Merge from Chromium at DEPS revision 257591
This commit was generated by merge_to_master.py.
Change-Id: I834f3ca85c1ef7ec2c1061847a3d92aa461da043
diff --git a/Source/core/css/parser/CSSPropertyParser.cpp b/Source/core/css/parser/CSSPropertyParser.cpp
new file mode 100644
index 0000000..89f3140
--- /dev/null
+++ b/Source/core/css/parser/CSSPropertyParser.cpp
@@ -0,0 +1,8464 @@
+/*
+ * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
+ * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
+ * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
+ * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "core/css/parser/CSSPropertyParser.h"
+#include "RuntimeEnabledFeatures.h"
+#include "core/rendering/RenderTheme.h"
+#include "core/svg/SVGPaint.h"
+// FIXME: Way too many!
+#include "CSSValueKeywords.h"
+#include "RuntimeEnabledFeatures.h"
+#include "StylePropertyShorthand.h"
+#include "core/css/CSSArrayFunctionValue.h"
+#include "core/css/CSSAspectRatioValue.h"
+#include "core/css/CSSBasicShapes.h"
+#include "core/css/CSSBorderImage.h"
+#include "core/css/CSSCanvasValue.h"
+#include "core/css/CSSCrossfadeValue.h"
+#include "core/css/CSSCursorImageValue.h"
+#include "core/css/CSSFontFaceSrcValue.h"
+#include "core/css/CSSFontFeatureValue.h"
+#include "core/css/CSSFunctionValue.h"
+#include "core/css/CSSGradientValue.h"
+#include "core/css/CSSGridLineNamesValue.h"
+#include "core/css/CSSGridTemplateAreasValue.h"
+#include "core/css/CSSImageSetValue.h"
+#include "core/css/CSSImageValue.h"
+#include "core/css/CSSInheritedValue.h"
+#include "core/css/CSSInitialValue.h"
+#include "core/css/CSSKeyframeRule.h"
+#include "core/css/CSSKeyframesRule.h"
+#include "core/css/CSSLineBoxContainValue.h"
+#include "core/css/CSSParserValues.h"
+#include "core/css/CSSPrimitiveValue.h"
+#include "core/css/CSSPropertySourceData.h"
+#include "core/css/CSSReflectValue.h"
+#include "core/css/CSSSVGDocumentValue.h"
+#include "core/css/CSSSelector.h"
+#include "core/css/CSSShadowValue.h"
+#include "core/css/CSSTimingFunctionValue.h"
+#include "core/css/CSSTransformValue.h"
+#include "core/css/CSSUnicodeRangeValue.h"
+#include "core/css/CSSValueList.h"
+#include "core/css/CSSValuePool.h"
+#include "core/css/Counter.h"
+#include "core/css/HashTools.h"
+#include "core/css/Pair.h"
+#include "core/css/Rect.h"
+#include "core/css/parser/CSSParserIdioms.h"
+#include "core/html/parser/HTMLParserIdioms.h"
+#include "core/inspector/InspectorInstrumentation.h"
+#include "core/rendering/RenderTheme.h"
+#include "core/svg/SVGParserUtilities.h"
+#include "platform/FloatConversion.h"
+#include "wtf/BitArray.h"
+#include "wtf/HexNumber.h"
+#include "wtf/text/StringBuffer.h"
+#include "wtf/text/StringBuilder.h"
+#include "wtf/text/StringImpl.h"
+#include "wtf/text/TextEncoding.h"
+#include <limits.h>
+
+using namespace std;
+
+namespace WebCore {
+
+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;
+};
+
+CSSPropertyParser::CSSPropertyParser(OwnPtr<CSSParserValueList>& valueList,
+ const CSSParserContext& context, bool inViewport, bool savedImportant,
+ WillBeHeapVector<CSSProperty, 256>& parsedProperties, bool& hasFontFaceOnlyValues)
+ : m_valueList(valueList)
+ , m_context(context)
+ , m_inViewport(inViewport)
+ , m_important(savedImportant) // See comment in header, should be removed.
