| /* |
| * (C) 1999-2003 Lars Knoll ([email protected]) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2012, 2013, 2019 Apple Inc. All rights reserved. |
| * |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "CSSUnits.h" |
| |
| #include <wtf/text/TextStream.h> |
| |
| namespace WebCore { |
| |
| CSSUnitCategory unitCategory(CSSUnitType type) |
| { |
| switch (type) { |
| case CSSUnitType::CSS_NUMBER: |
| case CSSUnitType::CSS_INTEGER: |
| return CSSUnitCategory::Number; |
| case CSSUnitType::CSS_PERCENTAGE: |
| return CSSUnitCategory::Percent; |
| // https://drafts.csswg.org/css-values-4/#absolute-lengths |
| case CSSUnitType::CSS_PX: |
| case CSSUnitType::CSS_CM: |
| case CSSUnitType::CSS_MM: |
| case CSSUnitType::CSS_IN: |
| case CSSUnitType::CSS_PT: |
| case CSSUnitType::CSS_PC: |
| case CSSUnitType::CSS_Q: |
| return CSSUnitCategory::AbsoluteLength; |
| // https://drafts.csswg.org/css-values-4/#font-relative-lengths |
| case CSSUnitType::CSS_EM: |
| case CSSUnitType::CSS_EX: |
| case CSSUnitType::CSS_CAP: |
| case CSSUnitType::CSS_CH: |
| case CSSUnitType::CSS_IC: |
| case CSSUnitType::CSS_LH: |
| case CSSUnitType::CSS_RCAP: |
| case CSSUnitType::CSS_RCH: |
| case CSSUnitType::CSS_REM: |
| case CSSUnitType::CSS_REX: |
| case CSSUnitType::CSS_RIC: |
| case CSSUnitType::CSS_RLH: |
| return CSSUnitCategory::FontRelativeLength; |
| // https://drafts.csswg.org/css-values-4/#viewport-relative-lengths |
| case CSSUnitType::CSS_VW: |
| case CSSUnitType::CSS_SVW: |
| case CSSUnitType::CSS_LVW: |
| case CSSUnitType::CSS_DVW: |
| case CSSUnitType::CSS_VH: |
| case CSSUnitType::CSS_SVH: |
| case CSSUnitType::CSS_LVH: |
| case CSSUnitType::CSS_DVH: |
| case CSSUnitType::CSS_VI: |
| case CSSUnitType::CSS_SVI: |
| case CSSUnitType::CSS_LVI: |
| case CSSUnitType::CSS_DVI: |
| case CSSUnitType::CSS_VB: |
| case CSSUnitType::CSS_SVB: |
| case CSSUnitType::CSS_LVB: |
| case CSSUnitType::CSS_DVB: |
| case CSSUnitType::CSS_VMIN: |
| case CSSUnitType::CSS_LVMIN: |
| case CSSUnitType::CSS_SVMIN: |
| case CSSUnitType::CSS_DVMIN: |
| case CSSUnitType::CSS_VMAX: |
| case CSSUnitType::CSS_SVMAX: |
| case CSSUnitType::CSS_LVMAX: |
| case CSSUnitType::CSS_DVMAX: |
| return CSSUnitCategory::ViewportPercentageLength; |
| // https://drafts.csswg.org/css-values-4/#time |
| case CSSUnitType::CSS_MS: |
| case CSSUnitType::CSS_S: |
| return CSSUnitCategory::Time; |
| // https://drafts.csswg.org/css-values-4/#angles |
| case CSSUnitType::CSS_DEG: |
| case CSSUnitType::CSS_RAD: |
| case CSSUnitType::CSS_GRAD: |
| case CSSUnitType::CSS_TURN: |
| return CSSUnitCategory::Angle; |
| // https://drafts.csswg.org/css-values-4/#frequency |
| case CSSUnitType::CSS_HZ: |
| case CSSUnitType::CSS_KHZ: |
| return CSSUnitCategory::Frequency; |
