| /* |
| * (C) 1999-2003 Lars Knoll (knoll@kde.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2012, 2013 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "CSSPrimitiveValue.h" |
| |
| #include "CSSBasicShapes.h" |
| #include "CSSCalcValue.h" |
| #include "CSSFontFamily.h" |
| #include "CSSHelper.h" |
| #include "CSSMarkup.h" |
| #include "CSSParserIdioms.h" |
| #include "CSSPrimitiveValueMappings.h" |
| #include "CSSPropertyNames.h" |
| #include "CSSToLengthConversionData.h" |
| #include "CSSValueKeywords.h" |
| #include "CalculationCategory.h" |
| #include "CalculationValue.h" |
| #include "Color.h" |
| #include "ColorSerialization.h" |
| #include "Counter.h" |
| #include "DeprecatedCSSOMPrimitiveValue.h" |
| #include "FontCascade.h" |
| #include "Length.h" |
| #include "NodeRenderStyle.h" |
| #include "Pair.h" |
| #include "Rect.h" |
| #include "RenderStyle.h" |
| #include "RenderView.h" |
| #include <wtf/NeverDestroyed.h> |
| #include <wtf/StdLibExtras.h> |
| #include <wtf/text/StringBuilder.h> |
| #include <wtf/text/StringConcatenateNumbers.h> |
| |
| namespace WebCore { |
| |
| static inline bool isValidCSSUnitTypeForDoubleConversion(CSSUnitType unitType) |
| { |
| switch (unitType) { |
| case CSSUnitType::CSS_CALC: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| case CSSUnitType::CSS_CHS: |
| case CSSUnitType::CSS_IC: |
| case CSSUnitType::CSS_CM: |
| case CSSUnitType::CSS_DEG: |
| case CSSUnitType::CSS_DIMENSION: |
| case CSSUnitType::CSS_DVB: |
| case CSSUnitType::CSS_DVH: |
| case CSSUnitType::CSS_DVI: |
| case CSSUnitType::CSS_DVMAX: |
| case CSSUnitType::CSS_DVMIN: |
| case CSSUnitType::CSS_DVW: |
| case CSSUnitType::CSS_EMS: |
| case CSSUnitType::CSS_EXS: |
| case CSSUnitType::CSS_FR: |
| case CSSUnitType::CSS_GRAD: |
| case CSSUnitType::CSS_HZ: |
| case CSSUnitType::CSS_IN: |
| case CSSUnitType::CSS_KHZ: |
| case CSSUnitType::CSS_MM: |
| case CSSUnitType::CSS_MS: |
| case CSSUnitType::CSS_NUMBER: |
| case CSSUnitType::CSS_INTEGER: |
| case CSSUnitType::CSS_PC: |
| case CSSUnitType::CSS_PERCENTAGE: |
| case CSSUnitType::CSS_PT: |
| case CSSUnitType::CSS_PX: |
| case CSSUnitType::CSS_Q: |
| case CSSUnitType::CSS_LHS: |
| case CSSUnitType::CSS_LVB: |
| case CSSUnitType::CSS_LVH: |
| case CSSUnitType::CSS_LVI: |
| case CSSUnitType::CSS_LVMAX: |
| case CSSUnitType::CSS_LVMIN: |
| case CSSUnitType::CSS_LVW: |
| case CSSUnitType::CSS_RLHS: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| case CSSUnitType::CSS_RAD: |
| case CSSUnitType::CSS_REMS: |
| case CSSUnitType::CSS_S: |
| case CSSUnitType::CSS_SVB: |
| case CSSUnitType::CSS_SVH: |
| case CSSUnitType::CSS_SVI: |
| case CSSUnitType::CSS_SVMAX: |
| case CSSUnitType::CSS_SVMIN: |
| case CSSUnitType::CSS_SVW: |
| case CSSUnitType::CSS_TURN: |
| case CSSUnitType::CSS_VB: |
| case CSSUnitType::CSS_VH: |
| case CSSUnitType::CSS_VI: |
| case CSSUnitType::CSS_VMAX: |
| case CSSUnitType::CSS_VMIN: |
| case CSSUnitType::CSS_VW: |
| case CSSUnitType::CSS_DPCM: |
| case CSSUnitType::CSS_DPI: |
| case CSSUnitType::CSS_DPPX: |
| case CSSUnitType::CSS_X: |
| return true; |
| case CSSUnitType::CSS_ATTR: |
| case CSSUnitType::CSS_COUNTER: |
| case CSSUnitType::CSS_COUNTER_NAME: |
| case CSSUnitType::CSS_FONT_FAMILY: |
| case CSSUnitType::CustomIdent: |
| case CSSUnitType::CSS_PAIR: |
| case CSSUnitType::CSS_PROPERTY_ID: |
| case CSSUnitType::CSS_QUAD: |
| case CSSUnitType::CSS_RECT: |
| case CSSUnitType::CSS_RGBCOLOR: |
| case CSSUnitType::CSS_SHAPE: |
| case CSSUnitType::CSS_STRING: |
| case CSSUnitType::CSS_UNICODE_RANGE: |
| case CSSUnitType::CSS_UNKNOWN: |
| case CSSUnitType::CSS_URI: |
| case CSSUnitType::CSS_VALUE_ID: |
| return false; |
| case CSSUnitType::CSS_IDENT: |
| break; |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return false; |
| } |
| |
| #if ASSERT_ENABLED |
| |
| static inline bool isStringType(CSSUnitType type) |
| { |
| switch (type) { |
| case CSSUnitType::CSS_STRING: |
| case CSSUnitType::CustomIdent: |
| case CSSUnitType::CSS_URI: |
| case CSSUnitType::CSS_ATTR: |
| case CSSUnitType::CSS_COUNTER_NAME: |
| return true; |
| case CSSUnitType::CSS_CALC: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| case CSSUnitType::CSS_CHS: |
| case CSSUnitType::CSS_IC: |
| case CSSUnitType::CSS_CM: |
| case CSSUnitType::CSS_COUNTER: |
| case CSSUnitType::CSS_DEG: |
| case CSSUnitType::CSS_DIMENSION: |
| case CSSUnitType::CSS_DPCM: |
| case CSSUnitType::CSS_DPI: |
| case CSSUnitType::CSS_DPPX: |
| case CSSUnitType::CSS_DVB: |
| case CSSUnitType::CSS_DVH: |
| case CSSUnitType::CSS_DVI: |
| case CSSUnitType::CSS_DVMAX: |
| case CSSUnitType::CSS_DVMIN: |
| case CSSUnitType::CSS_DVW: |
| case CSSUnitType::CSS_X: |
| case CSSUnitType::CSS_EMS: |
| case CSSUnitType::CSS_EXS: |
| case CSSUnitType::CSS_FONT_FAMILY: |
| case CSSUnitType::CSS_FR: |
| case CSSUnitType::CSS_GRAD: |
| case CSSUnitType::CSS_HZ: |
| case CSSUnitType::CSS_IDENT: |
| case CSSUnitType::CSS_IN: |
| case CSSUnitType::CSS_KHZ: |
| case CSSUnitType::CSS_LVB: |
| case CSSUnitType::CSS_LVH: |
| case CSSUnitType::CSS_LVI: |
| case CSSUnitType::CSS_LVMAX: |
| case CSSUnitType::CSS_LVMIN: |
| case CSSUnitType::CSS_LVW: |
| case CSSUnitType::CSS_MM: |
| case CSSUnitType::CSS_MS: |
| case CSSUnitType::CSS_NUMBER: |
| case CSSUnitType::CSS_INTEGER: |
| case CSSUnitType::CSS_PAIR: |
| case CSSUnitType::CSS_PC: |
| case CSSUnitType::CSS_PERCENTAGE: |
| case CSSUnitType::CSS_PROPERTY_ID: |
| case CSSUnitType::CSS_PT: |
| case CSSUnitType::CSS_PX: |
| case CSSUnitType::CSS_Q: |
| case CSSUnitType::CSS_LHS: |
| case CSSUnitType::CSS_RLHS: |
| case CSSUnitType::CSS_QUAD: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| case CSSUnitType::CSS_RAD: |
| case CSSUnitType::CSS_RECT: |
| case CSSUnitType::CSS_REMS: |
| case CSSUnitType::CSS_RGBCOLOR: |
| case CSSUnitType::CSS_S: |
| case CSSUnitType::CSS_SVB: |
| case CSSUnitType::CSS_SVH: |
| case CSSUnitType::CSS_SVI: |
| case CSSUnitType::CSS_SVMAX: |
| case CSSUnitType::CSS_SVMIN: |
| case CSSUnitType::CSS_SVW: |
| case CSSUnitType::CSS_SHAPE: |
| case CSSUnitType::CSS_TURN: |
| case CSSUnitType::CSS_UNICODE_RANGE: |
| case CSSUnitType::CSS_UNKNOWN: |
| case CSSUnitType::CSS_VALUE_ID: |
| case CSSUnitType::CSS_VB: |
| case CSSUnitType::CSS_VH: |
| case CSSUnitType::CSS_VI: |
| case CSSUnitType::CSS_VMAX: |
| case CSSUnitType::CSS_VMIN: |
| case CSSUnitType::CSS_VW: |
| return false; |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return false; |
| } |
| |
| #endif // ASSERT_ENABLED |
| |
| typedef HashMap<const CSSPrimitiveValue*, String> CSSTextCache; |
| static CSSTextCache& cssTextCache() |
| { |
| static NeverDestroyed<CSSTextCache> cache; |
| return cache; |
| } |
| |
| CSSUnitType CSSPrimitiveValue::primitiveType() const |
| { |
| // FIXME: Use a switch statement here. |
| |
| if (primitiveUnitType() == CSSUnitType::CSS_PROPERTY_ID || primitiveUnitType() == CSSUnitType::CSS_VALUE_ID || primitiveUnitType() == CSSUnitType::CustomIdent) |
