/*
 * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
 *           (C) 2000 Antti Koivisto (koivisto@kde.org)
 *           (C) 2000 Dirk Mueller (mueller@kde.org)
 * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
 * reserved.
 * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
 * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
 * (http://www.torchmobile.com/)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 */

#ifndef ComputedStyleConstants_h
#define ComputedStyleConstants_h

#include "core/ComputedStyleBaseConstants.h"
#include <cstddef>

namespace blink {

// TODO(sashab): Change these enums to enum classes with an unsigned underlying
// type. Enum classes provide better type safety, and forcing an unsigned
// underlying type prevents msvc from interpreting enums as negative numbers.
// See: crbug.com/628043

// Sides used when drawing borders and outlines. The values should run clockwise
// from top.
enum BoxSide { BSTop, BSRight, BSBottom, BSLeft };

// See core/dom/stylerecalc.md for an explanation on what each state means
enum StyleRecalcChange {
  NoChange,
  NoInherit,
  UpdatePseudoElements,
  IndependentInherit,
  Inherit,
  Force,
  Reattach,
  ReattachNoLayoutObject
};

enum class PrintColorAdjust : unsigned { Economy, Exact };

// Static pseudo styles. Dynamic ones are produced on the fly.
enum PseudoId {
  // The order must be NOP ID, public IDs, and then internal IDs.
  // If you add or remove a public ID, you must update _pseudoBits in
  // ComputedStyle.
  PseudoIdNone,
  PseudoIdFirstLine,
  PseudoIdFirstLetter,
  PseudoIdBefore,
  PseudoIdAfter,
  PseudoIdBackdrop,
  PseudoIdSelection,
  PseudoIdFirstLineInherited,
  PseudoIdScrollbar,
  // Internal IDs follow:
  PseudoIdScrollbarThumb,
  PseudoIdScrollbarButton,
  PseudoIdScrollbarTrack,
  PseudoIdScrollbarTrackPiece,
  PseudoIdScrollbarCorner,
  PseudoIdResizer,
  PseudoIdInputListButton,
  // Special values follow:
  AfterLastInternalPseudoId,
  FirstPublicPseudoId = PseudoIdFirstLine,
  FirstInternalPseudoId = PseudoIdScrollbarThumb,
  PublicPseudoIdMask =
      ((1 << FirstInternalPseudoId) - 1) & ~((1 << FirstPublicPseudoId) - 1),
  ElementPseudoIdMask = (1 << (PseudoIdBefore - 1)) |
                        (1 << (PseudoIdAfter - 1)) |
                        (1 << (PseudoIdBackdrop - 1))
};

enum ColumnFill { ColumnFillBalance, ColumnFillAuto };

enum ColumnSpan { ColumnSpanNone = 0, ColumnSpanAll };

enum EBorderCollapse { BorderCollapseSeparate = 0, BorderCollapseCollapse = 1 };

// These have been defined in the order of their precedence for
// border-collapsing. Do not change this order! This order also must match the
// order in CSSValueKeywords.in.
enum EBorderStyle {
  BorderStyleNone,
  BorderStyleHidden,
  BorderStyleInset,
  BorderStyleGroove,
  BorderStyleOutset,
  BorderStyleRidge,
  BorderStyleDotted,
  BorderStyleDashed,
  BorderStyleSolid,
  BorderStyleDouble
};

enum EBorderPrecedence {
  BorderPrecedenceOff,
  BorderPrecedenceTable,
  BorderPrecedenceColumnGroup,
  BorderPrecedenceColumn,
  BorderPrecedenceRowGroup,
  BorderPrecedenceRow,
  BorderPrecedenceCell
};

enum OutlineIsAuto { OutlineIsAutoOff = 0, OutlineIsAutoOn };

enum EPosition {
  StaticPosition = 0,
  RelativePosition = 1,
  AbsolutePosition = 2,
  StickyPosition = 3,
  // This value is required to pack our bits efficiently in LayoutObject.
  FixedPosition = 6
};

enum EMarginCollapse {
  MarginCollapseCollapse,
  MarginCollapseSeparate,
  MarginCollapseDiscard
};

// Box decoration attributes. Not inherited.

enum EBoxDecorationBreak { BoxDecorationBreakSlice, BoxDecorationBreakClone };

// Box attributes. Not inherited.

enum EBoxSizing { BoxSizingContentBox, BoxSizingBorderBox };

// Random visual rendering model attributes. Not inherited.