+ , m_parsedProperties(parsedProperties)
+ , m_hasFontFaceOnlyValues(hasFontFaceOnlyValues)
+ , m_inParseShorthand(0)
+ , m_currentShorthand(CSSPropertyInvalid)
+ , m_implicitShorthand(false)
+{
+}
+
+CSSPropertyParser::~CSSPropertyParser()
+{
+}
+
+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 CSSPropertyParser::rollbackLastProperties(int num)
+{
+ ASSERT(num >= 0);
+ ASSERT(m_parsedProperties.size() >= static_cast<unsigned>(num));
+ m_parsedProperties.shrink(m_parsedProperties.size() - num);
+}
+
+KURL CSSPropertyParser::completeURL(const String& url) const
+{
+ return m_context.completeURL(url);
+}
+
+bool CSSPropertyParser::validCalculationUnit(CSSParserValue* value, Units unitflags, ReleaseParsedCalcValueCondition releaseCalc)
+{
+ bool mustBeNonNegative = unitflags & FNonNeg;
+
+ 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;
+}
+
+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));
+}
+
+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;
+ }
+ 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;
+}
+
+PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::createPrimitiveNumericValue(CSSParserValue* value)
+{
+ if (m_parsedCalculation) {
+ ASSERT(isCalculation(value));
+ return CSSPrimitiveValue::create(m_parsedCalculation.release());
+ }
+
+ 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));
+}
+
+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);
+}
+
+static inline bool isComma(CSSParserValue* value)
+{
+ return value && value->unit == CSSParserValue::Operator && value->iValue == ',';
+}
+
+static inline bool isForwardSlashOperator(CSSParserValue* value)
+{
+ ASSERT(value);
+ return value->unit == CSSParserValue::Operator && value->iValue == '/';
+}
+
+static bool isGeneratedImageValue(CSSParserValue* val)
+{
+ if (val->unit != CSSParserValue::Function)
+ return false;
+
+ 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(");
+}
+
+bool CSSPropertyParser::validWidthOrHeight(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);
+}
+
+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;
+}
+
+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;
+ }
+
+ 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);
+}
+
+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] | manipulation
+ 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)
+{
+ // 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.
+ CSSParserValue* 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
+ || (value->id == CSSValueStepMiddle && RuntimeEnabledFeatures::webAnimationsAPIEnabled()))
+ 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;
+ StepsTimingFunction::StepAtPosition stepAtPosition = StepsTimingFunction::StepAtEnd;
+
+ 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();
+ switch (v->id) {
+ case CSSValueMiddle:
+ if (!RuntimeEnabledFeatures::webAnimationsAPIEnabled())
+ return nullptr;
+ stepAtPosition = StepsTimingFunction::StepAtMiddle;
+ break;
+ case CSSValueStart:
+ stepAtPosition = StepsTimingFunction::StepAtStart;
+ break;
+ case CSSValueEnd:
+ stepAtPosition = StepsTimingFunction::StepAtEnd;
+ break;
+ default:
+ return nullptr;
+ }
+ }
+
+ return CSSStepsTimingFunctionValue::create(numSteps, stepAtPosition);
+ }
+
+ 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 && !args->current()) {
+ 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 || args->current())
+ 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();
+ }
+
+ return parseBasicShapeAndOrBox();
+}
+
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseBasicShapeAndOrBox()
+{
+ CSSParserValue* value = m_valueList->current();
+
+ bool shapeFound = false;
+ bool boxFound = false;
+ CSSValueID valueId;
+
+ RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
+ for (unsigned i = 0; i < 2; ++i) {
+ if (!value)
+ break;
+ valueId = value->id;
+ if (value->unit == CSSParserValue::Function && !shapeFound) {
+ // parseBasicShape already asks for the next value list item.
