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LibWeb: Generate function for what properties resolve percentages to

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This is required by "determine the type of a calculation".
https://www.w3.org/TR/css-values-4/#determine-the-type-of-a-calculation
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Sam Atkins 2023-06-22 16:22:16 +01:00 • committed by Andreas Kling
parent be7093ab0d
commit 38f954cba5
2 changed files with 106 additions and 25 deletions
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26
Meta/Lagom/Tools/CodeGenerators/LibWeb/GenerateCSSPropertyID.cpp
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@ -176,6 +176,7 @@ enum class ValueType {
};
bool property_accepts_type(PropertyID, ValueType);
bool property_accepts_identifier(PropertyID, ValueID);
Optional<ValueType> property_resolves_percentages_relative_to(PropertyID);
// These perform range-checking, but are also safe to call with properties that don't accept that type. (They'll just return false.)
bool property_accepts_angle(PropertyID, Angle const&);
@ -718,6 +719,31 @@ bool property_accepts_identifier(PropertyID property_id, ValueID identifier)
}
}
Optional<ValueType> property_resolves_percentages_relative_to(PropertyID property_id)
{
switch (property_id) {
)~~~"));
TRY(properties.try_for_each_member([&](auto& name, auto& value) -> ErrorOr<void> {
VERIFY(value.is_object());
if (auto resolved_type = value.as_object().get_deprecated_string("percentages-resolve-to"sv); resolved_type.has_value()) {
auto property_generator = TRY(generator.fork());
TRY(property_generator.set("name:titlecase", TRY(title_casify(name))));
TRY(property_generator.set("resolved_type:titlecase", TRY(title_casify(resolved_type.value()))));
TRY(property_generator.try_append(R"~~~(
case PropertyID::@name:titlecase@:
return ValueType::@resolved_type:titlecase@;
)~~~"));
}
return {};
}));
TRY(generator.try_append(R"~~~(
default:
return {};
}
}
size_t property_maximum_value_count(PropertyID property_id)
{
switch (property_id) {