Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(370)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: Source/core/css/parser/BisonCSSParser-in.cpp

Issue 185293006: Move almost all of CSSPropertyParser into CSSPropertyParser.cpp (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Fix link errors Created 6 years, 10 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « Source/core/css/parser/BisonCSSParser.h ('k') | Source/core/css/parser/CSSPropertyParser.h » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: Source/core/css/parser/BisonCSSParser-in.cpp
diff --git a/Source/core/css/parser/BisonCSSParser-in.cpp b/Source/core/css/parser/BisonCSSParser-in.cpp
index 022c07e1831700fb36d38b0198e9c2a5de3bf986..a930e6f4d4dae82399403e2d72ac3f842381311b 100644
--- a/Source/core/css/parser/BisonCSSParser-in.cpp
+++ b/Source/core/css/parser/BisonCSSParser-in.cpp
@@ -104,84 +104,6 @@ using namespace WTF;
namespace WebCore {
static const unsigned INVALID_NUM_PARSED_PROPERTIES = UINT_MAX;
-static const double MAX_SCALE = 1000000;
-
-template <unsigned N>
-static bool equal(const CSSParserString& a, const char (&b)[N])
-{
- unsigned length = N - 1; // Ignore the trailing null character
- if (a.length() != length)
- return false;
-
- return a.is8Bit() ? WTF::equal(a.characters8(), reinterpret_cast<const LChar*>(b), length) : WTF::equal(a.characters16(), reinterpret_cast<const LChar*>(b), length);
-}
-
-template <unsigned N>
-static bool equalIgnoringCase(const CSSParserString& a, const char (&b)[N])
-{
- unsigned length = N - 1; // Ignore the trailing null character
- if (a.length() != length)
- return false;
-
- return a.is8Bit() ? WTF::equalIgnoringCase(b, a.characters8(), length) : WTF::equalIgnoringCase(b, a.characters16(), length);
-}
-
-template <unsigned N>
-static bool equalIgnoringCase(CSSParserValue* value, const char (&b)[N])
-{
- ASSERT(value->unit == CSSPrimitiveValue::CSS_IDENT || value->unit == CSSPrimitiveValue::CSS_STRING);
- return equalIgnoringCase(value->string, b);
-}
-
-static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createPrimitiveValuePair(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> first, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> second, Pair::IdenticalValuesPolicy identicalValuesPolicy = Pair::DropIdenticalValues)
-{
- return cssValuePool().createValue(Pair::create(first, second, identicalValuesPolicy));
-}
-
-class AnimationParseContext {
-public:
- AnimationParseContext()
- : m_animationPropertyKeywordAllowed(true)
- , m_firstAnimationCommitted(false)
- , m_hasSeenAnimationPropertyKeyword(false)
- {
- }
-
- void commitFirstAnimation()
- {
- m_firstAnimationCommitted = true;
- }
-
- bool hasCommittedFirstAnimation() const
- {
- return m_firstAnimationCommitted;
- }
-
- void commitAnimationPropertyKeyword()
- {
- m_animationPropertyKeywordAllowed = false;
- }
-
- bool animationPropertyKeywordAllowed() const
- {
- return m_animationPropertyKeywordAllowed;
- }
-
- bool hasSeenAnimationPropertyKeyword() const
- {
- return m_hasSeenAnimationPropertyKeyword;
- }
-
- void sawAnimationPropertyKeyword()
- {
- m_hasSeenAnimationPropertyKeyword = true;
- }
-
-private:
- bool m_animationPropertyKeywordAllowed;
- bool m_firstAnimationCommitted;
- bool m_hasSeenAnimationPropertyKeyword;
-};
BisonCSSParser::BisonCSSParser(const CSSParserContext& context)
: m_context(context)
@@ -441,7 +363,7 @@ static bool parseSimpleLengthValue(MutableStylePropertySet* declaration, CSSProp
return true;
}
-static inline bool isValidKeywordPropertyAndValue(CSSPropertyID propertyId, int valueID, const CSSParserContext& parserContext)
+bool isValidKeywordPropertyAndValue(CSSPropertyID propertyId, int valueID, const CSSParserContext& parserContext)
{
if (!valueID)
return false;
@@ -812,7 +734,7 @@ static inline bool isValidKeywordPropertyAndValue(CSSPropertyID propertyId, int
return false;
}
-static inline bool isKeywordPropertyID(CSSPropertyID propertyId)
+bool isKeywordPropertyID(CSSPropertyID propertyId)
{
switch (propertyId) {
case CSSPropertyMixBlendMode:
@@ -1334,42 +1256,6 @@ PassRefPtr<ImmutableStylePropertySet> BisonCSSParser::createStylePropertySet()
return ImmutableStylePropertySet::create(results.data(), results.size(), mode);
}
-void CSSPropertyParser::addPropertyWithPrefixingVariant(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> value, bool important, bool implicit)
-{
- RefPtrWillBeRawPtr<CSSValue> val = value.get();
- addProperty(propId, value, important, implicit);
-
- CSSPropertyID prefixingVariant = prefixingVariantForPropertyId(propId);
- if (prefixingVariant == propId)
- return;
-
- if (m_currentShorthand) {
- // We can't use ShorthandScope here as we can already be inside one (e.g we are parsing CSSTransition).
- m_currentShorthand = prefixingVariantForPropertyId(m_currentShorthand);
- addProperty(prefixingVariant, val.release(), important, implicit);
- m_currentShorthand = prefixingVariantForPropertyId(m_currentShorthand);
- } else {
- addProperty(prefixingVariant, val.release(), important, implicit);
- }
-}
-
-void CSSPropertyParser::addProperty(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> value, bool important, bool implicit)
-{
- // This property doesn't belong to a shorthand.
- if (!m_currentShorthand) {
- m_parsedProperties.append(CSSProperty(propId, value, important, false, CSSPropertyInvalid, m_implicitShorthand || implicit));
- return;
- }
-
- Vector<StylePropertyShorthand, 4> shorthands;
- getMatchingShorthandsForLonghand(propId, &shorthands);
- // The longhand does not belong to multiple shorthands.
- if (shorthands.size() == 1)
- m_parsedProperties.append(CSSProperty(propId, value, important, true, CSSPropertyInvalid, m_implicitShorthand || implicit));
- else
- m_parsedProperties.append(CSSProperty(propId, value, important, true, indexOfShorthandForLonghand(m_currentShorthand, shorthands), m_implicitShorthand || implicit));
-}
-
void BisonCSSParser::rollbackLastProperties(int num)
{
ASSERT(num >= 0);
@@ -1377,13 +1263,6 @@ void BisonCSSParser::rollbackLastProperties(int num)
m_parsedProperties.shrink(m_parsedProperties.size() - num);
}
-void CSSPropertyParser::rollbackLastProperties(int num)
-{
- ASSERT(num >= 0);
- ASSERT(m_parsedProperties.size() >= static_cast<unsigned>(num));
- m_parsedProperties.shrink(m_parsedProperties.size() - num);
-}
-
void BisonCSSParser::clearProperties()
{
m_parsedProperties.clear();
@@ -1391,7895 +1270,234 @@ void BisonCSSParser::clearProperties()
m_hasFontFaceOnlyValues = false;
}
-KURL CSSPropertyParser::completeURL(const String& url) const
+void BisonCSSParser::setCurrentProperty(CSSPropertyID propId)
{
- return m_context.completeURL(url);
+ m_id = propId;
}
-bool CSSPropertyParser::validCalculationUnit(CSSParserValue* value, Units unitflags, ReleaseParsedCalcValueCondition releaseCalc)
+bool BisonCSSParser::parseValue(CSSPropertyID propId, bool important)
{
- bool mustBeNonNegative = unitflags & FNonNeg;
+ CSSPropertyParser parser(m_valueList, m_context, m_inViewport, m_important, m_parsedProperties, m_hasFontFaceOnlyValues);
+ return parser.parseValue(propId, important);
+}
- if (!parseCalculation(value, mustBeNonNegative ? ValueRangeNonNegative : ValueRangeAll))
- return false;
- bool b = false;
- switch (m_parsedCalculation->category()) {
- case CalcLength:
- b = (unitflags & FLength);
- break;
- case CalcPercent:
- b = (unitflags & FPercent);
- if (b && mustBeNonNegative && m_parsedCalculation->isNegative())
- b = false;
- break;
- case CalcNumber:
- b = (unitflags & FNumber);
- if (!b && (unitflags & FInteger) && m_parsedCalculation->isInt())
- b = true;
- if (b && mustBeNonNegative && m_parsedCalculation->isNegative())
- b = false;
- break;
- case CalcPercentLength:
- b = (unitflags & FPercent) && (unitflags & FLength);
- break;
- case CalcPercentNumber:
- b = (unitflags & FPercent) && (unitflags & FNumber);
- break;
- case CalcOther:
- break;
- }
- if (!b || releaseCalc == ReleaseParsedCalcValue)
- m_parsedCalculation.release();
- return b;
-}
+class TransformOperationInfo {
+public:
+ TransformOperationInfo(const CSSParserString& name)
+ : m_type(CSSTransformValue::UnknownTransformOperation)
+ , m_argCount(1)
+ , m_allowSingleArgument(false)
+ , m_unit(CSSPropertyParser::FUnknown)
+ {
+ const UChar* characters;
+ unsigned nameLength = name.length();
-inline bool CSSPropertyParser::shouldAcceptUnitLessValues(CSSParserValue* value, Units unitflags, CSSParserMode cssParserMode)
-{
- // Quirks mode and presentation attributes accept unit less values.
- return (unitflags & (FLength | FAngle | FTime)) && (!value->fValue || isUnitLessLengthParsingEnabledForMode(cssParserMode));
-}
+ const unsigned longestNameLength = 12;
+ UChar characterBuffer[longestNameLength];
+ if (name.is8Bit()) {
+ unsigned length = std::min(longestNameLength, nameLength);
+ const LChar* characters8 = name.characters8();
+ for (unsigned i = 0; i < length; ++i)
+ characterBuffer[i] = characters8[i];
+ characters = characterBuffer;
+ } else
+ characters = name.characters16();
-bool CSSPropertyParser::validUnit(CSSParserValue* value, Units unitflags, CSSParserMode cssParserMode, ReleaseParsedCalcValueCondition releaseCalc)
-{
- if (isCalculation(value))
- return validCalculationUnit(value, unitflags, releaseCalc);
-
- bool b = false;
- switch (value->unit) {
- case CSSPrimitiveValue::CSS_NUMBER:
- b = (unitflags & FNumber);
- if (!b && shouldAcceptUnitLessValues(value, unitflags, cssParserMode)) {
- value->unit = (unitflags & FLength) ? CSSPrimitiveValue::CSS_PX :
- ((unitflags & FAngle) ? CSSPrimitiveValue::CSS_DEG : CSSPrimitiveValue::CSS_MS);
- b = true;
+ SWITCH(characters, nameLength) {
+ CASE("skew(") {
+ m_unit = CSSPropertyParser::FAngle;
+ m_type = CSSTransformValue::SkewTransformOperation;
+ m_allowSingleArgument = true;
+ m_argCount = 3;
+ }
+ CASE("scale(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::ScaleTransformOperation;
+ m_allowSingleArgument = true;
+ m_argCount = 3;
+ }
+ CASE("skewx(") {
+ m_unit = CSSPropertyParser::FAngle;
+ m_type = CSSTransformValue::SkewXTransformOperation;
+ }
+ CASE("skewy(") {
+ m_unit = CSSPropertyParser::FAngle;
+ m_type = CSSTransformValue::SkewYTransformOperation;
+ }
+ CASE("matrix(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::MatrixTransformOperation;
+ m_argCount = 11;
+ }
+ CASE("rotate(") {
+ m_unit = CSSPropertyParser::FAngle;
+ m_type = CSSTransformValue::RotateTransformOperation;
+ }
+ CASE("scalex(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::ScaleXTransformOperation;
+ }
+ CASE("scaley(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::ScaleYTransformOperation;
+ }
+ CASE("scalez(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::ScaleZTransformOperation;
+ }
+ CASE("scale3d(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::Scale3DTransformOperation;
+ m_argCount = 5;
+ }
+ CASE("rotatex(") {
+ m_unit = CSSPropertyParser::FAngle;
+ m_type = CSSTransformValue::RotateXTransformOperation;
+ }
+ CASE("rotatey(") {
+ m_unit = CSSPropertyParser::FAngle;
+ m_type = CSSTransformValue::RotateYTransformOperation;
+ }
+ CASE("rotatez(") {
+ m_unit = CSSPropertyParser::FAngle;
+ m_type = CSSTransformValue::RotateZTransformOperation;
+ }
+ CASE("matrix3d(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::Matrix3DTransformOperation;
+ m_argCount = 31;
+ }
+ CASE("rotate3d(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::Rotate3DTransformOperation;
+ m_argCount = 7;
+ }
+ CASE("translate(") {
+ m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
+ m_type = CSSTransformValue::TranslateTransformOperation;
+ m_allowSingleArgument = true;
+ m_argCount = 3;
+ }
+ CASE("translatex(") {
+ m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
+ m_type = CSSTransformValue::TranslateXTransformOperation;
+ }
+ CASE("translatey(") {
+ m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
+ m_type = CSSTransformValue::TranslateYTransformOperation;
+ }
+ CASE("translatez(") {
+ m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
+ m_type = CSSTransformValue::TranslateZTransformOperation;
+ }
+ CASE("perspective(") {
+ m_unit = CSSPropertyParser::FNumber;
+ m_type = CSSTransformValue::PerspectiveTransformOperation;
+ }
+ CASE("translate3d(") {
+ m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
+ m_type = CSSTransformValue::Translate3DTransformOperation;
+ m_argCount = 5;
+ }
}
- if (!b && (unitflags & FInteger) && value->isInt)
- b = true;
- if (!b && (unitflags & FPositiveInteger) && value->isInt && value->fValue > 0)
- b = true;
- break;
- case CSSPrimitiveValue::CSS_PERCENTAGE:
- b = (unitflags & FPercent);
- break;
- case CSSParserValue::Q_EMS:
- case CSSPrimitiveValue::CSS_EMS:
- case CSSPrimitiveValue::CSS_REMS:
- case CSSPrimitiveValue::CSS_CHS:
- case CSSPrimitiveValue::CSS_EXS:
- case CSSPrimitiveValue::CSS_PX:
- case CSSPrimitiveValue::CSS_CM:
- case CSSPrimitiveValue::CSS_MM:
- case CSSPrimitiveValue::CSS_IN:
- case CSSPrimitiveValue::CSS_PT:
- case CSSPrimitiveValue::CSS_PC:
- case CSSPrimitiveValue::CSS_VW:
- case CSSPrimitiveValue::CSS_VH:
- case CSSPrimitiveValue::CSS_VMIN:
- case CSSPrimitiveValue::CSS_VMAX:
- b = (unitflags & FLength);
- break;
- case CSSPrimitiveValue::CSS_MS:
- case CSSPrimitiveValue::CSS_S:
- b = (unitflags & FTime);
- break;
- case CSSPrimitiveValue::CSS_DEG:
- case CSSPrimitiveValue::CSS_RAD:
- case CSSPrimitiveValue::CSS_GRAD:
- case CSSPrimitiveValue::CSS_TURN:
- b = (unitflags & FAngle);
- break;
- case CSSPrimitiveValue::CSS_DPPX:
- case CSSPrimitiveValue::CSS_DPI:
- case CSSPrimitiveValue::CSS_DPCM:
- b = (unitflags & FResolution);
- break;
- case CSSPrimitiveValue::CSS_HZ:
- case CSSPrimitiveValue::CSS_KHZ:
- case CSSPrimitiveValue::CSS_DIMENSION:
- default:
- break;
}
- if (b && unitflags & FNonNeg && value->fValue < 0)
- b = false;
- return b;
-}
-inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::createPrimitiveNumericValue(CSSParserValue* value)
-{
- if (m_parsedCalculation) {
- ASSERT(isCalculation(value));
- return CSSPrimitiveValue::create(m_parsedCalculation.release());
- }
+ CSSTransformValue::TransformOperationType type() const { return m_type; }
+ unsigned argCount() const { return m_argCount; }
+ CSSPropertyParser::Units unit() const { return m_unit; }
- ASSERT((value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ)
- || (value->unit >= CSSPrimitiveValue::CSS_TURN && value->unit <= CSSPrimitiveValue::CSS_CHS)
- || (value->unit >= CSSPrimitiveValue::CSS_VW && value->unit <= CSSPrimitiveValue::CSS_VMAX)
- || (value->unit >= CSSPrimitiveValue::CSS_DPPX && value->unit <= CSSPrimitiveValue::CSS_DPCM));
- return cssValuePool().createValue(value->fValue, static_cast<CSSPrimitiveValue::UnitTypes>(value->unit));
-}
+ bool unknown() const { return m_type == CSSTransformValue::UnknownTransformOperation; }
+ bool hasCorrectArgCount(unsigned argCount) { return m_argCount == argCount || (m_allowSingleArgument && argCount == 1); }
-inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::createPrimitiveStringValue(CSSParserValue* value)
-{
- ASSERT(value->unit == CSSPrimitiveValue::CSS_STRING || value->unit == CSSPrimitiveValue::CSS_IDENT);
- return cssValuePool().createValue(value->string, CSSPrimitiveValue::CSS_STRING);
-}
+private:
+ CSSTransformValue::TransformOperationType m_type;
+ unsigned m_argCount;
+ bool m_allowSingleArgument;
+ CSSPropertyParser::Units m_unit;
+};
-static inline bool isComma(CSSParserValue* value)
+PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseTransform()
{
- return value && value->unit == CSSParserValue::Operator && value->iValue == ',';
-}
+ if (!m_valueList)
+ return nullptr;
-static inline bool isForwardSlashOperator(CSSParserValue* value)
-{
- ASSERT(value);
- return value->unit == CSSParserValue::Operator && value->iValue == '/';
-}
+ RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ RefPtrWillBeRawPtr<CSSValue> parsedTransformValue = parseTransformValue(value);
+ if (!parsedTransformValue)
+ return nullptr;
-static bool isGeneratedImageValue(CSSParserValue* val)
-{
- if (val->unit != CSSParserValue::Function)
- return false;
+ list->append(parsedTransformValue.release());
+ }
- return equalIgnoringCase(val->function->name, "-webkit-gradient(")
- || equalIgnoringCase(val->function->name, "-webkit-linear-gradient(")
- || equalIgnoringCase(val->function->name, "linear-gradient(")
- || equalIgnoringCase(val->function->name, "-webkit-repeating-linear-gradient(")
- || equalIgnoringCase(val->function->name, "repeating-linear-gradient(")
- || equalIgnoringCase(val->function->name, "-webkit-radial-gradient(")
- || equalIgnoringCase(val->function->name, "radial-gradient(")
- || equalIgnoringCase(val->function->name, "-webkit-repeating-radial-gradient(")
- || equalIgnoringCase(val->function->name, "repeating-radial-gradient(")
- || equalIgnoringCase(val->function->name, "-webkit-canvas(")
- || equalIgnoringCase(val->function->name, "-webkit-cross-fade(");
+ return list.release();
}
-bool CSSPropertyParser::validWidthOrHeight(CSSParserValue* value)
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTransformValue(CSSParserValue *value)
{
- int id = value->id;
- if (id == CSSValueIntrinsic || id == CSSValueMinIntrinsic || id == CSSValueWebkitMinContent || id == CSSValueWebkitMaxContent || id == CSSValueWebkitFillAvailable || id == CSSValueWebkitFitContent)
- return true;
- return !id && validUnit(value, FLength | FPercent | FNonNeg);
-}
+ if (value->unit != CSSParserValue::Function || !value->function)
+ return nullptr;
-inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseValidPrimitive(CSSValueID identifier, CSSParserValue* value)
-{
- if (identifier)
- return cssValuePool().createIdentifierValue(identifier);
- if (value->unit == CSSPrimitiveValue::CSS_STRING)
- return createPrimitiveStringValue(value);
- if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ)
- return createPrimitiveNumericValue(value);
- if (value->unit >= CSSPrimitiveValue::CSS_TURN && value->unit <= CSSPrimitiveValue::CSS_CHS)
- return createPrimitiveNumericValue(value);
- if (value->unit >= CSSPrimitiveValue::CSS_VW && value->unit <= CSSPrimitiveValue::CSS_VMAX)
- return createPrimitiveNumericValue(value);
- if (value->unit >= CSSPrimitiveValue::CSS_DPPX && value->unit <= CSSPrimitiveValue::CSS_DPCM)
- return createPrimitiveNumericValue(value);
- if (value->unit >= CSSParserValue::Q_EMS)
- return CSSPrimitiveValue::createAllowingMarginQuirk(value->fValue, CSSPrimitiveValue::CSS_EMS);
- if (isCalculation(value))
- return CSSPrimitiveValue::create(m_parsedCalculation.release());
-
- return nullptr;
-}
+ // Every primitive requires at least one argument.
+ CSSParserValueList* args = value->function->args.get();
+ if (!args)
+ return nullptr;
-void CSSPropertyParser::addExpandedPropertyForValue(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> prpValue, bool important)
-{
- const StylePropertyShorthand& shorthand = shorthandForProperty(propId);
- unsigned shorthandLength = shorthand.length();
- if (!shorthandLength) {
- addProperty(propId, prpValue, important);
- return;
- }
+ // See if the specified primitive is one we understand.
+ TransformOperationInfo info(value->function->name);
+ if (info.unknown())
+ return nullptr;
- RefPtrWillBeRawPtr<CSSValue> value = prpValue;
- ShorthandScope scope(this, propId);
- const CSSPropertyID* longhands = shorthand.properties();
- for (unsigned i = 0; i < shorthandLength; ++i)
- addProperty(longhands[i], value, important);
-}
-
-void BisonCSSParser::setCurrentProperty(CSSPropertyID propId)
-{
- m_id = propId;
-}
-
-bool BisonCSSParser::parseValue(CSSPropertyID propId, bool important)
-{
- CSSPropertyParser parser(m_valueList, m_context, m_inViewport, m_important, m_parsedProperties, m_hasFontFaceOnlyValues);
- return parser.parseValue(propId, important);
-}
-
-bool CSSPropertyParser::parseValue(CSSPropertyID propId, bool important)
-{
- if (!isInternalPropertyAndValueParsingEnabledForMode(m_context.mode()) && isInternalProperty(propId))
- return false;
-
- // We don't count the UA style sheet in our statistics.
- if (m_context.useCounter())
- m_context.useCounter()->count(m_context, propId);
-
- if (!m_valueList)
- return false;
-
- CSSParserValue* value = m_valueList->current();
-
- if (!value)
- return false;
-
- if (inViewport()) {
- // Allow @viewport rules from UA stylesheets even if the feature is disabled.
- if (!RuntimeEnabledFeatures::cssViewportEnabled() && !isUASheetBehavior(m_context.mode()))
- return false;
-
- return parseViewportProperty(propId, important);
- }
-
- // Note: m_parsedCalculation is used to pass the calc value to validUnit and then cleared at the end of this function.
- // FIXME: This is to avoid having to pass parsedCalc to all validUnit callers.
- ASSERT(!m_parsedCalculation);
-
- CSSValueID id = value->id;
-
- int num = inShorthand() ? 1 : m_valueList->size();
-
- if (id == CSSValueInherit) {
- if (num != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool().createInheritedValue(), important);
- return true;
- }
- else if (id == CSSValueInitial) {
- if (num != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool().createExplicitInitialValue(), important);
- return true;
- }
-
- if (isKeywordPropertyID(propId)) {
- if (!isValidKeywordPropertyAndValue(propId, id, m_context))
- return false;
- if (m_valueList->next() && !inShorthand())
- return false;
- addProperty(propId, cssValuePool().createIdentifierValue(id), important);
- return true;
- }
-
- bool validPrimitive = false;
- RefPtrWillBeRawPtr<CSSValue> parsedValue;
-
- switch (propId) {
- case CSSPropertySize: // <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ]
- return parseSize(propId, important);
-
- case CSSPropertyQuotes: // [<string> <string>]+ | none | inherit
- if (id)
- validPrimitive = true;
- else
- return parseQuotes(propId, important);
- break;
- case CSSPropertyUnicodeBidi: // normal | embed | bidi-override | isolate | isolate-override | plaintext | inherit
- if (id == CSSValueNormal
- || id == CSSValueEmbed
- || id == CSSValueBidiOverride
- || id == CSSValueWebkitIsolate
- || id == CSSValueWebkitIsolateOverride
- || id == CSSValueWebkitPlaintext)
- validPrimitive = true;
- break;
-
- case CSSPropertyContent: // [ <string> | <uri> | <counter> | attr(X) | open-quote |
- // close-quote | no-open-quote | no-close-quote ]+ | inherit
- return parseContent(propId, important);
-
- case CSSPropertyClip: // <shape> | auto | inherit
- if (id == CSSValueAuto)
- validPrimitive = true;
- else if (value->unit == CSSParserValue::Function)
- return parseClipShape(propId, important);
- break;
-
- /* Start of supported CSS properties with validation. This is needed for parseShorthand to work
- * correctly and allows optimization in WebCore::applyRule(..)
- */
- case CSSPropertyOverflow: {
- ShorthandScope scope(this, propId);
- if (num != 1 || !parseValue(CSSPropertyOverflowY, important))
- return false;
-
- RefPtrWillBeRawPtr<CSSValue> overflowXValue;
-
- // FIXME: -webkit-paged-x or -webkit-paged-y only apply to overflow-y. If this value has been
- // set using the shorthand, then for now overflow-x will default to auto, but once we implement
- // pagination controls, it should default to hidden. If the overflow-y value is anything but
- // paged-x or paged-y, then overflow-x and overflow-y should have the same value.
- if (id == CSSValueWebkitPagedX || id == CSSValueWebkitPagedY)
- overflowXValue = cssValuePool().createIdentifierValue(CSSValueAuto);
- else
- overflowXValue = m_parsedProperties.last().value();
- addProperty(CSSPropertyOverflowX, overflowXValue.release(), important);
- return true;
- }
-
- case CSSPropertyTextAlign:
- // left | right | center | justify | -webkit-left | -webkit-right | -webkit-center | -webkit-match-parent
- // | start | end | <string> | inherit | -webkit-auto (converted to start)
- if ((id >= CSSValueWebkitAuto && id <= CSSValueWebkitMatchParent) || id == CSSValueStart || id == CSSValueEnd
- || value->unit == CSSPrimitiveValue::CSS_STRING)
- validPrimitive = true;
- break;
-
- case CSSPropertyFontWeight: { // normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | inherit
- if (m_valueList->size() != 1)
- return false;
- return parseFontWeight(important);
- }
- case CSSPropertyBorderSpacing: {
- if (num == 1) {
- ShorthandScope scope(this, CSSPropertyBorderSpacing);
- if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important))
- return false;
- CSSValue* value = m_parsedProperties.last().value();
- addProperty(CSSPropertyWebkitBorderVerticalSpacing, value, important);
- return true;
- }
- else if (num == 2) {
- ShorthandScope scope(this, CSSPropertyBorderSpacing);
- if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important) || !parseValue(CSSPropertyWebkitBorderVerticalSpacing, important))
- return false;
- return true;
- }
- return false;
- }
- case CSSPropertyWebkitBorderHorizontalSpacing:
- case CSSPropertyWebkitBorderVerticalSpacing:
- validPrimitive = validUnit(value, FLength | FNonNeg);
- break;
- case CSSPropertyOutlineColor: // <color> | invert | inherit
- // Outline color has "invert" as additional keyword.
- // Also, we want to allow the special focus color even in HTML Standard parsing mode.
- if (id == CSSValueInvert || id == CSSValueWebkitFocusRingColor) {
- validPrimitive = true;
- break;
- }
- /* nobreak */
- case CSSPropertyBackgroundColor: // <color> | inherit
- case CSSPropertyBorderTopColor: // <color> | inherit
- case CSSPropertyBorderRightColor:
- case CSSPropertyBorderBottomColor:
- case CSSPropertyBorderLeftColor:
- case CSSPropertyWebkitBorderStartColor:
- case CSSPropertyWebkitBorderEndColor:
- case CSSPropertyWebkitBorderBeforeColor:
- case CSSPropertyWebkitBorderAfterColor:
- case CSSPropertyColor: // <color> | inherit
- case CSSPropertyTextDecorationColor: // CSS3 text decoration colors
- case CSSPropertyTextLineThroughColor:
- case CSSPropertyTextUnderlineColor:
- case CSSPropertyTextOverlineColor:
- case CSSPropertyWebkitColumnRuleColor:
- case CSSPropertyWebkitTextEmphasisColor:
- case CSSPropertyWebkitTextFillColor:
- case CSSPropertyWebkitTextStrokeColor:
- if (propId == CSSPropertyTextDecorationColor
- && !RuntimeEnabledFeatures::css3TextDecorationsEnabled())
- return false;
-
- if ((id >= CSSValueAqua && id <= CSSValueWebkitText) || id == CSSValueMenu) {
- validPrimitive = isValueAllowedInMode(id, m_context.mode());
- } else {
- parsedValue = parseColor();
- if (parsedValue)
- m_valueList->next();
- }
- break;
-
- case CSSPropertyCursor: {
- // Grammar defined by CSS3 UI and modified by CSS4 images:
- // [ [<image> [<x> <y>]?,]*
- // [ auto | crosshair | default | pointer | progress | move | e-resize | ne-resize |
- // nw-resize | n-resize | se-resize | sw-resize | s-resize | w-resize | ew-resize |
- // ns-resize | nesw-resize | nwse-resize | col-resize | row-resize | text | wait | help |
- // vertical-text | cell | context-menu | alias | copy | no-drop | not-allowed | -webkit-zoom-in
- // -webkit-zoom-out | all-scroll | -webkit-grab | -webkit-grabbing ] ] | inherit
- RefPtrWillBeRawPtr<CSSValueList> list;
- while (value) {
- RefPtrWillBeRawPtr<CSSValue> image = nullptr;
- if (value->unit == CSSPrimitiveValue::CSS_URI) {
- String uri = value->string;
- if (!uri.isNull())
- image = CSSImageValue::create(uri, completeURL(uri));
- } else if (value->unit == CSSParserValue::Function && equalIgnoringCase(value->function->name, "-webkit-image-set(")) {
- image = parseImageSet(m_valueList.get());
- if (!image)
- break;
- } else
- break;
-
- Vector<int> coords;
- value = m_valueList->next();
- while (value && value->unit == CSSPrimitiveValue::CSS_NUMBER) {
- coords.append(int(value->fValue));
- value = m_valueList->next();
- }
- bool hasHotSpot = false;
- IntPoint hotSpot(-1, -1);
- int nrcoords = coords.size();
- if (nrcoords > 0 && nrcoords != 2)
- return false;
- if (nrcoords == 2) {
- hasHotSpot = true;
- hotSpot = IntPoint(coords[0], coords[1]);
- }
-
- if (!list)
- list = CSSValueList::createCommaSeparated();
-
- if (image)
- list->append(CSSCursorImageValue::create(image, hasHotSpot, hotSpot));
-
- if (!value || !(value->unit == CSSParserValue::Operator && value->iValue == ','))
- return false;
- value = m_valueList->next(); // comma
- }
- if (list) {
- if (!value)
- return false;
- if (inQuirksMode() && value->id == CSSValueHand) // MSIE 5 compatibility :/
- list->append(cssValuePool().createIdentifierValue(CSSValuePointer));
- else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitGrabbing) || value->id == CSSValueCopy || value->id == CSSValueNone)
- list->append(cssValuePool().createIdentifierValue(value->id));
- m_valueList->next();
- parsedValue = list.release();
- break;
- } else if (value) {
- id = value->id;
- if (inQuirksMode() && value->id == CSSValueHand) { // MSIE 5 compatibility :/
- id = CSSValuePointer;
- validPrimitive = true;
- } else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitGrabbing) || value->id == CSSValueCopy || value->id == CSSValueNone)
- validPrimitive = true;
- } else {
- ASSERT_NOT_REACHED();
- return false;
- }
- break;
- }
-
- case CSSPropertyBackgroundBlendMode:
- case CSSPropertyBackgroundAttachment:
- case CSSPropertyBackgroundClip:
- case CSSPropertyWebkitBackgroundClip:
- case CSSPropertyWebkitBackgroundComposite:
- case CSSPropertyBackgroundImage:
- case CSSPropertyBackgroundOrigin:
- case CSSPropertyMaskSourceType:
- case CSSPropertyWebkitBackgroundOrigin:
- case CSSPropertyBackgroundPosition:
- case CSSPropertyBackgroundPositionX:
- case CSSPropertyBackgroundPositionY:
- case CSSPropertyBackgroundSize:
- case CSSPropertyWebkitBackgroundSize:
- case CSSPropertyBackgroundRepeat:
- case CSSPropertyBackgroundRepeatX:
- case CSSPropertyBackgroundRepeatY:
- case CSSPropertyWebkitMaskClip:
- case CSSPropertyWebkitMaskComposite:
- case CSSPropertyWebkitMaskImage:
- case CSSPropertyWebkitMaskOrigin:
- case CSSPropertyWebkitMaskPosition:
- case CSSPropertyWebkitMaskPositionX:
- case CSSPropertyWebkitMaskPositionY:
- case CSSPropertyWebkitMaskSize:
- case CSSPropertyWebkitMaskRepeat:
- case CSSPropertyWebkitMaskRepeatX:
- case CSSPropertyWebkitMaskRepeatY:
- {
- RefPtrWillBeRawPtr<CSSValue> val1;
- RefPtrWillBeRawPtr<CSSValue> val2;
- CSSPropertyID propId1, propId2;
- bool result = false;
- if (parseFillProperty(propId, propId1, propId2, val1, val2)) {
- OwnPtr<ShorthandScope> shorthandScope;
- if (propId == CSSPropertyBackgroundPosition ||
- propId == CSSPropertyBackgroundRepeat ||
- propId == CSSPropertyWebkitMaskPosition ||
- propId == CSSPropertyWebkitMaskRepeat) {
- shorthandScope = adoptPtr(new ShorthandScope(this, propId));
- }
- addProperty(propId1, val1.release(), important);
- if (val2)
- addProperty(propId2, val2.release(), important);
- result = true;
- }
- m_implicitShorthand = false;
- return result;
- }
- case CSSPropertyObjectPosition:
- return RuntimeEnabledFeatures::objectFitPositionEnabled() && parseObjectPosition(important);
- case CSSPropertyListStyleImage: // <uri> | none | inherit
- case CSSPropertyBorderImageSource:
- case CSSPropertyWebkitMaskBoxImageSource:
- if (id == CSSValueNone) {
- parsedValue = cssValuePool().createIdentifierValue(CSSValueNone);
- m_valueList->next();
- } else if (value->unit == CSSPrimitiveValue::CSS_URI) {
- parsedValue = CSSImageValue::create(value->string, completeURL(value->string));
- m_valueList->next();
- } else if (isGeneratedImageValue(value)) {
- if (parseGeneratedImage(m_valueList.get(), parsedValue))
- m_valueList->next();
- else
- return false;
- }
- else if (value->unit == CSSParserValue::Function && equalIgnoringCase(value->function->name, "-webkit-image-set(")) {
- parsedValue = parseImageSet(m_valueList.get());
- if (!parsedValue)
- return false;
- m_valueList->next();
- }
- break;
-
- case CSSPropertyWebkitTextStrokeWidth:
- case CSSPropertyOutlineWidth: // <border-width> | inherit
- case CSSPropertyBorderTopWidth: //// <border-width> | inherit
- case CSSPropertyBorderRightWidth: // Which is defined as
- case CSSPropertyBorderBottomWidth: // thin | medium | thick | <length>
- case CSSPropertyBorderLeftWidth:
- case CSSPropertyWebkitBorderStartWidth:
- case CSSPropertyWebkitBorderEndWidth:
- case CSSPropertyWebkitBorderBeforeWidth:
- case CSSPropertyWebkitBorderAfterWidth:
- case CSSPropertyWebkitColumnRuleWidth:
- if (id == CSSValueThin || id == CSSValueMedium || id == CSSValueThick)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength | FNonNeg);
- break;
-
- case CSSPropertyLetterSpacing: // normal | <length> | inherit
- case CSSPropertyWordSpacing: // normal | <length> | inherit
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength);
- break;
-
- case CSSPropertyTextIndent:
- parsedValue = parseTextIndent();
- break;
-
- case CSSPropertyPaddingTop: //// <padding-width> | inherit
- case CSSPropertyPaddingRight: // Which is defined as
- case CSSPropertyPaddingBottom: // <length> | <percentage>
- case CSSPropertyPaddingLeft: ////
- case CSSPropertyWebkitPaddingStart:
- case CSSPropertyWebkitPaddingEnd:
- case CSSPropertyWebkitPaddingBefore:
- case CSSPropertyWebkitPaddingAfter:
- validPrimitive = (!id && validUnit(value, FLength | FPercent | FNonNeg));
- break;
-
- case CSSPropertyMaxWidth:
- case CSSPropertyWebkitMaxLogicalWidth:
- case CSSPropertyMaxHeight:
- case CSSPropertyWebkitMaxLogicalHeight:
- validPrimitive = (id == CSSValueNone || validWidthOrHeight(value));
- break;
-
- case CSSPropertyMinWidth:
- case CSSPropertyWebkitMinLogicalWidth:
- case CSSPropertyMinHeight:
- case CSSPropertyWebkitMinLogicalHeight:
- validPrimitive = validWidthOrHeight(value);
- break;
-
- case CSSPropertyWidth:
- case CSSPropertyWebkitLogicalWidth:
- case CSSPropertyHeight:
- case CSSPropertyWebkitLogicalHeight:
- validPrimitive = (id == CSSValueAuto || validWidthOrHeight(value));
- break;
-
- case CSSPropertyFontSize:
- return parseFontSize(important);
-
- case CSSPropertyFontVariant: // normal | small-caps | inherit
- return parseFontVariant(important);
-
- case CSSPropertyVerticalAlign:
- // baseline | sub | super | top | text-top | middle | bottom | text-bottom |
- // <percentage> | <length> | inherit
-
- if (id >= CSSValueBaseline && id <= CSSValueWebkitBaselineMiddle)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FLength | FPercent));
- break;
-
- case CSSPropertyBottom: // <length> | <percentage> | auto | inherit
- case CSSPropertyLeft: // <length> | <percentage> | auto | inherit
- case CSSPropertyRight: // <length> | <percentage> | auto | inherit
- case CSSPropertyTop: // <length> | <percentage> | auto | inherit
- case CSSPropertyMarginTop: //// <margin-width> | inherit
- case CSSPropertyMarginRight: // Which is defined as
- case CSSPropertyMarginBottom: // <length> | <percentage> | auto | inherit
- case CSSPropertyMarginLeft: ////
- case CSSPropertyWebkitMarginStart:
- case CSSPropertyWebkitMarginEnd:
- case CSSPropertyWebkitMarginBefore:
- case CSSPropertyWebkitMarginAfter:
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FLength | FPercent));
- break;
-
- case CSSPropertyOrphans: // <integer> | inherit | auto (We've added support for auto for backwards compatibility)
- case CSSPropertyWidows: // <integer> | inherit | auto (Ditto)
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FPositiveInteger, HTMLQuirksMode));
- break;
-
- case CSSPropertyZIndex: // auto | <integer> | inherit
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FInteger, HTMLQuirksMode));
- break;
-
- case CSSPropertyLineHeight:
- return parseLineHeight(important);
- case CSSPropertyCounterIncrement: // [ <identifier> <integer>? ]+ | none | inherit
- if (id != CSSValueNone)
- return parseCounter(propId, 1, important);
- validPrimitive = true;
- break;
- case CSSPropertyCounterReset: // [ <identifier> <integer>? ]+ | none | inherit
- if (id != CSSValueNone)
- return parseCounter(propId, 0, important);
- validPrimitive = true;
- break;
- case CSSPropertyFontFamily:
- // [[ <family-name> | <generic-family> ],]* [<family-name> | <generic-family>] | inherit
- {
- parsedValue = parseFontFamily();
- break;
- }
-
- case CSSPropertyTextDecoration:
- // Fall through 'text-decoration-line' parsing if CSS 3 Text Decoration
- // is disabled to match CSS 2.1 rules for parsing 'text-decoration'.
