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| 1 /* | 1 /* |
| 2 * Copyright (C) 2011, 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2011, 2012 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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| 44 TooDeep, | 44 TooDeep, |
| 45 NoMoreTokens | 45 NoMoreTokens |
| 46 }; | 46 }; |
| 47 | 47 |
| 48 namespace blink { | 48 namespace blink { |
| 49 | 49 |
| 50 static CalculationCategory unitCategory(CSSPrimitiveValue::UnitType type) | 50 static CalculationCategory unitCategory(CSSPrimitiveValue::UnitType type) |
| 51 { | 51 { |
| 52 switch (type) { | 52 switch (type) { |
| 53 case CSSPrimitiveValue::CSS_NUMBER: | 53 case CSSPrimitiveValue::CSS_NUMBER: |
| 54 case CSSPrimitiveValue::CSS_PARSER_INTEGER: | |
| 55 return CalcNumber; | 54 return CalcNumber; |
| 56 case CSSPrimitiveValue::CSS_PERCENTAGE: | 55 case CSSPrimitiveValue::CSS_PERCENTAGE: |
| 57 return CalcPercent; | 56 return CalcPercent; |
| 58 case CSSPrimitiveValue::CSS_EMS: | 57 case CSSPrimitiveValue::CSS_EMS: |
| 59 case CSSPrimitiveValue::CSS_EXS: | 58 case CSSPrimitiveValue::CSS_EXS: |
| 60 case CSSPrimitiveValue::CSS_PX: | 59 case CSSPrimitiveValue::CSS_PX: |
| 61 case CSSPrimitiveValue::CSS_CM: | 60 case CSSPrimitiveValue::CSS_CM: |
| 62 case CSSPrimitiveValue::CSS_MM: | 61 case CSSPrimitiveValue::CSS_MM: |
| 63 case CSSPrimitiveValue::CSS_IN: | 62 case CSSPrimitiveValue::CSS_IN: |
| 64 case CSSPrimitiveValue::CSS_PT: | 63 case CSSPrimitiveValue::CSS_PT: |
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| 83 return CalcFrequency; | 82 return CalcFrequency; |
| 84 default: | 83 default: |
| 85 return CalcOther; | 84 return CalcOther; |
| 86 } | 85 } |
| 87 } | 86 } |
| 88 | 87 |
| 89 static bool hasDoubleValue(CSSPrimitiveValue::UnitType type) | 88 static bool hasDoubleValue(CSSPrimitiveValue::UnitType type) |
| 90 { | 89 { |
| 91 switch (type) { | 90 switch (type) { |
| 92 case CSSPrimitiveValue::CSS_NUMBER: | 91 case CSSPrimitiveValue::CSS_NUMBER: |
| 93 case CSSPrimitiveValue::CSS_PARSER_INTEGER: | |
| 94 case CSSPrimitiveValue::CSS_PERCENTAGE: | 92 case CSSPrimitiveValue::CSS_PERCENTAGE: |
| 95 case CSSPrimitiveValue::CSS_EMS: | 93 case CSSPrimitiveValue::CSS_EMS: |
| 96 case CSSPrimitiveValue::CSS_EXS: | 94 case CSSPrimitiveValue::CSS_EXS: |
| 97 case CSSPrimitiveValue::CSS_CHS: | 95 case CSSPrimitiveValue::CSS_CHS: |
| 98 case CSSPrimitiveValue::CSS_REMS: | 96 case CSSPrimitiveValue::CSS_REMS: |
| 99 case CSSPrimitiveValue::CSS_PX: | 97 case CSSPrimitiveValue::CSS_PX: |
| 100 case CSSPrimitiveValue::CSS_CM: | 98 case CSSPrimitiveValue::CSS_CM: |
| 101 case CSSPrimitiveValue::CSS_MM: | 99 case CSSPrimitiveValue::CSS_MM: |
| 102 case CSSPrimitiveValue::CSS_IN: | 100 case CSSPrimitiveValue::CSS_IN: |
| 103 case CSSPrimitiveValue::CSS_PT: | 101 case CSSPrimitiveValue::CSS_PT: |
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| 123 case CSSPrimitiveValue::CSS_UNKNOWN: | 121 case CSSPrimitiveValue::CSS_UNKNOWN: |
| 124 case CSSPrimitiveValue::CSS_STRING: | 122 case CSSPrimitiveValue::CSS_STRING: |
| 125 case CSSPrimitiveValue::CSS_URI: | 123 case CSSPrimitiveValue::CSS_URI: |
| 126 case CSSPrimitiveValue::CSS_IDENT: | 124 case CSSPrimitiveValue::CSS_IDENT: |
| 127 case CSSPrimitiveValue::CSS_ATTR: | 125 case CSSPrimitiveValue::CSS_ATTR: |
| 128 case CSSPrimitiveValue::CSS_COUNTER: | 126 case CSSPrimitiveValue::CSS_COUNTER: |
| 129 case CSSPrimitiveValue::CSS_RECT: | 127 case CSSPrimitiveValue::CSS_RECT: |
| 130 case CSSPrimitiveValue::CSS_RGBCOLOR: | 128 case CSSPrimitiveValue::CSS_RGBCOLOR: |
| 131 case CSSPrimitiveValue::CSS_PAIR: | 129 case CSSPrimitiveValue::CSS_PAIR: |
| 132 case CSSPrimitiveValue::CSS_UNICODE_RANGE: | 130 case CSSPrimitiveValue::CSS_UNICODE_RANGE: |
| 133 case CSSPrimitiveValue::CSS_PARSER_OPERATOR: | |
| 134 case CSSPrimitiveValue::CSS_PARSER_HEXCOLOR: | 131 case CSSPrimitiveValue::CSS_PARSER_HEXCOLOR: |