| // https://drafts.csswg.org/css-values-4/#resolution |
| case CSSUnitType::CSS_DPPX: |
| case CSSUnitType::CSS_X: |
| case CSSUnitType::CSS_DPI: |
| case CSSUnitType::CSS_DPCM: |
| return CSSUnitCategory::Resolution; |
| case CSSUnitType::CSS_FR: |
| return CSSUnitCategory::Flex; |
| case CSSUnitType::CSS_CQW: |
| case CSSUnitType::CSS_CQH: |
| case CSSUnitType::CSS_CQI: |
| case CSSUnitType::CSS_CQB: |
| case CSSUnitType::CSS_CQMIN: |
| case CSSUnitType::CSS_CQMAX: |
| case CSSUnitType::CSS_ATTR: |
| case CSSUnitType::CSS_CALC: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_ANGLE: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| case CSSUnitType::CSS_DIMENSION: |
| case CSSUnitType::CSS_FONT_FAMILY: |
| case CSSUnitType::CSS_IDENT: |
| case CSSUnitType::CSS_PROPERTY_ID: |
| case CSSUnitType::CSS_QUIRKY_EM: |
| case CSSUnitType::CSS_STRING: |
| case CSSUnitType::CSS_UNKNOWN: |
| case CSSUnitType::CSS_VALUE_ID: |
| case CSSUnitType::CustomIdent: |
| return CSSUnitCategory::Other; |
| } |
| ASSERT_NOT_REACHED(); |
| return CSSUnitCategory::Other; |
| } |
| |
| CSSUnitType canonicalUnitTypeForCategory(CSSUnitCategory category) |
| { |
| switch (category) { |
| case CSSUnitCategory::Number: |
| return CSSUnitType::CSS_NUMBER; |
| case CSSUnitCategory::AbsoluteLength: |
| return CSSUnitType::CSS_PX; |
| case CSSUnitCategory::Percent: |
| return CSSUnitType::CSS_PERCENTAGE; |
| case CSSUnitCategory::Time: |
| return CSSUnitType::CSS_S; |
| case CSSUnitCategory::Angle: |
| return CSSUnitType::CSS_DEG; |
| case CSSUnitCategory::Frequency: |
| return CSSUnitType::CSS_HZ; |
| case CSSUnitCategory::Resolution: |
| return CSSUnitType::CSS_DPPX; |
| case CSSUnitCategory::Flex: |
| return CSSUnitType::CSS_FR; |
| case CSSUnitCategory::FontRelativeLength: |
| case CSSUnitCategory::ViewportPercentageLength: |
| case CSSUnitCategory::Other: |
| return CSSUnitType::CSS_UNKNOWN; |
| } |
| ASSERT_NOT_REACHED(); |
| return CSSUnitType::CSS_UNKNOWN; |
| } |
| |
| CSSUnitType canonicalUnitTypeForUnitType(CSSUnitType unitType) |
| { |
| return canonicalUnitTypeForCategory(unitCategory(unitType)); |
| } |
| |
| TextStream& operator<<(TextStream& ts, CSSUnitCategory category) |
| { |
| switch (category) { |
| case CSSUnitCategory::Number: ts << "Number"_s; break; |
| case CSSUnitCategory::Percent: ts << "Percent"_s; break; |
| case CSSUnitCategory::AbsoluteLength: ts << "AsboluteLength"_s; break; |
| case CSSUnitCategory::ViewportPercentageLength: ts << "ViewportPercentageLength"_s; break; |
| case CSSUnitCategory::FontRelativeLength: ts << "FontRelativeLength"_s; break; |
| case CSSUnitCategory::Angle: ts << "Angle"_s; break; |
| case CSSUnitCategory::Time: ts << "Time"_s; break; |
| case CSSUnitCategory::Frequency: ts << "Frequency"_s; break; |
