static PassRefPtrWillBeRawPtr<CSSValue> parseKeywordValue(CSSPropertyID propertyId, const String& string)
{
ASSERT(!string.isEmpty());
if (!CSSParserFastPaths::isKeywordPropertyID(propertyId)) {
// All properties accept the values of "initial" and "inherit".
String lowerCaseString = string.lower();
if (lowerCaseString != "initial" && lowerCaseString != "inherit")
return nullptr;
// Parse initial/inherit shorthands using the CSSPropertyParser.
if (shorthandForProperty(propertyId).length())
return nullptr;
}
CSSParserString cssString;
cssString.init(string);
CSSValueID valueID = cssValueKeywordID(cssString);
if (!valueID)
return nullptr;
if (valueID == CSSValueInherit)
return cssValuePool().createInheritedValue();
if (valueID == CSSValueInitial)
return cssValuePool().createExplicitInitialValue();
if (CSSParserFastPaths::isValidKeywordPropertyAndValue(propertyId, valueID))
return cssValuePool().createIdentifierValue(valueID);
return nullptr;
}
static CSSValue* parseKeywordValue(CSSPropertyID propertyId,
const String& string,
CSSParserMode parserMode) {
ASSERT(!string.isEmpty());
if (!CSSParserFastPaths::isKeywordPropertyID(propertyId)) {
// All properties accept the values of "initial" and "inherit".
if (!equalIgnoringASCIICase(string, "initial") &&
!equalIgnoringASCIICase(string, "inherit"))
return nullptr;
// Parse initial/inherit shorthands using the CSSPropertyParser.
if (shorthandForProperty(propertyId).length())
return nullptr;
// Descriptors do not support css wide keywords.
if (CSSPropertyMetadata::isDescriptorOnly(propertyId))
return nullptr;
}
CSSValueID valueID = cssValueKeywordID(string);
if (!valueID)
return nullptr;
if (valueID == CSSValueInherit)
return CSSInheritedValue::create();
if (valueID == CSSValueInitial)
return CSSInitialValue::create();
if (CSSParserFastPaths::isValidKeywordPropertyAndValue(propertyId, valueID,
parserMode))
return CSSIdentifierValue::create(valueID);
return nullptr;
}
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());
}
bool MutableStylePropertySet::removeShorthandProperty(CSSPropertyID propertyID)
{
StylePropertyShorthand shorthand = shorthandForProperty(propertyID);
if (!shorthand.length())
return false;
return removePropertiesInSet(shorthand.properties(), shorthand.length());
}
bool isExpandedShorthand(CSSPropertyID id)
{
// The system fonts bypass the normal style resolution by using RenderTheme,
// thus we need to special case it here. FIXME: This is a violation of CSS 3 Fonts
// as we should still be able to change the longhands.
// DON'T ADD ANY SHORTHAND HERE UNLESS IT ISN'T ALWAYS EXPANDED AT PARSE TIME (which is wrong).
if (id == CSSPropertyFont)
return false;
return shorthandForProperty(id).length();
}
bool StylePropertySet::shorthandIsImportant(CSSPropertyID propertyID) const
{
StylePropertyShorthand shorthand = shorthandForProperty(propertyID);
if (!shorthand.length())
return false;
for (unsigned i = 0; i < shorthand.length(); ++i) {
if (!propertyIsImportant(shorthand.properties()[i]))
return false;
}
return true;
}
void MutableStylePropertySet::setProperty(CSSPropertyID propertyID, PassRefPtrWillBeRawPtr<CSSValue> prpValue, bool important)
{
StylePropertyShorthand shorthand = shorthandForProperty(propertyID);
if (!shorthand.length()) {
setProperty(CSSProperty(propertyID, prpValue, important));
return;
}
removePropertiesInSet(shorthand.properties(), shorthand.length());
RefPtrWillBeRawPtr<CSSValue> value = prpValue;
for (unsigned i = 0; i < shorthand.length(); ++i)
m_propertyVector.append(CSSProperty(shorthand.properties()[i], value, important));
}
bool isExpandedShorthandForAll(CSSPropertyID propertyId)
{
// FIXME: isExpandedShorthand says "font" is not an expanded shorthand,
// but font is expanded to font-family, font-size, and so on.
// StylePropertySerializer::asText should not generate css text like
// "font: initial; font-family: initial;...". To avoid this, we need to
// treat "font" as an expanded shorthand.
// And while applying "all" property, we cannot apply "font" property
// directly. This causes ASSERT crash, because StyleBuilder assume that
// all given properties are not expanded shorthands.
