layout/style/nsStyleConsts.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 /* constants used in the style struct data provided by ComputedStyle */
   8
   9 #ifndef nsStyleConsts_h___
  10 #define nsStyleConsts_h___
  11
  12 #include <inttypes.h>
  13
  14 #include "X11UndefineNone.h"
  15
  16 #include "gfxFontConstants.h"
  17 #include "mozilla/ServoStyleConsts.h"
  18
  19 // XXX fold this into ComputedStyle and group by nsStyleXXX struct
  20
  21 namespace mozilla {
  22
  23 // box-align
  24 enum class StyleBoxAlign : uint8_t {
  25   Stretch,
  26   Start,
  27   Center,
  28   Baseline,
  29   End,
  30 };
  31
  32 // box-decoration-break
  33 enum class StyleBoxDecorationBreak : uint8_t {
  34   Slice,
  35   Clone,
  36 };
  37
  38 // box-direction
  39 enum class StyleBoxDirection : uint8_t {
  40   Normal,
  41   Reverse,
  42 };
  43
  44 // box-orient
  45 enum class StyleBoxOrient : uint8_t {
  46   Horizontal,
  47   Vertical,
  48 };
  49
  50 // box-pack
  51 enum class StyleBoxPack : uint8_t {
  52   Start,
  53   Center,
  54   End,
  55   Justify,
  56 };
  57
  58 // box-sizing
  59 enum class StyleBoxSizing : uint8_t { Content, Border };
  60
  61 // box-shadow
  62 enum class StyleBoxShadowType : uint8_t {
  63   Inset,
  64 };
  65
  66 enum class StyleColumnFill : uint8_t {
  67   Balance,
  68   Auto,
  69 };
  70
  71 enum class StyleColumnSpan : uint8_t {
  72   None,
  73   All,
  74 };
  75
  76 // Define geometry box for clip-path's reference-box, background-clip,
  77 // background-origin, mask-clip, mask-origin, shape-box and transform-box.
  78 enum class StyleGeometryBox : uint8_t {
  79   ContentBox,  // Used by everything, except transform-box.
  80   PaddingBox,  // Used by everything, except transform-box.
  81   BorderBox,
  82   MarginBox,  // XXX Bug 1260094 comment 9.
  83               // Although margin-box is required by mask-origin and mask-clip,
  84               // we do not implement that due to lack of support in other
  85               // browsers. clip-path reference-box only.
  86   FillBox,    // Used by everything, except shape-box.
  87   StrokeBox,  // mask-clip, mask-origin and clip-path reference-box only.
  88   ViewBox,    // Used by everything, except shape-box.
  89   NoClip,     // mask-clip only.
  90   Text,       // background-clip only.
  91   NoBox,      // Depending on which kind of element this style value applied on,
  92               // the default value of a reference-box can be different.
  93               // For an HTML element, the default value of reference-box is
  94               // border-box; for an SVG element, the default value is fill-box.
  95               // Since we can not determine the default value at parsing time,
  96               // set it as NoBox so that we make a decision later.
  97               // clip-path reference-box only.
  98   MozAlmostPadding = 127  // A magic value that we use for our "pretend that
  99                           // background-clip is 'padding' when we have a solid
 100                           // border" optimization.  This isn't actually equal
 101                           // to StyleGeometryBox::Padding because using that
 102                           // causes antialiasing seams between the background
 103                           // and border.
 104                           // background-clip only.
