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Unified Diff: Source/core/css/parser/CSSPropertyParser.cpp

Issue 1319343004: Add property parser code path based on CSSParserTokenRange (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Patch for landing Created 5 years, 3 months ago
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Index: Source/core/css/parser/CSSPropertyParser.cpp
diff --git a/Source/core/css/parser/CSSPropertyParser.cpp b/Source/core/css/parser/CSSPropertyParser.cpp
index d08862af53cf57c0a7509af8f5495f06444435a7..2e6c483da002877dc8980b5b0be85f790357171b 100644
--- a/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/Source/core/css/parser/CSSPropertyParser.cpp
@@ -1,83 +1,24 @@
-/*
- * 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.
- */
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
#include "config.h"
#include "core/css/parser/CSSPropertyParser.h"
#include "core/StylePropertyShorthand.h"
-#include "core/css/CSSBasicShapes.h"
-#include "core/css/CSSBorderImage.h"
-#include "core/css/CSSCanvasValue.h"
-#include "core/css/CSSContentDistributionValue.h"
-#include "core/css/CSSCounterValue.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/CSSGridLineNamesValue.h"
-#include "core/css/CSSImageSetValue.h"
-#include "core/css/CSSImageValue.h"
-#include "core/css/CSSPathValue.h"
-#include "core/css/CSSPrimitiveValueMappings.h"
-#include "core/css/CSSProperty.h"
-#include "core/css/CSSPropertyMetadata.h"
-#include "core/css/CSSQuadValue.h"
-#include "core/css/CSSReflectValue.h"
-#include "core/css/CSSSVGDocumentValue.h"
-#include "core/css/CSSShadowValue.h"
-#include "core/css/CSSTimingFunctionValue.h"
-#include "core/css/CSSUnicodeRangeValue.h"
-#include "core/css/CSSValuePair.h"
+#include "core/css/CSSCalculationValue.h"
#include "core/css/CSSValuePool.h"
-#include "core/css/HashTools.h"
#include "core/css/parser/CSSParserFastPaths.h"
#include "core/css/parser/CSSParserValues.h"
#include "core/frame/UseCounter.h"
-#include "core/layout/LayoutTheme.h"
-#include "core/style/GridCoordinate.h"
-#include "core/svg/SVGPathUtilities.h"
-#include "platform/RuntimeEnabledFeatures.h"
namespace blink {
-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);
-}
-
-CSSPropertyParser::CSSPropertyParser(CSSParserValueList* valueList,
+CSSPropertyParser::CSSPropertyParser(CSSParserValueList* valueList, const CSSParserTokenRange& range,
const CSSParserContext& context, WillBeHeapVector<CSSProperty, 256>& parsedProperties,
StyleRule::Type ruleType)
: m_valueList(valueList)
+ , m_range(range)
, m_context(context)
, m_parsedProperties(parsedProperties)
, m_ruleType(ruleType)
@@ -88,12 +29,15 @@ CSSPropertyParser::CSSPropertyParser(CSSParserValueList* valueList,
}
bool CSSPropertyParser::parseValue(CSSPropertyID unresolvedProperty, bool important,
- CSSParserValueList* valueList, const CSSParserContext& context,
+ const CSSParserTokenRange& range, const CSSParserContext& context,
WillBeHeapVector<CSSProperty, 256>& parsedProperties, StyleRule::Type ruleType)
{
int parsedPropertiesSize = parsedProperties.size();
- CSSPropertyParser parser(valueList, context, parsedProperties, ruleType);
+ CSSParserValueList valueList(range);
+ if (!valueList.size())
+ return false; // Parser error
+ CSSPropertyParser parser(&valueList, range, context, parsedProperties, ruleType);
CSSPropertyID resolvedProperty = resolveCSSPropertyID(unresolvedProperty);
bool parseSuccess;
@@ -116,392 +60,163 @@ bool CSSPropertyParser::parseValue(CSSPropertyID unresolvedProperty, bool import
return parseSuccess;
}
-void CSSPropertyParser::addProperty(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> value, bool important, bool implicit)
-{
- ASSERT(!isPropertyAlias(propId));
-
- int shorthandIndex = 0;
- bool setFromShorthand = false;
-
- if (m_currentShorthand) {
- Vector<StylePropertyShorthand, 4> shorthands;
- getMatchingShorthandsForLonghand(propId, &shorthands);
- // Viewport descriptors have width and height as shorthands, but it doesn't
- // make sense for CSSProperties.in to consider them as such. The shorthand
- // index is only used by the inspector and doesn't affect viewport
- // descriptors.
- if (shorthands.isEmpty())
- ASSERT(m_currentShorthand == CSSPropertyWidth || m_currentShorthand == CSSPropertyHeight);
- else
- setFromShorthand = true;
-
- if (shorthands.size() > 1)
- shorthandIndex = indexOfShorthandForLonghand(m_currentShorthand, shorthands);
- }
-
- m_parsedProperties.append(CSSProperty(propId, value, important, setFromShorthand, shorthandIndex, 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)
+// Helper methods for consuming tokens starts here.
+static bool consumeCommaIncludingWhitespace(CSSParserTokenRange& valueList)
{
- bool mustBeNonNegative = unitflags & (FNonNeg | FPositiveInteger);
-
- if (!parseCalculation(value, mustBeNonNegative ? ValueRangeNonNegative : ValueRangeAll))
+ CSSParserToken value = valueList.peek();
+ if (value.type() != CommaToken)
return false;
-
- bool b = false;
- switch (m_parsedCalculation->category()) {
- case CalcLength:
- b = (unitflags & FLength);
- break;
- case CalcNumber:
- b = (unitflags & FNumber);
- if (!b && (unitflags & (FInteger | FPositiveInteger)) && m_parsedCalculation->isInt())
- b = true;
- if (b && mustBeNonNegative && m_parsedCalculation->isNegative())
- b = false;
- // Always resolve calc() to a UnitType::Number in the CSSParserValue if there are no non-numbers specified in the unitflags.
- if (b && !(unitflags & ~(FInteger | FNumber | FPositiveInteger | FNonNeg))) {
- double number = m_parsedCalculation->doubleValue();
- if ((unitflags & FPositiveInteger) && number <= 0) {
- b = false;
- } else {
- delete value->calcFunction;
- value->setUnit(CSSPrimitiveValue::UnitType::Number);
- value->fValue = number;
- value->isInt = m_parsedCalculation->isInt();
- }
- m_parsedCalculation.release();
- return b;
- }
- break;
- case CalcPercent:
- b = (unitflags & FPercent);
- 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 CalcAngle:
- b = (unitflags & FAngle);
- break;
- case CalcTime:
- b = (unitflags & FTime);
- break;
- case CalcFrequency:
- b = (unitflags & FFrequency);
- break;
- case CalcOther:
- break;
- }
- if (!b || releaseCalc == ReleaseParsedCalcValue)
- m_parsedCalculation.release();
- return b;
+ valueList.consumeIncludingWhitespace();
+ return true;
}
-inline bool CSSPropertyParser::shouldAcceptUnitLessValues(CSSParserValue* value, Units unitflags, CSSParserMode cssParserMode)
+static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> consumeIdent(CSSParserTokenRange& range)
{
- // Quirks mode for certain properties and presentation attributes accept unit-less values for certain units.
- return (unitflags & (FLength | FAngle))
- && (!value->fValue // 0 can always be unitless.
- || isUnitLessLengthParsingEnabledForMode(cssParserMode) // HTML and SVG attribute values can always be unitless.
- || (cssParserMode == HTMLQuirksMode && (unitflags & FUnitlessQuirk)));
+ if (range.peek().type() != IdentToken)
+ return nullptr;
+ return cssValuePool().createIdentifierValue(range.consumeIncludingWhitespace().id());
}
-inline bool isCalculation(CSSParserValue* value)
+static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> consumeCustomIdent(CSSParserTokenRange& range)
{
- return value->m_unit == CSSParserValue::CalcFunction;
+ if (range.peek().type() != IdentToken)
+ return nullptr;
+ return cssValuePool().createValue(range.consumeIncludingWhitespace().value(), CSSPrimitiveValue::UnitType::CustomIdentifier);
}
-bool CSSPropertyParser::validUnit(CSSParserValue* value, Units unitflags, CSSParserMode cssParserMode, ReleaseParsedCalcValueCondition releaseCalc)
+static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> consumeString(CSSParserTokenRange& range)
{
- if (isCalculation(value))
- return validCalculationUnit(value, unitflags, releaseCalc);
-
- if (unitflags & FNonNeg && value->fValue < 0)
- return false;
- switch (value->unit()) {
- case CSSPrimitiveValue::UnitType::Number:
- if (unitflags & FNumber)
- return true;
- if (shouldAcceptUnitLessValues(value, unitflags, cssParserMode)) {
- value->setUnit((unitflags & FLength) ? CSSPrimitiveValue::UnitType::Pixels : CSSPrimitiveValue::UnitType::Degrees);
- return true;
- }
- if ((unitflags & FInteger) && value->isInt)
- return true;
- if ((unitflags & FPositiveInteger) && value->isInt && value->fValue > 0)
- return true;
- return false;
- case CSSPrimitiveValue::UnitType::Percentage:
- return unitflags & FPercent;
- case CSSPrimitiveValue::UnitType::QuirkyEms:
- if (cssParserMode != UASheetMode)
- return false;
- /* fallthrough intentional */
- case CSSPrimitiveValue::UnitType::Ems:
- case CSSPrimitiveValue::UnitType::Rems:
- case CSSPrimitiveValue::UnitType::Chs:
- case CSSPrimitiveValue::UnitType::Exs:
- case CSSPrimitiveValue::UnitType::Pixels:
- case CSSPrimitiveValue::UnitType::Centimeters:
- case CSSPrimitiveValue::UnitType::Millimeters:
- case CSSPrimitiveValue::UnitType::Inches:
- case CSSPrimitiveValue::UnitType::Points:
- case CSSPrimitiveValue::UnitType::Picas:
- case CSSPrimitiveValue::UnitType::ViewportWidth:
- case CSSPrimitiveValue::UnitType::ViewportHeight:
- case CSSPrimitiveValue::UnitType::ViewportMin:
- case CSSPrimitiveValue::UnitType::ViewportMax:
- return unitflags & FLength;
- case CSSPrimitiveValue::UnitType::Milliseconds:
- case CSSPrimitiveValue::UnitType::Seconds:
- return unitflags & FTime;
- case CSSPrimitiveValue::UnitType::Degrees:
- case CSSPrimitiveValue::UnitType::Radians:
- case CSSPrimitiveValue::UnitType::Gradians:
- case CSSPrimitiveValue::UnitType::Turns:
- return unitflags & FAngle;
- case CSSPrimitiveValue::UnitType::DotsPerPixel:
- case CSSPrimitiveValue::UnitType::DotsPerInch:
- case CSSPrimitiveValue::UnitType::DotsPerCentimeter:
- return unitflags & FResolution;
- default:
- return false;
- }
+ if (range.peek().type() != StringToken)
+ return nullptr;
+ return cssValuePool().createValue(range.consumeIncludingWhitespace().value(), CSSPrimitiveValue::UnitType::String);
}
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::createPrimitiveNumericValue(CSSParserValue* value)
+// Methods for consuming non-shorthand properties starts here.
+static PassRefPtrWillBeRawPtr<CSSValue> consumeWillChange(CSSParserTokenRange& range)
{
- if (m_parsedCalculation) {
- ASSERT(isCalculation(value));
- return CSSPrimitiveValue::create(m_parsedCalculation.release());
+ RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated();
+ if (range.peek().id() == CSSValueAuto) {
+ // FIXME: This will be read back as an empty string instead of auto
+ return values.release();
}
- ASSERT((value->unit() >= CSSPrimitiveValue::UnitType::Number && value->unit() <= CSSPrimitiveValue::UnitType::Kilohertz)
- || (value->unit() >= CSSPrimitiveValue::UnitType::Turns && value->unit() <= CSSPrimitiveValue::UnitType::Chs)
- || (value->unit() >= CSSPrimitiveValue::UnitType::ViewportWidth && value->unit() <= CSSPrimitiveValue::UnitType::ViewportMax)
- || (value->unit() >= CSSPrimitiveValue::UnitType::DotsPerPixel && value->unit() <= CSSPrimitiveValue::UnitType::DotsPerCentimeter));
- return cssValuePool().createValue(value->fValue, value->unit());
-}
-
-inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::createPrimitiveStringValue(CSSParserValue* value)
-{
- ASSERT(value->unit() == CSSPrimitiveValue::UnitType::String || value->m_unit == CSSParserValue::Identifier);
- return cssValuePool().createValue(value->string, CSSPrimitiveValue::UnitType::String);
-}
-
-inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::createPrimitiveCustomIdentValue(CSSParserValue* value)
-{
- ASSERT(value->unit() == CSSPrimitiveValue::UnitType::String || value->m_unit == CSSParserValue::Identifier);
- return cssValuePool().createValue(value->string, CSSPrimitiveValue::UnitType::CustomIdentifier);
-}
-
-inline PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::createCSSImageValueWithReferrer(const String& rawValue, const KURL& url)
-{
- RefPtrWillBeRawPtr<CSSValue> imageValue = CSSImageValue::create(rawValue, url);
- toCSSImageValue(imageValue.get())->setReferrer(m_context.referrer());
- return imageValue;
-}
-
-static inline bool isComma(CSSParserValue* value)
-{
- ASSERT(value);
- return value->m_unit == CSSParserValue::Operator && value->iValue == ',';
-}
-
-static bool consumeComma(CSSParserValueList* valueList)
-{
- CSSParserValue* value = valueList->current();
- if (!value || !isComma(value))
- return false;
- valueList->next();
- return true;
-}
-
-static inline bool isForwardSlashOperator(CSSParserValue* value)
-{
- ASSERT(value);
- return value->m_unit == CSSParserValue::Operator && value->iValue == '/';
-}
-
-static bool isGeneratedImageValue(CSSParserValue* val)
-{
- if (val->m_unit != CSSParserValue::Function)
- return false;
-
- CSSValueID id = val->function->id;
- return id == CSSValueLinearGradient
- || id == CSSValueRadialGradient
- || id == CSSValueRepeatingLinearGradient
- || id == CSSValueRepeatingRadialGradient
- || id == CSSValueWebkitLinearGradient
- || id == CSSValueWebkitRadialGradient
- || id == CSSValueWebkitRepeatingLinearGradient
- || id == CSSValueWebkitRepeatingRadialGradient
- || id == CSSValueWebkitGradient
- || id == CSSValueWebkitCanvas
- || id == CSSValueWebkitCrossFade;
-}
-
-bool CSSPropertyParser::validWidthOrHeight(CSSParserValue* value, Units unitless)
-{
- int id = value->id;
- if (id == CSSValueIntrinsic || id == CSSValueMinIntrinsic
- || id == CSSValueWebkitMinContent || id == CSSValueWebkitMaxContent || id == CSSValueWebkitFillAvailable || id == CSSValueWebkitFitContent
- || id == CSSValueMinContent || id == CSSValueMaxContent || id == CSSValueFitContent) {
- if (m_context.useCounter()) {
- switch (value->id) {
- case CSSValueIntrinsic:
- m_context.useCounter()->count(UseCounter::LegacyCSSValueIntrinsic);
- break;
- case CSSValueMinIntrinsic:
- m_context.useCounter()->count(UseCounter::LegacyCSSValueMinIntrinsic);
- break;
- case CSSValueWebkitMinContent:
- m_context.useCounter()->count(UseCounter::CSSValuePrefixedMinContent);
- break;
- case CSSValueWebkitMaxContent:
- m_context.useCounter()->count(UseCounter::CSSValuePrefixedMaxContent);
- break;
- case CSSValueWebkitFillAvailable:
- m_context.useCounter()->count(UseCounter::CSSValuePrefixedFillAvailable);
- break;
- case CSSValueWebkitFitContent:
- m_context.useCounter()->count(UseCounter::CSSValuePrefixedFitContent);
+ // Every comma-separated list of identifiers is a valid will-change value,
+ // unless the list includes an explicitly disallowed identifier.
+ while (true) {
+ if (range.peek().type() != IdentToken)
+ return nullptr;
+ CSSPropertyID unresolvedProperty = unresolvedCSSPropertyID(range.peek().value());
+ if (unresolvedProperty) {
+ ASSERT(CSSPropertyMetadata::isEnabledProperty(unresolvedProperty));
+ // Now "all" is used by both CSSValue and CSSPropertyValue.
+ // Need to return nullptr when currentValue is CSSPropertyAll.
+ if (unresolvedProperty == CSSPropertyWillChange || unresolvedProperty == CSSPropertyAll)
+ return nullptr;
+ values->append(cssValuePool().createIdentifierValue(unresolvedProperty));
+ range.consumeIncludingWhitespace();
+ } else {
+ switch (range.peek().id()) {
+ case CSSValueNone:
+ case CSSValueAll:
+ case CSSValueAuto:
+ case CSSValueDefault:
+ case CSSValueInitial:
+ case CSSValueInherit:
+ return nullptr;
+ case CSSValueContents:
+ case CSSValueScrollPosition:
+ values->append(consumeIdent(range));
break;
default:
+ range.consumeIncludingWhitespace();
break;
}
}
- return true;
+
+ if (range.atEnd())
+ break;
+ if (!consumeCommaIncludingWhitespace(range))
+ return nullptr;
}
- return validUnit(value, FLength | FPercent | FNonNeg | unitless);
+
+ return values.release();
}
-inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseValidPrimitive(CSSValueID identifier, CSSParserValue* value)
+static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> consumePage(CSSParserTokenRange& range)
{
- if (identifier)
- return cssValuePool().createIdentifierValue(identifier);
- if (value->unit() >= CSSPrimitiveValue::UnitType::Number && value->unit() <= CSSPrimitiveValue::UnitType::Kilohertz)
- return createPrimitiveNumericValue(value);
- if (value->unit() >= CSSPrimitiveValue::UnitType::Turns && value->unit() <= CSSPrimitiveValue::UnitType::Chs)
- return createPrimitiveNumericValue(value);
- if (value->unit() >= CSSPrimitiveValue::UnitType::ViewportWidth && value->unit() <= CSSPrimitiveValue::UnitType::ViewportMax)
- return createPrimitiveNumericValue(value);
- if (value->unit() >= CSSPrimitiveValue::UnitType::DotsPerPixel && value->unit() <= CSSPrimitiveValue::UnitType::DotsPerCentimeter)
- return createPrimitiveNumericValue(value);
- if (value->unit() == CSSPrimitiveValue::UnitType::QuirkyEms)
- return CSSPrimitiveValue::create(value->fValue, CSSPrimitiveValue::UnitType::QuirkyEms);
- if (isCalculation(value))
- return CSSPrimitiveValue::create(m_parsedCalculation.release());
-
- return nullptr;
+ if (range.peek().id() == CSSValueAuto)
+ return consumeIdent(range);
+ return consumeCustomIdent(range);
}
-void CSSPropertyParser::addExpandedPropertyForValue(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> prpValue, bool important)
+// [ <string> <string> ]+ | none
+static PassRefPtrWillBeRawPtr<CSSValue> consumeQuotes(CSSParserTokenRange& range)
{
- const StylePropertyShorthand& shorthand = shorthandForProperty(propId);
- unsigned shorthandLength = shorthand.length();
- if (!shorthandLength) {
- addProperty(propId, prpValue, important);
- return;
+ if (range.peek().id() == CSSValueNone)
+ return consumeIdent(range);
+ RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated();
+ while (!range.atEnd()) {
+ RefPtrWillBeRawPtr<CSSValue> parsedValue = consumeString(range);
+ if (!parsedValue)
+ return nullptr;
+ values->append(parsedValue.release());
}
-
- 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);
+ if (values->length() && values->length() % 2 == 0)
+ return values.release();
+ return nullptr;
}
-bool CSSPropertyParser::parseValue(CSSPropertyID unresolvedProperty, bool important)
+static PassRefPtrWillBeRawPtr<CSSValue> consumeWebkitHighlight(CSSParserTokenRange& range)
{
- CSSPropertyID propId = resolveCSSPropertyID(unresolvedProperty);
-
- CSSParserValue* value = m_valueList->current();
-
- // 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;
+ if (range.peek().id() == CSSValueNone)
+ return consumeIdent(range);
+ return consumeString(range);
+}
- if (id == CSSValueInherit) {
- if (m_valueList->size() != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool().createInheritedValue(), important);
- return true;
- } else if (id == CSSValueInitial) {
- if (m_valueList->size() != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool().createExplicitInitialValue(), important);
- return true;
- } else if (id == CSSValueUnset) {
- if (m_valueList->size() != 1)
- return false;
- addExpandedPropertyForValue(propId, cssValuePool().createUnsetValue(), important);
- return true;
+PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseSingleValue(CSSPropertyID propId)
+{
+ m_range.consumeWhitespace();
+ switch (propId) {
+ case CSSPropertyWillChange:
+ return consumeWillChange(m_range);
+ case CSSPropertyPage:
+ return consumePage(m_range);
+ case CSSPropertyQuotes:
+ return consumeQuotes(m_range);
+ case CSSPropertyWebkitHighlight:
+ return consumeWebkitHighlight(m_range);
+ default:
+ return nullptr;
}
+}
- if (CSSParserFastPaths::isKeywordPropertyID(propId)) {
- if (!CSSParserFastPaths::isValidKeywordPropertyAndValue(propId, id))
+bool CSSPropertyParser::parseShorthand(CSSPropertyID propId, bool important)
+{
+ m_range.consumeWhitespace();
+ switch (propId) {
+ case CSSPropertyWebkitMarginCollapse: {
+ CSSValueID id = m_range.consumeIncludingWhitespace().id();
+ if (!CSSParserFastPaths::isValidKeywordPropertyAndValue(CSSPropertyWebkitMarginBeforeCollapse, id))
return false;
- if (m_valueList->next() && !inShorthand())
+ RefPtrWillBeRawPtr<CSSValue> beforeCollapse = cssValuePool().createIdentifierValue(id);
+ addProperty(CSSPropertyWebkitMarginBeforeCollapse, beforeCollapse, important);
+ if (m_range.atEnd()) {
+ addProperty(CSSPropertyWebkitMarginAfterCollapse, beforeCollapse, important);
+ return true;
+ }
+ id = m_range.consumeIncludingWhitespace().id();
+ if (!CSSParserFastPaths::isValidKeywordPropertyAndValue(CSSPropertyWebkitMarginAfterCollapse, id))
return false;
- addProperty(propId, cssValuePool().createIdentifierValue(id), important);
+ addProperty(CSSPropertyWebkitMarginAfterCollapse, cssValuePool().createIdentifierValue(id), important);
return true;
}
-
- bool validPrimitive = false;
- Units unitless = FUnknown;
- RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr;
-
- switch (propId) {
- case CSSPropertySize: // <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ]
- parsedValue = parseSize();
- break;
- case CSSPropertyQuotes: // [<string> <string>]+ | none
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseQuotes();
- break;
-
- case CSSPropertyContent: // [ <string> | <uri> | <counter> | attr(X) | open-quote |
- // close-quote | no-open-quote | no-close-quote ]+ | inherit
- parsedValue = parseContent();
- break;
- case CSSPropertyClip: // <shape> | auto | inherit
- if (id == CSSValueAuto)
- validPrimitive = true;
- else if (value->m_unit == CSSParserValue::Function)
- parsedValue = parseClipShape();
- break;
-
- /* Start of supported CSS properties with validation. This is needed for parseShorthand to work
- * correctly and allows optimization in blink::applyRule(..)
