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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 /*

  * methods for dealing with CSS properties and tables of the keyword

  * values they accept

  */

 #ifndef nsCSSProps_h___

 #define nsCSSProps_h___

 #include "nsString.h"

 #include "nsCSSProperty.h"

 #include "nsStyleStructFwd.h"

 #include "nsCSSKeywords.h"

 // Length of the "--" prefix on custom names (such as custom property names,

 // and, in the future, custom media query names).

 #define CSS_CUSTOM_NAME_PREFIX_LENGTH 2

 // Flags for ParseVariant method

 #define VARIANT_KEYWORD         0x000001  // K

 #define VARIANT_LENGTH          0x000002  // L

 #define VARIANT_PERCENT         0x000004  // P

 #define VARIANT_COLOR           0x000008  // C eCSSUnit_*Color, eCSSUnit_Ident (e.g.  "red")

 #define VARIANT_URL             0x000010  // U

 #define VARIANT_NUMBER          0x000020  // N

 #define VARIANT_INTEGER         0x000040  // I

 #define VARIANT_ANGLE           0x000080  // G

 #define VARIANT_FREQUENCY       0x000100  // F

 #define VARIANT_TIME            0x000200  // T

 #define VARIANT_STRING          0x000400  // S

 #define VARIANT_COUNTER         0x000800  //

 #define VARIANT_ATTR            0x001000  //

 #define VARIANT_IDENTIFIER      0x002000  // D

 #define VARIANT_IDENTIFIER_NO_INHERIT 0x004000 // like above, but excluding

 // 'inherit' and 'initial'

 #define VARIANT_AUTO            0x010000  // A

 #define VARIANT_INHERIT         0x020000  // H eCSSUnit_Initial, eCSSUnit_Inherit, eCSSUnit_Unset

 #define VARIANT_NONE            0x040000  // O

 #define VARIANT_NORMAL          0x080000  // M

 #define VARIANT_SYSFONT         0x100000  // eCSSUnit_System_Font

 #define VARIANT_GRADIENT        0x200000  // eCSSUnit_Gradient

 #define VARIANT_TIMING_FUNCTION 0x400000  // cubic-bezier() and steps()

 #define VARIANT_ALL             0x800000  //

 #define VARIANT_IMAGE_RECT    0x01000000  // eCSSUnit_Function

 // This is an extra bit that says that a VARIANT_ANGLE allows unitless zero:

 #define VARIANT_ZERO_ANGLE    0x02000000  // unitless zero for angles

 #define VARIANT_CALC          0x04000000  // eCSSUnit_Calc

 #define VARIANT_ELEMENT       0x08000000  // eCSSUnit_Element

 #define VARIANT_POSITIVE_DIMENSION 0x10000000 // Only lengths greater than 0.0

 #define VARIANT_NONNEGATIVE_DIMENSION 0x20000000 // Only lengths greater than or equal to 0.0

 // Keyword used iff gfx.font_rendering.opentype_svg.enabled is true:

 #define VARIANT_OPENTYPE_SVG_KEYWORD 0x40000000

 // Common combinations of variants

 #define VARIANT_AL   (VARIANT_AUTO | VARIANT_LENGTH)

 #define VARIANT_LP   (VARIANT_LENGTH | VARIANT_PERCENT)

 #define VARIANT_LN   (VARIANT_LENGTH | VARIANT_NUMBER)

 #define VARIANT_AH   (VARIANT_AUTO | VARIANT_INHERIT)

 #define VARIANT_AHLP (VARIANT_AH | VARIANT_LP)

 #define VARIANT_AHI  (VARIANT_AH | VARIANT_INTEGER)

 #define VARIANT_AHK  (VARIANT_AH | VARIANT_KEYWORD)

 #define VARIANT_AHKLP (VARIANT_AHLP | VARIANT_KEYWORD)

 #define VARIANT_AHL  (VARIANT_AH | VARIANT_LENGTH)

 #define VARIANT_AHKL (VARIANT_AHK | VARIANT_LENGTH)

 #define VARIANT_HK   (VARIANT_INHERIT | VARIANT_KEYWORD)

 #define VARIANT_HKF  (VARIANT_HK | VARIANT_FREQUENCY)

 #define VARIANT_HKI  (VARIANT_HK | VARIANT_INTEGER)

 #define VARIANT_HKL  (VARIANT_HK | VARIANT_LENGTH)

