Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2003 Lars Knoll (knoll@kde.org) |
| 3 | * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com) |
| 4 | * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved. |
| 5 | * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com> |
| 6 | * Copyright (C) 2008 Eric Seidel <eric@webkit.org> |
| 7 | * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) |
| 8 | * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. |
| 9 | * Copyright (C) 2012 Intel Corporation. All rights reserved. |
| 10 | * |
| 11 | * This library is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU Library General Public |
| 13 | * License as published by the Free Software Foundation; either |
| 14 | * version 2 of the License, or (at your option) any later version. |
| 15 | * |
| 16 | * This library is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 19 | * Library General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU Library General Public License |
| 22 | * along with this library; see the file COPYING.LIB. If not, write to |
| 23 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 24 | * Boston, MA 02110-1301, USA. |
| 25 | */ |
| 26 | |
| 27 | #include "config.h" |
| 28 | #include "core/css/parser/CSSPropertyParser.h" |
| 29 | #include "RuntimeEnabledFeatures.h" |
| 30 | #include "core/rendering/RenderTheme.h" |
| 31 | #include "core/svg/SVGPaint.h" |
| 32 | // FIXME: Way too many! |
| 33 | #include "CSSValueKeywords.h" |
| 34 | #include "RuntimeEnabledFeatures.h" |
| 35 | #include "StylePropertyShorthand.h" |
| 36 | #include "core/css/CSSArrayFunctionValue.h" |
| 37 | #include "core/css/CSSAspectRatioValue.h" |
| 38 | #include "core/css/CSSBasicShapes.h" |
| 39 | #include "core/css/CSSBorderImage.h" |
| 40 | #include "core/css/CSSCanvasValue.h" |
| 41 | #include "core/css/CSSCrossfadeValue.h" |
| 42 | #include "core/css/CSSCursorImageValue.h" |
| 43 | #include "core/css/CSSFontFaceSrcValue.h" |
| 44 | #include "core/css/CSSFontFeatureValue.h" |
| 45 | #include "core/css/CSSFunctionValue.h" |
| 46 | #include "core/css/CSSGradientValue.h" |
| 47 | #include "core/css/CSSGridLineNamesValue.h" |
| 48 | #include "core/css/CSSGridTemplateAreasValue.h" |
| 49 | #include "core/css/CSSImageSetValue.h" |
| 50 | #include "core/css/CSSImageValue.h" |
| 51 | #include "core/css/CSSInheritedValue.h" |
| 52 | #include "core/css/CSSInitialValue.h" |
| 53 | #include "core/css/CSSKeyframeRule.h" |
| 54 | #include "core/css/CSSKeyframesRule.h" |
| 55 | #include "core/css/CSSLineBoxContainValue.h" |
| 56 | #include "core/css/CSSParserValues.h" |
| 57 | #include "core/css/CSSPrimitiveValue.h" |
| 58 | #include "core/css/CSSPropertySourceData.h" |
| 59 | #include "core/css/CSSReflectValue.h" |
| 60 | #include "core/css/CSSSVGDocumentValue.h" |
| 61 | #include "core/css/CSSSelector.h" |
| 62 | #include "core/css/CSSShadowValue.h" |
| 63 | #include "core/css/CSSTimingFunctionValue.h" |
| 64 | #include "core/css/CSSTransformValue.h" |
| 65 | #include "core/css/CSSUnicodeRangeValue.h" |
| 66 | #include "core/css/CSSValueList.h" |
| 67 | #include "core/css/CSSValuePool.h" |
| 68 | #include "core/css/Counter.h" |
| 69 | #include "core/css/HashTools.h" |
| 70 | #include "core/css/Pair.h" |
| 71 | #include "core/css/Rect.h" |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 72 | #include "core/css/RuntimeCSSEnabled.h" |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 73 | #include "core/css/parser/CSSParserIdioms.h" |
| 74 | #include "core/html/parser/HTMLParserIdioms.h" |
| 75 | #include "core/inspector/InspectorInstrumentation.h" |
| 76 | #include "core/rendering/RenderTheme.h" |
| 77 | #include "core/svg/SVGParserUtilities.h" |
| 78 | #include "platform/FloatConversion.h" |
| 79 | #include "wtf/BitArray.h" |
| 80 | #include "wtf/HexNumber.h" |
| 81 | #include "wtf/text/StringBuffer.h" |
| 82 | #include "wtf/text/StringBuilder.h" |
| 83 | #include "wtf/text/StringImpl.h" |
| 84 | #include "wtf/text/TextEncoding.h" |
| 85 | #include <limits.h> |
| 86 | |
| 87 | using namespace std; |
| 88 | |
| 89 | namespace WebCore { |
| 90 | |
| 91 | static const double MAX_SCALE = 1000000; |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 92 | static const unsigned minRepetitions = 10000; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 93 | |
| 94 | template <unsigned N> |
| 95 | static bool equal(const CSSParserString& a, const char (&b)[N]) |
| 96 | { |
| 97 | unsigned length = N - 1; // Ignore the trailing null character |
| 98 | if (a.length() != length) |
| 99 | return false; |
| 100 | |
| 101 | return a.is8Bit() ? WTF::equal(a.characters8(), reinterpret_cast<const LChar*>(b), length) : WTF::equal(a.characters16(), reinterpret_cast<const LChar*>(b), length); |
| 102 | } |
| 103 | |
| 104 | template <unsigned N> |
| 105 | static bool equalIgnoringCase(const CSSParserString& a, const char (&b)[N]) |
| 106 | { |
| 107 | unsigned length = N - 1; // Ignore the trailing null character |
| 108 | if (a.length() != length) |
| 109 | return false; |
| 110 | |
| 111 | return a.is8Bit() ? WTF::equalIgnoringCase(b, a.characters8(), length) : WTF::equalIgnoringCase(b, a.characters16(), length); |
| 112 | } |
| 113 | |
| 114 | template <unsigned N> |
| 115 | static bool equalIgnoringCase(CSSParserValue* value, const char (&b)[N]) |
| 116 | { |
| 117 | ASSERT(value->unit == CSSPrimitiveValue::CSS_IDENT || value->unit == CSSPrimitiveValue::CSS_STRING); |
| 118 | return equalIgnoringCase(value->string, b); |
| 119 | } |
| 120 | |
| 121 | static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createPrimitiveValuePair(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> first, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> second, Pair::IdenticalValuesPolicy identicalValuesPolicy = Pair::DropIdenticalValues) |
| 122 | { |
| 123 | return cssValuePool().createValue(Pair::create(first, second, identicalValuesPolicy)); |
| 124 | } |
| 125 | |
| 126 | class AnimationParseContext { |
| 127 | public: |
| 128 | AnimationParseContext() |
| 129 | : m_animationPropertyKeywordAllowed(true) |
| 130 | , m_firstAnimationCommitted(false) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 131 | { |
| 132 | } |
| 133 | |
| 134 | void commitFirstAnimation() |
| 135 | { |
| 136 | m_firstAnimationCommitted = true; |
| 137 | } |
| 138 | |
| 139 | bool hasCommittedFirstAnimation() const |
| 140 | { |
| 141 | return m_firstAnimationCommitted; |
| 142 | } |
| 143 | |
| 144 | void commitAnimationPropertyKeyword() |
| 145 | { |
| 146 | m_animationPropertyKeywordAllowed = false; |
| 147 | } |
| 148 | |
| 149 | bool animationPropertyKeywordAllowed() const |
| 150 | { |
| 151 | return m_animationPropertyKeywordAllowed; |
| 152 | } |
| 153 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 154 | private: |
| 155 | bool m_animationPropertyKeywordAllowed; |
| 156 | bool m_firstAnimationCommitted; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 157 | }; |
| 158 | |
| 159 | CSSPropertyParser::CSSPropertyParser(OwnPtr<CSSParserValueList>& valueList, |
| 160 | const CSSParserContext& context, bool inViewport, bool savedImportant, |
| 161 | WillBeHeapVector<CSSProperty, 256>& parsedProperties, bool& hasFontFaceOnlyValues) |
| 162 | : m_valueList(valueList) |
| 163 | , m_context(context) |
| 164 | , m_inViewport(inViewport) |
| 165 | , m_important(savedImportant) // See comment in header, should be removed. |
| 166 | , m_parsedProperties(parsedProperties) |
| 167 | , m_hasFontFaceOnlyValues(hasFontFaceOnlyValues) |
| 168 | , m_inParseShorthand(0) |
| 169 | , m_currentShorthand(CSSPropertyInvalid) |
| 170 | , m_implicitShorthand(false) |
| 171 | { |
| 172 | } |
| 173 | |
| 174 | CSSPropertyParser::~CSSPropertyParser() |
| 175 | { |
| 176 | } |
| 177 | |
| 178 | void CSSPropertyParser::addPropertyWithPrefixingVariant(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> value, bool important, bool implicit) |
| 179 | { |
| 180 | RefPtrWillBeRawPtr<CSSValue> val = value.get(); |
| 181 | addProperty(propId, value, important, implicit); |
| 182 | |
| 183 | CSSPropertyID prefixingVariant = prefixingVariantForPropertyId(propId); |
| 184 | if (prefixingVariant == propId) |
| 185 | return; |
| 186 | |
| 187 | if (m_currentShorthand) { |
| 188 | // We can't use ShorthandScope here as we can already be inside one (e.g we are parsing CSSTransition). |
| 189 | m_currentShorthand = prefixingVariantForPropertyId(m_currentShorthand); |
| 190 | addProperty(prefixingVariant, val.release(), important, implicit); |
| 191 | m_currentShorthand = prefixingVariantForPropertyId(m_currentShorthand); |
| 192 | } else { |
| 193 | addProperty(prefixingVariant, val.release(), important, implicit); |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | void CSSPropertyParser::addProperty(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> value, bool important, bool implicit) |
| 198 | { |
| 199 | // This property doesn't belong to a shorthand. |
| 200 | if (!m_currentShorthand) { |
| 201 | m_parsedProperties.append(CSSProperty(propId, value, important, false, CSSPropertyInvalid, m_implicitShorthand || implicit)); |
| 202 | return; |
| 203 | } |
| 204 | |
| 205 | Vector<StylePropertyShorthand, 4> shorthands; |
| 206 | getMatchingShorthandsForLonghand(propId, &shorthands); |
| 207 | // The longhand does not belong to multiple shorthands. |
| 208 | if (shorthands.size() == 1) |
| 209 | m_parsedProperties.append(CSSProperty(propId, value, important, true, CSSPropertyInvalid, m_implicitShorthand || implicit)); |
| 210 | else |
| 211 | m_parsedProperties.append(CSSProperty(propId, value, important, true, indexOfShorthandForLonghand(m_currentShorthand, shorthands), m_implicitShorthand || implicit)); |
| 212 | } |
| 213 | |
| 214 | void CSSPropertyParser::rollbackLastProperties(int num) |
| 215 | { |
| 216 | ASSERT(num >= 0); |
| 217 | ASSERT(m_parsedProperties.size() >= static_cast<unsigned>(num)); |
| 218 | m_parsedProperties.shrink(m_parsedProperties.size() - num); |
| 219 | } |
| 220 | |
| 221 | KURL CSSPropertyParser::completeURL(const String& url) const |
| 222 | { |
| 223 | return m_context.completeURL(url); |
| 224 | } |
| 225 | |
| 226 | bool CSSPropertyParser::validCalculationUnit(CSSParserValue* value, Units unitflags, ReleaseParsedCalcValueCondition releaseCalc) |
| 227 | { |
| 228 | bool mustBeNonNegative = unitflags & FNonNeg; |
| 229 | |
| 230 | if (!parseCalculation(value, mustBeNonNegative ? ValueRangeNonNegative : ValueRangeAll)) |
| 231 | return false; |
| 232 | |
| 233 | bool b = false; |
| 234 | switch (m_parsedCalculation->category()) { |
| 235 | case CalcLength: |
| 236 | b = (unitflags & FLength); |
| 237 | break; |
| 238 | case CalcPercent: |
| 239 | b = (unitflags & FPercent); |
| 240 | if (b && mustBeNonNegative && m_parsedCalculation->isNegative()) |
| 241 | b = false; |
| 242 | break; |
| 243 | case CalcNumber: |
| 244 | b = (unitflags & FNumber); |
| 245 | if (!b && (unitflags & FInteger) && m_parsedCalculation->isInt()) |
| 246 | b = true; |
| 247 | if (b && mustBeNonNegative && m_parsedCalculation->isNegative()) |
| 248 | b = false; |
| 249 | break; |
| 250 | case CalcPercentLength: |
| 251 | b = (unitflags & FPercent) && (unitflags & FLength); |
| 252 | break; |
| 253 | case CalcPercentNumber: |
| 254 | b = (unitflags & FPercent) && (unitflags & FNumber); |
| 255 | break; |
| 256 | case CalcOther: |
| 257 | break; |
| 258 | } |
| 259 | if (!b || releaseCalc == ReleaseParsedCalcValue) |
| 260 | m_parsedCalculation.release(); |
| 261 | return b; |
| 262 | } |
| 263 | |
| 264 | inline bool CSSPropertyParser::shouldAcceptUnitLessValues(CSSParserValue* value, Units unitflags, CSSParserMode cssParserMode) |
| 265 | { |
| 266 | // Quirks mode and presentation attributes accept unit less values. |
| 267 | return (unitflags & (FLength | FAngle | FTime)) && (!value->fValue || isUnitLessLengthParsingEnabledForMode(cssParserMode)); |
| 268 | } |
| 269 | |
| 270 | bool CSSPropertyParser::validUnit(CSSParserValue* value, Units unitflags, CSSParserMode cssParserMode, ReleaseParsedCalcValueCondition releaseCalc) |
| 271 | { |
| 272 | if (isCalculation(value)) |
| 273 | return validCalculationUnit(value, unitflags, releaseCalc); |
| 274 | |
| 275 | bool b = false; |
| 276 | switch (value->unit) { |
| 277 | case CSSPrimitiveValue::CSS_NUMBER: |
| 278 | b = (unitflags & FNumber); |
| 279 | if (!b && shouldAcceptUnitLessValues(value, unitflags, cssParserMode)) { |
| 280 | value->unit = (unitflags & FLength) ? CSSPrimitiveValue::CSS_PX : |
| 281 | ((unitflags & FAngle) ? CSSPrimitiveValue::CSS_DEG : CSSPrimitiveValue::CSS_MS); |
| 282 | b = true; |
| 283 | } |
| 284 | if (!b && (unitflags & FInteger) && value->isInt) |
| 285 | b = true; |
| 286 | if (!b && (unitflags & FPositiveInteger) && value->isInt && value->fValue > 0) |
| 287 | b = true; |
| 288 | break; |
| 289 | case CSSPrimitiveValue::CSS_PERCENTAGE: |
| 290 | b = (unitflags & FPercent); |
| 291 | break; |
| 292 | case CSSParserValue::Q_EMS: |
| 293 | case CSSPrimitiveValue::CSS_EMS: |
| 294 | case CSSPrimitiveValue::CSS_REMS: |
| 295 | case CSSPrimitiveValue::CSS_CHS: |
| 296 | case CSSPrimitiveValue::CSS_EXS: |
| 297 | case CSSPrimitiveValue::CSS_PX: |
| 298 | case CSSPrimitiveValue::CSS_CM: |
| 299 | case CSSPrimitiveValue::CSS_MM: |
| 300 | case CSSPrimitiveValue::CSS_IN: |
| 301 | case CSSPrimitiveValue::CSS_PT: |
| 302 | case CSSPrimitiveValue::CSS_PC: |
| 303 | case CSSPrimitiveValue::CSS_VW: |
| 304 | case CSSPrimitiveValue::CSS_VH: |
| 305 | case CSSPrimitiveValue::CSS_VMIN: |
| 306 | case CSSPrimitiveValue::CSS_VMAX: |
| 307 | b = (unitflags & FLength); |
| 308 | break; |
| 309 | case CSSPrimitiveValue::CSS_MS: |
| 310 | case CSSPrimitiveValue::CSS_S: |
| 311 | b = (unitflags & FTime); |
| 312 | break; |
| 313 | case CSSPrimitiveValue::CSS_DEG: |
| 314 | case CSSPrimitiveValue::CSS_RAD: |
| 315 | case CSSPrimitiveValue::CSS_GRAD: |
| 316 | case CSSPrimitiveValue::CSS_TURN: |
| 317 | b = (unitflags & FAngle); |
| 318 | break; |
| 319 | case CSSPrimitiveValue::CSS_DPPX: |
| 320 | case CSSPrimitiveValue::CSS_DPI: |
| 321 | case CSSPrimitiveValue::CSS_DPCM: |
| 322 | b = (unitflags & FResolution); |
| 323 | break; |
| 324 | case CSSPrimitiveValue::CSS_HZ: |
| 325 | case CSSPrimitiveValue::CSS_KHZ: |
| 326 | case CSSPrimitiveValue::CSS_DIMENSION: |
| 327 | default: |
| 328 | break; |
| 329 | } |
| 330 | if (b && unitflags & FNonNeg && value->fValue < 0) |
| 331 | b = false; |
| 332 | return b; |
| 333 | } |
| 334 | |
| 335 | PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::createPrimitiveNumericValue(CSSParserValue* value) |
| 336 | { |
| 337 | if (m_parsedCalculation) { |
| 338 | ASSERT(isCalculation(value)); |
| 339 | return CSSPrimitiveValue::create(m_parsedCalculation.release()); |
| 340 | } |
| 341 | |
| 342 | ASSERT((value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ) |
| 343 | || (value->unit >= CSSPrimitiveValue::CSS_TURN && value->unit <= CSSPrimitiveValue::CSS_CHS) |
| 344 | || (value->unit >= CSSPrimitiveValue::CSS_VW && value->unit <= CSSPrimitiveValue::CSS_VMAX) |
| 345 | || (value->unit >= CSSPrimitiveValue::CSS_DPPX && value->unit <= CSSPrimitiveValue::CSS_DPCM)); |
| 346 | return cssValuePool().createValue(value->fValue, static_cast<CSSPrimitiveValue::UnitTypes>(value->unit)); |
| 347 | } |
| 348 | |
| 349 | inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::createPrimitiveStringValue(CSSParserValue* value) |
| 350 | { |
| 351 | ASSERT(value->unit == CSSPrimitiveValue::CSS_STRING || value->unit == CSSPrimitiveValue::CSS_IDENT); |
| 352 | return cssValuePool().createValue(value->string, CSSPrimitiveValue::CSS_STRING); |
| 353 | } |
| 354 | |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 355 | inline PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::createCSSImageValueWithReferrer(const String& rawValue, const KURL& url) |
| 356 | { |
| 357 | RefPtrWillBeRawPtr<CSSValue> imageValue = CSSImageValue::create(rawValue, url); |
| 358 | toCSSImageValue(imageValue.get())->setReferrer(m_context.baseURL().strippedForUseAsReferrer()); |
| 359 | return imageValue; |
| 360 | } |
| 361 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 362 | static inline bool isComma(CSSParserValue* value) |
| 363 | { |
| 364 | return value && value->unit == CSSParserValue::Operator && value->iValue == ','; |
| 365 | } |
| 366 | |
| 367 | static inline bool isForwardSlashOperator(CSSParserValue* value) |
| 368 | { |
| 369 | ASSERT(value); |
| 370 | return value->unit == CSSParserValue::Operator && value->iValue == '/'; |
| 371 | } |
| 372 | |
| 373 | static bool isGeneratedImageValue(CSSParserValue* val) |
| 374 | { |
| 375 | if (val->unit != CSSParserValue::Function) |
| 376 | return false; |
| 377 | |
| 378 | return equalIgnoringCase(val->function->name, "-webkit-gradient(") |
| 379 | || equalIgnoringCase(val->function->name, "-webkit-linear-gradient(") |
| 380 | || equalIgnoringCase(val->function->name, "linear-gradient(") |
| 381 | || equalIgnoringCase(val->function->name, "-webkit-repeating-linear-gradient(") |
| 382 | || equalIgnoringCase(val->function->name, "repeating-linear-gradient(") |
| 383 | || equalIgnoringCase(val->function->name, "-webkit-radial-gradient(") |
| 384 | || equalIgnoringCase(val->function->name, "radial-gradient(") |
| 385 | || equalIgnoringCase(val->function->name, "-webkit-repeating-radial-gradient(") |
| 386 | || equalIgnoringCase(val->function->name, "repeating-radial-gradient(") |
| 387 | || equalIgnoringCase(val->function->name, "-webkit-canvas(") |
| 388 | || equalIgnoringCase(val->function->name, "-webkit-cross-fade("); |
| 389 | } |
| 390 | |
| 391 | bool CSSPropertyParser::validWidthOrHeight(CSSParserValue* value) |
| 392 | { |
| 393 | int id = value->id; |
| 394 | if (id == CSSValueIntrinsic || id == CSSValueMinIntrinsic || id == CSSValueWebkitMinContent || id == CSSValueWebkitMaxContent || id == CSSValueWebkitFillAvailable || id == CSSValueWebkitFitContent) |
| 395 | return true; |
| 396 | return !id && validUnit(value, FLength | FPercent | FNonNeg); |
| 397 | } |
| 398 | |
| 399 | inline PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseValidPrimitive(CSSValueID identifier, CSSParserValue* value) |
| 400 | { |
| 401 | if (identifier) |
| 402 | return cssValuePool().createIdentifierValue(identifier); |
| 403 | if (value->unit == CSSPrimitiveValue::CSS_STRING) |
| 404 | return createPrimitiveStringValue(value); |
| 405 | if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ) |
| 406 | return createPrimitiveNumericValue(value); |
| 407 | if (value->unit >= CSSPrimitiveValue::CSS_TURN && value->unit <= CSSPrimitiveValue::CSS_CHS) |
| 408 | return createPrimitiveNumericValue(value); |
| 409 | if (value->unit >= CSSPrimitiveValue::CSS_VW && value->unit <= CSSPrimitiveValue::CSS_VMAX) |
| 410 | return createPrimitiveNumericValue(value); |
| 411 | if (value->unit >= CSSPrimitiveValue::CSS_DPPX && value->unit <= CSSPrimitiveValue::CSS_DPCM) |
| 412 | return createPrimitiveNumericValue(value); |
| 413 | if (value->unit >= CSSParserValue::Q_EMS) |
| 414 | return CSSPrimitiveValue::createAllowingMarginQuirk(value->fValue, CSSPrimitiveValue::CSS_EMS); |
| 415 | if (isCalculation(value)) |
| 416 | return CSSPrimitiveValue::create(m_parsedCalculation.release()); |
| 417 | |
| 418 | return nullptr; |
| 419 | } |
| 420 | |
| 421 | void CSSPropertyParser::addExpandedPropertyForValue(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> prpValue, bool important) |
| 422 | { |
| 423 | const StylePropertyShorthand& shorthand = shorthandForProperty(propId); |
| 424 | unsigned shorthandLength = shorthand.length(); |
| 425 | if (!shorthandLength) { |
| 426 | addProperty(propId, prpValue, important); |
| 427 | return; |
| 428 | } |
| 429 | |
| 430 | RefPtrWillBeRawPtr<CSSValue> value = prpValue; |
| 431 | ShorthandScope scope(this, propId); |
| 432 | const CSSPropertyID* longhands = shorthand.properties(); |
| 433 | for (unsigned i = 0; i < shorthandLength; ++i) |
| 434 | addProperty(longhands[i], value, important); |
| 435 | } |
| 436 | |
| 437 | bool CSSPropertyParser::parseValue(CSSPropertyID propId, bool important) |
| 438 | { |
| 439 | if (!isInternalPropertyAndValueParsingEnabledForMode(m_context.mode()) && isInternalProperty(propId)) |
| 440 | return false; |
| 441 | |
| 442 | // We don't count the UA style sheet in our statistics. |
| 443 | if (m_context.useCounter()) |
| 444 | m_context.useCounter()->count(m_context, propId); |
| 445 | |
| 446 | if (!m_valueList) |
| 447 | return false; |
| 448 | |
| 449 | CSSParserValue* value = m_valueList->current(); |
| 450 | |
| 451 | if (!value) |
| 452 | return false; |
| 453 | |
| 454 | if (inViewport()) { |
| 455 | // Allow @viewport rules from UA stylesheets even if the feature is disabled. |
| 456 | if (!RuntimeEnabledFeatures::cssViewportEnabled() && !isUASheetBehavior(m_context.mode())) |
| 457 | return false; |
| 458 | |
| 459 | return parseViewportProperty(propId, important); |
| 460 | } |
| 461 | |
| 462 | // Note: m_parsedCalculation is used to pass the calc value to validUnit and then cleared at the end of this function. |
| 463 | // FIXME: This is to avoid having to pass parsedCalc to all validUnit callers. |
| 464 | ASSERT(!m_parsedCalculation); |
| 465 | |
| 466 | CSSValueID id = value->id; |
| 467 | |
| 468 | int num = inShorthand() ? 1 : m_valueList->size(); |
| 469 | |
| 470 | if (id == CSSValueInherit) { |
| 471 | if (num != 1) |
| 472 | return false; |
| 473 | addExpandedPropertyForValue(propId, cssValuePool().createInheritedValue(), important); |
| 474 | return true; |
| 475 | } |
| 476 | else if (id == CSSValueInitial) { |
| 477 | if (num != 1) |
| 478 | return false; |
| 479 | addExpandedPropertyForValue(propId, cssValuePool().createExplicitInitialValue(), important); |
| 480 | return true; |
| 481 | } |
| 482 | |
| 483 | if (isKeywordPropertyID(propId)) { |
| 484 | if (!isValidKeywordPropertyAndValue(propId, id, m_context)) |
| 485 | return false; |
| 486 | if (m_valueList->next() && !inShorthand()) |
| 487 | return false; |
| 488 | addProperty(propId, cssValuePool().createIdentifierValue(id), important); |
| 489 | return true; |
| 490 | } |
| 491 | |
| 492 | bool validPrimitive = false; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 493 | RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 494 | |
| 495 | switch (propId) { |
| 496 | case CSSPropertySize: // <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ] |
| 497 | return parseSize(propId, important); |
| 498 | |
| 499 | case CSSPropertyQuotes: // [<string> <string>]+ | none | inherit |
| 500 | if (id) |
| 501 | validPrimitive = true; |
| 502 | else |
| 503 | return parseQuotes(propId, important); |
| 504 | break; |
| 505 | case CSSPropertyUnicodeBidi: // normal | embed | bidi-override | isolate | isolate-override | plaintext | inherit |
| 506 | if (id == CSSValueNormal |
| 507 | || id == CSSValueEmbed |
| 508 | || id == CSSValueBidiOverride |
| 509 | || id == CSSValueWebkitIsolate |
| 510 | || id == CSSValueWebkitIsolateOverride |
| 511 | || id == CSSValueWebkitPlaintext) |
| 512 | validPrimitive = true; |
| 513 | break; |
| 514 | |
| 515 | case CSSPropertyContent: // [ <string> | <uri> | <counter> | attr(X) | open-quote | |
| 516 | // close-quote | no-open-quote | no-close-quote ]+ | inherit |
| 517 | return parseContent(propId, important); |
| 518 | |
| 519 | case CSSPropertyClip: // <shape> | auto | inherit |
| 520 | if (id == CSSValueAuto) |
| 521 | validPrimitive = true; |
| 522 | else if (value->unit == CSSParserValue::Function) |
| 523 | return parseClipShape(propId, important); |
| 524 | break; |
| 525 | |
| 526 | /* Start of supported CSS properties with validation. This is needed for parseShorthand to work |
| 527 | * correctly and allows optimization in WebCore::applyRule(..) |
| 528 | */ |
| 529 | case CSSPropertyOverflow: { |
| 530 | ShorthandScope scope(this, propId); |
| 531 | if (num != 1 || !parseValue(CSSPropertyOverflowY, important)) |
| 532 | return false; |
| 533 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 534 | RefPtrWillBeRawPtr<CSSValue> overflowXValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 535 | |
| 536 | // FIXME: -webkit-paged-x or -webkit-paged-y only apply to overflow-y. If this value has been |
| 537 | // set using the shorthand, then for now overflow-x will default to auto, but once we implement |
| 538 | // pagination controls, it should default to hidden. If the overflow-y value is anything but |
| 539 | // paged-x or paged-y, then overflow-x and overflow-y should have the same value. |
| 540 | if (id == CSSValueWebkitPagedX || id == CSSValueWebkitPagedY) |
| 541 | overflowXValue = cssValuePool().createIdentifierValue(CSSValueAuto); |
| 542 | else |
| 543 | overflowXValue = m_parsedProperties.last().value(); |
| 544 | addProperty(CSSPropertyOverflowX, overflowXValue.release(), important); |
| 545 | return true; |
| 546 | } |
| 547 | |
| 548 | case CSSPropertyTextAlign: |
| 549 | // left | right | center | justify | -webkit-left | -webkit-right | -webkit-center | -webkit-match-parent |
| 550 | // | start | end | <string> | inherit | -webkit-auto (converted to start) |
| 551 | if ((id >= CSSValueWebkitAuto && id <= CSSValueWebkitMatchParent) || id == CSSValueStart || id == CSSValueEnd |
| 552 | || value->unit == CSSPrimitiveValue::CSS_STRING) |
| 553 | validPrimitive = true; |
| 554 | break; |
| 555 | |
| 556 | case CSSPropertyFontWeight: { // normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | inherit |
| 557 | if (m_valueList->size() != 1) |
| 558 | return false; |
| 559 | return parseFontWeight(important); |
| 560 | } |
| 561 | case CSSPropertyBorderSpacing: { |
| 562 | if (num == 1) { |
| 563 | ShorthandScope scope(this, CSSPropertyBorderSpacing); |
| 564 | if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important)) |
| 565 | return false; |
| 566 | CSSValue* value = m_parsedProperties.last().value(); |
| 567 | addProperty(CSSPropertyWebkitBorderVerticalSpacing, value, important); |
| 568 | return true; |
| 569 | } |
| 570 | else if (num == 2) { |
| 571 | ShorthandScope scope(this, CSSPropertyBorderSpacing); |
| 572 | if (!parseValue(CSSPropertyWebkitBorderHorizontalSpacing, important) || !parseValue(CSSPropertyWebkitBorderVerticalSpacing, important)) |
| 573 | return false; |
| 574 | return true; |
| 575 | } |
| 576 | return false; |
| 577 | } |
| 578 | case CSSPropertyWebkitBorderHorizontalSpacing: |
| 579 | case CSSPropertyWebkitBorderVerticalSpacing: |
| 580 | validPrimitive = validUnit(value, FLength | FNonNeg); |
| 581 | break; |
| 582 | case CSSPropertyOutlineColor: // <color> | invert | inherit |
| 583 | // Outline color has "invert" as additional keyword. |
| 584 | // Also, we want to allow the special focus color even in HTML Standard parsing mode. |
| 585 | if (id == CSSValueInvert || id == CSSValueWebkitFocusRingColor) { |
| 586 | validPrimitive = true; |
| 587 | break; |
| 588 | } |
| 589 | /* nobreak */ |
| 590 | case CSSPropertyBackgroundColor: // <color> | inherit |
| 591 | case CSSPropertyBorderTopColor: // <color> | inherit |
| 592 | case CSSPropertyBorderRightColor: |
| 593 | case CSSPropertyBorderBottomColor: |
| 594 | case CSSPropertyBorderLeftColor: |
| 595 | case CSSPropertyWebkitBorderStartColor: |
| 596 | case CSSPropertyWebkitBorderEndColor: |
| 597 | case CSSPropertyWebkitBorderBeforeColor: |
| 598 | case CSSPropertyWebkitBorderAfterColor: |
| 599 | case CSSPropertyColor: // <color> | inherit |
| 600 | case CSSPropertyTextDecorationColor: // CSS3 text decoration colors |
| 601 | case CSSPropertyTextLineThroughColor: |
| 602 | case CSSPropertyTextUnderlineColor: |
| 603 | case CSSPropertyTextOverlineColor: |
| 604 | case CSSPropertyWebkitColumnRuleColor: |
| 605 | case CSSPropertyWebkitTextEmphasisColor: |
| 606 | case CSSPropertyWebkitTextFillColor: |
| 607 | case CSSPropertyWebkitTextStrokeColor: |
| 608 | if (propId == CSSPropertyTextDecorationColor |
| 609 | && !RuntimeEnabledFeatures::css3TextDecorationsEnabled()) |
| 610 | return false; |
| 611 | |
| 612 | if ((id >= CSSValueAqua && id <= CSSValueWebkitText) || id == CSSValueMenu) { |
| 613 | validPrimitive = isValueAllowedInMode(id, m_context.mode()); |
| 614 | } else { |
| 615 | parsedValue = parseColor(); |
| 616 | if (parsedValue) |
| 617 | m_valueList->next(); |
| 618 | } |
| 619 | break; |
| 620 | |
| 621 | case CSSPropertyCursor: { |
| 622 | // Grammar defined by CSS3 UI and modified by CSS4 images: |
| 623 | // [ [<image> [<x> <y>]?,]* |
| 624 | // [ auto | crosshair | default | pointer | progress | move | e-resize | ne-resize | |
| 625 | // nw-resize | n-resize | se-resize | sw-resize | s-resize | w-resize | ew-resize | |
| 626 | // ns-resize | nesw-resize | nwse-resize | col-resize | row-resize | text | wait | help | |
| 627 | // vertical-text | cell | context-menu | alias | copy | no-drop | not-allowed | -webkit-zoom-in |
| 628 | // -webkit-zoom-out | all-scroll | -webkit-grab | -webkit-grabbing ] ] | inherit |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 629 | RefPtrWillBeRawPtr<CSSValueList> list = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 630 | while (value) { |
| 631 | RefPtrWillBeRawPtr<CSSValue> image = nullptr; |
| 632 | if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| 633 | String uri = value->string; |
| 634 | if (!uri.isNull()) |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 635 | image = createCSSImageValueWithReferrer(uri, completeURL(uri)); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 636 | } else if (value->unit == CSSParserValue::Function && equalIgnoringCase(value->function->name, "-webkit-image-set(")) { |
| 637 | image = parseImageSet(m_valueList.get()); |
| 638 | if (!image) |
| 639 | break; |
| 640 | } else |
| 641 | break; |
| 642 | |
| 643 | Vector<int> coords; |
| 644 | value = m_valueList->next(); |
| 645 | while (value && value->unit == CSSPrimitiveValue::CSS_NUMBER) { |
| 646 | coords.append(int(value->fValue)); |
| 647 | value = m_valueList->next(); |
| 648 | } |
| 649 | bool hasHotSpot = false; |
| 650 | IntPoint hotSpot(-1, -1); |
| 651 | int nrcoords = coords.size(); |
| 652 | if (nrcoords > 0 && nrcoords != 2) |
| 653 | return false; |
| 654 | if (nrcoords == 2) { |
| 655 | hasHotSpot = true; |
| 656 | hotSpot = IntPoint(coords[0], coords[1]); |
| 657 | } |
| 658 | |
| 659 | if (!list) |
| 660 | list = CSSValueList::createCommaSeparated(); |
| 661 | |
| 662 | if (image) |
| 663 | list->append(CSSCursorImageValue::create(image, hasHotSpot, hotSpot)); |
| 664 | |
| 665 | if (!value || !(value->unit == CSSParserValue::Operator && value->iValue == ',')) |
| 666 | return false; |
| 667 | value = m_valueList->next(); // comma |
| 668 | } |
| 669 | if (list) { |
| 670 | if (!value) |
| 671 | return false; |
| 672 | if (inQuirksMode() && value->id == CSSValueHand) // MSIE 5 compatibility :/ |
| 673 | list->append(cssValuePool().createIdentifierValue(CSSValuePointer)); |
| 674 | else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitGrabbing) || value->id == CSSValueCopy || value->id == CSSValueNone) |
| 675 | list->append(cssValuePool().createIdentifierValue(value->id)); |
| 676 | m_valueList->next(); |
| 677 | parsedValue = list.release(); |
| 678 | break; |
| 679 | } else if (value) { |
| 680 | id = value->id; |
| 681 | if (inQuirksMode() && value->id == CSSValueHand) { // MSIE 5 compatibility :/ |
| 682 | id = CSSValuePointer; |
| 683 | validPrimitive = true; |
| 684 | } else if ((value->id >= CSSValueAuto && value->id <= CSSValueWebkitGrabbing) || value->id == CSSValueCopy || value->id == CSSValueNone) |
| 685 | validPrimitive = true; |
| 686 | } else { |
| 687 | ASSERT_NOT_REACHED(); |
| 688 | return false; |
| 689 | } |
| 690 | break; |
| 691 | } |
| 692 | |
| 693 | case CSSPropertyBackgroundBlendMode: |
| 694 | case CSSPropertyBackgroundAttachment: |
| 695 | case CSSPropertyBackgroundClip: |
| 696 | case CSSPropertyWebkitBackgroundClip: |
| 697 | case CSSPropertyWebkitBackgroundComposite: |
| 698 | case CSSPropertyBackgroundImage: |
| 699 | case CSSPropertyBackgroundOrigin: |
| 700 | case CSSPropertyMaskSourceType: |
| 701 | case CSSPropertyWebkitBackgroundOrigin: |
| 702 | case CSSPropertyBackgroundPosition: |
| 703 | case CSSPropertyBackgroundPositionX: |
| 704 | case CSSPropertyBackgroundPositionY: |
| 705 | case CSSPropertyBackgroundSize: |
| 706 | case CSSPropertyWebkitBackgroundSize: |
| 707 | case CSSPropertyBackgroundRepeat: |
| 708 | case CSSPropertyBackgroundRepeatX: |
| 709 | case CSSPropertyBackgroundRepeatY: |
| 710 | case CSSPropertyWebkitMaskClip: |
| 711 | case CSSPropertyWebkitMaskComposite: |
| 712 | case CSSPropertyWebkitMaskImage: |
| 713 | case CSSPropertyWebkitMaskOrigin: |
| 714 | case CSSPropertyWebkitMaskPosition: |
| 715 | case CSSPropertyWebkitMaskPositionX: |
| 716 | case CSSPropertyWebkitMaskPositionY: |
| 717 | case CSSPropertyWebkitMaskSize: |
| 718 | case CSSPropertyWebkitMaskRepeat: |
| 719 | case CSSPropertyWebkitMaskRepeatX: |
| 720 | case CSSPropertyWebkitMaskRepeatY: |
| 721 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 722 | RefPtrWillBeRawPtr<CSSValue> val1 = nullptr; |
| 723 | RefPtrWillBeRawPtr<CSSValue> val2 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 724 | CSSPropertyID propId1, propId2; |
| 725 | bool result = false; |
| 726 | if (parseFillProperty(propId, propId1, propId2, val1, val2)) { |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 727 | if (propId == CSSPropertyBackgroundPosition || |
| 728 | propId == CSSPropertyBackgroundRepeat || |
| 729 | propId == CSSPropertyWebkitMaskPosition || |
| 730 | propId == CSSPropertyWebkitMaskRepeat) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 731 | ShorthandScope scope(this, propId); |
| 732 | addProperty(propId1, val1.release(), important); |
| 733 | if (val2) |
| 734 | addProperty(propId2, val2.release(), important); |
| 735 | } else { |
| 736 | addProperty(propId1, val1.release(), important); |
| 737 | if (val2) |
| 738 | addProperty(propId2, val2.release(), important); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 739 | } |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 740 | result = true; |
| 741 | } |
| 742 | m_implicitShorthand = false; |
| 743 | return result; |
| 744 | } |
| 745 | case CSSPropertyObjectPosition: |
| 746 | return RuntimeEnabledFeatures::objectFitPositionEnabled() && parseObjectPosition(important); |
| 747 | case CSSPropertyListStyleImage: // <uri> | none | inherit |
| 748 | case CSSPropertyBorderImageSource: |
| 749 | case CSSPropertyWebkitMaskBoxImageSource: |
| 750 | if (id == CSSValueNone) { |
| 751 | parsedValue = cssValuePool().createIdentifierValue(CSSValueNone); |
| 752 | m_valueList->next(); |
| 753 | } else if (value->unit == CSSPrimitiveValue::CSS_URI) { |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 754 | parsedValue = createCSSImageValueWithReferrer(value->string, completeURL(value->string)); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 755 | m_valueList->next(); |
| 756 | } else if (isGeneratedImageValue(value)) { |
| 757 | if (parseGeneratedImage(m_valueList.get(), parsedValue)) |
| 758 | m_valueList->next(); |
| 759 | else |
| 760 | return false; |
| 761 | } |
| 762 | else if (value->unit == CSSParserValue::Function && equalIgnoringCase(value->function->name, "-webkit-image-set(")) { |
| 763 | parsedValue = parseImageSet(m_valueList.get()); |
| 764 | if (!parsedValue) |
| 765 | return false; |
| 766 | m_valueList->next(); |
| 767 | } |
| 768 | break; |
| 769 | |
| 770 | case CSSPropertyWebkitTextStrokeWidth: |
| 771 | case CSSPropertyOutlineWidth: // <border-width> | inherit |
| 772 | case CSSPropertyBorderTopWidth: //// <border-width> | inherit |
| 773 | case CSSPropertyBorderRightWidth: // Which is defined as |
| 774 | case CSSPropertyBorderBottomWidth: // thin | medium | thick | <length> |
| 775 | case CSSPropertyBorderLeftWidth: |
| 776 | case CSSPropertyWebkitBorderStartWidth: |
| 777 | case CSSPropertyWebkitBorderEndWidth: |
| 778 | case CSSPropertyWebkitBorderBeforeWidth: |
| 779 | case CSSPropertyWebkitBorderAfterWidth: |
| 780 | case CSSPropertyWebkitColumnRuleWidth: |
| 781 | if (id == CSSValueThin || id == CSSValueMedium || id == CSSValueThick) |
| 782 | validPrimitive = true; |
| 783 | else |
| 784 | validPrimitive = validUnit(value, FLength | FNonNeg); |
| 785 | break; |
| 786 | |
| 787 | case CSSPropertyLetterSpacing: // normal | <length> | inherit |
| 788 | case CSSPropertyWordSpacing: // normal | <length> | inherit |
| 789 | if (id == CSSValueNormal) |
| 790 | validPrimitive = true; |
| 791 | else |
| 792 | validPrimitive = validUnit(value, FLength); |
| 793 | break; |
| 794 | |
| 795 | case CSSPropertyTextIndent: |
| 796 | parsedValue = parseTextIndent(); |
| 797 | break; |
| 798 | |
| 799 | case CSSPropertyPaddingTop: //// <padding-width> | inherit |
| 800 | case CSSPropertyPaddingRight: // Which is defined as |
| 801 | case CSSPropertyPaddingBottom: // <length> | <percentage> |
| 802 | case CSSPropertyPaddingLeft: //// |
| 803 | case CSSPropertyWebkitPaddingStart: |
| 804 | case CSSPropertyWebkitPaddingEnd: |
| 805 | case CSSPropertyWebkitPaddingBefore: |
| 806 | case CSSPropertyWebkitPaddingAfter: |
| 807 | validPrimitive = (!id && validUnit(value, FLength | FPercent | FNonNeg)); |
| 808 | break; |
| 809 | |
| 810 | case CSSPropertyMaxWidth: |
| 811 | case CSSPropertyWebkitMaxLogicalWidth: |
| 812 | case CSSPropertyMaxHeight: |
| 813 | case CSSPropertyWebkitMaxLogicalHeight: |
| 814 | validPrimitive = (id == CSSValueNone || validWidthOrHeight(value)); |
| 815 | break; |
| 816 | |
| 817 | case CSSPropertyMinWidth: |
| 818 | case CSSPropertyWebkitMinLogicalWidth: |
| 819 | case CSSPropertyMinHeight: |
| 820 | case CSSPropertyWebkitMinLogicalHeight: |
| 821 | validPrimitive = validWidthOrHeight(value); |
| 822 | break; |
| 823 | |
| 824 | case CSSPropertyWidth: |
| 825 | case CSSPropertyWebkitLogicalWidth: |
| 826 | case CSSPropertyHeight: |
| 827 | case CSSPropertyWebkitLogicalHeight: |
| 828 | validPrimitive = (id == CSSValueAuto || validWidthOrHeight(value)); |
| 829 | break; |
| 830 | |
| 831 | case CSSPropertyFontSize: |
| 832 | return parseFontSize(important); |
| 833 | |
| 834 | case CSSPropertyFontVariant: // normal | small-caps | inherit |
| 835 | return parseFontVariant(important); |
| 836 | |
| 837 | case CSSPropertyVerticalAlign: |
| 838 | // baseline | sub | super | top | text-top | middle | bottom | text-bottom | |
| 839 | // <percentage> | <length> | inherit |
| 840 | |
| 841 | if (id >= CSSValueBaseline && id <= CSSValueWebkitBaselineMiddle) |
| 842 | validPrimitive = true; |
| 843 | else |
| 844 | validPrimitive = (!id && validUnit(value, FLength | FPercent)); |
| 845 | break; |
| 846 | |
| 847 | case CSSPropertyBottom: // <length> | <percentage> | auto | inherit |
| 848 | case CSSPropertyLeft: // <length> | <percentage> | auto | inherit |
| 849 | case CSSPropertyRight: // <length> | <percentage> | auto | inherit |
| 850 | case CSSPropertyTop: // <length> | <percentage> | auto | inherit |
| 851 | case CSSPropertyMarginTop: //// <margin-width> | inherit |
| 852 | case CSSPropertyMarginRight: // Which is defined as |
| 853 | case CSSPropertyMarginBottom: // <length> | <percentage> | auto | inherit |
| 854 | case CSSPropertyMarginLeft: //// |
| 855 | case CSSPropertyWebkitMarginStart: |
| 856 | case CSSPropertyWebkitMarginEnd: |
| 857 | case CSSPropertyWebkitMarginBefore: |
| 858 | case CSSPropertyWebkitMarginAfter: |
| 859 | if (id == CSSValueAuto) |
| 860 | validPrimitive = true; |
| 861 | else |
| 862 | validPrimitive = (!id && validUnit(value, FLength | FPercent)); |
| 863 | break; |
| 864 | |
| 865 | case CSSPropertyOrphans: // <integer> | inherit | auto (We've added support for auto for backwards compatibility) |
| 866 | case CSSPropertyWidows: // <integer> | inherit | auto (Ditto) |
| 867 | if (id == CSSValueAuto) |
| 868 | validPrimitive = true; |
| 869 | else |
| 870 | validPrimitive = (!id && validUnit(value, FPositiveInteger, HTMLQuirksMode)); |
| 871 | break; |
| 872 | |
| 873 | case CSSPropertyZIndex: // auto | <integer> | inherit |
| 874 | if (id == CSSValueAuto) |
| 875 | validPrimitive = true; |
| 876 | else |
| 877 | validPrimitive = (!id && validUnit(value, FInteger, HTMLQuirksMode)); |
| 878 | break; |
| 879 | |
| 880 | case CSSPropertyLineHeight: |
| 881 | return parseLineHeight(important); |
| 882 | case CSSPropertyCounterIncrement: // [ <identifier> <integer>? ]+ | none | inherit |
| 883 | if (id != CSSValueNone) |
| 884 | return parseCounter(propId, 1, important); |
| 885 | validPrimitive = true; |
| 886 | break; |
| 887 | case CSSPropertyCounterReset: // [ <identifier> <integer>? ]+ | none | inherit |
| 888 | if (id != CSSValueNone) |
| 889 | return parseCounter(propId, 0, important); |
| 890 | validPrimitive = true; |
| 891 | break; |
| 892 | case CSSPropertyFontFamily: |
| 893 | // [[ <family-name> | <generic-family> ],]* [<family-name> | <generic-family>] | inherit |
| 894 | { |
| 895 | parsedValue = parseFontFamily(); |
| 896 | break; |
| 897 | } |
| 898 | |
| 899 | case CSSPropertyTextDecoration: |
| 900 | // Fall through 'text-decoration-line' parsing if CSS 3 Text Decoration |
| 901 | // is disabled to match CSS 2.1 rules for parsing 'text-decoration'. |
| 902 | if (RuntimeEnabledFeatures::css3TextDecorationsEnabled()) { |
| 903 | // [ <text-decoration-line> || <text-decoration-style> || <text-decoration-color> ] | inherit |
| 904 | return parseShorthand(CSSPropertyTextDecoration, textDecorationShorthand(), important); |
| 905 | } |
| 906 | case CSSPropertyWebkitTextDecorationsInEffect: |
| 907 | case CSSPropertyTextDecorationLine: |
| 908 | // none | [ underline || overline || line-through || blink ] | inherit |
| 909 | return parseTextDecoration(propId, important); |
| 910 | |
| 911 | case CSSPropertyTextDecorationStyle: |
| 912 | // solid | double | dotted | dashed | wavy |
| 913 | if (RuntimeEnabledFeatures::css3TextDecorationsEnabled() |
| 914 | && (id == CSSValueSolid || id == CSSValueDouble || id == CSSValueDotted || id == CSSValueDashed || id == CSSValueWavy)) |
| 915 | validPrimitive = true; |
| 916 | break; |
| 917 | |
| 918 | case CSSPropertyTextUnderlinePosition: |
| 919 | // auto | under | inherit |
| 920 | if (RuntimeEnabledFeatures::css3TextDecorationsEnabled()) |
| 921 | return parseTextUnderlinePosition(important); |
| 922 | return false; |
| 923 | |
| 924 | case CSSPropertyZoom: // normal | reset | document | <number> | <percentage> | inherit |
| 925 | if (id == CSSValueNormal || id == CSSValueReset || id == CSSValueDocument) |
| 926 | validPrimitive = true; |
| 927 | else |
| 928 | validPrimitive = (!id && validUnit(value, FNumber | FPercent | FNonNeg, HTMLStandardMode)); |
| 929 | break; |
| 930 | |
| 931 | case CSSPropertySrc: // Only used within @font-face and @-webkit-filter, so cannot use inherit | initial or be !important. This is a list of urls or local references. |
| 932 | return parseFontFaceSrc(); |
| 933 | |
| 934 | case CSSPropertyUnicodeRange: |
| 935 | return parseFontFaceUnicodeRange(); |
| 936 | |
| 937 | /* CSS3 properties */ |
| 938 | |
| 939 | case CSSPropertyBorderImage: |
| 940 | case CSSPropertyWebkitMaskBoxImage: |
| 941 | return parseBorderImageShorthand(propId, important); |
| 942 | case CSSPropertyWebkitBorderImage: { |
| 943 | if (RefPtrWillBeRawPtr<CSSValue> result = parseBorderImage(propId)) { |
| 944 | addProperty(propId, result, important); |
| 945 | return true; |
| 946 | } |
| 947 | return false; |
| 948 | } |
| 949 | |
| 950 | case CSSPropertyBorderImageOutset: |
| 951 | case CSSPropertyWebkitMaskBoxImageOutset: { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 952 | RefPtrWillBeRawPtr<CSSPrimitiveValue> result = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 953 | if (parseBorderImageOutset(result)) { |
| 954 | addProperty(propId, result, important); |
| 955 | return true; |
| 956 | } |
| 957 | break; |
| 958 | } |
| 959 | case CSSPropertyBorderImageRepeat: |
| 960 | case CSSPropertyWebkitMaskBoxImageRepeat: { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 961 | RefPtrWillBeRawPtr<CSSValue> result = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 962 | if (parseBorderImageRepeat(result)) { |
| 963 | addProperty(propId, result, important); |
| 964 | return true; |
| 965 | } |
| 966 | break; |
| 967 | } |
| 968 | case CSSPropertyBorderImageSlice: |
| 969 | case CSSPropertyWebkitMaskBoxImageSlice: { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 970 | RefPtrWillBeRawPtr<CSSBorderImageSliceValue> result = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 971 | if (parseBorderImageSlice(propId, result)) { |
| 972 | addProperty(propId, result, important); |
| 973 | return true; |
| 974 | } |
| 975 | break; |
| 976 | } |
| 977 | case CSSPropertyBorderImageWidth: |
| 978 | case CSSPropertyWebkitMaskBoxImageWidth: { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 979 | RefPtrWillBeRawPtr<CSSPrimitiveValue> result = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 980 | if (parseBorderImageWidth(result)) { |
| 981 | addProperty(propId, result, important); |
| 982 | return true; |
| 983 | } |
| 984 | break; |
| 985 | } |
| 986 | case CSSPropertyBorderTopRightRadius: |
| 987 | case CSSPropertyBorderTopLeftRadius: |
| 988 | case CSSPropertyBorderBottomLeftRadius: |
| 989 | case CSSPropertyBorderBottomRightRadius: { |
| 990 | if (num != 1 && num != 2) |
| 991 | return false; |
| 992 | validPrimitive = validUnit(value, FLength | FPercent | FNonNeg); |
| 993 | if (!validPrimitive) |
| 994 | return false; |
| 995 | RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1 = createPrimitiveNumericValue(value); |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 996 | RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 997 | if (num == 2) { |
| 998 | value = m_valueList->next(); |
| 999 | validPrimitive = validUnit(value, FLength | FPercent | FNonNeg); |
| 1000 | if (!validPrimitive) |
| 1001 | return false; |
| 1002 | parsedValue2 = createPrimitiveNumericValue(value); |
| 1003 | } else |
| 1004 | parsedValue2 = parsedValue1; |
| 1005 | |
| 1006 | addProperty(propId, createPrimitiveValuePair(parsedValue1.release(), parsedValue2.release()), important); |
| 1007 | return true; |
| 1008 | } |
| 1009 | case CSSPropertyTabSize: |
| 1010 | validPrimitive = validUnit(value, FInteger | FNonNeg); |
| 1011 | break; |
| 1012 | case CSSPropertyWebkitAspectRatio: |