- if (RuntimeEnabledFeatures::css3TextDecorationsEnabled()) {
- // [ <text-decoration-line> || <text-decoration-style> || <text-decoration-color> ] | inherit
- return parseShorthand(CSSPropertyTextDecoration, textDecorationShorthand(), important);
- }
- case CSSPropertyWebkitTextDecorationsInEffect:
- case CSSPropertyTextDecorationLine:
- // none | [ underline || overline || line-through || blink ] | inherit
- return parseTextDecoration(propId, important);
-
- case CSSPropertyTextDecorationStyle:
- // solid | double | dotted | dashed | wavy
- if (RuntimeEnabledFeatures::css3TextDecorationsEnabled()
- && (id == CSSValueSolid || id == CSSValueDouble || id == CSSValueDotted || id == CSSValueDashed || id == CSSValueWavy))
- validPrimitive = true;
- break;
-
- case CSSPropertyTextUnderlinePosition:
- // auto | under | inherit
- if (RuntimeEnabledFeatures::css3TextDecorationsEnabled())
- return parseTextUnderlinePosition(important);
- return false;
-
- case CSSPropertyZoom: // normal | reset | document | <number> | <percentage> | inherit
- if (id == CSSValueNormal || id == CSSValueReset || id == CSSValueDocument)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FNumber | FPercent | FNonNeg, HTMLStandardMode));
- break;
-
- case CSSPropertySrc: // Only used within @font-face and @-webkit-filter, so cannot use inherit | initial or be !important. This is a list of urls or local references.
- return parseFontFaceSrc();
-
- case CSSPropertyUnicodeRange:
- return parseFontFaceUnicodeRange();
-
- /* CSS3 properties */
-
- case CSSPropertyBorderImage:
- case CSSPropertyWebkitMaskBoxImage:
- return parseBorderImageShorthand(propId, important);
- case CSSPropertyWebkitBorderImage: {
- if (RefPtrWillBeRawPtr<CSSValue> result = parseBorderImage(propId)) {
- addProperty(propId, result, important);
- return true;
- }
- return false;
- }
-
- case CSSPropertyBorderImageOutset:
- case CSSPropertyWebkitMaskBoxImageOutset: {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> result;
- if (parseBorderImageOutset(result)) {
- addProperty(propId, result, important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageRepeat:
- case CSSPropertyWebkitMaskBoxImageRepeat: {
- RefPtrWillBeRawPtr<CSSValue> result;
- if (parseBorderImageRepeat(result)) {
- addProperty(propId, result, important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageSlice:
- case CSSPropertyWebkitMaskBoxImageSlice: {
- RefPtrWillBeRawPtr<CSSBorderImageSliceValue> result;
- if (parseBorderImageSlice(propId, result)) {
- addProperty(propId, result, important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageWidth:
- case CSSPropertyWebkitMaskBoxImageWidth: {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> result;
- if (parseBorderImageWidth(result)) {
- addProperty(propId, result, important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderTopRightRadius:
- case CSSPropertyBorderTopLeftRadius:
- case CSSPropertyBorderBottomLeftRadius:
- case CSSPropertyBorderBottomRightRadius: {
- if (num != 1 && num != 2)
- return false;
- validPrimitive = validUnit(value, FLength | FPercent | FNonNeg);
- if (!validPrimitive)
- return false;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1 = createPrimitiveNumericValue(value);
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2;
- if (num == 2) {
- value = m_valueList->next();
- validPrimitive = validUnit(value, FLength | FPercent | FNonNeg);
- if (!validPrimitive)
- return false;
- parsedValue2 = createPrimitiveNumericValue(value);
- } else
- parsedValue2 = parsedValue1;
-
- addProperty(propId, createPrimitiveValuePair(parsedValue1.release(), parsedValue2.release()), important);
- return true;
- }
- case CSSPropertyTabSize:
- validPrimitive = validUnit(value, FInteger | FNonNeg);
- break;
- case CSSPropertyWebkitAspectRatio:
- return parseAspectRatio(important);
- case CSSPropertyBorderRadius:
- case CSSPropertyWebkitBorderRadius:
- return parseBorderRadius(propId, important);
- case CSSPropertyOutlineOffset:
- validPrimitive = validUnit(value, FLength);
- break;
- case CSSPropertyTextShadow: // CSS2 property, dropped in CSS2.1, back in CSS3, so treat as CSS3
- case CSSPropertyBoxShadow:
- case CSSPropertyWebkitBoxShadow:
- if (id == CSSValueNone)
- validPrimitive = true;
- else {
- RefPtrWillBeRawPtr<CSSValueList> shadowValueList = parseShadow(m_valueList.get(), propId);
- if (shadowValueList) {
- addProperty(propId, shadowValueList.release(), important);
- m_valueList->next();
- return true;
- }
- return false;
- }
- break;
- case CSSPropertyWebkitBoxReflect:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- return parseReflect(propId, important);
- break;
- case CSSPropertyOpacity:
- validPrimitive = validUnit(value, FNumber);
- break;
- case CSSPropertyWebkitBoxFlex:
- validPrimitive = validUnit(value, FNumber);
- break;
- case CSSPropertyWebkitBoxFlexGroup:
- validPrimitive = validUnit(value, FInteger | FNonNeg, HTMLStandardMode);
- break;
- case CSSPropertyWebkitBoxOrdinalGroup:
- validPrimitive = validUnit(value, FInteger | FNonNeg, HTMLStandardMode) && value->fValue;
- break;
- case CSSPropertyWebkitFilter:
- if (id == CSSValueNone)
- validPrimitive = true;
- else {
- RefPtrWillBeRawPtr<CSSValue> val = parseFilter();
- if (val) {
- addProperty(propId, val, important);
- return true;
- }
- return false;
- }
- break;
- case CSSPropertyFlex: {
- ShorthandScope scope(this, propId);
- if (id == CSSValueNone) {
- addProperty(CSSPropertyFlexGrow, cssValuePool().createValue(0, CSSPrimitiveValue::CSS_NUMBER), important);
- addProperty(CSSPropertyFlexShrink, cssValuePool().createValue(0, CSSPrimitiveValue::CSS_NUMBER), important);
- addProperty(CSSPropertyFlexBasis, cssValuePool().createIdentifierValue(CSSValueAuto), important);
- return true;
- }
- return parseFlex(m_valueList.get(), important);
- }
- case CSSPropertyFlexBasis:
- // FIXME: Support intrinsic dimensions too.
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FLength | FPercent | FNonNeg));
- break;
- case CSSPropertyFlexGrow:
- case CSSPropertyFlexShrink:
- validPrimitive = validUnit(value, FNumber | FNonNeg);
- break;
- case CSSPropertyOrder:
- validPrimitive = validUnit(value, FInteger, HTMLStandardMode);
- break;
- case CSSPropertyInternalMarqueeIncrement:
- if (id == CSSValueSmall || id == CSSValueLarge || id == CSSValueMedium)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength | FPercent);
- break;
- case CSSPropertyInternalMarqueeRepetition:
- if (id == CSSValueInfinite)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FInteger | FNonNeg);
- break;
- case CSSPropertyInternalMarqueeSpeed:
- if (id == CSSValueNormal || id == CSSValueSlow || id == CSSValueFast)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FTime | FInteger | FNonNeg);
- break;
- case CSSPropertyWebkitTransform:
- if (id == CSSValueNone)
- validPrimitive = true;
- else {
- RefPtrWillBeRawPtr<CSSValue> transformValue = parseTransform();
- if (transformValue) {
- addProperty(propId, transformValue.release(), important);
- return true;
- }
- return false;
- }
- break;
- case CSSPropertyWebkitTransformOrigin:
- case CSSPropertyWebkitTransformOriginX:
- case CSSPropertyWebkitTransformOriginY:
- case CSSPropertyWebkitTransformOriginZ: {
- RefPtrWillBeRawPtr<CSSValue> val1;
- RefPtrWillBeRawPtr<CSSValue> val2;
- RefPtrWillBeRawPtr<CSSValue> val3;
- CSSPropertyID propId1, propId2, propId3;
- if (parseTransformOrigin(propId, propId1, propId2, propId3, val1, val2, val3)) {
- addProperty(propId1, val1.release(), important);
- if (val2)
- addProperty(propId2, val2.release(), important);
- if (val3)
- addProperty(propId3, val3.release(), important);
- return true;
- }
- return false;
- }
- case CSSPropertyWebkitPerspective:
- if (id == CSSValueNone)
- validPrimitive = true;
- else {
- // Accepting valueless numbers is a quirk of the -webkit prefixed version of the property.
- if (validUnit(value, FNumber | FLength | FNonNeg)) {
- RefPtrWillBeRawPtr<CSSValue> val = createPrimitiveNumericValue(value);
- if (val) {
- addProperty(propId, val.release(), important);
- return true;
- }
- return false;
- }
- }
- break;
- case CSSPropertyWebkitPerspectiveOrigin:
- case CSSPropertyWebkitPerspectiveOriginX:
- case CSSPropertyWebkitPerspectiveOriginY: {
- RefPtrWillBeRawPtr<CSSValue> val1;
- RefPtrWillBeRawPtr<CSSValue> val2;
- CSSPropertyID propId1, propId2;
- if (parsePerspectiveOrigin(propId, propId1, propId2, val1, val2)) {
- addProperty(propId1, val1.release(), important);
- if (val2)
- addProperty(propId2, val2.release(), important);
- return true;
- }
- return false;
- }
- case CSSPropertyAnimationDelay:
- case CSSPropertyAnimationDirection:
- case CSSPropertyAnimationDuration:
- case CSSPropertyAnimationFillMode:
- case CSSPropertyAnimationName:
- case CSSPropertyAnimationPlayState:
- case CSSPropertyAnimationIterationCount:
- case CSSPropertyAnimationTimingFunction:
- if (!RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled())
- break;
- case CSSPropertyWebkitAnimationDelay:
- case CSSPropertyWebkitAnimationDirection:
- case CSSPropertyWebkitAnimationDuration:
- case CSSPropertyWebkitAnimationFillMode:
- case CSSPropertyWebkitAnimationName:
- case CSSPropertyWebkitAnimationPlayState:
- case CSSPropertyWebkitAnimationIterationCount:
- case CSSPropertyWebkitAnimationTimingFunction:
- case CSSPropertyTransitionDelay:
- case CSSPropertyTransitionDuration:
- case CSSPropertyTransitionTimingFunction:
- case CSSPropertyTransitionProperty:
- case CSSPropertyWebkitTransitionDelay:
- case CSSPropertyWebkitTransitionDuration:
- case CSSPropertyWebkitTransitionTimingFunction:
- case CSSPropertyWebkitTransitionProperty: {
- RefPtrWillBeRawPtr<CSSValue> val;
- AnimationParseContext context;
- if (parseAnimationProperty(propId, val, context)) {
- addPropertyWithPrefixingVariant(propId, val.release(), important);
- return true;
- }
- return false;
- }
-
- case CSSPropertyJustifySelf:
- if (!RuntimeEnabledFeatures::cssGridLayoutEnabled())
- return false;
-
- return parseItemPositionOverflowPosition(propId, important);
- case CSSPropertyGridAutoColumns:
- case CSSPropertyGridAutoRows:
- if (!RuntimeEnabledFeatures::cssGridLayoutEnabled())
- return false;
- parsedValue = parseGridTrackSize(*m_valueList);
- break;
-
- case CSSPropertyGridTemplateColumns:
- case CSSPropertyGridTemplateRows:
- if (!RuntimeEnabledFeatures::cssGridLayoutEnabled())
- return false;
- return parseGridTrackList(propId, important);
-
- case CSSPropertyGridColumnEnd:
- case CSSPropertyGridColumnStart:
- case CSSPropertyGridRowEnd:
- case CSSPropertyGridRowStart:
- if (!RuntimeEnabledFeatures::cssGridLayoutEnabled())
- return false;
- parsedValue = parseGridPosition();
- break;
-
- case CSSPropertyGridColumn:
- case CSSPropertyGridRow:
- if (!RuntimeEnabledFeatures::cssGridLayoutEnabled())
- return false;
- return parseGridItemPositionShorthand(propId, important);
-
- case CSSPropertyGridArea:
- if (!RuntimeEnabledFeatures::cssGridLayoutEnabled())
- return false;
- return parseGridAreaShorthand(important);
-
- case CSSPropertyGridTemplateAreas:
- if (!RuntimeEnabledFeatures::cssGridLayoutEnabled())
- return false;
- parsedValue = parseGridTemplateAreas();
- break;
-
- case CSSPropertyWebkitMarginCollapse: {
- if (num == 1) {
- ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse);
- if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important))
- return false;
- CSSValue* value = m_parsedProperties.last().value();
- addProperty(webkitMarginCollapseShorthand().properties()[1], value, important);
- return true;
- }
- else if (num == 2) {
- ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse);
- if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important) || !parseValue(webkitMarginCollapseShorthand().properties()[1], important))
- return false;
- return true;
- }
- return false;
- }
- case CSSPropertyTextLineThroughWidth:
- case CSSPropertyTextOverlineWidth:
- case CSSPropertyTextUnderlineWidth:
- if (id == CSSValueAuto || id == CSSValueNormal || id == CSSValueThin ||
- id == CSSValueMedium || id == CSSValueThick)
- validPrimitive = true;
- else
- validPrimitive = !id && validUnit(value, FNumber | FLength | FPercent);
- break;
- case CSSPropertyWebkitColumnCount:
- parsedValue = parseColumnCount();
- break;
- case CSSPropertyWebkitColumnGap: // normal | <length>
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength | FNonNeg);
- break;
- case CSSPropertyWebkitColumnAxis:
- if (id == CSSValueHorizontal || id == CSSValueVertical || id == CSSValueAuto)
- validPrimitive = true;
- break;
- case CSSPropertyWebkitColumnProgression:
- if (id == CSSValueNormal || id == CSSValueReverse)
- validPrimitive = true;
- break;
- case CSSPropertyWebkitColumnSpan: // none | all | 1 (will be dropped in the unprefixed property)
- if (id == CSSValueAll || id == CSSValueNone)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FNumber | FNonNeg) && value->fValue == 1;
- break;
- case CSSPropertyWebkitColumnWidth: // auto | <length>
- parsedValue = parseColumnWidth();
- break;
- case CSSPropertyWillChange:
- if (!RuntimeEnabledFeatures::cssWillChangeEnabled())
- return false;
- return parseWillChange(important);
- // End of CSS3 properties
-
- // Apple specific properties. These will never be standardized and are purely to
- // support custom WebKit-based Apple applications.
- case CSSPropertyWebkitLineClamp:
- // When specifying number of lines, don't allow 0 as a valid value
- // When specifying either type of unit, require non-negative integers
- validPrimitive = (!id && (value->unit == CSSPrimitiveValue::CSS_PERCENTAGE || value->fValue) && validUnit(value, FInteger | FPercent | FNonNeg, HTMLQuirksMode));
- break;
-
- case CSSPropertyWebkitFontSizeDelta: // <length>
- validPrimitive = validUnit(value, FLength);
- break;
-
- case CSSPropertyWebkitHighlight:
- if (id == CSSValueNone || value->unit == CSSPrimitiveValue::CSS_STRING)
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitHyphenateCharacter:
- if (id == CSSValueAuto || value->unit == CSSPrimitiveValue::CSS_STRING)
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitLocale:
- if (id == CSSValueAuto || value->unit == CSSPrimitiveValue::CSS_STRING)
- validPrimitive = true;
- break;
-
- // End Apple-specific properties
-
- case CSSPropertyWebkitAppRegion:
- if (id >= CSSValueDrag && id <= CSSValueNoDrag)
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitTapHighlightColor:
- if ((id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu
- || (id >= CSSValueWebkitFocusRingColor && id < CSSValueWebkitText && inQuirksMode())) {
- validPrimitive = true;
- } else {
- parsedValue = parseColor();
- if (parsedValue)
- m_valueList->next();
- }
- break;
-
- /* shorthand properties */
- case CSSPropertyBackground: {
- // Position must come before color in this array because a plain old "0" is a legal color
- // in quirks mode but it's usually the X coordinate of a position.
- const CSSPropertyID properties[] = { CSSPropertyBackgroundImage, CSSPropertyBackgroundRepeat,
- CSSPropertyBackgroundAttachment, CSSPropertyBackgroundPosition, CSSPropertyBackgroundOrigin,
- CSSPropertyBackgroundClip, CSSPropertyBackgroundColor, CSSPropertyBackgroundSize };
- return parseFillShorthand(propId, properties, WTF_ARRAY_LENGTH(properties), important);
- }
- case CSSPropertyWebkitMask: {
- const CSSPropertyID properties[] = { CSSPropertyWebkitMaskImage, CSSPropertyWebkitMaskRepeat,
- CSSPropertyWebkitMaskPosition, CSSPropertyWebkitMaskOrigin, CSSPropertyWebkitMaskClip, CSSPropertyWebkitMaskSize };
- return parseFillShorthand(propId, properties, WTF_ARRAY_LENGTH(properties), important);
- }
- case CSSPropertyBorder:
- // [ 'border-width' || 'border-style' || <color> ] | inherit
- {
- if (parseShorthand(propId, parsingShorthandForProperty(CSSPropertyBorder), important)) {
- // The CSS3 Borders and Backgrounds specification says that border also resets border-image. It's as
- // though a value of none was specified for the image.
- addExpandedPropertyForValue(CSSPropertyBorderImage, cssValuePool().createImplicitInitialValue(), important);
- return true;
- }
- return false;
- }
- case CSSPropertyBorderTop:
- // [ 'border-top-width' || 'border-style' || <color> ] | inherit
- return parseShorthand(propId, borderTopShorthand(), important);
- case CSSPropertyBorderRight:
- // [ 'border-right-width' || 'border-style' || <color> ] | inherit
- return parseShorthand(propId, borderRightShorthand(), important);
- case CSSPropertyBorderBottom:
- // [ 'border-bottom-width' || 'border-style' || <color> ] | inherit
- return parseShorthand(propId, borderBottomShorthand(), important);
- case CSSPropertyBorderLeft:
- // [ 'border-left-width' || 'border-style' || <color> ] | inherit
- return parseShorthand(propId, borderLeftShorthand(), important);
- case CSSPropertyWebkitBorderStart:
- return parseShorthand(propId, webkitBorderStartShorthand(), important);
- case CSSPropertyWebkitBorderEnd:
- return parseShorthand(propId, webkitBorderEndShorthand(), important);
- case CSSPropertyWebkitBorderBefore:
- return parseShorthand(propId, webkitBorderBeforeShorthand(), important);
- case CSSPropertyWebkitBorderAfter:
- return parseShorthand(propId, webkitBorderAfterShorthand(), important);
- case CSSPropertyOutline:
- // [ 'outline-color' || 'outline-style' || 'outline-width' ] | inherit
- return parseShorthand(propId, outlineShorthand(), important);
- case CSSPropertyBorderColor:
- // <color>{1,4} | inherit
- return parse4Values(propId, borderColorShorthand().properties(), important);
- case CSSPropertyBorderWidth:
- // <border-width>{1,4} | inherit
- return parse4Values(propId, borderWidthShorthand().properties(), important);
- case CSSPropertyBorderStyle:
- // <border-style>{1,4} | inherit
- return parse4Values(propId, borderStyleShorthand().properties(), important);
- case CSSPropertyMargin:
- // <margin-width>{1,4} | inherit
- return parse4Values(propId, marginShorthand().properties(), important);
- case CSSPropertyPadding:
- // <padding-width>{1,4} | inherit
- return parse4Values(propId, paddingShorthand().properties(), important);
- case CSSPropertyFlexFlow:
- return parseShorthand(propId, flexFlowShorthand(), important);
- case CSSPropertyFont:
- // [ [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]?
- // 'font-family' ] | caption | icon | menu | message-box | small-caption | status-bar | inherit
- if (id >= CSSValueCaption && id <= CSSValueStatusBar)
- validPrimitive = true;
- else
- return parseFont(important);
- break;
- case CSSPropertyListStyle:
- return parseShorthand(propId, listStyleShorthand(), important);
- case CSSPropertyWebkitColumns:
- return parseColumnsShorthand(important);
- case CSSPropertyWebkitColumnRule:
- return parseShorthand(propId, webkitColumnRuleShorthand(), important);
- case CSSPropertyWebkitTextStroke:
- return parseShorthand(propId, webkitTextStrokeShorthand(), important);
- case CSSPropertyAnimation:
- if (!RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled())
- break;
- case CSSPropertyWebkitAnimation:
- return parseAnimationShorthand(propId, important);
- case CSSPropertyTransition:
- case CSSPropertyWebkitTransition:
- return parseTransitionShorthand(propId, important);
- case CSSPropertyInvalid:
- return false;
- case CSSPropertyPage:
- return parsePage(propId, important);
- case CSSPropertyFontStretch:
- return false;
- // CSS Text Layout Module Level 3: Vertical writing support
- case CSSPropertyWebkitTextEmphasis:
- return parseShorthand(propId, webkitTextEmphasisShorthand(), important);
-
- case CSSPropertyWebkitTextEmphasisStyle:
- return parseTextEmphasisStyle(important);
-
- case CSSPropertyWebkitTextOrientation:
- // FIXME: For now just support sideways, sideways-right, upright and vertical-right.
- if (id == CSSValueSideways || id == CSSValueSidewaysRight || id == CSSValueVerticalRight || id == CSSValueUpright)
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitLineBoxContain:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- return parseLineBoxContain(important);
- break;
- case CSSPropertyWebkitFontFeatureSettings:
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- return parseFontFeatureSettings(important);
- break;
-
- case CSSPropertyFontVariantLigatures:
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- return parseFontVariantLigatures(important);
- break;
- case CSSPropertyWebkitClipPath:
- if (id == CSSValueNone) {
- validPrimitive = true;
- } else if (value->unit == CSSParserValue::Function) {
- parsedValue = parseBasicShape();
- } else if (value->unit == CSSPrimitiveValue::CSS_URI) {
- parsedValue = CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_URI);
- addProperty(propId, parsedValue.release(), important);
- return true;
- }
- break;
- case CSSPropertyShapeInside:
- case CSSPropertyShapeOutside:
- parsedValue = parseShapeProperty(propId);
- break;
- case CSSPropertyShapeMargin:
- case CSSPropertyShapePadding:
- validPrimitive = (RuntimeEnabledFeatures::cssShapesEnabled() && !id && validUnit(value, FLength | FNonNeg));
- break;
- case CSSPropertyShapeImageThreshold:
- validPrimitive = (RuntimeEnabledFeatures::cssShapesEnabled() && !id && validUnit(value, FNumber));
- break;
-
- case CSSPropertyTouchAction:
- // auto | none | [pan-x || pan-y]
- return parseTouchAction(important);
-
- case CSSPropertyAlignSelf:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseItemPositionOverflowPosition(propId, important);
-
- case CSSPropertyAlignItems:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseItemPositionOverflowPosition(propId, important);
-
- case CSSPropertyBorderBottomStyle:
- case CSSPropertyBorderCollapse:
- case CSSPropertyBorderLeftStyle:
- case CSSPropertyBorderRightStyle:
- case CSSPropertyBorderTopStyle:
- case CSSPropertyBoxSizing:
- case CSSPropertyCaptionSide:
- case CSSPropertyClear:
- case CSSPropertyDirection:
- case CSSPropertyDisplay:
- case CSSPropertyEmptyCells:
- case CSSPropertyFloat:
- case CSSPropertyFontStyle:
- case CSSPropertyImageRendering:
- case CSSPropertyListStylePosition:
- case CSSPropertyListStyleType:
- case CSSPropertyObjectFit:
- case CSSPropertyOutlineStyle:
- case CSSPropertyOverflowWrap:
- case CSSPropertyOverflowX:
- case CSSPropertyOverflowY:
- case CSSPropertyPageBreakAfter:
- case CSSPropertyPageBreakBefore:
- case CSSPropertyPageBreakInside:
- case CSSPropertyPointerEvents:
- case CSSPropertyPosition:
- case CSSPropertyResize:
- case CSSPropertySpeak:
- case CSSPropertyTableLayout:
- case CSSPropertyTextAlignLast:
- case CSSPropertyTextJustify:
- case CSSPropertyTextLineThroughMode:
- case CSSPropertyTextLineThroughStyle:
- case CSSPropertyTextOverflow:
- case CSSPropertyTextOverlineMode:
- case CSSPropertyTextOverlineStyle:
- case CSSPropertyTextRendering:
- case CSSPropertyTextTransform:
- case CSSPropertyTextUnderlineMode:
- case CSSPropertyTextUnderlineStyle:
- case CSSPropertyTouchActionDelay:
- case CSSPropertyVisibility:
- case CSSPropertyWebkitAppearance:
- case CSSPropertyWebkitBackfaceVisibility:
- case CSSPropertyWebkitBorderAfterStyle:
- case CSSPropertyWebkitBorderBeforeStyle:
- case CSSPropertyWebkitBorderEndStyle:
- case CSSPropertyWebkitBorderFit:
- case CSSPropertyWebkitBorderStartStyle:
- case CSSPropertyWebkitBoxAlign:
- case CSSPropertyWebkitBoxDecorationBreak:
- case CSSPropertyWebkitBoxDirection:
- case CSSPropertyWebkitBoxLines:
- case CSSPropertyWebkitBoxOrient:
- case CSSPropertyWebkitBoxPack:
- case CSSPropertyInternalCallback:
- case CSSPropertyWebkitColumnBreakAfter:
- case CSSPropertyWebkitColumnBreakBefore:
- case CSSPropertyWebkitColumnBreakInside:
- case CSSPropertyColumnFill:
- case CSSPropertyWebkitColumnRuleStyle:
- case CSSPropertyAlignContent:
- case CSSPropertyFlexDirection:
- case CSSPropertyFlexWrap:
- case CSSPropertyJustifyContent:
- case CSSPropertyFontKerning:
- case CSSPropertyWebkitFontSmoothing:
- case CSSPropertyGridAutoFlow:
- case CSSPropertyWebkitLineBreak:
- case CSSPropertyWebkitMarginAfterCollapse:
- case CSSPropertyWebkitMarginBeforeCollapse:
- case CSSPropertyWebkitMarginBottomCollapse:
- case CSSPropertyWebkitMarginTopCollapse:
- case CSSPropertyInternalMarqueeDirection:
- case CSSPropertyInternalMarqueeStyle:
- case CSSPropertyWebkitPrintColorAdjust:
- case CSSPropertyWebkitRtlOrdering:
- case CSSPropertyWebkitRubyPosition:
- case CSSPropertyWebkitTextCombine:
- case CSSPropertyWebkitTextEmphasisPosition:
- case CSSPropertyWebkitTextSecurity:
- case CSSPropertyWebkitTransformStyle:
- case CSSPropertyWebkitUserDrag:
- case CSSPropertyWebkitUserModify:
- case CSSPropertyWebkitUserSelect:
- case CSSPropertyWebkitWrapFlow:
- case CSSPropertyWebkitWrapThrough:
- case CSSPropertyWebkitWritingMode:
- case CSSPropertyWhiteSpace:
- case CSSPropertyWordBreak:
- case CSSPropertyWordWrap:
- case CSSPropertyMixBlendMode:
- case CSSPropertyIsolation:
- // These properties should be handled before in isValidKeywordPropertyAndValue().
- ASSERT_NOT_REACHED();
- return false;
- // Properties below are validated inside parseViewportProperty, because we
- // check for parser state. We need to invalidate if someone adds them outside
- // a @viewport rule.
- case CSSPropertyMaxZoom:
- case CSSPropertyMinZoom:
- case CSSPropertyOrientation:
- case CSSPropertyUserZoom:
- validPrimitive = false;
- break;
- default:
- return parseSVGValue(propId, important);
- }
-
- if (validPrimitive) {
- parsedValue = parseValidPrimitive(id, value);
- m_valueList->next();
- }
- ASSERT(!m_parsedCalculation);
- if (parsedValue) {
- if (!m_valueList->current() || inShorthand()) {
- addProperty(propId, parsedValue.release(), important);
- return true;
- }
- }
- return false;
-}
-
-void CSSPropertyParser::addFillValue(RefPtrWillBeRawPtr<CSSValue>& lval, PassRefPtrWillBeRawPtr<CSSValue> rval)
-{
- if (lval) {
- if (lval->isBaseValueList())
- toCSSValueList(lval.get())->append(rval);
- else {
- PassRefPtrWillBeRawPtr<CSSValue> oldlVal(lval.release());
- PassRefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
- list->append(oldlVal);
- list->append(rval);
- lval = list;
- }
- }
- else
- lval = rval;
-}
-
-static bool parseBackgroundClip(CSSParserValue* parserValue, RefPtrWillBeRawPtr<CSSValue>& cssValue)
-{
- if (parserValue->id == CSSValueBorderBox || parserValue->id == CSSValuePaddingBox
- || parserValue->id == CSSValueContentBox || parserValue->id == CSSValueWebkitText) {
- cssValue = cssValuePool().createIdentifierValue(parserValue->id);
- return true;
- }
- return false;
-}
-
-const int cMaxFillProperties = 9;
-
-bool CSSPropertyParser::parseFillShorthand(CSSPropertyID propId, const CSSPropertyID* properties, int numProperties, bool important)
-{
- ASSERT(numProperties <= cMaxFillProperties);
- if (numProperties > cMaxFillProperties)
- return false;
-
- ShorthandScope scope(this, propId);
-
- bool parsedProperty[cMaxFillProperties] = { false };
- RefPtrWillBeRawPtr<CSSValue> values[cMaxFillProperties];
- RefPtrWillBeRawPtr<CSSValue> clipValue;
- RefPtrWillBeRawPtr<CSSValue> positionYValue;
- RefPtrWillBeRawPtr<CSSValue> repeatYValue;
- bool foundClip = false;
- int i;
- bool foundPositionCSSProperty = false;
-
- while (m_valueList->current()) {
- CSSParserValue* val = m_valueList->current();
- if (val->unit == CSSParserValue::Operator && val->iValue == ',') {
- // We hit the end. Fill in all remaining values with the initial value.
- m_valueList->next();
- for (i = 0; i < numProperties; ++i) {
- if (properties[i] == CSSPropertyBackgroundColor && parsedProperty[i])
- // Color is not allowed except as the last item in a list for backgrounds.
- // Reject the entire property.
- return false;
-
- if (!parsedProperty[i] && properties[i] != CSSPropertyBackgroundColor) {
- addFillValue(values[i], cssValuePool().createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
- addFillValue(positionYValue, cssValuePool().createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
- addFillValue(repeatYValue, cssValuePool().createImplicitInitialValue());
- if ((properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) && !parsedProperty[i]) {
- // If background-origin wasn't present, then reset background-clip also.
