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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 "NodeRenderingTraversal.h"
#include "ComposedShadowTreeWalker.h"
#include "PseudoElement.h"
namespace WebCore {
namespace NodeRenderingTraversal {
void ParentDetails::didTraverseInsertionPoint(InsertionPoint* insertionPoint)
{
if (!m_insertionPoint) {
m_insertionPoint = insertionPoint;
m_resetStyleInheritance = m_resetStyleInheritance || insertionPoint->resetStyleInheritance();
}
}
void ParentDetails::didTraverseShadowRoot(const ShadowRoot* root)
{
m_resetStyleInheritance = m_resetStyleInheritance || root->resetStyleInheritance();
}
ContainerNode* parentSlow(const Node* node, ParentDetails* details)
{
ComposedShadowTreeWalker walker(node, ComposedShadowTreeWalker::CrossUpperBoundary, ComposedShadowTreeWalker::CanStartFromShadowBoundary);
ContainerNode* found = toContainerNode(walker.traverseParent(walker.get(), details));
return details->outOfComposition() ? 0 : found;
}
Node* nextSiblingSlow(const Node* node)
{
ComposedShadowTreeWalker walker(node);
if (node->isBeforePseudoElement()) {
walker.parent();
walker.firstChild();
} else
walker.nextSibling();
if (walker.get() || node->isAfterPseudoElement())
return walker.get();
Node* parent = walker.traverseParent(node);
if (parent && parent->isElementNode())
return toElement(parent)->pseudoElement(AFTER);
return 0;
}
Node* previousSiblingSlow(const Node* node)
{
ComposedShadowTreeWalker walker(node);
if (node->isAfterPseudoElement()) {
walker.parent();
walker.lastChild();
} else
walker.previousSibling();
if (walker.get() || node->isBeforePseudoElement())
return walker.get();
Node* parent = walker.traverseParent(node);
if (parent && parent->isElementNode())
return toElement(parent)->pseudoElement(BEFORE);
return 0;
}
Node* nextInScope(const Node* node)
{
// FIXME: ComposedShadowTreeWalker shouldn't be used when !ENABLE(SHADOW_DOM) https://bugs.webkit.org/show_bug.cgi?id=103339
ComposedShadowTreeWalker walker = ComposedShadowTreeWalker(node, ComposedShadowTreeWalker::DoNotCrossUpperBoundary);
walker.next();
return walker.get();
}
Node* previousInScope(const Node* node)
{
// FIXME: ComposedShadowTreeWalker shouldn't be used when !ENABLE(SHADOW_DOM) https://bugs.webkit.org/show_bug.cgi?id=103339
ComposedShadowTreeWalker walker = ComposedShadowTreeWalker(node, ComposedShadowTreeWalker::DoNotCrossUpperBoundary);
walker.previous();
return walker.get();
}
Node* parentInScope(const Node* node)
{
// FIXME: ComposedShadowTreeWalker shouldn't be used when !ENABLE(SHADOW_DOM) https://bugs.webkit.org/show_bug.cgi?id=103339
ComposedShadowTreeWalker walker = ComposedShadowTreeWalker(node, ComposedShadowTreeWalker::DoNotCrossUpperBoundary);
walker.parent();
return walker.get();
}
Node* lastChildInScope(const Node* node)
{
// FIXME: ComposedShadowTreeWalker shouldn't be used when !ENABLE(SHADOW_DOM) https://bugs.webkit.org/show_bug.cgi?id=103339
ComposedShadowTreeWalker walker = ComposedShadowTreeWalker(node, ComposedShadowTreeWalker::DoNotCrossUpperBoundary);
walker.lastChild();
return walker.get();
}
}
} // namespace
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