void CSSVariableResolver::resolveAndApplyVariableReferences(StyleResolverState& state, CSSPropertyID id, const CSSVariableReferenceValue& value)
{
CSSVariableResolver resolver(state.style()->variables());
Vector<CSSParserToken> tokens;
if (resolver.resolveTokenRange(value.variableDataValue()->tokens(), tokens)) {
CSSParserContext context(HTMLStandardMode, 0);
HeapVector<CSSProperty, 256> parsedProperties;
// TODO: Non-shorthands should just call CSSPropertyParser::parseSingleValue
if (CSSPropertyParser::parseValue(id, false, CSSParserTokenRange(tokens), context, parsedProperties, StyleRule::RuleType::Style)) {
unsigned parsedPropertiesCount = parsedProperties.size();
for (unsigned i = 0; i < parsedPropertiesCount; ++i)
StyleBuilder::applyProperty(parsedProperties[i].id(), state, parsedProperties[i].value());
return;
}
}
RawPtr<CSSUnsetValue> unset = cssValuePool().createUnsetValue();
if (isShorthandProperty(id)) {
StylePropertyShorthand shorthand = shorthandForProperty(id);
for (unsigned i = 0; i < shorthand.length(); i++)
StyleBuilder::applyProperty(shorthand.properties()[i], state, unset.get());
return;
}
StyleBuilder::applyProperty(id, state, unset.get());
}
RawPtr<CSSValue> CSSVariableResolver::resolveVariableReferences(StyleVariableData* styleVariableData, CSSPropertyID id, const CSSVariableReferenceValue& value)
{
ASSERT(!isShorthandProperty(id));
CSSVariableResolver resolver(styleVariableData);
Vector<CSSParserToken> tokens;
if (!resolver.resolveTokenRange(value.variableDataValue()->tokens(), tokens))
return cssValuePool().createUnsetValue();
RawPtr<CSSValue> result = CSSPropertyParser::parseSingleValue(id, tokens, strictCSSParserContext());
if (!result)
return cssValuePool().createUnsetValue();
return result.release();
}
RefPtr<CSSValue> CSSParser::parseValueWithVariableReferences(CSSPropertyID propID, const CSSValue& value, const CustomPropertyValueMap& customProperties, TextDirection direction, WritingMode writingMode)
{
if (value.isPendingSubstitutionValue()) {
// FIXME: Should have a resolvedShorthands cache to stop this from being done
// over and over for each longhand value.
const CSSPendingSubstitutionValue& pendingSubstitution = downcast<CSSPendingSubstitutionValue>(value);
CSSPropertyID shorthandID = pendingSubstitution.shorthandPropertyId();
if (CSSProperty::isDirectionAwareProperty(shorthandID))
shorthandID = CSSProperty::resolveDirectionAwareProperty(shorthandID, direction, writingMode);
CSSVariableReferenceValue* shorthandValue = pendingSubstitution.shorthandValue();
const CSSVariableData* variableData = shorthandValue->variableDataValue();
ASSERT(variableData);
Vector<CSSParserToken> resolvedTokens;
if (!variableData->resolveTokenRange(customProperties, variableData->tokens(), resolvedTokens))
return nullptr;
ParsedPropertyVector parsedProperties;
if (!CSSPropertyParser::parseValue(shorthandID, false, resolvedTokens, m_context, nullptr, parsedProperties, StyleRule::Style))
return nullptr;
for (auto& property : parsedProperties) {
if (property.id() == propID)
return property.value();
}
return nullptr;
}
if (value.isVariableReferenceValue()) {
const CSSVariableReferenceValue& valueWithReferences = downcast<CSSVariableReferenceValue>(value);
const CSSVariableData* variableData = valueWithReferences.variableDataValue();
ASSERT(variableData);
Vector<CSSParserToken> resolvedTokens;
if (!variableData->resolveTokenRange(customProperties, variableData->tokens(), resolvedTokens))
return nullptr;
return CSSPropertyParser::parseSingleValue(propID, resolvedTokens, m_context, nullptr);
}
return nullptr;
}