| return CSSUnitType::CSS_IDENT; |
| |
| // Web-exposed content expects font family values to have CSSUnitType::CSS_STRING primitive type |
| // so we need to map our internal CSSUnitType::CSS_FONT_FAMILY type here. |
| if (primitiveUnitType() == CSSUnitType::CSS_FONT_FAMILY) |
| return CSSUnitType::CSS_STRING; |
| |
| if (primitiveUnitType() != CSSUnitType::CSS_CALC) |
| return primitiveUnitType(); |
| |
| switch (m_value.calc->category()) { |
| case CalculationCategory::Number: |
| return CSSUnitType::CSS_NUMBER; |
| case CalculationCategory::Percent: |
| return CSSUnitType::CSS_PERCENTAGE; |
| case CalculationCategory::PercentNumber: |
| return CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER; |
| case CalculationCategory::PercentLength: |
| return CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH; |
| case CalculationCategory::Length: |
| case CalculationCategory::Angle: |
| case CalculationCategory::Time: |
| case CalculationCategory::Frequency: |
| return m_value.calc->primitiveType(); |
| case CalculationCategory::Other: |
| return CSSUnitType::CSS_UNKNOWN; |
| } |
| return CSSUnitType::CSS_UNKNOWN; |
| } |
| |
| static const AtomString& propertyName(CSSPropertyID propertyID) |
| { |
| ASSERT_ARG(propertyID, (propertyID >= firstCSSProperty && propertyID < firstCSSProperty + numCSSProperties)); |
| |
| return getPropertyNameAtomString(propertyID); |
| } |
| |
| static const AtomString& valueName(CSSValueID valueID) |
| { |
| ASSERT_ARG(valueID, (valueID >= firstCSSValueKeyword && valueID <= lastCSSValueKeyword)); |
| |
| return getValueNameAtomString(valueID); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(CSSValueID valueID) |
| : CSSValue(PrimitiveClass) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = valueID; |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(CSSPropertyID propertyID) |
| : CSSValue(PrimitiveClass) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_PROPERTY_ID); |
| m_value.propertyID = propertyID; |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(double num, CSSUnitType type) |
| : CSSValue(PrimitiveClass) |
| { |
| setPrimitiveUnitType(type); |
| m_value.num = num; |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(const String& string, CSSUnitType type) |
| : CSSValue(PrimitiveClass) |
| { |
| ASSERT(isStringType(type)); |
| setPrimitiveUnitType(type); |
| if ((m_value.string = string.impl())) |
| m_value.string->ref(); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(const Color& color) |
| : CSSValue(PrimitiveClass) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_RGBCOLOR); |
| m_value.color = new Color(color); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(const Length& length) |
| : CSSValue(PrimitiveClass) |
| { |
| init(length); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(const Length& length, const RenderStyle& style) |
| : CSSValue(PrimitiveClass) |
| { |
| switch (length.type()) { |
| case LengthType::Auto: |
| case LengthType::Content: |
| case LengthType::Intrinsic: |
| case LengthType::MinIntrinsic: |
| case LengthType::MinContent: |
| case LengthType::MaxContent: |
| case LengthType::FillAvailable: |
| case LengthType::FitContent: |
| case LengthType::Percent: |
| init(length); |
| return; |
| case LengthType::Fixed: |
| setPrimitiveUnitType(CSSUnitType::CSS_PX); |
| m_value.num = adjustFloatForAbsoluteZoom(length.value(), style); |
| return; |
| case LengthType::Calculated: |
| init(CSSCalcValue::create(length.calculationValue(), style)); |
| return; |
| case LengthType::Relative: |
| case LengthType::Undefined: |
| ASSERT_NOT_REACHED(); |
| return; |
| } |
| ASSERT_NOT_REACHED(); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(const LengthSize& lengthSize, const RenderStyle& style) |
| : CSSValue(PrimitiveClass) |
| { |
| init(lengthSize, style); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(StaticCSSValueTag, CSSValueID valueID) |
| : CSSPrimitiveValue(valueID) |
| { |
| makeStatic(); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(StaticCSSValueTag, const Color& color) |
| : CSSPrimitiveValue(color) |
| { |
| makeStatic(); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(StaticCSSValueTag, double num, CSSUnitType type) |
| : CSSPrimitiveValue(num, type) |
| { |
| makeStatic(); |
| } |
| |
| CSSPrimitiveValue::CSSPrimitiveValue(StaticCSSValueTag, ImplicitInitialValueTag) |
| : CSSPrimitiveValue(CSSValueInitial) |
| { |
| m_isImplicit = true; |
| makeStatic(); |
| } |
| |
| void CSSPrimitiveValue::init(const Length& length) |
| { |
| switch (length.type()) { |
| case LengthType::Auto: |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = CSSValueAuto; |
| return; |
| case LengthType::Content: |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = CSSValueContent; |
| return; |
| case LengthType::Fixed: |
| setPrimitiveUnitType(CSSUnitType::CSS_PX); |
| m_value.num = length.value(); |
| return; |
| case LengthType::Intrinsic: |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = CSSValueIntrinsic; |
| return; |
| case LengthType::MinIntrinsic: |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = CSSValueMinIntrinsic; |
| return; |
| case LengthType::MinContent: |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = CSSValueMinContent; |
| return; |
| case LengthType::MaxContent: |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = CSSValueMaxContent; |
| return; |
| case LengthType::FillAvailable: |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = CSSValueWebkitFillAvailable; |
| return; |
| case LengthType::FitContent: |
| setPrimitiveUnitType(CSSUnitType::CSS_VALUE_ID); |
| m_value.valueID = CSSValueFitContent; |
| return; |
| case LengthType::Percent: |
| setPrimitiveUnitType(CSSUnitType::CSS_PERCENTAGE); |
| ASSERT(std::isfinite(length.percent())); |
| m_value.num = length.percent(); |
| return; |
| case LengthType::Calculated: |
| case LengthType::Relative: |
| case LengthType::Undefined: |
| ASSERT_NOT_REACHED(); |
| return; |
| } |
| ASSERT_NOT_REACHED(); |
| } |
| |
| void CSSPrimitiveValue::init(const LengthSize& lengthSize, const RenderStyle& style) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_PAIR); |
| m_hasCachedCSSText = false; |
| m_value.pair = &Pair::create(create(lengthSize.width, style), create(lengthSize.height, style)).leakRef(); |
| } |
| |
| void CSSPrimitiveValue::init(Ref<Counter>&& counter) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_COUNTER); |
| m_hasCachedCSSText = false; |
| m_value.counter = &counter.leakRef(); |
| } |
| |
| void CSSPrimitiveValue::init(Ref<Rect>&& r) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_RECT); |
| m_hasCachedCSSText = false; |
| m_value.rect = &r.leakRef(); |
| } |
| |
| void CSSPrimitiveValue::init(Ref<Quad>&& quad) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_QUAD); |
| m_hasCachedCSSText = false; |
| m_value.quad = &quad.leakRef(); |
| } |
| |
