The Tor Browser: comparison layout/style/nsCSSProps.h

--1:000000000000
+:df0c0adf9dc1
+/* -*- 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___ */

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comparison: layout/style/nsCSSProps.h

layout/style/nsCSSProps.h