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LibWeb: Wrap PseudoElements stored in SimpleSelector in a class

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No functional impact intended. This is just a more complicated way of
writing what we have now.

The goal of this commit is so that we are able to store the 'name' of a
pseudo element for use in serializing 'unknown -webkit-
pseudo-elements', see:

https://www.w3.org/TR/selectors-4/#compat

This is quite awkward, as in pretty much all cases just the selector
type enum is enough, but we will need to cache the name for serializing
these unknown selectors. I can't figure out any reason why we would need
this name anywhere else in the engine, so pretty much everywhere is
still just passing around this raw enum. But this change will allow us
to easily store the name inside of this new struct for when it is needed
for serialization, once those webkit unknown elements are supported by
our engine.
This commit is contained in:
Shannon Booth 2023-12-10 21:00:03 +13:00 • committed by Alexander Kalenik
parent 08920b7a34
commit 83758d4cdd
32 changed files with 196 additions and 174 deletions
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93
Userland/Libraries/LibWeb/CSS/Selector.h
View file

@ -21,23 +21,47 @@ using SelectorList = Vector<NonnullRefPtr<class Selector>>;
// This is a <complex-selector> in the spec. https://www.w3.org/TR/selectors-4/#complex
class Selector : public RefCounted<Selector> {
public:
enum class PseudoElement {
Before,
After,
FirstLine,
FirstLetter,
Marker,
MeterBar,
MeterEvenLessGoodValue,
MeterOptimumValue,
MeterSuboptimumValue,
ProgressValue,
ProgressBar,
Placeholder,
Selection,
class PseudoElement {
public:
enum class Type {
Before,
After,
FirstLine,
FirstLetter,
Marker,
MeterBar,
MeterEvenLessGoodValue,
MeterOptimumValue,
MeterSuboptimumValue,
ProgressValue,
ProgressBar,
Placeholder,
Selection,
// Keep this last.
PseudoElementCount,
// Keep this last.
PseudoElementCount,
};
explicit PseudoElement(Type type)
: m_type(type)
{
}
constexpr bool operator==(PseudoElement const&) const = default;
static Optional<PseudoElement> from_string(FlyString const&);
static StringView name(Selector::PseudoElement::Type pseudo_element);
StringView name() const
{
return name(m_type);
}
Type type() const { return m_type; }
private:
Type m_type;
};
struct SimpleSelector {
@ -208,43 +232,6 @@ private:
Optional<Selector::PseudoElement> m_pseudo_element;
};
constexpr StringView pseudo_element_name(Selector::PseudoElement pseudo_element)
{
switch (pseudo_element) {
case Selector::PseudoElement::Before:
return "before"sv;
case Selector::PseudoElement::After:
return "after"sv;
case Selector::PseudoElement::FirstLine:
return "first-line"sv;
case Selector::PseudoElement::FirstLetter:
return "first-letter"sv;
case Selector::PseudoElement::Marker:
return "marker"sv;
case Selector::PseudoElement::MeterBar:
return "-webkit-meter-bar"sv;
case Selector::PseudoElement::MeterEvenLessGoodValue:
return "-webkit-meter-even-less-good-value"sv;
case Selector::PseudoElement::MeterOptimumValue:
return "-webkit-meter-optimum-value"sv;
case Selector::PseudoElement::MeterSuboptimumValue:
return "-webkit-meter-suboptimum-value"sv;
case Selector::PseudoElement::ProgressBar:
return "-webkit-progress-bar"sv;
case Selector::PseudoElement::ProgressValue:
return "-webkit-progress-value"sv;
case Selector::PseudoElement::Placeholder:
return "placeholder"sv;
case Selector::PseudoElement::Selection:
return "selection"sv;
case Selector::PseudoElement::PseudoElementCount:
break;
}
VERIFY_NOT_REACHED();
}
Optional<Selector::PseudoElement> pseudo_element_from_string(StringView);
String serialize_a_group_of_selectors(Vector<NonnullRefPtr<Selector>> const& selectors);
}