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LibWeb: Implement the math-depth CSS property

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This one is a bit fun because it can be `add(<integer>)` or `auto-add`,
but children have to inherit the computed value not the specified one.
We also have to compute it before computing the font-size, because of
`font-size: math` which will be implemented later.
This commit is contained in:
Sam Atkins 2023-09-07 15:29:54 +01:00 • committed by Sam Atkins
parent 53f3ed026a
commit 6476dea898
19 changed files with 285 additions and 11 deletions
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52
Userland/Libraries/LibWeb/CSS/StyleValues/MathDepthStyleValue.cpp Normal file
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/*
* Copyright (c) 2023, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "MathDepthStyleValue.h"
namespace Web::CSS {
ValueComparingNonnullRefPtr<MathDepthStyleValue> MathDepthStyleValue::create_auto_add()
{
return adopt_ref(*new (nothrow) MathDepthStyleValue(MathDepthType::AutoAdd));
}
ValueComparingNonnullRefPtr<MathDepthStyleValue> MathDepthStyleValue::create_add(ValueComparingNonnullRefPtr<StyleValue const> integer_value)
{
return adopt_ref(*new (nothrow) MathDepthStyleValue(MathDepthType::Add, move(integer_value)));
}
ValueComparingNonnullRefPtr<MathDepthStyleValue> MathDepthStyleValue::create_integer(ValueComparingNonnullRefPtr<StyleValue const> integer_value)
{
return adopt_ref(*new (nothrow) MathDepthStyleValue(MathDepthType::Integer, move(integer_value)));
}
MathDepthStyleValue::MathDepthStyleValue(MathDepthType type, ValueComparingRefPtr<StyleValue const> integer_value)
: StyleValueWithDefaultOperators(Type::MathDepth)
, m_type(type)
, m_integer_value(move(integer_value))
{
}
bool MathDepthStyleValue::properties_equal(MathDepthStyleValue const& other) const
{
return m_type == other.m_type
&& m_integer_value == other.m_integer_value;
}
String MathDepthStyleValue::to_string() const
{
switch (m_type) {
case MathDepthType::AutoAdd:
return "auto-add"_string;
case MathDepthType::Add:
return MUST(String::formatted("add({})", m_integer_value->to_string()));
case MathDepthType::Integer:
return m_integer_value->to_string();
}
VERIFY_NOT_REACHED();
}
}