LibWeb: Parse and propagate extended text-indent property values

CSS Text 3 gives `text-indent` a couple of optional keywords to control
which lines are affected. This commit parses them, but doesn't yet do
anything with them.
This commit is contained in:
Sam Atkins 2025-11-18 10:53:25 +00:00 committed by Jelle Raaijmakers
parent eea1d4e1d2
commit c4b9e7eadf
Notes: github-actions[bot] 2025-11-20 15:03:53 +00:00
16 changed files with 199 additions and 9 deletions

View file

@ -0,0 +1,54 @@
/*
* Copyright (c) 2025, Sam Atkins <sam@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "TextIndentStyleValue.h"
namespace Web::CSS {
ValueComparingNonnullRefPtr<TextIndentStyleValue const> TextIndentStyleValue::create(NonnullRefPtr<StyleValue const> length_percentage, Hanging hanging, EachLine each_line)
{
return adopt_ref(*new (nothrow) TextIndentStyleValue(move(length_percentage), hanging, each_line));
}
TextIndentStyleValue::TextIndentStyleValue(NonnullRefPtr<StyleValue const> length_percentage, Hanging hanging, EachLine each_line)
: StyleValueWithDefaultOperators(Type::TextIndent)
, m_length_percentage(move(length_percentage))
, m_hanging(hanging == Hanging::Yes)
, m_each_line(each_line == EachLine::Yes)
{
}
TextIndentStyleValue::~TextIndentStyleValue() = default;
String TextIndentStyleValue::to_string(SerializationMode mode) const
{
StringBuilder builder;
builder.append(m_length_percentage->to_string(mode));
if (m_each_line)
builder.append(" each-line"sv);
if (m_hanging)
builder.append(" hanging"sv);
return builder.to_string_without_validation();
}
ValueComparingNonnullRefPtr<StyleValue const> TextIndentStyleValue::absolutized(ComputationContext const& context) const
{
auto new_length_percentage = m_length_percentage->absolutized(context);
if (new_length_percentage->equals(m_length_percentage))
return *this;
return create(move(new_length_percentage),
m_hanging ? Hanging::Yes : Hanging::No,
m_each_line ? EachLine::Yes : EachLine::No);
}
bool TextIndentStyleValue::properties_equal(TextIndentStyleValue const& other) const
{
return m_length_percentage == other.m_length_percentage
&& m_each_line == other.m_each_line
&& m_hanging == other.m_hanging;
}
}