String AbstractPropertySetCSSStyleDeclaration::item(unsigned i) const {
if (i >= propertySet().propertyCount())
return "";
StylePropertySet::PropertyReference property = propertySet().propertyAt(i);
if (property.id() == CSSPropertyVariable)
return toCSSCustomPropertyDeclaration(property.value()).name();
if (property.id() == CSSPropertyApplyAtRule)
return "@apply";
return getPropertyName(property.id());
}
PropertyHandleSet StringKeyframe::properties() const
{
// This is not used in time-critical code, so we probably don't need to
// worry about caching this result.
PropertyHandleSet properties;
for (unsigned i = 0; i < m_cssPropertyMap->propertyCount(); ++i) {
StylePropertySet::PropertyReference propertyReference = m_cssPropertyMap->propertyAt(i);
ASSERT_WITH_MESSAGE(
!isShorthandProperty(propertyReference.id()) || propertyReference.value()->isVariableReferenceValue(),
"Web Animations: Encountered unexpanded shorthand CSS property (%d).", propertyReference.id());
properties.add(PropertyHandle(propertyReference.id(), false));
}
for (unsigned i = 0; i < m_presentationAttributeMap->propertyCount(); ++i)
properties.add(PropertyHandle(m_presentationAttributeMap->propertyAt(i).id(), true));
for (const auto& key: m_svgAttributeMap.keys())
properties.add(PropertyHandle(*key));
return properties;
}
void StyleResolver::applyProperties(StyleResolverState& state, const StylePropertySet* properties, bool inheritedOnly)
{
unsigned propertyCount = properties->propertyCount();
for (unsigned i = 0; i < propertyCount; ++i) {
StylePropertySet::PropertyReference current = properties->propertyAt(i);
if (inheritedOnly && !current.isInherited()) {
// If the property value is explicitly inherited, we need to apply further non-inherited properties
// as they might override the value inherited here. For this reason we don't allow declarations with
// explicitly inherited properties to be cached.
ASSERT(!current.value()->isInheritedValue());
continue;
}
CSSPropertyID property = current.id();
if (!isPropertyForPass<pass>(property))
continue;
if (pass == HighPriorityProperties && property == CSSPropertyLineHeight)
state.setLineHeightValue(current.value());
else
StyleBuilder::applyProperty(current.id(), state, current.value());
}
}
String StylePropertySerializer::asText() const
{
StringBuilder result;
BitArray<numCSSProperties> shorthandPropertyUsed;
BitArray<numCSSProperties> shorthandPropertyAppeared;
unsigned size = m_propertySet.propertyCount();
unsigned numDecls = 0;
for (unsigned n = 0; n < size; ++n) {
StylePropertySet::PropertyReference property = m_propertySet.propertyAt(n);
CSSPropertyID propertyID = property.id();
// Only enabled or internal properties should be part of the style.
ASSERT(RuntimeCSSEnabled::isCSSPropertyEnabled(propertyID) || isInternalProperty(propertyID));
CSSPropertyID shorthandPropertyID = CSSPropertyInvalid;
CSSPropertyID borderFallbackShorthandProperty = CSSPropertyInvalid;
String value;
switch (propertyID) {
case CSSPropertyBackgroundAttachment:
case CSSPropertyBackgroundClip:
case CSSPropertyBackgroundColor:
case CSSPropertyBackgroundImage:
case CSSPropertyBackgroundOrigin:
case CSSPropertyBackgroundPositionX:
case CSSPropertyBackgroundPositionY:
case CSSPropertyBackgroundSize:
case CSSPropertyBackgroundRepeatX:
case CSSPropertyBackgroundRepeatY:
shorthandPropertyAppeared.set(CSSPropertyBackground - firstCSSProperty);
continue;
case CSSPropertyContent:
if (property.value()->isValueList())
value = toCSSValueList(property.value())->customCSSText(AlwaysQuoteCSSString);
break;
case CSSPropertyBorderTopWidth:
case CSSPropertyBorderRightWidth:
case CSSPropertyBorderBottomWidth:
case CSSPropertyBorderLeftWidth:
if (!borderFallbackShorthandProperty)
borderFallbackShorthandProperty = CSSPropertyBorderWidth;
case CSSPropertyBorderTopStyle:
case CSSPropertyBorderRightStyle:
case CSSPropertyBorderBottomStyle:
case CSSPropertyBorderLeftStyle:
if (!borderFallbackShorthandProperty)
borderFallbackShorthandProperty = CSSPropertyBorderStyle;
case CSSPropertyBorderTopColor:
case CSSPropertyBorderRightColor:
case CSSPropertyBorderBottomColor:
case CSSPropertyBorderLeftColor:
if (!borderFallbackShorthandProperty)
borderFallbackShorthandProperty = CSSPropertyBorderColor;
// FIXME: Deal with cases where only some of border-(top|right|bottom|left) are specified.
