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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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39 #include "wtf/RefCounted.h" | 39 #include "wtf/RefCounted.h" |
40 #include "wtf/RefPtr.h" | 40 #include "wtf/RefPtr.h" |
41 | 41 |
42 namespace WebCore { | 42 namespace WebCore { |
43 | 43 |
44 class CSSParserValueList; | 44 class CSSParserValueList; |
45 class CSSValueList; | 45 class CSSValueList; |
46 class CalculationValue; | 46 class CalculationValue; |
47 class CalcExpressionNode; | 47 class CalcExpressionNode; |
48 class Length; | 48 class Length; |
49 class RenderStyle; | |
50 | 49 |
51 enum CalculationCategory { | 50 enum CalculationCategory { |
52 CalcNumber = 0, | 51 CalcNumber = 0, |
53 CalcLength, | 52 CalcLength, |
54 CalcPercent, | 53 CalcPercent, |
55 CalcPercentNumber, | 54 CalcPercentNumber, |
56 CalcPercentLength, | 55 CalcPercentLength, |
57 CalcVariable, | 56 CalcVariable, |
58 CalcOther | 57 CalcOther |
59 }; | 58 }; |
60 | 59 |
61 class CSSCalcExpressionNode : public RefCounted<CSSCalcExpressionNode> { | 60 class CSSCalcExpressionNode : public RefCounted<CSSCalcExpressionNode> { |
62 public: | 61 public: |
63 enum Type { | 62 enum Type { |
64 CssCalcPrimitiveValue = 1, | 63 CssCalcPrimitiveValue = 1, |
65 CssCalcBinaryOperation | 64 CssCalcBinaryOperation |
66 }; | 65 }; |
67 | 66 |
68 virtual ~CSSCalcExpressionNode() = 0; | 67 virtual ~CSSCalcExpressionNode() = 0; |
69 virtual bool isZero() const = 0; | 68 virtual bool isZero() const = 0; |
70 virtual PassOwnPtr<CalcExpressionNode> toCalcValue(const RenderStyle*, const
RenderStyle* rootStyle, double zoom = 1.0) const = 0; | 69 virtual PassOwnPtr<CalcExpressionNode> toCalcValue(const CSSToLengthConversi
onData&) const = 0; |
71 virtual double doubleValue() const = 0; | 70 virtual double doubleValue() const = 0; |
72 virtual double computeLengthPx(const RenderStyle* currentStyle, const Render
Style* rootStyle, double multiplier = 1.0, bool computingFontSize = false) const
= 0; | 71 virtual double computeLengthPx(const CSSToLengthConversionData&) const = 0; |
73 virtual String customCSSText() const = 0; | 72 virtual String customCSSText() const = 0; |
74 virtual String serializeResolvingVariables(const HashMap<AtomicString, Strin
g>&) const = 0; | 73 virtual String serializeResolvingVariables(const HashMap<AtomicString, Strin
g>&) const = 0; |
75 virtual bool hasVariableReference() const = 0; | 74 virtual bool hasVariableReference() const = 0; |
76 virtual bool equals(const CSSCalcExpressionNode& other) const { return m_cat
egory == other.m_category && m_isInteger == other.m_isInteger; } | 75 virtual bool equals(const CSSCalcExpressionNode& other) const { return m_cat
egory == other.m_category && m_isInteger == other.m_isInteger; } |
77 virtual Type type() const = 0; | 76 virtual Type type() const = 0; |
78 | 77 |
79 CalculationCategory category() const { return m_category; } | 78 CalculationCategory category() const { return m_category; } |
80 virtual CSSPrimitiveValue::UnitTypes primitiveType() const = 0; | 79 virtual CSSPrimitiveValue::UnitTypes primitiveType() const = 0; |
81 bool isInteger() const { return m_isInteger; } | 80 bool isInteger() const { return m_isInteger; } |
82 | 81 |
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95 public: | 94 public: |
96 static PassRefPtr<CSSCalcValue> create(CSSParserString name, CSSParserValueL
ist*, ValueRange); | 95 static PassRefPtr<CSSCalcValue> create(CSSParserString name, CSSParserValueL
ist*, ValueRange); |
97 static PassRefPtr<CSSCalcValue> create(PassRefPtr<CSSCalcExpressionNode>, Va
lueRange = ValueRangeAll); | 96 static PassRefPtr<CSSCalcValue> create(PassRefPtr<CSSCalcExpressionNode>, Va
lueRange = ValueRangeAll); |
98 static PassRefPtr<CSSCalcValue> create(const CalculationValue* value, float
zoom) { return adoptRef(new CSSCalcValue(value, zoom)); } | 97 static PassRefPtr<CSSCalcValue> create(const CalculationValue* value, float
