Source/core/rendering/RenderBlockFlow.h

/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
 *           (C) 2007 David Smith (catfish.man@gmail.com)
 * Copyright (C) 2003-2013 Apple Inc. All rights reserved.
 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
 * Copyright (C) 2013 Google 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * 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
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * 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
 * "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 THE COPYRIGHT
 * OWNER OR 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.
 */

#ifndef RenderBlockFlow_h
#define RenderBlockFlow_h

#include "RenderBlock.h"

namespace WebCore {

class RenderBlockFlow : public RenderBlock {
public:
    explicit RenderBlockFlow(ContainerNode*);
    virtual ~RenderBlockFlow();

    virtual bool isRenderBlockFlow() const OVERRIDE FINAL { return true; }

    virtual void layoutBlock(bool relayoutChildren, LayoutUnit pageLogicalHeight = 0) OVERRIDE;
protected:
    // Only used by RenderSVGText, which explicitly overrides RenderBlock::layoutBlock(), do NOT use for anything else.
    void forceLayoutInlineChildren()
    {
        LayoutUnit repaintLogicalTop = 0;
        LayoutUnit repaintLogicalBottom = 0;
        clearFloats();
        layoutInlineChildren(true, repaintLogicalTop, repaintLogicalBottom);
    }

private:
    void layoutBlockChildren(bool relayoutChildren, LayoutUnit& maxFloatLogicalBottom, SubtreeLayoutScope&);
    void layoutInlineChildren(bool relayoutChildren, LayoutUnit& repaintLogicalTop, LayoutUnit& repaintLogicalBottom);

    void clearFloats();
};

inline RenderBlockFlow& toRenderBlockFlow(RenderObject& object)
{
    ASSERT_WITH_SECURITY_IMPLICATION(object.isRenderBlockFlow());
    return static_cast<RenderBlockFlow&>(object);
}

inline const RenderBlockFlow& toRenderBlockFlow(const RenderObject& object)
{
    ASSERT_WITH_SECURITY_IMPLICATION(object.isRenderBlockFlow());
    return static_cast<const RenderBlockFlow&>(object);
}

inline RenderBlockFlow* toRenderBlockFlow(RenderObject* object)
{
    ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isRenderBlockFlow());
    return static_cast<RenderBlockFlow*>(object);
}

inline const RenderBlockFlow* toRenderBlockFlow(const RenderObject* object)
{
    ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isRenderBlockFlow());
    return static_cast<const RenderBlockFlow*>(object);
}

// This will catch anyone doing an unnecessary cast.
void toRenderBlockFlow(const RenderBlockFlow*);
void toRenderBlockFlow(const RenderBlockFlow&);

} // namespace WebCore

#endif // RenderBlockFlow_h