- */
case CSSPropertyOverflow: {
- ShorthandScope scope(this, propId);
- if (!parseValue(CSSPropertyOverflowY, important) || m_valueList->current())
+ CSSValueID id = m_range.consumeIncludingWhitespace().id();
+ if (!CSSParserFastPaths::isValidKeywordPropertyAndValue(CSSPropertyOverflowY, id))
+ return false;
+ if (!m_range.atEnd())
return false;
+ RefPtrWillBeRawPtr<CSSValue> overflowYValue = cssValuePool().createIdentifierValue(id);
RefPtrWillBeRawPtr<CSSValue> overflowXValue = nullptr;
@@ -512,7439 +227,14 @@ bool CSSPropertyParser::parseValue(CSSPropertyID unresolvedProperty, bool import
if (id == CSSValueWebkitPagedX || id == CSSValueWebkitPagedY)
overflowXValue = cssValuePool().createIdentifierValue(CSSValueAuto);
else
- overflowXValue = m_parsedProperties.last().value();
+ overflowXValue = overflowYValue;
addProperty(CSSPropertyOverflowX, overflowXValue.release(), important);
+ addProperty(CSSPropertyOverflowY, overflowYValue.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)
- // FIXME: <string> not supported right now
- if ((id >= CSSValueWebkitAuto && id <= CSSValueWebkitMatchParent) || id == CSSValueStart || id == CSSValueEnd) {
- validPrimitive = true;
- }
- break;
-
- case CSSPropertyFontWeight: // normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | inherit
- return parseFontWeight(important) && !m_valueList->next();
-
- case CSSPropertyBorderSpacing: {
- ShorthandScope scope(this, CSSPropertyBorderSpacing);
- if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important))
- return false;
- if (!m_valueList->current()) {
- CSSValue* value = m_parsedProperties.last().value();
- addProperty(CSSPropertyWebkitBorderVerticalSpacing, value, important);
- return true;
- }
- if (!parseValue(CSSPropertyWebkitBorderVerticalSpacing, important))
- return false;
- return !m_valueList->current();
- }
- case CSSPropertyWebkitBorderHorizontalSpacing:
- case CSSPropertyWebkitBorderVerticalSpacing:
- unitless = FLength | FNonNeg;
- if (inShorthand() && m_currentShorthand == CSSPropertyBorderSpacing)
- unitless = unitless | FUnitlessQuirk;
- validPrimitive = validUnit(value, unitless);
- 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 CSSPropertyWebkitColumnRuleColor:
- case CSSPropertyWebkitTextEmphasisColor:
- case CSSPropertyWebkitTextFillColor:
- case CSSPropertyWebkitTextStrokeColor:
- ASSERT(propId != CSSPropertyTextDecorationColor || RuntimeEnabledFeatures::css3TextDecorationsEnabled());
- parsedValue = parseColor(m_valueList->current(), acceptQuirkyColors(propId));
- 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 | all-scroll |
- // zoom-in | zoom-out | -webkit-grab | -webkit-grabbing | -webkit-zoom-in | -webkit-zoom-out ] ] | inherit
- RefPtrWillBeRawPtr<CSSValueList> list = nullptr;
- while (value) {
- RefPtrWillBeRawPtr<CSSValue> image = nullptr;
- if (value->unit() == CSSPrimitiveValue::UnitType::URI) {
- String uri = value->string;
- if (!uri.isNull())
- image = createCSSImageValueWithReferrer(uri, completeURL(uri));
- } else if (value->m_unit == CSSParserValue::Function && value->function->id == CSSValueWebkitImageSet) {
- image = parseImageSet(m_valueList);
- if (!image)
- break;
- } else
- break;
-
- Vector<int> coords;
- value = m_valueList->next();
- while (value && validUnit(value, FNumber)) {
- coords.append(int(value->fValue));
- value = m_valueList->next();
- }
- bool hotSpotSpecified = false;
- IntPoint hotSpot(-1, -1);
- int nrcoords = coords.size();
- if (nrcoords > 0 && nrcoords != 2)
- return false;
- if (nrcoords == 2) {
- hotSpotSpecified = true;
- hotSpot = IntPoint(coords[0], coords[1]);
- }
-
- if (!list)
- list = CSSValueList::createCommaSeparated();
-
- if (image)
- list->append(CSSCursorImageValue::create(image, hotSpotSpecified, hotSpot));
-
- if (!consumeComma(m_valueList))
- return false;
- value = m_valueList->current();
- }
- if (value && m_context.useCounter()) {
- if (value->id == CSSValueWebkitZoomIn)
- m_context.useCounter()->count(UseCounter::PrefixedCursorZoomIn);
- else if (value->id == CSSValueWebkitZoomOut)
- m_context.useCounter()->count(UseCounter::PrefixedCursorZoomOut);
- }
- 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 <= CSSValueWebkitZoomOut) || 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 <= CSSValueWebkitZoomOut) || value->id == CSSValueCopy || value->id == CSSValueNone)
- validPrimitive = true;
- } else {
- ASSERT_NOT_REACHED();
- return false;
- }
- break;
- }
- case CSSPropertyImageOrientation:
- if (RuntimeEnabledFeatures::imageOrientationEnabled())
- validPrimitive = value->id == CSSValueFromImage || (value->unit() != CSSPrimitiveValue::UnitType::Number && validUnit(value, FAngle) && value->fValue == 0);
- 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 CSSPropertyBackgroundRepeat:
- 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 = nullptr;
- RefPtrWillBeRawPtr<CSSValue> val2 = nullptr;
- CSSPropertyID propId1, propId2;
- bool result = false;
- if (parseFillProperty(unresolvedProperty, propId1, propId2, val1, val2)) {
- if (propId == CSSPropertyBackgroundPosition ||
- propId == CSSPropertyBackgroundRepeat ||
- propId == CSSPropertyWebkitMaskPosition ||
- propId == CSSPropertyWebkitMaskRepeat) {
- ShorthandScope scope(this, propId);
- addProperty(propId1, val1.release(), important);
- if (val2)
- addProperty(propId2, val2.release(), important);
- } else {
- addProperty(propId1, val1.release(), important);
- if (val2)
- addProperty(propId2, val2.release(), important);
- }
- result = true;
- }
- m_implicitShorthand = false;
- return result;
- }
- case CSSPropertyObjectPosition:
- parsedValue = parsePosition(m_valueList);
- break;
- case CSSPropertyListStyleImage: // <uri> | none | inherit
- case CSSPropertyBorderImageSource:
- case CSSPropertyWebkitMaskBoxImageSource:
- if (id == CSSValueNone) {
- parsedValue = cssValuePool().createIdentifierValue(CSSValueNone);
- m_valueList->next();
- } else if (value->unit() == CSSPrimitiveValue::UnitType::URI) {
- parsedValue = createCSSImageValueWithReferrer(value->string, completeURL(value->string));
- m_valueList->next();
- } else if (isGeneratedImageValue(value)) {
- if (parseGeneratedImage(m_valueList, parsedValue))
- m_valueList->next();
- else
- return false;
- } else if (value->m_unit == CSSParserValue::Function && value->function->id == CSSValueWebkitImageSet) {
- parsedValue = parseImageSet(m_valueList);
- if (!parsedValue)
- return false;
- m_valueList->next();
- }
- break;
-
- case CSSPropertyBorderTopWidth: //// <border-width> | inherit
- case CSSPropertyBorderRightWidth: // Which is defined as
- case CSSPropertyBorderBottomWidth: // thin | medium | thick | <length>
- case CSSPropertyBorderLeftWidth:
- if (!inShorthand() || m_currentShorthand == CSSPropertyBorderWidth)
- unitless = FUnitlessQuirk;
- // fall through
- case CSSPropertyWebkitTextStrokeWidth:
- case CSSPropertyOutlineWidth: // <border-width> | inherit
- 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 | unitless);
- break;
-
- case CSSPropertyLetterSpacing: // normal | <length> | inherit
- case CSSPropertyWordSpacing: // normal | <length> | inherit
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength | FUnitlessQuirk);
- break;
-
- case CSSPropertyTextIndent:
- parsedValue = parseTextIndent();
- break;
-
- case CSSPropertyPaddingTop: //// <padding-width> | inherit
- case CSSPropertyPaddingRight: // Which is defined as
- case CSSPropertyPaddingBottom: // <length> | <percentage>
- case CSSPropertyPaddingLeft: ////
- unitless = FUnitlessQuirk;
- // fall through
- case CSSPropertyWebkitPaddingStart:
- case CSSPropertyWebkitPaddingEnd:
- case CSSPropertyWebkitPaddingBefore:
- case CSSPropertyWebkitPaddingAfter:
- validPrimitive = validUnit(value, FLength | FPercent | FNonNeg | unitless);
- break;
-
- case CSSPropertyMaxWidth:
- case CSSPropertyMaxHeight:
- unitless = FUnitlessQuirk;
- // fall through
- case CSSPropertyWebkitMaxLogicalWidth:
- case CSSPropertyWebkitMaxLogicalHeight:
- validPrimitive = (id == CSSValueNone || validWidthOrHeight(value, unitless));
- break;
-
- case CSSPropertyMinWidth:
- case CSSPropertyMinHeight:
- case CSSPropertyWidth:
- case CSSPropertyHeight:
- unitless = FUnitlessQuirk;
- // fall through
- case CSSPropertyWebkitMinLogicalWidth:
- case CSSPropertyWebkitMinLogicalHeight:
- case CSSPropertyWebkitLogicalWidth:
- case CSSPropertyWebkitLogicalHeight:
- validPrimitive = (id == CSSValueAuto || validWidthOrHeight(value, unitless));
- 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 = validUnit(value, FLength | FPercent | FUnitlessQuirk);
- 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: ////
- unitless = FUnitlessQuirk;
- // fall through
- case CSSPropertyWebkitMarginStart:
- case CSSPropertyWebkitMarginEnd:
- case CSSPropertyWebkitMarginBefore:
- case CSSPropertyWebkitMarginAfter:
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength | FPercent | unitless);
- 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 = validUnit(value, FPositiveInteger);
- break;
-
- case CSSPropertyZIndex: // auto | <integer> | inherit
- if (id == CSSValueAuto) {
- validPrimitive = true;
- } else if (validUnit(value, FInteger)) {
- addProperty(propId, cssValuePool().createValue(value->fValue, CSSPrimitiveValue::UnitType::Integer), important);
- return true;
- }
- break;
-
- case CSSPropertyLineHeight:
- parsedValue = parseLineHeight();
- break;
- case CSSPropertyCounterIncrement:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseCounter(1);
- break;
- case CSSPropertyCounterReset:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseCounter(0);
- 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
- parsedValue = parseTextDecoration();
- break;
-
- case CSSPropertyTextUnderlinePosition:
- // auto | [ under || [ left | right ] ], but we only support auto | under for now
- ASSERT(RuntimeEnabledFeatures::css3TextDecorationsEnabled());
- validPrimitive = (id == CSSValueAuto || id == CSSValueUnder);
- break;
-
- case CSSPropertyZoom: // normal | reset | document | <number> | <percentage> | inherit
- if (id == CSSValueNormal || id == CSSValueReset || id == CSSValueDocument)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FNumber | FPercent | FNonNeg);
- if (validPrimitive && m_context.useCounter()
- && !(id == CSSValueNormal
- || (value->unit() == CSSPrimitiveValue::UnitType::Number && value->fValue == 1)
- || (value->unit() == CSSPrimitiveValue::UnitType::Percentage && value->fValue == 100)))
- m_context.useCounter()->count(UseCounter::CSSZoomNotEqualToOne);
- break;
-
- case CSSPropertySrc:
- case CSSPropertyUnicodeRange:
- /* @font-face only descriptors */
- break;
-
- /* CSS3 properties */
-
- case CSSPropertyBorderImage:
- case CSSPropertyWebkitMaskBoxImage:
- return parseBorderImageShorthand(propId, important);
- case CSSPropertyWebkitBorderImage: {
- if (RefPtrWillBeRawPtr<CSSValue> result = parseBorderImage(propId)) {
- addProperty(propId, result, important);
- return true;
- }
+ default:
return false;
}
-
- case CSSPropertyBorderImageOutset:
- case CSSPropertyWebkitMaskBoxImageOutset: {
- RefPtrWillBeRawPtr<CSSQuadValue> result = nullptr;
- if (parseBorderImageOutset(result)) {
- addProperty(propId, result, important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageRepeat:
- case CSSPropertyWebkitMaskBoxImageRepeat: {
- RefPtrWillBeRawPtr<CSSValue> result = nullptr;
- if (parseBorderImageRepeat(result)) {
- addProperty(propId, result, important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageSlice:
- case CSSPropertyWebkitMaskBoxImageSlice: {
- RefPtrWillBeRawPtr<CSSBorderImageSliceValue> result = nullptr;
- if (parseBorderImageSlice(propId, result)) {
- addProperty(propId, result, important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderImageWidth:
- case CSSPropertyWebkitMaskBoxImageWidth: {
- RefPtrWillBeRawPtr<CSSQuadValue> result = nullptr;
- if (parseBorderImageWidth(result)) {
- addProperty(propId, result, important);
- return true;
- }
- break;
- }
- case CSSPropertyBorderTopRightRadius:
- case CSSPropertyBorderTopLeftRadius:
- case CSSPropertyBorderBottomLeftRadius:
- case CSSPropertyBorderBottomRightRadius: {
- validPrimitive = validUnit(value, FLength | FPercent | FNonNeg);
- if (!validPrimitive)
- return false;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1 = createPrimitiveNumericValue(value);
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2 = nullptr;
- value = m_valueList->next();
- if (value) {
- validPrimitive = validUnit(value, FLength | FPercent | FNonNeg);
- if (!validPrimitive)
- return false;
- parsedValue2 = createPrimitiveNumericValue(value);
- } else
- parsedValue2 = parsedValue1;
-
- if (m_valueList->next())
- return false;
- addProperty(propId, CSSValuePair::create(parsedValue1.release(), parsedValue2.release(), CSSValuePair::DropIdenticalValues), important);
- return true;
- }
- case CSSPropertyTabSize:
- // May be specified as a unit-less non-negative integer or length indicating number of space characters.
- validPrimitive = validUnit(value, FInteger | FLength | FNonNeg);
- break;
- case CSSPropertyBorderRadius:
- case CSSPropertyAliasWebkitBorderRadius:
- return parseBorderRadius(unresolvedProperty, 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:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseShadow(m_valueList, propId);
- break;
- case CSSPropertyWebkitBoxReflect:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseReflect();
- break;
- case CSSPropertyFontSizeAdjust: // none | <number>
- ASSERT(RuntimeEnabledFeatures::cssFontSizeAdjustEnabled());
- validPrimitive = (id == CSSValueNone) ? true : validUnit(value, FNumber | FNonNeg);
- break;
- case CSSPropertyOpacity:
- case CSSPropertyWebkitBoxFlex:
- validPrimitive = validUnit(value, FNumber);
- break;
- case CSSPropertyWebkitBoxFlexGroup:
- validPrimitive = validUnit(value, FInteger | FNonNeg);
- break;
- case CSSPropertyWebkitBoxOrdinalGroup:
- validPrimitive = validUnit(value, FInteger | FNonNeg) && value->fValue;
- break;
- case CSSPropertyWebkitFilter:
- case CSSPropertyBackdropFilter:
- 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::UnitType::Number), important);
- addProperty(CSSPropertyFlexShrink, cssValuePool().createValue(0, CSSPrimitiveValue::UnitType::Number), important);
- addProperty(CSSPropertyFlexBasis, cssValuePool().createIdentifierValue(CSSValueAuto), important);
- return true;
- }
- return parseFlex(m_valueList, important);
- }
- case CSSPropertyFlexBasis:
- // FIXME: Support intrinsic dimensions too.
- if (id == CSSValueAuto)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength | FPercent | FNonNeg);
- break;
- case CSSPropertyFlexGrow:
- case CSSPropertyFlexShrink:
- validPrimitive = validUnit(value, FNumber | FNonNeg);
- break;
- case CSSPropertyOrder:
- validPrimitive = validUnit(value, FInteger);
- break;
- case CSSPropertyTransform:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseTransform(unresolvedProperty == CSSPropertyAliasWebkitTransform);
- break;
- case CSSPropertyTransformOrigin: {
- RefPtrWillBeRawPtr<CSSValueList> list = parseTransformOrigin();
- if (!list)
- return false;
- // These values are added to match gecko serialization.
- if (list->length() == 1)
- list->append(cssValuePool().createValue(50, CSSPrimitiveValue::UnitType::Percentage));
- if (list->length() == 2)
- list->append(cssValuePool().createValue(0, CSSPrimitiveValue::UnitType::Pixels));
- addProperty(propId, list.release(), important);
- return true;
- }
-
- case CSSPropertyTranslate: {
- // translate : [ <length> | <percentage> ] [[ <length> | <percentage> ] <length>? ]?
- // defaults to 0 on all axis, note that the last value CANNOT be a percentage
- ASSERT(RuntimeEnabledFeatures::cssIndependentTransformPropertiesEnabled());
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- if (!validUnit(value, FLength | FPercent))
- return false;
-
- list->append(createPrimitiveNumericValue(value));
- value = m_valueList->next();
-
- if (value) {
- if (!validUnit(value, FLength | FPercent))
- return false;
-
- list->append(createPrimitiveNumericValue(value));
- value = m_valueList->next();
-
- if (value) {
- if (!validUnit(value, FLength))
- return false;
-
- list->append(createPrimitiveNumericValue(value));
- value = m_valueList->next();
- }
- }
-
- parsedValue = list.release();
- break;
- }
-
- case CSSPropertyRotate: { // rotate : <angle> <number>{3}? defaults to a 0 0 1
- ASSERT(RuntimeEnabledFeatures::cssIndependentTransformPropertiesEnabled());
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
-
- if (!validUnit(value, FAngle))
- return false;
- list->append(createPrimitiveNumericValue(value));
- value = m_valueList->next();
-
- if (!value) {
- parsedValue = list.release();
- break;
- }
-
- for (unsigned i = 0; i < 3; i++) { // 3 dimensions of rotation
- if (!value || !validUnit(value, FNumber))
- return false;
- list->append(createPrimitiveNumericValue(value));
- value = m_valueList->next();
- }
-
- parsedValue = list.release();
- break;
- }
-
- case CSSPropertyScale: { // scale: <number>{1,3}, default scale for all axis is 1
- ASSERT(RuntimeEnabledFeatures::cssIndependentTransformPropertiesEnabled());
- RefPtrWillBeRawPtr<CSSValueList> scaleList = CSSValueList::createSpaceSeparated();
-
- for (unsigned i = 0; value && i < 3; i++) { // up to 3 dimensions of scale
- if (!validUnit(value, FNumber))
- return false;
- scaleList->append(createPrimitiveNumericValue(value));
- value = m_valueList->next();
- }
-
- parsedValue = scaleList.release();
- break;
- }
-
- case CSSPropertyWebkitPerspectiveOriginX:
- case CSSPropertyWebkitTransformOriginX:
- parsedValue = parseFillPositionX(m_valueList);
- if (parsedValue)
- m_valueList->next();
- break;
- case CSSPropertyWebkitPerspectiveOriginY:
- case CSSPropertyWebkitTransformOriginY:
- parsedValue = parseFillPositionY(m_valueList);
- if (parsedValue)
- m_valueList->next();
- break;
- case CSSPropertyWebkitTransformOriginZ:
- validPrimitive = validUnit(value, FLength);
- break;
- case CSSPropertyPerspective:
- if (id == CSSValueNone) {
- validPrimitive = true;
- } else if (validUnit(value, FLength) && (m_parsedCalculation || value->fValue > 0)) {
- validPrimitive = true;
- } else if (unresolvedProperty == CSSPropertyAliasWebkitPerspective && validUnit(value, FNumber) && value->fValue > 0) {
- value->setUnit(CSSPrimitiveValue::UnitType::Pixels);
- validPrimitive = true;
- } else {
- return false;
- }
- break;
- case CSSPropertyPerspectiveOrigin: {
- RefPtrWillBeRawPtr<CSSValueList> list = parseTransformOrigin();
- if (!list || list->length() == 3)
- return false;
- // This values are added to match gecko serialization.
