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 |