 105 };
 106
 107 // float-edge
 108 enum class StyleFloatEdge : uint8_t {
 109   ContentBox,
 110   MarginBox,
 111 };
 112
 113 // Hyphens
 114 enum class StyleHyphens : uint8_t {
 115   None,
 116   Manual,
 117   Auto,
 118 };
 119
 120 // image-orientation
 121 enum class StyleImageOrientation : uint8_t {
 122   None,
 123   FromImage,
 124 };
 125
 126 // scrollbar-width
 127 enum class StyleScrollbarWidth : uint8_t {
 128   Auto,
 129   Thin,
 130   None,
 131 };
 132
 133 // Shape source type
 134 enum class StyleShapeSourceType : uint8_t {
 135   None,
 136   Image,  // shape-outside / clip-path only, and clip-path only uses it for
 137           // <url>s
 138   Shape,
 139   Box,
 140   Path,  // SVG path function
 141 };
 142
 143 // user-focus
 144 enum class StyleUserFocus : uint8_t {
 145   None,
 146   Ignore,
 147   Normal,
 148 };
 149
 150 // user-input
 151 enum class StyleUserInput : uint8_t {
 152   None,
 153   Auto,
 154 };
 155
 156 // user-modify
 157 enum class StyleUserModify : uint8_t {
 158   ReadOnly,
 159   ReadWrite,
 160   WriteOnly,
 161 };
 162
 163 // -moz-inert
 164 enum class StyleInert : uint8_t {
 165   None,
 166   Inert,
 167 };
 168
 169 // -moz-window-dragging
 170 enum class StyleWindowDragging : uint8_t {
 171   Default,
 172   Drag,
 173   NoDrag,
 174 };
 175
 176 // orient
 177 enum class StyleOrient : uint8_t {
 178   Inline,
 179   Block,
 180   Horizontal,
 181   Vertical,
 182 };
 183
 184 // See nsStyleImageLayers
 185 enum class StyleImageLayerAttachment : uint8_t { Scroll, Fixed, Local };
 186
 187 // See nsStyleImageLayers
 188 enum class StyleImageLayerRepeat : uint8_t {
 189   NoRepeat = 0x00,
 190   RepeatX,
 191   RepeatY,
 192   Repeat,
 193   Space,
 194   Round
 195 };
 196
 197 // Mask mode
 198 enum class StyleMaskMode : uint8_t { Alpha = 0, Luminance, MatchSource };
 199
 200 // See nsStyleTable
 201 enum class StyleBorderCollapse : uint8_t { Collapse, Separate };
 202
 203 // border-image-repeat
 204 enum class StyleBorderImageRepeat : uint8_t { Stretch, Repeat, Round, Space };
 205
 206 // See nsStyleVisibility
 207 enum class StyleDirection : uint8_t { Ltr, Rtl };
 208
 209 // See nsStyleVisibility
 210 // NOTE: WritingModes.h depends on the particular values used here.
 211
 212 // Single-bit flag, used in combination with VerticalLR and RL to specify
 213 // the corresponding Sideways* modes.
 214 // (To avoid ambiguity, this bit must be high enough such that no other
 215 // values here accidentally use it in their binary representation.)
 216 static constexpr uint8_t kWritingModeSidewaysMask = 4;
 217
 218 enum class StyleWritingModeProperty : uint8_t {
 219   HorizontalTb = 0,
 220   VerticalRl = 1,
 221   // HorizontalBT = 2,    // hypothetical
 222   VerticalLr = 3,
 223   SidewaysRl = VerticalRl | kWritingModeSidewaysMask,
 224   SidewaysLr = VerticalLr | kWritingModeSidewaysMask,
 225 };
 226
 227 // See nsStylePosition
 228 enum class StyleFlexDirection : uint8_t {
 229   Row,
 230   RowReverse,
 231   Column,
 232   ColumnReverse,
 233 };
 234
 235 // See nsStylePosition
 236 enum class StyleFlexWrap : uint8_t {
 237   Nowrap,
 238   Wrap,
 239   WrapReverse,
 240 };
 241
 242 // CSS Grid <track-breadth> keywords
 243 enum class StyleGridTrackBreadth : uint8_t {
 244   MaxContent = 1,
 245   MinContent = 2,
 246 };
 247
 248 // defaults per MathML spec
 249 static constexpr float kMathMLDefaultScriptSizeMultiplier{0.71f};
 250 static constexpr float kMathMLDefaultScriptMinSizePt{8.f};
 251
 252 // See nsStyleFont
 253 enum class StyleMathVariant : uint8_t {
 254   None = 0,
 255   Normal = 1,
 256   Bold = 2,
 257   Italic = 3,
 258   BoldItalic = 4,
 259   Script = 5,
 260   BoldScript = 6,
 261   Fraktur = 7,
 262   DoubleStruck = 8,
 263   BoldFraktur = 9,
 264   SansSerif = 10,
 265   BoldSansSerif = 11,
 266   SansSerifItalic = 12,
 267   SansSerifBoldItalic = 13,
 268   Monospace = 14,
 269   Initial = 15,
 270   Tailed = 16,
 271   Looped = 17,
 272   Stretched = 18,
 273 };
 274
 275 // See nsStyleFont::mMathStyle
 276 enum class StyleMathStyle : uint8_t { Compact = 0, Normal = 1 };
 277
 278 // See nsStyleDisplay.mPosition
 279 enum class StylePositionProperty : uint8_t {
 280   Static,
 281   Relative,
 282   Absolute,
 283   Fixed,
 284   Sticky,
 285 };
 286
 287 enum class FrameBorderProperty : uint8_t { Yes, No, One, Zero };
 288
 289 enum class ScrollingAttribute : uint8_t {
 290   Yes,
 291   No,
 292   On,
 293   Off,
 294   Scroll,
 295   Noscroll,
 296   Auto
 297 };
 298
 299 // See nsStyleList
 300 enum class ListStyle : uint8_t {
 301   Custom = 255,  // for @counter-style
 302   None = 0,
 303   Decimal,
 304   Disc,
 305   Circle,
 306   Square,
 307   DisclosureClosed,
 308   DisclosureOpen,
 309   Hebrew,
 310   JapaneseInformal,
 311   JapaneseFormal,
 312   KoreanHangulFormal,
 313   KoreanHanjaInformal,
 314   KoreanHanjaFormal,
 315   SimpChineseInformal,
 316   SimpChineseFormal,
 317   TradChineseInformal,
 318   TradChineseFormal,
 319   EthiopicNumeric,
 320   // These styles are handled as custom styles defined in counterstyles.css.