- if (list->length() == 1)
- list->append(cssValuePool().createValue(50, CSSPrimitiveValue::UnitType::Percentage));
- addProperty(propId, list.release(), important);
- return true;
- }
-
- case CSSPropertyMotion:
- // <motion-path> && <motion-offset> && <motion-rotation>
- ASSERT(RuntimeEnabledFeatures::cssMotionPathEnabled());
- return parseShorthand(propId, motionShorthand(), important);
- case CSSPropertyMotionPath:
- ASSERT(RuntimeEnabledFeatures::cssMotionPathEnabled());
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseMotionPath();
- break;
- case CSSPropertyMotionOffset:
- ASSERT(RuntimeEnabledFeatures::cssMotionPathEnabled());
- validPrimitive = validUnit(value, FLength | FPercent);
- break;
- case CSSPropertyMotionRotation:
- ASSERT(RuntimeEnabledFeatures::cssMotionPathEnabled());
- parsedValue = parseMotionRotation();
- break;
-
- case CSSPropertyAnimationDelay:
- case CSSPropertyAnimationDirection:
- case CSSPropertyAnimationDuration:
- case CSSPropertyAnimationFillMode:
- case CSSPropertyAnimationName:
- case CSSPropertyAnimationPlayState:
- case CSSPropertyAnimationIterationCount:
- case CSSPropertyAnimationTimingFunction:
- case CSSPropertyTransitionDelay:
- case CSSPropertyTransitionDuration:
- case CSSPropertyTransitionTimingFunction:
- case CSSPropertyTransitionProperty:
- parsedValue = parseAnimationPropertyList(propId, unresolvedProperty == CSSPropertyAliasWebkitAnimationName);
- break;
-
- case CSSPropertyJustifyContent:
- parsedValue = parseContentDistributionOverflowPosition();
- break;
- case CSSPropertyJustifySelf:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseItemPositionOverflowPosition(propId, important);
- case CSSPropertyJustifyItems:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
-
- if (parseLegacyPosition(propId, important))
- return true;
-
- m_valueList->setCurrentIndex(0);
- return parseItemPositionOverflowPosition(propId, important);
- case CSSPropertyGridAutoFlow:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- parsedValue = parseGridAutoFlow(*m_valueList);
- break;
- case CSSPropertyGridAutoColumns:
- case CSSPropertyGridAutoRows:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- parsedValue = parseGridTrackSize(*m_valueList);
- break;
-
- case CSSPropertyGridTemplateColumns:
- case CSSPropertyGridTemplateRows:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- parsedValue = parseGridTrackList();
- break;
-
- case CSSPropertyGridColumnEnd:
- case CSSPropertyGridColumnStart:
- case CSSPropertyGridRowEnd:
- case CSSPropertyGridRowStart:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- parsedValue = parseGridPosition();
- break;
-
- case CSSPropertyGridColumn:
- case CSSPropertyGridRow:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseGridItemPositionShorthand(propId, important);
-
- case CSSPropertyGridArea:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseGridAreaShorthand(important);
-
- case CSSPropertyGridTemplateAreas:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- parsedValue = parseGridTemplateAreas();
- break;
-
- case CSSPropertyGridTemplate:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseGridTemplateShorthand(important);
-
- case CSSPropertyGrid:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseGridShorthand(important);
-
- case CSSPropertyWebkitMarginCollapse: {
- ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse);
- if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important))
- return false;
- if (!m_valueList->current()) {
- CSSValue* value = m_parsedProperties.last().value();
- addProperty(webkitMarginCollapseShorthand().properties()[1], value, important);
- return true;
- }
- if (!parseValue(webkitMarginCollapseShorthand().properties()[1], important))
- return false;
- return !m_valueList->current();
- }
- case CSSPropertyWebkitColumnCount:
- parsedValue = parseColumnCount();
- break;
- case CSSPropertyWebkitColumnGap: // normal | <length>
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- validPrimitive = validUnit(value, FLength | FNonNeg);
- break;
- case CSSPropertyWebkitColumnSpan: // none | all | 1 (will be dropped in the unprefixed property)
- validPrimitive = id == CSSValueAll || id == CSSValueNone || (value->unit() == CSSPrimitiveValue::UnitType::Number && value->fValue == 1);
- break;
- case CSSPropertyWebkitColumnWidth: // auto | <length>
- parsedValue = parseColumnWidth();
- break;
- case CSSPropertyWillChange:
- parsedValue = parseWillChange();
- break;
- // 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 && !isCalculation(value) && validUnit(value, FInteger | FPercent | FNonNeg) && (value->unit() == CSSPrimitiveValue::UnitType::Percentage || value->fValue));
- break;
-
- case CSSPropertyWebkitFontSizeDelta: // <length>
- validPrimitive = validUnit(value, FLength | FUnitlessQuirk);
- break;
-
- case CSSPropertyWebkitHighlight:
- if (id == CSSValueNone) {
- validPrimitive = true;
- } else if (value->unit() == CSSPrimitiveValue::UnitType::String) {
- parsedValue = createPrimitiveStringValue(value);
- m_valueList->next();
- }
- break;
-
- case CSSPropertyWebkitHyphenateCharacter:
- case CSSPropertyWebkitLocale:
- if (id == CSSValueAuto) {
- validPrimitive = true;
- } else if (value->unit() == CSSPrimitiveValue::UnitType::String) {
- parsedValue = createPrimitiveStringValue(value);
- m_valueList->next();
- }
- break;
-
- // End Apple-specific properties
-
- case CSSPropertyWebkitAppRegion:
- if (id >= CSSValueDrag && id <= CSSValueNoDrag)
- validPrimitive = true;
- break;
-
- case CSSPropertyWebkitTapHighlightColor:
- parsedValue = parseColor(m_valueList->current());
- 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, borderShorthandForParsing(), 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)
- return parseSystemFont(important);
- return parseFont(important);
- 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:
- return parseAnimationShorthand(unresolvedProperty == CSSPropertyAliasWebkitAnimation, important);
- case CSSPropertyTransition:
- return parseTransitionShorthand(important);
- case CSSPropertyInvalid:
- return false;
- case CSSPropertyPage:
- parsedValue = parsePage();
- break;
- // CSS Text Layout Module Level 3: Vertical writing support
- case CSSPropertyWebkitTextEmphasis:
- return parseShorthand(propId, webkitTextEmphasisShorthand(), important);
-
- case CSSPropertyWebkitTextEmphasisStyle:
- parsedValue = parseTextEmphasisStyle();
- break;
-
- 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 CSSPropertyWebkitFontFeatureSettings:
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- parsedValue = parseFontFeatureSettings();
- break;
-
- case CSSPropertyFontVariantLigatures:
- if (id == CSSValueNormal)
- validPrimitive = true;
- else
- return parseFontVariantLigatures(important);
- break;
- case CSSPropertyWebkitClipPath:
- if (id == CSSValueNone) {
- validPrimitive = true;
- } else if (value->m_unit == CSSParserValue::Function) {
- parsedValue = parseBasicShape();
- } else if (value->unit() == CSSPrimitiveValue::UnitType::URI) {
- parsedValue = CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::UnitType::URI);
- addProperty(propId, parsedValue.release(), important);
- return true;
- }
- break;
- case CSSPropertyShapeOutside:
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseShapeProperty(propId);
- break;
- case CSSPropertyShapeMargin:
- validPrimitive = validUnit(value, FLength | FPercent | FNonNeg);
- break;
- case CSSPropertyShapeImageThreshold:
- validPrimitive = validUnit(value, FNumber);
- break;
-
- case CSSPropertyTouchAction:
- parsedValue = parseTouchAction();
- break;
-
- case CSSPropertyAlignContent:
- parsedValue = parseContentDistributionOverflowPosition();
- break;
-
- case CSSPropertyAlignSelf:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseItemPositionOverflowPosition(propId, important);
-
- case CSSPropertyAlignItems:
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
- return parseItemPositionOverflowPosition(propId, important);
-
- // 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;
-
- case CSSPropertyScrollSnapPointsX:
- case CSSPropertyScrollSnapPointsY:
- parsedValue = parseScrollSnapPoints();
- break;
- case CSSPropertyScrollSnapCoordinate:
- parsedValue = parseScrollSnapCoordinate();
- break;
- case CSSPropertyScrollSnapDestination:
- parsedValue = parsePosition(m_valueList);
- 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];
-#if ENABLE(OILPAN)
- // Zero initialize the array of raw pointers.
- memset(&values, 0, sizeof(values));
-#endif
- RefPtrWillBeRawPtr<CSSValue> clipValue = nullptr;
- RefPtrWillBeRawPtr<CSSValue> positionYValue = nullptr;
- RefPtrWillBeRawPtr<CSSValue> repeatYValue = nullptr;
- bool foundClip = false;
- int i;
- bool foundPositionCSSProperty = false;
-
- while (m_valueList->current()) {
- CSSParserValue* val = m_valueList->current();
- if (isComma(val)) {
- // 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 = nullptr;
- RefPtrWillBeRawPtr<CSSValue> val2 = nullptr;
- CSSPropertyID propId1, propId2;
- CSSParserValue* parserValue = m_valueList->current();
- // parseFillProperty() may modify m_implicitShorthand, so we MUST reset it
- // before EACH return below.
- if (parserValue && 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;
-}
-
-static bool isValidTransitionPropertyList(CSSValueList* value)
-{
- if (value->length() < 2)
- return true;
- for (auto& property : *value) {
- // FIXME: Shorthand parsing shouldn't add initial to the list since it won't round-trip
- if (property->isInitialValue())
- continue;
- CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(property.get());
- if (primitiveValue->isValueID() && primitiveValue->getValueID() == CSSValueNone)
- return false;
- }
- return true;
-}
-
-bool CSSPropertyParser::parseAnimationShorthand(bool useLegacyparsing, bool important)
-{
- const StylePropertyShorthand& animationProperties = animationShorthandForParsing();
- 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 == animationShorthand().length());
-
- ShorthandScope scope(this, CSSPropertyAnimation);
-
- bool parsedProperty[numProperties] = { false };
- RefPtrWillBeRawPtr<CSSValueList> values[numProperties];
- for (size_t i = 0; i < numProperties; ++i)
- values[i] = CSSValueList::createCommaSeparated();
-
- while (m_valueList->current()) {
- if (consumeComma(m_valueList)) {
- // We hit the end. Fill in all remaining values with the initial value.
- for (size_t i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- values[i]->append(cssValuePool().createImplicitInitialValue());
- parsedProperty[i] = false;
- }
- if (!m_valueList->current())
- break;
- }
-
- bool found = false;
- for (size_t i = 0; i < numProperties; ++i) {
- if (parsedProperty[i])
- continue;
- if (RefPtrWillBeRawPtr<CSSValue> val = parseAnimationProperty(animationProperties.properties()[i], useLegacyparsing)) {
- parsedProperty[i] = found = true;
- values[i]->append(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 (size_t i = 0; i < numProperties; ++i) {
- // If we didn't find the property, set an intial value.
- if (!parsedProperty[i])
- values[i]->append(cssValuePool().createImplicitInitialValue());
-
- addProperty(animationProperties.properties()[i], values[i].release(), important);
- }
-
- return true;
-}
-
-bool CSSPropertyParser::parseTransitionShorthand(bool important)
-{
- const unsigned numProperties = 4;
- const StylePropertyShorthand& shorthand = transitionShorthandForParsing();
- ASSERT(numProperties == shorthand.length());
-
- ShorthandScope scope(this, CSSPropertyTransition);
-
- bool parsedProperty[numProperties] = { false };
- RefPtrWillBeRawPtr<CSSValueList> values[numProperties];
- for (size_t i = 0; i < numProperties; ++i)
- values[i] = CSSValueList::createCommaSeparated();
-
- while (m_valueList->current()) {
- if (consumeComma(m_valueList)) {
- // We hit the end. Fill in all remaining values with the initial value.
- for (size_t i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- values[i]->append(cssValuePool().createImplicitInitialValue());
- parsedProperty[i] = false;
- }
- if (!m_valueList->current())
- break;
- }
-
- bool found = false;
- for (size_t i = 0; i < numProperties; ++i) {
- if (parsedProperty[i])
- continue;
- if (RefPtrWillBeRawPtr<CSSValue> val = parseAnimationProperty(shorthand.properties()[i], false)) {
- parsedProperty[i] = found = true;
- values[i]->append(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;
- }
-
- ASSERT(shorthand.properties()[3] == CSSPropertyTransitionProperty);
- if (!isValidTransitionPropertyList(values[3].get()))
- return false;
-
- // Fill in any remaining properties with the initial value and add
- for (size_t i = 0; i < numProperties; ++i) {
- if (!parsedProperty[i])
- values[i]->append(cssValuePool().createImplicitInitialValue());
- addProperty(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) && (m_parsedCalculation || value->fValue != 0))) {
- 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 || validUnit(value, FPositiveInteger)) {
- RefPtrWillBeRawPtr<CSSValue> parsedValue = parseValidPrimitive(value->id, value);
- m_valueList->next();
- return parsedValue;
- }
- return nullptr;
-}
-
-bool CSSPropertyParser::parseColumnsShorthand(bool important)
-{
- RefPtrWillBeRawPtr<CSSValue> columnWidth = nullptr;
- RefPtrWillBeRawPtr<CSSValue> columnCount = nullptr;
-
- for (unsigned propertiesParsed = 0; CSSParserValue* value = m_valueList->current(); propertiesParsed++) {
- if (propertiesParsed >= 2)
- return false; // Too many values for this shorthand. Invalid declaration.
- if (value->id == CSSValueAuto) {
- // Skip 'auto' as we will use it for initial value if no width/count was parsed.
- m_valueList->next();
- } 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 (!columnWidth)
- columnWidth = cssValuePool().createIdentifierValue(CSSValueAuto);
- addProperty(CSSPropertyWebkitColumnWidth, columnWidth, important);
- if (!columnCount)
- columnCount = cssValuePool().createIdentifierValue(CSSValueAuto);
- addProperty(CSSPropertyWebkitColumnCount, columnCount, important);
- 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);
- 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);
- 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);
- 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);
- 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;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseScrollSnapPoints()
-{
- CSSParserValue* value = m_valueList->current();
-
- if (value->id == CSSValueNone) {
- m_valueList->next();
- return cssValuePool().createIdentifierValue(CSSValueNone);
- }
-
- if (value->m_unit == CSSParserValue::Function && value->function->id == CSSValueRepeat) {
- // The spec defines the following grammar: repeat( <length>)
- CSSParserValueList* arguments = value->function->args.get();
- if (!arguments || arguments->size() != 1)
- return nullptr;
-
- CSSParserValue* repeatValue = arguments->valueAt(0);
- if (validUnit(repeatValue, FNonNeg | FLength | FPercent) && (m_parsedCalculation || repeatValue->fValue > 0)) {
- RefPtrWillBeRawPtr<CSSFunctionValue> result = CSSFunctionValue::create(CSSValueRepeat);
- result->append(parseValidPrimitive(repeatValue->id, repeatValue));
- m_valueList->next();
- return result.release();
- }
- }
-
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseScrollSnapCoordinate()
-{
- if (m_valueList->current()->id == CSSValueNone) {
- m_valueList->next();
- return cssValuePool().createIdentifierValue(CSSValueNone);
- }
-
- return parsePositionList(m_valueList);
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parsePage()
-{
- CSSParserValue* value = m_valueList->current();
- m_valueList->next();
- ASSERT(value);
-
- if (value->id == CSSValueAuto)
- return cssValuePool().createIdentifierValue(value->id);
- if (value->m_unit == CSSParserValue::Identifier)
- return createPrimitiveCustomIdentValue(value);
- return nullptr;
-}
-
-// <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ]
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseSize()
-{
- CSSParserValue* value = m_valueList->current();
- ASSERT(value);
-
- RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated();
-
- // First parameter.
- SizeParameterType paramType = parseSizeParameter(parsedValues.get(), value, None);
- if (paramType == None)
- return nullptr;
- value = m_valueList->next();
-
- // Second parameter, if any.
- if (value) {
- paramType = parseSizeParameter(parsedValues.get(), value, paramType);
- if (paramType == None)
- return nullptr;
- m_valueList->next();
- }
-
- return parsedValues.release();
-}
-
-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 for simpler StyleBuilder handling
- 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> ]+ | none, but none is handled in parseValue
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseQuotes()
-{
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated();
- while (CSSParserValue* val = m_valueList->current()) {
- RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr;
- if (val->unit() != CSSPrimitiveValue::UnitType::String)
- return nullptr;
- parsedValue = createPrimitiveStringValue(val);
- values->append(parsedValue.release());
- m_valueList->next();
- }
- if (values->length() && values->length() % 2 == 0)
- return values.release();
- return nullptr;
-}
-
-// [ <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
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseContent()
-{
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated();
-
- while (CSSParserValue* val = m_valueList->current()) {
- RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr;
- if (val->unit() == CSSPrimitiveValue::UnitType::URI) {
- // url
- parsedValue = createCSSImageValueWithReferrer(val->string, completeURL(val->string));
- } else if (val->m_unit == CSSParserValue::Function) {
- // attr(X) | counter(X [,Y]) | counters(X, Y, [,Z]) | -webkit-gradient(...)
- CSSParserValueList* args = val->function->args.get();
- if (!args)
- return nullptr;
- if (val->function->id == CSSValueAttr) {
- parsedValue = parseAttr(args);
- } else if (val->function->id == CSSValueCounter) {
- parsedValue = parseCounterContent(args, false);
- } else if (val->function->id == CSSValueCounters) {
- parsedValue = parseCounterContent(args, true);
- } else if (val->function->id == CSSValueWebkitImageSet) {
- parsedValue = parseImageSet(m_valueList);
- } else if (isGeneratedImageValue(val)) {
- if (!parseGeneratedImage(m_valueList, parsedValue))
- return nullptr;
- }
- } else if (val->m_unit == CSSParserValue::Identifier) {
- 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::UnitType::String) {
- parsedValue = createPrimitiveStringValue(val);
- }
- if (!parsedValue)
- return nullptr;
- values->append(parsedValue.release());
- m_valueList->next();
- }
-
- return values.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAttr(CSSParserValueList* args)
-{
- if (args->size() != 1)
- return nullptr;
-
- CSSParserValue* a = args->current();
-
- if (a->m_unit != CSSParserValue::Identifier)
- 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();
-
- RefPtrWillBeRawPtr<CSSFunctionValue> attrValue = CSSFunctionValue::create(CSSValueAttr);
- attrValue->append(CSSPrimitiveValue::create(attrName, CSSPrimitiveValue::UnitType::CustomIdentifier));
- return attrValue.release();
-}
-
-bool CSSPropertyParser::acceptQuirkyColors(CSSPropertyID propertyId) const
-{
- if (!inQuirksMode())
- return false;
- switch (propertyId) {
- case CSSPropertyBackgroundColor:
- case CSSPropertyBorderBottomColor:
- case CSSPropertyBorderLeftColor:
- case CSSPropertyBorderRightColor:
- case CSSPropertyBorderTopColor:
- return !inShorthand() || m_currentShorthand == CSSPropertyBorderColor;
- case CSSPropertyColor:
- return true;
- default:
- break;
- }
- return false;
-}
-
-bool CSSPropertyParser::isColorKeyword(CSSValueID id)
-{
- // Named colors and color keywords:
- //
- // <named-color>
- // 'aqua', 'black', 'blue', ..., 'yellow' (CSS3: "basic color keywords")
- // 'aliceblue', ..., 'yellowgreen' (CSS3: "extended color keywords")
- // 'transparent'
- //
- // 'currentcolor'
- //
- // <deprecated-system-color>
- // 'ActiveBorder', ..., 'WindowText'
- //
- // WebKit proprietary/internal:
- // '-webkit-link'
- // '-webkit-activelink'
- // '-internal-active-list-box-selection'
- // '-internal-active-list-box-selection-text'
- // '-internal-inactive-list-box-selection'
- // '-internal-inactive-list-box-selection-text'
- // '-webkit-focus-ring-color'
- // '-webkit-text'
- //
- return (id >= CSSValueAqua && id <= CSSValueWebkitText)
- || (id >= CSSValueAliceblue && id <= CSSValueYellowgreen)
- || id == CSSValueMenu;
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseColor(const CSSParserValue* value, bool acceptQuirkyColors)
-{
- CSSValueID id = value->id;
- if (isColorKeyword(id)) {
- if (!isValueAllowedInMode(id, m_context.mode()))
- return nullptr;
- if (id == CSSValueWebkitText && m_context.useCounter())
- m_context.useCounter()->count(UseCounter::WebkitTextInColorProperty);
- return cssValuePool().createIdentifierValue(id);
- }
- RGBA32 c = Color::transparent;
- if (!parseColorFromValue(value, c, acceptQuirkyColors))
- return nullptr;
- return cssValuePool().createColorValue(c);
-}
-
-bool CSSPropertyParser::parseFillImage(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value)
-{
- if (valueList->current()->id == CSSValueNone) {
- value = cssValuePool().createIdentifierValue(CSSValueNone);
- return true;
- }
- if (valueList->current()->unit() == CSSPrimitiveValue::UnitType::URI) {
- value = createCSSImageValueWithReferrer(valueList->current()->string, completeURL(valueList->current()->string));
- return true;
- }
-
- if (isGeneratedImageValue(valueList->current()))
- return parseGeneratedImage(valueList, value);
-
- if (valueList->current()->m_unit == CSSParserValue::Function && valueList->current()->function->id == CSSValueWebkitImageSet) {
- value = parseImageSet(m_valueList);
- 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::UnitType::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::UnitType::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, Units unitless)
-{
- 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::UnitType::Percentage);
- }
- if (validUnit(valueList->current(), FPercent | FLength | unitless)) {
- 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 = CSSValuePair::create(parsedValue1, parsedValue2, CSSValuePair::DropIdenticalValues);
- value2 = CSSValuePair::create(value3, value4, CSSValuePair::DropIdenticalValues);
-
- 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 = CSSValuePair::create(cssValuePool().createIdentifierValue(firstPositionKeyword), cssValuePool().createValue(50, CSSPrimitiveValue::UnitType::Percentage), CSSValuePair::DropIdenticalValues);
- value2 = CSSValuePair::create(parsedValue2, value3, CSSValuePair::DropIdenticalValues);
- } else if (ident3 == CSSValueCenter) {
- if (isFillPositionKeyword(ident2))
- return;
-
- secondPositionKeyword = CSSValueTop;
- if (ident1 == CSSValueTop || ident1 == CSSValueBottom) {
- secondPositionKeyword = CSSValueLeft;
- swapNeeded = true;
- }
- value1 = CSSValuePair::create(parsedValue1, parsedValue2, CSSValuePair::DropIdenticalValues);
- value2 = CSSValuePair::create(cssValuePool().createIdentifierValue(secondPositionKeyword), cssValuePool().createValue(50, CSSPrimitiveValue::UnitType::Percentage), CSSValuePair::DropIdenticalValues);
- } else {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> firstPositionValue = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> secondPositionValue = nullptr;
-
- 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::UnitType::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::UnitType::Percentage);
- }
-
- if (isValueConflictingWithCurrentEdge(ident1, secondPositionKeyword))
- return;
-
- value1 = CSSValuePair::create(parsedValue1, firstPositionValue, CSSValuePair::DropIdenticalValues);
- value2 = CSSValuePair::create(cssValuePool().createIdentifierValue(secondPositionKeyword), secondPositionValue, CSSValuePair::DropIdenticalValues);
- }
-
- if (ident1 == CSSValueTop || ident1 == CSSValueBottom || swapNeeded)
- value1.swap(value2);
-
-#if ENABLE(ASSERT)
- const CSSValuePair& first = toCSSValuePair(*value1);
- const CSSValuePair& second = toCSSValuePair(*value2);
- ident1 = toCSSPrimitiveValue(first.first()).getValueID();
- ident2 = toCSSPrimitiveValue(second.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, Units unitless)
-{
- unsigned numberOfValues = 0;
- for (unsigned i = valueList->currentIndex(); i < valueList->size(); ++i, ++numberOfValues) {
- CSSParserValue* current = valueList->valueAt(i);
- if (!current || isComma(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, unitless);
- 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, Units unitless)
-{
- // 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, ResolveValuesAsPercent, unitless);
- 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 (value && isComma(value))
- value = 0;
-
- if (value) {
- value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag, ResolveValuesAsPercent, unitless);
- 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::UnitType::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 unresolvedProperty)
-{
- CSSParserValue* value = m_valueList->current();
- m_valueList->next();
-
- if (value->id == CSSValueContain || value->id == CSSValueCover)
- return cssValuePool().createIdentifierValue(value->id);
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1 = nullptr;
-
- if (value->id == CSSValueAuto)
- parsedValue1 = cssValuePool().createIdentifierValue(CSSValueAuto);
- else {
- if (!validUnit(value, FLength | FPercent))
- return nullptr;
- parsedValue1 = createPrimitiveNumericValue(value);
- }
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2 = nullptr;
- value = m_valueList->current();
- if (value) {
- if (value->id == CSSValueAuto) {
- // `auto' is the default
- m_valueList->next();
- } else if (validUnit(value, FLength | FPercent)) {
- parsedValue2 = createPrimitiveNumericValue(value);
- m_valueList->next();
- }
- } else if (unresolvedProperty == CSSPropertyAliasWebkitBackgroundSize) {
- // 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 CSSValuePair::create(parsedValue1.release(), parsedValue2.release(), CSSValuePair::KeepIdenticalValues);
-}
-
-bool CSSPropertyParser::parseFillProperty(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2,
- RefPtrWillBeRawPtr<CSSValue>& retValue1, RefPtrWillBeRawPtr<CSSValue>& retValue2)
-{
- // We initially store the first value in value/value2, and only create
- // CSSValueLists if we have more values.
