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/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "CSSValueKeywords.h"
#include "FontSelectionAlgorithm.h"
namespace WebCore {
inline bool isCSS21Weight(FontSelectionValue weight)
{
return weight == FontSelectionValue(100)
|| weight == FontSelectionValue(200)
|| weight == FontSelectionValue(300)
|| weight == FontSelectionValue(400)
|| weight == FontSelectionValue(500)
|| weight == FontSelectionValue(600)
|| weight == FontSelectionValue(700)
|| weight == FontSelectionValue(800)
|| weight == FontSelectionValue(900);
}
inline bool isCSS21Weight(int weight)
{
return !((weight % 100) || weight < 100 || weight > 900);
}
inline std::optional<CSSValueID> fontWeightKeyword(FontSelectionValue weight)
{
if (weight == normalWeightValue())
return CSSValueNormal;
if (weight == boldWeightValue())
return CSSValueBold;
return std::nullopt;
}
inline std::optional<FontSelectionValue> fontWeightValue(CSSValueID value)
{
switch (value) {
case CSSValueNormal:
return normalWeightValue();
case CSSValueBold:
case CSSValueBolder:
return boldWeightValue();
case CSSValueLighter:
return lightWeightValue();
default:
return std::nullopt;
}
}
inline std::optional<CSSValueID> fontStretchKeyword(FontSelectionValue stretch)
{
if (stretch == ultraCondensedStretchValue())
return CSSValueUltraCondensed;
if (stretch == extraCondensedStretchValue())
return CSSValueExtraCondensed;
if (stretch == condensedStretchValue())
return CSSValueCondensed;
if (stretch == semiCondensedStretchValue())
return CSSValueSemiCondensed;
if (stretch == normalStretchValue())
return CSSValueNormal;
if (stretch == semiExpandedStretchValue())
return CSSValueSemiExpanded;
if (stretch == expandedStretchValue())
return CSSValueExpanded;
if (stretch == extraExpandedStretchValue())
return CSSValueExtraExpanded;
if (stretch == ultraExpandedStretchValue())
return CSSValueUltraExpanded;
return std::nullopt;
}
inline std::optional<FontSelectionValue> fontStretchValue(CSSValueID value)
{
switch (value) {
case CSSValueUltraCondensed:
return ultraCondensedStretchValue();
case CSSValueExtraCondensed:
return extraCondensedStretchValue();
case CSSValueCondensed:
return condensedStretchValue();
case CSSValueSemiCondensed:
return semiCondensedStretchValue();
case CSSValueNormal:
return normalStretchValue();
case CSSValueSemiExpanded:
return semiExpandedStretchValue();
case CSSValueExpanded:
return expandedStretchValue();
case CSSValueExtraExpanded:
return extraExpandedStretchValue();
case CSSValueUltraExpanded:
return ultraExpandedStretchValue();
default:
return std::nullopt;
}
}
inline std::optional<CSSValueID> fontStyleKeyword(std::optional<FontSelectionValue> style, FontStyleAxis axis)
{
if (!style || style.value() == normalItalicValue())
return CSSValueNormal;
if (style.value() == italicValue())
return axis == FontStyleAxis::ital ? CSSValueItalic : CSSValueOblique;
return std::nullopt;
}
}
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