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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
#include "LayoutInitialContainingBlock.h"
#include <wtf/HashMap.h>
#include <wtf/UniqueRef.h>
#include <wtf/Vector.h>
namespace WebCore {
class RenderBlock;
class RenderBoxModelObject;
class RenderElement;
class RenderObject;
class RenderInline;
class RenderText;
namespace LayoutIntegration {
#if ENABLE(TREE_DEBUGGING)
struct InlineContent;
#endif
class BoxTree {
public:
BoxTree(RenderBlock&);
~BoxTree();
void updateStyle(const RenderBoxModelObject&);
void updateContent(const RenderText&);
const Layout::Box& insert(const RenderElement& parent, RenderObject& child, const RenderObject* beforeChild = nullptr);
UniqueRef<Layout::Box> remove(const RenderElement& parent, RenderObject& child);
const RenderBlock& rootRenderer() const { return m_rootRenderer; }
RenderBlock& rootRenderer() { return m_rootRenderer; }
const Layout::ElementBox& rootLayoutBox() const;
Layout::ElementBox& rootLayoutBox();
const Layout::Box& layoutBoxForRenderer(const RenderObject&) const;
Layout::Box& layoutBoxForRenderer(const RenderObject&);
const Layout::ElementBox& layoutBoxForRenderer(const RenderElement&) const;
Layout::ElementBox& layoutBoxForRenderer(const RenderElement&);
const RenderObject& rendererForLayoutBox(const Layout::Box&) const;
RenderObject& rendererForLayoutBox(const Layout::Box&);
size_t boxCount() const { return m_renderers.size(); }
const auto& renderers() const { return m_renderers; }
private:
Layout::InitialContainingBlock& initialContainingBlock();
static UniqueRef<Layout::Box> createLayoutBox(RenderObject&);
static void adjustStyleIfNeeded(const RenderElement&, RenderStyle&, RenderStyle* firstLineStyle);
void buildTreeForInlineContent();
void buildTreeForFlexContent();
void insertChild(UniqueRef<Layout::Box>, RenderObject&, const RenderObject* beforeChild = nullptr);
RenderBlock& m_rootRenderer;
Vector<WeakPtr<RenderObject>, 1> m_renderers;
HashMap<CheckedRef<const Layout::Box>, WeakPtr<RenderObject>> m_boxToRendererMap;
};
#if ENABLE(TREE_DEBUGGING)
void showInlineContent(TextStream&, const InlineContent&, size_t depth);
#endif
}
}
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