- RefPtrWillBeRawPtr<CSSValueList> values = nullptr;
- RefPtrWillBeRawPtr<CSSValueList> values2 = nullptr;
- RefPtrWillBeRawPtr<CSSValue> value = nullptr;
- RefPtrWillBeRawPtr<CSSValue> value2 = nullptr;
-
- retValue1 = retValue2 = nullptr;
- propId1 = resolveCSSPropertyID(propId);
- propId2 = propId1;
- 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 (true) {
- RefPtrWillBeRawPtr<CSSValue> currValue = nullptr;
- RefPtrWillBeRawPtr<CSSValue> currValue2 = nullptr;
-
- Units unitless = FUnknown;
- CSSParserValue* val = m_valueList->current();
- ASSERT(val);
-
- switch (propId) {
- case CSSPropertyBackgroundColor:
- currValue = parseColor(val);
- 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, 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))) {
- if (val->id == CSSValueWebkitText && m_context.useCounter())
- m_context.useCounter()->count(UseCounter::WebkitTextInClipProperty);
- currValue = cssValuePool().createIdentifierValue(val->id);
- m_valueList->next();
- }
- break;
- case CSSPropertyBackgroundClip:
- if (parseBackgroundClip(val, currValue)) {
- if (val->id == CSSValueWebkitText && m_context.useCounter())
- m_context.useCounter()->count(UseCounter::WebkitTextInClipProperty);
- 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:
- if (!inShorthand())
- unitless = FUnitlessQuirk;
- // fall-through
- case CSSPropertyWebkitMaskPosition:
- parseFillPosition(m_valueList, currValue, currValue2, unitless);
- // parseFillPosition advances the m_valueList pointer.
- break;
- case CSSPropertyBackgroundPositionX:
- case CSSPropertyWebkitMaskPositionX: {
- currValue = parseFillPositionX(m_valueList);
- if (currValue)
- m_valueList->next();
- break;
- }
- case CSSPropertyBackgroundPositionY:
- case CSSPropertyWebkitMaskPositionY: {
- currValue = parseFillPositionY(m_valueList);
- 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 CSSPropertyAliasWebkitBackgroundSize:
- case CSSPropertyWebkitMaskSize: {
- currValue = parseFillSize(propId);
- break;
- }
- case CSSPropertyMaskSourceType: {
- ASSERT(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 (!m_valueList->current())
- break;
- if (!consumeComma(m_valueList) || !m_valueList->current())
- return false;
- }
-
- if (values) {
- ASSERT(values->length());
- retValue1 = values.release();
- if (values2) {
- ASSERT(values2->length());
- retValue2 = values2.release();
- }
- } else {
- ASSERT(value);
- retValue1 = value.release();
- retValue2 = value2.release();
- }
-
- return true;
-}
-
-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(bool allowQuotedName)
-{
- CSSParserValue* value = m_valueList->current();
-
- if (value->id == CSSValueNone)
- return cssValuePool().createIdentifierValue(CSSValueNone);
-
- if (value->m_unit == CSSParserValue::Identifier)
- return createPrimitiveCustomIdentValue(value);
-
- if (allowQuotedName && value->unit() == CSSPrimitiveValue::UnitType::String) {
- // Legacy support for strings in prefixed animations
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::QuotedAnimationName);
- if (equalIgnoringCase(value->string, "none"))
- return cssValuePool().createIdentifierValue(CSSValueNone);
- return createPrimitiveCustomIdentValue(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()
-{
- CSSParserValue* value = m_valueList->current();
- if (value->m_unit != CSSParserValue::Identifier)
- return nullptr;
- CSSPropertyID property = unresolvedCSSPropertyID(value->string);
- if (property) {
- ASSERT(CSSPropertyMetadata::isEnabledProperty(property));
- return cssValuePool().createIdentifierValue(property);
- }
- if (value->id == CSSValueNone)
- return cssValuePool().createIdentifierValue(CSSValueNone);
- if (value->id == CSSValueInitial || value->id == CSSValueInherit)
- return nullptr;
- return createPrimitiveCustomIdentValue(value);
-}
-
-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;
- return consumeComma(args);
-}
-
-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)
- return cssValuePool().createIdentifierValue(value->id);
-
- // We must be a function.
- if (value->m_unit != CSSParserValue::Function)
- return nullptr;
-
- CSSParserValueList* args = value->function->args.get();
-
- if (value->function->id == CSSValueSteps) {
- // 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::End;
-
- CSSParserValue* v = args->current();
- if (!validUnit(v, FInteger))
- return nullptr;
- numSteps = clampTo<int>(v->fValue);
- if (numSteps < 1)
- return nullptr;
-
- if (args->next()) {
- // There is a comma so we need to parse the second value
- if (!consumeComma(args))
- return nullptr;
- switch (args->current()->id) {
- case CSSValueMiddle:
- if (!RuntimeEnabledFeatures::webAnimationsAPIEnabled())
- return nullptr;
- stepAtPosition = StepsTimingFunction::Middle;
- break;
- case CSSValueStart:
- stepAtPosition = StepsTimingFunction::Start;
- break;
- case CSSValueEnd:
- stepAtPosition = StepsTimingFunction::End;
- break;
- default:
- return nullptr;
- }
- }
-
- return CSSStepsTimingFunctionValue::create(numSteps, stepAtPosition);
- }
-
- if (value->function->id == CSSValueCubicBezier) {
- // 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;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationProperty(CSSPropertyID propId, bool useLegacyParsing)
-{
- RefPtrWillBeRawPtr<CSSValue> value = nullptr;
- switch (propId) {
- case CSSPropertyAnimationDelay:
- case CSSPropertyTransitionDelay:
- value = parseAnimationDelay();
- break;
- case CSSPropertyAnimationDirection:
- value = parseAnimationDirection();
- break;
- case CSSPropertyAnimationDuration:
- case CSSPropertyTransitionDuration:
- value = parseAnimationDuration();
- break;
- case CSSPropertyAnimationFillMode:
- value = parseAnimationFillMode();
- break;
- case CSSPropertyAnimationIterationCount:
- value = parseAnimationIterationCount();
- break;
- case CSSPropertyAnimationName:
- value = parseAnimationName(useLegacyParsing);
- break;
- case CSSPropertyAnimationPlayState:
- value = parseAnimationPlayState();
- break;
- case CSSPropertyTransitionProperty:
- value = parseAnimationProperty();
- break;
- case CSSPropertyAnimationTimingFunction:
- case CSSPropertyTransitionTimingFunction:
- value = parseAnimationTimingFunction();
- break;
- default:
- ASSERT_NOT_REACHED();
- return nullptr;
- }
-
- if (value)
- m_valueList->next();
- return value.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseAnimationPropertyList(CSSPropertyID propId, bool useLegacyParsing)
-{
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
- while (true) {
- RefPtrWillBeRawPtr<CSSValue> value = parseAnimationProperty(propId, useLegacyParsing);
- if (!value)
- return nullptr;
- list->append(value.release());
- if (!m_valueList->current())
- break;
- if (!consumeComma(m_valueList) || !m_valueList->current())
- return nullptr;
- }
- if (propId == CSSPropertyTransitionProperty && !isValidTransitionPropertyList(list.get()))
- return nullptr;
- ASSERT(list->length());
- return list.release();
-}
-
-static inline bool isCSSWideKeyword(const CSSParserValue& value)
-{
- return value.id == CSSValueInitial || value.id == CSSValueInherit || value.id == CSSValueUnset || value.id == CSSValueDefault;
-}
-
-static inline bool isValidCustomIdentForGridPositions(const CSSParserValue& value)
-{
- // FIXME: we need a more general solution for <custom-ident> in all properties.
- return value.m_unit == CSSParserValue::Identifier && value.id != CSSValueSpan && value.id != CSSValueAuto && !isCSSWideKeyword(value);
-}
-
-// The function parses [ <integer> || <custom-ident> ] in <grid-line> (which can be stand alone or with 'span').
-bool CSSPropertyParser::parseIntegerOrCustomIdentFromGridPosition(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 && isValidCustomIdentForGridPositions(*value)) {
- gridLineName = createPrimitiveCustomIdentValue(m_valueList->current());
- m_valueList->next();
- }
- return true;
- }
-
- if (isValidCustomIdentForGridPositions(*value)) {
- gridLineName = createPrimitiveCustomIdentValue(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);
- }
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> numericValue = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> gridLineName = nullptr;
- bool hasSeenSpanKeyword = false;
-
- if (parseIntegerOrCustomIdentFromGridPosition(numericValue, gridLineName)) {
- value = m_valueList->current();
- if (value && value->id == CSSValueSpan) {
- hasSeenSpanKeyword = true;
- m_valueList->next();
- }
- } else if (value->id == CSSValueSpan) {
- hasSeenSpanKeyword = true;
- if (CSSParserValue* nextValue = m_valueList->next()) {
- if (!isForwardSlashOperator(nextValue) && !parseIntegerOrCustomIdentFromGridPosition(numericValue, gridLineName))
- return nullptr;
- }
- }
-
- // 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;
-
- // For the <custom-ident> case.
- if (gridLineName && !numericValue && !hasSeenSpanKeyword)
- return cssValuePool().createValue(gridLineName->getStringValue(), CSSPrimitiveValue::UnitType::CustomIdentifier);
-
- 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)->isCustomIdent())
- 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 = nullptr;
- 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::parseGridTemplateRowsAndAreas(PassRefPtrWillBeRawPtr<CSSValue> templateColumns, bool important)
-{
- NamedGridAreaMap gridAreaMap;
- size_t rowCount = 0;
- size_t columnCount = 0;
- bool trailingIdentWasAdded = false;
- RefPtrWillBeRawPtr<CSSValueList> templateRows = CSSValueList::createSpaceSeparated();
-
- // At least template-areas strings must be defined.
- if (!m_valueList->current())
- return false;
-
- while (m_valueList->current()) {
- // Handle leading <custom-ident>*.
- if (!parseGridLineNames(*m_valueList, *templateRows, trailingIdentWasAdded ? toCSSGridLineNamesValue(templateRows->item(templateRows->length() - 1)) : nullptr))
- return false;
-
- // Handle a template-area's row.
- if (!parseGridTemplateAreasRow(gridAreaMap, rowCount, columnCount))
- return false;
- ++rowCount;
-
- // Handle template-rows's track-size.
- if (m_valueList->current() && m_valueList->current()->unit() != CSSPrimitiveValue::UnitType::String) {
- RefPtrWillBeRawPtr<CSSValue> value = parseGridTrackSize(*m_valueList);
- if (!value)
- return false;
- templateRows->append(value);
- } else {
- templateRows->append(cssValuePool().createIdentifierValue(CSSValueAuto));
- }
-
- // This will handle the trailing/leading <custom-ident>* in the grammar.
- if (!parseGridLineNames(*m_valueList, *templateRows))
- return false;
- trailingIdentWasAdded = templateRows->item(templateRows->length() - 1)->isGridLineNamesValue();
- }
-
- // [<track-list> /]?
- if (templateColumns)
- addProperty(CSSPropertyGridTemplateColumns, templateColumns, important);
- else
- addProperty(CSSPropertyGridTemplateColumns, cssValuePool().createIdentifierValue(CSSValueNone), important);
-
- // [<line-names>? <string> [<track-size> <line-names>]? ]+
- RefPtrWillBeRawPtr<CSSValue> templateAreas = CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount);
- addProperty(CSSPropertyGridTemplateAreas, templateAreas.release(), important);
- addProperty(CSSPropertyGridTemplateRows, templateRows.release(), important);
-
- return true;
-}
-
-
-bool CSSPropertyParser::parseGridTemplateShorthand(bool important)
-{
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
-
- ShorthandScope scope(this, CSSPropertyGridTemplate);
- ASSERT(gridTemplateShorthand().length() == 3);
-
- // At least "none" must be defined.
- if (!m_valueList->current())
- return false;
-
- bool firstValueIsNone = m_valueList->current()->id == CSSValueNone;
-
- // 1- 'none' case.
- if (firstValueIsNone && !m_valueList->next()) {
- addProperty(CSSPropertyGridTemplateColumns, cssValuePool().createIdentifierValue(CSSValueNone), important);
- addProperty(CSSPropertyGridTemplateRows, cssValuePool().createIdentifierValue(CSSValueNone), important);
- addProperty(CSSPropertyGridTemplateAreas, cssValuePool().createIdentifierValue(CSSValueNone), important);
- return true;
- }
-
- unsigned index = 0;
- RefPtrWillBeRawPtr<CSSValue> columnsValue = nullptr;
- if (firstValueIsNone) {
- columnsValue = cssValuePool().createIdentifierValue(CSSValueNone);
- } else {
- columnsValue = parseGridTrackList();
- }
-
- // 2- <grid-template-columns> / <grid-template-columns> syntax.
- if (columnsValue) {
- if (!(m_valueList->current() && isForwardSlashOperator(m_valueList->current()) && m_valueList->next()))
- return false;
- index = m_valueList->currentIndex();
- if (RefPtrWillBeRawPtr<CSSValue> rowsValue = parseGridTrackList()) {
- if (m_valueList->current())
- return false;
- addProperty(CSSPropertyGridTemplateColumns, columnsValue, important);
- addProperty(CSSPropertyGridTemplateRows, rowsValue, important);
- addProperty(CSSPropertyGridTemplateAreas, cssValuePool().createIdentifierValue(CSSValueNone), important);
- return true;
- }
- }
-
-
- // 3- [<track-list> /]? [<line-names>? <string> [<track-size> <line-names>]? ]+ syntax.
- // The template-columns <track-list> can't be 'none'.
- if (firstValueIsNone)
- return false;
- // It requires to rewind parsing due to previous syntax failures.
- m_valueList->setCurrentIndex(index);
- return parseGridTemplateRowsAndAreas(columnsValue, important);
-}
-
-bool CSSPropertyParser::parseGridShorthand(bool important)
-{
- ShorthandScope scope(this, CSSPropertyGrid);
- ASSERT(shorthandForProperty(CSSPropertyGrid).length() == 6);
-
- // 1- <grid-template>
- if (parseGridTemplateShorthand(important)) {
- // It can only be specified the explicit or the implicit grid properties in a single grid declaration.
- // The sub-properties not specified are set to their initial value, as normal for shorthands.
- addProperty(CSSPropertyGridAutoFlow, cssValuePool().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridAutoColumns, cssValuePool().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridAutoRows, cssValuePool().createImplicitInitialValue(), important);
- return true;
- }
-
- // Need to rewind parsing to explore the alternative syntax of this shorthand.
- m_valueList->setCurrentIndex(0);
-
- // 2- <grid-auto-flow> [ <grid-auto-columns> [ / <grid-auto-rows> ]? ]
- if (!parseValue(CSSPropertyGridAutoFlow, important))
- return false;
-
- RefPtrWillBeRawPtr<CSSValue> autoColumnsValue = nullptr;
- RefPtrWillBeRawPtr<CSSValue> autoRowsValue = nullptr;
-
- if (m_valueList->current()) {
- autoColumnsValue = parseGridTrackSize(*m_valueList);
- if (!autoColumnsValue)
- return false;
- if (m_valueList->current()) {
- if (!isForwardSlashOperator(m_valueList->current()) || !m_valueList->next())
- return false;
- autoRowsValue = parseGridTrackSize(*m_valueList);
- if (!autoRowsValue)
- return false;
- }
- if (m_valueList->current())
- return false;
- } else {
- // Other omitted values are set to their initial values.
- autoColumnsValue = cssValuePool().createImplicitInitialValue();
- autoRowsValue = cssValuePool().createImplicitInitialValue();
- }
-
- // if <grid-auto-rows> value is omitted, it is set to the value specified for grid-auto-columns.
- if (!autoRowsValue)
- autoRowsValue = autoColumnsValue;
-
- addProperty(CSSPropertyGridAutoColumns, autoColumnsValue, important);
- addProperty(CSSPropertyGridAutoRows, autoRowsValue, important);
-
- // It can only be specified the explicit or the implicit grid properties in a single grid declaration.
- // The sub-properties not specified are set to their initial value, as normal for shorthands.
- addProperty(CSSPropertyGridTemplateColumns, cssValuePool().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridTemplateRows, cssValuePool().createImplicitInitialValue(), important);
- addProperty(CSSPropertyGridTemplateAreas, cssValuePool().createImplicitInitialValue(), 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 = nullptr;
- if (!parseSingleGridAreaLonghand(columnStartValue))
- return false;
-
- RefPtrWillBeRawPtr<CSSValue> rowEndValue = nullptr;
- if (!parseSingleGridAreaLonghand(rowEndValue))
- return false;
-
- RefPtrWillBeRawPtr<CSSValue> columnEndValue = nullptr;
- 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;
-}
-
-static inline bool isClosingBracket(const CSSParserValue& value)
-{
- return value.m_unit == CSSParserValue::Operator && value.iValue == ']';
-}
-
-bool CSSPropertyParser::parseGridLineNames(CSSParserValueList& inputList, CSSValueList& valueList, CSSGridLineNamesValue* previousNamedAreaTrailingLineNames)
-{
- if (!inputList.current() || inputList.current()->m_unit != CSSParserValue::Operator || inputList.current()->iValue != '[')
- return true;
-
- // Skip '['
- inputList.next();
-
- RefPtrWillBeRawPtr<CSSGridLineNamesValue> lineNames = previousNamedAreaTrailingLineNames;
- if (!lineNames)
- lineNames = CSSGridLineNamesValue::create();
-
- while (CSSParserValue* identValue = inputList.current()) {
- if (isClosingBracket(*identValue))
- break;
-
- if (!isValidCustomIdentForGridPositions(*identValue))
- return false;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> lineName = createPrimitiveCustomIdentValue(identValue);
- lineNames->append(lineName.release());
- inputList.next();
- }
-
- if (!inputList.current() || !isClosingBracket(*inputList.current()))
- return false;
-
- if (!previousNamedAreaTrailingLineNames)
- valueList.append(lineNames.release());
-
- // Consume ']'
- inputList.next();
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridTrackList()
-{
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
-
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueNone) {
- m_valueList->next();
- return cssValuePool().createIdentifierValue(CSSValueNone);
- }
-
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated();
- // Handle leading <custom-ident>*.
- if (!parseGridLineNames(*m_valueList, *values))
- return nullptr;
-
- bool seenTrackSizeOrRepeatFunction = false;
- while (CSSParserValue* currentValue = m_valueList->current()) {
- if (isForwardSlashOperator(currentValue))
- break;
- if (currentValue->m_unit == CSSParserValue::Function && currentValue->function->id == CSSValueRepeat) {
- if (!parseGridTrackRepeatFunction(*values))
- return nullptr;
- seenTrackSizeOrRepeatFunction = true;
- } else {
- RefPtrWillBeRawPtr<CSSValue> value = parseGridTrackSize(*m_valueList);
- if (!value)
- return nullptr;
- values->append(value);
- seenTrackSizeOrRepeatFunction = true;
- }
- // This will handle the trailing <custom-ident>* in the grammar.
- if (!parseGridLineNames(*m_valueList, *values))
- return nullptr;
- }
-
- // We should have found a <track-size> or else it is not a valid <track-list>
- if (!seenTrackSizeOrRepeatFunction)
- return nullptr;
-
- return values;
-}
-
-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(arguments->valueAt(0)->fValue > 0);
- size_t repetitions = clampTo<size_t>(arguments->valueAt(0)->fValue, 0, kGridMaxTracks);
-
- RefPtrWillBeRawPtr<CSSValueList> repeatedValues = CSSValueList::createSpaceSeparated();
- arguments->next(); // Skip the repetition count.
- arguments->next(); // Skip the comma.
-
- // Handle leading <custom-ident>*.
- if (!parseGridLineNames(*arguments, *repeatedValues))
- return false;
-
- size_t numberOfTracks = 0;
- while (arguments->current()) {
- RefPtrWillBeRawPtr<CSSValue> trackSize = parseGridTrackSize(*arguments);
- if (!trackSize)
- return false;
-
- repeatedValues->append(trackSize);
- ++numberOfTracks;
-
- // This takes care of any trailing <custom-ident>* in the grammar.
- if (!parseGridLineNames(*arguments, *repeatedValues))
- return false;
- }
-
- // We should have found at least one <track-size> or else it is not a valid <track-list>.
- if (!numberOfTracks)
- return false;
-
- // We clamp the number of repetitions to a multiple of the repeat() track list's size, while staying below the max
- // grid size.
- repetitions = std::min(repetitions, kGridMaxTracks / numberOfTracks);
-
- for (size_t i = 0; i < repetitions; ++i) {
- for (size_t j = 0; j < repeatedValues->length(); ++j)
- list.append(repeatedValues->item(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->m_unit == CSSParserValue::Function && currentValue->function->id == CSSValueMinmax) {
- // 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<CSSFunctionValue> result = CSSFunctionValue::create(CSSValueMinmax);
- result->append(minTrackBreadth);
- result->append(maxTrackBreadth);
- return result.release();
- }
-
- return parseGridBreadth(currentValue);
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseGridBreadth(CSSParserValue* currentValue)
-{
- if (currentValue->id == CSSValueMinContent || currentValue->id == CSSValueMaxContent || currentValue->id == CSSValueAuto)
- return cssValuePool().createIdentifierValue(currentValue->id);
-
- if (currentValue->unit() == CSSPrimitiveValue::UnitType::Fraction) {
- double flexValue = currentValue->fValue;
-
- // Fractional unit is a non-negative dimension.