| 135 case CSSPrimitiveValue::CSS_PARSER_IDENTIFIER: | |
| 136 case CSSPrimitiveValue::CSS_COUNTER_NAME: | 132 case CSSPrimitiveValue::CSS_COUNTER_NAME: |
| 137 case CSSPrimitiveValue::CSS_SHAPE: | 133 case CSSPrimitiveValue::CSS_SHAPE: |
| 138 case CSSPrimitiveValue::CSS_QUAD: | 134 case CSSPrimitiveValue::CSS_QUAD: |
| 139 case CSSPrimitiveValue::CSS_CALC: | 135 case CSSPrimitiveValue::CSS_CALC: |
| 140 case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_NUMBER: | 136 case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| 141 case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_LENGTH: | 137 case CSSPrimitiveValue::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| 142 case CSSPrimitiveValue::CSS_PROPERTY_ID: | 138 case CSSPrimitiveValue::CSS_PROPERTY_ID: |
| 143 case CSSPrimitiveValue::CSS_VALUE_ID: | 139 case CSSPrimitiveValue::CSS_VALUE_ID: |
| 144 return false; | 140 return false; |
| 145 }; | 141 }; |
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| 356 static PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> createSimplified(PassRe
fPtrWillBeRawPtr<CSSCalcExpressionNode> leftSide, PassRefPtrWillBeRawPtr<CSSCalc
ExpressionNode> rightSide, CalcOperator op) | 352 static PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> createSimplified(PassRe
fPtrWillBeRawPtr<CSSCalcExpressionNode> leftSide, PassRefPtrWillBeRawPtr<CSSCalc
ExpressionNode> rightSide, CalcOperator op) |
| 357 { | 353 { |
| 358 CalculationCategory leftCategory = leftSide->category(); | 354 CalculationCategory leftCategory = leftSide->category(); |
| 359 CalculationCategory rightCategory = rightSide->category(); | 355 CalculationCategory rightCategory = rightSide->category(); |
| 360 ASSERT(leftCategory != CalcOther && rightCategory != CalcOther); | 356 ASSERT(leftCategory != CalcOther && rightCategory != CalcOther); |
| 361 | 357 |
| 362 bool isInteger = isIntegerResult(leftSide.get(), rightSide.get(), op); | 358 bool isInteger = isIntegerResult(leftSide.get(), rightSide.get(), op); |
| 363 | 359 |
| 364 // Simplify numbers. | 360 // Simplify numbers. |
| 365 if (leftCategory == CalcNumber && rightCategory == CalcNumber) { | 361 if (leftCategory == CalcNumber && rightCategory == CalcNumber) { |
| 366 CSSPrimitiveValue::UnitType evaluationType = isInteger ? CSSPrimitiv
eValue::CSS_PARSER_INTEGER : CSSPrimitiveValue::CSS_NUMBER; | 362 return CSSCalcPrimitiveValue::create(evaluateOperator(leftSide->doub
leValue(), rightSide->doubleValue(), op), CSSPrimitiveValue::CSS_NUMBER, isInteg
er); |
| 367 return CSSCalcPrimitiveValue::create(evaluateOperator(leftSide->doub
leValue(), rightSide->doubleValue(), op), evaluationType, isInteger); | |
| 368 } | 363 } |
| 369 | 364 |
| 370 // Simplify addition and subtraction between same types. | 365 // Simplify addition and subtraction between same types. |
| 371 if (op == CalcAdd || op == CalcSubtract) { | 366 if (op == CalcAdd || op == CalcSubtract) { |
| 372 if (leftCategory == rightSide->category()) { | 367 if (leftCategory == rightSide->category()) { |
| 373 CSSPrimitiveValue::UnitType leftType = leftSide->primitiveType()
; | 368 CSSPrimitiveValue::UnitType leftType = leftSide->primitiveType()
; |
| 374 if (hasDoubleValue(leftType)) { | 369 if (hasDoubleValue(leftType)) { |
| 375 CSSPrimitiveValue::UnitType rightType = rightSide->primitive
Type(); | 370 CSSPrimitiveValue::UnitType rightType = rightSide->primitive
Type(); |
| 376 if (leftType == rightType) | 371 if (leftType == rightType) |
| 377 return CSSCalcPrimitiveValue::create(evaluateOperator(le
ftSide->doubleValue(), rightSide->doubleValue(), op), leftType, isInteger); | 372 return CSSCalcPrimitiveValue::create(evaluateOperator(le
ftSide->doubleValue(), rightSide->doubleValue(), op), leftType, isInteger); |
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| 511 && m_operator == other.m_operator; | 506 && m_operator == other.m_operator; |
| 512 } | 507 } |
| 513 | 508 |
