bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSValue& value)
{
// FIXME: should not require resolving styles for inherit/initial/unset.
if (value.isCSSWideKeyword())
return true;
if (value.isBasicShapeCircleValue())
return interpolationRequiresStyleResolve(toCSSBasicShapeCircleValue(value));
if (value.isBasicShapeEllipseValue())
return interpolationRequiresStyleResolve(toCSSBasicShapeEllipseValue(value));
if (value.isBasicShapePolygonValue())
return interpolationRequiresStyleResolve(toCSSBasicShapePolygonValue(value));
if (value.isBasicShapeInsetValue())
return interpolationRequiresStyleResolve(toCSSBasicShapeInsetValue(value));
if (value.isPrimitiveValue())
return interpolationRequiresStyleResolve(toCSSPrimitiveValue(value));
if (value.isQuadValue())
return interpolationRequiresStyleResolve(toCSSQuadValue(value));
if (value.isValueList())
return interpolationRequiresStyleResolve(toCSSValueList(value));
if (value.isValuePair())
return interpolationRequiresStyleResolve(toCSSValuePair(value));
if (value.isImageValue())
return interpolationRequiresStyleResolve(toCSSImageValue(value));
if (value.isShadowValue())
return interpolationRequiresStyleResolve(toCSSShadowValue(value));
if (value.isSVGDocumentValue())
return interpolationRequiresStyleResolve(toCSSSVGDocumentValue(value));
// FIXME: consider other custom types.
return true;
}
bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSValue& value)
{
switch (value.cssValueType()) {
case CSSValue::CSS_INHERIT:
return true;
case CSSValue::CSS_PRIMITIVE_VALUE:
return interpolationRequiresStyleResolve(toCSSPrimitiveValue(value));
case CSSValue::CSS_VALUE_LIST:
return interpolationRequiresStyleResolve(toCSSValueList(value));
case CSSValue::CSS_CUSTOM:
if (value.isImageValue())
return interpolationRequiresStyleResolve(toCSSImageValue(value));
if (value.isShadowValue())
return interpolationRequiresStyleResolve(toCSSShadowValue(value));
if (value.isSVGDocumentValue())
return interpolationRequiresStyleResolve(toCSSSVGDocumentValue(value));
// FIXME: consider other custom types.
return true;
case CSSValue::CSS_INITIAL:
// FIXME: should not require resolving styles for initial.
return true;
default:
ASSERT_NOT_REACHED();
return true;
}
}
void CSSValue::finalizeGarbageCollectedObject()
{
switch (classType()) {
case BorderImageSliceClass:
toCSSBorderImageSliceValue(this)->~CSSBorderImageSliceValue();
return;
case CanvasClass:
toCSSCanvasValue(this)->~CSSCanvasValue();
return;
case CounterClass:
toCSSCounterValue(this)->~CSSCounterValue();
return;
case CursorImageClass:
toCSSCursorImageValue(this)->~CSSCursorImageValue();
return;
case FontFaceSrcClass:
toCSSFontFaceSrcValue(this)->~CSSFontFaceSrcValue();
return;
case FontFeatureClass:
toCSSFontFeatureValue(this)->~CSSFontFeatureValue();
return;
case FunctionClass:
toCSSFunctionValue(this)->~CSSFunctionValue();
return;
case LinearGradientClass:
toCSSLinearGradientValue(this)->~CSSLinearGradientValue();
return;
case RadialGradientClass:
toCSSRadialGradientValue(this)->~CSSRadialGradientValue();
return;
case CrossfadeClass:
toCSSCrossfadeValue(this)->~CSSCrossfadeValue();
return;
case ImageClass:
toCSSImageValue(this)->~CSSImageValue();
return;
case InheritedClass:
toCSSInheritedValue(this)->~CSSInheritedValue();
return;
case InitialClass:
toCSSInitialValue(this)->~CSSInitialValue();
return;
case UnsetClass:
toCSSUnsetValue(this)->~CSSUnsetValue();
return;
case GridLineNamesClass:
toCSSGridLineNamesValue(this)->~CSSGridLineNamesValue();
return;
case GridTemplateAreasClass:
toCSSGridTemplateAreasValue(this)->~CSSGridTemplateAreasValue();
return;
case PathClass:
toCSSPathValue(this)->~CSSPathValue();
return;
case PrimitiveClass:
toCSSPrimitiveValue(this)->~CSSPrimitiveValue();
return;
case QuadClass:
toCSSQuadValue(this)->~CSSQuadValue();
return;
case ReflectClass:
toCSSReflectValue(this)->~CSSReflectValue();
return;
case ShadowClass:
toCSSShadowValue(this)->~CSSShadowValue();
return;
case CubicBezierTimingFunctionClass:
toCSSCubicBezierTimingFunctionValue(this)->~CSSCubicBezierTimingFunctionValue();
return;
case StepsTimingFunctionClass:
toCSSStepsTimingFunctionValue(this)->~CSSStepsTimingFunctionValue();
return;
case UnicodeRangeClass:
toCSSUnicodeRangeValue(this)->~CSSUnicodeRangeValue();
return;
case ValueListClass:
toCSSValueList(this)->~CSSValueList();
return;
case ValuePairClass:
toCSSValuePair(this)->~CSSValuePair();
return;
case ImageSetClass:
toCSSImageSetValue(this)->~CSSImageSetValue();
return;
