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LibWeb/CSS: Make font implicitly reset some properties

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This is a weird behaviour specific to `font` - it can reset some
properties that it never actually sets. As such, it didn't seem worth
adding this concept to the code generator, but just manually stuffing
the ShorthandStyleValue with them during parsing.
This commit is contained in:
Sam Atkins 2025-02-05 15:48:12 +00:00
commit 531b92d467
Notes: github-actions[bot] 2025-02-12 16:02:36 +00:00
3 changed files with 115 additions and 2 deletions
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55
Libraries/LibWeb/CSS/Parser/PropertyParsing.cpp
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@ -2344,9 +2344,60 @@ RefPtr<CSSStyleValue> Parser::parse_font_value(TokenStream<ComponentValue>& toke
line_height = property_initial_value(PropertyID::LineHeight);
transaction.commit();
auto initial_value = CSSKeywordValue::create(Keyword::Initial);
return ShorthandStyleValue::create(PropertyID::Font,
{ PropertyID::FontStyle, PropertyID::FontVariant, PropertyID::FontWeight, PropertyID::FontWidth, PropertyID::FontSize, PropertyID::LineHeight, PropertyID::FontFamily },
{ font_style.release_nonnull(), font_variant.release_nonnull(), font_weight.release_nonnull(), font_width.release_nonnull(), font_size.release_nonnull(), line_height.release_nonnull(), font_families.release_nonnull() });
{
// Set explicitly https://drafts.csswg.org/css-fonts/#set-explicitly
PropertyID::FontFamily,
PropertyID::FontSize,
PropertyID::FontWidth,
// FIXME: PropertyID::FontStretch
PropertyID::FontStyle,
PropertyID::FontVariant,
PropertyID::FontWeight,
PropertyID::LineHeight,
// Reset implicitly https://drafts.csswg.org/css-fonts/#reset-implicitly
PropertyID::FontFeatureSettings,
// FIXME: PropertyID::FontKerning,
PropertyID::FontLanguageOverride,
// FIXME: PropertyID::FontOpticalSizing,
// FIXME: PropertyID::FontSizeAdjust,
PropertyID::FontVariantAlternates,
PropertyID::FontVariantCaps,
PropertyID::FontVariantEastAsian,
PropertyID::FontVariantEmoji,
PropertyID::FontVariantLigatures,
PropertyID::FontVariantNumeric,
PropertyID::FontVariantPosition,
PropertyID::FontVariationSettings,
},
{
// Set explicitly
font_families.release_nonnull(),
font_size.release_nonnull(),
font_width.release_nonnull(),
// FIXME: font-stretch
font_style.release_nonnull(),
font_variant.release_nonnull(),
font_weight.release_nonnull(),
line_height.release_nonnull(),
// Reset implicitly
initial_value, // font-feature-settings
// FIXME: font-kerning,
initial_value, // font-language-override
// FIXME: font-optical-sizing,
// FIXME: font-size-adjust,
initial_value, // font-variant-alternates
initial_value, // font-variant-caps
initial_value, // font-variant-east-asian
initial_value, // font-variant-emoji
initial_value, // font-variant-ligatures
initial_value, // font-variant-numeric
initial_value, // font-variant-position
initial_value, // font-variation-settings
});
}
RefPtr<CSSStyleValue> Parser::parse_font_family_value(TokenStream<ComponentValue>& tokens)