- addFillValue(clipValue, cssValuePool().createImplicitInitialValue());
- }
- }
- parsedProperty[i] = false;
- }
- if (!m_valueList->current())
- break;
- }
-
- bool sizeCSSPropertyExpected = false;
- if (isForwardSlashOperator(val) && foundPositionCSSProperty) {
- sizeCSSPropertyExpected = true;
- m_valueList->next();
- }
-
- foundPositionCSSProperty = false;
- bool found = false;
- for (i = 0; !found && i < numProperties; ++i) {
-
- if (sizeCSSPropertyExpected && (properties[i] != CSSPropertyBackgroundSize && properties[i] != CSSPropertyWebkitMaskSize))
- continue;
- if (!sizeCSSPropertyExpected && (properties[i] == CSSPropertyBackgroundSize || properties[i] == CSSPropertyWebkitMaskSize))
- continue;
-
- if (!parsedProperty[i]) {
- RefPtrWillBeRawPtr<CSSValue> val1;
- RefPtrWillBeRawPtr<CSSValue> val2;
- CSSPropertyID propId1, propId2;
- CSSParserValue* parserValue = m_valueList->current();
- // parseFillProperty() may modify m_implicitShorthand, so we MUST reset it
- // before EACH return below.
- if (parseFillProperty(properties[i], propId1, propId2, val1, val2)) {
- parsedProperty[i] = found = true;
- addFillValue(values[i], val1.release());
- if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
- addFillValue(positionYValue, val2.release());
- if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
- addFillValue(repeatYValue, val2.release());
- if (properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) {
- // Reparse the value as a clip, and see if we succeed.
- if (parseBackgroundClip(parserValue, val1))
- addFillValue(clipValue, val1.release()); // The property parsed successfully.
- else
- addFillValue(clipValue, cssValuePool().createImplicitInitialValue()); // Some value was used for origin that is not supported by clip. Just reset clip instead.
- }
- if (properties[i] == CSSPropertyBackgroundClip || properties[i] == CSSPropertyWebkitMaskClip) {
- // Update clipValue
- addFillValue(clipValue, val1.release());
- foundClip = true;
- }
- if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
- foundPositionCSSProperty = true;
- }
- }
- }
-
- // if we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it
- if (!found) {
- m_implicitShorthand = false;
- return false;
- }
- }
-
- // Now add all of the properties we found.
- for (i = 0; i < numProperties; i++) {
- // Fill in any remaining properties with the initial value.
- if (!parsedProperty[i]) {
- addFillValue(values[i], cssValuePool().createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition)
- addFillValue(positionYValue, cssValuePool().createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat)
- addFillValue(repeatYValue, cssValuePool().createImplicitInitialValue());
- if (properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) {
- // If background-origin wasn't present, then reset background-clip also.
- addFillValue(clipValue, cssValuePool().createImplicitInitialValue());
- }
- }
- if (properties[i] == CSSPropertyBackgroundPosition) {
- addProperty(CSSPropertyBackgroundPositionX, values[i].release(), important);
- // it's OK to call positionYValue.release() since we only see CSSPropertyBackgroundPosition once
- addProperty(CSSPropertyBackgroundPositionY, positionYValue.release(), important);
- } else if (properties[i] == CSSPropertyWebkitMaskPosition) {
- addProperty(CSSPropertyWebkitMaskPositionX, values[i].release(), important);
- // it's OK to call positionYValue.release() since we only see CSSPropertyWebkitMaskPosition once
- addProperty(CSSPropertyWebkitMaskPositionY, positionYValue.release(), important);
- } else if (properties[i] == CSSPropertyBackgroundRepeat) {
- addProperty(CSSPropertyBackgroundRepeatX, values[i].release(), important);
- // it's OK to call repeatYValue.release() since we only see CSSPropertyBackgroundPosition once
- addProperty(CSSPropertyBackgroundRepeatY, repeatYValue.release(), important);
- } else if (properties[i] == CSSPropertyWebkitMaskRepeat) {
- addProperty(CSSPropertyWebkitMaskRepeatX, values[i].release(), important);
- // it's OK to call repeatYValue.release() since we only see CSSPropertyBackgroundPosition once
- addProperty(CSSPropertyWebkitMaskRepeatY, repeatYValue.release(), important);
- } else if ((properties[i] == CSSPropertyBackgroundClip || properties[i] == CSSPropertyWebkitMaskClip) && !foundClip)
- // Value is already set while updating origin
- continue;
- else if (properties[i] == CSSPropertyBackgroundSize && !parsedProperty[i] && m_context.useLegacyBackgroundSizeShorthandBehavior())
- continue;
- else
- addProperty(properties[i], values[i].release(), important);
-
- // Add in clip values when we hit the corresponding origin property.
- if (properties[i] == CSSPropertyBackgroundOrigin && !foundClip)
- addProperty(CSSPropertyBackgroundClip, clipValue.release(), important);
- else if (properties[i] == CSSPropertyWebkitMaskOrigin && !foundClip)
- addProperty(CSSPropertyWebkitMaskClip, clipValue.release(), important);
- }
-
- m_implicitShorthand = false;
- return true;
-}
-
-void CSSPropertyParser::addAnimationValue(RefPtrWillBeRawPtr<CSSValue>& lval, PassRefPtrWillBeRawPtr<CSSValue> rval)
-{
- if (lval) {
- if (lval->isValueList())
- toCSSValueList(lval.get())->append(rval);
- else {
- PassRefPtrWillBeRawPtr<CSSValue> oldVal(lval.release());
- PassRefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
- list->append(oldVal);
- list->append(rval);
- lval = list;
- }
- }
- else
- lval = rval;
-}
-
-bool CSSPropertyParser::parseAnimationShorthand(CSSPropertyID propId, bool important)
-{
- const StylePropertyShorthand& animationProperties = parsingShorthandForProperty(propId);
- const unsigned numProperties = 8;
-
- // The list of properties in the shorthand should be the same
- // length as the list with animation name in last position, even though they are
- // in a different order.
- ASSERT(numProperties == animationProperties.length());
- ASSERT(numProperties == shorthandForProperty(propId).length());
-
- ShorthandScope scope(this, propId);
-
- bool parsedProperty[numProperties] = { false };
- AnimationParseContext context;
- RefPtrWillBeRawPtr<CSSValue> values[numProperties];
-
- unsigned i;
- while (m_valueList->current()) {
- CSSParserValue* val = m_valueList->current();
- if (val->unit == CSSParserValue::Operator && val->iValue == ',') {
- // We hit the end. Fill in all remaining values with the initial value.
- m_valueList->next();
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- addAnimationValue(values[i], cssValuePool().createImplicitInitialValue());
- parsedProperty[i] = false;
- }
- if (!m_valueList->current())
- break;
- context.commitFirstAnimation();
- }
-
- bool found = false;
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i]) {
- RefPtrWillBeRawPtr<CSSValue> val;
- if (parseAnimationProperty(animationProperties.properties()[i], val, context)) {
- parsedProperty[i] = found = true;
- addAnimationValue(values[i], val.release());
- break;
- }
- }
- }
-
- // if we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it
- if (!found)
- return false;
- }
-
- for (i = 0; i < numProperties; ++i) {
- // If we didn't find the property, set an intial value.
- if (!parsedProperty[i])
- addAnimationValue(values[i], cssValuePool().createImplicitInitialValue());
-
- if (RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled())
- addPropertyWithPrefixingVariant(animationProperties.properties()[i], values[i].release(), important);
- else
- addProperty(animationProperties.properties()[i], values[i].release(), important);
- }
-
- return true;
-}
-
-bool CSSPropertyParser::parseTransitionShorthand(CSSPropertyID propId, bool important)
-{
- const unsigned numProperties = 4;
- const StylePropertyShorthand& shorthand = shorthandForProperty(propId);
- ASSERT(numProperties == shorthand.length());
-
- ShorthandScope scope(this, propId);
-
- bool parsedProperty[numProperties] = { false };
- AnimationParseContext context;
- RefPtrWillBeRawPtr<CSSValue> values[numProperties];
-
- unsigned i;
- while (m_valueList->current()) {
- CSSParserValue* val = m_valueList->current();
- if (val->unit == CSSParserValue::Operator && val->iValue == ',') {
- // We hit the end. Fill in all remaining values with the initial value.
- m_valueList->next();
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- addAnimationValue(values[i], cssValuePool().createImplicitInitialValue());
- parsedProperty[i] = false;
- }
- if (!m_valueList->current())
- break;
- context.commitFirstAnimation();
- }
-
- bool found = false;
- for (i = 0; !found && i < numProperties; ++i) {
- if (!parsedProperty[i]) {
- RefPtrWillBeRawPtr<CSSValue> val;
- if (parseAnimationProperty(shorthand.properties()[i], val, context)) {
- parsedProperty[i] = found = true;
- addAnimationValue(values[i], val.release());
- }
-
- // There are more values to process but 'none' or 'all' were already defined as the animation property, the declaration becomes invalid.
- if (!context.animationPropertyKeywordAllowed() && context.hasCommittedFirstAnimation())
- return false;
- }
- }
-
- // if we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it
- if (!found)
- return false;
- }
-
- // Fill in any remaining properties with the initial value.
- for (i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- addAnimationValue(values[i], cssValuePool().createImplicitInitialValue());
- }
-
- // Now add all of the properties we found.
- for (i = 0; i < numProperties; i++)
- addPropertyWithPrefixingVariant(shorthand.properties()[i], values[i].release(), important);
-
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseColumnWidth()
-{
- CSSParserValue* value = m_valueList->current();
- // Always parse lengths in strict mode here, since it would be ambiguous otherwise when used in
- // the 'columns' shorthand property.
- if (value->id == CSSValueAuto
- || (validUnit(value, FLength | FNonNeg, HTMLStandardMode) && value->fValue)) {
- RefPtrWillBeRawPtr<CSSValue> parsedValue = parseValidPrimitive(value->id, value);
- m_valueList->next();
- return parsedValue;
- }
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseColumnCount()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueAuto
- || (!value->id && validUnit(value, FPositiveInteger, HTMLQuirksMode))) {
- RefPtrWillBeRawPtr<CSSValue> parsedValue = parseValidPrimitive(value->id, value);
- m_valueList->next();
- return parsedValue;
- }
- return nullptr;
-}
-
-bool CSSPropertyParser::parseColumnsShorthand(bool important)
-{
- RefPtrWillBeRawPtr<CSSValue> columnWidth;
- RefPtrWillBeRawPtr<CSSValue> columnCount;
- bool hasPendingExplicitAuto = false;
-
- for (unsigned propertiesParsed = 0; CSSParserValue* value = m_valueList->current(); propertiesParsed++) {
- if (propertiesParsed >= 2)
- return false; // Too many values for this shorthand. Invalid declaration.
- if (!propertiesParsed && value->id == CSSValueAuto) {
- // 'auto' is a valid value for any of the two longhands, and at this point we
- // don't know which one(s) it is meant for. We need to see if there are other
- // values first.
- m_valueList->next();
- hasPendingExplicitAuto = true;
- } else {
- if (!columnWidth) {
- if ((columnWidth = parseColumnWidth()))
- continue;
- }
- if (!columnCount) {
- if ((columnCount = parseColumnCount()))
- continue;
- }
- // If we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it.
- return false;
- }
- }
- if (hasPendingExplicitAuto) {
- // Time to assign the previously skipped 'auto' value to a property. If both properties are
- // unassigned at this point (i.e. 'columns:auto'), it doesn't matter that much which one we
- // set (although it does make a slight difference to web-inspector). The one we don't set
- // here will get an implicit 'auto' value further down.
- if (!columnWidth) {
- columnWidth = cssValuePool().createIdentifierValue(CSSValueAuto);
- } else {
- ASSERT(!columnCount);
- columnCount = cssValuePool().createIdentifierValue(CSSValueAuto);
- }
- }
- ASSERT(columnCount || columnWidth);
-
- // Any unassigned property at this point will become implicit 'auto'.
- if (columnWidth)
- addProperty(CSSPropertyWebkitColumnWidth, columnWidth, important);
- else
- addProperty(CSSPropertyWebkitColumnWidth, cssValuePool().createIdentifierValue(CSSValueAuto), important, true /* implicit */);
- if (columnCount)
- addProperty(CSSPropertyWebkitColumnCount, columnCount, important);
- else
- addProperty(CSSPropertyWebkitColumnCount, cssValuePool().createIdentifierValue(CSSValueAuto), important, true /* implicit */);
- return true;
-}
-
-bool CSSPropertyParser::parseShorthand(CSSPropertyID propId, const StylePropertyShorthand& shorthand, bool important)
-{
- // We try to match as many properties as possible
- // We set up an array of booleans to mark which property has been found,
- // and we try to search for properties until it makes no longer any sense.
- ShorthandScope scope(this, propId);
-
- bool found = false;
- unsigned propertiesParsed = 0;
- bool propertyFound[6] = { false, false, false, false, false, false }; // 6 is enough size.
-
- while (m_valueList->current()) {
- found = false;
- for (unsigned propIndex = 0; !found && propIndex < shorthand.length(); ++propIndex) {
- if (!propertyFound[propIndex] && parseValue(shorthand.properties()[propIndex], important)) {
- propertyFound[propIndex] = found = true;
- propertiesParsed++;
- }
- }
-
- // if we didn't find at least one match, this is an
- // invalid shorthand and we have to ignore it
- if (!found)
- return false;
- }
-
- if (propertiesParsed == shorthand.length())
- return true;
-
- // Fill in any remaining properties with the initial value.
- ImplicitScope implicitScope(this, PropertyImplicit);
- const StylePropertyShorthand* const* const propertiesForInitialization = shorthand.propertiesForInitialization();
- for (unsigned i = 0; i < shorthand.length(); ++i) {
- if (propertyFound[i])
- continue;
-
- if (propertiesForInitialization) {
- const StylePropertyShorthand& initProperties = *(propertiesForInitialization[i]);
- for (unsigned propIndex = 0; propIndex < initProperties.length(); ++propIndex)
- addProperty(initProperties.properties()[propIndex], cssValuePool().createImplicitInitialValue(), important);
- } else
- addProperty(shorthand.properties()[i], cssValuePool().createImplicitInitialValue(), important);
- }
-
- return true;
-}
-
-bool CSSPropertyParser::parse4Values(CSSPropertyID propId, const CSSPropertyID *properties, bool important)
-{
- /* From the CSS 2 specs, 8.3
- * If there is only one value, it applies to all sides. If there are two values, the top and
- * bottom margins are set to the first value and the right and left margins are set to the second.
- * If there are three values, the top is set to the first value, the left and right are set to the
- * second, and the bottom is set to the third. If there are four values, they apply to the top,
- * right, bottom, and left, respectively.
- */
-
- int num = inShorthand() ? 1 : m_valueList->size();
-
- ShorthandScope scope(this, propId);
-
- // the order is top, right, bottom, left
- switch (num) {
- case 1: {
- if (!parseValue(properties[0], important))
- return false;
- CSSValue* value = m_parsedProperties.last().value();
- ImplicitScope implicitScope(this, PropertyImplicit);
- addProperty(properties[1], value, important);
- addProperty(properties[2], value, important);
- addProperty(properties[3], value, important);
- break;
- }
- case 2: {
- if (!parseValue(properties[0], important) || !parseValue(properties[1], important))
- return false;
- CSSValue* value = m_parsedProperties[m_parsedProperties.size() - 2].value();
- ImplicitScope implicitScope(this, PropertyImplicit);
- addProperty(properties[2], value, important);
- value = m_parsedProperties[m_parsedProperties.size() - 2].value();
- addProperty(properties[3], value, important);
- break;
- }
- case 3: {
- if (!parseValue(properties[0], important) || !parseValue(properties[1], important) || !parseValue(properties[2], important))
- return false;
- CSSValue* value = m_parsedProperties[m_parsedProperties.size() - 2].value();
- ImplicitScope implicitScope(this, PropertyImplicit);
- addProperty(properties[3], value, important);
- break;
- }
- case 4: {
- if (!parseValue(properties[0], important) || !parseValue(properties[1], important) ||
- !parseValue(properties[2], important) || !parseValue(properties[3], important))
- return false;
- break;
- }
- default: {
- return false;
- }
- }
-
- return true;
-}
-
-// auto | <identifier>
-bool CSSPropertyParser::parsePage(CSSPropertyID propId, bool important)
-{
- ASSERT(propId == CSSPropertyPage);
-
- if (m_valueList->size() != 1)
- return false;
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- if (value->id == CSSValueAuto) {
- addProperty(propId, cssValuePool().createIdentifierValue(value->id), important);
- return true;
- } else if (value->id == 0 && value->unit == CSSPrimitiveValue::CSS_IDENT) {
- addProperty(propId, createPrimitiveStringValue(value), important);
- return true;
- }
- return false;
-}
-
-// <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ]
-bool CSSPropertyParser::parseSize(CSSPropertyID propId, bool important)
-{
- ASSERT(propId == CSSPropertySize);
-
- if (m_valueList->size() > 2)
- return false;
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated();
-
- // First parameter.
- SizeParameterType paramType = parseSizeParameter(parsedValues.get(), value, None);
- if (paramType == None)
- return false;
-
- // Second parameter, if any.
- value = m_valueList->next();
- if (value) {
- paramType = parseSizeParameter(parsedValues.get(), value, paramType);
- if (paramType == None)
- return false;
- }
-
- addProperty(propId, parsedValues.release(), important);
- return true;
-}
-
-CSSPropertyParser::SizeParameterType CSSPropertyParser::parseSizeParameter(CSSValueList* parsedValues, CSSParserValue* value, SizeParameterType prevParamType)
-{
- switch (value->id) {
- case CSSValueAuto:
- if (prevParamType == None) {
- parsedValues->append(cssValuePool().createIdentifierValue(value->id));
- return Auto;
- }
- return None;
- case CSSValueLandscape:
- case CSSValuePortrait:
- if (prevParamType == None || prevParamType == PageSize) {
- parsedValues->append(cssValuePool().createIdentifierValue(value->id));
- return Orientation;
- }
- return None;
- case CSSValueA3:
- case CSSValueA4:
- case CSSValueA5:
- case CSSValueB4:
- case CSSValueB5:
- case CSSValueLedger:
- case CSSValueLegal:
- case CSSValueLetter:
- if (prevParamType == None || prevParamType == Orientation) {
- // Normalize to Page Size then Orientation order by prepending.
- // This is not specified by the CSS3 Paged Media specification, but for simpler processing later (StyleResolver::applyPageSizeProperty).
- parsedValues->prepend(cssValuePool().createIdentifierValue(value->id));
- return PageSize;
- }
- return None;
- case 0:
- if (validUnit(value, FLength | FNonNeg) && (prevParamType == None || prevParamType == Length)) {
- parsedValues->append(createPrimitiveNumericValue(value));
- return Length;
- }
- return None;
- default:
- return None;
- }
-}
-
-// [ <string> <string> ]+ | inherit | none
-// inherit and none are handled in parseValue.
-bool CSSPropertyParser::parseQuotes(CSSPropertyID propId, bool important)
-{
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated();
- while (CSSParserValue* val = m_valueList->current()) {
- RefPtrWillBeRawPtr<CSSValue> parsedValue;
- if (val->unit == CSSPrimitiveValue::CSS_STRING)
- parsedValue = CSSPrimitiveValue::create(val->string, CSSPrimitiveValue::CSS_STRING);
- else
- break;
- values->append(parsedValue.release());
- m_valueList->next();
- }
- if (values->length()) {
- addProperty(propId, values.release(), important);
- m_valueList->next();
- return true;
- }
- return false;
-}
-
-// [ <string> | <uri> | <counter> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit
-// in CSS 2.1 this got somewhat reduced:
-// [ <string> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit
-bool CSSPropertyParser::parseContent(CSSPropertyID propId, bool important)
-{
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated();
-
- while (CSSParserValue* val = m_valueList->current()) {
- RefPtrWillBeRawPtr<CSSValue> parsedValue;
- if (val->unit == CSSPrimitiveValue::CSS_URI) {
- // url
- parsedValue = CSSImageValue::create(val->string, completeURL(val->string));
- } else if (val->unit == CSSParserValue::Function) {
- // attr(X) | counter(X [,Y]) | counters(X, Y, [,Z]) | -webkit-gradient(...)
- CSSParserValueList* args = val->function->args.get();
- if (!args)
- return false;
- if (equalIgnoringCase(val->function->name, "attr(")) {
- parsedValue = parseAttr(args);
- if (!parsedValue)
- return false;
- } else if (equalIgnoringCase(val->function->name, "counter(")) {
- parsedValue = parseCounterContent(args, false);
- if (!parsedValue)
- return false;
- } else if (equalIgnoringCase(val->function->name, "counters(")) {
- parsedValue = parseCounterContent(args, true);
- if (!parsedValue)
- return false;
- } else if (equalIgnoringCase(val->function->name, "-webkit-image-set(")) {
- parsedValue = parseImageSet(m_valueList.get());
- if (!parsedValue)
- return false;
- } else if (isGeneratedImageValue(val)) {
- if (!parseGeneratedImage(m_valueList.get(), parsedValue))
- return false;
- } else
- return false;
- } else if (val->unit == CSSPrimitiveValue::CSS_IDENT) {
- // open-quote
- // close-quote
- // no-open-quote
- // no-close-quote
- // inherit
- // FIXME: These are not yet implemented (http://bugs.webkit.org/show_bug.cgi?id=6503).
- // none
- // normal
- switch (val->id) {
- case CSSValueOpenQuote:
- case CSSValueCloseQuote:
- case CSSValueNoOpenQuote:
- case CSSValueNoCloseQuote:
- case CSSValueNone:
- case CSSValueNormal:
- parsedValue = cssValuePool().createIdentifierValue(val->id);
- default:
- break;
- }
- } else if (val->unit == CSSPrimitiveValue::CSS_STRING) {
- parsedValue = createPrimitiveStringValue(val);
- }
- if (!parsedValue)
- break;
- values->append(parsedValue.release());
- m_valueList->next();
- }
-
- if (values->length()) {
- addProperty(propId, values.release(), important);
- m_valueList->next();
- return true;
- }
-
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAttr(CSSParserValueList* args)
-{
- if (args->size() != 1)
- return nullptr;
-
- CSSParserValue* a = args->current();
-
- if (a->unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
-
- String attrName = a->string;
- // CSS allows identifiers with "-" at the start, like "-webkit-mask-image".
- // But HTML attribute names can't have those characters, and we should not
- // even parse them inside attr().
- if (attrName[0] == '-')
- return nullptr;
-
- if (m_context.isHTMLDocument())
- attrName = attrName.lower();
-
- return cssValuePool().createValue(attrName, CSSPrimitiveValue::CSS_ATTR);
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseBackgroundColor()
-{
- CSSValueID id = m_valueList->current()->id;
- if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu || id == CSSValueCurrentcolor ||
- (id >= CSSValueGrey && id < CSSValueWebkitText && inQuirksMode()))
- return cssValuePool().createIdentifierValue(id);
- return parseColor();
-}
-
-bool CSSPropertyParser::parseFillImage(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value)
-{
- if (valueList->current()->id == CSSValueNone) {
- value = cssValuePool().createIdentifierValue(CSSValueNone);
- return true;
- }
- if (valueList->current()->unit == CSSPrimitiveValue::CSS_URI) {
- value = CSSImageValue::create(valueList->current()->string, completeURL(valueList->current()->string));
- return true;
- }
-
- if (isGeneratedImageValue(valueList->current()))
- return parseGeneratedImage(valueList, value);
-
- if (valueList->current()->unit == CSSParserValue::Function && equalIgnoringCase(valueList->current()->function->name, "-webkit-image-set(")) {
- value = parseImageSet(m_valueList.get());
- if (value)
- return true;
- }
-
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseFillPositionX(CSSParserValueList* valueList)
-{
- int id = valueList->current()->id;
- if (id == CSSValueLeft || id == CSSValueRight || id == CSSValueCenter) {
- int percent = 0;
- if (id == CSSValueRight)
- percent = 100;
- else if (id == CSSValueCenter)
- percent = 50;
- return cssValuePool().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
- }
- if (validUnit(valueList->current(), FPercent | FLength))
- return createPrimitiveNumericValue(valueList->current());
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseFillPositionY(CSSParserValueList* valueList)
-{
- int id = valueList->current()->id;
- if (id == CSSValueTop || id == CSSValueBottom || id == CSSValueCenter) {
- int percent = 0;
- if (id == CSSValueBottom)
- percent = 100;
- else if (id == CSSValueCenter)
- percent = 50;
- return cssValuePool().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
- }
- if (validUnit(valueList->current(), FPercent | FLength))
- return createPrimitiveNumericValue(valueList->current());
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseFillPositionComponent(CSSParserValueList* valueList, unsigned& cumulativeFlags, FillPositionFlag& individualFlag, FillPositionParsingMode parsingMode)
-{
- CSSValueID id = valueList->current()->id;
- if (id == CSSValueLeft || id == CSSValueTop || id == CSSValueRight || id == CSSValueBottom || id == CSSValueCenter) {
- int percent = 0;
- if (id == CSSValueLeft || id == CSSValueRight) {
- if (cumulativeFlags & XFillPosition)
- return nullptr;
- cumulativeFlags |= XFillPosition;
- individualFlag = XFillPosition;
- if (id == CSSValueRight)
- percent = 100;
- }
- else if (id == CSSValueTop || id == CSSValueBottom) {
- if (cumulativeFlags & YFillPosition)
- return nullptr;
- cumulativeFlags |= YFillPosition;
- individualFlag = YFillPosition;
- if (id == CSSValueBottom)
- percent = 100;
- } else if (id == CSSValueCenter) {
- // Center is ambiguous, so we're not sure which position we've found yet, an x or a y.
- percent = 50;
- cumulativeFlags |= AmbiguousFillPosition;
- individualFlag = AmbiguousFillPosition;
- }
-
- if (parsingMode == ResolveValuesAsKeyword)
- return cssValuePool().createIdentifierValue(id);
-
- return cssValuePool().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE);
- }
- if (validUnit(valueList->current(), FPercent | FLength)) {
- if (!cumulativeFlags) {
- cumulativeFlags |= XFillPosition;
- individualFlag = XFillPosition;
- } else if (cumulativeFlags & (XFillPosition | AmbiguousFillPosition)) {
- cumulativeFlags |= YFillPosition;
- individualFlag = YFillPosition;
- } else {
- if (m_parsedCalculation)
- m_parsedCalculation.release();
- return nullptr;
- }
- return createPrimitiveNumericValue(valueList->current());
- }
- return nullptr;
-}
-
-static bool isValueConflictingWithCurrentEdge(int value1, int value2)
-{
- if ((value1 == CSSValueLeft || value1 == CSSValueRight) && (value2 == CSSValueLeft || value2 == CSSValueRight))
- return true;
-
- if ((value1 == CSSValueTop || value1 == CSSValueBottom) && (value2 == CSSValueTop || value2 == CSSValueBottom))
- return true;
-
- return false;
-}
-
-static bool isFillPositionKeyword(CSSValueID value)
-{
- return value == CSSValueLeft || value == CSSValueTop || value == CSSValueBottom || value == CSSValueRight || value == CSSValueCenter;
-}
-
-void CSSPropertyParser::parse4ValuesFillPosition(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2)
-{
- // [ left | right ] [ <percentage] | <length> ] && [ top | bottom ] [ <percentage> | <length> ]
- // In the case of 4 values <position> requires the second value to be a length or a percentage.
- if (isFillPositionKeyword(parsedValue2->getValueID()))
- return;
-
- unsigned cumulativeFlags = 0;
- FillPositionFlag value3Flag = InvalidFillPosition;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> value3 = parseFillPositionComponent(valueList, cumulativeFlags, value3Flag, ResolveValuesAsKeyword);
- if (!value3)
- return;
-
- CSSValueID ident1 = parsedValue1->getValueID();
- CSSValueID ident3 = value3->getValueID();
-
- if (ident1 == CSSValueCenter)
- return;
-
- if (!isFillPositionKeyword(ident3) || ident3 == CSSValueCenter)
- return;
-
- // We need to check if the values are not conflicting, e.g. they are not on the same edge. It is
- // needed as the second call to parseFillPositionComponent was on purpose not checking it. In the
- // case of two values top 20px is invalid but in the case of 4 values it becomes valid.
- if (isValueConflictingWithCurrentEdge(ident1, ident3))
- return;
-
- valueList->next();
-
- cumulativeFlags = 0;
- FillPositionFlag value4Flag = InvalidFillPosition;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> value4 = parseFillPositionComponent(valueList, cumulativeFlags, value4Flag, ResolveValuesAsKeyword);
- if (!value4)
- return;
-
- // 4th value must be a length or a percentage.
- if (isFillPositionKeyword(value4->getValueID()))
- return;
-
- value1 = createPrimitiveValuePair(parsedValue1, parsedValue2);
- value2 = createPrimitiveValuePair(value3, value4);
-
- if (ident1 == CSSValueTop || ident1 == CSSValueBottom)
- value1.swap(value2);
-
- valueList->next();
-}
-void CSSPropertyParser::parse3ValuesFillPosition(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2)
-{
- unsigned cumulativeFlags = 0;
- FillPositionFlag value3Flag = InvalidFillPosition;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> value3 = parseFillPositionComponent(valueList, cumulativeFlags, value3Flag, ResolveValuesAsKeyword);
-
- // value3 is not an expected value, we return.
- if (!value3)
- return;
-
- valueList->next();
-
- bool swapNeeded = false;
- CSSValueID ident1 = parsedValue1->getValueID();
- CSSValueID ident2 = parsedValue2->getValueID();
- CSSValueID ident3 = value3->getValueID();
-
- CSSValueID firstPositionKeyword;
- CSSValueID secondPositionKeyword;
-
- if (ident1 == CSSValueCenter) {
- // <position> requires the first 'center' to be followed by a keyword.
- if (!isFillPositionKeyword(ident2))
- return;
-
- // If 'center' is the first keyword then the last one needs to be a length.
- if (isFillPositionKeyword(ident3))
- return;
-
- firstPositionKeyword = CSSValueLeft;
- if (ident2 == CSSValueLeft || ident2 == CSSValueRight) {
- firstPositionKeyword = CSSValueTop;
- swapNeeded = true;
- }
- value1 = createPrimitiveValuePair(cssValuePool().createIdentifierValue(firstPositionKeyword), cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE));
- value2 = createPrimitiveValuePair(parsedValue2, value3);
- } else if (ident3 == CSSValueCenter) {
- if (isFillPositionKeyword(ident2))
- return;
-
- secondPositionKeyword = CSSValueTop;
- if (ident1 == CSSValueTop || ident1 == CSSValueBottom) {
- secondPositionKeyword = CSSValueLeft;
- swapNeeded = true;
- }
- value1 = createPrimitiveValuePair(parsedValue1, parsedValue2);
- value2 = createPrimitiveValuePair(cssValuePool().createIdentifierValue(secondPositionKeyword), cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE));
- } else {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> firstPositionValue;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> secondPositionValue;
-
- if (isFillPositionKeyword(ident2)) {
- // To match CSS grammar, we should only accept: [ center | left | right | bottom | top ] [ left | right | top | bottom ] [ <percentage> | <length> ].
- ASSERT(ident2 != CSSValueCenter);
-
- if (isFillPositionKeyword(ident3))
- return;
-
- secondPositionValue = value3;
- secondPositionKeyword = ident2;
- firstPositionValue = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PERCENTAGE);
- } else {
- // Per CSS, we should only accept: [ right | left | top | bottom ] [ <percentage> | <length> ] [ center | left | right | bottom | top ].
- if (!isFillPositionKeyword(ident3))
- return;
-
- firstPositionValue = parsedValue2;
- secondPositionKeyword = ident3;
- secondPositionValue = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PERCENTAGE);
- }
-
- if (isValueConflictingWithCurrentEdge(ident1, secondPositionKeyword))
- return;
-
- value1 = createPrimitiveValuePair(parsedValue1, firstPositionValue);
- value2 = createPrimitiveValuePair(cssValuePool().createIdentifierValue(secondPositionKeyword), secondPositionValue);
- }
-
- if (ident1 == CSSValueTop || ident1 == CSSValueBottom || swapNeeded)
- value1.swap(value2);
-
-#ifndef NDEBUG
- CSSPrimitiveValue* first = toCSSPrimitiveValue(value1.get());
- CSSPrimitiveValue* second = toCSSPrimitiveValue(value2.get());
- ident1 = first->getPairValue()->first()->getValueID();
- ident2 = second->getPairValue()->first()->getValueID();
- ASSERT(ident1 == CSSValueLeft || ident1 == CSSValueRight);
- ASSERT(ident2 == CSSValueBottom || ident2 == CSSValueTop);
-#endif
-}
-
-inline bool CSSPropertyParser::isPotentialPositionValue(CSSParserValue* value)
-{
- return isFillPositionKeyword(value->id) || validUnit(value, FPercent | FLength, ReleaseParsedCalcValue);
-}
-
-void CSSPropertyParser::parseFillPosition(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2)
-{
- unsigned numberOfValues = 0;
- for (unsigned i = valueList->currentIndex(); i < valueList->size(); ++i, ++numberOfValues) {
- CSSParserValue* current = valueList->valueAt(i);
- if (isComma(current) || !current || isForwardSlashOperator(current) || !isPotentialPositionValue(current))
- break;
- }
-
- if (numberOfValues > 4)
- return;
-
- // If we are parsing two values, we can safely call the CSS 2.1 parsing function and return.
- if (numberOfValues <= 2) {
- parse2ValuesFillPosition(valueList, value1, value2);
- return;
- }
-
- ASSERT(numberOfValues > 2 && numberOfValues <= 4);
-
- CSSParserValue* value = valueList->current();
-
- // <position> requires the first value to be a background keyword.
- if (!isFillPositionKeyword(value->id))
- return;
-
- // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length.
- unsigned cumulativeFlags = 0;
- FillPositionFlag value1Flag = InvalidFillPosition;
- FillPositionFlag value2Flag = InvalidFillPosition;
- value1 = parseFillPositionComponent(valueList, cumulativeFlags, value1Flag, ResolveValuesAsKeyword);
- if (!value1)
- return;
-
- valueList->next();
-
- // In case we are parsing more than two values, relax the check inside of parseFillPositionComponent. top 20px is
- // a valid start for <position>.
- cumulativeFlags = AmbiguousFillPosition;
- value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag, ResolveValuesAsKeyword);
- if (value2)
- valueList->next();
- else {
- value1.clear();
- return;
- }
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1 = toCSSPrimitiveValue(value1.get());
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2 = toCSSPrimitiveValue(value2.get());
-
- value1.clear();
- value2.clear();
-
- // Per CSS3 syntax, <position> can't have 'center' as its second keyword as we have more arguments to follow.
- if (parsedValue2->getValueID() == CSSValueCenter)
- return;
-
- if (numberOfValues == 3)
- parse3ValuesFillPosition(valueList, value1, value2, parsedValue1.release(), parsedValue2.release());
- else
- parse4ValuesFillPosition(valueList, value1, value2, parsedValue1.release(), parsedValue2.release());
-}
-
-void CSSPropertyParser::parse2ValuesFillPosition(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2)
-{
- CSSParserValue* value = valueList->current();
-
- // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length.
- unsigned cumulativeFlags = 0;
- FillPositionFlag value1Flag = InvalidFillPosition;
- FillPositionFlag value2Flag = InvalidFillPosition;
- value1 = parseFillPositionComponent(valueList, cumulativeFlags, value1Flag);
- if (!value1)
- return;
-
- // It only takes one value for background-position to be correctly parsed if it was specified in a shorthand (since we
- // can assume that any other values belong to the rest of the shorthand). If we're not parsing a shorthand, though, the
- // value was explicitly specified for our property.
