blob: 1de3837aefeb6ef8891b4eeafca2a2c766092dcd (
plain)
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
|
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CSSVariableData_h
#define CSSVariableData_h
#include "core/css/StylePropertySet.h"
#include "core/css/parser/CSSParserToken.h"
#include "core/css/parser/CSSParserTokenRange.h"
#include "wtf/RefCounted.h"
#include "wtf/text/WTFString.h"
namespace blink {
class CSSParserTokenRange;
class CSSVariableData : public RefCounted<CSSVariableData> {
WTF_MAKE_NONCOPYABLE(CSSVariableData);
USING_FAST_MALLOC(CSSVariableData);
public:
static PassRefPtr<CSSVariableData> create(const CSSParserTokenRange& range, bool needsVariableResolution = true)
{
return adoptRef(new CSSVariableData(range, needsVariableResolution));
}
static PassRefPtr<CSSVariableData> createResolved(const Vector<CSSParserToken>& resolvedTokens, const CSSVariableData& unresolvedData)
{
return adoptRef(new CSSVariableData(resolvedTokens, unresolvedData.m_backingString));
}
CSSParserTokenRange tokenRange() { return m_tokens; }
const Vector<CSSParserToken>& tokens() const { return m_tokens; }
bool operator==(const CSSVariableData& other) const;
bool needsVariableResolution() const { return m_needsVariableResolution; }
StylePropertySet* propertySet();
private:
CSSVariableData(const CSSParserTokenRange&, bool needsVariableResolution);
// We can safely copy the tokens (which have raw pointers to substrings) because
// StylePropertySets contain references to CSSCustomPropertyDeclarations, which
// point to the unresolved CSSVariableData values that own the backing strings
// this will potentially reference.
CSSVariableData(const Vector<CSSParserToken>& resolvedTokens, String backingString)
: m_backingString(backingString)
, m_tokens(resolvedTokens)
, m_needsVariableResolution(false)
, m_cachedPropertySet(false)
{ }
void consumeAndUpdateTokens(const CSSParserTokenRange&);
template<typename CharacterType> void updateTokens(const CSSParserTokenRange&);
String m_backingString;
Vector<CSSParserToken> m_tokens;
const bool m_needsVariableResolution;
// Parsed representation for @apply
bool m_cachedPropertySet;
RefPtrWillBePersistent<StylePropertySet> m_propertySet;
};
} // namespace blink
#endif // CSSVariableData_h
|
