/*
* Copyright (C) 2020 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
#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
#include "DisplayGeometryTypes.h"
#include <wtf/IsoMalloc.h>
namespace WebCore {
namespace Display {
class Box;
class ContainerBox;
class StackingItem;
class View;
class Tree {
WTF_MAKE_FAST_ALLOCATED(Tree);
friend class TreeBuilder;
public:
Tree();
~Tree();
View* view() const { return m_view; }
void setView(View* view) { m_view = view; }
const StackingItem& rootStackingItem() const { return *m_rootStackingItem; }
const ContainerBox& rootBox() const;
void setBoxNeedsDisplay(Box&, std::optional<UnadjustedAbsoluteFloatRect> subrect = std::nullopt) const;
private:
void setRootStackingItem(std::unique_ptr<StackingItem>&&);
std::unique_ptr<StackingItem> m_rootStackingItem;
View* m_view { nullptr };
};
} // namespace Display
} // namespace WebCore
#endif // ENABLE(LAYOUT_FORMATTING_CONTEXT)