- value = valueList->next();
-
- // First check for the comma. If so, we are finished parsing this value or value pair.
- if (isComma(value))
- value = 0;
-
- if (value) {
- value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag);
- if (value2)
- valueList->next();
- else {
- if (!inShorthand()) {
- value1.clear();
- return;
- }
- }
- }
-
- if (!value2)
- // Only one value was specified. If that value was not a keyword, then it sets the x position, and the y position
- // is simply 50%. This is our default.
- // For keywords, the keyword was either an x-keyword (left/right), a y-keyword (top/bottom), or an ambiguous keyword (center).
- // For left/right/center, the default of 50% in the y is still correct.
- value2 = cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE);
-
- if (value1Flag == YFillPosition || value2Flag == XFillPosition)
- value1.swap(value2);
-}
-
-void CSSPropertyParser::parseFillRepeat(RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2)
-{
- CSSValueID id = m_valueList->current()->id;
- if (id == CSSValueRepeatX) {
- m_implicitShorthand = true;
- value1 = cssValuePool().createIdentifierValue(CSSValueRepeat);
- value2 = cssValuePool().createIdentifierValue(CSSValueNoRepeat);
- m_valueList->next();
- return;
- }
- if (id == CSSValueRepeatY) {
- m_implicitShorthand = true;
- value1 = cssValuePool().createIdentifierValue(CSSValueNoRepeat);
- value2 = cssValuePool().createIdentifierValue(CSSValueRepeat);
- m_valueList->next();
- return;
- }
- if (id == CSSValueRepeat || id == CSSValueNoRepeat || id == CSSValueRound || id == CSSValueSpace)
- value1 = cssValuePool().createIdentifierValue(id);
- else {
- value1 = nullptr;
- return;
- }
-
- CSSParserValue* value = m_valueList->next();
-
- // Parse the second value if one is available
- if (value && !isComma(value)) {
- id = value->id;
- if (id == CSSValueRepeat || id == CSSValueNoRepeat || id == CSSValueRound || id == CSSValueSpace) {
- value2 = cssValuePool().createIdentifierValue(id);
- m_valueList->next();
- return;
- }
- }
-
- // If only one value was specified, value2 is the same as value1.
- m_implicitShorthand = true;
- value2 = cssValuePool().createIdentifierValue(toCSSPrimitiveValue(value1.get())->getValueID());
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseFillSize(CSSPropertyID propId, bool& allowComma)
-{
- allowComma = true;
- CSSParserValue* value = m_valueList->current();
-
- if (value->id == CSSValueContain || value->id == CSSValueCover)
- return cssValuePool().createIdentifierValue(value->id);
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1;
-
- if (value->id == CSSValueAuto)
- parsedValue1 = cssValuePool().createIdentifierValue(CSSValueAuto);
- else {
- if (!validUnit(value, FLength | FPercent))
- return nullptr;
- parsedValue1 = createPrimitiveNumericValue(value);
- }
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2;
- if ((value = m_valueList->next())) {
- if (value->unit == CSSParserValue::Operator && value->iValue == ',')
- allowComma = false;
- else if (value->id != CSSValueAuto) {
- if (!validUnit(value, FLength | FPercent)) {
- if (!inShorthand())
- return nullptr;
- // We need to rewind the value list, so that when it is advanced we'll end up back at this value.
- m_valueList->previous();
- } else
- parsedValue2 = createPrimitiveNumericValue(value);
- }
- } else if (!parsedValue2 && propId == CSSPropertyWebkitBackgroundSize) {
- // For backwards compatibility we set the second value to the first if it is omitted.
- // We only need to do this for -webkit-background-size. It should be safe to let masks match
- // the real property.
- parsedValue2 = parsedValue1;
- }
-
- if (!parsedValue2)
- return parsedValue1;
- return createPrimitiveValuePair(parsedValue1.release(), parsedValue2.release());
-}
-
-bool CSSPropertyParser::parseFillProperty(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2,
- RefPtrWillBeRawPtr<CSSValue>& retValue1, RefPtrWillBeRawPtr<CSSValue>& retValue2)
-{
- RefPtrWillBeRawPtr<CSSValueList> values;
- RefPtrWillBeRawPtr<CSSValueList> values2;
- CSSParserValue* val;
- RefPtrWillBeRawPtr<CSSValue> value;
- RefPtrWillBeRawPtr<CSSValue> value2;
-
- bool allowComma = false;
-
- retValue1 = retValue2 = nullptr;
- propId1 = propId;
- propId2 = propId;
- if (propId == CSSPropertyBackgroundPosition) {
- propId1 = CSSPropertyBackgroundPositionX;
- propId2 = CSSPropertyBackgroundPositionY;
- } else if (propId == CSSPropertyWebkitMaskPosition) {
- propId1 = CSSPropertyWebkitMaskPositionX;
- propId2 = CSSPropertyWebkitMaskPositionY;
- } else if (propId == CSSPropertyBackgroundRepeat) {
- propId1 = CSSPropertyBackgroundRepeatX;
- propId2 = CSSPropertyBackgroundRepeatY;
- } else if (propId == CSSPropertyWebkitMaskRepeat) {
- propId1 = CSSPropertyWebkitMaskRepeatX;
- propId2 = CSSPropertyWebkitMaskRepeatY;
- }
-
- while ((val = m_valueList->current())) {
- RefPtrWillBeRawPtr<CSSValue> currValue;
- RefPtrWillBeRawPtr<CSSValue> currValue2;
-
- if (allowComma) {
- if (!isComma(val))
- return false;
- m_valueList->next();
- allowComma = false;
- } else {
- allowComma = true;
- switch (propId) {
- case CSSPropertyBackgroundColor:
- currValue = parseBackgroundColor();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyBackgroundAttachment:
- if (val->id == CSSValueScroll || val->id == CSSValueFixed || val->id == CSSValueLocal) {
- currValue = cssValuePool().createIdentifierValue(val->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundImage:
- case CSSPropertyWebkitMaskImage:
- if (parseFillImage(m_valueList.get(), currValue))
- m_valueList->next();
- break;
- case CSSPropertyWebkitBackgroundClip:
- case CSSPropertyWebkitBackgroundOrigin:
- case CSSPropertyWebkitMaskClip:
- case CSSPropertyWebkitMaskOrigin:
- // The first three values here are deprecated and do not apply to the version of the property that has
- // the -webkit- prefix removed.
- if (val->id == CSSValueBorder || val->id == CSSValuePadding || val->id == CSSValueContent ||
- val->id == CSSValueBorderBox || val->id == CSSValuePaddingBox || val->id == CSSValueContentBox ||
- ((propId == CSSPropertyWebkitBackgroundClip || propId == CSSPropertyWebkitMaskClip) &&
- (val->id == CSSValueText || val->id == CSSValueWebkitText))) {
- currValue = cssValuePool().createIdentifierValue(val->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundClip:
- if (parseBackgroundClip(val, currValue))
- m_valueList->next();
- break;
- case CSSPropertyBackgroundOrigin:
- if (val->id == CSSValueBorderBox || val->id == CSSValuePaddingBox || val->id == CSSValueContentBox) {
- currValue = cssValuePool().createIdentifierValue(val->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundPosition:
- case CSSPropertyWebkitMaskPosition:
- parseFillPosition(m_valueList.get(), currValue, currValue2);
- // parseFillPosition advances the m_valueList pointer.
- break;
- case CSSPropertyBackgroundPositionX:
- case CSSPropertyWebkitMaskPositionX: {
- currValue = parseFillPositionX(m_valueList.get());
- if (currValue)
- m_valueList->next();
- break;
- }
- case CSSPropertyBackgroundPositionY:
- case CSSPropertyWebkitMaskPositionY: {
- currValue = parseFillPositionY(m_valueList.get());
- if (currValue)
- m_valueList->next();
- break;
- }
- case CSSPropertyWebkitBackgroundComposite:
- case CSSPropertyWebkitMaskComposite:
- if (val->id >= CSSValueClear && val->id <= CSSValuePlusLighter) {
- currValue = cssValuePool().createIdentifierValue(val->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundBlendMode:
- if (val->id == CSSValueNormal || val->id == CSSValueMultiply
- || val->id == CSSValueScreen || val->id == CSSValueOverlay || val->id == CSSValueDarken
- || val->id == CSSValueLighten || val->id == CSSValueColorDodge || val->id == CSSValueColorBurn
- || val->id == CSSValueHardLight || val->id == CSSValueSoftLight || val->id == CSSValueDifference
- || val->id == CSSValueExclusion || val->id == CSSValueHue || val->id == CSSValueSaturation
- || val->id == CSSValueColor || val->id == CSSValueLuminosity) {
- currValue = cssValuePool().createIdentifierValue(val->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundRepeat:
- case CSSPropertyWebkitMaskRepeat:
- parseFillRepeat(currValue, currValue2);
- // parseFillRepeat advances the m_valueList pointer
- break;
- case CSSPropertyBackgroundSize:
- case CSSPropertyWebkitBackgroundSize:
- case CSSPropertyWebkitMaskSize: {
- currValue = parseFillSize(propId, allowComma);
- if (currValue)
- m_valueList->next();
- break;
- }
- case CSSPropertyMaskSourceType: {
- if (RuntimeEnabledFeatures::cssMaskSourceTypeEnabled()) {
- if (val->id == CSSValueAuto || val->id == CSSValueAlpha || val->id == CSSValueLuminance) {
- currValue = cssValuePool().createIdentifierValue(val->id);
- m_valueList->next();
- } else {
- currValue = nullptr;
- }
- }
- break;
- }
- default:
- break;
- }
- if (!currValue)
- return false;
-
- if (value && !values) {
- values = CSSValueList::createCommaSeparated();
- values->append(value.release());
- }
-
- if (value2 && !values2) {
- values2 = CSSValueList::createCommaSeparated();
- values2->append(value2.release());
- }
-
- if (values)
- values->append(currValue.release());
- else
- value = currValue.release();
- if (currValue2) {
- if (values2)
- values2->append(currValue2.release());
- else
- value2 = currValue2.release();
- }
- }
-
- // When parsing any fill shorthand property, we let it handle building up the lists for all
- // properties.
- if (inShorthand())
- break;
- }
-
- if (values && values->length()) {
- retValue1 = values.release();
- if (values2 && values2->length())
- retValue2 = values2.release();
- return true;
- }
- if (value) {
- retValue1 = value.release();
- retValue2 = value2.release();
- return true;
- }
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationDelay()
-{
- CSSParserValue* value = m_valueList->current();
- if (validUnit(value, FTime))
- return createPrimitiveNumericValue(value);
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationDirection()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueNormal || value->id == CSSValueAlternate || value->id == CSSValueReverse || value->id == CSSValueAlternateReverse)
- return cssValuePool().createIdentifierValue(value->id);
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationDuration()
-{
- CSSParserValue* value = m_valueList->current();
- if (validUnit(value, FTime | FNonNeg))
- return createPrimitiveNumericValue(value);
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationFillMode()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueNone || value->id == CSSValueForwards || value->id == CSSValueBackwards || value->id == CSSValueBoth)
- return cssValuePool().createIdentifierValue(value->id);
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationIterationCount()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueInfinite)
- return cssValuePool().createIdentifierValue(value->id);
- if (validUnit(value, FNumber | FNonNeg))
- return createPrimitiveNumericValue(value);
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationName()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->unit == CSSPrimitiveValue::CSS_STRING || value->unit == CSSPrimitiveValue::CSS_IDENT) {
- if (value->id == CSSValueNone || (value->unit == CSSPrimitiveValue::CSS_STRING && equalIgnoringCase(value, "none"))) {
- return cssValuePool().createIdentifierValue(CSSValueNone);
- } else {
- return createPrimitiveStringValue(value);
- }
- }
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationPlayState()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueRunning || value->id == CSSValuePaused)
- return cssValuePool().createIdentifierValue(value->id);
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationProperty(AnimationParseContext& context)
-{
- CSSParserValue* value = m_valueList->current();
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
- CSSPropertyID result = cssPropertyID(value->string);
- if (result)
- return cssValuePool().createIdentifierValue(result);
- if (equalIgnoringCase(value, "all")) {
- context.sawAnimationPropertyKeyword();
- return cssValuePool().createIdentifierValue(CSSValueAll);
- }
- if (equalIgnoringCase(value, "none")) {
- context.commitAnimationPropertyKeyword();
- context.sawAnimationPropertyKeyword();
- return cssValuePool().createIdentifierValue(CSSValueNone);
- }
- return nullptr;
-}
-
-bool CSSPropertyParser::parseTransformOriginShorthand(RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2, RefPtrWillBeRawPtr<CSSValue>& value3)
-{
- parse2ValuesFillPosition(m_valueList.get(), value1, value2);
-
- // now get z
- if (m_valueList->current()) {
- if (validUnit(m_valueList->current(), FLength)) {
- value3 = createPrimitiveNumericValue(m_valueList->current());
- m_valueList->next();
- return true;
- }
- return false;
- }
- value3 = cssValuePool().createImplicitInitialValue();
- return true;
-}
-
-bool CSSPropertyParser::parseCubicBezierTimingFunctionValue(CSSParserValueList*& args, double& result)
-{
- CSSParserValue* v = args->current();
- if (!validUnit(v, FNumber))
- return false;
- result = v->fValue;
- v = args->next();
- if (!v)
- // The last number in the function has no comma after it, so we're done.
- return true;
- if (!isComma(v))
- return false;
- args->next();
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationTimingFunction()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueEase || value->id == CSSValueLinear || value->id == CSSValueEaseIn || value->id == CSSValueEaseOut
- || value->id == CSSValueEaseInOut || value->id == CSSValueStepStart || value->id == CSSValueStepEnd)
- return cssValuePool().createIdentifierValue(value->id);
-
- // We must be a function.
- if (value->unit != CSSParserValue::Function)
- return nullptr;
-
- CSSParserValueList* args = value->function->args.get();
-
- if (equalIgnoringCase(value->function->name, "steps(")) {
- // For steps, 1 or 2 params must be specified (comma-separated)
- if (!args || (args->size() != 1 && args->size() != 3))
- return nullptr;
-
- // There are two values.
- int numSteps;
- bool stepAtStart = false;
-
- CSSParserValue* v = args->current();
- if (!validUnit(v, FInteger))
- return nullptr;
- numSteps = clampToInteger(v->fValue);
- if (numSteps < 1)
- return nullptr;
- v = args->next();
-
- if (v) {
- // There is a comma so we need to parse the second value
- if (!isComma(v))
- return nullptr;
- v = args->next();
- if (v->id != CSSValueStart && v->id != CSSValueEnd)
- return nullptr;
- stepAtStart = v->id == CSSValueStart;
- }
-
- return CSSStepsTimingFunctionValue::create(numSteps, stepAtStart);
- }
-
- if (equalIgnoringCase(value->function->name, "cubic-bezier(")) {
- // For cubic bezier, 4 values must be specified.
- if (!args || args->size() != 7)
- return nullptr;
-
- // There are two points specified. The x values must be between 0 and 1 but the y values can exceed this range.
- double x1, y1, x2, y2;
-
- if (!parseCubicBezierTimingFunctionValue(args, x1))
- return nullptr;
- if (x1 < 0 || x1 > 1)
- return nullptr;
- if (!parseCubicBezierTimingFunctionValue(args, y1))
- return nullptr;
- if (!parseCubicBezierTimingFunctionValue(args, x2))
- return nullptr;
- if (x2 < 0 || x2 > 1)
- return nullptr;
- if (!parseCubicBezierTimingFunctionValue(args, y2))
- return nullptr;
-
- return CSSCubicBezierTimingFunctionValue::create(x1, y1, x2, y2);
- }
-
- return nullptr;
-}
-
-bool CSSPropertyParser::parseAnimationProperty(CSSPropertyID propId, RefPtrWillBeRawPtr<CSSValue>& result, AnimationParseContext& context)
-{
- RefPtrWillBeRawPtr<CSSValueList> values;
- CSSParserValue* val;
- RefPtrWillBeRawPtr<CSSValue> value;
- bool allowComma = false;
-
- result = nullptr;
-
- while ((val = m_valueList->current())) {
- RefPtrWillBeRawPtr<CSSValue> currValue;
- if (allowComma) {
- if (!isComma(val))
- return false;
- m_valueList->next();
- allowComma = false;
- }
- else {
- switch (propId) {
- case CSSPropertyAnimationDelay:
- case CSSPropertyWebkitAnimationDelay:
- case CSSPropertyTransitionDelay:
- case CSSPropertyWebkitTransitionDelay:
- currValue = parseAnimationDelay();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationDirection:
- case CSSPropertyWebkitAnimationDirection:
- currValue = parseAnimationDirection();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationDuration:
- case CSSPropertyWebkitAnimationDuration:
- case CSSPropertyTransitionDuration:
- case CSSPropertyWebkitTransitionDuration:
- currValue = parseAnimationDuration();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationFillMode:
- case CSSPropertyWebkitAnimationFillMode:
- currValue = parseAnimationFillMode();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationIterationCount:
- case CSSPropertyWebkitAnimationIterationCount:
- currValue = parseAnimationIterationCount();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationName:
- case CSSPropertyWebkitAnimationName:
- currValue = parseAnimationName();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationPlayState:
- case CSSPropertyWebkitAnimationPlayState:
- currValue = parseAnimationPlayState();
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyTransitionProperty:
- case CSSPropertyWebkitTransitionProperty:
- currValue = parseAnimationProperty(context);
- if (value && !context.animationPropertyKeywordAllowed())
- return false;
- if (currValue)
- m_valueList->next();
- break;
- case CSSPropertyAnimationTimingFunction:
- case CSSPropertyWebkitAnimationTimingFunction:
- case CSSPropertyTransitionTimingFunction:
- case CSSPropertyWebkitTransitionTimingFunction:
- currValue = parseAnimationTimingFunction();
- if (currValue)
- m_valueList->next();
- break;
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
-
- if (!currValue)
- return false;
-
- if (value && !values) {
- values = CSSValueList::createCommaSeparated();
- values->append(value.release());
- }
-
- if (values)
- values->append(currValue.release());
- else
- value = currValue.release();
-
- allowComma = true;
- }
-
- // When parsing the 'transition' shorthand property, we let it handle building up the lists for all
- // properties.
- if (inShorthand())
- break;
- }
-
- if (values && values->length()) {
- result = values.release();
- return true;
- }
- if (value) {
- result = value.release();
- return true;
- }
- return false;
-}
-
-// The function parses [ <integer> || <string> ] in <grid-line> (which can be stand alone or with 'span').
-bool CSSPropertyParser::parseIntegerOrStringFromGridPosition(RefPtrWillBeRawPtr<CSSPrimitiveValue>& numericValue, RefPtrWillBeRawPtr<CSSPrimitiveValue>& gridLineName)
-{
- CSSParserValue* value = m_valueList->current();
- if (validUnit(value, FInteger) && value->fValue) {
- numericValue = createPrimitiveNumericValue(value);
- value = m_valueList->next();
- if (value && value->unit == CSSPrimitiveValue::CSS_STRING) {
- gridLineName = createPrimitiveStringValue(m_valueList->current());
- m_valueList->next();
- }
- return true;
- }
-
- if (value->unit == CSSPrimitiveValue::CSS_STRING) {
- gridLineName = createPrimitiveStringValue(m_valueList->current());
- value = m_valueList->next();
- if (value && validUnit(value, FInteger) && value->fValue) {
- numericValue = createPrimitiveNumericValue(value);
- m_valueList->next();
- }
- return true;
- }
-
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridPosition()
-{
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
-
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueAuto) {
- m_valueList->next();
- return cssValuePool().createIdentifierValue(CSSValueAuto);
- }
-
- if (value->id != CSSValueSpan && value->unit == CSSPrimitiveValue::CSS_IDENT) {
- m_valueList->next();
- return cssValuePool().createValue(value->string, CSSPrimitiveValue::CSS_STRING);
- }
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> numericValue;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> gridLineName;
- bool hasSeenSpanKeyword = false;
-
- if (parseIntegerOrStringFromGridPosition(numericValue, gridLineName)) {
- value = m_valueList->current();
- if (value && value->id == CSSValueSpan) {
- hasSeenSpanKeyword = true;
- m_valueList->next();
- }
- } else if (value->id == CSSValueSpan) {
- hasSeenSpanKeyword = true;
- if (m_valueList->next())
- parseIntegerOrStringFromGridPosition(numericValue, gridLineName);
- }
-
- // Check that we have consumed all the value list. For shorthands, the parser will pass
- // the whole value list (including the opposite position).
- if (m_valueList->current() && !isForwardSlashOperator(m_valueList->current()))
- return nullptr;
-
- // If we didn't parse anything, this is not a valid grid position.
- if (!hasSeenSpanKeyword && !gridLineName && !numericValue)
- return nullptr;
-
- // Negative numbers are not allowed for span (but are for <integer>).
- if (hasSeenSpanKeyword && numericValue && numericValue->getIntValue() < 0)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated();
- if (hasSeenSpanKeyword)
- values->append(cssValuePool().createIdentifierValue(CSSValueSpan));
- if (numericValue)
- values->append(numericValue.release());
- if (gridLineName)
- values->append(gridLineName.release());
- ASSERT(values->length());
- return values.release();
-}
-
-static PassRefPtrWillBeRawPtr<CSSValue> gridMissingGridPositionValue(CSSValue* value)
-{
- if (value->isPrimitiveValue() && toCSSPrimitiveValue(value)->isString())
- return value;
-
- return cssValuePool().createIdentifierValue(CSSValueAuto);
-}
-
-bool CSSPropertyParser::parseGridItemPositionShorthand(CSSPropertyID shorthandId, bool important)
-{
- ShorthandScope scope(this, shorthandId);
- const StylePropertyShorthand& shorthand = shorthandForProperty(shorthandId);
- ASSERT(shorthand.length() == 2);
-
- RefPtrWillBeRawPtr<CSSValue> startValue = parseGridPosition();
- if (!startValue)
- return false;
-
- RefPtrWillBeRawPtr<CSSValue> endValue;
- if (m_valueList->current()) {
- if (!isForwardSlashOperator(m_valueList->current()))
- return false;
-
- if (!m_valueList->next())
- return false;
-
- endValue = parseGridPosition();
- if (!endValue || m_valueList->current())
- return false;
- } else {
- endValue = gridMissingGridPositionValue(startValue.get());
- }
-
- addProperty(shorthand.properties()[0], startValue, important);
- addProperty(shorthand.properties()[1], endValue, important);
- return true;
-}
-
-bool CSSPropertyParser::parseGridAreaShorthand(bool important)
-{
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
-
- ShorthandScope scope(this, CSSPropertyGridArea);
- const StylePropertyShorthand& shorthand = gridAreaShorthand();
- ASSERT_UNUSED(shorthand, shorthand.length() == 4);
-
- RefPtrWillBeRawPtr<CSSValue> rowStartValue = parseGridPosition();
- if (!rowStartValue)
- return false;
-
- RefPtrWillBeRawPtr<CSSValue> columnStartValue;
- if (!parseSingleGridAreaLonghand(columnStartValue))
- return false;
-
- RefPtrWillBeRawPtr<CSSValue> rowEndValue;
- if (!parseSingleGridAreaLonghand(rowEndValue))
- return false;
-
- RefPtrWillBeRawPtr<CSSValue> columnEndValue;
- if (!parseSingleGridAreaLonghand(columnEndValue))
- return false;
-
- if (!columnStartValue)
- columnStartValue = gridMissingGridPositionValue(rowStartValue.get());
-
- if (!rowEndValue)
- rowEndValue = gridMissingGridPositionValue(rowStartValue.get());
-
- if (!columnEndValue)
- columnEndValue = gridMissingGridPositionValue(columnStartValue.get());
-
- addProperty(CSSPropertyGridRowStart, rowStartValue, important);
- addProperty(CSSPropertyGridColumnStart, columnStartValue, important);
- addProperty(CSSPropertyGridRowEnd, rowEndValue, important);
- addProperty(CSSPropertyGridColumnEnd, columnEndValue, important);
- return true;
-}
-
-bool CSSPropertyParser::parseSingleGridAreaLonghand(RefPtrWillBeRawPtr<CSSValue>& property)
-{
- if (!m_valueList->current())
- return true;
-
- if (!isForwardSlashOperator(m_valueList->current()))
- return false;
-
- if (!m_valueList->next())
- return false;
-
- property = parseGridPosition();
- return true;
-}
-
-void CSSPropertyParser::parseGridLineNames(CSSParserValueList* parserValueList, CSSValueList& valueList)
-{
- ASSERT(parserValueList->current() && parserValueList->current()->unit == CSSParserValue::ValueList);
-
- CSSParserValueList* identList = parserValueList->current()->valueList;
- if (!identList->size()) {
- parserValueList->next();
- return;
- }
-
- RefPtrWillBeRawPtr<CSSGridLineNamesValue> lineNames = CSSGridLineNamesValue::create();
- while (CSSParserValue* identValue = identList->current()) {
- ASSERT(identValue->unit == CSSPrimitiveValue::CSS_IDENT);
- RefPtrWillBeRawPtr<CSSPrimitiveValue> lineName = createPrimitiveStringValue(identValue);
- lineNames->append(lineName.release());
- identList->next();
- }
- valueList.append(lineNames.release());
-
- parserValueList->next();
-}
-
-bool CSSPropertyParser::parseGridTrackList(CSSPropertyID propId, bool important)
-{
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
-
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueNone) {
- if (m_valueList->next())
- return false;
-
- addProperty(propId, cssValuePool().createIdentifierValue(value->id), important);
- return true;
- }
-
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated();
- // Handle leading <ident>*.
- value = m_valueList->current();
- if (value && value->unit == CSSParserValue::ValueList)
- parseGridLineNames(m_valueList.get(), *values);
-
- bool seenTrackSizeOrRepeatFunction = false;
- while (CSSParserValue* currentValue = m_valueList->current()) {
- if (currentValue->unit == CSSParserValue::Function && equalIgnoringCase(currentValue->function->name, "repeat(")) {
- if (!parseGridTrackRepeatFunction(*values))
- return false;
- seenTrackSizeOrRepeatFunction = true;
- } else {
- RefPtrWillBeRawPtr<CSSValue> value = parseGridTrackSize(*m_valueList);
- if (!value)
- return false;
- values->append(value);
- seenTrackSizeOrRepeatFunction = true;
- }
- // This will handle the trailing <ident>* in the grammar.
- value = m_valueList->current();
- if (value && value->unit == CSSParserValue::ValueList)
- parseGridLineNames(m_valueList.get(), *values);
- }
-
- // We should have found a <track-size> or else it is not a valid <track-list>
- if (!seenTrackSizeOrRepeatFunction)
- return false;
-
- addProperty(propId, values.release(), important);
- return true;
-}
-
-bool CSSPropertyParser::parseGridTrackRepeatFunction(CSSValueList& list)
-{
- CSSParserValueList* arguments = m_valueList->current()->function->args.get();
- if (!arguments || arguments->size() < 3 || !validUnit(arguments->valueAt(0), FPositiveInteger) || !isComma(arguments->valueAt(1)))
- return false;
-
- ASSERT_WITH_SECURITY_IMPLICATION(arguments->valueAt(0)->fValue > 0);
- size_t repetitions = arguments->valueAt(0)->fValue;
- RefPtrWillBeRawPtr<CSSValueList> repeatedValues = CSSValueList::createSpaceSeparated();
- arguments->next(); // Skip the repetition count.
- arguments->next(); // Skip the comma.
-
- // Handle leading <ident>*.
- CSSParserValue* currentValue = arguments->current();
- if (currentValue && currentValue->unit == CSSParserValue::ValueList)
- parseGridLineNames(arguments, *repeatedValues);
-
- while (arguments->current()) {
- RefPtrWillBeRawPtr<CSSValue> trackSize = parseGridTrackSize(*arguments);
- if (!trackSize)
- return false;
-
- repeatedValues->append(trackSize);
-
- // This takes care of any trailing <ident>* in the grammar.
- currentValue = arguments->current();
- if (currentValue && currentValue->unit == CSSParserValue::ValueList)
- parseGridLineNames(arguments, *repeatedValues);
- }
-
- for (size_t i = 0; i < repetitions; ++i) {
- for (size_t j = 0; j < repeatedValues->length(); ++j)
- list.append(repeatedValues->itemWithoutBoundsCheck(j));
- }
-
- // parseGridTrackSize iterated over the repeat arguments, move to the next value.
- m_valueList->next();
- return true;
-}
-
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridTrackSize(CSSParserValueList& inputList)
-{
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
-
- CSSParserValue* currentValue = inputList.current();
- inputList.next();
-
- if (currentValue->id == CSSValueAuto)
- return cssValuePool().createIdentifierValue(CSSValueAuto);
-
- if (currentValue->unit == CSSParserValue::Function && equalIgnoringCase(currentValue->function->name, "minmax(")) {
- // The spec defines the following grammar: minmax( <track-breadth> , <track-breadth> )
- CSSParserValueList* arguments = currentValue->function->args.get();
- if (!arguments || arguments->size() != 3 || !isComma(arguments->valueAt(1)))
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> minTrackBreadth = parseGridBreadth(arguments->valueAt(0));
- if (!minTrackBreadth)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> maxTrackBreadth = parseGridBreadth(arguments->valueAt(2));
- if (!maxTrackBreadth)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSValueList> parsedArguments = CSSValueList::createCommaSeparated();
- parsedArguments->append(minTrackBreadth);
- parsedArguments->append(maxTrackBreadth);
- return CSSFunctionValue::create("minmax(", parsedArguments);
- }
-
- return parseGridBreadth(currentValue);
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseGridBreadth(CSSParserValue* currentValue)
-{
- if (currentValue->id == CSSValueMinContent || currentValue->id == CSSValueMaxContent)
- return cssValuePool().createIdentifierValue(currentValue->id);
-
- if (currentValue->unit == CSSPrimitiveValue::CSS_FR) {
- double flexValue = currentValue->fValue;
-
- // Fractional unit is a non-negative dimension.
- if (flexValue <= 0)
- return nullptr;
-
- return cssValuePool().createValue(flexValue, CSSPrimitiveValue::CSS_FR);
- }
-
- if (!validUnit(currentValue, FNonNeg | FLength | FPercent))
- return nullptr;
-
- return createPrimitiveNumericValue(currentValue);
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridTemplateAreas()
-{
- NamedGridAreaMap gridAreaMap;
- size_t rowCount = 0;
- size_t columnCount = 0;
-
- while (CSSParserValue* currentValue = m_valueList->current()) {
- if (currentValue->unit != CSSPrimitiveValue::CSS_STRING)
- return nullptr;
-
- String gridRowNames = currentValue->string;
- if (!gridRowNames.length())
- return nullptr;
-
- Vector<String> columnNames;
- gridRowNames.split(' ', columnNames);
-
- if (!columnCount) {
- columnCount = columnNames.size();
- ASSERT(columnCount);
- } else if (columnCount != columnNames.size()) {
- // The declaration is invalid is all the rows don't have the number of columns.
- return nullptr;
- }
-
- for (size_t currentCol = 0; currentCol < columnCount; ++currentCol) {
- const String& gridAreaName = columnNames[currentCol];
-
- // Unamed areas are always valid (we consider them to be 1x1).
- if (gridAreaName == ".")
- continue;
-
- // We handle several grid areas with the same name at once to simplify the validation code.
- size_t lookAheadCol;
- for (lookAheadCol = currentCol; lookAheadCol < (columnCount - 1); ++lookAheadCol) {
- if (columnNames[lookAheadCol + 1] != gridAreaName)
- break;
- }
-
- NamedGridAreaMap::iterator gridAreaIt = gridAreaMap.find(gridAreaName);
- if (gridAreaIt == gridAreaMap.end()) {
- gridAreaMap.add(gridAreaName, GridCoordinate(GridSpan(rowCount, rowCount), GridSpan(currentCol, lookAheadCol)));
- } else {
- GridCoordinate& gridCoordinate = gridAreaIt->value;
-
- // The following checks test that the grid area is a single filled-in rectangle.
- // 1. The new row is adjacent to the previously parsed row.
- if (rowCount != gridCoordinate.rows.initialPositionIndex + 1)
- return nullptr;
-
- // 2. The new area starts at the same position as the previously parsed area.
- if (currentCol != gridCoordinate.columns.initialPositionIndex)
- return nullptr;
-
- // 3. The new area ends at the same position as the previously parsed area.
- if (lookAheadCol != gridCoordinate.columns.finalPositionIndex)
- return nullptr;
-
- ++gridCoordinate.rows.finalPositionIndex;
- }
- currentCol = lookAheadCol;
- }
-
- ++rowCount;
- m_valueList->next();
- }
-
- if (!rowCount || !columnCount)
- return nullptr;
-
- return CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount);
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseCounterContent(CSSParserValueList* args, bool counters)
-{
- unsigned numArgs = args->size();
- if (counters && numArgs != 3 && numArgs != 5)
- return nullptr;
- if (!counters && numArgs != 1 && numArgs != 3)
- return nullptr;
-
- CSSParserValue* i = args->current();
- if (i->unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> identifier = createPrimitiveStringValue(i);
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> separator;
- if (!counters)
- separator = cssValuePool().createValue(String(), CSSPrimitiveValue::CSS_STRING);
- else {
- i = args->next();
- if (i->unit != CSSParserValue::Operator || i->iValue != ',')
- return nullptr;
-
- i = args->next();
- if (i->unit != CSSPrimitiveValue::CSS_STRING)
- return nullptr;
-
- separator = createPrimitiveStringValue(i);
- }
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> listStyle;
- i = args->next();
- if (!i) // Make the list style default decimal
- listStyle = cssValuePool().createIdentifierValue(CSSValueDecimal);
- else {
- if (i->unit != CSSParserValue::Operator || i->iValue != ',')
- return nullptr;
-
- i = args->next();
- if (i->unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
-
- CSSValueID listStyleID = CSSValueInvalid;
- if (i->id == CSSValueNone || (i->id >= CSSValueDisc && i->id <= CSSValueKatakanaIroha))
- listStyleID = i->id;
- else
- return nullptr;
-
- listStyle = cssValuePool().createIdentifierValue(listStyleID);
- }
-
- return cssValuePool().createValue(Counter::create(identifier.release(), listStyle.release(), separator.release()));
-}
-
-bool CSSPropertyParser::parseClipShape(CSSPropertyID propId, bool important)
-{
- CSSParserValue* value = m_valueList->current();
- CSSParserValueList* args = value->function->args.get();
-
- if (!equalIgnoringCase(value->function->name, "rect(") || !args)
- return false;
-
- // rect(t, r, b, l) || rect(t r b l)
- if (args->size() != 4 && args->size() != 7)
- return false;
- RefPtrWillBeRawPtr<Rect> rect = Rect::create();
- bool valid = true;
- int i = 0;
- CSSParserValue* a = args->current();
- while (a) {
- valid = a->id == CSSValueAuto || validUnit(a, FLength);
- if (!valid)
- break;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> length = a->id == CSSValueAuto ?
