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
|
/*
* Copyright (C) 2024 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 "RenderStyleConstants.h"
#include <wtf/text/AtomString.h>
#include <wtf/text/AtomStringHash.h>
#include <wtf/text/TextStream.h>
namespace WebCore::Style {
struct PseudoElementIdentifier {
PseudoId pseudoId;
// highlight name for ::highlight or view transition name for view transition pseudo elements.
AtomString nameArgument { nullAtom() };
friend bool operator==(const PseudoElementIdentifier& a, const PseudoElementIdentifier& b) = default;
};
inline void add(Hasher& hasher, const PseudoElementIdentifier& pseudoElementIdentifier)
{
add(hasher, pseudoElementIdentifier.pseudoId, pseudoElementIdentifier.nameArgument);
}
inline WTF::TextStream& operator<<(WTF::TextStream& ts, const PseudoElementIdentifier& pseudoElementIdentifier)
{
ts << "::" << pseudoElementIdentifier.pseudoId;
if (!pseudoElementIdentifier.nameArgument.isNull())
ts << "(" << pseudoElementIdentifier.nameArgument << ")";
return ts;
}
inline bool isNamedViewTransitionPseudoElement(const std::optional<Style::PseudoElementIdentifier>& pseudoElementIdentifier)
{
if (!pseudoElementIdentifier)
return false;
switch (pseudoElementIdentifier->pseudoId) {
case PseudoId::ViewTransitionGroup:
case PseudoId::ViewTransitionImagePair:
case PseudoId::ViewTransitionOld:
case PseudoId::ViewTransitionNew:
return true;
default:
return false;
}
};
} // namespace WebCore
namespace WTF {
template<>
struct HashTraits<WebCore::Style::PseudoElementIdentifier> : GenericHashTraits<WebCore::Style::PseudoElementIdentifier> {
typedef WebCore::Style::PseudoElementIdentifier EmptyValueType;
static constexpr bool emptyValueIsZero = false;
static EmptyValueType emptyValue() { return WebCore::Style::PseudoElementIdentifier { WebCore::PseudoId::AfterLastInternalPseudoId, nullAtom() }; }
static void constructDeletedValue(WebCore::Style::PseudoElementIdentifier& pseudoElementIdentifier) { pseudoElementIdentifier = WebCore::Style::PseudoElementIdentifier { WebCore::PseudoId::None, nullAtom() }; }
static bool isDeletedValue(const WebCore::Style::PseudoElementIdentifier& pseudoElementIdentifier) { return pseudoElementIdentifier == WebCore::Style::PseudoElementIdentifier { WebCore::PseudoId::None, nullAtom() }; }
};
template<>
struct DefaultHash<WebCore::Style::PseudoElementIdentifier> {
static unsigned hash(const WebCore::Style::PseudoElementIdentifier& data) { return computeHash(data); }
static bool equal(const WebCore::Style::PseudoElementIdentifier& a, const WebCore::Style::PseudoElementIdentifier& b) { return a == b; }
static const bool safeToCompareToEmptyOrDeleted = false;
};
template<>
struct HashTraits<std::optional<WebCore::Style::PseudoElementIdentifier>> : GenericHashTraits<std::optional<WebCore::Style::PseudoElementIdentifier>> {
typedef std::optional<WebCore::Style::PseudoElementIdentifier> EmptyValueType;
static constexpr bool emptyValueIsZero = false;
static EmptyValueType emptyValue() { return WebCore::Style::PseudoElementIdentifier { WebCore::PseudoId::AfterLastInternalPseudoId, nullAtom() }; }
static void constructDeletedValue(std::optional<WebCore::Style::PseudoElementIdentifier>& pseudoElementIdentifier) { pseudoElementIdentifier = WebCore::Style::PseudoElementIdentifier { WebCore::PseudoId::None, nullAtom() }; }
static bool isDeletedValue(const std::optional<WebCore::Style::PseudoElementIdentifier>& pseudoElementIdentifier) { return pseudoElementIdentifier == WebCore::Style::PseudoElementIdentifier { WebCore::PseudoId::None, nullAtom() }; }
};
template<>
struct DefaultHash<std::optional<WebCore::Style::PseudoElementIdentifier>> {
static unsigned hash(const std::optional<WebCore::Style::PseudoElementIdentifier>& data) { return computeHash(data); }
static bool equal(const std::optional<WebCore::Style::PseudoElementIdentifier>& a, const std::optional<WebCore::Style::PseudoElementIdentifier>& b) { return a == b; }
static const bool safeToCompareToEmptyOrDeleted = false;
};
} // namespace WTF
|