enum EOverflowAnchor { AnchorVisible, AnchorNone, AnchorAuto };

enum EOverflow {
  OverflowVisible,
  OverflowHidden,
  OverflowScroll,
  OverflowAuto,
  OverflowOverlay,
  OverflowPagedX,
  OverflowPagedY
};

enum EVerticalAlign {
  VerticalAlignBaseline,
  VerticalAlignMiddle,
  VerticalAlignSub,
  VerticalAlignSuper,
  VerticalAlignTextTop,
  VerticalAlignTextBottom,
  VerticalAlignTop,
  VerticalAlignBottom,
  VerticalAlignBaselineMiddle,
  VerticalAlignLength
};

enum EClear { ClearNone = 0, ClearLeft = 1, ClearRight = 2, ClearBoth = 3 };

enum ETableLayout { TableLayoutAuto, TableLayoutFixed };

enum TextCombine { TextCombineNone, TextCombineAll };

enum EFillAttachment {
  ScrollBackgroundAttachment,
  LocalBackgroundAttachment,
  FixedBackgroundAttachment
};

enum EFillBox { BorderFillBox, PaddingFillBox, ContentFillBox, TextFillBox };

inline EFillBox enclosingFillBox(EFillBox boxA, EFillBox boxB) {
  if (boxA == BorderFillBox || boxB == BorderFillBox)
    return BorderFillBox;
  if (boxA == PaddingFillBox || boxB == PaddingFillBox)
    return PaddingFillBox;
  if (boxA == ContentFillBox || boxB == ContentFillBox)
    return ContentFillBox;
  return TextFillBox;
}

enum EFillRepeat { RepeatFill, NoRepeatFill, RoundFill, SpaceFill };

enum EFillLayerType { BackgroundFillLayer, MaskFillLayer };

// CSS3 Background Values
enum EFillSizeType { Contain, Cover, SizeLength, SizeNone };

// CSS3 Background Position
enum BackgroundEdgeOrigin { TopEdge, RightEdge, BottomEdge, LeftEdge };

// CSS Mask Source Types
enum EMaskSourceType { MaskAlpha, MaskLuminance };

// Deprecated Flexible Box Properties

enum EBoxPack { BoxPackStart, BoxPackCenter, BoxPackEnd, BoxPackJustify };
enum EBoxAlignment { BSTRETCH, BSTART, BCENTER, BEND, BBASELINE };
enum EBoxOrient { HORIZONTAL, VERTICAL };
enum EBoxLines { SINGLE, MULTIPLE };
enum EBoxDirection { BNORMAL, BREVERSE };

// CSS3 Flexbox Properties

enum EFlexDirection { FlowRow, FlowRowReverse, FlowColumn, FlowColumnReverse };
enum EFlexWrap { FlexNoWrap, FlexWrap, FlexWrapReverse };

enum ETextSecurity { TSNONE, TSDISC, TSCIRCLE, TSSQUARE };

// CSS3 User Modify Properties

enum EUserModify { READ_ONLY, READ_WRITE, READ_WRITE_PLAINTEXT_ONLY };

// CSS3 User Drag Values

enum EUserDrag { DRAG_AUTO, DRAG_NONE, DRAG_ELEMENT };

// CSS3 User Select Values

enum EUserSelect { SELECT_NONE, SELECT_TEXT, SELECT_ALL };

// CSS3 Image Values
enum ObjectFit {
  ObjectFitFill,
  ObjectFitContain,
  ObjectFitCover,
  ObjectFitNone,
  ObjectFitScaleDown
};

// Word Break Values. Matches WinIE and CSS3

enum EWordBreak {
  NormalWordBreak,
  BreakAllWordBreak,
  KeepAllWordBreak,
  BreakWordBreak
};

enum EOverflowWrap { NormalOverflowWrap, BreakOverflowWrap };

enum LineBreak {
  LineBreakAuto,
  LineBreakLoose,
  LineBreakNormal,
  LineBreakStrict,
  LineBreakAfterWhiteSpace
};

enum EResize { RESIZE_NONE, RESIZE_BOTH, RESIZE_HORIZONTAL, RESIZE_VERTICAL };

