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/*
* Copyright (C) 2016 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#pragma once
#include "RenderTreePosition.h"
#include "StyleChange.h"
#include "StyleUpdate.h"
#include <wtf/HashSet.h>
#include <wtf/Vector.h>
namespace WebCore {
class ContainerNode;
class Document;
class Element;
class Node;
class RenderQuote;
class RenderStyle;
class Text;
class RenderTreeUpdater {
public:
RenderTreeUpdater(Document&);
void commit(std::unique_ptr<const Style::Update>);
enum class TeardownType { Normal, KeepHoverAndActive };
static void tearDownRenderers(Element&, TeardownType = TeardownType::Normal);
static void tearDownRenderer(Text&);
class FirstLetter;
class ListItem;
private:
void updateRenderTree(ContainerNode& root);
void updateTextRenderer(Text&, const Style::TextUpdate*);
void updateElementRenderer(Element&, const Style::ElementUpdate&);
void createRenderer(Element&, RenderStyle&&);
void invalidateWhitespaceOnlyTextSiblingsAfterAttachIfNeeded(Node&);
void updateBeforeDescendants(Element&);
void updateAfterDescendants(Element&, Style::Change);
void updateBeforeOrAfterPseudoElement(Element&, PseudoId);
struct Parent {
Element* element { nullptr };
Style::Change styleChange { Style::NoChange };
std::optional<RenderTreePosition> renderTreePosition;
Parent(ContainerNode& root);
Parent(Element&, Style::Change);
};
Parent& parent() { return m_parentStack.last(); }
RenderTreePosition& renderTreePosition();
void pushParent(Element&, Style::Change);
void popParent();
void popParentsToDepth(unsigned depth);
void updateQuotesUpTo(RenderQuote*);
Document& m_document;
std::unique_ptr<const Style::Update> m_styleUpdate;
Vector<Parent> m_parentStack;
HashSet<Text*> m_invalidatedWhitespaceOnlyTextSiblings;
RenderQuote* m_previousUpdatedQuote { nullptr };
};
} // namespace WebCore
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