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32 #include "core/css/CSSCalculationValue.h"
34 #include "core/css/CSSPrimitiveValueMappings.h"
35 #include "core/css/resolver/StyleResolver.h"
36 #include "wtf/MathExtras.h"
37 #include "wtf/OwnPtr.h"
38 #include "wtf/text/StringBuilder.h"
40 static const int maxExpressionDepth = 100;
50 static CalculationCategory unitCategory(CSSPrimitiveValue::UnitType type)
53 case CSSPrimitiveValue::CSS_NUMBER:
54 case CSSPrimitiveValue::CSS_PARSER_INTEGER:
56 case CSSPrimitiveValue::CSS_PERCENTAGE:
58 case CSSPrimitiveValue::CSS_EMS:
59 case CSSPrimitiveValue::CSS_EXS:
60 case CSSPrimitiveValue::CSS_PX:
61 case CSSPrimitiveValue::CSS_CM:
62 case CSSPrimitiveValue::CSS_MM:
63 case CSSPrimitiveValue::CSS_IN:
64 case CSSPrimitiveValue::CSS_PT:
65 case CSSPrimitiveValue::CSS_PC:
66 case CSSPrimitiveValue::CSS_REMS:
67 case CSSPrimitiveValue::CSS_CHS:
68 case CSSPrimitiveValue::CSS_VW:
69 case CSSPrimitiveValue::CSS_VH:
70 case CSSPrimitiveValue::CSS_VMIN:
71 case CSSPrimitiveValue::CSS_VMAX:
73 // FIXME: Support angle, time and frequency units.
74 // http://www.w3.org/TR/css3-values/#calc-notation
80 static bool hasDoubleValue(CSSPrimitiveValue::UnitType type)
83 case CSSPrimitiveValue::CSS_NUMBER:
84 case CSSPrimitiveValue::CSS_PARSER_INTEGER:
85 case CSSPrimitiveValue::CSS_PERCENTAGE:
86 case CSSPrimitiveValue::CSS_EMS:
87 case CSSPrimitiveValue::CSS_EXS:
88 case CSSPrimitiveValue::CSS_CHS:
89 case CSSPrimitiveValue::CSS_REMS:
90 case CSSPrimitiveValue::CSS_PX:
91 case CSSPrimitiveValue::CSS_CM:
92 case CSSPrimitiveValue::CSS_MM:
93 case CSSPrimitiveValue::CSS_IN:
94 case CSSPrimitiveValue::CSS_PT:
95 case CSSPrimitiveValue::CSS_PC:
96 case CSSPrimitiveValue::CSS_DEG:
97 case CSSPrimitiveValue::CSS_RAD:
98 case CSSPrimitiveValue::CSS_GRAD:
99 case CSSPrimitiveValue::CSS_MS:
100 case CSSPrimitiveValue::CSS_S:
101 case CSSPrimitiveValue::CSS_HZ:
102 case CSSPrimitiveValue::CSS_KHZ:
103 case CSSPrimitiveValue::CSS_DIMENSION:
104 case CSSPrimitiveValue::CSS_VW:
105 case CSSPrimitiveValue::CSS_VH:
106 case CSSPrimitiveValue::CSS_VMIN:
107 case CSSPrimitiveValue::CSS_VMAX:
108 case CSSPrimitiveValue::CSS_DPPX:
109 case CSSPrimitiveValue::CSS_DPI:
110 case CSSPrimitiveValue::CSS_DPCM:
111 case CSSPrimitiveValue::CSS_FR:
113 case CSSPrimitiveValue::CSS_UNKNOWN:
114 case CSSPrimitiveValue::CSS_STRING:
115 case CSSPrimitiveValue::CSS_URI:
116 case CSSPrimitiveValue::CSS_IDENT:
117 case CSSPrimitiveValue::CSS_ATTR:
118 case CSSPrimitiveValue::CSS_COUNTER:
119 case CSSPrimitiveValue::CSS_RECT:
120 case CSSPrimitiveValue::CSS_RGBCOLOR:
121 case CSSPrimitiveValue::CSS_PAIR:
122 case CSSPrimitiveValue::CSS_UNICODE_RANGE:
123 case CSSPrimitiveValue::CSS_PARSER_OPERATOR:
124 case CSSPrimitiveValue::CSS_PARSER_HEXCOLOR:
125 case CSSPrimitiveValue::CSS_PARSER_IDENTIFIER:
126 case CSSPrimitiveValue::CSS_TURN:
127 case CSSPrimitiveValue::CSS_COUNTER_NAME:
128 case CSSPrimitiveValue::CSS_SHAPE:
129 case CSSPrimitiveValue::CSS_QUAD:
130 case CSSPrimitiveValue::CSS_CALC:
131 case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_NUMBER:
132 case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_LENGTH:
133 case CSSPrimitiveValue::CSS_PROPERTY_ID:
134 case CSSPrimitiveValue::CSS_VALUE_ID:
137 ASSERT_NOT_REACHED();
141 static String buildCSSText(const String& expression)
143 StringBuilder result;
144 result.append("calc");
145 bool expressionHasSingleTerm = expression[0] != '(';
146 if (expressionHasSingleTerm)
148 result.append(expression);
149 if (expressionHasSingleTerm)
151 return result.toString();
154 String CSSCalcValue::customCSSText() const
156 return buildCSSText(m_expression->customCSSText());
159 bool CSSCalcValue::equals(const CSSCalcValue& other) const
