| /* |
| * Copyright (C) 2023-2025 Apple Inc. All rights reserved. |
| * Copyright (C) 2024-2025 Samuel Weinig <[email protected]> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "CSSPropertyInitialValues.h" |
| |
| #include "CSSBorderImageSliceValue.h" |
| #include "CSSBorderImageWidthValue.h" |
| #include "CSSOffsetRotateValue.h" |
| #include "CSSPrimitiveValue.h" |
| #include "CSSPropertyNames.h" |
| #include "CSSQuadValue.h" |
| #include "CSSUnits.h" |
| #include "CSSValueKeywords.h" |
| #include "CSSValuePair.h" |
| #include "RectBase.h" |
| #include <wtf/Variant.h> |
| #include <wtf/text/ASCIILiteral.h> |
| |
| namespace WebCore { |
| |
| struct InitialNumericValue { |
| double number; |
| CSSUnitType type { CSSUnitType::CSS_NUMBER }; |
| }; |
| using InitialValue = Variant<CSSValueID, InitialNumericValue>; |
| |
| static constexpr InitialValue initialValueForLonghand(CSSPropertyID longhand) |
| { |
| // Currently, this tries to cover just longhands that can be omitted from shorthands when parsing or serializing. |
| // Later, we likely want to cover all properties, and generate the table from CSSProperties.json. |
| switch (longhand) { |
| case CSSPropertyAccentColor: |
| case CSSPropertyAlignSelf: |
| case CSSPropertyAnimationDuration: |
| case CSSPropertyAnimationTimeline: |
| case CSSPropertyAspectRatio: |
| case CSSPropertyBackgroundSize: |
| case CSSPropertyBlockSize: |
| case CSSPropertyBlockStepAlign: |
| case CSSPropertyBottom: |
| case CSSPropertyBreakAfter: |
| case CSSPropertyBreakBefore: |
| case CSSPropertyBreakInside: |
| case CSSPropertyCaretColor: |
| case CSSPropertyClip: |
| case CSSPropertyColumnCount: |
| case CSSPropertyColumnWidth: |
| case CSSPropertyCursor: |
| case CSSPropertyDominantBaseline: |
| case CSSPropertyFlexBasis: |
| case CSSPropertyFontKerning: |
| case CSSPropertyFontSynthesisSmallCaps: |
| case CSSPropertyFontSynthesisStyle: |
| case CSSPropertyFontSynthesisWeight: |
| case CSSPropertyGridAutoColumns: |
| case CSSPropertyGridAutoRows: |
| case CSSPropertyGridColumnEnd: |
| case CSSPropertyGridColumnStart: |
| case CSSPropertyGridRowEnd: |
| case CSSPropertyGridRowStart: |
| case CSSPropertyHeight: |
| case CSSPropertyImageRendering: |
| case CSSPropertyInlineSize: |
| case CSSPropertyInputSecurity: |
| case CSSPropertyInsetBlockEnd: |
| case CSSPropertyInsetBlockStart: |
| case CSSPropertyInsetInlineEnd: |
| case CSSPropertyInsetInlineStart: |
| case CSSPropertyJustifySelf: |
| case CSSPropertyLeft: |
| case CSSPropertyLineBreak: |
| case CSSPropertyMaskBorderWidth: |
| case CSSPropertyMaskSize: |
| case CSSPropertyOffsetAnchor: |
| case CSSPropertyOffsetRotate: |
| case CSSPropertyOverflowAnchor: |
| case CSSPropertyOverscrollBehaviorBlock: |
| case CSSPropertyOverscrollBehaviorInline: |
| case CSSPropertyOverscrollBehaviorX: |
| case CSSPropertyOverscrollBehaviorY: |
| case CSSPropertyPage: |
| case CSSPropertyPointerEvents: |
| case CSSPropertyQuotes: |
| case CSSPropertyRight: |
| case CSSPropertyScrollBehavior: |
| case CSSPropertyScrollPaddingBlockEnd: |
| case CSSPropertyScrollPaddingBlockStart: |
| case CSSPropertyScrollPaddingBottom: |
| case CSSPropertyScrollPaddingInlineEnd: |
| case CSSPropertyScrollPaddingInlineStart: |
| case CSSPropertyScrollPaddingLeft: |
| case CSSPropertyScrollPaddingRight: |
| case CSSPropertyScrollPaddingTop: |
