void StyleBuilderFunctions::applyInheritCSSPropertyWillChange(StyleResolverState& state)
{
state.style()->setWillChangeContents(state.parentStyle()->willChangeContents());
state.style()->setWillChangeScrollPosition(state.parentStyle()->willChangeScrollPosition());
state.style()->setWillChangeProperties(state.parentStyle()->willChangeProperties());
state.style()->setSubtreeWillChangeContents(state.parentStyle()->subtreeWillChangeContents());
}
void StyleBuilderFunctions::applyInheritCSSPropertyMotionPath(StyleResolverState& state)
{
if (state.parentStyle()->motionPath())
state.style()->setMotionPath(state.parentStyle()->motionPath());
else
state.style()->resetMotionPath();
}
void StyleBuilderFunctions::applyInheritCSSPropertyVerticalAlign(StyleResolverState& state)
{
EVerticalAlign verticalAlign = state.parentStyle()->verticalAlign();
state.style()->setVerticalAlign(verticalAlign);
if (verticalAlign == LENGTH)
state.style()->setVerticalAlignLength(state.parentStyle()->verticalAlignLength());
}
void StyleBuilder::applyProperty(CSSPropertyID id, StyleResolverState& state, CSSValue* value)
{
ASSERT_WITH_MESSAGE(!isShorthandProperty(id), "Shorthand property id = %d wasn't expanded at parsing time", id);
bool isInherit = state.parentNode() && value->isInheritedValue();
bool isInitial = value->isInitialValue() || (!state.parentNode() && value->isInheritedValue());
ASSERT(!isInherit || !isInitial); // isInherit -> !isInitial && isInitial -> !isInherit
ASSERT(!isInherit || (state.parentNode() && state.parentStyle())); // isInherit -> (state.parentNode() && state.parentStyle())
if (!state.applyPropertyToRegularStyle() && (!state.applyPropertyToVisitedLinkStyle() || !isValidVisitedLinkProperty(id))) {
// Limit the properties that can be applied to only the ones honored by :visited.
return;
}
if (isInherit && !state.parentStyle()->hasExplicitlyInheritedProperties() && !CSSPropertyMetadata::isInheritedProperty(id)) {
state.parentStyle()->setHasExplicitlyInheritedProperties();
} else if (value->isUnsetValue()) {
ASSERT(!isInherit && !isInitial);
if (CSSPropertyMetadata::isInheritedProperty(id))
isInherit = true;
else
isInitial = true;
}
StyleBuilder::applyProperty(id, state, value, isInitial, isInherit);
}
void StyleBuilderFunctions::applyInheritCSSPropertyWebkitAspectRatio(StyleResolverState& state)
{
if (!state.parentStyle()->hasAspectRatio())
return;
state.style()->setHasAspectRatio(true);
state.style()->setAspectRatioDenominator(state.parentStyle()->aspectRatioDenominator());
state.style()->setAspectRatioNumerator(state.parentStyle()->aspectRatioNumerator());
}
InterpolationValue CSSClipInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
ClipAutos parentAutos = getClipAutos(*state.parentStyle());
conversionCheckers.append(ParentAutosChecker::create(parentAutos));
if (parentAutos.isAuto)
return nullptr;
return createClipValue(state.parentStyle()->clip(), state.parentStyle()->effectiveZoom());
}
PassOwnPtr<InterpolationValue> CSSShadowListInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
if (!state.parentStyle())
return nullptr;
const ShadowList* parentShadowList = ShadowListPropertyFunctions::getShadowList(cssProperty(), *state.parentStyle());
conversionCheckers.append(ParentShadowListChecker::create(*this, cssProperty(), const_cast<ShadowList*>(parentShadowList))); // Take ref.
