2 years ago · 64c06c345e
--- a/Tests/LibWeb/Layout/expected/css-host-selector-gets-parsed.txt
+++ b/Tests/LibWeb/Layout/expected/css-host-selector-gets-parsed.txt
@@ -0,0 +1,14 @@
 
															+Viewport <#document> at (0,0) content-size 800x600 children: not-inline
														
 
															+  BlockContainer <html> at (0,0) content-size 800x600 [BFC] children: not-inline
														
 
															+    BlockContainer <body> at (8,8) content-size 784x100 children: not-inline
														
 
															+      BlockContainer <div> at (8,8) content-size 100x100 children: inline
														
 
															+        line 0 width: 26.953125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
														
 
															+          frag 0 from TextNode start: 0, length: 3, rect: [8,8 26.953125x17.46875]
														
 
															+            "whf"
														
 
															+        TextNode <#text>
														
 
															+
														
 
															+PaintableWithLines (Viewport<#document>) [0,0 800x600]
														
 
															+  PaintableWithLines (BlockContainer<HTML>) [0,0 800x600]
														
 
															+    PaintableWithLines (BlockContainer<BODY>) [8,8 784x100]
														
 
															+      PaintableWithLines (BlockContainer<DIV>) [8,8 100x100]
														
 
															+        TextPaintable (TextNode<#text>)
														
--- a/Tests/LibWeb/Layout/input/css-host-selector-gets-parsed.html
+++ b/Tests/LibWeb/Layout/input/css-host-selector-gets-parsed.html
@@ -0,0 +1,9 @@
 
															+<style>
														
 
															+:host, div { 
														
 
															+    width: 100px;
														
 
															+}
														
 
															+:host(span), div { 
														
 
															+    height: 100px;
														
 
															+    background: green;
														
 
															+}
														
 
															+</style><div>whf
														
--- a/Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
@@ -613,6 +613,17 @@ Parser::ParseErrorOr<Selector::SimpleSelector> Parser::parse_pseudo_simple_selec
 
															                     .argument_selector_list = move(not_selector) }
														
 
															             };
														
 
															         }
														
 
															+        if (pseudo_function.name().equals_ignoring_ascii_case("host"sv)) {
														
 
															+            auto function_token_stream = TokenStream(pseudo_function.values());
														
 
															+            auto host_selector = TRY(parse_a_selector_list(function_token_stream, SelectorType::Standalone));
														
 
															+
														
 
															+            return Selector::SimpleSelector {
														
 
															+                .type = Selector::SimpleSelector::Type::PseudoClass,
														
 
															+                .value = Selector::SimpleSelector::PseudoClass {
														
 
															+                    .type = Selector::SimpleSelector::PseudoClass::Type::Host,
														
 
															+                    .argument_selector_list = move(host_selector) }
														
 
															+            };
														
 
															+        }
														
 
															         if (pseudo_function.name().equals_ignoring_ascii_case("lang"sv)) {
														
 
															             if (pseudo_function.values().is_empty()) {
														
 
															                 dbgln_if(CSS_PARSER_DEBUG, "Empty :lang() selector");
														
--- a/Userland/Libraries/LibWeb/Dump.cpp
+++ b/Userland/Libraries/LibWeb/Dump.cpp
@@ -574,6 +574,7 @@ void dump_selector(StringBuilder& builder, CSS::Selector const& selector)
 
															                     builder.join(',', pseudo_class.languages);
														
 
															                     builder.append(')');
														
 
															                 } else if (pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Not
														
 
															+                    || pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Host
														
 
															                     || pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Is
														
 
															                     || pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Where) {
														
 
															                     builder.append("(["sv);