161 return compareCSSValuePtr(m_expression, other.m_expression);
164 double CSSCalcValue::clampToPermittedRange(double value) const
166 return m_nonNegative && value < 0 ? 0 : value;
169 double CSSCalcValue::doubleValue() const
171 return clampToPermittedRange(m_expression->doubleValue());
174 double CSSCalcValue::computeLengthPx(const CSSToLengthConversionData& conversionData) const
176 return clampToPermittedRange(m_expression->computeLengthPx(conversionData));
179 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(CSSCalcExpressionNode)
181 class CSSCalcPrimitiveValue FINAL : public CSSCalcExpressionNode {
182 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
185 static PassRefPtrWillBeRawPtr<CSSCalcPrimitiveValue> create(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> value, bool isInteger)
187 return adoptRefWillBeNoop(new CSSCalcPrimitiveValue(value, isInteger));
190 static PassRefPtrWillBeRawPtr<CSSCalcPrimitiveValue> create(double value, CSSPrimitiveValue::UnitType type, bool isInteger)
192 if (std::isnan(value) || std::isinf(value))
194 return adoptRefWillBeNoop(new CSSCalcPrimitiveValue(CSSPrimitiveValue::create(value, type).get(), isInteger));
197 virtual bool isZero() const OVERRIDE
199 return !m_value->getDoubleValue();
202 virtual String customCSSText() const OVERRIDE
204 return m_value->cssText();
207 virtual void accumulatePixelsAndPercent(const CSSToLengthConversionData& conversionData, PixelsAndPercent& value, float multiplier) const OVERRIDE
209 switch (m_category) {
211 value.pixels += m_value->computeLength<float>(conversionData) * multiplier;
214 ASSERT(m_value->isPercentage());
215 value.percent += m_value->getDoubleValue() * multiplier;
218 ASSERT_NOT_REACHED();
222 virtual double doubleValue() const OVERRIDE
224 if (hasDoubleValue(primitiveType()))
225 return m_value->getDoubleValue();
226 ASSERT_NOT_REACHED();
230 virtual double computeLengthPx(const CSSToLengthConversionData& conversionData) const OVERRIDE
232 switch (m_category) {
234 return m_value->computeLength<double>(conversionData);
237 return m_value->getDoubleValue();
238 case CalcPercentLength:
239 case CalcPercentNumber:
241 ASSERT_NOT_REACHED();
244 ASSERT_NOT_REACHED();
248 virtual void accumulateLengthArray(CSSLengthArray& lengthArray, double multiplier) const
250 ASSERT(category() != CalcNumber);
251 m_value->accumulateLengthArray(lengthArray, multiplier);
254 virtual bool equals(const CSSCalcExpressionNode& other) const OVERRIDE
256 if (type() != other.type())
259 return compareCSSValuePtr(m_value, static_cast<const CSSCalcPrimitiveValue&>(other).m_value);
262 virtual Type type() const OVERRIDE { return CssCalcPrimitiveValue; }
263 virtual CSSPrimitiveValue::UnitType primitiveType() const OVERRIDE
265 return m_value->primitiveType();
269 virtual void trace(Visitor* visitor)
271 visitor->trace(m_value);
272 CSSCalcExpressionNode::trace(visitor);
276 CSSCalcPrimitiveValue(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> value, bool isInteger)
277 : CSSCalcExpressionNode(unitCategory(value->primitiveType()), isInteger)
282 RefPtrWillBeMember<CSSPrimitiveValue> m_value;
285 static const CalculationCategory addSubtractResult[CalcOther][CalcOther] = {
286 // CalcNumber CalcLength CalcPercent CalcPercentNumber CalcPercentLength
287 /* CalcNumber */ { CalcNumber, CalcOther, CalcPercentNumber, CalcPercentNumber, CalcOther },
288 /* CalcLength */ { CalcOther, CalcLength, CalcPercentLength, CalcOther, CalcPercentLength },
289 /* CalcPercent */ { CalcPercentNumber, CalcPercentLength, CalcPercent, CalcPercentNumber, CalcPercentLength },
290 /* CalcPercentNumber */ { CalcPercentNumber, CalcOther, CalcPercentNumber, CalcPercentNumber, CalcOther },
291 /* CalcPercentLength */ { CalcOther, CalcPercentLength, CalcPercentLength, CalcOther, CalcPercentLength },