| 1013 | return parseAspectRatio(important); |
| 1014 | case CSSPropertyBorderRadius: |
| 1015 | case CSSPropertyWebkitBorderRadius: |
| 1016 | return parseBorderRadius(propId, important); |
| 1017 | case CSSPropertyOutlineOffset: |
| 1018 | validPrimitive = validUnit(value, FLength); |
| 1019 | break; |
| 1020 | case CSSPropertyTextShadow: // CSS2 property, dropped in CSS2.1, back in CSS3, so treat as CSS3 |
| 1021 | case CSSPropertyBoxShadow: |
| 1022 | case CSSPropertyWebkitBoxShadow: |
| 1023 | if (id == CSSValueNone) |
| 1024 | validPrimitive = true; |
| 1025 | else { |
| 1026 | RefPtrWillBeRawPtr<CSSValueList> shadowValueList = parseShadow(m_valueList.get(), propId); |
| 1027 | if (shadowValueList) { |
| 1028 | addProperty(propId, shadowValueList.release(), important); |
| 1029 | m_valueList->next(); |
| 1030 | return true; |
| 1031 | } |
| 1032 | return false; |
| 1033 | } |
| 1034 | break; |
| 1035 | case CSSPropertyWebkitBoxReflect: |
| 1036 | if (id == CSSValueNone) |
| 1037 | validPrimitive = true; |
| 1038 | else |
| 1039 | return parseReflect(propId, important); |
| 1040 | break; |
| 1041 | case CSSPropertyOpacity: |
| 1042 | validPrimitive = validUnit(value, FNumber); |
| 1043 | break; |
| 1044 | case CSSPropertyWebkitBoxFlex: |
| 1045 | validPrimitive = validUnit(value, FNumber); |
| 1046 | break; |
| 1047 | case CSSPropertyWebkitBoxFlexGroup: |
| 1048 | validPrimitive = validUnit(value, FInteger | FNonNeg, HTMLStandardMode); |
| 1049 | break; |
| 1050 | case CSSPropertyWebkitBoxOrdinalGroup: |
| 1051 | validPrimitive = validUnit(value, FInteger | FNonNeg, HTMLStandardMode) && value->fValue; |
| 1052 | break; |
| 1053 | case CSSPropertyWebkitFilter: |
| 1054 | if (id == CSSValueNone) |
| 1055 | validPrimitive = true; |
| 1056 | else { |
| 1057 | RefPtrWillBeRawPtr<CSSValue> val = parseFilter(); |
| 1058 | if (val) { |
| 1059 | addProperty(propId, val, important); |
| 1060 | return true; |
| 1061 | } |
| 1062 | return false; |
| 1063 | } |
| 1064 | break; |
| 1065 | case CSSPropertyFlex: { |
| 1066 | ShorthandScope scope(this, propId); |
| 1067 | if (id == CSSValueNone) { |
| 1068 | addProperty(CSSPropertyFlexGrow, cssValuePool().createValue(0, CSSPrimitiveValue::CSS_NUMBER), important); |
| 1069 | addProperty(CSSPropertyFlexShrink, cssValuePool().createValue(0, CSSPrimitiveValue::CSS_NUMBER), important); |
| 1070 | addProperty(CSSPropertyFlexBasis, cssValuePool().createIdentifierValue(CSSValueAuto), important); |
| 1071 | return true; |
| 1072 | } |
| 1073 | return parseFlex(m_valueList.get(), important); |
| 1074 | } |
| 1075 | case CSSPropertyFlexBasis: |
| 1076 | // FIXME: Support intrinsic dimensions too. |
| 1077 | if (id == CSSValueAuto) |
| 1078 | validPrimitive = true; |
| 1079 | else |
| 1080 | validPrimitive = (!id && validUnit(value, FLength | FPercent | FNonNeg)); |
| 1081 | break; |
| 1082 | case CSSPropertyFlexGrow: |
| 1083 | case CSSPropertyFlexShrink: |
| 1084 | validPrimitive = validUnit(value, FNumber | FNonNeg); |
| 1085 | break; |
| 1086 | case CSSPropertyOrder: |
| 1087 | validPrimitive = validUnit(value, FInteger, HTMLStandardMode); |
| 1088 | break; |
| 1089 | case CSSPropertyInternalMarqueeIncrement: |
| 1090 | if (id == CSSValueSmall || id == CSSValueLarge || id == CSSValueMedium) |
| 1091 | validPrimitive = true; |
| 1092 | else |
| 1093 | validPrimitive = validUnit(value, FLength | FPercent); |
| 1094 | break; |
| 1095 | case CSSPropertyInternalMarqueeRepetition: |
| 1096 | if (id == CSSValueInfinite) |
| 1097 | validPrimitive = true; |
| 1098 | else |
| 1099 | validPrimitive = validUnit(value, FInteger | FNonNeg); |
| 1100 | break; |
| 1101 | case CSSPropertyInternalMarqueeSpeed: |
| 1102 | if (id == CSSValueNormal || id == CSSValueSlow || id == CSSValueFast) |
| 1103 | validPrimitive = true; |
| 1104 | else |
| 1105 | validPrimitive = validUnit(value, FTime | FInteger | FNonNeg); |
| 1106 | break; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1107 | case CSSPropertyTransform: |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1108 | case CSSPropertyWebkitTransform: |
| 1109 | if (id == CSSValueNone) |
| 1110 | validPrimitive = true; |
| 1111 | else { |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1112 | RefPtrWillBeRawPtr<CSSValue> transformValue = parseTransform(propId); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1113 | if (transformValue) { |
| 1114 | addProperty(propId, transformValue.release(), important); |
| 1115 | return true; |
| 1116 | } |
| 1117 | return false; |
| 1118 | } |
| 1119 | break; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1120 | case CSSPropertyTransformOrigin: { |
| 1121 | RefPtrWillBeRawPtr<CSSValueList> list = parseTransformOrigin(); |
| 1122 | if (!list) |
| 1123 | return false; |
| 1124 | // These values are added to match gecko serialization. |
| 1125 | if (list->length() == 1) |
| 1126 | list->append(cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE)); |
| 1127 | if (list->length() == 2) |
| 1128 | list->append(cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PX)); |
| 1129 | addProperty(propId, list.release(), important); |
| 1130 | return true; |
| 1131 | } |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1132 | case CSSPropertyWebkitTransformOrigin: |
| 1133 | case CSSPropertyWebkitTransformOriginX: |
| 1134 | case CSSPropertyWebkitTransformOriginY: |
| 1135 | case CSSPropertyWebkitTransformOriginZ: { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1136 | RefPtrWillBeRawPtr<CSSValue> val1 = nullptr; |
| 1137 | RefPtrWillBeRawPtr<CSSValue> val2 = nullptr; |
| 1138 | RefPtrWillBeRawPtr<CSSValue> val3 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1139 | CSSPropertyID propId1, propId2, propId3; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1140 | if (parseWebkitTransformOrigin(propId, propId1, propId2, propId3, val1, val2, val3)) { |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1141 | addProperty(propId1, val1.release(), important); |
| 1142 | if (val2) |
| 1143 | addProperty(propId2, val2.release(), important); |
| 1144 | if (val3) |
| 1145 | addProperty(propId3, val3.release(), important); |
| 1146 | return true; |
| 1147 | } |
| 1148 | return false; |
| 1149 | } |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1150 | case CSSPropertyPerspective: |
| 1151 | if (id == CSSValueNone) { |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1152 | validPrimitive = true; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1153 | } else if (validUnit(value, FLength | FNonNeg)) { |
| 1154 | addProperty(propId, createPrimitiveNumericValue(value), important); |
| 1155 | return true; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1156 | } |
| 1157 | break; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1158 | case CSSPropertyWebkitPerspective: |
| 1159 | if (id == CSSValueNone) { |
| 1160 | validPrimitive = true; |
| 1161 | } else if (validUnit(value, FNumber | FLength | FNonNeg)) { |
| 1162 | // Accepting valueless numbers is a quirk of the -webkit prefixed version of the property. |
| 1163 | addProperty(propId, createPrimitiveNumericValue(value), important); |
| 1164 | return true; |
| 1165 | } |
| 1166 | break; |
| 1167 | case CSSPropertyPerspectiveOrigin: { |
| 1168 | RefPtrWillBeRawPtr<CSSValueList> list = parseTransformOrigin(); |
| 1169 | if (!list || list->length() == 3) |
| 1170 | return false; |
| 1171 | // This values are added to match gecko serialization. |
| 1172 | if (list->length() == 1) |
| 1173 | list->append(cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE)); |
| 1174 | addProperty(propId, list.release(), important); |
| 1175 | return true; |
| 1176 | } |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1177 | case CSSPropertyWebkitPerspectiveOrigin: |
| 1178 | case CSSPropertyWebkitPerspectiveOriginX: |
| 1179 | case CSSPropertyWebkitPerspectiveOriginY: { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1180 | RefPtrWillBeRawPtr<CSSValue> val1 = nullptr; |
| 1181 | RefPtrWillBeRawPtr<CSSValue> val2 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1182 | CSSPropertyID propId1, propId2; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1183 | if (parseWebkitPerspectiveOrigin(propId, propId1, propId2, val1, val2)) { |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1184 | addProperty(propId1, val1.release(), important); |
| 1185 | if (val2) |
| 1186 | addProperty(propId2, val2.release(), important); |
| 1187 | return true; |
| 1188 | } |
| 1189 | return false; |
| 1190 | } |
| 1191 | case CSSPropertyAnimationDelay: |
| 1192 | case CSSPropertyAnimationDirection: |
| 1193 | case CSSPropertyAnimationDuration: |
| 1194 | case CSSPropertyAnimationFillMode: |
| 1195 | case CSSPropertyAnimationName: |
| 1196 | case CSSPropertyAnimationPlayState: |
| 1197 | case CSSPropertyAnimationIterationCount: |
| 1198 | case CSSPropertyAnimationTimingFunction: |
| 1199 | if (!RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled()) |
| 1200 | break; |
| 1201 | case CSSPropertyWebkitAnimationDelay: |
| 1202 | case CSSPropertyWebkitAnimationDirection: |
| 1203 | case CSSPropertyWebkitAnimationDuration: |
| 1204 | case CSSPropertyWebkitAnimationFillMode: |
| 1205 | case CSSPropertyWebkitAnimationName: |
| 1206 | case CSSPropertyWebkitAnimationPlayState: |
| 1207 | case CSSPropertyWebkitAnimationIterationCount: |
| 1208 | case CSSPropertyWebkitAnimationTimingFunction: |
| 1209 | case CSSPropertyTransitionDelay: |
| 1210 | case CSSPropertyTransitionDuration: |
| 1211 | case CSSPropertyTransitionTimingFunction: |
| 1212 | case CSSPropertyTransitionProperty: |
| 1213 | case CSSPropertyWebkitTransitionDelay: |
| 1214 | case CSSPropertyWebkitTransitionDuration: |
| 1215 | case CSSPropertyWebkitTransitionTimingFunction: |
| 1216 | case CSSPropertyWebkitTransitionProperty: { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1217 | RefPtrWillBeRawPtr<CSSValue> val = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1218 | AnimationParseContext context; |
| 1219 | if (parseAnimationProperty(propId, val, context)) { |
| 1220 | addPropertyWithPrefixingVariant(propId, val.release(), important); |
| 1221 | return true; |
| 1222 | } |
| 1223 | return false; |
| 1224 | } |
| 1225 | |
| 1226 | case CSSPropertyJustifySelf: |
| 1227 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1228 | return false; |
| 1229 | |
| 1230 | return parseItemPositionOverflowPosition(propId, important); |
| 1231 | case CSSPropertyGridAutoColumns: |
| 1232 | case CSSPropertyGridAutoRows: |
| 1233 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1234 | return false; |
| 1235 | parsedValue = parseGridTrackSize(*m_valueList); |
| 1236 | break; |
| 1237 | |
| 1238 | case CSSPropertyGridTemplateColumns: |
| 1239 | case CSSPropertyGridTemplateRows: |
| 1240 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1241 | return false; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1242 | parsedValue = parseGridTrackList(important); |
| 1243 | break; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1244 | |
| 1245 | case CSSPropertyGridColumnEnd: |
| 1246 | case CSSPropertyGridColumnStart: |
| 1247 | case CSSPropertyGridRowEnd: |
| 1248 | case CSSPropertyGridRowStart: |
| 1249 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1250 | return false; |
| 1251 | parsedValue = parseGridPosition(); |
| 1252 | break; |
| 1253 | |
| 1254 | case CSSPropertyGridColumn: |
| 1255 | case CSSPropertyGridRow: |
| 1256 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1257 | return false; |
| 1258 | return parseGridItemPositionShorthand(propId, important); |
| 1259 | |
| 1260 | case CSSPropertyGridArea: |
| 1261 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1262 | return false; |
| 1263 | return parseGridAreaShorthand(important); |
| 1264 | |
| 1265 | case CSSPropertyGridTemplateAreas: |
| 1266 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1267 | return false; |
| 1268 | parsedValue = parseGridTemplateAreas(); |
| 1269 | break; |
| 1270 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 1271 | case CSSPropertyGridTemplate: |
| 1272 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1273 | return false; |
| 1274 | return parseGridTemplateShorthand(important); |
| 1275 | |
Ben Murdoch | a9984bf | 2014-04-10 11:22:39 +0100 | [diff] [blame] | 1276 | case CSSPropertyGrid: |
| 1277 | if (!RuntimeEnabledFeatures::cssGridLayoutEnabled()) |
| 1278 | return false; |
| 1279 | return parseGridShorthand(important); |
| 1280 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1281 | case CSSPropertyWebkitMarginCollapse: { |
| 1282 | if (num == 1) { |
| 1283 | ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse); |
| 1284 | if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important)) |
| 1285 | return false; |
| 1286 | CSSValue* value = m_parsedProperties.last().value(); |
| 1287 | addProperty(webkitMarginCollapseShorthand().properties()[1], value, important); |
| 1288 | return true; |
| 1289 | } |
| 1290 | else if (num == 2) { |
| 1291 | ShorthandScope scope(this, CSSPropertyWebkitMarginCollapse); |
| 1292 | if (!parseValue(webkitMarginCollapseShorthand().properties()[0], important) || !parseValue(webkitMarginCollapseShorthand().properties()[1], important)) |
| 1293 | return false; |
| 1294 | return true; |
| 1295 | } |
| 1296 | return false; |
| 1297 | } |
| 1298 | case CSSPropertyTextLineThroughWidth: |
| 1299 | case CSSPropertyTextOverlineWidth: |
| 1300 | case CSSPropertyTextUnderlineWidth: |
| 1301 | if (id == CSSValueAuto || id == CSSValueNormal || id == CSSValueThin || |
| 1302 | id == CSSValueMedium || id == CSSValueThick) |
| 1303 | validPrimitive = true; |
| 1304 | else |
| 1305 | validPrimitive = !id && validUnit(value, FNumber | FLength | FPercent); |
| 1306 | break; |
| 1307 | case CSSPropertyWebkitColumnCount: |
| 1308 | parsedValue = parseColumnCount(); |
| 1309 | break; |
| 1310 | case CSSPropertyWebkitColumnGap: // normal | <length> |
| 1311 | if (id == CSSValueNormal) |
| 1312 | validPrimitive = true; |
| 1313 | else |
| 1314 | validPrimitive = validUnit(value, FLength | FNonNeg); |
| 1315 | break; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1316 | case CSSPropertyWebkitColumnSpan: // none | all | 1 (will be dropped in the unprefixed property) |
| 1317 | if (id == CSSValueAll || id == CSSValueNone) |
| 1318 | validPrimitive = true; |
| 1319 | else |
| 1320 | validPrimitive = validUnit(value, FNumber | FNonNeg) && value->fValue == 1; |
| 1321 | break; |
| 1322 | case CSSPropertyWebkitColumnWidth: // auto | <length> |
| 1323 | parsedValue = parseColumnWidth(); |
| 1324 | break; |
| 1325 | case CSSPropertyWillChange: |
| 1326 | if (!RuntimeEnabledFeatures::cssWillChangeEnabled()) |
| 1327 | return false; |
| 1328 | return parseWillChange(important); |
| 1329 | // End of CSS3 properties |
| 1330 | |
| 1331 | // Apple specific properties. These will never be standardized and are purely to |
| 1332 | // support custom WebKit-based Apple applications. |
| 1333 | case CSSPropertyWebkitLineClamp: |
| 1334 | // When specifying number of lines, don't allow 0 as a valid value |
| 1335 | // When specifying either type of unit, require non-negative integers |
| 1336 | validPrimitive = (!id && (value->unit == CSSPrimitiveValue::CSS_PERCENTAGE || value->fValue) && validUnit(value, FInteger | FPercent | FNonNeg, HTMLQuirksMode)); |
| 1337 | break; |
| 1338 | |
| 1339 | case CSSPropertyWebkitFontSizeDelta: // <length> |
| 1340 | validPrimitive = validUnit(value, FLength); |
| 1341 | break; |
| 1342 | |
| 1343 | case CSSPropertyWebkitHighlight: |
| 1344 | if (id == CSSValueNone || value->unit == CSSPrimitiveValue::CSS_STRING) |
| 1345 | validPrimitive = true; |
| 1346 | break; |
| 1347 | |
| 1348 | case CSSPropertyWebkitHyphenateCharacter: |
| 1349 | if (id == CSSValueAuto || value->unit == CSSPrimitiveValue::CSS_STRING) |
| 1350 | validPrimitive = true; |
| 1351 | break; |
| 1352 | |
| 1353 | case CSSPropertyWebkitLocale: |
| 1354 | if (id == CSSValueAuto || value->unit == CSSPrimitiveValue::CSS_STRING) |
| 1355 | validPrimitive = true; |
| 1356 | break; |
| 1357 | |
| 1358 | // End Apple-specific properties |
| 1359 | |
| 1360 | case CSSPropertyWebkitAppRegion: |
| 1361 | if (id >= CSSValueDrag && id <= CSSValueNoDrag) |
| 1362 | validPrimitive = true; |
| 1363 | break; |
| 1364 | |
| 1365 | case CSSPropertyWebkitTapHighlightColor: |
| 1366 | if ((id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu |
| 1367 | || (id >= CSSValueWebkitFocusRingColor && id < CSSValueWebkitText && inQuirksMode())) { |
| 1368 | validPrimitive = true; |
| 1369 | } else { |
| 1370 | parsedValue = parseColor(); |
| 1371 | if (parsedValue) |
| 1372 | m_valueList->next(); |
| 1373 | } |
| 1374 | break; |
| 1375 | |
| 1376 | /* shorthand properties */ |
| 1377 | case CSSPropertyBackground: { |
| 1378 | // Position must come before color in this array because a plain old "0" is a legal color |
| 1379 | // in quirks mode but it's usually the X coordinate of a position. |
| 1380 | const CSSPropertyID properties[] = { CSSPropertyBackgroundImage, CSSPropertyBackgroundRepeat, |
| 1381 | CSSPropertyBackgroundAttachment, CSSPropertyBackgroundPosition, CSSPropertyBackgroundOrigin, |
| 1382 | CSSPropertyBackgroundClip, CSSPropertyBackgroundColor, CSSPropertyBackgroundSize }; |
| 1383 | return parseFillShorthand(propId, properties, WTF_ARRAY_LENGTH(properties), important); |
| 1384 | } |
| 1385 | case CSSPropertyWebkitMask: { |
| 1386 | const CSSPropertyID properties[] = { CSSPropertyWebkitMaskImage, CSSPropertyWebkitMaskRepeat, |
| 1387 | CSSPropertyWebkitMaskPosition, CSSPropertyWebkitMaskOrigin, CSSPropertyWebkitMaskClip, CSSPropertyWebkitMaskSize }; |
| 1388 | return parseFillShorthand(propId, properties, WTF_ARRAY_LENGTH(properties), important); |
| 1389 | } |
| 1390 | case CSSPropertyBorder: |
| 1391 | // [ 'border-width' || 'border-style' || <color> ] | inherit |
| 1392 | { |
| 1393 | if (parseShorthand(propId, parsingShorthandForProperty(CSSPropertyBorder), important)) { |
| 1394 | // The CSS3 Borders and Backgrounds specification says that border also resets border-image. It's as |
| 1395 | // though a value of none was specified for the image. |
| 1396 | addExpandedPropertyForValue(CSSPropertyBorderImage, cssValuePool().createImplicitInitialValue(), important); |
| 1397 | return true; |
| 1398 | } |
| 1399 | return false; |
| 1400 | } |
| 1401 | case CSSPropertyBorderTop: |
| 1402 | // [ 'border-top-width' || 'border-style' || <color> ] | inherit |
| 1403 | return parseShorthand(propId, borderTopShorthand(), important); |
| 1404 | case CSSPropertyBorderRight: |
| 1405 | // [ 'border-right-width' || 'border-style' || <color> ] | inherit |
| 1406 | return parseShorthand(propId, borderRightShorthand(), important); |
| 1407 | case CSSPropertyBorderBottom: |
| 1408 | // [ 'border-bottom-width' || 'border-style' || <color> ] | inherit |
| 1409 | return parseShorthand(propId, borderBottomShorthand(), important); |
| 1410 | case CSSPropertyBorderLeft: |
| 1411 | // [ 'border-left-width' || 'border-style' || <color> ] | inherit |
| 1412 | return parseShorthand(propId, borderLeftShorthand(), important); |
| 1413 | case CSSPropertyWebkitBorderStart: |
| 1414 | return parseShorthand(propId, webkitBorderStartShorthand(), important); |
| 1415 | case CSSPropertyWebkitBorderEnd: |
| 1416 | return parseShorthand(propId, webkitBorderEndShorthand(), important); |
| 1417 | case CSSPropertyWebkitBorderBefore: |
| 1418 | return parseShorthand(propId, webkitBorderBeforeShorthand(), important); |
| 1419 | case CSSPropertyWebkitBorderAfter: |
| 1420 | return parseShorthand(propId, webkitBorderAfterShorthand(), important); |
| 1421 | case CSSPropertyOutline: |
| 1422 | // [ 'outline-color' || 'outline-style' || 'outline-width' ] | inherit |
| 1423 | return parseShorthand(propId, outlineShorthand(), important); |
| 1424 | case CSSPropertyBorderColor: |
| 1425 | // <color>{1,4} | inherit |
| 1426 | return parse4Values(propId, borderColorShorthand().properties(), important); |
| 1427 | case CSSPropertyBorderWidth: |
| 1428 | // <border-width>{1,4} | inherit |
| 1429 | return parse4Values(propId, borderWidthShorthand().properties(), important); |
| 1430 | case CSSPropertyBorderStyle: |
| 1431 | // <border-style>{1,4} | inherit |
| 1432 | return parse4Values(propId, borderStyleShorthand().properties(), important); |
| 1433 | case CSSPropertyMargin: |
| 1434 | // <margin-width>{1,4} | inherit |
| 1435 | return parse4Values(propId, marginShorthand().properties(), important); |
| 1436 | case CSSPropertyPadding: |
| 1437 | // <padding-width>{1,4} | inherit |
| 1438 | return parse4Values(propId, paddingShorthand().properties(), important); |
| 1439 | case CSSPropertyFlexFlow: |
| 1440 | return parseShorthand(propId, flexFlowShorthand(), important); |
| 1441 | case CSSPropertyFont: |
| 1442 | // [ [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? |
| 1443 | // 'font-family' ] | caption | icon | menu | message-box | small-caption | status-bar | inherit |
| 1444 | if (id >= CSSValueCaption && id <= CSSValueStatusBar) |
| 1445 | validPrimitive = true; |
| 1446 | else |
| 1447 | return parseFont(important); |
| 1448 | break; |
| 1449 | case CSSPropertyListStyle: |
| 1450 | return parseShorthand(propId, listStyleShorthand(), important); |
| 1451 | case CSSPropertyWebkitColumns: |
| 1452 | return parseColumnsShorthand(important); |
| 1453 | case CSSPropertyWebkitColumnRule: |
| 1454 | return parseShorthand(propId, webkitColumnRuleShorthand(), important); |
| 1455 | case CSSPropertyWebkitTextStroke: |
| 1456 | return parseShorthand(propId, webkitTextStrokeShorthand(), important); |
| 1457 | case CSSPropertyAnimation: |
| 1458 | if (!RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled()) |
| 1459 | break; |
| 1460 | case CSSPropertyWebkitAnimation: |
| 1461 | return parseAnimationShorthand(propId, important); |
| 1462 | case CSSPropertyTransition: |
| 1463 | case CSSPropertyWebkitTransition: |
| 1464 | return parseTransitionShorthand(propId, important); |
| 1465 | case CSSPropertyInvalid: |
| 1466 | return false; |
| 1467 | case CSSPropertyPage: |
| 1468 | return parsePage(propId, important); |
| 1469 | case CSSPropertyFontStretch: |
| 1470 | return false; |
| 1471 | // CSS Text Layout Module Level 3: Vertical writing support |
| 1472 | case CSSPropertyWebkitTextEmphasis: |
| 1473 | return parseShorthand(propId, webkitTextEmphasisShorthand(), important); |
| 1474 | |
| 1475 | case CSSPropertyWebkitTextEmphasisStyle: |
| 1476 | return parseTextEmphasisStyle(important); |
| 1477 | |
| 1478 | case CSSPropertyWebkitTextOrientation: |
| 1479 | // FIXME: For now just support sideways, sideways-right, upright and vertical-right. |
| 1480 | if (id == CSSValueSideways || id == CSSValueSidewaysRight || id == CSSValueVerticalRight || id == CSSValueUpright) |
| 1481 | validPrimitive = true; |
| 1482 | break; |
| 1483 | |
| 1484 | case CSSPropertyWebkitLineBoxContain: |
| 1485 | if (id == CSSValueNone) |
| 1486 | validPrimitive = true; |
| 1487 | else |
| 1488 | return parseLineBoxContain(important); |
| 1489 | break; |
| 1490 | case CSSPropertyWebkitFontFeatureSettings: |
| 1491 | if (id == CSSValueNormal) |
| 1492 | validPrimitive = true; |
| 1493 | else |
| 1494 | return parseFontFeatureSettings(important); |
| 1495 | break; |
| 1496 | |
| 1497 | case CSSPropertyFontVariantLigatures: |
| 1498 | if (id == CSSValueNormal) |
| 1499 | validPrimitive = true; |
| 1500 | else |
| 1501 | return parseFontVariantLigatures(important); |
| 1502 | break; |
| 1503 | case CSSPropertyWebkitClipPath: |
| 1504 | if (id == CSSValueNone) { |
| 1505 | validPrimitive = true; |
| 1506 | } else if (value->unit == CSSParserValue::Function) { |
| 1507 | parsedValue = parseBasicShape(); |
| 1508 | } else if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| 1509 | parsedValue = CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_URI); |
| 1510 | addProperty(propId, parsedValue.release(), important); |
| 1511 | return true; |
| 1512 | } |
| 1513 | break; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1514 | case CSSPropertyShapeOutside: |
| 1515 | parsedValue = parseShapeProperty(propId); |
| 1516 | break; |
| 1517 | case CSSPropertyShapeMargin: |
Ben Murdoch | 6f543c7 | 2014-04-16 11:17:22 +0100 | [diff] [blame] | 1518 | validPrimitive = (RuntimeEnabledFeatures::cssShapesEnabled() && !id && validUnit(value, FLength | FPercent | FNonNeg)); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1519 | break; |
| 1520 | case CSSPropertyShapeImageThreshold: |
| 1521 | validPrimitive = (RuntimeEnabledFeatures::cssShapesEnabled() && !id && validUnit(value, FNumber)); |
| 1522 | break; |
| 1523 | |
| 1524 | case CSSPropertyTouchAction: |
| 1525 | // auto | none | [pan-x || pan-y] | manipulation |
| 1526 | return parseTouchAction(important); |
| 1527 | |
| 1528 | case CSSPropertyAlignSelf: |
| 1529 | ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled()); |
| 1530 | return parseItemPositionOverflowPosition(propId, important); |
| 1531 | |
| 1532 | case CSSPropertyAlignItems: |
| 1533 | ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled()); |
| 1534 | return parseItemPositionOverflowPosition(propId, important); |
| 1535 | |
| 1536 | case CSSPropertyBorderBottomStyle: |
| 1537 | case CSSPropertyBorderCollapse: |
| 1538 | case CSSPropertyBorderLeftStyle: |
| 1539 | case CSSPropertyBorderRightStyle: |
| 1540 | case CSSPropertyBorderTopStyle: |
| 1541 | case CSSPropertyBoxSizing: |
| 1542 | case CSSPropertyCaptionSide: |
| 1543 | case CSSPropertyClear: |
| 1544 | case CSSPropertyDirection: |
| 1545 | case CSSPropertyDisplay: |
| 1546 | case CSSPropertyEmptyCells: |
| 1547 | case CSSPropertyFloat: |
| 1548 | case CSSPropertyFontStyle: |
| 1549 | case CSSPropertyImageRendering: |
| 1550 | case CSSPropertyListStylePosition: |
| 1551 | case CSSPropertyListStyleType: |
| 1552 | case CSSPropertyObjectFit: |
| 1553 | case CSSPropertyOutlineStyle: |
| 1554 | case CSSPropertyOverflowWrap: |
| 1555 | case CSSPropertyOverflowX: |
| 1556 | case CSSPropertyOverflowY: |
| 1557 | case CSSPropertyPageBreakAfter: |
| 1558 | case CSSPropertyPageBreakBefore: |
| 1559 | case CSSPropertyPageBreakInside: |
| 1560 | case CSSPropertyPointerEvents: |
| 1561 | case CSSPropertyPosition: |
| 1562 | case CSSPropertyResize: |
| 1563 | case CSSPropertySpeak: |
| 1564 | case CSSPropertyTableLayout: |
| 1565 | case CSSPropertyTextAlignLast: |
| 1566 | case CSSPropertyTextJustify: |
| 1567 | case CSSPropertyTextLineThroughMode: |
| 1568 | case CSSPropertyTextLineThroughStyle: |
| 1569 | case CSSPropertyTextOverflow: |
| 1570 | case CSSPropertyTextOverlineMode: |
| 1571 | case CSSPropertyTextOverlineStyle: |
| 1572 | case CSSPropertyTextRendering: |
| 1573 | case CSSPropertyTextTransform: |
| 1574 | case CSSPropertyTextUnderlineMode: |
| 1575 | case CSSPropertyTextUnderlineStyle: |
| 1576 | case CSSPropertyTouchActionDelay: |
| 1577 | case CSSPropertyVisibility: |
| 1578 | case CSSPropertyWebkitAppearance: |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1579 | case CSSPropertyBackfaceVisibility: |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1580 | case CSSPropertyWebkitBackfaceVisibility: |
| 1581 | case CSSPropertyWebkitBorderAfterStyle: |
| 1582 | case CSSPropertyWebkitBorderBeforeStyle: |
| 1583 | case CSSPropertyWebkitBorderEndStyle: |
| 1584 | case CSSPropertyWebkitBorderFit: |
| 1585 | case CSSPropertyWebkitBorderStartStyle: |
| 1586 | case CSSPropertyWebkitBoxAlign: |
| 1587 | case CSSPropertyWebkitBoxDecorationBreak: |
| 1588 | case CSSPropertyWebkitBoxDirection: |
| 1589 | case CSSPropertyWebkitBoxLines: |
| 1590 | case CSSPropertyWebkitBoxOrient: |
| 1591 | case CSSPropertyWebkitBoxPack: |
| 1592 | case CSSPropertyInternalCallback: |
| 1593 | case CSSPropertyWebkitColumnBreakAfter: |
| 1594 | case CSSPropertyWebkitColumnBreakBefore: |
| 1595 | case CSSPropertyWebkitColumnBreakInside: |
| 1596 | case CSSPropertyColumnFill: |
| 1597 | case CSSPropertyWebkitColumnRuleStyle: |
| 1598 | case CSSPropertyAlignContent: |
| 1599 | case CSSPropertyFlexDirection: |
| 1600 | case CSSPropertyFlexWrap: |
| 1601 | case CSSPropertyJustifyContent: |
| 1602 | case CSSPropertyFontKerning: |
| 1603 | case CSSPropertyWebkitFontSmoothing: |
| 1604 | case CSSPropertyGridAutoFlow: |
| 1605 | case CSSPropertyWebkitLineBreak: |
| 1606 | case CSSPropertyWebkitMarginAfterCollapse: |
| 1607 | case CSSPropertyWebkitMarginBeforeCollapse: |
| 1608 | case CSSPropertyWebkitMarginBottomCollapse: |
| 1609 | case CSSPropertyWebkitMarginTopCollapse: |
| 1610 | case CSSPropertyInternalMarqueeDirection: |
| 1611 | case CSSPropertyInternalMarqueeStyle: |
| 1612 | case CSSPropertyWebkitPrintColorAdjust: |
| 1613 | case CSSPropertyWebkitRtlOrdering: |
| 1614 | case CSSPropertyWebkitRubyPosition: |
| 1615 | case CSSPropertyWebkitTextCombine: |
| 1616 | case CSSPropertyWebkitTextEmphasisPosition: |
| 1617 | case CSSPropertyWebkitTextSecurity: |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1618 | case CSSPropertyTransformStyle: |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1619 | case CSSPropertyWebkitTransformStyle: |
| 1620 | case CSSPropertyWebkitUserDrag: |
| 1621 | case CSSPropertyWebkitUserModify: |
| 1622 | case CSSPropertyWebkitUserSelect: |
| 1623 | case CSSPropertyWebkitWrapFlow: |
| 1624 | case CSSPropertyWebkitWrapThrough: |
| 1625 | case CSSPropertyWebkitWritingMode: |
| 1626 | case CSSPropertyWhiteSpace: |
| 1627 | case CSSPropertyWordBreak: |
| 1628 | case CSSPropertyWordWrap: |
| 1629 | case CSSPropertyMixBlendMode: |
| 1630 | case CSSPropertyIsolation: |
| 1631 | // These properties should be handled before in isValidKeywordPropertyAndValue(). |
| 1632 | ASSERT_NOT_REACHED(); |
| 1633 | return false; |
| 1634 | // Properties below are validated inside parseViewportProperty, because we |
| 1635 | // check for parser state. We need to invalidate if someone adds them outside |
| 1636 | // a @viewport rule. |
| 1637 | case CSSPropertyMaxZoom: |
| 1638 | case CSSPropertyMinZoom: |
| 1639 | case CSSPropertyOrientation: |
| 1640 | case CSSPropertyUserZoom: |
| 1641 | validPrimitive = false; |
| 1642 | break; |
| 1643 | default: |
| 1644 | return parseSVGValue(propId, important); |
| 1645 | } |
| 1646 | |
| 1647 | if (validPrimitive) { |
| 1648 | parsedValue = parseValidPrimitive(id, value); |
| 1649 | m_valueList->next(); |
| 1650 | } |
| 1651 | ASSERT(!m_parsedCalculation); |
| 1652 | if (parsedValue) { |
| 1653 | if (!m_valueList->current() || inShorthand()) { |
| 1654 | addProperty(propId, parsedValue.release(), important); |
| 1655 | return true; |
| 1656 | } |
| 1657 | } |
| 1658 | return false; |
| 1659 | } |
| 1660 | |
| 1661 | void CSSPropertyParser::addFillValue(RefPtrWillBeRawPtr<CSSValue>& lval, PassRefPtrWillBeRawPtr<CSSValue> rval) |
| 1662 | { |
| 1663 | if (lval) { |
| 1664 | if (lval->isBaseValueList()) |
| 1665 | toCSSValueList(lval.get())->append(rval); |
| 1666 | else { |
| 1667 | PassRefPtrWillBeRawPtr<CSSValue> oldlVal(lval.release()); |
| 1668 | PassRefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); |
| 1669 | list->append(oldlVal); |
| 1670 | list->append(rval); |
| 1671 | lval = list; |
| 1672 | } |
| 1673 | } |
| 1674 | else |
| 1675 | lval = rval; |
| 1676 | } |
| 1677 | |
| 1678 | static bool parseBackgroundClip(CSSParserValue* parserValue, RefPtrWillBeRawPtr<CSSValue>& cssValue) |
| 1679 | { |
| 1680 | if (parserValue->id == CSSValueBorderBox || parserValue->id == CSSValuePaddingBox |
| 1681 | || parserValue->id == CSSValueContentBox || parserValue->id == CSSValueWebkitText) { |
| 1682 | cssValue = cssValuePool().createIdentifierValue(parserValue->id); |
| 1683 | return true; |
| 1684 | } |
| 1685 | return false; |
| 1686 | } |
| 1687 | |
| 1688 | const int cMaxFillProperties = 9; |
| 1689 | |
| 1690 | bool CSSPropertyParser::parseFillShorthand(CSSPropertyID propId, const CSSPropertyID* properties, int numProperties, bool important) |
| 1691 | { |
| 1692 | ASSERT(numProperties <= cMaxFillProperties); |
| 1693 | if (numProperties > cMaxFillProperties) |
| 1694 | return false; |
| 1695 | |
| 1696 | ShorthandScope scope(this, propId); |
| 1697 | |
| 1698 | bool parsedProperty[cMaxFillProperties] = { false }; |
| 1699 | RefPtrWillBeRawPtr<CSSValue> values[cMaxFillProperties]; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1700 | #if ENABLE(OILPAN) |
| 1701 | // Zero initialize the array of raw pointers. |
| 1702 | memset(&values, 0, sizeof(values)); |
| 1703 | #endif |
| 1704 | RefPtrWillBeRawPtr<CSSValue> clipValue = nullptr; |
| 1705 | RefPtrWillBeRawPtr<CSSValue> positionYValue = nullptr; |
| 1706 | RefPtrWillBeRawPtr<CSSValue> repeatYValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1707 | bool foundClip = false; |
| 1708 | int i; |
| 1709 | bool foundPositionCSSProperty = false; |
| 1710 | |
| 1711 | while (m_valueList->current()) { |
| 1712 | CSSParserValue* val = m_valueList->current(); |
| 1713 | if (val->unit == CSSParserValue::Operator && val->iValue == ',') { |
| 1714 | // We hit the end. Fill in all remaining values with the initial value. |
| 1715 | m_valueList->next(); |
| 1716 | for (i = 0; i < numProperties; ++i) { |
| 1717 | if (properties[i] == CSSPropertyBackgroundColor && parsedProperty[i]) |
| 1718 | // Color is not allowed except as the last item in a list for backgrounds. |
| 1719 | // Reject the entire property. |
| 1720 | return false; |
| 1721 | |
| 1722 | if (!parsedProperty[i] && properties[i] != CSSPropertyBackgroundColor) { |
| 1723 | addFillValue(values[i], cssValuePool().createImplicitInitialValue()); |
| 1724 | if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition) |
| 1725 | addFillValue(positionYValue, cssValuePool().createImplicitInitialValue()); |
| 1726 | if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat) |
| 1727 | addFillValue(repeatYValue, cssValuePool().createImplicitInitialValue()); |
| 1728 | if ((properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) && !parsedProperty[i]) { |
| 1729 | // If background-origin wasn't present, then reset background-clip also. |
| 1730 | addFillValue(clipValue, cssValuePool().createImplicitInitialValue()); |
| 1731 | } |
| 1732 | } |
| 1733 | parsedProperty[i] = false; |
| 1734 | } |
| 1735 | if (!m_valueList->current()) |
| 1736 | break; |
| 1737 | } |
| 1738 | |
| 1739 | bool sizeCSSPropertyExpected = false; |
| 1740 | if (isForwardSlashOperator(val) && foundPositionCSSProperty) { |
| 1741 | sizeCSSPropertyExpected = true; |
| 1742 | m_valueList->next(); |
| 1743 | } |
| 1744 | |
| 1745 | foundPositionCSSProperty = false; |
| 1746 | bool found = false; |
| 1747 | for (i = 0; !found && i < numProperties; ++i) { |
| 1748 | |
| 1749 | if (sizeCSSPropertyExpected && (properties[i] != CSSPropertyBackgroundSize && properties[i] != CSSPropertyWebkitMaskSize)) |
| 1750 | continue; |
| 1751 | if (!sizeCSSPropertyExpected && (properties[i] == CSSPropertyBackgroundSize || properties[i] == CSSPropertyWebkitMaskSize)) |
| 1752 | continue; |
| 1753 | |
| 1754 | if (!parsedProperty[i]) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1755 | RefPtrWillBeRawPtr<CSSValue> val1 = nullptr; |
| 1756 | RefPtrWillBeRawPtr<CSSValue> val2 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1757 | CSSPropertyID propId1, propId2; |
| 1758 | CSSParserValue* parserValue = m_valueList->current(); |
| 1759 | // parseFillProperty() may modify m_implicitShorthand, so we MUST reset it |
| 1760 | // before EACH return below. |
| 1761 | if (parseFillProperty(properties[i], propId1, propId2, val1, val2)) { |
| 1762 | parsedProperty[i] = found = true; |
| 1763 | addFillValue(values[i], val1.release()); |
| 1764 | if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition) |
| 1765 | addFillValue(positionYValue, val2.release()); |
| 1766 | if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat) |
| 1767 | addFillValue(repeatYValue, val2.release()); |
| 1768 | if (properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) { |
| 1769 | // Reparse the value as a clip, and see if we succeed. |
| 1770 | if (parseBackgroundClip(parserValue, val1)) |
| 1771 | addFillValue(clipValue, val1.release()); // The property parsed successfully. |
| 1772 | else |
| 1773 | addFillValue(clipValue, cssValuePool().createImplicitInitialValue()); // Some value was used for origin that is not supported by clip. Just reset clip instead. |
| 1774 | } |
| 1775 | if (properties[i] == CSSPropertyBackgroundClip || properties[i] == CSSPropertyWebkitMaskClip) { |
| 1776 | // Update clipValue |
| 1777 | addFillValue(clipValue, val1.release()); |
| 1778 | foundClip = true; |
| 1779 | } |
| 1780 | if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition) |
| 1781 | foundPositionCSSProperty = true; |
| 1782 | } |
| 1783 | } |
| 1784 | } |
| 1785 | |
| 1786 | // if we didn't find at least one match, this is an |
| 1787 | // invalid shorthand and we have to ignore it |
| 1788 | if (!found) { |
| 1789 | m_implicitShorthand = false; |
| 1790 | return false; |
| 1791 | } |
| 1792 | } |
| 1793 | |
| 1794 | // Now add all of the properties we found. |
| 1795 | for (i = 0; i < numProperties; i++) { |
| 1796 | // Fill in any remaining properties with the initial value. |
| 1797 | if (!parsedProperty[i]) { |
| 1798 | addFillValue(values[i], cssValuePool().createImplicitInitialValue()); |
| 1799 | if (properties[i] == CSSPropertyBackgroundPosition || properties[i] == CSSPropertyWebkitMaskPosition) |
| 1800 | addFillValue(positionYValue, cssValuePool().createImplicitInitialValue()); |
| 1801 | if (properties[i] == CSSPropertyBackgroundRepeat || properties[i] == CSSPropertyWebkitMaskRepeat) |
| 1802 | addFillValue(repeatYValue, cssValuePool().createImplicitInitialValue()); |
| 1803 | if (properties[i] == CSSPropertyBackgroundOrigin || properties[i] == CSSPropertyWebkitMaskOrigin) { |
| 1804 | // If background-origin wasn't present, then reset background-clip also. |
| 1805 | addFillValue(clipValue, cssValuePool().createImplicitInitialValue()); |
| 1806 | } |
| 1807 | } |
| 1808 | if (properties[i] == CSSPropertyBackgroundPosition) { |
| 1809 | addProperty(CSSPropertyBackgroundPositionX, values[i].release(), important); |
| 1810 | // it's OK to call positionYValue.release() since we only see CSSPropertyBackgroundPosition once |
| 1811 | addProperty(CSSPropertyBackgroundPositionY, positionYValue.release(), important); |
| 1812 | } else if (properties[i] == CSSPropertyWebkitMaskPosition) { |
| 1813 | addProperty(CSSPropertyWebkitMaskPositionX, values[i].release(), important); |
| 1814 | // it's OK to call positionYValue.release() since we only see CSSPropertyWebkitMaskPosition once |
| 1815 | addProperty(CSSPropertyWebkitMaskPositionY, positionYValue.release(), important); |
| 1816 | } else if (properties[i] == CSSPropertyBackgroundRepeat) { |
| 1817 | addProperty(CSSPropertyBackgroundRepeatX, values[i].release(), important); |
| 1818 | // it's OK to call repeatYValue.release() since we only see CSSPropertyBackgroundPosition once |
| 1819 | addProperty(CSSPropertyBackgroundRepeatY, repeatYValue.release(), important); |
| 1820 | } else if (properties[i] == CSSPropertyWebkitMaskRepeat) { |
| 1821 | addProperty(CSSPropertyWebkitMaskRepeatX, values[i].release(), important); |
| 1822 | // it's OK to call repeatYValue.release() since we only see CSSPropertyBackgroundPosition once |
| 1823 | addProperty(CSSPropertyWebkitMaskRepeatY, repeatYValue.release(), important); |
| 1824 | } else if ((properties[i] == CSSPropertyBackgroundClip || properties[i] == CSSPropertyWebkitMaskClip) && !foundClip) |
| 1825 | // Value is already set while updating origin |
| 1826 | continue; |
| 1827 | else if (properties[i] == CSSPropertyBackgroundSize && !parsedProperty[i] && m_context.useLegacyBackgroundSizeShorthandBehavior()) |
| 1828 | continue; |
| 1829 | else |
| 1830 | addProperty(properties[i], values[i].release(), important); |
| 1831 | |
| 1832 | // Add in clip values when we hit the corresponding origin property. |
| 1833 | if (properties[i] == CSSPropertyBackgroundOrigin && !foundClip) |
| 1834 | addProperty(CSSPropertyBackgroundClip, clipValue.release(), important); |
| 1835 | else if (properties[i] == CSSPropertyWebkitMaskOrigin && !foundClip) |
| 1836 | addProperty(CSSPropertyWebkitMaskClip, clipValue.release(), important); |
| 1837 | } |
| 1838 | |
| 1839 | m_implicitShorthand = false; |
| 1840 | return true; |
| 1841 | } |
| 1842 | |
| 1843 | void CSSPropertyParser::addAnimationValue(RefPtrWillBeRawPtr<CSSValue>& lval, PassRefPtrWillBeRawPtr<CSSValue> rval) |
| 1844 | { |
| 1845 | if (lval) { |
| 1846 | if (lval->isValueList()) |
| 1847 | toCSSValueList(lval.get())->append(rval); |
| 1848 | else { |
| 1849 | PassRefPtrWillBeRawPtr<CSSValue> oldVal(lval.release()); |
| 1850 | PassRefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); |
| 1851 | list->append(oldVal); |
| 1852 | list->append(rval); |
| 1853 | lval = list; |
| 1854 | } |
| 1855 | } |
| 1856 | else |
| 1857 | lval = rval; |
| 1858 | } |
| 1859 | |
| 1860 | bool CSSPropertyParser::parseAnimationShorthand(CSSPropertyID propId, bool important) |
| 1861 | { |
| 1862 | const StylePropertyShorthand& animationProperties = parsingShorthandForProperty(propId); |
| 1863 | const unsigned numProperties = 8; |
| 1864 | |
| 1865 | // The list of properties in the shorthand should be the same |
| 1866 | // length as the list with animation name in last position, even though they are |
| 1867 | // in a different order. |
| 1868 | ASSERT(numProperties == animationProperties.length()); |
| 1869 | ASSERT(numProperties == shorthandForProperty(propId).length()); |
| 1870 | |
| 1871 | ShorthandScope scope(this, propId); |
| 1872 | |
| 1873 | bool parsedProperty[numProperties] = { false }; |
| 1874 | AnimationParseContext context; |
| 1875 | RefPtrWillBeRawPtr<CSSValue> values[numProperties]; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1876 | #if ENABLE(OILPAN) |
| 1877 | // Zero initialize the array of raw pointers. |
| 1878 | memset(&values, 0, sizeof(values)); |
| 1879 | #endif |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1880 | |
| 1881 | unsigned i; |
| 1882 | while (m_valueList->current()) { |
| 1883 | CSSParserValue* val = m_valueList->current(); |
| 1884 | if (val->unit == CSSParserValue::Operator && val->iValue == ',') { |
| 1885 | // We hit the end. Fill in all remaining values with the initial value. |
| 1886 | m_valueList->next(); |
| 1887 | for (i = 0; i < numProperties; ++i) { |
| 1888 | if (!parsedProperty[i]) |
| 1889 | addAnimationValue(values[i], cssValuePool().createImplicitInitialValue()); |
| 1890 | parsedProperty[i] = false; |
| 1891 | } |
| 1892 | if (!m_valueList->current()) |
| 1893 | break; |
| 1894 | context.commitFirstAnimation(); |
| 1895 | } |
| 1896 | |
| 1897 | bool found = false; |
| 1898 | for (i = 0; i < numProperties; ++i) { |
| 1899 | if (!parsedProperty[i]) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1900 | RefPtrWillBeRawPtr<CSSValue> val = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1901 | if (parseAnimationProperty(animationProperties.properties()[i], val, context)) { |
| 1902 | parsedProperty[i] = found = true; |
| 1903 | addAnimationValue(values[i], val.release()); |
| 1904 | break; |
| 1905 | } |
| 1906 | } |
| 1907 | } |
| 1908 | |
| 1909 | // if we didn't find at least one match, this is an |
| 1910 | // invalid shorthand and we have to ignore it |
| 1911 | if (!found) |
| 1912 | return false; |
| 1913 | } |
| 1914 | |
| 1915 | for (i = 0; i < numProperties; ++i) { |
| 1916 | // If we didn't find the property, set an intial value. |
| 1917 | if (!parsedProperty[i]) |
| 1918 | addAnimationValue(values[i], cssValuePool().createImplicitInitialValue()); |
| 1919 | |
| 1920 | if (RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled()) |
| 1921 | addPropertyWithPrefixingVariant(animationProperties.properties()[i], values[i].release(), important); |
| 1922 | else |
| 1923 | addProperty(animationProperties.properties()[i], values[i].release(), important); |
| 1924 | } |
| 1925 | |
| 1926 | return true; |
| 1927 | } |
| 1928 | |
| 1929 | bool CSSPropertyParser::parseTransitionShorthand(CSSPropertyID propId, bool important) |
| 1930 | { |
| 1931 | const unsigned numProperties = 4; |
| 1932 | const StylePropertyShorthand& shorthand = shorthandForProperty(propId); |
| 1933 | ASSERT(numProperties == shorthand.length()); |
| 1934 | |
| 1935 | ShorthandScope scope(this, propId); |
| 1936 | |
| 1937 | bool parsedProperty[numProperties] = { false }; |
| 1938 | AnimationParseContext context; |
| 1939 | RefPtrWillBeRawPtr<CSSValue> values[numProperties]; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1940 | #if ENABLE(OILPAN) |
| 1941 | // Zero initialize the array of raw pointers. |
| 1942 | memset(&values, 0, sizeof(values)); |
| 1943 | #endif |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1944 | |
| 1945 | unsigned i; |
| 1946 | while (m_valueList->current()) { |
| 1947 | CSSParserValue* val = m_valueList->current(); |
| 1948 | if (val->unit == CSSParserValue::Operator && val->iValue == ',') { |
| 1949 | // We hit the end. Fill in all remaining values with the initial value. |
| 1950 | m_valueList->next(); |
| 1951 | for (i = 0; i < numProperties; ++i) { |
| 1952 | if (!parsedProperty[i]) |
| 1953 | addAnimationValue(values[i], cssValuePool().createImplicitInitialValue()); |
| 1954 | parsedProperty[i] = false; |
| 1955 | } |
| 1956 | if (!m_valueList->current()) |
| 1957 | break; |
| 1958 | context.commitFirstAnimation(); |
| 1959 | } |
| 1960 | |
| 1961 | bool found = false; |
| 1962 | for (i = 0; !found && i < numProperties; ++i) { |
| 1963 | if (!parsedProperty[i]) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 1964 | RefPtrWillBeRawPtr<CSSValue> val = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 1965 | if (parseAnimationProperty(shorthand.properties()[i], val, context)) { |
| 1966 | parsedProperty[i] = found = true; |
| 1967 | addAnimationValue(values[i], val.release()); |
| 1968 | } |
| 1969 | |
| 1970 | // There are more values to process but 'none' or 'all' were already defined as the animation property, the declaration becomes invalid. |
| 1971 | if (!context.animationPropertyKeywordAllowed() && context.hasCommittedFirstAnimation()) |
| 1972 | return false; |
| 1973 | } |
| 1974 | } |
| 1975 | |
| 1976 | // if we didn't find at least one match, this is an |
| 1977 | // invalid shorthand and we have to ignore it |
