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LibWeb: Coerce NaNs to 0 when escaping top-level calculations

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This commit is contained in:
Jelle Raaijmakers 2025-03-25 18:58:08 +00:00 • committed by Sam Atkins
commit 6a3c3ee291
Notes: github-actions[bot] 2025-03-25 19:54:37 +00:00
3 changed files with 12 additions and 3 deletions
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13
Libraries/LibWeb/CSS/StyleValues/CalculatedStyleValue.cpp
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@ -2716,9 +2716,16 @@ Optional<Time> CalculatedStyleValue::resolve_time(CalculationResolutionContext c
Optional<double> CalculatedStyleValue::resolve_number(CalculationResolutionContext const& context) const
{
auto result = m_calculation->resolve(context);
if (result.type().has_value() && result.type()->matches_number(m_context.percentages_resolve_as))
return result.value();
return {};
if (!result.type().has_value() || !result.type()->matches_number(m_context.percentages_resolve_as))
return {};
// https://drafts.csswg.org/css-values/#calc-ieee
// NaN does not escape a top-level calculation; it’s censored into a zero value.
auto value = result.value();
if (isnan(value))
return 0.;
return value;
}
Optional<i64> CalculatedStyleValue::resolve_integer(CalculationResolutionContext const& context) const