100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
/*
|
|
* 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 "Node.h"
|
|
#include "StyleChange.h"
|
|
#include <wtf/HashMap.h>
|
|
#include <wtf/ListHashSet.h>
|
|
|
|
namespace WebCore {
|
|
|
|
class ContainerNode;
|
|
class Document;
|
|
class Element;
|
|
class Node;
|
|
class RenderStyle;
|
|
class Text;
|
|
|
|
namespace Style {
|
|
|
|
struct ElementUpdate {
|
|
std::unique_ptr<RenderStyle> style;
|
|
Change change { Change::None };
|
|
bool recompositeLayer { false };
|
|
};
|
|
|
|
enum class DescendantsToResolve { None, ChildrenWithExplicitInherit, Children, All };
|
|
|
|
using PseudoIdToElementUpdateMap = HashMap<PseudoId, ElementUpdate, WTF::IntHash<PseudoId>, WTF::StrongEnumHashTraits<PseudoId>>;
|
|
|
|
struct ElementUpdates {
|
|
ElementUpdate update;
|
|
DescendantsToResolve descendantsToResolve { DescendantsToResolve::None };
|
|
PseudoIdToElementUpdateMap pseudoElementUpdates;
|
|
};
|
|
|
|
struct TextUpdate {
|
|
unsigned offset { 0 };
|
|
unsigned length { std::numeric_limits<unsigned>::max() };
|
|
std::optional<std::unique_ptr<RenderStyle>> inheritedDisplayContentsStyle;
|
|
};
|
|
|
|
class Update {
|
|
WTF_MAKE_FAST_ALLOCATED;
|
|
public:
|
|
Update(Document&);
|
|
|
|
const ListHashSet<RefPtr<ContainerNode>>& roots() const { return m_roots; }
|
|
|
|
const ElementUpdates* elementUpdates(const Element&) const;
|
|
ElementUpdates* elementUpdates(const Element&);
|
|
|
|
const TextUpdate* textUpdate(const Text&) const;
|
|
|
|
const RenderStyle* elementStyle(const Element&) const;
|
|
RenderStyle* elementStyle(const Element&);
|
|
|
|
const Document& document() const { return m_document; }
|
|
|
|
unsigned size() const { return m_elements.size() + m_texts.size(); }
|
|
|
|
void addElement(Element&, Element* parent, ElementUpdates&&);
|
|
void addText(Text&, Element* parent, TextUpdate&&);
|
|
void addText(Text&, TextUpdate&&);
|
|
|
|
private:
|
|
void addPossibleRoot(Element*);
|
|
|
|
Ref<Document> m_document;
|
|
ListHashSet<RefPtr<ContainerNode>> m_roots;
|
|
HashMap<RefPtr<const Element>, ElementUpdates> m_elements;
|
|
HashMap<RefPtr<const Text>, TextUpdate> m_texts;
|
|
};
|
|
|
|
}
|
|
}
|