Source/core/html/shadow/DetailsMarkerControl.cpp

/*
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#include "config.h"
#include "core/html/shadow/DetailsMarkerControl.h"

#include "HTMLNames.h"
#include "core/html/HTMLSummaryElement.h"
#include "core/rendering/RenderDetailsMarker.h"

namespace WebCore {

using namespace HTMLNames;

DetailsMarkerControl::DetailsMarkerControl(Document* document)
    : HTMLDivElement(divTag, document)
{
}

RenderObject* DetailsMarkerControl::createRenderer(RenderStyle*)
{
    return new RenderDetailsMarker(this);
}

bool DetailsMarkerControl::rendererIsNeeded(const NodeRenderingContext& context)
{
    return summaryElement()->isMainSummary() && HTMLDivElement::rendererIsNeeded(context);
}

HTMLSummaryElement* DetailsMarkerControl::summaryElement()
{
    Element* element = shadowHost();
    ASSERT_WITH_SECURITY_IMPLICATION(!element || element->hasTagName(summaryTag));
    return static_cast<HTMLSummaryElement*>(element);
}

}