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LibWeb: Parse :host() selector
We were already parsing non-function-syntax :host, so let's also do the :host(...) variant. Note that we don't have matching for these yet. This fixes many issues on sites generated by Wix, as they often have selector lists that include some :host() selector, and we'd reject the entire rule after failing to parse it.
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4 changed files with 35 additions and 0 deletions
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Viewport <#document> at (0,0) content-size 800x600 children: not-inline
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BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
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BlockContainer <body> at (8,8) content-size 784x100 children: not-inline
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BlockContainer <div> at (8,8) content-size 100x100 children: inline
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line 0 width: 26.953125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
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frag 0 from TextNode start: 0, length: 3, rect: [8,8 26.953125x17.46875]
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"whf"
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TextNode <#text>
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PaintableWithLines (Viewport<#document>) [0,0 800x600]
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PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
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PaintableWithLines (BlockContainer<BODY>) [8,8 784x100]
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PaintableWithLines (BlockContainer<DIV>) [8,8 100x100]
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TextPaintable (TextNode<#text>)
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@ -0,0 +1,9 @@
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<style>
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:host, div {
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width: 100px;
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}
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:host(span), div {
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height: 100px;
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background: green;
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}
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</style><div>whf
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@ -613,6 +613,17 @@ Parser::ParseErrorOr<Selector::SimpleSelector> Parser::parse_pseudo_simple_selec
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.argument_selector_list = move(not_selector) }
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};
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}
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if (pseudo_function.name().equals_ignoring_ascii_case("host"sv)) {
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auto function_token_stream = TokenStream(pseudo_function.values());
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auto host_selector = TRY(parse_a_selector_list(function_token_stream, SelectorType::Standalone));
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return Selector::SimpleSelector {
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.type = Selector::SimpleSelector::Type::PseudoClass,
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.value = Selector::SimpleSelector::PseudoClass {
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.type = Selector::SimpleSelector::PseudoClass::Type::Host,
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.argument_selector_list = move(host_selector) }
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};
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}
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if (pseudo_function.name().equals_ignoring_ascii_case("lang"sv)) {
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if (pseudo_function.values().is_empty()) {
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dbgln_if(CSS_PARSER_DEBUG, "Empty :lang() selector");
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@ -574,6 +574,7 @@ void dump_selector(StringBuilder& builder, CSS::Selector const& selector)
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builder.join(',', pseudo_class.languages);
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builder.append(')');
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} else if (pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Not
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|| pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Host
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|| pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Is
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|| pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Where) {
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builder.append("(["sv);
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