| void CSSPrimitiveValue::init(Ref<Pair>&& p) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_PAIR); |
| m_hasCachedCSSText = false; |
| m_value.pair = &p.leakRef(); |
| } |
| |
| void CSSPrimitiveValue::init(Ref<CSSBasicShape>&& shape) |
| { |
| setPrimitiveUnitType(CSSUnitType::CSS_SHAPE); |
| m_hasCachedCSSText = false; |
| m_value.shape = &shape.leakRef(); |
| } |
| |
| void CSSPrimitiveValue::init(RefPtr<CSSCalcValue>&& c) |
| { |
| // FIXME (231111): This init should take Ref<CSSCalcValue> instead. |
| if (!c) |
| return; |
| setPrimitiveUnitType(CSSUnitType::CSS_CALC); |
| m_hasCachedCSSText = false; |
| m_value.calc = c.leakRef(); |
| } |
| |
| CSSPrimitiveValue::~CSSPrimitiveValue() |
| { |
| cleanup(); |
| } |
| |
| void CSSPrimitiveValue::cleanup() |
| { |
| auto type = primitiveUnitType(); |
| switch (type) { |
| case CSSUnitType::CSS_STRING: |
| case CSSUnitType::CustomIdent: |
| case CSSUnitType::CSS_URI: |
| case CSSUnitType::CSS_ATTR: |
| case CSSUnitType::CSS_COUNTER_NAME: |
| if (m_value.string) |
| m_value.string->deref(); |
| break; |
| case CSSUnitType::CSS_COUNTER: |
| m_value.counter->deref(); |
| break; |
| case CSSUnitType::CSS_RECT: |
| m_value.rect->deref(); |
| break; |
| case CSSUnitType::CSS_QUAD: |
| m_value.quad->deref(); |
| break; |
| case CSSUnitType::CSS_PAIR: |
| m_value.pair->deref(); |
| break; |
| case CSSUnitType::CSS_CALC: |
| if (m_value.calc) |
| m_value.calc->deref(); |
| break; |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| ASSERT_NOT_REACHED(); |
| break; |
| case CSSUnitType::CSS_SHAPE: |
| m_value.shape->deref(); |
| break; |
| case CSSUnitType::CSS_FONT_FAMILY: |
| ASSERT(m_value.fontFamily); |
| delete m_value.fontFamily; |
| m_value.fontFamily = nullptr; |
| break; |
| case CSSUnitType::CSS_RGBCOLOR: |
| ASSERT(m_value.color); |
| delete m_value.color; |
| m_value.color = nullptr; |
| break; |
| case CSSUnitType::CSS_DIMENSION: |
| case CSSUnitType::CSS_NUMBER: |
| case CSSUnitType::CSS_INTEGER: |
| case CSSUnitType::CSS_PERCENTAGE: |
| case CSSUnitType::CSS_EMS: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| case CSSUnitType::CSS_EXS: |
| case CSSUnitType::CSS_REMS: |
| case CSSUnitType::CSS_CHS: |
| case CSSUnitType::CSS_IC: |
| case CSSUnitType::CSS_PX: |
| case CSSUnitType::CSS_CM: |
| case CSSUnitType::CSS_MM: |
| case CSSUnitType::CSS_IN: |
| case CSSUnitType::CSS_PT: |
| case CSSUnitType::CSS_PC: |
| case CSSUnitType::CSS_DEG: |
| case CSSUnitType::CSS_RAD: |
| case CSSUnitType::CSS_GRAD: |
| case CSSUnitType::CSS_MS: |
| case CSSUnitType::CSS_S: |
| case CSSUnitType::CSS_HZ: |
| case CSSUnitType::CSS_KHZ: |
| case CSSUnitType::CSS_TURN: |
| case CSSUnitType::CSS_VW: |
| case CSSUnitType::CSS_VH: |
| case CSSUnitType::CSS_VMIN: |
| case CSSUnitType::CSS_VMAX: |
| case CSSUnitType::CSS_VB: |
| case CSSUnitType::CSS_VI: |
| case CSSUnitType::CSS_SVW: |
| case CSSUnitType::CSS_SVH: |
| case CSSUnitType::CSS_SVMIN: |
| case CSSUnitType::CSS_SVMAX: |
| case CSSUnitType::CSS_SVB: |
| case CSSUnitType::CSS_SVI: |
| case CSSUnitType::CSS_LVW: |
| case CSSUnitType::CSS_LVH: |
| case CSSUnitType::CSS_LVMIN: |
| case CSSUnitType::CSS_LVMAX: |
| case CSSUnitType::CSS_LVB: |
| case CSSUnitType::CSS_LVI: |
| case CSSUnitType::CSS_DVW: |
| case CSSUnitType::CSS_DVH: |
| case CSSUnitType::CSS_DVMIN: |
| case CSSUnitType::CSS_DVMAX: |
| case CSSUnitType::CSS_DVB: |
| case CSSUnitType::CSS_DVI: |
| case CSSUnitType::CSS_DPPX: |
| case CSSUnitType::CSS_X: |
| case CSSUnitType::CSS_DPI: |
| case CSSUnitType::CSS_DPCM: |
| case CSSUnitType::CSS_FR: |
| case CSSUnitType::CSS_Q: |
| case CSSUnitType::CSS_LHS: |
| case CSSUnitType::CSS_RLHS: |
| case CSSUnitType::CSS_IDENT: |
| case CSSUnitType::CSS_UNKNOWN: |
| case CSSUnitType::CSS_UNICODE_RANGE: |
| case CSSUnitType::CSS_PROPERTY_ID: |
| case CSSUnitType::CSS_VALUE_ID: |
| ASSERT(!isStringType(type)); |
| break; |
| } |
| setPrimitiveUnitType(CSSUnitType::CSS_UNKNOWN); |
| if (m_hasCachedCSSText) { |
| cssTextCache().remove(this); |
| m_hasCachedCSSText = false; |
| } |
| } |
| |
| double CSSPrimitiveValue::computeDegrees() const |
| { |
| return computeDegrees(primitiveType(), doubleValue()); |
| } |
| |
| template<> int CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData) const |
| { |
| return roundForImpreciseConversion<int>(computeLengthDouble(conversionData)); |
| } |
| |
| template<> unsigned CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData) const |
| { |
| return roundForImpreciseConversion<unsigned>(computeLengthDouble(conversionData)); |
| } |
| |
| template<> Length CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData) const |
| { |
| return Length(clampTo<double>(computeLengthDouble(conversionData), minValueForCssLength, maxValueForCssLength), LengthType::Fixed); |
| } |
| |
| template<> short CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData) const |
| { |
| return roundForImpreciseConversion<short>(computeLengthDouble(conversionData)); |
| } |
| |
| template<> unsigned short CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData) const |
| { |
| return roundForImpreciseConversion<unsigned short>(computeLengthDouble(conversionData)); |
| } |
| |
| template<> float CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData) const |
| { |
| return static_cast<float>(computeLengthDouble(conversionData)); |
| } |
| |
| template<> double CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData) const |
| { |
| return computeLengthDouble(conversionData); |
| } |
| |
| template<> LayoutUnit CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData) const |
| { |
| return LayoutUnit(computeLengthDouble(conversionData)); |
| } |
| |
| double CSSPrimitiveValue::computeLengthDouble(const CSSToLengthConversionData& conversionData) const |
| { |
| if (primitiveUnitType() == CSSUnitType::CSS_CALC) { |
| // The multiplier and factor is applied to each value in the calc expression individually |
| return m_value.calc->computeLengthPx(conversionData); |
| } |
| |
| return computeNonCalcLengthDouble(conversionData, primitiveType(), m_value.num); |
| } |
| |
| static constexpr double mmPerInch = 25.4; |
| static constexpr double cmPerInch = 2.54; |
| static constexpr double QPerInch = 25.4 * 4.0; |
| |
| static double lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis logicalAxis, const FloatSize& size, const RenderStyle* rootElementStyle) |
| { |
| if (!rootElementStyle) |
| return 0; |
| |
| switch (mapLogicalAxisToPhysicalAxis(makeTextFlow(rootElementStyle->writingMode(), rootElementStyle->direction()), logicalAxis)) { |
| case BoxAxis::Horizontal: |
| return size.width(); |
| |
| case BoxAxis::Vertical: |
| return size.height(); |
| } |
| |
| ASSERT_NOT_REACHED(); |
| } |
| |
| static double lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis logicalAxis, const FloatSize& size, const RenderView& renderView) |
| { |
| const auto* rootElement = renderView.document().documentElement(); |
| if (!rootElement) |
| return 0; |
| |