// "marker" has the same issue.
if (propertyId == CSSPropertyMarker || propertyId == CSSPropertyFont)
return true;
return shorthandForProperty(propertyId).length();
}
// Returns an empty list if the property is not a shorthand, otherwise the list of longhands for parsing.
const StylePropertyShorthand& parsingShorthandForProperty(CSSPropertyID propertyID)
{
switch (propertyID) {
case CSSPropertyAnimation:
return animationShorthandForParsing();
case CSSPropertyBorder:
return borderShorthandForParsing();
case CSSPropertyWebkitAnimation:
return webkitAnimationShorthandForParsing();
case CSSPropertyTransition:
return transitionShorthandForParsing();
case CSSPropertyWebkitTransition:
return webkitTransitionShorthandForParsing();
default:
return shorthandForProperty(propertyID);
}
}
void CSSAnimations::calculateTransitionUpdate(CSSAnimationUpdate& update, const Element* animatingElement, const ComputedStyle& style)
{
if (!animatingElement)
return;
if (animatingElement->document().printing() || animatingElement->document().wasPrinting())
return;
ElementAnimations* elementAnimations = animatingElement->elementAnimations();
const TransitionMap* activeTransitions = elementAnimations ? &elementAnimations->cssAnimations().m_transitions : nullptr;
const CSSTransitionData* transitionData = style.transitions();
#if ENABLE(ASSERT)
// In debug builds we verify that it would have been safe to avoid populating and testing listedProperties if the style recalc is due to animation.
const bool animationStyleRecalc = false;
#else
// In release builds we avoid the cost of checking for new and interrupted transitions if the style recalc is due to animation.
const bool animationStyleRecalc = elementAnimations && elementAnimations->isAnimationStyleChange();
#endif
BitArray<numCSSProperties> listedProperties;
bool anyTransitionHadTransitionAll = false;
const LayoutObject* layoutObject = animatingElement->layoutObject();
if (!animationStyleRecalc && style.display() != NONE && layoutObject && layoutObject->style() && transitionData) {
const ComputedStyle& oldStyle = *layoutObject->style();
for (size_t i = 0; i < transitionData->propertyList().size(); ++i) {
const CSSTransitionData::TransitionProperty& transitionProperty = transitionData->propertyList()[i];
if (transitionProperty.propertyType != CSSTransitionData::TransitionKnownProperty)
continue;
CSSPropertyID property = resolveCSSPropertyID(transitionProperty.unresolvedProperty);
bool animateAll = property == CSSPropertyAll;
if (animateAll)
anyTransitionHadTransitionAll = true;
const StylePropertyShorthand& propertyList = animateAll ? CSSAnimations::propertiesForTransitionAll() : shorthandForProperty(property);
// If not a shorthand we only execute one iteration of this loop, and refer to the property directly.
for (unsigned j = 0; !j || j < propertyList.length(); ++j) {
CSSPropertyID id = propertyList.length() ? propertyList.properties()[j] : property;
ASSERT(id >= firstCSSProperty);
if (!animateAll) {
if (CSSPropertyMetadata::isInterpolableProperty(id))
listedProperties.set(id - firstCSSProperty);
else
continue;
}
// FIXME: We should transition if an !important property changes even when an animation is running,
// but this is a bit hard to do with the current applyMatchedProperties system.
PropertyHandle property = PropertyHandle(id);
if (!update.activeInterpolationsForAnimations().contains(property)
&& (!elementAnimations || !elementAnimations->cssAnimations().m_previousActiveInterpolationsForAnimations.contains(property))) {
calculateTransitionUpdateForProperty(id, *transitionData, i, oldStyle, style, activeTransitions, update, animatingElement);
}
}
}
}
if (activeTransitions) {
for (const auto& entry : *activeTransitions) {
CSSPropertyID id = entry.key;
if (!anyTransitionHadTransitionAll && !animationStyleRecalc && !listedProperties.get(id - firstCSSProperty)) {
// TODO: Figure out why this fails on Chrome OS login page. crbug.com/365507
// ASSERT(animation.playStateInternal() == Animation::Finished || !(elementAnimations && elementAnimations->isAnimationStyleChange()));
update.cancelTransition(id);
} else if (entry.value.animation->finishedInternal()) {
update.finishTransition(id);
}
}
}
}
bool isShorthandProperty(CSSPropertyID id)
{
return shorthandForProperty(id).length();
}
void CSSAnimations::calculateTransitionUpdate(CSSAnimationUpdate* update, const Element* element, const RenderStyle& style)
{
if (!element)
return;
ActiveAnimations* activeAnimations = element->activeAnimations();
const TransitionMap* activeTransitions = activeAnimations ? &activeAnimations->cssAnimations().m_transitions : 0;
const CSSTransitionData* transitionData = style.transitions();
#if ENABLE(ASSERT)
// In debug builds we verify that it would have been safe to avoid populating and testing listedProperties if the style recalc is due to animation.
