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LibWeb: Generate pseudo-element code from JSON

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Initially, this generates the enum and to/from-string functions. The
JSON itself contains more data than that, but it's unused for now.
This commit is contained in:
Sam Atkins 2025-03-19 14:58:22 +00:00
parent 0ed2e71801
commit ffa1dba96a
Notes: github-actions[bot] 2025-03-24 09:51:30 +00:00
14 changed files with 244 additions and 106 deletions
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14
Libraries/LibWeb/CSS/Parser/SelectorParsing.cpp
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@ -418,15 +418,15 @@ Parser::ParseErrorOr<Selector::SimpleSelector> Parser::parse_pseudo_simple_selec
auto pseudo_name = name_token.token().ident();
if (auto pseudo_element = Selector::PseudoElementSelector::from_string(pseudo_name); pseudo_element.has_value()) {
if (auto pseudo_element = pseudo_element_from_string(pseudo_name); pseudo_element.has_value()) {
// :has() is fussy about pseudo-elements inside it
if (m_pseudo_class_context.contains_slow(PseudoClass::Has) && !is_has_allowed_pseudo_element(pseudo_element->type())) {
if (m_pseudo_class_context.contains_slow(PseudoClass::Has) && !is_has_allowed_pseudo_element(*pseudo_element)) {
return ParseError::SyntaxError;
}
return Selector::SimpleSelector {
.type = Selector::SimpleSelector::Type::PseudoElement,
.value = pseudo_element.release_value()
.value = Selector::PseudoElementSelector { pseudo_element.release_value() }
};
}
@ -481,20 +481,20 @@ Parser::ParseErrorOr<Selector::SimpleSelector> Parser::parse_pseudo_simple_selec
// Single-colon syntax allowed for ::after, ::before, ::first-letter and ::first-line for compatibility.
// https://www.w3.org/TR/selectors/#pseudo-element-syntax
if (auto pseudo_element = Selector::PseudoElementSelector::from_string(pseudo_name); pseudo_element.has_value()) {
switch (pseudo_element.value().type()) {
if (auto pseudo_element = pseudo_element_from_string(pseudo_name); pseudo_element.has_value()) {
switch (pseudo_element.value()) {
case PseudoElement::After:
case PseudoElement::Before:
case PseudoElement::FirstLetter:
case PseudoElement::FirstLine:
// :has() is fussy about pseudo-elements inside it
if (m_pseudo_class_context.contains_slow(PseudoClass::Has) && !is_has_allowed_pseudo_element(pseudo_element->type())) {
if (m_pseudo_class_context.contains_slow(PseudoClass::Has) && !is_has_allowed_pseudo_element(pseudo_element.value())) {
return ParseError::SyntaxError;
}
return Selector::SimpleSelector {
.type = Selector::SimpleSelector::Type::PseudoElement,
.value = pseudo_element.value()
.value = Selector::PseudoElementSelector { pseudo_element.value() }
};
default:
break;