 321   // They are preserved here only for html attribute map.
 322   LowerRoman = 100,
 323   UpperRoman,
 324   LowerAlpha,
 325   UpperAlpha
 326 };
 327
 328 // See nsStyleList
 329 enum class StyleListStylePosition : uint8_t { Inside, Outside };
 330
 331 // See nsStyleVisibility
 332 enum class StylePointerEvents : uint8_t {
 333   None,
 334   Visiblepainted,
 335   Visiblefill,
 336   Visiblestroke,
 337   Visible,
 338   Painted,
 339   Fill,
 340   Stroke,
 341   All,
 342   Auto,
 343 };
 344
 345 enum class StyleIsolation : uint8_t {
 346   Auto,
 347   Isolate,
 348 };
 349
 350 // See nsStylePosition.mObjectFit
 351 enum class StyleObjectFit : uint8_t {
 352   Fill,
 353   Contain,
 354   Cover,
 355   None,
 356   ScaleDown,
 357 };
 358
 359 // See nsStyleText
 360 enum class StyleTextDecorationStyle : uint8_t {
 361   None,  // not in CSS spec, mapped to -moz-none
 362   Dotted,
 363   Dashed,
 364   Solid,
 365   Double,
 366   Wavy,
 367   Sentinel = Wavy
 368 };
 369
 370 // See nsStyleText
 371 enum class StyleTextSecurity : uint8_t {
 372   None,
 373   Circle,
 374   Disc,
 375   Square,
 376 };
 377
 378 // See nsStyleDisplay
 379 enum class StyleTopLayer : uint8_t {
 380   None,
 381   Top,
 382 };
 383
 384 // See nsStyleVisibility
 385 enum class StyleVisibility : uint8_t {
 386   Hidden,
 387   Visible,
 388   Collapse,
 389 };
 390
 391 // See nsStyleText
 392 enum class StyleWhiteSpaceCollapse : uint8_t {
 393   Collapse = 0,
 394   // TODO: Discard not yet supported
 395   Preserve,
 396   PreserveBreaks,
 397   PreserveSpaces,
 398   BreakSpaces,
 399 };
 400
 401 // See nsStyleText
 402 enum class StyleTextWrapMode : uint8_t {
 403   Wrap = 0,
 404   Nowrap,
 405 };
 406
 407 // See nsStyleText
 408 // TODO: this will become StyleTextWrapStyle when we turn text-wrap
 409 // (see https://bugzilla.mozilla.org/show_bug.cgi?id=1758391) and
 410 // white-space (https://bugzilla.mozilla.org/show_bug.cgi?id=1852478)
 411 // into shorthands.
 412 enum class StyleTextWrapStyle : uint8_t {
 413   Auto = 0,
 414   Stable,
 415   Balance,
 416 };
 417
 418 // ruby-align, see nsStyleText
 419 enum class StyleRubyAlign : uint8_t {
 420   Start,
 421   Center,
 422   SpaceBetween,
 423   SpaceAround,
 424 };
 425
 426 // See nsStyleText
 427 enum class StyleTextSizeAdjust : uint8_t {
 428   None,
 429   Auto,
 430 };
 431
 432 // See nsStyleVisibility
 433 enum class StyleTextOrientation : uint8_t {
 434   Mixed,
 435   Upright,
 436   Sideways,
 437 };
 438
 439 // Whether flexbox visibility: collapse items use legacy -moz-box behavior or
 440 // not.