 #define VARIANT_HKLP (VARIANT_HK | VARIANT_LP)

 #define VARIANT_HKLPO (VARIANT_HKLP | VARIANT_NONE)

 #define VARIANT_HL   (VARIANT_INHERIT | VARIANT_LENGTH)

 #define VARIANT_HI   (VARIANT_INHERIT | VARIANT_INTEGER)

 #define VARIANT_HLP  (VARIANT_HL | VARIANT_PERCENT)

 #define VARIANT_HLPN (VARIANT_HLP | VARIANT_NUMBER)

 #define VARIANT_HLPO (VARIANT_HLP | VARIANT_NONE)

 #define VARIANT_HTP  (VARIANT_INHERIT | VARIANT_TIME | VARIANT_PERCENT)

 #define VARIANT_HMK  (VARIANT_HK | VARIANT_NORMAL)

 #define VARIANT_HC   (VARIANT_INHERIT | VARIANT_COLOR)

 #define VARIANT_HCK  (VARIANT_HK | VARIANT_COLOR)

 #define VARIANT_HUK  (VARIANT_HK | VARIANT_URL)

 #define VARIANT_HUO  (VARIANT_INHERIT | VARIANT_URL | VARIANT_NONE)

 #define VARIANT_AHUO (VARIANT_AUTO | VARIANT_HUO)

 #define VARIANT_HPN  (VARIANT_INHERIT | VARIANT_PERCENT | VARIANT_NUMBER)

 #define VARIANT_PN   (VARIANT_PERCENT | VARIANT_NUMBER)

 #define VARIANT_ALPN (VARIANT_AL | VARIANT_PN)

 #define VARIANT_HN   (VARIANT_INHERIT | VARIANT_NUMBER)

 #define VARIANT_HON  (VARIANT_HN | VARIANT_NONE)

 #define VARIANT_HOS  (VARIANT_INHERIT | VARIANT_NONE | VARIANT_STRING)

 #define VARIANT_LPN  (VARIANT_LP | VARIANT_NUMBER)

 #define VARIANT_UK   (VARIANT_URL | VARIANT_KEYWORD)

 #define VARIANT_UO   (VARIANT_URL | VARIANT_NONE)

 #define VARIANT_ANGLE_OR_ZERO (VARIANT_ANGLE | VARIANT_ZERO_ANGLE)

 #define VARIANT_LCALC  (VARIANT_LENGTH | VARIANT_CALC)

 #define VARIANT_LPCALC (VARIANT_LCALC | VARIANT_PERCENT)

 #define VARIANT_LNCALC (VARIANT_LCALC | VARIANT_NUMBER)

 #define VARIANT_LPNCALC (VARIANT_LNCALC | VARIANT_PERCENT)

 #define VARIANT_IMAGE   (VARIANT_URL | VARIANT_NONE | VARIANT_GRADIENT | \

                         VARIANT_IMAGE_RECT | VARIANT_ELEMENT)

 // Flags for the kFlagsTable bitfield (flags_ in nsCSSPropList.h)

 // A property that is a *-ltr-source or *-rtl-source property for one of

 // the directional pseudo-shorthand properties.

 #define CSS_PROPERTY_DIRECTIONAL_SOURCE           (1<<0)

 #define CSS_PROPERTY_VALUE_LIST_USES_COMMAS       (1<<1) /* otherwise spaces */

 #define CSS_PROPERTY_APPLIES_TO_FIRST_LETTER      (1<<2)

 #define CSS_PROPERTY_APPLIES_TO_FIRST_LINE        (1<<3)

 #define CSS_PROPERTY_APPLIES_TO_FIRST_LETTER_AND_FIRST_LINE \

   (CSS_PROPERTY_APPLIES_TO_FIRST_LETTER | CSS_PROPERTY_APPLIES_TO_FIRST_LINE)

 // Note that 'background-color' is ignored differently from the other

 // properties that have this set, but that's just special-cased.

 #define CSS_PROPERTY_IGNORED_WHEN_COLORS_DISABLED (1<<4)

 // A property that needs to have image loads started when a URL value

 // for the property is used for an element.  This is supported only

 // for a few possible value formats: image directly in the value; list

 // of images; and with CSS_PROPERTY_IMAGE_IS_IN_ARRAY_0, image in slot

 // 0 of an array, or list of such arrays.