| case CSSPropertyScrollbarColor: |
| case CSSPropertyScrollbarGutter: |
| case CSSPropertyScrollbarWidth: |
| case CSSPropertySize: |
| case CSSPropertyTableLayout: |
| case CSSPropertyTextAlignLast: |
| case CSSPropertyTextDecorationSkipInk: |
| case CSSPropertyTextDecorationThickness: |
| case CSSPropertyTextJustify: |
| case CSSPropertyTextUnderlineOffset: |
| case CSSPropertyTextUnderlinePosition: |
| case CSSPropertyTop: |
| case CSSPropertyWebkitMaskSourceType: |
| case CSSPropertyWillChange: |
| case CSSPropertyZIndex: |
| case CSSPropertyZoom: |
| #if ENABLE(VARIATION_FONTS) |
| case CSSPropertyFontOpticalSizing: |
| #endif |
| return CSSValueAuto; |
| case CSSPropertyAlignContent: |
| case CSSPropertyAlignItems: |
| case CSSPropertyAnimationDirection: |
| case CSSPropertyAnimationRangeEnd: |
| case CSSPropertyAnimationRangeStart: |
| case CSSPropertyBackgroundBlendMode: |
| case CSSPropertyColumnGap: |
| case CSSPropertyContainerType: |
| case CSSPropertyContent: |
| case CSSPropertyFontFeatureSettings: |
| case CSSPropertyFontPalette: |
| case CSSPropertyFontWidth: |
| case CSSPropertyFontStyle: |
| case CSSPropertyFontVariantAlternates: |
| case CSSPropertyFontVariantCaps: |
| case CSSPropertyFontVariantEastAsian: |
| case CSSPropertyFontVariantEmoji: |
| case CSSPropertyFontVariantLigatures: |
| case CSSPropertyFontVariantNumeric: |
| case CSSPropertyFontVariantPosition: |
| case CSSPropertyFontWeight: |
| case CSSPropertyJustifyContent: |
| case CSSPropertyLetterSpacing: |
| case CSSPropertyLineHeight: |
| case CSSPropertyOffsetPosition: |
| case CSSPropertyOverflowWrap: |
| case CSSPropertyRowGap: |
| case CSSPropertyScrollSnapStop: |
| case CSSPropertySpeakAs: |
| case CSSPropertyTextBoxTrim: |
| case CSSPropertyTransitionBehavior: |
| case CSSPropertyWordBreak: |
| case CSSPropertyWordSpacing: |
| #if ENABLE(VARIATION_FONTS) |
| case CSSPropertyFontVariationSettings: |
| #endif |
| return CSSValueNormal; |
| case CSSPropertyAlignmentBaseline: |
| case CSSPropertyVerticalAlign: |
| return CSSValueBaseline; |
| case CSSPropertyAnimationDelay: |
| case CSSPropertyTransitionDelay: |
| case CSSPropertyTransitionDuration: |
| return InitialNumericValue { 0, CSSUnitType::CSS_S }; |
| case CSSPropertyAnimationFillMode: |
| case CSSPropertyAnimationName: |
| case CSSPropertyAppearance: |
| case CSSPropertyBackgroundImage: |
| case CSSPropertyBlockEllipsis: |
| case CSSPropertyBlockStepSize: |
| case CSSPropertyBorderBlockEndStyle: |
| case CSSPropertyBorderBlockStartStyle: |
| case CSSPropertyBorderBlockStyle: |
| case CSSPropertyBorderBottomStyle: |
| case CSSPropertyBorderImageSource: |
| case CSSPropertyBorderInlineEndStyle: |
| case CSSPropertyBorderInlineStartStyle: |
| case CSSPropertyBorderInlineStyle: |
| case CSSPropertyBorderLeftStyle: |
| case CSSPropertyBorderRightStyle: |
| case CSSPropertyBorderStyle: |
| case CSSPropertyBorderTopStyle: |
| case CSSPropertyBoxShadow: |
| case CSSPropertyClear: |
| case CSSPropertyClipPath: |
| case CSSPropertyColumnRuleStyle: |
| case CSSPropertyColumnSpan: |
| case CSSPropertyContain: |
| case CSSPropertyContainIntrinsicBlockSize: |
| case CSSPropertyContainIntrinsicHeight: |
| case CSSPropertyContainIntrinsicInlineSize: |
| case CSSPropertyContainIntrinsicWidth: |
| case CSSPropertyContainerName: |
| case CSSPropertyCounterIncrement: |
