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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef SimpleLength_h | |
| 6 #define SimpleLength_h | |
| 7 | |
| 8 #include "bindings/core/v8/ExceptionState.h" | |
| 9 #include "core/css/cssom/CSSLengthValue.h" | |
| 10 | |
| 11 namespace blink { | |
| 12 | |
| 13 class CSSPrimitiveValue; | |
| 14 | |
| 15 class CORE_EXPORT SimpleLength final : public CSSLengthValue { | |
| 16 WTF_MAKE_NONCOPYABLE(SimpleLength); | |
| 17 DEFINE_WRAPPERTYPEINFO(); | |
| 18 public: | |
| 19 static SimpleLength* create(double value, const String& type, ExceptionState
& exceptionState) | |
| 20 { | |
| 21 CSSPrimitiveValue::UnitType unit = unitFromName(type); | |
| 22 if (!isSupportedLengthUnit(unit)) { | |
| 23 exceptionState.throwTypeError("Invalid unit for SimpleLength: " + ty
pe); | |
| 24 return nullptr; | |
| 25 } | |
| 26 return new SimpleLength(value, unit); | |
| 27 } | |
| 28 | |
| 29 static SimpleLength* create(double value, CSSPrimitiveValue::UnitType type) | |
| 30 { | |
| 31 return new SimpleLength(value, type); | |
| 32 } | |
| 33 | |
| 34 bool containsPercent() const override; | |
| 35 | |
| 36 double value() const { return m_value; } | |
| 37 String unit() const { return String(CSSPrimitiveValue::unitTypeToString(m_un
it)); } | |
| 38 CSSPrimitiveValue::UnitType lengthUnit() const { return m_unit; } | |
| 39 | |
| 40 void setValue(double value) { m_value = value; } | |
| 41 | |
| 42 StyleValueType type() const override { return StyleValueType::SimpleLengthTy
pe; } | |
| 43 | |
| 44 CSSValue* toCSSValue() const override; | |
| 45 | |
| 46 protected: | |
| 47 virtual CSSLengthValue* addInternal(const CSSLengthValue* other, ExceptionSt
ate&); | |
| 48 virtual CSSLengthValue* subtractInternal(const CSSLengthValue* other, Except
ionState&); | |
| 49 virtual CSSLengthValue* multiplyInternal(double, ExceptionState&); | |
| 50 virtual CSSLengthValue* divideInternal(double, ExceptionState&); | |
| 51 | |
| 52 private: | |
| 53 SimpleLength(double value, CSSPrimitiveValue::UnitType unit) : CSSLengthValu
e(), m_unit(unit), m_value(value) {} | |
| 54 | |
| 55 CSSPrimitiveValue::UnitType m_unit; | |
| 56 double m_value; | |
| 57 }; | |
| 58 | |
| 59 #define DEFINE_SIMPLE_LENGTH_TYPE_CASTS(argumentType) \ | |
| 60 DEFINE_TYPE_CASTS(SimpleLength, argumentType, value, \ | |
| 61 value->type() == CSSLengthValue::StyleValueType::SimpleLengthType, \ | |
| 62 value.type() == CSSLengthValue::StyleValueType::SimpleLengthType) | |
| 63 | |
| 64 DEFINE_SIMPLE_LENGTH_TYPE_CASTS(CSSLengthValue); | |
| 65 DEFINE_SIMPLE_LENGTH_TYPE_CASTS(StyleValue); | |
| 66 | |
| 67 } // namespace blink | |
| 68 | |
| 69 #endif | |
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