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LibWeb: Make :host()
take a <compound-selector>
This matches the spec: https://drafts.csswg.org/css-scoping-1/#selectordef-host
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4 changed files with 23 additions and 1 deletions
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@ -633,6 +633,24 @@ Parser::ParseErrorOr<Selector::SimpleSelector> Parser::parse_pseudo_simple_selec
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return parse_nth_child_selector(pseudo_class, pseudo_function.values(), false);
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case PseudoClassMetadata::ParameterType::ANPlusBOf:
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return parse_nth_child_selector(pseudo_class, pseudo_function.values(), true);
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case PseudoClassMetadata::ParameterType::CompoundSelector: {
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auto function_token_stream = TokenStream(pseudo_function.values());
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auto compound_selector = MUST(parse_compound_selector(function_token_stream));
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if (!compound_selector.has_value()) {
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dbgln_if(CSS_PARSER_DEBUG, "Failed to parse :{}() parameter as a compound selector", pseudo_function.name());
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return ParseError::SyntaxError;
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}
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Vector compound_selectors { compound_selector.release_value() };
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auto selector = Selector::create(move(compound_selectors));
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return Selector::SimpleSelector {
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.type = Selector::SimpleSelector::Type::PseudoClass,
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.value = Selector::SimpleSelector::PseudoClassSelector {
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.type = pseudo_class,
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.argument_selector_list = { move(selector) } }
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};
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}
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case PseudoClassMetadata::ParameterType::ForgivingSelectorList: {
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auto function_token_stream = TokenStream(pseudo_function.values());
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// NOTE: Because it's forgiving, even complete garbage will parse OK as an empty selector-list.
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