Source/WebCore/layout/layouttree/LayoutReplacedBox.cpp

/*
 * Copyright (C) 2018-2020 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
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 */

#include "config.h"
#include "LayoutReplacedBox.h"

#if ENABLE(LAYOUT_FORMATTING_CONTEXT)

#include "RenderStyle.h"
#include <wtf/IsoMallocInlines.h>

namespace WebCore {
namespace Layout {

WTF_MAKE_ISO_ALLOCATED_IMPL(ReplacedBox);

ReplacedBox::ReplacedBox(std::optional<ElementAttributes> elementAttributes, RenderStyle&& style, std::unique_ptr<RenderStyle>&& firstLineStyle)
    : Box(elementAttributes, WTFMove(style), WTFMove(firstLineStyle), Box::ReplacedBoxFlag)
{
}

bool ReplacedBox::hasIntrinsicWidth() const
{
    return m_intrinsicSize || style().logicalWidth().isIntrinsic();
}

bool ReplacedBox::hasIntrinsicHeight() const
{
    return m_intrinsicSize || style().logicalHeight().isIntrinsic();
}

bool ReplacedBox::hasIntrinsicRatio() const
{
    if (!hasAspectRatio())
        return false;
    return m_intrinsicSize || m_intrinsicRatio;
}

LayoutUnit ReplacedBox::intrinsicWidth() const
{
    ASSERT(hasIntrinsicWidth());
    if (m_intrinsicSize)
        return m_intrinsicSize->width();
    return LayoutUnit { style().logicalWidth().value() };
}

LayoutUnit ReplacedBox::intrinsicHeight() const
{
    ASSERT(hasIntrinsicHeight());
    if (m_intrinsicSize)
        return m_intrinsicSize->height();
    return LayoutUnit { style().logicalHeight().value() };
}

LayoutUnit ReplacedBox::intrinsicRatio() const
{
    ASSERT(hasIntrinsicRatio() || (hasIntrinsicWidth() && hasIntrinsicHeight()));
    if (m_intrinsicRatio)
        return *m_intrinsicRatio;
    if (m_intrinsicSize && m_intrinsicSize->height())
        return m_intrinsicSize->width() / m_intrinsicSize->height();
    return 1;
}

bool ReplacedBox::hasAspectRatio() const
{
    return isImage();
}

}
}
#endif