| case CSSPropertyCounterReset: |
| case CSSPropertyFilter: |
| case CSSPropertyFloat: |
| case CSSPropertyFontSizeAdjust: |
| case CSSPropertyGridTemplateAreas: |
| case CSSPropertyGridTemplateColumns: |
| case CSSPropertyGridTemplateRows: |
| case CSSPropertyHangingPunctuation: |
| case CSSPropertyListStyleImage: |
| case CSSPropertyMarginTrim: |
| case CSSPropertyMarkerEnd: |
| case CSSPropertyMarkerMid: |
| case CSSPropertyMarkerStart: |
| case CSSPropertyMaskBorderSource: |
| case CSSPropertyMaskImage: |
| case CSSPropertyMaxBlockSize: |
| case CSSPropertyMaxHeight: |
| case CSSPropertyMaxInlineSize: |
| case CSSPropertyMaxLines: |
| case CSSPropertyMaxWidth: |
| case CSSPropertyMinHeight: |
| case CSSPropertyMinWidth: |
| case CSSPropertyOffsetPath: |
| case CSSPropertyOutlineStyle: |
| case CSSPropertyPerspective: |
| case CSSPropertyResize: |
| case CSSPropertyRotate: |
| case CSSPropertyScale: |
| case CSSPropertyScrollSnapAlign: |
| case CSSPropertyScrollSnapType: |
| case CSSPropertyShapeOutside: |
| case CSSPropertyStrokeDasharray: |
| case CSSPropertyTextCombineUpright: |
| case CSSPropertyTextDecorationLine: |
| case CSSPropertyTextEmphasisStyle: |
| case CSSPropertyTextGroupAlign: |
| case CSSPropertyTextShadow: |
| case CSSPropertyTextTransform: |
| case CSSPropertyTransform: |
| case CSSPropertyTranslate: |
| case CSSPropertyWidth: |
| return CSSValueNone; |
| case CSSPropertyBlockStepInsert: |
| return CSSValueMarginBox; |
| case CSSPropertyBlockStepRound: |
| return CSSValueUp; |
| case CSSPropertyAnimationIterationCount: |
| case CSSPropertyBorderImageWidth: |
| case CSSPropertyFillOpacity: |
| case CSSPropertyFlexShrink: |
| case CSSPropertyFloodOpacity: |
| case CSSPropertyStrokeOpacity: |
| case CSSPropertyOpacity: |
| return InitialNumericValue { 1, CSSUnitType::CSS_NUMBER }; |
| case CSSPropertyAnimationPlayState: |
| return CSSValueRunning; |
| case CSSPropertyAnimationTimingFunction: |
| case CSSPropertyTransitionTimingFunction: |
| return CSSValueEase; |
| case CSSPropertyBackgroundAttachment: |
| return CSSValueScroll; |
| case CSSPropertyBackfaceVisibility: |
| case CSSPropertyContentVisibility: |
| case CSSPropertyOverflowX: |
| case CSSPropertyOverflowY: |
| case CSSPropertyVisibility: |
| return CSSValueVisible; |
| case CSSPropertyBackgroundClip: |
| case CSSPropertyMaskClip: |
| case CSSPropertyMaskOrigin: |
| case CSSPropertyWebkitMaskClip: |
| return CSSValueBorderBox; |
| case CSSPropertyBackgroundColor: |
| return CSSValueTransparent; |
| case CSSPropertyBackgroundOrigin: |
| return CSSValuePaddingBox; |
| case CSSPropertyBackgroundPositionX: |
| case CSSPropertyBackgroundPositionY: |
| case CSSPropertyWebkitMaskPositionX: |
| case CSSPropertyWebkitMaskPositionY: |
| return InitialNumericValue { 0, CSSUnitType::CSS_PERCENTAGE }; |
| case CSSPropertyBackgroundRepeat: |
| case CSSPropertyMaskRepeat: |
| return CSSValueRepeat; |
| case CSSPropertyBorderBlockColor: |
| case CSSPropertyBorderBlockEndColor: |
| case CSSPropertyBorderBlockStartColor: |
| case CSSPropertyBorderBottomColor: |
| case CSSPropertyBorderColor: |
| case CSSPropertyBorderInlineColor: |
| case CSSPropertyBorderInlineEndColor: |
| case CSSPropertyBorderInlineStartColor: |
| case CSSPropertyBorderLeftColor: |
| case CSSPropertyBorderRightColor: |
| case CSSPropertyBorderTopColor: |
