RenderRubyBase.h   [plain text]

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#pragma once

#include "RenderBlockFlow.h"

namespace WebCore {

class RenderRubyRun;

class RenderRubyBase final : public RenderBlockFlow {
public:
    RenderRubyBase(Document&, RenderStyle&&);
    virtual ~RenderRubyBase();
    
    const char* renderName() const override { return "RenderRubyBase (anonymous)"; }
    
    RenderRubyRun* rubyRun() const;

    void setIsAfterExpansion(bool isAfterExpansion) { m_isAfterExpansion = isAfterExpansion; }
    bool isAfterExpansion() { return m_isAfterExpansion; }

    void setInitialOffset(float initialOffset) { m_initialOffset = initialOffset; }

    void reset()
    {
        m_initialOffset = 0;
        m_isAfterExpansion = true;
    }
    
    void cachePriorCharactersIfNeeded(const LazyLineBreakIterator&) override;

private:
    bool isRubyBase() const override { return true; }
    bool isChildAllowed(const RenderObject&, const RenderStyle&) const override;
    ETextAlign textAlignmentForLine(bool endsWithSoftBreak) const override;
    void adjustInlineDirectionLineBounds(int expansionOpportunityCount, float& logicalLeft, float& logicalWidth) const override;
    void mergeChildrenWithBase(RenderRubyBase& toBlock);

    void moveChildren(RenderRubyBase* toBase, RenderObject* beforeChild = 0);
    void moveInlineChildren(RenderRubyBase* toBase, RenderObject* beforeChild = 0);
    void moveBlockChildren(RenderRubyBase* toBase, RenderObject* beforeChild = 0);

    // Allow RenderRubyRun to manipulate the children within ruby bases.
    friend class RenderRubyRun;

    float m_initialOffset;
    unsigned m_isAfterExpansion : 1;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderRubyBase, isRubyBase())