 441 enum class StyleMozBoxCollapse : uint8_t {
 442   Flex,
 443   Legacy,
 444 };
 445
 446 // See nsStyleText
 447 enum class StyleTextCombineUpright : uint8_t {
 448   None,
 449   All,
 450 };
 451
 452 // See nsStyleText
 453 enum class StyleUnicodeBidi : uint8_t {
 454   Normal,
 455   Embed,
 456   Isolate,
 457   BidiOverride,
 458   IsolateOverride,
 459   Plaintext
 460 };
 461
 462 enum class StyleTableLayout : uint8_t {
 463   Auto,
 464   Fixed,
 465 };
 466
 467 enum class StyleEmptyCells : uint8_t {
 468   Hide,
 469   Show,
 470 };
 471
 472 // See nsStyleUIReset
 473 enum class StyleImeMode : uint8_t {
 474   Auto,
 475   Normal,
 476   Active,
 477   Disabled,
 478   Inactive,
 479 };
 480
 481 // See nsStyleSVG
 482
 483 // -moz-window-shadow
 484 enum class StyleWindowShadow : uint8_t {
 485   Auto,
 486   None,
 487 };
 488
 489 // dominant-baseline
 490 enum class StyleDominantBaseline : uint8_t {
 491   Auto,
 492   Ideographic,
 493   Alphabetic,
 494   Hanging,
 495   Mathematical,
 496   Central,
 497   Middle,
 498   TextAfterEdge,
 499   TextBeforeEdge,
 500 };
 501
 502 // mask-type
 503 enum class StyleMaskType : uint8_t {
 504   Luminance,
 505   Alpha,
 506 };
 507
 508 // shape-rendering
 509 enum class StyleShapeRendering : uint8_t {
 510   Auto,
 511   Optimizespeed,
 512   Crispedges,
 513   Geometricprecision,
 514 };
 515
 516 // stroke-linecap
 517 enum class StyleStrokeLinecap : uint8_t {
 518   Butt,
 519   Round,
 520   Square,
 521 };
 522
 523 // stroke-linejoin
 524 enum class StyleStrokeLinejoin : uint8_t {
 525   Miter,
 526   Round,
 527   Bevel,
 528 };
 529
 530 // text-anchor
 531 enum class StyleTextAnchor : uint8_t {
 532   Start,
 533   Middle,
 534   End,
 535 };
 536
 537 // text-rendering
 538 enum class StyleTextRendering : uint8_t {
 539   Auto,
 540   Optimizespeed,
 541   Optimizelegibility,
 542   Geometricprecision,
 543 };
 544
 545 // color-interpolation and color-interpolation-filters
 546 enum class StyleColorInterpolation : uint8_t {
 547   Auto = 0,
 548   Srgb = 1,
 549   Linearrgb = 2,
 550 };
 551
 552 // vector-effect
 553 enum class StyleVectorEffect : uint8_t { None = 0, NonScalingStroke = 1 };
 554
 555 // 3d Transforms - Backface visibility
 556 enum class StyleBackfaceVisibility : uint8_t { Hidden = 0, Visible = 1 };
 557
 558 // blending
 559 enum class StyleBlend : uint8_t {
 560   Normal = 0,
 561   Multiply,
 562   Screen,
 563   Overlay,
 564   Darken,
 565   Lighten,
 566   ColorDodge,
 567   ColorBurn,
 568   HardLight,
 569   SoftLight,
 570   Difference,
 571   Exclusion,
 572   Hue,
 573   Saturation,
 574   Color,
 575   Luminosity,
 576   PlusLighter,
 577 };
 578
 579 // composite
 580 enum class StyleMaskComposite : uint8_t {
 581   Add = 0,
 582   Subtract,
 583   Intersect,
 584   Exclude
 585 };
 586
 587 // scroll-behavior
 588 enum class StyleScrollBehavior : uint8_t {
 589   Auto,
 590   Smooth,
 591 };
 592
 593 }  // namespace mozilla
 594
 595 #endif /* nsStyleConsts_h___ */