Source/WebCore/display/css/DisplayBox.cpp

/*
 * Copyright (C) 2020 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.
 */

#include "config.h"
#include "DisplayBox.h"

#if ENABLE(LAYOUT_FORMATTING_CONTEXT)

#include "DisplayTree.h"
#include "FillLayer.h"
#include "ShadowData.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/text/TextStream.h>

namespace WebCore {
namespace Display {

DEFINE_ALLOCATOR_WITH_HEAP_IDENTIFIER(Box);

Box::Box(Tree& tree, UnadjustedAbsoluteFloatRect absoluteRect, Style&& displayStyle, OptionSet<TypeFlags> flags)
    : m_tree(tree)
    , m_absoluteBoxRect(absoluteRect)
    , m_style(WTFMove(displayStyle))
    , m_typeFlags(flags)
{
}

Box::~Box() = default;

void Box::setNextSibling(std::unique_ptr<Box>&& box)
{
    m_nextSibling = WTFMove(box);
}

bool Box::participatesInZOrderSorting() const
{
    return !isLineBreakBox() && style().participatesInZOrderSorting();
}

void Box::setNeedsDisplay(std::optional<UnadjustedAbsoluteFloatRect> subrect)
{
    m_tree.setBoxNeedsDisplay(*this, subrect);
}

const char* Box::boxName() const
{
    return "box";
}

String Box::debugDescription() const
{
    TextStream stream;
    stream << boxName() << " " << absoluteBoxRect() << " (" << this << ")";
    return stream.release();
}

} // namespace Display
} // namespace WebCore

#endif // ENABLE(LAYOUT_FORMATTING_CONTEXT)