| case CSSPropertyColumnRuleColor: |
| case CSSPropertyOutlineColor: |
| case CSSPropertyTextDecorationColor: |
| case CSSPropertyTextEmphasisColor: |
| case CSSPropertyWebkitTextStrokeColor: |
| return CSSValueCurrentcolor; |
| case CSSPropertyBorderBlockEndWidth: |
| case CSSPropertyBorderBlockStartWidth: |
| case CSSPropertyBorderBottomWidth: |
| case CSSPropertyBorderInlineEndWidth: |
| case CSSPropertyBorderInlineStartWidth: |
| case CSSPropertyBorderLeftWidth: |
| case CSSPropertyBorderRightWidth: |
| case CSSPropertyBorderTopWidth: |
| case CSSPropertyColumnRuleWidth: |
| case CSSPropertyFontSize: |
| case CSSPropertyOutlineWidth: |
| return CSSValueMedium; |
| case CSSPropertyBorderCollapse: |
| return CSSValueSeparate; |
| case CSSPropertyBorderImageOutset: |
| case CSSPropertyMaskBorderOutset: |
| return InitialNumericValue { 0, CSSUnitType::CSS_NUMBER }; |
| case CSSPropertyBorderImageRepeat: |
| case CSSPropertyMaskBorderRepeat: |
| return CSSValueStretch; |
| case CSSPropertyBorderImageSlice: |
| return InitialNumericValue { 100, CSSUnitType::CSS_PERCENTAGE }; |
| case CSSPropertyBoxSizing: |
| return CSSValueContentBox; |
| case CSSPropertyCaptionSide: |
| return CSSValueTop; |
| case CSSPropertyClipRule: |
| case CSSPropertyFillRule: |
| return CSSValueNonzero; |
| case CSSPropertyColor: |
| return CSSValueCanvastext; |
| case CSSPropertyColorInterpolationFilters: |
| return CSSValueLinearRGB; |
| case CSSPropertyColumnFill: |
| return CSSValueBalance; |
| case CSSPropertyDisplay: |
| return CSSValueInline; |
| case CSSPropertyEmptyCells: |
| return CSSValueShow; |
| case CSSPropertyFlexDirection: |
| case CSSPropertyGridAutoFlow: |
| return CSSValueRow; |
| case CSSPropertyFlexWrap: |
| return CSSValueNowrap; |
| case CSSPropertyFloodColor: |
| return CSSValueBlack; |
| case CSSPropertyImageOrientation: |
| return CSSValueFromImage; |
| case CSSPropertyJustifyItems: |
| return CSSValueLegacy; |
| case CSSPropertyLightingColor: |
| return CSSValueWhite; |
| case CSSPropertyLineFitEdge: |
| return CSSValueLeading; |
| case CSSPropertyListStylePosition: |
| return CSSValueOutside; |
| case CSSPropertyListStyleType: |
| return CSSValueDisc; |
| case CSSPropertyMaskBorderSlice: |
| return InitialNumericValue { 0, CSSUnitType::CSS_NUMBER }; |
| case CSSPropertyMaskComposite: |
| return CSSValueAdd; |
| case CSSPropertyMaskMode: |
| return CSSValueMatchSource; |
| case CSSPropertyMaskType: |
| return CSSValueLuminance; |
| case CSSPropertyObjectFit: |
| return CSSValueFill; |
| case CSSPropertyOffsetDistance: |
| case CSSPropertyTransformOriginZ: |
| case CSSPropertyWebkitTextStrokeWidth: |
| return InitialNumericValue { 0, CSSUnitType::CSS_PX }; |
| case CSSPropertyOrphans: |
| case CSSPropertyWidows: |
| return InitialNumericValue { 2, CSSUnitType::CSS_NUMBER }; |
| case CSSPropertyPerspectiveOriginX: |
| case CSSPropertyPerspectiveOriginY: |
| case CSSPropertyTransformOriginX: |
| case CSSPropertyTransformOriginY: |
| return InitialNumericValue { 50, CSSUnitType::CSS_PERCENTAGE }; |
| case CSSPropertyPosition: |
| return CSSValueStatic; |
| case CSSPropertyPositionTryOrder: |
| return CSSValueNormal; |
| case CSSPropertyPositionTryFallbacks: |
| return CSSValueNone; |
| case CSSPropertyPrintColorAdjust: |
| return CSSValueEconomy; |
| case CSSPropertyScrollTimelineAxis: |