- cssValuePool().createIdentifierValue(CSSValueAuto) :
- createPrimitiveNumericValue(a);
- if (i == 0)
- rect->setTop(length);
- else if (i == 1)
- rect->setRight(length);
- else if (i == 2)
- rect->setBottom(length);
- else
- rect->setLeft(length);
- a = args->next();
- if (a && args->size() == 7) {
- if (a->unit == CSSParserValue::Operator && a->iValue == ',') {
- a = args->next();
- } else {
- valid = false;
- break;
- }
- }
- i++;
- }
- if (valid) {
- addProperty(propId, cssValuePool().createValue(rect.release()), important);
- m_valueList->next();
- return true;
- }
- return false;
-}
-
-static void completeBorderRadii(RefPtrWillBeRawPtr<CSSPrimitiveValue> radii[4])
-{
- if (radii[3])
- return;
- if (!radii[2]) {
- if (!radii[1])
- radii[1] = radii[0];
- radii[2] = radii[0];
- }
- radii[3] = radii[1];
-}
-
-// FIXME: This should be refactored with CSSParser::parseBorderRadius.
-// CSSParser::parseBorderRadius contains support for some legacy radius construction.
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseInsetRoundedCorners(PassRefPtrWillBeRawPtr<CSSBasicShapeInset> shape, CSSParserValueList* args)
-{
- CSSParserValue* argument = args->next();
-
- if (!argument)
- return nullptr;
-
- CSSParserValueList radiusArguments;
- while (argument) {
- radiusArguments.addValue(*argument);
- argument = args->next();
- }
-
- unsigned num = radiusArguments.size();
- if (!num || num > 9)
- return nullptr;
-
- // FIXME: Refactor completeBorderRadii and the array
- RefPtrWillBeRawPtr<CSSPrimitiveValue> radii[2][4];
-
- unsigned indexAfterSlash = 0;
- for (unsigned i = 0; i < num; ++i) {
- CSSParserValue* value = radiusArguments.valueAt(i);
- if (value->unit == CSSParserValue::Operator) {
- if (value->iValue != '/')
- return nullptr;
-
- if (!i || indexAfterSlash || i + 1 == num)
- return nullptr;
-
- indexAfterSlash = i + 1;
- completeBorderRadii(radii[0]);
- continue;
- }
-
- if (i - indexAfterSlash >= 4)
- return nullptr;
-
- if (!validUnit(value, FLength | FPercent | FNonNeg))
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> radius = createPrimitiveNumericValue(value);
-
- if (!indexAfterSlash)
- radii[0][i] = radius;
- else
- radii[1][i - indexAfterSlash] = radius.release();
- }
-
- if (!indexAfterSlash) {
- completeBorderRadii(radii[0]);
- for (unsigned i = 0; i < 4; ++i)
- radii[1][i] = radii[0][i];
- } else {
- completeBorderRadii(radii[1]);
- }
- shape->setTopLeftRadius(createPrimitiveValuePair(radii[0][0].release(), radii[1][0].release()));
- shape->setTopRightRadius(createPrimitiveValuePair(radii[0][1].release(), radii[1][1].release()));
- shape->setBottomRightRadius(createPrimitiveValuePair(radii[0][2].release(), radii[1][2].release()));
- shape->setBottomLeftRadius(createPrimitiveValuePair(radii[0][3].release(), radii[1][3].release()));
-
- return shape;
-}
-
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapeInset(CSSParserValueList* args)
-{
- ASSERT(args);
-
- RefPtrWillBeRawPtr<CSSBasicShapeInset> shape = CSSBasicShapeInset::create();
-
- CSSParserValue* argument = args->current();
- WillBeHeapVector<RefPtrWillBeMember<CSSPrimitiveValue> > widthArguments;
- bool hasRoundedInset = false;
-
- while (argument) {
- if (argument->unit == CSSPrimitiveValue::CSS_IDENT && equalIgnoringCase(argument->string, "round")) {
- hasRoundedInset = true;
- break;
- }
-
- Units unitFlags = FLength | FPercent;
- if (!validUnit(argument, unitFlags) || widthArguments.size() > 4)
- return nullptr;
-
- widthArguments.append(createPrimitiveNumericValue(argument));
- argument = args->next();
- }
-
- switch (widthArguments.size()) {
- case 1: {
- shape->updateShapeSize1Value(widthArguments[0].get());
- break;
- }
- case 2: {
- shape->updateShapeSize2Values(widthArguments[0].get(), widthArguments[1].get());
- break;
- }
- case 3: {
- shape->updateShapeSize3Values(widthArguments[0].get(), widthArguments[1].get(), widthArguments[2].get());
- break;
- }
- case 4: {
- shape->updateShapeSize4Values(widthArguments[0].get(), widthArguments[1].get(), widthArguments[2].get(), widthArguments[3].get());
- break;
- }
- default:
- return nullptr;
- }
-
- if (hasRoundedInset)
- return parseInsetRoundedCorners(shape, args);
- return shape;
-}
-
-static bool isItemPositionKeyword(CSSValueID id)
-{
- return id == CSSValueStart || id == CSSValueEnd || id == CSSValueCenter
- || id == CSSValueSelfStart || id == CSSValueSelfEnd || id == CSSValueFlexStart
- || id == CSSValueFlexEnd || id == CSSValueLeft || id == CSSValueRight;
-}
-
-bool CSSPropertyParser::parseItemPositionOverflowPosition(CSSPropertyID propId, bool important)
-{
- // auto | baseline | stretch | [<item-position> && <overflow-position>? ]
- // <item-position> = center | start | end | self-start | self-end | flex-start | flex-end | left | right;
- // <overflow-position> = true | safe
-
- CSSParserValue* value = m_valueList->current();
-
- if (value->id == CSSValueAuto || value->id == CSSValueBaseline || value->id == CSSValueStretch) {
- if (m_valueList->next())
- return false;
-
- addProperty(propId, cssValuePool().createIdentifierValue(value->id), important);
- return true;
- }
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> position = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> overflowAlignmentKeyword = nullptr;
- if (isItemPositionKeyword(value->id)) {
- position = cssValuePool().createIdentifierValue(value->id);
- value = m_valueList->next();
- if (value) {
- if (value->id == CSSValueTrue || value->id == CSSValueSafe)
- overflowAlignmentKeyword = cssValuePool().createIdentifierValue(value->id);
- else
- return false;
- }
- } else if (value->id == CSSValueTrue || value->id == CSSValueSafe) {
- overflowAlignmentKeyword = cssValuePool().createIdentifierValue(value->id);
- value = m_valueList->next();
- if (value) {
- if (isItemPositionKeyword(value->id))
- position = cssValuePool().createIdentifierValue(value->id);
- else
- return false;
- }
- } else {
- return false;
- }
-
- if (m_valueList->next())
- return false;
-
- ASSERT(position);
- if (overflowAlignmentKeyword)
- addProperty(propId, createPrimitiveValuePair(position, overflowAlignmentKeyword), important);
- else
- addProperty(propId, position.release(), important);
-
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapeRectangle(CSSParserValueList* args)
-{
- ASSERT(args);
-
- // rect(x, y, width, height, [[rx], ry])
- if (args->size() != 7 && args->size() != 9 && args->size() != 11)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSBasicShapeRectangle> shape = CSSBasicShapeRectangle::create();
-
- unsigned argumentNumber = 0;
- CSSParserValue* argument = args->current();
- while (argument) {
- Units unitFlags = FLength | FPercent;
- if (argumentNumber > 1) {
- // Arguments width, height, rx, and ry cannot be negative.
- unitFlags = unitFlags | FNonNeg;
- }
- if (!validUnit(argument, unitFlags))
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> length = createPrimitiveNumericValue(argument);
- ASSERT(argumentNumber < 6);
- switch (argumentNumber) {
- case 0:
- shape->setX(length);
- break;
- case 1:
- shape->setY(length);
- break;
- case 2:
- shape->setWidth(length);
- break;
- case 3:
- shape->setHeight(length);
- break;
- case 4:
- shape->setRadiusX(length);
- break;
- case 5:
- shape->setRadiusY(length);
- break;
- }
- argument = args->next();
- if (argument) {
- if (!isComma(argument))
- return nullptr;
-
- argument = args->next();
- }
- argumentNumber++;
- }
-
- if (argumentNumber < 4)
- return nullptr;
- return shape;
-}
-
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapeInsetRectangle(CSSParserValueList* args)
-{
- ASSERT(args);
-
- // inset-rectangle(top, right, bottom, left, [[rx], ry])
- if (args->size() != 7 && args->size() != 9 && args->size() != 11)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSBasicShapeInsetRectangle> shape = CSSBasicShapeInsetRectangle::create();
-
- unsigned argumentNumber = 0;
- CSSParserValue* argument = args->current();
- while (argument) {
- Units unitFlags = FLength | FPercent | FNonNeg;
- if (!validUnit(argument, unitFlags))
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> length = createPrimitiveNumericValue(argument);
- ASSERT(argumentNumber < 6);
- switch (argumentNumber) {
- case 0:
- shape->setTop(length);
- break;
- case 1:
- shape->setRight(length);
- break;
- case 2:
- shape->setBottom(length);
- break;
- case 3:
- shape->setLeft(length);
- break;
- case 4:
- shape->setRadiusX(length);
- break;
- case 5:
- shape->setRadiusY(length);
- break;
- }
- argument = args->next();
- if (argument) {
- if (!isComma(argument))
- return nullptr;
-
- argument = args->next();
- }
- argumentNumber++;
- }
-
- if (argumentNumber < 4)
- return nullptr;
- return shape;
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseShapeRadius(CSSParserValue* value)
-{
- if (value->id == CSSValueClosestSide || value->id == CSSValueFarthestSide)
- return cssValuePool().createIdentifierValue(value->id);
-
- if (!validUnit(value, FLength | FPercent | FNonNeg))
- return nullptr;
-
- return createPrimitiveNumericValue(value);
-}
-
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapeCircle(CSSParserValueList* args)
-{
- ASSERT(args);
-
- // circle(radius)
- // circle(radius at <position>
- // circle(at <position>)
- // where position defines centerX and centerY using a CSS <position> data type.
- RefPtrWillBeRawPtr<CSSBasicShapeCircle> shape = CSSBasicShapeCircle::create();
-
- for (CSSParserValue* argument = args->current(); argument; argument = args->next()) {
- // The call to parseFillPosition below should consume all of the
- // arguments except the first two. Thus, and index greater than one
- // indicates an invalid production.
- if (args->currentIndex() > 1)
- return nullptr;
-
- if (!args->currentIndex() && argument->id != CSSValueAt) {
- if (RefPtrWillBeRawPtr<CSSPrimitiveValue> radius = parseShapeRadius(argument)) {
- shape->setRadius(radius);
- continue;
- }
-
- return nullptr;
- }
-
- if (argument->id == CSSValueAt) {
- RefPtrWillBeRawPtr<CSSValue> centerX;
- RefPtrWillBeRawPtr<CSSValue> centerY;
- args->next(); // set list to start of position center
- parseFillPosition(args, centerX, centerY);
- if (centerX && centerY) {
- ASSERT(centerX->isPrimitiveValue());
- ASSERT(centerY->isPrimitiveValue());
- shape->setCenterX(toCSSPrimitiveValue(centerX.get()));
- shape->setCenterY(toCSSPrimitiveValue(centerY.get()));
- } else {
- return nullptr;
- }
- } else {
- return nullptr;
- }
- }
-
- return shape;
-}
-
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseDeprecatedBasicShapeCircle(CSSParserValueList* args)
-{
- ASSERT(args);
-
- // circle(centerX, centerY, radius)
- if (args->size() != 5)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSDeprecatedBasicShapeCircle> shape = CSSDeprecatedBasicShapeCircle::create();
-
- unsigned argumentNumber = 0;
- CSSParserValue* argument = args->current();
- while (argument) {
- Units unitFlags = FLength | FPercent;
- if (argumentNumber == 2) {
- // Argument radius cannot be negative.
- unitFlags = unitFlags | FNonNeg;
- }
-
- if (!validUnit(argument, unitFlags))
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> length = createPrimitiveNumericValue(argument);
- ASSERT(argumentNumber < 3);
- switch (argumentNumber) {
- case 0:
- shape->setCenterX(length);
- break;
- case 1:
- shape->setCenterY(length);
- break;
- case 2:
- shape->setRadius(length);
- break;
- }
-
- argument = args->next();
- if (argument) {
- if (!isComma(argument))
- return nullptr;
- argument = args->next();
- }
- argumentNumber++;
- }
-
- if (argumentNumber < 3)
- return nullptr;
- return shape;
-}
-
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapeEllipse(CSSParserValueList* args)
-{
- ASSERT(args);
-
- // ellipse(radiusX)
- // ellipse(radiusX at <position>
- // ellipse(radiusX radiusY)
- // ellipse(radiusX radiusY at <position>
- // ellipse(at <position>)
- // where position defines centerX and centerY using a CSS <position> data type.
- RefPtrWillBeRawPtr<CSSBasicShapeEllipse> shape = CSSBasicShapeEllipse::create();
-
- for (CSSParserValue* argument = args->current(); argument; argument = args->next()) {
- // The call to parseFillPosition below should consume all of the
- // arguments except the first three. Thus, an index greater than two
- // indicates an invalid production.
- if (args->currentIndex() > 2)
- return nullptr;
-
- if (args->currentIndex() < 2 && argument->id != CSSValueAt) {
- if (RefPtrWillBeRawPtr<CSSPrimitiveValue> radius = parseShapeRadius(argument)) {
- if (!shape->radiusX())
- shape->setRadiusX(radius);
- else
- shape->setRadiusY(radius);
- continue;
- }
-
- return nullptr;
- }
-
- if (argument->id != CSSValueAt)
- return nullptr;
- RefPtrWillBeRawPtr<CSSValue> centerX;
- RefPtrWillBeRawPtr<CSSValue> centerY;
- args->next(); // set list to start of position center
- parseFillPosition(args, centerX, centerY);
- if (!centerX || !centerY)
- return nullptr;
-
- ASSERT(centerX->isPrimitiveValue());
- ASSERT(centerY->isPrimitiveValue());
- shape->setCenterX(toCSSPrimitiveValue(centerX.get()));
- shape->setCenterY(toCSSPrimitiveValue(centerY.get()));
- }
-
- return shape;
-}
-
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseDeprecatedBasicShapeEllipse(CSSParserValueList* args)
-{
- ASSERT(args);
-
- // ellipse(centerX, centerY, radiusX, radiusY)
- if (args->size() != 7)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSDeprecatedBasicShapeEllipse> shape = CSSDeprecatedBasicShapeEllipse::create();
- unsigned argumentNumber = 0;
- CSSParserValue* argument = args->current();
- while (argument) {
- Units unitFlags = FLength | FPercent;
- if (argumentNumber > 1) {
- // Arguments radiusX and radiusY cannot be negative.
- unitFlags = unitFlags | FNonNeg;
- }
- if (!validUnit(argument, unitFlags))
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> length = createPrimitiveNumericValue(argument);
- ASSERT(argumentNumber < 4);
- switch (argumentNumber) {
- case 0:
- shape->setCenterX(length);
- break;
- case 1:
- shape->setCenterY(length);
- break;
- case 2:
- shape->setRadiusX(length);
- break;
- case 3:
- shape->setRadiusY(length);
- break;
- }
-
- argument = args->next();
- if (argument) {
- if (!isComma(argument))
- return nullptr;
- argument = args->next();
- }
- argumentNumber++;
- }
-
- if (argumentNumber < 4)
- return nullptr;
- return shape;
-}
-
-PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapePolygon(CSSParserValueList* args)
-{
- ASSERT(args);
-
- unsigned size = args->size();
- if (!size)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSBasicShapePolygon> shape = CSSBasicShapePolygon::create();
-
- CSSParserValue* argument = args->current();
- if (argument->id == CSSValueEvenodd || argument->id == CSSValueNonzero) {
- shape->setWindRule(argument->id == CSSValueEvenodd ? RULE_EVENODD : RULE_NONZERO);
-
- if (!isComma(args->next()))
- return nullptr;
-
- argument = args->next();
- size -= 2;
- }
-
- // <length> <length>, ... <length> <length> -> each pair has 3 elements except the last one
- if (!size || (size % 3) - 2)
- return nullptr;
-
- CSSParserValue* argumentX = argument;
- while (argumentX) {
- if (!validUnit(argumentX, FLength | FPercent))
- return nullptr;
-
- CSSParserValue* argumentY = args->next();
- if (!argumentY || !validUnit(argumentY, FLength | FPercent))
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> xLength = createPrimitiveNumericValue(argumentX);
- RefPtrWillBeRawPtr<CSSPrimitiveValue> yLength = createPrimitiveNumericValue(argumentY);
-
- shape->appendPoint(xLength.release(), yLength.release());
-
- CSSParserValue* commaOrNull = args->next();
- if (!commaOrNull)
- argumentX = 0;
- else if (!isComma(commaOrNull))
- return nullptr;
- else
- argumentX = args->next();
- }
-
- return shape;
-}
-
-static bool isBoxValue(CSSValueID valueId)
-{
- switch (valueId) {
- case CSSValueContentBox:
- case CSSValuePaddingBox:
- case CSSValueBorderBox:
- case CSSValueMarginBox:
- return true;
- default:
- break;
- }
-
- return false;
-}
-
-// FIXME This function is temporary to allow for an orderly transition between
-// the new CSS Shapes circle and ellipse syntax. It will be removed when the
-// old syntax is removed.
-static bool isDeprecatedBasicShape(CSSParserValueList* args)
-{
- for (unsigned i = args->currentIndex(); i < args->size(); ++i) {
- CSSParserValue* value = args->valueAt(i);
- if (isComma(value))
- return true;
- }
-
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseShapeProperty(CSSPropertyID propId)
-{
- if (!RuntimeEnabledFeatures::cssShapesEnabled())
- return nullptr;
-
- CSSParserValue* value = m_valueList->current();
- CSSValueID valueId = value->id;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> boxValue;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> shapeValue;
-
- if (valueId == CSSValueNone
- || (valueId == CSSValueOutsideShape && propId == CSSPropertyShapeInside)) {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> keywordValue = parseValidPrimitive(valueId, value);
- m_valueList->next();
- return keywordValue.release();
- }
-
- RefPtrWillBeRawPtr<CSSValue> imageValue;
- if (valueId != CSSValueNone && parseFillImage(m_valueList.get(), imageValue)) {
- m_valueList->next();
- return imageValue.release();
- }
-
- if (value->unit == CSSParserValue::Function) {
- shapeValue = parseBasicShape();
- if (!shapeValue)
- return nullptr;
- } else if (isBoxValue(valueId)) {
- boxValue = parseValidPrimitive(valueId, value);
- m_valueList->next();
- } else {
- return nullptr;
- }
-
- ASSERT(shapeValue || boxValue);
- value = m_valueList->current();
-
- if (value) {
- valueId = value->id;
- if (boxValue && value->unit == CSSParserValue::Function) {
- shapeValue = parseBasicShape();
- if (!shapeValue)
- return nullptr;
- } else if (shapeValue && isBoxValue(valueId)) {
- boxValue = parseValidPrimitive(valueId, value);
- m_valueList->next();
- } else {
- return nullptr;
- }
-
- ASSERT(shapeValue && boxValue);
- shapeValue->getShapeValue()->setLayoutBox(boxValue.release());
- }
-
- if (shapeValue)
- return shapeValue.release();
- return boxValue.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseBasicShape()
-{
- CSSParserValue* value = m_valueList->current();
- ASSERT(value->unit == CSSParserValue::Function);
- CSSParserValueList* args = value->function->args.get();
-
- if (!args)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSBasicShape> shape;
- if (equalIgnoringCase(value->function->name, "rectangle("))
- shape = parseBasicShapeRectangle(args);
- else if (equalIgnoringCase(value->function->name, "circle("))
- if (isDeprecatedBasicShape(args))
- shape = parseDeprecatedBasicShapeCircle(args);
- else
- shape = parseBasicShapeCircle(args);
- else if (equalIgnoringCase(value->function->name, "ellipse("))
- if (isDeprecatedBasicShape(args))
- shape = parseDeprecatedBasicShapeEllipse(args);
- else
- shape = parseBasicShapeEllipse(args);
- else if (equalIgnoringCase(value->function->name, "polygon("))
- shape = parseBasicShapePolygon(args);
- else if (equalIgnoringCase(value->function->name, "inset-rectangle("))
- shape = parseBasicShapeInsetRectangle(args);
- else if (equalIgnoringCase(value->function->name, "inset("))
- shape = parseBasicShapeInset(args);
-
- if (!shape)
- return nullptr;
-
- m_valueList->next();
- return cssValuePool().createValue(shape.release());
-}
-
-// [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? 'font-family'
-bool CSSPropertyParser::parseFont(bool important)
-{
- // Let's check if there is an inherit or initial somewhere in the shorthand.
- for (unsigned i = 0; i < m_valueList->size(); ++i) {
- if (m_valueList->valueAt(i)->id == CSSValueInherit || m_valueList->valueAt(i)->id == CSSValueInitial)
- return false;
- }
-
- ShorthandScope scope(this, CSSPropertyFont);
- // Optional font-style, font-variant and font-weight.
- bool fontStyleParsed = false;
- bool fontVariantParsed = false;
- bool fontWeightParsed = false;
- CSSParserValue* value;
- while ((value = m_valueList->current())) {
- if (!fontStyleParsed && isValidKeywordPropertyAndValue(CSSPropertyFontStyle, value->id, m_context)) {
- addProperty(CSSPropertyFontStyle, cssValuePool().createIdentifierValue(value->id), important);
- fontStyleParsed = true;
- } else if (!fontVariantParsed && (value->id == CSSValueNormal || value->id == CSSValueSmallCaps)) {
- // Font variant in the shorthand is particular, it only accepts normal or small-caps.
- addProperty(CSSPropertyFontVariant, cssValuePool().createIdentifierValue(value->id), important);
- fontVariantParsed = true;
- } else if (!fontWeightParsed && parseFontWeight(important))
- fontWeightParsed = true;
- else
- break;
- m_valueList->next();
- }
-
- if (!value)
- return false;
-
- if (!fontStyleParsed)
- addProperty(CSSPropertyFontStyle, cssValuePool().createIdentifierValue(CSSValueNormal), important, true);
- if (!fontVariantParsed)
- addProperty(CSSPropertyFontVariant, cssValuePool().createIdentifierValue(CSSValueNormal), important, true);
- if (!fontWeightParsed)
- addProperty(CSSPropertyFontWeight, cssValuePool().createIdentifierValue(CSSValueNormal), important, true);
-
- // Now a font size _must_ come.
- // <absolute-size> | <relative-size> | <length> | <percentage> | inherit
- if (!parseFontSize(important))
- return false;
-
- value = m_valueList->current();
- if (!value)
- return false;
-
- if (isForwardSlashOperator(value)) {
- // The line-height property.
- value = m_valueList->next();
- if (!value)
- return false;
- if (!parseLineHeight(important))
- return false;
- } else
- addProperty(CSSPropertyLineHeight, cssValuePool().createIdentifierValue(CSSValueNormal), important, true);
-
- // Font family must come now.
- RefPtrWillBeRawPtr<CSSValue> parsedFamilyValue = parseFontFamily();
- if (!parsedFamilyValue)
- return false;
-
- addProperty(CSSPropertyFontFamily, parsedFamilyValue.release(), important);
-
- // FIXME: http://www.w3.org/TR/2011/WD-css3-fonts-20110324/#font-prop requires that
- // "font-stretch", "font-size-adjust", and "font-kerning" be reset to their initial values
- // but we don't seem to support them at the moment. They should also be added here once implemented.
- if (m_valueList->current())
- return false;
-
- return true;
-}
-
-class FontFamilyValueBuilder {
- DISALLOW_ALLOCATION();
-public:
- FontFamilyValueBuilder(CSSValueList* list)
- : m_list(list)
- {
- }
-
- void add(const CSSParserString& string)
- {
- if (!m_builder.isEmpty())
- m_builder.append(' ');
-
- if (string.is8Bit()) {
- m_builder.append(string.characters8(), string.length());
- return;
- }
-
- m_builder.append(string.characters16(), string.length());
- }
-
- void commit()
- {
- if (m_builder.isEmpty())
- return;
- m_list->append(cssValuePool().createFontFamilyValue(m_builder.toString()));
- m_builder.clear();
- }
-
-private:
- StringBuilder m_builder;
- CSSValueList* m_list;
-};
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseFontFamily()
-{
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
- CSSParserValue* value = m_valueList->current();
-
- FontFamilyValueBuilder familyBuilder(list.get());
- bool inFamily = false;
-
- while (value) {
- CSSParserValue* nextValue = m_valueList->next();
- bool nextValBreaksFont = !nextValue ||
- (nextValue->unit == CSSParserValue::Operator && nextValue->iValue == ',');
- bool nextValIsFontName = nextValue &&
- ((nextValue->id >= CSSValueSerif && nextValue->id <= CSSValueWebkitBody) ||
- (nextValue->unit == CSSPrimitiveValue::CSS_STRING || nextValue->unit == CSSPrimitiveValue::CSS_IDENT));
-
- bool valueIsKeyword = value->id == CSSValueInitial || value->id == CSSValueInherit || value->id == CSSValueDefault;
- if (valueIsKeyword && !inFamily) {
- if (nextValBreaksFont)
- value = m_valueList->next();
- else if (nextValIsFontName)
- value = nextValue;
- continue;
- }
-
- if (value->id >= CSSValueSerif && value->id <= CSSValueWebkitBody) {
- if (inFamily)
- familyBuilder.add(value->string);
- else if (nextValBreaksFont || !nextValIsFontName)
- list->append(cssValuePool().createIdentifierValue(value->id));
- else {
- familyBuilder.commit();
- familyBuilder.add(value->string);
- inFamily = true;
- }
- } else if (value->unit == CSSPrimitiveValue::CSS_STRING) {
- // Strings never share in a family name.
- inFamily = false;
- familyBuilder.commit();
- list->append(cssValuePool().createFontFamilyValue(value->string));
- } else if (value->unit == CSSPrimitiveValue::CSS_IDENT) {
- if (inFamily)
- familyBuilder.add(value->string);
- else if (nextValBreaksFont || !nextValIsFontName)
- list->append(cssValuePool().createFontFamilyValue(value->string));
- else {
- familyBuilder.commit();
- familyBuilder.add(value->string);
- inFamily = true;
- }
- } else {
- break;
- }
-
- if (!nextValue)
- break;
-
- if (nextValBreaksFont) {
- value = m_valueList->next();
- familyBuilder.commit();
- inFamily = false;
- }
- else if (nextValIsFontName)
- value = nextValue;
- else
- break;
- }
- familyBuilder.commit();
-
- if (!list->length())
- list = nullptr;
- return list.release();
-}
-
-bool CSSPropertyParser::parseLineHeight(bool important)
-{
- CSSParserValue* value = m_valueList->current();
- CSSValueID id = value->id;
- bool validPrimitive = false;
- // normal | <number> | <length> | <percentage> | inherit
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FNumber | FLength | FPercent | FNonNeg));
- if (validPrimitive && (!m_valueList->next() || inShorthand()))
- addProperty(CSSPropertyLineHeight, parseValidPrimitive(id, value), important);
- return validPrimitive;
-}
-
-bool CSSPropertyParser::parseFontSize(bool important)
-{
- CSSParserValue* value = m_valueList->current();
- CSSValueID id = value->id;
- bool validPrimitive = false;
- // <absolute-size> | <relative-size> | <length> | <percentage> | inherit
- if (id >= CSSValueXxSmall && id <= CSSValueLarger)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength | FPercent | FNonNeg);
- if (validPrimitive && (!m_valueList->next() || inShorthand()))
- addProperty(CSSPropertyFontSize, parseValidPrimitive(id, value), important);
- return validPrimitive;
-}
-
-bool CSSPropertyParser::parseFontVariant(bool important)
-{
- RefPtrWillBeRawPtr<CSSValueList> values;
- if (m_valueList->size() > 1)
- values = CSSValueList::createCommaSeparated();
- CSSParserValue* val;
- bool expectComma = false;
- while ((val = m_valueList->current())) {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue;
- if (!expectComma) {
- expectComma = true;
- if (val->id == CSSValueNormal || val->id == CSSValueSmallCaps)
- parsedValue = cssValuePool().createIdentifierValue(val->id);
- else if (val->id == CSSValueAll && !values) {
- // 'all' is only allowed in @font-face and with no other values. Make a value list to
- // indicate that we are in the @font-face case.
- values = CSSValueList::createCommaSeparated();
- parsedValue = cssValuePool().createIdentifierValue(val->id);
- }
- } else if (val->unit == CSSParserValue::Operator && val->iValue == ',') {
- expectComma = false;
- m_valueList->next();
- continue;
- }
-
- if (!parsedValue)
- return false;
-
- m_valueList->next();
-
- if (values)
- values->append(parsedValue.release());
- else {
- addProperty(CSSPropertyFontVariant, parsedValue.release(), important);
- return true;
- }
- }
-
- if (values && values->length()) {
- m_hasFontFaceOnlyValues = true;
- addProperty(CSSPropertyFontVariant, values.release(), important);
- return true;
- }
-
- return false;
-}
-
-bool CSSPropertyParser::parseFontWeight(bool important)
-{
- CSSParserValue* value = m_valueList->current();
- if ((value->id >= CSSValueNormal) && (value->id <= CSSValue900)) {
- addProperty(CSSPropertyFontWeight, cssValuePool().createIdentifierValue(value->id), important);
- return true;
- }
- if (validUnit(value, FInteger | FNonNeg, HTMLQuirksMode)) {
- int weight = static_cast<int>(value->fValue);
- if (!(weight % 100) && weight >= 100 && weight <= 900) {
- addProperty(CSSPropertyFontWeight, cssValuePool().createIdentifierValue(static_cast<CSSValueID>(CSSValue100 + weight / 100 - 1)), important);
- return true;
- }
- }
- return false;
-}
-
-bool CSSPropertyParser::parseFontFaceSrcURI(CSSValueList* valueList)
-{
- RefPtrWillBeRawPtr<CSSFontFaceSrcValue> uriValue(CSSFontFaceSrcValue::create(completeURL(m_valueList->current()->string)));
-
- CSSParserValue* value = m_valueList->next();
- if (!value) {
- valueList->append(uriValue.release());
- return true;
- }
- if (value->unit == CSSParserValue::Operator && value->iValue == ',') {
- m_valueList->next();
- valueList->append(uriValue.release());
- return true;
- }
-
- if (value->unit != CSSParserValue::Function || !equalIgnoringCase(value->function->name, "format("))
- return false;
-
- // FIXME: http://www.w3.org/TR/2011/WD-css3-fonts-20111004/ says that format() contains a comma-separated list of strings,
- // but CSSFontFaceSrcValue stores only one format. Allowing one format for now.
- CSSParserValueList* args = value->function->args.get();
- if (!args || args->size() != 1 || (args->current()->unit != CSSPrimitiveValue::CSS_STRING && args->current()->unit != CSSPrimitiveValue::CSS_IDENT))
- return false;
- uriValue->setFormat(args->current()->string);
- valueList->append(uriValue.release());
- value = m_valueList->next();
- if (value && value->unit == CSSParserValue::Operator && value->iValue == ',')
- m_valueList->next();
- return true;
-}
-
-bool CSSPropertyParser::parseFontFaceSrcLocal(CSSValueList* valueList)
-{
- CSSParserValueList* args = m_valueList->current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- if (args->size() == 1 && args->current()->unit == CSSPrimitiveValue::CSS_STRING)
- valueList->append(CSSFontFaceSrcValue::createLocal(args->current()->string));
- else if (args->current()->unit == CSSPrimitiveValue::CSS_IDENT) {
- StringBuilder builder;
- for (CSSParserValue* localValue = args->current(); localValue; localValue = args->next()) {
- if (localValue->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
- if (!builder.isEmpty())
- builder.append(' ');
- builder.append(localValue->string);
- }
- valueList->append(CSSFontFaceSrcValue::createLocal(builder.toString()));
- } else
- return false;
-
- if (CSSParserValue* value = m_valueList->next()) {
- if (value->unit == CSSParserValue::Operator && value->iValue == ',')
- m_valueList->next();
- }
- return true;
-}
-
-bool CSSPropertyParser::parseFontFaceSrc()
-{
- RefPtrWillBeRawPtr<CSSValueList> values(CSSValueList::createCommaSeparated());
-
- while (CSSParserValue* value = m_valueList->current()) {
- if (value->unit == CSSPrimitiveValue::CSS_URI) {
- if (!parseFontFaceSrcURI(values.get()))
- return false;
- } else if (value->unit == CSSParserValue::Function && equalIgnoringCase(value->function->name, "local(")) {
- if (!parseFontFaceSrcLocal(values.get()))
- return false;
- } else
- return false;
- }
- if (!values->length())
- return false;
-
- addProperty(CSSPropertySrc, values.release(), m_important);
- m_valueList->next();
- return true;
-}
-
-bool CSSPropertyParser::parseFontFaceUnicodeRange()
-{
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated();
- bool failed = false;
- bool operatorExpected = false;
- for (; m_valueList->current(); m_valueList->next(), operatorExpected = !operatorExpected) {
- if (operatorExpected) {
- if (m_valueList->current()->unit == CSSParserValue::Operator && m_valueList->current()->iValue == ',')
- continue;
- failed = true;
- break;
- }
- if (m_valueList->current()->unit != CSSPrimitiveValue::CSS_UNICODE_RANGE) {
- failed = true;
- break;
- }
-
- String rangeString = m_valueList->current()->string;
- UChar32 from = 0;
- UChar32 to = 0;
- unsigned length = rangeString.length();
-
- if (length < 3) {
- failed = true;
- break;
- }
-
- unsigned i = 2;
- while (i < length) {
- UChar c = rangeString[i];
- if (c == '-' || c == '?')
- break;
- from *= 16;
- if (c >= '0' && c <= '9')
- from += c - '0';
- else if (c >= 'A' && c <= 'F')
- from += 10 + c - 'A';
- else if (c >= 'a' && c <= 'f')
- from += 10 + c - 'a';
- else {
- failed = true;
- break;
- }
- i++;
- }
- if (failed)
- break;
-
- if (i == length)
- to = from;
- else if (rangeString[i] == '?') {
- unsigned span = 1;
- while (i < length && rangeString[i] == '?') {
- span *= 16;
- from *= 16;
- i++;
- }
- if (i < length)
- failed = true;
- to = from + span - 1;
- } else {
- if (length < i + 2) {
- failed = true;
- break;
- }
- i++;
- while (i < length) {
- UChar c = rangeString[i];
- to *= 16;
- if (c >= '0' && c <= '9')
- to += c - '0';
- else if (c >= 'A' && c <= 'F')
- to += 10 + c - 'A';
- else if (c >= 'a' && c <= 'f')
- to += 10 + c - 'a';
- else {
- failed = true;
- break;
- }
- i++;
- }
- if (failed)
- break;
- }
- if (from <= to)
- values->append(CSSUnicodeRangeValue::create(from, to));
- }
- if (failed || !values->length())
- return false;
- addProperty(CSSPropertyUnicodeRange, values.release(), m_important);
- return true;
-}
-
-// Returns the number of characters which form a valid double
-// and are terminated by the given terminator character
-template <typename CharacterType>
-static int checkForValidDouble(const CharacterType* string, const CharacterType* end, const char terminator)
-{
- int length = end - string;
- if (length < 1)
- return 0;
-
- bool decimalMarkSeen = false;
- int processedLength = 0;
-
- for (int i = 0; i < length; ++i) {
- if (string[i] == terminator) {
- processedLength = i;
- break;
- }
- if (!isASCIIDigit(string[i])) {
- if (!decimalMarkSeen && string[i] == '.')
