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LibWeb: Allow font-family names to start with -

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We achieve this by making properties that accept a custom-ident value
skip the "someone else's vendor prefix" check for values that start with
a `-` character.

This fixes an issue where e.g `font-family: Arial, -apple-system` would
be rejected by the parser completely. We now treat `-apple-system` like
an identifier in such cases.

Also add `valid-types` metadata for the `font-family` property so this
actually works. :^)
This commit is contained in:
Andreas Kling 2023-07-06 13:05:48 +02:00
parent dfdb31f5b0
commit 5955a504e0
4 changed files with 17 additions and 2 deletions
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3
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -7928,6 +7928,7 @@ Parser::ParseErrorOr<NonnullRefPtr<StyleValue>> Parser::parse_css_value(Property
m_context.set_current_property_id(property_id);
Vector<ComponentValue> component_values;
bool contains_var_or_attr = false;
bool const property_accepts_custom_ident = property_accepts_type(property_id, ValueType::CustomIdent);
while (tokens.has_next_token()) {
auto const& token = tokens.next_token();
@ -7941,7 +7942,7 @@ Parser::ParseErrorOr<NonnullRefPtr<StyleValue>> Parser::parse_css_value(Property
if (token.is(Token::Type::Whitespace))
continue;
if (token.is(Token::Type::Ident) && has_ignored_vendor_prefix(token.token().ident()))
if (!property_accepts_custom_ident && token.is(Token::Type::Ident) && has_ignored_vendor_prefix(token.token().ident()))
return ParseError::IncludesIgnoredVendorPrefix;
}