case CSSSVGDocumentClass:
toCSSSVGDocumentValue(this)->~CSSSVGDocumentValue();
return;
case CSSContentDistributionClass:
toCSSContentDistributionValue(this)->~CSSContentDistributionValue();
return;
}
ASSERT_NOT_REACHED();
}
bool FilterOperationResolver::createFilterOperations(CSSValue* inValue, const CSSToLengthConversionData& unadjustedConversionData, FilterOperations& outOperations, StyleResolverState& state)
{
ASSERT(outOperations.isEmpty());
if (!inValue)
return false;
if (inValue->isPrimitiveValue()) {
CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(inValue);
if (primitiveValue->getValueID() == CSSValueNone)
return true;
}
if (!inValue->isValueList())
return false;
float zoomFactor = unadjustedConversionData.zoom() * state.elementStyleResources().deviceScaleFactor();
const CSSToLengthConversionData& conversionData = unadjustedConversionData.copyWithAdjustedZoom(zoomFactor);
FilterOperations operations;
for (CSSValueListIterator i = inValue; i.hasMore(); i.advance()) {
CSSValue* currValue = i.value();
if (!currValue->isFilterValue())
continue;
CSSFilterValue* filterValue = toCSSFilterValue(i.value());
FilterOperation::OperationType operationType = filterOperationForType(filterValue->operationType());
if (operationType == FilterOperation::VALIDATED_CUSTOM) {
// ValidatedCustomFilterOperation is not supposed to end up in the RenderStyle.
ASSERT_NOT_REACHED();
continue;
}
if (operationType == FilterOperation::CUSTOM) {
RefPtr<CustomFilterOperation> operation = createCustomFilterOperation(filterValue, state);
if (!operation)
return false;
operations.operations().append(operation);
continue;
}
if (operationType == FilterOperation::REFERENCE) {
if (filterValue->length() != 1)
continue;
CSSValue* argument = filterValue->itemWithoutBoundsCheck(0);
if (!argument->isSVGDocumentValue())
continue;
CSSSVGDocumentValue* svgDocumentValue = toCSSSVGDocumentValue(argument);
KURL url = state.document().completeURL(svgDocumentValue->url());
RefPtr<ReferenceFilterOperation> operation = ReferenceFilterOperation::create(svgDocumentValue->url(), url.fragmentIdentifier());
if (SVGURIReference::isExternalURIReference(svgDocumentValue->url(), state.document())) {
if (!svgDocumentValue->loadRequested())
state.elementStyleResources().addPendingSVGDocument(operation.get(), svgDocumentValue);
else if (svgDocumentValue->cachedSVGDocument())
ReferenceFilterBuilder::setDocumentResourceReference(operation.get(), adoptPtr(new DocumentResourceReference(svgDocumentValue->cachedSVGDocument())));
}
operations.operations().append(operation);
continue;
}
// Check that all parameters are primitive values, with the
// exception of drop shadow which has a CSSShadowValue parameter.
if (operationType != FilterOperation::DROP_SHADOW) {
bool haveNonPrimitiveValue = false;
for (unsigned j = 0; j < filterValue->length(); ++j) {
if (!filterValue->itemWithoutBoundsCheck(j)->isPrimitiveValue()) {
haveNonPrimitiveValue = true;
break;
}
}
if (haveNonPrimitiveValue)
continue;
}
CSSPrimitiveValue* firstValue = filterValue->length() && filterValue->itemWithoutBoundsCheck(0)->isPrimitiveValue() ? toCSSPrimitiveValue(filterValue->itemWithoutBoundsCheck(0)) : 0;
switch (filterValue->operationType()) {
case CSSFilterValue::GrayscaleFilterOperation:
case CSSFilterValue::SepiaFilterOperation:
case CSSFilterValue::SaturateFilterOperation: {
double amount = 1;
if (filterValue->length() == 1) {
amount = firstValue->getDoubleValue();
if (firstValue->isPercentage())
amount /= 100;
}
operations.operations().append(BasicColorMatrixFilterOperation::create(amount, operationType));
break;
}
case CSSFilterValue::HueRotateFilterOperation: {
double angle = 0;
if (filterValue->length() == 1)
angle = firstValue->computeDegrees();
operations.operations().append(BasicColorMatrixFilterOperation::create(angle, operationType));
break;
}
case CSSFilterValue::InvertFilterOperation:
case CSSFilterValue::BrightnessFilterOperation:
case CSSFilterValue::ContrastFilterOperation:
case CSSFilterValue::OpacityFilterOperation: {
double amount = (filterValue->operationType() == CSSFilterValue::BrightnessFilterOperation) ? 0 : 1;
if (filterValue->length() == 1) {
amount = firstValue->getDoubleValue();
if (firstValue->isPercentage())
amount /= 100;
}
operations.operations().append(BasicComponentTransferFilterOperation::create(amount, operationType));
break;
}
case CSSFilterValue::BlurFilterOperation: {
Length stdDeviation = Length(0, Fixed);
if (filterValue->length() >= 1)