| return lengthOfViewportPhysicalAxisForLogicalAxis(logicalAxis, size, rootElement->renderStyle()); |
| } |
| |
| double CSSPrimitiveValue::computeUnzoomedNonCalcLengthDouble(CSSUnitType primitiveType, double value, CSSPropertyID propertyToCompute, const FontMetrics* fontMetrics, const FontCascadeDescription* fontDescription, const FontCascadeDescription* rootFontDescription, const RenderView* renderView) |
| { |
| switch (primitiveType) { |
| case CSSUnitType::CSS_EMS: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| ASSERT(fontDescription); |
| return ((propertyToCompute == CSSPropertyFontSize) ? fontDescription->specifiedSize() : fontDescription->computedSize()) * value; |
| case CSSUnitType::CSS_EXS: |
| ASSERT(fontMetrics); |
| if (fontMetrics->hasXHeight()) |
| return fontMetrics->xHeight() * value; |
| ASSERT(fontDescription); |
| return ((propertyToCompute == CSSPropertyFontSize) ? fontDescription->specifiedSize() : fontDescription->computedSize()) / 2.0 * value; |
| case CSSUnitType::CSS_REMS: |
| if (!rootFontDescription) |
| return value; |
| return ((propertyToCompute == CSSPropertyFontSize) ? rootFontDescription->specifiedSize() : rootFontDescription->computedSize()) * value; |
| case CSSUnitType::CSS_CHS: |
| ASSERT(fontMetrics); |
| return fontMetrics->zeroWidth() * value; |
| case CSSUnitType::CSS_IC: |
| ASSERT(fontMetrics); |
| return fontMetrics->ideogramWidth() * value; |
| case CSSUnitType::CSS_PX: |
| return value; |
| case CSSUnitType::CSS_CM: |
| return cssPixelsPerInch / cmPerInch * value; |
| case CSSUnitType::CSS_MM: |
| return cssPixelsPerInch / mmPerInch * value; |
| case CSSUnitType::CSS_Q: |
| return cssPixelsPerInch / QPerInch * value; |
| case CSSUnitType::CSS_LHS: |
| case CSSUnitType::CSS_RLHS: |
| ASSERT_NOT_REACHED(); |
| return -1.0; |
| case CSSUnitType::CSS_IN: |
| return cssPixelsPerInch * value; |
| case CSSUnitType::CSS_PT: |
| return cssPixelsPerInch / 72.0 * value; |
| case CSSUnitType::CSS_PC: |
| // 1 pc == 12 pt |
| return cssPixelsPerInch * 12.0 / 72.0 * value; |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| ASSERT_NOT_REACHED(); |
| return -1.0; |
| case CSSUnitType::CSS_VH: |
| return renderView ? renderView->sizeForCSSDefaultViewportUnits().height() / 100.0 * value : 0; |
| case CSSUnitType::CSS_VW: |
| return renderView ? renderView->sizeForCSSDefaultViewportUnits().width() / 100.0 * value : 0; |
| case CSSUnitType::CSS_VMAX: |
| return renderView ? renderView->sizeForCSSDefaultViewportUnits().maxDimension() / 100.0 * value : value; |
| case CSSUnitType::CSS_VMIN: |
| return renderView ? renderView->sizeForCSSDefaultViewportUnits().minDimension() / 100.0 * value : value; |
| case CSSUnitType::CSS_VB: |
| return renderView ? lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Block, renderView->sizeForCSSDefaultViewportUnits(), *renderView) / 100.0 * value : 0; |
| case CSSUnitType::CSS_VI: |
| return renderView ? lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Inline, renderView->sizeForCSSDefaultViewportUnits(), *renderView) / 100.0 * value : 0; |
| case CSSUnitType::CSS_SVH: |
| return renderView ? renderView->sizeForCSSSmallViewportUnits().height() / 100.0 * value : 0; |
| case CSSUnitType::CSS_SVW: |
| return renderView ? renderView->sizeForCSSSmallViewportUnits().width() / 100.0 * value : 0; |
| case CSSUnitType::CSS_SVMAX: |
| return renderView ? renderView->sizeForCSSSmallViewportUnits().maxDimension() / 100.0 * value : value; |
| case CSSUnitType::CSS_SVMIN: |
| return renderView ? renderView->sizeForCSSSmallViewportUnits().minDimension() / 100.0 * value : value; |
| case CSSUnitType::CSS_SVB: |
| return renderView ? lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Block, renderView->sizeForCSSSmallViewportUnits(), *renderView) / 100.0 * value : 0; |
| case CSSUnitType::CSS_SVI: |
| return renderView ? lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Inline, renderView->sizeForCSSSmallViewportUnits(), *renderView) / 100.0 * value : 0; |
| case CSSUnitType::CSS_LVH: |
| return renderView ? renderView->sizeForCSSLargeViewportUnits().height() / 100.0 * value : 0; |
| case CSSUnitType::CSS_LVW: |
| return renderView ? renderView->sizeForCSSLargeViewportUnits().width() / 100.0 * value : 0; |
| case CSSUnitType::CSS_LVMAX: |
| return renderView ? renderView->sizeForCSSLargeViewportUnits().maxDimension() / 100.0 * value : value; |
| case CSSUnitType::CSS_LVMIN: |
| return renderView ? renderView->sizeForCSSLargeViewportUnits().minDimension() / 100.0 * value : value; |
| case CSSUnitType::CSS_LVB: |
| return renderView ? lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Block, renderView->sizeForCSSLargeViewportUnits(), *renderView) / 100.0 * value : 0; |
| case CSSUnitType::CSS_LVI: |
| return renderView ? lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Inline, renderView->sizeForCSSLargeViewportUnits(), *renderView) / 100.0 * value : 0; |
| case CSSUnitType::CSS_DVH: |
| return renderView ? renderView->sizeForCSSDynamicViewportUnits().height() / 100.0 * value : 0; |
| case CSSUnitType::CSS_DVW: |
| return renderView ? renderView->sizeForCSSDynamicViewportUnits().width() / 100.0 * value : 0; |
| case CSSUnitType::CSS_DVMAX: |
| return renderView ? renderView->sizeForCSSDynamicViewportUnits().maxDimension() / 100.0 * value : value; |
| case CSSUnitType::CSS_DVMIN: |
| return renderView ? renderView->sizeForCSSDynamicViewportUnits().minDimension() / 100.0 * value : value; |
| case CSSUnitType::CSS_DVB: |
| return renderView ? lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Block, renderView->sizeForCSSDynamicViewportUnits(), *renderView) / 100.0 * value : 0; |
| case CSSUnitType::CSS_DVI: |
| return renderView ? lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Inline, renderView->sizeForCSSDynamicViewportUnits(), *renderView) / 100.0 * value : 0; |
| default: |
| ASSERT_NOT_REACHED(); |
| return -1.0; |
| } |
| } |
| |
| double CSSPrimitiveValue::computeNonCalcLengthDouble(const CSSToLengthConversionData& conversionData, CSSUnitType primitiveType, double value) |
| { |
| switch (primitiveType) { |
| case CSSUnitType::CSS_EMS: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| ASSERT(conversionData.style()); |
| value = computeUnzoomedNonCalcLengthDouble(primitiveType, value, conversionData.propertyToCompute(), nullptr, &conversionData.style()->fontDescription()); |
| break; |
| |
| case CSSUnitType::CSS_EXS: |
| // FIXME: We have a bug right now where the zoom will be applied twice to EX units. |
| // We really need to compute EX using fontMetrics for the original specifiedSize and not use |
| // our actual constructed rendering font. |
| ASSERT(conversionData.style()); |
| value = computeUnzoomedNonCalcLengthDouble(primitiveType, value, conversionData.propertyToCompute(), &conversionData.style()->fontMetrics(), &conversionData.style()->fontDescription()); |
| break; |
| |
| case CSSUnitType::CSS_REMS: |