+ RefPtrWillBeRawPtr<CSSPrimitiveValue> shapeValue = parseBasicShape();
+ if (!shapeValue)
+ return nullptr;
+ list->append(shapeValue.release());
+ shapeFound = true;
+ } else if (isBoxValue(valueId) && !boxFound) {
+ list->append(parseValidPrimitive(valueId, value));
+ boxFound = true;
+ m_valueList->next();
+ } else {
+ return nullptr;
+ }
+
+ value = m_valueList->current();
+ }
+
+ if (m_valueList->current())
+ return nullptr;
+ return list.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;
+}
+
+template bool CSSPropertyParser::fastParseColor(RGBA32&, const String&, bool strict);
+
+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;
+}
+
+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 || value->id == CSSValueManipulation)) {
+ 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)
+ 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;
+}
+
+bool CSSPropertyParser::parseFontFeatureTag(CSSValueList* settings)
+{
+ // Feature tag name consists of 4-letter characters.
+ static const unsigned tagNameLength = 4;
+
+ 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;
+ }
+
+ 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();
+ }
+ }
+ 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;
+ bool sawContextualLigaturesValue = false;
+
+ for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
+ if (value->unit != CSSPrimitiveValue::CSS_IDENT)
+ return false;
+
+ 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));
+ break;
+ case CSSValueNoContextual:
+ case CSSValueContextual:
+ if (sawContextualLigaturesValue)
+ return false;
+ sawContextualLigaturesValue = true;
+ ligatureValues->append(cssValuePool().createIdentifierValue(value->id));
+ 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 (!m_parsedCalculation)
+ return false;
+
+ return true;
+}
+
+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");
+}
+
+bool CSSPropertyParser::isSystemColor(int id)
+{
+ return (id >= CSSValueActiveborder && id <= CSSValueWindowtext) || id == CSSValueMenu;
+}
+
+bool CSSPropertyParser::parseSVGValue(CSSPropertyID propId, bool important)
+{
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return false;
+
+ CSSValueID id = value->id;
+
+ bool validPrimitive = false;
+ RefPtrWillBeRawPtr<CSSValue> parsedValue;
+
+ switch (propId) {
+ /* The comment to the right defines all valid value of these
+ * properties as defined in SVG 1.1, Appendix N. Property index */
+ case CSSPropertyAlignmentBaseline:
+ // auto | baseline | before-edge | text-before-edge | middle |
+ // central | after-edge | text-after-edge | ideographic | alphabetic |
+ // hanging | mathematical | inherit
+ if (id == CSSValueAuto || id == CSSValueBaseline || id == CSSValueMiddle
+ || (id >= CSSValueBeforeEdge && id <= CSSValueMathematical))
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyBaselineShift:
+ // baseline | super | sub | <percentage> | <length> | inherit
+ if (id == CSSValueBaseline || id == CSSValueSub
+ || id >= CSSValueSuper)
+ validPrimitive = true;
+ else
+ validPrimitive = validUnit(value, FLength | FPercent, SVGAttributeMode);
+ break;
+
+ case CSSPropertyDominantBaseline:
+ // auto | use-script | no-change | reset-size | ideographic |
+ // alphabetic | hanging | mathematical | central | middle |
+ // text-after-edge | text-before-edge | inherit
+ if (id == CSSValueAuto || id == CSSValueMiddle
+ || (id >= CSSValueUseScript && id <= CSSValueResetSize)
+ || (id >= CSSValueCentral && id <= CSSValueMathematical))
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyEnableBackground:
+ // accumulate | new [x] [y] [width] [height] | inherit
+ if (id == CSSValueAccumulate) // TODO : new