return convertShadowList(parentShadowList, state.parentStyle()->effectiveZoom());
}
InterpolationValue CSSLengthListInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
Vector<Length> inheritedLengthList;
bool success = LengthListPropertyFunctions::getLengthList(cssProperty(), *state.parentStyle(), inheritedLengthList);
conversionCheckers.append(ParentLengthListChecker::create(cssProperty(), inheritedLengthList));
if (!success)
return nullptr;
return maybeConvertLengthList(inheritedLengthList, state.parentStyle()->effectiveZoom());
}
PassOwnPtr<InterpolationValue> CSSImageListInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
if (!state.parentStyle())
return nullptr;
StyleImageList inheritedImageList;
ImageListPropertyFunctions::getImageList(cssProperty(), *state.parentStyle(), inheritedImageList);
conversionCheckers.append(ParentImageListChecker::create(*this, cssProperty(), inheritedImageList));
return maybeConvertStyleImageList(inheritedImageList);
}
InterpolationValue CSSNumberInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
if (!state.parentStyle())
return nullptr;
double inheritedNumber;
if (!NumberPropertyFunctions::getNumber(cssProperty(), *state.parentStyle(), inheritedNumber))
return nullptr;
conversionCheckers.append(ParentNumberChecker::create(cssProperty(), inheritedNumber));
return createNumberValue(inheritedNumber);
}
PassOwnPtr<InterpolationValue> CSSLengthInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
if (!state.parentStyle())
return nullptr;
Length inheritedLength;
if (!LengthPropertyFunctions::getLength(cssProperty(), *state.parentStyle(), inheritedLength))
return nullptr;
conversionCheckers.append(ParentLengthChecker::create(*this, cssProperty(), inheritedLength));
return maybeConvertLength(inheritedLength, effectiveZoom(*state.parentStyle()));
}
InterpolationValue CSSBasicShapeInterpolationType::maybeConvertInherit(
const StyleResolverState& state,
ConversionCheckers& conversionCheckers) const {
const BasicShape* shape = BasicShapePropertyFunctions::getBasicShape(
cssProperty(), *state.parentStyle());
// const_cast to take a ref.
conversionCheckers.push_back(InheritedShapeChecker::create(
cssProperty(), const_cast<BasicShape*>(shape)));
return BasicShapeInterpolationFunctions::maybeConvertBasicShape(
shape, state.parentStyle()->effectiveZoom());
}
InterpolationValue CSSImageSliceInterpolationType::maybeConvertInherit(
const StyleResolverState& state,
ConversionCheckers& conversionCheckers) const {
const ImageSlice& inheritedImageSlice =
ImageSlicePropertyFunctions::getImageSlice(cssProperty(),
*state.parentStyle());
conversionCheckers.push_back(InheritedSliceTypesChecker::create(
cssProperty(), SliceTypes(inheritedImageSlice)));
return convertImageSlice(inheritedImageSlice,
state.parentStyle()->effectiveZoom());
}
void StyleBuilderFunctions::applyValueCSSPropertyTextAlign(StyleResolverState& state, CSSValue* value)
{
CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
if (primitiveValue->isValueID() && primitiveValue->getValueID() != CSSValueWebkitMatchParent)
state.style()->setTextAlign(*primitiveValue);
else if (state.parentStyle()->textAlign() == TASTART)
state.style()->setTextAlign(state.parentStyle()->isLeftToRightDirection() ? LEFT : RIGHT);
else if (state.parentStyle()->textAlign() == TAEND)
state.style()->setTextAlign(state.parentStyle()->isLeftToRightDirection() ? RIGHT : LEFT);
else
state.style()->setTextAlign(state.parentStyle()->textAlign());
}
InterpolationValue
CSSBorderImageLengthBoxInterpolationType::maybeConvertInherit(
const StyleResolverState& state,
ConversionCheckers& conversionCheckers) const {
const BorderImageLengthBox& inherited =
BorderImageLengthBoxPropertyFunctions::getBorderImageLengthBox(
cssProperty(), *state.parentStyle());
conversionCheckers.append(InheritedSideNumbersChecker::create(
cssProperty(), SideNumbers(inherited)));
return convertBorderImageLengthBox(inherited,
state.parentStyle()->effectiveZoom());
}
InterpolationValue CSSPaintInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
if (!state.parentStyle())
return nullptr;
StyleColor parentColor;
if (!PaintPropertyFunctions::getColor(cssProperty(), *state.parentStyle(), parentColor)) {
conversionCheckers.append(ParentPaintChecker::create(cssProperty()));
return nullptr;
}
conversionCheckers.append(ParentPaintChecker::create(cssProperty(), parentColor));
return InterpolationValue(CSSColorInterpolationType::createInterpolableColor(parentColor));
}
void StyleResolver::applyMatchedProperties(StyleResolverState& state, const MatchResult& matchResult)
{
const Element* element = state.element();
ASSERT(element);
INCREMENT_STYLE_STATS_COUNTER(*this, matchedPropertyApply);
unsigned cacheHash = matchResult.isCacheable ? computeMatchedPropertiesHash(matchResult.matchedProperties.data(), matchResult.matchedProperties.size()) : 0;
bool applyInheritedOnly = false;
const CachedMatchedProperties* cachedMatchedProperties = cacheHash ? m_matchedPropertiesCache.find(cacheHash, state, matchResult) : 0;
if (cachedMatchedProperties && MatchedPropertiesCache::isCacheable(element, state.style(), state.parentStyle())) {
INCREMENT_STYLE_STATS_COUNTER(*this, matchedPropertyCacheHit);
// We can build up the style by copying non-inherited properties from an earlier style object built using the same exact
// style declarations. We then only need to apply the inherited properties, if any, as their values can depend on the
// element context. This is fast and saves memory by reusing the style data structures.