| case CSSPropertyViewTimelineAxis: |
| return CSSValueBlock; |
| case CSSPropertyScrollTimelineName: |
| case CSSPropertyViewTimelineName: |
| return CSSValueNone; |
| case CSSPropertyViewTimelineInset: |
| return CSSValueAuto; |
| case CSSPropertyStrokeColor: |
| return CSSValueTransparent; |
| case CSSPropertyStrokeLinecap: |
| return CSSValueButt; |
| case CSSPropertyStrokeLinejoin: |
| return CSSValueMiter; |
| case CSSPropertyStrokeMiterlimit: |
| return InitialNumericValue { 4, CSSUnitType::CSS_NUMBER }; |
| case CSSPropertyStrokeWidth: |
| return InitialNumericValue { 1, CSSUnitType::CSS_PX }; |
| case CSSPropertyTabSize: |
| return InitialNumericValue { 8, CSSUnitType::CSS_NUMBER }; |
| case CSSPropertyTextAlign: |
| return CSSValueStart; |
| case CSSPropertyTextDecorationStyle: |
| return CSSValueSolid; |
| case CSSPropertyTextBoxEdge: |
| return CSSValueAuto; |
| case CSSPropertyTextOrientation: |
| return CSSValueMixed; |
| case CSSPropertyTextOverflow: |
| return CSSValueClip; |
| case CSSPropertyTextWrapMode: |
| return CSSValueWrap; |
| case CSSPropertyTextWrapStyle: |
| return CSSValueAuto; |
| case CSSPropertyTransformBox: |
| return CSSValueViewBox; |
| case CSSPropertyTransformStyle: |
| return CSSValueFlat; |
| case CSSPropertyTransitionProperty: |
| return CSSValueAll; |
| case CSSPropertyWritingMode: |
| return CSSValueHorizontalTb; |
| case CSSPropertyTextSpacingTrim: |
| return CSSValueSpaceAll; |
| case CSSPropertyTextAutospace: |
| return CSSValueNoAutospace; |
| case CSSPropertyWhiteSpaceCollapse: |
| return CSSValueCollapse; |
| case CSSPropertyFieldSizing: |
| return CSSValueFixed; |
| default: |
| RELEASE_ASSERT_NOT_REACHED(); |
| } |
| } |
| |
| static bool isValueIDPair(const CSSValue& value, CSSValueID valueID) |
| { |
| return value.isPair() && isValueID(value.first(), valueID) && isValueID(value.second(), valueID); |
| } |
| |
| static bool isNumber(const CSSPrimitiveValue& value, double number, CSSUnitType type) |
| { |
| return value.primitiveType() == type && !value.isCalculated() && value.valueNoConversionDataRequired<double>() == number; |
| } |
| |
| static bool isNumber(const CSSPrimitiveValue* value, double number, CSSUnitType type) |
| { |
| return value && isNumber(*value, number, type); |
| } |
| |
| static bool isNumber(const CSSValue& value, double number, CSSUnitType type) |
| { |
| return isNumber(dynamicDowncast<CSSPrimitiveValue>(value), number, type); |
| } |
| |
| static bool isNumber(const RectBase& quad, double number, CSSUnitType type) |
| { |
| return isNumber(quad.top(), number, type) |
| && isNumber(quad.right(), number, type) |
| && isNumber(quad.bottom(), number, type) |
| && isNumber(quad.left(), number, type); |
| } |
| |
| static bool isValueID(const RectBase& quad, CSSValueID valueID) |
| { |
| return isValueID(quad.top(), valueID) |
| && isValueID(quad.right(), valueID) |
| && isValueID(quad.bottom(), valueID) |
| && isValueID(quad.left(), valueID); |
| } |
| |
| static bool isNumericQuad(const CSSValue& value, double number, CSSUnitType type) |
| { |
| return value.isQuad() && isNumber(value.quad(), number, type); |
| } |
| |
| bool isInitialValueForLonghand(CSSPropertyID longhand, const CSSValue& value) |
| { |
| if (value.isImplicitInitialValue()) |
| return true; |
| switch (longhand) { |
| case CSSPropertyBackgroundSize: |