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyMarkerStart:
+ case CSSPropertyMarkerMid:
+ case CSSPropertyMarkerEnd:
+ case CSSPropertyMask:
+ if (id == CSSValueNone) {
+ validPrimitive = true;
+ } else if (value->unit == CSSPrimitiveValue::CSS_URI) {
+ parsedValue = CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_URI);
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+
+ case CSSPropertyClipRule: // nonzero | evenodd | inherit
+ case CSSPropertyFillRule:
+ if (id == CSSValueNonzero || id == CSSValueEvenodd)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyStrokeMiterlimit: // <miterlimit> | inherit
+ validPrimitive = validUnit(value, FNumber | FNonNeg, SVGAttributeMode);
+ break;
+
+ case CSSPropertyStrokeLinejoin: // miter | round | bevel | inherit
+ if (id == CSSValueMiter || id == CSSValueRound || id == CSSValueBevel)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyStrokeLinecap: // butt | round | square | inherit
+ if (id == CSSValueButt || id == CSSValueRound || id == CSSValueSquare)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyStrokeOpacity: // <opacity-value> | inherit
+ case CSSPropertyFillOpacity:
+ case CSSPropertyStopOpacity:
+ case CSSPropertyFloodOpacity:
+ validPrimitive = (!id && validUnit(value, FNumber | FPercent, SVGAttributeMode));
+ break;
+
+ case CSSPropertyShapeRendering:
+ // auto | optimizeSpeed | crispEdges | geometricPrecision | inherit
+ if (id == CSSValueAuto || id == CSSValueOptimizespeed
+ || id == CSSValueCrispedges || id == CSSValueGeometricprecision)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyImageRendering: // auto | optimizeSpeed |
+ case CSSPropertyColorRendering: // optimizeQuality | inherit
+ if (id == CSSValueAuto || id == CSSValueOptimizespeed
+ || id == CSSValueOptimizequality)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyBufferedRendering: // auto | dynamic | static
+ if (id == CSSValueAuto || id == CSSValueDynamic || id == CSSValueStatic)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyColorProfile: // auto | sRGB | <name> | <uri> inherit
+ if (id == CSSValueAuto || id == CSSValueSrgb)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyColorInterpolation: // auto | sRGB | linearRGB | inherit
+ case CSSPropertyColorInterpolationFilters:
+ if (id == CSSValueAuto || id == CSSValueSrgb || id == CSSValueLinearrgb)
+ validPrimitive = true;
+ break;
+
+ /* Start of supported CSS properties with validation. This is needed for parseShortHand to work
+ * correctly and allows optimization in applyRule(..)
+ */
+
+ case CSSPropertyTextAnchor: // start | middle | end | inherit
+ if (id == CSSValueStart || id == CSSValueMiddle || id == CSSValueEnd)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyGlyphOrientationVertical: // auto | <angle> | inherit
+ if (id == CSSValueAuto) {
+ validPrimitive = true;
+ break;
+ }
+ /* fallthrough intentional */
+ case CSSPropertyGlyphOrientationHorizontal: // <angle> (restricted to _deg_ per SVG 1.1 spec) | inherit
+ if (value->unit == CSSPrimitiveValue::CSS_DEG || value->unit == CSSPrimitiveValue::CSS_NUMBER) {
+ parsedValue = CSSPrimitiveValue::create(value->fValue, CSSPrimitiveValue::CSS_DEG);
+
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+
+ case CSSPropertyFill: // <paint> | inherit
+ case CSSPropertyStroke: // <paint> | inherit
+ {
+ if (id == CSSValueNone) {
+ parsedValue = SVGPaint::createNone();
+ } else if (id == CSSValueCurrentcolor) {
+ parsedValue = SVGPaint::createCurrentColor();
+ } else if (isSystemColor(id)) {
+ parsedValue = SVGPaint::createColor(RenderTheme::theme().systemColor(id));
+ } else if (value->unit == CSSPrimitiveValue::CSS_URI) {
