue( WTF::move(image), WTF::move(resolution), WTF::move(mimeType)));
}

bool CSSImageSetOptionValue::equals(const CSSImageSetOptionValue& other) const
{
    if (!m_image->equals(other.m_image))
        return false;
    if (m_resolution != other.m_resolution)
        return false;
    if (m_mimeType != other.m_mimeType)
        return false;
    return true;
}

String CSSImageSetOptionValue::customCSSText(const CSS::SerializationContext& context) const
{
    using namespace CSS::Literals;

    StringBuilder builder;
    builder.append(m_image->cssText(context));

    // FIXME: The resolution should probably not be serialized when m_resolution is the default value to comply with the shortest serialization principle.
    builder.append(' ');
    CSS::serializationForCSS(builder, context, m_resolution);

    if (m_mimeType) {
        builder.append(' ');
        CSS::serializationForCSS(builder, context, *m_mimeType);
    }

    return builder.toString();
}

IterationStatus CSSImageSetOptionValue::customVisitChildren(NOESCAPE const Function<IterationStatus(CSSValue&)>& func) const
{
    if (func(m_image.get()) == IterationStatus::Done)
        return IterationStatus::Done;
    if (CSS::visitCSSValueChildren(func, m_resolution) == IterationStatus::Done)
        return IterationStatus::Done;
    if (CSS::visitCSSValueChildren(func, m_mimeType) == IterationStatus::Done)
        return IterationStatus::Done;
    return IterationStatus::Continue;
}

bool CSSImageSetOptionValue::customTraverseSubresources(NOESCAPE const Function<bool(const CachedResource&)>& handler) const
{
    return m_image->traverseSubresources(handler);
}

} // namespace WebCore