 #define CSS_PROPERTY_START_IMAGE_LOADS            (1<<5)

 // Should be set only for properties with START_IMAGE_LOADS.  Indicates

 // that the property has an array value with a URL/image value at index

 // 0 in the array, rather than the URL/image being in the value or value

 // list.

 #define CSS_PROPERTY_IMAGE_IS_IN_ARRAY_0          (1<<6)

 // This is a property for which the computed value should generally be

 // reported as the computed value of a property of a different name.  In

 // particular, the directional box properties (margin-left-value, etc.)

 // should be reported as being margin-left, etc.  Call

 // nsCSSProps::OtherNameFor to get the other property.

 #define CSS_PROPERTY_REPORT_OTHER_NAME            (1<<7)

 // This property allows calc() between lengths and percentages and

 // stores such calc() expressions in its style structs (typically in an

 // nsStyleCoord, although this is not the case for 'background-position'

 // and 'background-size').

 #define CSS_PROPERTY_STORES_CALC                  (1<<8)

 // Define what mechanism the CSS parser uses for parsing the property.

 // See CSSParserImpl::ParseProperty(nsCSSProperty).  Don't use 0 so that

 // we can verify that every property sets one of the values.

 //

 // CSS_PROPERTY_PARSE_FUNCTION must be used for shorthand properties,

 // since it's the only mechanism that allows appending values for

 // separate properties.  Longhand properties that require custom parsing

 // functions should prefer using CSS_PROPERTY_PARSE_VALUE (or

 // CSS_PROPERTY_PARSE_VALUE_LIST) and

 // CSS_PROPERTY_VALUE_PARSER_FUNCTION, though a number of existing

 // longhand properties use CSS_PROPERTY_PARSE_FUNCTION instead.

 #define CSS_PROPERTY_PARSE_PROPERTY_MASK          (7<<9)

 #define CSS_PROPERTY_PARSE_INACCESSIBLE           (1<<9)

 #define CSS_PROPERTY_PARSE_FUNCTION               (2<<9)

 #define CSS_PROPERTY_PARSE_VALUE                  (3<<9)

 #define CSS_PROPERTY_PARSE_VALUE_LIST             (4<<9)

 // See CSSParserImpl::ParseSingleValueProperty and comment above

 // CSS_PROPERTY_PARSE_FUNCTION (which is different).

 #define CSS_PROPERTY_VALUE_PARSER_FUNCTION        (1<<12)

 static_assert((CSS_PROPERTY_PARSE_PROPERTY_MASK &

                CSS_PROPERTY_VALUE_PARSER_FUNCTION) == 0,

               "didn't leave enough room for the parse property constants");

 #define CSS_PROPERTY_VALUE_RESTRICTION_MASK       (3<<13)

 // The parser (in particular, CSSParserImpl::ParseSingleValueProperty)

 // should enforce that the value of this property must be 0 or larger.

 #define CSS_PROPERTY_VALUE_NONNEGATIVE            (1<<13)

 // The parser (in particular, CSSParserImpl::ParseSingleValueProperty)

 // should enforce that the value of this property must be 1 or larger.

 #define CSS_PROPERTY_VALUE_AT_LEAST_ONE           (2<<13)

 // Does this property support the hashless hex color quirk in quirks mode?

 #define CSS_PROPERTY_HASHLESS_COLOR_QUIRK         (1<<15)

 // Does this property support the unitless length quirk in quirks mode?

 #define CSS_PROPERTY_UNITLESS_LENGTH_QUIRK        (1<<16)

 // Is this property (which must be a shorthand) really an alias?

 #define CSS_PROPERTY_IS_ALIAS                     (1<<17)

 // Does the property apply to ::-moz-placeholder?

 #define CSS_PROPERTY_APPLIES_TO_PLACEHOLDER       (1<<18)

 // This property is allowed in an @page rule.

 #define CSS_PROPERTY_APPLIES_TO_PAGE_RULE         (1<<19)

 // This property's getComputedStyle implementation requires layout to be

 // flushed.

 #define CSS_PROPERTY_GETCS_NEEDS_LAYOUT_FLUSH     (1<<20)

 // This property requires a stacking context.

 #define CSS_PROPERTY_CREATES_STACKING_CONTEXT     (1<<21)

 // This property is always enabled in UA sheets.  This is meant to be used

 // together with a pref that enables the property for non-UA sheets.