+ RGBA32 c = Color::transparent;
+ if (m_valueList->next()) {
+ if (parseColorFromValue(m_valueList->current(), c))
+ parsedValue = SVGPaint::createURIAndColor(value->string, c);
+ else if (m_valueList->current()->id == CSSValueNone)
+ parsedValue = SVGPaint::createURIAndNone(value->string);
+ else if (m_valueList->current()->id == CSSValueCurrentcolor)
+ parsedValue = SVGPaint::createURIAndCurrentColor(value->string);
+ }
+ if (!parsedValue)
+ parsedValue = SVGPaint::createURI(value->string);
+ } else {
+ parsedValue = parseSVGPaint();
+ }
+
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+
+ case CSSPropertyStopColor: // TODO : icccolor
+ case CSSPropertyFloodColor:
+ case CSSPropertyLightingColor:
+ if (isSystemColor(id)) {
+ parsedValue = cssValuePool().createColorValue(RenderTheme::theme().systemColor(id).rgb());
+ } else if ((id >= CSSValueAqua && id <= CSSValueTransparent)
+ || (id >= CSSValueAliceblue && id <= CSSValueYellowgreen) || id == CSSValueGrey) {
+ StyleColor styleColor = SVGPaint::colorFromRGBColorString(value->string);
+ ASSERT(!styleColor.isCurrentColor());
+ parsedValue = cssValuePool().createColorValue(styleColor.color().rgb());
+ } else if (id == CSSValueCurrentcolor) {
+ parsedValue = cssValuePool().createIdentifierValue(id);
+ } else { // TODO : svgcolor (iccColor)
+ parsedValue = parseColor();
+ }
+
+ if (parsedValue)
+ m_valueList->next();
+
+ break;
+
+ case CSSPropertyPaintOrder:
+ if (!RuntimeEnabledFeatures::svgPaintOrderEnabled())
+ return false;
+
+ if (m_valueList->size() == 1 && id == CSSValueNormal)
+ validPrimitive = true;
+ else if ((parsedValue = parsePaintOrder()))
+ m_valueList->next();
+ break;
+
+ case CSSPropertyVectorEffect: // none | non-scaling-stroke | inherit
+ if (id == CSSValueNone || id == CSSValueNonScalingStroke)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyWritingMode:
+ // lr-tb | rl_tb | tb-rl | lr | rl | tb | inherit
+ if (id == CSSValueLrTb || id == CSSValueRlTb || id == CSSValueTbRl || id == CSSValueLr || id == CSSValueRl || id == CSSValueTb)
+ validPrimitive = true;
+ break;
+
+ case CSSPropertyStrokeWidth: // <length> | inherit
+ case CSSPropertyStrokeDashoffset:
+ validPrimitive = validUnit(value, FLength | FPercent, SVGAttributeMode);
+ break;
+ case CSSPropertyStrokeDasharray: // none | <dasharray> | inherit
+ if (id == CSSValueNone)
+ validPrimitive = true;
+ else
+ parsedValue = parseSVGStrokeDasharray();
+
+ break;
+
+ case CSSPropertyKerning: // auto | normal | <length> | inherit
+ if (id == CSSValueAuto || id == CSSValueNormal)
+ validPrimitive = true;
+ else
+ validPrimitive = validUnit(value, FLength, SVGAttributeMode);
+ break;
+
+ case CSSPropertyClipPath: // <uri> | none | inherit
+ case CSSPropertyFilter:
+ if (id == CSSValueNone) {
+ validPrimitive = true;
+ } else if (value->unit == CSSPrimitiveValue::CSS_URI) {
+ parsedValue = CSSPrimitiveValue::create(value->string, (CSSPrimitiveValue::UnitTypes) value->unit);
+ if (parsedValue)
+ m_valueList->next();
+ }
+ break;
+ case CSSPropertyMaskType: // luminance | alpha | inherit
+ if (id == CSSValueLuminance || id == CSSValueAlpha)
+ validPrimitive = true;
+ break;
+
+ /* shorthand properties */
+ case CSSPropertyMarker: {
+ ShorthandScope scope(this, propId);
+ CSSPropertyParser::ImplicitScope implicitScope(this, PropertyImplicit);
+ if (!parseValue(CSSPropertyMarkerStart, important))
+ return false;
+ if (m_valueList->current()) {
+ rollbackLastProperties(1);
+ return false;
+ }
+ CSSValue* value = m_parsedProperties.last().value();
+ addProperty(CSSPropertyMarkerMid, value, important);
+ addProperty(CSSPropertyMarkerEnd, value, important);
+ return true;
+ }
