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/*
* 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 "LayoutInitialContainingBlock.h"
#include <wtf/HashMap.h>
#include <wtf/UniqueRef.h>
#include <wtf/Vector.h>
namespace WebCore {
class RenderBlockFlow;
class RenderBoxModelObject;
namespace LayoutIntegration {
#if ENABLE(TREE_DEBUGGING)
struct InlineContent;
#endif
class BoxTree {
public:
BoxTree(RenderBlockFlow&);
void updateStyle(const RenderBoxModelObject&);
const RenderBlockFlow& flow() const { return m_flow; }
RenderBlockFlow& flow() { return m_flow; }
const Layout::ContainerBox& rootLayoutBox() const { return m_root; }
Layout::ContainerBox& rootLayoutBox() { return m_root; }
const Layout::Box& layoutBoxForRenderer(const RenderObject&) const;
Layout::Box& layoutBoxForRenderer(const RenderObject&);
const RenderObject& rendererForLayoutBox(const Layout::Box&) const;
RenderObject& rendererForLayoutBox(const Layout::Box&);
size_t boxCount() const { return m_boxes.size(); }
struct BoxAndRenderer {
CheckedRef<Layout::Box> box;
RenderObject* renderer { nullptr };
};
const auto& boxAndRendererList() const { return m_boxes; }
private:
void buildTree();
void appendChild(UniqueRef<Layout::Box>, RenderObject&);
RenderBlockFlow& m_flow;
Layout::ContainerBox m_root;
Vector<BoxAndRenderer, 1> m_boxes;
HashMap<const RenderObject*, CheckedRef<Layout::Box>> m_rendererToBoxMap;
HashMap<CheckedRef<const Layout::Box>, RenderObject*> m_boxToRendererMap;
};
#if ENABLE(TREE_DEBUGGING)
void showInlineContent(TextStream&, const InlineContent&, size_t depth);
#endif
}
}
#endif