| 1978 | if (!found) |
| 1979 | return false; |
| 1980 | } |
| 1981 | |
| 1982 | // Fill in any remaining properties with the initial value. |
| 1983 | for (i = 0; i < numProperties; ++i) { |
| 1984 | if (!parsedProperty[i]) |
| 1985 | addAnimationValue(values[i], cssValuePool().createImplicitInitialValue()); |
| 1986 | } |
| 1987 | |
| 1988 | // Now add all of the properties we found. |
| 1989 | for (i = 0; i < numProperties; i++) |
| 1990 | addPropertyWithPrefixingVariant(shorthand.properties()[i], values[i].release(), important); |
| 1991 | |
| 1992 | return true; |
| 1993 | } |
| 1994 | |
| 1995 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseColumnWidth() |
| 1996 | { |
| 1997 | CSSParserValue* value = m_valueList->current(); |
| 1998 | // Always parse lengths in strict mode here, since it would be ambiguous otherwise when used in |
| 1999 | // the 'columns' shorthand property. |
| 2000 | if (value->id == CSSValueAuto |
| 2001 | || (validUnit(value, FLength | FNonNeg, HTMLStandardMode) && value->fValue)) { |
| 2002 | RefPtrWillBeRawPtr<CSSValue> parsedValue = parseValidPrimitive(value->id, value); |
| 2003 | m_valueList->next(); |
| 2004 | return parsedValue; |
| 2005 | } |
| 2006 | return nullptr; |
| 2007 | } |
| 2008 | |
| 2009 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseColumnCount() |
| 2010 | { |
| 2011 | CSSParserValue* value = m_valueList->current(); |
| 2012 | if (value->id == CSSValueAuto |
| 2013 | || (!value->id && validUnit(value, FPositiveInteger, HTMLQuirksMode))) { |
| 2014 | RefPtrWillBeRawPtr<CSSValue> parsedValue = parseValidPrimitive(value->id, value); |
| 2015 | m_valueList->next(); |
| 2016 | return parsedValue; |
| 2017 | } |
| 2018 | return nullptr; |
| 2019 | } |
| 2020 | |
| 2021 | bool CSSPropertyParser::parseColumnsShorthand(bool important) |
| 2022 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2023 | RefPtrWillBeRawPtr<CSSValue> columnWidth = nullptr; |
| 2024 | RefPtrWillBeRawPtr<CSSValue> columnCount = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2025 | bool hasPendingExplicitAuto = false; |
| 2026 | |
| 2027 | for (unsigned propertiesParsed = 0; CSSParserValue* value = m_valueList->current(); propertiesParsed++) { |
| 2028 | if (propertiesParsed >= 2) |
| 2029 | return false; // Too many values for this shorthand. Invalid declaration. |
| 2030 | if (!propertiesParsed && value->id == CSSValueAuto) { |
| 2031 | // 'auto' is a valid value for any of the two longhands, and at this point we |
| 2032 | // don't know which one(s) it is meant for. We need to see if there are other |
| 2033 | // values first. |
| 2034 | m_valueList->next(); |
| 2035 | hasPendingExplicitAuto = true; |
| 2036 | } else { |
| 2037 | if (!columnWidth) { |
| 2038 | if ((columnWidth = parseColumnWidth())) |
| 2039 | continue; |
| 2040 | } |
| 2041 | if (!columnCount) { |
| 2042 | if ((columnCount = parseColumnCount())) |
| 2043 | continue; |
| 2044 | } |
| 2045 | // If we didn't find at least one match, this is an |
| 2046 | // invalid shorthand and we have to ignore it. |
| 2047 | return false; |
| 2048 | } |
| 2049 | } |
| 2050 | if (hasPendingExplicitAuto) { |
| 2051 | // Time to assign the previously skipped 'auto' value to a property. If both properties are |
| 2052 | // unassigned at this point (i.e. 'columns:auto'), it doesn't matter that much which one we |
| 2053 | // set (although it does make a slight difference to web-inspector). The one we don't set |
| 2054 | // here will get an implicit 'auto' value further down. |
| 2055 | if (!columnWidth) { |
| 2056 | columnWidth = cssValuePool().createIdentifierValue(CSSValueAuto); |
| 2057 | } else { |
| 2058 | ASSERT(!columnCount); |
| 2059 | columnCount = cssValuePool().createIdentifierValue(CSSValueAuto); |
| 2060 | } |
| 2061 | } |
| 2062 | ASSERT(columnCount || columnWidth); |
| 2063 | |
| 2064 | // Any unassigned property at this point will become implicit 'auto'. |
| 2065 | if (columnWidth) |
| 2066 | addProperty(CSSPropertyWebkitColumnWidth, columnWidth, important); |
| 2067 | else |
| 2068 | addProperty(CSSPropertyWebkitColumnWidth, cssValuePool().createIdentifierValue(CSSValueAuto), important, true /* implicit */); |
| 2069 | if (columnCount) |
| 2070 | addProperty(CSSPropertyWebkitColumnCount, columnCount, important); |
| 2071 | else |
| 2072 | addProperty(CSSPropertyWebkitColumnCount, cssValuePool().createIdentifierValue(CSSValueAuto), important, true /* implicit */); |
| 2073 | return true; |
| 2074 | } |
| 2075 | |
| 2076 | bool CSSPropertyParser::parseShorthand(CSSPropertyID propId, const StylePropertyShorthand& shorthand, bool important) |
| 2077 | { |
| 2078 | // We try to match as many properties as possible |
| 2079 | // We set up an array of booleans to mark which property has been found, |
| 2080 | // and we try to search for properties until it makes no longer any sense. |
| 2081 | ShorthandScope scope(this, propId); |
| 2082 | |
| 2083 | bool found = false; |
| 2084 | unsigned propertiesParsed = 0; |
| 2085 | bool propertyFound[6] = { false, false, false, false, false, false }; // 6 is enough size. |
| 2086 | |
| 2087 | while (m_valueList->current()) { |
| 2088 | found = false; |
| 2089 | for (unsigned propIndex = 0; !found && propIndex < shorthand.length(); ++propIndex) { |
| 2090 | if (!propertyFound[propIndex] && parseValue(shorthand.properties()[propIndex], important)) { |
| 2091 | propertyFound[propIndex] = found = true; |
| 2092 | propertiesParsed++; |
| 2093 | } |
| 2094 | } |
| 2095 | |
| 2096 | // if we didn't find at least one match, this is an |
| 2097 | // invalid shorthand and we have to ignore it |
| 2098 | if (!found) |
| 2099 | return false; |
| 2100 | } |
| 2101 | |
| 2102 | if (propertiesParsed == shorthand.length()) |
| 2103 | return true; |
| 2104 | |
| 2105 | // Fill in any remaining properties with the initial value. |
| 2106 | ImplicitScope implicitScope(this, PropertyImplicit); |
| 2107 | const StylePropertyShorthand* const* const propertiesForInitialization = shorthand.propertiesForInitialization(); |
| 2108 | for (unsigned i = 0; i < shorthand.length(); ++i) { |
| 2109 | if (propertyFound[i]) |
| 2110 | continue; |
| 2111 | |
| 2112 | if (propertiesForInitialization) { |
| 2113 | const StylePropertyShorthand& initProperties = *(propertiesForInitialization[i]); |
| 2114 | for (unsigned propIndex = 0; propIndex < initProperties.length(); ++propIndex) |
| 2115 | addProperty(initProperties.properties()[propIndex], cssValuePool().createImplicitInitialValue(), important); |
| 2116 | } else |
| 2117 | addProperty(shorthand.properties()[i], cssValuePool().createImplicitInitialValue(), important); |
| 2118 | } |
| 2119 | |
| 2120 | return true; |
| 2121 | } |
| 2122 | |
| 2123 | bool CSSPropertyParser::parse4Values(CSSPropertyID propId, const CSSPropertyID *properties, bool important) |
| 2124 | { |
| 2125 | /* From the CSS 2 specs, 8.3 |
| 2126 | * If there is only one value, it applies to all sides. If there are two values, the top and |
| 2127 | * bottom margins are set to the first value and the right and left margins are set to the second. |
| 2128 | * If there are three values, the top is set to the first value, the left and right are set to the |
| 2129 | * second, and the bottom is set to the third. If there are four values, they apply to the top, |
| 2130 | * right, bottom, and left, respectively. |
| 2131 | */ |
| 2132 | |
| 2133 | int num = inShorthand() ? 1 : m_valueList->size(); |
| 2134 | |
| 2135 | ShorthandScope scope(this, propId); |
| 2136 | |
| 2137 | // the order is top, right, bottom, left |
| 2138 | switch (num) { |
| 2139 | case 1: { |
| 2140 | if (!parseValue(properties[0], important)) |
| 2141 | return false; |
| 2142 | CSSValue* value = m_parsedProperties.last().value(); |
| 2143 | ImplicitScope implicitScope(this, PropertyImplicit); |
| 2144 | addProperty(properties[1], value, important); |
| 2145 | addProperty(properties[2], value, important); |
| 2146 | addProperty(properties[3], value, important); |
| 2147 | break; |
| 2148 | } |
| 2149 | case 2: { |
| 2150 | if (!parseValue(properties[0], important) || !parseValue(properties[1], important)) |
| 2151 | return false; |
| 2152 | CSSValue* value = m_parsedProperties[m_parsedProperties.size() - 2].value(); |
| 2153 | ImplicitScope implicitScope(this, PropertyImplicit); |
| 2154 | addProperty(properties[2], value, important); |
| 2155 | value = m_parsedProperties[m_parsedProperties.size() - 2].value(); |
| 2156 | addProperty(properties[3], value, important); |
| 2157 | break; |
| 2158 | } |
| 2159 | case 3: { |
| 2160 | if (!parseValue(properties[0], important) || !parseValue(properties[1], important) || !parseValue(properties[2], important)) |
| 2161 | return false; |
| 2162 | CSSValue* value = m_parsedProperties[m_parsedProperties.size() - 2].value(); |
| 2163 | ImplicitScope implicitScope(this, PropertyImplicit); |
| 2164 | addProperty(properties[3], value, important); |
| 2165 | break; |
| 2166 | } |
| 2167 | case 4: { |
| 2168 | if (!parseValue(properties[0], important) || !parseValue(properties[1], important) || |
| 2169 | !parseValue(properties[2], important) || !parseValue(properties[3], important)) |
| 2170 | return false; |
| 2171 | break; |
| 2172 | } |
| 2173 | default: { |
| 2174 | return false; |
| 2175 | } |
| 2176 | } |
| 2177 | |
| 2178 | return true; |
| 2179 | } |
| 2180 | |
| 2181 | // auto | <identifier> |
| 2182 | bool CSSPropertyParser::parsePage(CSSPropertyID propId, bool important) |
| 2183 | { |
| 2184 | ASSERT(propId == CSSPropertyPage); |
| 2185 | |
| 2186 | if (m_valueList->size() != 1) |
| 2187 | return false; |
| 2188 | |
| 2189 | CSSParserValue* value = m_valueList->current(); |
| 2190 | if (!value) |
| 2191 | return false; |
| 2192 | |
| 2193 | if (value->id == CSSValueAuto) { |
| 2194 | addProperty(propId, cssValuePool().createIdentifierValue(value->id), important); |
| 2195 | return true; |
| 2196 | } else if (value->id == 0 && value->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 2197 | addProperty(propId, createPrimitiveStringValue(value), important); |
| 2198 | return true; |
| 2199 | } |
| 2200 | return false; |
| 2201 | } |
| 2202 | |
| 2203 | // <length>{1,2} | auto | [ <page-size> || [ portrait | landscape] ] |
| 2204 | bool CSSPropertyParser::parseSize(CSSPropertyID propId, bool important) |
| 2205 | { |
| 2206 | ASSERT(propId == CSSPropertySize); |
| 2207 | |
| 2208 | if (m_valueList->size() > 2) |
| 2209 | return false; |
| 2210 | |
| 2211 | CSSParserValue* value = m_valueList->current(); |
| 2212 | if (!value) |
| 2213 | return false; |
| 2214 | |
| 2215 | RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated(); |
| 2216 | |
| 2217 | // First parameter. |
| 2218 | SizeParameterType paramType = parseSizeParameter(parsedValues.get(), value, None); |
| 2219 | if (paramType == None) |
| 2220 | return false; |
| 2221 | |
| 2222 | // Second parameter, if any. |
| 2223 | value = m_valueList->next(); |
| 2224 | if (value) { |
| 2225 | paramType = parseSizeParameter(parsedValues.get(), value, paramType); |
| 2226 | if (paramType == None) |
| 2227 | return false; |
| 2228 | } |
| 2229 | |
| 2230 | addProperty(propId, parsedValues.release(), important); |
| 2231 | return true; |
| 2232 | } |
| 2233 | |
| 2234 | CSSPropertyParser::SizeParameterType CSSPropertyParser::parseSizeParameter(CSSValueList* parsedValues, CSSParserValue* value, SizeParameterType prevParamType) |
| 2235 | { |
| 2236 | switch (value->id) { |
| 2237 | case CSSValueAuto: |
| 2238 | if (prevParamType == None) { |
| 2239 | parsedValues->append(cssValuePool().createIdentifierValue(value->id)); |
| 2240 | return Auto; |
| 2241 | } |
| 2242 | return None; |
| 2243 | case CSSValueLandscape: |
| 2244 | case CSSValuePortrait: |
| 2245 | if (prevParamType == None || prevParamType == PageSize) { |
| 2246 | parsedValues->append(cssValuePool().createIdentifierValue(value->id)); |
| 2247 | return Orientation; |
| 2248 | } |
| 2249 | return None; |
| 2250 | case CSSValueA3: |
| 2251 | case CSSValueA4: |
| 2252 | case CSSValueA5: |
| 2253 | case CSSValueB4: |
| 2254 | case CSSValueB5: |
| 2255 | case CSSValueLedger: |
| 2256 | case CSSValueLegal: |
| 2257 | case CSSValueLetter: |
| 2258 | if (prevParamType == None || prevParamType == Orientation) { |
| 2259 | // Normalize to Page Size then Orientation order by prepending. |
| 2260 | // This is not specified by the CSS3 Paged Media specification, but for simpler processing later (StyleResolver::applyPageSizeProperty). |
| 2261 | parsedValues->prepend(cssValuePool().createIdentifierValue(value->id)); |
| 2262 | return PageSize; |
| 2263 | } |
| 2264 | return None; |
| 2265 | case 0: |
| 2266 | if (validUnit(value, FLength | FNonNeg) && (prevParamType == None || prevParamType == Length)) { |
| 2267 | parsedValues->append(createPrimitiveNumericValue(value)); |
| 2268 | return Length; |
| 2269 | } |
| 2270 | return None; |
| 2271 | default: |
| 2272 | return None; |
| 2273 | } |
| 2274 | } |
| 2275 | |
| 2276 | // [ <string> <string> ]+ | inherit | none |
| 2277 | // inherit and none are handled in parseValue. |
| 2278 | bool CSSPropertyParser::parseQuotes(CSSPropertyID propId, bool important) |
| 2279 | { |
| 2280 | RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated(); |
| 2281 | while (CSSParserValue* val = m_valueList->current()) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2282 | RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2283 | if (val->unit == CSSPrimitiveValue::CSS_STRING) |
| 2284 | parsedValue = CSSPrimitiveValue::create(val->string, CSSPrimitiveValue::CSS_STRING); |
| 2285 | else |
| 2286 | break; |
| 2287 | values->append(parsedValue.release()); |
| 2288 | m_valueList->next(); |
| 2289 | } |
| 2290 | if (values->length()) { |
| 2291 | addProperty(propId, values.release(), important); |
| 2292 | m_valueList->next(); |
| 2293 | return true; |
| 2294 | } |
| 2295 | return false; |
| 2296 | } |
| 2297 | |
| 2298 | // [ <string> | <uri> | <counter> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit |
| 2299 | // in CSS 2.1 this got somewhat reduced: |
| 2300 | // [ <string> | attr(X) | open-quote | close-quote | no-open-quote | no-close-quote ]+ | inherit |
| 2301 | bool CSSPropertyParser::parseContent(CSSPropertyID propId, bool important) |
| 2302 | { |
| 2303 | RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated(); |
| 2304 | |
| 2305 | while (CSSParserValue* val = m_valueList->current()) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2306 | RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2307 | if (val->unit == CSSPrimitiveValue::CSS_URI) { |
| 2308 | // url |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 2309 | parsedValue = createCSSImageValueWithReferrer(val->string, completeURL(val->string)); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2310 | } else if (val->unit == CSSParserValue::Function) { |
| 2311 | // attr(X) | counter(X [,Y]) | counters(X, Y, [,Z]) | -webkit-gradient(...) |
| 2312 | CSSParserValueList* args = val->function->args.get(); |
| 2313 | if (!args) |
| 2314 | return false; |
| 2315 | if (equalIgnoringCase(val->function->name, "attr(")) { |
| 2316 | parsedValue = parseAttr(args); |
| 2317 | if (!parsedValue) |
| 2318 | return false; |
| 2319 | } else if (equalIgnoringCase(val->function->name, "counter(")) { |
| 2320 | parsedValue = parseCounterContent(args, false); |
| 2321 | if (!parsedValue) |
| 2322 | return false; |
| 2323 | } else if (equalIgnoringCase(val->function->name, "counters(")) { |
| 2324 | parsedValue = parseCounterContent(args, true); |
| 2325 | if (!parsedValue) |
| 2326 | return false; |
| 2327 | } else if (equalIgnoringCase(val->function->name, "-webkit-image-set(")) { |
| 2328 | parsedValue = parseImageSet(m_valueList.get()); |
| 2329 | if (!parsedValue) |
| 2330 | return false; |
| 2331 | } else if (isGeneratedImageValue(val)) { |
| 2332 | if (!parseGeneratedImage(m_valueList.get(), parsedValue)) |
| 2333 | return false; |
| 2334 | } else |
| 2335 | return false; |
| 2336 | } else if (val->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 2337 | // open-quote |
| 2338 | // close-quote |
| 2339 | // no-open-quote |
| 2340 | // no-close-quote |
| 2341 | // inherit |
| 2342 | // FIXME: These are not yet implemented (http://bugs.webkit.org/show_bug.cgi?id=6503). |
| 2343 | // none |
| 2344 | // normal |
| 2345 | switch (val->id) { |
| 2346 | case CSSValueOpenQuote: |
| 2347 | case CSSValueCloseQuote: |
| 2348 | case CSSValueNoOpenQuote: |
| 2349 | case CSSValueNoCloseQuote: |
| 2350 | case CSSValueNone: |
| 2351 | case CSSValueNormal: |
| 2352 | parsedValue = cssValuePool().createIdentifierValue(val->id); |
| 2353 | default: |
| 2354 | break; |
| 2355 | } |
| 2356 | } else if (val->unit == CSSPrimitiveValue::CSS_STRING) { |
| 2357 | parsedValue = createPrimitiveStringValue(val); |
| 2358 | } |
| 2359 | if (!parsedValue) |
| 2360 | break; |
| 2361 | values->append(parsedValue.release()); |
| 2362 | m_valueList->next(); |
| 2363 | } |
| 2364 | |
| 2365 | if (values->length()) { |
| 2366 | addProperty(propId, values.release(), important); |
| 2367 | m_valueList->next(); |
| 2368 | return true; |
| 2369 | } |
| 2370 | |
| 2371 | return false; |
| 2372 | } |
| 2373 | |
| 2374 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAttr(CSSParserValueList* args) |
| 2375 | { |
| 2376 | if (args->size() != 1) |
| 2377 | return nullptr; |
| 2378 | |
| 2379 | CSSParserValue* a = args->current(); |
| 2380 | |
| 2381 | if (a->unit != CSSPrimitiveValue::CSS_IDENT) |
| 2382 | return nullptr; |
| 2383 | |
| 2384 | String attrName = a->string; |
| 2385 | // CSS allows identifiers with "-" at the start, like "-webkit-mask-image". |
| 2386 | // But HTML attribute names can't have those characters, and we should not |
| 2387 | // even parse them inside attr(). |
| 2388 | if (attrName[0] == '-') |
| 2389 | return nullptr; |
| 2390 | |
| 2391 | if (m_context.isHTMLDocument()) |
| 2392 | attrName = attrName.lower(); |
| 2393 | |
| 2394 | return cssValuePool().createValue(attrName, CSSPrimitiveValue::CSS_ATTR); |
| 2395 | } |
| 2396 | |
| 2397 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseBackgroundColor() |
| 2398 | { |
| 2399 | CSSValueID id = m_valueList->current()->id; |
| 2400 | if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu || id == CSSValueCurrentcolor || |
| 2401 | (id >= CSSValueGrey && id < CSSValueWebkitText && inQuirksMode())) |
| 2402 | return cssValuePool().createIdentifierValue(id); |
| 2403 | return parseColor(); |
| 2404 | } |
| 2405 | |
| 2406 | bool CSSPropertyParser::parseFillImage(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value) |
| 2407 | { |
| 2408 | if (valueList->current()->id == CSSValueNone) { |
| 2409 | value = cssValuePool().createIdentifierValue(CSSValueNone); |
| 2410 | return true; |
| 2411 | } |
| 2412 | if (valueList->current()->unit == CSSPrimitiveValue::CSS_URI) { |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 2413 | value = createCSSImageValueWithReferrer(valueList->current()->string, completeURL(valueList->current()->string)); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2414 | return true; |
| 2415 | } |
| 2416 | |
| 2417 | if (isGeneratedImageValue(valueList->current())) |
| 2418 | return parseGeneratedImage(valueList, value); |
| 2419 | |
| 2420 | if (valueList->current()->unit == CSSParserValue::Function && equalIgnoringCase(valueList->current()->function->name, "-webkit-image-set(")) { |
| 2421 | value = parseImageSet(m_valueList.get()); |
| 2422 | if (value) |
| 2423 | return true; |
| 2424 | } |
| 2425 | |
| 2426 | return false; |
| 2427 | } |
| 2428 | |
| 2429 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseFillPositionX(CSSParserValueList* valueList) |
| 2430 | { |
| 2431 | int id = valueList->current()->id; |
| 2432 | if (id == CSSValueLeft || id == CSSValueRight || id == CSSValueCenter) { |
| 2433 | int percent = 0; |
| 2434 | if (id == CSSValueRight) |
| 2435 | percent = 100; |
| 2436 | else if (id == CSSValueCenter) |
| 2437 | percent = 50; |
| 2438 | return cssValuePool().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE); |
| 2439 | } |
| 2440 | if (validUnit(valueList->current(), FPercent | FLength)) |
| 2441 | return createPrimitiveNumericValue(valueList->current()); |
| 2442 | return nullptr; |
| 2443 | } |
| 2444 | |
| 2445 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseFillPositionY(CSSParserValueList* valueList) |
| 2446 | { |
| 2447 | int id = valueList->current()->id; |
| 2448 | if (id == CSSValueTop || id == CSSValueBottom || id == CSSValueCenter) { |
| 2449 | int percent = 0; |
| 2450 | if (id == CSSValueBottom) |
| 2451 | percent = 100; |
| 2452 | else if (id == CSSValueCenter) |
| 2453 | percent = 50; |
| 2454 | return cssValuePool().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE); |
| 2455 | } |
| 2456 | if (validUnit(valueList->current(), FPercent | FLength)) |
| 2457 | return createPrimitiveNumericValue(valueList->current()); |
| 2458 | return nullptr; |
| 2459 | } |
| 2460 | |
| 2461 | PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseFillPositionComponent(CSSParserValueList* valueList, unsigned& cumulativeFlags, FillPositionFlag& individualFlag, FillPositionParsingMode parsingMode) |
| 2462 | { |
| 2463 | CSSValueID id = valueList->current()->id; |
| 2464 | if (id == CSSValueLeft || id == CSSValueTop || id == CSSValueRight || id == CSSValueBottom || id == CSSValueCenter) { |
| 2465 | int percent = 0; |
| 2466 | if (id == CSSValueLeft || id == CSSValueRight) { |
| 2467 | if (cumulativeFlags & XFillPosition) |
| 2468 | return nullptr; |
| 2469 | cumulativeFlags |= XFillPosition; |
| 2470 | individualFlag = XFillPosition; |
| 2471 | if (id == CSSValueRight) |
| 2472 | percent = 100; |
| 2473 | } |
| 2474 | else if (id == CSSValueTop || id == CSSValueBottom) { |
| 2475 | if (cumulativeFlags & YFillPosition) |
| 2476 | return nullptr; |
| 2477 | cumulativeFlags |= YFillPosition; |
| 2478 | individualFlag = YFillPosition; |
| 2479 | if (id == CSSValueBottom) |
| 2480 | percent = 100; |
| 2481 | } else if (id == CSSValueCenter) { |
| 2482 | // Center is ambiguous, so we're not sure which position we've found yet, an x or a y. |
| 2483 | percent = 50; |
| 2484 | cumulativeFlags |= AmbiguousFillPosition; |
| 2485 | individualFlag = AmbiguousFillPosition; |
| 2486 | } |
| 2487 | |
| 2488 | if (parsingMode == ResolveValuesAsKeyword) |
| 2489 | return cssValuePool().createIdentifierValue(id); |
| 2490 | |
| 2491 | return cssValuePool().createValue(percent, CSSPrimitiveValue::CSS_PERCENTAGE); |
| 2492 | } |
| 2493 | if (validUnit(valueList->current(), FPercent | FLength)) { |
| 2494 | if (!cumulativeFlags) { |
| 2495 | cumulativeFlags |= XFillPosition; |
| 2496 | individualFlag = XFillPosition; |
| 2497 | } else if (cumulativeFlags & (XFillPosition | AmbiguousFillPosition)) { |
| 2498 | cumulativeFlags |= YFillPosition; |
| 2499 | individualFlag = YFillPosition; |
| 2500 | } else { |
| 2501 | if (m_parsedCalculation) |
| 2502 | m_parsedCalculation.release(); |
| 2503 | return nullptr; |
| 2504 | } |
| 2505 | return createPrimitiveNumericValue(valueList->current()); |
| 2506 | } |
| 2507 | return nullptr; |
| 2508 | } |
| 2509 | |
| 2510 | static bool isValueConflictingWithCurrentEdge(int value1, int value2) |
| 2511 | { |
| 2512 | if ((value1 == CSSValueLeft || value1 == CSSValueRight) && (value2 == CSSValueLeft || value2 == CSSValueRight)) |
| 2513 | return true; |
| 2514 | |
| 2515 | if ((value1 == CSSValueTop || value1 == CSSValueBottom) && (value2 == CSSValueTop || value2 == CSSValueBottom)) |
| 2516 | return true; |
| 2517 | |
| 2518 | return false; |
| 2519 | } |
| 2520 | |
| 2521 | static bool isFillPositionKeyword(CSSValueID value) |
| 2522 | { |
| 2523 | return value == CSSValueLeft || value == CSSValueTop || value == CSSValueBottom || value == CSSValueRight || value == CSSValueCenter; |
| 2524 | } |
| 2525 | |
| 2526 | void CSSPropertyParser::parse4ValuesFillPosition(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2) |
| 2527 | { |
| 2528 | // [ left | right ] [ <percentage] | <length> ] && [ top | bottom ] [ <percentage> | <length> ] |
| 2529 | // In the case of 4 values <position> requires the second value to be a length or a percentage. |
| 2530 | if (isFillPositionKeyword(parsedValue2->getValueID())) |
| 2531 | return; |
| 2532 | |
| 2533 | unsigned cumulativeFlags = 0; |
| 2534 | FillPositionFlag value3Flag = InvalidFillPosition; |
| 2535 | RefPtrWillBeRawPtr<CSSPrimitiveValue> value3 = parseFillPositionComponent(valueList, cumulativeFlags, value3Flag, ResolveValuesAsKeyword); |
| 2536 | if (!value3) |
| 2537 | return; |
| 2538 | |
| 2539 | CSSValueID ident1 = parsedValue1->getValueID(); |
| 2540 | CSSValueID ident3 = value3->getValueID(); |
| 2541 | |
| 2542 | if (ident1 == CSSValueCenter) |
| 2543 | return; |
| 2544 | |
| 2545 | if (!isFillPositionKeyword(ident3) || ident3 == CSSValueCenter) |
| 2546 | return; |
| 2547 | |
| 2548 | // We need to check if the values are not conflicting, e.g. they are not on the same edge. It is |
| 2549 | // needed as the second call to parseFillPositionComponent was on purpose not checking it. In the |
| 2550 | // case of two values top 20px is invalid but in the case of 4 values it becomes valid. |
| 2551 | if (isValueConflictingWithCurrentEdge(ident1, ident3)) |
| 2552 | return; |
| 2553 | |
| 2554 | valueList->next(); |
| 2555 | |
| 2556 | cumulativeFlags = 0; |
| 2557 | FillPositionFlag value4Flag = InvalidFillPosition; |
| 2558 | RefPtrWillBeRawPtr<CSSPrimitiveValue> value4 = parseFillPositionComponent(valueList, cumulativeFlags, value4Flag, ResolveValuesAsKeyword); |
| 2559 | if (!value4) |
| 2560 | return; |
| 2561 | |
| 2562 | // 4th value must be a length or a percentage. |
| 2563 | if (isFillPositionKeyword(value4->getValueID())) |
| 2564 | return; |
| 2565 | |
| 2566 | value1 = createPrimitiveValuePair(parsedValue1, parsedValue2); |
| 2567 | value2 = createPrimitiveValuePair(value3, value4); |
| 2568 | |
| 2569 | if (ident1 == CSSValueTop || ident1 == CSSValueBottom) |
| 2570 | value1.swap(value2); |
| 2571 | |
| 2572 | valueList->next(); |
| 2573 | } |
| 2574 | void CSSPropertyParser::parse3ValuesFillPosition(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1, PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2) |
| 2575 | { |
| 2576 | unsigned cumulativeFlags = 0; |
| 2577 | FillPositionFlag value3Flag = InvalidFillPosition; |
| 2578 | RefPtrWillBeRawPtr<CSSPrimitiveValue> value3 = parseFillPositionComponent(valueList, cumulativeFlags, value3Flag, ResolveValuesAsKeyword); |
| 2579 | |
| 2580 | // value3 is not an expected value, we return. |
| 2581 | if (!value3) |
| 2582 | return; |
| 2583 | |
| 2584 | valueList->next(); |
| 2585 | |
| 2586 | bool swapNeeded = false; |
| 2587 | CSSValueID ident1 = parsedValue1->getValueID(); |
| 2588 | CSSValueID ident2 = parsedValue2->getValueID(); |
| 2589 | CSSValueID ident3 = value3->getValueID(); |
| 2590 | |
| 2591 | CSSValueID firstPositionKeyword; |
| 2592 | CSSValueID secondPositionKeyword; |
| 2593 | |
| 2594 | if (ident1 == CSSValueCenter) { |
| 2595 | // <position> requires the first 'center' to be followed by a keyword. |
| 2596 | if (!isFillPositionKeyword(ident2)) |
| 2597 | return; |
| 2598 | |
| 2599 | // If 'center' is the first keyword then the last one needs to be a length. |
| 2600 | if (isFillPositionKeyword(ident3)) |
| 2601 | return; |
| 2602 | |
| 2603 | firstPositionKeyword = CSSValueLeft; |
| 2604 | if (ident2 == CSSValueLeft || ident2 == CSSValueRight) { |
| 2605 | firstPositionKeyword = CSSValueTop; |
| 2606 | swapNeeded = true; |
| 2607 | } |
| 2608 | value1 = createPrimitiveValuePair(cssValuePool().createIdentifierValue(firstPositionKeyword), cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE)); |
| 2609 | value2 = createPrimitiveValuePair(parsedValue2, value3); |
| 2610 | } else if (ident3 == CSSValueCenter) { |
| 2611 | if (isFillPositionKeyword(ident2)) |
| 2612 | return; |
| 2613 | |
| 2614 | secondPositionKeyword = CSSValueTop; |
| 2615 | if (ident1 == CSSValueTop || ident1 == CSSValueBottom) { |
| 2616 | secondPositionKeyword = CSSValueLeft; |
| 2617 | swapNeeded = true; |
| 2618 | } |
| 2619 | value1 = createPrimitiveValuePair(parsedValue1, parsedValue2); |
| 2620 | value2 = createPrimitiveValuePair(cssValuePool().createIdentifierValue(secondPositionKeyword), cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE)); |
| 2621 | } else { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2622 | RefPtrWillBeRawPtr<CSSPrimitiveValue> firstPositionValue = nullptr; |
| 2623 | RefPtrWillBeRawPtr<CSSPrimitiveValue> secondPositionValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2624 | |
| 2625 | if (isFillPositionKeyword(ident2)) { |
| 2626 | // To match CSS grammar, we should only accept: [ center | left | right | bottom | top ] [ left | right | top | bottom ] [ <percentage> | <length> ]. |
| 2627 | ASSERT(ident2 != CSSValueCenter); |
| 2628 | |
| 2629 | if (isFillPositionKeyword(ident3)) |
| 2630 | return; |
| 2631 | |
| 2632 | secondPositionValue = value3; |
| 2633 | secondPositionKeyword = ident2; |
| 2634 | firstPositionValue = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PERCENTAGE); |
| 2635 | } else { |
| 2636 | // Per CSS, we should only accept: [ right | left | top | bottom ] [ <percentage> | <length> ] [ center | left | right | bottom | top ]. |
| 2637 | if (!isFillPositionKeyword(ident3)) |
| 2638 | return; |
| 2639 | |
| 2640 | firstPositionValue = parsedValue2; |
| 2641 | secondPositionKeyword = ident3; |
| 2642 | secondPositionValue = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PERCENTAGE); |
| 2643 | } |
| 2644 | |
| 2645 | if (isValueConflictingWithCurrentEdge(ident1, secondPositionKeyword)) |
| 2646 | return; |
| 2647 | |
| 2648 | value1 = createPrimitiveValuePair(parsedValue1, firstPositionValue); |
| 2649 | value2 = createPrimitiveValuePair(cssValuePool().createIdentifierValue(secondPositionKeyword), secondPositionValue); |
| 2650 | } |
| 2651 | |
| 2652 | if (ident1 == CSSValueTop || ident1 == CSSValueBottom || swapNeeded) |
| 2653 | value1.swap(value2); |
| 2654 | |
| 2655 | #ifndef NDEBUG |
| 2656 | CSSPrimitiveValue* first = toCSSPrimitiveValue(value1.get()); |
| 2657 | CSSPrimitiveValue* second = toCSSPrimitiveValue(value2.get()); |
| 2658 | ident1 = first->getPairValue()->first()->getValueID(); |
| 2659 | ident2 = second->getPairValue()->first()->getValueID(); |
| 2660 | ASSERT(ident1 == CSSValueLeft || ident1 == CSSValueRight); |
| 2661 | ASSERT(ident2 == CSSValueBottom || ident2 == CSSValueTop); |
| 2662 | #endif |
| 2663 | } |
| 2664 | |
| 2665 | inline bool CSSPropertyParser::isPotentialPositionValue(CSSParserValue* value) |
| 2666 | { |
| 2667 | return isFillPositionKeyword(value->id) || validUnit(value, FPercent | FLength, ReleaseParsedCalcValue); |
| 2668 | } |
| 2669 | |
| 2670 | void CSSPropertyParser::parseFillPosition(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2) |
| 2671 | { |
| 2672 | unsigned numberOfValues = 0; |
| 2673 | for (unsigned i = valueList->currentIndex(); i < valueList->size(); ++i, ++numberOfValues) { |
| 2674 | CSSParserValue* current = valueList->valueAt(i); |
| 2675 | if (isComma(current) || !current || isForwardSlashOperator(current) || !isPotentialPositionValue(current)) |
| 2676 | break; |
| 2677 | } |
| 2678 | |
| 2679 | if (numberOfValues > 4) |
| 2680 | return; |
| 2681 | |
| 2682 | // If we are parsing two values, we can safely call the CSS 2.1 parsing function and return. |
| 2683 | if (numberOfValues <= 2) { |
| 2684 | parse2ValuesFillPosition(valueList, value1, value2); |
| 2685 | return; |
| 2686 | } |
| 2687 | |
| 2688 | ASSERT(numberOfValues > 2 && numberOfValues <= 4); |
| 2689 | |
| 2690 | CSSParserValue* value = valueList->current(); |
| 2691 | |
| 2692 | // <position> requires the first value to be a background keyword. |
| 2693 | if (!isFillPositionKeyword(value->id)) |
| 2694 | return; |
| 2695 | |
| 2696 | // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length. |
| 2697 | unsigned cumulativeFlags = 0; |
| 2698 | FillPositionFlag value1Flag = InvalidFillPosition; |
| 2699 | FillPositionFlag value2Flag = InvalidFillPosition; |
| 2700 | value1 = parseFillPositionComponent(valueList, cumulativeFlags, value1Flag, ResolveValuesAsKeyword); |
| 2701 | if (!value1) |
| 2702 | return; |
| 2703 | |
| 2704 | valueList->next(); |
| 2705 | |
| 2706 | // In case we are parsing more than two values, relax the check inside of parseFillPositionComponent. top 20px is |
| 2707 | // a valid start for <position>. |
| 2708 | cumulativeFlags = AmbiguousFillPosition; |
| 2709 | value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag, ResolveValuesAsKeyword); |
| 2710 | if (value2) |
| 2711 | valueList->next(); |
| 2712 | else { |
| 2713 | value1.clear(); |
| 2714 | return; |
| 2715 | } |
| 2716 | |
| 2717 | RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1 = toCSSPrimitiveValue(value1.get()); |
| 2718 | RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2 = toCSSPrimitiveValue(value2.get()); |
| 2719 | |
| 2720 | value1.clear(); |
| 2721 | value2.clear(); |
| 2722 | |
| 2723 | // Per CSS3 syntax, <position> can't have 'center' as its second keyword as we have more arguments to follow. |
| 2724 | if (parsedValue2->getValueID() == CSSValueCenter) |
| 2725 | return; |
| 2726 | |
| 2727 | if (numberOfValues == 3) |
| 2728 | parse3ValuesFillPosition(valueList, value1, value2, parsedValue1.release(), parsedValue2.release()); |
| 2729 | else |
| 2730 | parse4ValuesFillPosition(valueList, value1, value2, parsedValue1.release(), parsedValue2.release()); |
| 2731 | } |
| 2732 | |
| 2733 | void CSSPropertyParser::parse2ValuesFillPosition(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2) |
| 2734 | { |
| 2735 | // Parse the first value. We're just making sure that it is one of the valid keywords or a percentage/length. |
| 2736 | unsigned cumulativeFlags = 0; |
| 2737 | FillPositionFlag value1Flag = InvalidFillPosition; |
| 2738 | FillPositionFlag value2Flag = InvalidFillPosition; |
| 2739 | value1 = parseFillPositionComponent(valueList, cumulativeFlags, value1Flag); |
| 2740 | if (!value1) |
| 2741 | return; |
| 2742 | |
| 2743 | // It only takes one value for background-position to be correctly parsed if it was specified in a shorthand (since we |
| 2744 | // can assume that any other values belong to the rest of the shorthand). If we're not parsing a shorthand, though, the |
| 2745 | // value was explicitly specified for our property. |
| 2746 | CSSParserValue* value = valueList->next(); |
| 2747 | |
| 2748 | // First check for the comma. If so, we are finished parsing this value or value pair. |
| 2749 | if (isComma(value)) |
| 2750 | value = 0; |
| 2751 | |
| 2752 | if (value) { |
| 2753 | value2 = parseFillPositionComponent(valueList, cumulativeFlags, value2Flag); |
| 2754 | if (value2) |
| 2755 | valueList->next(); |
| 2756 | else { |
| 2757 | if (!inShorthand()) { |
| 2758 | value1.clear(); |
| 2759 | return; |
| 2760 | } |
| 2761 | } |
| 2762 | } |
| 2763 | |
| 2764 | if (!value2) |
| 2765 | // Only one value was specified. If that value was not a keyword, then it sets the x position, and the y position |
| 2766 | // is simply 50%. This is our default. |
| 2767 | // For keywords, the keyword was either an x-keyword (left/right), a y-keyword (top/bottom), or an ambiguous keyword (center). |
| 2768 | // For left/right/center, the default of 50% in the y is still correct. |
| 2769 | value2 = cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE); |
| 2770 | |
| 2771 | if (value1Flag == YFillPosition || value2Flag == XFillPosition) |
| 2772 | value1.swap(value2); |
| 2773 | } |
| 2774 | |
| 2775 | void CSSPropertyParser::parseFillRepeat(RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2) |
| 2776 | { |
| 2777 | CSSValueID id = m_valueList->current()->id; |
| 2778 | if (id == CSSValueRepeatX) { |
| 2779 | m_implicitShorthand = true; |
| 2780 | value1 = cssValuePool().createIdentifierValue(CSSValueRepeat); |
| 2781 | value2 = cssValuePool().createIdentifierValue(CSSValueNoRepeat); |
| 2782 | m_valueList->next(); |
| 2783 | return; |
| 2784 | } |
| 2785 | if (id == CSSValueRepeatY) { |
| 2786 | m_implicitShorthand = true; |
| 2787 | value1 = cssValuePool().createIdentifierValue(CSSValueNoRepeat); |
| 2788 | value2 = cssValuePool().createIdentifierValue(CSSValueRepeat); |
| 2789 | m_valueList->next(); |
| 2790 | return; |
| 2791 | } |
| 2792 | if (id == CSSValueRepeat || id == CSSValueNoRepeat || id == CSSValueRound || id == CSSValueSpace) |
| 2793 | value1 = cssValuePool().createIdentifierValue(id); |
| 2794 | else { |
| 2795 | value1 = nullptr; |
| 2796 | return; |
| 2797 | } |
| 2798 | |
| 2799 | CSSParserValue* value = m_valueList->next(); |
| 2800 | |
| 2801 | // Parse the second value if one is available |
| 2802 | if (value && !isComma(value)) { |
| 2803 | id = value->id; |
| 2804 | if (id == CSSValueRepeat || id == CSSValueNoRepeat || id == CSSValueRound || id == CSSValueSpace) { |
| 2805 | value2 = cssValuePool().createIdentifierValue(id); |
| 2806 | m_valueList->next(); |
| 2807 | return; |
| 2808 | } |
| 2809 | } |
| 2810 | |
| 2811 | // If only one value was specified, value2 is the same as value1. |
| 2812 | m_implicitShorthand = true; |
| 2813 | value2 = cssValuePool().createIdentifierValue(toCSSPrimitiveValue(value1.get())->getValueID()); |
| 2814 | } |
| 2815 | |
| 2816 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseFillSize(CSSPropertyID propId, bool& allowComma) |
| 2817 | { |
| 2818 | allowComma = true; |
| 2819 | CSSParserValue* value = m_valueList->current(); |
| 2820 | |
| 2821 | if (value->id == CSSValueContain || value->id == CSSValueCover) |
| 2822 | return cssValuePool().createIdentifierValue(value->id); |
| 2823 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2824 | RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue1 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2825 | |
| 2826 | if (value->id == CSSValueAuto) |
| 2827 | parsedValue1 = cssValuePool().createIdentifierValue(CSSValueAuto); |
| 2828 | else { |
| 2829 | if (!validUnit(value, FLength | FPercent)) |
| 2830 | return nullptr; |
| 2831 | parsedValue1 = createPrimitiveNumericValue(value); |
| 2832 | } |
| 2833 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2834 | RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue2 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2835 | if ((value = m_valueList->next())) { |
| 2836 | if (value->unit == CSSParserValue::Operator && value->iValue == ',') |
| 2837 | allowComma = false; |
| 2838 | else if (value->id != CSSValueAuto) { |
| 2839 | if (!validUnit(value, FLength | FPercent)) { |
| 2840 | if (!inShorthand()) |
| 2841 | return nullptr; |
| 2842 | // We need to rewind the value list, so that when it is advanced we'll end up back at this value. |
| 2843 | m_valueList->previous(); |
| 2844 | } else |
| 2845 | parsedValue2 = createPrimitiveNumericValue(value); |
| 2846 | } |
| 2847 | } else if (!parsedValue2 && propId == CSSPropertyWebkitBackgroundSize) { |
| 2848 | // For backwards compatibility we set the second value to the first if it is omitted. |
| 2849 | // We only need to do this for -webkit-background-size. It should be safe to let masks match |
| 2850 | // the real property. |
| 2851 | parsedValue2 = parsedValue1; |
| 2852 | } |
| 2853 | |
| 2854 | if (!parsedValue2) |
| 2855 | return parsedValue1; |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 2856 | |
| 2857 | Pair::IdenticalValuesPolicy policy = propId == CSSPropertyWebkitBackgroundSize ? |
| 2858 | Pair::DropIdenticalValues : Pair::KeepIdenticalValues; |
| 2859 | |
| 2860 | return createPrimitiveValuePair(parsedValue1.release(), parsedValue2.release(), policy); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2861 | } |
| 2862 | |
| 2863 | bool CSSPropertyParser::parseFillProperty(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, |
| 2864 | RefPtrWillBeRawPtr<CSSValue>& retValue1, RefPtrWillBeRawPtr<CSSValue>& retValue2) |
| 2865 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2866 | RefPtrWillBeRawPtr<CSSValueList> values = nullptr; |
| 2867 | RefPtrWillBeRawPtr<CSSValueList> values2 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2868 | CSSParserValue* val; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2869 | RefPtrWillBeRawPtr<CSSValue> value = nullptr; |
| 2870 | RefPtrWillBeRawPtr<CSSValue> value2 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2871 | |
| 2872 | bool allowComma = false; |
| 2873 | |
| 2874 | retValue1 = retValue2 = nullptr; |
| 2875 | propId1 = propId; |
| 2876 | propId2 = propId; |
| 2877 | if (propId == CSSPropertyBackgroundPosition) { |
| 2878 | propId1 = CSSPropertyBackgroundPositionX; |
| 2879 | propId2 = CSSPropertyBackgroundPositionY; |
| 2880 | } else if (propId == CSSPropertyWebkitMaskPosition) { |
| 2881 | propId1 = CSSPropertyWebkitMaskPositionX; |
| 2882 | propId2 = CSSPropertyWebkitMaskPositionY; |
| 2883 | } else if (propId == CSSPropertyBackgroundRepeat) { |
| 2884 | propId1 = CSSPropertyBackgroundRepeatX; |
| 2885 | propId2 = CSSPropertyBackgroundRepeatY; |
| 2886 | } else if (propId == CSSPropertyWebkitMaskRepeat) { |
| 2887 | propId1 = CSSPropertyWebkitMaskRepeatX; |
| 2888 | propId2 = CSSPropertyWebkitMaskRepeatY; |
| 2889 | } |
| 2890 | |
| 2891 | while ((val = m_valueList->current())) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 2892 | RefPtrWillBeRawPtr<CSSValue> currValue = nullptr; |
| 2893 | RefPtrWillBeRawPtr<CSSValue> currValue2 = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 2894 | |
| 2895 | if (allowComma) { |
| 2896 | if (!isComma(val)) |
| 2897 | return false; |
| 2898 | m_valueList->next(); |
| 2899 | allowComma = false; |
| 2900 | } else { |
| 2901 | allowComma = true; |
| 2902 | switch (propId) { |
| 2903 | case CSSPropertyBackgroundColor: |
| 2904 | currValue = parseBackgroundColor(); |
| 2905 | if (currValue) |
| 2906 | m_valueList->next(); |
| 2907 | break; |
| 2908 | case CSSPropertyBackgroundAttachment: |
| 2909 | if (val->id == CSSValueScroll || val->id == CSSValueFixed || val->id == CSSValueLocal) { |
| 2910 | currValue = cssValuePool().createIdentifierValue(val->id); |
| 2911 | m_valueList->next(); |
| 2912 | } |
| 2913 | break; |
| 2914 | case CSSPropertyBackgroundImage: |
| 2915 | case CSSPropertyWebkitMaskImage: |
| 2916 | if (parseFillImage(m_valueList.get(), currValue)) |
| 2917 | m_valueList->next(); |
| 2918 | break; |
| 2919 | case CSSPropertyWebkitBackgroundClip: |
| 2920 | case CSSPropertyWebkitBackgroundOrigin: |
| 2921 | case CSSPropertyWebkitMaskClip: |
| 2922 | case CSSPropertyWebkitMaskOrigin: |
| 2923 | // The first three values here are deprecated and do not apply to the version of the property that has |
| 2924 | // the -webkit- prefix removed. |
| 2925 | if (val->id == CSSValueBorder || val->id == CSSValuePadding || val->id == CSSValueContent || |
| 2926 | val->id == CSSValueBorderBox || val->id == CSSValuePaddingBox || val->id == CSSValueContentBox || |
| 2927 | ((propId == CSSPropertyWebkitBackgroundClip || propId == CSSPropertyWebkitMaskClip) && |
| 2928 | (val->id == CSSValueText || val->id == CSSValueWebkitText))) { |
| 2929 | currValue = cssValuePool().createIdentifierValue(val->id); |
| 2930 | m_valueList->next(); |
| 2931 | } |
| 2932 | break; |
| 2933 | case CSSPropertyBackgroundClip: |
| 2934 | if (parseBackgroundClip(val, currValue)) |
| 2935 | m_valueList->next(); |
| 2936 | break; |
| 2937 | case CSSPropertyBackgroundOrigin: |
| 2938 | if (val->id == CSSValueBorderBox || val->id == CSSValuePaddingBox || val->id == CSSValueContentBox) { |
| 2939 | currValue = cssValuePool().createIdentifierValue(val->id); |
| 2940 | m_valueList->next(); |
| 2941 | } |
| 2942 | break; |
| 2943 | case CSSPropertyBackgroundPosition: |
| 2944 | case CSSPropertyWebkitMaskPosition: |
| 2945 | parseFillPosition(m_valueList.get(), currValue, currValue2); |
| 2946 | // parseFillPosition advances the m_valueList pointer. |
| 2947 | break; |
| 2948 | case CSSPropertyBackgroundPositionX: |
| 2949 | case CSSPropertyWebkitMaskPositionX: { |
| 2950 | currValue = parseFillPositionX(m_valueList.get()); |
| 2951 | if (currValue) |
| 2952 | m_valueList->next(); |
| 2953 | break; |
| 2954 | } |
| 2955 | case CSSPropertyBackgroundPositionY: |
| 2956 | case CSSPropertyWebkitMaskPositionY: { |
| 2957 | currValue = parseFillPositionY(m_valueList.get()); |
| 2958 | if (currValue) |
| 2959 | m_valueList->next(); |
| 2960 | break; |
| 2961 | } |
| 2962 | case CSSPropertyWebkitBackgroundComposite: |
| 2963 | case CSSPropertyWebkitMaskComposite: |
| 2964 | if (val->id >= CSSValueClear && val->id <= CSSValuePlusLighter) { |
| 2965 | currValue = cssValuePool().createIdentifierValue(val->id); |
| 2966 | m_valueList->next(); |
| 2967 | } |
| 2968 | break; |
| 2969 | case CSSPropertyBackgroundBlendMode: |
| 2970 | if (val->id == CSSValueNormal || val->id == CSSValueMultiply |
| 2971 | || val->id == CSSValueScreen || val->id == CSSValueOverlay || val->id == CSSValueDarken |
| 2972 | || val->id == CSSValueLighten || val->id == CSSValueColorDodge || val->id == CSSValueColorBurn |
| 2973 | || val->id == CSSValueHardLight || val->id == CSSValueSoftLight || val->id == CSSValueDifference |
| 2974 | || val->id == CSSValueExclusion || val->id == CSSValueHue || val->id == CSSValueSaturation |
| 2975 | || val->id == CSSValueColor || val->id == CSSValueLuminosity) { |
| 2976 | currValue = cssValuePool().createIdentifierValue(val->id); |
| 2977 | m_valueList->next(); |
| 2978 | } |
| 2979 | break; |
| 2980 | case CSSPropertyBackgroundRepeat: |
| 2981 | case CSSPropertyWebkitMaskRepeat: |
| 2982 | parseFillRepeat(currValue, currValue2); |
| 2983 | // parseFillRepeat advances the m_valueList pointer |
| 2984 | break; |
| 2985 | case CSSPropertyBackgroundSize: |
| 2986 | case CSSPropertyWebkitBackgroundSize: |
| 2987 | case CSSPropertyWebkitMaskSize: { |
| 2988 | currValue = parseFillSize(propId, allowComma); |
| 2989 | if (currValue) |
| 2990 | m_valueList->next(); |
| 2991 | break; |
| 2992 | } |
| 2993 | case CSSPropertyMaskSourceType: { |
| 2994 | if (RuntimeEnabledFeatures::cssMaskSourceTypeEnabled()) { |
| 2995 | if (val->id == CSSValueAuto || val->id == CSSValueAlpha || val->id == CSSValueLuminance) { |
| 2996 | currValue = cssValuePool().createIdentifierValue(val->id); |
| 2997 | m_valueList->next(); |