| case CSSUnitCategory::Resolution: ts << "Resolution"_s; break; |
| case CSSUnitCategory::Flex: ts << "Flex"_s; break; |
| case CSSUnitCategory::Other: ts << "Other"_s; break; |
| } |
| return ts; |
| } |
| |
| TextStream& operator<<(TextStream& ts, CSSUnitType unitType) |
| { |
| switch (unitType) { |
| case CSSUnitType::CSS_UNKNOWN: ts << "unknown"_s; break; |
| case CSSUnitType::CSS_NUMBER: ts << "number"_s; break; |
| case CSSUnitType::CSS_INTEGER: ts << "integer"_s; break; |
| case CSSUnitType::CSS_PERCENTAGE: ts << "percentage"_s; break; |
| case CSSUnitType::CSS_EM: ts << "em"_s; break; |
| case CSSUnitType::CSS_EX: ts << "ex"_s; break; |
| case CSSUnitType::CSS_PX: ts << "px"_s; break; |
| case CSSUnitType::CSS_CM: ts << "cm"_s; break; |
| case CSSUnitType::CSS_MM: ts << "mm"_s; break; |
| case CSSUnitType::CSS_IN: ts << "in"_s; break; |
| case CSSUnitType::CSS_PT: ts << "pt"_s; break; |
| case CSSUnitType::CSS_PC: ts << "pc"_s; break; |
| case CSSUnitType::CSS_DEG: ts << "deg"_s; break; |
| case CSSUnitType::CSS_RAD: ts << "rad"_s; break; |
| case CSSUnitType::CSS_GRAD: ts << "grad"_s; break; |
| case CSSUnitType::CSS_MS: ts << "ms"_s; break; |
| case CSSUnitType::CSS_S: ts << 's'; break; |
| case CSSUnitType::CSS_HZ: ts << "hz"_s; break; |
| case CSSUnitType::CSS_KHZ: ts << "khz"_s; break; |
| case CSSUnitType::CSS_DIMENSION: ts << "dimension"_s; break; |
| case CSSUnitType::CSS_STRING: ts << "string"_s; break; |
| case CSSUnitType::CSS_IDENT: ts << "ident"_s; break; |
| case CSSUnitType::CustomIdent: ts << "custom-ident"_s; break; |
| case CSSUnitType::CSS_ATTR: ts << "attr"_s; break; |
| case CSSUnitType::CSS_VW: ts << "vw"_s; break; |
| case CSSUnitType::CSS_VH: ts << "vh"_s; break; |
| case CSSUnitType::CSS_VMIN: ts << "vmin"_s; break; |
| case CSSUnitType::CSS_VMAX: ts << "vmax"_s; break; |
| case CSSUnitType::CSS_VB: ts << "vb"_s; break; |
| case CSSUnitType::CSS_VI: ts << "vi"_s; break; |
| case CSSUnitType::CSS_SVW: ts << "svw"_s; break; |
| case CSSUnitType::CSS_SVH: ts << "svh"_s; break; |
| case CSSUnitType::CSS_SVMIN: ts << "svmin"_s; break; |
| case CSSUnitType::CSS_SVMAX: ts << "svmax"_s; break; |
| case CSSUnitType::CSS_SVB: ts << "svb"_s; break; |
| case CSSUnitType::CSS_SVI: ts << "svi"_s; break; |
| case CSSUnitType::CSS_LVW: ts << "lvw"_s; break; |
| case CSSUnitType::CSS_LVH: ts << "lvh"_s; break; |
| case CSSUnitType::CSS_LVMIN: ts << "lvmin"_s; break; |
| case CSSUnitType::CSS_LVMAX: ts << "lvmax"_s; break; |
| case CSSUnitType::CSS_LVB: ts << "lvb"_s; break; |
| case CSSUnitType::CSS_LVI: ts << "lvi"_s; break; |
| case CSSUnitType::CSS_DVW: ts << "dvw"_s; break; |
| case CSSUnitType::CSS_DVH: ts << "dvh"_s; break; |
| case CSSUnitType::CSS_DVMIN: ts << "dvmin"_s; break; |
| case CSSUnitType::CSS_DVMAX: ts << "dvmax"_s; break; |