const bool animationStyleRecalc = false;
#else
// In release builds we avoid the cost of checking for new and interrupted transitions if the style recalc is due to animation.
const bool animationStyleRecalc = activeAnimations && activeAnimations->isAnimationStyleChange();
#endif
BitArray<numCSSProperties> listedProperties;
bool anyTransitionHadTransitionAll = false;
const RenderObject* renderer = element->renderer();
if (!animationStyleRecalc && style.display() != NONE && renderer && renderer->style() && transitionData) {
const RenderStyle& oldStyle = *renderer->style();
for (size_t i = 0; i < transitionData->propertyList().size(); ++i) {
const CSSTransitionData::TransitionProperty& transitionProperty = transitionData->propertyList()[i];
CSSTransitionData::TransitionPropertyType mode = transitionProperty.propertyType;
CSSPropertyID property = transitionProperty.propertyId;
if (mode == CSSTransitionData::TransitionNone || mode == CSSTransitionData::TransitionUnknown)
continue;
bool animateAll = mode == CSSTransitionData::TransitionAll;
ASSERT(animateAll || mode == CSSTransitionData::TransitionSingleProperty);
if (animateAll)
anyTransitionHadTransitionAll = true;
const StylePropertyShorthand& propertyList = animateAll ? CSSAnimations::animatableProperties() : shorthandForProperty(property);
// If not a shorthand we only execute one iteration of this loop, and refer to the property directly.
for (unsigned j = 0; !j || j < propertyList.length(); ++j) {
CSSPropertyID id = propertyList.length() ? propertyList.properties()[j] : property;
CSSPropertyID eventId = id;
if (!animateAll) {
id = propertyForAnimation(id);
if (CSSPropertyMetadata::isAnimatableProperty(id))
listedProperties.set(id);
else
continue;
}
if (!update->activeInterpolationsForAnimations().contains(id)
&& (!activeAnimations || !activeAnimations->cssAnimations().m_previousActiveInterpolationsForAnimations.contains(id))) {
calculateTransitionUpdateForProperty(id, eventId, *transitionData, i, oldStyle, style, activeTransitions, update, element);
}
}
}
}
if (activeTransitions) {
for (TransitionMap::const_iterator iter = activeTransitions->begin(); iter != activeTransitions->end(); ++iter) {
const AnimationPlayer& player = *iter->value.player;
CSSPropertyID id = iter->key;
if (player.finishedInternal() || (!anyTransitionHadTransitionAll && !animationStyleRecalc && !listedProperties.get(id))) {
// TODO: Figure out why this fails on Chrome OS login page. crbug.com/365507
// ASSERT(player.finishedInternal() || !(activeAnimations && activeAnimations->isAnimationStyleChange()));
update->cancelTransition(id);
}
}
}
}
static void computeCandidateTransitions(const RenderStyle& oldStyle, const RenderStyle& newStyle, CandidateTransitionMap& candidateMap, HashSet<CSSPropertyID>& listedProperties)
{
if (!newStyle.transitions())
return;
for (size_t i = 0; i < newStyle.transitions()->size(); ++i) {
const CSSAnimationData* anim = newStyle.transitions()->animation(i);
CSSAnimationData::AnimationMode mode = anim->animationMode();
if (anim->duration() + anim->delay() <= 0 || mode == CSSAnimationData::AnimateNone)
continue;
bool animateAll = mode == CSSAnimationData::AnimateAll;
ASSERT(animateAll || mode == CSSAnimationData::AnimateSingleProperty);
const StylePropertyShorthand& propertyList = animateAll ? CSSAnimations::animatableProperties() : shorthandForProperty(anim->property());
if (!propertyList.length()) {
if (!CSSAnimations::isAnimatableProperty(anim->property()))
continue;
listedProperties.add(anim->property());
calculateCandidateTransitionForProperty(anim, anim->property(), oldStyle, newStyle, candidateMap);
} else {
for (unsigned i = 0; i < propertyList.length(); ++i) {
CSSPropertyID id = propertyList.properties()[i];
if (!animateAll && !CSSAnimations::isAnimatableProperty(id))
continue;
listedProperties.add(id);
calculateCandidateTransitionForProperty(anim, id, oldStyle, newStyle, candidateMap);
}
}
}
}