 // Note that if such a property has an alias, then any use of that alias

 // in an UA sheet will still be ignored unless the pref is enabled.

 // In other words, this bit has no effect on the use of aliases.

 #define CSS_PROPERTY_ALWAYS_ENABLED_IN_UA_SHEETS  (1<<22)

 // This property is always enabled in chrome and in certified apps. This is

 // meant to be used together with a pref that enables the property for

 // non-privileged content. Note that if such a property has an alias, then any

 // use of that alias in privileged content will still be ignored unless the

 // pref is enabled. In other words, this bit has no effect on the use of

 // aliases.

 #define CSS_PROPERTY_ALWAYS_ENABLED_IN_CHROME_OR_CERTIFIED_APP (1<<23)

 /**

  * Types of animatable values.

  */

 enum nsStyleAnimType {

   // requires a custom implementation in

   // nsStyleAnimation::ExtractComputedValue

   eStyleAnimType_Custom,

   // nsStyleCoord with animatable values

   eStyleAnimType_Coord,

   // same as Coord, except for one side of an nsStyleSides

   // listed in the same order as the NS_STYLE_* constants

   eStyleAnimType_Sides_Top,

   eStyleAnimType_Sides_Right,

   eStyleAnimType_Sides_Bottom,

   eStyleAnimType_Sides_Left,

   // similar, but for the *pair* of coord members of an nsStyleCorners

   // for the relevant corner

   eStyleAnimType_Corner_TopLeft,

   eStyleAnimType_Corner_TopRight,

   eStyleAnimType_Corner_BottomRight,

   eStyleAnimType_Corner_BottomLeft,

   // nscoord values

   eStyleAnimType_nscoord,

   // enumerated values (stored in a uint8_t)

   // In order for a property to use this unit, _all_ of its enumerated values

   // must be listed in its keyword table, so that any enumerated value can be

   // converted into a string via a nsCSSValue of type eCSSUnit_Enumerated.

   eStyleAnimType_EnumU8,

   // float values

   eStyleAnimType_float,

   // nscolor values

   eStyleAnimType_Color,

   // nsStyleSVGPaint values

   eStyleAnimType_PaintServer,

   // nsRefPtr<nsCSSShadowArray> values

   eStyleAnimType_Shadow,

   // property not animatable

   eStyleAnimType_None

 };

 class nsCSSProps {

 public:

   typedef int16_t KTableValue;

   static void AddRefTable(void);

   static void ReleaseTable(void);

   enum EnabledState {

     // The default EnabledState: only enable what's enabled for all content,

     // given the current values of preferences.

     eEnabledForAllContent = 0,

     // Enable a property in UA sheets.

     eEnabledInUASheets    = 0x01,

     // Enable a property in privileged content, i.e. chrome or Certified Apps

     eEnabledInChromeOrCertifiedApp = 0x02,

     // Special value to unconditionally enable a property. This implies all the

     // bits above, but is strictly more than just their OR-ed union.

     // This just skips any test so a property will be enabled even if it would

     // have been disabled with all the bits above set.

     eIgnoreEnabledState   = 0xff

   };

   // Looks up the property with name aProperty and returns its corresponding

   // nsCSSProperty value.  If aProperty is the name of a custom property,

   // then eCSSPropertyExtra_variable will be returned.

   static nsCSSProperty LookupProperty(const nsAString& aProperty,

                                       EnabledState aEnabled);

   static nsCSSProperty LookupProperty(const nsACString& aProperty,

                                       EnabledState aEnabled);

   // Returns whether aProperty is a custom property name, i.e. begins with

   // "--".  This assumes that the CSS Variables pref has been enabled.

   static bool IsCustomPropertyName(const nsAString& aProperty);

   static bool IsCustomPropertyName(const nsACString& aProperty);

   static inline bool IsShorthand(nsCSSProperty aProperty) {

     NS_ABORT_IF_FALSE(0 <= aProperty && aProperty < eCSSProperty_COUNT,

                  "out of range");

     return (aProperty >= eCSSProperty_COUNT_no_shorthands);

   }

   // Must be given a longhand property.

   static bool IsInherited(nsCSSProperty aProperty);

   // Same but for @font-face descriptors

   static nsCSSFontDesc LookupFontDesc(const nsAString& aProperty);

   static nsCSSFontDesc LookupFontDesc(const nsACString& aProperty);

