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Code Issues Projects Releases Packages Wiki Activity Actions 10

LibWeb/CSS: Store @property initial value as a style value

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For now, it's the "raw" UnresolvedStyleValue. Later, we'll need to try
to parse it into a "real" style value using the property's syntax.
This commit is contained in:
Sam Atkins 2025-04-07 11:54:51 +01:00
parent 9292b769ef
commit a80408fea6
Notes: github-actions[bot] 2025-04-08 09:00:42 +00:00
4 changed files with 24 additions and 19 deletions
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10
Libraries/LibWeb/CSS/Parser/DescriptorParsing.cpp
View file

@ -65,13 +65,11 @@ Parser::ParseErrorOr<NonnullRefPtr<CSSStyleValue>> Parser::parse_descriptor_valu
return parse_comma_separated_value_list(tokens, [this](auto& tokens) -> RefPtr<CSSStyleValue> {
return parse_font_source_value(tokens);
});
case DescriptorMetadata::ValueType::OptionalDeclarationValue: {
// FIXME: This is for an @property's initial value. Figure out what this should actually do once we need it.
StringBuilder initial_value_sb;
case DescriptorMetadata::ValueType::OptionalDeclarationValue:
// `component_values` already has what we want. Just skip through its tokens so code below knows we consumed them.
while (tokens.has_next_token())
initial_value_sb.append(tokens.consume_a_token().to_string());
return StringStyleValue::create(initial_value_sb.to_fly_string_without_validation());
}
tokens.discard_a_token();
return UnresolvedStyleValue::create(move(component_values), false, {});
case DescriptorMetadata::ValueType::PositivePercentage:
if (auto percentage_value = parse_percentage_value(tokens)) {
if (percentage_value->is_percentage()) {

9
Libraries/LibWeb/CSS/Parser/RuleParsing.cpp
View file

@ -535,7 +535,7 @@ GC::Ptr<CSSPropertyRule> Parser::convert_to_property_rule(AtRule const& rule)
Optional<FlyString> syntax_maybe;
Optional<bool> inherits_maybe;
Optional<String> initial_value_maybe;
RefPtr<CSSStyleValue> initial_value_maybe;
rule.for_each_as_declaration_list([&](auto& declaration) {
if (auto descriptor = convert_to_descriptor(AtRuleID::Property, declaration); descriptor.has_value()) {
@ -558,15 +558,16 @@ GC::Ptr<CSSPropertyRule> Parser::convert_to_property_rule(AtRule const& rule)
return;
}
if (descriptor->descriptor_id == DescriptorID::InitialValue) {
if (descriptor->value->is_string())
initial_value_maybe = descriptor->value->as_string().string_value().to_string();
initial_value_maybe = *descriptor->value;
return;
}
}
});
// TODO: Parse the initial value using the syntax, if it's provided.
if (syntax_maybe.has_value() && inherits_maybe.has_value()) {
return CSSPropertyRule::create(realm(), name, syntax_maybe.value(), inherits_maybe.value(), std::move(initial_value_maybe));
return CSSPropertyRule::create(realm(), name, syntax_maybe.value(), inherits_maybe.value(), move(initial_value_maybe));
}
return {};
}