96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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* Copyright (C) 2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "PseudoElement.h"
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#include "ContentData.h"
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#include "DocumentTimeline.h"
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#include "InspectorInstrumentation.h"
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#include "KeyframeEffectStack.h"
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#include "RenderElement.h"
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#include "RenderImage.h"
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#include "RenderQuote.h"
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#include "StyleResolver.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(PseudoElement);
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const QualifiedName& pseudoElementTagName()
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{
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static NeverDestroyed<QualifiedName> name(nullAtom(), "<pseudo>", nullAtom());
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return name;
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}
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PseudoElement::PseudoElement(Element& host, PseudoId pseudoId)
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: Element(pseudoElementTagName(), host.document(), CreatePseudoElement)
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, m_hostElement(&host)
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, m_pseudoId(pseudoId)
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{
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ASSERT(pseudoId == PseudoId::Before || pseudoId == PseudoId::After);
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setHasCustomStyleResolveCallbacks();
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}
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PseudoElement::~PseudoElement()
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{
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ASSERT(!m_hostElement);
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}
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Ref<PseudoElement> PseudoElement::create(Element& host, PseudoId pseudoId)
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{
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auto pseudoElement = adoptRef(*new PseudoElement(host, pseudoId));
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InspectorInstrumentation::pseudoElementCreated(host.document().page(), pseudoElement.get());
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return pseudoElement;
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}
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void PseudoElement::clearHostElement()
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{
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InspectorInstrumentation::pseudoElementDestroyed(document().page(), *this);
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Styleable::fromElement(*this).elementWasRemoved();
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m_hostElement = nullptr;
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}
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bool PseudoElement::rendererIsNeeded(const RenderStyle& style)
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{
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if (pseudoElementRendererIsNeeded(&style))
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return true;
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if (m_hostElement) {
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if (auto* stack = m_hostElement->keyframeEffectStack(pseudoId()))
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return stack->requiresPseudoElement();
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}
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return false;
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}
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} // namespace
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