- if (flexValue <= 0)
- return nullptr;
-
- return cssValuePool().createValue(flexValue, CSSPrimitiveValue::UnitType::Fraction);
- }
-
- if (!validUnit(currentValue, FNonNeg | FLength | FPercent))
- return nullptr;
-
- return createPrimitiveNumericValue(currentValue);
-}
-
-static Vector<String> parseGridTemplateAreasColumnNames(const String& gridRowNames)
-{
- ASSERT(!gridRowNames.isEmpty());
- Vector<String> columnNames;
- // Using StringImpl to avoid checks and indirection in every call to String::operator[].
- StringImpl& text = *gridRowNames.impl();
-
- StringBuilder areaName;
- for (unsigned i = 0; i < text.length(); ++i) {
- if (text[i] == ' ') {
- if (!areaName.isEmpty()) {
- columnNames.append(areaName.toString());
- areaName.clear();
- }
- continue;
- }
- if (text[i] == '.') {
- if (areaName == ".")
- continue;
- if (!areaName.isEmpty()) {
- columnNames.append(areaName.toString());
- areaName.clear();
- }
- } else {
- if (areaName == ".") {
- columnNames.append(areaName.toString());
- areaName.clear();
- }
- }
-
- areaName.append(text[i]);
- }
-
- if (!areaName.isEmpty())
- columnNames.append(areaName.toString());
-
- return columnNames;
-}
-
-bool CSSPropertyParser::parseGridTemplateAreasRow(NamedGridAreaMap& gridAreaMap, const size_t rowCount, size_t& columnCount)
-{
- CSSParserValue* currentValue = m_valueList->current();
- if (!currentValue || currentValue->unit() != CSSPrimitiveValue::UnitType::String)
- return false;
-
- String gridRowNames = currentValue->string;
- if (gridRowNames.isEmpty() || gridRowNames.containsOnlyWhitespace())
- return false;
-
- Vector<String> columnNames = parseGridTemplateAreasColumnNames(gridRowNames);
- 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 false;
- }
-
- 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.resolvedFinalPosition.next().toInt())
- return false;
-
- // 2. The new area starts at the same position as the previously parsed area.
- if (currentCol != gridCoordinate.columns.resolvedInitialPosition.toInt())
- return false;
-
- // 3. The new area ends at the same position as the previously parsed area.
- if (lookAheadCol != gridCoordinate.columns.resolvedFinalPosition.toInt())
- return false;
-
- ++gridCoordinate.rows.resolvedFinalPosition;
- }
- currentCol = lookAheadCol;
- }
-
- m_valueList->next();
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridTemplateAreas()
-{
- if (m_valueList->current() && m_valueList->current()->id == CSSValueNone) {
- m_valueList->next();
- return cssValuePool().createIdentifierValue(CSSValueNone);
- }
-
- NamedGridAreaMap gridAreaMap;
- size_t rowCount = 0;
- size_t columnCount = 0;
-
- while (m_valueList->current()) {
- if (!parseGridTemplateAreasRow(gridAreaMap, rowCount, columnCount))
- return nullptr;
- ++rowCount;
- }
-
- if (!rowCount || !columnCount)
- return nullptr;
-
- return CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount);
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridAutoFlow(CSSParserValueList& list)
-{
- // [ row | column ] || dense
- ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled());
-
- CSSParserValue* value = list.current();
- if (!value)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated();
-
- // First parameter.
- CSSValueID firstId = value->id;
- if (firstId != CSSValueRow && firstId != CSSValueColumn && firstId != CSSValueDense)
- return nullptr;
- parsedValues->append(cssValuePool().createIdentifierValue(firstId));
-
- // Second parameter, if any.
- value = list.next();
- if (value) {
- switch (firstId) {
- case CSSValueRow:
- case CSSValueColumn:
- if (value->id != CSSValueDense)
- return parsedValues;
- break;
- case CSSValueDense:
- if (value->id != CSSValueRow && value->id != CSSValueColumn)
- return parsedValues;
- break;
- default:
- return parsedValues;
- }
- parsedValues->append(cssValuePool().createIdentifierValue(value->id));
- list.next();
- }
-
- return parsedValues;
-}
-
-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->m_unit != CSSParserValue::Identifier)
- return nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> identifier = createPrimitiveCustomIdentValue(i);
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> separator = nullptr;
- if (!counters)
- separator = cssValuePool().createValue(String(), CSSPrimitiveValue::UnitType::CustomIdentifier);
- else {
- args->next();
- if (!consumeComma(args))
- return nullptr;
-
- i = args->current();
- if (i->unit() != CSSPrimitiveValue::UnitType::String)
- return nullptr;
-
- separator = createPrimitiveCustomIdentValue(i);
- }
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> listStyle = nullptr;
- i = args->next();
- if (!i) // Make the list style default decimal
- listStyle = cssValuePool().createIdentifierValue(CSSValueDecimal);
- else {
- if (!consumeComma(args))
- return nullptr;
-
- i = args->current();
- if (i->m_unit != CSSParserValue::Identifier)
- 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 CSSCounterValue::create(identifier.release(), listStyle.release(), separator.release());
-}
-
-PassRefPtrWillBeRawPtr<CSSQuadValue> CSSPropertyParser::parseClipShape()
-{
- CSSParserValue* value = m_valueList->current();
- CSSParserValueList* args = value->function->args.get();
-
- if (value->function->id != CSSValueRect || !args)
- return nullptr;
-
- // rect(t, r, b, l) || rect(t r b l)
- if (args->size() != 4 && args->size() != 7)
- return nullptr;
- int i = 0;
- CSSParserValue* a = args->current();
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> top = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> right = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> bottom = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> left = nullptr;
- while (a) {
- if (a->id != CSSValueAuto && !validUnit(a, FLength | FUnitlessQuirk))
- return nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> length = a->id == CSSValueAuto ?
- cssValuePool().createIdentifierValue(CSSValueAuto) :
- createPrimitiveNumericValue(a);
- if (i == 0)
- top = length;
- else if (i == 1)
- right = length;
- else if (i == 2)
- bottom = length;
- else
- left = length;
- a = args->next();
- if (a && args->size() == 7) {
- if (!consumeComma(args))
- return nullptr;
- a = args->current();
- }
- i++;
- }
- m_valueList->next();
- return CSSQuadValue::create(top.release(), right.release(), bottom.release(), left.release(), CSSQuadValue::SerializeAsRect);
-}
-
-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 parseBorderRadius.
-// 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;
-
- Vector<CSSParserValue*> radiusArguments;
- while (argument) {
- radiusArguments.append(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];
-#if ENABLE(OILPAN)
- // Zero initialize the array of raw pointers.
- memset(&radii, 0, sizeof(radii));
-#endif
-
- unsigned indexAfterSlash = 0;
- for (unsigned i = 0; i < num; ++i) {
- CSSParserValue* value = radiusArguments.at(i);
- if (value->m_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(CSSValuePair::create(radii[0][0].release(), radii[1][0].release(), CSSValuePair::DropIdenticalValues));
- shape->setTopRightRadius(CSSValuePair::create(radii[0][1].release(), radii[1][1].release(), CSSValuePair::DropIdenticalValues));
- shape->setBottomRightRadius(CSSValuePair::create(radii[0][2].release(), radii[1][2].release(), CSSValuePair::DropIdenticalValues));
- shape->setBottomLeftRadius(CSSValuePair::create(radii[0][3].release(), radii[1][3].release(), CSSValuePair::DropIdenticalValues));
-
- 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->m_unit == CSSParserValue::Identifier && argument->id == CSSValueRound) {
- 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 isContentDistributionKeyword(CSSValueID id)
-{
- return id == CSSValueSpaceBetween || id == CSSValueSpaceAround
- || id == CSSValueSpaceEvenly || id == CSSValueStretch;
-}
-
-static bool isContentPositionKeyword(CSSValueID id)
-{
- return id == CSSValueStart || id == CSSValueEnd || id == CSSValueCenter
- || id == CSSValueFlexStart || id == CSSValueFlexEnd
- || id == CSSValueLeft || id == CSSValueRight;
-}
-
-static bool isBaselinePositionKeyword(CSSValueID id)
-{
- return id == CSSValueBaseline || id == CSSValueLastBaseline;
-}
-
-static bool isAlignmentOverflowKeyword(CSSValueID id)
-{
- return id == CSSValueTrue || id == CSSValueSafe;
-}
-
-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::parseLegacyPosition(CSSPropertyID propId, bool important)
-{
- // [ legacy && [ left | right | center ]
-
- CSSParserValue* value = m_valueList->current();
- ASSERT(value);
-
- if (value->id == CSSValueLegacy) {
- value = m_valueList->next();
- if (!value)
- return false;
- if (value->id != CSSValueCenter && value->id != CSSValueLeft && value->id != CSSValueRight)
- return false;
- } else if (value->id == CSSValueCenter || value->id == CSSValueLeft || value->id == CSSValueRight) {
- if (!m_valueList->next() || m_valueList->current()->id != CSSValueLegacy)
- return false;
- } else {
- return false;
- }
-
- addProperty(propId, CSSValuePair::create(cssValuePool().createIdentifierValue(CSSValueLegacy), cssValuePool().createIdentifierValue(value->id), CSSValuePair::DropIdenticalValues), important);
- return !m_valueList->next();
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseContentDistributionOverflowPosition()
-{
- // auto | <baseline-position> | <content-distribution> || [ <overflow-position>? && <content-position> ]
- // <baseline-position> = baseline | last-baseline;
- // <content-distribution> = space-between | space-around | space-evenly | stretch;
- // <content-position> = center | start | end | flex-start | flex-end | left | right;
- // <overflow-position> = true | safe
-
- // auto | <baseline-position>
- CSSParserValue* value = m_valueList->current();
- if (value->id == CSSValueAuto || isBaselinePositionKeyword(value->id)) {
- m_valueList->next();
- return CSSContentDistributionValue::create(CSSValueInvalid, value->id, CSSValueInvalid);
- }
-
- CSSValueID distribution = CSSValueInvalid;
- CSSValueID position = CSSValueInvalid;
- CSSValueID overflow = CSSValueInvalid;
- while (value) {
- if (isContentDistributionKeyword(value->id)) {
- if (distribution != CSSValueInvalid)
- return nullptr;
- distribution = value->id;
- } else if (isContentPositionKeyword(value->id)) {
- if (position != CSSValueInvalid)
- return nullptr;
- position = value->id;
- } else if (isAlignmentOverflowKeyword(value->id)) {
- if (overflow != CSSValueInvalid)
- return nullptr;
- overflow = value->id;
- } else {
- return nullptr;
- }
- value = m_valueList->next();
- }
-
- // The grammar states that we should have at least <content-distribution> or
- // <content-position> ( <content-distribution> || <content-position> ).
- if (position == CSSValueInvalid && distribution == CSSValueInvalid)
- return nullptr;
-
- // The grammar states that <overflow-position> must be associated to <content-position>.
- if (overflow != CSSValueInvalid && position == CSSValueInvalid)
- return nullptr;
-
- return CSSContentDistributionValue::create(distribution, position, overflow);
-}
-
-bool CSSPropertyParser::parseItemPositionOverflowPosition(CSSPropertyID propId, bool important)
-{
- // auto | stretch | <baseline-position> | [<item-position> && <overflow-position>? ]
- // <baseline-position> = baseline | last-baseline;
- // <item-position> = center | start | end | self-start | self-end | flex-start | flex-end | left | right;
- // <overflow-position> = true | safe
-
- CSSParserValue* value = m_valueList->current();
- ASSERT(value);
-
- if (value->id == CSSValueAuto || value->id == CSSValueStretch || isBaselinePositionKeyword(value->id)) {
- 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 (isAlignmentOverflowKeyword(value->id))
- overflowAlignmentKeyword = cssValuePool().createIdentifierValue(value->id);
- else
- return false;
- }
- } else if (isAlignmentOverflowKeyword(value->id)) {
- overflowAlignmentKeyword = cssValuePool().createIdentifierValue(value->id);
- value = m_valueList->next();
- if (value && 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, CSSValuePair::create(position, overflowAlignmentKeyword, CSSValuePair::DropIdenticalValues), important);
- else
- addProperty(propId, position.release(), important);
-
- return true;
-}
-
-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 && args->next()) {
- RefPtrWillBeRawPtr<CSSValue> centerX = nullptr;
- RefPtrWillBeRawPtr<CSSValue> centerY = nullptr;
- parseFillPosition(args, centerX, centerY);
- if (centerX && centerY && !args->current()) {
- shape->setCenterX(centerX);
- shape->setCenterY(centerY);
- } else {
- return nullptr;
- }
- } else {
- 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 || !args->next()) // expecting ellipse(.. at <position>)
- return nullptr;
- RefPtrWillBeRawPtr<CSSValue> centerX = nullptr;
- RefPtrWillBeRawPtr<CSSValue> centerY = nullptr;
- parseFillPosition(args, centerX, centerY);
- if (!centerX || !centerY || args->current())
- return nullptr;
-
- shape->setCenterX(centerX);
- shape->setCenterY(centerY);
- }
-
- 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);
- args->next();
-
- if (!consumeComma(args))
- return nullptr;
-
- size -= 2;
- }
-
- // <length> <length>, ... <length> <length> -> each pair has 3 elements except the last one
- if (!size || (size % 3) - 2)
- return nullptr;
-
- while (true) {
- CSSParserValue* argumentX = args->current();
- if (!argumentX || !validUnit(argumentX, FLength | FPercent))
- return nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> xLength = createPrimitiveNumericValue(argumentX);
-
- CSSParserValue* argumentY = args->next();
- if (!argumentY || !validUnit(argumentY, FLength | FPercent))
- return nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> yLength = createPrimitiveNumericValue(argumentY);
-
- shape->appendPoint(xLength.release(), yLength.release());
-
- if (!args->next())
- break;
- if (!consumeComma(args))
- return nullptr;
- }
-
- return shape;
-}
-
-static bool isBoxValue(CSSValueID valueId)
-{
- switch (valueId) {
- case CSSValueContentBox:
- case CSSValuePaddingBox:
- case CSSValueBorderBox:
- case CSSValueMarginBox:
- return true;
- default:
- break;
- }
-
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseShapeProperty(CSSPropertyID propId)
-{
- RefPtrWillBeRawPtr<CSSValue> imageValue = nullptr;
- if (parseFillImage(m_valueList, 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->m_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->m_unit == CSSParserValue::Function);
- CSSParserValueList* args = value->function->args.get();
-
- if (!args)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSBasicShape> shape = nullptr;
- if (value->function->id == CSSValueCircle)
- shape = parseBasicShapeCircle(args);
- else if (value->function->id == CSSValueEllipse)
- shape = parseBasicShapeEllipse(args);
- else if (value->function->id == CSSValuePolygon)
- shape = parseBasicShapePolygon(args);
- else if (value->function->id == CSSValueInset)
- 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;
- bool fontStretchParsed = false;
- CSSParserValue* value = m_valueList->current();
- for (; value; value = m_valueList->next()) {
- if (!fontStyleParsed && CSSParserFastPaths::isValidKeywordPropertyAndValue(CSSPropertyFontStyle, value->id)) {
- 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 if (!fontStretchParsed && CSSParserFastPaths::isValidKeywordPropertyAndValue(CSSPropertyFontStretch, value->id)) {
- addProperty(CSSPropertyFontStretch, cssValuePool().createIdentifierValue(value->id), important);
- fontStretchParsed = true;
- } else {
- break;
- }
- }
-
- 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);
- if (!fontStretchParsed)
- addProperty(CSSPropertyFontStretch, 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;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> lineHeight = parseLineHeight();
- if (!lineHeight)
- return false;
- addProperty(CSSPropertyLineHeight, lineHeight.release(), important);
- } 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;
-}
-
-bool CSSPropertyParser::parseSystemFont(bool important)
-{
- CSSValueID systemFontID = m_valueList->valueAt(0)->id;
- ASSERT(systemFontID >= CSSValueCaption && systemFontID <= CSSValueStatusBar);
- if (m_valueList->next())
- return false;
-
- FontStyle fontStyle = FontStyleNormal;
- FontWeight fontWeight = FontWeightNormal;
- float fontSize = 0;
- AtomicString fontFamily;
- LayoutTheme::theme().systemFont(systemFontID, fontStyle, fontWeight, fontSize, fontFamily);
-
- ShorthandScope scope(this, CSSPropertyFont);
- addProperty(CSSPropertyFontStyle, cssValuePool().createIdentifierValue(fontStyle == FontStyleItalic ? CSSValueItalic : CSSValueNormal), important);
- addProperty(CSSPropertyFontWeight, cssValuePool().createValue(fontWeight), important);
- addProperty(CSSPropertyFontSize, cssValuePool().createValue(fontSize, CSSPrimitiveValue::UnitType::Pixels), important);
- RefPtrWillBeRawPtr<CSSValueList> fontFamilyList = CSSValueList::createCommaSeparated();
- fontFamilyList->append(cssValuePool().createFontFamilyValue(fontFamily));
- addProperty(CSSPropertyFontFamily, fontFamilyList.release(), important);
-
- addProperty(CSSPropertyFontStretch, cssValuePool().createIdentifierValue(CSSValueNormal), important);
- addProperty(CSSPropertyFontVariant, cssValuePool().createIdentifierValue(CSSValueNormal), important);
- addProperty(CSSPropertyLineHeight, cssValuePool().createIdentifierValue(CSSValueNormal), important);
- return true;
-}
-
-class FontFamilyValueBuilder {
- STACK_ALLOCATED();
-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;
- RawPtrWillBeMember<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 || isComma(nextValue);
- bool nextValIsFontName = nextValue &&
- ((nextValue->id >= CSSValueSerif && nextValue->id <= CSSValueWebkitBody) ||
- (nextValue->unit() == CSSPrimitiveValue::UnitType::String || nextValue->m_unit == CSSParserValue::Identifier));
-
- if (isCSSWideKeyword(*value) && !inFamily) {
- if (nextValBreaksFont)
- return nullptr;
- 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::UnitType::String) {
- // Strings never share in a family name.
- inFamily = false;
- familyBuilder.commit();
- list->append(cssValuePool().createFontFamilyValue(value->string));
- } else if (value->m_unit == CSSParserValue::Identifier) {
- 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() || (m_ruleType == StyleRule::FontFace && list->length() > 1))
- list = nullptr;
- return list.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseLineHeight()
-{
- CSSParserValue* value = m_valueList->current();
- CSSValueID id = value->id;
-
- // normal | <number> | <length> | <percentage> | inherit
- if (id == CSSValueNormal) {
- m_valueList->next();
- return cssValuePool().createIdentifierValue(id);
- }
-
- if (!validUnit(value, FNumber | FLength | FPercent | FNonNeg))
- return nullptr;
- // The line-height property can accept both percents and numbers but additive opertaions are
- // not permitted on them in calc() expressions.
