| /* |
| * Copyright (C) 2011, 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include "CSSValue.h" |
| #include "CSSValueKeywords.h" |
| #include "CalculationValue.h" |
| #include <wtf/Forward.h> |
| #include <wtf/Ref.h> |
| |
| namespace WebCore { |
| |
| class CSSCalcExpressionNode; |
| class CSSCalcSymbolTable; |
| class CSSParserTokenRange; |
| class CSSToLengthConversionData; |
| class RenderStyle; |
| |
| enum class CSSUnitType : uint8_t; |
| enum class CalculationCategory : uint8_t; |
| enum class ValueRange : uint8_t; |
| |
| class CSSCalcValue final : public CSSValue { |
| public: |
| static RefPtr<CSSCalcValue> create(CSSValueID function, const CSSParserTokenRange&, CalculationCategory destinationCategory, ValueRange, const CSSCalcSymbolTable&, bool allowsNegativePercentage = false); |
| static RefPtr<CSSCalcValue> create(CSSValueID function, const CSSParserTokenRange&, CalculationCategory destinationCategory, ValueRange); |
| static RefPtr<CSSCalcValue> create(const CalculationValue&, const RenderStyle&); |
| ~CSSCalcValue(); |
| |
| CalculationCategory category() const; |
| double doubleValue() const; |
| double computeLengthPx(const CSSToLengthConversionData&) const; |
| CSSUnitType primitiveType() const; |
| |
| Ref<CalculationValue> createCalculationValue(const CSSToLengthConversionData&) const; |
| void setPermittedValueRange(ValueRange); |
| |
| void collectDirectComputationalDependencies(HashSet<CSSPropertyID>&) const; |
| void collectDirectRootComputationalDependencies(HashSet<CSSPropertyID>&) const; |
| |
| String customCSSText() const; |
| bool equals(const CSSCalcValue&) const; |
| |
| static bool isCalcFunction(CSSValueID); |
| |
| void dump(TextStream&) const; |
| |
| private: |
| CSSCalcValue(Ref<CSSCalcExpressionNode>&&, bool shouldClampToNonNegative); |
| |
| double clampToPermittedRange(double) const; |
| |
| const Ref<CSSCalcExpressionNode> m_expression; |
| bool m_shouldClampToNonNegative; |
| }; |
| |
| TextStream& operator<<(TextStream&, const CSSCalcValue&); |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSCalcValue, isCalcValue()) |