| 514 virtual Type type() const OVERRIDE { return CssCalcBinaryOperation; } | 509 virtual Type type() const OVERRIDE { return CssCalcBinaryOperation; } |
| 515 | 510 |
| 516 virtual CSSPrimitiveValue::UnitType primitiveType() const OVERRIDE | 511 virtual CSSPrimitiveValue::UnitType primitiveType() const OVERRIDE |
| 517 { | 512 { |
| 518 switch (m_category) { | 513 switch (m_category) { |
| 519 case CalcNumber: | 514 case CalcNumber: |
| 520 ASSERT(m_leftSide->category() == CalcNumber && m_rightSide->category
() == CalcNumber); | 515 ASSERT(m_leftSide->category() == CalcNumber && m_rightSide->category
() == CalcNumber); |
| 521 if (m_isInteger) | |
| 522 return CSSPrimitiveValue::CSS_PARSER_INTEGER; | |
| 523 return CSSPrimitiveValue::CSS_NUMBER; | 516 return CSSPrimitiveValue::CSS_NUMBER; |
| 524 case CalcLength: | 517 case CalcLength: |
| 525 case CalcPercent: { | 518 case CalcPercent: { |
| 526 if (m_leftSide->category() == CalcNumber) | 519 if (m_leftSide->category() == CalcNumber) |
| 527 return m_rightSide->primitiveType(); | 520 return m_rightSide->primitiveType(); |
| 528 if (m_rightSide->category() == CalcNumber) | 521 if (m_rightSide->category() == CalcNumber) |
| 529 return m_leftSide->primitiveType(); | 522 return m_leftSide->primitiveType(); |
| 530 CSSPrimitiveValue::UnitType leftType = m_leftSide->primitiveType(); | 523 CSSPrimitiveValue::UnitType leftType = m_leftSide->primitiveType(); |
| 531 if (leftType == m_rightSide->primitiveType()) | 524 if (leftType == m_rightSide->primitiveType()) |
| 532 return leftType; | 525 return leftType; |
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| 644 bool parseValue(CSSParserValueList* tokens, unsigned* index, Value* result) | 637 bool parseValue(CSSParserValueList* tokens, unsigned* index, Value* result) |
| 645 { | 638 { |
| 646 CSSParserValue* parserValue = tokens->valueAt(*index); | 639 CSSParserValue* parserValue = tokens->valueAt(*index); |
| 647 if (parserValue->unit >= CSSParserValue::Operator) | 640 if (parserValue->unit >= CSSParserValue::Operator) |
| 648 return false; | 641 return false; |
| 649 | 642 |
| 650 CSSPrimitiveValue::UnitType type = static_cast<CSSPrimitiveValue::UnitTy
pe>(parserValue->unit); | 643 CSSPrimitiveValue::UnitType type = static_cast<CSSPrimitiveValue::UnitTy
pe>(parserValue->unit); |
| 651 if (unitCategory(type) == CalcOther) | 644 if (unitCategory(type) == CalcOther) |
| 652 return false; | 645 return false; |
| 653 | 646 |
| 654 if (type == CSSPrimitiveValue::CSS_NUMBER && parserValue->isInt) | |
| 655 type = CSSPrimitiveValue::CSS_PARSER_INTEGER; | |
| 656 | |
| 657 result->value = CSSCalcPrimitiveValue::create( | 647 result->value = CSSCalcPrimitiveValue::create( |
| 658 CSSPrimitiveValue::create(parserValue->fValue, type), parserValue->i
sInt); | 648 CSSPrimitiveValue::create(parserValue->fValue, type), parserValue->i
sInt); |
| 659 | 649 |
| 660 ++*index; | 650 ++*index; |
| 661 return true; | 651 return true; |
| 662 } | 652 } |
| 663 | 653 |
| 664 bool parseValueTerm(CSSParserValueList* tokens, int depth, unsigned* index,
Value* result) | 654 bool parseValueTerm(CSSParserValueList* tokens, int depth, unsigned* index,
Value* result) |
| 665 { | 655 { |
| 666 if (checkDepthAndIndex(&depth, *index, tokens) != OK) | 656 if (checkDepthAndIndex(&depth, *index, tokens) != OK) |
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| 775 return adoptRefWillBeNoop(new CSSCalcValue(expression, range)); | 765 return adoptRefWillBeNoop(new CSSCalcValue(expression, range)); |
| 776 } | 766 } |
| 777 | 767 |
| 778 void CSSCalcValue::traceAfterDispatch(Visitor* visitor) | 768 void CSSCalcValue::traceAfterDispatch(Visitor* visitor) |
| 779 { | 769 { |
| 780 visitor->trace(m_expression); | 770 visitor->trace(m_expression); |
| 781 CSSValue::traceAfterDispatch(visitor); | 771 CSSValue::traceAfterDispatch(visitor); |
| 782 } | 772 } |
| 783 | 773 |
| 784 } // namespace blink | 774 } // namespace blink |
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