// The order of this enum must match the order of the list style types in
// CSSValueKeywords.in.
enum class EListStyleType : unsigned {
  Disc,
  Circle,
  Square,
  DecimalListStyle,
  DecimalLeadingZero,
  ArabicIndic,
  Bengali,
  Cambodian,
  Khmer,
  Devanagari,
  Gujarati,
  Gurmukhi,
  Kannada,
  Lao,
  Malayalam,
  Mongolian,
  Myanmar,
  Oriya,
  Persian,
  Urdu,
  Telugu,
  Tibetan,
  Thai,
  LowerRoman,
  UpperRoman,
  LowerGreek,
  LowerAlpha,
  LowerLatin,
  UpperAlpha,
  UpperLatin,
  CjkEarthlyBranch,
  CjkHeavenlyStem,
  EthiopicHalehame,
  EthiopicHalehameAm,
  EthiopicHalehameTiEr,
  EthiopicHalehameTiEt,
  Hangul,
  HangulConsonant,
  KoreanHangulFormal,
  KoreanHanjaFormal,
  KoreanHanjaInformal,
  Hebrew,
  Armenian,
  LowerArmenian,
  UpperArmenian,
  Georgian,
  CJKIdeographic,
  SimpChineseFormal,
  SimpChineseInformal,
  TradChineseFormal,
  TradChineseInformal,
  Hiragana,
  Katakana,
  HiraganaIroha,
  KatakanaIroha,
  NoneListStyle
};

enum QuoteType { OPEN_QUOTE, CLOSE_QUOTE, NO_OPEN_QUOTE, NO_CLOSE_QUOTE };

enum EAnimPlayState { AnimPlayStatePlaying, AnimPlayStatePaused };

enum class EWhiteSpace : unsigned {
  Normal,
  Pre,
  PreWrap,
  PreLine,
  Nowrap,
  KhtmlNowrap
};

// The order of this enum must match the order of the text align values in
// CSSValueKeywords.in.
enum class ETextAlign : unsigned {
  Left,
  Right,
  Center,
  Justify,
  WebkitLeft,
  WebkitRight,
  WebkitCenter,
  Start,
  End,
};

enum ETextTransform { CAPITALIZE, UPPERCASE, LOWERCASE, TTNONE };

static const size_t TextDecorationBits = 4;
enum TextDecoration {
  TextDecorationNone = 0x0,
  TextDecorationUnderline = 0x1,
  TextDecorationOverline = 0x2,
  TextDecorationLineThrough = 0x4,
  TextDecorationBlink = 0x8
};
inline TextDecoration operator|(TextDecoration a, TextDecoration b) {
  return TextDecoration(int(a) | int(b));
}
inline TextDecoration& operator|=(TextDecoration& a, TextDecoration b) {
  return a = a | b;
}

enum TextDecorationStyle {
  TextDecorationStyleSolid,
  TextDecorationStyleDouble,
  TextDecorationStyleDotted,
  TextDecorationStyleDashed,
  TextDecorationStyleWavy
};

static const size_t TextDecorationSkipBits = 3;
enum TextDecorationSkip {
  TextDecorationSkipNone = 0x0,
  TextDecorationSkipObjects = 0x1,
  TextDecorationSkipInk = 0x2
};
inline TextDecorationSkip operator|(TextDecorationSkip a,
                                    TextDecorationSkip b) {
  return TextDecorationSkip(static_cast<unsigned>(a) |
                            static_cast<unsigned>(b));
}
inline TextDecorationSkip& operator|=(TextDecorationSkip& a,
                                      TextDecorationSkip b) {
  return a = a | b;
}

enum TextAlignLast {
  TextAlignLastAuto,
  TextAlignLastStart,
  TextAlignLastEnd,
  TextAlignLastLeft,
  TextAlignLastRight,
  TextAlignLastCenter,
  TextAlignLastJustify
};

enum TextUnderlinePosition {
  // FIXME: Implement support for 'under left' and 'under right' values.
  TextUnderlinePositionAuto,
  TextUnderlinePositionUnder
};

enum EBreak {
  BreakAuto,
  BreakAvoid,
  BreakAvoidColumn,
  BreakAvoidPage,
  // Values below are only allowed for break-after and break-before. Values
  // above are also allowed for break-inside (in addition to break-after and
  // break-before).
  BreakValueLastAllowedForBreakInside = BreakAvoidPage,
  BreakColumn,
  BreakLeft,
  BreakPage,
  BreakRecto,
  BreakRight,
  BreakVerso,
  BreakValueLastAllowedForBreakAfterAndBefore = BreakVerso,
  BreakAlways  // Only needed by {page,-webkit-column}-break-{after,before}
               // shorthands.
};