+ default:
+ // If you crash here, it's because you added a css property and are not handling it
+ // in either this switch statement or the one in CSSPropertyParser::parseValue
+ ASSERT_WITH_MESSAGE(0, "unimplemented propertyID: %d", propId);
+ return false;
+ }
+
+ if (validPrimitive) {
+ if (id)
+ parsedValue = CSSPrimitiveValue::createIdentifier(id);
+ else if (value->unit == CSSPrimitiveValue::CSS_STRING)
+ parsedValue = CSSPrimitiveValue::create(value->string, (CSSPrimitiveValue::UnitTypes) value->unit);
+ else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ)
+ parsedValue = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit);
+ else if (value->unit >= CSSParserValue::Q_EMS)
+ parsedValue = CSSPrimitiveValue::createAllowingMarginQuirk(value->fValue, CSSPrimitiveValue::CSS_EMS);
+ if (isCalculation(value)) {
+ // FIXME calc() http://webkit.org/b/16662 : actually create a CSSPrimitiveValue here, ie
+ // parsedValue = CSSPrimitiveValue::create(m_parsedCalculation.release());
+ m_parsedCalculation.release();
+ parsedValue = nullptr;
+ }
+ m_valueList->next();
+ }
+ if (!parsedValue || (m_valueList->current() && !inShorthand()))
+ return false;
+
+ addProperty(propId, parsedValue.release(), important);
+ return true;
+}
+
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseSVGStrokeDasharray()
+{
+ RefPtrWillBeRawPtr<CSSValueList> ret = CSSValueList::createCommaSeparated();
+ CSSParserValue* value = m_valueList->current();
+ bool validPrimitive = true;
+ while (value) {
+ validPrimitive = validUnit(value, FLength | FPercent | FNonNeg, SVGAttributeMode);
+ if (!validPrimitive)
+ break;
+ if (value->id)
+ ret->append(CSSPrimitiveValue::createIdentifier(value->id));
+ else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ)
+ ret->append(CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit));
+ value = m_valueList->next();
+ if (value && value->unit == CSSParserValue::Operator && value->iValue == ',')
+ value = m_valueList->next();
+ }
+ if (!validPrimitive)
+ return nullptr;
+ return ret.release();
+}
+
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseSVGPaint()
+{
+ RGBA32 c = Color::transparent;
+ if (!parseColorFromValue(m_valueList->current(), c))
+ return SVGPaint::createUnknown();
+ return SVGPaint::createColor(Color(c));
+}
+
+// normal | [ fill || stroke || markers ]
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parsePaintOrder() const
+{
+ if (m_valueList->size() > 3)
+ return nullptr;
+
+ CSSParserValue* value = m_valueList->current();
+ if (!value)
+ return nullptr;
+
+ RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated();
+
+ // The default paint-order is: Fill, Stroke, Markers.
+ bool seenFill = false, seenStroke = false, seenMarkers = false;
+
+ do {
+ switch (value->id) {
+ case CSSValueNormal:
+ // normal inside [fill || stroke || markers] not valid
+ return nullptr;
+ case CSSValueFill:
+ if (seenFill)
+ return nullptr;
+
+ seenFill = true;
+ break;
+ case CSSValueStroke:
+ if (seenStroke)
+ return nullptr;
+
+ seenStroke = true;
+ break;
+ case CSSValueMarkers:
+ if (seenMarkers)
+ return nullptr;
+
+ seenMarkers = true;
+ break;
+ default:
+ return nullptr;
+ }
+
+ parsedValues->append(CSSPrimitiveValue::createIdentifier(value->id));
+ } while ((value = m_valueList->next()));
+
+ // fill out the rest of the paint order
+ if (!seenFill)
+ parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueFill));
+ if (!seenStroke)
+ parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueStroke));
+ if (!seenMarkers)
+ parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueMarkers));
+
+ return parsedValues.release();
+}
+
+} // namespace WebCore