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LibWeb: Bring Selector terminology in line with the CSS spec

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- CompoundSelector -> *deleted*
- ComplexSelector -> CompoundSelector
- Relation -> Combinator

Our Selector is really a ComplexSelector, but only the Parser and
SelectorEngine need to know that, so keeping it named Selector makes it
more understandable for users.

Our CompoundSelector is really a CompoundSelectorAndCombinator.
Combining the two makes sense in our codebase, but the accurate name is
so long that I think it makes the code less readable.

Renamed some Combinators to also match the spec terminology:

- AdjacentSibling -> NextSibling
- GeneralSibling -> SubsequentSibling

The previous names are somewhat ambiguous, so hopefully this is clearer.
This commit is contained in:
Sam Atkins 2021-07-23 15:24:33 +01:00 • committed by Andreas Kling
parent ca436afeb5
commit 6ea5d03f43
6 changed files with 67 additions and 63 deletions
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18
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -229,7 +229,7 @@ RefPtr<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is_r
// FIXME: Bring this all in line with the spec. https://www.w3.org/TR/selectors-4/
Vector<Selector::ComplexSelector> selectors;
Vector<Selector::CompoundSelector> selectors;
auto check_for_eof_or_whitespace = [&](T& current_value) -> bool {
if (current_value.is(Token::Type::EndOfFile))
@ -491,8 +491,8 @@ RefPtr<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is_r
return simple_selector;
};
auto parse_complex_selector = [&]() -> Optional<Selector::ComplexSelector> {
auto relation = Selector::ComplexSelector::Relation::Descendant;
auto parse_complex_selector = [&]() -> Optional<Selector::CompoundSelector> {
auto combinator = Selector::Combinator::Descendant;
tokens.skip_whitespace();
@ -500,13 +500,13 @@ RefPtr<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is_r
if (current_value.is(Token::Type::Delim)) {
auto delim = ((Token)current_value).delim();
if (delim == ">") {
relation = Selector::ComplexSelector::Relation::ImmediateChild;
combinator = Selector::Combinator::ImmediateChild;
tokens.next_token();
} else if (delim == "+") {
relation = Selector::ComplexSelector::Relation::AdjacentSibling;
combinator = Selector::Combinator::NextSibling;
tokens.next_token();
} else if (delim == "~") {
relation = Selector::ComplexSelector::Relation::GeneralSibling;
combinator = Selector::Combinator::SubsequentSibling;
tokens.next_token();
} else if (delim == "|") {
tokens.next_token();
@ -516,7 +516,7 @@ RefPtr<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is_r
return {};
if (next.is(Token::Type::Delim) && next.token().delim() == "|") {
relation = Selector::ComplexSelector::Relation::Column;
combinator = Selector::Combinator::Column;
tokens.next_token();
}
}
@ -541,7 +541,7 @@ RefPtr<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is_r
if (simple_selectors.is_empty())
return {};
return Selector::ComplexSelector { relation, move(simple_selectors) };
return Selector::CompoundSelector { combinator, move(simple_selectors) };
};
for (;;) {
@ -558,7 +558,7 @@ RefPtr<Selector> Parser::parse_single_selector(TokenStream<T>& tokens, bool is_r
return {};
if (!is_relative)
selectors.first().relation = Selector::ComplexSelector::Relation::None;
selectors.first().combinator = Selector::Combinator::None;
return Selector::create(move(selectors));
}