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/**
* Copyright (C) 2021-2023 Apple Inc. All rights reserved.
* Copyright (C) 2025 Samuel Weinig <sam@webkit.org>
*
* 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 "CSSPrimitiveKeywordList.h"
#include "InlineLevelBox.h"
#include "RenderStyleInlines.h"
namespace WebCore {
namespace Layout {
template<typename PreferredLineHeightFunctor> InlineLevelBox::VerticalAlignment toInlineBoxLevelVerticalAlign(const Style::VerticalAlign& verticalAlign, NOESCAPE PreferredLineHeightFunctor&& preferredLineHeightFunctor)
{
return WTF::switchOn(verticalAlign,
[](CSS::PrimitiveKeyword auto const& keyword) -> InlineLevelBox::VerticalAlignment {
return keyword;
},
[&](const Style::VerticalAlign::Length& length) -> InlineLevelBox::VerticalAlignment {
return InlineLayoutUnit { Style::evaluate(length, std::forward<PreferredLineHeightFunctor>(preferredLineHeightFunctor)) };
}
);
}
inline InlineLevelBox::InlineLevelBox(const Box& layoutBox, const RenderStyle& style, InlineLayoutUnit logicalLeft, InlineLayoutSize logicalSize, Type type, OptionSet<PositionWithinLayoutBox> positionWithinLayoutBox)
: m_layoutBox(layoutBox)
, m_logicalRect({ }, logicalLeft, logicalSize.width(), logicalSize.height())
, m_hasContent(layoutBox.isRubyBase() && layoutBox.associatedRubyAnnotationBox()) // Normally we set inline box's has-content state as we come across child content, but ruby annotations are not visible to inline layout.
, m_isFirstWithinLayoutBox(positionWithinLayoutBox.contains(PositionWithinLayoutBox::First))
, m_isLastWithinLayoutBox(positionWithinLayoutBox.contains(PositionWithinLayoutBox::Last))
, m_type(type)
, m_style({ style.fontCascade().metricsOfPrimaryFont(), style.lineHeight(), style.textBoxTrim(), style.textBoxEdge(), style.lineFitEdge(), style.lineBoxContain(), InlineLayoutUnit(style.fontCascade().fontDescription().computedSize()), toInlineBoxLevelVerticalAlign(style.verticalAlign(), [this] { return preferredLineHeight(); }) })
{
}
inline InlineLevelBox InlineLevelBox::createAtomicInlineBox(const Box& layoutBox, const RenderStyle& style, InlineLayoutUnit logicalLeft, InlineLayoutUnit logicalWidth)
{
return { layoutBox, style, logicalLeft, { logicalWidth, { } }, Type::AtomicInlineBox };
}
inline InlineLevelBox InlineLevelBox::createGenericInlineLevelBox(const Box& layoutBox, const RenderStyle& style, InlineLayoutUnit logicalLeft)
{
return { layoutBox, style, logicalLeft, { }, Type::GenericInlineLevelBox };
}
inline InlineLevelBox InlineLevelBox::createInlineBox(const Box& layoutBox, const RenderStyle& style, InlineLayoutUnit logicalLeft, InlineLayoutUnit logicalWidth, LineSpanningInlineBox isLineSpanning)
{
return { layoutBox, style, logicalLeft, { logicalWidth, { } }, isLineSpanning == LineSpanningInlineBox::Yes ? Type::LineSpanningInlineBox : Type::InlineBox, { } };
}
inline InlineLevelBox InlineLevelBox::createLineBreakBox(const Box& layoutBox, const RenderStyle& style, InlineLayoutUnit logicalLeft)
{
return { layoutBox, style, logicalLeft, { }, Type::LineBreakBox };
}
inline InlineLevelBox InlineLevelBox::createRootInlineBox(const Box& layoutBox, const RenderStyle& style, InlineLayoutUnit logicalLeft, InlineLayoutUnit logicalWidth)
{
return { layoutBox, style, logicalLeft, { logicalWidth, { } }, Type::RootInlineBox, { } };
}
inline bool InlineLevelBox::mayStretchLineBox() const
{
if (isRootInlineBox())
return m_style.lineBoxContain.containsAny({ WebCore::Style::LineBoxContain::Block, WebCore::Style::LineBoxContain::Inline }) || (hasContent() && m_style.lineBoxContain.containsAny({ WebCore::Style::LineBoxContain::InitialLetter, WebCore::Style::LineBoxContain::Font, WebCore::Style::LineBoxContain::Glyphs }));
if (isAtomicInlineBox())
return m_style.lineBoxContain.contains(WebCore::Style::LineBoxContain::Replaced);
if (isInlineBox()) {
// Either the inline box itself is included or its text content through Glyph and Font.
return m_style.lineBoxContain.containsAny({ WebCore::Style::LineBoxContain::Inline, WebCore::Style::LineBoxContain::InlineBox }) || (hasContent() && m_style.lineBoxContain.containsAny({ WebCore::Style::LineBoxContain::Font, WebCore::Style::LineBoxContain::Glyphs }));
}
if (isLineBreakBox())
return m_style.lineBoxContain.containsAny({ WebCore::Style::LineBoxContain::Inline, WebCore::Style::LineBoxContain::InlineBox }) || (hasContent() && m_style.lineBoxContain.containsAny({ WebCore::Style::LineBoxContain::Font, WebCore::Style::LineBoxContain::Glyphs }));
return true;
}
inline void InlineLevelBox::setTextEmphasis(std::pair<InlineLayoutUnit, InlineLayoutUnit> textEmphasis)
{
if (!textEmphasis.first && !textEmphasis.second)
return;
if (textEmphasis.first) {
m_textEmphasis = TextEmphasis { textEmphasis.first, 0.f };
return;
}
m_textEmphasis = TextEmphasis { 0.f, textEmphasis.second };
}
}
}
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