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/**
* Copyright (C) 2021-2023 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 "InlineLevelBox.h"
#include "RenderStyleInlines.h"
namespace WebCore {
namespace Layout {
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_isFirstWithinLayoutBox(positionWithinLayoutBox.contains(PositionWithinLayoutBox::First))
, m_isLastWithinLayoutBox(positionWithinLayoutBox.contains(PositionWithinLayoutBox::Last))
, m_type(type)
, m_style({ style.fontCascade().metricsOfPrimaryFont(), style.lineHeight(), style.textBoxEdge(), style.textBoxTrim(), style.lineBoxContain(), InlineLayoutUnit(style.fontCascade().fontDescription().computedSize()), { } })
{
m_style.verticalAlignment.type = style.verticalAlign();
if (m_style.verticalAlignment.type == VerticalAlign::Length)
m_style.verticalAlignment.baselineOffset = floatValueForLength(style.verticalAlignLength(), preferredLineHeight());
auto setAnnotationIfApplicable = [&] {
if (auto* rubyAdjustments = layoutBox.rubyAdjustments()) {
m_annotation = { rubyAdjustments->annotationAbove, rubyAdjustments->annotationBelow };
return;
}
// Generic, non-inline box inline-level content (e.g. replaced elements) can't have text-emphasis annotations.
if (!isRootInlineBox() && !isInlineBox())
return;
auto hasTextEmphasis = style.textEmphasisMark() != TextEmphasisMark::None;
if (!hasTextEmphasis)
return;
auto emphasisPosition = style.textEmphasisPosition();
// Normally we resolve visual -> logical values at pre-layout time, but emphaisis values are not part of the general box geometry.
auto hasAboveTextEmphasis = false;
auto hasUnderTextEmphasis = false;
if (style.isHorizontalWritingMode()) {
hasAboveTextEmphasis = emphasisPosition.contains(TextEmphasisPosition::Over);
hasUnderTextEmphasis = !hasAboveTextEmphasis && emphasisPosition.contains(TextEmphasisPosition::Under);
} else {
hasAboveTextEmphasis = emphasisPosition.contains(TextEmphasisPosition::Right) || emphasisPosition == TextEmphasisPosition::Over;
hasUnderTextEmphasis = !hasAboveTextEmphasis && (emphasisPosition.contains(TextEmphasisPosition::Left) || emphasisPosition == TextEmphasisPosition::Under);
}
if (hasAboveTextEmphasis || hasUnderTextEmphasis) {
InlineLayoutUnit annotationSize = roundToInt(style.fontCascade().floatEmphasisMarkHeight(style.textEmphasisMarkString()));
m_annotation = { hasAboveTextEmphasis ? annotationSize : 0, hasAboveTextEmphasis ? 0 : annotationSize };
}
};
setAnnotationIfApplicable();
}
inline InlineLevelBox InlineLevelBox::createAtomicInlineLevelBox(const Box& layoutBox, const RenderStyle& style, InlineLayoutUnit logicalLeft, InlineLayoutUnit logicalWidth)
{
return { layoutBox, style, logicalLeft, { logicalWidth, { } }, Type::AtomicInlineLevelBox };
}
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({ LineBoxContain::Block, LineBoxContain::Inline }) || (hasContent() && m_style.lineBoxContain.containsAny({ LineBoxContain::InitialLetter, LineBoxContain::Font, LineBoxContain::Glyphs }));
if (isAtomicInlineLevelBox())
return m_style.lineBoxContain.contains(LineBoxContain::Replaced);
if (isInlineBox()) {
// Either the inline box itself is included or its text content thorugh Glyph and Font.
return m_style.lineBoxContain.containsAny({ LineBoxContain::Inline, LineBoxContain::InlineBox }) || (hasContent() && m_style.lineBoxContain.containsAny({ LineBoxContain::Font, LineBoxContain::Glyphs }));
}
if (isLineBreakBox())
return m_style.lineBoxContain.containsAny({ LineBoxContain::Inline, LineBoxContain::InlineBox }) || (hasContent() && m_style.lineBoxContain.containsAny({ LineBoxContain::Font, LineBoxContain::Glyphs }));
return true;
}
}
}
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