   // Given a property enum, get the string value

   static const nsAFlatCString& GetStringValue(nsCSSProperty aProperty);

   static const nsAFlatCString& GetStringValue(nsCSSFontDesc aFontDesc);

   // Get the property to report the computed value of aProperty as being

   // the computed value of.  aProperty must have the

   // CSS_PROPERTY_REPORT_OTHER_NAME bit set.

   static nsCSSProperty OtherNameFor(nsCSSProperty aProperty);

   // Given a CSS Property and a Property Enum Value

   // Return back a const nsString& representation of the

   // value. Return back nullstr if no value is found

   static const nsAFlatCString& LookupPropertyValue(nsCSSProperty aProperty, int32_t aValue);

   // Get a color name for a predefined color value like buttonhighlight or activeborder

   // Sets the aStr param to the name of the propertyID

   static bool GetColorName(int32_t aPropID, nsCString &aStr);

   // Returns the index of |aKeyword| in |aTable|, if it exists there;

   // otherwise, returns -1.

   // NOTE: Generally, clients should call FindKeyword() instead of this method.

   static int32_t FindIndexOfKeyword(nsCSSKeyword aKeyword,

                                     const KTableValue aTable[]);

   // Find |aKeyword| in |aTable|, if found set |aValue| to its corresponding value.

   // If not found, return false and do not set |aValue|.

   static bool FindKeyword(nsCSSKeyword aKeyword, const KTableValue aTable[],

                           int32_t& aValue);

   // Return the first keyword in |aTable| that has the corresponding value |aValue|.

   // Return |eCSSKeyword_UNKNOWN| if not found.

   static nsCSSKeyword ValueToKeywordEnum(int32_t aValue, 

                                          const KTableValue aTable[]);

   // Ditto but as a string, return "" when not found.

   static const nsAFlatCString& ValueToKeyword(int32_t aValue,

                                               const KTableValue aTable[]);

   static const nsStyleStructID kSIDTable[eCSSProperty_COUNT_no_shorthands];

   static const KTableValue* const kKeywordTableTable[eCSSProperty_COUNT_no_shorthands];

   static const nsStyleAnimType kAnimTypeTable[eCSSProperty_COUNT_no_shorthands];

   static const ptrdiff_t

     kStyleStructOffsetTable[eCSSProperty_COUNT_no_shorthands];

 private:

   static const uint32_t        kFlagsTable[eCSSProperty_COUNT];

 public:

   static inline bool PropHasFlags(nsCSSProperty aProperty, uint32_t aFlags)

   {

     NS_ABORT_IF_FALSE(0 <= aProperty && aProperty < eCSSProperty_COUNT,

                       "out of range");

     MOZ_ASSERT(!(aFlags & CSS_PROPERTY_PARSE_PROPERTY_MASK),

                "The CSS_PROPERTY_PARSE_* values are not bitflags; don't pass "

                "them to PropHasFlags.  You probably want PropertyParseType "

                "instead.");

     return (nsCSSProps::kFlagsTable[aProperty] & aFlags) == aFlags;

   }

   static inline uint32_t PropertyParseType(nsCSSProperty aProperty)

   {

     NS_ABORT_IF_FALSE(0 <= aProperty && aProperty < eCSSProperty_COUNT,

                       "out of range");

     return nsCSSProps::kFlagsTable[aProperty] &

            CSS_PROPERTY_PARSE_PROPERTY_MASK;

   }

   static inline uint32_t ValueRestrictions(nsCSSProperty aProperty)

   {

     NS_ABORT_IF_FALSE(0 <= aProperty && aProperty < eCSSProperty_COUNT,

                       "out of range");

     return nsCSSProps::kFlagsTable[aProperty] &

            CSS_PROPERTY_VALUE_RESTRICTION_MASK;

   }

 private:

   // Lives in nsCSSParser.cpp for the macros it depends on.

   static const uint32_t kParserVariantTable[eCSSProperty_COUNT_no_shorthands];

 public:

   static inline uint32_t ParserVariant(nsCSSProperty aProperty) {

     NS_ABORT_IF_FALSE(0 <= aProperty &&

                       aProperty < eCSSProperty_COUNT_no_shorthands,

                       "out of range");

     return nsCSSProps::kParserVariantTable[aProperty];

   }

 private:

   // A table for shorthand properties.  The appropriate index is the

   // property ID minus eCSSProperty_COUNT_no_shorthands.

   static const nsCSSProperty *const

     kSubpropertyTable[eCSSProperty_COUNT - eCSSProperty_COUNT_no_shorthands];

 public:

   static inline

   const nsCSSProperty * SubpropertyEntryFor(nsCSSProperty aProperty) {

     NS_ABORT_IF_FALSE(eCSSProperty_COUNT_no_shorthands <= aProperty &&

                       aProperty < eCSSProperty_COUNT,

                       "out of range");

     return nsCSSProps::kSubpropertyTable[aProperty -

                                          eCSSProperty_COUNT_no_shorthands];

   }

   // Returns an eCSSProperty_UNKNOWN-terminated array of the shorthand

   // properties containing |aProperty|, sorted from those that contain

   // the most properties to those that contain the least.

   static const nsCSSProperty * ShorthandsContaining(nsCSSProperty aProperty) {

     NS_ABORT_IF_FALSE(gShorthandsContainingPool, "uninitialized");

     NS_ABORT_IF_FALSE(0 <= aProperty &&

                       aProperty < eCSSProperty_COUNT_no_shorthands,

                       "out of range");

     return gShorthandsContainingTable[aProperty];

   }

 private:

   // gShorthandsContainingTable is an array of the return values for

   // ShorthandsContaining (arrays of nsCSSProperty terminated by

   // eCSSProperty_UNKNOWN) pointing into memory in

   // gShorthandsContainingPool (which contains all of those arrays in a

   // single allocation, and is the one pointer that should be |free|d).

   static nsCSSProperty *gShorthandsContainingTable[eCSSProperty_COUNT_no_shorthands];

   static nsCSSProperty* gShorthandsContainingPool;

   static bool BuildShorthandsContainingTable();

 private:

   static const size_t gPropertyCountInStruct[nsStyleStructID_Length];

   static const size_t gPropertyIndexInStruct[eCSSProperty_COUNT_no_shorthands];

 public:

   /**

    * Return the number of properties that must be cascaded when

    * nsRuleNode builds the nsStyle* for aSID.

    */

   static size_t PropertyCountInStruct(nsStyleStructID aSID) {

     NS_ABORT_IF_FALSE(0 <= aSID && aSID < nsStyleStructID_Length,

                       "out of range");

     return gPropertyCountInStruct[aSID];

   }

   /**

    * Return an index for aProperty that is unique within its SID and in

    * the range 0 <= index < PropertyCountInStruct(aSID).

    */

   static size_t PropertyIndexInStruct(nsCSSProperty aProperty) {

     NS_ABORT_IF_FALSE(0 <= aProperty &&

                          aProperty < eCSSProperty_COUNT_no_shorthands,

                       "out of range");

     return gPropertyIndexInStruct[aProperty];

   }

 private:

   static bool gPropertyEnabled[eCSSProperty_COUNT_with_aliases];

 public:

   static bool IsEnabled(nsCSSProperty aProperty) {

     NS_ABORT_IF_FALSE(0 <= aProperty &&

                       aProperty < eCSSProperty_COUNT_with_aliases,

                       "out of range");

     return gPropertyEnabled[aProperty];

   }

   static bool IsEnabled(nsCSSProperty aProperty, EnabledState aEnabled)

   {

     if (IsEnabled(aProperty)) {

       return true;

     }

     if (aEnabled == eIgnoreEnabledState) {

       return true;

     }

     if ((aEnabled & eEnabledInUASheets) &&

         PropHasFlags(aProperty, CSS_PROPERTY_ALWAYS_ENABLED_IN_UA_SHEETS))

     {

       return true;

     }

     if ((aEnabled & eEnabledInChromeOrCertifiedApp) &&

         PropHasFlags(aProperty, CSS_PROPERTY_ALWAYS_ENABLED_IN_CHROME_OR_CERTIFIED_APP))

     {

       return true;

     }

     return false;

   }

 public:

 #define CSSPROPS_FOR_SHORTHAND_SUBPROPERTIES(iter_, prop_)                    \

   for (const nsCSSProperty* iter_ = nsCSSProps::SubpropertyEntryFor(prop_);   \

        *iter_ != eCSSProperty_UNKNOWN; ++iter_) \

     if (nsCSSProps::IsEnabled(*iter_))