- decimalMarkSeen = true;
- else
- return 0;
- }
- }
-
- if (decimalMarkSeen && processedLength == 1)
- return 0;
-
- return processedLength;
-}
-
-// Returns the number of characters consumed for parsing a valid double
-// terminated by the given terminator character
-template <typename CharacterType>
-static int parseDouble(const CharacterType* string, const CharacterType* end, const char terminator, double& value)
-{
- int length = checkForValidDouble(string, end, terminator);
- if (!length)
- return 0;
-
- int position = 0;
- double localValue = 0;
-
- // The consumed characters here are guaranteed to be
- // ASCII digits with or without a decimal mark
- for (; position < length; ++position) {
- if (string[position] == '.')
- break;
- localValue = localValue * 10 + string[position] - '0';
- }
-
- if (++position == length) {
- value = localValue;
- return length;
- }
-
- double fraction = 0;
- double scale = 1;
-
- while (position < length && scale < MAX_SCALE) {
- fraction = fraction * 10 + string[position++] - '0';
- scale *= 10;
- }
-
- value = localValue + fraction / scale;
- return length;
-}
-
-template <typename CharacterType>
-static bool parseColorIntOrPercentage(const CharacterType*& string, const CharacterType* end, const char terminator, CSSPrimitiveValue::UnitTypes& expect, int& value)
-{
- const CharacterType* current = string;
- double localValue = 0;
- bool negative = false;
- while (current != end && isHTMLSpace<CharacterType>(*current))
- current++;
- if (current != end && *current == '-') {
- negative = true;
- current++;
- }
- if (current == end || !isASCIIDigit(*current))
- return false;
- while (current != end && isASCIIDigit(*current)) {
- double newValue = localValue * 10 + *current++ - '0';
- if (newValue >= 255) {
- // Clamp values at 255.
- localValue = 255;
- while (current != end && isASCIIDigit(*current))
- ++current;
- break;
- }
- localValue = newValue;
- }
-
- if (current == end)
- return false;
-
- if (expect == CSSPrimitiveValue::CSS_NUMBER && (*current == '.' || *current == '%'))
- return false;
-
- if (*current == '.') {
- // We already parsed the integral part, try to parse
- // the fraction part of the percentage value.
- double percentage = 0;
- int numCharactersParsed = parseDouble(current, end, '%', percentage);
- if (!numCharactersParsed)
- return false;
- current += numCharactersParsed;
- if (*current != '%')
- return false;
- localValue += percentage;
- }
-
- if (expect == CSSPrimitiveValue::CSS_PERCENTAGE && *current != '%')
- return false;
-
- if (*current == '%') {
- expect = CSSPrimitiveValue::CSS_PERCENTAGE;
- localValue = localValue / 100.0 * 256.0;
- // Clamp values at 255 for percentages over 100%
- if (localValue > 255)
- localValue = 255;
- current++;
- } else
- expect = CSSPrimitiveValue::CSS_NUMBER;
-
- while (current != end && isHTMLSpace<CharacterType>(*current))
- current++;
- if (current == end || *current++ != terminator)
- return false;
- // Clamp negative values at zero.
- value = negative ? 0 : static_cast<int>(localValue);
- string = current;
- return true;
-}
-
-template <typename CharacterType>
-static inline bool isTenthAlpha(const CharacterType* string, const int length)
-{
- // "0.X"
- if (length == 3 && string[0] == '0' && string[1] == '.' && isASCIIDigit(string[2]))
- return true;
-
- // ".X"
- if (length == 2 && string[0] == '.' && isASCIIDigit(string[1]))
- return true;
-
- return false;
-}
-
-template <typename CharacterType>
-static inline bool parseAlphaValue(const CharacterType*& string, const CharacterType* end, const char terminator, int& value)
-{
- while (string != end && isHTMLSpace<CharacterType>(*string))
- string++;
-
- bool negative = false;
-
- if (string != end && *string == '-') {
- negative = true;
- string++;
- }
-
- value = 0;
-
- int length = end - string;
- if (length < 2)
- return false;
-
- if (string[length - 1] != terminator || !isASCIIDigit(string[length - 2]))
- return false;
-
- if (string[0] != '0' && string[0] != '1' && string[0] != '.') {
- if (checkForValidDouble(string, end, terminator)) {
- value = negative ? 0 : 255;
- string = end;
- return true;
- }
- return false;
- }
-
- if (length == 2 && string[0] != '.') {
- value = !negative && string[0] == '1' ? 255 : 0;
- string = end;
- return true;
- }
-
- if (isTenthAlpha(string, length - 1)) {
- static const int tenthAlphaValues[] = { 0, 25, 51, 76, 102, 127, 153, 179, 204, 230 };
- value = negative ? 0 : tenthAlphaValues[string[length - 2] - '0'];
- string = end;
- return true;
- }
-
- double alpha = 0;
- if (!parseDouble(string, end, terminator, alpha))
- return false;
- value = negative ? 0 : static_cast<int>(alpha * nextafter(256.0, 0.0));
- string = end;
- return true;
-}
-
-template <typename CharacterType>
-static inline bool mightBeRGBA(const CharacterType* characters, unsigned length)
-{
- if (length < 5)
- return false;
- return characters[4] == '('
- && isASCIIAlphaCaselessEqual(characters[0], 'r')
- && isASCIIAlphaCaselessEqual(characters[1], 'g')
- && isASCIIAlphaCaselessEqual(characters[2], 'b')
- && isASCIIAlphaCaselessEqual(characters[3], 'a');
-}
-
-template <typename CharacterType>
-static inline bool mightBeRGB(const CharacterType* characters, unsigned length)
-{
- if (length < 4)
- return false;
- return characters[3] == '('
- && isASCIIAlphaCaselessEqual(characters[0], 'r')
- && isASCIIAlphaCaselessEqual(characters[1], 'g')
- && isASCIIAlphaCaselessEqual(characters[2], 'b');
-}
-
-template <typename CharacterType>
-static inline bool fastParseColorInternal(RGBA32& rgb, const CharacterType* characters, unsigned length , bool strict)
-{
- CSSPrimitiveValue::UnitTypes expect = CSSPrimitiveValue::CSS_UNKNOWN;
-
- if (!strict && length >= 3) {
- if (characters[0] == '#') {
- if (Color::parseHexColor(characters + 1, length - 1, rgb))
- return true;
- } else {
- if (Color::parseHexColor(characters, length, rgb))
- return true;
- }
- }
-
- // Try rgba() syntax.
- if (mightBeRGBA(characters, length)) {
- const CharacterType* current = characters + 5;
- const CharacterType* end = characters + length;
- int red;
- int green;
- int blue;
- int alpha;
-
- if (!parseColorIntOrPercentage(current, end, ',', expect, red))
- return false;
- if (!parseColorIntOrPercentage(current, end, ',', expect, green))
- return false;
- if (!parseColorIntOrPercentage(current, end, ',', expect, blue))
- return false;
- if (!parseAlphaValue(current, end, ')', alpha))
- return false;
- if (current != end)
- return false;
- rgb = makeRGBA(red, green, blue, alpha);
- return true;
- }
-
- // Try rgb() syntax.
- if (mightBeRGB(characters, length)) {
- const CharacterType* current = characters + 4;
- const CharacterType* end = characters + length;
- int red;
- int green;
- int blue;
- if (!parseColorIntOrPercentage(current, end, ',', expect, red))
- return false;
- if (!parseColorIntOrPercentage(current, end, ',', expect, green))
- return false;
- if (!parseColorIntOrPercentage(current, end, ')', expect, blue))
- return false;
- if (current != end)
- return false;
- rgb = makeRGB(red, green, blue);
- return true;
- }
-
- return false;
-}
-
-template<typename StringType>
-bool CSSPropertyParser::fastParseColor(RGBA32& rgb, const StringType& name, bool strict)
-{
- unsigned length = name.length();
- bool parseResult;
-
- if (!length)
- return false;
-
- if (name.is8Bit())
- parseResult = fastParseColorInternal(rgb, name.characters8(), length, strict);
- else
- parseResult = fastParseColorInternal(rgb, name.characters16(), length, strict);
-
- if (parseResult)
- return true;
-
- // Try named colors.
- Color tc;
- if (!tc.setNamedColor(name))
- return false;
- rgb = tc.rgb();
- return true;
-}
-
-inline double CSSPropertyParser::parsedDouble(CSSParserValue *v, ReleaseParsedCalcValueCondition releaseCalc)
-{
- const double result = m_parsedCalculation ? m_parsedCalculation->doubleValue() : v->fValue;
- if (releaseCalc == ReleaseParsedCalcValue)
- m_parsedCalculation.release();
- return result;
-}
-
-bool CSSPropertyParser::isCalculation(CSSParserValue* value)
-{
- return (value->unit == CSSParserValue::Function)
- && (equalIgnoringCase(value->function->name, "calc(")
- || equalIgnoringCase(value->function->name, "-webkit-calc(")
- || equalIgnoringCase(value->function->name, "-webkit-min(")
- || equalIgnoringCase(value->function->name, "-webkit-max("));
-}
-
-inline int CSSPropertyParser::colorIntFromValue(CSSParserValue* v)
-{
- bool isPercent;
-
- if (m_parsedCalculation)
- isPercent = m_parsedCalculation->category() == CalcPercent;
- else
- isPercent = v->unit == CSSPrimitiveValue::CSS_PERCENTAGE;
-
- const double value = parsedDouble(v, ReleaseParsedCalcValue);
-
- if (value <= 0.0)
- return 0;
-
- if (isPercent) {
- if (value >= 100.0)
- return 255;
- return static_cast<int>(value * 256.0 / 100.0);
- }
-
- if (value >= 255.0)
- return 255;
-
- return static_cast<int>(value);
-}
-
-bool CSSPropertyParser::parseColorParameters(CSSParserValue* value, int* colorArray, bool parseAlpha)
-{
- CSSParserValueList* args = value->function->args.get();
- CSSParserValue* v = args->current();
- Units unitType = FUnknown;
- // Get the first value and its type
- if (validUnit(v, FInteger, HTMLStandardMode))
- unitType = FInteger;
- else if (validUnit(v, FPercent, HTMLStandardMode))
- unitType = FPercent;
- else
- return false;
-
- colorArray[0] = colorIntFromValue(v);
- for (int i = 1; i < 3; i++) {
- v = args->next();
- if (v->unit != CSSParserValue::Operator && v->iValue != ',')
- return false;
- v = args->next();
- if (!validUnit(v, unitType, HTMLStandardMode))
- return false;
- colorArray[i] = colorIntFromValue(v);
- }
- if (parseAlpha) {
- v = args->next();
- if (v->unit != CSSParserValue::Operator && v->iValue != ',')
- return false;
- v = args->next();
- if (!validUnit(v, FNumber, HTMLStandardMode))
- return false;
- const double value = parsedDouble(v, ReleaseParsedCalcValue);
- // Convert the floating pointer number of alpha to an integer in the range [0, 256),
- // with an equal distribution across all 256 values.
- colorArray[3] = static_cast<int>(max(0.0, min(1.0, value)) * nextafter(256.0, 0.0));
- }
- return true;
-}
-
-// The CSS3 specification defines the format of a HSL color as
-// hsl(<number>, <percent>, <percent>)
-// and with alpha, the format is
-// hsla(<number>, <percent>, <percent>, <number>)
-// The first value, HUE, is in an angle with a value between 0 and 360
-bool CSSPropertyParser::parseHSLParameters(CSSParserValue* value, double* colorArray, bool parseAlpha)
-{
- CSSParserValueList* args = value->function->args.get();
- CSSParserValue* v = args->current();
- // Get the first value
- if (!validUnit(v, FNumber, HTMLStandardMode))
- return false;
- // normalize the Hue value and change it to be between 0 and 1.0
- colorArray[0] = (((static_cast<int>(parsedDouble(v, ReleaseParsedCalcValue)) % 360) + 360) % 360) / 360.0;
- for (int i = 1; i < 3; i++) {
- v = args->next();
- if (v->unit != CSSParserValue::Operator && v->iValue != ',')
- return false;
- v = args->next();
- if (!validUnit(v, FPercent, HTMLStandardMode))
- return false;
- colorArray[i] = max(0.0, min(100.0, parsedDouble(v, ReleaseParsedCalcValue))) / 100.0; // needs to be value between 0 and 1.0
- }
- if (parseAlpha) {
- v = args->next();
- if (v->unit != CSSParserValue::Operator && v->iValue != ',')
- return false;
- v = args->next();
- if (!validUnit(v, FNumber, HTMLStandardMode))
- return false;
- colorArray[3] = max(0.0, min(1.0, parsedDouble(v, ReleaseParsedCalcValue)));
- }
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseColor(CSSParserValue* value)
-{
- RGBA32 c = Color::transparent;
- if (!parseColorFromValue(value ? value : m_valueList->current(), c))
- return nullptr;
- return cssValuePool().createColorValue(c);
-}
-
-bool CSSPropertyParser::parseColorFromValue(CSSParserValue* value, RGBA32& c)
-{
- if (inQuirksMode() && value->unit == CSSPrimitiveValue::CSS_NUMBER
- && value->fValue >= 0. && value->fValue < 1000000.) {
- String str = String::format("%06d", static_cast<int>((value->fValue+.5)));
- // FIXME: This should be strict parsing for SVG as well.
- if (!fastParseColor(c, str, !inQuirksMode()))
- return false;
- } else if (value->unit == CSSPrimitiveValue::CSS_PARSER_HEXCOLOR ||
- value->unit == CSSPrimitiveValue::CSS_IDENT ||
- (inQuirksMode() && value->unit == CSSPrimitiveValue::CSS_DIMENSION)) {
- if (!fastParseColor(c, value->string, !inQuirksMode() && value->unit == CSSPrimitiveValue::CSS_IDENT))
- return false;
- } else if (value->unit == CSSParserValue::Function &&
- value->function->args != 0 &&
- value->function->args->size() == 5 /* rgb + two commas */ &&
- equalIgnoringCase(value->function->name, "rgb(")) {
- int colorValues[3];
- if (!parseColorParameters(value, colorValues, false))
- return false;
- c = makeRGB(colorValues[0], colorValues[1], colorValues[2]);
- } else {
- if (value->unit == CSSParserValue::Function &&
- value->function->args != 0 &&
- value->function->args->size() == 7 /* rgba + three commas */ &&
- equalIgnoringCase(value->function->name, "rgba(")) {
- int colorValues[4];
- if (!parseColorParameters(value, colorValues, true))
- return false;
- c = makeRGBA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]);
- } else if (value->unit == CSSParserValue::Function &&
- value->function->args != 0 &&
- value->function->args->size() == 5 /* hsl + two commas */ &&
- equalIgnoringCase(value->function->name, "hsl(")) {
- double colorValues[3];
- if (!parseHSLParameters(value, colorValues, false))
- return false;
- c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], 1.0);
- } else if (value->unit == CSSParserValue::Function &&
- value->function->args != 0 &&
- value->function->args->size() == 7 /* hsla + three commas */ &&
- equalIgnoringCase(value->function->name, "hsla(")) {
- double colorValues[4];
- if (!parseHSLParameters(value, colorValues, true))
- return false;
- c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]);
- } else
- return false;
- }
-
- return true;
-}
-
-// This class tracks parsing state for shadow values. If it goes out of scope (e.g., due to an early return)
-// without the allowBreak bit being set, then it will clean up all of the objects and destroy them.
-class ShadowParseContext {
- DISALLOW_ALLOCATION();
-public:
- ShadowParseContext(CSSPropertyID prop, CSSPropertyParser* parser)
- : property(prop)
- , m_parser(parser)
- , allowX(true)
- , allowY(false)
- , allowBlur(false)
- , allowSpread(false)
- , allowColor(true)
- , allowStyle(prop == CSSPropertyWebkitBoxShadow || prop == CSSPropertyBoxShadow)
- , allowBreak(true)
- {
- }
-
- bool allowLength() { return allowX || allowY || allowBlur || allowSpread; }
-
- void commitValue()
- {
- // Handle the ,, case gracefully by doing nothing.
- if (x || y || blur || spread || color || style) {
- if (!values)
- values = CSSValueList::createCommaSeparated();
-
- // Construct the current shadow value and add it to the list.
- values->append(CSSShadowValue::create(x.release(), y.release(), blur.release(), spread.release(), style.release(), color.release()));
- }
-
- // Now reset for the next shadow value.
- x = nullptr;
- y = nullptr;
- blur = nullptr;
- spread = nullptr;
- style = nullptr;
- color = nullptr;
-
- allowX = true;
- allowColor = true;
- allowBreak = true;
- allowY = false;
- allowBlur = false;
- allowSpread = false;
- allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
- }
-
- void commitLength(CSSParserValue* v)
- {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> val = m_parser->createPrimitiveNumericValue(v);
-
- if (allowX) {
- x = val.release();
- allowX = false;
- allowY = true;
- allowColor = false;
- allowStyle = false;
- allowBreak = false;
- } else if (allowY) {
- y = val.release();
- allowY = false;
- allowBlur = true;
- allowColor = true;
- allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
- allowBreak = true;
- } else if (allowBlur) {
- blur = val.release();
- allowBlur = false;
- allowSpread = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
- } else if (allowSpread) {
- spread = val.release();
- allowSpread = false;
- }
- }
-
- void commitColor(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val)
- {
- color = val;
- allowColor = false;
- if (allowX) {
- allowStyle = false;
- allowBreak = false;
- } else {
- allowBlur = false;
- allowSpread = false;
- allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow;
- }
- }
-
- void commitStyle(CSSParserValue* v)
- {
- style = cssValuePool().createIdentifierValue(v->id);
- allowStyle = false;
- if (allowX)
- allowBreak = false;
- else {
- allowBlur = false;
- allowSpread = false;
- allowColor = false;
- }
- }
-
- CSSPropertyID property;
- CSSPropertyParser* m_parser;
-
- RefPtrWillBeRawPtr<CSSValueList> values;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> x;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> y;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> blur;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> spread;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> style;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> color;
-
- bool allowX;
- bool allowY;
- bool allowBlur;
- bool allowSpread;
- bool allowColor;
- bool allowStyle; // inset or not.
- bool allowBreak;
-};
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseShadow(CSSParserValueList* valueList, CSSPropertyID propId)
-{
- ShadowParseContext context(propId, this);
- CSSParserValue* val;
- while ((val = valueList->current())) {
- // Check for a comma break first.
- if (val->unit == CSSParserValue::Operator) {
- if (val->iValue != ',' || !context.allowBreak) {
- // Other operators aren't legal or we aren't done with the current shadow
- // value. Treat as invalid.
- return nullptr;
- }
- // The value is good. Commit it.
- context.commitValue();
- } else if (validUnit(val, FLength, HTMLStandardMode)) {
- // We required a length and didn't get one. Invalid.
- if (!context.allowLength())
- return nullptr;
-
- // Blur radius must be non-negative.
- if (context.allowBlur && !validUnit(val, FLength | FNonNeg, HTMLStandardMode))
- return nullptr;
-
- // A length is allowed here. Construct the value and add it.
- context.commitLength(val);
- } else if (val->id == CSSValueInset) {
- if (!context.allowStyle)
- return nullptr;
-
- context.commitStyle(val);
- } else {
- // The only other type of value that's ok is a color value.
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedColor;
- bool isColor = ((val->id >= CSSValueAqua && val->id <= CSSValueWindowtext) || val->id == CSSValueMenu
- || (val->id >= CSSValueWebkitFocusRingColor && val->id <= CSSValueWebkitText && inQuirksMode())
- || val->id == CSSValueCurrentcolor);
- if (isColor) {
- if (!context.allowColor)
- return nullptr;
- parsedColor = cssValuePool().createIdentifierValue(val->id);
- }
-
- if (!parsedColor)
- // It's not built-in. Try to parse it as a color.
- parsedColor = parseColor(val);
-
- if (!parsedColor || !context.allowColor)
- return nullptr; // This value is not a color or length and is invalid or
- // it is a color, but a color isn't allowed at this point.
-
- context.commitColor(parsedColor.release());
- }
-
- valueList->next();
- }
-
- if (context.allowBreak) {
- context.commitValue();
- if (context.values && context.values->length())
- return context.values.release();
- }
-
- return nullptr;
-}
-
-bool CSSPropertyParser::parseReflect(CSSPropertyID propId, bool important)
-{
- // box-reflect: <direction> <offset> <mask>
-
- // Direction comes first.
- CSSParserValue* val = m_valueList->current();
- RefPtrWillBeRawPtr<CSSPrimitiveValue> direction;
- switch (val->id) {
- case CSSValueAbove:
- case CSSValueBelow:
- case CSSValueLeft:
- case CSSValueRight:
- direction = cssValuePool().createIdentifierValue(val->id);
- break;
- default:
- return false;
- }
-
- // The offset comes next.
- val = m_valueList->next();
- RefPtrWillBeRawPtr<CSSPrimitiveValue> offset;
- if (!val)
- offset = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PX);
- else {
- if (!validUnit(val, FLength | FPercent))
- return false;
- offset = createPrimitiveNumericValue(val);
- }
-
- // Now for the mask.
- RefPtrWillBeRawPtr<CSSValue> mask;
- val = m_valueList->next();
- if (val) {
- mask = parseBorderImage(propId);
- if (!mask)
- return false;
- }
-
- RefPtrWillBeRawPtr<CSSReflectValue> reflectValue = CSSReflectValue::create(direction.release(), offset.release(), mask.release());
- addProperty(propId, reflectValue.release(), important);
- m_valueList->next();
- return true;
-}
-
-bool CSSPropertyParser::parseFlex(CSSParserValueList* args, bool important)
-{
- if (!args || !args->size() || args->size() > 3)
- return false;
- static const double unsetValue = -1;
- double flexGrow = unsetValue;
- double flexShrink = unsetValue;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> flexBasis;
-
- while (CSSParserValue* arg = args->current()) {
- if (validUnit(arg, FNumber | FNonNeg)) {
- if (flexGrow == unsetValue)
- flexGrow = arg->fValue;
- else if (flexShrink == unsetValue)
- flexShrink = arg->fValue;
- else if (!arg->fValue) {
- // flex only allows a basis of 0 (sans units) if flex-grow and flex-shrink values have already been set.
- flexBasis = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PX);
- } else {
- // We only allow 3 numbers without units if the last value is 0. E.g., flex:1 1 1 is invalid.
- return false;
- }
- } else if (!flexBasis && (arg->id == CSSValueAuto || validUnit(arg, FLength | FPercent | FNonNeg)))
- flexBasis = parseValidPrimitive(arg->id, arg);
- else {
- // Not a valid arg for flex.
- return false;
- }
- args->next();
- }
-
- if (flexGrow == unsetValue)
- flexGrow = 1;
- if (flexShrink == unsetValue)
- flexShrink = 1;
- if (!flexBasis)
- flexBasis = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PX);
-
- addProperty(CSSPropertyFlexGrow, cssValuePool().createValue(clampToFloat(flexGrow), CSSPrimitiveValue::CSS_NUMBER), important);
- addProperty(CSSPropertyFlexShrink, cssValuePool().createValue(clampToFloat(flexShrink), CSSPrimitiveValue::CSS_NUMBER), important);
- addProperty(CSSPropertyFlexBasis, flexBasis, important);
- return true;
-}
-
-bool CSSPropertyParser::parseObjectPosition(bool important)
-{
- RefPtrWillBeRawPtr<CSSValue> xValue;
- RefPtrWillBeRawPtr<CSSValue> yValue;
- parseFillPosition(m_valueList.get(), xValue, yValue);
- if (!xValue || !yValue)
- return false;
- addProperty(
- CSSPropertyObjectPosition,
- createPrimitiveValuePair(toCSSPrimitiveValue(xValue.get()), toCSSPrimitiveValue(yValue.get()), Pair::KeepIdenticalValues),
- important);
- return true;
-}
-
-class BorderImageParseContext {
- DISALLOW_ALLOCATION();
-public:
- BorderImageParseContext()
- : m_canAdvance(false)
- , m_allowCommit(true)
- , m_allowImage(true)
- , m_allowImageSlice(true)
- , m_allowRepeat(true)
- , m_allowForwardSlashOperator(false)
- , m_requireWidth(false)
- , m_requireOutset(false)
- {}
-
- bool canAdvance() const { return m_canAdvance; }
- void setCanAdvance(bool canAdvance) { m_canAdvance = canAdvance; }
-
- bool allowCommit() const { return m_allowCommit; }
- bool allowImage() const { return m_allowImage; }
- bool allowImageSlice() const { return m_allowImageSlice; }
- bool allowRepeat() const { return m_allowRepeat; }
- bool allowForwardSlashOperator() const { return m_allowForwardSlashOperator; }
-
- bool requireWidth() const { return m_requireWidth; }
- bool requireOutset() const { return m_requireOutset; }
-
- void commitImage(PassRefPtrWillBeRawPtr<CSSValue> image)
- {
- m_image = image;
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowImage = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
- m_allowImageSlice = !m_imageSlice;
- m_allowRepeat = !m_repeat;
- }
- void commitImageSlice(PassRefPtrWillBeRawPtr<CSSBorderImageSliceValue> slice)
- {
- m_imageSlice = slice;
- m_canAdvance = true;
- m_allowCommit = m_allowForwardSlashOperator = true;
- m_allowImageSlice = m_requireWidth = m_requireOutset = false;
- m_allowImage = !m_image;
- m_allowRepeat = !m_repeat;
- }
- void commitForwardSlashOperator()
- {
- m_canAdvance = true;
- m_allowCommit = m_allowImage = m_allowImageSlice = m_allowRepeat = m_allowForwardSlashOperator = false;
- if (!m_borderSlice) {
- m_requireWidth = true;
- m_requireOutset = false;
- } else {
- m_requireOutset = true;
- m_requireWidth = false;
- }
- }
- void commitBorderWidth(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> slice)
- {
- m_borderSlice = slice;
- m_canAdvance = true;
- m_allowCommit = m_allowForwardSlashOperator = true;
- m_allowImageSlice = m_requireWidth = m_requireOutset = false;
- m_allowImage = !m_image;
- m_allowRepeat = !m_repeat;
- }
- void commitBorderOutset(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> outset)
- {
- m_outset = outset;
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowImageSlice = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
- m_allowImage = !m_image;
- m_allowRepeat = !m_repeat;
- }
- void commitRepeat(PassRefPtrWillBeRawPtr<CSSValue> repeat)
- {
- m_repeat = repeat;
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowRepeat = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false;
- m_allowImageSlice = !m_imageSlice;
- m_allowImage = !m_image;
- }
-
- PassRefPtrWillBeRawPtr<CSSValue> commitCSSValue()
- {
- return createBorderImageValue(m_image, m_imageSlice, m_borderSlice, m_outset, m_repeat);
- }
-
- void commitMaskBoxImage(CSSPropertyParser* parser, bool important)
- {
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageSource, parser, m_image, important);
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageSlice, parser, m_imageSlice, important);
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageWidth, parser, m_borderSlice, important);
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageOutset, parser, m_outset, important);
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageRepeat, parser, m_repeat, important);
- }
-
- void commitBorderImage(CSSPropertyParser* parser, bool important)
- {
- commitBorderImageProperty(CSSPropertyBorderImageSource, parser, m_image, important);
- commitBorderImageProperty(CSSPropertyBorderImageSlice, parser, m_imageSlice, important);
- commitBorderImageProperty(CSSPropertyBorderImageWidth, parser, m_borderSlice, important);
- commitBorderImageProperty(CSSPropertyBorderImageOutset, parser, m_outset, important);
- commitBorderImageProperty(CSSPropertyBorderImageRepeat, parser, m_repeat, important);
- }
-
- void commitBorderImageProperty(CSSPropertyID propId, CSSPropertyParser* parser, PassRefPtrWillBeRawPtr<CSSValue> value, bool important)
- {
- if (value)
- parser->addProperty(propId, value, important);
- else
- parser->addProperty(propId, cssValuePool().createImplicitInitialValue(), important, true);
- }
-
- static bool buildFromParser(CSSPropertyParser&, CSSPropertyID, BorderImageParseContext&);
-
- bool m_canAdvance;
-
- bool m_allowCommit;
- bool m_allowImage;
- bool m_allowImageSlice;
- bool m_allowRepeat;
- bool m_allowForwardSlashOperator;
-
- bool m_requireWidth;
- bool m_requireOutset;
-
- RefPtrWillBeRawPtr<CSSValue> m_image;
- RefPtrWillBeRawPtr<CSSBorderImageSliceValue> m_imageSlice;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_borderSlice;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_outset;
-
- RefPtrWillBeRawPtr<CSSValue> m_repeat;
-};
-
-bool BorderImageParseContext::buildFromParser(CSSPropertyParser& parser, CSSPropertyID propId, BorderImageParseContext& context)
-{
- CSSPropertyParser::ShorthandScope scope(&parser, propId);
- while (CSSParserValue* val = parser.m_valueList->current()) {
- context.setCanAdvance(false);
-
- if (!context.canAdvance() && context.allowForwardSlashOperator() && isForwardSlashOperator(val))
- context.commitForwardSlashOperator();
-
- if (!context.canAdvance() && context.allowImage()) {
- if (val->unit == CSSPrimitiveValue::CSS_URI) {
- context.commitImage(CSSImageValue::create(val->string, parser.m_context.completeURL(val->string)));
- } else if (isGeneratedImageValue(val)) {
- RefPtrWillBeRawPtr<CSSValue> value;
- if (parser.parseGeneratedImage(parser.m_valueList.get(), value))
- context.commitImage(value.release());
- else
- return false;
- } else if (val->unit == CSSParserValue::Function && equalIgnoringCase(val->function->name, "-webkit-image-set(")) {
- RefPtrWillBeRawPtr<CSSValue> value = parser.parseImageSet(parser.m_valueList.get());
- if (value)
- context.commitImage(value.release());
- else
- return false;
- } else if (val->id == CSSValueNone)
- context.commitImage(cssValuePool().createIdentifierValue(CSSValueNone));
- }
-
- if (!context.canAdvance() && context.allowImageSlice()) {
- RefPtrWillBeRawPtr<CSSBorderImageSliceValue> imageSlice;
- if (parser.parseBorderImageSlice(propId, imageSlice))
- context.commitImageSlice(imageSlice.release());
- }
-
- if (!context.canAdvance() && context.allowRepeat()) {
- RefPtrWillBeRawPtr<CSSValue> repeat;
- if (parser.parseBorderImageRepeat(repeat))
- context.commitRepeat(repeat.release());
- }
-
- if (!context.canAdvance() && context.requireWidth()) {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> borderSlice;
- if (parser.parseBorderImageWidth(borderSlice))
- context.commitBorderWidth(borderSlice.release());
- }
-
- if (!context.canAdvance() && context.requireOutset()) {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> borderOutset;
- if (parser.parseBorderImageOutset(borderOutset))
- context.commitBorderOutset(borderOutset.release());
- }
-
- if (!context.canAdvance())
- return false;
-
- parser.m_valueList->next();
- }
-
- return context.allowCommit();
-}
-
-bool CSSPropertyParser::parseBorderImageShorthand(CSSPropertyID propId, bool important)
-{
- BorderImageParseContext context;
- if (BorderImageParseContext::buildFromParser(*this, propId, context)) {
- switch (propId) {
- case CSSPropertyWebkitMaskBoxImage:
- context.commitMaskBoxImage(this, important);
- return true;
- case CSSPropertyBorderImage:
- context.commitBorderImage(this, important);
- return true;
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
- }
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseBorderImage(CSSPropertyID propId)
-{
- BorderImageParseContext context;
- if (BorderImageParseContext::buildFromParser(*this, propId, context)) {
- return context.commitCSSValue();
- }
- return nullptr;
-}
-
-static bool isBorderImageRepeatKeyword(int id)
-{
- return id == CSSValueStretch || id == CSSValueRepeat || id == CSSValueSpace || id == CSSValueRound;
-}
-
-bool CSSPropertyParser::parseBorderImageRepeat(RefPtrWillBeRawPtr<CSSValue>& result)
-{
- RefPtrWillBeRawPtr<CSSPrimitiveValue> firstValue;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> secondValue;
- CSSParserValue* val = m_valueList->current();
- if (!val)
- return false;
- if (isBorderImageRepeatKeyword(val->id))
- firstValue = cssValuePool().createIdentifierValue(val->id);
- else
- return false;
-
- val = m_valueList->next();
- if (val) {
- if (isBorderImageRepeatKeyword(val->id))
- secondValue = cssValuePool().createIdentifierValue(val->id);
- else if (!inShorthand()) {
- // If we're not parsing a shorthand then we are invalid.
- return false;
- } else {
- // We need to rewind the value list, so that when its advanced we'll
- // end up back at this value.
- m_valueList->previous();
- secondValue = firstValue;
- }
- } else
- secondValue = firstValue;
-
- result = createPrimitiveValuePair(firstValue, secondValue);
- return true;
-}
-
-class BorderImageSliceParseContext {
- DISALLOW_ALLOCATION();
-public:
- BorderImageSliceParseContext(CSSPropertyParser* parser)
- : m_parser(parser)
- , m_allowNumber(true)
- , m_allowFill(true)
- , m_allowFinalCommit(false)
- , m_fill(false)
- { }
-
- bool allowNumber() const { return m_allowNumber; }
- bool allowFill() const { return m_allowFill; }
- bool allowFinalCommit() const { return m_allowFinalCommit; }
- CSSPrimitiveValue* top() const { return m_top.get(); }
-
- void commitNumber(CSSParserValue* v)
- {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> val = m_parser->createPrimitiveNumericValue(v);
- if (!m_top)
- m_top = val;
- else if (!m_right)
- m_right = val;
- else if (!m_bottom)
- m_bottom = val;
- else {
- ASSERT(!m_left);
- m_left = val;
- }
-
- m_allowNumber = !m_left;
- m_allowFinalCommit = true;
- }
-
- void commitFill() { m_fill = true; m_allowFill = false; m_allowNumber = !m_top; }
-
- PassRefPtrWillBeRawPtr<CSSBorderImageSliceValue> commitBorderImageSlice()
- {
- // We need to clone and repeat values for any omissions.
- ASSERT(m_top);
- if (!m_right) {
- m_right = m_top;
- m_bottom = m_top;
- m_left = m_top;
- }
- if (!m_bottom) {
- m_bottom = m_top;
- m_left = m_right;
- }
- if (!m_left)
- m_left = m_right;
-
- // Now build a rect value to hold all four of our primitive values.
- RefPtrWillBeRawPtr<Quad> quad = Quad::create();
- quad->setTop(m_top);
- quad->setRight(m_right);
- quad->setBottom(m_bottom);
- quad->setLeft(m_left);
-
- // Make our new border image value now.
- return CSSBorderImageSliceValue::create(cssValuePool().createValue(quad.release()), m_fill);
- }
-
-private:
- CSSPropertyParser* m_parser;
-
- bool m_allowNumber;
- bool m_allowFill;
- bool m_allowFinalCommit;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_top;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_right;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_bottom;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_left;
-
- bool m_fill;
-};
-
-bool CSSPropertyParser::parseBorderImageSlice(CSSPropertyID propId, RefPtrWillBeRawPtr<CSSBorderImageSliceValue>& result)
-{
- BorderImageSliceParseContext context(this);
- CSSParserValue* val;
- while ((val = m_valueList->current())) {
- // FIXME calc() http://webkit.org/b/16662 : calc is parsed but values are not created yet.
- if (context.allowNumber() && !isCalculation(val) && validUnit(val, FInteger | FNonNeg | FPercent, HTMLStandardMode)) {
- context.commitNumber(val);
- } else if (context.allowFill() && val->id == CSSValueFill)
- context.commitFill();
- else if (!inShorthand()) {
- // If we're not parsing a shorthand then we are invalid.