| 2998 | } else { |
| 2999 | currValue = nullptr; |
| 3000 | } |
| 3001 | } |
| 3002 | break; |
| 3003 | } |
| 3004 | default: |
| 3005 | break; |
| 3006 | } |
| 3007 | if (!currValue) |
| 3008 | return false; |
| 3009 | |
| 3010 | if (value && !values) { |
| 3011 | values = CSSValueList::createCommaSeparated(); |
| 3012 | values->append(value.release()); |
| 3013 | } |
| 3014 | |
| 3015 | if (value2 && !values2) { |
| 3016 | values2 = CSSValueList::createCommaSeparated(); |
| 3017 | values2->append(value2.release()); |
| 3018 | } |
| 3019 | |
| 3020 | if (values) |
| 3021 | values->append(currValue.release()); |
| 3022 | else |
| 3023 | value = currValue.release(); |
| 3024 | if (currValue2) { |
| 3025 | if (values2) |
| 3026 | values2->append(currValue2.release()); |
| 3027 | else |
| 3028 | value2 = currValue2.release(); |
| 3029 | } |
| 3030 | } |
| 3031 | |
| 3032 | // When parsing any fill shorthand property, we let it handle building up the lists for all |
| 3033 | // properties. |
| 3034 | if (inShorthand()) |
| 3035 | break; |
| 3036 | } |
| 3037 | |
| 3038 | if (values && values->length()) { |
| 3039 | retValue1 = values.release(); |
| 3040 | if (values2 && values2->length()) |
| 3041 | retValue2 = values2.release(); |
| 3042 | return true; |
| 3043 | } |
| 3044 | if (value) { |
| 3045 | retValue1 = value.release(); |
| 3046 | retValue2 = value2.release(); |
| 3047 | return true; |
| 3048 | } |
| 3049 | return false; |
| 3050 | } |
| 3051 | |
| 3052 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationDelay() |
| 3053 | { |
| 3054 | CSSParserValue* value = m_valueList->current(); |
| 3055 | if (validUnit(value, FTime)) |
| 3056 | return createPrimitiveNumericValue(value); |
| 3057 | return nullptr; |
| 3058 | } |
| 3059 | |
| 3060 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationDirection() |
| 3061 | { |
| 3062 | CSSParserValue* value = m_valueList->current(); |
| 3063 | if (value->id == CSSValueNormal || value->id == CSSValueAlternate || value->id == CSSValueReverse || value->id == CSSValueAlternateReverse) |
| 3064 | return cssValuePool().createIdentifierValue(value->id); |
| 3065 | return nullptr; |
| 3066 | } |
| 3067 | |
| 3068 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationDuration() |
| 3069 | { |
| 3070 | CSSParserValue* value = m_valueList->current(); |
| 3071 | if (validUnit(value, FTime | FNonNeg)) |
| 3072 | return createPrimitiveNumericValue(value); |
| 3073 | return nullptr; |
| 3074 | } |
| 3075 | |
| 3076 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationFillMode() |
| 3077 | { |
| 3078 | CSSParserValue* value = m_valueList->current(); |
| 3079 | if (value->id == CSSValueNone || value->id == CSSValueForwards || value->id == CSSValueBackwards || value->id == CSSValueBoth) |
| 3080 | return cssValuePool().createIdentifierValue(value->id); |
| 3081 | return nullptr; |
| 3082 | } |
| 3083 | |
| 3084 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationIterationCount() |
| 3085 | { |
| 3086 | CSSParserValue* value = m_valueList->current(); |
| 3087 | if (value->id == CSSValueInfinite) |
| 3088 | return cssValuePool().createIdentifierValue(value->id); |
| 3089 | if (validUnit(value, FNumber | FNonNeg)) |
| 3090 | return createPrimitiveNumericValue(value); |
| 3091 | return nullptr; |
| 3092 | } |
| 3093 | |
| 3094 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationName() |
| 3095 | { |
| 3096 | CSSParserValue* value = m_valueList->current(); |
| 3097 | if (value->unit == CSSPrimitiveValue::CSS_STRING || value->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 3098 | if (value->id == CSSValueNone || (value->unit == CSSPrimitiveValue::CSS_STRING && equalIgnoringCase(value, "none"))) { |
| 3099 | return cssValuePool().createIdentifierValue(CSSValueNone); |
| 3100 | } else { |
| 3101 | return createPrimitiveStringValue(value); |
| 3102 | } |
| 3103 | } |
| 3104 | return nullptr; |
| 3105 | } |
| 3106 | |
| 3107 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationPlayState() |
| 3108 | { |
| 3109 | CSSParserValue* value = m_valueList->current(); |
| 3110 | if (value->id == CSSValueRunning || value->id == CSSValuePaused) |
| 3111 | return cssValuePool().createIdentifierValue(value->id); |
| 3112 | return nullptr; |
| 3113 | } |
| 3114 | |
| 3115 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationProperty(AnimationParseContext& context) |
| 3116 | { |
| 3117 | CSSParserValue* value = m_valueList->current(); |
| 3118 | if (value->unit != CSSPrimitiveValue::CSS_IDENT) |
| 3119 | return nullptr; |
| 3120 | CSSPropertyID result = cssPropertyID(value->string); |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3121 | if (result && RuntimeCSSEnabled::isCSSPropertyEnabled(result)) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3122 | return cssValuePool().createIdentifierValue(result); |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 3123 | if (equalIgnoringCase(value, "all")) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3124 | return cssValuePool().createIdentifierValue(CSSValueAll); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3125 | if (equalIgnoringCase(value, "none")) { |
| 3126 | context.commitAnimationPropertyKeyword(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3127 | return cssValuePool().createIdentifierValue(CSSValueNone); |
| 3128 | } |
| 3129 | return nullptr; |
| 3130 | } |
| 3131 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3132 | bool CSSPropertyParser::parseWebkitTransformOriginShorthand(RefPtrWillBeRawPtr<CSSValue>& value1, RefPtrWillBeRawPtr<CSSValue>& value2, RefPtrWillBeRawPtr<CSSValue>& value3) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3133 | { |
| 3134 | parse2ValuesFillPosition(m_valueList.get(), value1, value2); |
| 3135 | |
| 3136 | // now get z |
| 3137 | if (m_valueList->current()) { |
| 3138 | if (validUnit(m_valueList->current(), FLength)) { |
| 3139 | value3 = createPrimitiveNumericValue(m_valueList->current()); |
| 3140 | m_valueList->next(); |
| 3141 | return true; |
| 3142 | } |
| 3143 | return false; |
| 3144 | } |
| 3145 | value3 = cssValuePool().createImplicitInitialValue(); |
| 3146 | return true; |
| 3147 | } |
| 3148 | |
| 3149 | bool CSSPropertyParser::parseCubicBezierTimingFunctionValue(CSSParserValueList*& args, double& result) |
| 3150 | { |
| 3151 | CSSParserValue* v = args->current(); |
| 3152 | if (!validUnit(v, FNumber)) |
| 3153 | return false; |
| 3154 | result = v->fValue; |
| 3155 | v = args->next(); |
| 3156 | if (!v) |
| 3157 | // The last number in the function has no comma after it, so we're done. |
| 3158 | return true; |
| 3159 | if (!isComma(v)) |
| 3160 | return false; |
| 3161 | args->next(); |
| 3162 | return true; |
| 3163 | } |
| 3164 | |
| 3165 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseAnimationTimingFunction() |
| 3166 | { |
| 3167 | CSSParserValue* value = m_valueList->current(); |
| 3168 | if (value->id == CSSValueEase || value->id == CSSValueLinear || value->id == CSSValueEaseIn || value->id == CSSValueEaseOut |
| 3169 | || value->id == CSSValueEaseInOut || value->id == CSSValueStepStart || value->id == CSSValueStepEnd |
Ben Murdoch | 6f543c7 | 2014-04-16 11:17:22 +0100 | [diff] [blame] | 3170 | || (value->id == CSSValueStepMiddle && RuntimeEnabledFeatures::webAnimationsElementAnimateEnabled())) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3171 | return cssValuePool().createIdentifierValue(value->id); |
| 3172 | |
| 3173 | // We must be a function. |
| 3174 | if (value->unit != CSSParserValue::Function) |
| 3175 | return nullptr; |
| 3176 | |
| 3177 | CSSParserValueList* args = value->function->args.get(); |
| 3178 | |
| 3179 | if (equalIgnoringCase(value->function->name, "steps(")) { |
| 3180 | // For steps, 1 or 2 params must be specified (comma-separated) |
| 3181 | if (!args || (args->size() != 1 && args->size() != 3)) |
| 3182 | return nullptr; |
| 3183 | |
| 3184 | // There are two values. |
| 3185 | int numSteps; |
| 3186 | StepsTimingFunction::StepAtPosition stepAtPosition = StepsTimingFunction::StepAtEnd; |
| 3187 | |
| 3188 | CSSParserValue* v = args->current(); |
| 3189 | if (!validUnit(v, FInteger)) |
| 3190 | return nullptr; |
| 3191 | numSteps = clampToInteger(v->fValue); |
| 3192 | if (numSteps < 1) |
| 3193 | return nullptr; |
| 3194 | v = args->next(); |
| 3195 | |
| 3196 | if (v) { |
| 3197 | // There is a comma so we need to parse the second value |
| 3198 | if (!isComma(v)) |
| 3199 | return nullptr; |
| 3200 | v = args->next(); |
| 3201 | switch (v->id) { |
| 3202 | case CSSValueMiddle: |
| 3203 | if (!RuntimeEnabledFeatures::webAnimationsAPIEnabled()) |
| 3204 | return nullptr; |
| 3205 | stepAtPosition = StepsTimingFunction::StepAtMiddle; |
| 3206 | break; |
| 3207 | case CSSValueStart: |
| 3208 | stepAtPosition = StepsTimingFunction::StepAtStart; |
| 3209 | break; |
| 3210 | case CSSValueEnd: |
| 3211 | stepAtPosition = StepsTimingFunction::StepAtEnd; |
| 3212 | break; |
| 3213 | default: |
| 3214 | return nullptr; |
| 3215 | } |
| 3216 | } |
| 3217 | |
| 3218 | return CSSStepsTimingFunctionValue::create(numSteps, stepAtPosition); |
| 3219 | } |
| 3220 | |
| 3221 | if (equalIgnoringCase(value->function->name, "cubic-bezier(")) { |
| 3222 | // For cubic bezier, 4 values must be specified. |
| 3223 | if (!args || args->size() != 7) |
| 3224 | return nullptr; |
| 3225 | |
| 3226 | // There are two points specified. The x values must be between 0 and 1 but the y values can exceed this range. |
| 3227 | double x1, y1, x2, y2; |
| 3228 | |
| 3229 | if (!parseCubicBezierTimingFunctionValue(args, x1)) |
| 3230 | return nullptr; |
| 3231 | if (x1 < 0 || x1 > 1) |
| 3232 | return nullptr; |
| 3233 | if (!parseCubicBezierTimingFunctionValue(args, y1)) |
| 3234 | return nullptr; |
| 3235 | if (!parseCubicBezierTimingFunctionValue(args, x2)) |
| 3236 | return nullptr; |
| 3237 | if (x2 < 0 || x2 > 1) |
| 3238 | return nullptr; |
| 3239 | if (!parseCubicBezierTimingFunctionValue(args, y2)) |
| 3240 | return nullptr; |
| 3241 | |
| 3242 | return CSSCubicBezierTimingFunctionValue::create(x1, y1, x2, y2); |
| 3243 | } |
| 3244 | |
| 3245 | return nullptr; |
| 3246 | } |
| 3247 | |
| 3248 | bool CSSPropertyParser::parseAnimationProperty(CSSPropertyID propId, RefPtrWillBeRawPtr<CSSValue>& result, AnimationParseContext& context) |
| 3249 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3250 | RefPtrWillBeRawPtr<CSSValueList> values = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3251 | CSSParserValue* val; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3252 | RefPtrWillBeRawPtr<CSSValue> value = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3253 | bool allowComma = false; |
| 3254 | |
| 3255 | result = nullptr; |
| 3256 | |
| 3257 | while ((val = m_valueList->current())) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3258 | RefPtrWillBeRawPtr<CSSValue> currValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3259 | if (allowComma) { |
| 3260 | if (!isComma(val)) |
| 3261 | return false; |
| 3262 | m_valueList->next(); |
| 3263 | allowComma = false; |
| 3264 | } |
| 3265 | else { |
| 3266 | switch (propId) { |
| 3267 | case CSSPropertyAnimationDelay: |
| 3268 | case CSSPropertyWebkitAnimationDelay: |
| 3269 | case CSSPropertyTransitionDelay: |
| 3270 | case CSSPropertyWebkitTransitionDelay: |
| 3271 | currValue = parseAnimationDelay(); |
| 3272 | if (currValue) |
| 3273 | m_valueList->next(); |
| 3274 | break; |
| 3275 | case CSSPropertyAnimationDirection: |
| 3276 | case CSSPropertyWebkitAnimationDirection: |
| 3277 | currValue = parseAnimationDirection(); |
| 3278 | if (currValue) |
| 3279 | m_valueList->next(); |
| 3280 | break; |
| 3281 | case CSSPropertyAnimationDuration: |
| 3282 | case CSSPropertyWebkitAnimationDuration: |
| 3283 | case CSSPropertyTransitionDuration: |
| 3284 | case CSSPropertyWebkitTransitionDuration: |
| 3285 | currValue = parseAnimationDuration(); |
| 3286 | if (currValue) |
| 3287 | m_valueList->next(); |
| 3288 | break; |
| 3289 | case CSSPropertyAnimationFillMode: |
| 3290 | case CSSPropertyWebkitAnimationFillMode: |
| 3291 | currValue = parseAnimationFillMode(); |
| 3292 | if (currValue) |
| 3293 | m_valueList->next(); |
| 3294 | break; |
| 3295 | case CSSPropertyAnimationIterationCount: |
| 3296 | case CSSPropertyWebkitAnimationIterationCount: |
| 3297 | currValue = parseAnimationIterationCount(); |
| 3298 | if (currValue) |
| 3299 | m_valueList->next(); |
| 3300 | break; |
| 3301 | case CSSPropertyAnimationName: |
| 3302 | case CSSPropertyWebkitAnimationName: |
| 3303 | currValue = parseAnimationName(); |
| 3304 | if (currValue) |
| 3305 | m_valueList->next(); |
| 3306 | break; |
| 3307 | case CSSPropertyAnimationPlayState: |
| 3308 | case CSSPropertyWebkitAnimationPlayState: |
| 3309 | currValue = parseAnimationPlayState(); |
| 3310 | if (currValue) |
| 3311 | m_valueList->next(); |
| 3312 | break; |
| 3313 | case CSSPropertyTransitionProperty: |
| 3314 | case CSSPropertyWebkitTransitionProperty: |
| 3315 | currValue = parseAnimationProperty(context); |
| 3316 | if (value && !context.animationPropertyKeywordAllowed()) |
| 3317 | return false; |
| 3318 | if (currValue) |
| 3319 | m_valueList->next(); |
| 3320 | break; |
| 3321 | case CSSPropertyAnimationTimingFunction: |
| 3322 | case CSSPropertyWebkitAnimationTimingFunction: |
| 3323 | case CSSPropertyTransitionTimingFunction: |
| 3324 | case CSSPropertyWebkitTransitionTimingFunction: |
| 3325 | currValue = parseAnimationTimingFunction(); |
| 3326 | if (currValue) |
| 3327 | m_valueList->next(); |
| 3328 | break; |
| 3329 | default: |
| 3330 | ASSERT_NOT_REACHED(); |
| 3331 | return false; |
| 3332 | } |
| 3333 | |
| 3334 | if (!currValue) |
| 3335 | return false; |
| 3336 | |
| 3337 | if (value && !values) { |
| 3338 | values = CSSValueList::createCommaSeparated(); |
| 3339 | values->append(value.release()); |
| 3340 | } |
| 3341 | |
| 3342 | if (values) |
| 3343 | values->append(currValue.release()); |
| 3344 | else |
| 3345 | value = currValue.release(); |
| 3346 | |
| 3347 | allowComma = true; |
| 3348 | } |
| 3349 | |
| 3350 | // When parsing the 'transition' shorthand property, we let it handle building up the lists for all |
| 3351 | // properties. |
| 3352 | if (inShorthand()) |
| 3353 | break; |
| 3354 | } |
| 3355 | |
| 3356 | if (values && values->length()) { |
| 3357 | result = values.release(); |
| 3358 | return true; |
| 3359 | } |
| 3360 | if (value) { |
| 3361 | result = value.release(); |
| 3362 | return true; |
| 3363 | } |
| 3364 | return false; |
| 3365 | } |
| 3366 | |
| 3367 | // The function parses [ <integer> || <string> ] in <grid-line> (which can be stand alone or with 'span'). |
| 3368 | bool CSSPropertyParser::parseIntegerOrStringFromGridPosition(RefPtrWillBeRawPtr<CSSPrimitiveValue>& numericValue, RefPtrWillBeRawPtr<CSSPrimitiveValue>& gridLineName) |
| 3369 | { |
| 3370 | CSSParserValue* value = m_valueList->current(); |
| 3371 | if (validUnit(value, FInteger) && value->fValue) { |
| 3372 | numericValue = createPrimitiveNumericValue(value); |
| 3373 | value = m_valueList->next(); |
| 3374 | if (value && value->unit == CSSPrimitiveValue::CSS_STRING) { |
| 3375 | gridLineName = createPrimitiveStringValue(m_valueList->current()); |
| 3376 | m_valueList->next(); |
| 3377 | } |
| 3378 | return true; |
| 3379 | } |
| 3380 | |
| 3381 | if (value->unit == CSSPrimitiveValue::CSS_STRING) { |
| 3382 | gridLineName = createPrimitiveStringValue(m_valueList->current()); |
| 3383 | value = m_valueList->next(); |
| 3384 | if (value && validUnit(value, FInteger) && value->fValue) { |
| 3385 | numericValue = createPrimitiveNumericValue(value); |
| 3386 | m_valueList->next(); |
| 3387 | } |
| 3388 | return true; |
| 3389 | } |
| 3390 | |
| 3391 | return false; |
| 3392 | } |
| 3393 | |
| 3394 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridPosition() |
| 3395 | { |
| 3396 | ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled()); |
| 3397 | |
| 3398 | CSSParserValue* value = m_valueList->current(); |
| 3399 | if (value->id == CSSValueAuto) { |
| 3400 | m_valueList->next(); |
| 3401 | return cssValuePool().createIdentifierValue(CSSValueAuto); |
| 3402 | } |
| 3403 | |
| 3404 | if (value->id != CSSValueSpan && value->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 3405 | m_valueList->next(); |
| 3406 | return cssValuePool().createValue(value->string, CSSPrimitiveValue::CSS_STRING); |
| 3407 | } |
| 3408 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3409 | RefPtrWillBeRawPtr<CSSPrimitiveValue> numericValue = nullptr; |
| 3410 | RefPtrWillBeRawPtr<CSSPrimitiveValue> gridLineName = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3411 | bool hasSeenSpanKeyword = false; |
| 3412 | |
| 3413 | if (parseIntegerOrStringFromGridPosition(numericValue, gridLineName)) { |
| 3414 | value = m_valueList->current(); |
| 3415 | if (value && value->id == CSSValueSpan) { |
| 3416 | hasSeenSpanKeyword = true; |
| 3417 | m_valueList->next(); |
| 3418 | } |
| 3419 | } else if (value->id == CSSValueSpan) { |
| 3420 | hasSeenSpanKeyword = true; |
| 3421 | if (m_valueList->next()) |
| 3422 | parseIntegerOrStringFromGridPosition(numericValue, gridLineName); |
| 3423 | } |
| 3424 | |
| 3425 | // Check that we have consumed all the value list. For shorthands, the parser will pass |
| 3426 | // the whole value list (including the opposite position). |
| 3427 | if (m_valueList->current() && !isForwardSlashOperator(m_valueList->current())) |
| 3428 | return nullptr; |
| 3429 | |
| 3430 | // If we didn't parse anything, this is not a valid grid position. |
| 3431 | if (!hasSeenSpanKeyword && !gridLineName && !numericValue) |
| 3432 | return nullptr; |
| 3433 | |
| 3434 | // Negative numbers are not allowed for span (but are for <integer>). |
| 3435 | if (hasSeenSpanKeyword && numericValue && numericValue->getIntValue() < 0) |
| 3436 | return nullptr; |
| 3437 | |
| 3438 | RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated(); |
| 3439 | if (hasSeenSpanKeyword) |
| 3440 | values->append(cssValuePool().createIdentifierValue(CSSValueSpan)); |
| 3441 | if (numericValue) |
| 3442 | values->append(numericValue.release()); |
| 3443 | if (gridLineName) |
| 3444 | values->append(gridLineName.release()); |
| 3445 | ASSERT(values->length()); |
| 3446 | return values.release(); |
| 3447 | } |
| 3448 | |
| 3449 | static PassRefPtrWillBeRawPtr<CSSValue> gridMissingGridPositionValue(CSSValue* value) |
| 3450 | { |
| 3451 | if (value->isPrimitiveValue() && toCSSPrimitiveValue(value)->isString()) |
| 3452 | return value; |
| 3453 | |
| 3454 | return cssValuePool().createIdentifierValue(CSSValueAuto); |
| 3455 | } |
| 3456 | |
| 3457 | bool CSSPropertyParser::parseGridItemPositionShorthand(CSSPropertyID shorthandId, bool important) |
| 3458 | { |
| 3459 | ShorthandScope scope(this, shorthandId); |
| 3460 | const StylePropertyShorthand& shorthand = shorthandForProperty(shorthandId); |
| 3461 | ASSERT(shorthand.length() == 2); |
| 3462 | |
| 3463 | RefPtrWillBeRawPtr<CSSValue> startValue = parseGridPosition(); |
| 3464 | if (!startValue) |
| 3465 | return false; |
| 3466 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3467 | RefPtrWillBeRawPtr<CSSValue> endValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3468 | if (m_valueList->current()) { |
| 3469 | if (!isForwardSlashOperator(m_valueList->current())) |
| 3470 | return false; |
| 3471 | |
| 3472 | if (!m_valueList->next()) |
| 3473 | return false; |
| 3474 | |
| 3475 | endValue = parseGridPosition(); |
| 3476 | if (!endValue || m_valueList->current()) |
| 3477 | return false; |
| 3478 | } else { |
| 3479 | endValue = gridMissingGridPositionValue(startValue.get()); |
| 3480 | } |
| 3481 | |
| 3482 | addProperty(shorthand.properties()[0], startValue, important); |
| 3483 | addProperty(shorthand.properties()[1], endValue, important); |
| 3484 | return true; |
| 3485 | } |
| 3486 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3487 | bool CSSPropertyParser::parseGridTemplateRowsAndAreas(PassRefPtrWillBeRawPtr<CSSValue> templateColumns, bool important) |
| 3488 | { |
| 3489 | NamedGridAreaMap gridAreaMap; |
| 3490 | size_t rowCount = 0; |
| 3491 | size_t columnCount = 0; |
| 3492 | bool trailingIdentWasAdded = false; |
| 3493 | RefPtrWillBeRawPtr<CSSValueList> templateRows = CSSValueList::createSpaceSeparated(); |
| 3494 | |
| 3495 | // At least template-areas strings must be defined. |
| 3496 | if (!m_valueList->current()) |
| 3497 | return false; |
| 3498 | |
| 3499 | while (m_valueList->current()) { |
| 3500 | // Handle leading <custom-ident>*. |
| 3501 | if (m_valueList->current()->unit == CSSParserValue::ValueList) { |
| 3502 | if (trailingIdentWasAdded) { |
| 3503 | // A row's trailing ident must be concatenated with the next row's leading one. |
| 3504 | parseGridLineNames(*m_valueList, *templateRows, static_cast<CSSGridLineNamesValue*>(templateRows->item(templateRows->length() - 1))); |
| 3505 | } else { |
| 3506 | parseGridLineNames(*m_valueList, *templateRows); |
| 3507 | } |
| 3508 | } |
| 3509 | |
| 3510 | // Handle a template-area's row. |
| 3511 | if (!parseGridTemplateAreasRow(gridAreaMap, rowCount, columnCount)) |
| 3512 | return false; |
| 3513 | ++rowCount; |
| 3514 | |
| 3515 | // Handle template-rows's track-size. |
| 3516 | if (m_valueList->current() && m_valueList->current()->unit != CSSParserValue::ValueList && m_valueList->current()->unit != CSSPrimitiveValue::CSS_STRING) { |
| 3517 | RefPtrWillBeRawPtr<CSSValue> value = parseGridTrackSize(*m_valueList); |
| 3518 | if (!value) |
| 3519 | return false; |
| 3520 | templateRows->append(value); |
| 3521 | } else { |
| 3522 | templateRows->append(cssValuePool().createIdentifierValue(CSSValueAuto)); |
| 3523 | } |
| 3524 | |
| 3525 | // This will handle the trailing/leading <custom-ident>* in the grammar. |
| 3526 | trailingIdentWasAdded = false; |
| 3527 | if (m_valueList->current() && m_valueList->current()->unit == CSSParserValue::ValueList) { |
| 3528 | parseGridLineNames(*m_valueList, *templateRows); |
| 3529 | trailingIdentWasAdded = true; |
| 3530 | } |
| 3531 | } |
| 3532 | |
| 3533 | // [<track-list> /]? |
| 3534 | if (templateColumns) |
| 3535 | addProperty(CSSPropertyGridTemplateColumns, templateColumns, important); |
| 3536 | else |
| 3537 | addProperty(CSSPropertyGridTemplateColumns, cssValuePool().createIdentifierValue(CSSValueNone), important); |
| 3538 | |
| 3539 | // [<line-names>? <string> [<track-size> <line-names>]? ]+ |
| 3540 | RefPtrWillBeRawPtr<CSSValue> templateAreas = CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount); |
| 3541 | addProperty(CSSPropertyGridTemplateAreas, templateAreas.release(), important); |
| 3542 | addProperty(CSSPropertyGridTemplateRows, templateRows.release(), important); |
| 3543 | |
| 3544 | |
| 3545 | return true; |
| 3546 | } |
| 3547 | |
| 3548 | |
| 3549 | bool CSSPropertyParser::parseGridTemplateShorthand(bool important) |
| 3550 | { |
| 3551 | ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled()); |
| 3552 | |
| 3553 | ShorthandScope scope(this, CSSPropertyGridTemplate); |
| 3554 | ASSERT(gridTemplateShorthand().length() == 3); |
| 3555 | |
| 3556 | // At least "none" must be defined. |
| 3557 | if (!m_valueList->current()) |
| 3558 | return false; |
| 3559 | |
| 3560 | bool firstValueIsNone = m_valueList->current()->id == CSSValueNone; |
| 3561 | |
| 3562 | // 1- 'none' case. |
| 3563 | if (firstValueIsNone && !m_valueList->next()) { |
| 3564 | addProperty(CSSPropertyGridTemplateColumns, cssValuePool().createIdentifierValue(CSSValueNone), important); |
| 3565 | addProperty(CSSPropertyGridTemplateRows, cssValuePool().createIdentifierValue(CSSValueNone), important); |
| 3566 | addProperty(CSSPropertyGridTemplateAreas, cssValuePool().createIdentifierValue(CSSValueNone), important); |
| 3567 | return true; |
| 3568 | } |
| 3569 | |
| 3570 | unsigned index = 0; |
| 3571 | RefPtrWillBeRawPtr<CSSValue> columnsValue = nullptr; |
| 3572 | if (firstValueIsNone) { |
| 3573 | columnsValue = cssValuePool().createIdentifierValue(CSSValueNone); |
| 3574 | } else { |
| 3575 | columnsValue = parseGridTrackList(important); |
| 3576 | } |
| 3577 | |
| 3578 | // 2- <grid-template-columns> / <grid-template-columns> syntax. |
| 3579 | if (columnsValue) { |
| 3580 | if (!(m_valueList->current() && isForwardSlashOperator(m_valueList->current()) && m_valueList->next())) |
| 3581 | return false; |
| 3582 | index = m_valueList->currentIndex(); |
| 3583 | if (RefPtrWillBeRawPtr<CSSValue> rowsValue = parseGridTrackList(important)) { |
| 3584 | if (m_valueList->current()) |
| 3585 | return false; |
| 3586 | addProperty(CSSPropertyGridTemplateColumns, columnsValue, important); |
| 3587 | addProperty(CSSPropertyGridTemplateRows, rowsValue, important); |
| 3588 | addProperty(CSSPropertyGridTemplateAreas, cssValuePool().createIdentifierValue(CSSValueNone), important); |
| 3589 | return true; |
| 3590 | } |
| 3591 | } |
| 3592 | |
| 3593 | |
| 3594 | // 3- [<track-list> /]? [<line-names>? <string> [<track-size> <line-names>]? ]+ syntax. |
| 3595 | // The template-columns <track-list> can't be 'none'. |
| 3596 | if (firstValueIsNone) |
| 3597 | return false; |
| 3598 | // It requires to rewind parsing due to previous syntax failures. |
| 3599 | m_valueList->setCurrentIndex(index); |
| 3600 | return parseGridTemplateRowsAndAreas(columnsValue, important); |
| 3601 | } |
| 3602 | |
Ben Murdoch | a9984bf | 2014-04-10 11:22:39 +0100 | [diff] [blame] | 3603 | bool CSSPropertyParser::parseGridShorthand(bool important) |
| 3604 | { |
| 3605 | ShorthandScope scope(this, CSSPropertyGrid); |
| 3606 | ASSERT(shorthandForProperty(CSSPropertyGrid).length() == 4); |
| 3607 | |
| 3608 | // 1- <grid-template> |
| 3609 | if (parseGridTemplateShorthand(important)) { |
| 3610 | // It can only be specified the explicit or the implicit grid properties in a single grid declaration. |
| 3611 | // The sub-properties not specified are set to their initial value, as normal for shorthands. |
| 3612 | addProperty(CSSPropertyGridAutoFlow, cssValuePool().createImplicitInitialValue(), important); |
| 3613 | addProperty(CSSPropertyGridAutoColumns, cssValuePool().createImplicitInitialValue(), important); |
| 3614 | addProperty(CSSPropertyGridAutoRows, cssValuePool().createImplicitInitialValue(), important); |
| 3615 | return true; |
| 3616 | } |
| 3617 | |
| 3618 | // Need to rewind parsing to explore the alternative syntax of this shorthand. |
| 3619 | m_valueList->setCurrentIndex(0); |
| 3620 | |
| 3621 | // 2- <grid-auto-flow> [ <grid-auto-columns> [ / <grid-auto-rows> ]? ] |
| 3622 | CSSValueID id = m_valueList->current()->id; |
| 3623 | if (id != CSSValueRow && id != CSSValueColumn && id != CSSValueNone) |
| 3624 | return false; |
| 3625 | |
| 3626 | RefPtrWillBeRawPtr<CSSValue> autoFlowValue = cssValuePool().createIdentifierValue(id); |
| 3627 | RefPtrWillBeRawPtr<CSSValue> autoColumnsValue = nullptr; |
| 3628 | RefPtrWillBeRawPtr<CSSValue> autoRowsValue = nullptr; |
| 3629 | |
| 3630 | if (m_valueList->next()) { |
| 3631 | autoColumnsValue = parseGridTrackSize(*m_valueList); |
| 3632 | if (!autoColumnsValue) |
| 3633 | return false; |
| 3634 | if (m_valueList->current()) { |
| 3635 | if (!isForwardSlashOperator(m_valueList->current()) || !m_valueList->next()) |
| 3636 | return false; |
| 3637 | autoRowsValue = parseGridTrackSize(*m_valueList); |
| 3638 | if (!autoRowsValue) |
| 3639 | return false; |
| 3640 | } |
| 3641 | if (m_valueList->current()) |
| 3642 | return false; |
| 3643 | } else { |
| 3644 | // Other omitted values are set to their initial values. |
| 3645 | autoColumnsValue = cssValuePool().createImplicitInitialValue(); |
| 3646 | autoRowsValue = cssValuePool().createImplicitInitialValue(); |
| 3647 | } |
| 3648 | |
| 3649 | // if <grid-auto-rows> value is omitted, it is set to the value specified for grid-auto-columns. |
| 3650 | if (!autoRowsValue) |
| 3651 | autoRowsValue = autoColumnsValue; |
| 3652 | |
| 3653 | addProperty(CSSPropertyGridAutoFlow, autoFlowValue, important); |
| 3654 | addProperty(CSSPropertyGridAutoColumns, autoColumnsValue, important); |
| 3655 | addProperty(CSSPropertyGridAutoRows, autoRowsValue, important); |
| 3656 | |
| 3657 | // It can only be specified the explicit or the implicit grid properties in a single grid declaration. |
| 3658 | // The sub-properties not specified are set to their initial value, as normal for shorthands. |
| 3659 | addProperty(CSSPropertyGridTemplateColumns, cssValuePool().createImplicitInitialValue(), important); |
| 3660 | addProperty(CSSPropertyGridTemplateRows, cssValuePool().createImplicitInitialValue(), important); |
| 3661 | addProperty(CSSPropertyGridTemplateAreas, cssValuePool().createImplicitInitialValue(), important); |
| 3662 | |
| 3663 | return true; |
| 3664 | } |
| 3665 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3666 | bool CSSPropertyParser::parseGridAreaShorthand(bool important) |
| 3667 | { |
| 3668 | ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled()); |
| 3669 | |
| 3670 | ShorthandScope scope(this, CSSPropertyGridArea); |
| 3671 | const StylePropertyShorthand& shorthand = gridAreaShorthand(); |
| 3672 | ASSERT_UNUSED(shorthand, shorthand.length() == 4); |
| 3673 | |
| 3674 | RefPtrWillBeRawPtr<CSSValue> rowStartValue = parseGridPosition(); |
| 3675 | if (!rowStartValue) |
| 3676 | return false; |
| 3677 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3678 | RefPtrWillBeRawPtr<CSSValue> columnStartValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3679 | if (!parseSingleGridAreaLonghand(columnStartValue)) |
| 3680 | return false; |
| 3681 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3682 | RefPtrWillBeRawPtr<CSSValue> rowEndValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3683 | if (!parseSingleGridAreaLonghand(rowEndValue)) |
| 3684 | return false; |
| 3685 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3686 | RefPtrWillBeRawPtr<CSSValue> columnEndValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3687 | if (!parseSingleGridAreaLonghand(columnEndValue)) |
| 3688 | return false; |
| 3689 | |
| 3690 | if (!columnStartValue) |
| 3691 | columnStartValue = gridMissingGridPositionValue(rowStartValue.get()); |
| 3692 | |
| 3693 | if (!rowEndValue) |
| 3694 | rowEndValue = gridMissingGridPositionValue(rowStartValue.get()); |
| 3695 | |
| 3696 | if (!columnEndValue) |
| 3697 | columnEndValue = gridMissingGridPositionValue(columnStartValue.get()); |
| 3698 | |
| 3699 | addProperty(CSSPropertyGridRowStart, rowStartValue, important); |
| 3700 | addProperty(CSSPropertyGridColumnStart, columnStartValue, important); |
| 3701 | addProperty(CSSPropertyGridRowEnd, rowEndValue, important); |
| 3702 | addProperty(CSSPropertyGridColumnEnd, columnEndValue, important); |
| 3703 | return true; |
| 3704 | } |
| 3705 | |
| 3706 | bool CSSPropertyParser::parseSingleGridAreaLonghand(RefPtrWillBeRawPtr<CSSValue>& property) |
| 3707 | { |
| 3708 | if (!m_valueList->current()) |
| 3709 | return true; |
| 3710 | |
| 3711 | if (!isForwardSlashOperator(m_valueList->current())) |
| 3712 | return false; |
| 3713 | |
| 3714 | if (!m_valueList->next()) |
| 3715 | return false; |
| 3716 | |
| 3717 | property = parseGridPosition(); |
| 3718 | return true; |
| 3719 | } |
| 3720 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3721 | void CSSPropertyParser::parseGridLineNames(CSSParserValueList& inputList, CSSValueList& valueList, CSSGridLineNamesValue* previousNamedAreaTrailingLineNames) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3722 | { |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3723 | ASSERT(inputList.current() && inputList.current()->unit == CSSParserValue::ValueList); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3724 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3725 | CSSParserValueList* identList = inputList.current()->valueList; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3726 | if (!identList->size()) { |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3727 | inputList.next(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3728 | return; |
| 3729 | } |
| 3730 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3731 | // Need to ensure the identList is at the heading index, since the parserList might have been rewound. |
| 3732 | identList->setCurrentIndex(0); |
| 3733 | |
| 3734 | RefPtrWillBeRawPtr<CSSGridLineNamesValue> lineNames = previousNamedAreaTrailingLineNames; |
| 3735 | if (!lineNames) |
| 3736 | lineNames = CSSGridLineNamesValue::create(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3737 | while (CSSParserValue* identValue = identList->current()) { |
| 3738 | ASSERT(identValue->unit == CSSPrimitiveValue::CSS_IDENT); |
| 3739 | RefPtrWillBeRawPtr<CSSPrimitiveValue> lineName = createPrimitiveStringValue(identValue); |
| 3740 | lineNames->append(lineName.release()); |
| 3741 | identList->next(); |
| 3742 | } |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3743 | if (!previousNamedAreaTrailingLineNames) |
| 3744 | valueList.append(lineNames.release()); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3745 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3746 | inputList.next(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3747 | } |
| 3748 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3749 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridTrackList(bool important) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3750 | { |
| 3751 | ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled()); |
| 3752 | |
| 3753 | CSSParserValue* value = m_valueList->current(); |
| 3754 | if (value->id == CSSValueNone) { |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3755 | m_valueList->next(); |
| 3756 | return cssValuePool().createIdentifierValue(CSSValueNone); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3757 | } |
| 3758 | |
| 3759 | RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createSpaceSeparated(); |
| 3760 | // Handle leading <ident>*. |
| 3761 | value = m_valueList->current(); |
| 3762 | if (value && value->unit == CSSParserValue::ValueList) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3763 | parseGridLineNames(*m_valueList, *values); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3764 | |
| 3765 | bool seenTrackSizeOrRepeatFunction = false; |
| 3766 | while (CSSParserValue* currentValue = m_valueList->current()) { |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3767 | if (isForwardSlashOperator(currentValue)) |
| 3768 | break; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3769 | if (currentValue->unit == CSSParserValue::Function && equalIgnoringCase(currentValue->function->name, "repeat(")) { |
| 3770 | if (!parseGridTrackRepeatFunction(*values)) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3771 | return nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3772 | seenTrackSizeOrRepeatFunction = true; |
| 3773 | } else { |
| 3774 | RefPtrWillBeRawPtr<CSSValue> value = parseGridTrackSize(*m_valueList); |
| 3775 | if (!value) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3776 | return nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3777 | values->append(value); |
| 3778 | seenTrackSizeOrRepeatFunction = true; |
| 3779 | } |
| 3780 | // This will handle the trailing <ident>* in the grammar. |
| 3781 | value = m_valueList->current(); |
| 3782 | if (value && value->unit == CSSParserValue::ValueList) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3783 | parseGridLineNames(*m_valueList, *values); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3784 | } |
| 3785 | |
| 3786 | // We should have found a <track-size> or else it is not a valid <track-list> |
| 3787 | if (!seenTrackSizeOrRepeatFunction) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3788 | return nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3789 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3790 | return values; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3791 | } |
| 3792 | |
| 3793 | bool CSSPropertyParser::parseGridTrackRepeatFunction(CSSValueList& list) |
| 3794 | { |
| 3795 | CSSParserValueList* arguments = m_valueList->current()->function->args.get(); |
| 3796 | if (!arguments || arguments->size() < 3 || !validUnit(arguments->valueAt(0), FPositiveInteger) || !isComma(arguments->valueAt(1))) |
| 3797 | return false; |
| 3798 | |
| 3799 | ASSERT_WITH_SECURITY_IMPLICATION(arguments->valueAt(0)->fValue > 0); |
| 3800 | size_t repetitions = arguments->valueAt(0)->fValue; |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 3801 | // Clamp repetitions at minRepetitions. |
| 3802 | // http://www.w3.org/TR/css-grid-1/#repeat-notation |
| 3803 | if (repetitions > minRepetitions) |
| 3804 | repetitions = minRepetitions; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3805 | RefPtrWillBeRawPtr<CSSValueList> repeatedValues = CSSValueList::createSpaceSeparated(); |
| 3806 | arguments->next(); // Skip the repetition count. |
| 3807 | arguments->next(); // Skip the comma. |
| 3808 | |
| 3809 | // Handle leading <ident>*. |
| 3810 | CSSParserValue* currentValue = arguments->current(); |
| 3811 | if (currentValue && currentValue->unit == CSSParserValue::ValueList) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3812 | parseGridLineNames(*arguments, *repeatedValues); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3813 | |
| 3814 | while (arguments->current()) { |
| 3815 | RefPtrWillBeRawPtr<CSSValue> trackSize = parseGridTrackSize(*arguments); |
| 3816 | if (!trackSize) |
| 3817 | return false; |
| 3818 | |
| 3819 | repeatedValues->append(trackSize); |
| 3820 | |
| 3821 | // This takes care of any trailing <ident>* in the grammar. |
| 3822 | currentValue = arguments->current(); |
| 3823 | if (currentValue && currentValue->unit == CSSParserValue::ValueList) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3824 | parseGridLineNames(*arguments, *repeatedValues); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3825 | } |
| 3826 | |
| 3827 | for (size_t i = 0; i < repetitions; ++i) { |
| 3828 | for (size_t j = 0; j < repeatedValues->length(); ++j) |
| 3829 | list.append(repeatedValues->itemWithoutBoundsCheck(j)); |
| 3830 | } |
| 3831 | |
| 3832 | // parseGridTrackSize iterated over the repeat arguments, move to the next value. |
| 3833 | m_valueList->next(); |
| 3834 | return true; |
| 3835 | } |
| 3836 | |
| 3837 | |
| 3838 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridTrackSize(CSSParserValueList& inputList) |
| 3839 | { |
| 3840 | ASSERT(RuntimeEnabledFeatures::cssGridLayoutEnabled()); |
| 3841 | |
| 3842 | CSSParserValue* currentValue = inputList.current(); |
| 3843 | inputList.next(); |
| 3844 | |
| 3845 | if (currentValue->id == CSSValueAuto) |
| 3846 | return cssValuePool().createIdentifierValue(CSSValueAuto); |
| 3847 | |
| 3848 | if (currentValue->unit == CSSParserValue::Function && equalIgnoringCase(currentValue->function->name, "minmax(")) { |
| 3849 | // The spec defines the following grammar: minmax( <track-breadth> , <track-breadth> ) |
| 3850 | CSSParserValueList* arguments = currentValue->function->args.get(); |
| 3851 | if (!arguments || arguments->size() != 3 || !isComma(arguments->valueAt(1))) |
| 3852 | return nullptr; |
| 3853 | |
| 3854 | RefPtrWillBeRawPtr<CSSPrimitiveValue> minTrackBreadth = parseGridBreadth(arguments->valueAt(0)); |
| 3855 | if (!minTrackBreadth) |
| 3856 | return nullptr; |
| 3857 | |
| 3858 | RefPtrWillBeRawPtr<CSSPrimitiveValue> maxTrackBreadth = parseGridBreadth(arguments->valueAt(2)); |
| 3859 | if (!maxTrackBreadth) |
| 3860 | return nullptr; |
| 3861 | |
| 3862 | RefPtrWillBeRawPtr<CSSValueList> parsedArguments = CSSValueList::createCommaSeparated(); |
| 3863 | parsedArguments->append(minTrackBreadth); |
| 3864 | parsedArguments->append(maxTrackBreadth); |
| 3865 | return CSSFunctionValue::create("minmax(", parsedArguments); |
| 3866 | } |
| 3867 | |
| 3868 | return parseGridBreadth(currentValue); |
| 3869 | } |
| 3870 | |
| 3871 | PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseGridBreadth(CSSParserValue* currentValue) |
| 3872 | { |
| 3873 | if (currentValue->id == CSSValueMinContent || currentValue->id == CSSValueMaxContent) |
| 3874 | return cssValuePool().createIdentifierValue(currentValue->id); |
| 3875 | |
| 3876 | if (currentValue->unit == CSSPrimitiveValue::CSS_FR) { |
| 3877 | double flexValue = currentValue->fValue; |
| 3878 | |
| 3879 | // Fractional unit is a non-negative dimension. |
| 3880 | if (flexValue <= 0) |
| 3881 | return nullptr; |
| 3882 | |
| 3883 | return cssValuePool().createValue(flexValue, CSSPrimitiveValue::CSS_FR); |
| 3884 | } |
| 3885 | |
| 3886 | if (!validUnit(currentValue, FNonNeg | FLength | FPercent)) |
| 3887 | return nullptr; |
| 3888 | |
| 3889 | return createPrimitiveNumericValue(currentValue); |
| 3890 | } |
| 3891 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3892 | bool CSSPropertyParser::parseGridTemplateAreasRow(NamedGridAreaMap& gridAreaMap, const size_t rowCount, size_t& columnCount) |
| 3893 | { |
| 3894 | CSSParserValue* currentValue = m_valueList->current(); |
| 3895 | if (!currentValue || currentValue->unit != CSSPrimitiveValue::CSS_STRING) |
| 3896 | return false; |
| 3897 | |
| 3898 | String gridRowNames = currentValue->string; |
| 3899 | if (!gridRowNames.length()) |
| 3900 | return false; |
| 3901 | |
| 3902 | Vector<String> columnNames; |
| 3903 | gridRowNames.split(' ', columnNames); |
| 3904 | |
| 3905 | if (!columnCount) { |
| 3906 | columnCount = columnNames.size(); |
| 3907 | ASSERT(columnCount); |
| 3908 | } else if (columnCount != columnNames.size()) { |
| 3909 | // The declaration is invalid is all the rows don't have the number of columns. |
| 3910 | return false; |
| 3911 | } |
| 3912 | |
| 3913 | for (size_t currentCol = 0; currentCol < columnCount; ++currentCol) { |
| 3914 | const String& gridAreaName = columnNames[currentCol]; |
| 3915 | |
| 3916 | // Unamed areas are always valid (we consider them to be 1x1). |
| 3917 | if (gridAreaName == ".") |
| 3918 | continue; |
| 3919 | |
| 3920 | // We handle several grid areas with the same name at once to simplify the validation code. |
| 3921 | size_t lookAheadCol; |
| 3922 | for (lookAheadCol = currentCol; lookAheadCol < (columnCount - 1); ++lookAheadCol) { |
| 3923 | if (columnNames[lookAheadCol + 1] != gridAreaName) |
| 3924 | break; |
| 3925 | } |
| 3926 | |
| 3927 | NamedGridAreaMap::iterator gridAreaIt = gridAreaMap.find(gridAreaName); |
| 3928 | if (gridAreaIt == gridAreaMap.end()) { |
| 3929 | gridAreaMap.add(gridAreaName, GridCoordinate(GridSpan(rowCount, rowCount), GridSpan(currentCol, lookAheadCol))); |
| 3930 | } else { |
| 3931 | GridCoordinate& gridCoordinate = gridAreaIt->value; |
| 3932 | |
| 3933 | // The following checks test that the grid area is a single filled-in rectangle. |
| 3934 | // 1. The new row is adjacent to the previously parsed row. |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 3935 | if (rowCount != gridCoordinate.rows.resolvedFinalPosition.next().toInt()) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3936 | return false; |
| 3937 | |
| 3938 | // 2. The new area starts at the same position as the previously parsed area. |
Ben Murdoch | a9984bf | 2014-04-10 11:22:39 +0100 | [diff] [blame] | 3939 | if (currentCol != gridCoordinate.columns.resolvedInitialPosition.toInt()) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3940 | return false; |
| 3941 | |
| 3942 | // 3. The new area ends at the same position as the previously parsed area. |
Ben Murdoch | a9984bf | 2014-04-10 11:22:39 +0100 | [diff] [blame] | 3943 | if (lookAheadCol != gridCoordinate.columns.resolvedFinalPosition.toInt()) |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3944 | return false; |
| 3945 | |
Ben Murdoch | a9984bf | 2014-04-10 11:22:39 +0100 | [diff] [blame] | 3946 | ++gridCoordinate.rows.resolvedFinalPosition; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3947 | } |
| 3948 | currentCol = lookAheadCol; |
| 3949 | } |
| 3950 | |
| 3951 | m_valueList->next(); |
| 3952 | return true; |
| 3953 | } |
| 3954 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3955 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseGridTemplateAreas() |
| 3956 | { |
| 3957 | NamedGridAreaMap gridAreaMap; |
| 3958 | size_t rowCount = 0; |
| 3959 | size_t columnCount = 0; |
| 3960 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 3961 | while (m_valueList->current()) { |
| 3962 | if (!parseGridTemplateAreasRow(gridAreaMap, rowCount, columnCount)) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3963 | return nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3964 | ++rowCount; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3965 | } |
| 3966 | |
| 3967 | if (!rowCount || !columnCount) |
| 3968 | return nullptr; |
| 3969 | |
| 3970 | return CSSGridTemplateAreasValue::create(gridAreaMap, rowCount, columnCount); |
| 3971 | } |
| 3972 | |
| 3973 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseCounterContent(CSSParserValueList* args, bool counters) |
| 3974 | { |
| 3975 | unsigned numArgs = args->size(); |
| 3976 | if (counters && numArgs != 3 && numArgs != 5) |
| 3977 | return nullptr; |
| 3978 | if (!counters && numArgs != 1 && numArgs != 3) |
| 3979 | return nullptr; |
| 3980 | |
| 3981 | CSSParserValue* i = args->current(); |
| 3982 | if (i->unit != CSSPrimitiveValue::CSS_IDENT) |
| 3983 | return nullptr; |
| 3984 | RefPtrWillBeRawPtr<CSSPrimitiveValue> identifier = createPrimitiveStringValue(i); |
| 3985 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 3986 | RefPtrWillBeRawPtr<CSSPrimitiveValue> separator = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 3987 | if (!counters) |
| 3988 | separator = cssValuePool().createValue(String(), CSSPrimitiveValue::CSS_STRING); |
| 3989 | else { |
| 3990 | i = args->next(); |
| 3991 | if (i->unit != CSSParserValue::Operator || i->iValue != ',') |
| 3992 | return nullptr; |
| 3993 | |
| 3994 | i = args->next(); |
| 3995 | if (i->unit != CSSPrimitiveValue::CSS_STRING) |
| 3996 | return nullptr; |
| 3997 | |
| 3998 | separator = createPrimitiveStringValue(i); |
| 3999 | } |
| 4000 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4001 | RefPtrWillBeRawPtr<CSSPrimitiveValue> listStyle = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4002 | i = args->next(); |
| 4003 | if (!i) // Make the list style default decimal |