   // Keyword/Enum value tables

   static const KTableValue kAnimationDirectionKTable[];

   static const KTableValue kAnimationFillModeKTable[];

   static const KTableValue kAnimationIterationCountKTable[];

   static const KTableValue kAnimationPlayStateKTable[];

   static const KTableValue kAnimationTimingFunctionKTable[];

   static const KTableValue kAppearanceKTable[];

   static const KTableValue kAzimuthKTable[];

   static const KTableValue kBackfaceVisibilityKTable[];

   static const KTableValue kTransformStyleKTable[];

   static const KTableValue kBackgroundAttachmentKTable[];

   static const KTableValue kBackgroundInlinePolicyKTable[];

   static const KTableValue kBackgroundOriginKTable[];

   static const KTableValue kBackgroundPositionKTable[];

   static const KTableValue kBackgroundRepeatKTable[];

   static const KTableValue kBackgroundRepeatPartKTable[];

   static const KTableValue kBackgroundSizeKTable[];

   static const KTableValue kBlendModeKTable[];

   static const KTableValue kBorderCollapseKTable[];

   static const KTableValue kBorderColorKTable[];

   static const KTableValue kBorderImageRepeatKTable[];

   static const KTableValue kBorderImageSliceKTable[];

   static const KTableValue kBorderStyleKTable[];

   static const KTableValue kBorderWidthKTable[];

   static const KTableValue kBoxAlignKTable[];

   static const KTableValue kBoxDirectionKTable[];

   static const KTableValue kBoxOrientKTable[];

   static const KTableValue kBoxPackKTable[];

   static const KTableValue kDominantBaselineKTable[];

   static const KTableValue kFillRuleKTable[];

   static const KTableValue kFilterFunctionKTable[];

   static const KTableValue kImageRenderingKTable[];

   static const KTableValue kShapeRenderingKTable[];

   static const KTableValue kStrokeLinecapKTable[];

   static const KTableValue kStrokeLinejoinKTable[];

   static const KTableValue kStrokeContextValueKTable[];

   static const KTableValue kVectorEffectKTable[];

   static const KTableValue kTextAnchorKTable[];

   static const KTableValue kTextRenderingKTable[];

   static const KTableValue kColorInterpolationKTable[];

   static const KTableValue kColumnFillKTable[];

   static const KTableValue kBoxPropSourceKTable[];

   static const KTableValue kBoxShadowTypeKTable[];

   static const KTableValue kBoxSizingKTable[];

   static const KTableValue kCaptionSideKTable[];

   static const KTableValue kClearKTable[];

   static const KTableValue kColorKTable[];

   static const KTableValue kContentKTable[];

   static const KTableValue kControlCharacterVisibilityKTable[];

   static const KTableValue kCursorKTable[];

   static const KTableValue kDirectionKTable[];

   // Not const because we modify its entries when the pref

   // "layout.css.grid.enabled" changes:

   static KTableValue kDisplayKTable[];

   static const KTableValue kElevationKTable[];

   static const KTableValue kEmptyCellsKTable[];

   static const KTableValue kAlignContentKTable[];

   static const KTableValue kAlignItemsKTable[];

   static const KTableValue kAlignSelfKTable[];

   static const KTableValue kFlexDirectionKTable[];

   static const KTableValue kFlexWrapKTable[];

   static const KTableValue kJustifyContentKTable[];

   static const KTableValue kFloatKTable[];

   static const KTableValue kFloatEdgeKTable[];

   static const KTableValue kFontKTable[];

   static const KTableValue kFontKerningKTable[];

   static const KTableValue kFontSizeKTable[];

   static const KTableValue kFontSmoothingKTable[];

   static const KTableValue kFontStretchKTable[];

   static const KTableValue kFontStyleKTable[];

   static const KTableValue kFontSynthesisKTable[];

   static const KTableValue kFontVariantKTable[];

   static const KTableValue kFontVariantAlternatesKTable[];

   static const KTableValue kFontVariantAlternatesFuncsKTable[];

   static const KTableValue kFontVariantCapsKTable[];

   static const KTableValue kFontVariantEastAsianKTable[];

   static const KTableValue kFontVariantLigaturesKTable[];

   static const KTableValue kFontVariantNumericKTable[];

   static const KTableValue kFontVariantPositionKTable[];

   static const KTableValue kFontWeightKTable[];

