Source/WebCore/css/CSSUnits.h

   1 /*
   2  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
   3  * Copyright (C) 2004, 2005, 2006, 2008, 2019 Apple Inc. All rights reserved.
   4  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public License
  17  * along with this library; see the file COPYING.LIB.  If not, write to
  18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA 02110-1301, USA.
  20  */
  21
  22 #pragma once
  23
  24 namespace WTF {
  25 class TextStream;
  26 }
  27
  28 namespace WebCore {
  29
  30 // FIXME: No need to use all capitals and a CSS prefix on all these names. Should fix that.
  31 enum class CSSUnitType : uint8_t {
  32     CSS_UNKNOWN,
  33     CSS_NUMBER,
  34     CSS_INTEGER,
  35     CSS_PERCENTAGE,
  36     CSS_EMS,
  37     CSS_EXS,
  38     CSS_PX,
  39     CSS_CM,
  40     CSS_MM,
  41     CSS_IN,
  42     CSS_PT,
  43     CSS_PC,
  44     CSS_DEG,
  45     CSS_RAD,
  46     CSS_GRAD,
  47     CSS_MS,
  48     CSS_S,
  49     CSS_HZ,
  50     CSS_KHZ,
  51     CSS_DIMENSION,
  52     CSS_STRING,
  53     CSS_URI,
  54     CSS_IDENT,
  55     CSS_ATTR,
  56     CSS_COUNTER,
  57     CSS_RECT,
  58     CSS_RGBCOLOR,
  59
  60     CSS_VW,
  61     CSS_VH,
  62     CSS_VMIN,
  63     CSS_VMAX,
  64     CSS_VB,
  65     CSS_VI,
  66     CSS_SVW,
  67     CSS_SVH,
  68     CSS_SVMIN,
  69     CSS_SVMAX,
  70     CSS_SVB,
  71     CSS_SVI,
  72     CSS_LVW,
  73     CSS_LVH,
  74     CSS_LVMIN,
  75     CSS_LVMAX,
  76     CSS_LVB,
  77     CSS_LVI,
  78     CSS_DVW,
  79     CSS_DVH,
  80     CSS_DVMIN,
  81     CSS_DVMAX,
  82     CSS_DVB,
  83     CSS_DVI,
  84     FirstViewportCSSUnitType = CSS_VW,
  85     LastViewporCSSUnitType = CSS_DVI,
  86
  87     CSS_CQW,
  88     CSS_CQH,
  89     CSS_CQI,
  90     CSS_CQB,
  91     CSS_CQMIN,
  92     CSS_CQMAX,
  93
  94     CSS_DPPX,
  95     CSS_X,
  96     CSS_DPI,
  97     CSS_DPCM,
  98     CSS_FR,
  99     CSS_Q,
 100     CSS_LHS,
 101     CSS_RLHS,
 102
 103     CustomIdent,
 104
 105     CSS_PAIR,
 106     CSS_UNICODE_RANGE,
 107     CSS_TURN,
 108     CSS_REMS,
 109     CSS_CHS,
 110     CSS_IC,
 111
 112     CSS_COUNTER_NAME,
 113
 114     CSS_SHAPE,
 115
 116     CSS_QUAD,
 117
 118     CSS_CALC,
 119     CSS_CALC_PERCENTAGE_WITH_NUMBER,
 120     CSS_CALC_PERCENTAGE_WITH_LENGTH,
 121
 122     CSS_FONT_FAMILY,
 123
 124     CSS_PROPERTY_ID,
 125     CSS_VALUE_ID,
 126
 127     // This value is used to handle quirky margins in reflow roots (body, td, and th) like WinIE.
 128     // The basic idea is that a stylesheet can use the value __qem (for quirky em) instead of em.
 129     // When the quirky value is used, if you're in quirks mode, the margin will collapse away
 130     // inside a table cell. This quirk is specified in the HTML spec but our impl is different.
 131     CSS_QUIRKY_EMS
 132
 133     // Note that CSSValue allocates 7 bits for m_primitiveUnitType, so there can be no value here > 127.
 134 };
 135
 136 enum class CSSUnitCategory : uint8_t {
 137     Number,
 138     Percent,
 139     Length,
 140     Angle,
 141     Time,
 142     Frequency,
 143     Resolution,
 144     Other
 145 };
 146
 147 CSSUnitCategory unitCategory(CSSUnitType);
 148 CSSUnitType canonicalUnitTypeForCategory(CSSUnitCategory);
 149 CSSUnitType canonicalUnitType(CSSUnitType);
 150
 151 WTF::TextStream& operator<<(WTF::TextStream&, CSSUnitCategory);
 152 WTF::TextStream& operator<<(WTF::TextStream&, CSSUnitType);
 153
 154 } // namespace WebCore