| case CSSPropertyMaskSize: |
| if (isValueIDPair(value, CSSValueAuto)) |
| return true; |
| break; |
| case CSSPropertyBorderImageOutset: |
| case CSSPropertyMaskBorderOutset: |
| if (isNumericQuad(value, 0, CSSUnitType::CSS_NUMBER)) |
| return true; |
| break; |
| case CSSPropertyBorderImageRepeat: |
| case CSSPropertyMaskBorderRepeat: |
| if (isValueIDPair(value, CSSValueStretch)) |
| return true; |
| break; |
| case CSSPropertyBorderImageSlice: |
| if (auto sliceValue = dynamicDowncast<CSSBorderImageSliceValue>(value)) { |
| if (!sliceValue->fill() && isNumber(sliceValue->slices(), 100, CSSUnitType::CSS_PERCENTAGE)) |
| return true; |
| } |
| break; |
| case CSSPropertyBorderImageWidth: |
| if (auto widthValue = dynamicDowncast<CSSBorderImageWidthValue>(value)) { |
| if (!widthValue->overridesBorderWidths() && isNumber(widthValue->widths(), 1, CSSUnitType::CSS_NUMBER)) |
| return true; |
| } |
| break; |
| case CSSPropertyOffsetRotate: |
| if (auto rotateValue = dynamicDowncast<CSSOffsetRotateValue>(value)) { |
| if (rotateValue->isInitialValue()) |
| return true; |
| } |
| break; |
| case CSSPropertyMaskBorderSlice: |
| if (auto sliceValue = dynamicDowncast<CSSBorderImageSliceValue>(value)) { |
| if (!sliceValue->fill() && isNumber(sliceValue->slices(), 0, CSSUnitType::CSS_NUMBER)) |
| return true; |
| } |
| return false; |
| case CSSPropertyMaskBorderWidth: |
| if (auto widthValue = dynamicDowncast<CSSBorderImageWidthValue>(value)) { |
| if (!widthValue->overridesBorderWidths() && isValueID(widthValue->widths(), CSSValueAuto)) |
| return true; |
| } |
| break; |
| default: |
| break; |
| } |
| return WTF::switchOn(initialValueForLonghand(longhand), |
| [&](CSSValueID initialValue) { |
| return isValueID(value, initialValue); |
| }, |
| [&](InitialNumericValue initialValue) { |
| return isNumber(value, initialValue.number, initialValue.type); |
| } |
| ); |
| } |
| |
| ASCIILiteral initialValueTextForLonghand(CSSPropertyID longhand) |
| { |
| return WTF::switchOn(initialValueForLonghand(longhand), |
| [](CSSValueID value) { |
| return nameLiteral(value); |
| }, |
| [](InitialNumericValue initialValue) { |
| switch (initialValue.type) { |
| case CSSUnitType::CSS_NUMBER: |
| if (initialValue.number == 0.0) |
| return "0"_s; |
| if (initialValue.number == 1.0) |
| return "1"_s; |
| if (initialValue.number == 2.0) |
| return "2"_s; |
| if (initialValue.number == 4.0) |
| return "4"_s; |
| if (initialValue.number == 8.0) |
| return "8"_s; |
| break; |
| case CSSUnitType::CSS_PERCENTAGE: |
| if (initialValue.number == 0.0) |
| return "0%"_s; |
| if (initialValue.number == 50.0) |
| return "50%"_s; |
| if (initialValue.number == 100.0) |
| return "100%"_s; |
| break; |
| case CSSUnitType::CSS_PX: |
| if (initialValue.number == 0.0) |
| return "0px"_s; |
| if (initialValue.number == 1.0) |
| return "1px"_s; |
| break; |
| case CSSUnitType::CSS_S: |
| if (initialValue.number == 0.0) |
| return "0s"_s; |
| break; |
| default: |
| break; |
| } |
| ASSERT_NOT_REACHED(); |
| return ""_s; |
| } |
| ); |
| } |
| |
| CSSValueID initialValueIDForLonghand(CSSPropertyID longhand) |
| { |
| return WTF::switchOn(initialValueForLonghand(longhand), |
| [](CSSValueID value) { |
| return value; |
| }, |
| [](InitialNumericValue) { |
| return CSSValueInvalid; |
| } |
| ); |
| } |
| |
| } // namespace WebCore |