| value = computeUnzoomedNonCalcLengthDouble(primitiveType, value, conversionData.propertyToCompute(), nullptr, nullptr, conversionData.rootStyle() ? &conversionData.rootStyle()->fontDescription() : nullptr); |
| break; |
| |
| case CSSUnitType::CSS_CHS: |
| case CSSUnitType::CSS_IC: |
| ASSERT(conversionData.style()); |
| value = computeUnzoomedNonCalcLengthDouble(primitiveType, value, conversionData.propertyToCompute(), &conversionData.style()->fontMetrics()); |
| break; |
| |
| case CSSUnitType::CSS_PX: |
| case CSSUnitType::CSS_CM: |
| case CSSUnitType::CSS_MM: |
| case CSSUnitType::CSS_Q: |
| case CSSUnitType::CSS_IN: |
| case CSSUnitType::CSS_PT: |
| case CSSUnitType::CSS_PC: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| value = computeUnzoomedNonCalcLengthDouble(primitiveType, value, conversionData.propertyToCompute()); |
| break; |
| |
| case CSSUnitType::CSS_VH: |
| return value * conversionData.defaultViewportFactor().height(); |
| |
| case CSSUnitType::CSS_VW: |
| return value * conversionData.defaultViewportFactor().width(); |
| |
| case CSSUnitType::CSS_VMAX: |
| return value * conversionData.defaultViewportFactor().maxDimension(); |
| |
| case CSSUnitType::CSS_VMIN: |
| return value * conversionData.defaultViewportFactor().minDimension(); |
| |
| case CSSUnitType::CSS_VB: |
| return value * lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Block, conversionData.defaultViewportFactor(), conversionData.rootStyle()); |
| |
| case CSSUnitType::CSS_VI: |
| return value * lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Inline, conversionData.defaultViewportFactor(), conversionData.rootStyle()); |
| |
| case CSSUnitType::CSS_SVH: |
| return value * conversionData.smallViewportFactor().height(); |
| |
| case CSSUnitType::CSS_SVW: |
| return value * conversionData.smallViewportFactor().width(); |
| |
| case CSSUnitType::CSS_SVMAX: |
| return value * conversionData.smallViewportFactor().maxDimension(); |
| |
| case CSSUnitType::CSS_SVMIN: |
| return value * conversionData.smallViewportFactor().minDimension(); |
| |
| case CSSUnitType::CSS_SVB: |
| return value * lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Block, conversionData.smallViewportFactor(), conversionData.rootStyle()); |
| |
| case CSSUnitType::CSS_SVI: |
| return value * lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Inline, conversionData.smallViewportFactor(), conversionData.rootStyle()); |
| |
| case CSSUnitType::CSS_LVH: |
| return value * conversionData.largeViewportFactor().height(); |
| |
| case CSSUnitType::CSS_LVW: |
| return value * conversionData.largeViewportFactor().width(); |
| |
| case CSSUnitType::CSS_LVMAX: |
| return value * conversionData.largeViewportFactor().maxDimension(); |
| |
| case CSSUnitType::CSS_LVMIN: |
| return value * conversionData.largeViewportFactor().minDimension(); |
| |
| case CSSUnitType::CSS_LVB: |
| return value * lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Block, conversionData.largeViewportFactor(), conversionData.rootStyle()); |
| |
| case CSSUnitType::CSS_LVI: |
| return value * lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Inline, conversionData.largeViewportFactor(), conversionData.rootStyle()); |
| |
| case CSSUnitType::CSS_DVH: |
| return value * conversionData.dynamicViewportFactor().height(); |
| |
| case CSSUnitType::CSS_DVW: |
| return value * conversionData.dynamicViewportFactor().width(); |
| |
| case CSSUnitType::CSS_DVMAX: |
| return value * conversionData.dynamicViewportFactor().maxDimension(); |
| |
| case CSSUnitType::CSS_DVMIN: |
| return value * conversionData.dynamicViewportFactor().minDimension(); |
| |
| case CSSUnitType::CSS_DVB: |
| return value * lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Block, conversionData.dynamicViewportFactor(), conversionData.rootStyle()); |
| |
| case CSSUnitType::CSS_DVI: |
| return value * lengthOfViewportPhysicalAxisForLogicalAxis(LogicalBoxAxis::Inline, conversionData.dynamicViewportFactor(), conversionData.rootStyle()); |
| |
| case CSSUnitType::CSS_LHS: |
| ASSERT(conversionData.style()); |
| if (conversionData.computingLineHeight() || conversionData.computingFontSize()) { |
| // Try to get the parent's computed line-height, or fall back to the initial line-height of this element's font spacing. |
| value *= conversionData.parentStyle() ? conversionData.parentStyle()->computedLineHeight() : conversionData.style()->fontMetrics().lineSpacing(); |
| } else |
| value *= conversionData.style()->computedLineHeight(); |
| break; |
| |
| case CSSUnitType::CSS_RLHS: |
| if (conversionData.rootStyle()) { |
| if (conversionData.computingLineHeight() || conversionData.computingFontSize()) |
| value *= conversionData.rootStyle()->computeLineHeight(conversionData.rootStyle()->specifiedLineHeight()); |
| else |
| value *= conversionData.rootStyle()->computedLineHeight(); |
| } |
| break; |
| |
| default: |
| ASSERT_NOT_REACHED(); |
| return -1.0; |
| } |
| |
| // We do not apply the zoom factor when we are computing the value of the font-size property. The zooming |
| // for font sizes is much more complicated, since we have to worry about enforcing the minimum font size preference |
| // as well as enforcing the implicit "smart minimum." |
| if (conversionData.computingFontSize() || isFontRelativeLength(primitiveType)) |
| return value; |
| |
| return value * conversionData.zoom(); |
| } |
| |
| bool CSSPrimitiveValue::equalForLengthResolution(const RenderStyle& styleA, const RenderStyle& styleB) |
| { |
| // These properties affect results of computeNonCalcLengthDouble above. |
| if (styleA.fontDescription().computedSize() != styleB.fontDescription().computedSize()) |
| return false; |
| if (styleA.fontDescription().specifiedSize() != styleB.fontDescription().specifiedSize()) |
| return false; |
| |
| if (styleA.fontMetrics().xHeight() != styleB.fontMetrics().xHeight()) |
| return false; |
| if (styleA.fontMetrics().zeroWidth() != styleB.fontMetrics().zeroWidth()) |
| return false; |
| |
| if (styleA.zoom() != styleB.zoom()) |
| return false; |
| |
| return true; |
| } |
| |
| double CSSPrimitiveValue::conversionToCanonicalUnitsScaleFactor(CSSUnitType unitType) |
| { |
| double factor = 1.0; |
| // FIXME: the switch can be replaced by an array of scale factors. |
| switch (unitType) { |
| // These are "canonical" units in their respective categories. |
| case CSSUnitType::CSS_PX: |
| case CSSUnitType::CSS_DEG: |
| case CSSUnitType::CSS_MS: |
| case CSSUnitType::CSS_HZ: |
| case CSSUnitType::CSS_DPPX: |
| break; |
| case CSSUnitType::CSS_X: |
| // This is semantically identical to (canonical) dppx |
| break; |
| case CSSUnitType::CSS_CM: |
| factor = cssPixelsPerInch / cmPerInch; |
| break; |
| case CSSUnitType::CSS_DPCM: |
| factor = cmPerInch / cssPixelsPerInch; // (2.54 cm/in) |
| break; |
| case CSSUnitType::CSS_MM: |
| factor = cssPixelsPerInch / mmPerInch; |
| break; |
| case CSSUnitType::CSS_Q: |
| factor = cssPixelsPerInch / QPerInch; |
