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LibWeb: Convert the CSS namespace object to ThrowCompletionOr

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Timothy Flynn 2021-10-31 08:34:54 -04:00 • committed by Linus Groh
parent 85dc3a8099
commit 0f93c9d6c8
Notes: sideshowbarker 2024-07-18 01:41:41 +09:00
2 changed files with 14 additions and 19 deletions
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29
Userland/Libraries/LibWeb/Bindings/CSSNamespace.cpp
View file

@ -26,40 +26,35 @@ void CSSNamespace::initialize(JS::GlobalObject& global_object)
{
Object::initialize(global_object);
u8 attr = JS::Attribute::Enumerable;
define_old_native_function("escape", escape, 1, attr);
define_old_native_function("supports", supports, 2, attr);
define_native_function("escape", escape, 1, attr);
define_native_function("supports", supports, 2, attr);
}
// https://www.w3.org/TR/cssom-1/#dom-css-escape
JS_DEFINE_OLD_NATIVE_FUNCTION(CSSNamespace::escape)
JS_DEFINE_NATIVE_FUNCTION(CSSNamespace::escape)
{
if (!vm.argument_count()) {
vm.throw_exception<JS::TypeError>(global_object, JS::ErrorType::BadArgCountAtLeastOne, "CSS.escape");
return {};
}
auto identifier = TRY_OR_DISCARD(vm.argument(0).to_string(global_object));
if (!vm.argument_count())
return vm.throw_completion<JS::TypeError>(global_object, JS::ErrorType::BadArgCountAtLeastOne, "CSS.escape");
auto identifier = TRY(vm.argument(0).to_string(global_object));
return JS::js_string(vm, Web::CSS::serialize_an_identifier(identifier));
}
// https://www.w3.org/TR/css-conditional-3/#dom-css-supports
JS_DEFINE_OLD_NATIVE_FUNCTION(CSSNamespace::supports)
JS_DEFINE_NATIVE_FUNCTION(CSSNamespace::supports)
{
if (!vm.argument_count()) {
vm.throw_exception<JS::TypeError>(global_object, JS::ErrorType::BadArgCountAtLeastOne, "CSS.supports");
return {};
}
if (!vm.argument_count())
return vm.throw_completion<JS::TypeError>(global_object, JS::ErrorType::BadArgCountAtLeastOne, "CSS.supports");
if (vm.argument_count() >= 2) {
// When the supports(property, value) method is invoked with two arguments property and value:
auto property_name = TRY_OR_DISCARD(vm.argument(0).to_string(global_object));
auto property_name = TRY(vm.argument(0).to_string(global_object));
// If property is an ASCII case-insensitive match for any defined CSS property that the UA supports,
// and value successfully parses according to that property’s grammar, return true.
auto property = CSS::property_id_from_string(property_name);
if (property != CSS::PropertyID::Invalid) {
auto value_string = TRY_OR_DISCARD(vm.argument(1).to_string(global_object));
auto value_string = TRY(vm.argument(1).to_string(global_object));
if (parse_css_value({}, value_string, property))
return JS::Value(true);
}
@ -73,7 +68,7 @@ JS_DEFINE_OLD_NATIVE_FUNCTION(CSSNamespace::supports)
return JS::Value(false);
} else {
// When the supports(conditionText) method is invoked with a single conditionText argument:
auto supports_text = TRY_OR_DISCARD(vm.argument(0).to_string(global_object));
auto supports_text = TRY(vm.argument(0).to_string(global_object));
// If conditionText, parsed and evaluated as a <supports-condition>, would return true, return true.
if (auto supports = parse_css_supports({}, supports_text); supports && supports->matches())

4
Userland/Libraries/LibWeb/Bindings/CSSNamespace.h
View file

@ -21,8 +21,8 @@ public:
virtual ~CSSNamespace() override;
private:
JS_DECLARE_OLD_NATIVE_FUNCTION(escape);
JS_DECLARE_OLD_NATIVE_FUNCTION(supports);
JS_DECLARE_NATIVE_FUNCTION(escape);
JS_DECLARE_NATIVE_FUNCTION(supports);
};
}