| case CSSUnitType::CSS_DVB: ts << "dvb"_s; break; |
| case CSSUnitType::CSS_DVI: ts << "dvi"_s; break; |
| case CSSUnitType::CSS_DPPX: ts << "dppx"_s; break; |
| case CSSUnitType::CSS_X: ts << 'x'; break; |
| case CSSUnitType::CSS_DPI: ts << "dpi"_s; break; |
| case CSSUnitType::CSS_DPCM: ts << "dpcm"_s; break; |
| case CSSUnitType::CSS_FR: ts << "fr"_s; break; |
| case CSSUnitType::CSS_Q: ts << 'q'; break; |
| case CSSUnitType::CSS_LH: ts << "lh"_s; break; |
| case CSSUnitType::CSS_RLH: ts << "rlh"_s; break; |
| case CSSUnitType::CSS_CQW: ts << "cqw"_s; break; |
| case CSSUnitType::CSS_CQH: ts << "cqh"_s; break; |
| case CSSUnitType::CSS_CQI: ts << "cqi"_s; break; |
| case CSSUnitType::CSS_CQB: ts << "cqb"_s; break; |
| case CSSUnitType::CSS_CQMAX: ts << "cqmax"_s; break; |
| case CSSUnitType::CSS_CQMIN: ts << "cqmin"_s; break; |
| case CSSUnitType::CSS_TURN: ts << "turn"_s; break; |
| case CSSUnitType::CSS_RCAP: ts << "rcap"_s; break; |
| case CSSUnitType::CSS_RCH: ts << "rch"_s; break; |
| case CSSUnitType::CSS_REM: ts << "rem"_s; break; |
| case CSSUnitType::CSS_REX: ts << "rex"_s; break; |
| case CSSUnitType::CSS_RIC: ts << "ric"_s; break; |
| case CSSUnitType::CSS_CAP: ts << "cap"_s; break; |
| case CSSUnitType::CSS_CH: ts << "ch"_s; break; |
| case CSSUnitType::CSS_IC: ts << "ic"_s; break; |
| case CSSUnitType::CSS_CALC: ts << "calc"_s; break; |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_ANGLE: ts << "calc_percentage_with_angle"_s; break; |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: ts << "calc_percentage_with_length"_s; break; |
| case CSSUnitType::CSS_FONT_FAMILY: ts << "font_family"_s; break; |
| case CSSUnitType::CSS_PROPERTY_ID: ts << "property_id"_s; break; |
| case CSSUnitType::CSS_VALUE_ID: ts << "value_id"_s; break; |
| case CSSUnitType::CSS_QUIRKY_EM: ts << "quirky_em"_s; break; |
| } |
| return ts; |
| } |
| |
| double conversionToCanonicalUnitsScaleFactor(CSSUnitType unit) |
| { |
| switch (unit) { |
| case CSSUnitType::CSS_MS: |
| return CSS::secondsPerMillisecond; |
| case CSSUnitType::CSS_CM: |
| return CSS::pixelsPerCm; |
| case CSSUnitType::CSS_DPCM: |
| return CSS::dppxPerDpcm; |
| case CSSUnitType::CSS_MM: |
| return CSS::pixelsPerMm; |
| case CSSUnitType::CSS_Q: |
| return CSS::pixelsPerQ; |
| case CSSUnitType::CSS_IN: |
| return CSS::pixelsPerInch; |
| case CSSUnitType::CSS_DPI: |
| return CSS::dppxPerDpi; |
| case CSSUnitType::CSS_PT: |
| return CSS::pixelsPerPt; |
| case CSSUnitType::CSS_PC: |
| return CSS::pixelsPerPc; |
| case CSSUnitType::CSS_RAD: |
| return degreesPerRadianDouble; |
| case CSSUnitType::CSS_GRAD: |
| return degreesPerGradientDouble; |
| case CSSUnitType::CSS_TURN: |
| return degreesPerTurnDouble; |
| case CSSUnitType::CSS_KHZ: |
| return CSS::hertzPerKilohertz; |