| break; |
| case CSSUnitType::CSS_IN: |
| factor = cssPixelsPerInch; |
| break; |
| case CSSUnitType::CSS_DPI: |
| factor = 1 / cssPixelsPerInch; |
| break; |
| case CSSUnitType::CSS_PT: |
| factor = cssPixelsPerInch / 72.0; |
| break; |
| case CSSUnitType::CSS_PC: |
| factor = cssPixelsPerInch * 12.0 / 72.0; // 1 pc == 12 pt |
| break; |
| case CSSUnitType::CSS_RAD: |
| factor = degreesPerRadianDouble; |
| break; |
| case CSSUnitType::CSS_GRAD: |
| factor = degreesPerGradientDouble; |
| break; |
| case CSSUnitType::CSS_TURN: |
| factor = degreesPerTurnDouble; |
| break; |
| case CSSUnitType::CSS_S: |
| case CSSUnitType::CSS_KHZ: |
| factor = 1000; |
| break; |
| default: |
| break; |
| } |
| |
| return factor; |
| } |
| |
| ExceptionOr<float> CSSPrimitiveValue::getFloatValue(CSSUnitType unitType) const |
| { |
| auto result = doubleValueInternal(unitType); |
| if (!result) |
| return Exception { InvalidAccessError }; |
| return clampTo<float>(result.value()); |
| } |
| |
| double CSSPrimitiveValue::doubleValue(CSSUnitType unitType) const |
| { |
| return doubleValueInternal(unitType).value_or(0); |
| } |
| |
| double CSSPrimitiveValue::doubleValue() const |
| { |
| return primitiveUnitType() != CSSUnitType::CSS_CALC ? m_value.num : m_value.calc->doubleValue(); |
| } |
| |
| double CSSPrimitiveValue::doubleValueDividingBy100IfPercentage() const |
| { |
| switch (primitiveUnitType()) { |
| case CSSUnitType::CSS_CALC: |
| return m_value.calc->primitiveType() == CSSUnitType::CSS_PERCENTAGE ? m_value.calc->doubleValue() / 100.0 : m_value.calc->doubleValue(); |
| |
| case CSSUnitType::CSS_PERCENTAGE: |
| return m_value.num / 100.0; |
| |
| default: |
| return m_value.num; |
| } |
| } |
| |
| std::optional<bool> CSSPrimitiveValue::isZero() const |
| { |
| if (primitiveUnitType() == CSSUnitType::CSS_CALC) |
| return std::nullopt; |
| return !m_value.num; |
| } |
| |
| std::optional<bool> CSSPrimitiveValue::isPositive() const |
| { |
| if (primitiveUnitType() == CSSUnitType::CSS_CALC) |
| return std::nullopt; |
| return m_value.num > 0; |
| } |
| |
| std::optional<bool> CSSPrimitiveValue::isNegative() const |
| { |
| if (primitiveUnitType() == CSSUnitType::CSS_CALC) |
| return std::nullopt; |
| return m_value.num < 0; |
| } |
| |
| bool CSSPrimitiveValue::isCenterPosition() const |
| { |
| return valueID() == CSSValueCenter || doubleValue(CSSUnitType::CSS_PERCENTAGE) == 50; |
| } |
| |
| std::optional<double> CSSPrimitiveValue::doubleValueInternal(CSSUnitType requestedUnitType) const |
| { |
| if (!isValidCSSUnitTypeForDoubleConversion(primitiveUnitType()) || !isValidCSSUnitTypeForDoubleConversion(requestedUnitType)) |
| return std::nullopt; |
| |
| CSSUnitType sourceUnitType = primitiveType(); |
| if (requestedUnitType == sourceUnitType || requestedUnitType == CSSUnitType::CSS_DIMENSION) |
| return doubleValue(); |
| |
| CSSUnitCategory sourceCategory = unitCategory(sourceUnitType); |
| ASSERT(sourceCategory != CSSUnitCategory::Other); |
| |
| CSSUnitType targetUnitType = requestedUnitType; |
| CSSUnitCategory targetCategory = unitCategory(targetUnitType); |
| ASSERT(targetCategory != CSSUnitCategory::Other); |
| |
| // Cannot convert between unrelated unit categories if one of them is not CSSUnitCategory::Number. |
| if (sourceCategory != targetCategory && sourceCategory != CSSUnitCategory::Number && targetCategory != CSSUnitCategory::Number) |
| return std::nullopt; |
| |
| if (targetCategory == CSSUnitCategory::Number) { |
| // We interpret conversion to CSSUnitType::CSS_NUMBER as conversion to a canonical unit in this value's category. |
| targetUnitType = canonicalUnitTypeForCategory(sourceCategory); |
| if (targetUnitType == CSSUnitType::CSS_UNKNOWN) |
| return std::nullopt; |
| } |
| |
| if (sourceUnitType == CSSUnitType::CSS_NUMBER || sourceUnitType == CSSUnitType::CSS_INTEGER) { |
| // We interpret conversion from CSSUnitType::CSS_NUMBER in the same way as CSSParser::validUnit() while using non-strict mode. |
| sourceUnitType = canonicalUnitTypeForCategory(targetCategory); |
| if (sourceUnitType == CSSUnitType::CSS_UNKNOWN) |
| return std::nullopt; |
| } |
| |
| double convertedValue = doubleValue(); |
| |
| // First convert the value from primitiveUnitType() to canonical type. |
| double factor = conversionToCanonicalUnitsScaleFactor(sourceUnitType); |
| convertedValue *= factor; |
| |
| // Now convert from canonical type to the target unitType. |
| factor = conversionToCanonicalUnitsScaleFactor(targetUnitType); |
| convertedValue /= factor; |
| |
| return convertedValue; |
| } |
| |
| String CSSPrimitiveValue::stringValue() const |
| { |
| switch (primitiveUnitType()) { |
| case CSSUnitType::CSS_STRING: |
| case CSSUnitType::CustomIdent: |
| case CSSUnitType::CSS_ATTR: |
| case CSSUnitType::CSS_URI: |
| return m_value.string; |
| case CSSUnitType::CSS_FONT_FAMILY: |
| return m_value.fontFamily->familyName; |
| case CSSUnitType::CSS_VALUE_ID: |
| return valueName(m_value.valueID); |
| case CSSUnitType::CSS_PROPERTY_ID: |
| return propertyName(m_value.propertyID); |
| default: |
| return String(); |
| } |
| } |
| |
| NEVER_INLINE String CSSPrimitiveValue::formatNumberValue(StringView suffix) const |
| { |
| return makeString(FormattedCSSNumber::create(m_value.num), suffix); |
| } |
| |
| NEVER_INLINE String CSSPrimitiveValue::formatIntegerValue(StringView suffix) const |
| { |
| if (m_value.num == std::numeric_limits<double>::infinity()) |
| return makeString("infinity", suffix); |
| if (m_value.num == -1 * std::numeric_limits<double>::infinity()) |
| return makeString("-infinity", suffix); |
| return makeString(m_value.num, suffix); |
| } |
| |
| // FIXME: Should return const char*. |
| String CSSPrimitiveValue::unitTypeString(CSSUnitType unitType) |
| { |
| switch (unitType) { |
| case CSSUnitType::CSS_PERCENTAGE: return "%"; |
| case CSSUnitType::CSS_EMS: return "em"; |
| case CSSUnitType::CSS_EXS: return "ex"; |
| case CSSUnitType::CSS_PX: return "px"; |
| case CSSUnitType::CSS_CM: return "cm"; |
| case CSSUnitType::CSS_MM: return "mm"; |
| case CSSUnitType::CSS_IN: return "in"; |
| case CSSUnitType::CSS_PT: return "pt"; |
| case CSSUnitType::CSS_PC: return "pc"; |
| case CSSUnitType::CSS_DEG: return "deg"; |
| case CSSUnitType::CSS_RAD: return "rad"; |
| case CSSUnitType::CSS_GRAD: return "grad"; |
| case CSSUnitType::CSS_MS: return "ms"; |
| case CSSUnitType::CSS_S: return "s"; |
| case CSSUnitType::CSS_HZ: return "hz"; |
| case CSSUnitType::CSS_KHZ: return "khz"; |
| case CSSUnitType::CSS_VW: return "vw"; |
| case CSSUnitType::CSS_VH: return "vh"; |
| case CSSUnitType::CSS_VMIN: return "vmin"; |
| case CSSUnitType::CSS_VMAX: return "vmax"; |
| case CSSUnitType::CSS_VB: return "vb"; |
| case CSSUnitType::CSS_VI: return "vi"; |
| case CSSUnitType::CSS_SVW: return "svw"; |
| case CSSUnitType::CSS_SVH: return "svh"; |
| case CSSUnitType::CSS_SVMIN: return "svmin"; |
| case CSSUnitType::CSS_SVMAX: return "svmax"; |