294 static CalculationCategory determineCategory(const CSSCalcExpressionNode& leftSide, const CSSCalcExpressionNode& rightSide, CalcOperator op)
296 CalculationCategory leftCategory = leftSide.category();
297 CalculationCategory rightCategory = rightSide.category();
299 if (leftCategory == CalcOther || rightCategory == CalcOther)
305 return addSubtractResult[leftCategory][rightCategory];
307 if (leftCategory != CalcNumber && rightCategory != CalcNumber)
309 return leftCategory == CalcNumber ? rightCategory : leftCategory;
311 if (rightCategory != CalcNumber || rightSide.isZero())
316 ASSERT_NOT_REACHED();
320 static bool isIntegerResult(const CSSCalcExpressionNode* leftSide, const CSSCalcExpressionNode* rightSide, CalcOperator op)
322 // Not testing for actual integer values.
323 // Performs W3C spec's type checking for calc integers.
324 // http://www.w3.org/TR/css3-values/#calc-type-checking
325 return op != CalcDivide && leftSide->isInteger() && rightSide->isInteger();
328 class CSSCalcBinaryOperation FINAL : public CSSCalcExpressionNode {
330 static PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> create(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> leftSide, PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> rightSide, CalcOperator op)
332 ASSERT(leftSide->category() != CalcOther && rightSide->category() != CalcOther);
334 CalculationCategory newCategory = determineCategory(*leftSide, *rightSide, op);
335 if (newCategory == CalcOther)
338 return adoptRefWillBeNoop(new CSSCalcBinaryOperation(leftSide, rightSide, op, newCategory));
341 static PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> createSimplified(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> leftSide, PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> rightSide, CalcOperator op)
343 CalculationCategory leftCategory = leftSide->category();
344 CalculationCategory rightCategory = rightSide->category();
345 ASSERT(leftCategory != CalcOther && rightCategory != CalcOther);
347 bool isInteger = isIntegerResult(leftSide.get(), rightSide.get(), op);
350 if (leftCategory == CalcNumber && rightCategory == CalcNumber) {
351 CSSPrimitiveValue::UnitType evaluationType = isInteger ? CSSPrimitiveValue::CSS_PARSER_INTEGER : CSSPrimitiveValue::CSS_NUMBER;
352 return CSSCalcPrimitiveValue::create(evaluateOperator(leftSide->doubleValue(), rightSide->doubleValue(), op), evaluationType, isInteger);
355 // Simplify addition and subtraction between same types.
356 if (op == CalcAdd || op == CalcSubtract) {
357 if (leftCategory == rightSide->category()) {
358 CSSPrimitiveValue::UnitType leftType = leftSide->primitiveType();
359 if (hasDoubleValue(leftType)) {
360 CSSPrimitiveValue::UnitType rightType = rightSide->primitiveType();
361 if (leftType == rightType)
362 return CSSCalcPrimitiveValue::create(evaluateOperator(leftSide->doubleValue(), rightSide->doubleValue(), op), leftType, isInteger);
363 CSSPrimitiveValue::UnitCategory leftUnitCategory = CSSPrimitiveValue::unitCategory(leftType);
364 if (leftUnitCategory != CSSPrimitiveValue::UOther && leftUnitCategory == CSSPrimitiveValue::unitCategory(rightType)) {
365 CSSPrimitiveValue::UnitType canonicalType = CSSPrimitiveValue::canonicalUnitTypeForCategory(leftUnitCategory);
366 if (canonicalType != CSSPrimitiveValue::CSS_UNKNOWN) {
367 double leftValue = leftSide->doubleValue() * CSSPrimitiveValue::conversionToCanonicalUnitsScaleFactor(leftType);
368 double rightValue = rightSide->doubleValue() * CSSPrimitiveValue::conversionToCanonicalUnitsScaleFactor(rightType);
369 return CSSCalcPrimitiveValue::create(evaluateOperator(leftValue, rightValue, op), canonicalType, isInteger);
375 // Simplify multiplying or dividing by a number for simplifiable types.