enum class EListStylePosition : unsigned { Outside, Inside };

enum class ECursor : unsigned {
  // The following must match the order in CSSValueKeywords.in.
  Auto,
  Cross,
  Default,
  Pointer,
  Move,
  VerticalText,
  Cell,
  ContextMenu,
  Alias,
  Progress,
  NoDrop,
  NotAllowed,
  ZoomIn,
  ZoomOut,
  EResize,
  NeResize,
  NwResize,
  NResize,
  SeResize,
  SwResize,
  SResize,
  WResize,
  EwResize,
  NsResize,
  NeswResize,
  NwseResize,
  ColResize,
  RowResize,
  Text,
  Wait,
  Help,
  AllScroll,
  WebkitGrab,
  WebkitGrabbing,

  // The following are handled as exceptions so don't need to match.
  Copy,
  None
};

// The order of this enum must match the order of the display values in
// CSSValueKeywords.in.
enum class EDisplay : unsigned {
  Inline,
  Block,
  ListItem,
  InlineBlock,
  Table,
  InlineTable,
  TableRowGroup,
  TableHeaderGroup,
  TableFooterGroup,
  TableRow,
  TableColumnGroup,
  TableColumn,
  TableCell,
  TableCaption,
  Box,
  InlineBox,
  Flex,
  InlineFlex,
  Grid,
  InlineGrid,
  Contents,
  None
};

enum EInsideLink { NotInsideLink, InsideUnvisitedLink, InsideVisitedLink };

enum EPointerEvents {
  PE_NONE,
  PE_AUTO,
  PE_STROKE,
  PE_FILL,
  PE_PAINTED,
  PE_VISIBLE,
  PE_VISIBLE_STROKE,
  PE_VISIBLE_FILL,
  PE_VISIBLE_PAINTED,
  PE_BOUNDINGBOX,
  PE_ALL
};

enum ETransformStyle3D { TransformStyle3DFlat, TransformStyle3DPreserve3D };

enum OffsetRotationType { OffsetRotationAuto, OffsetRotationFixed };

enum EBackfaceVisibility {
  BackfaceVisibilityVisible,
  BackfaceVisibilityHidden
};

enum ELineClampType { LineClampLineCount, LineClampPercentage };

enum Hyphens { HyphensNone, HyphensManual, HyphensAuto };

enum ESpeak {
  SpeakNone,
  SpeakNormal,
  SpeakSpellOut,
  SpeakDigits,
  SpeakLiteralPunctuation,
  SpeakNoPunctuation
};

enum TextEmphasisFill { TextEmphasisFillFilled, TextEmphasisFillOpen };

enum TextEmphasisMark {
  TextEmphasisMarkNone,
  TextEmphasisMarkAuto,
  TextEmphasisMarkDot,
  TextEmphasisMarkCircle,
  TextEmphasisMarkDoubleCircle,
  TextEmphasisMarkTriangle,
  TextEmphasisMarkSesame,
  TextEmphasisMarkCustom
};

enum TextEmphasisPosition {
  TextEmphasisPositionOver,
  TextEmphasisPositionUnder
};

enum TextOrientation {
  TextOrientationMixed,
  TextOrientationUpright,
  TextOrientationSideways
};

enum TextOverflow { TextOverflowClip = 0, TextOverflowEllipsis };

enum EImageRendering {
  ImageRenderingAuto,
  ImageRenderingOptimizeSpeed,
  ImageRenderingOptimizeQuality,
  ImageRenderingOptimizeContrast,
  ImageRenderingPixelated
};

enum Order { LogicalOrder = 0, VisualOrder };

enum RubyPosition { RubyPositionBefore, RubyPositionAfter };

static const size_t GridAutoFlowBits = 4;
enum InternalGridAutoFlowAlgorithm {
  InternalAutoFlowAlgorithmSparse = 0x1,
  InternalAutoFlowAlgorithmDense = 0x2
};

enum InternalGridAutoFlowDirection {
  InternalAutoFlowDirectionRow = 0x4,
  InternalAutoFlowDirectionColumn = 0x8
};

enum GridAutoFlow {
  AutoFlowRow = InternalAutoFlowAlgorithmSparse | InternalAutoFlowDirectionRow,
  AutoFlowColumn =
      InternalAutoFlowAlgorithmSparse | InternalAutoFlowDirectionColumn,
  AutoFlowRowDense =
      InternalAutoFlowAlgorithmDense | InternalAutoFlowDirectionRow,
  AutoFlowColumnDense =
      InternalAutoFlowAlgorithmDense | InternalAutoFlowDirectionColumn
};

