Source/WebCore/rendering/RenderRubyBase.h

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * notice, this list of conditions and the following disclaimer.
 *     * 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
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 */

#ifndef RenderRubyBase_h
#define RenderRubyBase_h

#include "RenderBlock.h"

namespace WebCore {

class RenderRubyRun;

class RenderRubyBase : public RenderBlock {
public:
    RenderRubyBase(Node*);
    virtual ~RenderRubyBase();

    virtual const char* renderName() const { return "RenderRubyBase (anonymous)"; }

    virtual bool isRubyBase() const { return true; }

    virtual bool isChildAllowed(RenderObject*, RenderStyle*) const;

private:
    virtual ETextAlign textAlignmentForLine(bool endsWithSoftBreak) const;
    virtual void adjustInlineDirectionLineBounds(int expansionOpportunityCount, float& logicalLeft, float& logicalWidth) const;

    bool hasOnlyWrappedInlineChildren(RenderObject* beforeChild = 0) const;

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

    RenderRubyRun* rubyRun() const;

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

} // namespace WebCore

#endif // RenderRubyBase_h