| 4004 | listStyle = cssValuePool().createIdentifierValue(CSSValueDecimal); |
| 4005 | else { |
| 4006 | if (i->unit != CSSParserValue::Operator || i->iValue != ',') |
| 4007 | return nullptr; |
| 4008 | |
| 4009 | i = args->next(); |
| 4010 | if (i->unit != CSSPrimitiveValue::CSS_IDENT) |
| 4011 | return nullptr; |
| 4012 | |
| 4013 | CSSValueID listStyleID = CSSValueInvalid; |
| 4014 | if (i->id == CSSValueNone || (i->id >= CSSValueDisc && i->id <= CSSValueKatakanaIroha)) |
| 4015 | listStyleID = i->id; |
| 4016 | else |
| 4017 | return nullptr; |
| 4018 | |
| 4019 | listStyle = cssValuePool().createIdentifierValue(listStyleID); |
| 4020 | } |
| 4021 | |
| 4022 | return cssValuePool().createValue(Counter::create(identifier.release(), listStyle.release(), separator.release())); |
| 4023 | } |
| 4024 | |
| 4025 | bool CSSPropertyParser::parseClipShape(CSSPropertyID propId, bool important) |
| 4026 | { |
| 4027 | CSSParserValue* value = m_valueList->current(); |
| 4028 | CSSParserValueList* args = value->function->args.get(); |
| 4029 | |
| 4030 | if (!equalIgnoringCase(value->function->name, "rect(") || !args) |
| 4031 | return false; |
| 4032 | |
| 4033 | // rect(t, r, b, l) || rect(t r b l) |
| 4034 | if (args->size() != 4 && args->size() != 7) |
| 4035 | return false; |
| 4036 | RefPtrWillBeRawPtr<Rect> rect = Rect::create(); |
| 4037 | bool valid = true; |
| 4038 | int i = 0; |
| 4039 | CSSParserValue* a = args->current(); |
| 4040 | while (a) { |
| 4041 | valid = a->id == CSSValueAuto || validUnit(a, FLength); |
| 4042 | if (!valid) |
| 4043 | break; |
| 4044 | RefPtrWillBeRawPtr<CSSPrimitiveValue> length = a->id == CSSValueAuto ? |
| 4045 | cssValuePool().createIdentifierValue(CSSValueAuto) : |
| 4046 | createPrimitiveNumericValue(a); |
| 4047 | if (i == 0) |
| 4048 | rect->setTop(length); |
| 4049 | else if (i == 1) |
| 4050 | rect->setRight(length); |
| 4051 | else if (i == 2) |
| 4052 | rect->setBottom(length); |
| 4053 | else |
| 4054 | rect->setLeft(length); |
| 4055 | a = args->next(); |
| 4056 | if (a && args->size() == 7) { |
| 4057 | if (a->unit == CSSParserValue::Operator && a->iValue == ',') { |
| 4058 | a = args->next(); |
| 4059 | } else { |
| 4060 | valid = false; |
| 4061 | break; |
| 4062 | } |
| 4063 | } |
| 4064 | i++; |
| 4065 | } |
| 4066 | if (valid) { |
| 4067 | addProperty(propId, cssValuePool().createValue(rect.release()), important); |
| 4068 | m_valueList->next(); |
| 4069 | return true; |
| 4070 | } |
| 4071 | return false; |
| 4072 | } |
| 4073 | |
| 4074 | static void completeBorderRadii(RefPtrWillBeRawPtr<CSSPrimitiveValue> radii[4]) |
| 4075 | { |
| 4076 | if (radii[3]) |
| 4077 | return; |
| 4078 | if (!radii[2]) { |
| 4079 | if (!radii[1]) |
| 4080 | radii[1] = radii[0]; |
| 4081 | radii[2] = radii[0]; |
| 4082 | } |
| 4083 | radii[3] = radii[1]; |
| 4084 | } |
| 4085 | |
| 4086 | // FIXME: This should be refactored with CSSParser::parseBorderRadius. |
| 4087 | // CSSParser::parseBorderRadius contains support for some legacy radius construction. |
| 4088 | PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseInsetRoundedCorners(PassRefPtrWillBeRawPtr<CSSBasicShapeInset> shape, CSSParserValueList* args) |
| 4089 | { |
| 4090 | CSSParserValue* argument = args->next(); |
| 4091 | |
| 4092 | if (!argument) |
| 4093 | return nullptr; |
| 4094 | |
Ben Murdoch | a9984bf | 2014-04-10 11:22:39 +0100 | [diff] [blame] | 4095 | Vector<CSSParserValue*> radiusArguments; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4096 | while (argument) { |
Ben Murdoch | a9984bf | 2014-04-10 11:22:39 +0100 | [diff] [blame] | 4097 | radiusArguments.append(argument); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4098 | argument = args->next(); |
| 4099 | } |
| 4100 | |
| 4101 | unsigned num = radiusArguments.size(); |
| 4102 | if (!num || num > 9) |
| 4103 | return nullptr; |
| 4104 | |
| 4105 | // FIXME: Refactor completeBorderRadii and the array |
| 4106 | RefPtrWillBeRawPtr<CSSPrimitiveValue> radii[2][4]; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4107 | #if ENABLE(OILPAN) |
| 4108 | // Zero initialize the array of raw pointers. |
| 4109 | memset(&radii, 0, sizeof(radii)); |
| 4110 | #endif |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4111 | |
| 4112 | unsigned indexAfterSlash = 0; |
| 4113 | for (unsigned i = 0; i < num; ++i) { |
Ben Murdoch | a9984bf | 2014-04-10 11:22:39 +0100 | [diff] [blame] | 4114 | CSSParserValue* value = radiusArguments.at(i); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4115 | if (value->unit == CSSParserValue::Operator) { |
| 4116 | if (value->iValue != '/') |
| 4117 | return nullptr; |
| 4118 | |
| 4119 | if (!i || indexAfterSlash || i + 1 == num) |
| 4120 | return nullptr; |
| 4121 | |
| 4122 | indexAfterSlash = i + 1; |
| 4123 | completeBorderRadii(radii[0]); |
| 4124 | continue; |
| 4125 | } |
| 4126 | |
| 4127 | if (i - indexAfterSlash >= 4) |
| 4128 | return nullptr; |
| 4129 | |
| 4130 | if (!validUnit(value, FLength | FPercent | FNonNeg)) |
| 4131 | return nullptr; |
| 4132 | |
| 4133 | RefPtrWillBeRawPtr<CSSPrimitiveValue> radius = createPrimitiveNumericValue(value); |
| 4134 | |
| 4135 | if (!indexAfterSlash) |
| 4136 | radii[0][i] = radius; |
| 4137 | else |
| 4138 | radii[1][i - indexAfterSlash] = radius.release(); |
| 4139 | } |
| 4140 | |
| 4141 | if (!indexAfterSlash) { |
| 4142 | completeBorderRadii(radii[0]); |
| 4143 | for (unsigned i = 0; i < 4; ++i) |
| 4144 | radii[1][i] = radii[0][i]; |
| 4145 | } else { |
| 4146 | completeBorderRadii(radii[1]); |
| 4147 | } |
| 4148 | shape->setTopLeftRadius(createPrimitiveValuePair(radii[0][0].release(), radii[1][0].release())); |
| 4149 | shape->setTopRightRadius(createPrimitiveValuePair(radii[0][1].release(), radii[1][1].release())); |
| 4150 | shape->setBottomRightRadius(createPrimitiveValuePair(radii[0][2].release(), radii[1][2].release())); |
| 4151 | shape->setBottomLeftRadius(createPrimitiveValuePair(radii[0][3].release(), radii[1][3].release())); |
| 4152 | |
| 4153 | return shape; |
| 4154 | } |
| 4155 | |
| 4156 | PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapeInset(CSSParserValueList* args) |
| 4157 | { |
| 4158 | ASSERT(args); |
| 4159 | |
| 4160 | RefPtrWillBeRawPtr<CSSBasicShapeInset> shape = CSSBasicShapeInset::create(); |
| 4161 | |
| 4162 | CSSParserValue* argument = args->current(); |
| 4163 | WillBeHeapVector<RefPtrWillBeMember<CSSPrimitiveValue> > widthArguments; |
| 4164 | bool hasRoundedInset = false; |
| 4165 | |
| 4166 | while (argument) { |
| 4167 | if (argument->unit == CSSPrimitiveValue::CSS_IDENT && equalIgnoringCase(argument->string, "round")) { |
| 4168 | hasRoundedInset = true; |
| 4169 | break; |
| 4170 | } |
| 4171 | |
| 4172 | Units unitFlags = FLength | FPercent; |
| 4173 | if (!validUnit(argument, unitFlags) || widthArguments.size() > 4) |
| 4174 | return nullptr; |
| 4175 | |
| 4176 | widthArguments.append(createPrimitiveNumericValue(argument)); |
| 4177 | argument = args->next(); |
| 4178 | } |
| 4179 | |
| 4180 | switch (widthArguments.size()) { |
| 4181 | case 1: { |
| 4182 | shape->updateShapeSize1Value(widthArguments[0].get()); |
| 4183 | break; |
| 4184 | } |
| 4185 | case 2: { |
| 4186 | shape->updateShapeSize2Values(widthArguments[0].get(), widthArguments[1].get()); |
| 4187 | break; |
| 4188 | } |
| 4189 | case 3: { |
| 4190 | shape->updateShapeSize3Values(widthArguments[0].get(), widthArguments[1].get(), widthArguments[2].get()); |
| 4191 | break; |
| 4192 | } |
| 4193 | case 4: { |
| 4194 | shape->updateShapeSize4Values(widthArguments[0].get(), widthArguments[1].get(), widthArguments[2].get(), widthArguments[3].get()); |
| 4195 | break; |
| 4196 | } |
| 4197 | default: |
| 4198 | return nullptr; |
| 4199 | } |
| 4200 | |
| 4201 | if (hasRoundedInset) |
| 4202 | return parseInsetRoundedCorners(shape, args); |
| 4203 | return shape; |
| 4204 | } |
| 4205 | |
| 4206 | static bool isItemPositionKeyword(CSSValueID id) |
| 4207 | { |
| 4208 | return id == CSSValueStart || id == CSSValueEnd || id == CSSValueCenter |
| 4209 | || id == CSSValueSelfStart || id == CSSValueSelfEnd || id == CSSValueFlexStart |
| 4210 | || id == CSSValueFlexEnd || id == CSSValueLeft || id == CSSValueRight; |
| 4211 | } |
| 4212 | |
| 4213 | bool CSSPropertyParser::parseItemPositionOverflowPosition(CSSPropertyID propId, bool important) |
| 4214 | { |
| 4215 | // auto | baseline | stretch | [<item-position> && <overflow-position>? ] |
| 4216 | // <item-position> = center | start | end | self-start | self-end | flex-start | flex-end | left | right; |
| 4217 | // <overflow-position> = true | safe |
| 4218 | |
| 4219 | CSSParserValue* value = m_valueList->current(); |
| 4220 | |
| 4221 | if (value->id == CSSValueAuto || value->id == CSSValueBaseline || value->id == CSSValueStretch) { |
| 4222 | if (m_valueList->next()) |
| 4223 | return false; |
| 4224 | |
| 4225 | addProperty(propId, cssValuePool().createIdentifierValue(value->id), important); |
| 4226 | return true; |
| 4227 | } |
| 4228 | |
| 4229 | RefPtrWillBeRawPtr<CSSPrimitiveValue> position = nullptr; |
| 4230 | RefPtrWillBeRawPtr<CSSPrimitiveValue> overflowAlignmentKeyword = nullptr; |
| 4231 | if (isItemPositionKeyword(value->id)) { |
| 4232 | position = cssValuePool().createIdentifierValue(value->id); |
| 4233 | value = m_valueList->next(); |
| 4234 | if (value) { |
| 4235 | if (value->id == CSSValueTrue || value->id == CSSValueSafe) |
| 4236 | overflowAlignmentKeyword = cssValuePool().createIdentifierValue(value->id); |
| 4237 | else |
| 4238 | return false; |
| 4239 | } |
| 4240 | } else if (value->id == CSSValueTrue || value->id == CSSValueSafe) { |
| 4241 | overflowAlignmentKeyword = cssValuePool().createIdentifierValue(value->id); |
| 4242 | value = m_valueList->next(); |
| 4243 | if (value) { |
| 4244 | if (isItemPositionKeyword(value->id)) |
| 4245 | position = cssValuePool().createIdentifierValue(value->id); |
| 4246 | else |
| 4247 | return false; |
| 4248 | } |
| 4249 | } else { |
| 4250 | return false; |
| 4251 | } |
| 4252 | |
| 4253 | if (m_valueList->next()) |
| 4254 | return false; |
| 4255 | |
| 4256 | ASSERT(position); |
| 4257 | if (overflowAlignmentKeyword) |
| 4258 | addProperty(propId, createPrimitiveValuePair(position, overflowAlignmentKeyword), important); |
| 4259 | else |
| 4260 | addProperty(propId, position.release(), important); |
| 4261 | |
| 4262 | return true; |
| 4263 | } |
| 4264 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4265 | PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseShapeRadius(CSSParserValue* value) |
| 4266 | { |
| 4267 | if (value->id == CSSValueClosestSide || value->id == CSSValueFarthestSide) |
| 4268 | return cssValuePool().createIdentifierValue(value->id); |
| 4269 | |
| 4270 | if (!validUnit(value, FLength | FPercent | FNonNeg)) |
| 4271 | return nullptr; |
| 4272 | |
| 4273 | return createPrimitiveNumericValue(value); |
| 4274 | } |
| 4275 | |
| 4276 | PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapeCircle(CSSParserValueList* args) |
| 4277 | { |
| 4278 | ASSERT(args); |
| 4279 | |
| 4280 | // circle(radius) |
Torne (Richard Coles) | 43e7502 | 2014-03-21 14:26:12 +0000 | [diff] [blame] | 4281 | // circle(radius at <position>) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4282 | // circle(at <position>) |
| 4283 | // where position defines centerX and centerY using a CSS <position> data type. |
| 4284 | RefPtrWillBeRawPtr<CSSBasicShapeCircle> shape = CSSBasicShapeCircle::create(); |
| 4285 | |
| 4286 | for (CSSParserValue* argument = args->current(); argument; argument = args->next()) { |
| 4287 | // The call to parseFillPosition below should consume all of the |
| 4288 | // arguments except the first two. Thus, and index greater than one |
| 4289 | // indicates an invalid production. |
| 4290 | if (args->currentIndex() > 1) |
| 4291 | return nullptr; |
| 4292 | |
| 4293 | if (!args->currentIndex() && argument->id != CSSValueAt) { |
| 4294 | if (RefPtrWillBeRawPtr<CSSPrimitiveValue> radius = parseShapeRadius(argument)) { |
| 4295 | shape->setRadius(radius); |
| 4296 | continue; |
| 4297 | } |
| 4298 | |
| 4299 | return nullptr; |
| 4300 | } |
| 4301 | |
Torne (Richard Coles) | 43e7502 | 2014-03-21 14:26:12 +0000 | [diff] [blame] | 4302 | if (argument->id == CSSValueAt && args->next()) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4303 | RefPtrWillBeRawPtr<CSSValue> centerX = nullptr; |
| 4304 | RefPtrWillBeRawPtr<CSSValue> centerY = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4305 | parseFillPosition(args, centerX, centerY); |
| 4306 | if (centerX && centerY && !args->current()) { |
| 4307 | ASSERT(centerX->isPrimitiveValue()); |
| 4308 | ASSERT(centerY->isPrimitiveValue()); |
| 4309 | shape->setCenterX(toCSSPrimitiveValue(centerX.get())); |
| 4310 | shape->setCenterY(toCSSPrimitiveValue(centerY.get())); |
| 4311 | } else { |
| 4312 | return nullptr; |
| 4313 | } |
| 4314 | } else { |
| 4315 | return nullptr; |
| 4316 | } |
| 4317 | } |
| 4318 | |
| 4319 | return shape; |
| 4320 | } |
| 4321 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4322 | PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapeEllipse(CSSParserValueList* args) |
| 4323 | { |
| 4324 | ASSERT(args); |
| 4325 | |
| 4326 | // ellipse(radiusX) |
Torne (Richard Coles) | 43e7502 | 2014-03-21 14:26:12 +0000 | [diff] [blame] | 4327 | // ellipse(radiusX at <position>) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4328 | // ellipse(radiusX radiusY) |
Torne (Richard Coles) | 43e7502 | 2014-03-21 14:26:12 +0000 | [diff] [blame] | 4329 | // ellipse(radiusX radiusY at <position>) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4330 | // ellipse(at <position>) |
| 4331 | // where position defines centerX and centerY using a CSS <position> data type. |
| 4332 | RefPtrWillBeRawPtr<CSSBasicShapeEllipse> shape = CSSBasicShapeEllipse::create(); |
| 4333 | |
| 4334 | for (CSSParserValue* argument = args->current(); argument; argument = args->next()) { |
| 4335 | // The call to parseFillPosition below should consume all of the |
| 4336 | // arguments except the first three. Thus, an index greater than two |
| 4337 | // indicates an invalid production. |
| 4338 | if (args->currentIndex() > 2) |
| 4339 | return nullptr; |
| 4340 | |
| 4341 | if (args->currentIndex() < 2 && argument->id != CSSValueAt) { |
| 4342 | if (RefPtrWillBeRawPtr<CSSPrimitiveValue> radius = parseShapeRadius(argument)) { |
| 4343 | if (!shape->radiusX()) |
| 4344 | shape->setRadiusX(radius); |
| 4345 | else |
| 4346 | shape->setRadiusY(radius); |
| 4347 | continue; |
| 4348 | } |
| 4349 | |
| 4350 | return nullptr; |
| 4351 | } |
| 4352 | |
Torne (Richard Coles) | 43e7502 | 2014-03-21 14:26:12 +0000 | [diff] [blame] | 4353 | if (argument->id != CSSValueAt || !args->next()) // expecting ellipse(.. at <position>) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4354 | return nullptr; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4355 | RefPtrWillBeRawPtr<CSSValue> centerX = nullptr; |
| 4356 | RefPtrWillBeRawPtr<CSSValue> centerY = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4357 | parseFillPosition(args, centerX, centerY); |
| 4358 | if (!centerX || !centerY || args->current()) |
| 4359 | return nullptr; |
| 4360 | |
| 4361 | ASSERT(centerX->isPrimitiveValue()); |
| 4362 | ASSERT(centerY->isPrimitiveValue()); |
| 4363 | shape->setCenterX(toCSSPrimitiveValue(centerX.get())); |
| 4364 | shape->setCenterY(toCSSPrimitiveValue(centerY.get())); |
| 4365 | } |
| 4366 | |
| 4367 | return shape; |
| 4368 | } |
| 4369 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4370 | PassRefPtrWillBeRawPtr<CSSBasicShape> CSSPropertyParser::parseBasicShapePolygon(CSSParserValueList* args) |
| 4371 | { |
| 4372 | ASSERT(args); |
| 4373 | |
| 4374 | unsigned size = args->size(); |
| 4375 | if (!size) |
| 4376 | return nullptr; |
| 4377 | |
| 4378 | RefPtrWillBeRawPtr<CSSBasicShapePolygon> shape = CSSBasicShapePolygon::create(); |
| 4379 | |
| 4380 | CSSParserValue* argument = args->current(); |
| 4381 | if (argument->id == CSSValueEvenodd || argument->id == CSSValueNonzero) { |
| 4382 | shape->setWindRule(argument->id == CSSValueEvenodd ? RULE_EVENODD : RULE_NONZERO); |
| 4383 | |
| 4384 | if (!isComma(args->next())) |
| 4385 | return nullptr; |
| 4386 | |
| 4387 | argument = args->next(); |
| 4388 | size -= 2; |
| 4389 | } |
| 4390 | |
| 4391 | // <length> <length>, ... <length> <length> -> each pair has 3 elements except the last one |
| 4392 | if (!size || (size % 3) - 2) |
| 4393 | return nullptr; |
| 4394 | |
| 4395 | CSSParserValue* argumentX = argument; |
| 4396 | while (argumentX) { |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 4397 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4398 | if (!validUnit(argumentX, FLength | FPercent)) |
| 4399 | return nullptr; |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 4400 | RefPtrWillBeRawPtr<CSSPrimitiveValue> xLength = createPrimitiveNumericValue(argumentX); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4401 | |
| 4402 | CSSParserValue* argumentY = args->next(); |
| 4403 | if (!argumentY || !validUnit(argumentY, FLength | FPercent)) |
| 4404 | return nullptr; |
| 4405 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4406 | RefPtrWillBeRawPtr<CSSPrimitiveValue> yLength = createPrimitiveNumericValue(argumentY); |
| 4407 | |
| 4408 | shape->appendPoint(xLength.release(), yLength.release()); |
| 4409 | |
| 4410 | CSSParserValue* commaOrNull = args->next(); |
| 4411 | if (!commaOrNull) |
| 4412 | argumentX = 0; |
| 4413 | else if (!isComma(commaOrNull)) |
| 4414 | return nullptr; |
| 4415 | else |
| 4416 | argumentX = args->next(); |
| 4417 | } |
| 4418 | |
| 4419 | return shape; |
| 4420 | } |
| 4421 | |
| 4422 | static bool isBoxValue(CSSValueID valueId) |
| 4423 | { |
| 4424 | switch (valueId) { |
| 4425 | case CSSValueContentBox: |
| 4426 | case CSSValuePaddingBox: |
| 4427 | case CSSValueBorderBox: |
| 4428 | case CSSValueMarginBox: |
| 4429 | return true; |
| 4430 | default: |
| 4431 | break; |
| 4432 | } |
| 4433 | |
| 4434 | return false; |
| 4435 | } |
| 4436 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4437 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseShapeProperty(CSSPropertyID propId) |
| 4438 | { |
| 4439 | if (!RuntimeEnabledFeatures::cssShapesEnabled()) |
| 4440 | return nullptr; |
| 4441 | |
| 4442 | CSSParserValue* value = m_valueList->current(); |
| 4443 | CSSValueID valueId = value->id; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4444 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4445 | if (valueId == CSSValueNone) { |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4446 | RefPtrWillBeRawPtr<CSSPrimitiveValue> keywordValue = parseValidPrimitive(valueId, value); |
| 4447 | m_valueList->next(); |
| 4448 | return keywordValue.release(); |
| 4449 | } |
| 4450 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4451 | RefPtrWillBeRawPtr<CSSValue> imageValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4452 | if (valueId != CSSValueNone && parseFillImage(m_valueList.get(), imageValue)) { |
| 4453 | m_valueList->next(); |
| 4454 | return imageValue.release(); |
| 4455 | } |
| 4456 | |
| 4457 | return parseBasicShapeAndOrBox(); |
| 4458 | } |
| 4459 | |
| 4460 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseBasicShapeAndOrBox() |
| 4461 | { |
| 4462 | CSSParserValue* value = m_valueList->current(); |
| 4463 | |
| 4464 | bool shapeFound = false; |
| 4465 | bool boxFound = false; |
| 4466 | CSSValueID valueId; |
| 4467 | |
| 4468 | RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated(); |
| 4469 | for (unsigned i = 0; i < 2; ++i) { |
| 4470 | if (!value) |
| 4471 | break; |
| 4472 | valueId = value->id; |
| 4473 | if (value->unit == CSSParserValue::Function && !shapeFound) { |
| 4474 | // parseBasicShape already asks for the next value list item. |
| 4475 | RefPtrWillBeRawPtr<CSSPrimitiveValue> shapeValue = parseBasicShape(); |
| 4476 | if (!shapeValue) |
| 4477 | return nullptr; |
| 4478 | list->append(shapeValue.release()); |
| 4479 | shapeFound = true; |
| 4480 | } else if (isBoxValue(valueId) && !boxFound) { |
| 4481 | list->append(parseValidPrimitive(valueId, value)); |
| 4482 | boxFound = true; |
| 4483 | m_valueList->next(); |
| 4484 | } else { |
| 4485 | return nullptr; |
| 4486 | } |
| 4487 | |
| 4488 | value = m_valueList->current(); |
| 4489 | } |
| 4490 | |
| 4491 | if (m_valueList->current()) |
| 4492 | return nullptr; |
| 4493 | return list.release(); |
| 4494 | } |
| 4495 | |
| 4496 | PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseBasicShape() |
| 4497 | { |
| 4498 | CSSParserValue* value = m_valueList->current(); |
| 4499 | ASSERT(value->unit == CSSParserValue::Function); |
| 4500 | CSSParserValueList* args = value->function->args.get(); |
| 4501 | |
| 4502 | if (!args) |
| 4503 | return nullptr; |
| 4504 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4505 | RefPtrWillBeRawPtr<CSSBasicShape> shape = nullptr; |
| 4506 | if (equalIgnoringCase(value->function->name, "circle(")) |
| 4507 | shape = parseBasicShapeCircle(args); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4508 | else if (equalIgnoringCase(value->function->name, "ellipse(")) |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4509 | shape = parseBasicShapeEllipse(args); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4510 | else if (equalIgnoringCase(value->function->name, "polygon(")) |
| 4511 | shape = parseBasicShapePolygon(args); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4512 | else if (equalIgnoringCase(value->function->name, "inset(")) |
| 4513 | shape = parseBasicShapeInset(args); |
| 4514 | |
| 4515 | if (!shape) |
| 4516 | return nullptr; |
| 4517 | |
| 4518 | m_valueList->next(); |
| 4519 | |
| 4520 | return cssValuePool().createValue(shape.release()); |
| 4521 | } |
| 4522 | |
| 4523 | // [ 'font-style' || 'font-variant' || 'font-weight' ]? 'font-size' [ / 'line-height' ]? 'font-family' |
| 4524 | bool CSSPropertyParser::parseFont(bool important) |
| 4525 | { |
| 4526 | // Let's check if there is an inherit or initial somewhere in the shorthand. |
| 4527 | for (unsigned i = 0; i < m_valueList->size(); ++i) { |
| 4528 | if (m_valueList->valueAt(i)->id == CSSValueInherit || m_valueList->valueAt(i)->id == CSSValueInitial) |
| 4529 | return false; |
| 4530 | } |
| 4531 | |
| 4532 | ShorthandScope scope(this, CSSPropertyFont); |
| 4533 | // Optional font-style, font-variant and font-weight. |
| 4534 | bool fontStyleParsed = false; |
| 4535 | bool fontVariantParsed = false; |
| 4536 | bool fontWeightParsed = false; |
| 4537 | CSSParserValue* value; |
| 4538 | while ((value = m_valueList->current())) { |
| 4539 | if (!fontStyleParsed && isValidKeywordPropertyAndValue(CSSPropertyFontStyle, value->id, m_context)) { |
| 4540 | addProperty(CSSPropertyFontStyle, cssValuePool().createIdentifierValue(value->id), important); |
| 4541 | fontStyleParsed = true; |
| 4542 | } else if (!fontVariantParsed && (value->id == CSSValueNormal || value->id == CSSValueSmallCaps)) { |
| 4543 | // Font variant in the shorthand is particular, it only accepts normal or small-caps. |
| 4544 | addProperty(CSSPropertyFontVariant, cssValuePool().createIdentifierValue(value->id), important); |
| 4545 | fontVariantParsed = true; |
| 4546 | } else if (!fontWeightParsed && parseFontWeight(important)) |
| 4547 | fontWeightParsed = true; |
| 4548 | else |
| 4549 | break; |
| 4550 | m_valueList->next(); |
| 4551 | } |
| 4552 | |
| 4553 | if (!value) |
| 4554 | return false; |
| 4555 | |
| 4556 | if (!fontStyleParsed) |
| 4557 | addProperty(CSSPropertyFontStyle, cssValuePool().createIdentifierValue(CSSValueNormal), important, true); |
| 4558 | if (!fontVariantParsed) |
| 4559 | addProperty(CSSPropertyFontVariant, cssValuePool().createIdentifierValue(CSSValueNormal), important, true); |
| 4560 | if (!fontWeightParsed) |
| 4561 | addProperty(CSSPropertyFontWeight, cssValuePool().createIdentifierValue(CSSValueNormal), important, true); |
| 4562 | |
| 4563 | // Now a font size _must_ come. |
| 4564 | // <absolute-size> | <relative-size> | <length> | <percentage> | inherit |
| 4565 | if (!parseFontSize(important)) |
| 4566 | return false; |
| 4567 | |
| 4568 | value = m_valueList->current(); |
| 4569 | if (!value) |
| 4570 | return false; |
| 4571 | |
| 4572 | if (isForwardSlashOperator(value)) { |
| 4573 | // The line-height property. |
| 4574 | value = m_valueList->next(); |
| 4575 | if (!value) |
| 4576 | return false; |
| 4577 | if (!parseLineHeight(important)) |
| 4578 | return false; |
| 4579 | } else |
| 4580 | addProperty(CSSPropertyLineHeight, cssValuePool().createIdentifierValue(CSSValueNormal), important, true); |
| 4581 | |
| 4582 | // Font family must come now. |
| 4583 | RefPtrWillBeRawPtr<CSSValue> parsedFamilyValue = parseFontFamily(); |
| 4584 | if (!parsedFamilyValue) |
| 4585 | return false; |
| 4586 | |
| 4587 | addProperty(CSSPropertyFontFamily, parsedFamilyValue.release(), important); |
| 4588 | |
| 4589 | // FIXME: http://www.w3.org/TR/2011/WD-css3-fonts-20110324/#font-prop requires that |
| 4590 | // "font-stretch", "font-size-adjust", and "font-kerning" be reset to their initial values |
| 4591 | // but we don't seem to support them at the moment. They should also be added here once implemented. |
| 4592 | if (m_valueList->current()) |
| 4593 | return false; |
| 4594 | |
| 4595 | return true; |
| 4596 | } |
| 4597 | |
| 4598 | class FontFamilyValueBuilder { |
| 4599 | DISALLOW_ALLOCATION(); |
| 4600 | public: |
| 4601 | FontFamilyValueBuilder(CSSValueList* list) |
| 4602 | : m_list(list) |
| 4603 | { |
| 4604 | } |
| 4605 | |
| 4606 | void add(const CSSParserString& string) |
| 4607 | { |
| 4608 | if (!m_builder.isEmpty()) |
| 4609 | m_builder.append(' '); |
| 4610 | |
| 4611 | if (string.is8Bit()) { |
| 4612 | m_builder.append(string.characters8(), string.length()); |
| 4613 | return; |
| 4614 | } |
| 4615 | |
| 4616 | m_builder.append(string.characters16(), string.length()); |
| 4617 | } |
| 4618 | |
| 4619 | void commit() |
| 4620 | { |
| 4621 | if (m_builder.isEmpty()) |
| 4622 | return; |
| 4623 | m_list->append(cssValuePool().createFontFamilyValue(m_builder.toString())); |
| 4624 | m_builder.clear(); |
| 4625 | } |
| 4626 | |
| 4627 | private: |
| 4628 | StringBuilder m_builder; |
| 4629 | CSSValueList* m_list; |
| 4630 | }; |
| 4631 | |
| 4632 | PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseFontFamily() |
| 4633 | { |
| 4634 | RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); |
| 4635 | CSSParserValue* value = m_valueList->current(); |
| 4636 | |
| 4637 | FontFamilyValueBuilder familyBuilder(list.get()); |
| 4638 | bool inFamily = false; |
| 4639 | |
| 4640 | while (value) { |
| 4641 | CSSParserValue* nextValue = m_valueList->next(); |
| 4642 | bool nextValBreaksFont = !nextValue || |
| 4643 | (nextValue->unit == CSSParserValue::Operator && nextValue->iValue == ','); |
| 4644 | bool nextValIsFontName = nextValue && |
| 4645 | ((nextValue->id >= CSSValueSerif && nextValue->id <= CSSValueWebkitBody) || |
| 4646 | (nextValue->unit == CSSPrimitiveValue::CSS_STRING || nextValue->unit == CSSPrimitiveValue::CSS_IDENT)); |
| 4647 | |
| 4648 | bool valueIsKeyword = value->id == CSSValueInitial || value->id == CSSValueInherit || value->id == CSSValueDefault; |
| 4649 | if (valueIsKeyword && !inFamily) { |
| 4650 | if (nextValBreaksFont) |
| 4651 | value = m_valueList->next(); |
| 4652 | else if (nextValIsFontName) |
| 4653 | value = nextValue; |
| 4654 | continue; |
| 4655 | } |
| 4656 | |
| 4657 | if (value->id >= CSSValueSerif && value->id <= CSSValueWebkitBody) { |
| 4658 | if (inFamily) |
| 4659 | familyBuilder.add(value->string); |
| 4660 | else if (nextValBreaksFont || !nextValIsFontName) |
| 4661 | list->append(cssValuePool().createIdentifierValue(value->id)); |
| 4662 | else { |
| 4663 | familyBuilder.commit(); |
| 4664 | familyBuilder.add(value->string); |
| 4665 | inFamily = true; |
| 4666 | } |
| 4667 | } else if (value->unit == CSSPrimitiveValue::CSS_STRING) { |
| 4668 | // Strings never share in a family name. |
| 4669 | inFamily = false; |
| 4670 | familyBuilder.commit(); |
| 4671 | list->append(cssValuePool().createFontFamilyValue(value->string)); |
| 4672 | } else if (value->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 4673 | if (inFamily) |
| 4674 | familyBuilder.add(value->string); |
| 4675 | else if (nextValBreaksFont || !nextValIsFontName) |
| 4676 | list->append(cssValuePool().createFontFamilyValue(value->string)); |
| 4677 | else { |
| 4678 | familyBuilder.commit(); |
| 4679 | familyBuilder.add(value->string); |
| 4680 | inFamily = true; |
| 4681 | } |
| 4682 | } else { |
| 4683 | break; |
| 4684 | } |
| 4685 | |
| 4686 | if (!nextValue) |
| 4687 | break; |
| 4688 | |
| 4689 | if (nextValBreaksFont) { |
| 4690 | value = m_valueList->next(); |
| 4691 | familyBuilder.commit(); |
| 4692 | inFamily = false; |
| 4693 | } |
| 4694 | else if (nextValIsFontName) |
| 4695 | value = nextValue; |
| 4696 | else |
| 4697 | break; |
| 4698 | } |
| 4699 | familyBuilder.commit(); |
| 4700 | |
| 4701 | if (!list->length()) |
| 4702 | list = nullptr; |
| 4703 | return list.release(); |
| 4704 | } |
| 4705 | |
| 4706 | bool CSSPropertyParser::parseLineHeight(bool important) |
| 4707 | { |
| 4708 | CSSParserValue* value = m_valueList->current(); |
| 4709 | CSSValueID id = value->id; |
| 4710 | bool validPrimitive = false; |
| 4711 | // normal | <number> | <length> | <percentage> | inherit |
| 4712 | if (id == CSSValueNormal) |
| 4713 | validPrimitive = true; |
| 4714 | else |
| 4715 | validPrimitive = (!id && validUnit(value, FNumber | FLength | FPercent | FNonNeg)); |
| 4716 | if (validPrimitive && (!m_valueList->next() || inShorthand())) |
| 4717 | addProperty(CSSPropertyLineHeight, parseValidPrimitive(id, value), important); |
| 4718 | return validPrimitive; |
| 4719 | } |
| 4720 | |
| 4721 | bool CSSPropertyParser::parseFontSize(bool important) |
| 4722 | { |
| 4723 | CSSParserValue* value = m_valueList->current(); |
| 4724 | CSSValueID id = value->id; |
| 4725 | bool validPrimitive = false; |
| 4726 | // <absolute-size> | <relative-size> | <length> | <percentage> | inherit |
| 4727 | if (id >= CSSValueXxSmall && id <= CSSValueLarger) |
| 4728 | validPrimitive = true; |
| 4729 | else |
| 4730 | validPrimitive = validUnit(value, FLength | FPercent | FNonNeg); |
| 4731 | if (validPrimitive && (!m_valueList->next() || inShorthand())) |
| 4732 | addProperty(CSSPropertyFontSize, parseValidPrimitive(id, value), important); |
| 4733 | return validPrimitive; |
| 4734 | } |
| 4735 | |
| 4736 | bool CSSPropertyParser::parseFontVariant(bool important) |
| 4737 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4738 | RefPtrWillBeRawPtr<CSSValueList> values = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4739 | if (m_valueList->size() > 1) |
| 4740 | values = CSSValueList::createCommaSeparated(); |
| 4741 | CSSParserValue* val; |
| 4742 | bool expectComma = false; |
| 4743 | while ((val = m_valueList->current())) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 4744 | RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4745 | if (!expectComma) { |
| 4746 | expectComma = true; |
| 4747 | if (val->id == CSSValueNormal || val->id == CSSValueSmallCaps) |
| 4748 | parsedValue = cssValuePool().createIdentifierValue(val->id); |
| 4749 | else if (val->id == CSSValueAll && !values) { |
| 4750 | // 'all' is only allowed in @font-face and with no other values. Make a value list to |
| 4751 | // indicate that we are in the @font-face case. |
| 4752 | values = CSSValueList::createCommaSeparated(); |
| 4753 | parsedValue = cssValuePool().createIdentifierValue(val->id); |
| 4754 | } |
| 4755 | } else if (val->unit == CSSParserValue::Operator && val->iValue == ',') { |
| 4756 | expectComma = false; |
| 4757 | m_valueList->next(); |
| 4758 | continue; |
| 4759 | } |
| 4760 | |
| 4761 | if (!parsedValue) |
| 4762 | return false; |
| 4763 | |
| 4764 | m_valueList->next(); |
| 4765 | |
| 4766 | if (values) |
| 4767 | values->append(parsedValue.release()); |
| 4768 | else { |
| 4769 | addProperty(CSSPropertyFontVariant, parsedValue.release(), important); |
| 4770 | return true; |
| 4771 | } |
| 4772 | } |
| 4773 | |
| 4774 | if (values && values->length()) { |
| 4775 | m_hasFontFaceOnlyValues = true; |
| 4776 | addProperty(CSSPropertyFontVariant, values.release(), important); |
| 4777 | return true; |
| 4778 | } |
| 4779 | |
| 4780 | return false; |
| 4781 | } |
| 4782 | |
| 4783 | bool CSSPropertyParser::parseFontWeight(bool important) |
| 4784 | { |
| 4785 | CSSParserValue* value = m_valueList->current(); |
| 4786 | if ((value->id >= CSSValueNormal) && (value->id <= CSSValue900)) { |
| 4787 | addProperty(CSSPropertyFontWeight, cssValuePool().createIdentifierValue(value->id), important); |
| 4788 | return true; |
| 4789 | } |
| 4790 | if (validUnit(value, FInteger | FNonNeg, HTMLQuirksMode)) { |
| 4791 | int weight = static_cast<int>(value->fValue); |
| 4792 | if (!(weight % 100) && weight >= 100 && weight <= 900) { |
| 4793 | addProperty(CSSPropertyFontWeight, cssValuePool().createIdentifierValue(static_cast<CSSValueID>(CSSValue100 + weight / 100 - 1)), important); |
| 4794 | return true; |
| 4795 | } |
| 4796 | } |
| 4797 | return false; |
| 4798 | } |
| 4799 | |
| 4800 | bool CSSPropertyParser::parseFontFaceSrcURI(CSSValueList* valueList) |
| 4801 | { |
| 4802 | RefPtrWillBeRawPtr<CSSFontFaceSrcValue> uriValue(CSSFontFaceSrcValue::create(completeURL(m_valueList->current()->string))); |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 4803 | uriValue->setReferrer(m_context.baseURL().strippedForUseAsReferrer()); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 4804 | |
| 4805 | CSSParserValue* value = m_valueList->next(); |
| 4806 | if (!value) { |
| 4807 | valueList->append(uriValue.release()); |
| 4808 | return true; |
| 4809 | } |
| 4810 | if (value->unit == CSSParserValue::Operator && value->iValue == ',') { |
| 4811 | m_valueList->next(); |
| 4812 | valueList->append(uriValue.release()); |
| 4813 | return true; |
| 4814 | } |
| 4815 | |
| 4816 | if (value->unit != CSSParserValue::Function || !equalIgnoringCase(value->function->name, "format(")) |
| 4817 | return false; |
| 4818 | |
| 4819 | // FIXME: http://www.w3.org/TR/2011/WD-css3-fonts-20111004/ says that format() contains a comma-separated list of strings, |
| 4820 | // but CSSFontFaceSrcValue stores only one format. Allowing one format for now. |
| 4821 | CSSParserValueList* args = value->function->args.get(); |
| 4822 | if (!args || args->size() != 1 || (args->current()->unit != CSSPrimitiveValue::CSS_STRING && args->current()->unit != CSSPrimitiveValue::CSS_IDENT)) |
| 4823 | return false; |
| 4824 | uriValue->setFormat(args->current()->string); |
| 4825 | valueList->append(uriValue.release()); |
| 4826 | value = m_valueList->next(); |
| 4827 | if (value && value->unit == CSSParserValue::Operator && value->iValue == ',') |
| 4828 | m_valueList->next(); |
| 4829 | return true; |
| 4830 | } |
| 4831 | |
| 4832 | bool CSSPropertyParser::parseFontFaceSrcLocal(CSSValueList* valueList) |
| 4833 | { |
| 4834 | CSSParserValueList* args = m_valueList->current()->function->args.get(); |
| 4835 | if (!args || !args->size()) |
| 4836 | return false; |
| 4837 | |
| 4838 | if (args->size() == 1 && args->current()->unit == CSSPrimitiveValue::CSS_STRING) |
| 4839 | valueList->append(CSSFontFaceSrcValue::createLocal(args->current()->string)); |
| 4840 | else if (args->current()->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 4841 | StringBuilder builder; |
| 4842 | for (CSSParserValue* localValue = args->current(); localValue; localValue = args->next()) { |
| 4843 | if (localValue->unit != CSSPrimitiveValue::CSS_IDENT) |
| 4844 | return false; |
| 4845 | if (!builder.isEmpty()) |
| 4846 | builder.append(' '); |
| 4847 | builder.append(localValue->string); |
| 4848 | } |
| 4849 | valueList->append(CSSFontFaceSrcValue::createLocal(builder.toString())); |
| 4850 | } else |
| 4851 | return false; |
| 4852 | |
| 4853 | if (CSSParserValue* value = m_valueList->next()) { |
| 4854 | if (value->unit == CSSParserValue::Operator && value->iValue == ',') |
| 4855 | m_valueList->next(); |
| 4856 | } |
| 4857 | return true; |
| 4858 | } |
| 4859 | |
| 4860 | bool CSSPropertyParser::parseFontFaceSrc() |
| 4861 | { |
| 4862 | RefPtrWillBeRawPtr<CSSValueList> values(CSSValueList::createCommaSeparated()); |
| 4863 | |
| 4864 | while (CSSParserValue* value = m_valueList->current()) { |
| 4865 | if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| 4866 | if (!parseFontFaceSrcURI(values.get())) |
| 4867 | return false; |
| 4868 | } else if (value->unit == CSSParserValue::Function && equalIgnoringCase(value->function->name, "local(")) { |
| 4869 | if (!parseFontFaceSrcLocal(values.get())) |
| 4870 | return false; |
| 4871 | } else |
| 4872 | return false; |
| 4873 | } |
| 4874 | if (!values->length()) |
| 4875 | return false; |
| 4876 | |
| 4877 | addProperty(CSSPropertySrc, values.release(), m_important); |
| 4878 | m_valueList->next(); |
| 4879 | return true; |
| 4880 | } |
| 4881 | |
| 4882 | bool CSSPropertyParser::parseFontFaceUnicodeRange() |
| 4883 | { |
| 4884 | RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated(); |
| 4885 | bool failed = false; |
| 4886 | bool operatorExpected = false; |
| 4887 | for (; m_valueList->current(); m_valueList->next(), operatorExpected = !operatorExpected) { |
| 4888 | if (operatorExpected) { |
| 4889 | if (m_valueList->current()->unit == CSSParserValue::Operator && m_valueList->current()->iValue == ',') |
| 4890 | continue; |
| 4891 | failed = true; |
| 4892 | break; |
| 4893 | } |
| 4894 | if (m_valueList->current()->unit != CSSPrimitiveValue::CSS_UNICODE_RANGE) { |
| 4895 | failed = true; |
| 4896 | break; |
| 4897 | } |
| 4898 | |
| 4899 | String rangeString = m_valueList->current()->string; |
| 4900 | UChar32 from = 0; |
| 4901 | UChar32 to = 0; |
| 4902 | unsigned length = rangeString.length(); |
| 4903 | |
| 4904 | if (length < 3) { |
| 4905 | failed = true; |
| 4906 | break; |
| 4907 | } |
| 4908 | |
| 4909 | unsigned i = 2; |
| 4910 | while (i < length) { |
| 4911 | UChar c = rangeString[i]; |
| 4912 | if (c == '-' || c == '?') |
| 4913 | break; |
| 4914 | from *= 16; |
| 4915 | if (c >= '0' && c <= '9') |
| 4916 | from += c - '0'; |
| 4917 | else if (c >= 'A' && c <= 'F') |
| 4918 | from += 10 + c - 'A'; |
| 4919 | else if (c >= 'a' && c <= 'f') |
| 4920 | from += 10 + c - 'a'; |
| 4921 | else { |
| 4922 | failed = true; |
| 4923 | break; |
| 4924 | } |
| 4925 | i++; |
| 4926 | } |
| 4927 | if (failed) |
| 4928 | break; |
| 4929 | |
| 4930 | if (i == length) |
| 4931 | to = from; |
| 4932 | else if (rangeString[i] == '?') { |
| 4933 | unsigned span = 1; |
| 4934 | while (i < length && rangeString[i] == '?') { |
| 4935 | span *= 16; |
| 4936 | from *= 16; |
| 4937 | i++; |
| 4938 | } |
| 4939 | if (i < length) |
| 4940 | failed = true; |
| 4941 | to = from + span - 1; |
| 4942 | } else { |
| 4943 | if (length < i + 2) { |
| 4944 | failed = true; |
| 4945 | break; |
| 4946 | } |
| 4947 | i++; |
| 4948 | while (i < length) { |
| 4949 | UChar c = rangeString[i]; |
| 4950 | to *= 16; |
| 4951 | if (c >= '0' && c <= '9') |
| 4952 | to += c - '0'; |
| 4953 | else if (c >= 'A' && c <= 'F') |
| 4954 | to += 10 + c - 'A'; |
| 4955 | else if (c >= 'a' && c <= 'f') |
| 4956 | to += 10 + c - 'a'; |
| 4957 | else { |
| 4958 | failed = true; |
| 4959 | break; |
| 4960 | } |
| 4961 | i++; |
| 4962 | } |
| 4963 | if (failed) |
| 4964 | break; |
| 4965 | } |
| 4966 | if (from <= to) |
| 4967 | values->append(CSSUnicodeRangeValue::create(from, to)); |
| 4968 | } |
| 4969 | if (failed || !values->length()) |
| 4970 | return false; |
| 4971 | addProperty(CSSPropertyUnicodeRange, values.release(), m_important); |
| 4972 | return true; |
| 4973 | } |
| 4974 | |
| 4975 | // Returns the number of characters which form a valid double |
| 4976 | // and are terminated by the given terminator character |
| 4977 | template <typename CharacterType> |
| 4978 | static int checkForValidDouble(const CharacterType* string, const CharacterType* end, const char terminator) |
| 4979 | { |
| 4980 | int length = end - string; |
| 4981 | if (length < 1) |
| 4982 | return 0; |
| 4983 | |
| 4984 | bool decimalMarkSeen = false; |
| 4985 | int processedLength = 0; |
| 4986 | |
| 4987 | for (int i = 0; i < length; ++i) { |
| 4988 | if (string[i] == terminator) { |
| 4989 | processedLength = i; |
| 4990 | break; |
| 4991 | } |
| 4992 | if (!isASCIIDigit(string[i])) { |
| 4993 | if (!decimalMarkSeen && string[i] == '.') |
| 4994 | decimalMarkSeen = true; |
| 4995 | else |
| 4996 | return 0; |
| 4997 | } |
| 4998 | } |
| 4999 | |
| 5000 | if (decimalMarkSeen && processedLength == 1) |
| 5001 | return 0; |
| 5002 | |
| 5003 | return processedLength; |
| 5004 | } |
| 5005 | |
| 5006 | // Returns the number of characters consumed for parsing a valid double |
| 5007 | // terminated by the given terminator character |
| 5008 | template <typename CharacterType> |
| 5009 | static int parseDouble(const CharacterType* string, const CharacterType* end, const char terminator, double& value) |
| 5010 | { |
| 5011 | int length = checkForValidDouble(string, end, terminator); |
| 5012 | if (!length) |
| 5013 | return 0; |
| 5014 | |
| 5015 | int position = 0; |
| 5016 | double localValue = 0; |
| 5017 | |
| 5018 | // The consumed characters here are guaranteed to be |
| 5019 | // ASCII digits with or without a decimal mark |
| 5020 | for (; position < length; ++position) { |
| 5021 | if (string[position] == '.') |
| 5022 | break; |
| 5023 | localValue = localValue * 10 + string[position] - '0'; |
| 5024 | } |
| 5025 | |
| 5026 | if (++position == length) { |
| 5027 | value = localValue; |
| 5028 | return length; |
| 5029 | } |
| 5030 | |
| 5031 | double fraction = 0; |
| 5032 | double scale = 1; |
| 5033 | |
| 5034 | while (position < length && scale < MAX_SCALE) { |
| 5035 | fraction = fraction * 10 + string[position++] - '0'; |
| 5036 | scale *= 10; |
| 5037 | } |
| 5038 | |
| 5039 | value = localValue + fraction / scale; |
| 5040 | return length; |
| 5041 | } |
| 5042 | |
| 5043 | template <typename CharacterType> |
| 5044 | static bool parseColorIntOrPercentage(const CharacterType*& string, const CharacterType* end, const char terminator, CSSPrimitiveValue::UnitTypes& expect, int& value) |
| 5045 | { |
| 5046 | const CharacterType* current = string; |
| 5047 | double localValue = 0; |
| 5048 | bool negative = false; |
| 5049 | while (current != end && isHTMLSpace<CharacterType>(*current)) |
| 5050 | current++; |
| 5051 | if (current != end && *current == '-') { |
| 5052 | negative = true; |
| 5053 | current++; |
| 5054 | } |
| 5055 | if (current == end || !isASCIIDigit(*current)) |
| 5056 | return false; |
| 5057 | while (current != end && isASCIIDigit(*current)) { |
| 5058 | double newValue = localValue * 10 + *current++ - '0'; |
| 5059 | if (newValue >= 255) { |
| 5060 | // Clamp values at 255. |
| 5061 | localValue = 255; |
| 5062 | while (current != end && isASCIIDigit(*current)) |
| 5063 | ++current; |
| 5064 | break; |
| 5065 | } |
| 5066 | localValue = newValue; |
| 5067 | } |
| 5068 | |
| 5069 | if (current == end) |
| 5070 | return false; |
| 5071 | |
| 5072 | if (expect == CSSPrimitiveValue::CSS_NUMBER && (*current == '.' || *current == '%')) |
| 5073 | return false; |
| 5074 | |
| 5075 | if (*current == '.') { |
| 5076 | // We already parsed the integral part, try to parse |
| 5077 | // the fraction part of the percentage value. |
| 5078 | double percentage = 0; |
| 5079 | int numCharactersParsed = parseDouble(current, end, '%', percentage); |
| 5080 | if (!numCharactersParsed) |
| 5081 | return false; |
| 5082 | current += numCharactersParsed; |
| 5083 | if (*current != '%') |
| 5084 | return false; |
| 5085 | localValue += percentage; |
| 5086 | } |
| 5087 | |
| 5088 | if (expect == CSSPrimitiveValue::CSS_PERCENTAGE && *current != '%') |
| 5089 | return false; |
| 5090 | |
| 5091 | if (*current == '%') { |
| 5092 | expect = CSSPrimitiveValue::CSS_PERCENTAGE; |
| 5093 | localValue = localValue / 100.0 * 256.0; |
| 5094 | // Clamp values at 255 for percentages over 100% |
| 5095 | if (localValue > 255) |
| 5096 | localValue = 255; |
| 5097 | current++; |
| 5098 | } else |
| 5099 | expect = CSSPrimitiveValue::CSS_NUMBER; |
| 5100 | |
| 5101 | while (current != end && isHTMLSpace<CharacterType>(*current)) |
| 5102 | current++; |
| 5103 | if (current == end || *current++ != terminator) |
| 5104 | return false; |
| 5105 | // Clamp negative values at zero. |
| 5106 | value = negative ? 0 : static_cast<int>(localValue); |
| 5107 | string = current; |
| 5108 | return true; |
| 5109 | } |
| 5110 | |
| 5111 | template <typename CharacterType> |
| 5112 | static inline bool isTenthAlpha(const CharacterType* string, const int length) |
| 5113 | { |
| 5114 | // "0.X" |
| 5115 | if (length == 3 && string[0] == '0' && string[1] == '.' && isASCIIDigit(string[2])) |
| 5116 | return true; |
| 5117 | |
| 5118 | // ".X" |
| 5119 | if (length == 2 && string[0] == '.' && isASCIIDigit(string[1])) |
| 5120 | return true; |
| 5121 | |
| 5122 | return false; |
| 5123 | } |
| 5124 | |
| 5125 | template <typename CharacterType> |
| 5126 | static inline bool parseAlphaValue(const CharacterType*& string, const CharacterType* end, const char terminator, int& value) |
| 5127 | { |
| 5128 | while (string != end && isHTMLSpace<CharacterType>(*string)) |
| 5129 | string++; |
| 5130 | |
| 5131 | bool negative = false; |
| 5132 | |
| 5133 | if (string != end && *string == '-') { |
| 5134 | negative = true; |
| 5135 | string++; |
| 5136 | } |
| 5137 | |
| 5138 | value = 0; |
| 5139 | |
| 5140 | int length = end - string; |
| 5141 | if (length < 2) |
| 5142 | return false; |
| 5143 | |
| 5144 | if (string[length - 1] != terminator || !isASCIIDigit(string[length - 2])) |
| 5145 | return false; |
| 5146 | |
| 5147 | if (string[0] != '0' && string[0] != '1' && string[0] != '.') { |
| 5148 | if (checkForValidDouble(string, end, terminator)) { |
| 5149 | value = negative ? 0 : 255; |
| 5150 | string = end; |
| 5151 | return true; |
| 5152 | } |
| 5153 | return false; |
| 5154 | } |
| 5155 | |
| 5156 | if (length == 2 && string[0] != '.') { |
| 5157 | value = !negative && string[0] == '1' ? 255 : 0; |
| 5158 | string = end; |
| 5159 | return true; |
