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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR 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 "PseudoElement.h"
#include "ContentData.h"
#include "InspectorInstrumentation.h"
#include "RenderElement.h"
#include "RenderImage.h"
#include "RenderQuote.h"
namespace WebCore {
const QualifiedName& pseudoElementTagName()
{
DEPRECATED_DEFINE_STATIC_LOCAL(QualifiedName, name, (nullAtom, "<pseudo>", nullAtom));
return name;
}
String PseudoElement::pseudoElementNameForEvents(PseudoId pseudoId)
{
DEPRECATED_DEFINE_STATIC_LOCAL(const String, after, (ASCIILiteral("::after")));
DEPRECATED_DEFINE_STATIC_LOCAL(const String, before, (ASCIILiteral("::before")));
switch (pseudoId) {
case AFTER:
return after;
case BEFORE:
return before;
default:
return emptyString();
}
}
PseudoElement::PseudoElement(Element& host, PseudoId pseudoId)
: Element(pseudoElementTagName(), host.document(), CreatePseudoElement)
, m_hostElement(&host)
, m_pseudoId(pseudoId)
{
ASSERT(pseudoId == BEFORE || pseudoId == AFTER);
setHasCustomStyleResolveCallbacks();
}
PseudoElement::~PseudoElement()
{
ASSERT(!m_hostElement);
InspectorInstrumentation::pseudoElementDestroyed(document().page(), this);
}
PassRefPtr<RenderStyle> PseudoElement::customStyleForRenderer(RenderStyle& parentStyle)
{
return m_hostElement->renderer()->getCachedPseudoStyle(m_pseudoId, &parentStyle);
}
void PseudoElement::didAttachRenderers()
{
RenderElement* renderer = this->renderer();
if (!renderer || renderer->style().hasFlowFrom())
return;
const RenderStyle& style = renderer->style();
ASSERT(style.contentData());
for (const ContentData* content = style.contentData(); content; content = content->next()) {
auto child = content->createContentRenderer(document(), style);
if (renderer->isChildAllowed(*child, style)) {
auto* childPtr = child.get();
renderer->addChild(child.leakPtr());
if (childPtr->isQuote())
toRenderQuote(childPtr)->attachQuote();
}
}
}
bool PseudoElement::rendererIsNeeded(const RenderStyle& style)
{
return pseudoElementRendererIsNeeded(&style);
}
void PseudoElement::didRecalcStyle(Style::Change)
{
if (!renderer())
return;
// The renderers inside pseudo elements are anonymous so they don't get notified of recalcStyle and must have
// the style propagated downward manually similar to RenderObject::propagateStyleToAnonymousChildren.
RenderObject* renderer = this->renderer();
for (RenderObject* child = renderer->nextInPreOrder(renderer); child; child = child->nextInPreOrder(renderer)) {
// We only manage the style for the generated content which must be images or text.
if (!child->isRenderImage() && !child->isQuote())
continue;
PassRef<RenderStyle> createdStyle = RenderStyle::createStyleInheritingFromPseudoStyle(renderer->style());
toRenderElement(*child).setStyle(WTF::move(createdStyle));
}
}
} // namespace
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