- return false;
- } else {
- if (context.allowFinalCommit()) {
- // We're going to successfully parse, but we don't want to consume this token.
- m_valueList->previous();
- }
- break;
- }
- m_valueList->next();
- }
-
- if (context.allowFinalCommit()) {
- // FIXME: For backwards compatibility, -webkit-border-image, -webkit-mask-box-image and -webkit-box-reflect have to do a fill by default.
- // FIXME: What do we do with -webkit-box-reflect and -webkit-mask-box-image? Probably just have to leave them filling...
- if (propId == CSSPropertyWebkitBorderImage || propId == CSSPropertyWebkitMaskBoxImage || propId == CSSPropertyWebkitBoxReflect)
- context.commitFill();
-
- // Need to fully commit as a single value.
- result = context.commitBorderImageSlice();
- return true;
- }
-
- return false;
-}
-
-class BorderImageQuadParseContext {
-public:
- BorderImageQuadParseContext(CSSPropertyParser* parser)
- : m_parser(parser)
- , m_allowNumber(true)
- , m_allowFinalCommit(false)
- { }
-
- bool allowNumber() const { return m_allowNumber; }
- bool allowFinalCommit() const { return m_allowFinalCommit; }
- CSSPrimitiveValue* top() const { return m_top.get(); }
-
- void commitNumber(CSSParserValue* v)
- {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> val;
- if (v->id == CSSValueAuto)
- val = cssValuePool().createIdentifierValue(v->id);
- else
- val = m_parser->createPrimitiveNumericValue(v);
-
- if (!m_top)
- m_top = val;
- else if (!m_right)
- m_right = val;
- else if (!m_bottom)
- m_bottom = val;
- else {
- ASSERT(!m_left);
- m_left = val;
- }
-
- m_allowNumber = !m_left;
- m_allowFinalCommit = true;
- }
-
- void setAllowFinalCommit() { m_allowFinalCommit = true; }
- void setTop(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_top = val; }
-
- PassRefPtrWillBeRawPtr<CSSPrimitiveValue> commitBorderImageQuad()
- {
- // We need to clone and repeat values for any omissions.
- ASSERT(m_top);
- if (!m_right) {
- m_right = m_top;
- m_bottom = m_top;
- m_left = m_top;
- }
- if (!m_bottom) {
- m_bottom = m_top;
- m_left = m_right;
- }
- if (!m_left)
- m_left = m_right;
-
- // Now build a quad value to hold all four of our primitive values.
- RefPtrWillBeRawPtr<Quad> quad = Quad::create();
- quad->setTop(m_top);
- quad->setRight(m_right);
- quad->setBottom(m_bottom);
- quad->setLeft(m_left);
-
- // Make our new value now.
- return cssValuePool().createValue(quad.release());
- }
-
-private:
- CSSPropertyParser* m_parser;
-
- bool m_allowNumber;
- bool m_allowFinalCommit;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_top;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_right;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_bottom;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> m_left;
-};
-
-bool CSSPropertyParser::parseBorderImageQuad(Units validUnits, RefPtrWillBeRawPtr<CSSPrimitiveValue>& result)
-{
- BorderImageQuadParseContext context(this);
- CSSParserValue* val;
- while ((val = m_valueList->current())) {
- if (context.allowNumber() && (validUnit(val, validUnits, HTMLStandardMode) || val->id == CSSValueAuto)) {
- context.commitNumber(val);
- } else if (!inShorthand()) {
- // If we're not parsing a shorthand then we are invalid.
- return false;
- } else {
- if (context.allowFinalCommit())
- m_valueList->previous(); // The shorthand loop will advance back to this point.
- break;
- }
- m_valueList->next();
- }
-
- if (context.allowFinalCommit()) {
- // Need to fully commit as a single value.
- result = context.commitBorderImageQuad();
- return true;
- }
- return false;
-}
-
-bool CSSPropertyParser::parseBorderImageWidth(RefPtrWillBeRawPtr<CSSPrimitiveValue>& result)
-{
- return parseBorderImageQuad(FLength | FNumber | FNonNeg | FPercent, result);
-}
-
-bool CSSPropertyParser::parseBorderImageOutset(RefPtrWillBeRawPtr<CSSPrimitiveValue>& result)
-{
- return parseBorderImageQuad(FLength | FNumber | FNonNeg, result);
-}
-
-bool CSSPropertyParser::parseBorderRadius(CSSPropertyID propId, bool important)
-{
- unsigned num = m_valueList->size();
- if (num > 9)
- return false;
-
- ShorthandScope scope(this, propId);
- RefPtrWillBeRawPtr<CSSPrimitiveValue> radii[2][4];
-
- unsigned indexAfterSlash = 0;
- for (unsigned i = 0; i < num; ++i) {
- CSSParserValue* value = m_valueList->valueAt(i);
- if (value->unit == CSSParserValue::Operator) {
- if (value->iValue != '/')
- return false;
-
- if (!i || indexAfterSlash || i + 1 == num || num > i + 5)
- return false;
-
- indexAfterSlash = i + 1;
- completeBorderRadii(radii[0]);
- continue;
- }
-
- if (i - indexAfterSlash >= 4)
- return false;
-
- if (!validUnit(value, FLength | FPercent | FNonNeg))
- return false;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> radius = createPrimitiveNumericValue(value);
-
- if (!indexAfterSlash) {
- radii[0][i] = radius;
-
- // Legacy syntax: -webkit-border-radius: l1 l2; is equivalent to border-radius: l1 / l2;
- if (num == 2 && propId == CSSPropertyWebkitBorderRadius) {
- indexAfterSlash = 1;
- completeBorderRadii(radii[0]);
- }
- } else
- radii[1][i - indexAfterSlash] = radius.release();
- }
-
- if (!indexAfterSlash) {
- completeBorderRadii(radii[0]);
- for (unsigned i = 0; i < 4; ++i)
- radii[1][i] = radii[0][i];
- } else
- completeBorderRadii(radii[1]);
-
- ImplicitScope implicitScope(this, PropertyImplicit);
- addProperty(CSSPropertyBorderTopLeftRadius, createPrimitiveValuePair(radii[0][0].release(), radii[1][0].release()), important);
- addProperty(CSSPropertyBorderTopRightRadius, createPrimitiveValuePair(radii[0][1].release(), radii[1][1].release()), important);
- addProperty(CSSPropertyBorderBottomRightRadius, createPrimitiveValuePair(radii[0][2].release(), radii[1][2].release()), important);
- addProperty(CSSPropertyBorderBottomLeftRadius, createPrimitiveValuePair(radii[0][3].release(), radii[1][3].release()), important);
- return true;
-}
-
-bool CSSPropertyParser::parseAspectRatio(bool important)
-{
- unsigned num = m_valueList->size();
- if (num == 1 && m_valueList->valueAt(0)->id == CSSValueNone) {
- addProperty(CSSPropertyWebkitAspectRatio, cssValuePool().createIdentifierValue(CSSValueNone), important);
- return true;
- }
-
- if (num != 3)
- return false;
-
- CSSParserValue* lvalue = m_valueList->valueAt(0);
- CSSParserValue* op = m_valueList->valueAt(1);
- CSSParserValue* rvalue = m_valueList->valueAt(2);
-
- if (!isForwardSlashOperator(op))
- return false;
-
- if (!validUnit(lvalue, FNumber | FNonNeg) || !validUnit(rvalue, FNumber | FNonNeg))
- return false;
-
- if (!lvalue->fValue || !rvalue->fValue)
- return false;
-
- addProperty(CSSPropertyWebkitAspectRatio, CSSAspectRatioValue::create(narrowPrecisionToFloat(lvalue->fValue), narrowPrecisionToFloat(rvalue->fValue)), important);
-
- return true;
-}
-
-bool CSSPropertyParser::parseCounter(CSSPropertyID propId, int defaultValue, bool important)
-{
- enum { ID, VAL } state = ID;
-
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
- RefPtrWillBeRawPtr<CSSPrimitiveValue> counterName;
-
- while (true) {
- CSSParserValue* val = m_valueList->current();
- switch (state) {
- case ID:
- if (val && val->unit == CSSPrimitiveValue::CSS_IDENT) {
- counterName = createPrimitiveStringValue(val);
- state = VAL;
- m_valueList->next();
- continue;
- }
- break;
- case VAL: {
- int i = defaultValue;
- if (val && val->unit == CSSPrimitiveValue::CSS_NUMBER) {
- i = clampToInteger(val->fValue);
- m_valueList->next();
- }
-
- list->append(createPrimitiveValuePair(counterName.release(),
- cssValuePool().createValue(i, CSSPrimitiveValue::CSS_NUMBER)));
- state = ID;
- continue;
- }
- }
- break;
- }
-
- if (list->length() > 0) {
- addProperty(propId, list.release(), important);
- return true;
- }
-
- return false;
-}
-
-// This should go away once we drop support for -webkit-gradient
-static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parseDeprecatedGradientPoint(CSSParserValue* a, bool horizontal)
-{
- RefPtrWillBeRawPtr<CSSPrimitiveValue> result;
- if (a->unit == CSSPrimitiveValue::CSS_IDENT) {
- if ((equalIgnoringCase(a, "left") && horizontal)
- || (equalIgnoringCase(a, "top") && !horizontal))
- result = cssValuePool().createValue(0., CSSPrimitiveValue::CSS_PERCENTAGE);
- else if ((equalIgnoringCase(a, "right") && horizontal)
- || (equalIgnoringCase(a, "bottom") && !horizontal))
- result = cssValuePool().createValue(100., CSSPrimitiveValue::CSS_PERCENTAGE);
- else if (equalIgnoringCase(a, "center"))
- result = cssValuePool().createValue(50., CSSPrimitiveValue::CSS_PERCENTAGE);
- } else if (a->unit == CSSPrimitiveValue::CSS_NUMBER || a->unit == CSSPrimitiveValue::CSS_PERCENTAGE)
- result = cssValuePool().createValue(a->fValue, static_cast<CSSPrimitiveValue::UnitTypes>(a->unit));
- return result;
-}
-
-bool parseDeprecatedGradientColorStop(CSSPropertyParser* p, CSSParserValue* a, CSSGradientColorStop& stop)
-{
- if (a->unit != CSSParserValue::Function)
- return false;
-
- if (!equalIgnoringCase(a->function->name, "from(") &&
- !equalIgnoringCase(a->function->name, "to(") &&
- !equalIgnoringCase(a->function->name, "color-stop("))
- return false;
-
- CSSParserValueList* args = a->function->args.get();
- if (!args)
- return false;
-
- if (equalIgnoringCase(a->function->name, "from(")
- || equalIgnoringCase(a->function->name, "to(")) {
- // The "from" and "to" stops expect 1 argument.
- if (args->size() != 1)
- return false;
-
- if (equalIgnoringCase(a->function->name, "from("))
- stop.m_position = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_NUMBER);
- else
- stop.m_position = cssValuePool().createValue(1, CSSPrimitiveValue::CSS_NUMBER);
-
- CSSValueID id = args->current()->id;
- if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu)
- stop.m_color = cssValuePool().createIdentifierValue(id);
- else
- stop.m_color = p->parseColor(args->current());
- if (!stop.m_color)
- return false;
- }
-
- // The "color-stop" function expects 3 arguments.
- if (equalIgnoringCase(a->function->name, "color-stop(")) {
- if (args->size() != 3)
- return false;
-
- CSSParserValue* stopArg = args->current();
- if (stopArg->unit == CSSPrimitiveValue::CSS_PERCENTAGE)
- stop.m_position = cssValuePool().createValue(stopArg->fValue / 100, CSSPrimitiveValue::CSS_NUMBER);
- else if (stopArg->unit == CSSPrimitiveValue::CSS_NUMBER)
- stop.m_position = cssValuePool().createValue(stopArg->fValue, CSSPrimitiveValue::CSS_NUMBER);
- else
- return false;
-
- stopArg = args->next();
- if (stopArg->unit != CSSParserValue::Operator || stopArg->iValue != ',')
- return false;
-
- stopArg = args->next();
- CSSValueID id = stopArg->id;
- if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu)
- stop.m_color = cssValuePool().createIdentifierValue(id);
- else
- stop.m_color = p->parseColor(stopArg);
- if (!stop.m_color)
- return false;
- }
-
- return true;
-}
-
-bool CSSPropertyParser::parseDeprecatedGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient)
-{
- // Walk the arguments.
- CSSParserValueList* args = valueList->current()->function->args.get();
- if (!args || args->size() == 0)
- return false;
-
- // The first argument is the gradient type. It is an identifier.
- CSSGradientType gradientType;
- CSSParserValue* a = args->current();
- if (!a || a->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
- if (equalIgnoringCase(a, "linear"))
- gradientType = CSSDeprecatedLinearGradient;
- else if (equalIgnoringCase(a, "radial"))
- gradientType = CSSDeprecatedRadialGradient;
- else
- return false;
-
- RefPtrWillBeRawPtr<CSSGradientValue> result;
- switch (gradientType) {
- case CSSDeprecatedLinearGradient:
- result = CSSLinearGradientValue::create(NonRepeating, gradientType);
- break;
- case CSSDeprecatedRadialGradient:
- result = CSSRadialGradientValue::create(NonRepeating, gradientType);
- break;
- default:
- // The rest of the gradient types shouldn't appear here.
- ASSERT_NOT_REACHED();
- }
-
- // Comma.
- a = args->next();
- if (!isComma(a))
- return false;
-
- // Next comes the starting point for the gradient as an x y pair. There is no
- // comma between the x and the y values.
- // First X. It can be left, right, number or percent.
- a = args->next();
- if (!a)
- return false;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> point = parseDeprecatedGradientPoint(a, true);
- if (!point)
- return false;
- result->setFirstX(point.release());
-
- // First Y. It can be top, bottom, number or percent.
- a = args->next();
- if (!a)
- return false;
- point = parseDeprecatedGradientPoint(a, false);
- if (!point)
- return false;
- result->setFirstY(point.release());
-
- // Comma after the first point.
- a = args->next();
- if (!isComma(a))
- return false;
-
- // For radial gradients only, we now expect a numeric radius.
- if (gradientType == CSSDeprecatedRadialGradient) {
- a = args->next();
- if (!a || a->unit != CSSPrimitiveValue::CSS_NUMBER)
- return false;
- toCSSRadialGradientValue(result.get())->setFirstRadius(createPrimitiveNumericValue(a));
-
- // Comma after the first radius.
- a = args->next();
- if (!isComma(a))
- return false;
- }
-
- // Next is the ending point for the gradient as an x, y pair.
- // Second X. It can be left, right, number or percent.
- a = args->next();
- if (!a)
- return false;
- point = parseDeprecatedGradientPoint(a, true);
- if (!point)
- return false;
- result->setSecondX(point.release());
-
- // Second Y. It can be top, bottom, number or percent.
- a = args->next();
- if (!a)
- return false;
- point = parseDeprecatedGradientPoint(a, false);
- if (!point)
- return false;
- result->setSecondY(point.release());
-
- // For radial gradients only, we now expect the second radius.
- if (gradientType == CSSDeprecatedRadialGradient) {
- // Comma after the second point.
- a = args->next();
- if (!isComma(a))
- return false;
-
- a = args->next();
- if (!a || a->unit != CSSPrimitiveValue::CSS_NUMBER)
- return false;
- toCSSRadialGradientValue(result.get())->setSecondRadius(createPrimitiveNumericValue(a));
- }
-
- // We now will accept any number of stops (0 or more).
- a = args->next();
- while (a) {
- // Look for the comma before the next stop.
- if (!isComma(a))
- return false;
-
- // Now examine the stop itself.
- a = args->next();
- if (!a)
- return false;
-
- // The function name needs to be one of "from", "to", or "color-stop."
- CSSGradientColorStop stop;
- if (!parseDeprecatedGradientColorStop(this, a, stop))
- return false;
- result->addStop(stop);
-
- // Advance
- a = args->next();
- }
-
- gradient = result.release();
- return true;
-}
-
-static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> valueFromSideKeyword(CSSParserValue* a, bool& isHorizontal)
-{
- if (a->unit != CSSPrimitiveValue::CSS_IDENT)
- return nullptr;
-
- switch (a->id) {
- case CSSValueLeft:
- case CSSValueRight:
- isHorizontal = true;
- break;
- case CSSValueTop:
- case CSSValueBottom:
- isHorizontal = false;
- break;
- default:
- return nullptr;
- }
- return cssValuePool().createIdentifierValue(a->id);
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parseGradientColorOrKeyword(CSSPropertyParser* p, CSSParserValue* value)
-{
- CSSValueID id = value->id;
- if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu || id == CSSValueCurrentcolor)
- return cssValuePool().createIdentifierValue(id);
-
- return p->parseColor(value);
-}
-
-bool CSSPropertyParser::parseDeprecatedLinearGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
-{
- RefPtrWillBeRawPtr<CSSLinearGradientValue> result = CSSLinearGradientValue::create(repeating, CSSPrefixedLinearGradient);
-
- // Walk the arguments.
- CSSParserValueList* args = valueList->current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- CSSParserValue* a = args->current();
- if (!a)
- return false;
-
- bool expectComma = false;
- // Look for angle.
- if (validUnit(a, FAngle, HTMLStandardMode)) {
- result->setAngle(createPrimitiveNumericValue(a));
-
- args->next();
- expectComma = true;
- } else {
- // Look one or two optional keywords that indicate a side or corner.
- RefPtrWillBeRawPtr<CSSPrimitiveValue> startX, startY;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> location;
- bool isHorizontal = false;
- if ((location = valueFromSideKeyword(a, isHorizontal))) {
- if (isHorizontal)
- startX = location;
- else
- startY = location;
-
- if ((a = args->next())) {
- if ((location = valueFromSideKeyword(a, isHorizontal))) {
- if (isHorizontal) {
- if (startX)
- return false;
- startX = location;
- } else {
- if (startY)
- return false;
- startY = location;
- }
-
- args->next();
- }
- }
-
- expectComma = true;
- }
-
- if (!startX && !startY)
- startY = cssValuePool().createIdentifierValue(CSSValueTop);
-
- result->setFirstX(startX.release());
- result->setFirstY(startY.release());
- }
-
- if (!parseGradientColorStops(args, result.get(), expectComma))
- return false;
-
- if (!result->stopCount())
- return false;
-
- gradient = result.release();
- return true;
-}
-
-bool CSSPropertyParser::parseDeprecatedRadialGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
-{
- RefPtrWillBeRawPtr<CSSRadialGradientValue> result = CSSRadialGradientValue::create(repeating, CSSPrefixedRadialGradient);
-
- // Walk the arguments.
- CSSParserValueList* args = valueList->current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- CSSParserValue* a = args->current();
- if (!a)
- return false;
-
- bool expectComma = false;
-
- // Optional background-position
- RefPtrWillBeRawPtr<CSSValue> centerX;
- RefPtrWillBeRawPtr<CSSValue> centerY;
- // parse2ValuesFillPosition advances the args next pointer.
- parse2ValuesFillPosition(args, centerX, centerY);
- a = args->current();
- if (!a)
- return false;
-
- if (centerX || centerY) {
- // Comma
- if (!isComma(a))
- return false;
-
- a = args->next();
- if (!a)
- return false;
- }
-
- result->setFirstX(toCSSPrimitiveValue(centerX.get()));
- result->setSecondX(toCSSPrimitiveValue(centerX.get()));
- // CSS3 radial gradients always share the same start and end point.
- result->setFirstY(toCSSPrimitiveValue(centerY.get()));
- result->setSecondY(toCSSPrimitiveValue(centerY.get()));
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> shapeValue;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> sizeValue;
-
- // Optional shape and/or size in any order.
- for (int i = 0; i < 2; ++i) {
- if (a->unit != CSSPrimitiveValue::CSS_IDENT)
- break;
-
- bool foundValue = false;
- switch (a->id) {
- case CSSValueCircle:
- case CSSValueEllipse:
- shapeValue = cssValuePool().createIdentifierValue(a->id);
- foundValue = true;
- break;
- case CSSValueClosestSide:
- case CSSValueClosestCorner:
- case CSSValueFarthestSide:
- case CSSValueFarthestCorner:
- case CSSValueContain:
- case CSSValueCover:
- sizeValue = cssValuePool().createIdentifierValue(a->id);
- foundValue = true;
- break;
- default:
- break;
- }
-
- if (foundValue) {
- a = args->next();
- if (!a)
- return false;
-
- expectComma = true;
- }
- }
-
- result->setShape(shapeValue);
- result->setSizingBehavior(sizeValue);
-
- // Or, two lengths or percentages
- RefPtrWillBeRawPtr<CSSPrimitiveValue> horizontalSize;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> verticalSize;
-
- if (!shapeValue && !sizeValue) {
- if (validUnit(a, FLength | FPercent)) {
- horizontalSize = createPrimitiveNumericValue(a);
- a = args->next();
- if (!a)
- return false;
-
- expectComma = true;
- }
-
- if (validUnit(a, FLength | FPercent)) {
- verticalSize = createPrimitiveNumericValue(a);
-
- a = args->next();
- if (!a)
- return false;
- expectComma = true;
- }
- }
-
- // Must have neither or both.
- if (!horizontalSize != !verticalSize)
- return false;
-
- result->setEndHorizontalSize(horizontalSize);
- result->setEndVerticalSize(verticalSize);
-
- if (!parseGradientColorStops(args, result.get(), expectComma))
- return false;
-
- gradient = result.release();
- return true;
-}
-
-bool CSSPropertyParser::parseLinearGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
-{
- RefPtrWillBeRawPtr<CSSLinearGradientValue> result = CSSLinearGradientValue::create(repeating, CSSLinearGradient);
-
- CSSParserValueList* args = valueList->current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- CSSParserValue* a = args->current();
- if (!a)
- return false;
-
- bool expectComma = false;
- // Look for angle.
- if (validUnit(a, FAngle, HTMLStandardMode)) {
- result->setAngle(createPrimitiveNumericValue(a));
-
- args->next();
- expectComma = true;
- } else if (a->unit == CSSPrimitiveValue::CSS_IDENT && equalIgnoringCase(a, "to")) {
- // to [ [left | right] || [top | bottom] ]
- a = args->next();
- if (!a)
- return false;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> endX, endY;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> location;
- bool isHorizontal = false;
-
- location = valueFromSideKeyword(a, isHorizontal);
- if (!location)
- return false;
-
- if (isHorizontal)
- endX = location;
- else
- endY = location;
-
- a = args->next();
- if (!a)
- return false;
-
- location = valueFromSideKeyword(a, isHorizontal);
- if (location) {
- if (isHorizontal) {
- if (endX)
- return false;
- endX = location;
- } else {
- if (endY)
- return false;
- endY = location;
- }
-
- args->next();
- }
-
- expectComma = true;
- result->setFirstX(endX.release());
- result->setFirstY(endY.release());
- }
-
- if (!parseGradientColorStops(args, result.get(), expectComma))
- return false;
-
- if (!result->stopCount())
- return false;
-
- gradient = result.release();
- return true;
-}
-
-bool CSSPropertyParser::parseRadialGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient, CSSGradientRepeat repeating)
-{
- RefPtrWillBeRawPtr<CSSRadialGradientValue> result = CSSRadialGradientValue::create(repeating, CSSRadialGradient);
-
- CSSParserValueList* args = valueList->current()->function->args.get();
- if (!args || !args->size())
- return false;
-
- CSSParserValue* a = args->current();
- if (!a)
- return false;
-
- bool expectComma = false;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> shapeValue;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> sizeValue;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> horizontalSize;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> verticalSize;
-
- // First part of grammar, the size/shape clause:
- // [ circle || <length> ] |
- // [ ellipse || [ <length> | <percentage> ]{2} ] |
- // [ [ circle | ellipse] || <size-keyword> ]
- for (int i = 0; i < 3; ++i) {
- if (a->unit == CSSPrimitiveValue::CSS_IDENT) {
- bool badIdent = false;
- switch (a->id) {
- case CSSValueCircle:
- case CSSValueEllipse:
- if (shapeValue)
- return false;
- shapeValue = cssValuePool().createIdentifierValue(a->id);
- break;
- case CSSValueClosestSide:
- case CSSValueClosestCorner:
- case CSSValueFarthestSide:
- case CSSValueFarthestCorner:
- if (sizeValue || horizontalSize)
- return false;
- sizeValue = cssValuePool().createIdentifierValue(a->id);
- break;
- default:
- badIdent = true;
- }
-
- if (badIdent)
- break;
-
- a = args->next();
- if (!a)
- return false;
- } else if (validUnit(a, FLength | FPercent)) {
-
- if (sizeValue || horizontalSize)
- return false;
- horizontalSize = createPrimitiveNumericValue(a);
-
- a = args->next();
- if (!a)
- return false;
-
- if (validUnit(a, FLength | FPercent)) {
- verticalSize = createPrimitiveNumericValue(a);
- ++i;
- a = args->next();
- if (!a)
- return false;
- }
- } else
- break;
- }
-
- // You can specify size as a keyword or a length/percentage, not both.
- if (sizeValue && horizontalSize)
- return false;
- // Circles must have 0 or 1 lengths.
- if (shapeValue && shapeValue->getValueID() == CSSValueCircle && verticalSize)
- return false;
- // Ellipses must have 0 or 2 length/percentages.
- if (shapeValue && shapeValue->getValueID() == CSSValueEllipse && horizontalSize && !verticalSize)
- return false;
- // If there's only one size, it must be a length.
- if (!verticalSize && horizontalSize && horizontalSize->isPercentage())
- return false;
-
- result->setShape(shapeValue);
- result->setSizingBehavior(sizeValue);
- result->setEndHorizontalSize(horizontalSize);
- result->setEndVerticalSize(verticalSize);
-
- // Second part of grammar, the center-position clause:
- // at <position>
- RefPtrWillBeRawPtr<CSSValue> centerX;
- RefPtrWillBeRawPtr<CSSValue> centerY;
- if (a->unit == CSSPrimitiveValue::CSS_IDENT && equalIgnoringCase(a, "at")) {
- a = args->next();
- if (!a)
- return false;
-
- parseFillPosition(args, centerX, centerY);
- if (!(centerX && centerY))
- return false;
-
- a = args->current();
- if (!a)
- return false;
- result->setFirstX(toCSSPrimitiveValue(centerX.get()));
- result->setFirstY(toCSSPrimitiveValue(centerY.get()));
- // Right now, CSS radial gradients have the same start and end centers.
- result->setSecondX(toCSSPrimitiveValue(centerX.get()));
- result->setSecondY(toCSSPrimitiveValue(centerY.get()));
- }
-
- if (shapeValue || sizeValue || horizontalSize || centerX || centerY)
- expectComma = true;
-
- if (!parseGradientColorStops(args, result.get(), expectComma))
- return false;
-
- gradient = result.release();
- return true;
-}
-
-bool CSSPropertyParser::parseGradientColorStops(CSSParserValueList* valueList, CSSGradientValue* gradient, bool expectComma)
-{
- CSSParserValue* a = valueList->current();
-
- // Now look for color stops.
- while (a) {
- // Look for the comma before the next stop.
- if (expectComma) {
- if (!isComma(a))
- return false;
-
- a = valueList->next();
- if (!a)
- return false;
- }
-
- // <color-stop> = <color> [ <percentage> | <length> ]?
- CSSGradientColorStop stop;
- stop.m_color = parseGradientColorOrKeyword(this, a);
- if (!stop.m_color)
- return false;
-
- a = valueList->next();
- if (a) {
- if (validUnit(a, FLength | FPercent)) {
- stop.m_position = createPrimitiveNumericValue(a);
- a = valueList->next();
- }
- }
-
- gradient->addStop(stop);
- expectComma = true;
- }
-
- // Must have 2 or more stops to be valid.
- return gradient->stopCount() >= 2;
-}
-
-bool CSSPropertyParser::parseGeneratedImage(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value)
-{
- CSSParserValue* val = valueList->current();
-
- if (val->unit != CSSParserValue::Function)
- return false;
-
- if (equalIgnoringCase(val->function->name, "-webkit-gradient(")) {
- // FIXME: This should send a deprecation message.
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitGradient);
- return parseDeprecatedGradient(valueList, value);
- }
-
- if (equalIgnoringCase(val->function->name, "-webkit-linear-gradient(")) {
- // FIXME: This should send a deprecation message.
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitLinearGradient);
- return parseDeprecatedLinearGradient(valueList, value, NonRepeating);
- }
-
- if (equalIgnoringCase(val->function->name, "linear-gradient("))
- return parseLinearGradient(valueList, value, NonRepeating);
-
- if (equalIgnoringCase(val->function->name, "-webkit-repeating-linear-gradient(")) {
- // FIXME: This should send a deprecation message.
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitRepeatingLinearGradient);
- return parseDeprecatedLinearGradient(valueList, value, Repeating);
- }
-
- if (equalIgnoringCase(val->function->name, "repeating-linear-gradient("))
- return parseLinearGradient(valueList, value, Repeating);
-
- if (equalIgnoringCase(val->function->name, "-webkit-radial-gradient(")) {
- // FIXME: This should send a deprecation message.
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitRadialGradient);
- return parseDeprecatedRadialGradient(valueList, value, NonRepeating);
- }
-
- if (equalIgnoringCase(val->function->name, "radial-gradient("))
- return parseRadialGradient(valueList, value, NonRepeating);
-
- if (equalIgnoringCase(val->function->name, "-webkit-repeating-radial-gradient(")) {
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitRepeatingRadialGradient);
- return parseDeprecatedRadialGradient(valueList, value, Repeating);
- }
-
- if (equalIgnoringCase(val->function->name, "repeating-radial-gradient("))
- return parseRadialGradient(valueList, value, Repeating);
-
- if (equalIgnoringCase(val->function->name, "-webkit-canvas("))
- return parseCanvas(valueList, value);
-
- if (equalIgnoringCase(val->function->name, "-webkit-cross-fade("))
- return parseCrossfade(valueList, value);
-
- return false;
-}
-
-bool CSSPropertyParser::parseCrossfade(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& crossfade)
-{
- // Walk the arguments.
- CSSParserValueList* args = valueList->current()->function->args.get();
- if (!args || args->size() != 5)
- return false;
- CSSParserValue* a = args->current();
- RefPtrWillBeRawPtr<CSSValue> fromImageValue;
- RefPtrWillBeRawPtr<CSSValue> toImageValue;
-
- // The first argument is the "from" image. It is a fill image.
- if (!a || !parseFillImage(args, fromImageValue))
- return false;
- a = args->next();
-
- // Skip a comma
- if (!isComma(a))
- return false;
- a = args->next();
-
- // The second argument is the "to" image. It is a fill image.
- if (!a || !parseFillImage(args, toImageValue))
- return false;
- a = args->next();
-
- // Skip a comma
- if (!isComma(a))
- return false;
- a = args->next();
-
- // The third argument is the crossfade value. It is a percentage or a fractional number.
- RefPtrWillBeRawPtr<CSSPrimitiveValue> percentage;
- if (!a)
- return false;
-
- if (a->unit == CSSPrimitiveValue::CSS_PERCENTAGE)
- percentage = cssValuePool().createValue(clampTo<double>(a->fValue / 100, 0, 1), CSSPrimitiveValue::CSS_NUMBER);
- else if (a->unit == CSSPrimitiveValue::CSS_NUMBER)
- percentage = cssValuePool().createValue(clampTo<double>(a->fValue, 0, 1), CSSPrimitiveValue::CSS_NUMBER);
- else
- return false;
-
- RefPtrWillBeRawPtr<CSSCrossfadeValue> result = CSSCrossfadeValue::create(fromImageValue, toImageValue);
- result->setPercentage(percentage);
-
- crossfade = result;
-
- return true;
-}
-
-bool CSSPropertyParser::parseCanvas(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& canvas)
-{
- // Walk the arguments.
- CSSParserValueList* args = valueList->current()->function->args.get();
- if (!args || args->size() != 1)
- return false;
-
- // The first argument is the canvas name. It is an identifier.
- CSSParserValue* value = args->current();
- if (!value || value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- canvas = CSSCanvasValue::create(value->string);
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseImageSet(CSSParserValueList* valueList)
-{
- CSSParserValue* function = valueList->current();
-
- if (function->unit != CSSParserValue::Function)
- return nullptr;
-
- CSSParserValueList* functionArgs = valueList->current()->function->args.get();
- if (!functionArgs || !functionArgs->size() || !functionArgs->current())
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSImageSetValue> imageSet = CSSImageSetValue::create();
-
- CSSParserValue* arg = functionArgs->current();
- while (arg) {
- if (arg->unit != CSSPrimitiveValue::CSS_URI)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSImageValue> image = CSSImageValue::create(arg->string, completeURL(arg->string));
- imageSet->append(image);
-
- arg = functionArgs->next();
- if (!arg || arg->unit != CSSPrimitiveValue::CSS_DIMENSION)
- return nullptr;
-
- double imageScaleFactor = 0;
- const String& string = arg->string;
- unsigned length = string.length();
- if (!length)
- return nullptr;
- if (string.is8Bit()) {
- const LChar* start = string.characters8();
- parseDouble(start, start + length, 'x', imageScaleFactor);
- } else {
- const UChar* start = string.characters16();
- parseDouble(start, start + length, 'x', imageScaleFactor);
- }
- if (imageScaleFactor <= 0)
- return nullptr;
- imageSet->append(cssValuePool().createValue(imageScaleFactor, CSSPrimitiveValue::CSS_NUMBER));
-
- // If there are no more arguments, we're done.
- arg = functionArgs->next();
- if (!arg)
- break;
-
- // If there are more arguments, they should be after a comma.
- if (!isComma(arg))
- return nullptr;
-
- // Skip the comma and move on to the next argument.
- arg = functionArgs->next();
- }
-
- return imageSet.release();
-}
-
-bool CSSPropertyParser::parseWillChange(bool important)
-{
- ASSERT(RuntimeEnabledFeatures::cssWillChangeEnabled());
-
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated();
- if (m_valueList->current()->id == CSSValueAuto) {
- if (m_valueList->next())
- return false;
- }
-
- CSSParserValue* currentValue;
- bool expectComma = false;
-
- // Every comma-separated list of CSS_IDENTs is a valid will-change value,
- // unless the list includes an explicitly disallowed CSS_IDENT.
