#include "config.h"
#include "PseudoElement.h"
#include "ContentData.h"
#include "DocumentTimeline.h"
#include "InspectorInstrumentation.h"
#include "KeyframeEffectStack.h"
#include "RenderElement.h"
#include "RenderImage.h"
#include "RenderQuote.h"
#include "StyleResolver.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(PseudoElement);
const QualifiedName& pseudoElementTagName()
{
static NeverDestroyed<QualifiedName> name(nullAtom(), "<pseudo>", nullAtom());
return name;
}
PseudoElement::PseudoElement(Element& host, PseudoId pseudoId)
: Element(pseudoElementTagName(), host.document(), CreatePseudoElement)
, m_hostElement(&host)
, m_pseudoId(pseudoId)
{
ASSERT(pseudoId == PseudoId::Before || pseudoId == PseudoId::After);
setHasCustomStyleResolveCallbacks();
}
PseudoElement::~PseudoElement()
{
ASSERT(!m_hostElement);
}
Ref<PseudoElement> PseudoElement::create(Element& host, PseudoId pseudoId)
{
auto pseudoElement = adoptRef(*new PseudoElement(host, pseudoId));
InspectorInstrumentation::pseudoElementCreated(host.document().page(), pseudoElement.get());
return pseudoElement;
}
void PseudoElement::clearHostElement()
{
InspectorInstrumentation::pseudoElementDestroyed(document().page(), *this);
if (auto* timeline = document().existingTimeline())
timeline->elementWasRemoved(Styleable::fromElement(*this));
m_hostElement = nullptr;
}
bool PseudoElement::rendererIsNeeded(const RenderStyle& style)
{
if (pseudoElementRendererIsNeeded(&style))
return true;
if (m_hostElement) {
if (auto* stack = m_hostElement->keyframeEffectStack(pseudoId()))
return stack->requiresPseudoElement();
}
return false;
}
}