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LibWeb/CSS: Parse @page bleed, marks, page-orientation descriptors

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These don't have WPT tests so I've added some myself.
This commit is contained in:
Sam Atkins 2025-05-14 16:05:53 +01:00
commit 3a235e9050
Notes: github-actions[bot] 2025-05-15 08:54:25 +00:00
10 changed files with 190 additions and 1 deletions
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11
Meta/Lagom/Tools/CodeGenerators/LibWeb/GenerateCSSDescriptors.cpp
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@ -118,8 +118,10 @@ RefPtr<CSSStyleValue const> descriptor_initial_value(AtRuleID, DescriptorID);
struct DescriptorMetadata {
enum class ValueType {
// FIXME: Parse the grammar instead of hard-coding all the options!
CropOrCross,
FamilyName,
FontSrcList,
Length,
OptionalDeclarationValue,
PageSize,
PositivePercentage,
@ -387,6 +389,8 @@ DescriptorMetadata get_descriptor_metadata(AtRuleID at_rule_id, DescriptorID des
return "FontSrcList"_string;
if (syntax_string == "<declaration-value>?"sv)
return "OptionalDeclarationValue"_string;
if (syntax_string == "<length>"sv)
return "Length"_string;
if (syntax_string == "<page-size>"sv)
return "PageSize"_string;
if (syntax_string == "<percentage [0,∞]>"sv)
@ -395,13 +399,18 @@ DescriptorMetadata get_descriptor_metadata(AtRuleID at_rule_id, DescriptorID des
return "String"_string;
if (syntax_string == "<unicode-range-token>#"sv)
return "UnicodeRangeTokens"_string;
dbgln("Unrecognized value type: `{}`", syntax_string);
VERIFY_NOT_REACHED();
}();
option_generator.set("value_type"sv, value_type);
option_generator.append(R"~~~(
metadata.syntax.empend(DescriptorMetadata::ValueType::@value_type@);
)~~~");
} else if (syntax_string == "crop || cross"sv) {
// FIXME: This is extra hacky.
option_generator.append(R"~~~(
metadata.syntax.empend(DescriptorMetadata::ValueType::CropOrCross);
)~~~");
} else {
// Keyword
option_generator.set("keyword:titlecase"sv, title_casify(syntax_string));