| 5160 | } |
| 5161 | |
| 5162 | if (isTenthAlpha(string, length - 1)) { |
| 5163 | static const int tenthAlphaValues[] = { 0, 25, 51, 76, 102, 127, 153, 179, 204, 230 }; |
| 5164 | value = negative ? 0 : tenthAlphaValues[string[length - 2] - '0']; |
| 5165 | string = end; |
| 5166 | return true; |
| 5167 | } |
| 5168 | |
| 5169 | double alpha = 0; |
| 5170 | if (!parseDouble(string, end, terminator, alpha)) |
| 5171 | return false; |
| 5172 | value = negative ? 0 : static_cast<int>(alpha * nextafter(256.0, 0.0)); |
| 5173 | string = end; |
| 5174 | return true; |
| 5175 | } |
| 5176 | |
| 5177 | template <typename CharacterType> |
| 5178 | static inline bool mightBeRGBA(const CharacterType* characters, unsigned length) |
| 5179 | { |
| 5180 | if (length < 5) |
| 5181 | return false; |
| 5182 | return characters[4] == '(' |
| 5183 | && isASCIIAlphaCaselessEqual(characters[0], 'r') |
| 5184 | && isASCIIAlphaCaselessEqual(characters[1], 'g') |
| 5185 | && isASCIIAlphaCaselessEqual(characters[2], 'b') |
| 5186 | && isASCIIAlphaCaselessEqual(characters[3], 'a'); |
| 5187 | } |
| 5188 | |
| 5189 | template <typename CharacterType> |
| 5190 | static inline bool mightBeRGB(const CharacterType* characters, unsigned length) |
| 5191 | { |
| 5192 | if (length < 4) |
| 5193 | return false; |
| 5194 | return characters[3] == '(' |
| 5195 | && isASCIIAlphaCaselessEqual(characters[0], 'r') |
| 5196 | && isASCIIAlphaCaselessEqual(characters[1], 'g') |
| 5197 | && isASCIIAlphaCaselessEqual(characters[2], 'b'); |
| 5198 | } |
| 5199 | |
| 5200 | template <typename CharacterType> |
| 5201 | static inline bool fastParseColorInternal(RGBA32& rgb, const CharacterType* characters, unsigned length , bool strict) |
| 5202 | { |
| 5203 | CSSPrimitiveValue::UnitTypes expect = CSSPrimitiveValue::CSS_UNKNOWN; |
| 5204 | |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 5205 | if (length >= 4 && characters[0] == '#') |
| 5206 | return Color::parseHexColor(characters + 1, length - 1, rgb); |
| 5207 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5208 | if (!strict && length >= 3) { |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 5209 | if (Color::parseHexColor(characters, length, rgb)) |
| 5210 | return true; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5211 | } |
| 5212 | |
| 5213 | // Try rgba() syntax. |
| 5214 | if (mightBeRGBA(characters, length)) { |
| 5215 | const CharacterType* current = characters + 5; |
| 5216 | const CharacterType* end = characters + length; |
| 5217 | int red; |
| 5218 | int green; |
| 5219 | int blue; |
| 5220 | int alpha; |
| 5221 | |
| 5222 | if (!parseColorIntOrPercentage(current, end, ',', expect, red)) |
| 5223 | return false; |
| 5224 | if (!parseColorIntOrPercentage(current, end, ',', expect, green)) |
| 5225 | return false; |
| 5226 | if (!parseColorIntOrPercentage(current, end, ',', expect, blue)) |
| 5227 | return false; |
| 5228 | if (!parseAlphaValue(current, end, ')', alpha)) |
| 5229 | return false; |
| 5230 | if (current != end) |
| 5231 | return false; |
| 5232 | rgb = makeRGBA(red, green, blue, alpha); |
| 5233 | return true; |
| 5234 | } |
| 5235 | |
| 5236 | // Try rgb() syntax. |
| 5237 | if (mightBeRGB(characters, length)) { |
| 5238 | const CharacterType* current = characters + 4; |
| 5239 | const CharacterType* end = characters + length; |
| 5240 | int red; |
| 5241 | int green; |
| 5242 | int blue; |
| 5243 | if (!parseColorIntOrPercentage(current, end, ',', expect, red)) |
| 5244 | return false; |
| 5245 | if (!parseColorIntOrPercentage(current, end, ',', expect, green)) |
| 5246 | return false; |
| 5247 | if (!parseColorIntOrPercentage(current, end, ')', expect, blue)) |
| 5248 | return false; |
| 5249 | if (current != end) |
| 5250 | return false; |
| 5251 | rgb = makeRGB(red, green, blue); |
| 5252 | return true; |
| 5253 | } |
| 5254 | |
| 5255 | return false; |
| 5256 | } |
| 5257 | |
| 5258 | template<typename StringType> |
| 5259 | bool CSSPropertyParser::fastParseColor(RGBA32& rgb, const StringType& name, bool strict) |
| 5260 | { |
| 5261 | unsigned length = name.length(); |
| 5262 | bool parseResult; |
| 5263 | |
| 5264 | if (!length) |
| 5265 | return false; |
| 5266 | |
| 5267 | if (name.is8Bit()) |
| 5268 | parseResult = fastParseColorInternal(rgb, name.characters8(), length, strict); |
| 5269 | else |
| 5270 | parseResult = fastParseColorInternal(rgb, name.characters16(), length, strict); |
| 5271 | |
| 5272 | if (parseResult) |
| 5273 | return true; |
| 5274 | |
| 5275 | // Try named colors. |
| 5276 | Color tc; |
| 5277 | if (!tc.setNamedColor(name)) |
| 5278 | return false; |
| 5279 | rgb = tc.rgb(); |
| 5280 | return true; |
| 5281 | } |
| 5282 | |
| 5283 | template bool CSSPropertyParser::fastParseColor(RGBA32&, const String&, bool strict); |
| 5284 | |
| 5285 | inline double CSSPropertyParser::parsedDouble(CSSParserValue *v, ReleaseParsedCalcValueCondition releaseCalc) |
| 5286 | { |
| 5287 | const double result = m_parsedCalculation ? m_parsedCalculation->doubleValue() : v->fValue; |
| 5288 | if (releaseCalc == ReleaseParsedCalcValue) |
| 5289 | m_parsedCalculation.release(); |
| 5290 | return result; |
| 5291 | } |
| 5292 | |
| 5293 | bool CSSPropertyParser::isCalculation(CSSParserValue* value) |
| 5294 | { |
| 5295 | return (value->unit == CSSParserValue::Function) |
| 5296 | && (equalIgnoringCase(value->function->name, "calc(") |
| 5297 | || equalIgnoringCase(value->function->name, "-webkit-calc(") |
| 5298 | || equalIgnoringCase(value->function->name, "-webkit-min(") |
| 5299 | || equalIgnoringCase(value->function->name, "-webkit-max(")); |
| 5300 | } |
| 5301 | |
| 5302 | inline int CSSPropertyParser::colorIntFromValue(CSSParserValue* v) |
| 5303 | { |
| 5304 | bool isPercent; |
| 5305 | |
| 5306 | if (m_parsedCalculation) |
| 5307 | isPercent = m_parsedCalculation->category() == CalcPercent; |
| 5308 | else |
| 5309 | isPercent = v->unit == CSSPrimitiveValue::CSS_PERCENTAGE; |
| 5310 | |
| 5311 | const double value = parsedDouble(v, ReleaseParsedCalcValue); |
| 5312 | |
| 5313 | if (value <= 0.0) |
| 5314 | return 0; |
| 5315 | |
| 5316 | if (isPercent) { |
| 5317 | if (value >= 100.0) |
| 5318 | return 255; |
| 5319 | return static_cast<int>(value * 256.0 / 100.0); |
| 5320 | } |
| 5321 | |
| 5322 | if (value >= 255.0) |
| 5323 | return 255; |
| 5324 | |
| 5325 | return static_cast<int>(value); |
| 5326 | } |
| 5327 | |
| 5328 | bool CSSPropertyParser::parseColorParameters(CSSParserValue* value, int* colorArray, bool parseAlpha) |
| 5329 | { |
| 5330 | CSSParserValueList* args = value->function->args.get(); |
| 5331 | CSSParserValue* v = args->current(); |
| 5332 | Units unitType = FUnknown; |
| 5333 | // Get the first value and its type |
| 5334 | if (validUnit(v, FInteger, HTMLStandardMode)) |
| 5335 | unitType = FInteger; |
| 5336 | else if (validUnit(v, FPercent, HTMLStandardMode)) |
| 5337 | unitType = FPercent; |
| 5338 | else |
| 5339 | return false; |
| 5340 | |
| 5341 | colorArray[0] = colorIntFromValue(v); |
| 5342 | for (int i = 1; i < 3; i++) { |
| 5343 | v = args->next(); |
| 5344 | if (v->unit != CSSParserValue::Operator && v->iValue != ',') |
| 5345 | return false; |
| 5346 | v = args->next(); |
| 5347 | if (!validUnit(v, unitType, HTMLStandardMode)) |
| 5348 | return false; |
| 5349 | colorArray[i] = colorIntFromValue(v); |
| 5350 | } |
| 5351 | if (parseAlpha) { |
| 5352 | v = args->next(); |
| 5353 | if (v->unit != CSSParserValue::Operator && v->iValue != ',') |
| 5354 | return false; |
| 5355 | v = args->next(); |
| 5356 | if (!validUnit(v, FNumber, HTMLStandardMode)) |
| 5357 | return false; |
| 5358 | const double value = parsedDouble(v, ReleaseParsedCalcValue); |
| 5359 | // Convert the floating pointer number of alpha to an integer in the range [0, 256), |
| 5360 | // with an equal distribution across all 256 values. |
| 5361 | colorArray[3] = static_cast<int>(max(0.0, min(1.0, value)) * nextafter(256.0, 0.0)); |
| 5362 | } |
| 5363 | return true; |
| 5364 | } |
| 5365 | |
| 5366 | // The CSS3 specification defines the format of a HSL color as |
| 5367 | // hsl(<number>, <percent>, <percent>) |
| 5368 | // and with alpha, the format is |
| 5369 | // hsla(<number>, <percent>, <percent>, <number>) |
| 5370 | // The first value, HUE, is in an angle with a value between 0 and 360 |
| 5371 | bool CSSPropertyParser::parseHSLParameters(CSSParserValue* value, double* colorArray, bool parseAlpha) |
| 5372 | { |
| 5373 | CSSParserValueList* args = value->function->args.get(); |
| 5374 | CSSParserValue* v = args->current(); |
| 5375 | // Get the first value |
| 5376 | if (!validUnit(v, FNumber, HTMLStandardMode)) |
| 5377 | return false; |
| 5378 | // normalize the Hue value and change it to be between 0 and 1.0 |
| 5379 | colorArray[0] = (((static_cast<int>(parsedDouble(v, ReleaseParsedCalcValue)) % 360) + 360) % 360) / 360.0; |
| 5380 | for (int i = 1; i < 3; i++) { |
| 5381 | v = args->next(); |
| 5382 | if (v->unit != CSSParserValue::Operator && v->iValue != ',') |
| 5383 | return false; |
| 5384 | v = args->next(); |
| 5385 | if (!validUnit(v, FPercent, HTMLStandardMode)) |
| 5386 | return false; |
| 5387 | colorArray[i] = max(0.0, min(100.0, parsedDouble(v, ReleaseParsedCalcValue))) / 100.0; // needs to be value between 0 and 1.0 |
| 5388 | } |
| 5389 | if (parseAlpha) { |
| 5390 | v = args->next(); |
| 5391 | if (v->unit != CSSParserValue::Operator && v->iValue != ',') |
| 5392 | return false; |
| 5393 | v = args->next(); |
| 5394 | if (!validUnit(v, FNumber, HTMLStandardMode)) |
| 5395 | return false; |
| 5396 | colorArray[3] = max(0.0, min(1.0, parsedDouble(v, ReleaseParsedCalcValue))); |
| 5397 | } |
| 5398 | return true; |
| 5399 | } |
| 5400 | |
| 5401 | PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPropertyParser::parseColor(CSSParserValue* value) |
| 5402 | { |
| 5403 | RGBA32 c = Color::transparent; |
| 5404 | if (!parseColorFromValue(value ? value : m_valueList->current(), c)) |
| 5405 | return nullptr; |
| 5406 | return cssValuePool().createColorValue(c); |
| 5407 | } |
| 5408 | |
| 5409 | bool CSSPropertyParser::parseColorFromValue(CSSParserValue* value, RGBA32& c) |
| 5410 | { |
| 5411 | if (inQuirksMode() && value->unit == CSSPrimitiveValue::CSS_NUMBER |
| 5412 | && value->fValue >= 0. && value->fValue < 1000000.) { |
| 5413 | String str = String::format("%06d", static_cast<int>((value->fValue+.5))); |
| 5414 | // FIXME: This should be strict parsing for SVG as well. |
| 5415 | if (!fastParseColor(c, str, !inQuirksMode())) |
| 5416 | return false; |
| 5417 | } else if (value->unit == CSSPrimitiveValue::CSS_PARSER_HEXCOLOR || |
| 5418 | value->unit == CSSPrimitiveValue::CSS_IDENT || |
| 5419 | (inQuirksMode() && value->unit == CSSPrimitiveValue::CSS_DIMENSION)) { |
| 5420 | if (!fastParseColor(c, value->string, !inQuirksMode() && value->unit == CSSPrimitiveValue::CSS_IDENT)) |
| 5421 | return false; |
| 5422 | } else if (value->unit == CSSParserValue::Function && |
| 5423 | value->function->args != 0 && |
| 5424 | value->function->args->size() == 5 /* rgb + two commas */ && |
| 5425 | equalIgnoringCase(value->function->name, "rgb(")) { |
| 5426 | int colorValues[3]; |
| 5427 | if (!parseColorParameters(value, colorValues, false)) |
| 5428 | return false; |
| 5429 | c = makeRGB(colorValues[0], colorValues[1], colorValues[2]); |
| 5430 | } else { |
| 5431 | if (value->unit == CSSParserValue::Function && |
| 5432 | value->function->args != 0 && |
| 5433 | value->function->args->size() == 7 /* rgba + three commas */ && |
| 5434 | equalIgnoringCase(value->function->name, "rgba(")) { |
| 5435 | int colorValues[4]; |
| 5436 | if (!parseColorParameters(value, colorValues, true)) |
| 5437 | return false; |
| 5438 | c = makeRGBA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]); |
| 5439 | } else if (value->unit == CSSParserValue::Function && |
| 5440 | value->function->args != 0 && |
| 5441 | value->function->args->size() == 5 /* hsl + two commas */ && |
| 5442 | equalIgnoringCase(value->function->name, "hsl(")) { |
| 5443 | double colorValues[3]; |
| 5444 | if (!parseHSLParameters(value, colorValues, false)) |
| 5445 | return false; |
| 5446 | c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], 1.0); |
| 5447 | } else if (value->unit == CSSParserValue::Function && |
| 5448 | value->function->args != 0 && |
| 5449 | value->function->args->size() == 7 /* hsla + three commas */ && |
| 5450 | equalIgnoringCase(value->function->name, "hsla(")) { |
| 5451 | double colorValues[4]; |
| 5452 | if (!parseHSLParameters(value, colorValues, true)) |
| 5453 | return false; |
| 5454 | c = makeRGBAFromHSLA(colorValues[0], colorValues[1], colorValues[2], colorValues[3]); |
| 5455 | } else |
| 5456 | return false; |
| 5457 | } |
| 5458 | |
| 5459 | return true; |
| 5460 | } |
| 5461 | |
| 5462 | // This class tracks parsing state for shadow values. If it goes out of scope (e.g., due to an early return) |
| 5463 | // without the allowBreak bit being set, then it will clean up all of the objects and destroy them. |
| 5464 | class ShadowParseContext { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5465 | STACK_ALLOCATED(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5466 | public: |
| 5467 | ShadowParseContext(CSSPropertyID prop, CSSPropertyParser* parser) |
| 5468 | : property(prop) |
| 5469 | , m_parser(parser) |
| 5470 | , allowX(true) |
| 5471 | , allowY(false) |
| 5472 | , allowBlur(false) |
| 5473 | , allowSpread(false) |
| 5474 | , allowColor(true) |
| 5475 | , allowStyle(prop == CSSPropertyWebkitBoxShadow || prop == CSSPropertyBoxShadow) |
| 5476 | , allowBreak(true) |
| 5477 | { |
| 5478 | } |
| 5479 | |
| 5480 | bool allowLength() { return allowX || allowY || allowBlur || allowSpread; } |
| 5481 | |
| 5482 | void commitValue() |
| 5483 | { |
| 5484 | // Handle the ,, case gracefully by doing nothing. |
| 5485 | if (x || y || blur || spread || color || style) { |
| 5486 | if (!values) |
| 5487 | values = CSSValueList::createCommaSeparated(); |
| 5488 | |
| 5489 | // Construct the current shadow value and add it to the list. |
| 5490 | values->append(CSSShadowValue::create(x.release(), y.release(), blur.release(), spread.release(), style.release(), color.release())); |
| 5491 | } |
| 5492 | |
| 5493 | // Now reset for the next shadow value. |
| 5494 | x = nullptr; |
| 5495 | y = nullptr; |
| 5496 | blur = nullptr; |
| 5497 | spread = nullptr; |
| 5498 | style = nullptr; |
| 5499 | color = nullptr; |
| 5500 | |
| 5501 | allowX = true; |
| 5502 | allowColor = true; |
| 5503 | allowBreak = true; |
| 5504 | allowY = false; |
| 5505 | allowBlur = false; |
| 5506 | allowSpread = false; |
| 5507 | allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow; |
| 5508 | } |
| 5509 | |
| 5510 | void commitLength(CSSParserValue* v) |
| 5511 | { |
| 5512 | RefPtrWillBeRawPtr<CSSPrimitiveValue> val = m_parser->createPrimitiveNumericValue(v); |
| 5513 | |
| 5514 | if (allowX) { |
| 5515 | x = val.release(); |
| 5516 | allowX = false; |
| 5517 | allowY = true; |
| 5518 | allowColor = false; |
| 5519 | allowStyle = false; |
| 5520 | allowBreak = false; |
| 5521 | } else if (allowY) { |
| 5522 | y = val.release(); |
| 5523 | allowY = false; |
| 5524 | allowBlur = true; |
| 5525 | allowColor = true; |
| 5526 | allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow; |
| 5527 | allowBreak = true; |
| 5528 | } else if (allowBlur) { |
| 5529 | blur = val.release(); |
| 5530 | allowBlur = false; |
| 5531 | allowSpread = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow; |
| 5532 | } else if (allowSpread) { |
| 5533 | spread = val.release(); |
| 5534 | allowSpread = false; |
| 5535 | } |
| 5536 | } |
| 5537 | |
| 5538 | void commitColor(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) |
| 5539 | { |
| 5540 | color = val; |
| 5541 | allowColor = false; |
| 5542 | if (allowX) { |
| 5543 | allowStyle = false; |
| 5544 | allowBreak = false; |
| 5545 | } else { |
| 5546 | allowBlur = false; |
| 5547 | allowSpread = false; |
| 5548 | allowStyle = property == CSSPropertyWebkitBoxShadow || property == CSSPropertyBoxShadow; |
| 5549 | } |
| 5550 | } |
| 5551 | |
| 5552 | void commitStyle(CSSParserValue* v) |
| 5553 | { |
| 5554 | style = cssValuePool().createIdentifierValue(v->id); |
| 5555 | allowStyle = false; |
| 5556 | if (allowX) |
| 5557 | allowBreak = false; |
| 5558 | else { |
| 5559 | allowBlur = false; |
| 5560 | allowSpread = false; |
| 5561 | allowColor = false; |
| 5562 | } |
| 5563 | } |
| 5564 | |
| 5565 | CSSPropertyID property; |
| 5566 | CSSPropertyParser* m_parser; |
| 5567 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5568 | RefPtrWillBeMember<CSSValueList> values; |
| 5569 | RefPtrWillBeMember<CSSPrimitiveValue> x; |
| 5570 | RefPtrWillBeMember<CSSPrimitiveValue> y; |
| 5571 | RefPtrWillBeMember<CSSPrimitiveValue> blur; |
| 5572 | RefPtrWillBeMember<CSSPrimitiveValue> spread; |
| 5573 | RefPtrWillBeMember<CSSPrimitiveValue> style; |
| 5574 | RefPtrWillBeMember<CSSPrimitiveValue> color; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5575 | |
| 5576 | bool allowX; |
| 5577 | bool allowY; |
| 5578 | bool allowBlur; |
| 5579 | bool allowSpread; |
| 5580 | bool allowColor; |
| 5581 | bool allowStyle; // inset or not. |
| 5582 | bool allowBreak; |
| 5583 | }; |
| 5584 | |
| 5585 | PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseShadow(CSSParserValueList* valueList, CSSPropertyID propId) |
| 5586 | { |
| 5587 | ShadowParseContext context(propId, this); |
| 5588 | CSSParserValue* val; |
| 5589 | while ((val = valueList->current())) { |
| 5590 | // Check for a comma break first. |
| 5591 | if (val->unit == CSSParserValue::Operator) { |
| 5592 | if (val->iValue != ',' || !context.allowBreak) { |
| 5593 | // Other operators aren't legal or we aren't done with the current shadow |
| 5594 | // value. Treat as invalid. |
| 5595 | return nullptr; |
| 5596 | } |
| 5597 | // The value is good. Commit it. |
| 5598 | context.commitValue(); |
| 5599 | } else if (validUnit(val, FLength, HTMLStandardMode)) { |
| 5600 | // We required a length and didn't get one. Invalid. |
| 5601 | if (!context.allowLength()) |
| 5602 | return nullptr; |
| 5603 | |
| 5604 | // Blur radius must be non-negative. |
| 5605 | if (context.allowBlur && !validUnit(val, FLength | FNonNeg, HTMLStandardMode)) |
| 5606 | return nullptr; |
| 5607 | |
| 5608 | // A length is allowed here. Construct the value and add it. |
| 5609 | context.commitLength(val); |
| 5610 | } else if (val->id == CSSValueInset) { |
| 5611 | if (!context.allowStyle) |
| 5612 | return nullptr; |
| 5613 | |
| 5614 | context.commitStyle(val); |
| 5615 | } else { |
| 5616 | // The only other type of value that's ok is a color value. |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5617 | RefPtrWillBeRawPtr<CSSPrimitiveValue> parsedColor = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5618 | bool isColor = ((val->id >= CSSValueAqua && val->id <= CSSValueWindowtext) || val->id == CSSValueMenu |
| 5619 | || (val->id >= CSSValueWebkitFocusRingColor && val->id <= CSSValueWebkitText && inQuirksMode()) |
| 5620 | || val->id == CSSValueCurrentcolor); |
| 5621 | if (isColor) { |
| 5622 | if (!context.allowColor) |
| 5623 | return nullptr; |
| 5624 | parsedColor = cssValuePool().createIdentifierValue(val->id); |
| 5625 | } |
| 5626 | |
| 5627 | if (!parsedColor) |
| 5628 | // It's not built-in. Try to parse it as a color. |
| 5629 | parsedColor = parseColor(val); |
| 5630 | |
| 5631 | if (!parsedColor || !context.allowColor) |
| 5632 | return nullptr; // This value is not a color or length and is invalid or |
| 5633 | // it is a color, but a color isn't allowed at this point. |
| 5634 | |
| 5635 | context.commitColor(parsedColor.release()); |
| 5636 | } |
| 5637 | |
| 5638 | valueList->next(); |
| 5639 | } |
| 5640 | |
| 5641 | if (context.allowBreak) { |
| 5642 | context.commitValue(); |
| 5643 | if (context.values && context.values->length()) |
| 5644 | return context.values.release(); |
| 5645 | } |
| 5646 | |
| 5647 | return nullptr; |
| 5648 | } |
| 5649 | |
| 5650 | bool CSSPropertyParser::parseReflect(CSSPropertyID propId, bool important) |
| 5651 | { |
| 5652 | // box-reflect: <direction> <offset> <mask> |
| 5653 | |
| 5654 | // Direction comes first. |
| 5655 | CSSParserValue* val = m_valueList->current(); |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5656 | RefPtrWillBeRawPtr<CSSPrimitiveValue> direction = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5657 | switch (val->id) { |
| 5658 | case CSSValueAbove: |
| 5659 | case CSSValueBelow: |
| 5660 | case CSSValueLeft: |
| 5661 | case CSSValueRight: |
| 5662 | direction = cssValuePool().createIdentifierValue(val->id); |
| 5663 | break; |
| 5664 | default: |
| 5665 | return false; |
| 5666 | } |
| 5667 | |
| 5668 | // The offset comes next. |
| 5669 | val = m_valueList->next(); |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5670 | RefPtrWillBeRawPtr<CSSPrimitiveValue> offset = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5671 | if (!val) |
| 5672 | offset = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PX); |
| 5673 | else { |
| 5674 | if (!validUnit(val, FLength | FPercent)) |
| 5675 | return false; |
| 5676 | offset = createPrimitiveNumericValue(val); |
| 5677 | } |
| 5678 | |
| 5679 | // Now for the mask. |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5680 | RefPtrWillBeRawPtr<CSSValue> mask = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5681 | val = m_valueList->next(); |
| 5682 | if (val) { |
| 5683 | mask = parseBorderImage(propId); |
| 5684 | if (!mask) |
| 5685 | return false; |
| 5686 | } |
| 5687 | |
| 5688 | RefPtrWillBeRawPtr<CSSReflectValue> reflectValue = CSSReflectValue::create(direction.release(), offset.release(), mask.release()); |
| 5689 | addProperty(propId, reflectValue.release(), important); |
| 5690 | m_valueList->next(); |
| 5691 | return true; |
| 5692 | } |
| 5693 | |
| 5694 | bool CSSPropertyParser::parseFlex(CSSParserValueList* args, bool important) |
| 5695 | { |
| 5696 | if (!args || !args->size() || args->size() > 3) |
| 5697 | return false; |
| 5698 | static const double unsetValue = -1; |
| 5699 | double flexGrow = unsetValue; |
| 5700 | double flexShrink = unsetValue; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5701 | RefPtrWillBeRawPtr<CSSPrimitiveValue> flexBasis = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5702 | |
| 5703 | while (CSSParserValue* arg = args->current()) { |
| 5704 | if (validUnit(arg, FNumber | FNonNeg)) { |
| 5705 | if (flexGrow == unsetValue) |
| 5706 | flexGrow = arg->fValue; |
| 5707 | else if (flexShrink == unsetValue) |
| 5708 | flexShrink = arg->fValue; |
| 5709 | else if (!arg->fValue) { |
| 5710 | // flex only allows a basis of 0 (sans units) if flex-grow and flex-shrink values have already been set. |
| 5711 | flexBasis = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PX); |
| 5712 | } else { |
| 5713 | // We only allow 3 numbers without units if the last value is 0. E.g., flex:1 1 1 is invalid. |
| 5714 | return false; |
| 5715 | } |
| 5716 | } else if (!flexBasis && (arg->id == CSSValueAuto || validUnit(arg, FLength | FPercent | FNonNeg))) |
| 5717 | flexBasis = parseValidPrimitive(arg->id, arg); |
| 5718 | else { |
| 5719 | // Not a valid arg for flex. |
| 5720 | return false; |
| 5721 | } |
| 5722 | args->next(); |
| 5723 | } |
| 5724 | |
| 5725 | if (flexGrow == unsetValue) |
| 5726 | flexGrow = 1; |
| 5727 | if (flexShrink == unsetValue) |
| 5728 | flexShrink = 1; |
| 5729 | if (!flexBasis) |
| 5730 | flexBasis = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_PX); |
| 5731 | |
| 5732 | addProperty(CSSPropertyFlexGrow, cssValuePool().createValue(clampToFloat(flexGrow), CSSPrimitiveValue::CSS_NUMBER), important); |
| 5733 | addProperty(CSSPropertyFlexShrink, cssValuePool().createValue(clampToFloat(flexShrink), CSSPrimitiveValue::CSS_NUMBER), important); |
| 5734 | addProperty(CSSPropertyFlexBasis, flexBasis, important); |
| 5735 | return true; |
| 5736 | } |
| 5737 | |
| 5738 | bool CSSPropertyParser::parseObjectPosition(bool important) |
| 5739 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5740 | RefPtrWillBeRawPtr<CSSValue> xValue = nullptr; |
| 5741 | RefPtrWillBeRawPtr<CSSValue> yValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5742 | parseFillPosition(m_valueList.get(), xValue, yValue); |
| 5743 | if (!xValue || !yValue) |
| 5744 | return false; |
| 5745 | addProperty( |
| 5746 | CSSPropertyObjectPosition, |
| 5747 | createPrimitiveValuePair(toCSSPrimitiveValue(xValue.get()), toCSSPrimitiveValue(yValue.get()), Pair::KeepIdenticalValues), |
| 5748 | important); |
| 5749 | return true; |
| 5750 | } |
| 5751 | |
| 5752 | class BorderImageParseContext { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5753 | STACK_ALLOCATED(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5754 | public: |
| 5755 | BorderImageParseContext() |
| 5756 | : m_canAdvance(false) |
| 5757 | , m_allowCommit(true) |
| 5758 | , m_allowImage(true) |
| 5759 | , m_allowImageSlice(true) |
| 5760 | , m_allowRepeat(true) |
| 5761 | , m_allowForwardSlashOperator(false) |
| 5762 | , m_requireWidth(false) |
| 5763 | , m_requireOutset(false) |
| 5764 | {} |
| 5765 | |
| 5766 | bool canAdvance() const { return m_canAdvance; } |
| 5767 | void setCanAdvance(bool canAdvance) { m_canAdvance = canAdvance; } |
| 5768 | |
| 5769 | bool allowCommit() const { return m_allowCommit; } |
| 5770 | bool allowImage() const { return m_allowImage; } |
| 5771 | bool allowImageSlice() const { return m_allowImageSlice; } |
| 5772 | bool allowRepeat() const { return m_allowRepeat; } |
| 5773 | bool allowForwardSlashOperator() const { return m_allowForwardSlashOperator; } |
| 5774 | |
| 5775 | bool requireWidth() const { return m_requireWidth; } |
| 5776 | bool requireOutset() const { return m_requireOutset; } |
| 5777 | |
| 5778 | void commitImage(PassRefPtrWillBeRawPtr<CSSValue> image) |
| 5779 | { |
| 5780 | m_image = image; |
| 5781 | m_canAdvance = true; |
| 5782 | m_allowCommit = true; |
| 5783 | m_allowImage = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false; |
| 5784 | m_allowImageSlice = !m_imageSlice; |
| 5785 | m_allowRepeat = !m_repeat; |
| 5786 | } |
| 5787 | void commitImageSlice(PassRefPtrWillBeRawPtr<CSSBorderImageSliceValue> slice) |
| 5788 | { |
| 5789 | m_imageSlice = slice; |
| 5790 | m_canAdvance = true; |
| 5791 | m_allowCommit = m_allowForwardSlashOperator = true; |
| 5792 | m_allowImageSlice = m_requireWidth = m_requireOutset = false; |
| 5793 | m_allowImage = !m_image; |
| 5794 | m_allowRepeat = !m_repeat; |
| 5795 | } |
| 5796 | void commitForwardSlashOperator() |
| 5797 | { |
| 5798 | m_canAdvance = true; |
| 5799 | m_allowCommit = m_allowImage = m_allowImageSlice = m_allowRepeat = m_allowForwardSlashOperator = false; |
| 5800 | if (!m_borderSlice) { |
| 5801 | m_requireWidth = true; |
| 5802 | m_requireOutset = false; |
| 5803 | } else { |
| 5804 | m_requireOutset = true; |
| 5805 | m_requireWidth = false; |
| 5806 | } |
| 5807 | } |
| 5808 | void commitBorderWidth(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> slice) |
| 5809 | { |
| 5810 | m_borderSlice = slice; |
| 5811 | m_canAdvance = true; |
| 5812 | m_allowCommit = m_allowForwardSlashOperator = true; |
| 5813 | m_allowImageSlice = m_requireWidth = m_requireOutset = false; |
| 5814 | m_allowImage = !m_image; |
| 5815 | m_allowRepeat = !m_repeat; |
| 5816 | } |
| 5817 | void commitBorderOutset(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> outset) |
| 5818 | { |
| 5819 | m_outset = outset; |
| 5820 | m_canAdvance = true; |
| 5821 | m_allowCommit = true; |
| 5822 | m_allowImageSlice = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false; |
| 5823 | m_allowImage = !m_image; |
| 5824 | m_allowRepeat = !m_repeat; |
| 5825 | } |
| 5826 | void commitRepeat(PassRefPtrWillBeRawPtr<CSSValue> repeat) |
| 5827 | { |
| 5828 | m_repeat = repeat; |
| 5829 | m_canAdvance = true; |
| 5830 | m_allowCommit = true; |
| 5831 | m_allowRepeat = m_allowForwardSlashOperator = m_requireWidth = m_requireOutset = false; |
| 5832 | m_allowImageSlice = !m_imageSlice; |
| 5833 | m_allowImage = !m_image; |
| 5834 | } |
| 5835 | |
| 5836 | PassRefPtrWillBeRawPtr<CSSValue> commitCSSValue() |
| 5837 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5838 | return createBorderImageValue(m_image, m_imageSlice.get(), m_borderSlice.get(), m_outset.get(), m_repeat.get()); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5839 | } |
| 5840 | |
| 5841 | void commitMaskBoxImage(CSSPropertyParser* parser, bool important) |
| 5842 | { |
| 5843 | commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageSource, parser, m_image, important); |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5844 | commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageSlice, parser, m_imageSlice.get(), important); |
| 5845 | commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageWidth, parser, m_borderSlice.get(), important); |
| 5846 | commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageOutset, parser, m_outset.get(), important); |
| 5847 | commitBorderImageProperty(CSSPropertyWebkitMaskBoxImageRepeat, parser, m_repeat.get(), important); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5848 | } |
| 5849 | |
| 5850 | void commitBorderImage(CSSPropertyParser* parser, bool important) |
| 5851 | { |
| 5852 | commitBorderImageProperty(CSSPropertyBorderImageSource, parser, m_image, important); |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5853 | commitBorderImageProperty(CSSPropertyBorderImageSlice, parser, m_imageSlice.get(), important); |
| 5854 | commitBorderImageProperty(CSSPropertyBorderImageWidth, parser, m_borderSlice.get(), important); |
| 5855 | commitBorderImageProperty(CSSPropertyBorderImageOutset, parser, m_outset.get(), important); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5856 | commitBorderImageProperty(CSSPropertyBorderImageRepeat, parser, m_repeat, important); |
| 5857 | } |
| 5858 | |
| 5859 | void commitBorderImageProperty(CSSPropertyID propId, CSSPropertyParser* parser, PassRefPtrWillBeRawPtr<CSSValue> value, bool important) |
| 5860 | { |
| 5861 | if (value) |
| 5862 | parser->addProperty(propId, value, important); |
| 5863 | else |
| 5864 | parser->addProperty(propId, cssValuePool().createImplicitInitialValue(), important, true); |
| 5865 | } |
| 5866 | |
| 5867 | static bool buildFromParser(CSSPropertyParser&, CSSPropertyID, BorderImageParseContext&); |
| 5868 | |
| 5869 | bool m_canAdvance; |
| 5870 | |
| 5871 | bool m_allowCommit; |
| 5872 | bool m_allowImage; |
| 5873 | bool m_allowImageSlice; |
| 5874 | bool m_allowRepeat; |
| 5875 | bool m_allowForwardSlashOperator; |
| 5876 | |
| 5877 | bool m_requireWidth; |
| 5878 | bool m_requireOutset; |
| 5879 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5880 | RefPtrWillBeMember<CSSValue> m_image; |
| 5881 | RefPtrWillBeMember<CSSBorderImageSliceValue> m_imageSlice; |
| 5882 | RefPtrWillBeMember<CSSPrimitiveValue> m_borderSlice; |
| 5883 | RefPtrWillBeMember<CSSPrimitiveValue> m_outset; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5884 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5885 | RefPtrWillBeMember<CSSValue> m_repeat; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5886 | }; |
| 5887 | |
| 5888 | bool BorderImageParseContext::buildFromParser(CSSPropertyParser& parser, CSSPropertyID propId, BorderImageParseContext& context) |
| 5889 | { |
| 5890 | CSSPropertyParser::ShorthandScope scope(&parser, propId); |
| 5891 | while (CSSParserValue* val = parser.m_valueList->current()) { |
| 5892 | context.setCanAdvance(false); |
| 5893 | |
| 5894 | if (!context.canAdvance() && context.allowForwardSlashOperator() && isForwardSlashOperator(val)) |
| 5895 | context.commitForwardSlashOperator(); |
| 5896 | |
| 5897 | if (!context.canAdvance() && context.allowImage()) { |
| 5898 | if (val->unit == CSSPrimitiveValue::CSS_URI) { |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 5899 | context.commitImage(parser.createCSSImageValueWithReferrer(val->string, parser.m_context.completeURL(val->string))); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5900 | } else if (isGeneratedImageValue(val)) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5901 | RefPtrWillBeRawPtr<CSSValue> value = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5902 | if (parser.parseGeneratedImage(parser.m_valueList.get(), value)) |
| 5903 | context.commitImage(value.release()); |
| 5904 | else |
| 5905 | return false; |
| 5906 | } else if (val->unit == CSSParserValue::Function && equalIgnoringCase(val->function->name, "-webkit-image-set(")) { |
| 5907 | RefPtrWillBeRawPtr<CSSValue> value = parser.parseImageSet(parser.m_valueList.get()); |
| 5908 | if (value) |
| 5909 | context.commitImage(value.release()); |
| 5910 | else |
| 5911 | return false; |
| 5912 | } else if (val->id == CSSValueNone) |
| 5913 | context.commitImage(cssValuePool().createIdentifierValue(CSSValueNone)); |
| 5914 | } |
| 5915 | |
| 5916 | if (!context.canAdvance() && context.allowImageSlice()) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5917 | RefPtrWillBeRawPtr<CSSBorderImageSliceValue> imageSlice = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5918 | if (parser.parseBorderImageSlice(propId, imageSlice)) |
| 5919 | context.commitImageSlice(imageSlice.release()); |
| 5920 | } |
| 5921 | |
| 5922 | if (!context.canAdvance() && context.allowRepeat()) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5923 | RefPtrWillBeRawPtr<CSSValue> repeat = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5924 | if (parser.parseBorderImageRepeat(repeat)) |
| 5925 | context.commitRepeat(repeat.release()); |
| 5926 | } |
| 5927 | |
| 5928 | if (!context.canAdvance() && context.requireWidth()) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5929 | RefPtrWillBeRawPtr<CSSPrimitiveValue> borderSlice = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5930 | if (parser.parseBorderImageWidth(borderSlice)) |
| 5931 | context.commitBorderWidth(borderSlice.release()); |
| 5932 | } |
| 5933 | |
| 5934 | if (!context.canAdvance() && context.requireOutset()) { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5935 | RefPtrWillBeRawPtr<CSSPrimitiveValue> borderOutset = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5936 | if (parser.parseBorderImageOutset(borderOutset)) |
| 5937 | context.commitBorderOutset(borderOutset.release()); |
| 5938 | } |
| 5939 | |
| 5940 | if (!context.canAdvance()) |
| 5941 | return false; |
| 5942 | |
| 5943 | parser.m_valueList->next(); |
| 5944 | } |
| 5945 | |
| 5946 | return context.allowCommit(); |
| 5947 | } |
| 5948 | |
| 5949 | bool CSSPropertyParser::parseBorderImageShorthand(CSSPropertyID propId, bool important) |
| 5950 | { |
| 5951 | BorderImageParseContext context; |
| 5952 | if (BorderImageParseContext::buildFromParser(*this, propId, context)) { |
| 5953 | switch (propId) { |
| 5954 | case CSSPropertyWebkitMaskBoxImage: |
| 5955 | context.commitMaskBoxImage(this, important); |
| 5956 | return true; |
| 5957 | case CSSPropertyBorderImage: |
| 5958 | context.commitBorderImage(this, important); |
| 5959 | return true; |
| 5960 | default: |
| 5961 | ASSERT_NOT_REACHED(); |
| 5962 | return false; |
| 5963 | } |
| 5964 | } |
| 5965 | return false; |
| 5966 | } |
| 5967 | |
| 5968 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseBorderImage(CSSPropertyID propId) |
| 5969 | { |
| 5970 | BorderImageParseContext context; |
| 5971 | if (BorderImageParseContext::buildFromParser(*this, propId, context)) { |
| 5972 | return context.commitCSSValue(); |
| 5973 | } |
| 5974 | return nullptr; |
| 5975 | } |
| 5976 | |
| 5977 | static bool isBorderImageRepeatKeyword(int id) |
| 5978 | { |
| 5979 | return id == CSSValueStretch || id == CSSValueRepeat || id == CSSValueSpace || id == CSSValueRound; |
| 5980 | } |
| 5981 | |
| 5982 | bool CSSPropertyParser::parseBorderImageRepeat(RefPtrWillBeRawPtr<CSSValue>& result) |
| 5983 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 5984 | RefPtrWillBeRawPtr<CSSPrimitiveValue> firstValue = nullptr; |
| 5985 | RefPtrWillBeRawPtr<CSSPrimitiveValue> secondValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 5986 | CSSParserValue* val = m_valueList->current(); |
| 5987 | if (!val) |
| 5988 | return false; |
| 5989 | if (isBorderImageRepeatKeyword(val->id)) |
| 5990 | firstValue = cssValuePool().createIdentifierValue(val->id); |
| 5991 | else |
| 5992 | return false; |
| 5993 | |
| 5994 | val = m_valueList->next(); |
| 5995 | if (val) { |
| 5996 | if (isBorderImageRepeatKeyword(val->id)) |
| 5997 | secondValue = cssValuePool().createIdentifierValue(val->id); |
| 5998 | else if (!inShorthand()) { |
| 5999 | // If we're not parsing a shorthand then we are invalid. |
| 6000 | return false; |
| 6001 | } else { |
| 6002 | // We need to rewind the value list, so that when its advanced we'll |
| 6003 | // end up back at this value. |
| 6004 | m_valueList->previous(); |
| 6005 | secondValue = firstValue; |
| 6006 | } |
| 6007 | } else |
| 6008 | secondValue = firstValue; |
| 6009 | |
| 6010 | result = createPrimitiveValuePair(firstValue, secondValue); |
| 6011 | return true; |
| 6012 | } |
| 6013 | |
| 6014 | class BorderImageSliceParseContext { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6015 | STACK_ALLOCATED(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6016 | public: |
| 6017 | BorderImageSliceParseContext(CSSPropertyParser* parser) |
| 6018 | : m_parser(parser) |
| 6019 | , m_allowNumber(true) |
| 6020 | , m_allowFill(true) |
| 6021 | , m_allowFinalCommit(false) |
| 6022 | , m_fill(false) |
| 6023 | { } |
| 6024 | |
| 6025 | bool allowNumber() const { return m_allowNumber; } |
| 6026 | bool allowFill() const { return m_allowFill; } |
| 6027 | bool allowFinalCommit() const { return m_allowFinalCommit; } |
| 6028 | CSSPrimitiveValue* top() const { return m_top.get(); } |
| 6029 | |
| 6030 | void commitNumber(CSSParserValue* v) |
| 6031 | { |
| 6032 | RefPtrWillBeRawPtr<CSSPrimitiveValue> val = m_parser->createPrimitiveNumericValue(v); |
| 6033 | if (!m_top) |
| 6034 | m_top = val; |
| 6035 | else if (!m_right) |
| 6036 | m_right = val; |
| 6037 | else if (!m_bottom) |
| 6038 | m_bottom = val; |
| 6039 | else { |
| 6040 | ASSERT(!m_left); |
| 6041 | m_left = val; |
| 6042 | } |
| 6043 | |
| 6044 | m_allowNumber = !m_left; |
| 6045 | m_allowFinalCommit = true; |
| 6046 | } |
| 6047 | |
| 6048 | void commitFill() { m_fill = true; m_allowFill = false; m_allowNumber = !m_top; } |
| 6049 | |
| 6050 | PassRefPtrWillBeRawPtr<CSSBorderImageSliceValue> commitBorderImageSlice() |
| 6051 | { |
| 6052 | // We need to clone and repeat values for any omissions. |
| 6053 | ASSERT(m_top); |
| 6054 | if (!m_right) { |
| 6055 | m_right = m_top; |
| 6056 | m_bottom = m_top; |
| 6057 | m_left = m_top; |
| 6058 | } |
| 6059 | if (!m_bottom) { |
| 6060 | m_bottom = m_top; |
| 6061 | m_left = m_right; |
| 6062 | } |
| 6063 | if (!m_left) |
| 6064 | m_left = m_right; |
| 6065 | |
| 6066 | // Now build a rect value to hold all four of our primitive values. |
| 6067 | RefPtrWillBeRawPtr<Quad> quad = Quad::create(); |
| 6068 | quad->setTop(m_top); |
| 6069 | quad->setRight(m_right); |
| 6070 | quad->setBottom(m_bottom); |
| 6071 | quad->setLeft(m_left); |
| 6072 | |
| 6073 | // Make our new border image value now. |
| 6074 | return CSSBorderImageSliceValue::create(cssValuePool().createValue(quad.release()), m_fill); |
| 6075 | } |
| 6076 | |
| 6077 | private: |
| 6078 | CSSPropertyParser* m_parser; |
| 6079 | |
| 6080 | bool m_allowNumber; |
| 6081 | bool m_allowFill; |
| 6082 | bool m_allowFinalCommit; |
| 6083 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6084 | RefPtrWillBeMember<CSSPrimitiveValue> m_top; |
| 6085 | RefPtrWillBeMember<CSSPrimitiveValue> m_right; |
| 6086 | RefPtrWillBeMember<CSSPrimitiveValue> m_bottom; |
| 6087 | RefPtrWillBeMember<CSSPrimitiveValue> m_left; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6088 | |
| 6089 | bool m_fill; |
| 6090 | }; |
| 6091 | |
| 6092 | bool CSSPropertyParser::parseBorderImageSlice(CSSPropertyID propId, RefPtrWillBeRawPtr<CSSBorderImageSliceValue>& result) |
| 6093 | { |
| 6094 | BorderImageSliceParseContext context(this); |
| 6095 | CSSParserValue* val; |
| 6096 | while ((val = m_valueList->current())) { |
| 6097 | // FIXME calc() http://webkit.org/b/16662 : calc is parsed but values are not created yet. |
| 6098 | if (context.allowNumber() && !isCalculation(val) && validUnit(val, FInteger | FNonNeg | FPercent, HTMLStandardMode)) { |
| 6099 | context.commitNumber(val); |
| 6100 | } else if (context.allowFill() && val->id == CSSValueFill) |
| 6101 | context.commitFill(); |
| 6102 | else if (!inShorthand()) { |
| 6103 | // If we're not parsing a shorthand then we are invalid. |
| 6104 | return false; |
| 6105 | } else { |
| 6106 | if (context.allowFinalCommit()) { |
| 6107 | // We're going to successfully parse, but we don't want to consume this token. |
| 6108 | m_valueList->previous(); |
| 6109 | } |
| 6110 | break; |
| 6111 | } |
| 6112 | m_valueList->next(); |
| 6113 | } |
| 6114 | |
| 6115 | if (context.allowFinalCommit()) { |
| 6116 | // FIXME: For backwards compatibility, -webkit-border-image, -webkit-mask-box-image and -webkit-box-reflect have to do a fill by default. |
| 6117 | // FIXME: What do we do with -webkit-box-reflect and -webkit-mask-box-image? Probably just have to leave them filling... |
| 6118 | if (propId == CSSPropertyWebkitBorderImage || propId == CSSPropertyWebkitMaskBoxImage || propId == CSSPropertyWebkitBoxReflect) |
| 6119 | context.commitFill(); |
| 6120 | |
| 6121 | // Need to fully commit as a single value. |
| 6122 | result = context.commitBorderImageSlice(); |
| 6123 | return true; |
| 6124 | } |
| 6125 | |
| 6126 | return false; |
| 6127 | } |
| 6128 | |
| 6129 | class BorderImageQuadParseContext { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6130 | STACK_ALLOCATED(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6131 | public: |
| 6132 | BorderImageQuadParseContext(CSSPropertyParser* parser) |
| 6133 | : m_parser(parser) |
| 6134 | , m_allowNumber(true) |
| 6135 | , m_allowFinalCommit(false) |
| 6136 | { } |
| 6137 | |
| 6138 | bool allowNumber() const { return m_allowNumber; } |
| 6139 | bool allowFinalCommit() const { return m_allowFinalCommit; } |
| 6140 | CSSPrimitiveValue* top() const { return m_top.get(); } |
| 6141 | |
| 6142 | void commitNumber(CSSParserValue* v) |
| 6143 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6144 | RefPtrWillBeRawPtr<CSSPrimitiveValue> val = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6145 | if (v->id == CSSValueAuto) |
| 6146 | val = cssValuePool().createIdentifierValue(v->id); |
| 6147 | else |
| 6148 | val = m_parser->createPrimitiveNumericValue(v); |
| 6149 | |
| 6150 | if (!m_top) |
| 6151 | m_top = val; |
| 6152 | else if (!m_right) |
| 6153 | m_right = val; |
| 6154 | else if (!m_bottom) |
| 6155 | m_bottom = val; |
| 6156 | else { |
| 6157 | ASSERT(!m_left); |
| 6158 | m_left = val; |
| 6159 | } |
| 6160 | |
| 6161 | m_allowNumber = !m_left; |
| 6162 | m_allowFinalCommit = true; |
| 6163 | } |
| 6164 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6165 | void setTop(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> val) { m_top = val; } |
| 6166 | |
| 6167 | PassRefPtrWillBeRawPtr<CSSPrimitiveValue> commitBorderImageQuad() |
| 6168 | { |
| 6169 | // We need to clone and repeat values for any omissions. |
| 6170 | ASSERT(m_top); |
| 6171 | if (!m_right) { |
| 6172 | m_right = m_top; |
| 6173 | m_bottom = m_top; |
| 6174 | m_left = m_top; |
| 6175 | } |
| 6176 | if (!m_bottom) { |
| 6177 | m_bottom = m_top; |
| 6178 | m_left = m_right; |
| 6179 | } |
| 6180 | if (!m_left) |
| 6181 | m_left = m_right; |
| 6182 | |
| 6183 | // Now build a quad value to hold all four of our primitive values. |
| 6184 | RefPtrWillBeRawPtr<Quad> quad = Quad::create(); |
| 6185 | quad->setTop(m_top); |
| 6186 | quad->setRight(m_right); |
| 6187 | quad->setBottom(m_bottom); |
| 6188 | quad->setLeft(m_left); |
| 6189 | |
| 6190 | // Make our new value now. |
| 6191 | return cssValuePool().createValue(quad.release()); |
| 6192 | } |
| 6193 | |
| 6194 | private: |
| 6195 | CSSPropertyParser* m_parser; |
| 6196 | |
| 6197 | bool m_allowNumber; |
| 6198 | bool m_allowFinalCommit; |
| 6199 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6200 | RefPtrWillBeMember<CSSPrimitiveValue> m_top; |
| 6201 | RefPtrWillBeMember<CSSPrimitiveValue> m_right; |
| 6202 | RefPtrWillBeMember<CSSPrimitiveValue> m_bottom; |
| 6203 | RefPtrWillBeMember<CSSPrimitiveValue> m_left; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6204 | }; |
| 6205 | |
| 6206 | bool CSSPropertyParser::parseBorderImageQuad(Units validUnits, RefPtrWillBeRawPtr<CSSPrimitiveValue>& result) |
| 6207 | { |
| 6208 | BorderImageQuadParseContext context(this); |
| 6209 | CSSParserValue* val; |
| 6210 | while ((val = m_valueList->current())) { |
| 6211 | if (context.allowNumber() && (validUnit(val, validUnits, HTMLStandardMode) || val->id == CSSValueAuto)) { |
| 6212 | context.commitNumber(val); |
| 6213 | } else if (!inShorthand()) { |
| 6214 | // If we're not parsing a shorthand then we are invalid. |
| 6215 | return false; |
| 6216 | } else { |
| 6217 | if (context.allowFinalCommit()) |
| 6218 | m_valueList->previous(); // The shorthand loop will advance back to this point. |
| 6219 | break; |
| 6220 | } |
| 6221 | m_valueList->next(); |
| 6222 | } |
| 6223 | |
| 6224 | if (context.allowFinalCommit()) { |
| 6225 | // Need to fully commit as a single value. |
| 6226 | result = context.commitBorderImageQuad(); |
| 6227 | return true; |
| 6228 | } |
| 6229 | return false; |
| 6230 | } |
| 6231 | |
| 6232 | bool CSSPropertyParser::parseBorderImageWidth(RefPtrWillBeRawPtr<CSSPrimitiveValue>& result) |
| 6233 | { |
| 6234 | return parseBorderImageQuad(FLength | FNumber | FNonNeg | FPercent, result); |
| 6235 | } |
| 6236 | |
| 6237 | bool CSSPropertyParser::parseBorderImageOutset(RefPtrWillBeRawPtr<CSSPrimitiveValue>& result) |
| 6238 | { |
| 6239 | return parseBorderImageQuad(FLength | FNumber | FNonNeg, result); |
| 6240 | } |
| 6241 | |
| 6242 | bool CSSPropertyParser::parseBorderRadius(CSSPropertyID propId, bool important) |
| 6243 | { |
| 6244 | unsigned num = m_valueList->size(); |
| 6245 | if (num > 9) |
| 6246 | return false; |
