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LibWeb: Support the :first-of-type CSS selector :^)

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This commit is contained in:
Andreas Kling 2021-04-06 12:23:32 +02:00
parent 4f690408af
commit 0eb9a9dd13
6 changed files with 26 additions and 0 deletions
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2
Userland/Libraries/LibWeb/CSS/Parser/DeprecatedCSSParser.cpp
View file

@ -554,6 +554,8 @@ public:
simple_selector.pseudo_class = CSS::Selector::SimpleSelector::PseudoClass::Empty;
} else if (pseudo_name.equals_ignoring_case("root")) {
simple_selector.pseudo_class = CSS::Selector::SimpleSelector::PseudoClass::Root;
} else if (pseudo_name.equals_ignoring_case("first-of-type")) {
simple_selector.pseudo_class = CSS::Selector::SimpleSelector::PseudoClass::FirstOfType;
} else if (pseudo_name.equals_ignoring_case("before")) {
simple_selector.pseudo_element = CSS::Selector::SimpleSelector::PseudoElement::Before;
} else if (pseudo_name.equals_ignoring_case("after")) {

1
Userland/Libraries/LibWeb/CSS/Selector.h
View file

@ -54,6 +54,7 @@ public:
OnlyChild,
Empty,
Root,
FirstOfType,
};
PseudoClass pseudo_class { PseudoClass::None };

6
Userland/Libraries/LibWeb/CSS/SelectorEngine.cpp
View file

@ -90,6 +90,12 @@ static bool matches(const CSS::Selector::SimpleSelector& component, const DOM::E
if (!is<HTML::HTMLElement>(element))
return false;
break;
case CSS::Selector::SimpleSelector::PseudoClass::FirstOfType:
for (auto* sibling = element.previous_element_sibling(); sibling; sibling = sibling->previous_element_sibling()) {
if (sibling->tag_name() == element.tag_name())
return false;
}
break;
}
switch (component.attribute_match_type) {

3
Userland/Libraries/LibWeb/Dump.cpp
View file

@ -359,6 +359,9 @@ void dump_selector(StringBuilder& builder, const CSS::Selector& selector)
case CSS::Selector::SimpleSelector::PseudoClass::Root:
pseudo_class_description = "Root";
break;
case CSS::Selector::SimpleSelector::PseudoClass::FirstOfType:
pseudo_class_description = "FirstOfType";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Focus:
pseudo_class_description = "Focus";
break;