bool DOMCSSNamespace::supports(const String& property, const String& value)
{
CSSPropertyID propertyID = cssPropertyID(property.stripWhiteSpace());
if (propertyID == CSSPropertyInvalid)
return false;
// CSSParser::parseValue() won't work correctly if !important is present,
// so just get rid of it. It doesn't matter to supports() if it's actually
// there or not, provided how it's specified in the value is correct.
String normalizedValue = value.stripWhiteSpace().simplifyWhiteSpace();
normalizedValue = valueWithoutImportant(normalizedValue);
if (normalizedValue.isEmpty())
return false;
auto dummyStyle = MutableStyleProperties::create();
return CSSParser::parseValue(dummyStyle, propertyID, normalizedValue, false, CSSStrictMode, nullptr) != CSSParser::ParseResult::Error;
}
bool DOMWindowCSS::supports(const String& property, const String& value) const
{
CSSPropertyID propertyID = cssPropertyID(property.stripWhiteSpace());
if (propertyID == CSSPropertyInvalid)
return false;
ASSERT(CSSPropertyMetadata::isEnabledProperty(propertyID));
// CSSParser::parseValue() won't work correctly if !important is present,
// so just get rid of it. It doesn't matter to supports() if it's actually
// there or not, provided how it's specified in the value is correct.
String normalizedValue = value.stripWhiteSpace().simplifyWhiteSpace();
normalizedValue = valueWithoutImportant(normalizedValue);
if (normalizedValue.isEmpty())
return false;
RefPtrWillBeRawPtr<MutableStylePropertySet> dummyStyle = MutableStylePropertySet::create();
return CSSParser::parseValue(dummyStyle.get(), propertyID, normalizedValue, false, HTMLStandardMode, 0);
}