| 6247 | |
| 6248 | ShorthandScope scope(this, propId); |
| 6249 | RefPtrWillBeRawPtr<CSSPrimitiveValue> radii[2][4]; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6250 | #if ENABLE(OILPAN) |
| 6251 | // Zero initialize the array of raw pointers. |
| 6252 | memset(&radii, 0, sizeof(radii)); |
| 6253 | #endif |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6254 | |
| 6255 | unsigned indexAfterSlash = 0; |
| 6256 | for (unsigned i = 0; i < num; ++i) { |
| 6257 | CSSParserValue* value = m_valueList->valueAt(i); |
| 6258 | if (value->unit == CSSParserValue::Operator) { |
| 6259 | if (value->iValue != '/') |
| 6260 | return false; |
| 6261 | |
| 6262 | if (!i || indexAfterSlash || i + 1 == num || num > i + 5) |
| 6263 | return false; |
| 6264 | |
| 6265 | indexAfterSlash = i + 1; |
| 6266 | completeBorderRadii(radii[0]); |
| 6267 | continue; |
| 6268 | } |
| 6269 | |
| 6270 | if (i - indexAfterSlash >= 4) |
| 6271 | return false; |
| 6272 | |
| 6273 | if (!validUnit(value, FLength | FPercent | FNonNeg)) |
| 6274 | return false; |
| 6275 | |
| 6276 | RefPtrWillBeRawPtr<CSSPrimitiveValue> radius = createPrimitiveNumericValue(value); |
| 6277 | |
| 6278 | if (!indexAfterSlash) { |
| 6279 | radii[0][i] = radius; |
| 6280 | |
| 6281 | // Legacy syntax: -webkit-border-radius: l1 l2; is equivalent to border-radius: l1 / l2; |
| 6282 | if (num == 2 && propId == CSSPropertyWebkitBorderRadius) { |
| 6283 | indexAfterSlash = 1; |
| 6284 | completeBorderRadii(radii[0]); |
| 6285 | } |
| 6286 | } else |
| 6287 | radii[1][i - indexAfterSlash] = radius.release(); |
| 6288 | } |
| 6289 | |
| 6290 | if (!indexAfterSlash) { |
| 6291 | completeBorderRadii(radii[0]); |
| 6292 | for (unsigned i = 0; i < 4; ++i) |
| 6293 | radii[1][i] = radii[0][i]; |
| 6294 | } else |
| 6295 | completeBorderRadii(radii[1]); |
| 6296 | |
| 6297 | ImplicitScope implicitScope(this, PropertyImplicit); |
| 6298 | addProperty(CSSPropertyBorderTopLeftRadius, createPrimitiveValuePair(radii[0][0].release(), radii[1][0].release()), important); |
| 6299 | addProperty(CSSPropertyBorderTopRightRadius, createPrimitiveValuePair(radii[0][1].release(), radii[1][1].release()), important); |
| 6300 | addProperty(CSSPropertyBorderBottomRightRadius, createPrimitiveValuePair(radii[0][2].release(), radii[1][2].release()), important); |
| 6301 | addProperty(CSSPropertyBorderBottomLeftRadius, createPrimitiveValuePair(radii[0][3].release(), radii[1][3].release()), important); |
| 6302 | return true; |
| 6303 | } |
| 6304 | |
| 6305 | bool CSSPropertyParser::parseAspectRatio(bool important) |
| 6306 | { |
| 6307 | unsigned num = m_valueList->size(); |
| 6308 | if (num == 1 && m_valueList->valueAt(0)->id == CSSValueNone) { |
| 6309 | addProperty(CSSPropertyWebkitAspectRatio, cssValuePool().createIdentifierValue(CSSValueNone), important); |
| 6310 | return true; |
| 6311 | } |
| 6312 | |
| 6313 | if (num != 3) |
| 6314 | return false; |
| 6315 | |
| 6316 | CSSParserValue* lvalue = m_valueList->valueAt(0); |
| 6317 | CSSParserValue* op = m_valueList->valueAt(1); |
| 6318 | CSSParserValue* rvalue = m_valueList->valueAt(2); |
| 6319 | |
| 6320 | if (!isForwardSlashOperator(op)) |
| 6321 | return false; |
| 6322 | |
| 6323 | if (!validUnit(lvalue, FNumber | FNonNeg) || !validUnit(rvalue, FNumber | FNonNeg)) |
| 6324 | return false; |
| 6325 | |
| 6326 | if (!lvalue->fValue || !rvalue->fValue) |
| 6327 | return false; |
| 6328 | |
| 6329 | addProperty(CSSPropertyWebkitAspectRatio, CSSAspectRatioValue::create(narrowPrecisionToFloat(lvalue->fValue), narrowPrecisionToFloat(rvalue->fValue)), important); |
| 6330 | |
| 6331 | return true; |
| 6332 | } |
| 6333 | |
| 6334 | bool CSSPropertyParser::parseCounter(CSSPropertyID propId, int defaultValue, bool important) |
| 6335 | { |
| 6336 | enum { ID, VAL } state = ID; |
| 6337 | |
| 6338 | RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createCommaSeparated(); |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6339 | RefPtrWillBeRawPtr<CSSPrimitiveValue> counterName = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6340 | |
| 6341 | while (true) { |
| 6342 | CSSParserValue* val = m_valueList->current(); |
| 6343 | switch (state) { |
| 6344 | case ID: |
| 6345 | if (val && val->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 6346 | counterName = createPrimitiveStringValue(val); |
| 6347 | state = VAL; |
| 6348 | m_valueList->next(); |
| 6349 | continue; |
| 6350 | } |
| 6351 | break; |
| 6352 | case VAL: { |
| 6353 | int i = defaultValue; |
| 6354 | if (val && val->unit == CSSPrimitiveValue::CSS_NUMBER) { |
| 6355 | i = clampToInteger(val->fValue); |
| 6356 | m_valueList->next(); |
| 6357 | } |
| 6358 | |
| 6359 | list->append(createPrimitiveValuePair(counterName.release(), |
| 6360 | cssValuePool().createValue(i, CSSPrimitiveValue::CSS_NUMBER))); |
| 6361 | state = ID; |
| 6362 | continue; |
| 6363 | } |
| 6364 | } |
| 6365 | break; |
| 6366 | } |
| 6367 | |
| 6368 | if (list->length() > 0) { |
| 6369 | addProperty(propId, list.release(), important); |
| 6370 | return true; |
| 6371 | } |
| 6372 | |
| 6373 | return false; |
| 6374 | } |
| 6375 | |
| 6376 | // This should go away once we drop support for -webkit-gradient |
| 6377 | static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parseDeprecatedGradientPoint(CSSParserValue* a, bool horizontal) |
| 6378 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6379 | RefPtrWillBeRawPtr<CSSPrimitiveValue> result = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6380 | if (a->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 6381 | if ((equalIgnoringCase(a, "left") && horizontal) |
| 6382 | || (equalIgnoringCase(a, "top") && !horizontal)) |
| 6383 | result = cssValuePool().createValue(0., CSSPrimitiveValue::CSS_PERCENTAGE); |
| 6384 | else if ((equalIgnoringCase(a, "right") && horizontal) |
| 6385 | || (equalIgnoringCase(a, "bottom") && !horizontal)) |
| 6386 | result = cssValuePool().createValue(100., CSSPrimitiveValue::CSS_PERCENTAGE); |
| 6387 | else if (equalIgnoringCase(a, "center")) |
| 6388 | result = cssValuePool().createValue(50., CSSPrimitiveValue::CSS_PERCENTAGE); |
| 6389 | } else if (a->unit == CSSPrimitiveValue::CSS_NUMBER || a->unit == CSSPrimitiveValue::CSS_PERCENTAGE) |
| 6390 | result = cssValuePool().createValue(a->fValue, static_cast<CSSPrimitiveValue::UnitTypes>(a->unit)); |
| 6391 | return result; |
| 6392 | } |
| 6393 | |
| 6394 | bool parseDeprecatedGradientColorStop(CSSPropertyParser* p, CSSParserValue* a, CSSGradientColorStop& stop) |
| 6395 | { |
| 6396 | if (a->unit != CSSParserValue::Function) |
| 6397 | return false; |
| 6398 | |
| 6399 | if (!equalIgnoringCase(a->function->name, "from(") && |
| 6400 | !equalIgnoringCase(a->function->name, "to(") && |
| 6401 | !equalIgnoringCase(a->function->name, "color-stop(")) |
| 6402 | return false; |
| 6403 | |
| 6404 | CSSParserValueList* args = a->function->args.get(); |
| 6405 | if (!args) |
| 6406 | return false; |
| 6407 | |
| 6408 | if (equalIgnoringCase(a->function->name, "from(") |
| 6409 | || equalIgnoringCase(a->function->name, "to(")) { |
| 6410 | // The "from" and "to" stops expect 1 argument. |
| 6411 | if (args->size() != 1) |
| 6412 | return false; |
| 6413 | |
| 6414 | if (equalIgnoringCase(a->function->name, "from(")) |
| 6415 | stop.m_position = cssValuePool().createValue(0, CSSPrimitiveValue::CSS_NUMBER); |
| 6416 | else |
| 6417 | stop.m_position = cssValuePool().createValue(1, CSSPrimitiveValue::CSS_NUMBER); |
| 6418 | |
| 6419 | CSSValueID id = args->current()->id; |
| 6420 | if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu) |
| 6421 | stop.m_color = cssValuePool().createIdentifierValue(id); |
| 6422 | else |
| 6423 | stop.m_color = p->parseColor(args->current()); |
| 6424 | if (!stop.m_color) |
| 6425 | return false; |
| 6426 | } |
| 6427 | |
| 6428 | // The "color-stop" function expects 3 arguments. |
| 6429 | if (equalIgnoringCase(a->function->name, "color-stop(")) { |
| 6430 | if (args->size() != 3) |
| 6431 | return false; |
| 6432 | |
| 6433 | CSSParserValue* stopArg = args->current(); |
| 6434 | if (stopArg->unit == CSSPrimitiveValue::CSS_PERCENTAGE) |
| 6435 | stop.m_position = cssValuePool().createValue(stopArg->fValue / 100, CSSPrimitiveValue::CSS_NUMBER); |
| 6436 | else if (stopArg->unit == CSSPrimitiveValue::CSS_NUMBER) |
| 6437 | stop.m_position = cssValuePool().createValue(stopArg->fValue, CSSPrimitiveValue::CSS_NUMBER); |
| 6438 | else |
| 6439 | return false; |
| 6440 | |
| 6441 | stopArg = args->next(); |
| 6442 | if (stopArg->unit != CSSParserValue::Operator || stopArg->iValue != ',') |
| 6443 | return false; |
| 6444 | |
| 6445 | stopArg = args->next(); |
| 6446 | CSSValueID id = stopArg->id; |
| 6447 | if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu) |
| 6448 | stop.m_color = cssValuePool().createIdentifierValue(id); |
| 6449 | else |
| 6450 | stop.m_color = p->parseColor(stopArg); |
| 6451 | if (!stop.m_color) |
| 6452 | return false; |
| 6453 | } |
| 6454 | |
| 6455 | return true; |
| 6456 | } |
| 6457 | |
| 6458 | bool CSSPropertyParser::parseDeprecatedGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient) |
| 6459 | { |
| 6460 | // Walk the arguments. |
| 6461 | CSSParserValueList* args = valueList->current()->function->args.get(); |
| 6462 | if (!args || args->size() == 0) |
| 6463 | return false; |
| 6464 | |
| 6465 | // The first argument is the gradient type. It is an identifier. |
| 6466 | CSSGradientType gradientType; |
| 6467 | CSSParserValue* a = args->current(); |
| 6468 | if (!a || a->unit != CSSPrimitiveValue::CSS_IDENT) |
| 6469 | return false; |
| 6470 | if (equalIgnoringCase(a, "linear")) |
| 6471 | gradientType = CSSDeprecatedLinearGradient; |
| 6472 | else if (equalIgnoringCase(a, "radial")) |
| 6473 | gradientType = CSSDeprecatedRadialGradient; |
| 6474 | else |
| 6475 | return false; |
| 6476 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6477 | RefPtrWillBeRawPtr<CSSGradientValue> result = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6478 | switch (gradientType) { |
| 6479 | case CSSDeprecatedLinearGradient: |
| 6480 | result = CSSLinearGradientValue::create(NonRepeating, gradientType); |
| 6481 | break; |
| 6482 | case CSSDeprecatedRadialGradient: |
| 6483 | result = CSSRadialGradientValue::create(NonRepeating, gradientType); |
| 6484 | break; |
| 6485 | default: |
| 6486 | // The rest of the gradient types shouldn't appear here. |
| 6487 | ASSERT_NOT_REACHED(); |
| 6488 | } |
| 6489 | |
| 6490 | // Comma. |
| 6491 | a = args->next(); |
| 6492 | if (!isComma(a)) |
| 6493 | return false; |
| 6494 | |
| 6495 | // Next comes the starting point for the gradient as an x y pair. There is no |
| 6496 | // comma between the x and the y values. |
| 6497 | // First X. It can be left, right, number or percent. |
| 6498 | a = args->next(); |
| 6499 | if (!a) |
| 6500 | return false; |
| 6501 | RefPtrWillBeRawPtr<CSSPrimitiveValue> point = parseDeprecatedGradientPoint(a, true); |
| 6502 | if (!point) |
| 6503 | return false; |
| 6504 | result->setFirstX(point.release()); |
| 6505 | |
| 6506 | // First Y. It can be top, bottom, number or percent. |
| 6507 | a = args->next(); |
| 6508 | if (!a) |
| 6509 | return false; |
| 6510 | point = parseDeprecatedGradientPoint(a, false); |
| 6511 | if (!point) |
| 6512 | return false; |
| 6513 | result->setFirstY(point.release()); |
| 6514 | |
| 6515 | // Comma after the first point. |
| 6516 | a = args->next(); |
| 6517 | if (!isComma(a)) |
| 6518 | return false; |
| 6519 | |
| 6520 | // For radial gradients only, we now expect a numeric radius. |
| 6521 | if (gradientType == CSSDeprecatedRadialGradient) { |
| 6522 | a = args->next(); |
| 6523 | if (!a || a->unit != CSSPrimitiveValue::CSS_NUMBER) |
| 6524 | return false; |
| 6525 | toCSSRadialGradientValue(result.get())->setFirstRadius(createPrimitiveNumericValue(a)); |
| 6526 | |
| 6527 | // Comma after the first radius. |
| 6528 | a = args->next(); |
| 6529 | if (!isComma(a)) |
| 6530 | return false; |
| 6531 | } |
| 6532 | |
| 6533 | // Next is the ending point for the gradient as an x, y pair. |
| 6534 | // Second X. It can be left, right, number or percent. |
| 6535 | a = args->next(); |
| 6536 | if (!a) |
| 6537 | return false; |
| 6538 | point = parseDeprecatedGradientPoint(a, true); |
| 6539 | if (!point) |
| 6540 | return false; |
| 6541 | result->setSecondX(point.release()); |
| 6542 | |
| 6543 | // Second Y. It can be top, bottom, number or percent. |
| 6544 | a = args->next(); |
| 6545 | if (!a) |
| 6546 | return false; |
| 6547 | point = parseDeprecatedGradientPoint(a, false); |
| 6548 | if (!point) |
| 6549 | return false; |
| 6550 | result->setSecondY(point.release()); |
| 6551 | |
| 6552 | // For radial gradients only, we now expect the second radius. |
| 6553 | if (gradientType == CSSDeprecatedRadialGradient) { |
| 6554 | // Comma after the second point. |
| 6555 | a = args->next(); |
| 6556 | if (!isComma(a)) |
| 6557 | return false; |
| 6558 | |
| 6559 | a = args->next(); |
| 6560 | if (!a || a->unit != CSSPrimitiveValue::CSS_NUMBER) |
| 6561 | return false; |
| 6562 | toCSSRadialGradientValue(result.get())->setSecondRadius(createPrimitiveNumericValue(a)); |
| 6563 | } |
| 6564 | |
| 6565 | // We now will accept any number of stops (0 or more). |
| 6566 | a = args->next(); |
| 6567 | while (a) { |
| 6568 | // Look for the comma before the next stop. |
| 6569 | if (!isComma(a)) |
| 6570 | return false; |
| 6571 | |
| 6572 | // Now examine the stop itself. |
| 6573 | a = args->next(); |
| 6574 | if (!a) |
| 6575 | return false; |
| 6576 | |
| 6577 | // The function name needs to be one of "from", "to", or "color-stop." |
| 6578 | CSSGradientColorStop stop; |
| 6579 | if (!parseDeprecatedGradientColorStop(this, a, stop)) |
| 6580 | return false; |
| 6581 | result->addStop(stop); |
| 6582 | |
| 6583 | // Advance |
| 6584 | a = args->next(); |
| 6585 | } |
| 6586 | |
| 6587 | gradient = result.release(); |
| 6588 | return true; |
| 6589 | } |
| 6590 | |
| 6591 | static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> valueFromSideKeyword(CSSParserValue* a, bool& isHorizontal) |
| 6592 | { |
| 6593 | if (a->unit != CSSPrimitiveValue::CSS_IDENT) |
| 6594 | return nullptr; |
| 6595 | |
| 6596 | switch (a->id) { |
| 6597 | case CSSValueLeft: |
| 6598 | case CSSValueRight: |
| 6599 | isHorizontal = true; |
| 6600 | break; |
| 6601 | case CSSValueTop: |
| 6602 | case CSSValueBottom: |
| 6603 | isHorizontal = false; |
| 6604 | break; |
| 6605 | default: |
| 6606 | return nullptr; |
| 6607 | } |
| 6608 | return cssValuePool().createIdentifierValue(a->id); |
| 6609 | } |
| 6610 | |
| 6611 | PassRefPtrWillBeRawPtr<CSSPrimitiveValue> parseGradientColorOrKeyword(CSSPropertyParser* p, CSSParserValue* value) |
| 6612 | { |
| 6613 | CSSValueID id = value->id; |
| 6614 | if (id == CSSValueWebkitText || (id >= CSSValueAqua && id <= CSSValueWindowtext) || id == CSSValueMenu || id == CSSValueCurrentcolor) |
| 6615 | return cssValuePool().createIdentifierValue(id); |
| 6616 | |
| 6617 | return p->parseColor(value); |
| 6618 | } |
| 6619 | |
| 6620 | bool CSSPropertyParser::parseDeprecatedLinearGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient, CSSGradientRepeat repeating) |
| 6621 | { |
| 6622 | RefPtrWillBeRawPtr<CSSLinearGradientValue> result = CSSLinearGradientValue::create(repeating, CSSPrefixedLinearGradient); |
| 6623 | |
| 6624 | // Walk the arguments. |
| 6625 | CSSParserValueList* args = valueList->current()->function->args.get(); |
| 6626 | if (!args || !args->size()) |
| 6627 | return false; |
| 6628 | |
| 6629 | CSSParserValue* a = args->current(); |
| 6630 | if (!a) |
| 6631 | return false; |
| 6632 | |
| 6633 | bool expectComma = false; |
| 6634 | // Look for angle. |
| 6635 | if (validUnit(a, FAngle, HTMLStandardMode)) { |
| 6636 | result->setAngle(createPrimitiveNumericValue(a)); |
| 6637 | |
| 6638 | args->next(); |
| 6639 | expectComma = true; |
| 6640 | } else { |
| 6641 | // Look one or two optional keywords that indicate a side or corner. |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6642 | RefPtrWillBeRawPtr<CSSPrimitiveValue> startX = nullptr; |
| 6643 | RefPtrWillBeRawPtr<CSSPrimitiveValue> startY = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6644 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6645 | RefPtrWillBeRawPtr<CSSPrimitiveValue> location = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6646 | bool isHorizontal = false; |
| 6647 | if ((location = valueFromSideKeyword(a, isHorizontal))) { |
| 6648 | if (isHorizontal) |
| 6649 | startX = location; |
| 6650 | else |
| 6651 | startY = location; |
| 6652 | |
| 6653 | if ((a = args->next())) { |
| 6654 | if ((location = valueFromSideKeyword(a, isHorizontal))) { |
| 6655 | if (isHorizontal) { |
| 6656 | if (startX) |
| 6657 | return false; |
| 6658 | startX = location; |
| 6659 | } else { |
| 6660 | if (startY) |
| 6661 | return false; |
| 6662 | startY = location; |
| 6663 | } |
| 6664 | |
| 6665 | args->next(); |
| 6666 | } |
| 6667 | } |
| 6668 | |
| 6669 | expectComma = true; |
| 6670 | } |
| 6671 | |
| 6672 | if (!startX && !startY) |
| 6673 | startY = cssValuePool().createIdentifierValue(CSSValueTop); |
| 6674 | |
| 6675 | result->setFirstX(startX.release()); |
| 6676 | result->setFirstY(startY.release()); |
| 6677 | } |
| 6678 | |
| 6679 | if (!parseGradientColorStops(args, result.get(), expectComma)) |
| 6680 | return false; |
| 6681 | |
| 6682 | if (!result->stopCount()) |
| 6683 | return false; |
| 6684 | |
| 6685 | gradient = result.release(); |
| 6686 | return true; |
| 6687 | } |
| 6688 | |
| 6689 | bool CSSPropertyParser::parseDeprecatedRadialGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient, CSSGradientRepeat repeating) |
| 6690 | { |
| 6691 | RefPtrWillBeRawPtr<CSSRadialGradientValue> result = CSSRadialGradientValue::create(repeating, CSSPrefixedRadialGradient); |
| 6692 | |
| 6693 | // Walk the arguments. |
| 6694 | CSSParserValueList* args = valueList->current()->function->args.get(); |
| 6695 | if (!args || !args->size()) |
| 6696 | return false; |
| 6697 | |
| 6698 | CSSParserValue* a = args->current(); |
| 6699 | if (!a) |
| 6700 | return false; |
| 6701 | |
| 6702 | bool expectComma = false; |
| 6703 | |
| 6704 | // Optional background-position |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6705 | RefPtrWillBeRawPtr<CSSValue> centerX = nullptr; |
| 6706 | RefPtrWillBeRawPtr<CSSValue> centerY = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6707 | // parse2ValuesFillPosition advances the args next pointer. |
| 6708 | parse2ValuesFillPosition(args, centerX, centerY); |
| 6709 | a = args->current(); |
| 6710 | if (!a) |
| 6711 | return false; |
| 6712 | |
| 6713 | if (centerX || centerY) { |
| 6714 | // Comma |
| 6715 | if (!isComma(a)) |
| 6716 | return false; |
| 6717 | |
| 6718 | a = args->next(); |
| 6719 | if (!a) |
| 6720 | return false; |
| 6721 | } |
| 6722 | |
| 6723 | result->setFirstX(toCSSPrimitiveValue(centerX.get())); |
| 6724 | result->setSecondX(toCSSPrimitiveValue(centerX.get())); |
| 6725 | // CSS3 radial gradients always share the same start and end point. |
| 6726 | result->setFirstY(toCSSPrimitiveValue(centerY.get())); |
| 6727 | result->setSecondY(toCSSPrimitiveValue(centerY.get())); |
| 6728 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6729 | RefPtrWillBeRawPtr<CSSPrimitiveValue> shapeValue = nullptr; |
| 6730 | RefPtrWillBeRawPtr<CSSPrimitiveValue> sizeValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6731 | |
| 6732 | // Optional shape and/or size in any order. |
| 6733 | for (int i = 0; i < 2; ++i) { |
| 6734 | if (a->unit != CSSPrimitiveValue::CSS_IDENT) |
| 6735 | break; |
| 6736 | |
| 6737 | bool foundValue = false; |
| 6738 | switch (a->id) { |
| 6739 | case CSSValueCircle: |
| 6740 | case CSSValueEllipse: |
| 6741 | shapeValue = cssValuePool().createIdentifierValue(a->id); |
| 6742 | foundValue = true; |
| 6743 | break; |
| 6744 | case CSSValueClosestSide: |
| 6745 | case CSSValueClosestCorner: |
| 6746 | case CSSValueFarthestSide: |
| 6747 | case CSSValueFarthestCorner: |
| 6748 | case CSSValueContain: |
| 6749 | case CSSValueCover: |
| 6750 | sizeValue = cssValuePool().createIdentifierValue(a->id); |
| 6751 | foundValue = true; |
| 6752 | break; |
| 6753 | default: |
| 6754 | break; |
| 6755 | } |
| 6756 | |
| 6757 | if (foundValue) { |
| 6758 | a = args->next(); |
| 6759 | if (!a) |
| 6760 | return false; |
| 6761 | |
| 6762 | expectComma = true; |
| 6763 | } |
| 6764 | } |
| 6765 | |
| 6766 | result->setShape(shapeValue); |
| 6767 | result->setSizingBehavior(sizeValue); |
| 6768 | |
| 6769 | // Or, two lengths or percentages |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6770 | RefPtrWillBeRawPtr<CSSPrimitiveValue> horizontalSize = nullptr; |
| 6771 | RefPtrWillBeRawPtr<CSSPrimitiveValue> verticalSize = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6772 | |
| 6773 | if (!shapeValue && !sizeValue) { |
| 6774 | if (validUnit(a, FLength | FPercent)) { |
| 6775 | horizontalSize = createPrimitiveNumericValue(a); |
| 6776 | a = args->next(); |
| 6777 | if (!a) |
| 6778 | return false; |
| 6779 | |
| 6780 | expectComma = true; |
| 6781 | } |
| 6782 | |
| 6783 | if (validUnit(a, FLength | FPercent)) { |
| 6784 | verticalSize = createPrimitiveNumericValue(a); |
| 6785 | |
| 6786 | a = args->next(); |
| 6787 | if (!a) |
| 6788 | return false; |
| 6789 | expectComma = true; |
| 6790 | } |
| 6791 | } |
| 6792 | |
| 6793 | // Must have neither or both. |
| 6794 | if (!horizontalSize != !verticalSize) |
| 6795 | return false; |
| 6796 | |
| 6797 | result->setEndHorizontalSize(horizontalSize); |
| 6798 | result->setEndVerticalSize(verticalSize); |
| 6799 | |
| 6800 | if (!parseGradientColorStops(args, result.get(), expectComma)) |
| 6801 | return false; |
| 6802 | |
| 6803 | gradient = result.release(); |
| 6804 | return true; |
| 6805 | } |
| 6806 | |
| 6807 | bool CSSPropertyParser::parseLinearGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient, CSSGradientRepeat repeating) |
| 6808 | { |
| 6809 | RefPtrWillBeRawPtr<CSSLinearGradientValue> result = CSSLinearGradientValue::create(repeating, CSSLinearGradient); |
| 6810 | |
| 6811 | CSSParserValueList* args = valueList->current()->function->args.get(); |
| 6812 | if (!args || !args->size()) |
| 6813 | return false; |
| 6814 | |
| 6815 | CSSParserValue* a = args->current(); |
| 6816 | if (!a) |
| 6817 | return false; |
| 6818 | |
| 6819 | bool expectComma = false; |
| 6820 | // Look for angle. |
| 6821 | if (validUnit(a, FAngle, HTMLStandardMode)) { |
| 6822 | result->setAngle(createPrimitiveNumericValue(a)); |
| 6823 | |
| 6824 | args->next(); |
| 6825 | expectComma = true; |
| 6826 | } else if (a->unit == CSSPrimitiveValue::CSS_IDENT && equalIgnoringCase(a, "to")) { |
| 6827 | // to [ [left | right] || [top | bottom] ] |
| 6828 | a = args->next(); |
| 6829 | if (!a) |
| 6830 | return false; |
| 6831 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6832 | RefPtrWillBeRawPtr<CSSPrimitiveValue> endX = nullptr; |
| 6833 | RefPtrWillBeRawPtr<CSSPrimitiveValue> endY = nullptr; |
| 6834 | RefPtrWillBeRawPtr<CSSPrimitiveValue> location = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6835 | bool isHorizontal = false; |
| 6836 | |
| 6837 | location = valueFromSideKeyword(a, isHorizontal); |
| 6838 | if (!location) |
| 6839 | return false; |
| 6840 | |
| 6841 | if (isHorizontal) |
| 6842 | endX = location; |
| 6843 | else |
| 6844 | endY = location; |
| 6845 | |
| 6846 | a = args->next(); |
| 6847 | if (!a) |
| 6848 | return false; |
| 6849 | |
| 6850 | location = valueFromSideKeyword(a, isHorizontal); |
| 6851 | if (location) { |
| 6852 | if (isHorizontal) { |
| 6853 | if (endX) |
| 6854 | return false; |
| 6855 | endX = location; |
| 6856 | } else { |
| 6857 | if (endY) |
| 6858 | return false; |
| 6859 | endY = location; |
| 6860 | } |
| 6861 | |
| 6862 | args->next(); |
| 6863 | } |
| 6864 | |
| 6865 | expectComma = true; |
| 6866 | result->setFirstX(endX.release()); |
| 6867 | result->setFirstY(endY.release()); |
| 6868 | } |
| 6869 | |
| 6870 | if (!parseGradientColorStops(args, result.get(), expectComma)) |
| 6871 | return false; |
| 6872 | |
| 6873 | if (!result->stopCount()) |
| 6874 | return false; |
| 6875 | |
| 6876 | gradient = result.release(); |
| 6877 | return true; |
| 6878 | } |
| 6879 | |
| 6880 | bool CSSPropertyParser::parseRadialGradient(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& gradient, CSSGradientRepeat repeating) |
| 6881 | { |
| 6882 | RefPtrWillBeRawPtr<CSSRadialGradientValue> result = CSSRadialGradientValue::create(repeating, CSSRadialGradient); |
| 6883 | |
| 6884 | CSSParserValueList* args = valueList->current()->function->args.get(); |
| 6885 | if (!args || !args->size()) |
| 6886 | return false; |
| 6887 | |
| 6888 | CSSParserValue* a = args->current(); |
| 6889 | if (!a) |
| 6890 | return false; |
| 6891 | |
| 6892 | bool expectComma = false; |
| 6893 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6894 | RefPtrWillBeRawPtr<CSSPrimitiveValue> shapeValue = nullptr; |
| 6895 | RefPtrWillBeRawPtr<CSSPrimitiveValue> sizeValue = nullptr; |
| 6896 | RefPtrWillBeRawPtr<CSSPrimitiveValue> horizontalSize = nullptr; |
| 6897 | RefPtrWillBeRawPtr<CSSPrimitiveValue> verticalSize = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6898 | |
| 6899 | // First part of grammar, the size/shape clause: |
| 6900 | // [ circle || <length> ] | |
| 6901 | // [ ellipse || [ <length> | <percentage> ]{2} ] | |
| 6902 | // [ [ circle | ellipse] || <size-keyword> ] |
| 6903 | for (int i = 0; i < 3; ++i) { |
| 6904 | if (a->unit == CSSPrimitiveValue::CSS_IDENT) { |
| 6905 | bool badIdent = false; |
| 6906 | switch (a->id) { |
| 6907 | case CSSValueCircle: |
| 6908 | case CSSValueEllipse: |
| 6909 | if (shapeValue) |
| 6910 | return false; |
| 6911 | shapeValue = cssValuePool().createIdentifierValue(a->id); |
| 6912 | break; |
| 6913 | case CSSValueClosestSide: |
| 6914 | case CSSValueClosestCorner: |
| 6915 | case CSSValueFarthestSide: |
| 6916 | case CSSValueFarthestCorner: |
| 6917 | if (sizeValue || horizontalSize) |
| 6918 | return false; |
| 6919 | sizeValue = cssValuePool().createIdentifierValue(a->id); |
| 6920 | break; |
| 6921 | default: |
| 6922 | badIdent = true; |
| 6923 | } |
| 6924 | |
| 6925 | if (badIdent) |
| 6926 | break; |
| 6927 | |
| 6928 | a = args->next(); |
| 6929 | if (!a) |
| 6930 | return false; |
| 6931 | } else if (validUnit(a, FLength | FPercent)) { |
| 6932 | |
| 6933 | if (sizeValue || horizontalSize) |
| 6934 | return false; |
| 6935 | horizontalSize = createPrimitiveNumericValue(a); |
| 6936 | |
| 6937 | a = args->next(); |
| 6938 | if (!a) |
| 6939 | return false; |
| 6940 | |
| 6941 | if (validUnit(a, FLength | FPercent)) { |
| 6942 | verticalSize = createPrimitiveNumericValue(a); |
| 6943 | ++i; |
| 6944 | a = args->next(); |
| 6945 | if (!a) |
| 6946 | return false; |
| 6947 | } |
| 6948 | } else |
| 6949 | break; |
| 6950 | } |
| 6951 | |
| 6952 | // You can specify size as a keyword or a length/percentage, not both. |
| 6953 | if (sizeValue && horizontalSize) |
| 6954 | return false; |
| 6955 | // Circles must have 0 or 1 lengths. |
| 6956 | if (shapeValue && shapeValue->getValueID() == CSSValueCircle && verticalSize) |
| 6957 | return false; |
| 6958 | // Ellipses must have 0 or 2 length/percentages. |
| 6959 | if (shapeValue && shapeValue->getValueID() == CSSValueEllipse && horizontalSize && !verticalSize) |
| 6960 | return false; |
| 6961 | // If there's only one size, it must be a length. |
| 6962 | if (!verticalSize && horizontalSize && horizontalSize->isPercentage()) |
| 6963 | return false; |
| 6964 | |
| 6965 | result->setShape(shapeValue); |
| 6966 | result->setSizingBehavior(sizeValue); |
| 6967 | result->setEndHorizontalSize(horizontalSize); |
| 6968 | result->setEndVerticalSize(verticalSize); |
| 6969 | |
| 6970 | // Second part of grammar, the center-position clause: |
| 6971 | // at <position> |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 6972 | RefPtrWillBeRawPtr<CSSValue> centerX = nullptr; |
| 6973 | RefPtrWillBeRawPtr<CSSValue> centerY = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 6974 | if (a->unit == CSSPrimitiveValue::CSS_IDENT && equalIgnoringCase(a, "at")) { |
| 6975 | a = args->next(); |
| 6976 | if (!a) |
| 6977 | return false; |
| 6978 | |
| 6979 | parseFillPosition(args, centerX, centerY); |
| 6980 | if (!(centerX && centerY)) |
| 6981 | return false; |
| 6982 | |
| 6983 | a = args->current(); |
| 6984 | if (!a) |
| 6985 | return false; |
| 6986 | result->setFirstX(toCSSPrimitiveValue(centerX.get())); |
| 6987 | result->setFirstY(toCSSPrimitiveValue(centerY.get())); |
| 6988 | // Right now, CSS radial gradients have the same start and end centers. |
| 6989 | result->setSecondX(toCSSPrimitiveValue(centerX.get())); |
| 6990 | result->setSecondY(toCSSPrimitiveValue(centerY.get())); |
| 6991 | } |
| 6992 | |
| 6993 | if (shapeValue || sizeValue || horizontalSize || centerX || centerY) |
| 6994 | expectComma = true; |
| 6995 | |
| 6996 | if (!parseGradientColorStops(args, result.get(), expectComma)) |
| 6997 | return false; |
| 6998 | |
| 6999 | gradient = result.release(); |
| 7000 | return true; |
| 7001 | } |
| 7002 | |
| 7003 | bool CSSPropertyParser::parseGradientColorStops(CSSParserValueList* valueList, CSSGradientValue* gradient, bool expectComma) |
| 7004 | { |
| 7005 | CSSParserValue* a = valueList->current(); |
| 7006 | |
| 7007 | // Now look for color stops. |
| 7008 | while (a) { |
| 7009 | // Look for the comma before the next stop. |
| 7010 | if (expectComma) { |
| 7011 | if (!isComma(a)) |
| 7012 | return false; |
| 7013 | |
| 7014 | a = valueList->next(); |
| 7015 | if (!a) |
| 7016 | return false; |
| 7017 | } |
| 7018 | |
| 7019 | // <color-stop> = <color> [ <percentage> | <length> ]? |
| 7020 | CSSGradientColorStop stop; |
| 7021 | stop.m_color = parseGradientColorOrKeyword(this, a); |
| 7022 | if (!stop.m_color) |
| 7023 | return false; |
| 7024 | |
| 7025 | a = valueList->next(); |
| 7026 | if (a) { |
| 7027 | if (validUnit(a, FLength | FPercent)) { |
| 7028 | stop.m_position = createPrimitiveNumericValue(a); |
| 7029 | a = valueList->next(); |
| 7030 | } |
| 7031 | } |
| 7032 | |
| 7033 | gradient->addStop(stop); |
| 7034 | expectComma = true; |
| 7035 | } |
| 7036 | |
| 7037 | // Must have 2 or more stops to be valid. |
| 7038 | return gradient->stopCount() >= 2; |
| 7039 | } |
| 7040 | |
| 7041 | bool CSSPropertyParser::parseGeneratedImage(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& value) |
| 7042 | { |
| 7043 | CSSParserValue* val = valueList->current(); |
| 7044 | |
| 7045 | if (val->unit != CSSParserValue::Function) |
| 7046 | return false; |
| 7047 | |
| 7048 | if (equalIgnoringCase(val->function->name, "-webkit-gradient(")) { |
| 7049 | // FIXME: This should send a deprecation message. |
| 7050 | if (m_context.useCounter()) |
| 7051 | m_context.useCounter()->count(UseCounter::DeprecatedWebKitGradient); |
| 7052 | return parseDeprecatedGradient(valueList, value); |
| 7053 | } |
| 7054 | |
| 7055 | if (equalIgnoringCase(val->function->name, "-webkit-linear-gradient(")) { |
| 7056 | // FIXME: This should send a deprecation message. |
| 7057 | if (m_context.useCounter()) |
| 7058 | m_context.useCounter()->count(UseCounter::DeprecatedWebKitLinearGradient); |
| 7059 | return parseDeprecatedLinearGradient(valueList, value, NonRepeating); |
| 7060 | } |
| 7061 | |
| 7062 | if (equalIgnoringCase(val->function->name, "linear-gradient(")) |
| 7063 | return parseLinearGradient(valueList, value, NonRepeating); |
| 7064 | |
| 7065 | if (equalIgnoringCase(val->function->name, "-webkit-repeating-linear-gradient(")) { |
| 7066 | // FIXME: This should send a deprecation message. |
| 7067 | if (m_context.useCounter()) |
| 7068 | m_context.useCounter()->count(UseCounter::DeprecatedWebKitRepeatingLinearGradient); |
| 7069 | return parseDeprecatedLinearGradient(valueList, value, Repeating); |
| 7070 | } |
| 7071 | |
| 7072 | if (equalIgnoringCase(val->function->name, "repeating-linear-gradient(")) |
| 7073 | return parseLinearGradient(valueList, value, Repeating); |
| 7074 | |
| 7075 | if (equalIgnoringCase(val->function->name, "-webkit-radial-gradient(")) { |
| 7076 | // FIXME: This should send a deprecation message. |
| 7077 | if (m_context.useCounter()) |
| 7078 | m_context.useCounter()->count(UseCounter::DeprecatedWebKitRadialGradient); |
| 7079 | return parseDeprecatedRadialGradient(valueList, value, NonRepeating); |
| 7080 | } |
| 7081 | |
| 7082 | if (equalIgnoringCase(val->function->name, "radial-gradient(")) |
| 7083 | return parseRadialGradient(valueList, value, NonRepeating); |
| 7084 | |
| 7085 | if (equalIgnoringCase(val->function->name, "-webkit-repeating-radial-gradient(")) { |
| 7086 | if (m_context.useCounter()) |
| 7087 | m_context.useCounter()->count(UseCounter::DeprecatedWebKitRepeatingRadialGradient); |
| 7088 | return parseDeprecatedRadialGradient(valueList, value, Repeating); |
| 7089 | } |
| 7090 | |
| 7091 | if (equalIgnoringCase(val->function->name, "repeating-radial-gradient(")) |
| 7092 | return parseRadialGradient(valueList, value, Repeating); |
| 7093 | |
| 7094 | if (equalIgnoringCase(val->function->name, "-webkit-canvas(")) |
| 7095 | return parseCanvas(valueList, value); |
| 7096 | |
| 7097 | if (equalIgnoringCase(val->function->name, "-webkit-cross-fade(")) |
| 7098 | return parseCrossfade(valueList, value); |
| 7099 | |
| 7100 | return false; |
| 7101 | } |
| 7102 | |
| 7103 | bool CSSPropertyParser::parseCrossfade(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& crossfade) |
| 7104 | { |
| 7105 | // Walk the arguments. |
| 7106 | CSSParserValueList* args = valueList->current()->function->args.get(); |
| 7107 | if (!args || args->size() != 5) |
| 7108 | return false; |
| 7109 | CSSParserValue* a = args->current(); |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 7110 | RefPtrWillBeRawPtr<CSSValue> fromImageValue = nullptr; |
| 7111 | RefPtrWillBeRawPtr<CSSValue> toImageValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7112 | |
| 7113 | // The first argument is the "from" image. It is a fill image. |
| 7114 | if (!a || !parseFillImage(args, fromImageValue)) |
| 7115 | return false; |
| 7116 | a = args->next(); |
| 7117 | |
| 7118 | // Skip a comma |
| 7119 | if (!isComma(a)) |
| 7120 | return false; |
| 7121 | a = args->next(); |
| 7122 | |
| 7123 | // The second argument is the "to" image. It is a fill image. |
| 7124 | if (!a || !parseFillImage(args, toImageValue)) |
| 7125 | return false; |
| 7126 | a = args->next(); |
| 7127 | |
| 7128 | // Skip a comma |
| 7129 | if (!isComma(a)) |
| 7130 | return false; |
| 7131 | a = args->next(); |
| 7132 | |
| 7133 | // The third argument is the crossfade value. It is a percentage or a fractional number. |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 7134 | RefPtrWillBeRawPtr<CSSPrimitiveValue> percentage = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7135 | if (!a) |
| 7136 | return false; |
| 7137 | |
| 7138 | if (a->unit == CSSPrimitiveValue::CSS_PERCENTAGE) |
| 7139 | percentage = cssValuePool().createValue(clampTo<double>(a->fValue / 100, 0, 1), CSSPrimitiveValue::CSS_NUMBER); |
| 7140 | else if (a->unit == CSSPrimitiveValue::CSS_NUMBER) |
| 7141 | percentage = cssValuePool().createValue(clampTo<double>(a->fValue, 0, 1), CSSPrimitiveValue::CSS_NUMBER); |
| 7142 | else |
| 7143 | return false; |
| 7144 | |
| 7145 | RefPtrWillBeRawPtr<CSSCrossfadeValue> result = CSSCrossfadeValue::create(fromImageValue, toImageValue); |
| 7146 | result->setPercentage(percentage); |
| 7147 | |
| 7148 | crossfade = result; |
| 7149 | |
| 7150 | return true; |
| 7151 | } |
| 7152 | |
| 7153 | bool CSSPropertyParser::parseCanvas(CSSParserValueList* valueList, RefPtrWillBeRawPtr<CSSValue>& canvas) |
| 7154 | { |
| 7155 | // Walk the arguments. |
| 7156 | CSSParserValueList* args = valueList->current()->function->args.get(); |
| 7157 | if (!args || args->size() != 1) |
| 7158 | return false; |
| 7159 | |
| 7160 | // The first argument is the canvas name. It is an identifier. |
| 7161 | CSSParserValue* value = args->current(); |
| 7162 | if (!value || value->unit != CSSPrimitiveValue::CSS_IDENT) |
| 7163 | return false; |
| 7164 | |
| 7165 | canvas = CSSCanvasValue::create(value->string); |
| 7166 | return true; |
| 7167 | } |
| 7168 | |
| 7169 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseImageSet(CSSParserValueList* valueList) |
| 7170 | { |
| 7171 | CSSParserValue* function = valueList->current(); |
| 7172 | |
| 7173 | if (function->unit != CSSParserValue::Function) |
| 7174 | return nullptr; |
| 7175 | |
| 7176 | CSSParserValueList* functionArgs = valueList->current()->function->args.get(); |
| 7177 | if (!functionArgs || !functionArgs->size() || !functionArgs->current()) |
| 7178 | return nullptr; |
| 7179 | |
| 7180 | RefPtrWillBeRawPtr<CSSImageSetValue> imageSet = CSSImageSetValue::create(); |
| 7181 | |
| 7182 | CSSParserValue* arg = functionArgs->current(); |
| 7183 | while (arg) { |
| 7184 | if (arg->unit != CSSPrimitiveValue::CSS_URI) |
| 7185 | return nullptr; |
| 7186 | |
Bo Liu | f91f5fa | 2014-05-01 10:37:55 -0700 | [diff] [blame^] | 7187 | RefPtrWillBeRawPtr<CSSValue> image = createCSSImageValueWithReferrer(arg->string, completeURL(arg->string)); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7188 | imageSet->append(image); |
| 7189 | |
| 7190 | arg = functionArgs->next(); |
| 7191 | if (!arg || arg->unit != CSSPrimitiveValue::CSS_DIMENSION) |
| 7192 | return nullptr; |
| 7193 | |
| 7194 | double imageScaleFactor = 0; |
| 7195 | const String& string = arg->string; |
| 7196 | unsigned length = string.length(); |
| 7197 | if (!length) |
| 7198 | return nullptr; |
| 7199 | if (string.is8Bit()) { |
| 7200 | const LChar* start = string.characters8(); |
| 7201 | parseDouble(start, start + length, 'x', imageScaleFactor); |
| 7202 | } else { |
| 7203 | const UChar* start = string.characters16(); |
| 7204 | parseDouble(start, start + length, 'x', imageScaleFactor); |
| 7205 | } |
| 7206 | if (imageScaleFactor <= 0) |
| 7207 | return nullptr; |
| 7208 | imageSet->append(cssValuePool().createValue(imageScaleFactor, CSSPrimitiveValue::CSS_NUMBER)); |
| 7209 | |
| 7210 | // If there are no more arguments, we're done. |
| 7211 | arg = functionArgs->next(); |
| 7212 | if (!arg) |
| 7213 | break; |
| 7214 | |
| 7215 | // If there are more arguments, they should be after a comma. |
| 7216 | if (!isComma(arg)) |
| 7217 | return nullptr; |
| 7218 | |
| 7219 | // Skip the comma and move on to the next argument. |
| 7220 | arg = functionArgs->next(); |
| 7221 | } |
| 7222 | |
| 7223 | return imageSet.release(); |
| 7224 | } |
| 7225 | |
| 7226 | bool CSSPropertyParser::parseWillChange(bool important) |
| 7227 | { |
| 7228 | ASSERT(RuntimeEnabledFeatures::cssWillChangeEnabled()); |
| 7229 | |
| 7230 | RefPtrWillBeRawPtr<CSSValueList> values = CSSValueList::createCommaSeparated(); |
| 7231 | if (m_valueList->current()->id == CSSValueAuto) { |
| 7232 | if (m_valueList->next()) |
| 7233 | return false; |
| 7234 | } |
| 7235 | |
| 7236 | CSSParserValue* currentValue; |
| 7237 | bool expectComma = false; |
| 7238 | |
| 7239 | // Every comma-separated list of CSS_IDENTs is a valid will-change value, |
| 7240 | // unless the list includes an explicitly disallowed CSS_IDENT. |
| 7241 | while ((currentValue = m_valueList->current())) { |
| 7242 | if (expectComma) { |
| 7243 | if (!isComma(currentValue)) |
| 7244 | return false; |
| 7245 | expectComma = false; |
| 7246 | m_valueList->next(); |
| 7247 | continue; |
| 7248 | } |
| 7249 | |
| 7250 | if (currentValue->unit != CSSPrimitiveValue::CSS_IDENT) |
| 7251 | return false; |
| 7252 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 7253 | CSSPropertyID property = cssPropertyID(currentValue->string); |
| 7254 | if (property && RuntimeCSSEnabled::isCSSPropertyEnabled(property)) { |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7255 | if (property == CSSPropertyWillChange) |
| 7256 | return false; |
| 7257 | values->append(cssValuePool().createIdentifierValue(property)); |
| 7258 | } else { |
| 7259 | switch (currentValue->id) { |
| 7260 | case CSSValueNone: |
| 7261 | case CSSValueAll: |
| 7262 | case CSSValueAuto: |
| 7263 | case CSSValueDefault: |
| 7264 | case CSSValueInitial: |
| 7265 | case CSSValueInherit: |
| 7266 | return false; |
| 7267 | case CSSValueContents: |
| 7268 | case CSSValueScrollPosition: |
| 7269 | values->append(cssValuePool().createIdentifierValue(currentValue->id)); |
| 7270 | break; |
| 7271 | default: |
| 7272 | break; |
| 7273 | } |
| 7274 | } |
| 7275 | expectComma = true; |
| 7276 | m_valueList->next(); |
| 7277 | } |
| 7278 | |
| 7279 | addProperty(CSSPropertyWillChange, values.release(), important); |
| 7280 | return true; |
| 7281 | } |
| 7282 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7283 | static void filterInfoForName(const CSSParserString& name, CSSFilterValue::FilterOperationType& filterType, unsigned& maximumArgumentCount) |
| 7284 | { |
| 7285 | if (equalIgnoringCase(name, "grayscale(")) |
| 7286 | filterType = CSSFilterValue::GrayscaleFilterOperation; |
| 7287 | else if (equalIgnoringCase(name, "sepia(")) |
| 7288 | filterType = CSSFilterValue::SepiaFilterOperation; |
| 7289 | else if (equalIgnoringCase(name, "saturate(")) |
| 7290 | filterType = CSSFilterValue::SaturateFilterOperation; |
| 7291 | else if (equalIgnoringCase(name, "hue-rotate(")) |
| 7292 | filterType = CSSFilterValue::HueRotateFilterOperation; |
| 7293 | else if (equalIgnoringCase(name, "invert(")) |
| 7294 | filterType = CSSFilterValue::InvertFilterOperation; |
| 7295 | else if (equalIgnoringCase(name, "opacity(")) |
| 7296 | filterType = CSSFilterValue::OpacityFilterOperation; |
| 7297 | else if (equalIgnoringCase(name, "brightness(")) |
| 7298 | filterType = CSSFilterValue::BrightnessFilterOperation; |
| 7299 | else if (equalIgnoringCase(name, "contrast(")) |
| 7300 | filterType = CSSFilterValue::ContrastFilterOperation; |
| 7301 | else if (equalIgnoringCase(name, "blur(")) |
| 7302 | filterType = CSSFilterValue::BlurFilterOperation; |
| 7303 | else if (equalIgnoringCase(name, "drop-shadow(")) { |
| 7304 | filterType = CSSFilterValue::DropShadowFilterOperation; |
| 7305 | maximumArgumentCount = 4; // x-offset, y-offset, blur-radius, color -- spread and inset style not allowed. |
| 7306 | } |
| 7307 | } |
| 7308 | |
| 7309 | PassRefPtrWillBeRawPtr<CSSFilterValue> CSSPropertyParser::parseBuiltinFilterArguments(CSSParserValueList* args, CSSFilterValue::FilterOperationType filterType) |
| 7310 | { |
| 7311 | RefPtrWillBeRawPtr<CSSFilterValue> filterValue = CSSFilterValue::create(filterType); |
| 7312 | ASSERT(args); |
| 7313 | |
| 7314 | switch (filterType) { |
| 7315 | case CSSFilterValue::GrayscaleFilterOperation: |
| 7316 | case CSSFilterValue::SepiaFilterOperation: |
| 7317 | case CSSFilterValue::SaturateFilterOperation: |
| 7318 | case CSSFilterValue::InvertFilterOperation: |
| 7319 | case CSSFilterValue::OpacityFilterOperation: |
| 7320 | case CSSFilterValue::ContrastFilterOperation: { |
| 7321 | // One optional argument, 0-1 or 0%-100%, if missing use 100%. |
| 7322 | if (args->size() > 1) |
| 7323 | return nullptr; |
| 7324 | |
| 7325 | if (args->size()) { |
| 7326 | CSSParserValue* value = args->current(); |
| 7327 | if (!validUnit(value, FNumber | FPercent | FNonNeg, HTMLStandardMode)) |
| 7328 | return nullptr; |
| 7329 | |
| 7330 | double amount = value->fValue; |
| 7331 | |
| 7332 | // Saturate and Contrast allow values over 100%. |
| 7333 | if (filterType != CSSFilterValue::SaturateFilterOperation |
| 7334 | && filterType != CSSFilterValue::ContrastFilterOperation) { |
| 7335 | double maxAllowed = value->unit == CSSPrimitiveValue::CSS_PERCENTAGE ? 100.0 : 1.0; |
| 7336 | if (amount > maxAllowed) |
| 7337 | return nullptr; |
| 7338 | } |
| 7339 | |
| 7340 | filterValue->append(cssValuePool().createValue(amount, static_cast<CSSPrimitiveValue::UnitTypes>(value->unit))); |
| 7341 | } |
| 7342 | break; |
| 7343 | } |
| 7344 | case CSSFilterValue::BrightnessFilterOperation: { |
| 7345 | // One optional argument, if missing use 100%. |
| 7346 | if (args->size() > 1) |
| 7347 | return nullptr; |
| 7348 | |
| 7349 | if (args->size()) { |
| 7350 | CSSParserValue* value = args->current(); |
| 7351 | if (!validUnit(value, FNumber | FPercent, HTMLStandardMode)) |
| 7352 | return nullptr; |
| 7353 | |
| 7354 | filterValue->append(cssValuePool().createValue(value->fValue, static_cast<CSSPrimitiveValue::UnitTypes>(value->unit))); |
| 7355 | } |
| 7356 | break; |
| 7357 | } |
| 7358 | case CSSFilterValue::HueRotateFilterOperation: { |
| 7359 | // hue-rotate() takes one optional angle. |
| 7360 | if (args->size() > 1) |
| 7361 | return nullptr; |
| 7362 | |
| 7363 | if (args->size()) { |
| 7364 | CSSParserValue* argument = args->current(); |
| 7365 | if (!validUnit(argument, FAngle, HTMLStandardMode)) |
| 7366 | return nullptr; |
| 7367 | |
| 7368 | filterValue->append(createPrimitiveNumericValue(argument)); |
| 7369 | } |
| 7370 | break; |
| 7371 | } |
| 7372 | case CSSFilterValue::BlurFilterOperation: { |
| 7373 | // Blur takes a single length. Zero parameters are allowed. |
| 7374 | if (args->size() > 1) |
| 7375 | return nullptr; |
| 7376 | |
| 7377 | if (args->size()) { |
| 7378 | CSSParserValue* argument = args->current(); |
| 7379 | if (!validUnit(argument, FLength | FNonNeg, HTMLStandardMode)) |
| 7380 | return nullptr; |
| 7381 | |
| 7382 | filterValue->append(createPrimitiveNumericValue(argument)); |
| 7383 | } |
| 7384 | break; |
| 7385 | } |
| 7386 | case CSSFilterValue::DropShadowFilterOperation: { |
| 7387 | // drop-shadow() takes a single shadow. |
| 7388 | RefPtrWillBeRawPtr<CSSValueList> shadowValueList = parseShadow(args, CSSPropertyWebkitFilter); |
| 7389 | if (!shadowValueList || shadowValueList->length() != 1) |
| 7390 | return nullptr; |
| 7391 | |
| 7392 | filterValue->append((shadowValueList.release())->itemWithoutBoundsCheck(0)); |
| 7393 | break; |
| 7394 | } |
| 7395 | default: |
| 7396 | ASSERT_NOT_REACHED(); |
| 7397 | } |
| 7398 | return filterValue.release(); |
| 7399 | } |
| 7400 | |
| 7401 | PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseFilter() |
| 7402 | { |
| 7403 | if (!m_valueList) |
| 7404 | return nullptr; |
| 7405 | |