376 ASSERT(op == CalcMultiply || op == CalcDivide);
377 CSSCalcExpressionNode* numberSide = getNumberSide(leftSide.get(), rightSide.get());
379 return create(leftSide, rightSide, op);
380 if (numberSide == leftSide && op == CalcDivide)
382 CSSCalcExpressionNode* otherSide = leftSide == numberSide ? rightSide.get() : leftSide.get();
384 double number = numberSide->doubleValue();
385 if (std::isnan(number) || std::isinf(number))
387 if (op == CalcDivide && !number)
390 CSSPrimitiveValue::UnitType otherType = otherSide->primitiveType();
391 if (hasDoubleValue(otherType))
392 return CSSCalcPrimitiveValue::create(evaluateOperator(otherSide->doubleValue(), number, op), otherType, isInteger);
395 return create(leftSide, rightSide, op);
398 virtual bool isZero() const OVERRIDE
400 return !doubleValue();
403 virtual void accumulatePixelsAndPercent(const CSSToLengthConversionData& conversionData, PixelsAndPercent& value, float multiplier) const OVERRIDE
405 switch (m_operator) {
407 m_leftSide->accumulatePixelsAndPercent(conversionData, value, multiplier);
408 m_rightSide->accumulatePixelsAndPercent(conversionData, value, multiplier);
411 m_leftSide->accumulatePixelsAndPercent(conversionData, value, multiplier);
412 m_rightSide->accumulatePixelsAndPercent(conversionData, value, -multiplier);
415 ASSERT((m_leftSide->category() == CalcNumber) != (m_rightSide->category() == CalcNumber));
416 if (m_leftSide->category() == CalcNumber)
417 m_rightSide->accumulatePixelsAndPercent(conversionData, value, multiplier * m_leftSide->doubleValue());
419 m_leftSide->accumulatePixelsAndPercent(conversionData, value, multiplier * m_rightSide->doubleValue());
422 ASSERT(m_rightSide->category() == CalcNumber);
423 m_leftSide->accumulatePixelsAndPercent(conversionData, value, multiplier / m_rightSide->doubleValue());
426 ASSERT_NOT_REACHED();
430 virtual double doubleValue() const OVERRIDE
432 return evaluate(m_leftSide->doubleValue(), m_rightSide->doubleValue());
435 virtual double computeLengthPx(const CSSToLengthConversionData& conversionData) const OVERRIDE
437 const double leftValue = m_leftSide->computeLengthPx(conversionData);
438 const double rightValue = m_rightSide->computeLengthPx(conversionData);
439 return evaluate(leftValue, rightValue);
442 virtual void accumulateLengthArray(CSSLengthArray& lengthArray, double multiplier) const
444 switch (m_operator) {
446 m_leftSide->accumulateLengthArray(lengthArray, multiplier);
447 m_rightSide->accumulateLengthArray(lengthArray, multiplier);
450 m_leftSide->accumulateLengthArray(lengthArray, multiplier);
451 m_rightSide->accumulateLengthArray(lengthArray, -multiplier);
454 ASSERT((m_leftSide->category() == CalcNumber) != (m_rightSide->category() == CalcNumber));
455 if (m_leftSide->category() == CalcNumber)
456 m_rightSide->accumulateLengthArray(lengthArray, multiplier * m_leftSide->doubleValue());
458 m_leftSide->accumulateLengthArray(lengthArray, multiplier * m_rightSide->doubleValue());
461 ASSERT(m_rightSide->category() == CalcNumber);
462 m_leftSide->accumulateLengthArray(lengthArray, multiplier / m_rightSide->doubleValue());
465 ASSERT_NOT_REACHED();
469 static String buildCSSText(const String& leftExpression, const String& rightExpression, CalcOperator op)
471 StringBuilder result;
473 result.append(leftExpression);
475 result.append(static_cast<char>(op));
477 result.append(rightExpression);
480 return result.toString();
483 virtual String customCSSText() const OVERRIDE
485 return buildCSSText(m_leftSide->customCSSText(), m_rightSide->customCSSText(), m_operator);
488 virtual bool equals(const CSSCalcExpressionNode& exp) const OVERRIDE
490 if (type() != exp.type())
493 const CSSCalcBinaryOperation& other = static_cast<const CSSCalcBinaryOperation&>(exp);