- if (m_parsedCalculation && m_parsedCalculation->category() == CalcPercentNumber) {
- m_parsedCalculation.release();
- return nullptr;
- }
- m_valueList->next();
- return createPrimitiveNumericValue(value);
-}
-
-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 | (inShorthand() ? FUnknown : FUnitlessQuirk));
- if (validPrimitive && (!m_valueList->next() || inShorthand()))
- addProperty(CSSPropertyFontSize, parseValidPrimitive(id, value), important);
- return validPrimitive;
-}
-
-bool CSSPropertyParser::parseFontVariant(bool important)
-{
- RefPtrWillBeRawPtr<CSSValueList> values = nullptr;
- if (m_valueList->size() > 1)
- values = CSSValueList::createCommaSeparated();
- bool expectComma = false;
- for (CSSParserValue* val = m_valueList->current(); val; val = m_valueList->current()) {
- RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue = nullptr;
- if (!expectComma) {
- expectComma = true;
- if (val->id == CSSValueNormal || val->id == CSSValueSmallCaps)
- parsedValue = cssValuePool().createIdentifierValue(val->id);
- else if (val->id == CSSValueAll && !values) {
- // FIXME: CSSPropertyParser::parseFontVariant() implements
- // the old css3 draft:
- // http://www.w3.org/TR/2002/WD-css3-webfonts-20020802/#font-variant
- // '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 (consumeComma(m_valueList)) {
- expectComma = false;
- 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()) {
- if (m_ruleType != StyleRule::FontFace)
- return false;
- 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 <= CSSValueLighter) {
- addProperty(CSSPropertyFontWeight, cssValuePool().createIdentifierValue(value->id), important);
- return true;
- }
- if (value->unit() == CSSPrimitiveValue::UnitType::Number) {
- 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), m_context.shouldCheckContentSecurityPolicy()));
- uriValue->setReferrer(m_context.referrer());
-
- CSSParserValue* value = m_valueList->next();
- if (!value || value->m_unit != CSSParserValue::Function || value->function->id != CSSValueFormat) {
- valueList->append(uriValue.release());
- return true;
- }
-
- // 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::UnitType::String && args->current()->m_unit != CSSParserValue::Identifier))
- return false;
- uriValue->setFormat(args->current()->string);
- valueList->append(uriValue.release());
- m_valueList->next();
- return true;
-}
-
-bool CSSPropertyParser::parseFontFaceSrcLocal(CSSValueList* valueList)
-{
- CSSParserValueList* args = m_valueList->current()->function->args.get();
- if (!args || !args->size())
- return false;
- m_valueList->next();
-
- ContentSecurityPolicyDisposition shouldCheckContentSecurityPolicy = m_context.shouldCheckContentSecurityPolicy();
- if (args->size() == 1 && args->current()->unit() == CSSPrimitiveValue::UnitType::String) {
- valueList->append(CSSFontFaceSrcValue::createLocal(args->current()->string, shouldCheckContentSecurityPolicy));
- } else if (args->current()->m_unit == CSSParserValue::Identifier) {
- StringBuilder builder;
- for (CSSParserValue* localValue = args->current(); localValue; localValue = args->next()) {
- if (localValue->m_unit != CSSParserValue::Identifier)
- return false;
- if (!builder.isEmpty())
- builder.append(' ');
- builder.append(localValue->string);
- }
- valueList->append(CSSFontFaceSrcValue::createLocal(builder.toString(), shouldCheckContentSecurityPolicy));
- } else
- return false;
-
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseFontFaceSrc()
-{
- RefPtrWillBeRawPtr<CSSValueList> values(CSSValueList::createCommaSeparated());
-
- while (true) {
- CSSParserValue* value = m_valueList->current();
- if (!value)
- return nullptr;
- if (value->unit() == CSSPrimitiveValue::UnitType::URI) {
- if (!parseFontFaceSrcURI(values.get()))
- return nullptr;
- } else if (value->m_unit == CSSParserValue::Function && value->function->id == CSSValueLocal) {
- if (!parseFontFaceSrcLocal(values.get()))
- return nullptr;
- } else {
- return nullptr;
- }
-
- if (!m_valueList->current())
- return values.release();
- if (!consumeComma(m_valueList))
- return nullptr;
- }
-}
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseFontFaceUnicodeRange()
-{
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated();
-
- do {
- CSSParserValue* current = m_valueList->current();
- if (!current || current->m_unit != CSSParserValue::UnicodeRange)
- return nullptr;
-
- UChar32 start = current->m_unicodeRange.start;
- UChar32 end = current->m_unicodeRange.end;
- if (start > end)
- return nullptr;
- values->append(CSSUnicodeRangeValue::create(start, end));
- m_valueList->next();
- } while (consumeComma(m_valueList));
-
- return values.release();
-}
-
-inline int CSSPropertyParser::colorIntFromValue(CSSParserValue* v)
-{
- bool isPercent;
- double value;
-
- if (m_parsedCalculation) {
- isPercent = m_parsedCalculation->category() == CalcPercent;
- value = m_parsedCalculation->doubleValue();
- m_parsedCalculation.release();
- } else {
- isPercent = v->unit() == CSSPrimitiveValue::UnitType::Percentage;
- value = v->fValue;
- }
-
- 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(const 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))
- unitType = FInteger;
- else if (validUnit(v, FPercent))
- unitType = FPercent;
- else
- return false;
-
- colorArray[0] = colorIntFromValue(v);
- for (int i = 1; i < 3; i++) {
- args->next();
- if (!consumeComma(args))
- return false;
- v = args->current();
- if (!validUnit(v, unitType))
- return false;
- colorArray[i] = colorIntFromValue(v);
- }
- if (parseAlpha) {
- args->next();
- if (!consumeComma(args))
- return false;
- v = args->current();
- if (!validUnit(v, FNumber))
- return false;
- // 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>(std::max(0.0, std::min(1.0, v->fValue)) * 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(const CSSParserValue* value, double* colorArray, bool parseAlpha)
-{
- CSSParserValueList* args = value->function->args.get();
- CSSParserValue* v = args->current();
- // Get the first value
- if (!validUnit(v, FNumber))
- return false;
- // normalize the Hue value and change it to be between 0 and 1.0
- colorArray[0] = (((static_cast<int>(v->fValue) % 360) + 360) % 360) / 360.0;
- for (int i = 1; i < 3; i++) {
- args->next();
- if (!consumeComma(args))
- return false;
- v = args->current();
- if (!validUnit(v, FPercent))
- return false;
- double percentValue = m_parsedCalculation ? m_parsedCalculation.release()->doubleValue() : v->fValue;
- colorArray[i] = std::max(0.0, std::min(100.0, percentValue)) / 100.0; // needs to be value between 0 and 1.0
- }
- if (parseAlpha) {
- args->next();
- if (!consumeComma(args))
- return false;
- v = args->current();
- if (!validUnit(v, FNumber))
- return false;
- colorArray[3] = std::max(0.0, std::min(1.0, v->fValue));
- }
- return true;
-}
-
-bool CSSPropertyParser::parseColorFromValue(const CSSParserValue* value, RGBA32& result, bool acceptQuirkyColors)
-{
- if (acceptQuirkyColors && value->unit() == CSSPrimitiveValue::UnitType::Number
- && value->fValue >= 0. && value->fValue < 1000000. && value->isInt) {
- String str = String::format("%06d", static_cast<int>(value->fValue));
- return Color::parseHexColor(str, result);
- }
- if (acceptQuirkyColors && value->m_unit == CSSParserValue::DimensionList) {
- CSSParserValue* numberToken = value->valueList->valueAt(0);
- CSSParserValue* unitToken = value->valueList->valueAt(1);
- ASSERT(numberToken->unit() == CSSPrimitiveValue::UnitType::Number);
- ASSERT(unitToken->m_unit == CSSParserValue::Identifier);
- if (!numberToken->isInt || numberToken->fValue < 0)
- return false;
- String color = String::number(numberToken->fValue) + String(unitToken->string);
- if (color.length() > 6)
- return false;
- while (color.length() < 6)
- color = "0" + color;
- return Color::parseHexColor(color, result);
- }
- if (value->m_unit == CSSParserValue::Identifier) {
- Color color;
- if (!color.setNamedColor(value->string))
- return acceptQuirkyColors && Color::parseHexColor(value->string, result);
- result = color.rgb();
- return true;
- }
- if (value->m_unit == CSSParserValue::HexColor) {
- if (value->string.is8Bit())
- return Color::parseHexColor(value->string.characters8(), value->string.length(), result);
- return Color::parseHexColor(value->string.characters16(), value->string.length(), result);
- }
-
- if (value->m_unit == CSSParserValue::Function
- && value->function->args != 0
- && value->function->args->size() == 5 /* rgb + two commas */
- && value->function->id == CSSValueRgb) {
- int colorValues[3];
- if (!parseColorParameters(value, colorValues, false))
- return false;
- result = makeRGB(colorValues[0], colorValues[1], colorValues[2]);
- } else {
- if (value->m_unit == CSSParserValue::Function
- && value->function->args != 0
- && value->function->args->size() == 7 /* rgba + three commas */
- && value->function->id == CSSValueRgba) {
- int colorValues[4];
- if (!parseColorParameters(value, colorValues, true))
- return false;
- result = makeRGBA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]);
- } else if (value->m_unit == CSSParserValue::Function
- && value->function->args != 0
- && value->function->args->size() == 5 /* hsl + two commas */
- && value->function->id == CSSValueHsl) {
- double colorValues[3];
- if (!parseHSLParameters(value, colorValues, false))
- return false;
- result = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], 1.0);
- } else if (value->m_unit == CSSParserValue::Function
- && value->function->args != 0
- && value->function->args->size() == 7 /* hsla + three commas */
- && value->function->id == CSSValueHsla) {
- double colorValues[4];
- if (!parseHSLParameters(value, colorValues, true))
- return false;
- result = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]);
- } else {
- return false;
- }
- }
-
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseShadow(CSSParserValueList* valueList, CSSPropertyID propID)
-{
- RefPtrWillBeRawPtr<CSSValueList> shadowValueList = CSSValueList::createCommaSeparated();
- const bool isBoxShadowProperty = propID == CSSPropertyBoxShadow;
- while (RefPtrWillBeRawPtr<CSSShadowValue> shadowValue = parseSingleShadow(valueList, isBoxShadowProperty, isBoxShadowProperty)) {
- shadowValueList->append(shadowValue);
- if (!valueList->current())
- break;
- if (!consumeComma(valueList))
- return nullptr;
- }
- if (shadowValueList->length() == 0)
- return nullptr;
- return shadowValueList;
-}
-
-PassRefPtrWillBeRawPtr<CSSShadowValue> CSSPropertyParser::parseSingleShadow(CSSParserValueList* valueList, bool allowInset, bool allowSpread)
-{
- RefPtrWillBeMember<CSSPrimitiveValue> style;
- RefPtrWillBeMember<CSSPrimitiveValue> color;
- Vector<RefPtrWillBeRawPtr<CSSPrimitiveValue>, 4> lengths;
-
- CSSParserValue* val = valueList->current();
- if (!val)
- return nullptr;
- if (val->id == CSSValueInset) {
- if (!allowInset)
- return nullptr;
- style = cssValuePool().createIdentifierValue(val->id);
- val = valueList->next();
- if (!val)
- return nullptr;
- }
- if ((color = parseColor(val)))
- val = valueList->next();
-
- if (!val || !validUnit(val, FLength, HTMLStandardMode))
- return nullptr;
- lengths.append(createPrimitiveNumericValue(val));
- val = valueList->next();
-
- if (!val || !validUnit(val, FLength, HTMLStandardMode))
- return nullptr;
- lengths.append(createPrimitiveNumericValue(val));
- val = valueList->next();
-
- if (val && validUnit(val, FLength, HTMLStandardMode)) {
- // Blur radius must be non-negative.
- if (m_parsedCalculation ? m_parsedCalculation->isNegative() : !validUnit(val, FLength | FNonNeg, HTMLStandardMode)) {
- m_parsedCalculation.release();
- return nullptr;
- }
- lengths.append(createPrimitiveNumericValue(val));
- val = valueList->next();
- if (val && validUnit(val, FLength, HTMLStandardMode)) {
- if (!allowSpread)
- return nullptr;
- lengths.append(createPrimitiveNumericValue(val));
- val = valueList->next();
- }
- }
-
- if (val) {
- if (RefPtrWillBeMember<CSSPrimitiveValue> colorValue = parseColor(val)) {
- if (color)
- return nullptr;
- color = colorValue;
- val = valueList->next();
- }
- if (val && val->id == CSSValueInset) {
- if (!allowInset || style)
- return nullptr;
- style = cssValuePool().createIdentifierValue(val->id);
- val = valueList->next();
- }
- }
- unsigned lengthsSeen = lengths.size();
- return CSSShadowValue::create(lengths.at(0), lengths.at(1),
- lengthsSeen > 2 ? lengths.at(2) : nullptr,
- lengthsSeen > 3 ? lengths.at(3) : nullptr,
- style.release(), color.release());
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseReflect()
-{
- // box-reflect: <direction> <offset> <mask>
-
- // Direction comes first.
- CSSParserValue* val = m_valueList->current();
- RefPtrWillBeRawPtr<CSSPrimitiveValue> direction = nullptr;
- switch (val->id) {
- case CSSValueAbove:
- case CSSValueBelow:
- case CSSValueLeft:
- case CSSValueRight:
- direction = cssValuePool().createIdentifierValue(val->id);
- break;
- default:
- return nullptr;
- }
-
- // The offset comes next.
- val = m_valueList->next();
- RefPtrWillBeRawPtr<CSSPrimitiveValue> offset = nullptr;
- if (!val)
- offset = cssValuePool().createValue(0, CSSPrimitiveValue::UnitType::Pixels);
- else {
- if (!validUnit(val, FLength | FPercent))
- return nullptr;
- offset = createPrimitiveNumericValue(val);
- }
-
- // Now for the mask.
- RefPtrWillBeRawPtr<CSSValue> mask = nullptr;
- val = m_valueList->next();
- if (val) {
- mask = parseBorderImage(CSSPropertyWebkitBoxReflect);
- if (!mask)
- return nullptr;
- }
-
- return CSSReflectValue::create(direction.release(), offset.release(), mask.release());
-}
-
-static bool isFlexBasisMiddleArg(double flexGrow, double flexShrink, double unsetValue, int argSize)
-{
- return flexGrow != unsetValue && flexShrink == unsetValue && argSize == 3;
-}
-
-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 = nullptr;
-
- 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::UnitType::Pixels);
- } 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)) && !isFlexBasisMiddleArg(flexGrow, flexShrink, unsetValue, args->size()))
- 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::UnitType::Percentage);
-
- addProperty(CSSPropertyFlexGrow, cssValuePool().createValue(clampTo<float>(flexGrow), CSSPrimitiveValue::UnitType::Number), important);
- addProperty(CSSPropertyFlexShrink, cssValuePool().createValue(clampTo<float>(flexShrink), CSSPrimitiveValue::UnitType::Number), important);
- addProperty(CSSPropertyFlexBasis, flexBasis, important);
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parsePosition(CSSParserValueList* valueList)
-{
- RefPtrWillBeRawPtr<CSSValue> xValue = nullptr;
- RefPtrWillBeRawPtr<CSSValue> yValue = nullptr;
- parseFillPosition(valueList, xValue, yValue);
- if (!xValue || !yValue)
- return nullptr;
- return CSSValuePair::create(xValue.release(), yValue.release(), CSSValuePair::KeepIdenticalValues);
-}
-
-// Parses a list of comma separated positions. i.e., <position>#
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parsePositionList(CSSParserValueList* valueList)
-{
- RefPtrWillBeRawPtr<CSSValueList> positions = CSSValueList::createCommaSeparated();
- while (true) {
- // parsePosition consumes values until it reaches a separator [,/],
- // an invalid token, or end of the list
- RefPtrWillBeRawPtr<CSSValue> position = parsePosition(valueList);
- if (!position)
- return nullptr;
- positions->append(position);
-
- if (!valueList->current())
- break;
- if (!consumeComma(valueList) || !valueList->current())
- return nullptr;
- }
-
- return positions.release();
-}
-
-class BorderImageParseContext {
- STACK_ALLOCATED();
-public:
- BorderImageParseContext()
- : m_canAdvance(false)
- , m_allowCommit(true)
- , m_allowImage(true)
- , m_allowImageSlice(true)
- , m_allowRepeat(true)
- , m_allowForwardSlashOperator(false)
- , m_allowWidth(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 allowWidth() const { return m_allowWidth; }
- bool requireOutset() const { return m_requireOutset; }
-
- void commitImage(PassRefPtrWillBeRawPtr<CSSValue> image)
- {
- m_image = image;
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowImage = false;
- m_allowForwardSlashOperator = false;
- m_allowWidth = false;
- m_requireOutset = false;
- m_allowImageSlice = !m_imageSlice;
- m_allowRepeat = !m_repeat;
- }
- void commitImageSlice(PassRefPtrWillBeRawPtr<CSSBorderImageSliceValue> slice)
- {
- m_imageSlice = slice;
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowForwardSlashOperator = true;
- m_allowImageSlice = false;
- m_allowWidth = false;
- m_requireOutset = false;
- m_allowImage = !m_image;
- m_allowRepeat = !m_repeat;
- }
- void commitForwardSlashOperator()
- {
- m_canAdvance = true;
- m_allowCommit = false;
- m_allowImage = false;
- m_allowImageSlice = false;
- m_allowRepeat = false;
- if (!m_borderWidth && !m_allowWidth) {
- m_allowForwardSlashOperator = true;
- m_allowWidth = true;
- m_requireOutset = false;
- } else {
- m_allowForwardSlashOperator = false;
- m_requireOutset = true;
- m_allowWidth = false;
- }
- }
- void commitBorderWidth(PassRefPtrWillBeRawPtr<CSSQuadValue> width)
- {
- m_borderWidth = width;
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowForwardSlashOperator = true;
- m_allowImageSlice = false;
- m_allowWidth = false;
- m_requireOutset = false;
- m_allowImage = !m_image;
- m_allowRepeat = !m_repeat;
- }
- void commitBorderOutset(PassRefPtrWillBeRawPtr<CSSQuadValue> outset)
- {
- m_outset = outset;
- m_canAdvance = true;
- m_allowCommit = true;
- m_allowImageSlice = false;
- m_allowForwardSlashOperator = false;
- m_allowWidth = false;
- 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 = false;
- m_allowForwardSlashOperator = false;
- m_allowWidth = false;
- m_requireOutset = false;
- m_allowImageSlice = !m_imageSlice;
- m_allowImage = !m_image;
- }
-
- PassRefPtrWillBeRawPtr<CSSValue> commitCSSValue()
- {
- return createBorderImageValue(m_image, m_imageSlice.get(), m_borderWidth.get(), m_outset.get(), m_repeat.get());
- }
-
- bool m_canAdvance;
-
- bool m_allowCommit;
- bool m_allowImage;
- bool m_allowImageSlice;
- bool m_allowRepeat;
- bool m_allowForwardSlashOperator;
-
- bool m_allowWidth;
- bool m_requireOutset;
-
- RefPtrWillBeMember<CSSValue> m_image;
- RefPtrWillBeMember<CSSBorderImageSliceValue> m_imageSlice;
- RefPtrWillBeMember<CSSQuadValue> m_borderWidth;
- RefPtrWillBeMember<CSSQuadValue> m_outset;
-
- RefPtrWillBeMember<CSSValue> m_repeat;
-};
-
-bool CSSPropertyParser::buildBorderImageParseContext(CSSPropertyID propId, BorderImageParseContext& context)
-{
- CSSPropertyParser::ShorthandScope scope(this, propId);
- while (CSSParserValue* val = m_valueList->current()) {
- context.setCanAdvance(false);
-
- if (!context.canAdvance() && context.allowForwardSlashOperator() && isForwardSlashOperator(val))
- context.commitForwardSlashOperator();
-
- if (!context.canAdvance() && context.allowImage()) {
- if (val->unit() == CSSPrimitiveValue::UnitType::URI) {
- context.commitImage(createCSSImageValueWithReferrer(val->string, m_context.completeURL(val->string)));
- } else if (isGeneratedImageValue(val)) {
- RefPtrWillBeRawPtr<CSSValue> value = nullptr;
- if (parseGeneratedImage(m_valueList, value))
- context.commitImage(value.release());
- else
- return false;
- } else if (val->m_unit == CSSParserValue::Function && val->function->id == CSSValueWebkitImageSet) {
- RefPtrWillBeRawPtr<CSSValue> value = parseImageSet(m_valueList);
- 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 = nullptr;
- if (parseBorderImageSlice(propId, imageSlice))
- context.commitImageSlice(imageSlice.release());
- }
-
- if (!context.canAdvance() && context.allowRepeat()) {
- RefPtrWillBeRawPtr<CSSValue> repeat = nullptr;
- if (parseBorderImageRepeat(repeat))
- context.commitRepeat(repeat.release());
- }
-
- if (!context.canAdvance() && context.allowWidth()) {
- RefPtrWillBeRawPtr<CSSQuadValue> borderWidth = nullptr;
- if (parseBorderImageWidth(borderWidth))
- context.commitBorderWidth(borderWidth.release());
- }
-
- if (!context.canAdvance() && context.requireOutset()) {
- RefPtrWillBeRawPtr<CSSQuadValue> borderOutset = nullptr;
- if (parseBorderImageOutset(borderOutset))
- context.commitBorderOutset(borderOutset.release());
- }
-
- if (!context.canAdvance())
- return false;
-
- m_valueList->next();
- }
-
- return context.allowCommit();
-}
-
-void CSSPropertyParser::commitBorderImageProperty(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> value, bool important)
-{
- if (value)
- addProperty(propId, value, important);
- else
- addProperty(propId, cssValuePool().createImplicitInitialValue(), important, true);
-}
-
-bool CSSPropertyParser::parseBorderImageShorthand(CSSPropertyID propId, bool important)
-{
- BorderImageParseContext context;
- if (buildBorderImageParseContext(propId, context)) {
- switch (propId) {
- case CSSPropertyWebkitMaskBoxImage:
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageSource, context.m_image, important);
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageSlice, context.m_imageSlice.get(), important);
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageWidth, context.m_borderWidth.get(), important);
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageOutset, context.m_outset.get(), important);
- commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageRepeat, context.m_repeat.get(), important);
- return true;
- case CSSPropertyBorderImage:
- commitBorderImageProperty(CSSPropertyBorderImageSource, context.m_image, important);
- commitBorderImageProperty(CSSPropertyBorderImageSlice, context.m_imageSlice.get(), important);
- commitBorderImageProperty(CSSPropertyBorderImageWidth, context.m_borderWidth.get(), important);
- commitBorderImageProperty(CSSPropertyBorderImageOutset, context.m_outset.get(), important);
- commitBorderImageProperty(CSSPropertyBorderImageRepeat, context.m_repeat, important);
- return true;
- default:
- ASSERT_NOT_REACHED();
- return false;
- }
- }
- return false;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseBorderImage(CSSPropertyID propId)
-{
- BorderImageParseContext context;
- if (buildBorderImageParseContext(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 = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> secondValue = nullptr;
- 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 = CSSValuePair::create(firstValue, secondValue, CSSValuePair::DropIdenticalValues);
- return true;
-}
-
-class BorderImageSliceParseContext {
- STACK_ALLOCATED();
-public:
- BorderImageSliceParseContext()
- : 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(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val)
- {
- 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;
-
- return CSSBorderImageSliceValue::create(CSSQuadValue::create(m_top.release(), m_right.release(), m_bottom.release(), m_left.release(), CSSQuadValue::SerializeAsQuad), m_fill);
- }
-
-private:
- bool m_allowNumber;
- bool m_allowFill;
- bool m_allowFinalCommit;
-
- RefPtrWillBeMember<CSSPrimitiveValue> m_top;
- RefPtrWillBeMember<CSSPrimitiveValue> m_right;
- RefPtrWillBeMember<CSSPrimitiveValue> m_bottom;
- RefPtrWillBeMember<CSSPrimitiveValue> m_left;
-
- bool m_fill;
-};
-
-bool CSSPropertyParser::parseBorderImageSlice(CSSPropertyID propId, RefPtrWillBeRawPtr<CSSBorderImageSliceValue>& result)
-{
- BorderImageSliceParseContext context;
- for (CSSParserValue* val = m_valueList->current(); val; val = m_valueList->next()) {
- // 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)) {
- context.commitNumber(createPrimitiveNumericValue(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;
- }
- }
-
- 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 {
- STACK_ALLOCATED();
-public:
- BorderImageQuadParseContext()
- : 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(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val)
- {
- 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 setTop(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_top = val; }
-
- PassRefPtrWillBeRawPtr<CSSQuadValue> 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;
-
- return CSSQuadValue::create(m_top.release(), m_right.release(), m_bottom.release(), m_left.release(), CSSQuadValue::SerializeAsQuad);
- }
-
-private:
- bool m_allowNumber;
- bool m_allowFinalCommit;
-
- RefPtrWillBeMember<CSSPrimitiveValue> m_top;
- RefPtrWillBeMember<CSSPrimitiveValue> m_right;
- RefPtrWillBeMember<CSSPrimitiveValue> m_bottom;
- RefPtrWillBeMember<CSSPrimitiveValue> m_left;
-};
-
-bool CSSPropertyParser::parseBorderImageQuad(Units validUnits, RefPtrWillBeRawPtr<CSSQuadValue>& result)
-{
- BorderImageQuadParseContext context;
- for (CSSParserValue* val = m_valueList->current(); val; val = m_valueList->next()) {
- if (context.allowNumber() && (validUnit(val, validUnits, HTMLStandardMode) || val->id == CSSValueAuto)) {
- if (val->id == CSSValueAuto)
- context.commitNumber(cssValuePool().createIdentifierValue(val->id));
- else
- context.commitNumber(createPrimitiveNumericValue(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;
- }
- }
-
- if (context.allowFinalCommit()) {
- // Need to fully commit as a single value.
