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
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Copyright (C) 2016 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:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
// OWNER 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.
#pragma once
#include "CSSDeferredParser.h"
#include "CSSParser.h"
#include "CSSParserMode.h"
#include "CSSParserTokenRange.h"
#include "CSSProperty.h"
#include "CSSPropertyNames.h"
#include "CSSPropertySourceData.h"
#include "StyleRule.h"
#include <memory>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class CSSParserObserver;
class CSSParserObserverWrapper;
class CSSSelectorList;
class CSSTokenizer;
class StyleRuleKeyframe;
class StyleRule;
class StyleRuleBase;
class StyleRuleCharset;
class StyleRuleFontFace;
class StyleRuleImport;
class StyleRuleKeyframes;
class StyleRuleMedia;
class StyleRuleNamespace;
class StyleRulePage;
class StyleRuleSupports;
class StyleRuleViewport;
class StyleSheetContents;
class ImmutableStyleProperties;
class Element;
class MutableStyleProperties;
class CSSParserImpl {
WTF_MAKE_NONCOPYABLE(CSSParserImpl);
public:
CSSParserImpl(const CSSParserContext&, const String&, StyleSheetContents* = nullptr, CSSParserObserverWrapper* = nullptr, CSSParser::RuleParsing = CSSParser::RuleParsing::Normal);
enum AllowedRulesType {
// As per css-syntax, css-cascade and css-namespaces, @charset rules
// must come first, followed by @import then @namespace.
// AllowImportRules actually means we allow @import and any rules thay
// may follow it, i.e. @namespace rules and regular rules.
// AllowCharsetRules and AllowNamespaceRules behave similarly.
AllowCharsetRules,
AllowImportRules,
AllowNamespaceRules,
RegularRules,
KeyframeRules,
ApplyRules, // For @apply inside style rules
NoRules, // For parsing at-rules inside declaration lists
};
static CSSParser::ParseResult parseValue(MutableStyleProperties*, CSSPropertyID, const String&, bool important, const CSSParserContext&);
static CSSParser::ParseResult parseCustomPropertyValue(MutableStyleProperties*, const AtomicString& propertyName, const String&, bool important, const CSSParserContext&);
static Ref<ImmutableStyleProperties> parseInlineStyleDeclaration(const String&, Element*);
static bool parseDeclarationList(MutableStyleProperties*, const String&, const CSSParserContext&);
static RefPtr<StyleRuleBase> parseRule(const String&, const CSSParserContext&, StyleSheetContents*, AllowedRulesType);
static void parseStyleSheet(const String&, const CSSParserContext&, StyleSheetContents*, CSSParser::RuleParsing);
static CSSSelectorList parsePageSelector(CSSParserTokenRange, StyleSheetContents*);
static std::unique_ptr<Vector<double>> parseKeyframeKeyList(const String&);
bool supportsDeclaration(CSSParserTokenRange&);
static void parseDeclarationListForInspector(const String&, const CSSParserContext&, CSSParserObserver&);
static void parseStyleSheetForInspector(const String&, const CSSParserContext&, StyleSheetContents*, CSSParserObserver&);
static Ref<ImmutableStyleProperties> parseDeferredDeclaration(CSSParserTokenRange, const CSSParserContext&, StyleSheetContents*);
static void parseDeferredRuleList(CSSParserTokenRange, CSSDeferredParser&, Vector<RefPtr<StyleRuleBase>>&);
static void parseDeferredKeyframeList(CSSParserTokenRange, CSSDeferredParser&, StyleRuleKeyframes&);
CSSTokenizer* tokenizer() const { return m_tokenizer.get(); };
CSSDeferredParser* deferredParser() const { return m_deferredParser.get(); }
private:
CSSParserImpl(const CSSParserContext&, StyleSheetContents*);
CSSParserImpl(CSSDeferredParser&);
enum RuleListType {
TopLevelRuleList,
RegularRuleList,
KeyframesRuleList
};
// Returns whether the first encountered rule was valid
template<typename T>
bool consumeRuleList(CSSParserTokenRange, RuleListType, T callback);
// These two functions update the range they're given
RefPtr<StyleRuleBase> consumeAtRule(CSSParserTokenRange&, AllowedRulesType);
RefPtr<StyleRuleBase> consumeQualifiedRule(CSSParserTokenRange&, AllowedRulesType);
static RefPtr<StyleRuleCharset> consumeCharsetRule(CSSParserTokenRange prelude);
RefPtr<StyleRuleImport> consumeImportRule(CSSParserTokenRange prelude);
RefPtr<StyleRuleNamespace> consumeNamespaceRule(CSSParserTokenRange prelude);
RefPtr<StyleRuleMedia> consumeMediaRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
RefPtr<StyleRuleSupports> consumeSupportsRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
RefPtr<StyleRuleViewport> consumeViewportRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
RefPtr<StyleRuleFontFace> consumeFontFaceRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
RefPtr<StyleRuleKeyframes> consumeKeyframesRule(bool webkitPrefixed, CSSParserTokenRange prelude, CSSParserTokenRange block);
RefPtr<StyleRulePage> consumePageRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
#if ENABLE(CSS_REGIONS)
RefPtr<StyleRuleRegion> consumeRegionRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
#endif
// Updates m_parsedProperties
// FIXME-NEWPARSER: Support "apply"
// void consumeApplyRule(CSSParserTokenRange prelude);
RefPtr<StyleRuleKeyframe> consumeKeyframeStyleRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
RefPtr<StyleRule> consumeStyleRule(CSSParserTokenRange prelude, CSSParserTokenRange block);
void consumeDeclarationList(CSSParserTokenRange, StyleRule::Type);
void consumeDeclaration(CSSParserTokenRange, StyleRule::Type);
void consumeDeclarationValue(CSSParserTokenRange, CSSPropertyID, bool important, StyleRule::Type);
void consumeCustomPropertyValue(CSSParserTokenRange, const AtomicString& propertyName, bool important);
static std::unique_ptr<Vector<double>> consumeKeyframeKeyList(CSSParserTokenRange);
Ref<DeferredStyleProperties> createDeferredStyleProperties(const CSSParserTokenRange& propertyRange);
void adoptTokenizerEscapedStrings();
// FIXME: Can we build StylePropertySets directly?
// FIXME: Investigate using a smaller inline buffer
ParsedPropertyVector m_parsedProperties;
const CSSParserContext& m_context;
RefPtr<StyleSheetContents> m_styleSheet;
// For deferred property parsing.
RefPtr<CSSDeferredParser> m_deferredParser;
// For normal parsing.
std::unique_ptr<CSSTokenizer> m_tokenizer;
// For the inspector
CSSParserObserverWrapper* m_observerWrapper { nullptr };
};
} // namespace WebCore
|