enum DraggableRegionMode {
  DraggableRegionNone,
  DraggableRegionDrag,
  DraggableRegionNoDrag
};

static const size_t TouchActionBits = 6;
enum TouchAction {
  TouchActionNone = 0x0,
  TouchActionPanLeft = 0x1,
  TouchActionPanRight = 0x2,
  TouchActionPanX = TouchActionPanLeft | TouchActionPanRight,
  TouchActionPanUp = 0x4,
  TouchActionPanDown = 0x8,
  TouchActionPanY = TouchActionPanUp | TouchActionPanDown,
  TouchActionPan = TouchActionPanX | TouchActionPanY,
  TouchActionPinchZoom = 0x10,
  TouchActionManipulation = TouchActionPan | TouchActionPinchZoom,
  TouchActionDoubleTapZoom = 0x20,
  TouchActionAuto = TouchActionManipulation | TouchActionDoubleTapZoom
};
inline TouchAction operator|(TouchAction a, TouchAction b) {
  return static_cast<TouchAction>(int(a) | int(b));
}
inline TouchAction& operator|=(TouchAction& a, TouchAction b) {
  return a = a | b;
}
inline TouchAction operator&(TouchAction a, TouchAction b) {
  return static_cast<TouchAction>(int(a) & int(b));
}
inline TouchAction& operator&=(TouchAction& a, TouchAction b) {
  return a = a & b;
}

enum EIsolation { IsolationAuto, IsolationIsolate };

static const size_t ContainmentBits = 4;
enum Containment {
  ContainsNone = 0x0,
  ContainsLayout = 0x1,
  ContainsStyle = 0x2,
  ContainsPaint = 0x4,
  ContainsSize = 0x8,
  ContainsStrict =
      ContainsLayout | ContainsStyle | ContainsPaint | ContainsSize,
  ContainsContent = ContainsLayout | ContainsStyle | ContainsPaint,
};
inline Containment operator|(Containment a, Containment b) {
  return Containment(int(a) | int(b));
}
inline Containment& operator|=(Containment& a, Containment b) {
  return a = a | b;
}

enum ItemPosition {
  ItemPositionAuto,  // It will mean 'normal' after running the StyleAdjuster to
                     // avoid resolving the initial values.
  ItemPositionNormal,
  ItemPositionStretch,
  ItemPositionBaseline,
  ItemPositionLastBaseline,
  ItemPositionCenter,
  ItemPositionStart,
  ItemPositionEnd,
  ItemPositionSelfStart,
  ItemPositionSelfEnd,
  ItemPositionFlexStart,
  ItemPositionFlexEnd,
  ItemPositionLeft,
  ItemPositionRight
};

enum OverflowAlignment {
  OverflowAlignmentDefault,
  OverflowAlignmentUnsafe,
  OverflowAlignmentSafe
};

enum ItemPositionType { NonLegacyPosition, LegacyPosition };

enum ContentPosition {
  ContentPositionNormal,
  ContentPositionBaseline,
  ContentPositionLastBaseline,
  ContentPositionCenter,
  ContentPositionStart,
  ContentPositionEnd,
  ContentPositionFlexStart,
  ContentPositionFlexEnd,
  ContentPositionLeft,
  ContentPositionRight
};

enum ContentDistributionType {
  ContentDistributionDefault,
  ContentDistributionSpaceBetween,
  ContentDistributionSpaceAround,
  ContentDistributionSpaceEvenly,
  ContentDistributionStretch
};

// Reasonable maximum to prevent insane font sizes from causing crashes on some
// platforms (such as Windows).
static const float maximumAllowedFontSize = 10000.0f;

enum TextIndentLine { TextIndentFirstLine, TextIndentEachLine };
enum TextIndentType { TextIndentNormal, TextIndentHanging };

enum CSSBoxType {
  BoxMissing = 0,
  MarginBox,
  BorderBox,
  PaddingBox,
  ContentBox
};

enum ScrollSnapType {
  ScrollSnapTypeNone,
  ScrollSnapTypeMandatory,
  ScrollSnapTypeProximity
};

enum AutoRepeatType { NoAutoRepeat, AutoFill, AutoFit };

}  // namespace blink

#endif  // ComputedStyleConstants_h