- result = context.commitBorderImageQuad();
- return true;
- }
- return false;
-}
-
-bool CSSPropertyParser::parseBorderImageWidth(RefPtrWillBeRawPtr<CSSQuadValue>& result)
-{
- return parseBorderImageQuad(FLength | FNumber | FNonNeg | FPercent, result);
-}
-
-bool CSSPropertyParser::parseBorderImageOutset(RefPtrWillBeRawPtr<CSSQuadValue>& result)
-{
- return parseBorderImageQuad(FLength | FNumber | FNonNeg, result);
-}
-
-bool CSSPropertyParser::parseBorderRadius(CSSPropertyID unresolvedProperty, bool important)
-{
- unsigned num = m_valueList->size();
- if (num > 9)
- return false;
-
- ShorthandScope scope(this, unresolvedProperty);
- RefPtrWillBeRawPtr<CSSPrimitiveValue> radii[2][4];
-#if ENABLE(OILPAN)
- // Zero initialize the array of raw pointers.
- memset(&radii, 0, sizeof(radii));
-#endif
-
- unsigned indexAfterSlash = 0;
- for (unsigned i = 0; i < num; ++i) {
- CSSParserValue* value = m_valueList->valueAt(i);
- if (value->m_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 && unresolvedProperty == CSSPropertyAliasWebkitBorderRadius) {
- 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);
- addProperty(CSSPropertyBorderTopLeftRadius, CSSValuePair::create(radii[0][0].release(), radii[1][0].release(), CSSValuePair::DropIdenticalValues), important);
- addProperty(CSSPropertyBorderTopRightRadius, CSSValuePair::create(radii[0][1].release(), radii[1][1].release(), CSSValuePair::DropIdenticalValues), important);
- addProperty(CSSPropertyBorderBottomRightRadius, CSSValuePair::create(radii[0][2].release(), radii[1][2].release(), CSSValuePair::DropIdenticalValues), important);
- addProperty(CSSPropertyBorderBottomLeftRadius, CSSValuePair::create(radii[0][3].release(), radii[1][3].release(), CSSValuePair::DropIdenticalValues), important);
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseCounter(int defaultValue)
-{
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated();
-
- while (m_valueList->current()) {
- CSSParserValue* val = m_valueList->current();
- if (val->m_unit != CSSParserValue::Identifier)
- return nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> counterName = createPrimitiveCustomIdentValue(val);
- m_valueList->next();
-
- val = m_valueList->current();
- int i = defaultValue;
- if (val && validUnit(val, FInteger)) {
- i = clampTo<int>(val->fValue);
- m_valueList->next();
- }
-
- list->append(CSSValuePair::create(counterName.release(),
- cssValuePool().createValue(i, CSSPrimitiveValue::UnitType::Number),
- CSSValuePair::DropIdenticalValues));
- }
-
- if (!list->length())
- return nullptr;
- return list.release();
-}
-
-// This should go away once we drop support for -webkit-gradient
-static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parseDeprecatedGradientPoint(CSSParserValue* a, bool horizontal)
-{
- RefPtrWillBeRawPtr<CSSPrimitiveValue> result = nullptr;
- if (a->m_unit == CSSParserValue::Identifier) {
- if ((a->id == CSSValueLeft && horizontal)
- || (a->id == CSSValueTop && !horizontal))
- result = cssValuePool().createValue(0., CSSPrimitiveValue::UnitType::Percentage);
- else if ((a->id == CSSValueRight && horizontal)
- || (a->id == CSSValueBottom && !horizontal))
- result = cssValuePool().createValue(100., CSSPrimitiveValue::UnitType::Percentage);
- else if (a->id == CSSValueCenter)
- result = cssValuePool().createValue(50., CSSPrimitiveValue::UnitType::Percentage);
- } else if (a->unit() == CSSPrimitiveValue::UnitType::Number || a->unit() == CSSPrimitiveValue::UnitType::Percentage) {
- result = cssValuePool().createValue(a->fValue, a->unit());
- }
- return result;
-}
-
-// Used to parse colors for -webkit-gradient(...).
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseDeprecatedGradientStopColor(const CSSParserValue* value)
-{
- // Disallow currentcolor.
- if (value->id == CSSValueCurrentcolor)
- return nullptr;
- return parseColor(value);
-}
-
-bool CSSPropertyParser::parseDeprecatedGradientColorStop(CSSParserValue* a, CSSGradientColorStop& stop)
-{
- if (a->m_unit != CSSParserValue::Function)
- return false;
-
- if (a->function->id != CSSValueFrom
- && a->function->id != CSSValueTo
- && a->function->id != CSSValueColorStop)
- return false;
-
- CSSParserValueList* args = a->function->args.get();
- if (!args)
- return false;
-
- if (a->function->id == CSSValueFrom || a->function->id == CSSValueTo) {
- // The "from" and "to" stops expect 1 argument.
- if (args->size() != 1)
- return false;
-
- if (a->function->id == CSSValueFrom)
- stop.m_position = cssValuePool().createValue(0, CSSPrimitiveValue::UnitType::Number);
- else
- stop.m_position = cssValuePool().createValue(1, CSSPrimitiveValue::UnitType::Number);
-
- stop.m_color = parseDeprecatedGradientStopColor(args->current());
- if (!stop.m_color)
- return false;
- }
-
- // The "color-stop" function expects 3 arguments.
- if (a->function->id == CSSValueColorStop) {
- if (args->size() != 3)
- return false;
-
- CSSParserValue* stopArg = args->current();
- if (stopArg->unit() == CSSPrimitiveValue::UnitType::Percentage)
- stop.m_position = cssValuePool().createValue(stopArg->fValue / 100, CSSPrimitiveValue::UnitType::Number);
- else if (stopArg->unit() == CSSPrimitiveValue::UnitType::Number)
- stop.m_position = cssValuePool().createValue(stopArg->fValue, CSSPrimitiveValue::UnitType::Number);
- else
- return false;
-
- args->next();
- if (!consumeComma(args))
- return false;
-
- stop.m_color = parseDeprecatedGradientStopColor(args->current());
- 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->m_unit != CSSParserValue::Identifier)
- return false;
- if (a->id == CSSValueLinear)
- gradientType = CSSDeprecatedLinearGradient;
- else if (a->id == CSSValueRadial)
- gradientType = CSSDeprecatedRadialGradient;
- else
- return false;
-
- RefPtrWillBeRawPtr<CSSGradientValue> result = nullptr;
- 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();
- }
- args->next();
-
- if (!consumeComma(args))
- 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->current();
- 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.
- args->next();
- if (!consumeComma(args))
- return false;
-
- // For radial gradients only, we now expect a numeric radius.
- if (gradientType == CSSDeprecatedRadialGradient) {
- a = args->current();
- if (!a || a->unit() != CSSPrimitiveValue::UnitType::Number)
- return false;
- toCSSRadialGradientValue(result.get())->setFirstRadius(createPrimitiveNumericValue(a));
-
- // Comma after the first radius.
- args->next();
- if (!consumeComma(args))
- 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->current();
- 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());
- args->next();
-
- // For radial gradients only, we now expect the second radius.
- if (gradientType == CSSDeprecatedRadialGradient) {
- // Comma after the second point.
- if (!consumeComma(args))
- return false;
-
- a = args->current();
- if (!a || a->unit() != CSSPrimitiveValue::UnitType::Number)
- return false;
- toCSSRadialGradientValue(result.get())->setSecondRadius(createPrimitiveNumericValue(a));
- args->next();
- }
-
- // We now will accept any number of stops (0 or more).
- a = args->current();
- while (a) {
- // Look for the comma before the next stop.
- if (!consumeComma(args))
- return false;
-
- // Now examine the stop itself.
- a = args->current();
- if (!a)
- return false;
-
- // The function name needs to be one of "from", "to", or "color-stop."
- CSSGradientColorStop stop;
- if (!parseDeprecatedGradientColorStop(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->m_unit != CSSParserValue::Identifier)
- 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);
-}
-
-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 = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> startY = nullptr;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> location = nullptr;
- bool isHorizontal = false;
- if ((location = valueFromSideKeyword(a, isHorizontal))) {
- if (isHorizontal)
- startX = location;
- else
- startY = location;
-
- a = args->next();
- if (a) {
- 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 = nullptr;
- RefPtrWillBeRawPtr<CSSValue> centerY = nullptr;
- // parse2ValuesFillPosition advances the args next pointer.
- parse2ValuesFillPosition(args, centerX, centerY);
-
- if ((centerX || centerY) && !consumeComma(args))
- return false;
-
- a = args->current();
- 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 = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> sizeValue = nullptr;
-
- // Optional shape and/or size in any order.
- for (int i = 0; i < 2; ++i) {
- if (a->m_unit != CSSParserValue::Identifier)
- 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 = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> verticalSize = nullptr;
-
- 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);
-
- CSSParserFunction* function = valueList->current()->function;
- CSSParserValueList* args = 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->m_unit == CSSParserValue::Identifier && a->id == CSSValueTo) {
- // to [ [left | right] || [top | bottom] ]
- a = args->next();
- if (!a)
- return false;
-
- RefPtrWillBeRawPtr<CSSPrimitiveValue> endX = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> endY = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> location = nullptr;
- 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 = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> sizeValue = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> horizontalSize = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> verticalSize = nullptr;
-
- // 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->m_unit == CSSParserValue::Identifier) {
- 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 = nullptr;
- RefPtrWillBeRawPtr<CSSValue> centerY = nullptr;
- if (a->m_unit == CSSParserValue::Identifier && a->id == CSSValueAt) {
- 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(centerX);
- result->setFirstY(centerY);
- // Right now, CSS radial gradients have the same start and end centers.
- result->setSecondX(centerX);
- result->setSecondY(centerY);
- }
-
- 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.
- // <color-stop-list> = [ <color-stop> , <color-hint>? ]# , <color-stop>
- bool supportsColorHints = gradient->gradientType() == CSSLinearGradient
- || gradient->gradientType() == CSSRadialGradient;
-
- // The first color stop cannot be a color hint.
- bool previousStopWasColorHint = true;
- 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> ]?
- // <color-hint> = <length> | <percentage>
- CSSGradientColorStop stop;
- stop.m_color = parseColor(a);
-
- // Two hints in a row are not allowed.
- if (!stop.m_color && (!supportsColorHints || previousStopWasColorHint))
- return false;
- previousStopWasColorHint = !stop.m_color;
-
- if (stop.m_color)
- a = valueList->next();
-
- if (a) {
- if (validUnit(a, FLength | FPercent)) {
- stop.m_position = createPrimitiveNumericValue(a);
- a = valueList->next();
- }
- }
-
- if (!stop.m_color && !stop.m_position)
- return false;
-
- gradient->addStop(stop);
- expectComma = true;
- }
-
- // The last color stop cannot be a color hint.
- if (previousStopWasColorHint)
- return false;
-
- // 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->m_unit != CSSParserValue::Function)
- return false;
-
- if (val->function->id == CSSValueWebkitGradient) {
- // FIXME: This should send a deprecation message.
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitGradient);
- return parseDeprecatedGradient(valueList, value);
- }
-
- if (val->function->id == CSSValueWebkitLinearGradient) {
- // FIXME: This should send a deprecation message.
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitLinearGradient);
- return parseDeprecatedLinearGradient(valueList, value, NonRepeating);
- }
-
- if (val->function->id == CSSValueLinearGradient)
- return parseLinearGradient(valueList, value, NonRepeating);
-
- if (val->function->id == CSSValueWebkitRepeatingLinearGradient) {
- // FIXME: This should send a deprecation message.
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitRepeatingLinearGradient);
- return parseDeprecatedLinearGradient(valueList, value, Repeating);
- }
-
- if (val->function->id == CSSValueRepeatingLinearGradient)
- return parseLinearGradient(valueList, value, Repeating);
-
- if (val->function->id == CSSValueWebkitRadialGradient) {
- // FIXME: This should send a deprecation message.
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitRadialGradient);
- return parseDeprecatedRadialGradient(valueList, value, NonRepeating);
- }
-
- if (val->function->id == CSSValueRadialGradient)
- return parseRadialGradient(valueList, value, NonRepeating);
-
- if (val->function->id == CSSValueWebkitRepeatingRadialGradient) {
- if (m_context.useCounter())
- m_context.useCounter()->count(UseCounter::DeprecatedWebKitRepeatingRadialGradient);
- return parseDeprecatedRadialGradient(valueList, value, Repeating);
- }
-
- if (val->function->id == CSSValueRepeatingRadialGradient)
- return parseRadialGradient(valueList, value, Repeating);
-
- if (val->function->id == CSSValueWebkitCanvas)
- return parseCanvas(valueList, value);
-
- if (val->function->id == CSSValueWebkitCrossFade)
- 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;
- RefPtrWillBeRawPtr<CSSValue> fromImageValue = nullptr;
- RefPtrWillBeRawPtr<CSSValue> toImageValue = nullptr;
-
- // The first argument is the "from" image. It is a fill image.
- if (!args->current() || !parseFillImage(args, fromImageValue))
- return false;
- args->next();
-
- if (!consumeComma(args))
- return false;
-
- // The second argument is the "to" image. It is a fill image.
- if (!args->current() || !parseFillImage(args, toImageValue))
- return false;
- args->next();
-
- if (!consumeComma(args))
- return false;
-
- // The third argument is the crossfade value. It is a percentage or a fractional number.
- RefPtrWillBeRawPtr<CSSPrimitiveValue> percentage = nullptr;
- CSSParserValue* value = args->current();
- if (!value)
- return false;
-
- if (value->unit() == CSSPrimitiveValue::UnitType::Percentage)
- percentage = cssValuePool().createValue(clampTo<double>(value->fValue / 100, 0, 1), CSSPrimitiveValue::UnitType::Number);
- else if (value->unit() == CSSPrimitiveValue::UnitType::Number)
- percentage = cssValuePool().createValue(clampTo<double>(value->fValue, 0, 1), CSSPrimitiveValue::UnitType::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->m_unit != CSSParserValue::Identifier)
- return false;
-
- canvas = CSSCanvasValue::create(value->string);
- return true;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseImageSet(CSSParserValueList* valueList)
-{
- CSSParserValue* function = valueList->current();
-
- if (function->m_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();
-
- while (functionArgs->current()) {
- CSSParserValue* arg = functionArgs->current();
- if (arg->unit() != CSSPrimitiveValue::UnitType::URI)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSValue> image = createCSSImageValueWithReferrer(arg->string, completeURL(arg->string));
- imageSet->append(image);
-
- arg = functionArgs->next();
- if (!arg)
- return nullptr;
-
- if (arg->m_unit != CSSParserValue::DimensionList)
- return nullptr;
- ASSERT(arg->valueList->valueAt(0)->unit() == CSSPrimitiveValue::UnitType::Number);
- ASSERT(arg->valueList->valueAt(1)->m_unit == CSSParserValue::Identifier);
- if (String(arg->valueList->valueAt(1)->string) != "x")
- return nullptr;
- double imageScaleFactor = arg->valueList->valueAt(0)->fValue;
- if (imageScaleFactor <= 0)
- return nullptr;
- imageSet->append(cssValuePool().createValue(imageScaleFactor, CSSPrimitiveValue::UnitType::Number));
- functionArgs->next();
-
- // If there are no more arguments, we're done.
- if (!functionArgs->current())
- break;
-
- // If there are more arguments, they should be after a comma.
- if (!consumeComma(functionArgs))
- return nullptr;
- }
-
- return imageSet.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseWillChange()
-{
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated();
- if (m_valueList->current()->id == CSSValueAuto) {
- // FIXME: This will be read back as an empty string instead of auto
- return values.release();
- }
-
- // Every comma-separated list of identifiers is a valid will-change value,
- // unless the list includes an explicitly disallowed identifier.
- while (true) {
- CSSParserValue* currentValue = m_valueList->current();
- if (!currentValue || currentValue->m_unit != CSSParserValue::Identifier)
- return nullptr;
-
- CSSPropertyID unresolvedProperty = unresolvedCSSPropertyID(currentValue->string);
- if (unresolvedProperty) {
- ASSERT(CSSPropertyMetadata::isEnabledProperty(unresolvedProperty));
- // Now "all" is used by both CSSValue and CSSPropertyValue.
- // Need to return nullptr when currentValue is CSSPropertyAll.
- if (unresolvedProperty == CSSPropertyWillChange || unresolvedProperty == CSSPropertyAll)
- return nullptr;
- values->append(cssValuePool().createIdentifierValue(unresolvedProperty));
- } else {
- switch (currentValue->id) {
- case CSSValueNone:
- case CSSValueAll:
- case CSSValueAuto:
- case CSSValueDefault:
- case CSSValueInitial:
- case CSSValueInherit:
- return nullptr;
- case CSSValueContents:
- case CSSValueScrollPosition:
- values->append(cssValuePool().createIdentifierValue(currentValue->id));
- break;
- default:
- break;
- }
- }
-
- if (!m_valueList->next())
- break;
- if (!consumeComma(m_valueList))
- return nullptr;
- }
-
- return values.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSFunctionValue> CSSPropertyParser::parseBuiltinFilterArguments(CSSParserValueList* args, CSSValueID filterType)
-{
- RefPtrWillBeRawPtr<CSSFunctionValue> filterValue = CSSFunctionValue::create(filterType);
- ASSERT(args);
-
- switch (filterType) {
- case CSSValueGrayscale:
- case CSSValueSepia:
- case CSSValueSaturate:
- case CSSValueInvert:
- case CSSValueOpacity:
- case CSSValueContrast: {
- // One optional argument, 0-1 or 0%-100%, if missing use 100%.
- if (args->size()) {
- CSSParserValue* value = args->current();
- // FIXME (crbug.com/397061): Support calc expressions like calc(10% + 0.5)
- if (value->unit() != CSSPrimitiveValue::UnitType::Percentage && !validUnit(value, FNumber | FNonNeg))
- return nullptr;
-
- double amount = value->fValue;
- if (amount < 0)
- return nullptr;
-
- // Saturate and Contrast allow values over 100%.
- if (filterType != CSSValueSaturate
- && filterType != CSSValueContrast) {
- double maxAllowed = value->unit() == CSSPrimitiveValue::UnitType::Percentage ? 100.0 : 1.0;
- if (amount > maxAllowed)
- return nullptr;
- }
-
- filterValue->append(cssValuePool().createValue(amount, value->unit()));
- }
- break;
- }
- case CSSValueBrightness: {
- // One optional argument, if missing use 100%.
- if (args->size()) {
- CSSParserValue* value = args->current();
- // FIXME (crbug.com/397061): Support calc expressions like calc(10% + 0.5)
- if (value->unit() != CSSPrimitiveValue::UnitType::Percentage && !validUnit(value, FNumber))
- return nullptr;
-
- filterValue->append(cssValuePool().createValue(value->fValue, value->unit()));
- }
- break;
- }
- case CSSValueHueRotate: {
- // hue-rotate() takes one optional angle.
- if (args->size()) {
- CSSParserValue* argument = args->current();
- if (!validUnit(argument, FAngle, HTMLStandardMode))
- return nullptr;
-
- filterValue->append(createPrimitiveNumericValue(argument));
- }
- break;
- }
- case CSSValueBlur: {
- // Blur takes a single length. Zero parameters are allowed.
- if (args->size()) {
- CSSParserValue* argument = args->current();
- if (!validUnit(argument, FLength | FNonNeg, HTMLStandardMode))
- return nullptr;
-
- filterValue->append(createPrimitiveNumericValue(argument));
- }
- break;
- }
- case CSSValueDropShadow: {
- // drop-shadow() takes a single shadow.
- RefPtrWillBeRawPtr<CSSShadowValue> shadowValue = parseSingleShadow(args, false, true);
- if (!shadowValue)
- return nullptr;
- filterValue->append(shadowValue.release());
- break;
- }
- default:
- return nullptr;
- }
- 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::UnitType::URI && (value->m_unit != CSSParserValue::Function || !value->function))
- return nullptr;
-
- // See if the specified primitive is one we understand.
- if (value->unit() == CSSPrimitiveValue::UnitType::URI) {
- RefPtrWillBeRawPtr<CSSFunctionValue> referenceFilterValue = CSSFunctionValue::create(CSSValueUrl);
- referenceFilterValue->append(CSSSVGDocumentValue::create(value->string));
- list->append(referenceFilterValue.release());
- } else {
- CSSValueID filterType = value->function->id;
- unsigned maximumArgumentCount = filterType == CSSValueDropShadow ? 4 : 1;
-
- CSSParserValueList* args = value->function->args.get();
- if (!args || args->size() > maximumArgumentCount)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSFunctionValue> filterValue = parseBuiltinFilterArguments(args, filterType);
- if (!filterValue)
- return nullptr;
-
- list->append(filterValue);
- }
- }
-
- return list.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseTransformOrigin()
-{
- CSSParserValue* value = m_valueList->current();
- CSSValueID id = value->id;
- RefPtrWillBeRawPtr<CSSValue> xValue = nullptr;
- RefPtrWillBeRawPtr<CSSValue> yValue = nullptr;
- RefPtrWillBeRawPtr<CSSValue> zValue = nullptr;
- if (id == CSSValueLeft || id == CSSValueRight) {
- xValue = cssValuePool().createIdentifierValue(id);
- } else if (id == CSSValueTop || id == CSSValueBottom) {
- yValue = cssValuePool().createIdentifierValue(id);
- } else if (id == CSSValueCenter) {
- // Unresolved as to whether this is X or Y.
- } else if (validUnit(value, FPercent | FLength)) {
- xValue = createPrimitiveNumericValue(value);
- } else {
- return nullptr;
- }
-
- value = m_valueList->next();
- if (value) {
- id = value->id;
- if (!xValue && (id == CSSValueLeft || id == CSSValueRight)) {
- xValue = cssValuePool().createIdentifierValue(id);
- } else if (!yValue && (id == CSSValueTop || id == CSSValueBottom)) {
- yValue = cssValuePool().createIdentifierValue(id);
- } else if (id == CSSValueCenter) {
- // Resolved below.
- } else if (!yValue && validUnit(value, FPercent | FLength)) {
- yValue = createPrimitiveNumericValue(value);
- } else {
- return nullptr;
- }
-
- // If X or Y have not been resolved, they must be center.
