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LibWeb: Add support for pseudo-class functions that take an ident param

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This is prep work for `:dir()`, though other pseudo-classes may well use
it in the future too.
This commit is contained in:
Sam Atkins 2023-08-12 18:11:50 +01:00 • committed by Andreas Kling
commit 5b125811f1
Notes: sideshowbarker 2024-07-17 07:48:42 +09:00
4 changed files with 33 additions and 0 deletions
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23
Userland/Libraries/LibWeb/CSS/Parser/SelectorParsing.cpp
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@ -512,6 +512,29 @@ Parser::ParseErrorOr<Selector::SimpleSelector> Parser::parse_pseudo_simple_selec
.argument_selector_list = move(argument_selector_list) }
};
}
case PseudoClassMetadata::ParameterType::Ident: {
auto function_token_stream = TokenStream(pseudo_function.values());
function_token_stream.skip_whitespace();
auto maybe_ident_token = function_token_stream.next_token();
function_token_stream.skip_whitespace();
if (!maybe_ident_token.is(Token::Type::Ident) || function_token_stream.has_next_token()) {
dbgln_if(CSS_PARSER_DEBUG, "Failed to parse :{}() parameter as an ident: not an ident", pseudo_function.name());
return ParseError::SyntaxError;
}
auto maybe_ident = value_id_from_string(maybe_ident_token.token().ident());
if (!maybe_ident.has_value()) {
dbgln_if(CSS_PARSER_DEBUG, "Failed to parse :{}() parameter as an ident: unrecognized ident", pseudo_function.name());
return ParseError::SyntaxError;
}
return Selector::SimpleSelector {
.type = Selector::SimpleSelector::Type::PseudoClass,
.value = Selector::SimpleSelector::PseudoClassSelector {
.type = pseudo_class,
.identifier = maybe_ident.value() }
};
}
case PseudoClassMetadata::ParameterType::LanguageRanges: {
Vector<FlyString> languages;
auto function_token_stream = TokenStream(pseudo_function.values());