| 7406 | // The filter is a list of functional primitives that specify individual operations. |
| 7407 | RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated(); |
| 7408 | for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) { |
| 7409 | if (value->unit != CSSPrimitiveValue::CSS_URI && (value->unit != CSSParserValue::Function || !value->function)) |
| 7410 | return nullptr; |
| 7411 | |
| 7412 | CSSFilterValue::FilterOperationType filterType = CSSFilterValue::UnknownFilterOperation; |
| 7413 | |
| 7414 | // See if the specified primitive is one we understand. |
| 7415 | if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| 7416 | RefPtrWillBeRawPtr<CSSFilterValue> referenceFilterValue = CSSFilterValue::create(CSSFilterValue::ReferenceFilterOperation); |
| 7417 | list->append(referenceFilterValue); |
| 7418 | referenceFilterValue->append(CSSSVGDocumentValue::create(value->string)); |
| 7419 | } else { |
| 7420 | const CSSParserString name = value->function->name; |
| 7421 | unsigned maximumArgumentCount = 1; |
| 7422 | |
| 7423 | filterInfoForName(name, filterType, maximumArgumentCount); |
| 7424 | |
| 7425 | if (filterType == CSSFilterValue::UnknownFilterOperation) |
| 7426 | return nullptr; |
| 7427 | |
| 7428 | CSSParserValueList* args = value->function->args.get(); |
| 7429 | if (!args) |
| 7430 | return nullptr; |
| 7431 | |
| 7432 | RefPtrWillBeRawPtr<CSSFilterValue> filterValue = parseBuiltinFilterArguments(args, filterType); |
| 7433 | if (!filterValue) |
| 7434 | return nullptr; |
| 7435 | |
| 7436 | list->append(filterValue); |
| 7437 | } |
| 7438 | } |
| 7439 | |
| 7440 | return list.release(); |
| 7441 | } |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 7442 | PassRefPtrWillBeRawPtr<CSSValueList> CSSPropertyParser::parseTransformOrigin() |
| 7443 | { |
| 7444 | CSSParserValue* value = m_valueList->current(); |
| 7445 | CSSValueID id = value->id; |
| 7446 | RefPtrWillBeRawPtr<CSSValue> xValue = nullptr; |
| 7447 | RefPtrWillBeRawPtr<CSSValue> yValue = nullptr; |
| 7448 | RefPtrWillBeRawPtr<CSSValue> zValue = nullptr; |
| 7449 | if (id == CSSValueLeft || id == CSSValueRight) { |
| 7450 | xValue = cssValuePool().createIdentifierValue(id); |
| 7451 | } else if (id == CSSValueTop || id == CSSValueBottom) { |
| 7452 | yValue = cssValuePool().createIdentifierValue(id); |
| 7453 | } else if (id == CSSValueCenter) { |
| 7454 | // Unresolved as to whether this is X or Y. |
| 7455 | } else if (validUnit(value, FPercent | FLength)) { |
| 7456 | xValue = createPrimitiveNumericValue(value); |
| 7457 | } else { |
| 7458 | return nullptr; |
| 7459 | } |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7460 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 7461 | if ((value = m_valueList->next())) { |
| 7462 | id = value->id; |
| 7463 | if (!xValue && (id == CSSValueLeft || id == CSSValueRight)) { |
| 7464 | xValue = cssValuePool().createIdentifierValue(id); |
| 7465 | } else if (!yValue && (id == CSSValueTop || id == CSSValueBottom)) { |
| 7466 | yValue = cssValuePool().createIdentifierValue(id); |
| 7467 | } else if (id == CSSValueCenter) { |
| 7468 | // Resolved below. |
| 7469 | } else if (!yValue && validUnit(value, FPercent | FLength)) { |
| 7470 | yValue = createPrimitiveNumericValue(value); |
| 7471 | } else { |
| 7472 | return nullptr; |
| 7473 | } |
| 7474 | |
| 7475 | // If X or Y have not been resolved, they must be center. |
| 7476 | if (!xValue) |
| 7477 | xValue = cssValuePool().createIdentifierValue(CSSValueCenter); |
| 7478 | if (!yValue) |
| 7479 | yValue = cssValuePool().createIdentifierValue(CSSValueCenter); |
| 7480 | |
| 7481 | if ((value = m_valueList->next())) { |
| 7482 | if (!validUnit(value, FLength)) |
| 7483 | return nullptr; |
| 7484 | zValue = createPrimitiveNumericValue(value); |
| 7485 | |
| 7486 | if ((value = m_valueList->next())) |
| 7487 | return nullptr; |
| 7488 | } |
| 7489 | } else if (!xValue) { |
| 7490 | if (yValue) { |
| 7491 | xValue = cssValuePool().createValue(50, CSSPrimitiveValue::CSS_PERCENTAGE); |
| 7492 | } else { |
| 7493 | xValue = cssValuePool().createIdentifierValue(CSSValueCenter); |
| 7494 | } |
| 7495 | } |
| 7496 | |
| 7497 | RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated(); |
| 7498 | list->append(xValue.release()); |
| 7499 | if (yValue) |
| 7500 | list->append(yValue.release()); |
| 7501 | if (zValue) |
| 7502 | list->append(zValue.release()); |
| 7503 | return list.release(); |
| 7504 | } |
| 7505 | |
| 7506 | bool CSSPropertyParser::parseWebkitTransformOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, CSSPropertyID& propId3, RefPtrWillBeRawPtr<CSSValue>& value, RefPtrWillBeRawPtr<CSSValue>& value2, RefPtrWillBeRawPtr<CSSValue>& value3) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7507 | { |
| 7508 | propId1 = propId; |
| 7509 | propId2 = propId; |
| 7510 | propId3 = propId; |
| 7511 | if (propId == CSSPropertyWebkitTransformOrigin) { |
| 7512 | propId1 = CSSPropertyWebkitTransformOriginX; |
| 7513 | propId2 = CSSPropertyWebkitTransformOriginY; |
| 7514 | propId3 = CSSPropertyWebkitTransformOriginZ; |
| 7515 | } |
| 7516 | |
| 7517 | switch (propId) { |
| 7518 | case CSSPropertyWebkitTransformOrigin: |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 7519 | if (!parseWebkitTransformOriginShorthand(value, value2, value3)) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7520 | return false; |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 7521 | // parseWebkitTransformOriginShorthand advances the m_valueList pointer |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7522 | break; |
| 7523 | case CSSPropertyWebkitTransformOriginX: { |
| 7524 | value = parseFillPositionX(m_valueList.get()); |
| 7525 | if (value) |
| 7526 | m_valueList->next(); |
| 7527 | break; |
| 7528 | } |
| 7529 | case CSSPropertyWebkitTransformOriginY: { |
| 7530 | value = parseFillPositionY(m_valueList.get()); |
| 7531 | if (value) |
| 7532 | m_valueList->next(); |
| 7533 | break; |
| 7534 | } |
| 7535 | case CSSPropertyWebkitTransformOriginZ: { |
| 7536 | if (validUnit(m_valueList->current(), FLength)) |
| 7537 | value = createPrimitiveNumericValue(m_valueList->current()); |
| 7538 | if (value) |
| 7539 | m_valueList->next(); |
| 7540 | break; |
| 7541 | } |
| 7542 | default: |
| 7543 | ASSERT_NOT_REACHED(); |
| 7544 | return false; |
| 7545 | } |
| 7546 | |
| 7547 | return value; |
| 7548 | } |
| 7549 | |
Ben Murdoch | aafa69c | 2014-04-03 12:30:15 +0100 | [diff] [blame] | 7550 | bool CSSPropertyParser::parseWebkitPerspectiveOrigin(CSSPropertyID propId, CSSPropertyID& propId1, CSSPropertyID& propId2, RefPtrWillBeRawPtr<CSSValue>& value, RefPtrWillBeRawPtr<CSSValue>& value2) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7551 | { |
| 7552 | propId1 = propId; |
| 7553 | propId2 = propId; |
| 7554 | if (propId == CSSPropertyWebkitPerspectiveOrigin) { |
| 7555 | propId1 = CSSPropertyWebkitPerspectiveOriginX; |
| 7556 | propId2 = CSSPropertyWebkitPerspectiveOriginY; |
| 7557 | } |
| 7558 | |
| 7559 | switch (propId) { |
| 7560 | case CSSPropertyWebkitPerspectiveOrigin: |
| 7561 | if (m_valueList->size() > 2) |
| 7562 | return false; |
| 7563 | parse2ValuesFillPosition(m_valueList.get(), value, value2); |
| 7564 | break; |
| 7565 | case CSSPropertyWebkitPerspectiveOriginX: { |
| 7566 | value = parseFillPositionX(m_valueList.get()); |
| 7567 | if (value) |
| 7568 | m_valueList->next(); |
| 7569 | break; |
| 7570 | } |
| 7571 | case CSSPropertyWebkitPerspectiveOriginY: { |
| 7572 | value = parseFillPositionY(m_valueList.get()); |
| 7573 | if (value) |
| 7574 | m_valueList->next(); |
| 7575 | break; |
| 7576 | } |
| 7577 | default: |
| 7578 | ASSERT_NOT_REACHED(); |
| 7579 | return false; |
| 7580 | } |
| 7581 | |
| 7582 | return value; |
| 7583 | } |
| 7584 | |
| 7585 | bool CSSPropertyParser::parseTouchAction(bool important) |
| 7586 | { |
| 7587 | if (!RuntimeEnabledFeatures::cssTouchActionEnabled()) |
| 7588 | return false; |
| 7589 | |
| 7590 | CSSParserValue* value = m_valueList->current(); |
| 7591 | RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated(); |
| 7592 | if (m_valueList->size() == 1 && value && (value->id == CSSValueAuto || value->id == CSSValueNone || value->id == CSSValueManipulation)) { |
| 7593 | list->append(cssValuePool().createIdentifierValue(value->id)); |
| 7594 | addProperty(CSSPropertyTouchAction, list.release(), important); |
| 7595 | m_valueList->next(); |
| 7596 | return true; |
| 7597 | } |
| 7598 | |
| 7599 | bool isValid = true; |
| 7600 | while (isValid && value) { |
| 7601 | switch (value->id) { |
| 7602 | case CSSValuePanX: |
| 7603 | case CSSValuePanY: { |
| 7604 | RefPtrWillBeRawPtr<CSSValue> panValue = cssValuePool().createIdentifierValue(value->id); |
| 7605 | if (list->hasValue(panValue.get())) { |
| 7606 | isValid = false; |
| 7607 | break; |
| 7608 | } |
| 7609 | list->append(panValue.release()); |
| 7610 | break; |
| 7611 | } |
| 7612 | default: |
| 7613 | isValid = false; |
| 7614 | break; |
| 7615 | } |
| 7616 | if (isValid) |
| 7617 | value = m_valueList->next(); |
| 7618 | } |
| 7619 | |
| 7620 | if (list->length() && isValid) { |
| 7621 | addProperty(CSSPropertyTouchAction, list.release(), important); |
| 7622 | return true; |
| 7623 | } |
| 7624 | |
| 7625 | return false; |
| 7626 | } |
| 7627 | |
| 7628 | void CSSPropertyParser::addTextDecorationProperty(CSSPropertyID propId, PassRefPtrWillBeRawPtr<CSSValue> value, bool important) |
| 7629 | { |
| 7630 | // The text-decoration-line property takes priority over text-decoration, unless the latter has important priority set. |
| 7631 | if (propId == CSSPropertyTextDecoration && !important && !inShorthand()) { |
| 7632 | for (unsigned i = 0; i < m_parsedProperties.size(); ++i) { |
| 7633 | if (m_parsedProperties[i].id() == CSSPropertyTextDecorationLine) |
| 7634 | return; |
| 7635 | } |
| 7636 | } |
| 7637 | addProperty(propId, value, important); |
| 7638 | } |
| 7639 | |
| 7640 | bool CSSPropertyParser::parseTextDecoration(CSSPropertyID propId, bool important) |
| 7641 | { |
| 7642 | if (propId == CSSPropertyTextDecorationLine |
| 7643 | && !RuntimeEnabledFeatures::css3TextDecorationsEnabled()) |
| 7644 | return false; |
| 7645 | |
| 7646 | CSSParserValue* value = m_valueList->current(); |
| 7647 | if (value && value->id == CSSValueNone) { |
| 7648 | addTextDecorationProperty(propId, cssValuePool().createIdentifierValue(CSSValueNone), important); |
| 7649 | m_valueList->next(); |
| 7650 | return true; |
| 7651 | } |
| 7652 | |
| 7653 | RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated(); |
| 7654 | bool isValid = true; |
| 7655 | while (isValid && value) { |
| 7656 | switch (value->id) { |
| 7657 | case CSSValueUnderline: |
| 7658 | case CSSValueOverline: |
| 7659 | case CSSValueLineThrough: |
| 7660 | case CSSValueBlink: |
| 7661 | list->append(cssValuePool().createIdentifierValue(value->id)); |
| 7662 | break; |
| 7663 | default: |
| 7664 | isValid = false; |
| 7665 | break; |
| 7666 | } |
| 7667 | if (isValid) |
| 7668 | value = m_valueList->next(); |
| 7669 | } |
| 7670 | |
| 7671 | // Values are either valid or in shorthand scope. |
| 7672 | if (list->length() && (isValid || inShorthand())) { |
| 7673 | addTextDecorationProperty(propId, list.release(), important); |
| 7674 | return true; |
| 7675 | } |
| 7676 | |
| 7677 | return false; |
| 7678 | } |
| 7679 | |
| 7680 | bool CSSPropertyParser::parseTextUnderlinePosition(bool important) |
| 7681 | { |
| 7682 | // The text-underline-position property has syntax "auto | [ under || [ left | right ] ]". |
| 7683 | // However, values 'left' and 'right' are not implemented yet, so we will parse syntax |
| 7684 | // "auto | under" for now. |
| 7685 | CSSParserValue* value = m_valueList->current(); |
| 7686 | switch (value->id) { |
| 7687 | case CSSValueAuto: |
| 7688 | case CSSValueUnder: |
| 7689 | if (m_valueList->next()) |
| 7690 | return false; |
| 7691 | addProperty(CSSPropertyTextUnderlinePosition, cssValuePool().createIdentifierValue(value->id), important); |
| 7692 | return true; |
| 7693 | default: |
| 7694 | return false; |
| 7695 | } |
| 7696 | } |
| 7697 | |
| 7698 | bool CSSPropertyParser::parseTextEmphasisStyle(bool important) |
| 7699 | { |
| 7700 | unsigned valueListSize = m_valueList->size(); |
| 7701 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 7702 | RefPtrWillBeRawPtr<CSSPrimitiveValue> fill = nullptr; |
| 7703 | RefPtrWillBeRawPtr<CSSPrimitiveValue> shape = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7704 | |
| 7705 | for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) { |
| 7706 | if (value->unit == CSSPrimitiveValue::CSS_STRING) { |
| 7707 | if (fill || shape || (valueListSize != 1 && !inShorthand())) |
| 7708 | return false; |
| 7709 | addProperty(CSSPropertyWebkitTextEmphasisStyle, createPrimitiveStringValue(value), important); |
| 7710 | m_valueList->next(); |
| 7711 | return true; |
| 7712 | } |
| 7713 | |
| 7714 | if (value->id == CSSValueNone) { |
| 7715 | if (fill || shape || (valueListSize != 1 && !inShorthand())) |
| 7716 | return false; |
| 7717 | addProperty(CSSPropertyWebkitTextEmphasisStyle, cssValuePool().createIdentifierValue(CSSValueNone), important); |
| 7718 | m_valueList->next(); |
| 7719 | return true; |
| 7720 | } |
| 7721 | |
| 7722 | if (value->id == CSSValueOpen || value->id == CSSValueFilled) { |
| 7723 | if (fill) |
| 7724 | return false; |
| 7725 | fill = cssValuePool().createIdentifierValue(value->id); |
| 7726 | } else if (value->id == CSSValueDot || value->id == CSSValueCircle || value->id == CSSValueDoubleCircle || value->id == CSSValueTriangle || value->id == CSSValueSesame) { |
| 7727 | if (shape) |
| 7728 | return false; |
| 7729 | shape = cssValuePool().createIdentifierValue(value->id); |
| 7730 | } else if (!inShorthand()) |
| 7731 | return false; |
| 7732 | else |
| 7733 | break; |
| 7734 | } |
| 7735 | |
| 7736 | if (fill && shape) { |
| 7737 | RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated(); |
| 7738 | parsedValues->append(fill.release()); |
| 7739 | parsedValues->append(shape.release()); |
| 7740 | addProperty(CSSPropertyWebkitTextEmphasisStyle, parsedValues.release(), important); |
| 7741 | return true; |
| 7742 | } |
| 7743 | if (fill) { |
| 7744 | addProperty(CSSPropertyWebkitTextEmphasisStyle, fill.release(), important); |
| 7745 | return true; |
| 7746 | } |
| 7747 | if (shape) { |
| 7748 | addProperty(CSSPropertyWebkitTextEmphasisStyle, shape.release(), important); |
| 7749 | return true; |
| 7750 | } |
| 7751 | |
| 7752 | return false; |
| 7753 | } |
| 7754 | |
| 7755 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseTextIndent() |
| 7756 | { |
| 7757 | RefPtrWillBeRawPtr<CSSValueList> list = CSSValueList::createSpaceSeparated(); |
| 7758 | |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 7759 | bool hasLengthOrPercentage = false; |
| 7760 | bool hasEachLine = false; |
| 7761 | bool hasHanging = false; |
| 7762 | |
| 7763 | for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) { |
| 7764 | // <length> | <percentage> | inherit when RuntimeEnabledFeatures::css3TextEnabled() returns false |
| 7765 | if (!hasLengthOrPercentage && validUnit(value, FLength | FPercent)) { |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7766 | list->append(createPrimitiveNumericValue(value)); |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 7767 | hasLengthOrPercentage = true; |
| 7768 | continue; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7769 | } |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 7770 | |
| 7771 | // [ <length> | <percentage> ] && hanging? && each-line? | inherit |
| 7772 | // when RuntimeEnabledFeatures::css3TextEnabled() returns true |
| 7773 | if (RuntimeEnabledFeatures::css3TextEnabled()) { |
| 7774 | if (!hasEachLine && value->id == CSSValueEachLine) { |
| 7775 | list->append(cssValuePool().createIdentifierValue(CSSValueEachLine)); |
| 7776 | hasEachLine = true; |
| 7777 | continue; |
| 7778 | } |
| 7779 | if (!hasHanging && value->id == CSSValueHanging) { |
| 7780 | list->append(cssValuePool().createIdentifierValue(CSSValueHanging)); |
| 7781 | hasHanging = true; |
| 7782 | continue; |
| 7783 | } |
| 7784 | } |
| 7785 | return nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7786 | } |
| 7787 | |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 7788 | if (!hasLengthOrPercentage) |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7789 | return nullptr; |
| 7790 | |
Ben Murdoch | 10f88d5 | 2014-04-24 10:50:33 +0100 | [diff] [blame] | 7791 | return list.release(); |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 7792 | } |
| 7793 | |
| 7794 | bool CSSPropertyParser::parseLineBoxContain(bool important) |
| 7795 | { |
| 7796 | LineBoxContain lineBoxContain = LineBoxContainNone; |
| 7797 | |
| 7798 | for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) { |
| 7799 | if (value->id == CSSValueBlock) { |
| 7800 | if (lineBoxContain & LineBoxContainBlock) |
| 7801 | return false; |
| 7802 | lineBoxContain |= LineBoxContainBlock; |
| 7803 | } else if (value->id == CSSValueInline) { |
| 7804 | if (lineBoxContain & LineBoxContainInline) |
| 7805 | return false; |
| 7806 | lineBoxContain |= LineBoxContainInline; |
| 7807 | } else if (value->id == CSSValueFont) { |
| 7808 | if (lineBoxContain & LineBoxContainFont) |
| 7809 | return false; |
| 7810 | lineBoxContain |= LineBoxContainFont; |
| 7811 | } else if (value->id == CSSValueGlyphs) { |
| 7812 | if (lineBoxContain & LineBoxContainGlyphs) |
| 7813 | return false; |
| 7814 | lineBoxContain |= LineBoxContainGlyphs; |
| 7815 | } else if (value->id == CSSValueReplaced) { |
| 7816 | if (lineBoxContain & LineBoxContainReplaced) |
| 7817 | return false; |
| 7818 | lineBoxContain |= LineBoxContainReplaced; |
| 7819 | } else if (value->id == CSSValueInlineBox) { |
| 7820 | if (lineBoxContain & LineBoxContainInlineBox) |
| 7821 | return false; |
| 7822 | lineBoxContain |= LineBoxContainInlineBox; |
| 7823 | } else |
| 7824 | return false; |
| 7825 | } |
| 7826 | |
| 7827 | if (!lineBoxContain) |
| 7828 | return false; |
| 7829 | |
| 7830 | addProperty(CSSPropertyWebkitLineBoxContain, CSSLineBoxContainValue::create(lineBoxContain), important); |
| 7831 | return true; |
| 7832 | } |
| 7833 | |
| 7834 | bool CSSPropertyParser::parseFontFeatureTag(CSSValueList* settings) |
| 7835 | { |
| 7836 | // Feature tag name consists of 4-letter characters. |
| 7837 | static const unsigned tagNameLength = 4; |
| 7838 | |
| 7839 | CSSParserValue* value = m_valueList->current(); |
| 7840 | // Feature tag name comes first |
| 7841 | if (value->unit != CSSPrimitiveValue::CSS_STRING) |
| 7842 | return false; |
| 7843 | if (value->string.length() != tagNameLength) |
| 7844 | return false; |
| 7845 | for (unsigned i = 0; i < tagNameLength; ++i) { |
| 7846 | // Limits the range of characters to 0x20-0x7E, following the tag name rules defiend in the OpenType specification. |
| 7847 | UChar character = value->string[i]; |
| 7848 | if (character < 0x20 || character > 0x7E) |
| 7849 | return false; |
| 7850 | } |
| 7851 | |
| 7852 | AtomicString tag = value->string; |
| 7853 | int tagValue = 1; |
| 7854 | // Feature tag values could follow: <integer> | on | off |
| 7855 | value = m_valueList->next(); |
| 7856 | if (value) { |
| 7857 | if (value->unit == CSSPrimitiveValue::CSS_NUMBER && value->isInt && value->fValue >= 0) { |
| 7858 | tagValue = clampToInteger(value->fValue); |
| 7859 | if (tagValue < 0) |
| 7860 | return false; |
| 7861 | m_valueList->next(); |
| 7862 | } else if (value->id == CSSValueOn || value->id == CSSValueOff) { |
| 7863 | tagValue = value->id == CSSValueOn; |
| 7864 | m_valueList->next(); |
| 7865 | } |
| 7866 | } |
| 7867 | settings->append(CSSFontFeatureValue::create(tag, tagValue)); |
| 7868 | return true; |
| 7869 | } |
| 7870 | |
| 7871 | bool CSSPropertyParser::parseFontFeatureSettings(bool important) |
| 7872 | { |
| 7873 | if (m_valueList->size() == 1 && m_valueList->current()->id == CSSValueNormal) { |
| 7874 | RefPtrWillBeRawPtr<CSSPrimitiveValue> normalValue = cssValuePool().createIdentifierValue(CSSValueNormal); |
| 7875 | m_valueList->next(); |
| 7876 | addProperty(CSSPropertyWebkitFontFeatureSettings, normalValue.release(), important); |
| 7877 | return true; |
| 7878 | } |
| 7879 | |
| 7880 | RefPtrWillBeRawPtr<CSSValueList> settings = CSSValueList::createCommaSeparated(); |
| 7881 | for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) { |
| 7882 | if (!parseFontFeatureTag(settings.get())) |
| 7883 | return false; |
| 7884 | |
| 7885 | // If the list isn't parsed fully, the current value should be comma. |
| 7886 | value = m_valueList->current(); |
| 7887 | if (value && !isComma(value)) |
| 7888 | return false; |
| 7889 | } |
| 7890 | if (settings->length()) { |
| 7891 | addProperty(CSSPropertyWebkitFontFeatureSettings, settings.release(), important); |
| 7892 | return true; |
| 7893 | } |
| 7894 | return false; |
| 7895 | } |
| 7896 | |
| 7897 | bool CSSPropertyParser::parseFontVariantLigatures(bool important) |
| 7898 | { |
| 7899 | RefPtrWillBeRawPtr<CSSValueList> ligatureValues = CSSValueList::createSpaceSeparated(); |
| 7900 | bool sawCommonLigaturesValue = false; |
| 7901 | bool sawDiscretionaryLigaturesValue = false; |
| 7902 | bool sawHistoricalLigaturesValue = false; |
| 7903 | bool sawContextualLigaturesValue = false; |
| 7904 | |
| 7905 | for (CSSParserValue* value = m_valueList->current(); value; value = m_valueList->next()) { |
| 7906 | if (value->unit != CSSPrimitiveValue::CSS_IDENT) |
| 7907 | return false; |
| 7908 | |
| 7909 | switch (value->id) { |
| 7910 | case CSSValueNoCommonLigatures: |
| 7911 | case CSSValueCommonLigatures: |
| 7912 | if (sawCommonLigaturesValue) |
| 7913 | return false; |
| 7914 | sawCommonLigaturesValue = true; |
| 7915 | ligatureValues->append(cssValuePool().createIdentifierValue(value->id)); |
| 7916 | break; |
| 7917 | case CSSValueNoDiscretionaryLigatures: |
| 7918 | case CSSValueDiscretionaryLigatures: |
| 7919 | if (sawDiscretionaryLigaturesValue) |
| 7920 | return false; |
| 7921 | sawDiscretionaryLigaturesValue = true; |
| 7922 | ligatureValues->append(cssValuePool().createIdentifierValue(value->id)); |
| 7923 | break; |
| 7924 | case CSSValueNoHistoricalLigatures: |
| 7925 | case CSSValueHistoricalLigatures: |
| 7926 | if (sawHistoricalLigaturesValue) |
| 7927 | return false; |
| 7928 | sawHistoricalLigaturesValue = true; |
| 7929 | ligatureValues->append(cssValuePool().createIdentifierValue(value->id)); |
| 7930 | break; |
| 7931 | case CSSValueNoContextual: |
| 7932 | case CSSValueContextual: |
| 7933 | if (sawContextualLigaturesValue) |
| 7934 | return false; |
| 7935 | sawContextualLigaturesValue = true; |
| 7936 | ligatureValues->append(cssValuePool().createIdentifierValue(value->id)); |
| 7937 | break; |
| 7938 | default: |
| 7939 | return false; |
| 7940 | } |
| 7941 | } |
| 7942 | |
| 7943 | if (!ligatureValues->length()) |
| 7944 | return false; |
| 7945 | |
| 7946 | addProperty(CSSPropertyFontVariantLigatures, ligatureValues.release(), important); |
| 7947 | return true; |
| 7948 | } |
| 7949 | |
| 7950 | bool CSSPropertyParser::parseCalculation(CSSParserValue* value, ValueRange range) |
| 7951 | { |
| 7952 | ASSERT(isCalculation(value)); |
| 7953 | |
| 7954 | CSSParserValueList* args = value->function->args.get(); |
| 7955 | if (!args || !args->size()) |
| 7956 | return false; |
| 7957 | |
| 7958 | ASSERT(!m_parsedCalculation); |
| 7959 | m_parsedCalculation = CSSCalcValue::create(value->function->name, args, range); |
| 7960 | |
| 7961 | if (!m_parsedCalculation) |
| 7962 | return false; |
| 7963 | |
| 7964 | return true; |
| 7965 | } |
| 7966 | |
| 7967 | bool CSSPropertyParser::parseViewportProperty(CSSPropertyID propId, bool important) |
| 7968 | { |
| 7969 | ASSERT(RuntimeEnabledFeatures::cssViewportEnabled() || isUASheetBehavior(m_context.mode())); |
| 7970 | |
| 7971 | CSSParserValue* value = m_valueList->current(); |
| 7972 | if (!value) |
| 7973 | return false; |
| 7974 | |
| 7975 | CSSValueID id = value->id; |
| 7976 | bool validPrimitive = false; |
| 7977 | |
| 7978 | switch (propId) { |
| 7979 | case CSSPropertyMinWidth: // auto | extend-to-zoom | <length> | <percentage> |
| 7980 | case CSSPropertyMaxWidth: |
| 7981 | case CSSPropertyMinHeight: |
| 7982 | case CSSPropertyMaxHeight: |
| 7983 | if (id == CSSValueAuto || id == CSSValueInternalExtendToZoom) |
| 7984 | validPrimitive = true; |
| 7985 | else |
| 7986 | validPrimitive = (!id && validUnit(value, FLength | FPercent | FNonNeg)); |
| 7987 | break; |
| 7988 | case CSSPropertyWidth: // shorthand |
| 7989 | return parseViewportShorthand(propId, CSSPropertyMinWidth, CSSPropertyMaxWidth, important); |
| 7990 | case CSSPropertyHeight: |
| 7991 | return parseViewportShorthand(propId, CSSPropertyMinHeight, CSSPropertyMaxHeight, important); |
| 7992 | case CSSPropertyMinZoom: // auto | <number> | <percentage> |
| 7993 | case CSSPropertyMaxZoom: |
| 7994 | case CSSPropertyZoom: |
| 7995 | if (id == CSSValueAuto) |
| 7996 | validPrimitive = true; |
| 7997 | else |
| 7998 | validPrimitive = (!id && validUnit(value, FNumber | FPercent | FNonNeg)); |
| 7999 | break; |
| 8000 | case CSSPropertyUserZoom: // zoom | fixed |
| 8001 | if (id == CSSValueZoom || id == CSSValueFixed) |
| 8002 | validPrimitive = true; |
| 8003 | break; |
| 8004 | case CSSPropertyOrientation: // auto | portrait | landscape |
| 8005 | if (id == CSSValueAuto || id == CSSValuePortrait || id == CSSValueLandscape) |
| 8006 | validPrimitive = true; |
| 8007 | default: |
| 8008 | break; |
| 8009 | } |
| 8010 | |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 8011 | RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 8012 | if (validPrimitive) { |
| 8013 | parsedValue = parseValidPrimitive(id, value); |
| 8014 | m_valueList->next(); |
| 8015 | } |
| 8016 | |
| 8017 | if (parsedValue) { |
| 8018 | if (!m_valueList->current() || inShorthand()) { |
| 8019 | addProperty(propId, parsedValue.release(), important); |
| 8020 | return true; |
| 8021 | } |
| 8022 | } |
| 8023 | |
| 8024 | return false; |
| 8025 | } |
| 8026 | |
| 8027 | bool CSSPropertyParser::parseViewportShorthand(CSSPropertyID propId, CSSPropertyID first, CSSPropertyID second, bool important) |
| 8028 | { |
| 8029 | ASSERT(RuntimeEnabledFeatures::cssViewportEnabled() || isUASheetBehavior(m_context.mode())); |
| 8030 | unsigned numValues = m_valueList->size(); |
| 8031 | |
| 8032 | if (numValues > 2) |
| 8033 | return false; |
| 8034 | |
| 8035 | ShorthandScope scope(this, propId); |
| 8036 | |
| 8037 | if (!parseViewportProperty(first, important)) |
| 8038 | return false; |
| 8039 | |
| 8040 | // If just one value is supplied, the second value |
| 8041 | // is implicitly initialized with the first value. |
| 8042 | if (numValues == 1) |
| 8043 | m_valueList->previous(); |
| 8044 | |
| 8045 | return parseViewportProperty(second, important); |
| 8046 | } |
| 8047 | |
| 8048 | template <typename CharacterType> |
| 8049 | static CSSPropertyID cssPropertyID(const CharacterType* propertyName, unsigned length) |
| 8050 | { |
| 8051 | char buffer[maxCSSPropertyNameLength + 1]; // 1 for null character |
| 8052 | |
| 8053 | for (unsigned i = 0; i != length; ++i) { |
| 8054 | CharacterType c = propertyName[i]; |
| 8055 | if (c == 0 || c >= 0x7F) |
| 8056 | return CSSPropertyInvalid; // illegal character |
| 8057 | buffer[i] = toASCIILower(c); |
| 8058 | } |
| 8059 | buffer[length] = '\0'; |
| 8060 | |
| 8061 | const char* name = buffer; |
| 8062 | const Property* hashTableEntry = findProperty(name, length); |
| 8063 | return hashTableEntry ? static_cast<CSSPropertyID>(hashTableEntry->id) : CSSPropertyInvalid; |
| 8064 | } |
| 8065 | |
| 8066 | CSSPropertyID cssPropertyID(const String& string) |
| 8067 | { |
| 8068 | unsigned length = string.length(); |
| 8069 | |
| 8070 | if (!length) |
| 8071 | return CSSPropertyInvalid; |
| 8072 | if (length > maxCSSPropertyNameLength) |
| 8073 | return CSSPropertyInvalid; |
| 8074 | |
| 8075 | return string.is8Bit() ? cssPropertyID(string.characters8(), length) : cssPropertyID(string.characters16(), length); |
| 8076 | } |
| 8077 | |
| 8078 | CSSPropertyID cssPropertyID(const CSSParserString& string) |
| 8079 | { |
| 8080 | unsigned length = string.length(); |
| 8081 | |
| 8082 | if (!length) |
| 8083 | return CSSPropertyInvalid; |
| 8084 | if (length > maxCSSPropertyNameLength) |
| 8085 | return CSSPropertyInvalid; |
| 8086 | |
| 8087 | return string.is8Bit() ? cssPropertyID(string.characters8(), length) : cssPropertyID(string.characters16(), length); |
| 8088 | } |
| 8089 | |
| 8090 | template <typename CharacterType> |
| 8091 | static CSSValueID cssValueKeywordID(const CharacterType* valueKeyword, unsigned length) |
| 8092 | { |
| 8093 | char buffer[maxCSSValueKeywordLength + 1]; // 1 for null character |
| 8094 | |
| 8095 | for (unsigned i = 0; i != length; ++i) { |
| 8096 | CharacterType c = valueKeyword[i]; |
| 8097 | if (c == 0 || c >= 0x7F) |
| 8098 | return CSSValueInvalid; // illegal character |
| 8099 | buffer[i] = WTF::toASCIILower(c); |
| 8100 | } |
| 8101 | buffer[length] = '\0'; |
| 8102 | |
| 8103 | const Value* hashTableEntry = findValue(buffer, length); |
| 8104 | return hashTableEntry ? static_cast<CSSValueID>(hashTableEntry->id) : CSSValueInvalid; |
| 8105 | } |
| 8106 | |
| 8107 | CSSValueID cssValueKeywordID(const CSSParserString& string) |
| 8108 | { |
| 8109 | unsigned length = string.length(); |
| 8110 | if (!length) |
| 8111 | return CSSValueInvalid; |
| 8112 | if (length > maxCSSValueKeywordLength) |
| 8113 | return CSSValueInvalid; |
| 8114 | |
| 8115 | return string.is8Bit() ? cssValueKeywordID(string.characters8(), length) : cssValueKeywordID(string.characters16(), length); |
| 8116 | } |
| 8117 | |
| 8118 | bool isValidNthToken(const CSSParserString& token) |
| 8119 | { |
| 8120 | // The tokenizer checks for the construct of an+b. |
| 8121 | // However, since the {ident} rule precedes the {nth} rule, some of those |
| 8122 | // tokens are identified as string literal. Furthermore we need to accept |
| 8123 | // "odd" and "even" which does not match to an+b. |
| 8124 | return equalIgnoringCase(token, "odd") || equalIgnoringCase(token, "even") |
| 8125 | || equalIgnoringCase(token, "n") || equalIgnoringCase(token, "-n"); |
| 8126 | } |
| 8127 | |
| 8128 | bool CSSPropertyParser::isSystemColor(int id) |
| 8129 | { |
| 8130 | return (id >= CSSValueActiveborder && id <= CSSValueWindowtext) || id == CSSValueMenu; |
| 8131 | } |
| 8132 | |
| 8133 | bool CSSPropertyParser::parseSVGValue(CSSPropertyID propId, bool important) |
| 8134 | { |
| 8135 | CSSParserValue* value = m_valueList->current(); |
| 8136 | if (!value) |
| 8137 | return false; |
| 8138 | |
| 8139 | CSSValueID id = value->id; |
| 8140 | |
| 8141 | bool validPrimitive = false; |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 8142 | RefPtrWillBeRawPtr<CSSValue> parsedValue = nullptr; |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 8143 | |
| 8144 | switch (propId) { |
| 8145 | /* The comment to the right defines all valid value of these |
| 8146 | * properties as defined in SVG 1.1, Appendix N. Property index */ |
| 8147 | case CSSPropertyAlignmentBaseline: |
| 8148 | // auto | baseline | before-edge | text-before-edge | middle | |
| 8149 | // central | after-edge | text-after-edge | ideographic | alphabetic | |
| 8150 | // hanging | mathematical | inherit |
| 8151 | if (id == CSSValueAuto || id == CSSValueBaseline || id == CSSValueMiddle |
| 8152 | || (id >= CSSValueBeforeEdge && id <= CSSValueMathematical)) |
| 8153 | validPrimitive = true; |
| 8154 | break; |
| 8155 | |
| 8156 | case CSSPropertyBaselineShift: |
| 8157 | // baseline | super | sub | <percentage> | <length> | inherit |
| 8158 | if (id == CSSValueBaseline || id == CSSValueSub |
| 8159 | || id >= CSSValueSuper) |
| 8160 | validPrimitive = true; |
| 8161 | else |
| 8162 | validPrimitive = validUnit(value, FLength | FPercent, SVGAttributeMode); |
| 8163 | break; |
| 8164 | |
| 8165 | case CSSPropertyDominantBaseline: |
| 8166 | // auto | use-script | no-change | reset-size | ideographic | |
| 8167 | // alphabetic | hanging | mathematical | central | middle | |
| 8168 | // text-after-edge | text-before-edge | inherit |
| 8169 | if (id == CSSValueAuto || id == CSSValueMiddle |
| 8170 | || (id >= CSSValueUseScript && id <= CSSValueResetSize) |
| 8171 | || (id >= CSSValueCentral && id <= CSSValueMathematical)) |
| 8172 | validPrimitive = true; |
| 8173 | break; |
| 8174 | |
| 8175 | case CSSPropertyEnableBackground: |
| 8176 | // accumulate | new [x] [y] [width] [height] | inherit |
| 8177 | if (id == CSSValueAccumulate) // TODO : new |
| 8178 | validPrimitive = true; |
| 8179 | break; |
| 8180 | |
| 8181 | case CSSPropertyMarkerStart: |
| 8182 | case CSSPropertyMarkerMid: |
| 8183 | case CSSPropertyMarkerEnd: |
| 8184 | case CSSPropertyMask: |
| 8185 | if (id == CSSValueNone) { |
| 8186 | validPrimitive = true; |
| 8187 | } else if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| 8188 | parsedValue = CSSPrimitiveValue::create(value->string, CSSPrimitiveValue::CSS_URI); |
| 8189 | if (parsedValue) |
| 8190 | m_valueList->next(); |
| 8191 | } |
| 8192 | break; |
| 8193 | |
| 8194 | case CSSPropertyClipRule: // nonzero | evenodd | inherit |
| 8195 | case CSSPropertyFillRule: |
| 8196 | if (id == CSSValueNonzero || id == CSSValueEvenodd) |
| 8197 | validPrimitive = true; |
| 8198 | break; |
| 8199 | |
| 8200 | case CSSPropertyStrokeMiterlimit: // <miterlimit> | inherit |
| 8201 | validPrimitive = validUnit(value, FNumber | FNonNeg, SVGAttributeMode); |
| 8202 | break; |
| 8203 | |
| 8204 | case CSSPropertyStrokeLinejoin: // miter | round | bevel | inherit |
| 8205 | if (id == CSSValueMiter || id == CSSValueRound || id == CSSValueBevel) |
| 8206 | validPrimitive = true; |
| 8207 | break; |
| 8208 | |
| 8209 | case CSSPropertyStrokeLinecap: // butt | round | square | inherit |
| 8210 | if (id == CSSValueButt || id == CSSValueRound || id == CSSValueSquare) |
| 8211 | validPrimitive = true; |
| 8212 | break; |
| 8213 | |
| 8214 | case CSSPropertyStrokeOpacity: // <opacity-value> | inherit |
| 8215 | case CSSPropertyFillOpacity: |
| 8216 | case CSSPropertyStopOpacity: |
| 8217 | case CSSPropertyFloodOpacity: |
| 8218 | validPrimitive = (!id && validUnit(value, FNumber | FPercent, SVGAttributeMode)); |
| 8219 | break; |
| 8220 | |
| 8221 | case CSSPropertyShapeRendering: |
| 8222 | // auto | optimizeSpeed | crispEdges | geometricPrecision | inherit |
| 8223 | if (id == CSSValueAuto || id == CSSValueOptimizespeed |
| 8224 | || id == CSSValueCrispedges || id == CSSValueGeometricprecision) |
| 8225 | validPrimitive = true; |
| 8226 | break; |
| 8227 | |
| 8228 | case CSSPropertyImageRendering: // auto | optimizeSpeed | |
| 8229 | case CSSPropertyColorRendering: // optimizeQuality | inherit |
| 8230 | if (id == CSSValueAuto || id == CSSValueOptimizespeed |
| 8231 | || id == CSSValueOptimizequality) |
| 8232 | validPrimitive = true; |
| 8233 | break; |
| 8234 | |
| 8235 | case CSSPropertyBufferedRendering: // auto | dynamic | static |
| 8236 | if (id == CSSValueAuto || id == CSSValueDynamic || id == CSSValueStatic) |
| 8237 | validPrimitive = true; |
| 8238 | break; |
| 8239 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 8240 | case CSSPropertyColorInterpolation: // auto | sRGB | linearRGB | inherit |
| 8241 | case CSSPropertyColorInterpolationFilters: |
| 8242 | if (id == CSSValueAuto || id == CSSValueSrgb || id == CSSValueLinearrgb) |
| 8243 | validPrimitive = true; |
| 8244 | break; |
| 8245 | |
| 8246 | /* Start of supported CSS properties with validation. This is needed for parseShortHand to work |
| 8247 | * correctly and allows optimization in applyRule(..) |
| 8248 | */ |
| 8249 | |
| 8250 | case CSSPropertyTextAnchor: // start | middle | end | inherit |
| 8251 | if (id == CSSValueStart || id == CSSValueMiddle || id == CSSValueEnd) |
| 8252 | validPrimitive = true; |
| 8253 | break; |
| 8254 | |
| 8255 | case CSSPropertyGlyphOrientationVertical: // auto | <angle> | inherit |
| 8256 | if (id == CSSValueAuto) { |
| 8257 | validPrimitive = true; |
| 8258 | break; |
| 8259 | } |
| 8260 | /* fallthrough intentional */ |
| 8261 | case CSSPropertyGlyphOrientationHorizontal: // <angle> (restricted to _deg_ per SVG 1.1 spec) | inherit |
| 8262 | if (value->unit == CSSPrimitiveValue::CSS_DEG || value->unit == CSSPrimitiveValue::CSS_NUMBER) { |
| 8263 | parsedValue = CSSPrimitiveValue::create(value->fValue, CSSPrimitiveValue::CSS_DEG); |
| 8264 | |
| 8265 | if (parsedValue) |
| 8266 | m_valueList->next(); |
| 8267 | } |
| 8268 | break; |
| 8269 | |
| 8270 | case CSSPropertyFill: // <paint> | inherit |
| 8271 | case CSSPropertyStroke: // <paint> | inherit |
| 8272 | { |
| 8273 | if (id == CSSValueNone) { |
| 8274 | parsedValue = SVGPaint::createNone(); |
| 8275 | } else if (id == CSSValueCurrentcolor) { |
| 8276 | parsedValue = SVGPaint::createCurrentColor(); |
| 8277 | } else if (isSystemColor(id)) { |
| 8278 | parsedValue = SVGPaint::createColor(RenderTheme::theme().systemColor(id)); |
| 8279 | } else if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| 8280 | RGBA32 c = Color::transparent; |
| 8281 | if (m_valueList->next()) { |
| 8282 | if (parseColorFromValue(m_valueList->current(), c)) |
| 8283 | parsedValue = SVGPaint::createURIAndColor(value->string, c); |
| 8284 | else if (m_valueList->current()->id == CSSValueNone) |
| 8285 | parsedValue = SVGPaint::createURIAndNone(value->string); |
| 8286 | else if (m_valueList->current()->id == CSSValueCurrentcolor) |
| 8287 | parsedValue = SVGPaint::createURIAndCurrentColor(value->string); |
| 8288 | } |
| 8289 | if (!parsedValue) |
| 8290 | parsedValue = SVGPaint::createURI(value->string); |
| 8291 | } else { |
| 8292 | parsedValue = parseSVGPaint(); |
| 8293 | } |
| 8294 | |
| 8295 | if (parsedValue) |
| 8296 | m_valueList->next(); |
| 8297 | } |
| 8298 | break; |
| 8299 | |
| 8300 | case CSSPropertyStopColor: // TODO : icccolor |
| 8301 | case CSSPropertyFloodColor: |
| 8302 | case CSSPropertyLightingColor: |
| 8303 | if (isSystemColor(id)) { |
| 8304 | parsedValue = cssValuePool().createColorValue(RenderTheme::theme().systemColor(id).rgb()); |
| 8305 | } else if ((id >= CSSValueAqua && id <= CSSValueTransparent) |
| 8306 | || (id >= CSSValueAliceblue && id <= CSSValueYellowgreen) || id == CSSValueGrey) { |
| 8307 | StyleColor styleColor = SVGPaint::colorFromRGBColorString(value->string); |
| 8308 | ASSERT(!styleColor.isCurrentColor()); |
| 8309 | parsedValue = cssValuePool().createColorValue(styleColor.color().rgb()); |
| 8310 | } else if (id == CSSValueCurrentcolor) { |
| 8311 | parsedValue = cssValuePool().createIdentifierValue(id); |
| 8312 | } else { // TODO : svgcolor (iccColor) |
| 8313 | parsedValue = parseColor(); |
| 8314 | } |
| 8315 | |
| 8316 | if (parsedValue) |
| 8317 | m_valueList->next(); |
| 8318 | |
| 8319 | break; |
| 8320 | |
| 8321 | case CSSPropertyPaintOrder: |
| 8322 | if (!RuntimeEnabledFeatures::svgPaintOrderEnabled()) |
| 8323 | return false; |
| 8324 | |
| 8325 | if (m_valueList->size() == 1 && id == CSSValueNormal) |
| 8326 | validPrimitive = true; |
| 8327 | else if ((parsedValue = parsePaintOrder())) |
| 8328 | m_valueList->next(); |
| 8329 | break; |
| 8330 | |
| 8331 | case CSSPropertyVectorEffect: // none | non-scaling-stroke | inherit |
| 8332 | if (id == CSSValueNone || id == CSSValueNonScalingStroke) |
| 8333 | validPrimitive = true; |
| 8334 | break; |
| 8335 | |
| 8336 | case CSSPropertyWritingMode: |
| 8337 | // lr-tb | rl_tb | tb-rl | lr | rl | tb | inherit |
| 8338 | if (id == CSSValueLrTb || id == CSSValueRlTb || id == CSSValueTbRl || id == CSSValueLr || id == CSSValueRl || id == CSSValueTb) |
| 8339 | validPrimitive = true; |
| 8340 | break; |
| 8341 | |
| 8342 | case CSSPropertyStrokeWidth: // <length> | inherit |
| 8343 | case CSSPropertyStrokeDashoffset: |
| 8344 | validPrimitive = validUnit(value, FLength | FPercent, SVGAttributeMode); |
| 8345 | break; |
| 8346 | case CSSPropertyStrokeDasharray: // none | <dasharray> | inherit |
| 8347 | if (id == CSSValueNone) |
| 8348 | validPrimitive = true; |
| 8349 | else |
| 8350 | parsedValue = parseSVGStrokeDasharray(); |
| 8351 | |
| 8352 | break; |
| 8353 | |
Torne (Richard Coles) | d5428f3 | 2014-03-18 10:21:16 +0000 | [diff] [blame] | 8354 | case CSSPropertyClipPath: // <uri> | none | inherit |
| 8355 | case CSSPropertyFilter: |
| 8356 | if (id == CSSValueNone) { |
| 8357 | validPrimitive = true; |
| 8358 | } else if (value->unit == CSSPrimitiveValue::CSS_URI) { |
| 8359 | parsedValue = CSSPrimitiveValue::create(value->string, (CSSPrimitiveValue::UnitTypes) value->unit); |
| 8360 | if (parsedValue) |
| 8361 | m_valueList->next(); |
| 8362 | } |
| 8363 | break; |
| 8364 | case CSSPropertyMaskType: // luminance | alpha | inherit |
| 8365 | if (id == CSSValueLuminance || id == CSSValueAlpha) |
| 8366 | validPrimitive = true; |
| 8367 | break; |
| 8368 | |
| 8369 | /* shorthand properties */ |
| 8370 | case CSSPropertyMarker: { |
| 8371 | ShorthandScope scope(this, propId); |
| 8372 | CSSPropertyParser::ImplicitScope implicitScope(this, PropertyImplicit); |
| 8373 | if (!parseValue(CSSPropertyMarkerStart, important)) |
| 8374 | return false; |
| 8375 | if (m_valueList->current()) { |
| 8376 | rollbackLastProperties(1); |
| 8377 | return false; |
| 8378 | } |
| 8379 | CSSValue* value = m_parsedProperties.last().value(); |
| 8380 | addProperty(CSSPropertyMarkerMid, value, important); |
| 8381 | addProperty(CSSPropertyMarkerEnd, value, important); |
| 8382 | return true; |
| 8383 | } |
| 8384 | default: |
| 8385 | // If you crash here, it's because you added a css property and are not handling it |
| 8386 | // in either this switch statement or the one in CSSPropertyParser::parseValue |
| 8387 | ASSERT_WITH_MESSAGE(0, "unimplemented propertyID: %d", propId); |
| 8388 | return false; |
| 8389 | } |
| 8390 | |
| 8391 | if (validPrimitive) { |
| 8392 | if (id) |
| 8393 | parsedValue = CSSPrimitiveValue::createIdentifier(id); |
| 8394 | else if (value->unit == CSSPrimitiveValue::CSS_STRING) |
| 8395 | parsedValue = CSSPrimitiveValue::create(value->string, (CSSPrimitiveValue::UnitTypes) value->unit); |
| 8396 | else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ) |
| 8397 | parsedValue = CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit); |
| 8398 | else if (value->unit >= CSSParserValue::Q_EMS) |
| 8399 | parsedValue = CSSPrimitiveValue::createAllowingMarginQuirk(value->fValue, CSSPrimitiveValue::CSS_EMS); |
| 8400 | if (isCalculation(value)) { |
| 8401 | // FIXME calc() http://webkit.org/b/16662 : actually create a CSSPrimitiveValue here, ie |
| 8402 | // parsedValue = CSSPrimitiveValue::create(m_parsedCalculation.release()); |
| 8403 | m_parsedCalculation.release(); |
| 8404 | parsedValue = nullptr; |
| 8405 | } |
| 8406 | m_valueList->next(); |
| 8407 | } |
| 8408 | if (!parsedValue || (m_valueList->current() && !inShorthand())) |
| 8409 | return false; |
| 8410 | |
| 8411 | addProperty(propId, parsedValue.release(), important); |
| 8412 | return true; |
| 8413 | } |
| 8414 | |
| 8415 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseSVGStrokeDasharray() |
| 8416 | { |
| 8417 | RefPtrWillBeRawPtr<CSSValueList> ret = CSSValueList::createCommaSeparated(); |
| 8418 | CSSParserValue* value = m_valueList->current(); |
| 8419 | bool validPrimitive = true; |
| 8420 | while (value) { |
| 8421 | validPrimitive = validUnit(value, FLength | FPercent | FNonNeg, SVGAttributeMode); |
| 8422 | if (!validPrimitive) |
| 8423 | break; |
| 8424 | if (value->id) |
| 8425 | ret->append(CSSPrimitiveValue::createIdentifier(value->id)); |
| 8426 | else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER && value->unit <= CSSPrimitiveValue::CSS_KHZ) |
| 8427 | ret->append(CSSPrimitiveValue::create(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit)); |
| 8428 | value = m_valueList->next(); |
| 8429 | if (value && value->unit == CSSParserValue::Operator && value->iValue == ',') |
| 8430 | value = m_valueList->next(); |
| 8431 | } |
| 8432 | if (!validPrimitive) |
| 8433 | return nullptr; |
| 8434 | return ret.release(); |
| 8435 | } |
| 8436 | |
| 8437 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parseSVGPaint() |
| 8438 | { |
| 8439 | RGBA32 c = Color::transparent; |
| 8440 | if (!parseColorFromValue(m_valueList->current(), c)) |
| 8441 | return SVGPaint::createUnknown(); |
| 8442 | return SVGPaint::createColor(Color(c)); |
| 8443 | } |
| 8444 | |
| 8445 | // normal | [ fill || stroke || markers ] |
| 8446 | PassRefPtrWillBeRawPtr<CSSValue> CSSPropertyParser::parsePaintOrder() const |
| 8447 | { |
| 8448 | if (m_valueList->size() > 3) |
| 8449 | return nullptr; |
| 8450 | |
| 8451 | CSSParserValue* value = m_valueList->current(); |
| 8452 | if (!value) |
| 8453 | return nullptr; |
| 8454 | |
| 8455 | RefPtrWillBeRawPtr<CSSValueList> parsedValues = CSSValueList::createSpaceSeparated(); |
| 8456 | |
| 8457 | // The default paint-order is: Fill, Stroke, Markers. |
| 8458 | bool seenFill = false, seenStroke = false, seenMarkers = false; |
| 8459 | |
| 8460 | do { |
| 8461 | switch (value->id) { |
| 8462 | case CSSValueNormal: |
| 8463 | // normal inside [fill || stroke || markers] not valid |
| 8464 | return nullptr; |
| 8465 | case CSSValueFill: |
| 8466 | if (seenFill) |
| 8467 | return nullptr; |
| 8468 | |
| 8469 | seenFill = true; |
| 8470 | break; |
| 8471 | case CSSValueStroke: |
| 8472 | if (seenStroke) |
| 8473 | return nullptr; |
| 8474 | |
| 8475 | seenStroke = true; |
| 8476 | break; |
| 8477 | case CSSValueMarkers: |
| 8478 | if (seenMarkers) |
| 8479 | return nullptr; |
| 8480 | |
| 8481 | seenMarkers = true; |
| 8482 | break; |
| 8483 | default: |
| 8484 | return nullptr; |
| 8485 | } |
| 8486 | |
| 8487 | parsedValues->append(CSSPrimitiveValue::createIdentifier(value->id)); |
| 8488 | } while ((value = m_valueList->next())); |
| 8489 | |
| 8490 | // fill out the rest of the paint order |
| 8491 | if (!seenFill) |
| 8492 | parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueFill)); |
| 8493 | if (!seenStroke) |
| 8494 | parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueStroke)); |
| 8495 | if (!seenMarkers) |
| 8496 | parsedValues->append(CSSPrimitiveValue::createIdentifier(CSSValueMarkers)); |
| 8497 | |
| 8498 | return parsedValues.release(); |
| 8499 | } |
| 8500 | |
| 8501 | } // namespace WebCore |