- if (!xValue)
- xValue = cssValuePool().createIdentifierValue(CSSValueCenter);
- if (!yValue)
- yValue = cssValuePool().createIdentifierValue(CSSValueCenter);
-
- value = m_valueList->next();
- if (value) {
- if (!validUnit(value, FLength))
- return nullptr;
- zValue = createPrimitiveNumericValue(value);
-
- value = m_valueList->next();
- if (value)
- return nullptr;
- }
- } else if (!xValue) {
- if (yValue) {
- xValue = cssValuePool().createValue(50, CSSPrimitiveValue::UnitType::Percentage);
- } else {
- xValue = cssValuePool().createIdentifierValue(CSSValueCenter);
- }
- }
-
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- list->append(xValue.release());
- if (yValue)
- list->append(yValue.release());
- if (zValue)
- list->append(zValue.release());
- return list.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTouchAction()
-{
- 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));
- m_valueList->next();
- return list.release();
- }
-
- bool xSet = false;
- bool ySet = false;
- while (value) {
- switch (value->id) {
- case CSSValuePanX:
- case CSSValuePanRight:
- case CSSValuePanLeft: {
- if (xSet)
- return nullptr;
- xSet = true;
- if (value->id != CSSValuePanX && !RuntimeEnabledFeatures::cssTouchActionPanDirectionsEnabled())
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSValue> panValue = cssValuePool().createIdentifierValue(value->id);
- list->append(panValue.release());
- break;
- }
- case CSSValuePanY:
- case CSSValuePanDown:
- case CSSValuePanUp: {
- if (ySet)
- return nullptr;
- ySet = true;
- if (value->id != CSSValuePanY && !RuntimeEnabledFeatures::cssTouchActionPanDirectionsEnabled())
- return nullptr;
- RefPtrWillBeRawPtr<CSSValue> panValue = cssValuePool().createIdentifierValue(value->id);
- list->append(panValue.release());
- break;
- }
- default:
- return nullptr;
- }
- value = m_valueList->next();
- }
-
- if (list->length())
- return list.release();
-
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTextDecoration()
-{
- CSSParserValue* value = m_valueList->current();
- if (value && value->id == CSSValueNone) {
- m_valueList->next();
- return cssValuePool().createIdentifierValue(CSSValueNone);
- }
-
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- bool isValid = true;
- while (isValid && value) {
- switch (value->id) {
- case CSSValueUnderline:
- case CSSValueOverline:
- case CSSValueLineThrough:
- case CSSValueBlink:
- // TODO(timloh): This will incorrectly accept "blink blink"
- 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())
- return list.release();
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTextEmphasisStyle()
-{
- RefPtrWillBeRawPtr<CSSPrimitiveValue> fill = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> shape = nullptr;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if (value->unit() == CSSPrimitiveValue::UnitType::String) {
- if (fill || shape)
- return nullptr;
- m_valueList->next();
- return createPrimitiveStringValue(value);
- }
-
- if (value->id == CSSValueNone) {
- if (fill || shape)
- return nullptr;
- m_valueList->next();
- return cssValuePool().createIdentifierValue(CSSValueNone);
- }
-
- if (value->id == CSSValueOpen || value->id == CSSValueFilled) {
- if (fill)
- return nullptr;
- 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 nullptr;
- shape = cssValuePool().createIdentifierValue(value->id);
- } else {
- break;
- }
- }
-
- if (fill && shape) {
- RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated();
- parsedValues->append(fill.release());
- parsedValues->append(shape.release());
- return parsedValues.release();
- }
- if (fill)
- return fill.release();
- if (shape)
- return shape.release();
-
- return nullptr;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTextIndent()
-{
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
-
- bool hasLengthOrPercentage = false;
- bool hasEachLine = false;
- bool hasHanging = false;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- // <length> | <percentage> | inherit when RuntimeEnabledFeatures::css3TextEnabled() returns false
- if (!hasLengthOrPercentage && validUnit(value, FLength | FPercent | FUnitlessQuirk)) {
- list->append(createPrimitiveNumericValue(value));
- hasLengthOrPercentage = true;
- continue;
- }
-
- // [ <length> | <percentage> ] && hanging? && each-line? | inherit
- // when RuntimeEnabledFeatures::css3TextEnabled() returns true
- if (RuntimeEnabledFeatures::css3TextEnabled()) {
- if (!hasEachLine && value->id == CSSValueEachLine) {
- list->append(cssValuePool().createIdentifierValue(CSSValueEachLine));
- hasEachLine = true;
- continue;
- }
- if (!hasHanging && value->id == CSSValueHanging) {
- list->append(cssValuePool().createIdentifierValue(CSSValueHanging));
- hasHanging = true;
- continue;
- }
- }
- return nullptr;
- }
-
- if (!hasLengthOrPercentage)
- return nullptr;
-
- return list.release();
-}
-
-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::UnitType::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::UnitType::Number && value->isInt && value->fValue >= 0) {
- tagValue = clampTo<int>(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;
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseFontFeatureSettings()
-{
- RefPtrWillBeRawPtr<CSSValueList> settings = CSSValueList::createCommaSeparated();
- while (true) {
- if (!m_valueList->current() || !parseFontFeatureTag(settings.get()))
- return nullptr;
- if (!m_valueList->current())
- break;
- if (!consumeComma(m_valueList))
- return nullptr;
- }
- return settings.release();
-}
-
-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->m_unit != CSSParserValue::Identifier)
- 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));
-
- CSSParserTokenRange args = value->calcFunction->args;
-
- ASSERT(!m_parsedCalculation);
- m_parsedCalculation = CSSCalcValue::create(args, range);
-
- if (!m_parsedCalculation)
- return false;
-
- return true;
-}
-
-bool CSSPropertyParser::parseFontFaceDescriptor(CSSPropertyID propId)
-{
- CSSParserValue* value = m_valueList->current();
- ASSERT(value);
- CSSValueID id = value->id;
- RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr;
-
- switch (propId) {
- case CSSPropertyFontFamily:
- // <family-name>
- // TODO(rwlbuis): check there is only one family-name
- parsedValue = parseFontFamily();
- break;
- case CSSPropertySrc: // This is a list of urls or local references.
- parsedValue = parseFontFaceSrc();
- break;
- case CSSPropertyUnicodeRange:
- parsedValue = parseFontFaceUnicodeRange();
- break;
- case CSSPropertyFontWeight: // normal | bold | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900
- return parseFontWeight(false) && !m_valueList->next();
- case CSSPropertyFontStretch:
- case CSSPropertyFontStyle:
- if (!CSSParserFastPaths::isValidKeywordPropertyAndValue(propId, id))
- return false;
- addProperty(propId, cssValuePool().createIdentifierValue(id), false);
- return true;
- case CSSPropertyFontVariant: // normal | small-caps | inherit
- return parseFontVariant(false);
- case CSSPropertyWebkitFontFeatureSettings:
- if (id == CSSValueNormal) {
- parsedValue = cssValuePool().createIdentifierValue(CSSValueNormal);
- m_valueList->next();
- } else {
- parsedValue = parseFontFeatureSettings();
- }
- break;
- default:
- break;
- }
-
- if (!parsedValue || m_valueList->current())
- return false;
-
- addProperty(propId, parsedValue.release(), 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 = 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 = 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 = nullptr;
- 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 unresolvedCSSPropertyID(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);
- if (!hashTableEntry)
- return CSSPropertyInvalid;
- CSSPropertyID property = static_cast<CSSPropertyID>(hashTableEntry->id);
- if (!CSSPropertyMetadata::isEnabledProperty(property))
- return CSSPropertyInvalid;
- return property;
-}
-
-CSSPropertyID unresolvedCSSPropertyID(const String& string)
-{
- unsigned length = string.length();
-
- if (!length)
- return CSSPropertyInvalid;
- if (length > maxCSSPropertyNameLength)
- return CSSPropertyInvalid;
-
- return string.is8Bit() ? unresolvedCSSPropertyID(string.characters8(), length) : unresolvedCSSPropertyID(string.characters16(), length);
-}
-
-CSSPropertyID unresolvedCSSPropertyID(const CSSParserString& string)
-{
- unsigned length = string.length();
-
- if (!length)
- return CSSPropertyInvalid;
- if (length > maxCSSPropertyNameLength)
- return CSSPropertyInvalid;
-
- return string.is8Bit() ? unresolvedCSSPropertyID(string.characters8(), length) : unresolvedCSSPropertyID(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 CSSPropertyParser::isSystemColor(CSSValueID id)
-{
- return (id >= CSSValueActiveborder && id <= CSSValueWindowtext) || id == CSSValueMenu;
-}
-
-bool CSSPropertyParser::parseSVGValue(CSSPropertyID propId, bool important)
-{
- CSSParserValue* value = m_valueList->current();
- ASSERT(value);
-
- CSSValueID id = value->id;
-
- bool validPrimitive = false;
- RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr;
-
- 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 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 CSSPropertyClipPath:
- case CSSPropertyFilter:
- case CSSPropertyMarkerStart:
- case CSSPropertyMarkerMid:
- case CSSPropertyMarkerEnd:
- case CSSPropertyMask:
- if (id == CSSValueNone) {
- validPrimitive = true;
- } else if (value->unit() == CSSPrimitiveValue::UnitType::URI) {
- parsedValue = CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::UnitType::URI);
- if (parsedValue)
- m_valueList->next();
- }
- break;
-
- case CSSPropertyStrokeMiterlimit: // <miterlimit> | inherit
- validPrimitive = validUnit(value, FNumber | FNonNeg, SVGAttributeMode);
- break;
-
- case CSSPropertyStrokeOpacity: // <opacity-value> | inherit
- case CSSPropertyFillOpacity:
- case CSSPropertyStopOpacity:
- case CSSPropertyFloodOpacity:
- validPrimitive = validUnit(value, FNumber | FPercent, SVGAttributeMode);
- break;
-
- /* Start of supported CSS properties with validation. This is needed for parseShortHand to work
- * correctly and allows optimization in applyRule(..)
- */
-
- 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::UnitType::Degrees || value->unit() == CSSPrimitiveValue::UnitType::Number) {
- parsedValue = CSSPrimitiveValue::create(value->fValue, CSSPrimitiveValue::UnitType::Degrees);
-
- if (parsedValue)
- m_valueList->next();
- }
- break;
-
- case CSSPropertyFill: // <paint> | inherit
- case CSSPropertyStroke: // <paint> | inherit
- {
- if (id == CSSValueNone) {
- parsedValue = cssValuePool().createIdentifierValue(id);
- } else if (value->unit() == CSSPrimitiveValue::UnitType::URI) {
- if (m_valueList->next()) {
- RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated();
- values->append(CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::UnitType::URI));
- if (m_valueList->current()->id == CSSValueNone)
- parsedValue = cssValuePool().createIdentifierValue(m_valueList->current()->id);
- else
- parsedValue = parseColor(m_valueList->current());
- if (parsedValue) {
- values->append(parsedValue);
- parsedValue = values;
- }
- }
- if (!parsedValue)
- parsedValue = CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::UnitType::URI);
- } else {
- parsedValue = parseColor(m_valueList->current());
- }
-
- if (parsedValue)
- m_valueList->next();
- }
- break;
-
- case CSSPropertyStopColor: // TODO : icccolor
- case CSSPropertyFloodColor:
- case CSSPropertyLightingColor:
- parsedValue = parseColor(m_valueList->current());
- if (parsedValue)
- m_valueList->next();
-
- break;
-
- case CSSPropertyPaintOrder:
- if (m_valueList->size() == 1 && id == CSSValueNormal)
- validPrimitive = true;
- else if ((parsedValue = parsePaintOrder()))
- m_valueList->next();
- break;
-
- case CSSPropertyStrokeWidth: // <length> | inherit
- case CSSPropertyStrokeDashoffset:
- case CSSPropertyCx:
- case CSSPropertyCy:
- case CSSPropertyX:
- case CSSPropertyY:
- case CSSPropertyR:
- case CSSPropertyRx:
- case CSSPropertyRy:
- validPrimitive = validUnit(value, FLength | FPercent, SVGAttributeMode);
- break;
- case CSSPropertyStrokeDasharray: // none | <dasharray> | inherit
- if (id == CSSValueNone)
- validPrimitive = true;
- else
- parsedValue = parseSVGStrokeDasharray();
- break;
-
- /* shorthand properties */
- case CSSPropertyMarker: {
- ShorthandScope scope(this, propId);
- CSSPropertyParser::ImplicitScope implicitScope(this);
- 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::UnitType::String)
- parsedValue = CSSPrimitiveValue::create(value->string, value->unit());
- else if (value->unit() >= CSSPrimitiveValue::UnitType::Number && value->unit() <= CSSPrimitiveValue::UnitType::Kilohertz)
- parsedValue = CSSPrimitiveValue::create(value->fValue, value->unit());
- else if (value->unit() == CSSPrimitiveValue::UnitType::Rems || value->unit() == CSSPrimitiveValue::UnitType::Chs)
- parsedValue = CSSPrimitiveValue::create(value->fValue, value->unit());
- else if (value->unit() == CSSPrimitiveValue::UnitType::QuirkyEms)
- parsedValue = CSSPrimitiveValue::create(value->fValue, CSSPrimitiveValue::UnitType::QuirkyEms);
- 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::UnitType::Number && value->unit() <= CSSPrimitiveValue::UnitType::Kilohertz)
- ret->append(CSSPrimitiveValue::create(value->fValue, value->unit()));
- else if (value->unit() == CSSPrimitiveValue::UnitType::Rems || value->unit() == CSSPrimitiveValue::UnitType::Chs)
- ret->append(CSSPrimitiveValue::create(value->fValue, value->unit()));
- value = m_valueList->next();
- bool commaConsumed = consumeComma(m_valueList);
- value = m_valueList->current();
- if (commaConsumed && !value)
- return nullptr;
- }
- if (!validPrimitive)
- return nullptr;
- return ret.release();
-}
-
-// normal | [ fill || stroke || markers ]
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parsePaintOrder() const
-{
- if (m_valueList->size() > 3)
- return nullptr;
-
- CSSParserValue* value = m_valueList->current();
- ASSERT(value);
-
- Vector<CSSValueID, 3> paintTypeList;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> fill = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> stroke = nullptr;
- RefPtrWillBeRawPtr<CSSPrimitiveValue> markers = nullptr;
- while (value) {
- if (value->id == CSSValueFill && !fill)
- fill = CSSPrimitiveValue::createIdentifier(value->id);
- else if (value->id == CSSValueStroke && !stroke)
- stroke = CSSPrimitiveValue::createIdentifier(value->id);
- else if (value->id == CSSValueMarkers && !markers)
- markers = CSSPrimitiveValue::createIdentifier(value->id);
- else
- return nullptr;
- paintTypeList.append(value->id);
- value = m_valueList->next();
- }
-
- // After parsing we serialize the paint-order list. Since it is not possible to
- // pop a last list items from CSSValueList without bigger cost, we create the
- // list after parsing.
- CSSValueID firstPaintOrderType = paintTypeList.at(0);
- RefPtrWillBeRawPtr<CSSValueList> paintOrderList = CSSValueList::createSpaceSeparated();
- switch (firstPaintOrderType) {
- case CSSValueFill:
- case CSSValueStroke:
- paintOrderList->append(firstPaintOrderType == CSSValueFill ? fill.release() : stroke.release());
- if (paintTypeList.size() > 1) {
- if (paintTypeList.at(1) == CSSValueMarkers)
- paintOrderList->append(markers.release());
- }
- break;
- case CSSValueMarkers:
- paintOrderList->append(markers.release());
- if (paintTypeList.size() > 1) {
- if (paintTypeList.at(1) == CSSValueStroke)
- paintOrderList->append(stroke.release());
- }
- break;
- default:
- ASSERT_NOT_REACHED();
- }
-
- return paintOrderList.release();
-}
-
-class TransformOperationInfo {
-public:
- TransformOperationInfo(CSSValueID id)
- : m_validID(true)
- , m_allowSingleArgument(false)
- , m_argCount(1)
- , m_unit(CSSPropertyParser::FUnknown)
- {
- switch (id) {
- case CSSValueSkew:
- m_unit = CSSPropertyParser::FAngle;
- m_allowSingleArgument = true;
- m_argCount = 3;
- break;
- case CSSValueScale:
- m_unit = CSSPropertyParser::FNumber;
- m_allowSingleArgument = true;
- m_argCount = 3;
- break;
- case CSSValueSkewX:
- m_unit = CSSPropertyParser::FAngle;
- break;
- case CSSValueSkewY:
- m_unit = CSSPropertyParser::FAngle;
- break;
- case CSSValueMatrix:
- m_unit = CSSPropertyParser::FNumber;
- m_argCount = 11;
- break;
- case CSSValueRotate:
- m_unit = CSSPropertyParser::FAngle;
- break;
- case CSSValueScaleX:
- m_unit = CSSPropertyParser::FNumber;
- break;
- case CSSValueScaleY:
- m_unit = CSSPropertyParser::FNumber;
- break;
- case CSSValueScaleZ:
- m_unit = CSSPropertyParser::FNumber;
- break;
- case CSSValueScale3d:
- m_unit = CSSPropertyParser::FNumber;
- m_argCount = 5;
- break;
- case CSSValueRotateX:
- m_unit = CSSPropertyParser::FAngle;
- break;
- case CSSValueRotateY:
- m_unit = CSSPropertyParser::FAngle;
- break;
- case CSSValueRotateZ:
- m_unit = CSSPropertyParser::FAngle;
- break;
- case CSSValueMatrix3d:
- m_unit = CSSPropertyParser::FNumber;
- m_argCount = 31;
- break;
- case CSSValueRotate3d:
- m_unit = CSSPropertyParser::FNumber;
- m_argCount = 7;
- break;
- case CSSValueTranslate:
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- m_allowSingleArgument = true;
- m_argCount = 3;
- break;
- case CSSValueTranslateX:
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- break;
- case CSSValueTranslateY:
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- break;
- case CSSValueTranslateZ:
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- break;
- case CSSValuePerspective:
- m_unit = CSSPropertyParser::FNumber;
- break;
- case CSSValueTranslate3d:
- m_unit = CSSPropertyParser::FLength | CSSPropertyParser::FPercent;
- m_argCount = 5;
- break;
- default:
- m_validID = false;
- break;
- }
- }
-
- bool validID() const { return m_validID; }
- unsigned argCount() const { return m_argCount; }
- CSSPropertyParser::Units unit() const { return m_unit; }
-
- bool hasCorrectArgCount(unsigned argCount) { return m_argCount == argCount || (m_allowSingleArgument && argCount == 1); }
-
-private:
- bool m_validID;
- bool m_allowSingleArgument;
- unsigned m_argCount;
- CSSPropertyParser::Units m_unit;
-};
-
-PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseTransform(bool useLegacyParsing)
-{
- if (!m_valueList)
- return nullptr;
-
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- RefPtrWillBeRawPtr<CSSValue> parsedTransformValue = parseTransformValue(useLegacyParsing, value);
- if (!parsedTransformValue)
- return nullptr;
-
- list->append(parsedTransformValue.release());
- }
-
- return list.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTransformValue(bool useLegacyParsing, CSSParserValue *value)
-{
- if (value->m_unit != CSSParserValue::Function || !value->function)
- return nullptr;
-
- // Every primitive requires at least one argument.
- CSSParserValueList* args = value->function->args.get();
- if (!args)
- return nullptr;
-
- // See if the specified primitive is one we understand.
- CSSValueID type = value->function->id;
- TransformOperationInfo info(type);
- if (!info.validID())
- return nullptr;
-
- if (!info.hasCorrectArgCount(args->size()))
- return nullptr;
-
- // The transform is a list of functional primitives that specify transform operations.
- // We collect a list of CSSFunctionValues, where each value specifies a single operation.
-
- // Create the new CSSFunctionValue for this operation and add it to our list.
- RefPtrWillBeRawPtr<CSSFunctionValue> transformValue = CSSFunctionValue::create(type);
-
- // Snag our values.
- CSSParserValue* a = args->current();
- unsigned argNumber = 0;
- while (a) {
- CSSPropertyParser::Units unit = info.unit();
-
- if (type == CSSValueRotate3d && argNumber == 3) {
- // 4th param of rotate3d() is an angle rather than a bare number, validate it as such
- if (!validUnit(a, FAngle, HTMLStandardMode))
- return nullptr;
- } else if (type == CSSValueTranslate3d && argNumber == 2) {
- // 3rd param of translate3d() cannot be a percentage
- if (!validUnit(a, FLength, HTMLStandardMode))
- return nullptr;
- } else if (type == CSSValueTranslateZ && !argNumber) {
- // 1st param of translateZ() cannot be a percentage
- if (!validUnit(a, FLength, HTMLStandardMode))
- return nullptr;
- } else if (type == CSSValuePerspective && !argNumber) {
- // 1st param of perspective() must be a non-negative number (deprecated) or length.
- if (!validUnit(a, FLength | FNonNeg, HTMLStandardMode)) {
- if (useLegacyParsing && validUnit(a, FNumber | FNonNeg, HTMLStandardMode)) {
- a->setUnit(CSSPrimitiveValue::UnitType::Pixels);
- } else {
- return nullptr;
- }
- }
- } else if (!validUnit(a, unit, HTMLStandardMode)) {
- return nullptr;
- }
-
- // Add the value to the current transform operation.
- transformValue->append(createPrimitiveNumericValue(a));
-
- a = args->next();
- if (!a)
- break;
- if (!isComma(a))
- return nullptr;
- a = args->next();
-
- argNumber++;
- }
-
- return transformValue.release();
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseMotionPath()
-{
- CSSParserValue* value = m_valueList->current();
-
- // FIXME: Add support for <url>, <basic-shape>, <geometry-box>.
- if (value->m_unit != CSSParserValue::Function || value->function->id != CSSValuePath)
- return nullptr;
-
- // FIXME: Add support for <fill-rule>.
- CSSParserValueList* functionArgs = value->function->args.get();
- if (!functionArgs || functionArgs->size() != 1 || !functionArgs->current())
- return nullptr;
-
- CSSParserValue* arg = functionArgs->current();
- if (arg->unit() != CSSPrimitiveValue::UnitType::String)
- return nullptr;
-
- String pathString = arg->string;
- Path path;
- if (!buildPathFromString(pathString, path))
- return nullptr;
-
- m_valueList->next();
- return CSSPathValue::create(pathString);
-}
-
-PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseMotionRotation()
-{
- RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated();
- bool hasAutoOrReverse = false;
- bool hasAngle = false;
-
- for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) {
- if ((value->id == CSSValueAuto || value->id == CSSValueReverse) && !hasAutoOrReverse) {
- list->append(cssValuePool().createIdentifierValue(value->id));
- hasAutoOrReverse = true;
- } else if (!hasAngle && validUnit(value, FAngle)) {
- list->append(createPrimitiveNumericValue(value));
- hasAngle = true;
- } else {
- break;
- }
- }
-
- if (!list->length())
- return nullptr;
-
- return list.release();
}
} // namespace blink
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