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
|
/*
* Copyright (C) 2025 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.
*/
#include "config.h"
#include "StyleTextEmphasisStyle.h"
#include "CSSPrimitiveValueMappings.h"
#include "CSSValueList.h"
#include "RenderStyle.h"
#include "StyleBuilderChecking.h"
#include "StylePrimitiveKeyword+CSSValueCreation.h"
#include "StylePrimitiveKeyword+Serialization.h"
#include "WritingMode.h"
#include <wtf/unicode/CharacterNames.h>
namespace WebCore {
namespace Style {
static TextEmphasisMark defaultTextEmphasisMark(WritingMode mode)
{
// "If only filled or open is specified, the shape keyword computes to circle in horizontal typographic modes and sesame in vertical typographic modes." - https://drafts.csswg.org/css-text-decor/#propdef-text-emphasis-style
return mode.isVerticalTypographic() ? TextEmphasisMark::Sesame : TextEmphasisMark::Circle;
}
static TextEmphasisStyle::Shape defaultTextEmphasisShape(WritingMode writingMode, TextEmphasisFill fill)
{
return { .fill = fill, .mark = defaultTextEmphasisMark(writingMode) };
}
static const AtomString& markStringFromShape(const TextEmphasisStyle::Shape& markShape)
{
switch (markShape.mark) {
case TextEmphasisMark::Dot: {
static MainThreadNeverDestroyed<const AtomString> filledDotString(span(bullet));
static MainThreadNeverDestroyed<const AtomString> openDotString(span(whiteBullet));
return markShape.fill == TextEmphasisFill::Filled ? filledDotString : openDotString;
}
case TextEmphasisMark::Circle: {
static MainThreadNeverDestroyed<const AtomString> filledCircleString(span(blackCircle));
static MainThreadNeverDestroyed<const AtomString> openCircleString(span(whiteCircle));
return markShape.fill == TextEmphasisFill::Filled ? filledCircleString : openCircleString;
}
case TextEmphasisMark::DoubleCircle: {
static MainThreadNeverDestroyed<const AtomString> filledDoubleCircleString(span(fisheye));
static MainThreadNeverDestroyed<const AtomString> openDoubleCircleString(span(bullseye));
return markShape.fill == TextEmphasisFill::Filled ? filledDoubleCircleString : openDoubleCircleString;
}
case TextEmphasisMark::Triangle: {
static MainThreadNeverDestroyed<const AtomString> filledTriangleString(span(blackUpPointingTriangle));
static MainThreadNeverDestroyed<const AtomString> openTriangleString(span(whiteUpPointingTriangle));
return markShape.fill == TextEmphasisFill::Filled ? filledTriangleString : openTriangleString;
}
case TextEmphasisMark::Sesame: {
static MainThreadNeverDestroyed<const AtomString> filledSesameString(span(sesameDot));
static MainThreadNeverDestroyed<const AtomString> openSesameString(span(whiteSesameDot));
return markShape.fill == TextEmphasisFill::Filled ? filledSesameString : openSesameString;
}
}
ASSERT_NOT_REACHED();
return emptyAtom();
}
const AtomString& TextEmphasisStyle::markString() const
{
return WTF::switchOn(value,
[&](const CSS::Keyword::None&) -> const AtomString& {
return nullAtom();
},
[&](const Shape& shape) -> const AtomString& {
return markStringFromShape(shape);
},
[&](const AtomString& customMark) -> const AtomString& {
return customMark;
}
);
}
// MARK: - Conversion
auto CSSValueConversion<TextEmphasisStyle>::operator()(BuilderState& state, const CSSValue& value) -> TextEmphasisStyle
{
if (RefPtr list = dynamicDowncast<CSSValueList>(value)) {
if (list->size() != 2) [[unlikely]] {
state.setCurrentPropertyInvalidAtComputedValueTime();
return CSS::Keyword::None { };
}
std::optional<TextEmphasisFill> fill;
std::optional<TextEmphasisMark> mark;
for (Ref item : *list) {
auto valueID = item->valueID();
if (valueID == CSSValueFilled || valueID == CSSValueOpen)
fill = fromCSSValueID<TextEmphasisFill>(valueID);
else
mark = fromCSSValueID<TextEmphasisMark>(valueID);
}
if (!fill || !mark) [[unlikely]] {
state.setCurrentPropertyInvalidAtComputedValueTime();
return CSS::Keyword::None { };
}
return TextEmphasisStyle::Shape { .fill = *fill, .mark = *mark };
}
RefPtr primitiveValue = requiredDowncast<CSSPrimitiveValue>(state, value);
if (!primitiveValue)
return CSS::Keyword::None { };
switch (primitiveValue->valueID()) {
case CSSValueInvalid:
break;
case CSSValueNone:
return CSS::Keyword::None { };
case CSSValueFilled:
case CSSValueOpen:
return defaultTextEmphasisShape(state.style().writingMode(), fromCSSValue<TextEmphasisFill>(*primitiveValue));
default:
return TextEmphasisStyle::Shape { .mark = fromCSSValue<TextEmphasisMark>(*primitiveValue) };
}
if (primitiveValue->isString())
return AtomString { primitiveValue->stringValue() };
state.setCurrentPropertyInvalidAtComputedValueTime();
return CSS::Keyword::None { };
}
} // namespace Style
} // namespace WebCore
|