| case CSSUnitType::CSS_SVB: return "svb"; |
| case CSSUnitType::CSS_SVI: return "svi"; |
| case CSSUnitType::CSS_LVW: return "lvw"; |
| case CSSUnitType::CSS_LVH: return "lvh"; |
| case CSSUnitType::CSS_LVMIN: return "lvmin"; |
| case CSSUnitType::CSS_LVMAX: return "lvmax"; |
| case CSSUnitType::CSS_LVB: return "lvb"; |
| case CSSUnitType::CSS_LVI: return "lvi"; |
| case CSSUnitType::CSS_DVW: return "dvw"; |
| case CSSUnitType::CSS_DVH: return "dvh"; |
| case CSSUnitType::CSS_DVMIN: return "dvmin"; |
| case CSSUnitType::CSS_DVMAX: return "dvmax"; |
| case CSSUnitType::CSS_DVB: return "dvb"; |
| case CSSUnitType::CSS_DVI: return "dvi"; |
| case CSSUnitType::CSS_DPPX: return "dppx"; |
| case CSSUnitType::CSS_X: return "x"; |
| case CSSUnitType::CSS_DPI: return "dpi"; |
| case CSSUnitType::CSS_DPCM: return "dpcm"; |
| case CSSUnitType::CSS_FR: return "fr"; |
| case CSSUnitType::CSS_Q: return "q"; |
| case CSSUnitType::CSS_LHS: return "lh"; |
| case CSSUnitType::CSS_RLHS: return "rlh"; |
| case CSSUnitType::CSS_TURN: return "turn"; |
| case CSSUnitType::CSS_REMS: return "rem"; |
| case CSSUnitType::CSS_CHS: return "ch"; |
| case CSSUnitType::CSS_IC: return "ic"; |
| |
| case CSSUnitType::CSS_UNKNOWN: |
| case CSSUnitType::CSS_NUMBER: |
| case CSSUnitType::CSS_INTEGER: |
| case CSSUnitType::CSS_DIMENSION: |
| case CSSUnitType::CSS_STRING: |
| case CSSUnitType::CSS_URI: |
| case CSSUnitType::CSS_IDENT: |
| case CSSUnitType::CustomIdent: |
| case CSSUnitType::CSS_ATTR: |
| case CSSUnitType::CSS_COUNTER: |
| case CSSUnitType::CSS_RECT: |
| case CSSUnitType::CSS_RGBCOLOR: |
| case CSSUnitType::CSS_PAIR: |
| case CSSUnitType::CSS_UNICODE_RANGE: |
| case CSSUnitType::CSS_COUNTER_NAME: |
| case CSSUnitType::CSS_SHAPE: |
| case CSSUnitType::CSS_QUAD: |
| case CSSUnitType::CSS_CALC: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| case CSSUnitType::CSS_FONT_FAMILY: |
| case CSSUnitType::CSS_PROPERTY_ID: |
| case CSSUnitType::CSS_VALUE_ID: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| return emptyString(); |
| } |
| ASSERT_NOT_REACHED(); |
| return emptyString(); |
| } |
| |
| ALWAYS_INLINE String CSSPrimitiveValue::formatNumberForCustomCSSText() const |
| { |
| switch (primitiveUnitType()) { |
| case CSSUnitType::CSS_UNKNOWN: |
| return String(); |
| case CSSUnitType::CSS_NUMBER: |
| return formatNumberValue(""); |
| case CSSUnitType::CSS_INTEGER: |
| return formatIntegerValue(""); |
| case CSSUnitType::CSS_PERCENTAGE: |
| return formatNumberValue("%"); |
| case CSSUnitType::CSS_EMS: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| return formatNumberValue("em"); |
| case CSSUnitType::CSS_EXS: |
| return formatNumberValue("ex"); |
| case CSSUnitType::CSS_REMS: |
| return formatNumberValue("rem"); |
| case CSSUnitType::CSS_CHS: |
| return formatNumberValue("ch"); |
| case CSSUnitType::CSS_IC: |
| return formatNumberValue("ic"); |
| case CSSUnitType::CSS_PX: |
| return formatNumberValue("px"); |
| case CSSUnitType::CSS_CM: |
| return formatNumberValue("cm"); |
| case CSSUnitType::CSS_DPPX: |
| return formatNumberValue("dppx"); |
| case CSSUnitType::CSS_X: |
| return formatNumberValue("x"); |
| case CSSUnitType::CSS_DPI: |
| return formatNumberValue("dpi"); |
| case CSSUnitType::CSS_DPCM: |
| return formatNumberValue("dpcm"); |
| case CSSUnitType::CSS_MM: |
| return formatNumberValue("mm"); |
| case CSSUnitType::CSS_IN: |
| return formatNumberValue("in"); |
| case CSSUnitType::CSS_PT: |
| return formatNumberValue("pt"); |
| case CSSUnitType::CSS_PC: |
| return formatNumberValue("pc"); |
| case CSSUnitType::CSS_DEG: |
| return formatNumberValue("deg"); |
| case CSSUnitType::CSS_RAD: |
| return formatNumberValue("rad"); |
| case CSSUnitType::CSS_GRAD: |
| return formatNumberValue("grad"); |
| case CSSUnitType::CSS_MS: |
| return formatNumberValue("ms"); |
| case CSSUnitType::CSS_S: |
| return formatNumberValue("s"); |
| case CSSUnitType::CSS_HZ: |
| return formatNumberValue("hz"); |
| case CSSUnitType::CSS_KHZ: |
| return formatNumberValue("khz"); |
| case CSSUnitType::CSS_TURN: |
| return formatNumberValue("turn"); |
| case CSSUnitType::CSS_FR: |
| return formatNumberValue("fr"); |
| case CSSUnitType::CSS_Q: |
| return formatNumberValue("q"); |
| case CSSUnitType::CSS_LHS: |
| return formatNumberValue("lh"); |
| case CSSUnitType::CSS_RLHS: |
| return formatNumberValue("rlh"); |
| case CSSUnitType::CSS_DIMENSION: |
| // FIXME: This isn't correct. |
| return formatNumberValue(""); |
| case CSSUnitType::CSS_STRING: |
| return serializeString(m_value.string); |
| case CSSUnitType::CustomIdent: { |
| StringBuilder builder; |
| serializeIdentifier(m_value.string, builder); |
| return builder.toString(); |
| } |
| case CSSUnitType::CSS_FONT_FAMILY: |
| return serializeFontFamily(m_value.fontFamily->familyName); |
| case CSSUnitType::CSS_URI: |
| return serializeURL(m_value.string); |
| case CSSUnitType::CSS_VALUE_ID: |
| return valueName(m_value.valueID); |
| case CSSUnitType::CSS_PROPERTY_ID: |
| return propertyName(m_value.propertyID); |
| case CSSUnitType::CSS_ATTR: |
| return "attr(" + String(m_value.string) + ')'; |
| case CSSUnitType::CSS_COUNTER_NAME: |
| return "counter(" + String(m_value.string) + ')'; |
| case CSSUnitType::CSS_COUNTER: { |
| StringBuilder result; |
| auto separator = m_value.counter->separator(); |
| auto listStyle = m_value.counter->listStyle(); |
| result.append(separator.isEmpty() ? "counter(" : "counters(", m_value.counter->identifier(), separator.isEmpty() ? "" : ", "); |
| if (!separator.isEmpty()) |
| serializeString(separator, result); |
| if (!(listStyle.isEmpty() || listStyle == "decimal")) |
| result.append(", ", listStyle); |
| result.append(')'); |
| return result.toString(); |
| } |
| case CSSUnitType::CSS_RECT: |
| return rectValue()->cssText(); |
| case CSSUnitType::CSS_QUAD: |
| return quadValue()->cssText(); |
| case CSSUnitType::CSS_RGBCOLOR: |
| return serializationForCSS(color()); |
| case CSSUnitType::CSS_PAIR: |
| return pairValue()->cssText(); |
| case CSSUnitType::CSS_CALC: |
| if (!m_value.calc) |
| break; |
| return m_value.calc->cssText(); |
| case CSSUnitType::CSS_SHAPE: |
| return m_value.shape->cssText(); |
| case CSSUnitType::CSS_VW: |
| return formatNumberValue("vw"); |
| case CSSUnitType::CSS_VH: |
| return formatNumberValue("vh"); |
| case CSSUnitType::CSS_VMIN: |
| return formatNumberValue("vmin"); |
| case CSSUnitType::CSS_VMAX: |
| return formatNumberValue("vmax"); |
| case CSSUnitType::CSS_VB: |
| return formatNumberValue("vb"); |
| case CSSUnitType::CSS_VI: |
| return formatNumberValue("vi"); |
| case CSSUnitType::CSS_SVW: |
| return formatNumberValue("svw"); |
| case CSSUnitType::CSS_SVH: |
| return formatNumberValue("svh"); |
| case CSSUnitType::CSS_SVMIN: |
| return formatNumberValue("svmin"); |
| case CSSUnitType::CSS_SVMAX: |
| return formatNumberValue("svmax"); |
| case CSSUnitType::CSS_SVB: |
| return formatNumberValue("svb"); |
| case CSSUnitType::CSS_SVI: |