zoom) { return adoptRef(new CSSCalcValue(value, zoom)); } |
99 | 98 |
100 static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(PassRefPtr<CSS
PrimitiveValue>, bool isInteger = false); | 99 static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(PassRefPtr<CSS
PrimitiveValue>, bool isInteger = false); |
101 static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(PassRefPtr<CSS
CalcExpressionNode>, PassRefPtr<CSSCalcExpressionNode>, CalcOperator); | 100 static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(PassRefPtr<CSS
CalcExpressionNode>, PassRefPtr<CSSCalcExpressionNode>, CalcOperator); |
102 static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(const CalcExpr
essionNode*, float zoom); | 101 static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(const CalcExpr
essionNode*, float zoom); |
103 static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(const Length&,
float zoom); | 102 static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(const Length&,
float zoom); |
104 | 103 |
105 PassRefPtr<CalculationValue> toCalcValue(const RenderStyle* style, const Ren
derStyle* rootStyle, double zoom = 1.0) const | 104 PassRefPtr<CalculationValue> toCalcValue(const CSSToLengthConversionData& co
nversionData) const |
106 { | 105 { |
107 return CalculationValue::create(m_expression->toCalcValue(style, rootSty
le, zoom), m_nonNegative ? ValueRangeNonNegative : ValueRangeAll); | 106 return CalculationValue::create(m_expression->toCalcValue(conversionData
), m_nonNegative ? ValueRangeNonNegative : ValueRangeAll); |
108 } | 107 } |
109 CalculationCategory category() const { return m_expression->category(); } | 108 CalculationCategory category() const { return m_expression->category(); } |
110 bool isInt() const { return m_expression->isInteger(); } | 109 bool isInt() const { return m_expression->isInteger(); } |
111 double doubleValue() const; | 110 double doubleValue() const; |
112 bool isNegative() const { return m_expression->doubleValue() < 0; } | 111 bool isNegative() const { return m_expression->doubleValue() < 0; } |
113 ValueRange permittedValueRange() { return m_nonNegative ? ValueRangeNonNegat
ive : ValueRangeAll; } | 112 ValueRange permittedValueRange() { return m_nonNegative ? ValueRangeNonNegat
ive : ValueRangeAll; } |
114 double computeLengthPx(const RenderStyle* currentStyle, const RenderStyle* r
ootStyle, double multiplier = 1.0, bool computingFontSize = false) const; | 113 double computeLengthPx(const CSSToLengthConversionData&) const; |
115 CSSCalcExpressionNode* expressionNode() const { return m_expression.get(); } | 114 CSSCalcExpressionNode* expressionNode() const { return m_expression.get(); } |
116 | 115 |
117 String customCSSText() const; | 116 String customCSSText() const; |
118 bool equals(const CSSCalcValue&) const; | 117 bool equals(const CSSCalcValue&) const; |
119 String customSerializeResolvingVariables(const HashMap<AtomicString, String>
&) const; | 118 String customSerializeResolvingVariables(const HashMap<AtomicString, String>
&) const; |
120 bool hasVariableReference() const; | 119 bool hasVariableReference() const; |
121 | 120 |
122 private: | 121 private: |
123 CSSCalcValue(PassRefPtr<CSSCalcExpressionNode> expression, ValueRange range) | 122 CSSCalcValue(PassRefPtr<CSSCalcExpressionNode> expression, ValueRange range) |
124 : CSSValue(CalculationClass) | 123 : CSSValue(CalculationClass) |
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138 const RefPtr<CSSCalcExpressionNode> m_expression; | 137 const RefPtr<CSSCalcExpressionNode> m_expression; |
139 const bool m_nonNegative; | 138 const bool m_nonNegative; |
140 }; | 139 }; |
141 | 140 |
142 DEFINE_CSS_VALUE_TYPE_CASTS(CSSCalcValue, isCalcValue()); | 141 DEFINE_CSS_VALUE_TYPE_CASTS(CSSCalcValue, isCalcValue()); |
143 | 142 |
144 } // namespace WebCore | 143 } // namespace WebCore |
145 | 144 |
146 | 145 |
147 #endif // CSSCalculationValue_h | 146 #endif // CSSCalculationValue_h |
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