state.style()->copyNonInheritedFrom(cachedMatchedProperties->renderStyle.get());
if (state.parentStyle()->inheritedDataShared(cachedMatchedProperties->parentRenderStyle.get()) &&
(state.style()->userModify() == READ_ONLY)) {
INCREMENT_STYLE_STATS_COUNTER(*this, matchedPropertyCacheInheritedHit);
// If the cache item parent style has identical inherited properties to the current parent style then the
// resulting style will be identical too. We copy the inherited properties over from the cache and are done.
state.style()->inheritFrom(cachedMatchedProperties->renderStyle.get());
return;
}
applyInheritedOnly = true;
}
state.setLineHeightValue(0);
applyMatchedProperties<HighPriorityProperties>(state, matchResult, applyInheritedOnly);
// If our font got dirtied, go ahead and update it now.
updateFont(state);
// Line-height is set when we are sure we decided on the font-size.
if (state.lineHeightValue())
StyleBuilder::applyProperty(CSSPropertyLineHeight, state, state.lineHeightValue());
// Many properties depend on the font. If it changes we just apply all properties.
if (cachedMatchedProperties && cachedMatchedProperties->renderStyle->fontDescription() != state.style()->fontDescription())
applyInheritedOnly = false;
applyMatchedProperties<LowPriorityProperties>(state, matchResult, applyInheritedOnly);
if (!cachedMatchedProperties && cacheHash && MatchedPropertiesCache::isCacheable(element, state.style(), state.parentStyle())) {
INCREMENT_STYLE_STATS_COUNTER(*this, matchedPropertyCacheAdded);
m_matchedPropertiesCache.add(state.style(), state.parentStyle(), cacheHash, matchResult);
}
ASSERT(!state.fontBuilder().fontDirty());
}
FontWeight StyleBuilderConverter::convertFontWeight(StyleResolverState& state, CSSValue* value)
{
CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
switch (primitiveValue->getValueID()) {
case CSSValueBolder:
return FontDescription::bolderWeight(state.parentStyle()->fontDescription().weight());
case CSSValueLighter:
return FontDescription::lighterWeight(state.parentStyle()->fontDescription().weight());
default:
return *primitiveValue;
}
}
InterpolationValue CSSImageInterpolationType::maybeConvertInherit(
const StyleResolverState& state,
ConversionCheckers& conversionCheckers) const {
if (!state.parentStyle())
return nullptr;
const StyleImage* inheritedImage = ImagePropertyFunctions::getStyleImage(
cssProperty(), *state.parentStyle());
StyleImage* refableImage = const_cast<StyleImage*>(inheritedImage);
conversionCheckers.append(
InheritedImageChecker::create(cssProperty(), refableImage));
return maybeConvertStyleImage(inheritedImage, true);
}
void StyleBuilderFunctions::applyInitialCSSPropertyWillChange(StyleResolverState& state)
{
state.style()->setWillChangeContents(false);
state.style()->setWillChangeScrollPosition(false);
state.style()->setWillChangeProperties(Vector<CSSPropertyID>());
state.style()->setSubtreeWillChangeContents(state.parentStyle()->subtreeWillChangeContents());
}
InterpolationValue CSSScaleInterpolationType::maybeConvertInherit(
const StyleResolverState& state,
ConversionCheckers& conversionCheckers) const {
Scale parentScale(state.parentStyle()->scale());
conversionCheckers.append(ParentScaleChecker::create(parentScale));
return InterpolationValue(parentScale.createInterpolableValue());
}
InterpolationValue CSSRotateInterpolationType::maybeConvertInherit(
const StyleResolverState& state,
ConversionCheckers& conversionCheckers) const {
Rotation inheritedRotation = getRotation(*state.parentStyle());
conversionCheckers.push_back(
InheritedRotationChecker::create(inheritedRotation));
return convertRotation(inheritedRotation);
}
void StyleBuilderFunctions::applyInheritCSSPropertyColor(StyleResolverState& state)
{
Color color = state.parentStyle()->color();
if (state.applyPropertyToRegularStyle())
state.style()->setColor(color);
if (state.applyPropertyToVisitedLinkStyle())
state.style()->setVisitedLinkColor(color);
}
void StyleBuilderFunctions::applyInheritCSSPropertyBaselineShift(StyleResolverState& state)
{
const SVGComputedStyle& parentSvgStyle = state.parentStyle()->svgStyle();
EBaselineShift baselineShift = parentSvgStyle.baselineShift();
SVGComputedStyle& svgStyle = state.style()->accessSVGStyle();
svgStyle.setBaselineShift(baselineShift);
if (baselineShift == BS_LENGTH)
svgStyle.setBaselineShiftValue(parentSvgStyle.baselineShiftValue());
}
InterpolationValue CSSTransformInterpolationType::maybeConvertInherit(
const StyleResolverState& state,
ConversionCheckers& conversionCheckers) const {
const TransformOperations& inheritedTransform =
state.parentStyle()->transform();
conversionCheckers.append(
InheritedTransformChecker::create(inheritedTransform));
return convertTransform(inheritedTransform);
}
InterpolationValue CSSColorInterpolationType::maybeConvertInherit(const StyleResolverState& state, ConversionCheckers& conversionCheckers) const
{
if (!state.parentStyle())
return nullptr;
// Visited color can never explicitly inherit from parent visited color so only use the unvisited color.