- while ((currentValue = m_valueList->current())) {
- if (expectComma) {
- if (!isComma(currentValue))
- return false;
- expectComma = false;
- m_valueList->next();
- continue;
- }
-
- if (currentValue->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
-
- if (CSSPropertyID property = cssPropertyID(currentValue->string)) {
- if (property == CSSPropertyWillChange)
- return false;
- values->append(cssValuePool().createIdentifierValue(property));
- } else {
- switch (currentValue->id) {
- case CSSValueNone:
- case CSSValueAll:
- case CSSValueAuto:
- case CSSValueDefault:
- case CSSValueInitial:
- case CSSValueInherit:
- return false;
- case CSSValueContents:
- case CSSValueScrollPosition:
- values->append(cssValuePool().createIdentifierValue(currentValue->id));
- break;
- default:
- break;
- }
- }
- expectComma = true;
- m_valueList->next();
- }
-
- addProperty(CSSPropertyWillChange, values.release(), important);
- return true;
-}
-
-class TransformOperationInfo {
-public:
- TransformOperationInfo(const CSSParserString& name)
- : m_type(CSSTransformValue::UnknownTransformOperation)
- , m_argCount(1)
- , m_allowSingleArgument(false)
- , m_unit(CSSPropertyParser::FUnknown)
- {
- const UChar* characters;
- unsigned nameLength = name.length();
-
- const unsigned longestNameLength = 12;
- UChar characterBuffer[longestNameLength];
- if (name.is8Bit()) {
- unsigned length = std::min(longestNameLength, nameLength);
- const LChar* characters8 = name.characters8();
- for (unsigned i = 0; i < length; ++i)
- characterBuffer[i] = characters8[i];
- characters = characterBuffer;
- } else
- characters = name.characters16();
-
- SWITCH(characters, nameLength) {
- CASE("skew(") {
- m_unit = CSSPropertyParser::FAngle;
- m_type = CSSTransformValue::SkewTransformOperation;
- m_allowSingleArgument = true;
- m_argCount = 3;
- }
- CASE("scale(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::ScaleTransformOperation;
- m_allowSingleArgument = true;
- m_argCount = 3;
- }
- CASE("skewx(") {
- m_unit = CSSPropertyParser::FAngle;
- m_type = CSSTransformValue::SkewXTransformOperation;
- }
- CASE("skewy(") {
- m_unit = CSSPropertyParser::FAngle;
- m_type = CSSTransformValue::SkewYTransformOperation;
- }
- CASE("matrix(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::MatrixTransformOperation;
- m_argCount = 11;
- }
- CASE("rotate(") {
- m_unit = CSSPropertyParser::FAngle;
- m_type = CSSTransformValue::RotateTransformOperation;
- }
- CASE("scalex(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::ScaleXTransformOperation;
- }
- CASE("scaley(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::ScaleYTransformOperation;
- }
- CASE("scalez(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::ScaleZTransformOperation;
- }
- CASE("scale3d(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::Scale3DTransformOperation;
- m_argCount = 5;
- }
- CASE("rotatex(") {
- m_unit = CSSPropertyParser::FAngle;
- m_type = CSSTransformValue::RotateXTransformOperation;
- }
- CASE("rotatey(") {
- m_unit = CSSPropertyParser::FAngle;
- m_type = CSSTransformValue::RotateYTransformOperation;
- }
- CASE("rotatez(") {
- m_unit = CSSPropertyParser::FAngle;
- m_type = CSSTransformValue::RotateZTransformOperation;
- }
- CASE("matrix3d(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::Matrix3DTransformOperation;
- m_argCount = 31;
- }
- CASE("rotate3d(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::Rotate3DTransformOperation;
- m_argCount = 7;
- }
- CASE("translate(") {
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- m_type = CSSTransformValue::TranslateTransformOperation;
- m_allowSingleArgument = true;
- m_argCount = 3;
- }
- CASE("translatex(") {
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- m_type = CSSTransformValue::TranslateXTransformOperation;
- }
- CASE("translatey(") {
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- m_type = CSSTransformValue::TranslateYTransformOperation;
- }
- CASE("translatez(") {
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- m_type = CSSTransformValue::TranslateZTransformOperation;
- }
- CASE("perspective(") {
- m_unit = CSSPropertyParser::FNumber;
- m_type = CSSTransformValue::PerspectiveTransformOperation;
- }
- CASE("translate3d(") {
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- m_type = CSSTransformValue::Translate3DTransformOperation;
- m_argCount = 5;
- }
- }
- }
-
- CSSTransformValue::TransformOperationType type() const { return m_type; }
- unsigned argCount() const { return m_argCount; }
- CSSPropertyParser::Units unit() const { return m_unit; }
-
- bool unknown() const { return m_type == CSSTransformValue::UnknownTransformOperation; }
- bool hasCorrectArgCount(unsigned argCount) { return m_argCount == argCount || (m_allowSingleArgument && argCount == 1); }
-
-private:
- CSSTransformValue::TransformOperationType m_type;
- unsigned m_argCount;
- bool m_allowSingleArgument;
- CSSPropertyParser::Units m_unit;
-};
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseTransform()
-{
- if (!m_valueList)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- RefPtrWillBeRawPtr<CSSValue> parsedTransformValue = parseTransformValue(value);
- if (!parsedTransformValue)
- return nullptr;
-
- list->append(parsedTransformValue.release());
- }
-
- return list.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTransformValue(CSSParserValue *value)
-{
- if (value->unit != CSSParserValue::Function || !value->function)
- return nullptr;
-
- // Every primitive requires at least one argument.
- CSSParserValueList* args = value->function->args.get();
- if (!args)
- return nullptr;
-
- // See if the specified primitive is one we understand.
- TransformOperationInfo info(value->function->name);
- if (info.unknown())
- return nullptr;
-
- if (!info.hasCorrectArgCount(args->size()))
- return nullptr;
-
- // The transform is a list of functional primitives that specify transform operations.
- // We collect a list of CSSTransformValues, where each value specifies a single operation.
-
- // Create the new CSSTransformValue for this operation and add it to our list.
- RefPtrWillBeRawPtr<CSSTransformValue> transformValue = CSSTransformValue::create(info.type());
-
- // Snag our values.
- CSSParserValue* a = args->current();
- unsigned argNumber = 0;
- while (a) {
- CSSPropertyParser::Units unit = info.unit();
-
- if (info.type() == CSSTransformValue::Rotate3DTransformOperation && argNumber == 3) {
- // 4th param of rotate3d() is an angle rather than a bare number, validate it as such
- if (!validUnit(a, FAngle, HTMLStandardMode))
- return nullptr;
- } else if (info.type() == CSSTransformValue::Translate3DTransformOperation && argNumber == 2) {
- // 3rd param of translate3d() cannot be a percentage
- if (!validUnit(a, FLength, HTMLStandardMode))
- return nullptr;
- } else if (info.type() == CSSTransformValue::TranslateZTransformOperation && !argNumber) {
- // 1st param of translateZ() cannot be a percentage
- if (!validUnit(a, FLength, HTMLStandardMode))
- return nullptr;
- } else if (info.type() == CSSTransformValue::PerspectiveTransformOperation && !argNumber) {
- // 1st param of perspective() must be a non-negative number (deprecated) or length.
- if (!validUnit(a, FNumber | FLength | FNonNeg, HTMLStandardMode))
- return nullptr;
- } else if (!validUnit(a, unit, HTMLStandardMode)) {
- return nullptr;
- }
-
- // Add the value to the current transform operation.
- transformValue->append(createPrimitiveNumericValue(a));
-
- a = args->next();
- if (!a)
- break;
- if (a->unit != CSSParserValue::Operator || a->iValue != ',')
- return nullptr;
- a = args->next();
-
- argNumber++;
- }
-
- return transformValue.release();
-}
-
-bool CSSPropertyParser::isBlendMode(CSSValueID valueID)
-{
- return (valueID >= CSSValueMultiply && valueID <= CSSValueLuminosity)
- || valueID == CSSValueNormal
- || valueID == CSSValueOverlay;
-}
-
-bool CSSPropertyParser::isCompositeOperator(CSSValueID valueID)
-{
- // FIXME: Add CSSValueDestination and CSSValueLighter when the Compositing spec updates.
- return valueID >= CSSValueClear && valueID <= CSSValueXor;
-}
-
-static void filterInfoForName(const CSSParserString& name, CSSFilterValue::FilterOperationType& filterType, unsigned& maximumArgumentCount)
-{
- if (equalIgnoringCase(name, "grayscale("))
- filterType = CSSFilterValue::GrayscaleFilterOperation;
- else if (equalIgnoringCase(name, "sepia("))
- filterType = CSSFilterValue::SepiaFilterOperation;
- else if (equalIgnoringCase(name, "saturate("))
- filterType = CSSFilterValue::SaturateFilterOperation;
- else if (equalIgnoringCase(name, "hue-rotate("))
- filterType = CSSFilterValue::HueRotateFilterOperation;
- else if (equalIgnoringCase(name, "invert("))
- filterType = CSSFilterValue::InvertFilterOperation;
- else if (equalIgnoringCase(name, "opacity("))
- filterType = CSSFilterValue::OpacityFilterOperation;
- else if (equalIgnoringCase(name, "brightness("))
- filterType = CSSFilterValue::BrightnessFilterOperation;
- else if (equalIgnoringCase(name, "contrast("))
- filterType = CSSFilterValue::ContrastFilterOperation;
- else if (equalIgnoringCase(name, "blur("))
- filterType = CSSFilterValue::BlurFilterOperation;
- else if (equalIgnoringCase(name, "drop-shadow(")) {
- filterType = CSSFilterValue::DropShadowFilterOperation;
- maximumArgumentCount = 4; // x-offset, y-offset, blur-radius, color -- spread and inset style not allowed.
- }
-}
-
-PassRefPtrWillBeRawPtr<CSSFilterValue> CSSPropertyParser::parseBuiltinFilterArguments(CSSParserValueList* args, CSSFilterValue::FilterOperationType filterType)
-{
- RefPtrWillBeRawPtr<CSSFilterValue> filterValue = CSSFilterValue::create(filterType);
- ASSERT(args);
-
- switch (filterType) {
- case CSSFilterValue::GrayscaleFilterOperation:
- case CSSFilterValue::SepiaFilterOperation:
- case CSSFilterValue::SaturateFilterOperation:
- case CSSFilterValue::InvertFilterOperation:
- case CSSFilterValue::OpacityFilterOperation:
- case CSSFilterValue::ContrastFilterOperation: {
- // One optional argument, 0-1 or 0%-100%, if missing use 100%.
- if (args->size() > 1)
- return nullptr;
-
- if (args->size()) {
- CSSParserValue* value = args->current();
- if (!validUnit(value, FNumber | FPercent | FNonNeg, HTMLStandardMode))
- return nullptr;
-
- double amount = value->fValue;
-
- // Saturate and Contrast allow values over 100%.
- if (filterType != CSSFilterValue::SaturateFilterOperation
- && filterType != CSSFilterValue::ContrastFilterOperation) {
- double maxAllowed = value->unit == CSSPrimitiveValue::CSS_PERCENTAGE ? 100.0 : 1.0;
- if (amount > maxAllowed)
- return nullptr;
- }
-
- filterValue->append(cssValuePool().createValue(amount, static_cast<CSSPrimitiveValue::UnitTypes>(value->unit)));
- }
- break;
- }
- case CSSFilterValue::BrightnessFilterOperation: {
- // One optional argument, if missing use 100%.
- if (args->size() > 1)
- return nullptr;
-
- if (args->size()) {
- CSSParserValue* value = args->current();
- if (!validUnit(value, FNumber | FPercent, HTMLStandardMode))
- return nullptr;
-
- filterValue->append(cssValuePool().createValue(value->fValue, static_cast<CSSPrimitiveValue::UnitTypes>(value->unit)));
- }
- break;
- }
- case CSSFilterValue::HueRotateFilterOperation: {
- // hue-rotate() takes one optional angle.
- if (args->size() > 1)
- return nullptr;
-
- if (args->size()) {
- CSSParserValue* argument = args->current();
- if (!validUnit(argument, FAngle, HTMLStandardMode))
- return nullptr;
-
- filterValue->append(createPrimitiveNumericValue(argument));
- }
- break;
- }
- case CSSFilterValue::BlurFilterOperation: {
- // Blur takes a single length. Zero parameters are allowed.
- if (args->size() > 1)
- return nullptr;
-
- if (args->size()) {
- CSSParserValue* argument = args->current();
- if (!validUnit(argument, FLength | FNonNeg, HTMLStandardMode))
- return nullptr;
-
- filterValue->append(createPrimitiveNumericValue(argument));
- }
- break;
- }
- case CSSFilterValue::DropShadowFilterOperation: {
- // drop-shadow() takes a single shadow.
- RefPtrWillBeRawPtr<CSSValueList> shadowValueList = parseShadow(args, CSSPropertyWebkitFilter);
- if (!shadowValueList || shadowValueList->length() != 1)
- return nullptr;
-
- filterValue->append((shadowValueList.release())->itemWithoutBoundsCheck(0));
- break;
- }
- default:
- ASSERT_NOT_REACHED();
- }
- return filterValue.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseFilter()
-{
- if (!m_valueList)
- return nullptr;
-
- // The filter is a list of functional primitives that specify individual operations.
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit != CSSPrimitiveValue::CSS_URI && (value->unit != CSSParserValue::Function || !value->function))
- return nullptr;
-
- CSSFilterValue::FilterOperationType filterType = CSSFilterValue::UnknownFilterOperation;
-
- // See if the specified primitive is one we understand.
- if (value->unit == CSSPrimitiveValue::CSS_URI) {
- RefPtrWillBeRawPtr<CSSFilterValue> referenceFilterValue = CSSFilterValue::create(CSSFilterValue::ReferenceFilterOperation);
- list->append(referenceFilterValue);
- referenceFilterValue->append(CSSSVGDocumentValue::create(value->string));
- } else {
- const CSSParserString name = value->function->name;
- unsigned maximumArgumentCount = 1;
-
- filterInfoForName(name, filterType, maximumArgumentCount);
-
- if (filterType == CSSFilterValue::UnknownFilterOperation)
- return nullptr;
-
- CSSParserValueList* args = value->function->args.get();
- if (!args)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSFilterValue> filterValue = parseBuiltinFilterArguments(args, filterType);
- if (!filterValue)
- return nullptr;
-
- list->append(filterValue);
- }
- }
-
- return list.release();
-}
-
-bool CSSPropertyParser::parseTransformOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, CSSPropertyID& propId3, RefPtrWillBeRawPtr<CSSValue>& value, RefPtrWillBeRawPtr<CSSValue>& value2, RefPtrWillBeRawPtr<CSSValue>& value3)
-{
- propId1 = propId;
- propId2 = propId;
- propId3 = propId;
- if (propId == CSSPropertyWebkitTransformOrigin) {
- propId1 = CSSPropertyWebkitTransformOriginX;
- propId2 = CSSPropertyWebkitTransformOriginY;
- propId3 = CSSPropertyWebkitTransformOriginZ;
- }
-
- switch (propId) {
- case CSSPropertyWebkitTransformOrigin:
- if (!parseTransformOriginShorthand(value, value2, value3))
- return false;
- // parseTransformOriginShorthand advances the m_valueList pointer
- break;
- case CSSPropertyWebkitTransformOriginX: {
- value = parseFillPositionX(m_valueList.get());
- if (value)
- m_valueList->next();
- break;
- }
- case CSSPropertyWebkitTransformOriginY: {
- value = parseFillPositionY(m_valueList.get());
- if (value)
- m_valueList->next();
- break;
- }
- case CSSPropertyWebkitTransformOriginZ: {
- if (validUnit(m_valueList->current(), FLength))
- value = createPrimitiveNumericValue(m_valueList->current());
- if (value)
- m_valueList->next();
- break;
- }
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
-
- return value;
-}
-
-bool CSSPropertyParser::parsePerspectiveOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, RefPtrWillBeRawPtr<CSSValue>& value, RefPtrWillBeRawPtr<CSSValue>& value2)
-{
- propId1 = propId;
- propId2 = propId;
- if (propId == CSSPropertyWebkitPerspectiveOrigin) {
- propId1 = CSSPropertyWebkitPerspectiveOriginX;
- propId2 = CSSPropertyWebkitPerspectiveOriginY;
- }
-
- switch (propId) {
- case CSSPropertyWebkitPerspectiveOrigin:
- if (m_valueList->size() > 2)
- return false;
- parse2ValuesFillPosition(m_valueList.get(), value, value2);
- break;
- case CSSPropertyWebkitPerspectiveOriginX: {
- value = parseFillPositionX(m_valueList.get());
- if (value)
- m_valueList->next();
- break;
- }
- case CSSPropertyWebkitPerspectiveOriginY: {
- value = parseFillPositionY(m_valueList.get());
- if (value)
- m_valueList->next();
- break;
- }
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
-
- return value;
-}
-
-bool CSSPropertyParser::parseTouchAction(bool important)
-{
- if (!RuntimeEnabledFeatures::cssTouchActionEnabled())
- return false;
-
- CSSParserValue* value = m_valueList->current();
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- if (m_valueList->size() == 1 && value && (value->id == CSSValueAuto || value->id == CSSValueNone)) {
- list->append(cssValuePool().createIdentifierValue(value->id));
- addProperty(CSSPropertyTouchAction, list.release(), important);
- m_valueList->next();
- return true;
- }
-
- bool isValid = true;
- while (isValid && value) {
- switch (value->id) {
- case CSSValuePanX:
- case CSSValuePanY: {
- RefPtrWillBeRawPtr<CSSValue> panValue = cssValuePool().createIdentifierValue(value->id);
- if (list->hasValue(panValue.get())) {
- isValid = false;
- break;
- }
- list->append(panValue.release());
- break;
- }
- default:
- isValid = false;
- break;
- }
- if (isValid)
- value = m_valueList->next();
- }
-
- if (list->length() && isValid) {
- addProperty(CSSPropertyTouchAction, list.release(), important);
- return true;
- }
-
- return false;
-}
-
-void CSSPropertyParser::addTextDecorationProperty(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> value, bool important)
-{
- // The text-decoration-line property takes priority over text-decoration, unless the latter has important priority set.
- if (propId == CSSPropertyTextDecoration && !important && !inShorthand()) {
- for (unsigned i = 0; i < m_parsedProperties.size(); ++i) {
- if (m_parsedProperties[i].id() == CSSPropertyTextDecorationLine)
- return;
- }
- }
- addProperty(propId, value, important);
-}
-
-bool CSSPropertyParser::parseTextDecoration(CSSPropertyID propId, bool important)
-{
- if (propId == CSSPropertyTextDecorationLine
- && !RuntimeEnabledFeatures::css3TextDecorationsEnabled())
- return false;
-
- CSSParserValue* value = m_valueList->current();
- if (value && value->id == CSSValueNone) {
- addTextDecorationProperty(propId, cssValuePool().createIdentifierValue(CSSValueNone), important);
- m_valueList->next();
- return true;
- }
-
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- bool isValid = true;
- while (isValid && value) {
- switch (value->id) {
- case CSSValueUnderline:
- case CSSValueOverline:
- case CSSValueLineThrough:
- case CSSValueBlink:
- list->append(cssValuePool().createIdentifierValue(value->id));
- break;
- default:
- isValid = false;
- break;
- }
- if (isValid)
- value = m_valueList->next();
- }
-
- // Values are either valid or in shorthand scope.
- if (list->length() && (isValid || inShorthand())) {
- addTextDecorationProperty(propId, list.release(), important);
- return true;
- }
-
- return false;
-}
-
-bool CSSPropertyParser::parseTextUnderlinePosition(bool important)
-{
- // The text-underline-position property has syntax "auto | [ under || [ left | right ] ]".
- // However, values 'left' and 'right' are not implemented yet, so we will parse syntax
- // "auto | under" for now.
- CSSParserValue* value = m_valueList->current();
- switch (value->id) {
- case CSSValueAuto:
- case CSSValueUnder:
- if (m_valueList->next())
- return false;
- addProperty(CSSPropertyTextUnderlinePosition, cssValuePool().createIdentifierValue(value->id), important);
- return true;
- default:
- return false;
- }
-}
-
-bool CSSPropertyParser::parseTextEmphasisStyle(bool important)
-{
- unsigned valueListSize = m_valueList->size();
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> fill;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> shape;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit == CSSPrimitiveValue::CSS_STRING) {
- if (fill || shape || (valueListSize != 1 && !inShorthand()))
- return false;
- addProperty(CSSPropertyWebkitTextEmphasisStyle, createPrimitiveStringValue(value), important);
- m_valueList->next();
- return true;
- }
-
- if (value->id == CSSValueNone) {
- if (fill || shape || (valueListSize != 1 && !inShorthand()))
- return false;
- addProperty(CSSPropertyWebkitTextEmphasisStyle, cssValuePool().createIdentifierValue(CSSValueNone), important);
- m_valueList->next();
- return true;
- }
-
- if (value->id == CSSValueOpen || value->id == CSSValueFilled) {
- if (fill)
- return false;
- fill = cssValuePool().createIdentifierValue(value->id);
- } else if (value->id == CSSValueDot || value->id == CSSValueCircle || value->id == CSSValueDoubleCircle || value->id == CSSValueTriangle || value->id == CSSValueSesame) {
- if (shape)
- return false;
- shape = cssValuePool().createIdentifierValue(value->id);
- } else if (!inShorthand())
- return false;
- else
- break;
- }
-
- if (fill && shape) {
- RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated();
- parsedValues->append(fill.release());
- parsedValues->append(shape.release());
- addProperty(CSSPropertyWebkitTextEmphasisStyle, parsedValues.release(), important);
- return true;
- }
- if (fill) {
- addProperty(CSSPropertyWebkitTextEmphasisStyle, fill.release(), important);
- return true;
- }
- if (shape) {
- addProperty(CSSPropertyWebkitTextEmphasisStyle, shape.release(), important);
- return true;
- }
-
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTextIndent()
-{
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
-
- // <length> | <percentage> | inherit
- if (m_valueList->size() == 1) {
- CSSParserValue* value = m_valueList->current();
- if (!value->id && validUnit(value, FLength | FPercent)) {
- list->append(createPrimitiveNumericValue(value));
- m_valueList->next();
- return list.release();
- }
- }
-
- if (!RuntimeEnabledFeatures::css3TextEnabled())
- return nullptr;
-
- // The case where text-indent has only <length>(or <percentage>) value
- // is handled above if statement even though css3TextEnabled() returns true.
-
- // [ [ <length> | <percentage> ] && each-line ] | inherit
- if (m_valueList->size() != 2)
+ if (!info.hasCorrectArgCount(args->size()))
return nullptr;
- CSSParserValue* firstValue = m_valueList->current();
- CSSParserValue* secondValue = m_valueList->next();
- CSSParserValue* lengthOrPercentageValue = 0;
-
- // [ <length> | <percentage> ] each-line
- if (validUnit(firstValue, FLength | FPercent) && secondValue->id == CSSValueEachLine)
- lengthOrPercentageValue = firstValue;
- // each-line [ <length> | <percentage> ]
- else if (firstValue->id == CSSValueEachLine && validUnit(secondValue, FLength | FPercent))
- lengthOrPercentageValue = secondValue;
-
- if (lengthOrPercentageValue) {
- list->append(createPrimitiveNumericValue(lengthOrPercentageValue));
- list->append(cssValuePool().createIdentifierValue(CSSValueEachLine));
- m_valueList->next();
- return list.release();
- }
-
- return nullptr;
-}
-
-bool CSSPropertyParser::parseLineBoxContain(bool important)
-{
- LineBoxContain lineBoxContain = LineBoxContainNone;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->id == CSSValueBlock) {
- if (lineBoxContain & LineBoxContainBlock)
- return false;
- lineBoxContain |= LineBoxContainBlock;
- } else if (value->id == CSSValueInline) {
- if (lineBoxContain & LineBoxContainInline)
- return false;
- lineBoxContain |= LineBoxContainInline;
- } else if (value->id == CSSValueFont) {
- if (lineBoxContain & LineBoxContainFont)
- return false;
- lineBoxContain |= LineBoxContainFont;
- } else if (value->id == CSSValueGlyphs) {
- if (lineBoxContain & LineBoxContainGlyphs)
- return false;
- lineBoxContain |= LineBoxContainGlyphs;
- } else if (value->id == CSSValueReplaced) {
- if (lineBoxContain & LineBoxContainReplaced)
- return false;
- lineBoxContain |= LineBoxContainReplaced;
- } else if (value->id == CSSValueInlineBox) {
- if (lineBoxContain & LineBoxContainInlineBox)
- return false;
- lineBoxContain |= LineBoxContainInlineBox;
- } else
- return false;
- }
-
- if (!lineBoxContain)
- return false;
-
- addProperty(CSSPropertyWebkitLineBoxContain, CSSLineBoxContainValue::create(lineBoxContain), important);
- return true;
-}
+ // The transform is a list of functional primitives that specify transform operations.
+ // We collect a list of CSSTransformValues, where each value specifies a single operation.
-bool CSSPropertyParser::parseFontFeatureTag(CSSValueList* settings)
-{
- // Feature tag name consists of 4-letter characters.
- static const unsigned tagNameLength = 4;
+ // Create the new CSSTransformValue for this operation and add it to our list.
+ RefPtrWillBeRawPtr<CSSTransformValue> transformValue = CSSTransformValue::create(info.type());
- CSSParserValue* value = m_valueList->current();
- // Feature tag name comes first
- if (value->unit != CSSPrimitiveValue::CSS_STRING)
- return false;
- if (value->string.length() != tagNameLength)
- return false;
- for (unsigned i = 0; i < tagNameLength; ++i) {
- // Limits the range of characters to 0x20-0x7E, following the tag name rules defiend in the OpenType specification.
- UChar character = value->string[i];
- if (character < 0x20 || character > 0x7E)
- return false;
- }
+ // Snag our values.
+ CSSParserValue* a = args->current();
+ unsigned argNumber = 0;
+ while (a) {
+ CSSPropertyParser::Units unit = info.unit();
- AtomicString tag = value->string;
- int tagValue = 1;
- // Feature tag values could follow: <integer> | on | off
- value = m_valueList->next();
- if (value) {
- if (value->unit == CSSPrimitiveValue::CSS_NUMBER && value->isInt && value->fValue >= 0) {
- tagValue = clampToInteger(value->fValue);
- if (tagValue < 0)
- return false;
- m_valueList->next();
- } else if (value->id == CSSValueOn || value->id == CSSValueOff) {
- tagValue = value->id == CSSValueOn;
- m_valueList->next();
+ if (info.type() == CSSTransformValue::Rotate3DTransformOperation && argNumber == 3) {
+ // 4th param of rotate3d() is an angle rather than a bare number, validate it as such
+ if (!validUnit(a, FAngle, HTMLStandardMode))
+ return nullptr;
+ } else if (info.type() == CSSTransformValue::Translate3DTransformOperation && argNumber == 2) {
+ // 3rd param of translate3d() cannot be a percentage
+ if (!validUnit(a, FLength, HTMLStandardMode))
+ return nullptr;
+ } else if (info.type() == CSSTransformValue::TranslateZTransformOperation && !argNumber) {
+ // 1st param of translateZ() cannot be a percentage
+ if (!validUnit(a, FLength, HTMLStandardMode))
+ return nullptr;
+ } else if (info.type() == CSSTransformValue::PerspectiveTransformOperation && !argNumber) {
+ // 1st param of perspective() must be a non-negative number (deprecated) or length.
+ if (!validUnit(a, FNumber | FLength | FNonNeg, HTMLStandardMode))
+ return nullptr;
+ } else if (!validUnit(a, unit, HTMLStandardMode)) {
+ return nullptr;
}
- }
- settings->append(CSSFontFeatureValue::create(tag, tagValue));
- return true;
-}
-
-bool CSSPropertyParser::parseFontFeatureSettings(bool important)
-{
- if (m_valueList->size() == 1 && m_valueList->current()->id == CSSValueNormal) {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> normalValue = cssValuePool().createIdentifierValue(CSSValueNormal);
- m_valueList->next();
- addProperty(CSSPropertyWebkitFontFeatureSettings, normalValue.release(), important);
- return true;
- }
-
- RefPtrWillBeRawPtr<CSSValueList> settings = CSSValueList::createCommaSeparated();
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (!parseFontFeatureTag(settings.get()))
- return false;
-
- // If the list isn't parsed fully, the current value should be comma.
- value = m_valueList->current();
- if (value && !isComma(value))
- return false;
- }
- if (settings->length()) {
- addProperty(CSSPropertyWebkitFontFeatureSettings, settings.release(), important);
- return true;
- }
- return false;
-}
-
-bool CSSPropertyParser::parseFontVariantLigatures(bool important)
-{
- RefPtrWillBeRawPtr<CSSValueList> ligatureValues = CSSValueList::createSpaceSeparated();
- bool sawCommonLigaturesValue = false;
- bool sawDiscretionaryLigaturesValue = false;
- bool sawHistoricalLigaturesValue = false;
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit != CSSPrimitiveValue::CSS_IDENT)
- return false;
+ // Add the value to the current transform operation.
+ transformValue->append(createPrimitiveNumericValue(a));
- switch (value->id) {
- case CSSValueNoCommonLigatures:
- case CSSValueCommonLigatures:
- if (sawCommonLigaturesValue)
- return false;
- sawCommonLigaturesValue = true;
- ligatureValues->append(cssValuePool().createIdentifierValue(value->id));
- break;
- case CSSValueNoDiscretionaryLigatures:
- case CSSValueDiscretionaryLigatures:
- if (sawDiscretionaryLigaturesValue)
- return false;
- sawDiscretionaryLigaturesValue = true;
- ligatureValues->append(cssValuePool().createIdentifierValue(value->id));
- break;
- case CSSValueNoHistoricalLigatures:
- case CSSValueHistoricalLigatures:
- if (sawHistoricalLigaturesValue)
- return false;
- sawHistoricalLigaturesValue = true;
- ligatureValues->append(cssValuePool().createIdentifierValue(value->id));
+ a = args->next();
+ if (!a)
break;
- default:
- return false;
- }
- }
-
- if (!ligatureValues->length())
- return false;
-
- addProperty(CSSPropertyFontVariantLigatures, ligatureValues.release(), important);
- return true;
-}
-
-bool CSSPropertyParser::parseCalculation(CSSParserValue* value, ValueRange range)
-{
- ASSERT(isCalculation(value));
-
- CSSParserValueList* args = value->function->args.get();
- if (!args || !args->size())
- return false;
-
- ASSERT(!m_parsedCalculation);
- m_parsedCalculation = CSSCalcValue::create(value->function->name, args, range);
+ if (a->unit != CSSParserValue::Operator || a->iValue != ',')
+ return nullptr;
+ a = args->next();
- if (!m_parsedCalculation)
- return false;
+ argNumber++;
+ }
- return true;
+ return transformValue.release();
}
void BisonCSSParser::ensureLineEndings()
@@ -10007,165 +2225,4 @@ StyleRuleBase* BisonCSSParser::createViewportRule()
return result;
}
-bool CSSPropertyParser::parseViewportProperty(CSSPropertyID propId, bool important)
-{
- ASSERT(RuntimeEnabledFeatures::cssViewportEnabled() || isUASheetBehavior(m_context.mode()));
-
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return false;
-
- CSSValueID id = value->id;
- bool validPrimitive = false;
-
- switch (propId) {
- case CSSPropertyMinWidth: // auto | extend-to-zoom | <length> | <percentage>
- case CSSPropertyMaxWidth:
- case CSSPropertyMinHeight:
- case CSSPropertyMaxHeight:
- if (id == CSSValueAuto || id == CSSValueInternalExtendToZoom)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FLength | FPercent | FNonNeg));
- break;
- case CSSPropertyWidth: // shorthand
- return parseViewportShorthand(propId, CSSPropertyMinWidth, CSSPropertyMaxWidth, important);
- case CSSPropertyHeight:
- return parseViewportShorthand(propId, CSSPropertyMinHeight, CSSPropertyMaxHeight, important);
- case CSSPropertyMinZoom: // auto | <number> | <percentage>
- case CSSPropertyMaxZoom:
- case CSSPropertyZoom:
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = (!id && validUnit(value, FNumber | FPercent | FNonNeg));
- break;
- case CSSPropertyUserZoom: // zoom | fixed
- if (id == CSSValueZoom || id == CSSValueFixed)
- validPrimitive = true;
- break;
- case CSSPropertyOrientation: // auto | portrait | landscape
- if (id == CSSValueAuto || id == CSSValuePortrait || id == CSSValueLandscape)
- validPrimitive = true;
- default:
- break;
- }
-
- RefPtrWillBeRawPtr<CSSValue> parsedValue;
- if (validPrimitive) {
- parsedValue = parseValidPrimitive(id, value);
- m_valueList->next();
- }
-
- if (parsedValue) {
- if (!m_valueList->current() || inShorthand()) {
- addProperty(propId, parsedValue.release(), important);
- return true;
- }
- }
-
- return false;
-}
-
-bool CSSPropertyParser::parseViewportShorthand(CSSPropertyID propId, CSSPropertyID first, CSSPropertyID second, bool important)
-{
- ASSERT(RuntimeEnabledFeatures::cssViewportEnabled() || isUASheetBehavior(m_context.mode()));
- unsigned numValues = m_valueList->size();
-
- if (numValues > 2)
- return false;
-
- ShorthandScope scope(this, propId);
-
- if (!parseViewportProperty(first, important))
- return false;
-
- // If just one value is supplied, the second value
- // is implicitly initialized with the first value.
- if (numValues == 1)
- m_valueList->previous();
-
- return parseViewportProperty(second, important);
-}
-
-template <typename CharacterType>
-static CSSPropertyID cssPropertyID(const CharacterType* propertyName, unsigned length)
-{
- char buffer[maxCSSPropertyNameLength + 1]; // 1 for null character
-
- for (unsigned i = 0; i != length; ++i) {
- CharacterType c = propertyName[i];
- if (c == 0 || c >= 0x7F)
- return CSSPropertyInvalid; // illegal character
- buffer[i] = toASCIILower(c);
- }
- buffer[length] = '\0';
-
- const char* name = buffer;
- const Property* hashTableEntry = findProperty(name, length);
- return hashTableEntry ? static_cast<CSSPropertyID>(hashTableEntry->id) : CSSPropertyInvalid;
-}
-
-CSSPropertyID cssPropertyID(const String& string)
-{
- unsigned length = string.length();
-
- if (!length)
- return CSSPropertyInvalid;
- if (length > maxCSSPropertyNameLength)
- return CSSPropertyInvalid;
-
- return string.is8Bit() ? cssPropertyID(string.characters8(), length) : cssPropertyID(string.characters16(), length);
-}
-
-CSSPropertyID cssPropertyID(const CSSParserString& string)
-{
- unsigned length = string.length();
-
- if (!length)
- return CSSPropertyInvalid;
- if (length > maxCSSPropertyNameLength)
- return CSSPropertyInvalid;
-
- return string.is8Bit() ? cssPropertyID(string.characters8(), length) : cssPropertyID(string.characters16(), length);
-}
-
-template <typename CharacterType>
-static CSSValueID cssValueKeywordID(const CharacterType* valueKeyword, unsigned length)
-{
- char buffer[maxCSSValueKeywordLength + 1]; // 1 for null character
-
- for (unsigned i = 0; i != length; ++i) {
- CharacterType c = valueKeyword[i];
- if (c == 0 || c >= 0x7F)
- return CSSValueInvalid; // illegal character
- buffer[i] = WTF::toASCIILower(c);
- }
- buffer[length] = '\0';
-
- const Value* hashTableEntry = findValue(buffer, length);
- return hashTableEntry ? static_cast<CSSValueID>(hashTableEntry->id) : CSSValueInvalid;
-}
-
-CSSValueID cssValueKeywordID(const CSSParserString& string)
-{
- unsigned length = string.length();
- if (!length)
- return CSSValueInvalid;
- if (length > maxCSSValueKeywordLength)
- return CSSValueInvalid;
-
- return string.is8Bit() ? cssValueKeywordID(string.characters8(), length) : cssValueKeywordID(string.characters16(), length);
-}
-
-bool isValidNthToken(const CSSParserString& token)
-{
- // The tokenizer checks for the construct of an+b.
- // However, since the {ident} rule precedes the {nth} rule, some of those
- // tokens are identified as string literal. Furthermore we need to accept
- // "odd" and "even" which does not match to an+b.
- return equalIgnoringCase(token, "odd") || equalIgnoringCase(token, "even")
- || equalIgnoringCase(token, "n") || equalIgnoringCase(token, "-n");
-}
-
}
« no previous file with comments | « Source/core/css/parser/BisonCSSParser.h ('k') | Source/core/css/parser/CSSPropertyParser.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698