if (!shorthandPropertyAppeared.get(CSSPropertyBorder - firstCSSProperty)) {
value = borderPropertyValue(ReturnNullOnUncommonValues);
if (value.isNull())
shorthandPropertyAppeared.set(CSSPropertyBorder - firstCSSProperty);
else
shorthandPropertyID = CSSPropertyBorder;
} else if (shorthandPropertyUsed.get(CSSPropertyBorder - firstCSSProperty))
shorthandPropertyID = CSSPropertyBorder;
if (!shorthandPropertyID)
shorthandPropertyID = borderFallbackShorthandProperty;
break;
case CSSPropertyWebkitBorderHorizontalSpacing:
case CSSPropertyWebkitBorderVerticalSpacing:
shorthandPropertyID = CSSPropertyBorderSpacing;
break;
case CSSPropertyFontFamily:
case CSSPropertyLineHeight:
case CSSPropertyFontSize:
case CSSPropertyFontStyle:
case CSSPropertyFontVariant:
case CSSPropertyFontWeight:
// Don't use CSSPropertyFont because old UAs can't recognize them but are important for editing.
break;
case CSSPropertyListStyleType:
case CSSPropertyListStylePosition:
case CSSPropertyListStyleImage:
shorthandPropertyID = CSSPropertyListStyle;
break;
case CSSPropertyMarginTop:
case CSSPropertyMarginRight:
case CSSPropertyMarginBottom:
case CSSPropertyMarginLeft:
shorthandPropertyID = CSSPropertyMargin;
break;
case CSSPropertyOutlineWidth:
case CSSPropertyOutlineStyle:
case CSSPropertyOutlineColor:
shorthandPropertyID = CSSPropertyOutline;
break;
case CSSPropertyOverflowX:
case CSSPropertyOverflowY:
shorthandPropertyID = CSSPropertyOverflow;
break;
case CSSPropertyPaddingTop:
case CSSPropertyPaddingRight:
case CSSPropertyPaddingBottom:
case CSSPropertyPaddingLeft:
shorthandPropertyID = CSSPropertyPadding;
break;
case CSSPropertyTransitionProperty:
case CSSPropertyTransitionDuration:
case CSSPropertyTransitionTimingFunction:
case CSSPropertyTransitionDelay:
shorthandPropertyID = CSSPropertyTransition;
break;
case CSSPropertyWebkitAnimationName:
case CSSPropertyWebkitAnimationDuration:
case CSSPropertyWebkitAnimationTimingFunction:
case CSSPropertyWebkitAnimationDelay:
case CSSPropertyWebkitAnimationIterationCount:
case CSSPropertyWebkitAnimationDirection:
case CSSPropertyWebkitAnimationFillMode:
shorthandPropertyID = CSSPropertyWebkitAnimation;
break;
case CSSPropertyFlexDirection:
case CSSPropertyFlexWrap:
shorthandPropertyID = CSSPropertyFlexFlow;
break;
case CSSPropertyFlexBasis:
case CSSPropertyFlexGrow:
case CSSPropertyFlexShrink:
shorthandPropertyID = CSSPropertyFlex;
break;
case CSSPropertyWebkitMaskPositionX:
case CSSPropertyWebkitMaskPositionY:
case CSSPropertyWebkitMaskRepeatX:
case CSSPropertyWebkitMaskRepeatY:
case CSSPropertyWebkitMaskImage:
case CSSPropertyWebkitMaskRepeat:
case CSSPropertyWebkitMaskPosition:
case CSSPropertyWebkitMaskClip:
case CSSPropertyWebkitMaskOrigin:
shorthandPropertyID = CSSPropertyWebkitMask;
break;
case CSSPropertyWebkitTransformOriginX:
case CSSPropertyWebkitTransformOriginY:
case CSSPropertyWebkitTransformOriginZ:
shorthandPropertyID = CSSPropertyWebkitTransformOrigin;
break;
case CSSPropertyWebkitTransitionProperty:
case CSSPropertyWebkitTransitionDuration:
case CSSPropertyWebkitTransitionTimingFunction:
case CSSPropertyWebkitTransitionDelay:
shorthandPropertyID = CSSPropertyWebkitTransition;
break;
default:
break;
}
unsigned shortPropertyIndex = shorthandPropertyID - firstCSSProperty;
if (shorthandPropertyID) {
if (shorthandPropertyUsed.get(shortPropertyIndex))
continue;
if (!shorthandPropertyAppeared.get(shortPropertyIndex) && value.isNull())
value = m_propertySet.getPropertyValue(shorthandPropertyID);
shorthandPropertyAppeared.set(shortPropertyIndex);
}
if (!value.isNull()) {
if (shorthandPropertyID) {
propertyID = shorthandPropertyID;
shorthandPropertyUsed.set(shortPropertyIndex);
}
} else
value = property.value()->cssText();
if (value == "initial" && !CSSProperty::isInheritedProperty(propertyID))
continue;
result.append(getPropertyText(propertyID, value, property.isImportant(), numDecls++));
}
if (shorthandPropertyAppeared.get(CSSPropertyBackground - firstCSSProperty))
appendBackgroundPropertyAsText(result, numDecls);
ASSERT(!numDecls ^ !result.isEmpty());
return result.toString();
}