const StyleColor inheritedColor = ColorPropertyFunctions::getUnvisitedColor(cssProperty(), *state.parentStyle());
conversionCheckers.append(ParentColorChecker::create(cssProperty(), inheritedColor));
return convertStyleColorPair(inheritedColor, inheritedColor);
}
void StyleBuilder::applyProperty(CSSPropertyID id, StyleResolverState& state, CSSValue* value)
{
ASSERT_WITH_MESSAGE(!isExpandedShorthand(id), "Shorthand property id = %d wasn't expanded at parsing time", id);
bool isInherit = state.parentNode() && value->isInheritedValue();
bool isInitial = value->isInitialValue() || (!state.parentNode() && value->isInheritedValue());
ASSERT(!isInherit || !isInitial); // isInherit -> !isInitial && isInitial -> !isInherit
ASSERT(!isInherit || (state.parentNode() && state.parentStyle())); // isInherit -> (state.parentNode() && state.parentStyle())
CSSPrimitiveValue* primitiveValue = value->isPrimitiveValue() ? toCSSPrimitiveValue(value) : 0;
if (primitiveValue && primitiveValue->getValueID() == CSSValueCurrentcolor)
state.style()->setHasCurrentColor();
if (isInherit && !state.parentStyle()->hasExplicitlyInheritedProperties() && !CSSPropertyMetadata::isInheritedProperty(id))
state.parentStyle()->setHasExplicitlyInheritedProperties();
StyleBuilder::applyProperty(id, state, value, isInitial, isInherit);
}
void StyleBuilderFunctions::applyValueCSSPropertyTextAlign(StyleResolverState& state, CSSValue* value)
{
if (!value->isPrimitiveValue())
return;
CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
// FIXME : Per http://www.w3.org/TR/css3-text/#text-align0 can now take <string> but this is not implemented in the
// rendering code.
if (primitiveValue->isString())
return;
if (primitiveValue->isValueID() && primitiveValue->getValueID() != CSSValueWebkitMatchParent)
state.style()->setTextAlign(*primitiveValue);
else if (state.parentStyle()->textAlign() == TASTART)
state.style()->setTextAlign(state.parentStyle()->isLeftToRightDirection() ? LEFT : RIGHT);
else if (state.parentStyle()->textAlign() == TAEND)
state.style()->setTextAlign(state.parentStyle()->isLeftToRightDirection() ? RIGHT : LEFT);
else
state.style()->setTextAlign(state.parentStyle()->textAlign());
}
InterpolationValue CSSFilterListInterpolationType::maybeConvertInherit(
const StyleResolverState& state,
ConversionCheckers& conversionCheckers) const {
const FilterOperations& inheritedFilterOperations =
FilterListPropertyFunctions::getFilterList(cssProperty(),
*state.parentStyle());
conversionCheckers.push_back(InheritedFilterListChecker::create(
cssProperty(), inheritedFilterOperations));
return convertFilterList(inheritedFilterOperations,
state.style()->effectiveZoom());
}
void StyleBuilderFunctions::applyValueCSSPropertyWillChange(StyleResolverState& state, CSSValue* value)
{
ASSERT(value->isValueList());
bool willChangeContents = false;
bool willChangeScrollPosition = false;
Vector<CSSPropertyID> willChangeProperties;
for (CSSValueListIterator i(value); i.hasMore(); i.advance()) {
CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(i.value());
if (CSSPropertyID propertyID = primitiveValue->getPropertyID())
willChangeProperties.append(propertyID);
else if (primitiveValue->getValueID() == CSSValueContents)
willChangeContents = true;
else if (primitiveValue->getValueID() == CSSValueScrollPosition)
willChangeScrollPosition = true;
else
ASSERT_NOT_REACHED();
}
state.style()->setWillChangeContents(willChangeContents);
state.style()->setWillChangeScrollPosition(willChangeScrollPosition);
state.style()->setWillChangeProperties(willChangeProperties);
state.style()->setSubtreeWillChangeContents(willChangeContents || state.parentStyle()->subtreeWillChangeContents());
}