WebCore/rendering/RenderRubyBase.cpp

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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#include "config.h"
#include "RenderRubyBase.h"

namespace WebCore {

RenderRubyBase::RenderRubyBase(Node* node)
    : RenderBlock(node)
{
    setInline(false);
}

RenderRubyBase::~RenderRubyBase()
{
}

bool RenderRubyBase::isChildAllowed(RenderObject* child, RenderStyle*) const
{
    return child->isInline();
}

void RenderRubyBase::splitToLeft(RenderBlock* leftBase, RenderObject* beforeChild)
{
    // This function removes all children that are before (!) beforeChild
    // and appends them to leftBase.
    ASSERT(leftBase);

    // First make sure that beforeChild (if set) is indeed a direct child of this.
    // Fallback: climb up the tree to make sure. This may result in somewhat incorrect rendering.
    // FIXME: Can this happen? Is there a better/more correct way to solve this?
    ASSERT(!beforeChild || beforeChild->parent() == this);
    while (beforeChild && beforeChild->parent() != this)
        beforeChild = beforeChild->parent();

    RenderObject* child = firstChild();
    while (child != beforeChild) {
        RenderObject* nextChild = child->nextSibling();
        moveChildTo(leftBase, leftBase->children(), child);
        child = nextChild;
    }
}

void RenderRubyBase::mergeWithRight(RenderBlock* rightBase)
{
    // This function removes all children and prepends (!) them to rightBase.
    ASSERT(rightBase);

    RenderObject* firstPos = rightBase->firstChild();
    RenderObject* child = lastChild();
    while (child) {
        moveChildTo(rightBase, rightBase->children(), firstPos, child);
        firstPos = child;
        child = lastChild();
    }
}

} // namespace WebCore