   static const KTableValue kGridAutoFlowKTable[];

   static const KTableValue kGridTrackBreadthKTable[];

   static const KTableValue kImageOrientationKTable[];

   static const KTableValue kImageOrientationFlipKTable[];

   static const KTableValue kIMEModeKTable[];

   static const KTableValue kLineHeightKTable[];

   static const KTableValue kListStylePositionKTable[];

   static const KTableValue kListStyleKTable[];

   static const KTableValue kMaskTypeKTable[];

   static const KTableValue kMathVariantKTable[];

   static const KTableValue kMathDisplayKTable[];

   static const KTableValue kContextOpacityKTable[];

   static const KTableValue kContextPatternKTable[];

   static const KTableValue kOrientKTable[];

   static const KTableValue kOutlineStyleKTable[];

   static const KTableValue kOutlineColorKTable[];

   static const KTableValue kOverflowKTable[];

   static const KTableValue kOverflowSubKTable[];

   static const KTableValue kOverflowClipBoxKTable[];

   static const KTableValue kPageBreakKTable[];

   static const KTableValue kPageBreakInsideKTable[];

   static const KTableValue kPageMarksKTable[];

   static const KTableValue kPageSizeKTable[];

   static const KTableValue kPitchKTable[];

   static const KTableValue kPointerEventsKTable[];

   // Not const because we modify its entries when the pref

   // "layout.css.sticky.enabled" changes:

   static KTableValue kPositionKTable[];

   static const KTableValue kRadialGradientShapeKTable[];

   static const KTableValue kRadialGradientSizeKTable[];

   static const KTableValue kRadialGradientLegacySizeKTable[];

   static const KTableValue kResizeKTable[];

   static const KTableValue kSpeakKTable[];

   static const KTableValue kSpeakHeaderKTable[];

   static const KTableValue kSpeakNumeralKTable[];

   static const KTableValue kSpeakPunctuationKTable[];

   static const KTableValue kSpeechRateKTable[];

   static const KTableValue kStackSizingKTable[];

   static const KTableValue kTableLayoutKTable[];

   // Not const because we modify its entries when the pref

   // "layout.css.text-align-true-value.enabled" changes:

   static KTableValue kTextAlignKTable[];

   static KTableValue kTextAlignLastKTable[];

   static const KTableValue kTextCombineUprightKTable[];

   static const KTableValue kTextDecorationLineKTable[];

   static const KTableValue kTextDecorationStyleKTable[];

   static const KTableValue kTextOrientationKTable[];

   static const KTableValue kTextOverflowKTable[];

   static const KTableValue kTextTransformKTable[];

   static const KTableValue kTouchActionKTable[];

   static const KTableValue kTransitionTimingFunctionKTable[];

   static const KTableValue kUnicodeBidiKTable[];

   static const KTableValue kUserFocusKTable[];

   static const KTableValue kUserInputKTable[];

   static const KTableValue kUserModifyKTable[];

   static const KTableValue kUserSelectKTable[];

   static const KTableValue kVerticalAlignKTable[];

   static const KTableValue kVisibilityKTable[];

   static const KTableValue kVolumeKTable[];

   static const KTableValue kWhitespaceKTable[];

   static const KTableValue kWidthKTable[]; // also min-width, max-width

   static const KTableValue kWindowShadowKTable[];

   static const KTableValue kWordBreakKTable[];

   static const KTableValue kWordWrapKTable[];

   static const KTableValue kWritingModeKTable[];

   static const KTableValue kHyphensKTable[];

 };

 inline nsCSSProps::EnabledState operator|(nsCSSProps::EnabledState a,

                                           nsCSSProps::EnabledState b)

 {

   return nsCSSProps::EnabledState(int(a) | int(b));

 }

 inline nsCSSProps::EnabledState operator&(nsCSSProps::EnabledState a,

                                           nsCSSProps::EnabledState b)

 {

   return nsCSSProps::EnabledState(int(a) & int(b));

 }

 inline nsCSSProps::EnabledState& operator|=(nsCSSProps::EnabledState& a,

                                             nsCSSProps::EnabledState b)

 {

   return a = a | b;

 }

 inline nsCSSProps::EnabledState& operator&=(nsCSSProps::EnabledState& a,

                                             nsCSSProps::EnabledState b)

 {

   return a = a & b;

 }

 #endif /* nsCSSProps_h___ */