stdDeviation = firstValue->convertToLength<FixedConversion | PercentConversion>(conversionData);
if (stdDeviation.isUndefined())
return false;
operations.operations().append(BlurFilterOperation::create(stdDeviation));
break;
}
case CSSFilterValue::DropShadowFilterOperation: {
if (filterValue->length() != 1)
return false;
CSSValue* cssValue = filterValue->itemWithoutBoundsCheck(0);
if (!cssValue->isShadowValue())
continue;
CSSShadowValue* item = toCSSShadowValue(cssValue);
IntPoint location(item->x->computeLength<int>(conversionData), item->y->computeLength<int>(conversionData));
int blur = item->blur ? item->blur->computeLength<int>(conversionData) : 0;
Color shadowColor;
if (item->color)
shadowColor = state.document().textLinkColors().colorFromPrimitiveValue(item->color.get(), state.style()->color());
operations.operations().append(DropShadowFilterOperation::create(location, blur, shadowColor.isValid() ? shadowColor : Color::transparent));
break;
}
case CSSFilterValue::UnknownFilterOperation:
default:
ASSERT_NOT_REACHED();
break;
}
}
outOperations = operations;
return true;
}
FilterOperations FilterOperationResolver::createFilterOperations(StyleResolverState& state, const CSSValue& inValue)
{
FilterOperations operations;
if (inValue.isPrimitiveValue()) {
ASSERT(toCSSPrimitiveValue(inValue).getValueID() == CSSValueNone);
return operations;
}
const CSSToLengthConversionData& conversionData = state.cssToLengthConversionData();
for (auto& currValue : toCSSValueList(inValue)) {
const CSSFunctionValue* filterValue = toCSSFunctionValue(currValue.get());
FilterOperation::OperationType operationType = filterOperationForType(filterValue->functionType());
countFilterUse(operationType, state.document());
ASSERT(filterValue->length() <= 1);
if (operationType == FilterOperation::REFERENCE) {
const CSSSVGDocumentValue& svgDocumentValue = toCSSSVGDocumentValue(filterValue->item(0));
KURL url = state.document().completeURL(svgDocumentValue.url());
ReferenceFilterOperation* operation = ReferenceFilterOperation::create(svgDocumentValue.url(), AtomicString(url.fragmentIdentifier()));
if (SVGURIReference::isExternalURIReference(svgDocumentValue.url(), state.document())) {
if (!svgDocumentValue.loadRequested())
state.elementStyleResources().addPendingSVGDocument(operation, &svgDocumentValue);
else if (svgDocumentValue.cachedSVGDocument())
ReferenceFilterBuilder::setDocumentResourceReference(operation, new DocumentResourceReference(svgDocumentValue.cachedSVGDocument()));
}
operations.operations().append(operation);
continue;
}
const CSSPrimitiveValue* firstValue = filterValue->length() && filterValue->item(0).isPrimitiveValue() ? &toCSSPrimitiveValue(filterValue->item(0)) : nullptr;
switch (filterValue->functionType()) {
case CSSValueGrayscale:
case CSSValueSepia:
case CSSValueSaturate: {
double amount = 1;
if (filterValue->length() == 1) {
amount = firstValue->getDoubleValue();
if (firstValue->isPercentage())
amount /= 100;
}
operations.operations().append(BasicColorMatrixFilterOperation::create(amount, operationType));
break;
}
case CSSValueHueRotate: {
double angle = 0;
if (filterValue->length() == 1)
angle = firstValue->computeDegrees();
operations.operations().append(BasicColorMatrixFilterOperation::create(angle, operationType));
break;
}
case CSSValueInvert:
case CSSValueBrightness:
case CSSValueContrast:
case CSSValueOpacity: {
double amount = (filterValue->functionType() == CSSValueBrightness) ? 0 : 1;
if (filterValue->length() == 1) {
amount = firstValue->getDoubleValue();
if (firstValue->isPercentage())
amount /= 100;
}
operations.operations().append(BasicComponentTransferFilterOperation::create(amount, operationType));
break;
}
case CSSValueBlur: {
Length stdDeviation = Length(0, Fixed);
if (filterValue->length() >= 1)
stdDeviation = firstValue->convertToLength(conversionData);
operations.operations().append(BlurFilterOperation::create(stdDeviation));
break;
}
case CSSValueDropShadow: {
const CSSShadowValue& item = toCSSShadowValue(filterValue->item(0));
IntPoint location(item.x->computeLength<int>(conversionData), item.y->computeLength<int>(conversionData));
int blur = item.blur ? item.blur->computeLength<int>(conversionData) : 0;
Color shadowColor = Color::black;
if (item.color)
shadowColor = state.document().textLinkColors().colorFromCSSValue(*item.color, state.style()->color());
operations.operations().append(DropShadowFilterOperation::create(location, blur, shadowColor));
break;
}
default:
ASSERT_NOT_REACHED();
break;
}
}
return operations;
}