494 return compareCSSValuePtr(m_leftSide, other.m_leftSide)
495 && compareCSSValuePtr(m_rightSide, other.m_rightSide)
496 && m_operator == other.m_operator;
499 virtual Type type() const OVERRIDE { return CssCalcBinaryOperation; }
501 virtual CSSPrimitiveValue::UnitType primitiveType() const OVERRIDE
503 switch (m_category) {
505 ASSERT(m_leftSide->category() == CalcNumber && m_rightSide->category() == CalcNumber);
507 return CSSPrimitiveValue::CSS_PARSER_INTEGER;
508 return CSSPrimitiveValue::CSS_NUMBER;
511 if (m_leftSide->category() == CalcNumber)
512 return m_rightSide->primitiveType();
513 if (m_rightSide->category() == CalcNumber)
514 return m_leftSide->primitiveType();
515 CSSPrimitiveValue::UnitType leftType = m_leftSide->primitiveType();
516 if (leftType == m_rightSide->primitiveType())
518 return CSSPrimitiveValue::CSS_UNKNOWN;
520 case CalcPercentLength:
521 case CalcPercentNumber:
523 return CSSPrimitiveValue::CSS_UNKNOWN;
525 ASSERT_NOT_REACHED();
526 return CSSPrimitiveValue::CSS_UNKNOWN;
529 virtual void trace(Visitor* visitor)
531 visitor->trace(m_leftSide);
532 visitor->trace(m_rightSide);
533 CSSCalcExpressionNode::trace(visitor);
537 CSSCalcBinaryOperation(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> leftSide, PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> rightSide, CalcOperator op, CalculationCategory category)
538 : CSSCalcExpressionNode(category, isIntegerResult(leftSide.get(), rightSide.get(), op))
539 , m_leftSide(leftSide)
540 , m_rightSide(rightSide)
545 static CSSCalcExpressionNode* getNumberSide(CSSCalcExpressionNode* leftSide, CSSCalcExpressionNode* rightSide)
547 if (leftSide->category() == CalcNumber)
549 if (rightSide->category() == CalcNumber)
554 double evaluate(double leftSide, double rightSide) const
556 return evaluateOperator(leftSide, rightSide, m_operator);
559 static double evaluateOperator(double leftValue, double rightValue, CalcOperator op)
563 return leftValue + rightValue;
565 return leftValue - rightValue;
567 return leftValue * rightValue;
570 return leftValue / rightValue;
571 return std::numeric_limits<double>::quiet_NaN();
576 const RefPtrWillBeMember<CSSCalcExpressionNode> m_leftSide;
577 const RefPtrWillBeMember<CSSCalcExpressionNode> m_rightSide;
578 const CalcOperator m_operator;
581 static ParseState checkDepthAndIndex(int* depth, unsigned index, CSSParserValueList* tokens)
584 if (*depth > maxExpressionDepth)
586 if (index >= tokens->size())
591 class CSSCalcExpressionNodeParser {
594 PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> parseCalc(CSSParserValueList* tokens)
598 bool ok = parseValueExpression(tokens, 0, &index, &result);
599 ASSERT_WITH_SECURITY_IMPLICATION(index <= tokens->size());
600 if (!ok || index != tokens->size())
609 RefPtrWillBeMember<CSSCalcExpressionNode> value;
612 char operatorValue(CSSParserValueList* tokens, unsigned index)
614 if (index >= tokens->size())
616 CSSParserValue* value = tokens->valueAt(index);
617 if (value->unit != CSSParserValue::Operator)
620 return value->iValue;
623 bool parseValue(CSSParserValueList* tokens, unsigned* index, Value* result)
625 CSSParserValue* parserValue = tokens->valueAt(*index);
626 if (parserValue->unit == CSSParserValue::Operator)
629 RefPtrWillBeRawPtr<CSSValue> value = parserValue->createCSSValue();
630 if (!value || !value->isPrimitiveValue())
633 CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value.get());
634 if (unitCategory(primitiveValue->primitiveType()) == CalcOther)
637 result->value = CSSCalcPrimitiveValue::create(primitiveValue, parserValue->isInt);
643 bool parseValueTerm(CSSParserValueList* tokens, int depth, unsigned* index, Value* result)
