1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
* Copyright (C) 2021 Metrological Group B.V.
* Copyright (C) 2021 Igalia S.L.
* Copyright (C) 2023-2024 Apple Inc. All rights reserved.
* Copyright (C) 2024 Samuel Weinig <sam@webkit.org>
*
* 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. ``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
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* 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 "CSSPrimitiveNumericTypes.h"
#include "CSSValueKeywords.h"
#include "SystemFontDatabase.h"
#include <optional>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
#include <wtf/text/AtomString.h>
namespace WebCore {
class CSSParserTokenRange;
class CSSPrimitiveValue;
class CSSValue;
class CSSValueList;
class ScriptExecutionContext;
struct CSSParserContext;
enum CSSParserMode : uint8_t;
enum CSSValueID : uint16_t;
enum class FontTechnology : uint8_t;
namespace WebKitFontFamilyNames {
enum class FamilyNamesIndex;
}
namespace CSSPropertyParserHelpers {
// MARK: - Font
// normal | italic | oblique <angle [-90deg,90deg]>?
using UnresolvedFontStyleObliqueAngle = CSS::Angle<CSS::Range{-90, 90}>;
using UnresolvedFontStyle = std::variant<CSSValueID, UnresolvedFontStyleObliqueAngle>;
// normal | small-caps
using UnresolvedFontVariantCaps = CSSValueID;
// normal | bold | bolder | lighter | <number [1,1000]>
using UnresolvedFontWeightNumber = CSS::Number<CSS::Range{1, 1000}>;
using UnresolvedFontWeight = std::variant<CSSValueID, UnresolvedFontWeightNumber>;
// normal | <percentage [0,∞]> | ultra-condensed | extra-condensed | condensed | semi-condensed | semi-expanded | expanded | extra-expanded | ultra-expanded
using UnresolvedFontStretchPercentage = CSS::Percentage<CSS::Nonnegative>;
using UnresolvedFontStretch = std::variant<CSSValueID, UnresolvedFontStretchPercentage>;
// <absolute-size> | <relative-size> | <length-percentage [0,∞]>
using UnresolvedFontSize = std::variant<CSSValueID, CSS::LengthPercentage<CSS::Nonnegative>>;
// normal | <number [0,∞]> | <length-percentage [0,∞]>
using UnresolvedFontLineHeight = std::variant<CSSValueID, CSS::Number<CSS::Nonnegative>, CSS::LengthPercentage<CSS::Nonnegative>>;
// [ <family-name> | <generic-family> ]#
using UnresolvedFontFamilyName = std::variant<CSSValueID, AtomString>;
using UnresolvedFontFamily = Vector<UnresolvedFontFamilyName>;
struct UnresolvedFont {
UnresolvedFontStyle style;
UnresolvedFontVariantCaps variantCaps;
UnresolvedFontWeight weight;
UnresolvedFontStretch stretch;
UnresolvedFontSize size;
UnresolvedFontLineHeight lineHeight;
UnresolvedFontFamily family;
};
// MARK: 'font' (shorthand)
// https://drafts.csswg.org/css-fonts-4/#font-prop
std::optional<UnresolvedFont> parseUnresolvedFont(const String&, const CSSParserContext&);
// MARK: 'font-weight'
// https://drafts.csswg.org/css-fonts-4/#font-weight-prop
RefPtr<CSSValue> consumeFontWeight(CSSParserTokenRange&, const CSSParserContext&);
// MARK: 'font-style'
// https://drafts.csswg.org/css-fonts-4/#font-style-prop
RefPtr<CSSValue> consumeFontStyle(CSSParserTokenRange&, const CSSParserContext&);
// MARK: 'font-family'
// https://drafts.csswg.org/css-fonts-4/#font-family-prop
RefPtr<CSSValue> consumeFontFamily(CSSParserTokenRange&, const CSSParserContext&);
// Sub-production of 'font-family': <generic-family>
// https://drafts.csswg.org/css-fonts-4/#generic-family-name-syntax
const AtomString& genericFontFamily(CSSValueID);
WebKitFontFamilyNames::FamilyNamesIndex genericFontFamilyIndex(CSSValueID);
// MARK: 'font-variant-ligatures'
// https://drafts.csswg.org/css-fonts-4/#propdef-font-variant-ligatures
RefPtr<CSSValue> consumeFontVariantLigatures(CSSParserTokenRange&, const CSSParserContext&);
// MARK: 'font-variant-east-asian'
// https://drafts.csswg.org/css-fonts-4/#font-variant-east-asian-prop
RefPtr<CSSValue> consumeFontVariantEastAsian(CSSParserTokenRange&, const CSSParserContext&);
// MARK: 'font-variant-alternates'
// https://drafts.csswg.org/css-fonts-4/#font-variant-alternates-prop
RefPtr<CSSValue> consumeFontVariantAlternates(CSSParserTokenRange&, const CSSParserContext&);
// MARK: 'font-variant-numeric'
// https://drafts.csswg.org/css-fonts-4/#font-variant-numeric-prop
RefPtr<CSSValue> consumeFontVariantNumeric(CSSParserTokenRange&, const CSSParserContext&);
// MARK: 'font-size-adjust'
// https://drafts.csswg.org/css-fonts-4/#font-size-adjust-prop
RefPtr<CSSValue> consumeFontSizeAdjust(CSSParserTokenRange&, const CSSParserContext&);