| return formatNumberValue("svi"); |
| case CSSUnitType::CSS_LVW: |
| return formatNumberValue("lvw"); |
| case CSSUnitType::CSS_LVH: |
| return formatNumberValue("lvh"); |
| case CSSUnitType::CSS_LVMIN: |
| return formatNumberValue("lvmin"); |
| case CSSUnitType::CSS_LVMAX: |
| return formatNumberValue("lvmax"); |
| case CSSUnitType::CSS_LVB: |
| return formatNumberValue("lvb"); |
| case CSSUnitType::CSS_LVI: |
| return formatNumberValue("lvi"); |
| case CSSUnitType::CSS_DVW: |
| return formatNumberValue("dvw"); |
| case CSSUnitType::CSS_DVH: |
| return formatNumberValue("dvh"); |
| case CSSUnitType::CSS_DVMIN: |
| return formatNumberValue("dvmin"); |
| case CSSUnitType::CSS_DVMAX: |
| return formatNumberValue("dvmax"); |
| case CSSUnitType::CSS_DVB: |
| return formatNumberValue("dvb"); |
| case CSSUnitType::CSS_DVI: |
| return formatNumberValue("dvi"); |
| case CSSUnitType::CSS_IDENT: |
| case CSSUnitType::CSS_UNICODE_RANGE: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| ASSERT_NOT_REACHED(); |
| } |
| return String(); |
| } |
| |
| String CSSPrimitiveValue::customCSSText() const |
| { |
| // FIXME: return the original value instead of a generated one (e.g. color |
| // name if it was specified) - check what spec says about this |
| |
| CSSTextCache& cssTextCache = WebCore::cssTextCache(); |
| |
| if (m_hasCachedCSSText) { |
| ASSERT(cssTextCache.contains(this)); |
| return cssTextCache.get(this); |
| } |
| |
| String text = formatNumberForCustomCSSText(); |
| |
| ASSERT(!cssTextCache.contains(this)); |
| m_hasCachedCSSText = true; |
| cssTextCache.set(this, text); |
| return text; |
| } |
| |
| bool CSSPrimitiveValue::equals(const CSSPrimitiveValue& other) const |
| { |
| if (primitiveUnitType() != other.primitiveUnitType()) |
| return false; |
| |
| switch (primitiveUnitType()) { |
| case CSSUnitType::CSS_UNKNOWN: |
| return false; |
| case CSSUnitType::CSS_NUMBER: |
| case CSSUnitType::CSS_INTEGER: |
| case CSSUnitType::CSS_PERCENTAGE: |
| case CSSUnitType::CSS_EMS: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| case CSSUnitType::CSS_EXS: |
| case CSSUnitType::CSS_REMS: |
| case CSSUnitType::CSS_CHS: |
| case CSSUnitType::CSS_IC: |
| case CSSUnitType::CSS_PX: |
| case CSSUnitType::CSS_CM: |
| case CSSUnitType::CSS_DPPX: |
| case CSSUnitType::CSS_X: |
| case CSSUnitType::CSS_DPI: |
| case CSSUnitType::CSS_DPCM: |
| case CSSUnitType::CSS_MM: |
| case CSSUnitType::CSS_IN: |
| case CSSUnitType::CSS_PT: |
| case CSSUnitType::CSS_PC: |
| case CSSUnitType::CSS_DEG: |
| case CSSUnitType::CSS_RAD: |
| case CSSUnitType::CSS_GRAD: |
| case CSSUnitType::CSS_MS: |
| case CSSUnitType::CSS_S: |
| case CSSUnitType::CSS_HZ: |
| case CSSUnitType::CSS_KHZ: |
| case CSSUnitType::CSS_TURN: |
| case CSSUnitType::CSS_VW: |
| case CSSUnitType::CSS_VH: |
| case CSSUnitType::CSS_VMIN: |
| case CSSUnitType::CSS_VMAX: |
| case CSSUnitType::CSS_VB: |
| case CSSUnitType::CSS_VI: |
| case CSSUnitType::CSS_SVW: |
| case CSSUnitType::CSS_SVH: |
| case CSSUnitType::CSS_SVMIN: |
| case CSSUnitType::CSS_SVMAX: |
| case CSSUnitType::CSS_SVB: |
| case CSSUnitType::CSS_SVI: |
| case CSSUnitType::CSS_LVW: |
| case CSSUnitType::CSS_LVH: |
| case CSSUnitType::CSS_LVMIN: |
| case CSSUnitType::CSS_LVMAX: |
| case CSSUnitType::CSS_LVB: |
| case CSSUnitType::CSS_LVI: |
| case CSSUnitType::CSS_DVW: |
| case CSSUnitType::CSS_DVH: |
| case CSSUnitType::CSS_DVMIN: |
| case CSSUnitType::CSS_DVMAX: |
| case CSSUnitType::CSS_DVB: |
| case CSSUnitType::CSS_DVI: |
| case CSSUnitType::CSS_FR: |
| case CSSUnitType::CSS_Q: |
| case CSSUnitType::CSS_LHS: |
| case CSSUnitType::CSS_RLHS: |
| case CSSUnitType::CSS_DIMENSION: |
| return m_value.num == other.m_value.num; |
| case CSSUnitType::CSS_PROPERTY_ID: |
| return propertyName(m_value.propertyID) == propertyName(other.m_value.propertyID); |
| case CSSUnitType::CSS_VALUE_ID: |
| return valueName(m_value.valueID) == valueName(other.m_value.valueID); |
| case CSSUnitType::CSS_STRING: |
| case CSSUnitType::CustomIdent: |
| case CSSUnitType::CSS_URI: |
| case CSSUnitType::CSS_ATTR: |
| case CSSUnitType::CSS_COUNTER_NAME: |
| return equal(m_value.string, other.m_value.string); |
| case CSSUnitType::CSS_COUNTER: |
| return m_value.counter && other.m_value.counter && m_value.counter->equals(*other.m_value.counter); |
| case CSSUnitType::CSS_RECT: |
| return m_value.rect && other.m_value.rect && m_value.rect->equals(*other.m_value.rect); |
| case CSSUnitType::CSS_QUAD: |
| return m_value.quad && other.m_value.quad && m_value.quad->equals(*other.m_value.quad); |
| case CSSUnitType::CSS_RGBCOLOR: |
| return color() == other.color(); |
| case CSSUnitType::CSS_PAIR: |
| return m_value.pair && other.m_value.pair && m_value.pair->equals(*other.m_value.pair); |
| case CSSUnitType::CSS_CALC: |
| return m_value.calc && other.m_value.calc && m_value.calc->equals(*other.m_value.calc); |
| case CSSUnitType::CSS_SHAPE: |
| return m_value.shape && other.m_value.shape && m_value.shape->equals(*other.m_value.shape); |
| case CSSUnitType::CSS_FONT_FAMILY: |
| return fontFamily() == other.fontFamily(); |
| case CSSUnitType::CSS_IDENT: |
| case CSSUnitType::CSS_UNICODE_RANGE: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_NUMBER: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| // FIXME: seems like these should be handled. |
| ASSERT_NOT_REACHED(); |
| break; |
| } |
| return false; |
| } |
| |
| Ref<DeprecatedCSSOMPrimitiveValue> CSSPrimitiveValue::createDeprecatedCSSOMPrimitiveWrapper(CSSStyleDeclaration& styleDeclaration) const |
| { |
| return DeprecatedCSSOMPrimitiveValue::create(*this, styleDeclaration); |
| } |
| |
| // https://drafts.css-houdini.org/css-properties-values-api/#dependency-cycles |
| void CSSPrimitiveValue::collectDirectComputationalDependencies(HashSet<CSSPropertyID>& values) const |
| { |
| switch (primitiveUnitType()) { |
| case CSSUnitType::CSS_EMS: |
| case CSSUnitType::CSS_QUIRKY_EMS: |
| case CSSUnitType::CSS_EXS: |
| case CSSUnitType::CSS_CHS: |
| case CSSUnitType::CSS_IC: |
| values.add(CSSPropertyFontSize); |
| break; |
| case CSSUnitType::CSS_LHS: |
| values.add(CSSPropertyFontSize); |
| values.add(CSSPropertyLineHeight); |
| break; |
| case CSSUnitType::CSS_CALC: |
| m_value.calc->collectDirectComputationalDependencies(values); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| void CSSPrimitiveValue::collectDirectRootComputationalDependencies(HashSet<CSSPropertyID>& values) const |
| { |
| switch (primitiveUnitType()) { |
| case CSSUnitType::CSS_REMS: |
| values.add(CSSPropertyFontSize); |
| break; |
| case CSSUnitType::CSS_RLHS: |
| values.add(CSSPropertyFontSize); |
| values.add(CSSPropertyLineHeight); |
| break; |
| case CSSUnitType::CSS_CALC: |
| m_value.calc->collectDirectRootComputationalDependencies(values); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| bool CSSPrimitiveValue::isCSSWideKeyword() const |
| { |
| return WebCore::isCSSWideKeyword(valueID()); |
| } |
| |
| } // namespace WebCore |
