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All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#ifndef CSSCalculationValue_h 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#define CSSCalculationValue_h 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/css/CSSParserValues.h" 35521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles)#include "core/css/CSSPrimitiveValue.h" 3653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/css/CSSValue.h" 3753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/CalculationValue.h" 38e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch#include "wtf/PassOwnPtr.h" 39e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch#include "wtf/RefCounted.h" 40e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch#include "wtf/RefPtr.h" 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class CSSParserValueList; 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class CSSValueList; 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class RenderStyle; 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class CalculationValue; 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class CalcExpressionNode; 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)enum CalculationCategory { 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalcNumber = 0, 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalcLength, 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalcPercent, 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalcPercentNumber, 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalcPercentLength, 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalcVariable, 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalcOther 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 5902772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class CSSCalcExpressionNode : public RefCounted<CSSCalcExpressionNode> { 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 62926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) enum Type { 63926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) CssCalcPrimitiveValue = 1, 64926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) CssCalcBinaryOperation 65926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) }; 66926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual ~CSSCalcExpressionNode() = 0; 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual bool isZero() const = 0; 6983750176c3ee2cea66c8a9751271026a5901be3aBen Murdoch virtual PassOwnPtr<CalcExpressionNode> toCalcValue(const RenderStyle*, const RenderStyle* rootStyle, double zoom = 1.0) const = 0; 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual double doubleValue() const = 0; 7183750176c3ee2cea66c8a9751271026a5901be3aBen Murdoch virtual double computeLengthPx(const RenderStyle* currentStyle, const RenderStyle* rootStyle, double multiplier = 1.0, bool computingFontSize = false) const = 0; 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual String customCssText() const = 0; 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual String serializeResolvingVariables(const HashMap<AtomicString, String>&) const = 0; 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual bool hasVariableReference() const = 0; 75926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) virtual bool equals(const CSSCalcExpressionNode& other) const { return m_category == other.m_category && m_isInteger == other.m_isInteger; } 76926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) virtual Type type() const = 0; 77926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) 78521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) CalculationCategory category() const { return m_category; } 79521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) virtual CSSPrimitiveValue::UnitTypes primitiveType() const = 0; 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isInteger() const { return m_isInteger; } 81521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)protected: 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CSSCalcExpressionNode(CalculationCategory category, bool isInteger) 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : m_category(category) 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_isInteger(isInteger) 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) { 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 8802772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalculationCategory m_category; 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool m_isInteger; 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 92521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class CSSCalcValue : public CSSValue { 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) static PassRefPtr<CSSCalcValue> create(CSSParserString name, CSSParserValueList*, CalculationPermittedValueRange); 96e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch static PassRefPtr<CSSCalcValue> create(PassRefPtr<CSSCalcExpressionNode>, CalculationPermittedValueRange = CalculationRangeAll); 97e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch 98e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(PassRefPtr<CSSPrimitiveValue>, bool isInteger = false); 99e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch static PassRefPtr<CSSCalcExpressionNode> createExpressionNode(PassRefPtr<CSSCalcExpressionNode>, PassRefPtr<CSSCalcExpressionNode>, CalcOperator); 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 10183750176c3ee2cea66c8a9751271026a5901be3aBen Murdoch PassRefPtr<CalculationValue> toCalcValue(const RenderStyle* style, const RenderStyle* rootStyle, double zoom = 1.0) const 1025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) { 1035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return CalculationValue::create(m_expression->toCalcValue(style, rootStyle, zoom), m_nonNegative ? CalculationRangeNonNegative : CalculationRangeAll); 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CalculationCategory category() const { return m_expression->category(); } 10602772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch bool isInt() const { return m_expression->isInteger(); } 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) double doubleValue() const; 1085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isNegative() const { return m_expression->doubleValue() < 0; } 10983750176c3ee2cea66c8a9751271026a5901be3aBen Murdoch double computeLengthPx(const RenderStyle* currentStyle, const RenderStyle* rootStyle, double multiplier = 1.0, bool computingFontSize = false) const; 110e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch CSSCalcExpressionNode* expressionNode() const { return m_expression.get(); } 111e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch 1125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) String customCssText() const; 113926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) bool equals(const CSSCalcValue&) const; 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) String customSerializeResolvingVariables(const HashMap<AtomicString, String>&) const; 1155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool hasVariableReference() const; 1165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 11702772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdochprivate: 1185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CSSCalcValue(PassRefPtr<CSSCalcExpressionNode> expression, CalculationPermittedValueRange range) 1195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : CSSValue(CalculationClass) 1205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_expression(expression) 1215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_nonNegative(range == CalculationRangeNonNegative) 1225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) { 1235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 12402772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 1255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) double clampToPermittedRange(double) const; 1265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const RefPtr<CSSCalcExpressionNode> m_expression; 1285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const bool m_nonNegative; 1295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 130e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch 131e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdochinline CSSCalcValue* toCSSCalcValue(CSSValue* value) 132e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch{ 133e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch ASSERT_WITH_SECURITY_IMPLICATION(!value || value->isCalculationValue()); 134e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch return static_cast<CSSCalcValue*>(value); 135e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch} 136e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch 137e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdochinline const CSSCalcValue* toCSSCalcValue(const CSSValue* value) 138e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch{ 139e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch ASSERT_WITH_SECURITY_IMPLICATION(!value || value->isCalculationValue()); 140e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch return static_cast<const CSSCalcValue*>(value); 141e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch} 142e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch 1435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 1445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 145e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch 1465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif // CSSCalculationValue_h 147