// MARK: - @font-face descriptor consumers
// MARK: @font-face 'font-family'
// https://drafts.csswg.org/css-fonts-4/#font-family-desc
RefPtr<CSSValue> consumeFontFaceFontFamily(CSSParserTokenRange&, const CSSParserContext&);
// MARK: @font-face 'src'
// https://drafts.csswg.org/css-fonts-4/#src-desc
RefPtr<CSSValueList> parseFontFaceSrc(const String&, const CSSParserContext&);
RefPtr<CSSValueList> consumeFontFaceSrc(CSSParserTokenRange&, const CSSParserContext&);
// Sub-production of 'src: <font-tech>
// https://drafts.csswg.org/css-fonts-4/#font-tech-values
Vector<FontTechnology> consumeFontTech(CSSParserTokenRange&, const CSSParserContext&, bool singleValue = false);
// Sub-production of 'src': <font-format>
// https://drafts.csswg.org/css-fonts-4/#font-format-values
String consumeFontFormat(CSSParserTokenRange&, const CSSParserContext&, bool rejectStringValues = false);
// MARK: @font-face 'size-adjust'
// https://drafts.csswg.org/css-fonts-5/#size-adjust-desc
RefPtr<CSSValue> parseFontFaceSizeAdjust(const String&, ScriptExecutionContext&);
// MARK: @font-face 'unicode-range'
// https://drafts.csswg.org/css-fonts-4/#unicode-range-desc
RefPtr<CSSValueList> parseFontFaceUnicodeRange(const String&, ScriptExecutionContext&);
RefPtr<CSSValueList> consumeFontFaceUnicodeRange(CSSParserTokenRange&, const CSSParserContext&);
// MARK: @font-face 'font-display'
// https://drafts.csswg.org/css-fonts-4/#descdef-font-face-font-display
RefPtr<CSSValue> parseFontFaceDisplay(const String&, ScriptExecutionContext&);
// MARK: @font-face 'font-style'
// https://drafts.csswg.org/css-fonts-4/#descdef-font-face-font-style
RefPtr<CSSValue> parseFontFaceFontStyle(const String&, ScriptExecutionContext&);
RefPtr<CSSValue> consumeFontFaceFontStyle(CSSParserTokenRange&, const CSSParserContext&);
// MARK: @font-face 'font-feature-tag'
// https://drafts.csswg.org/css-fonts-4/#feature-tag-value
RefPtr<CSSValue> consumeFeatureTagValue(CSSParserTokenRange&, const CSSParserContext&);
// MARK: @font-face 'font-feature-settings'
// https://drafts.csswg.org/css-fonts-4/#descdef-font-face-font-feature-settings
RefPtr<CSSValue> parseFontFaceFeatureSettings(const String&, ScriptExecutionContext&);
// MARK: @font-face 'font-variation-settings'
// https://drafts.csswg.org/css-fonts-4/#descdef-font-face-font-variation-settings
#if ENABLE(VARIATION_FONTS)
RefPtr<CSSValue> consumeVariationTagValue(CSSParserTokenRange&, const CSSParserContext&);
#endif
// MARK: @font-face 'font-stretch'
// https://drafts.csswg.org/css-fonts-4/#font-stretch-desc
RefPtr<CSSValue> parseFontFaceFontWidth(const String&, ScriptExecutionContext&);
RefPtr<CSSValue> consumeFontFaceFontWidth(CSSParserTokenRange&, const CSSParserContext&);
// MARK: @font-face 'font-weight'
// https://drafts.csswg.org/css-fonts-4/#descdef-font-face-font-weight
RefPtr<CSSValue> parseFontFaceFontWeight(const String&, ScriptExecutionContext&);
RefPtr<CSSValue> consumeFontFaceFontWeight(CSSParserTokenRange&, const CSSParserContext&);
// MARK: - @font-palette-values descriptor consumers:
// MARK: @font-palette-values 'font-family'
RefPtr<CSSValue> consumeFontPaletteValuesFontFamily(CSSParserTokenRange&, const CSSParserContext&);
// MARK: @font-palette-values 'override-colors'
// https://drafts.csswg.org/css-fonts-4/#descdef-font-palette-values-override-colors
RefPtr<CSSValue> consumeFontPaletteValuesOverrideColors(CSSParserTokenRange&, const CSSParserContext&);
// MARK: - @font-feature-values descriptor consumers
// MARK: @font-feature-values 'prelude family name list'
// https://drafts.csswg.org/css-fonts-4/#font-feature-values-syntax
Vector<AtomString> consumeFontFeatureValuesPreludeFamilyNameList(CSSParserTokenRange&, const CSSParserContext&);
// Template and inline implementations are at the bottom of the file for readability.
inline bool isSystemFontShorthand(CSSValueID valueID)
{
// This needs to stay in sync with SystemFontDatabase::FontShorthand.
static_assert(CSSValueStatusBar - CSSValueCaption == static_cast<SystemFontDatabase::FontShorthandUnderlyingType>(SystemFontDatabase::FontShorthand::StatusBar));
return valueID >= CSSValueCaption && valueID <= CSSValueStatusBar;
}
inline SystemFontDatabase::FontShorthand lowerFontShorthand(CSSValueID valueID)
{
// This needs to stay in sync with SystemFontDatabase::FontShorthand.
ASSERT(isSystemFontShorthand(valueID));
return static_cast<SystemFontDatabase::FontShorthand>(valueID - CSSValueCaption);
}
} // namespace CSSPropertyParserHelpers
} // namespace WebCore
|
