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
|
/*
* 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,
* 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.
*/
#include "config.h"
#include "StyleFontStyle.h"
#include "AnimationUtilities.h"
#include "CSSFontStyleWithAngleValue.h"
#include "CSSPropertyParserConsumer+Font.h"
#include "StyleBuilderChecking.h"
#include "StylePrimitiveKeyword+CSSValueCreation.h"
#include "StylePrimitiveNumericTypes+Blending.h"
#include "StylePrimitiveNumericTypes+Conversions.h"
namespace WebCore {
namespace Style {
// MARK: - Conversion
auto CSSValueConversion<FontStyle>::operator()(BuilderState& state, const CSSValue& value) -> FontStyle
{
if (RefPtr fontStyleValue = dynamicDowncast<CSSFontStyleWithAngleValue>(value))
return toStyle(fontStyleValue->obliqueAngle(), state);
RefPtr primitiveValue = requiredDowncast<CSSPrimitiveValue>(state, value);
if (!primitiveValue)
return CSS::Keyword::Normal { };
switch (auto valueID = primitiveValue->valueID(); valueID) {
case CSSValueNormal:
return CSS::Keyword::Normal { };
case CSSValueItalic:
return CSS::Keyword::Italic { };
case CSSValueOblique:
return CSS::Keyword::Oblique { };
default:
if (CSSPropertyParserHelpers::isSystemFontShorthand(valueID))
return CSS::Keyword::Normal { };
state.setCurrentPropertyInvalidAtComputedValueTime();
return CSS::Keyword::Normal { };
}
}
auto CSSValueCreation<FontStyle>::operator()(CSSValuePool& pool, const RenderStyle& style, const FontStyle& value) -> Ref<CSSValue>
{
if (!value.platformSlope() || !*value.platformSlope())
return createCSSValue(pool, style, CSS::Keyword::Normal { });
if (*value.platformSlope() == italicValue()) {
if (value.platformAxis() == FontStyleAxis::ital)
return createCSSValue(pool, style, CSS::Keyword::Italic { });
return createCSSValue(pool, style, CSS::Keyword::Oblique { });
}
return CSSFontStyleWithAngleValue::create(toCSS(FontStyle::Angle { static_cast<float>(*value.platformSlope()) }, style));
}
// MARK: - Blending
auto Blending<FontStyle>::canBlend(const FontStyle& a, const FontStyle& b) -> bool
{
return a.platformAxis() == FontStyleAxis::slnt && b.platformAxis() == FontStyleAxis::slnt;
}
auto Blending<FontStyle>::blend(const FontStyle& a, const FontStyle& b, const BlendingContext& context) -> FontStyle
{
if (context.isDiscrete)
return context.progress < 0.5 ? a : b;
if (!a.platformSlope() && !b.platformSlope())
return CSS::Keyword::Normal { };
return Style::blend(a.angle().value_or(FontStyle::Angle { 0 }), b.angle().value_or(FontStyle::Angle { 0 }), context);
}
} // namespace Style
} // namespace WebCore
|
