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LibWeb: Implement @supports serialization

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This commit is contained in:
Sam Atkins 2022-04-22 15:18:47 +01:00 • committed by Andreas Kling
parent 1cec8e473f
commit dfba0cb2d9
3 changed files with 55 additions and 2 deletions
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3
Userland/Libraries/LibWeb/CSS/CSSSupportsRule.cpp
View file

@ -17,8 +17,7 @@ CSSSupportsRule::CSSSupportsRule(NonnullRefPtr<Supports>&& supports, NonnullRefP
String CSSSupportsRule::condition_text() const
{
// FIXME: Serializing supports rules!
return "<supports-condition>";
return m_supports->to_string();
}
void CSSSupportsRule::set_condition_text(String text)

40
Userland/Libraries/LibWeb/CSS/Supports.cpp
View file

@ -73,4 +73,44 @@ bool Supports::Feature::evaluate() const
});
}
String Supports::Declaration::to_string() const
{
return String::formatted("({})", declaration);
}
String Supports::Selector::to_string() const
{
return String::formatted("selector({})", selector);
}
String Supports::Feature::to_string() const
{
return value.visit([](auto& it) { return it.to_string(); });
}
String Supports::InParens::to_string() const
{
return value.visit(
[](NonnullOwnPtr<Condition> const& condition) -> String { return String::formatted("({})", condition->to_string()); },
[](auto& it) -> String { return it.to_string(); });
}
String Supports::Condition::to_string() const
{
switch (type) {
case Type::Not:
return String::formatted("not {}", children.first().to_string());
case Type::And:
return String::join(" and ", children);
case Type::Or:
return String::join(" or ", children);
}
VERIFY_NOT_REACHED();
}
String Supports::to_string() const
{
return m_condition->to_string();
}
}

14
Userland/Libraries/LibWeb/CSS/Supports.h
View file

@ -24,16 +24,19 @@ public:
struct Declaration {
String declaration;
bool evaluate() const;
String to_string() const;
};
struct Selector {
String selector;
bool evaluate() const;
String to_string() const;
};
struct Feature {
Variant<Declaration, Selector> value;
bool evaluate() const;
String to_string() const;
};
struct Condition;
@ -41,6 +44,7 @@ public:
Variant<NonnullOwnPtr<Condition>, Feature, GeneralEnclosed> value;
bool evaluate() const;
String to_string() const;
};
struct Condition {
@ -53,6 +57,7 @@ public:
Vector<InParens> children;
bool evaluate() const;
String to_string() const;
};
static NonnullRefPtr<Supports> create(NonnullOwnPtr<Condition>&& condition)
@ -61,6 +66,7 @@ public:
}
bool matches() const { return m_matches; }
String to_string() const;
private:
Supports(NonnullOwnPtr<Condition>&&);
@ -70,3 +76,11 @@ private:
};
}
template<>
struct AK::Formatter<Web::CSS::Supports::InParens> : AK::Formatter<StringView> {
ErrorOr<void> format(FormatBuilder& builder, Web::CSS::Supports::InParens const& in_parens)
{
return Formatter<StringView>::format(builder, in_parens.to_string());
}
};