| default: |
| return 1.0; |
| } |
| } |
| |
| bool conversionToCanonicalUnitRequiresConversionData(CSSUnitType unit) |
| { |
| switch (unit) { |
| case CSSUnitType::CSS_CM: |
| case CSSUnitType::CSS_MM: |
| case CSSUnitType::CSS_Q: |
| case CSSUnitType::CSS_IN: |
| case CSSUnitType::CSS_PT: |
| case CSSUnitType::CSS_PC: |
| case CSSUnitType::CSS_EM: |
| case CSSUnitType::CSS_EX: |
| case CSSUnitType::CSS_LH: |
| case CSSUnitType::CSS_CAP: |
| case CSSUnitType::CSS_CH: |
| case CSSUnitType::CSS_IC: |
| case CSSUnitType::CSS_RCAP: |
| case CSSUnitType::CSS_RCH: |
| case CSSUnitType::CSS_REM: |
| case CSSUnitType::CSS_REX: |
| case CSSUnitType::CSS_RIC: |
| case CSSUnitType::CSS_RLH: |
| case CSSUnitType::CSS_VW: |
| case CSSUnitType::CSS_VH: |
| case CSSUnitType::CSS_VMIN: |
| case CSSUnitType::CSS_VMAX: |
| case CSSUnitType::CSS_VB: |
| case CSSUnitType::CSS_VI: |
| case CSSUnitType::CSS_SVW: |
| case CSSUnitType::CSS_SVH: |
| case CSSUnitType::CSS_SVMIN: |
| case CSSUnitType::CSS_SVMAX: |
| case CSSUnitType::CSS_SVB: |
| case CSSUnitType::CSS_SVI: |
| case CSSUnitType::CSS_LVW: |
| case CSSUnitType::CSS_LVH: |
| case CSSUnitType::CSS_LVMIN: |
| case CSSUnitType::CSS_LVMAX: |
| case CSSUnitType::CSS_LVB: |
| case CSSUnitType::CSS_LVI: |
| case CSSUnitType::CSS_DVW: |
| case CSSUnitType::CSS_DVH: |
| case CSSUnitType::CSS_DVMIN: |
| case CSSUnitType::CSS_DVMAX: |
| case CSSUnitType::CSS_DVB: |
| case CSSUnitType::CSS_DVI: |
| case CSSUnitType::CSS_CQW: |
| case CSSUnitType::CSS_CQH: |
| case CSSUnitType::CSS_CQI: |
| case CSSUnitType::CSS_CQB: |
| case CSSUnitType::CSS_CQMIN: |
| case CSSUnitType::CSS_CQMAX: |
| return true; |
| |
| case CSSUnitType::CSS_NUMBER: |
| case CSSUnitType::CSS_INTEGER: |
| case CSSUnitType::CSS_PERCENTAGE: |
| case CSSUnitType::CSS_PX: |
| case CSSUnitType::CSS_DEG: |
| case CSSUnitType::CSS_RAD: |
| case CSSUnitType::CSS_GRAD: |
| case CSSUnitType::CSS_TURN: |
| case CSSUnitType::CSS_S: |
| case CSSUnitType::CSS_MS: |
| case CSSUnitType::CSS_HZ: |
| case CSSUnitType::CSS_KHZ: |
| case CSSUnitType::CSS_DPPX: |
| case CSSUnitType::CSS_X: |
| case CSSUnitType::CSS_DPI: |
| case CSSUnitType::CSS_DPCM: |
| case CSSUnitType::CSS_FR: |
| case CSSUnitType::CSS_ATTR: |
| case CSSUnitType::CSS_CALC: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_ANGLE: |
| case CSSUnitType::CSS_CALC_PERCENTAGE_WITH_LENGTH: |
| case CSSUnitType::CSS_DIMENSION: |
| case CSSUnitType::CSS_FONT_FAMILY: |
| case CSSUnitType::CSS_IDENT: |
| case CSSUnitType::CSS_PROPERTY_ID: |
| case CSSUnitType::CSS_QUIRKY_EM: |
| case CSSUnitType::CSS_STRING: |
| case CSSUnitType::CSS_UNKNOWN: |
| case CSSUnitType::CSS_VALUE_ID: |
| case CSSUnitType::CustomIdent: |
| break; |
| } |
| |
| return false; |
| } |
| |
| } // namespace WebCore |
