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/*
* Copyright (C) 2018 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 "LayoutBox.h"
#include <wtf/TZoneMalloc.h>
#include <wtf/UniqueRef.h>
namespace WebCore {
class CachedImage;
class RenderElement;
class RenderStyle;
namespace Layout {
class ElementBox : public Box {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(ElementBox);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(ElementBox);
public:
ElementBox(ElementAttributes&&, RenderStyle&&, std::unique_ptr<RenderStyle>&& firstLineStyle = nullptr, OptionSet<BaseTypeFlag> = { ElementBoxFlag });
enum class ListMarkerAttribute : uint8_t {
Image = 1 << 0,
Outside = 1 << 1,
};
ElementBox(ElementAttributes&&, OptionSet<ListMarkerAttribute>, RenderStyle&&, std::unique_ptr<RenderStyle>&& firstLineStyle = nullptr);
struct ReplacedAttributes {
LayoutSize intrinsicSize;
std::optional<LayoutUnit> intrinsicRatio { };
CachedImage* cachedImage { };
};
ElementBox(ElementAttributes&&, ReplacedAttributes&&, RenderStyle&&, std::unique_ptr<RenderStyle>&& firstLineStyle = nullptr);
~ElementBox();
const Box* firstChild() const { return m_firstChild.get(); }
const Box* firstInFlowChild() const;
const Box* firstInFlowOrFloatingChild() const;
const Box* firstOutOfFlowChild() const;
const Box* lastChild() const { return m_lastChild.get(); }
const Box* lastInFlowChild() const;
const Box* lastInFlowOrFloatingChild() const;
const Box* lastOutOfFlowChild() const;
// FIXME: This is currently needed for style updates.
Box* firstChild() { return m_firstChild.get(); }
bool hasChild() const { return firstChild(); }
bool hasInFlowChild() const { return firstInFlowChild(); }
bool hasInFlowOrFloatingChild() const { return firstInFlowOrFloatingChild(); }
bool hasOutOfFlowChild() const;
void appendChild(UniqueRef<Box>);
void insertChild(UniqueRef<Box>, Box* beforeChild = nullptr);
void destroyChildren();
void setBaselineForIntegration(LayoutUnit baseline) { m_baselineForIntegration = baseline; }
std::optional<LayoutUnit> baselineForIntegration() const { return m_baselineForIntegration; }
bool hasIntrinsicWidth() const;
bool hasIntrinsicHeight() const;
bool hasIntrinsicRatio() const;
LayoutUnit intrinsicWidth() const;
LayoutUnit intrinsicHeight() const;
LayoutUnit intrinsicRatio() const;
bool hasAspectRatio() const;
void setListMarkerAttributes(OptionSet<ListMarkerAttribute> listMarkerAttributes) { m_replacedData->listMarkerAttributes = listMarkerAttributes; }
bool isListMarkerImage() const { return m_replacedData && m_replacedData->listMarkerAttributes.contains(ListMarkerAttribute::Image); }
bool isListMarkerOutside() const { return m_replacedData && m_replacedData->listMarkerAttributes.contains(ListMarkerAttribute::Outside); }
// FIXME: This is temporary until after list marker content is accessible by IFC (webkit.org/b/294342)
void setListMarkerLayoutBounds(std::pair<int, int> layoutBounds) { m_replacedData->layoutBounds = layoutBounds; }
std::pair<int, int> layoutBoundsForListMarker() const { return m_replacedData ? m_replacedData->layoutBounds : std::pair<int, int>(); }
// FIXME: This doesn't belong.
CachedImage* cachedImage() const { return m_replacedData ? m_replacedData->cachedImage : nullptr; }
RenderElement* rendererForIntegration() const;
private:
friend class Box;
struct ReplacedData {
WTF_DEPRECATED_MAKE_STRUCT_FAST_ALLOCATED(ReplacedData);
OptionSet<ListMarkerAttribute> listMarkerAttributes;
std::pair<int, int> layoutBounds;
std::optional<LayoutSize> intrinsicSize;
std::optional<LayoutUnit> intrinsicRatio;
CachedImage* cachedImage { nullptr };
};
std::unique_ptr<Box> m_firstChild;
CheckedPtr<Box> m_lastChild;
std::unique_ptr<ReplacedData> m_replacedData;
std::optional<LayoutUnit> m_baselineForIntegration;
};
}
}
SPECIALIZE_TYPE_TRAITS_LAYOUT_BOX(ElementBox, isElementBox())
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