/*
 * Copyright (C) 2017 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 "RenderTreeBuilder.h"
#include <wtf/TZoneMalloc.h>

namespace WebCore {

class RenderBlockFlow;

class RenderTreeBuilder::Block {
    WTF_MAKE_TZONE_ALLOCATED(Block);
public:
    static RenderBlock* continuationBefore(RenderBlock& parent, RenderObject* beforeChild);

    Block(RenderTreeBuilder&);

    void attach(RenderBlock& parent, RenderPtr<RenderObject> child, RenderObject* beforeChild);
    void attachIgnoringContinuation(RenderBlock& parent, RenderPtr<RenderObject> child, RenderObject* beforeChild);

    [[nodiscard]] RenderPtr<RenderObject> detach(RenderBlock& parent, RenderObject& oldChild, RenderTreeBuilder::WillBeDestroyed, CanCollapseAnonymousBlock = CanCollapseAnonymousBlock::Yes);
    [[nodiscard]] RenderPtr<RenderObject> detach(RenderBlockFlow& parent, RenderObject& child, RenderTreeBuilder::WillBeDestroyed, CanCollapseAnonymousBlock = CanCollapseAnonymousBlock::Yes);

    void dropAnonymousBoxChild(RenderBlock& parent, RenderBlock& child);
    void childBecameNonInline(RenderBlock& parent, RenderElement& child);

    static RenderPtr<RenderBlockFlow> createAnonymousBlockWithStyle(Document&, const RenderStyle&);

private:
    void insertChildToContinuation(RenderBlock& parent, RenderPtr<RenderObject> child, RenderObject* beforeChild);
    void removeLeftoverAnonymousBlock(RenderBlock& anonymousBlock);

    RenderTreeBuilder& m_builder;
};

}