645 if (checkDepthAndIndex(&depth, *index, tokens) != OK)
648 if (operatorValue(tokens, *index) == '(') {
649 unsigned currentIndex = *index + 1;
650 if (!parseValueExpression(tokens, depth, ¤tIndex, result))
653 if (operatorValue(tokens, currentIndex) != ')')
655 *index = currentIndex + 1;
659 return parseValue(tokens, index, result);
662 bool parseValueMultiplicativeExpression(CSSParserValueList* tokens, int depth, unsigned* index, Value* result)
664 if (checkDepthAndIndex(&depth, *index, tokens) != OK)
667 if (!parseValueTerm(tokens, depth, index, result))
670 while (*index < tokens->size() - 1) {
671 char operatorCharacter = operatorValue(tokens, *index);
672 if (operatorCharacter != CalcMultiply && operatorCharacter != CalcDivide)
677 if (!parseValueTerm(tokens, depth, index, &rhs))
680 result->value = CSSCalcBinaryOperation::createSimplified(result->value, rhs.value, static_cast<CalcOperator>(operatorCharacter));
685 ASSERT_WITH_SECURITY_IMPLICATION(*index <= tokens->size());
689 bool parseAdditiveValueExpression(CSSParserValueList* tokens, int depth, unsigned* index, Value* result)
691 if (checkDepthAndIndex(&depth, *index, tokens) != OK)
694 if (!parseValueMultiplicativeExpression(tokens, depth, index, result))
697 while (*index < tokens->size() - 1) {
698 char operatorCharacter = operatorValue(tokens, *index);
699 if (operatorCharacter != CalcAdd && operatorCharacter != CalcSubtract)
704 if (!parseValueMultiplicativeExpression(tokens, depth, index, &rhs))
707 result->value = CSSCalcBinaryOperation::createSimplified(result->value, rhs.value, static_cast<CalcOperator>(operatorCharacter));
712 ASSERT_WITH_SECURITY_IMPLICATION(*index <= tokens->size());
716 bool parseValueExpression(CSSParserValueList* tokens, int depth, unsigned* index, Value* result)
718 return parseAdditiveValueExpression(tokens, depth, index, result);
722 PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> CSSCalcValue::createExpressionNode(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> value, bool isInteger)
724 return CSSCalcPrimitiveValue::create(value, isInteger);
727 PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> CSSCalcValue::createExpressionNode(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> leftSide, PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> rightSide, CalcOperator op)
729 return CSSCalcBinaryOperation::create(leftSide, rightSide, op);
732 PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> CSSCalcValue::createExpressionNode(double pixels, double percent)
734 return createExpressionNode(
735 createExpressionNode(CSSPrimitiveValue::create(pixels, CSSPrimitiveValue::CSS_PX), pixels == trunc(pixels)),
736 createExpressionNode(CSSPrimitiveValue::create(percent, CSSPrimitiveValue::CSS_PERCENTAGE), percent == trunc(percent)),
740 PassRefPtrWillBeRawPtr<CSSCalcValue> CSSCalcValue::create(CSSParserString name, CSSParserValueList* parserValueList, ValueRange range)
742 CSSCalcExpressionNodeParser parser;
743 RefPtrWillBeRawPtr<CSSCalcExpressionNode> expression = nullptr;
745 if (equalIgnoringCase(name, "calc(") || equalIgnoringCase(name, "-webkit-calc("))
746 expression = parser.parseCalc(parserValueList);
747 // FIXME calc (http://webkit.org/b/16662) Add parsing for min and max here
749 return expression ? adoptRefWillBeNoop(new CSSCalcValue(expression, range)) : nullptr;
752 PassRefPtrWillBeRawPtr<CSSCalcValue> CSSCalcValue::create(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> expression, ValueRange range)
754 return adoptRefWillBeNoop(new CSSCalcValue(expression, range));
757 void CSSCalcValue::traceAfterDispatch(Visitor* visitor)
759 visitor->trace(m_expression);
760 CSSValue::traceAfterDispatch(visitor);
763 } // namespace WebCore